EP3741550A1 - Assembly - Google Patents

Abstract

One arrangement comprises a device (1) for producing a web of corrugated cardboard laminated on one side from a first and second web of material (5, 10, 14, 17). The device (1) for producing a web of corrugated cardboard laminated on one side comprises a corrugating device (21) for corrugating the first material web (5, 10) to form a corrugated web and a pressing device (28) for pressing the glued corrugated web (5, 10) and second material web (14, 17) together. The arrangement further comprises a first transverse position detection device (51) arranged upstream of the corrugating device (21) for detecting the first material web (5, 10), a second transverse position detection device (52) arranged upstream of the pressing device (28) for detecting the second material web (14) , 17) and a signal processing unit (53) which, if a transverse deviation is detected between the material web (5, 10, 14, 17) based on the transverse position signals, is capable of a second unwinding device (4) for unrolling the second material web (14, 17) to be operated in such a way that the second material web (14, 17) in the device (1) for producing a single-sided laminated corrugated cardboard web is displaced accordingly in the transverse direction.

Description

The content of the German patent application DE 10 2019 207 589.4 is incorporated herein by reference.

The invention relates to an arrangement which, in particular, is part of a corrugated cardboard plant. Furthermore, the invention is directed to a corrugated cardboard plant with at least one such arrangement. The invention is also directed to a corresponding method.

It is generally known through prior public use that in an arrangement with a device for producing a single-sided laminated corrugated cardboard web and this upstream material web unwinding devices, the material webs used in the device for producing a single-sided laminated corrugated cardboard web must be aligned one after the other with respect to their center in order to achieve an economical and to allow resource-saving production of the one-sided laminated corrugated cardboard web. Usually, the material web to be corrugated is first placed on a corrugated roller and aligned with respect to it. The other material web is then positioned centrally to the material web to be corrugated. The positioning usually takes place manually on the unwinding devices. The checking of the correct positioning of the material webs with respect to one another by means of an operator, however, takes place in the device for producing a web of corrugated cardboard laminated on one side. This procedure has proven itself in practice. However, this is associated with a not inconsiderable amount of work. This also requires experience and skill.

The invention is based on the object of creating an arrangement which overcomes the disadvantages of the prior art. In particular, an arrangement is to be provided which is particularly user-friendly and economical. A corresponding corrugated cardboard plant and a corresponding process are also to be supplied.

This object is achieved according to the invention by the features specified in the main claims 1, 11 and 12. The essence of the invention lies in the use of transverse position detection devices, which are arranged upstream of the corrugating device or pressing device and, for example in the production operation of the arrangement or when it is started, detect the transverse positions of the material webs. The transverse position detection devices are preferably arranged downstream of the unwinding devices or their respective connecting arrangements. The signal processing unit processes the transverse position signals of the transverse position detection devices that correlate with the transverse positions of the material webs. If a deviation from or beyond a setpoint value (interval) is detected, the signal processing unit causes the second material web to be shifted in its transverse direction in the device for producing a single-sided laminated corrugated cardboard web, so that there is the transverse deviation between the first material web and the second material web is reduced or becomes zero. The signal processing unit is able to move the second web of material in the device for producing a web of corrugated cardboard laminated on one side, if necessary from its actual position or position into its desired position or position.

The second unwinding device is able, for example, to influence the second material web in such a way as to shift it or in its transverse direction to deflect that it is shifted accordingly in the device for producing a web of corrugated cardboard laminated on one side. It is expedient if for this purpose a corresponding adjustment of the second material web and / or the at least one second material web roll takes place in the device for producing a web of corrugated cardboard laminated on one side. For this purpose, at least one device of the second unwinding device can preferably be correspondingly displaced. For example, when the second material web is displaced transversely in the device for producing a one-sided laminated corrugated cardboard web, it is displaced along at least one roller, such as a corrugated roller, glue application roller and / or pressure roller, of the device for producing a one-sided laminated corrugated cardboard web.

The second unwinding device unrolls the second material web according to a target specification such that it can be connected in the device for producing a one-sided laminated corrugated cardboard web, for example, essentially congruently with the first material web or centrally with it with respect to its transverse direction. The material webs then have no transverse deviation or a transverse deviation from one another which lies within a nominal value. Subsequent edge trimming of a corrugated cardboard sheet laminated on both sides can thus be minimized or completely superfluous.

The corrugating device expediently comprises a first corrugating roller and a second corrugating roller arranged adjacent to it, which form a corrugating gap for passing through and corrugating the first material web. The axes of rotation or longitudinal center axes of the corrugated rollers preferably run parallel to one another. The first and / or second corrugated roller can preferably be heated.

