Segmented reverse cylinder

Abstract

A counter-cylinder assembly for a transverse cutting device, having a blade cylinder (4) for transversely cutting a material web (47) at least in regions, comprises a counter-cylinder (13) having counter-cylinder segments (15 to 24) that are independently adjustable between an active position and a passive position in order to influence a cross-section (53, 54) in the material web (47).

Description

Technical Field

[0001] This patent application claims the priority of German patent application DE 10 2022 207 528.5, the content of which is incorporated herein by reference.

[0002] The invention relates to a reverse cylinder assembly for a transverse cutting device, having a blade cylinder, for transversely cutting a material web, such as a corrugated cardboard web, at least in an area. The invention also relates to a transverse cutting device for transversely cutting a material web, at least in an area, having a corresponding reverse cylinder assembly. Background Art

[0003] During the manufacture of corrugated board, waste is always generated which has to be cut off. For this purpose, transverse cutting devices are used. Transverse cutting devices are also used to produce partial webs after a format change, which are endless and have different widths depending on the application. Summary of the invention

[0004] The object of the invention is to provide a particularly reliable functioning reversing cylinder assembly. The reversing cylinder assembly is also intended to allow extremely high productivity and production flexibility. A corresponding transverse cutting device will also be provided.

[0005] According to the invention, this object is achieved by the features specified in the main claims 1 and 15. The core of the invention consists in a counter-cylinder having a plurality of counter-cylinder segments, for example between 2 and 10, preferably between 3 and 8. The counter-cylinder is segmented. The counter-cylinder segments are adjustable between an active position or cutting position and a passive position or non-cutting position. In the active position, the respective counter-cylinder segment can cooperate with the blade cylinder in such a way that a respective (partial) cross-section is produced in the material web. In the passive position, by contrast, there is no cutting interaction between the respective counter-cylinder segment and the blade cylinder and thus also no respective (partial) cross-section in the material web. By means of the counter-cylinder assembly, a (partial) cross-section with a predetermined length and / or a predetermined distance to the longitudinal edge of the material web can be produced in the material web. The length of the cross-section is determined by the axial width of the counter-cylinder segments. In order to produce a wide or wider cross-section, the counter-cylinder segments arranged directly side by side can be moved into their active position. The counter-cylinder segments can be adjusted individually or in groups relative to each other. The cross-section to be produced can be formed from several partial cross-sections.

[0006] The reverse cylinder section is preferably adjustable relative to the blade cylinder. For example, its distance from the blade cylinder and / or its angle with the blade cylinder are adjustable. Each reverse cylinder section is preferably hollow.

[0007] It is advantageous if the counter-cylinder segments are structurally identical. These preferably have the same construction. For example, each counter-cylinder segment has an axial extent or width of between 200 mm and 400 mm. It is advantageous if at least the counter-cylinder segment in the active position is brought into rotation or swivel at least during the transverse cutting of the material web. Optionally, for example, the counter-cylinder segments on the edge sides have an axial extent that is different from the counter-cylinder segments arranged between them, for example smaller or larger.

[0008] The blade cylinder preferably carries at least one cutting blade which, when cutting the material web transversely, extends adjacent to the counter-cylinder section and preferably through-going. It is advantageous if the at least one cutting blade extends radially outwards from the blade cylinder base.

[0009] The material web is advantageously endless. It is advantageous if it is multi-layered, for example three-layered, five-layered or seven-layered. Preferably, the material web is transported at least during the transverse cutting in the area.

[0010] Further advantageous embodiments of the invention are disclosed in the dependent claims.

[0011] The common pivot axis according to dependent claim 2 preferably extends in the longitudinal direction of the counter-cylinder or the counter-cylinder segment. For example, the pivot axis extends centrally or eccentrically relative to the counter-cylinder or the counter-cylinder segment. It advantageously extends horizontally. It is advantageous if, during transverse cutting of the material web at least in regions, it extends perpendicularly to the transport direction of the material web.

[0012] The inner roller according to dependent claim 3 ensures correct or clean operation of the counter-cylinder segment, in particular when it is adjusted between the active position and the passive position and / or when it is driven in rotation. It is advantageous if each counter-cylinder segment has its own roller.

