EP1621497A1 - Method and device for the preparation of a stockage paper web for the flying roll exchange - Google Patents

Abstract

The mechanism for preparing rolls of paper (50) for flying roll change has an applicator (30) on which reels (45) of adhesive tape and reels of protective tape (81) can be mounted. A slide (47) cooperates with a pressure roller (39) to apply the adhesive tape to the paper roll and a blade (40) cuts it off.

Description

The invention relates to a device for preparing a stock paper web roll for the flying reel change according to the patent claim 1.

By a flying reel change is meant the automatic gluing of a new stock paper web roll to the paper web of an almost expired reel in the reel changer of a web-fed rotary printing press. For this to be possible, a new stock paper web roll must be prepared accordingly. The outer layers of the roll damaged during transport must be removed and the paper web start of the outermost layer must be secured to the second layer so that the new roll does not unwind when accelerating to the speed of the running paper web. Furthermore, a bonding adhesive must be provided, which connects at the full production speed of the paper beginning of the new paper roll with the paper web of the almost idle role safely. After sticking the new stock paper web roll dissolves at the beginning of unwinding - held at the second layer - web start by the intended break points break and the old web is cut off behind the junction by a device on the reel changer or cut off.

For the preparation of stock paper web rolls various systems are known, such as so-called V or W adhesive tips, which the V or. W-shaped web start at the or keep the tips on the roll or just glue, which are arranged at right angles or up to about 70 ° to the paper web running direction. All procedures are carried out manually or automatically with liquid adhesive or with double-sided adhesive tape.

From DE 41 18 690 a straight adhesive system with each double-acting adhesive tapes for the holding and bonding adhesion is known, in which the release of the web start from the second layer is made possible by a perforation line.

EP 771 300 shows an apparatus and a method for preparing an uplifted stock paper web roll for flying reel change. For this purpose, a height-adjustable frame is arranged on the reel changer on which can move in the axis-parallel direction to the stock paper web roll a working carriage and a holding device for the unwound from the roll web start. On the work slide means for cross-cutting the web, for applying adhesive labels and for applying a double-sided adhesive tape for connection to the running paper web are arranged. In the means for applying the adhesive in addition to the unwinding rollers for the adhesive tapes and each take-up rollers are provided for receiving the carrier tapes. The method to be carried out with the device makes it possible to perform the cross-cutting of the paper web, the application of the adhesive labels and the adhesive double-sided adhesive strip during a linear axis-parallel movement of the work carriage, but also looks at the various functions in different orders sequentially - each with a linear out and Return movement - to carry out the work carriage. After completion of the necessary back and forth movements of the web start is released by the retaining device and wound back onto the supply paper web roll, wherein a pressure roller - which presses beyond the web beginning adhesive labels - presses on the second layer of the paper roll to hold the web start.

Recently, however, double-sided adhesive tapes have become known whose - the web start on the second layer of the supply paper web roll holding - adhesive layers split up. Such adhesive tapes require others Method and apparatus for preparing a stock paper web roll for flying reel change.

In Fig. 6 the cross section, one of DE 196 28 317 become known double-sided adhesive tape (80) is shown. The cutting plane of the adhesive tape (80) lies transversely to the unwinding direction of a corresponding adhesive tape roll. In the unwinding direction, the outer side is provided with a protective or separating layer (81) divided by a slot (82), which covers the adhesive (83) applied to a carrier material (84). On the inside of the adhesive tape (80), another strip not covering the entire width is coated with an adhesive (85) in the unwinding direction. On this adhesive (85) adheres a spliceable carrier layer (84) on which also an adhesive (87) is applied. In the case of adhesive tapes (80) made into rolls, the additional protective or separating layer (88) can be dispensed with because the adhesive layer (87) rests on the outside of the protective / separating strip (81).

In Fig. 7, the second paper layer (55) of a supply paper web roll (50) is shown, on which by means of the adhesive (87), an adhesive tape (80) is attached. The unwinding axis of this stock paper web roll (50) extends into or out of the image plane. The paper web beginning (53) is held on the outside of the adhesive tape (80) in the region of the protective / separating tape (81 a) by the adhesive (83). The remaining outer strip width of the adhesive (83) is already freed from the protective tape (81 b) in this illustration and adheres to the empty-running paper web (54) as shown in FIG. 8. FIG. 8 is the enlarged detail Z of FIG. 5, which shows a flying reel change in a reel changer (60). Immediately after bonding the paper web (54), the spliceable carrier (86) is split into two parts (86a and 86b) so that the paper web start (53) - drawn from the idle paper web (54) - from the new stock paper web roll (50). can be unwound. The idle paper web (54) is trimmed after the bond bond site and a new stock paper web roll (50) can be incorporated into the reel splicer (60) for the idle paper roll (50 ').

From DE 195 44 010 an adhesive tape is known, which also works according to the principle described above. In contrast to the above-described adhesive tape, however, its inner side is completely coated with an adhesive so that it adheres over its entire width to the second layer of a supply paper web roll. Another advantage of these tapes is the integration of a reflective or metallic layer in the carrier layer, which makes it possible to interrogate optical or inductive signals, for example, to activate Makulaturweichen. The use of such tapes saves the effort to apply additional signal sheets.