The glue application device preferably has a glue container and a glue application roller. It is useful if the glue application roller forms a glue gap with the first corrugated roller for leading through and applying glue to the corrugated sheet. It is advantageous if the glue application roller applies the glue located in the glue container to tips of the corrugation of the corrugated sheet. The glue application device is arranged downstream of the corrugating device in the conveying direction of the corrugated sheet.

The pressing device is preferably designed as a pressing belt device which advantageously has at least two pressing belt deflecting rollers and an endless pressing belt guided around the pressing belt deflecting rollers. The pressure belt preferably presses against the second material web, which in turn is pressed against the endless corrugated web, which is provided with glue and rests on the first corrugated roller. The pressing device is arranged downstream of the corrugating device in the conveying direction of the corrugated sheet.

It is expedient if the first transverse position detection device operates without contact. It is preferably able to detect the current position or the current course of the first material web in its transverse direction, preferably continuously. The first transverse position detection device is able, for example, to directly detect a position or a course of at least one outer side or longitudinal edge or edge of the first material web. The first transverse position detection device is designed, for example, as a light grid, sensor, camera, ultrasound detection device or infrared detection device.

The second transverse position detection device is advantageously designed like the first transverse position detection device. It is useful if the second transverse position detection device works without contact. It is preferably able to detect the current position or the current course of the second material web in its transverse direction, preferably continuously. The second transverse position detection device is able, for example, to directly detect a position or a course of at least one outer side or longitudinal edge or edge of the second material web. The second transverse position detection device is designed, for example, as a light grid, sensor, camera, ultrasound detection device or infrared detection device.

The transverse position signals are preferably electrical signals.

The signal processing unit is preferably an electrical, more preferably electronic, signal processing unit. It is designed, for example, as a control and / or regulating unit.

The signal connection between the first transverse position detection device and the signal processing unit is preferably wireless or wired. The signal connection between the second transverse position detection device and the signal processing unit is expediently wireless or wired. The signal connection between the second unwinding device and the signal processing unit is also preferably wireless or wired.

The arrangement is preferably part of a corrugated cardboard plant. A corrugated cardboard web laminated on both sides can preferably be produced from the web of corrugated cardboard laminated on one side.

Further advantageous configurations of the invention are specified in the subclaims.

The arrangement according to dependent claim 2 is extremely reliable.

The arrangement according to dependent claim 3 also results in a particularly functionally reliable arrangement.

The arrangement according to dependent claim 4 is extremely economical. The first material web is also advantageously endless. It is useful if the web of corrugated cardboard laminated on one side is also endless.

It is advantageous if the second unwinding device comprises two unwinding devices for unrolling two finite second material webs from two second material web rolls. The second unwinding device advantageously has a connecting arrangement for connecting the finite second material webs to form an endless second material web. It is advantageous if the connection arrangement comprises a first preparation unit, a second preparation unit, a first connection unit for connecting a web end of a finite second material web to a web beginning of the other finite second material web and a table device for interacting with the preparation units and the connection units.

It is useful if the at least one receiving device according to dependent claim 5 comprises at least one receiving part or holding part, such as rod, mandrel, cone or the like, which preferably at least engages in a central opening of the at least one second roll of material web. It is advantageous if the at least one receiving device can be displaced transversely from its basic position or neutral position and / or, for example, about a vertical pivot axis, can be tilted or tilted. In the basic position of the at least one receiving device, the second unwinding device unrolls the second material web normally. A corresponding displacement, such as shifting or tilting, of the at least one deflection roller from the basic position with respect to the second material web leads to a change in the direction of the second material web in its transverse direction.

The material web storage trolley according to dependent claim 6 enables the second material web to be conveyed without interruption. For this purpose, it is preferably displaceable along a material web storage trolley path or guide. Furthermore, the material web storage trolley is at least partially transversely displaceable from its basic position or neutral position and / or, for example, about a vertical pivot axis, tiltable or pivotable or tiltable. The material web storage trolley preferably has at least one deflection roller for deflecting the second material web. The at least one deflection roller can in particular be displaced transversely from a basic position or neutral position and / or, for example, about a vertical swivel axis, can be tilted or swiveled or tilted. A corresponding displacement, such as shifting or tilting, of the at least one deflection roller from the basic position with respect to the second material web leads to a change in the direction of the second material web in its transverse direction. According to dependent claim 7, as regulated, the signal processing unit optionally adjusts the second material web in its transverse position after the first transverse position of the first material web. The first material web thus advantageously forms a master material web, while the second material web preferably forms a slave material web. Similarly, the first unwinding device preferably forms a master unwinding device, while the second unwinding device preferably forms a slave unwinding device. A reverse configuration is alternatively possible.

