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EP0683123B1 - Rotary printing machine provided with a register device for aligning the paper web - Google Patents

Rotary printing machine provided with a register device for aligning the paper web Download PDF

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Publication number
EP0683123B1
EP0683123B1 EP95810301A EP95810301A EP0683123B1 EP 0683123 B1 EP0683123 B1 EP 0683123B1 EP 95810301 A EP95810301 A EP 95810301A EP 95810301 A EP95810301 A EP 95810301A EP 0683123 B1 EP0683123 B1 EP 0683123B1
Authority
EP
European Patent Office
Prior art keywords
web
roller
frame
infeed
rollers
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
EP95810301A
Other languages
German (de)
French (fr)
Other versions
EP0683123A1 (en
Inventor
Joachim Alfred Heinz Lapp
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
KBA Notasys SA
Original Assignee
De la Rue Giori SA
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by De la Rue Giori SA filed Critical De la Rue Giori SA
Publication of EP0683123A1 publication Critical patent/EP0683123A1/en
Application granted granted Critical
Publication of EP0683123B1 publication Critical patent/EP0683123B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65HHANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H23/00Registering, tensioning, smoothing or guiding webs
    • B65H23/02Registering, tensioning, smoothing or guiding webs transversely
    • B65H23/0204Sensing transverse register of web
    • B65H23/0212Sensing transverse register of web with an element utilising fluid flow
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B41PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41FPRINTING MACHINES OR PRESSES
    • B41F13/00Common details of rotary presses or machines
    • B41F13/02Conveying or guiding webs through presses or machines
    • B41F13/025Registering devices
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65HHANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H23/00Registering, tensioning, smoothing or guiding webs
    • B65H23/02Registering, tensioning, smoothing or guiding webs transversely
    • B65H23/032Controlling transverse register of web
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65HHANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H23/00Registering, tensioning, smoothing or guiding webs
    • B65H23/02Registering, tensioning, smoothing or guiding webs transversely
    • B65H23/032Controlling transverse register of web
    • B65H23/038Controlling transverse register of web by rollers
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65HHANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2403/00Power transmission; Driving means
    • B65H2403/50Driving mechanisms
    • B65H2403/55Tandem; twin or multiple mechanisms, i.e. performing the same operation
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65HHANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2404/00Parts for transporting or guiding the handled material
    • B65H2404/10Rollers
    • B65H2404/15Roller assembly, particular roller arrangement
    • B65H2404/152Arrangement of roller on a movable frame
    • B65H2404/1521Arrangement of roller on a movable frame rotating, pivoting or oscillating around an axis, e.g. parallel to the roller axis
    • B65H2404/15212Arrangement of roller on a movable frame rotating, pivoting or oscillating around an axis, e.g. parallel to the roller axis rotating, pivoting or oscillating around an axis perpendicular to the roller axis
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65HHANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2553/00Sensing or detecting means
    • B65H2553/10Sensing or detecting means using fluids, e.g. pneumatics