Another variant of such adhesive tapes is described in DE 198 30 673. FIG. 9 shows such an adhesive tape (90) analogously to FIG. 6. The The adhesive (92) located on the outside is covered by an undivided protective tape (91) and the carrier (93) is coated on its underside or the inside of the adhesive tape (90) with an adhesive (94) over its entire width. In a partial region of the adhesive (94), in the unwinding direction, a partial strip is coated with a splice-free carrier (95) which has a further adhesive layer (96) on its other surface. When such an adhesive tape (90) is provided on a roll, this adhesive (96) and the adhesive (94) lie on the outer release layer (91) of the underlying layer and the protective / release layer (97) can be dispensed with. The attachment of the paper web beginning (53) on the second paper layer (55) of the supply roll (50) is shown in Fig. 10. When - on the second paper layer (55) - lying paper web start (53) of the adhesive tape strip (90) with the one adhesive (94) on the paper web beginning (53) is glued, the splice-friendly carrier layer (95) protrudes and with its adhesive (96 ) makes a connection to the second paper layer (55). The outer separating strip (91) has already been pulled off in this illustration, so that the adhesive (92) is exposed for the bond connection. FIG. 11 shows the detail Z from FIG. 5 when using an adhesive tape (90) according to FIGS. 9 and 10. Analogously to the other examples, the spliceable carrier (95) splits into two parts (95a and 95b), so that the paper web start (53) can be unwound from the new stock paper web roll. An advantage of this type is that the paper web beginning (53) during application of the adhesive tape (90) does not have to be repelled and then forced back onto the outside. In the case of inaccurate operation, however, there is a risk that the adhesive strip (90) protrudes too far beyond the paper web beginning (53), the adhesive (94) adheres to the second paper layer (55) and the release of the paper web beginning (53) after adhering to the paper web idle paper web (54) prevented.

With appropriate processing, the adhesive tapes with such effect principle on a high adhesive security and simplify the preparation of stock paper web rolls for the flying role change.

The object of the invention is to provide a tape applicator and a method executable therewith, which allows the manual or automatic adhesive preparation of stock paper web rolls with splitting tapes and to simplify the previously known devices and methods.

This object is achieved by the features of patent claim 1.

The application device according to the invention can advantageously be used both stationary on a reel changer and used as a mobile device for adhesive preparation of not yet raised stock paper web rolls become. Likewise, an advantageous use of an applicator according to the invention directly after a Papierauspackstation in a stationary gantry design as a manual, semi-automatic or fully automatic version is possible. When used on the reel changer, the protective tape for the bonding can be removed immediately. For example, to prepare a larger number of delivered stock paper web rolls - after unpacking and removing the damaged paper layers - the applicator can be approached on a carriage to the respective supply roll and perform the inventive method. Since the date of use is usually still open for such roles, the protective tape is left on the area provided for the bonding adhesion and cut off by a cutting device at the end of the job. The rolls prepared in this way can be stored in a paper warehouse and even after days, the adhesive has its full adhesive power to ensure a safe flying roll change. The protective strip can either be removed manually or possibly replaced by an automatic device on the roll changer.

A device according to the invention allows, in addition to the above-described, self-splicing adhesive tapes, of course, the processing of other adhesive tapes functioning according to the same or similar principle.

Fig. 1

ist die Seitenansicht einer erfindungsgemäßen Vorrichtung an einer nicht eingeachsten Vorratspapierbahnrolle,

Fig. 2

zeigt die Ansicht X aus Fig. 1,

Fig. 3

stellt die Ansicht A-B aus Fig. 2 vergrößert dar,

Fig. 4

zeigt ein erfindungsgemäßes Auftragsgerät in Ansicht Y aus Fig. 1, in

Fig. 5

ist ein Rollenwechsler mit einer erfindungsgemäßen Vorrichtung gezeigt,

Fig. 6, 7, 9 und 10

zeigen verschiedene Klebebänder und deren Prinzip zum Halten des Papierbahnanfangs auf der Vorratspapierbahnrolle, die

Fig. 8, 11

zeigen jeweils den vergrößerten Ausschnitt Z aus Fig. 5, jeweils mit Klebebändern gemäß den Fig. 6 bzw. 9 und die

Fig. 12, 13, 14, 15

zeigen die Anordnung eines Auftraggerätes an einem Rollenwechsler für eingeachste sowie weitere ortsfeste Vorbereitungsstationen für nicht eingeachste Papierbahnrollen.

The invention will be explained in more detail with reference to the accompanying schematic drawings. The

Fig. 1

is the side view of a device according to the invention on a non-stationary stock paper web roll,

Fig. 2

shows the view X of FIG. 1,

Fig. 3

represents the view AB from FIG. 2 enlarged,

Fig. 4

shows an inventive applicator in view Y of Fig. 1, in

Fig. 5

is shown a reel changer with a device according to the invention,

FIGS. 6, 7, 9 and 10

show various adhesive tapes and their principle for holding the paper web start on the stock paper web roll, the

Fig. 8, 11th

each show the enlarged section Z of FIG. 5, each with adhesive tapes according to FIGS. 6 and 9 and the

FIGS. 12, 13, 14, 15

show the arrangement of an applicator on a reel splicer for eingeachste and other stationary preparation stations for non-ingrained paper web rolls.