The corrugated roller according to dependent claim 8 is extremely reliable and also has a particularly long service life. It is useful if the outer or outer grooves are in flow connection with at least one vacuum source, so that the first material web is held on the corrugated roller and lies neatly in depressions whose corrugation. Outer grooves are preferably arranged at a distance from one another along the corrugated roller. These outer grooves of the corrugated roller preferably run uniformly spaced from one another. The outer grooves are preferably open radially outward. They run at least in some areas around a longitudinal center axis of the corrugated roller and preferably have a uniform width. They preferably cut, for example vertically or at an angle, a corrugation of this corrugated roller, which preferably has corrugated teeth and corrugated valleys alternating. The outer grooves are preferably designed as annular grooves. They preferably form suction grooves. It is advantageous if the signal processing unit knows the course or the position of the outer grooves, in particular their position in relation to a longitudinal extent, of the corrugated roller used. For example, for this purpose the signal processing unit accesses a database or, for example, external data on the corrugating roller. Preferred is the position of outer grooves are read out of a corrugating roller cassette carrying the at least one corrugating roller. This alignment of the first material web with respect to the corrugated roller takes place in particular when the arrangement is started up. It is preferred to keep it in production. Both side edges of the first material web are then preferably arranged at a distance from the outer grooves. The spaced-apart arrangement of the side or longitudinal edge (s) of the first material web, in particular laterally or in the longitudinal direction of the corrugating roller, to the outer grooves of the corrugating roller results in a particularly high-quality one-sided laminated corrugated cardboard web.

The arrangement according to dependent claim 9 is particularly reliable. The center of the first material web in relation to its transverse direction is preferably located between mutually opposite longitudinal or side edges of the first material web. The center of the second material web in relation to its transverse direction is preferably located between mutually opposite longitudinal or side edges of the second material web. There is preferably a central control. If a transverse deviation is found, the difference is above a maximum nominal value.

The arrangement according to dependent claim 10 is particularly user-friendly. A manual adjustment of the at least one glue dam along a glue application roller is no longer necessary. If the transverse deviation of the first and / or second material web is determined, the at least one glue dam is preferably adjusted or readjusted as a function of the transverse deviation.

The subclaims 2 to 10 also relate to preferred developments of the independent claim 12.

The terms “upstream”, “downstream”, “upstream”, “downstream” or the like used here relate in particular to the conveying direction of the respective material web. The transverse direction of the respective material web is oriented in particular perpendicular to its conveying direction. It preferably extends over a width of the material web and can also be referred to as the width direction of the material web. The transverse direction runs perpendicular to the opposing longitudinal or side edges of the respective material web.

Fig. 1

eine vereinfachte Seitenansicht einer erfindungsgemäßen Anordnung,

Fig. 2

eine perspektivische detaillierte Ansicht eines unteren Teils einer in Fig. 1 in der Gesamtheit veranschaulichten Spleißvorrichtung, und

Fig. 3

eine vereinfachte Teilansicht der in Fig. 1 gezeigten Vorrichtung zum Herstellen einer einseitig kaschierten Wellpappebahn, die die Anordnung der Materialbahnen in der Vorrichtung zum Herstellen einer einseitig kaschierten Wellpappebahn und der Leimdämme veranschaulicht

A preferred embodiment of the invention is described below by way of example with reference to the accompanying drawing. Show:

Fig. 1

a simplified side view of an arrangement according to the invention,

Fig. 2

a perspective detailed view of a lower part of a FIG Fig. 1 Splicing apparatus illustrated in its entirety, and

Fig. 3

a simplified partial view of the in Fig. 1 Device shown for producing a single-sided laminated corrugated cardboard web, which illustrates the arrangement of the material webs in the device for producing a single-sided laminated corrugated cardboard web and the glue dams

First, referring to Fig. 1 , comprises a corrugated cardboard plant (not shown in its entirety) a device 1 for producing a one-sided laminated, endless corrugated cardboard web, which is capable of producing a one-sided laminated, endless corrugated cardboard web 2.

The device 1 for producing an endless corrugated cardboard web laminated on one side is arranged upstream of an intermediate web splicing device 3 and a cover web splicing device 4.

The intermediate web splicing device 3 comprises a first unwinding device 7 for unwinding a finite first intermediate web 5 from a first intermediate web roll 6 and a second unwinding device 9 for unrolling a finite second intermediate web from a second intermediate web roll 8. The finite first intermediate web 5 and the finite second intermediate web are to provide an endless intermediate web 10 connected to one another by means of a connecting and cutting arrangement 11 of the intermediate web splicing device 3. The intermediate web 5, 10 forms a first material web.