[0013] According to dependent claim 4, each coupling device is at least temporarily directly or indirectly (drive-connected), preferably connected in a form-locking and / or force-locking manner, to the corresponding counter-cylinder section. Each coupling device preferably comprises or forms a (mechanical) gear. The coupling devices are preferably identical in structure.

[0014] The drive device according to dependent claim 5 is, for example, of the electric, pneumatic and / or hydraulic type. It is advantageous if the coupling device is able to transmit and / or change the movement of the drive device. For example, a force or torque is changed. The coupling device is preferably a mechanical coupling device. It is advantageous if each counter-cylinder segment is assigned a separate drive device for adjusting, in particular pivoting, the counter-cylinder segment between the active position and the passive position.

[0015] The counter-cylinder assembly according to dependent claim 6 also functions particularly reliably. It allows high cutting accuracy. At least one drive-side coupling gear is preferably directly or indirectly (drive) connected to at least one drive device, for example connected in a form-locking and / or force-locking manner. Preferably, at least one driven-side coupling element is directly or indirectly (drive) connected to the corresponding counter-cylinder segment, for example connected in a form-locking and / or force-locking manner. At least one drive-side coupling gear and at least one driven-side coupling gear of the corresponding coupling device are, for example, directly or via at least one intermediate gear, transmission-connected to each other, which allows precise positioning or adjustment of the corresponding counter-cylinder segment. The dimensions of at least one drive-side coupling gear and at least one driven-side coupling gear of the corresponding coupling device are, for example, the same or different. It is preferably designed as a spur gear.

[0016] The carrying device according to the dependent claim 7 is preferably fixed or rigid. It is advantageous if it extends at least partially, for example (substantially) centrally, within the counter-cylinder.

[0017] The counter-cylinder arrangement according to the dependent claim 8 also functions particularly reliably. It is advantageous if the carrying device carries or has at least one corresponding bearing element for this purpose.

[0018] According to the at least one cuttable circumferential reverse portion and the at least one non-cuttable circumferential reverse portion of the dependent claim 9, for example, differ in their radial extent. For example, at least one non-cuttable circumferential reverse portion extends over an angular area between 10% and 50%, preferably between 20% and 40%, of the corresponding reverse cylinder segment. At least one cuttable circumferential reverse portion preferably extends over the remaining circumference of the corresponding reverse cylinder segment. It forms, for example, a support, a bearing, etc. Optionally or additionally, the cuttable circumferential reverse portion and the non-cuttable circumferential reverse portion differ, for example, in hardness.

[0019] The drive device according to the dependent claim 10 is preferably capable of varying its length, in particular its effective length. For example, it is designed as a lifting drive device. For example, it is constructed as a piston-cylinder unit.

[0020] The embodiment according to dependent claim 11 allows particularly favorable force conditions.

[0021] The counter cylinder assembly according to dependent claim 12 is particularly effective and economical. The necessary acceleration of the counter cylinder section which requires a powerful drive can be avoided or reduced.

[0022] The embodiment according to dependent claim 13 ensures in particular that the counter-cylinder section is firmly drive-connected, in particular frictionally connected, to the drive roller both in its active position and in its passive position.

[0023] Thus, the counter-cylinder segment according to dependent claim 14 can be adjusted perpendicularly to its longitudinal axis or longitudinal centre axis. For example, it can be moved vertically. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] The preferred embodiments of the present invention are described below with reference to the accompanying drawings. In the accompanying drawings:

[0025] Figure 1 shows a front view of a transverse cutting device with a reversing cylinder assembly according to the invention, the reversing cylinder segments being adjusted to different positions,

[0026] Figure 2 Shown according to Figure 1 The cutting line II-II passes through Figure 1 A cross section of the transverse cutting device is shown, wherein the cutting counter-cylinder section is in its passive position,

[0027] Figure 3 Shown according to Figure 1 The cutting line III-III passes through Figure 1 A cross section of the transverse cutting device is shown, wherein the cutting counter-cylinder section is in its active position,

[0028] Figure 4 Shows Figure 1 a perspective view of a first portion of the transverse cutting device shown, wherein, for illustrative reasons, the counter-cylinder segment is not shown so that the internal components of the counter-cylinder assembly can be seen;