FIG. 1 shows a device according to the invention, which is designed as a mobile device, from the side, on a stock paper web roll to be prepared (50) arranged. The stock paper web roll (50) is mounted on a conventional transport system for such paper rolls and to illustrate the possible uses of the device within the stock paper web roll (50) further smaller roll diameters are located. For the following explanation of Fig. 1 and the - shown in Fig. 2 - View X is included.

The mobile device consists of a carriage (1) with four steerable and lockable wheels (3), which allow ideal mobility as well as exact positioning and fixing of the device with respect to a stock paper web roll (50). The frame (2) is open on the front broad side, so that with the carriage (1) so close to the supply paper web roll (50) can be moved that a - to the linear unit (10) belonging to - crossbar (13) on the surface of Stock paper web roll (50) rests. The linear unit (10) consists essentially of a support (18) on which a guide rail (11) and grooves are provided and the cross-beam (13) which terminates at its two ends with side plates (14). The side plates (14) are each attached via two clamping devices (19) on racks (4) of the carriage (1) and can be solved to set up the height. Each side plate (14) is guided with the two clamping devices (19) via spindle nuts in a respective threaded spindle (5) mounted on the frame (4). The threaded spindles (5) can be independently on both racks (4) of the carriage (1) by hand wheels (6) rotate, which can be adjusted in dissolved clamping devices (19), the height of the linear unit (10). With hand levers, the clamping devices (19) are activated, so that the side plates (14) of the linear unit (10) either directly or via spacers with the frames (4) brace and are rigidly fixed to the carriage (1). Due to the height adjustability of the linear unit (10), storage paper web rolls (50) of various diameters, for example from about 700 to about 1300 millimeters, can be prepared for the flying reel change with devices according to the invention.

Preferably, the linear unit (10) is arranged parallel to the Abspulachse the supply paper web roll (50), but due to the two-sided adjustment on the racks (4), the linear unit (10) can also be adjusted inclined to the paper roll axis, in which case usually a slope to about 20 ° is set. For inclinations either joints and sliding elements must be provided or the elasticities of the corresponding components to be exploited.

In a fully automatic embodiment, the threaded spindles (5) are driven by controllable electric motors and for clamping the side plates, for example, electromagnets can be provided. Of course, other active principles, such as pneumatic cylinders can be provided for height adjustment and fixation of the linear unit (10).

As can be seen in principle from FIG. 2, a coating device (30) can be moved on the linear unit (10) from one end face of the stock paper web roll (50) over its surface. The length of the linear unit (10) is preferably dimensioned for this so that the applicator (30) can overflow both end faces of the paper roll (50) with its entire width. If flap means are provided which allow the applicator (30) to be folded away from the surface of the paper roll (50), it is also possible to process stock paper web rolls (50) with widths nearly equal to the length of the linear unit (10). On the linear unit (10) stops (12, 12 ') are provided for the applicator (30) mark the beginning and end of the adhesive tape order. The stops (12, 12 ') can also be so connected with elbows (21) which abut both end faces of the stock paper web roll (50) that they are automatically added together with the setting on different roll widths and the adhesive beginning and the adhesive end always Right.

Fig. 3 shows the section A-B of Fig. 2 is enlarged, wherein the side plate (14) is assumed to be transparent and releases the view of the arranged behind her applicator (30). On the side plate (14) holding holes (20, 20 ') are provided, through which the clamping device (19) produces the tension with the frame (4) of the carriage (1). The lower retaining bore (20 ') is designed as a slot, so that the applicator (30) with the linear unit (10) to the upper retaining bore (20) - parallel to the axis of the stock paper web roll (50) - pivoted and - on - on the paper roll surface resting crosspiece (13) - can be radially aligned with the axis of the stock paper web roll (50). This ensures that regardless of which roll diameter, the height of the linear unit is set, the application roller (39) and the sliders (38) act evenly on the respective paper surface. In order to check the correct radial alignment, an alignment mark (15) is provided on an angle piece (21) which should lie at or slightly below the paper surface.

In order to expand the pivoting range of the side plates (14), the elongated holes (20 ') can be extended or, for example, additionally the upper holding bores (20) can each be designed as a slot.

Preferably, in the grooves of the carrier (18) at both ends of the stock paper web roll (50) each an elbow (21) is applied and secured with corresponding sliding blocks. At the angle pieces (21) in each case a clamping device (16) is arranged with which the linear unit (10) may optionally be additionally braced against the paper surface. As can be seen from FIGS. 1 and 2, a collar bushing (7) is introduced into both openings of the uniaxial hole (52) of the stock paper web roll (50), around the protruding end of which a tension band (17) is looped and passed through the tensioning device (16) can be stretched. On the carriage (1) corresponding brackets for such collar bushes (7) are provided, which can be used especially for non-ingrained roles.

At the angle pieces (21) sheets (23), preferably made of spring steel, are provided, which laterally of the supply paper web roll (50) and with a notch - about as wide as the application roller (39) - extend a short distance into the paper surface. By supporting the sheets (23) on the cross-beam (13), the second paper layer (55) is held down at the beginning and end of the adhesive tape application, so that advantageously a lateral distortion of the paper can be prevented, if too much lateral pull on the paper during adhesive tape application acts.