The cover web splicing device 4 is designed in accordance with the intermediate web splicing device 3. This comprises a third unwinding device 13 for unrolling a finite first cover web from a first cover web roll 12 and a fourth unwinding device 16 for unrolling a finite second cover web 14 from a second cover web roll 15. The finite first cover web and the finite second cover web 14 are used to provide an endless one Cover sheet 17 connected to one another by means of a connecting and cutting arrangement 18 of the cover sheet splicing device 4. The cover sheet 14, 17 forms a second sheet of material.

The endless intermediate web 10 is over a deflection roller 19 in a first conveying direction 33 of the device 1 for producing a one-sided laminated, endless corrugated cardboard web, while the endless cover web 17 is fed via a heating device 20 in a second conveying direction 34 of the device 1 for producing a single-sided laminated, endless corrugated cardboard web.

The device 1 for producing an endless web of corrugated cardboard laminated on one side comprises a corrugating device 21 with a first corrugating roller 22 and a second corrugating roller 23 for producing a corrugated, endless corrugated sheet from the endless intermediate sheet 10. The corrugating rollers 22, 23 are arranged adjacent to one another. They form a corrugated gap for passing through and corrugating the endless intermediate web 10. The corrugated rollers 22, 23 are rotatably or rotatably mounted. The axes of rotation of the corrugating rollers 22, 23 run parallel to one another.

To connect the endless cover web 17 with the endless corrugated intermediate web or corrugated web 10 to form the one-sided, endless corrugated cardboard web 2, the device 1 for producing a one-sided laminated, endless corrugated cardboard web has a glue application device 24, which advantageously has a glue application roller 25, a glue metering roller 26 and a glue container 27 comprises. In order to pass through and apply glue to the endless corrugated web 10, the glue application roller 25 forms a glue gap with the first corrugated roller 22. The glue located in the glue container is applied to the tips of the corrugation of the endless corrugated web 10 via the glue application roller 25. The glue metering roller 26 rests against the glue application roller 25 and serves to form a uniform glue layer on the glue application roller 25.

The smooth, endless cover sheet 17 is then joined together with the endless corrugated sheet 10 provided with glue from the glue container 27 in the device 1 for producing an endless sheet of corrugated cardboard laminated on one side. To press the endless cover sheet 17 against the glue-provided, endless corrugated sheet 10, which in turn rests against the first corrugated roller 22 in some areas, the device 1 for producing an endless corrugated cardboard sheet laminated on one side has a pressure belt device 28. The pressure belt device 28 is above the first corrugated roller 22 arranged. It has at least two pressure belt deflection rollers 29 arranged at a distance from one another and an endless pressure belt 30 which is guided around the pressure belt deflection rollers 29. The first corrugated roller 22 engages in a space between the pressure belt deflection rollers 29 in areas from below, as a result of which the pressure belt 30 is deflected by the first corrugated roller 22. The pressure belt 30 presses against the endless cover web 17, which in turn is pressed against the endless corrugated web 10 provided with glue and resting on the first corrugated roller 22.

For the intermediate storage and buffering of the endless corrugated cardboard web 2 laminated on one side, it is fed via an upward transport device 31 to a storage device 32 of the corrugated cardboard plant, where it forms loops.

The corrugated cardboard installation also comprises a lamination web splicing device (not shown) which is designed in accordance with the intermediate web splicing device 3 or cover web splicing device 4. The liner splicer is capable of producing an endless liner.

Downstream of the storage device 32 and the laminating web splicing device, the corrugated board installation has a preheating device (not shown) with two preheating rollers arranged one above the other. The preheating device is fed with the endless corrugated cardboard web 2 laminated on one side and the endless laminating web, which wrap around the circumference of the respective preheating roller in areas.

Downstream of the preheating device, the corrugated board machine has a gluing unit (not shown) with a glue roller that is partially immersed in a glue bath. A glue metering roller rests against the gluing roller in order to form a uniform layer of glue on the gluing roller. The endless corrugated cardboard web 2 laminated on one side is in contact with its corrugated web 10 with the glue roller, so that the corrugation of this corrugated web 10 is provided with glue from the glue bath.