[0029] Figure 5 Shows Figure 1 a perspective view of a second portion of the transverse cutting device shown, wherein, for illustrative reasons, a plurality of counter-cylinder segments are not shown so that the internal components of the counter-cylinder assembly can be seen;

[0030] Figure 6 Shows Figure 1 The first part of the transverse cutting device shown corresponds to Figure 5 's view;

[0031] Figure 7 shows a perspective view of a material web having a cross section produced by means of the transverse cutting device shown;

[0032] Figure 8 shows a perspective view of a first part of a transverse cutting device according to the invention according to a second embodiment;

[0033] Fig. 9 Shows Figure 8 The second part of the transverse cutting device shown corresponds to Figure 8 's view;

[0034] Fig.10 Shows Figure 8 A perspective view of a transverse cutting device with a web of material to be cut is shown;

[0035] Fig.11 Shows Figure 8 a perspective view of a first portion of the transverse cutting device shown, wherein, for illustrative reasons, the counter-cylinder segment is not shown so that the internal components of the counter-cylinder assembly can be seen;

[0036] Fig.12 Shows Figure 8 The second part of the transverse cutting device shown corresponds to Fig.11 , wherein, again for illustrative reasons, the counter cylinder segment is not shown so that the internal components of the counter cylinder assembly can be seen;

[0037] Fig.13 Shows Figure 8 A front view of the transverse cutting device is shown;

[0038] Fig.14 Shows Figure 8 A front view of a transverse cutting device shown, wherein the reverse cylinder segments are located in different positions,

[0039] Fig.15 Shows Fig.14 The transverse cutting device shown is along Fig.14 A sectional view of the cutting line XV-XV in FIG. 1 , wherein the cut reverse cylinder segment is in its active position, and

[0040] Fig.16 Shows Fig.14 The transverse cutting device shown is along Fig.14 A sectional view along the cutting line XVI-XVI in which the cut counter cylinder segment is in its passive position. DETAILED DESCRIPTION

[0041] Transverse cutting devices, e.g. Figure 1, which is shown as a whole and forms a short transverse cutting device, is, for example, part of a corrugated board machine (not shown). Such a corrugated board machine has at least one device for producing at least one single-sided laminated corrugated board web. It also comprises a laminating unwinding device and a heating and stretching section, in which the webs are connected to each other by glue to form a double-sided laminated corrugated board web 47. Downstream of the heating and stretching section is a longitudinal cutting / grooving device for longitudinally cutting and grooving the two-sided laminated corrugated board web 47. The longitudinal cutting / grooving device has two slotting stations arranged in series and two longitudinal cutting stations arranged in series. The longitudinal cutting serves to divide it into partial webs. In the longitudinal cutting / grooving device, annular partial webs can be produced from the two-sided laminated corrugated board web 47, which initially still extend adjacent to each other. The partial webs are fed to the transverse cutting device via a diverter, where corrugated board sheets are produced from the partial webs. The transverse cutting device can be arranged upstream or downstream of the longitudinal cutting / slotting device, which is in the transport direction 1 of the two-sided laminated corrugated board web 47 .

[0042] The transverse cutting device has a first side wall 2 and a second side wall 3. The side walls 2, 3 are supported relative to a floor, such as a workshop floor. They are arranged opposite each other on both sides of a double-face laminated corrugated board web 47. The side walls 2, 3 extend parallel to each other and perpendicularly.

[0043] In the side walls 2, 3, a blade cylinder or a blade crossbeam 4 is supported rotatably or rotatably. The blade cylinder 4 has an axially protruding bearing journal 5, which is supported in a corresponding bearing in the side walls 2 and 3 respectively. The bearing is preferably vertically guided and movable, as a result of which the blade cylinder 4 can be moved accordingly. Exactly one bearing journal 5 is connected to exactly one blade cylinder drive motor 7 via a coupling 8. In the closed state of the coupling 8, there is a torsion-proof connection between the bearing journal 5 or the blade cylinder 4 and the blade cylinder drive motor 7. Optionally, each bearing journal 5 is preferably connected to a corresponding blade cylinder drive motor 7 for rotational drive via a corresponding coupling 8.