On the support (18) a guide rail (11) is further provided, in which the applicator (30) is guided on its base body (31) with appropriate means without play and, if necessary, can be moved away by suitable drive units and positioned.
In particular for manual operation, stops (12, 12 ') can be positioned on the upper side of the carrier (18) to block the path of the applicator (30) at the beginning and at the end of the adhesive tape application. In the direction of work, these stops (12, 12 ') must be manually disengaged, on the way back they are automatically overrun by a run-on slope.

In the view of FIG. 3, an adhesive tape roll (45) is shown, which is arranged on a rotatably mounted, preferably braked holder (35) for unwinding the adhesive tape. To wind up the protective tape, which separates the adhesive layers of the double-sided adhesive tape against each other and protects after application to the paper surface, another holder (36) is provided on the circumference of the protective tape - the beginning is preferably held by a slotted clamping ring (43) - can be wound up. Both holders (35, 36) as well as an application unit (37) are arranged on a - relative to the base body (31) - movable sliding piece (32).

On the application unit (37) a job roll (39) is rotatably mounted, which presses the adhesive tape on the paper surface. The contact surface of this application roller (39) is excluded in the central region, so that it presses the adhesive tape (80, 90) only with its two outer regions and the application of adhesive tape (80, 90) on stock paper web rolls (50) with different diameters is possible , When rolling on the tape, the application roller (39) via a belt drive (42) - the holder (36) locked by a freewheel against reverse running in such a way that the protective / separating belt (81, 91) - as a partially wide strip (81a ) or in its entire width (81, 91) - wound up under tension. The belt-driven holder (36) and the holder (35) for the adhesive tape are, for example, rollers on which the waste tape can be wound up or an adhesive tape roll can be attached, and are preferably equipped with adjustable brake springs. On the side of the application roller (39), sliders (38) are arranged, which are resiliently supported on the application unit (37) and thus hold down the paper laterally of the adhesive strip (80, 90). The sliders (38) are preferably made of polytetrafluoroethylene. In the illustration, the sliding piece (32) is in a position for applying the adhesive tape (80, 90). By a - in the base body (31) rotatably mounted - eccentric (34) which is provided with a hand lever and whose eccentricity engages in a recess of the sliding piece (32), the sliding piece (32) can be moved. In this manually operated design, the hand lever of the eccentric (34) can preferably engage in the order and a return transport position to hold these predetermined positions for the corresponding functions.

At the adhesive end, the position of the applicator (30) by a clamping screw or a pneumatic cylinder on the linear unit (10) is fixed and the sliding piece (32) placed in the return transport position, wherein the application roller (39) stands out from the paper surface and the in Fig. 4, cutting blade (40) may be retracted to cut off the adhesive tape (80, 90) between the raised applicator roll (39) and the paper surface. The cutting blade (40) is preferably pivotally suspended on a lever parallelogram and on its underside a resiliently displaceable sliding plate (29) is arranged. It is advantageous to turn the cutting blade (40) already in the application position so far that the adhesive-repellent sliding plate (29) presses the adhesive tape (80, 90) onto the paper surface and, when switching to the return transport position, continues to pivot the cutting blade (40) the sliding plate (29) constantly exerts pressure on the adhesive tape (80, 90). When swinging further, the sliding plate (29) shifts and thus releases the cutting edge of the cutting blade (40), which then cuts off the adhesive tape (80, 90).

When using so-called strapless adhesive tapes in the adhesive itself no connection, so that such tapes - provided that the protective / separating tape is completely removed - tear off automatically by lifting the application roller (39). In these cases, the cutting blade (40, Fig. 4) need only be retracted when the protective tape (81b, 91) is left on the adhesive (83, 92) to prepare a stock paper web roll (50) for later use.

In the return transport position can - as shown in Fig. 3 - a paper cutting knife (41) in a longitudinal slot on the cross-beam (13) swing and when moving back the applicator (30) in its initial position is - on the cross-beam (13) repulsed - excess roll beginning (51) cut off. The resulting predetermined paper web beginning (53) has from the investment line of the cross-beam (13) on the paper roll exactly the length that he only when pressing on the adhesive provided Area covered. The paper cutting knife (41) is preferably provided with a plurality of cutting edges and reversibly arranged on its pivotable holder in order to easily and quickly bring an unused cutting edge in cutting position when a cutting edge wear.

The folded-back roll start (51) is preferably kept under tension over the entire width of the roll by a hold-down (22) around the crosspiece (13). With the preferably angular holding-down device (22), the paper web beginning (53) can advantageously be pressed uniformly on the adhesive of the adhesive tape (80, 90).

For a fully automatic embodiment, the applicator (30) for switching between the different positions is preferably equipped with pneumatic cylinders, which drive against corresponding stops. Other suitable drives are of course also possible.