Downstream of the gluing unit, the corrugated cardboard system has a heating / pressing device (not shown) which comprises a horizontally extending heating table. An endless pressure belt, which is guided around guide rollers, is arranged adjacent to the heating table. A pressure gap is formed between the pressure belt and the heating table, through which the one-sided, endless corrugated cardboard web 2 and the endless lamination web are guided to form an endless, three-layer corrugated cardboard web. The endless corrugated web or intermediate web 10 is located between the endless cover web 17 and the endless laminating web.

Downstream of the heating and pressing device, the corrugated cardboard plant has a longitudinal cutting / creasing device (not shown) for longitudinal cutting and creasing of the endless, three-ply corrugated cardboard web. In the longitudinal cutting / creasing device are made from the endless, three-layer corrugated cardboard web endless partial tracks can be generated, which initially run next to each other.

Downstream of the longitudinal cutting / creasing device, the corrugated cardboard system has a switch (not shown) in order to convey the partial webs into different levels.

Downstream of the switch, the corrugated cardboard plant has a cross-cutting device (not shown) with cross-cutting devices arranged one above the other. The cross-cutting devices produce sheets of corrugated cardboard from the partial webs.

Downstream of the cross cutting devices, the corrugated cardboard machine has a stacking device (not shown) which stacks the corrugated cardboard sheets.

In the following, also with reference to Fig. 2 , the cover sheet splicer 4 described in more detail. The intermediate web splicing device 3 is, for example, of identical design.

The cover web splicing device 4 has a base frame 35 with two base frame sockets 36, two base frame stands 37 and two base frame supports 38. The base frame pedestals 36 are fastened to a floor or underground. A base frame stand 37 is arranged on each base frame base 36. Each base frame stand 37 extends vertically or perpendicularly to the floor. Each base frame support 38 is arranged at an end of the base frame stand 37 opposite the associated base frame base 36 and runs parallel to the floor. The base frame supports 38 carry a splicing device of the cover web splicing device 4.

An elongated first support arrangement 39 is mounted on the base frame pedestals 36. The first support arrangement 39 extends between the base frame pedestals 36 and perpendicular to a longitudinal extension of the corrugated cardboard plant. It carries the third unwinding device 13 and runs horizontally. The first support assembly 39 is essentially cylindrical.

The third unwinding device 13 has two first support arms 40, which are arranged along the first support arrangement 39 and each carry a first receiving part 41. According to Fig. 1 the first receiving parts 41 are guided into a central opening of the first cover web roll 12 and rotatably mounted. They engage the first cover web roll 12 from the two end faces and form a first receiving device. A longitudinal center axis of the first cover web roll 12 runs parallel to the first support arrangement 39.

The first support arms 40 can be displaced relative to one another along the first support arrangement 39 so that first cover web rolls 12 of different widths can be accommodated. For this purpose, the cover web splicing device 4 has a first piston-cylinder unit 42, the length of which can be changed and which is connected to the first support arms 40. The first piston-cylinder unit 42 preferably works hydraulically. The first support arms 40 are also uniformly displaceable along the first support arrangement 39, which leads to a displacement of the first cover web roll 12 along its longitudinal center axis or the finite first cover web unrolled therefrom in its transverse direction. The first support arms 40 are jointly pivotable about the first support arrangement 39, which defines a horizontally extending pivot axis. Such pivoting takes place, for example, when the first cover web roll 12 is picked up or dispensed. The first support arms 40 are also relative to the first support arrangement 39 pivotable relative to one another, which enables tilting of the first cover web roller 12 and thus a deflection of the finite first cover web or endless cover web 17 in its transverse direction.

An elongated second support arrangement 43 is also mounted on the base frame pedestals 36. The second support arrangement 43 extends between the base frame sockets 36 and perpendicular to a longitudinal extension of the corrugated cardboard plant. It runs parallel to the first support arrangement 39. It supports the fourth unwinding device 16 and runs horizontally. The third unwinding device 13 and fourth unwinding device 13, 16 are arranged opposite one another relative to the base frame carrier 38. The second support assembly 43 is substantially cylindrical.

The fourth unwinding device 16 has two second support arms 44, which are arranged along the second support arrangement 43 and each carry a second receiving part 45. According to Fig. 1 the second receiving parts 45 are guided into a central opening of the second cover web roll 15 and rotatably mounted. They engage from the two end faces in the second cover web roll 15 and form a second receiving device. A longitudinal center axis of the second cover web roll 15 runs parallel to the second support arrangement 43.