[0044] The blade cylinder 4 has a cylindrical base body 9 and a cutting blade 10 arranged on the base body 9 and having a free cutting edge 11. The cutting blade 10 protrudes radially outward relative to the base body 9 and extends parallel to the rotation axis 12 of the blade cylinder 4. It has a width along the rotation axis 12 that is greater than or equal to the width of the double-sided laminated corrugated board web 47 to be cut. The cutting blade 10 extends straight and is in the form of a strip. It is consistent. The cutting blade 10 preferably has a counterweight opposite to the blade cylinder 4.

[0045] In operation, the blade cylinder 4 has a rotation direction which is selected in such a way that the cutting blade 10 moves in a tangential direction adjacent to the double-faced laminated corrugated board web 47 , which corresponds to the transport direction 1 of the double-faced laminated corrugated board web 47 .

[0046] Below the blade cylinder 4, extending between the side walls 2, 3, is a counter-cylinder 13 having a longitudinal center axis 14 parallel to the rotation axis 12 of the blade cylinder 4. The longitudinal center axis 14 and the rotation axis 12 extend vertically one above the other. The blade cylinder 4 can be moved onto the counter-cylinder 13 via its bearing, as a result of which the distance or the cutting gap therebetween can be adjusted.

[0047] The counter-cylinder 13 has a plurality of counter-cylinder segments 15 to 24 which are arranged adjacent to one another along the longitudinal center axis 14. For example, they have a uniform axial extent or width.

[0048] Each counter-cylinder segment 15 to 24 comprises an inner rigid carrier ring 25 and an outer lining 26, which preferably consists of a hard plastic, such as polyurethane, and is directly or indirectly connected to the carrier ring 25 in a rotationally fixed manner. Each lining 26 has a uniform radial thickness and has an opening 27 or forms such an opening 27 in the circumferential direction around the longitudinal center axis 14. Each opening 27 is defined by two ends or edges of the corresponding lining 26, which extend parallel to each other and parallel to the longitudinal center axis 14. Each opening 27 extends from the radially outer side to the carrier ring 25, so that the underlying carrier ring 25 is exposed there. Each opening 27 extends around the longitudinal center axis 14 over an angle w of preferably between 20% and 40%. Each opening 27 extends over the entire axial width of the assigned carrier ring 25. Therefore, each lining 26 is limited in the circumferential direction.

[0049] Each counter-cylinder segment 15 to 24 is arranged on a fixed carrier device 28. The carrier device 28 has a rigid carrier 29 which is preferably cylindrical and is fixed to the side walls 2, 3. The carrier 29 has a constant cross section and extends horizontally.

[0050] The carrier device 28 further comprises a bearing ring 30 which is arranged on the carrier 29 and projects radially outward relative to the carrier 29. The bearing rings 30 are arranged on the carrier 29 in a rotationally fixed manner and extend parallel to each other. In each counter-cylinder segment 15 to 24, two bearing rings 30 spaced apart from each other are arranged in pairs, forming a corresponding bearing ring pair.

[0051] Each bearing ring pair supports a plurality of, for example three, roller devices 31, which are mounted in and adjacent to the carrier rings 25 of the corresponding counter-cylinder segments 15, 16, 17, 18, 19, 20, 21, 22, 23 and 24. The roller devices 31 supported by the bearing ring pairs are arranged at uniform angular intervals around the longitudinal center axis 14. Each roller device 31 has two spaced rollers 32, which rest against the inner side of the carrier ring 25, thereby ensuring that adjacent carrier rings 25 run cleanly together with the lining 26. The rollers 32 of the roller devices 31 are each arranged on a preferably rod-shaped connecting element 33. The rollers 32 of the roller devices 31 are, for example, connected to each other in a rotationally fixed manner. Alternatively, they can rotate independently of each other.

[0052] The roller arrangement 31 supported by the bearing ring pair also carries in each case a coupling gear 34, in particular centrally between the rollers 32, which coupling gear 34 has a smaller outer diameter than the adjacent or assigned roller 32. The coupling gear 34 can be rotated, for example, relative to the connecting element 33 carrying it. It is designed as a spur gear.