Definitions

  • the invention relates to a rotary web printing machine with two forming the pressure gap Cylinders, between which the paper web under Printing runs through at least one side, and with a register device for aligning the web, this device inlet and outlet rollers has, which guide the web and their position by measuring signals from web edge sensors using a Actuator is controllable.
  • EP-A-0 415 881 describes a web printing machine described with several printing units in which the paper web is driven by means of pull rollers and is performed, which on both sides of the pressure gap each Printing unit are installed.
  • the one in front the printing gap of each printing unit are each a paper web storage and one arranged in front Register device for lateral alignment of the Paper web installed, and that behind each printing nip a paper web storage is arranged downstream each of the lying drawing rollers.
  • the devices for lateral alignment of the paper web a rotating frame have, on which the paper web through to the Inlet and outlet rollers with frame ends is guided and its position by measurement signals from Web edge buttons for the purpose of correcting the position of the Paper web is controllable.
  • the arrangement of these devices in the well-known web press after EP-A-0 415 881 requires a considerable amount of space in the transport system of the paper web, before this the runs through the first paper web storage. You can also possible when passing the paper web storage and deviations from the correct one Paper web position can no longer be compensated.
  • Web presses are the printing units trained in the manner of sheet-fed printing units, in which the cylinders forming the pressure gap through cylinder pits have separate pressure zones.
  • the well-known web press set up for a so-called crawl step operation In order to avoid, that when going through the cylinder pits on the White unprinted strips of paper are created, such as with a continuous paper web transport would occur is the well-known web press set up for a so-called vocational step operation.
  • the paper web is only in front of and behind each printing unit as well as during one Printing process, when applied to the pressure zones of both Cylinder, with continuous speed transported, on the other hand when passing a cylinder pit, so in the free, not pinched state, slowed down, pulled back by the pull rollers accelerated again so that when passing the following printing zone, the paper web is synchronized again the cylinders are running.
  • FIG. 1 schematically shows a web printing machine, in which the paper web B is an intaglio printing unit passes through, which is in the manner of a sheet-fed printing unit with a plate cylinder 2 and with a Printing cylinder 3 is formed.
  • These two in Form machine frame 1 mounted cylinders 2 and 3 the printing nip S through which the paper web B passes, and have separated by cylinder pits 2b and 3b Pressure calipers 2a and 3a on the pressure zones form and in the case of the plate cylinder 2 Intaglio printing plates, in the case of the printing cylinder Wear print covers. In the case under consideration they have Cylinders with three pressure zones each.
  • the clamping elements for the Printing plates or the printing covers housed.
  • Pull rollers 4 are located in front of and behind the pressure nip S. or 5 installed as close as possible to the pressure gap should lie and which are controlled so that the Web section between these pull rollers in the above mentioned crawlage is transported. While During a printing phase, these pull rollers 4, 5 and the cylinders 2, 3 with the same peripheral speed.
  • the pull rollers 4 and 5 are known Suction rolls, which the looping section of the Hold the paper web under vacuum so that none Pressure rollers are required.
  • a paper web storage 6 or 7 in the form of a known vacuum accumulator Installed.
  • Behind the stencil rollers is a wiper device acting on the plate cylinder 53 installed.
  • An in is used to align the paper web B.
  • Transport direction arranged in front of the paper web storage 6
  • Register device 54 with a rotating frame 55, of the two guide rollers 56 spaced apart from one another and 57 for paper web B and its Position by web edge button, not shown is controlled.
  • This device 54 needs one sufficiently long inlet section E, which is rectangular must lie to the rotating frame 55, and sufficient long outlet section A; in addition, at the end of the Outfeed section A at least one further guide roller 58 required which is the direction of the paper web around changes at least 90 °.
  • the object of the present invention is to achieve Basically, a register device for aligning the Paper web in web-fed printing machines so space-saving design and arrange that exact alignment the paper web as it passes through the printing nip is guaranteed, with a possible Misalignment of the web can be corrected without An impermissibly long web section in front of the printing nip are available for this register device got to.
  • These can be conventional web printing machines trade with constant paper web transport, that do not require paper web storage; especially however, the register device according to the invention on web presses working in vocational step operation be applicable and the mentioned, in these Printing presses encountered specific difficulties avoid.
  • the guiding device be designed as a rotating frame, the inlet roller and discharge roller lie on both sides of the printing nip.
  • the arrangement preferably taken so that the two pull rollers on both sides of the pressure gap as an adjustable inlet and Exit rollers act.
  • the first shown in Figures 2 and 3 Embodiment of the invention relates to a conventional one Web press with constant paper web transport and the two printing unit cylinders forming the printing gap S. 2 and 3, and with a register device, which from a guide device for the Paper web B in the form of a rotating frame 10 and from a feed device upstream of this rotating frame, also in the form of a rotating frame 20.
  • a register device which from a guide device for the Paper web B in the form of a rotating frame 10 and from a feed device upstream of this rotating frame, also in the form of a rotating frame 20.
  • the Rotating frame 10 has a rectangular frame 11, which in the example of Figure 2 above the Printing unit cylinders 2 and 3 movable on the machine frame 1 is stored and on the inlet side one before Pressure nip S lying inlet roller 14 and at the Outlet side one behind the pressure gap S.
  • Outlet roller 15 has.
  • rollers 14 and 15 are on the Ends of support rods 12 and 13 mounted on the Bottom of the frame 11 are attached and up to the height of the pressure gap S, which is in the middle between the rollers 14 and 15.
  • the width of the rotating frame 10 is greater than the length of cylinders 2, 3.
  • the rotating frame 20 also has a rectangular frame 21 with an infeed roller 22 and an outlet roller 23 and is one Axis 24 mounted stationary in the machine frame 1 rotatably mounted, which is centered on the inlet roller 22nd is arranged and in a perpendicular to the axis of this Inlet roller 22 and thus also to the axis of Inlet roller 14 is oriented level.
  • the level of The rotating frame 20 is relative to the plane of the rotating frame 10 offset in parallel.
  • the outlet side of the rotating frame 20 and the inlet side of the rotating frame 10 are located at least approximately vertically one above the other and are through a free axis 25, which is centered on the Rollers 14 and 23 is arranged, connected to each other.
  • This axis forms a relative to the machine frame 1 displaceable common pivot axis 25 for both rotating frames and is perpendicular to that through the Axis of the rollers 14 and 15 going plane.
  • the paper web B runs in the direction of the arrows via a guide roller 26 to the inlet roller 22 of the Turning frame 20, then this over the outlet roller 23 Rotating frame, which the paper web by 90 ° in the direction redirected to the inlet roller 14 of the rotating frame 10 where it is redirected by 90 °. Between the Inlet roller 14 and the outlet roller 15 of the rotating frame 10, the paper web B passes through the printing nip S and becomes then continue via a further guide roller 27 transported.
  • web edge finder 16 and 17 are provided, which are close in the example considered in front of the inlet roller 14 or close behind the outlet roller 15, along the perpendicular to the plane of the Rotating frame 10 extending track sections, arranged are and the side orientation or one Check possible skewing of the web.
  • web edge sensors are known, non-contact sensors, in particular optical or pneumatic sensors. The measurement signals these web edge keys 16 and 17 control two Actuators 18 and 19.
  • the first actuator 18 can the pivot axis 25, that is to say that means it connected rollers 14 and 23, transverse to the direction of the Paper web B and the second actuator 19, independently from the actuator 18, the outlet side 15 of the rotating frame 10 with the outlet roller 15 also transversely to Direction of web travel in one direction or the other adjust.
  • the actuators 18 and 19 are of this type articulated with those carrying the relevant rolls Frame parts connected that these rollers in the direction their axes, if necessary with simultaneous Pivoting, can be adjusted, that is in a plane passing through the roller axes are.
  • the web edge sensors have 16 and 17 different deviations of the path reported from the middle course, so that a Skew correction is required.
  • FIGS. 7 to 11 shows the same printing machine as Figure 1 with a by plate rollers 50 inked plate cylinder 2 and a pressure cylinder 3, both cylinders three pressure zones 2a separated by cylinder pits 2b and 3b or 3a.
  • a pull roller 4 and an upstream paper web storage 6, behind the pressure nip a draw roller 5 and a downstream Paper web storage 7 installed.
  • the pull rollers are controlled suction rolls on which the paper web passes Negative pressure is maintained.
  • the pull roller 4 in front of the nip S forms the Inlet roller and the pull roller 5 behind the nip S the outlet roller of a guide device, the rotating frame 10 corresponds to the figures 2 to 6.
  • Both Pull rollers 4 and 5 are in a common frame stored, which consists of a frame part 30 for the pull roller 4, a frame part 31 for the pull roller 5 and one Connection frame 32 is made by means of point fixings attached to the frame parts 30 and 31 is.
  • the width of the frame is so much larger than the length of the printing cylinder 2 and 3 that this Cylinder in the plan view of Figure 10 within the Frame.
  • connection frame 32 which is preferably around a lightweight frame made of tubular steel or Carbon fiber composite material takes the paper tensile forces and the lateral forces between the pull rollers on.
  • the frame with the pull rollers 4 and 5 is in one by the axes of the Pull rollers 4 and 5 moving level mounted movably.
  • the frame parts 30 and 31 on both sides with elbows 35, 36 and 37, 38 provided whose parallel to the axis of the drawing rollers oriented legs all lie in one plane and on both sides with the help of ball guides 39 in Machine frame 1 are movably mounted.
  • That of the free pivot axis 25 in the example 2 to 6 corresponding axis of the Guide device is by a cam roller 40th formed according to Figures 10 and 11 in the middle of the frame part 30 of the pull roller 4, that is to say in the center this pull roller, stored and its axis perpendicular to the plane passing through the axes of the pull rollers is oriented.
  • This cam roller 40 is in a groove 41 guided, which is parallel to the axis of the pull roller 4th runs and in a fastened to the machine frame 1 Guide segment 65 is provided. Through this guidance can the free formed by the cam roller 40 Pivot axis of the frame 30, 31, 32 only parallel to Pull roller axis are moved.
  • each of the frame parts 30 and 31 individual, articulated actuator 42 or 43 which each end of the frame, i.e. each of the two Pull rollers 4 and 5, adjust in the axial direction can, depending on the measurement signals of the installed in front of and behind the pressure gap Web edge buttons 16 and 17, which are immediately behind here the first pull roller 4 or in front of the second pull roller 5 lie.
  • Feed device 20 is in the example according to the Figures 7 to 11 formed by the paper web storage 6, the on its inlet side by one along the inlet Section of the paper web B extending stationary axis 46 is tiltably mounted on the machine frame 1.
  • this tilt axis 46 lies in one perpendicular to the axis of the feed roller of the guide device, So oriented to the axis of the pull roller 4 Plane which this axis is at least approximately in the middle cuts.
  • the paper web storage 6 and the frame part 30, in which the pull roller 4 is mounted are by a Articulated tie rod 47 mechanically with each other connected.
  • This tie rod 47 is on the tilt axis 46 of the paper web storage 6 opposite side, at which the paper web runs out, articulated; the the other end of the tie rod 47 is at the position shown in FIG. 11 left side of the frame part 30 of the pull roller 4 articulated.
  • the Swivel axis 25 the function of the mechanical Connection between feeding and guiding device.
  • the paper web B passes through an infeed roller 48 in the paper web storage 6, which is is a vacuum accumulator.
  • the outfeed roller this paper web storage is identical to that Draw roller 4, that is, the inlet roller of the guide device.
  • the arrangement described ensures that when adjusting the frame part 30 with the Pull roller 4 of the paper web storage 6 through the Tie rod 47 with appropriate rotation around Tilt axis 46 is taken along in such a way that the direction of the pull roller 4 in the guide device incoming paper web is changed accordingly, like that in principle Figures 4 to 6 for the Show embodiment with two coupled rotating frames.
  • the embodiment of Figure 12 shows a Guide device in which the inlet and the Outfeed rolls also by pull rolls 4 and 5 are formed on both sides of the pressure gap in the vocational step printing plant in Frame parts 30 and 31 are stored, of which the Frame part 30 is formed and guided exactly as in the example according to Figures 2 to 6. Both frame parts 30, 31 are in turn by means of ball guides 39 in the displaceable through the plane of the drawing roller axes stored in rack 1. In the example of Figure 12 are however, these frame parts 30 and 31 independently from each other and not through a connecting frame connected with each other.
  • each frame part 30 and 31 is subject the effect of a second actuator 62 or. 63, which is a displacement perpendicular to the draw roller axis can perform and therefore for the exact angular position the pull rollers 4 or 5 provides, again as Function of the measurement signals of the web edge finder.
  • a second actuator 62 or. 63 which is a displacement perpendicular to the draw roller axis can perform and therefore for the exact angular position the pull rollers 4 or 5 provides, again as Function of the measurement signals of the web edge finder.
  • Figures 13 and 14 show another Embodiment of a guide device in which the Pull rollers 4 and 5 on both sides of the nip Form inlet and outlet rollers and, as in the example according to Figure 12, in mutually independent frame parts 30 and 31 are mounted, which by means of ball guides 39 again in the plane passing through the roller axes are movable.
  • the frame part 30 with the pull roller 4 is, as in Example according to FIGS. 11 and 12, in frame 1 guided by means of a centrally located cam roller 40, in a groove parallel to the axis of the cylinder 3 41 of a guide segment 65 fastened in frame 1 is adjustable.
  • the other frame part 31 is by two Cam rollers 66 and 67 guided in the machine frame 1, with the two cam rollers as far outside as possible the center of the draw roller 5 between the paper web edge and Inner edge of the machine frame are arranged.
  • This Cam rollers the axes of which are in turn perpendicular to the lying through the plane of the roller axes run in Grooves 70 and 71 of guide segments 68 and 69 that individually inclined to the axis of rotation of the pull rollers in such a way can be set that for the frame part 31 a fictitious pivot point is generated with the pull roller 5, which coincides with the pivot point of the cam roller 40.
  • this is by the two dash-dotted lines Lines illustrate which of the cam rollers 66 and 67 go out and at the pivot point of the cam roller Cut 40.
  • Both frame parts 30 and 31 are together connected by a push rod 74 which is outside the Machine frame 1 which is fixed to the frame parts 30 and 31 flanged motors 72 and 73 connects.
  • Each Pull roller 4 and 5 requires in this embodiment, as in the example according to FIGS. 7 to 11, only one each Actuators 42 and 43. Due to the arrangement of the Guides in the grooves 41, 70 and 71 can the pull roller 4, guided through the groove 41, parallel to the cylinder 3 be moved. The degree of freedom then remains the rotation around the axis of the cam roller 40. This Rotation is by the aforementioned push rod 74 controlled. When the pull roller 5 is moved the guide grooves 70 and 71 describes this approximately a circular arc around the cam roller 40. By the Push rod 74, the pull roller 4 is also around Cam roller 40 rotated and always at least approximately held parallel to the pull roller 5.
  • Figures 14 and 15 show for this example a further embodiment of the upstream Feed device in the form of a rotating frame 75, the has the inlet roller 78 and the outlet roller 79 and in the center of its input side with the axis of rotation 77 in Frame 1 stored and articulated by means of a Push rod 76 with the frame part 30 of the pull roller 4th connected is.
  • it is Paper storage 6 firmly anchored in the machine frame 1 and lies within the transport path of the paper web between that forming the feeder Rotating frame 75 and the web guiding device, which in essentially through the two frame parts 30 and 31 is formed.
  • This arrangement results in a larger one Correction length K ( Figure 15) as it is through use of the web storage 6 as a feed device in Example according to Figures 7 to 11 is possible.
  • the upstream rotating frame 75 corresponds to essentially the rotating frame 20 in the example according to the FIGS. 2 to 6, the inlet and outlet rollers 78, 79 the inlet and outlet rollers 22 and 23 and the Axis of rotation 77 correspond to the axis of rotation 24.
  • the device according to the invention a paper web, which as a result of Inhomogeneity in the paper obliquely across the web width the paper web storage runs out or at an angle Inlet roller of the guide device reached, or the swinging changes direction by appropriate Control and deflection of the inlet and outlet rollers align exactly to the pressure gap so that a exact page register and diagonal register maintained will.
  • the pull rollers can also be ordinary, with a Pressure roller interacting pull rollers, i.e. part a usual draw roller group, and the paper web storage can be of any type.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Inking, Control Or Cleaning Of Printing Machines (AREA)
  • Rotary Presses (AREA)
  • Replacement Of Web Rolls (AREA)

Description

Die Erfindung bezieht sich auf eine Rotations-Rollendruckmaschine mit zwei den Druckspalt bildenden Zylindern, zwischen denen die Papierbahn unter Bedruckung wenigstens einer Seite hindurchläuft, und mit einer Registervorrichtung zum Ausrichten der Bahn, wobei diese Vorrichtung Einlauf- und Auslaufwalzen aufweist, welche die Bahn führen und deren Stellung durch Messignale von Bahnkantentastern mittels einer Stelleinrichtung steuerbar ist.The invention relates to a rotary web printing machine with two forming the pressure gap Cylinders, between which the paper web under Printing runs through at least one side, and with a register device for aligning the web, this device inlet and outlet rollers has, which guide the web and their position by measuring signals from web edge sensors using a Actuator is controllable.

In der EP-A-0 415 881 wird eine Rollendruckmaschine mit mehreren Druckwerken beschrieben, in denen die Papierbahn mittels Zugwalzen angetrieben und geführt wird, welche beiderseits des Druckspalts jedes Druckwerks installiert sind. Vor den Zugwalzen, die vor dem Druckspalt jedes Druckwerks liegen, sind jeweils ein Papierbahnspeicher und eine davor angeordnete Registervorrichtung zum seitlichen Ausrichten der Papierbahn installiert, und den hinter jedem Druckspalt liegenden Zugwalzen ist je ein Papierbahnspeicher nachgeschaltet.EP-A-0 415 881 describes a web printing machine described with several printing units in which the paper web is driven by means of pull rollers and is performed, which on both sides of the pressure gap each Printing unit are installed. In front of the pull rollers, the one in front the printing gap of each printing unit are each a paper web storage and one arranged in front Register device for lateral alignment of the Paper web installed, and that behind each printing nip a paper web storage is arranged downstream each of the lying drawing rollers.

Es ist bekannt, dass die Vorrichtungen zum seitlichen Ausrichten der Papierbahn einen Drehrahmen aufweisen, auf welchem die Papierbahn durch an den Rahmenenden gelagerter Einlauf- und Auslaufwalzen geführt wird und dessen Stellung durch Messignale von Bahnkantentastern zwecks Korrektur der Lage der Papierbahn steuerbar ist. Die Anordnung dieser Vorrichtungen in der bekannten Rollendruckmaschine nach der EP-A-0 415 881 erfordert einen erheblichen Raumbedarf im Transportsystem der Papierbahn, bevor diese den ersten Papierbahnspeicher durchläuft. Ausserdem können eventuelle, beim Passieren des Papierbahnspeichers und der Zugwalze auftretende Abweichungen von der korrekten Papierbahnlage nicht mehr ausgeglichen werden.It is known that the devices for lateral alignment of the paper web a rotating frame have, on which the paper web through to the Inlet and outlet rollers with frame ends is guided and its position by measurement signals from Web edge buttons for the purpose of correcting the position of the Paper web is controllable. The arrangement of these devices in the well-known web press after EP-A-0 415 881 requires a considerable amount of space in the transport system of the paper web, before this the runs through the first paper web storage. You can also possible when passing the paper web storage and deviations from the correct one Paper web position can no longer be compensated.