FIG. 4 shows the applicator device (30) according to the invention from FIG. 1 in view Y as an enlarged detail. Behind the applicator (30) of the carrier (18) with the guide rail (11), on which the base body (31) for movement over the surface of the supply paper web roll (50) with four guide rollers is guided without play. On the front of the main body (31), which is preferably formed as a flat base plate, two guides (33) are arranged, between which the sliding piece (32) is movable transversely to the axis of the stock paper web roll (50) and from the eccentric (34, Fig. 3) can be placed in the different working positions. On the preferred designed as a plate sliding piece (32) is - in this view in the upper part - the holder (35) for unwinding a roll of adhesive tape (45) and - in the lower part - the driven holder (36) for winding the protective / separating tape arranged. On the unwinding holder (35) can be different shots for different inner diameter of the adhesive tape rolls (45) attach. The take-up holder (36) is preferably provided with a drum on which a slotted clamping ring (43) for clamping the beginning of the strip of protective / separating film (81, 91) is pushed. When using tapes with split protective / separating tape both strips can be wound parallel to each other or even one alone. For this holder (36) and a separate independent drive, such as an electric motor can be provided.
On both brackets (35, 36) can be adjusted to influence the respective belt tension a braking torque. Discs are preferably provided on the holders (35, 36) to which the bands can rest in the axial direction. The locked against reverse freewheel on the take-up holder (36) prevents the unwinding of the guard band (81, 91) when the application roller (39) is lifted.

At the end of the supply paper web roll (50) facing the sliding piece (32), an application unit (37) is arranged, in which the application roller (39) is rotatably supported and on which - in the order and cutting position - sliders (38) resiliently supported to hold down the paper side of the adhesive tape. On the sliders (38) and a movable guide roller (47) and a cutting blade (40) are guided. The cutting blade (40) is provided for cutting off the protective / separating strip (81, 91) and / or the adhesive tape (80, 90) and can be actuated via an unnumbered hand lever. In an automatic embodiment, a pneumatic cylinder is preferably provided instead of a hand lever. Of course, the actuating mechanisms are coupled to the cutting blade (40) so as not to hinder the resilient mobility of the sliders (38). In the illustrated application position of the sliding piece (32), the cutting blade (40) has moved out of the area of the application roller (39). In both versions (manual or automatic), the cutting blade (40) is held by spring force in this initial position to avoid damage or interference.

The adhesive tape (80, 90) is guided from the adhesive tape roll (45) with the side protected by the separating belt (81, 91) via a first guide roller (44) to a further guide roller (46) and from there through in the sliders (38) mounted - adhesive repellent guide roller (47) with its protected side resiliently applied to the application roller (39). Up to the line of contact of the application roller (39) with the surface of the supply paper web roll (50), where it presses the adhesive tape (80, 90) for adhering its inside to the paper surface, the adhesive tape (80, 90) is removed from the protective / release belt (81 , 91) - which further wraps the application roller (39) - held on the lateral surface. The wrapping of a partial strip (81 a) or the entire width of the protective / separating strip (81, 91) around the application roller (39) around, is ensured by the guide roller (48) which the protective / separating strip (81, 91) leads to the take-up holder (36).

Between the first guide roller (44) and the second guide roller (46), a pivot lever (49) can be provided, which in the course of conversion of the sliding piece (32) in the return transport position, for example by a cam, in the path of the adhesive tape (80, 90 ) is pivoted. This path extension for the adhesive tape (80, 90) between the two guide rollers (44, 46) is compensated by unwinding from the adhesive tape roll (45). When changing over the applicator (30) in the order position pivots the lever (49) back to its original position, outside of the tape run and the so freed excess length of the tape (80, 90) advantageously facilitates the beginning of the adhesive application, since the adhesive tape (80, 90 ) at the beginning is not under tension.

Fig. 5 shows the schematic structure of a roll changer (60), during a roll change at the moment of sticking the new stock paper web roll (50). The - at the speed of the paper web (54) - accelerated new stock paper web roll (50) is applied by pivoting the pickup arm to the idler paper web (54), so that at the outset - with reference to FIGS. 8 and 11 - explained splicing operations.

The adhesive tapes (80, 90) or other such adhesive tapes shown in FIGS. 6 and 11 are generally about 50 millimeters wide and wound up with the illustrated cross sections on cardboard rings with inner diameters of about 76 millimeters. The rolls made up in this way have an adhesive tape length of about 50 meters with an outside diameter of about 150 millimeters. The device described can be set up in a simple manner on rollers with different dimensions. The outer adhesives (83, 92) of the adhesive tapes (80, 90) are covered with protective tapes (81, 91) - usually silicon layers - which are also slotted in some types of adhesive and can therefore be removed separately. The insides of the adhesive tapes rest on the release layer of the underlying roll layer.

To prepare an unwrapped stock paper roll (50) for a flying reel change freed of damaged layers, the trolley (1) is moved up to it with the linear unit (10) set to the appropriate height and fixed by blocking the wheels (3). After applying the angle pieces (21) to the end faces of the stock paper web roll (50) and setting the correct inclination based on the alignment marks (15), the tension bands (17) can also be applied for better stabilization. To mark the adhesive beginning and the end of the stops (12, 12 ') on the support (18) of the linear unit are positioned accordingly. For simplicity, the stops (12, 12 ') may be connected to the elbows (21) so that, when they are applied to the end face of the supply paper web roll (50), the stops (12, 12') are also correctly positioned. The angle pieces (21) are preferably provided on the - the roller (50) facing - sides with inlet slopes, so that they are aligned in preparation of several uniform stock paper web rolls (50) based on the first and used in the following rollers (50) for positionally accurate approach can be done without damaging the faces or outer layers of paper. To hold down the paper, the sheets (23) can be applied to the end edge of the stock paper web roll (50).