The second support arms 44 can be displaced relative to one another along the second support arrangement 43 so that second cover web rolls 15 of different widths can be accommodated. For this purpose, the cover web splicing device 4 has a second piston-cylinder unit 46, the length of which can be changed and which is connected to the second support arms 44. The second piston-cylinder unit 46 preferably operates hydraulically. The second support arms 44 are also common along the second support assembly 43 uniformly displaceable, which leads to a displacement of the second cover web roll 15 along its longitudinal center axis or the finite second cover web unrolled therefrom in its transverse direction. The second support arms 44 are jointly pivotable about the second support arrangement 43, which defines a horizontally extending pivot axis. Such a pivoting takes place, for example, when the second cover web roll 15 is picked up or released. The second support arms 44 are also pivotable about the second support arrangement 43 relative to one another, which tilts the second cover web roll 15 and thus a deflection of the finite second cover web 14 or endless cover web 17 in their transverse direction.

The finite first cover sheet and the finite second cover sheet 14 are guided from the respective cover sheet roll 12 or 15 into the splicing device of the cover sheet splicing device 4.

According to Fig. 1 the finite second cover sheet 14, which just forms the endless cover sheet 17, is passed through the cutting and connecting arrangement 18 and guided to one of these downstream cover sheet storage trolleys 47, which comprises at least one deflection roller 48 for deflecting the endless cover sheet 17 and along a guide 49 can be displaced for generating or dissolving loops of the endless cover web 17. The guide 49 extends parallel to the floor and thus horizontally. The at least one deflection roller 48 can be tilted along the guide 49 or in the plane thereof. In its basic position, the at least one deflection roller 48 runs perpendicular to the conveying direction 34 of the endless cover web 17. With regard to a possible adjustment of the at least one deflection roller 48 and an advantageous, precise structure of the cover web splicing device 4 and their preferred function are exemplified on the DE 10 2014 207 050 A1 ( US 2015/0291380 A1 ) referenced.

The finite first cover sheet is preferably retained in the cutting and joining assembly 18 for later use.

A cover sheet outlet 50 of the cover sheet splicing device 4 is arranged downstream of the cover sheet storage trolley 47.

As Fig. 3 shows, the first corrugating roller 22 has a plurality of annular grooves 54 which are arranged along the first corrugating roller 22 at a distance from one another and extend around the longitudinal center axis of the first corrugating roller 22. They are open to the outside and endless. The annular grooves 54 run in planes which run perpendicular to the longitudinal center axis of the first corrugated roller 22. The second corrugated roller 23 preferably has no annular grooves.

The glue application device 24 has two glue dams 55 which lie tightly against the first corrugated roller 22 and run perpendicular to it. They can be moved along the first corrugated roller 22. The glue dams 55 can be uniformly displaced relative to one another or also together.

The endless intermediate web 10 is assigned a first transverse position detection device 51, which is arranged between the intermediate web splicing device 3 and the device 1 for producing a single-sided, endless corrugated cardboard web, more precisely between the intermediate web splicing device 3 and the deflecting roller 19. The first transverse position detection device 51 is in the conveying direction 33 of the endless intermediate track 10 thus an intermediate track outlet Intermediate splice device 3 downstream. It is arranged upstream of the endless intermediate track 10 of the corrugating device 23 in the conveying direction 33.

The endless cover web 17 is assigned a second transverse position detection device 52, which is arranged between the heating device 20 and the pressure belt device 28 of the device 1 for producing an endless web of corrugated cardboard laminated on one side. The second transverse position detection device 52 is thus arranged downstream of the cover web splicing device 4 or its cover web outlet 50 in the conveying direction 34 of the endless cover web 34. It is arranged upstream of the pressure belt device 28 in the conveying direction 34 of the endless cover web 34.

The first transverse position detection device 51 and the second transverse position detection device 52 are in signal connection with a signal processing unit 53. The signal processing unit 53 receives signals from the transverse position detection devices 51, 52 which relate to the respective current transverse position of the endless intermediate web 10 and cover web 17. It knows the position of the annular grooves 54 of the first corrugating roller 22. Preferably, the signal processing unit 53 also knows the length of the endless intermediate web 10 between the intermediate web splicing device 3 and the first transverse position detection device 51. It preferably also knows the length of the endless intermediate web 10 between the first transverse position detection device 51 and the device 1 for producing a one-sided laminated, endless corrugated cardboard web. The signal processing unit 53 preferably also knows the length of the endless cover web 17 between the cover web splicing device 4 and the second transverse position detection device 52. It preferably also knows this Length of the endless cover web 17 between the second transverse position detection device 52 and the device 1 for producing an endless web of corrugated cardboard laminated on one side.

The signal processing unit 53 evaluates the transverse positions of the endless intermediate web 10 and cover web 17 relative to one another, which are detected by the first transverse position detection device 51 and second transverse position detection device 52. To determine a transverse deviation or a lateral offset of the endless intermediate web 10 and the endless cover web 17 to one another, it calculates a difference between a center of the endless intermediate web 10 and the endless cover web 17 with respect to the transverse direction.