Bei der in der erwähnten Druckschrift beschriebenen Rollendruckmaschine sind die Druckwerke nach Art von Bogendruckwerken ausgebildet, bei denen die den Druckspalt bildenden Zylinder durch Zylindergruben getrennte Druckzonen haben. Um zu vermeiden, dass beim Durchlaufen der Zylindergruben auf der Papierbahn unbedruckte weisse Streifen entstehen, wie sie bei einem kontinuierlichen Papierbahntransport auftreten würden, ist die bekannte Rollendruckmaschine für einen sogenannten Pilgerschrittbetrieb eingerichtet. Das heisst, die Papierbahn wird nur vor und hinter jedem Druckwerk sowie während eines Druckvorgangs, bei Anlage an den Druckzonen beider Zylinder, mit kontinuierlicher Geschwindigkeit transportiert, dagegen beim Passieren einer Zylindergrube, also im freien, nicht eingeklemmten Zustand, durch die Zugwalzen abgebremst, zurückgezogen und wieder beschleunigt, sodass beim Passieren der folgenden Druckzone die Papierbahn wieder synchron mit den Zylindern läuft. Dadurch lassen sich nicht nur, zwecks Einsparung von Papier, die Druckbilder im vorgegebenen engen Abstand auf die Papierbahn drucken, sondern es können auch Druckbilder variabler Länge erzeugt, individuelle Registerkorrekturen für jeden einzelnen Druck ausgeführt und die Wiederhollänge der einzelnen Drucke auf der Papierbahn unabhängig von der Länge der Druckbilder variiert werden. Dabei dienen die Papierbahnspeicher zwischen den kontinuierlich bewegten Papierbahnabschnitten vor und hinter dem Druckwerk und dem im Pilgerschritt bewegten Papierbahnabschnitt im Druckwerk als Puffer. Sie sind wegen der sehr hohen Dynamik, mit der die Papierbahn zurückgezogen und wieder beschleunigt werden muss, als Unterdruckspeicher ausgebildet, welche keine zu beschleunigenden Leitwalzen aus Metall aufweisen, jedoch keine seitliche Führung der Bahn garantieren. Es kann daher bei bestimmten Papierqualitäten, wenn das Papier über die Bahnbreite nicht homogen ist, eine seitliche Pendelbewegung der Bahn auftreten, die für das erforderliche Seitenregister, insbesondere bei Banknotendrucken, unzulässig ist. Ausserdem kann die Papierbahn infolge einer Inhomogenität dazu neigen, schräg durch das Druckwerk zu laufen, was entsprechend schräge Drucke auf der Bahn zur Folge hätte.In the described in the mentioned publication Web presses are the printing units trained in the manner of sheet-fed printing units, in which the cylinders forming the pressure gap through cylinder pits have separate pressure zones. In order to avoid, that when going through the cylinder pits on the White unprinted strips of paper are created, such as with a continuous paper web transport would occur is the well-known web press set up for a so-called pilgrim step operation. That means the paper web is only in front of and behind each printing unit as well as during one Printing process, when applied to the pressure zones of both Cylinder, with continuous speed transported, on the other hand when passing a cylinder pit, so in the free, not pinched state, slowed down, pulled back by the pull rollers accelerated again so that when passing the following printing zone, the paper web is synchronized again the cylinders are running. This means not only in order to save paper, the printed images in the print the specified narrow distance on the paper web, but it can also print images of variable length generated individual register corrections for everyone single print run and the repeat length of the individual prints on the paper web regardless of the Length of the printed images can be varied. The serve Paper web storage between the continuously moving Paper web sections in front of and behind the printing unit and the paper web section moved in the pilgrim step Printing unit as a buffer. They are because of the very high Dynamics with which the paper web is retracted and must be accelerated again, as a vacuum accumulator trained, which none to be accelerated Guide rollers made of metal, but no lateral Guarantee guidance of the train. It can therefore certain paper qualities when the paper is over the Web width is not homogeneous, a lateral Pendulum motion of the orbit occurs for that required page registers, especially at Printing banknotes is not permitted. In addition, the Paper web due to inhomogeneity tend to to run diagonally through the printing unit, which accordingly oblique prints on the web would result.

Ein korrektes Ausrichten der Papierbahn spielt daher bei im Pilgerschrittbetrieb arbeitenden Rollendruckmaschine mit Bogendruckwerken eine besonders wichtige Rolle und lässt sich mit den bisher bekannten Registervorrichtungen zum Ausrichten nicht zuverlässig durchführen, wie anhand der Figur 1 kurz erläutert werden soll, die den bekannten Stand der Technik veranschaulicht.Correct alignment of the paper web plays therefore in the case of web-fed printing press working in pilgrim step operation a special one with sheet-fed printing units important role and can be with the previously known Register devices for alignment not reliable perform, as briefly explained with reference to Figure 1 should be the known state of the art illustrated.

Figur 1 zeigt schematisch eine Rollendruckmaschine, in welcher die Papierbahn B ein Stichtiefdruckwerk durchläuft, welches nach Art eines Bogendruckwerks mit einem Plattenzylinder 2 und mit einem Druckzylinder 3 ausgebildet ist. Diese beiden im Maschinengestell 1 gelagerten Zylinder 2 und 3 bilden den Druckspalt S, den die Papierbahn B durchläuft, und weisen durch Zylindergruben 2b bzw. 3b getrennte Drucksättel 2a bzw. 3a auf, welche die Druckzonen bilden und im Falle des Plattenzylinders 2 die Stichtiefdruckplatten, im Falle des Druckzylinders die Druckbezüge tragen. Im betrachteten Falle haben diese Zylinder je drei Druckzonen. In den Zylindergruben 2b bzw. 3b sind wie üblich die Spannelemente für die Druckplatten bzw. die Druckbezüge untergebracht. FIG. 1 schematically shows a web printing machine, in which the paper web B is an intaglio printing unit passes through, which is in the manner of a sheet-fed printing unit with a plate cylinder 2 and with a Printing cylinder 3 is formed. These two in Form machine frame 1 mounted cylinders 2 and 3 the printing nip S through which the paper web B passes, and have separated by cylinder pits 2b and 3b Pressure calipers 2a and 3a on the pressure zones form and in the case of the plate cylinder 2 Intaglio printing plates, in the case of the printing cylinder Wear print covers. In the case under consideration they have Cylinders with three pressure zones each. In the cylinder pits 2b or 3b are, as usual, the clamping elements for the Printing plates or the printing covers housed.

Vor und hinter dem Druckspalt S sind Zugwalzen 4 bzw. 5 installiert, die möglichst nahe am Druckspalt liegen sollten und welche so gesteuert werden, dass der Bahnabschnitt zwischen diesen Zugwalzen im vorstehend erwähnten Pilgerschritt transportiert wird. Während einer Druckphase drehen sich diese Zugwalzen 4, 5 und die Zylinder 2, 3 mit gleicher Umfangsgeschwindigkeit. Bei den Zugwalzen 4 und 5 handelt es sich um bekannte Saugwalzen, welche den sie umschlingenden Abschnitt der Papierbahn durch Unterdruck festhalten, sodass keine Anpresswalzen benötigt werden. Vor der Zugwalze 4 und hinter der Zugwalze 5 ist je ein Papierbahnspeicher 6 bzw. 7 in Form eines bekannten Unterdruckspeichers installiert.Pull rollers 4 are located in front of and behind the pressure nip S. or 5 installed as close as possible to the pressure gap should lie and which are controlled so that the Web section between these pull rollers in the above mentioned pilgrimage is transported. While During a printing phase, these pull rollers 4, 5 and the cylinders 2, 3 with the same peripheral speed. The pull rollers 4 and 5 are known Suction rolls, which the looping section of the Hold the paper web under vacuum so that none Pressure rollers are required. In front of the pull roller 4 and behind the draw roller 5 is a paper web storage 6 or 7 in the form of a known vacuum accumulator Installed.

Vor dem Druckspalt S ist eine vom Papier teilweise umschlungene Messwalze 59 zur Messung der Zugspannung der Bahn vorgesehen.In front of the nip S is one of the paper partially wrapped measuring roller 59 for measuring the Tension of the web is provided.

Im betrachteten Beispiel wird der Plattenzylinder 2 durch drei Schablonenwalzen 50 mit verschiedenen Farben eingefärbt, welche ihrerseits durch Farbwerke 51 eingefärbt werden, die auf einem abfahrbaren Farbwerkgestell 52 installiert sind. Die Drehrichtungen der Zylinder und die Transportrichtung der Papierbahn B sind durch Pfeile angedeutet. Hinter den Schablonenwalzen ist eine auf den Plattenzylinder wirkende Wischvorrichtung 53 installiert.In the example considered, the plate cylinder 2 by three stencil rollers 50 with different Colors colored, which in turn by inking units 51 be colored on a removable inking unit frame 52 are installed. The directions of rotation of the Cylinder and the direction of transport of the paper web B are indicated by arrows. Behind the stencil rollers is a wiper device acting on the plate cylinder 53 installed.

Zum Ausrichten der Papierbahn B dient eine in Transportrichtung vor dem Papierbahnspeicher 6 angeordnete Registervorrichtung 54 mit einem Drehrahmen 55, der zwei im Abstand voneinanderliegende Leitwalzen 56 und 57 für die Papierbahn B aufweist und dessen Stellung durch nicht gezeigte Bahnkantentaster gesteuert wird. Diese Vorrichtung 54 benötigt eine ausreichend lange Einlaufstrecke E, die rechtwinklig zum Drehrahmen 55 liegen muss, und eine ausreichend lange Auslaufstrecke A; ausserdem ist am Ende der Auslaufstrecke A wenigstens eine weitere Leitwalze 58 erforderlich, welche die Richtung der Papierbahn um wenigstens 90° ändert.An in is used to align the paper web B. Transport direction arranged in front of the paper web storage 6 Register device 54 with a rotating frame 55, of the two guide rollers 56 spaced apart from one another and 57 for paper web B and its Position by web edge button, not shown is controlled. This device 54 needs one sufficiently long inlet section E, which is rectangular must lie to the rotating frame 55, and sufficient long outlet section A; in addition, at the end of the Outfeed section A at least one further guide roller 58 required which is the direction of the paper web around changes at least 90 °.

Um nun eine korrekte Ausrichtung der Papierbahn beim Durchlaufen des Druckspalts zu gewährleisten, müsste die Vorrichtung 54 oder eine ähnliche zwischen der ersten Zugwalze 4 und dem Druckspalt S eingebaut werden, was jedoch praktisch nicht möglich ist. Einerseits würde der Bahnabschnitt zwischen der Zugwalze 4 und dem Druckspalt S unzulässig lang, und zum andern könnten die Leitwalzen bei den sehr dynamischen Beschleunigungsvorgängen im Pilgerschritt durch die Papierbahn nicht schlupffrei beschleunigt werden, was zur Folge hätte, dass die seitliche Führung der Bahn verloren ginge.To ensure correct alignment of the paper web to ensure when passing through the pressure gap, would have to be device 54 or a similar between the first pull roller 4 and the nip S installed become, but this is practically not possible. On the one hand, the section of track between the Pull roller 4 and the pressure gap S impermissibly long, and on the other hand, the guide rollers in the very dynamic acceleration processes in the pilgrimage step not accelerated by the paper web without slip become, which would result in the lateral guidance the train would be lost.