[0053] The transverse cutting device also has a plurality of drive devices 37 to 46, each of which has the same construction. The number of drive devices 37 to 46 depends on the number of counter-cylinder segments 15 to 24. The number of drive devices 37 to 46 corresponds to the number of counter-cylinder segments 15 to 24. Half of the drive devices 37 to 41 are arranged near the outer side of the first side wall 2, while the other half of the drive devices 42 to 46 are arranged near the outer side of the second side wall 3. The drive devices 37 to 46 can be actuated independently of each other.

[0054] Each drive device 37 to 46 comprises a drive shaft 35, or the latter is connected to such a drive shaft 35 in a rotationally fixed manner. Each drive shaft 35 carries a coupling gear 36, for example, at the end. The coupling gears 36 have the same design and are configured as spur gears. They are arranged in a rotationally fixed manner on the corresponding drive shaft 35 and form a coupling gear on the drive side.

[0055] The coupling gear 36 arranged in the first counter-cylinder section 15 is connected to the first drive device 37 in a rotationally fixed manner via an associated drive shaft 35. The coupling gear 36 arranged in the second counter-cylinder section 16 is connected to the second drive device 38 via an associated drive shaft 35. The coupling gear 36 arranged in the third counter-cylinder section 17 is connected to the third drive device 39 via an associated drive shaft 35. The coupling gear 36 arranged in the fourth counter-cylinder section 18 is connected to the fourth drive device 40 via an associated drive shaft 35. The coupling gear 36 arranged in the fifth counter-cylinder section 19 is connected to the fifth drive device 41 via an associated drive shaft 35. The coupling gear 36 arranged in the sixth counter-cylinder section 20 is connected to the sixth drive device 42 via an associated drive shaft 35. The coupling gear 36 arranged in the seventh counter-cylinder section 21 is connected to the seventh drive device 43 via an associated drive shaft 35. The coupling gear 36 arranged in the eighth counter-cylinder section 22 is connected to the eighth drive device 44 via an associated drive shaft 35. The coupling gear 36 arranged in the ninth counter-cylinder section 23 is drivingly connected to the ninth drive device 45 via the associated drive shaft 35. The coupling gear 36 arranged in the tenth counter-cylinder section 24 is drivingly connected to the tenth drive device 46 via the associated drive shaft 35.

[0056] The drive shafts 35 extend parallel to one another. The drive shafts 35 of the drive devices 37 to 41 arranged near the first side wall 2 have different lengths. The same applies to the drive shafts 35 of the drive devices 42 to 46 arranged near the second side wall 3. They also have different lengths. Depending on its length, each drive shaft 35 passes through at least one bearing ring 30 and is preferably rotatably supported there.

[0057] The coupling gears 34, 36 arranged in the corresponding counter cylinder sections 15, 16, 17, 18, 19, 20, 21, 22, 23 and 24 are arranged adjacent to each other and mesh with each other. They form a gear. The coupling gear 34 meshing with the drive side coupling gear 36 and supported in the corresponding bearing ring pair forms the driven side coupling gear.

[0058] Each driven side coupling gear 34 is in driving connection with the adjacent counter cylinder segment 15, 16, 17, 18, 19, 20, 21, 22, 23 and 24, respectively. For this purpose, each counter cylinder segment 15 to 24, for example in the central region, carries a circumferential annular internal toothing 69, which extends circumferentially inwardly around the longitudinal center axis 14 and is annular. For example, each driven side coupling gear 34 meshes with the internal toothing 69 of the adjacent counter cylinder segment 15, 16, 17, 18, 19, 20, 21, 22, 23 and 24, respectively. Optionally, at least one intermediate gear is arranged between each driven side coupling gear 34 and the adjacent counter cylinder segment 15, 16, 17, 18, 19, 20, 21, 22, 23 and 24 or its internal toothing 69.

[0059] The counter cylinder 13, the roller device 31, the coupling gears 34, 36, the internal teeth 69, the drive devices 37 to 46 and the carrier device 28 are components of the counter cylinder assembly. The coupling gears 34, 36 and the assigned internal teeth 69 connected to each other in a driving manner form a coupling device, in particular a toothed element coupling device.