The signal processing unit 53 is able to detect a lateral offset of the material webs or the endless intermediate web and cover web 10, 17 with respect to one another. If the signal processing unit 53 detects a discrepancy between an actual value and a target value, a corresponding transverse displacement of the second material web or endless cover web 17 takes place in the device 1 for producing a single-sided, endless corrugated cardboard web, for example along the first corrugated roller 22 and the pressure belt Deflection rollers 29. Depending on the transverse deviation detected, the cover web splicing device 4 is actuated accordingly.

For this purpose, the signal processing unit 53 is in signal connection with the cover web storage carriage 47 and the unwinding devices 13, 16 or with corresponding displacement drives for the corresponding displacement or adjustment thereof. The signal connection can be wireless or wired. Alternatively, there is the signal processing unit 53 with the cover web storage carriage 47 or the unwinding devices 13, 16 or with at least one corresponding displacement drive for the corresponding displacement or adjustment of the cover web storage carriage 47 or the unwinding devices 13, 16 in signal connection. Alternatively or additionally, the signal processing unit 53 is in signal connection with the inter-web splicing device 3, in particular its inter-web storage trolleys and / or unwinding devices 7, 9 or with corresponding displacement drives for the corresponding displacement or adjustment of the same.

The signal processing unit 53 is in signal connection with the glue dams 55 or corresponding displacement drives for displacing the same, which is wireless or wired. If the endless intermediate web 10 is displaced transversely in the device 1 for producing a web of corrugated cardboard laminated on one side, the glue dams 55 are displaced accordingly.

The signal processing unit 53 actuates the first unwinding device 3 initially or for the commissioning of the arrangement in such a way that the two side edges of the endless intermediate web 10 are arranged laterally offset to the annular grooves 54 of the first corrugated roller 22 or offset along the first corrugated roller 22 to the annular grooves 54 .

According to an alternative embodiment, the corrugated cardboard plant is capable of producing a five-layer corrugated cardboard web. Two of the arrangements are then advantageously present.

Claims (13)