Der vorliegenden Erfindung liegt die Aufgabe zu Grunde, eine Registervorrichtung zum Ausrichten der Papierbahn in Rollendruckmaschinen raumsparend so zu gestalten und anzuordnen, dass eine exakte Ausrichtung der Papierbahn beim Durchlaufen des Druckspalts gewährleistet ist, wobei auch ein eventueller Schräglauf der Bahn korrigiert werden kann, ohne dass vor dem Druckspalt ein unzulässig langer Bahnabschnitt für diese Registervorrichtung zur Verfügung stehen muss. Es kann sich dabei um übliche Rollendruckmaschinen mit konstantem Papierbahntransport handeln, die keinen Papierbahnspeicher benötigen; insbesondere jedoch soll die Registervorrichtung nach der Erfindung auf im Pilgerschrittbetrieb arbeitende Rollendruckmaschinen anwendbar sein und die erwähnten, bei diesen Druckmaschinen auftretenden spezifischen Schwierigkeiten vermeiden. The object of the present invention is to achieve Basically, a register device for aligning the Paper web in web-fed printing machines so space-saving design and arrange that exact alignment the paper web as it passes through the printing nip is guaranteed, with a possible Misalignment of the web can be corrected without An impermissibly long web section in front of the printing nip are available for this register device got to. These can be conventional web printing machines trade with constant paper web transport, that do not require paper web storage; especially however, the register device according to the invention on web presses working in pilgrim step operation be applicable and the mentioned, in these Printing presses encountered specific difficulties avoid.

Diese Aufgabe wird durch die im kennzeichnenden Teil des Anspruchs 1 angegebenen Merkmale gelöst.This task is characterized by the in the Part of claim 1 specified features solved.

Auf diese Weise wird der unmittelbar beiderseits des Druckspalts zur Verfügung stehende Raum zur Unterbringung der Leitvorrichtung ausgenutzt, welche direkt die Lage der Papierbahn im Druckspalt zu korrigieren erlaubt.In this way it is immediately on both sides of the pressure gap available space for Accommodation of the guide device used, which correct the position of the paper web in the printing nip directly allowed.

Gemäss einem Beispiel kann die Leitvorrichtung als Drehrahmen ausgebildet sein, dessen Einlaufwalze und Auslaufwalze beiderseits des Druckspalts liegen. Bei Anwendung auf eine im Pilgerschrittbetrieb arbeitende Rollendruckmaschine ist die Anordnung vorzugsweise so getroffen, dass die beiden Zugwalzen beiderseits des Druckspalts als verstellbare Einlauf-und Auslaufwalzen fungieren.According to one example, the guiding device be designed as a rotating frame, the inlet roller and discharge roller lie on both sides of the printing nip. When used on a pilgrim step working web press is the arrangement preferably taken so that the two pull rollers on both sides of the pressure gap as an adjustable inlet and Exit rollers act.

Weitere Merkmale der Erfindung ergeben sich aus den abhängigen Ansprüchen.Further features of the invention result from the dependent claims.

Die Erfindung wird anhand der Zeichnungen an mehreren Ausführungsbeispielen näher erläutert. Es zeigen:

  • Figur 1 ein bekanntes Stichtiefdruckwerk mit einer Registervorrichtung zum Ausrichten der Papierbahn, zur Veranschaulichung des bereits beschriebenen bekannten Standes der Technik,
  • Figur 2 eine schematische Seitenansicht einer ersten Ausführungsform der Erfindung mit zwei mechanisch gekuppelten Drehrahmen,
  • Figur 3 eine Draufsicht auf die Darstellung nach Figur 2,
  • Figuren 4, 5 und 6 der Darstellung nach Figur 3 entsprechende Draufsichten auf drei verschiedene Einstellungen der beiden Drehrahmen,
  • Figur 7 eine schematische Seitenansicht einer zweiten Ausführungsform der Erfindung, wobei das Druckwerk mit den Zugwalzen und Papierbahnspeichern dem in Figur 1 dargestellten Druckwerk entspricht,
  • Figur 8 eine vergrösserte Darstellung des Papierbahntransports vor dem Druckspalt des Druckwerks nach Figur 7, mit Papierbahnspeicher und Zugwalze,
  • Figur 9 eine vergrösserte Darstellung des Papierbahntransports hinter dem Druckspalt, mit Zugwalze und Papierbahnspeicher,
  • Figur 10 eine Draufsicht auf das Druckwerk nach Figur 7 mit den beiden, beiderseits der Druckwerkzylinder installierten Zugwalzen,
  • Figur 11 eine Ansicht der vor dem Druckspalt befindlichen Zugwalze und des zugeordneten Papierbahnspeichers,
  • Figur 12 eine der Ansicht nach Figur 10 entsprechende Draufsicht auf eine dritte Ausführungsform der Erfindung,
  • Figur 13 eine der Ansicht nach Figur 10 entsprechende vierte Ausführungsform der Erfindung,
  • Figur 14 einen Schnitt längs XIV-XIV nach Figur 13 und
  • Figur 15 eine Seitenansicht der Vorrichtung nach Figur 13 mit einem Drehrahmen als Zuführungsvorrichtung.
  • The invention is explained in more detail with reference to the drawings in several exemplary embodiments. Show it:
  • 1 shows a known intaglio printing unit with a register device for aligning the paper web, to illustrate the known prior art already described,
  • FIG. 2 shows a schematic side view of a first embodiment of the invention with two mechanically coupled rotating frames,
  • FIG. 3 shows a top view of the illustration according to FIG. 2,
  • FIGS. 4, 5 and 6 are plan views corresponding to the representation according to FIG. 3 on three different settings of the two rotating frames,
  • FIG. 7 shows a schematic side view of a second embodiment of the invention, the printing unit with the drawing rollers and paper web stores corresponding to the printing unit shown in FIG. 1,
  • FIG. 8 shows an enlarged illustration of the paper web transport in front of the printing nip of the printing unit according to FIG. 7, with paper web storage and pulling roller,
  • FIG. 9 shows an enlarged illustration of the paper web transport behind the printing nip, with a pull roller and paper web storage,
  • FIG. 10 is a top view of the printing unit according to FIG. 7 with the two drawing rollers installed on both sides of the printing unit cylinders,
  • FIG. 11 is a view of the pull roller in front of the printing nip and the associated paper web storage,
  • FIG. 12 shows a plan view corresponding to the view according to FIG. 10, of a third embodiment of the invention,
  • FIG. 13 shows a fourth embodiment of the invention corresponding to the view according to FIG. 10,
  • Figure 14 is a section along XIV-XIV of Figure 13 and
  • Figure 15 is a side view of the device of Figure 13 with a rotating frame as a feed device.
  • Die in den Figuren 2 und 3 dargestellte erste Ausführungsform der Erfindung betrifft eine übliche Rollendruckmaschine mit konstantem Papierbahntransport und den beiden den Druckspalt S bildenden Druckwerkzylindern 2 und 3, sowie mit einer Registervorrichtung, die aus einer Leitvorrichtung für die Papierbahn B in Form eines Drehrahmens 10 und aus einer diesem Drehrahmen vorgeschaltete Zuführungsvorrichtung, ebenfalls in Form eines Drehrahmens 20, besteht. Der Drehrahmen 10 weist ein rechteckförmiges Rahmengestell 11 auf, welches im Beispiel nach Figur 2 oberhalb der Druckwerkzylinder 2 und 3 beweglich am Maschinengestell 1 gelagert ist und an der Einlaufseite eine vor dem Druckspalt S liegende Einlaufwalze 14 und an der Auslaufseite eine hinter dem Druckspalt S liegende Auslaufwalze 15 hat. Diese Walzen 14 und 15 sind an den Enden von Tragstangen 12 und 13 gelagert, die an der Unterseite des Rahmengestells 11 befestigt sind und bis zur Höhe des Druckspalts S reichen, der mittig zwischen den Walzen 14 und 15 liegt. Die Breite des Drehrahmens 10 ist grösser als die Länge der Zylinder 2, 3.The first shown in Figures 2 and 3 Embodiment of the invention relates to a conventional one Web press with constant paper web transport and the two printing unit cylinders forming the printing gap S. 2 and 3, and with a register device, which from a guide device for the Paper web B in the form of a rotating frame 10 and from a feed device upstream of this rotating frame, also in the form of a rotating frame 20. Of the Rotating frame 10 has a rectangular frame 11, which in the example of Figure 2 above the Printing unit cylinders 2 and 3 movable on the machine frame 1 is stored and on the inlet side one before Pressure nip S lying inlet roller 14 and at the Outlet side one behind the pressure gap S. Outlet roller 15 has. These rollers 14 and 15 are on the Ends of support rods 12 and 13 mounted on the Bottom of the frame 11 are attached and up to the height of the pressure gap S, which is in the middle between the rollers 14 and 15. The width of the rotating frame 10 is greater than the length of cylinders 2, 3.

    Der Drehrahmen 20 hat ebenfalls ein rechteckförmiges Rahmengestell 21 mit einer Einlaufwalze 22 und einer Auslaufwalze 23 und ist um eine ortsfest im Maschinegestell 1 gelagerte Achse 24 drehbar montiert, welche mittig zur Einlaufwalze 22 angeordnet ist und in einer senkrecht zur Achse dieser Einlaufwalze 22 und damit auch zur Achse der Einlaufwalze 14 orientierten Ebene liegt. Die Ebene des Drehrahmens 20 ist relativ zur Ebene des Drehrahmens 10 parallel versetzt. Die Auslaufseite des Drehrahmens 20 und die Einlaufseite des Drehrahmens 10 liegen wenigstens näherungsweise senkrecht übereinander und sind durch eine freie Achse 25, die mittig zu den Walzen 14 und 23 angeordnet ist, miteinander verbunden.The rotating frame 20 also has a rectangular frame 21 with an infeed roller 22 and an outlet roller 23 and is one Axis 24 mounted stationary in the machine frame 1 rotatably mounted, which is centered on the inlet roller 22nd is arranged and in a perpendicular to the axis of this Inlet roller 22 and thus also to the axis of Inlet roller 14 is oriented level. The level of The rotating frame 20 is relative to the plane of the rotating frame 10 offset in parallel. The outlet side of the rotating frame 20 and the inlet side of the rotating frame 10 are located at least approximately vertically one above the other and are through a free axis 25, which is centered on the Rollers 14 and 23 is arranged, connected to each other.

    Diese Achse bildet eine relativ zum Maschinengestell 1 verschiebbare gemeinsame Schwenkachse 25 für beide Drehrahmen und liegt senkrecht zu der durch die Achse der Walzen 14 und 15 gehenden Ebene.This axis forms a relative to the machine frame 1 displaceable common pivot axis 25 for both rotating frames and is perpendicular to that through the Axis of the rollers 14 and 15 going plane.