In the fully automatic functioning device, the tasks of the stops (12, 12 ') and the other positioning aids are taken over by photoelectric sensors or other electronic devices.

The application device (30) is in its starting position, preferably laterally of the stock paper web roll (50) and is provided with a corresponding adhesive tape roll (45). stocked. Depending on the intended use, the protective / separating strip (81, 91) either as a partial strip (81 a) or in its entire width (81, 91) or - when using the adhesive tape (90), as shown in FIG. 9 - not at all Threaded to the holder (36) for winding.

Before the adhesive application can begin, the roll beginning (51) is struck back over the cross-beam (13), the excess roll beginning (51) must be so long that it is possible, the defined paper web beginning (53) at the longitudinal slot of the cross-beam (13) to cut. The roller beginning (51) can be held by a hold-down (22) under tension around the cross-beam (13).

Then, the applicator (30) to the first stop (12), which marks the adhesive beginning, pushed and placed in the adhesive tape application position. The stopper (12) is released and, as the applicator (30) advances, until the next stop (12 ') - the adhesive end - the adhesive tape is applied with its inside to the second paper layer (55) of the stock paper web roll (50). There, the applicator (30) is placed in the return transport position and if necessary is cut off with the cutting blade (40), the protective / separating tape and / or the tape. Thereafter, if necessary, the sheets (23) are removed and the paper cutting knife (41) is rotated in the longitudinal slot on the cross-beam (13) to the excess roll start (51) from the stock paper web roll (50) during the return movement of the applicator (30). to cut off. The longitudinal slot is positioned so that the predetermined paper web beginning (53) cut there, during the final knocking back onto the second paper layer (55), falls precisely onto the adhesive area provided for it and can be pressed on. For pressing, it is advantageously possible to use the hold-down device (22), which with its shape, which is preferably in the form of an angle profile, uniformly presses the corresponding paper area.

Before preparing the next stock paper web roll (50), the paper cutting knife (41) must be unscrewed from the cutting position and, if necessary, the clamping bands released.

This method described above is carried out in the processing of adhesive tape according to FIG. 6, 7 or this adhesive tape, which in principle is similar.

When using the adhesive tape (90) according to Fig. 9, 10 or working on the same principle adhesive tapes, the applicator (30) must first in the position for cutting the paper web start (53), the paper cutting knife (41) rotated in its paper cutting position and the predetermined paper web start (53) are cut. The predetermined paper web beginning (53) is then knocked back onto the second paper layer (55) of the stock paper web roll (50) and the adhesive tape (90) is applied by the application device (30) so that the free adhesive (94) coincides exactly with the paper web start (53). closes off and - on the spliceable carrier (95) located - adhesive (96) the second paper layer (55) sticks. Again, it can be determined by threading or Nichteinfädeln the protective / separating tape (91) on the holder (36), whether it is deducted directly or should remain on the adhesive (92). At the end of the adhesive application, the protective / separating tape (91) and / or the adhesive tape (90) can be cut off.

The adhesive tape (80, 90) is preferably not applied flush from one end face of the supply paper web roll (50) to the other, but is slightly spaced from the edge, is started with the adhesive tape application and is terminated a short distance before the other edge. This has the advantage that, when the trajectory is slightly laterally offset with respect to the new supply paper web roll (50), no adhesive remains uncovered after the flying reel change.

In order not to be fixed to a working direction when applying the adhesive tape, applicators (30) can be provided, which are constructed mirror-inverted to one another in the working direction. The use of a corresponding application device (30) can simplify the manual operation with the right or left hand.

FIG. 12 shows a reel changer (60), on which the applicator (30) with its guide parts described according to the preceding figures is arranged between two pivot arms (61). After preparing the eineachsten stock paper web roll (50), the pivot arms (61) in an initial position - outside the working range of the roll changer (60) - are pivoted.

Figures 13, 14 and 15 show preparatory stations (65, 67, 68) which are provided for non-aligned stock paper web rolls (50) and are preferably placed near an unpacking station. The preparation station (65) shown in Fig. 13 is designed in gantry design and the guide parts of the applicator (30) are arranged between raisable and lowerable carriers (66).

The preparation stations (67, 68) according to FIGS. 14 and 15 are each equipped with pivoting arms (61) - as described with reference to FIG. 12 - and designed once in a stand construction (67) and as a ceiling construction (68).

All of these variants can be operated manually, partially or fully automatically.

In a fully automatic embodiment, the cross-beam is lowered automatically with the applicator by the pivot arms (61) until it rests on the paper roll (50). The beginning of the reel on the paper roll (50) hangs at a specified distance below the traverse and is pneumatically sucked in by another automatically mounted traverse. The thus detected roll beginning is wound up and stretched when swinging back this traverse on the cutting bar. After generating the paper web start and the order of the adhesive tape, the pivot arms (61) are pivoted back to their original position. To dispose of the cut-off roll beginning a metal plate can be arranged, via which the beginning of the roll is guided into a waste container. For this purpose, the beginning of the roll is unwound from the traverse and the vacuum is switched off, so that the excess roll beginning falls on the obliquely arranged metal plate.