[0060] The operation of the transverse cutting device is explained in more detail below. During corrugated board production and transverse cutting, the double-sided laminated corrugated board web 47 is continuously transported in the transport direction 1. During the cutting process, the double-sided laminated corrugated board web 47 is guided between the blade cylinder 4 and the counter cylinder 13.

[0061] The blade cylinder 4 and the counter cylinder 13 form a cutting gap. During the cutting process, they rotate about their respective axes 12 and 14, respectively. Rotating at least one counter cylinder segment 15, 16, 17, 18, 19, 20, 21, 22, 23 or 24 is necessary to produce a cross section in the double-faced laminated corrugated cardboard web 47. It has a direction of rotation, which is selected in such a way that it moves close to the double-faced laminated corrugated cardboard web 47 in a tangential direction, which corresponds to the transport direction of the double-faced laminated corrugated cardboard web 47. For example, the at least one counter cylinder segment 15, 16, 17, 18, 19, 20, 21, 22, 23 or 24 is coupled to the blade cylinder 4, for example electronically or mechanically, for example by gears, for rotational drive. Optionally, the counter cylinder segments 15 to 24 have a common drive or each have their own drive.

[0062] If a cross section extending over the entire width of the double-faced laminated corrugated cardboard web 47 is to be produced, the counter-cylinder segments 15 to 24 are adjusted so that the cutting blade 10 or its cutting edge 11 engages in a cutting manner in the double-faced laminated corrugated cardboard web 47 adjacent to the liner 26 of each counter-cylinder segment 15 to 24. Thus, the cutting blade 10 engages in the double-faced laminated corrugated cardboard web 47, spaced apart from the opening 27 of the corresponding counter-cylinder segment 15 to 24. Thus, for the entire width of the double-faced laminated corrugated cardboard web 47, all counter-cylinder segments 15 to 24 are in their active position. The liner 26 forms a support or abutment or counter-support for the double-faced laminated corrugated cardboard web 47. The liner 26 there prevents a deflection of the cutting blade 10 against the double-faced laminated corrugated cardboard web 47.

[0063] It is advantageous if the cutting blade 10 passes through the double-face laminated corrugated cardboard web 47 in a completely cutting manner and strikes the liner 26 of the corresponding counter-cylinder sections 15, 16, 17, 18, 19, 20, 21, 22, 23 and 24, respectively. In the active position, the distance between the blade cylinder 4 and the counter-cylinder 13 is selected so that when the blade cylinder 4 and the counter-cylinder 13 rotate, the cutting blade 10 strikes or engages the double-face laminated corrugated cardboard web 47, which is adjacent to the liner 26. Preferably, the cutting blade 10 strikes the corresponding liner 26 at different points in order to apply the liner 26 as evenly as possible. As a result, the local wear occurring on the corresponding liner 26 is reduced.

[0064] By correspondingly generating a second or further cross section, waste portions of the double-sided laminated corrugated board web 47 can be discharged. Possibly necessary adjustments of the counter cylinder segments 15, 16, 17, 18, 19, 20, 21, 22, 23 and 24 are explained in more detail below.

[0065] The blade cylinder 4 and the counter cylinder segments 15 to 24 are both driven in rotation accordingly for the cutting operation. They are driven or accelerated in such a way that during the actual cutting operation in the cutting gap, the cutting blade 10 and the counter cylinder segments 15 to 24 have the same tangential speed as the transport speed of the double-faced laminated corrugated board web 47.

[0066] for Figure 7 In the format variation illustrated in the example, in the longitudinal cutting / slotting device, the first longitudinal cutting station produces a first longitudinal separation cut 48 ( Figure 7). For example, the two first edge longitudinal separating cuts 49 are also produced by a first longitudinal cutting station or a separate edge cutting device in the double-faced laminated corrugated board web 47. In this case, the blades of the first longitudinal cutting station are in cutting engagement with the double-faced laminated corrugated board web 47. The width of the partial web produced from the double-faced laminated corrugated board web 47 depends on the distance of the first longitudinal separating cuts 48 from the outer edge 50 of the double-faced laminated corrugated board web 47. The same applies to the production of the first edge longitudinal separating cuts 49.