    Die Papierbahn B verläuft im Sinne der Pfeile über eine Führungswalze 26 zur Einlaufwalze 22 des Drehrahmens 20, dann über die Auslaufwalze 23 dieses Drehrahmens, welche die Papierbahn um 90° in Richtung auf die Einlaufwalze 14 des Drehrahmens 10 umlenkt, wo sie nochmals um 90° umgelenkt wird. Zwischen der Einlaufwalze 14 und der Auslaufwalze 15 des Drehrahmens 10 passiert die Papierbahn B den Druckspalt S und wird anschliessend über eine weitere Führungswalze 27 weiter transportiert.The paper web B runs in the direction of the arrows via a guide roller 26 to the inlet roller 22 of the Turning frame 20, then this over the outlet roller 23 Rotating frame, which the paper web by 90 ° in the direction redirected to the inlet roller 14 of the rotating frame 10 where it is redirected by 90 °. Between the Inlet roller 14 and the outlet roller 15 of the rotating frame 10, the paper web B passes through the printing nip S and becomes then continue via a further guide roller 27 transported.

    Vor und hinter dem Druckspalt S sind, wie schematisch in Figur 2 angedeutet, Bahnkantentaster 16 und 17 vorgesehen, welche im betrachteten Beispiel nahe vor der Einlaufwalze 14 bzw. nahe hinter der Auslaufwalze 15, längs der senkrecht zur Ebene des Drehrahmens 10 verlaufenden Bahnabschnitten, angeordnet sind und die seitliche Ausrichtung oder einen eventuellen Schräglauf der Bahn kontrollieren. Bei diesen Bahnkantentastern handelt es sich um bekannte, berührungslos arbeitende Sensoren, insbesondere optische oder pneumatische Sensoren. Die Messignale dieser Bahnkantentaster 16 und 17 steuern zwei Stellglieder 18 und 19. Das erste Stellglied 18 kann die Schwenkachse 25, das heisst also die damit verbundenen Walzen 14 und 23, quer zur Laufrichtung der Papierbahn B und das zweite Stellglied 19, unabhängig vom Stellglied 18, die Auslaufseite 15 des Drehrahmens 10 mit der Auslaufwalze 15 ebenfalls quer zur Bahnlaufrichtung in der einen oder anderen Richtung verstellen. Die Stellglieder 18 und 19 sind derart gelenkig mit den die betreffenden Walzen tragenden Rahmenteilen verbunden, dass diese Walzen in Richtung ihrer Achsen, gegebenenfalls unter gleichzeitiger Verschwenkung, verstellt werden können, das heisst in einer durch die Walzenachsen gehenden Ebene verschiebbar sind. Durch diese individuelle Verstellung der erwähnten Walzen als Funktion der Messignale der Bahnkantentaster 16 und 17 lassen sich sowohl reine Seitenkorrekturen durch eine Parallelverschiebung der Papierbahn als auch Korrekturen eines Schräglaufs der Papierbahn vornehmen, wie nachstehend anhand der Figuren 4 bis 6 veranschaulicht wird.Before and after the pressure gap S are how schematically indicated in Figure 2, web edge finder 16 and 17 are provided, which are close in the example considered in front of the inlet roller 14 or close behind the outlet roller 15, along the perpendicular to the plane of the Rotating frame 10 extending track sections, arranged are and the side orientation or one Check possible skewing of the web. At these web edge sensors are known, non-contact sensors, in particular optical or pneumatic sensors. The measurement signals these web edge keys 16 and 17 control two Actuators 18 and 19. The first actuator 18 can the pivot axis 25, that is to say that means it connected rollers 14 and 23, transverse to the direction of the Paper web B and the second actuator 19, independently from the actuator 18, the outlet side 15 of the rotating frame 10 with the outlet roller 15 also transversely to Direction of web travel in one direction or the other adjust. The actuators 18 and 19 are of this type articulated with those carrying the relevant rolls Frame parts connected that these rollers in the direction their axes, if necessary with simultaneous Pivoting, can be adjusted, that is in a plane passing through the roller axes are. Through this individual adjustment of the mentioned rolls as a function of the measurement signals of the Web edge sensors 16 and 17 can be both pure Side corrections by a parallel shift of the Paper web as well as corrections of skewing Make the paper web as shown below using the Figures 4 to 6 is illustrated.

    Im Beispiel nach Figur 4 findet eine seitliche Korrektur der Papierbahn B statt, indem beide Stellglieder 18 und 19 in der gleichen Richtung um denselben Betrag soweit verschoben sind, dass die Papierbahn wieder mittig zwischen den beiden Bahnkantentastern 16 und 17 verläuft. Durch diese Verstellung wird der Drehrahmen 10 und damit der den Druckspalt durchlaufende Bahnabschnitt zwischen der Einlaufwalze 14 und der Auslaufwalze 15 in Richtung des geraden Pfeils senkrecht zur Bahnlaufrichtung verschoben, während der Drehrahmen 20 um die ortsfeste Achse 24 im Sinne des gebogenen Pfeils, und entsprechend um die gemeinsame freie Schwenkachse 25 verschwenkt wird.In the example according to FIG. 4 there is a lateral one Correction of paper web B instead of both Actuators 18 and 19 in the same direction around the same Amount shifted so far that the Paper web again in the middle between the two Web edge buttons 16 and 17 run. Through this Adjustment is the rotating frame 10 and thus the Pressure gap running through the web section between the Inlet roller 14 and the outlet roller 15 in the direction of straight arrow moved perpendicular to the direction of web travel, during the rotating frame 20 around the stationary Axis 24 in the sense of the curved arrow, and correspondingly about the common free pivot axis 25 is pivoted.

    Im Beispiel nach Figur 5 haben die Bahnkantentaster 16 und 17 unterschiedliche Abweichungen der Bahn vom mittigen Verlauf gemeldet, sodass eine Schrägkorrektur erforderlich ist. Zu diesem Zwecke verstellen die beiden Stellglieder 18 und 19 die ihnen zugeordneten Walzen um den gleichen Betrag in entgegengesetzter Richtung. Da der Druckspalt S mittig zwischen den Einlauf- und Auslaufwalzen 14 und 15 des Drehrahmens 10 liegt, hat das zur Folge, dass der Drehrahmen 10 eine bestimmte Drehung im Sinne des gebogenen Pfeils um die fiktive Drehachse D ausführt, die mittig durch den Druckspalt S geht und auf der Verbindungslinie zwischen den Achsen beider Zylinder 2 und 3 liegt, während der Drehrahmen 20 um die ortsfeste Drehachse 24 im entegengesetzten Sinne gedreht wird. Hierbei erfolgt also eine reine Winkelkorrektur der Papierbahn um die fiktive Drehachse D ohne seitliche Verschiebung. Im Beispiel nach Figur 4 wurde diese fiktive Drehachse D lediglich seitlich verschoben.In the example according to FIG. 5, the web edge sensors have 16 and 17 different deviations of the path reported from the middle course, so that a Skew correction is required. For this purpose adjust the two actuators 18 and 19 to them assigned rollers by the same amount in opposite direction. Since the pressure gap S is in the middle between the inlet and outlet rollers 14 and 15 of the Rotating frame 10 is the consequence that the Rotating frame 10 a certain rotation in the sense of the bent Arrow around the fictitious axis of rotation D that goes through the center of the pressure gap S and on the Connection line between the axes of both cylinders 2 and 3, while the rotating frame 20 around the Fixed axis of rotation 24 rotated in the opposite sense becomes. This is a pure one Angle correction of the paper web around the fictitious axis of rotation D without lateral shift. In the example according to FIG. 4 this fictional axis of rotation D was only on the side postponed.

    Im Beispiel nach Figur 6 findet eine kombinierte Korrektur statt, nämlich eine seitliche Verschiebung und eine gleichzeitige Drehung der Papierbahn. In diesem Falle werden die Auslaufwalze 23 des Drehrahmens 20 und die Einlaufwalze 14 des Drehrahmens 10 durch entsprechende Verstellung der gemeinsamen Achse 25 mittels des Stellglieds 18 in der einen Richtung um einen grösseren Betrag verstellt als die Auslaufwalze 15 des Drehrahmens 10 mit Hilfe des anderen Stellgliedes 19 in der anderen Richtung. Beide Drehrahmen werden also im Sinne der gebogenen Pfeile in unterschiedlichen Richtungen gedreht, und gleichzeitig wird der Drehrahmen 10 im Sinne des geraden Pfeils verschoben.In the example according to FIG. 6 there is a combined one Correction instead, namely a lateral shift and a simultaneous rotation of the paper web. In in this case, the outlet roller 23 of the rotating frame 20 and the inlet roller 14 of the rotating frame 10 through corresponding adjustment of the common axis 25 by means of the actuator 18 in one direction adjusted a larger amount than the outfeed roller 15 of the rotating frame 10 with the help of the other Actuator 19 in the other direction. Both Rotating frames are thus in the sense of the curved arrows in rotated in different directions, and at the same time the rotating frame 10 in the sense of the straight arrow postponed.

    Es sei bemerkt, dass mit Hilfe von verstellbar montierten Bahnkantentastern vor Beginn des Druckbetriebes die Papierbahn korrekt zu den Druckwerkzylindern ausgerichtet werden kann, indem die Stellung dieser Bahnkantentaster mechanisch oder elektrisch justiert wird.It should be noted that with the help of adjustable assembled web edge sensors before the start of printing the paper web correctly to the printing unit cylinders can be aligned by the Position of this web edge finder mechanically or electrically is adjusted.

    Im Beispiel nach den Figuren 7 bis 11 handelt es sich bei der dargestellten Rollendruckmaschine um ein Stichtiefdruckwerk in Form eines Bogendruckwerks mit im Pilgerschritt betriebenem Papierbahntransport, wie es bereits anhand der Figur 1 beschrieben wurde. Figur 7 zeigt die gleiche Druckmaschine wie Figur 1 mit einem durch Schablonenwalzen 50 eingefärbten Plattenzylinder 2 und einem Druckzylinder 3, wobei beide Zylinder drei durch Zylindergruben 2b bzw. 3b getrennte Druckzonen 2a bzw. 3a haben. Vor dem Druckspalt sind eine Zugwalze 4 und ein vorgeschalteter Papierbahnspeicher 6, hinter dem Druckspalt eine Zugwalze 5 und ein nachgeschalteter Papierbahnspeicher 7 installiert. Die Zugwalzen sind gesteuerte Saugwalzen, auf denen die Papierbahn durch Unterdruck gehalten wird. Der Unterschied zur Druckmaschine nach Figur 1 besteht in der Anordnung und Ausbildung der Registervorrichtung, deren Funktion von den Zugwalzen 4, 5 und dem Papierbahnspeicher 6 übernommen wird. Eine in Bahnlaufrichtung vor dem Papierbahnspeicher 6 angeordnete Registervorrichtung 54, wie in Figur 1 dargestellt, entfällt also.In the example according to FIGS. 7 to 11, this is the case in the illustrated web press Intaglio printing unit in the form of a sheet-fed printing unit with im Pilgrim operated paper web transport like it has already been described with reference to FIG. 1. Figure 7 shows the same printing machine as Figure 1 with a by plate rollers 50 inked plate cylinder 2 and a pressure cylinder 3, both cylinders three pressure zones 2a separated by cylinder pits 2b and 3b or 3a. In front of the printing nip are a pull roller 4 and an upstream paper web storage 6, behind the pressure nip a draw roller 5 and a downstream Paper web storage 7 installed. The pull rollers are controlled suction rolls on which the paper web passes Negative pressure is maintained. The difference to Printing machine according to Figure 1 consists in the arrangement and Training of the register device, the function of the pull rollers 4, 5 and the paper web storage 6 becomes. One in the direction of the web before Paper web storage 6 arranged register device 54, as shown in Figure 1, is therefore omitted.