On a semi-automatic version, the device must be lowered by pressing the button on the paper roll and the beginning of the roll manually placed over the cutter bar. By activating a squeegee, the beginning of the roll is stretched over the cutter bar and by starting the applicator, the automatic adhesive tape application runs off.

For the linear movement of the applicator parallel to the axis of the paper roll, a toothed belt can be provided, which rotates between the two ends of the linear guide and is connected to the applicator. As a drive for the timing belt, a correspondingly driven electric motor can be provided.

It may be particularly advantageous to provide a drive for the adhesive tape as well as the application rollers, whereby a slip and frictionless application of adhesive tape is possible. For this purpose, a rack can be arranged on the linear guide or on the cross-beam with which a - on the applicator rotatably mounted - gear interacts and converts the linear movement of the applicator in a rotational movement. The gearwheel is coupled to a drive disk (100: FIG. 4a) via a shiftable clutch, preferably an electronically controllable magnetic clutch. As is apparent from Fig. 4a, the drive pulley (100) by a toothed belt (101) is wrapped, which is guided over other pulleys (103, 105, 106) and over pulleys (102, 104) back to the drive pulley (100). On the shaft of a pulley (106), a further pulley is arranged, which drives the application roller (39) via a further belt drive (42). The both sides of the application roller (39) arranged sliders (38) can be made in a particularly advantageous manner in each case by pneumatic cylinder to the paper web roll, resulting in each stroke position of the applicator an advantageous constant contact pressure. When applying the adhesive tape, the application roller (39) and the sliders (38) adapt to the paper surface by corresponding strokes. During these strokes, the pulley (106) and pulley (104) move up or down, while the other pulleys (100, 103, 105) and pulley (102) remain stationary. As a result, the looping length of the toothed belt (101) remains the same for each stroke movement and the transmission of the drive torque is always ensured safely.

So that the application unit can automatically align with the axis of the paper web roll and the adhesive tape is uniformly pressed over its width, the application device (30) can be rotatably mounted about an axis of rotation parallel to the paper roll axis. For adapting to the surface of the paper web roll a few degrees of angular rotation suffice. The applicator (30) can be resiliently held in a central position.

The toothed belt-driven holder (36) for the wastepaper roll and the holder for the roll of adhesive tape are equipped with adjustable brakes - preferably disc-mounted disk springs. On the bracket (36) may additionally be another brake - for example, a pneumatic brake - are provided. This can be prevented that the adhesive tape is withdrawn after lifting from a paper web roll and when reconnecting to another paper web roll on the applicator roll (39).

For actuating the cutting blade (40) for cutting off the applied adhesive tape, a so-called multi-position cylinder (107) can be provided. This can be controlled so that it can put the cutting blade (40) as required in a rest position or in a pre-positioning - with resting on the tape sliding plate (29) - and can perform a working stroke for cutting the tape. Even with the fully or semi-automatic versions of the device, the adhesive tape can be applied with or without protective layer on paper web rolls. The pulleys coming into contact with the adhesive surfaces are preferably made of adhesive-repellent materials.

LIST OF REFERENCE NUMBERS

1

dare

2

frame

3

wheel

4

frame

5

screw

6

handwheel

7

flanged bushing

10

linear unit

11

guide rail

12

attack

12 '

attack

13

crossbeam

14

side plate

15

alignment

16

tensioning device

17

strap

18

carrier

19

clamper

20, 20 '

retaining hole

21

elbow

22

Stripper plate

23

sheet

29

sliding plate

30

applicator

31

body

32

sliding piece

33

guide

34

eccentric

35

Bracket (adhesive tape)

36

Bracket (protective tape)

37

application unit

38

slide

39

application roller

40

cutting blade

41

Paper cutter

42

belt drive

43

clamping ring

44

leadership

45

tape roll

46

leadership

47

leadership

48

leadership

49

pivoting lever

50, 50 '

Spare paper web roll

51

role beginning

52

Einachsloch

53

Paper web start

54

paper web

55

Second paper layer

60

reelstands

61

swivel arm

65, 67, 68

preparation station

66

carrier

80

duct tape

81

Protective / separating band

82

slot

83

adhesive

84

carrier

85

adhesive

86

carrier

87

adhesive

88

Protective / separating band

90

duct tape

91

Protective / separating band

92

adhesive

93

carrier

94

adhesive

95

carrier

96

adhesive

97

Protective / separating band

100

sheave

101

toothed belt

102

idler pulley

103

pulley

104

idler pulley

105

pulley

106

pulley

107

Multi-position cylinder

Claims (20)