[0067] During the format change, the desired new width of the partial web is first set. To this end, the second longitudinal cutting station required to produce the second longitudinal separating cut 51 is brought to the desired position in the transverse direction of the double-sided laminated corrugated board web 47.

[0068] Then, the blade of the second longitudinal cutting station engages in a cutting manner with the double-faced laminated corrugated board web 47. This occurs before the blade of the first longitudinal cutting station is removed from the double-faced laminated corrugated board web 47. Thus, the first and second longitudinal separating cuts 48, 51 overlap in the double-faced laminated corrugated board web 47.

[0069] After the blades of the second longitudinal cutting station have cut into engagement with the double-faced laminated corrugated paperboard web 47, the blades of the first longitudinal cutting station are removed from the double-faced laminated corrugated paperboard web 47. Figure 7 , the second longitudinal separating cut 51 has a different distance from the first longitudinal separating cut 48 than the outer edge 50. Thus, the new partial web has a different width than the old or original partial web.

[0070] Similarly, two second edge longitudinal separating cuts 52 are produced in the double-faced laminated corrugated board web 47 at a different distance from the outer edge 50 than the first edge longitudinal separating cuts 49. Thus, the edge strips produced by the edge cutting have a different width than the old or original edge strips.

[0071] In order to produce the continuous longitudinal separating cuts 48, 51 or the edge longitudinal separating cuts 49, 52, corresponding partial cross sections must be produced in the double-sided laminated corrugated board web 47. Figure 7 , a partial cross section 53 and two edge-side partial edge cross sections 54 must be produced in the double-faced laminated corrugated board web 47. The partial cross section 53 is arranged between the partial edge cross sections 54. The partial cross sections 53, 54 are in each case limited and spaced apart from one another in the double-faced laminated corrugated board web 47. They have a predetermined length. The partial cross section 53 has a predetermined distance from the respective outer edge 50.

[0072] In order to produce a secure connection between the longitudinal separating cuts 48 , 51 and between the edge longitudinal separating cuts 49 , 52 , the partial cross sections 53 and 54 overlap the corresponding longitudinal separating cuts 48 , 51 and the corresponding edge longitudinal separating cuts 49 , 52 , respectively.

[0073] Part of the web remains endless. The resulting edge strip is removed. It is also endless.

[0074] The electric or electronic control device 55, which is at least temporarily connected to all drive devices 37 to 46 for actuation thereof, first determines which counter-cylinder segments 15 to 24 are able to (substantially) produce the required partial cross-sections 53, 54 in the double-sided laminated corrugated board web 47. It determines which counter-cylinder segments 15 to 24 are required for the cutting operation in the active position or the passive position. The electric control device 55 is also at least temporarily connected to the blade cylinder drive motor 7 for actuation thereof.

[0075] for Figure 7 In the illustrated format variation, the counter-cylinder segments 15 and 24 arranged at the edge and the counter-cylinder segments arranged in the middle, such as the counter-cylinder segments 18 to 21, interact with the cutting blade 10 in its active position during the cutting operation. The remaining counter-cylinder segments, such as 16, 17 and 22, 23, are in their passive positions during the cutting process. In the passive position, the blade cylinder 4 and the counter-cylinder 13 are driven in such a way that the cutting blade 10 strikes the corrugated cardboard web 47 on both sides near the opening 27 or engaged in the opening 27. The double-sided laminated corrugated cardboard web 47 is pressed or deflected into the corresponding opening 27 by the cutting blade 10. Due to the absence of a support, the double-sided laminated corrugated cardboard web 47 can deviate and thus not be cut.

[0076] In order to move the respective counter-cylinder segments 15 to 24 required for the desired cross-section into their active or passive positions, the respectively assigned drive devices 37, 38, 39, 40, 41, 42, 43, 44, 45 and 46 are actuated, which leads to a corresponding rotation of the drive shaft 35 and the assigned drive-side coupling gear 36. The driven-side coupling gear 34 meshing with this drive-side coupling gear 36 also rotates due to this coupling. Due to the transmission connection between the driven-side coupling gear 34 and the adjacent counter-cylinder segments 15, 16, 17, 18, 19, 20, 21, 22, 23 and 24, the latter are pivoted into the respective position required for the cutting operation, i.e. the active position or the passive position.