    Die Zugwalze 4 vor dem Druckspalt S bildet die Einlaufwalze und die Zugwalze 5 hinter dem Druckspalt S die Auslaufwalze einer Leitvorrichtung, die dem Drehrahmen 10 nach den Figuren 2 bis 6 entspricht. Beide Zugwalzen 4 und 5 sind in einem gemeinsamen Rahmen gelagert, der aus einem Rahmenteil 30 für die Zugwalze 4, einem Rahmenteil 31 für die Zugwalze 5 und einem Verbindungsrahmen 32 besteht, der mittels Punktbefestigungen mit den Rahmenteilen 30 und 31 befestigt ist. Die Breite des Rahmens ist um so viel grösser als die Länge der Druckwerkzylinder 2 und 3, dass diese Zylinder in der Draufsicht nach Figur 10 innerhalb des Rahmens liegen.The pull roller 4 in front of the nip S forms the Inlet roller and the pull roller 5 behind the nip S the outlet roller of a guide device, the rotating frame 10 corresponds to the figures 2 to 6. Both Pull rollers 4 and 5 are in a common frame stored, which consists of a frame part 30 for the pull roller 4, a frame part 31 for the pull roller 5 and one Connection frame 32 is made by means of point fixings attached to the frame parts 30 and 31 is. The width of the frame is so much larger than the length of the printing cylinder 2 and 3 that this Cylinder in the plan view of Figure 10 within the Frame.

    Der Verbindungsrahmen 32, bei dem es sich vorzugsweise um einen leichten Rahmen aus Stahlrohr oder Kohlefaserverbund-Werkstoff handelt, nimmt die Papierzugkräfte und die Querkräfte zwischen den Zugwalzen auf.The connection frame 32, which is preferably around a lightweight frame made of tubular steel or Carbon fiber composite material takes the paper tensile forces and the lateral forces between the pull rollers on.

    An den Zugwalzen 4 und 5 ist direkt ihr Antriebsmotor 33 bzw. 34 angeflanscht. Der Rahmen mit den Zugwalzen 4 und 5 ist in einer durch die Achsen der Zugwalzen 4 und 5 gehenden Ebene beweglich gelagert. Zu diesem Zwecke sind die Rahmenteile 30 und 31 beiderseits mit Winkelstücken 35, 36 bzw. 37, 38 versehen, deren zur Achse der Zugwalzen parallel orientierte Schenkel alle in einer Ebene liegen und beiderseits mit Hilfe von Kugelführungen 39 im Maschinengestell 1 beweglich gelagert sind. On the pull rollers 4 and 5 you are directly Flanged drive motor 33 or 34. The frame with the pull rollers 4 and 5 is in one by the axes of the Pull rollers 4 and 5 moving level mounted movably. To for this purpose the frame parts 30 and 31 on both sides with elbows 35, 36 and 37, 38 provided whose parallel to the axis of the drawing rollers oriented legs all lie in one plane and on both sides with the help of ball guides 39 in Machine frame 1 are movably mounted.

    Die der freien Schwenkachse 25 im Beispiel nach den Figuren 2 bis 6 entsprechende Achse der Leitvorrichtung wird durch eine Kurvenrolle 40 gebildet, die nach den Figuren 10 und 11 in der Mitte des Rahmenteils 30 der Zugwalze 4, also mittig zu dieser Zugwalze, gelagert und deren Achse senkrecht zu der durch die Achsen der Zugwalzen gehenden Ebene orientiert ist. Diese Kurvenrolle 40 wird in einer Nut 41 geführt, die parallel zur Achse der Zugwalze 4 verläuft und in einem am Maschinengestell 1 befestigten Führungssegment 65 vorgesehen ist. Durch diese Führung kann die durch die Kurvenrolle 40 gebildete freie Schwenkachse des Rahmens 30, 31, 32 nur parallel zur Zugwalzenachse bewegt werden.That of the free pivot axis 25 in the example 2 to 6 corresponding axis of the Guide device is by a cam roller 40th formed according to Figures 10 and 11 in the middle of the frame part 30 of the pull roller 4, that is to say in the center this pull roller, stored and its axis perpendicular to the plane passing through the axes of the pull rollers is oriented. This cam roller 40 is in a groove 41 guided, which is parallel to the axis of the pull roller 4th runs and in a fastened to the machine frame 1 Guide segment 65 is provided. Through this guidance can the free formed by the cam roller 40 Pivot axis of the frame 30, 31, 32 only parallel to Pull roller axis are moved.

    An jedem der Rahmenteile 30 und 31 greift ein individuelles, gelenkig angebrachtes Stellglied 42 bzw. 43 an, welches jedes Rahmenende, also jede der beiden Zugwalzen 4 und 5, in deren Achsenrichtung verstellen kann, und zwar in Abhängigkeit von den Messignalen der vor und hinter dem Druckspalt installierten Bahnkantentaster 16 und 17, die hier unmittelbar hinter der ersten Zugwalze 4 bzw. vor der zweiten Zugwalze 5 liegen. Die ganze Anordnung ist so getroffen, dass sich der Druckspalt S in der Mitte zwischen den beiden verstellbaren Zugwalzen 4 und 5 befindet und der gesammte Rahmen mit den Zugwalzen 4 und 5 eine fiktive Drehung um einen im Druckspalt S auf der Verbindungslinie der Achsen von Plattenzylinder 2 und Druckzylinder 3 liegenden Drehpunkt D ausführt, wenn die beiden Zugwalzen 4 und 5 durch ihre Stellglieder 42 bzw. 43 um unterschiedliche Beträge verstellt werden, entsprechend den Stellungen des Drehrahmens 10 nach den Figuren 5 und 6. Wenn beide Zugwalzen 4 und 5 durch ihre Stellglieder 42 und 43 um gleiche Beträge in derselben Richtung verstellt werden, dann findet eine reine Parallelverschiebung des Rahmens und damit des Papierbahnabschnitts zwischen den Walzen 4 und 5 statt, entsprechend der Darstellung des Drehrahmens 10 nach Figur 4.One engages on each of the frame parts 30 and 31 individual, articulated actuator 42 or 43 which each end of the frame, i.e. each of the two Pull rollers 4 and 5, adjust in the axial direction can, depending on the measurement signals of the installed in front of and behind the pressure gap Web edge buttons 16 and 17, which are immediately behind here the first pull roller 4 or in front of the second pull roller 5 lie. The whole arrangement is made so that the pressure gap S in the middle between the two adjustable pull rollers 4 and 5 and the entire frame with the pull rollers 4 and 5 a fictitious Rotation around one in the pressure gap S on the connecting line the axes of plate cylinder 2 and Printing cylinder 3 lying pivot point D executes when the two pull rollers 4 and 5 by their actuators 42 or 43 are adjusted by different amounts, according to the positions of the rotating frame 10 according to the Figures 5 and 6. When both pull rollers 4 and 5 through their actuators 42 and 43 by equal amounts in be adjusted in the same direction, then one finds pure parallel displacement of the frame and thus the Paper web section between the rollers 4 and 5 instead, according to the representation of the rotating frame 10 Figure 4.

    Die in den Figuren 2 bis 6 erscheinende Zuführungsvorrichtung 20 wird im Beispiel nach den Figuren 7 bis 11 vom Papierbahnspeicher 6 gebildet, der an seiner Einlaufseite um eine längs des einlaufenden Abschnitts der Papierbahn B verlaufende ortsfeste Achse 46 kippbar am Maschinengestell 1 gelagert ist. Allgemeiner ausgedrückt, liegt diese Kippachse 46 in einer senkrecht zur Achse der Einlaufwalze der Leitvorrichtung, also zur Achse der Zugwalze 4 orientierten Ebene, welche diese Achse wenigstens näherungsweise in der Mitte schneidet.The one appearing in Figures 2 to 6 Feed device 20 is in the example according to the Figures 7 to 11 formed by the paper web storage 6, the on its inlet side by one along the inlet Section of the paper web B extending stationary axis 46 is tiltably mounted on the machine frame 1. Expressed more generally, this tilt axis 46 lies in one perpendicular to the axis of the feed roller of the guide device, So oriented to the axis of the pull roller 4 Plane which this axis is at least approximately in the middle cuts.

    Der Papierbahnspeicher 6 und der Rahmenteil 30, in welchem die Zugwalze 4 gelagert ist, sind durch eine angelenkte Spurstange 47 mechanisch miteinander verbunden. Diese Spurstange 47 ist an der der Kippachse 46 des Papierbahnspeichers 6 gegenüberliegenden Seite, an welcher die Papierbahn ausläuft, angelenkt; das andere Ende der Spurstange 47 ist an der nach Figur 11 linken Seite des Rahmenteils 30 der Zugwalze 4 angelenkt. Im Beispiel nach den Figuren 2 bis 6 hat die Schwenkachse 25 die Funktion der mechanischen Verbindung zwischen Zuführungs- und Leitvorrichtung.The paper web storage 6 and the frame part 30, in which the pull roller 4 is mounted are by a Articulated tie rod 47 mechanically with each other connected. This tie rod 47 is on the tilt axis 46 of the paper web storage 6 opposite side, at which the paper web runs out, articulated; the the other end of the tie rod 47 is at the position shown in FIG. 11 left side of the frame part 30 of the pull roller 4 articulated. In the example according to FIGS. 2 to 6, the Swivel axis 25 the function of the mechanical Connection between feeding and guiding device.

    Die Papierbahn B gelangt über eine Einlaufwalze 48 in den Papierbahnspeicher 6, bei dem es sich um einen Unterdruckspeicher handelt. Die Auslaufwalze dieses Papierbahnspeichers ist identisch mit der Zugwalze 4, also der Einlaufwalze der Leitvorrichtung. Durch die beschriebene Anordnung wird erreicht, dass bei einer Verstellung des Rahmenteils 30 mit der Zugwalze 4 der Papierbahnspeicher 6 durch die Spurstange 47 unter entsprechender Drehung um die Kippachse 46 derart mitgenommen wird, dass die Richtung der über die Zugwalze 4 in die Leitvorrichtung einlaufende Papierbahn entsprechend geändert wird, wie das im Prinzip die Figuren 4 bis 6 für die Ausführungsform mit zwei gekuppelten Drehrahmen zeigen.The paper web B passes through an infeed roller 48 in the paper web storage 6, which is is a vacuum accumulator. The outfeed roller this paper web storage is identical to that Draw roller 4, that is, the inlet roller of the guide device. The arrangement described ensures that when adjusting the frame part 30 with the Pull roller 4 of the paper web storage 6 through the Tie rod 47 with appropriate rotation around Tilt axis 46 is taken along in such a way that the direction of the pull roller 4 in the guide device incoming paper web is changed accordingly, like that in principle Figures 4 to 6 for the Show embodiment with two coupled rotating frames.