Device for preparing a stock paper web roll for flying reel change with a linear unit (10) on which a crossbeam (13) and a guide rail (11) are provided, on which a coating device (30) parallel or inclined to the axis of the stock paper web roll (50) displaceable is on a base body (31) of the applicator (30) relative to the base body (31) displaceable sliding piece (32) is provided, on which a holder (35) for unwinding a roll of adhesive tape (45) and a further support (36) Winding a protective tape (81, 91), an application unit (37) with sliders (38), at least one application roller (39) and a cutting knife (40) for the adhesive tape (80, 90) and / or protective tape (81, 91) and a paper cutting knife (41) are arranged. Apparatus according to claim 1, characterized in that the sliding piece (32) in guides (33) is guided and by a - rotatably mounted in the base body (31) - eccentric (34) which engages in a recess of the sliding piece (32) in an order and in an interface position for the adhesive tape (80, 90) and in a position for cutting the predetermined paper web start (53) can be positioned. Device according to one of the preceding claims, characterized in that the adhesive tape (80, 90) is pressed in the order position of the sliding piece (32) through the applying roller (39) to the paper web feed reel (50) and the paper web surface of the side of the application roller (39) by resilient sliders (38) is held down, wherein the application roller (39) when rolling on the supply paper web roll (50) - locked against backward - holder (36) for winding the protective tape (81, 91) via a belt drive and drives the entire width of Schutzbarides (81, 91) or only a partial strip (81a) on a slotted clamping ring (43) can be wound. Device according to one of the preceding claims, characterized in that on the cutting blade (40) a resiliently movable sliding plate (29) is provided, which presses the adhesive tape (80, 90) during the cutting process on the paper surface. Device according to one of the preceding claims, characterized in that in the position of the sliding piece (32) for cutting the paper web start, the paper cutting knife (41) in a longitudinal slot of the cross-beam (13) is rotatable and the predetermined paper web start (53) can be generated. Device according to one or more of the preceding claims, characterized in that for the manual operation with the right and left hand each in the working direction mirror images of each other constructed applicators (30) are provided. Device according to one or more of the preceding claims, characterized in that the sliders (38) consist of polytetrafluoroethylene and adhesive-repellent guide rollers (44, 46, 47, 48) for the adhesive / guard band guide and a separate drive for the holder (36) of the protective band (36). 81, 91) are provided. Device according to one or more of the preceding claims, characterized in that the contact surface of the application roller (39) is excluded in the middle region, so that it presses the adhesive tape (80, 90) only with its two outer regions and the application of adhesive tape (80, 90) is possible on stock paper web rolls (50) with different roll diameters. Device according to one or more of the preceding claims, characterized in that the linear unit (10) is at least as wide as the stock paper web roll (50) at both ends with side plates (14), each about an axis parallel to the direction of movement of the applicator device (50). 30) are rotatable and on a height adjustment device (5) can be fixed and on the guide rail (11) stops (12, 12 ') positionable are, by which the applicator (30) is lockable at the adhesive beginning and at the adhesive end. Device according to one or more of the preceding claims, characterized in that the stops (12) release the return movement of the applicator (30) to its initial position by spring-back. Device according to one or more of the preceding claims, characterized in that alignment marks (15) are provided on the linear unit (10), by means of which the orientation of the application device (30) towards the center is determined by the crosspiece (13) resting on the supply paper web roll (50) the stock paper web roll (50) is adjustable. Device according to one or more of the preceding claims, characterized in that the linear unit (10) is arranged on a carriage (1) or stationary on a reel changer (60). Device according to one or more of the preceding claims, characterized in that the carriage (1) by means of steerable and biockable wheels (3) with respect to the supply paper web roll (50) can be positioned and fixed and on its frames (4) threaded spindles (5) are mounted, which as height adjustment with the side plates (14) of the linear unit (10) cooperate. Device according to one or more of the preceding claims, characterized in that for fixing - on a carriage (1) arranged - linear unit (10) with respect to the supply paper web roll (50) clamping devices (16) for clamping and clamping clamping bands (17) are provided. Device according to one or more of the preceding claims, characterized in that for all moving parts. Drives are provided and coordinated by a control unit are controlled. Device according to one of the preceding claims, characterized in that for detecting the beginning of the roll (51) on the stock paper web roll (50, 50 ') auflegbare traverse is provided, with which the paper web for generating the paper web start (53) can be tensioned via a cutter bar. Device according to one of the preceding claims, characterized in that as drive for the linear movement of the applicator (30) parallel to the axis of the supply paper web roll (50, 50 ') a toothed belt is provided which rotates between the two ends of the linear unit (10) and with the applicator (30) is connected and is provided as a drive for the toothed belt, a controllable electric motor. Device according to one of the preceding claims, characterized in that on the linear unit (10) a rack is provided, with which a - at the applicator (30) rotatably mounted - gear cooperates, whereby the linear movement of the applicator (30) is convertible into a rotational movement and the gear is coupled via a switchable coupling with a drive pulley (100) through which the application roller (39) and the holder (36) for the guard band can be driven via a toothed belt (101). Device according to one of the preceding claims, characterized in that a multi-position cylinder (107) is provided for actuating the cutting blade (40) with which the cutting blade (40) in a rest position or in a pre-position - with surface-mounted on the tape sliding plate (29) - Can be positioned and a working stroke for cutting the applied adhesive tape is executable. Device according to one of the preceding claims, characterized in that for the employment of the sliders (38) are provided on the paper web roll pneumatic cylinder.

Images