Arrangement, comprehensive a) a first unwinding device (3) for unrolling a first material web (5, 10) from at least one first material web roll (6, 8), b) a second unwinding device (4) for unrolling a second material web (14, 17) from at least one second material web roll (12, 15), c) a device (1) for producing a single-sided laminated corrugated cardboard web from the first material web (5, 10) and the second material web (14, 17), the device (1) for producing a single-sided laminated corrugated cardboard web i. a corrugating device (21) for corrugating the first material web (5, 10) to form a corrugated web, ii. a glue application device (24) for applying glue to the corrugated sheet (5, 10), iii. a pressing device (28) for pressing the glued corrugated web (5, 10) and the second material web (14, 17) against one another to form a one-sided laminated corrugated cardboard web (2), and iv. an outlet (50) for the one-sided laminated corrugated cardboard web (2), d) a first transverse position detection device (51) upstream of the corrugating device (21) in the conveying direction (33) of the first material web (5, 10) for detecting a respective first transverse position of the first material web (5, 10) while generating first transverse position signals of the first material web (5, 10), e) a second transverse position detection device (52) upstream of the pressing device (28) in the conveying direction (34) of the second material web (14, 17) for detecting a respective second transverse position of the second material web (14, 17) while generating second transverse position signals of the second web of material (14, 17), and f) a signal processing unit (53) which i. is in signal connection with the first transverse position detection device (51) for receiving the first transverse position signals of the first material web (5, 10), ii. is in signal connection with the second transverse position detection device (52) for receiving the second transverse position signals of the second material web (14, 17), iii. is in signal connection with the second unwinding device (4), and iv. If a transverse deviation is detected between the first material web (5, 10) and the second material web (14, 17) based on the first and second transverse position signals above a target value, the second unwinding device (4) is able to operate in such a way that the second material web (14, 17) in the device (1) for producing a single-sided laminated corrugated cardboard web is displaced in its transverse direction in order to reduce the transverse deviation. Arrangement according to claim 1, characterized in that the first transverse position detection device (51) is arranged upstream of the first material web (5, 10) of the device (1) for producing a single-sided laminated corrugated cardboard web in the conveying direction (33). Arrangement according to claim 1 or 2, characterized in that the second transverse position detection device (52) is arranged upstream in the conveying direction (34) of the second material web (14, 17) of the device (1) for producing a web of corrugated cardboard laminated on one side. Arrangement according to one of the preceding claims, characterized in that the second unwinding device (4) is designed as a splicing device for producing an endless second material web (17). Arrangement according to one of the preceding claims, characterized in that the second unwinding device (4) has at least one receiving device (41, 45) for receiving the at least one second roll of material web (12, 15), the at least one receiving device (41, 45) for Displacement of the second material web (14, 17) in its transverse direction as a function of the transverse deviation in the device (1) for producing a web of corrugated cardboard laminated on one side is displaceable, in particular displaceable and / or tiltable, with respect to a basic position. Arrangement according to one of the preceding claims, characterized in that the second unwinding device (4) has a displaceable material web storage carriage (47) for storing the second material web (14, 17), the material web storage carriage (47) at least partially for displacing the second material web (14, 17) in its transverse direction as a function of the transverse deviation in the device (1) for producing a web of corrugated cardboard laminated on one side is displaceable, in particular displaceable and / or tiltable, with respect to a basic position. Arrangement according to one of the preceding claims, characterized in that the signal processing unit (53) optionally causes an adjustment of the second material web (14, 17) in its second transverse position after the first transverse position of the first material web (5, 10). Arrangement according to one of the preceding claims, characterized in that the signal processing unit (53) is able to operate the first unwinding device (3) in such a way that at least one side edge of the first material web (5, 10) is spaced from outer grooves (54) from at least one corrugating roller (22, 23) of the corrugating device (21) is arranged, the outer grooves (54) of the respective corrugating roller (22, 23) cutting a corrugation of this corrugating roller (22, 23). Arrangement according to one of the preceding claims, characterized in that the signal processing unit (53) for determining the transverse deviation a difference between a center of the first material web (5, 10) with respect to its transverse direction and a center of the second material web (14, 17) with respect to its Calculated transverse direction in the device (1) for producing a web of corrugated cardboard laminated on one side. Arrangement according to one of the preceding claims, characterized in that the glue application device (24) has at least one glue dam (55) for laterally delimiting the gluing of the first material web (5, 10), the signal processing unit in signal connection with at least one glue dam displacement drive and, depending on the determined transverse position of the first material web (5, 10) and / or the second material web (14, 17), possibly causes a displacement of the at least one glue dam (55). Corrugated cardboard plant with at least one arrangement according to one of the preceding claims. A method comprising the steps - Unrolling a first material web (5, 10) from at least one first roll of material web (6, 8) by means of a first unwinding device (3), - Unrolling a second material web (14, 17) from at least one second material web roll (12, 15) by means of a second unwinding device (4), - Production of a single-sided laminated corrugated cardboard web (2) from the first material web (5, 10) and the second material web (14, 17) by means of a device (1) for producing a single-sided laminated corrugated cardboard web, the device (1) for producing a single-sided having laminated corrugated cardboard web - a corrugating device (21) for corrugating the first material web (5, 10) to form a corrugated web, - a glue application device (24) for applying glue to the corrugated sheet (5, 10), - a pressing device (28) for pressing the glued corrugated web (5, 10) and the second material web (14, 17) to form the one-sided laminated corrugated cardboard web (2), and - an outlet (50) for the one-sided laminated corrugated cardboard web (2), - Detection of a respective first transverse position of the first material web (5, 10) while generating first transverse position signals of the first material web (5, 10) by means of a first upstream of the corrugating device (21) in the conveying direction (33) of the first material web (5, 10) Transverse position detection device (51), - Detection of a respective second transverse position of the second material web (14, 17) with generation of second transverse position signals of the second material web (14, 17) by means of a second upstream of the pressing device (28) in the conveying direction (34) of the second material web (14, 17) Transverse position detection means (52), and - Receiving the first transverse position signals of the first material web (5, 10) and the second transverse position signals of the second material web (14, 17) from a signal processing unit (53) which is in signal connection with the second unwinding device (4), and - Actuation of the second unwinding device (4) when a transverse deviation is determined between the first material web (5, 10) and the second material web (14, 17) above a setpoint value based on the first and second transverse position signals in such a way that the second material web (14, 17) in the device (1) for producing a single-sided laminated corrugated cardboard web is shifted in its transverse direction to reduce the transverse deviation. Method according to claim 12, characterized in that the signal processing unit (53) actuates the first unwinding device (3) in such a way that at least one side edge of the first material web (5, 10) is spaced apart from the outer grooves (54) of at least one corrugated roller (22, 23 ) the corrugating device (21) is arranged, the outer Grooves (54) of the respective corrugated roller (22, 23) cut a corrugation of this corrugated roller (22, 23).

Images