    Indem im Beispiel nach den Figuren 7 bis 11 die Zugwalzen 4 und 5 sowie der Papierbahnspeicher 6 direkt die Leit- und Zuführungsvorrichtungen bilden, wird jede zusätzliche zu beschleunigende Masse der Vorrichtungen, zum Beispiel für zusätzliche Papierleitwalzen, vermieden, und der Papierbahnabschnitt im Bereich des Druckspalts S zwischen den Zugwalzen 4 und 5 wird nicht zusätzlich verlängert.By in the example according to Figures 7 to 11 Draw rollers 4 and 5 and the paper web storage 6 directly the guiding and feeding devices, each will additional mass of devices to be accelerated, for example for additional paper guide rollers, avoided, and the paper web section in the area of Pressure gap S between the pull rollers 4 and 5 will not additionally extended.

    Das Ausführungsbeispiel nach Figur 12 zeigt eine Leitvorrichtung, in welcher die Einlauf- und die Auslaufwalzen ebenfalls durch Zugwalzen 4 und 5 gebildet werden, die beiderseits des Druckspalts eines im Pilgerschrittbetrieb arbeitenden Druckwerks in Rahmenteilen 30 bzw. 31 gelagert sind, von denen der Rahmenteil 30 genau so ausgebildet und geführt ist, wie im Beispiel nach den Figuren 2 bis 6. Beide Rahmenteile 30, 31 sind wiederum mittels Kugelführungen 39 in der durch die Zugwalzenachsen gehenden Ebene verschiebbar im Gestell 1 gelagert. Im Beispiel nach Figur 12 sind jedoch diese Rahmenteile 30 und 31 unabhängig voneinander und nicht durch einen Verbindungsrahmen miteinander verbunden. Statt dessen ist der die Zugwalze 5 tragende Rahmenteil 31 ebenfalls, wie der Rahmen 30, in der Mitte mit einer Kurvenrolle 60 versehen, die in einer parallel zur Achse der Zugwalze verlaufenden Nut 61 im Maschinengestell 1 geführt wird und deren Achse senkrecht auf der durch die Walzenachsen gehenden Ebene steht. The embodiment of Figure 12 shows a Guide device in which the inlet and the Outfeed rolls also by pull rolls 4 and 5 are formed on both sides of the pressure gap in the pilgrim step printing plant in Frame parts 30 and 31 are stored, of which the Frame part 30 is formed and guided exactly as in the example according to Figures 2 to 6. Both frame parts 30, 31 are in turn by means of ball guides 39 in the displaceable through the plane of the drawing roller axes stored in rack 1. In the example of Figure 12 are however, these frame parts 30 and 31 independently from each other and not through a connecting frame connected with each other. Instead, it is the one Draw roller 5 supporting frame part 31 also as the Frame 30, in the middle with a cam roller 60 provided in a parallel to the axis of the draw roller extending groove 61 is guided in the machine frame 1 and their axis perpendicular to that through the roller axes level.

    Ausser den beiden Stellgliedern 42 und 43, welche eine Verstellung der Zugwalzen in Richtung ihrer Achsen bewirken, unterliegt jeder Rahmenteil 30 und 31 der Wirkung eines zweiten Stellglieds 62 bezw. 63, welches eine Verschiebung senkrecht zur Zugwalzenachse ausführen kann und somit für die exakte Winkelstellung der Zugwalzen 4 bezw. 5 sorgt, und zwar wieder als Funktion der Messignale der Bahnkantentaster. Durch geeignete Ansteuerung der Stellglieder werden dann die Zugwalzen gemeinsam so ausgerichtet, dass sie genau die Stellung einehmen, die sie unter Verwendung eines mechanischen Verbindungsrahmens einnehmen würde. Die beiden Zugwalzen 4 und 5 gehören dann also sozusagen zu einem "elektronischen Drehrahmen". Die Stellglieder müssen hierbei entweder mit Schrittmotoren ausgerüstet sein oder geeignete Sensoren zur Lageerkennung haben. Die Ausführungsform ohne Verbindungsrahmen zwischen den Zugwalzen ist immer dann vorteilhaft, wenn nicht genügend Platz im Druckwerk vorhanden ist.In addition to the two actuators 42 and 43, which is an adjustment of the pull rollers in the direction of their Cause axes, each frame part 30 and 31 is subject the effect of a second actuator 62 or. 63, which is a displacement perpendicular to the draw roller axis can perform and therefore for the exact angular position the pull rollers 4 or 5 provides, again as Function of the measurement signals of the web edge finder. By then suitable actuation of the actuators Pull rollers aligned together so that they are just that Take a position that they use a would take mechanical connecting frame. The both pull rollers 4 and 5 then belong to, so to speak an "electronic rotating frame". The actuators must either be equipped with stepper motors be or have suitable sensors for position detection. The embodiment without a connecting frame between the Pull rolls are always advantageous if not there is enough space in the printing unit.

    Figur 13 und 14 zeigen eine weitere Ausführungsform einer Leitvorrichtung, in der die Zugwalzen 4 und 5 beiderseits des Druckspalts die Einlauf- und Auslaufwalzen bilden und, wie im Beispiel nach Figur 12, in voneinander unabhängigen Rahmenteile 30 und 31 gelagert sind, die mittels Kugelführungen 39 wiederum in der durch die Walzenachsen gehenden Ebene verschiebbar sind.Figures 13 and 14 show another Embodiment of a guide device in which the Pull rollers 4 and 5 on both sides of the nip Form inlet and outlet rollers and, as in the example according to Figure 12, in mutually independent frame parts 30 and 31 are mounted, which by means of ball guides 39 again in the plane passing through the roller axes are movable.

    Der Rahmenteil 30 mit der Zugwalze 4 ist, wie im Beispiel nach den Figuren 11 und 12, im Gestell 1 mittels einer zentral liegenden Kurvenrolle 40 geführt, die in einer zur Achse des Zylinders 3 parallelen Nut 41 eines im Gestell 1 befestigten Führungssegments 65 verstellbar ist. The frame part 30 with the pull roller 4 is, as in Example according to FIGS. 11 and 12, in frame 1 guided by means of a centrally located cam roller 40, in a groove parallel to the axis of the cylinder 3 41 of a guide segment 65 fastened in frame 1 is adjustable.

    Der andere Rahmenteil 31 ist durch zwei Kurvenrollen 66 und 67 im Maschinengestell 1 geführt, wobei die beiden Kurvenrollen möglichst weit ausserhalb der Mitte der Zugwalze 5 zwischen Papierbahnkante und Innenkante des Maschinengestells angeordnet sind. Diese Kurvenrollen, deren Achsen wiederum senkrecht zu der durch die Walzenachsen gehenden Ebene liegen, laufen in Nuten 70 und 71 von Führungssegmenten 68 und 69, die individuell zur Drehachse der Zugwalzen geneigt derart eingestellt werden können, dass für den Rahmenteil 31 mit der Zugwalze 5 ein fiktiver Drehpunkt erzeugt wird, der mit dem Drehpunkt der Kurvenrolle 40 zusammenfällt. In Figur 13 ist das durch die beiden strichpunktierten Linien veranschaulicht, welche von den Kurvenrollen 66 und 67 ausgehen und sich im Drehpunkt der Kurvenrolle 40 schneiden.The other frame part 31 is by two Cam rollers 66 and 67 guided in the machine frame 1, with the two cam rollers as far outside as possible the center of the draw roller 5 between the paper web edge and Inner edge of the machine frame are arranged. This Cam rollers, the axes of which are in turn perpendicular to the lying through the plane of the roller axes run in Grooves 70 and 71 of guide segments 68 and 69 that individually inclined to the axis of rotation of the pull rollers in such a way can be set that for the frame part 31 a fictitious pivot point is generated with the pull roller 5, which coincides with the pivot point of the cam roller 40. In Figure 13 this is by the two dash-dotted lines Lines illustrate which of the cam rollers 66 and 67 go out and at the pivot point of the cam roller Cut 40.

    Beide Rahmenteile 30 und 31 sind miteinander durch eine Schubstange 74 verbunden, die ausserhalb des Maschinengestells 1 die fest an den Rahmenteilen 30 und 31 angeflanschten Motoren 72 und 73 verbindet. Jede Zugwalze 4 und 5 benötigt bei dieser Ausführungsform, wie im Beispiel nach den Figuren 7 bis 11, nur je ein Stellglied 42 und 43. Aufgrund der Anordnung der Führungen in den Nuten 41, 70 und 71 kann die Zugwalze 4, geführt durch die Nut 41, parallel zum Zylinder 3 verschoben werden. Es verbleibt dann der Freiheitsgrad der Drehung um die Achse der Kurvenrolle 40. Diese Drehung wird durch die erwähnte Schubstange 74 kontrolliert. Bei einer Verschiebung der Zugwalze 5 in den Führungsnuten 70 und 71 beschreibt diese angenähert einen Kreisbogen um die Kurvenrolle 40. Durch die Schubstange 74 wird die Zugwalze 4 ebenfalls um die Kurvenrolle 40 gedreht und stets wenigstens annähernd parallel zur Zugwalze 5 gehalten. Both frame parts 30 and 31 are together connected by a push rod 74 which is outside the Machine frame 1 which is fixed to the frame parts 30 and 31 flanged motors 72 and 73 connects. Each Pull roller 4 and 5 requires in this embodiment, as in the example according to FIGS. 7 to 11, only one each Actuators 42 and 43. Due to the arrangement of the Guides in the grooves 41, 70 and 71 can the pull roller 4, guided through the groove 41, parallel to the cylinder 3 be moved. The degree of freedom then remains the rotation around the axis of the cam roller 40. This Rotation is by the aforementioned push rod 74 controlled. When the pull roller 5 is moved the guide grooves 70 and 71 describes this approximately a circular arc around the cam roller 40. By the Push rod 74, the pull roller 4 is also around Cam roller 40 rotated and always at least approximately held parallel to the pull roller 5.

    Figuren 14 und 15 zeigen für dieses Beispiel eine weitere Ausführungsform der vorgeschalteten Zuführungsvorrichtung in Form eines Drehrahmens 75, der die Einlaufwalze 78 und die Auslaufwalze 79 hat und in der Mitte seiner Eingangsseite mit der Drehachse 77 im Gestell 1 gelagert und mittels einer angelenkten Schubstange 76 mit dem Rahmenteil 30 der Zugwalze 4 verbunden ist. In diesem Falle ist also der Papierspeicher 6 fest im Maschinengestell 1 verankert und liegt innerhalb der Transportstrecke der Papierbahn zwischen dem die Zuführungsvorrichtung bildenden Drehrahmen 75 und der Bahnleitvorrichtung, die im wesentlichen durch die beiden Rahmenteile 30 und 31 gebildet wird. Diese Anordnung ergibt eine grössere Korrekturlänge K (Figur 15), als es durch Verwendung des Bahnspeichers 6 als Zuführungsvorrichtung im Beispiel nach den Figuren 7 bis 11 möglich ist.Figures 14 and 15 show for this example a further embodiment of the upstream Feed device in the form of a rotating frame 75, the has the inlet roller 78 and the outlet roller 79 and in the center of its input side with the axis of rotation 77 in Frame 1 stored and articulated by means of a Push rod 76 with the frame part 30 of the pull roller 4th connected is. In this case it is Paper storage 6 firmly anchored in the machine frame 1 and lies within the transport path of the paper web between that forming the feeder Rotating frame 75 and the web guiding device, which in essentially through the two frame parts 30 and 31 is formed. This arrangement results in a larger one Correction length K (Figure 15) as it is through use of the web storage 6 as a feed device in Example according to Figures 7 to 11 is possible.

    Der vorgeschaltete Drehrahmen 75 entspricht im wesentlichen dem Drehrahmen 20 im Beispiel nach den Figuren 2 bis 6, wobei die Ein- und Auslaufwalzen 78, 79 den Ein- bzw. Auslaufwalzen 22 und 23 und die Drehachse 77 der Drehachse 24 entsprechen.The upstream rotating frame 75 corresponds to essentially the rotating frame 20 in the example according to the FIGS. 2 to 6, the inlet and outlet rollers 78, 79 the inlet and outlet rollers 22 and 23 and the Axis of rotation 77 correspond to the axis of rotation 24.

    Im Falle üblicher Rollendruckmaschinen mit konstanter Papierbahngeschwindigkeit kann die in den Figuren 2 bis 6 dargestellte Registervorrichtung mit zwei Drehrahmen vorgesehen sein, während bei Rollendruckmaschinen mit im Pilgerschrittbetrieb arbeitendem Papierbahntransport die beiden Zugwalzen und der erste Papierbahnspeicher, bzw. der vorgeschaltete Drehrahmen die Leit- und Zuführungsvorrichtung bilden.In the case of conventional web presses with constant Paper web speed can in the Figures 2 to 6 shown register device with two rotating frames can be provided while at Web printing machines with pilgrim stepping machines Paper web transport the two pull rollers and the first paper web storage, or the upstream one Rotating frames form the guiding and feeding device.

    In allen Fällen lässt sich durch die Vorrichtung nach der Erfindung eine Papierbahn, die infolge von Inhomogenität im Papier über die Bahnbreite schräg aus dem Papierbahnspeicher ausläuft bzw. schräg die Einlaufwalze der Leitvorrichtung erreicht, oder die pendelnd ihre Richtung ändert, durch geeignete Steuerung und Auslenkung der Einlauf- und Auslaufwalzen wieder exakt zum Druckspalt ausrichten, so dass ein exaktes Seitenregister und Schrägregister eingehalten werden.In all cases, the device according to the invention a paper web, which as a result of Inhomogeneity in the paper obliquely across the web width the paper web storage runs out or at an angle Inlet roller of the guide device reached, or the swinging changes direction by appropriate Control and deflection of the inlet and outlet rollers align exactly to the pressure gap so that a exact page register and diagonal register maintained will.

    Die Zugwalzen können auch gewöhnliche, mit einer Anpresswalze zusammenwirkende Zugwalzen, also Teil einer üblichen Zugwalzengruppe, sein, und die Papierbahnspeicher können von beliebiger Bauart sein.The pull rollers can also be ordinary, with a Pressure roller interacting pull rollers, i.e. part a usual draw roller group, and the paper web storage can be of any type.

    Claims (9)

    1. A web-fed printing machine having two cylinders (2, 3) which form the nip (S) and between which the paper web (B) runs, at least one side thereof being printed in the process, and having a register device for aligning the web, said device exhibiting infeed and discharge rollers which guide the web and of which the position can be controlled by means of an actuating device by way of measuring signals from web-edge sensors (16, 17), characterized in that the register device exhibits a web-directing device (10; 32) with an infeed roller (4; 14) arranged upstream of the nip (S) and with a discharge roller (5; 15) arranged downstream of the nip and with web-edge sensors (16, 17) installed on both sides of the nip (S), in that the two rollers (4, 5; 14, 15) can be displaced relative to the machine framework (1) in a plane running through the axes of said rollers, and they can be individually adjusted by actuating members (18, 19; 42, 43) of the actuating device, and are mounted such that they can be individually displaced in the direction of their axes of rotation and can be pivoted into an oblique position, in that a web-feeding device (20, 6; 75) is provided upstream of the web-directing device (10; 32), which web-feeding device, on its infeed side, can be pivoted about a spindle (24; 46, 77) which is mounted in a stationary manner in the machine framework (1) and lies in a plane which is oriented perpendicularly with respect to the axis of the infeed roller (14, 78) and at least approximately intersects the infeed roller in the center, and in that the web-directing device and the web-feeding device are connected to one another.
    2. The web-fed printing machine as claimed in claim 1, characterized in that the two rollers (4, 5; 14, 15) of the web-directing device can be pivoted, for oblique positioning, about a common imaginary axis D which is defined by the connecting line, running centrally through the nip, of the axes of the two cylinders (2, 3).
    3. The web-fed printing machine as claimed in claim 2, characterized in that the infeed roller (4, 14) and the discharge roller (5, 15) of the web-directing device are mounted at the ends of a common frame (10; 30, 31, 32), and the two frame ends can be adjusted in the direction of the roller axes by in each case one of the above mentioned actuating members (18, 19; 42, 43), and in that one frame end, moreover, can be pivoted about a pivot spindle (25; 40) which is oriented perpendicularly with respect to the above mentioned plane, is arranged centrally with respect to the roller and can be displaced freely transversely with respect to the web-transporting direction.
    4. The web-fed printing machine as claimed in claim 3, characterized in that the above mentioned pivot spindle (25; 40) is mounted at the infeed end of the frame (10; 30, 31, 32).
    5. The web-fed printing machine as claimed in claim 1, characterized in that the infeed roller (4) and the discharge roller (5) of the web-directing device are mounted in separate frame parts (30, 31), and in that each frame part can be pivoted about a pivot spindle (40, 60) which is oriented perpendicularly with respect to the above mentioned plane, is arranged centrally with respect to the roller (4, 5) and can be displaced freely and transversely with respect to the web-transporting direction, and in that two actuating members (42, 62; 43, 63) are installed for adjustment purposes for each frame part (30, 31), of which one actuating member (42, 43) effects the displacement in the direction of the roller axis and the other actuating member (62, 63) effects pivoting about the above mentioned pivot spindle (40, 60).
    6. The web-fed printing machine as claimed in any of claims 2 to 5, characterized in that the pivot spindle is formed by a cam roller (40; 60) which is guided in a groove (41; 61) of the machine framework (1), the groove running parallel to the axis of the roller (4, 5).
    7. The web-fed printing machine as claimed in claim 1, characterized in that the infeed roller (4) and the discharge roller (5) of the web-directing device are mounted in separate frame parts (30, 31) which are connected to one another by a lateral push rod (74), in that the frame part (30) bearing the infeed roller (4) is guided, by means of a cam roller (40) arranged centrally with respect to the infeed roller, through a guide segment (65, 41) parallel to the axis of the cylinder (3), in that the other frame part (31) is guided, by means of two cam rollers (66, 67) installed on both sides of the roller center, in guide segments (68, 70; 69, 71) which are mounted adjustably on the machine framework (1) and can be individually adjusted in a sloping manner with respect to the axis of rotation of the drawing rollers (4, 5) such that, for this frame part (31), the point of rotation of the cam roller (40) of the other frame part (30) forms an imaginary point of rotation, and in that each frame part can be adjusted by an actuating member (42, 43).
    8. The web-fed printing machine as claimed in any of claims 1 to 7, characterized in that, upstream of the nip (S), as seen in the transporting direction of the web, a first drawing roller (4) and an upstream, first paper-web store (6) are installed and, downstream of the nip, as seen in the transporting direction of the web, a second drawing roller (5) and a downstream, second paper-web store (7) are installed, in that the two drawing rollers (4, 5) form the above mentioned adjustable infeed and discharge rollers of the web-directing device, and in that the first paper-web store (6) or a rotary frame (75) provided upstream thereof constitutes the above mentioned web-feeding device, which can be pivoted about the above mentioned spindle (46, 77), mounted in a stationary manner in the machine frame (1), and to which the drawing roller (4) which forms the infeed roller is coupled, preferably by an articulated track rod or push rod (47, 76).
    9. The web-fed printing machine as claimed in claims 1 to 3, characterized in that the web-directing device and the web-feeding device are formed by in each case one rotary frame (10, 20) with in each case one infeed and one discharge roller, of which the first rotary frame (20), forming the web-feeding device (10), can be pivoted about the above mentioned stationary spindle (24), located on the infeed side of said frame, in that the second rotary frame (10), forming the web-directing device, is offset perpendicularly with respect to the plane of the first rotary frame, in that the discharge side of the first rotary frame (20) and the infeed side of the second rotary frame (10) are located at least approximately vertically one above the other and are connected to one another by a common spindle (25) which is arranged centrally with respect to these frame sides and forms the above mentioned free pivot spindle, and in that the infeed side and the discharge side of the second rotary frame (10) can be displaced transversely with respect to the running direction of the paper web by in each case one actuating member (18, 19).
    EP95810301A 1994-05-20 1995-05-04 Rotary printing machine provided with a register device for aligning the paper web Expired - Lifetime EP0683123B1 (en)

    Applications Claiming Priority (2)

    Application Number Priority Date Filing Date Title
    CH01579/94A CH688137A5 (en) 1994-05-20 1994-05-20 The web-fed printing machine having a register device for aligning the paper web.
    CH1579/94 1994-05-20

    Publications (2)

    Publication Number Publication Date
    EP0683123A1 EP0683123A1 (en) 1995-11-22
    EP0683123B1 true EP0683123B1 (en) 1998-10-28

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    ID=4213726

    Family Applications (1)

    Application Number Title Priority Date Filing Date
    EP95810301A Expired - Lifetime EP0683123B1 (en) 1994-05-20 1995-05-04 Rotary printing machine provided with a register device for aligning the paper web

    Country Status (8)

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    US (1) US5540146A (en)
    EP (1) EP0683123B1 (en)
    CN (1) CN1081538C (en)
    CA (1) CA2148986C (en)
    CH (1) CH688137A5 (en)
    DE (1) DE59504031D1 (en)
    DK (1) DK0683123T3 (en)
    RU (1) RU2129489C1 (en)

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    Also Published As

    Publication number Publication date
    CH688137A5 (en) 1997-05-30
    CA2148986A1 (en) 1995-11-21
    DE59504031D1 (en) 1998-12-03
    CN1118306A (en) 1996-03-13
    DK0683123T3 (en) 1999-07-19
    US5540146A (en) 1996-07-30
    RU95107886A (en) 1996-12-27
    CA2148986C (en) 2006-05-02
    CN1081538C (en) 2002-03-27
    RU2129489C1 (en) 1999-04-27
    EP0683123A1 (en) 1995-11-22

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