[0077] Alternatively, for example, the partial cross section 53 and the partial edge cross section 54 are first produced, and then the corresponding longitudinal separating cuts 48 , 51 and the edge longitudinal separating cuts 49 , 52 are produced.

[0078] The format variations shown are only exemplary. For example, a different number of longitudinal separation cuts 48, 51 is possible, optionally. The edge longitudinal separation cuts 49, 52 or the longitudinal separation cuts 48, 51 can also be omitted, for example. Any desired cutting position and / or cutting length can be achieved over the width of the double-sided laminated corrugated board web 47.

[0079] The signal connection may be wireless or wired.

[0080] Refer to the following Figures 8 to 16 A second embodiment is described. Structurally identical components have the same reference numerals as the previous embodiments, the description of which is hereby expressly referred to. Structurally different but functionally similar components are given the same reference numerals followed by an "a".

[0081] Each counter-cylinder segment 15a to 24a has a circumferentially closed, ie annular, lining 26a.

[0082] The carrier 29a is hollow and has a rectangular outline.

[0083] In each counter-cylinder section 15a to 24a, a separate drive 37a, 38a, 39a, 40a, 41a, 42a, 43a, 44a, 45a and 46a is provided, which is designed as a linear drive. The drives 37a to 46a are independent of one another.

[0084] Each drive device 37a to 46a is designed as a piston-cylinder unit and has a cylinder-shaped housing 56 and a piston 57 extending upward from the housing 56. Each housing 56 is supported internally on the bottom 58 of the carrier 29a. Each piston 57 has a variable effective length and passes through the top 59 of the carrier 29a extending opposite to the bottom 58.

[0085] Two coupling rings 60 are arranged in each counter-cylinder segment 15a to 24a, each coupling ring 60 having an identical design and having a smaller axial extent than the assigned counter-cylinder segment 15a, 16a, 17a, 18a, 19a, 20a, 21a, 22a, 23a and 24a.

[0086] Each coupling ring 60 is pivotably supported on the carrier 29a. To this end, the carrier 29a carries bearing projections 62 on a side wall 61 extending perpendicularly to the bottom 58, the bearing projections 62 being spaced apart from one another along the carrier 29a. Each coupling ring 60 has an inwardly protruding bearing attachment 63 adjacent to the bearing projection 62, which is hingedly connected to the bearing projection 62 via a bearing pin. Each bearing projection 62 or bearing pin provides a pivot axis 68 for the associated coupling ring 60. Optionally, for example, more than two coupling rings 60 are arranged in each counter-cylinder segment 15a to 24a. Optionally, each coupling ring 60 has, for example, two bearing attachments 63, which are hingedly connected to the bearing projection 62.

[0087] Each coupling ring 60 carries, for example, three rollers 32, which are arranged at uniform angular intervals from one another and partially protrude radially outward from the respective coupling ring 60. Each roller 32 abuts on the inside against the carrier ring 25 of the respective counter-cylinder segment 15a, 16a, 17a, 18a, 19a, 20a, 21a, 22a, 23a and 24a. The rollers 32 of each coupling ring 60 are respectively arranged in the vicinity of the assigned bearing attachment 63.

[0088] Each drive device 37 a to 46 a is located centrally between two adjacently arranged coupling rings 60 .

[0089] A horizontally extending rigid transmission beam 64 extends above each drive device 37a to 46a. Each transmission beam 64 is carried by the piston 57 of the assigned drive device 37a, 38a, 39a, 40a, 41a, 42a, 43a, 44a, 45a and 46a, respectively, and projects on both sides relative to the piston 57 along the longitudinal center axis 14. Each transmission beam 64 engages in two adjacently arranged coupling rings 60 and abuts against them on the inside of their tops.

[0090] The transverse cutting device further comprises a drive roller 65 extending parallel to and adjacent to the counter-cylinder 13a. The drive roller 65 always abuts against each counter-cylinder segment 15a to 24a at the peripheral side and is preferably drivingly connected to a rotary drive 66 via a coupling 67 for rotary drive. The drive roller 65 extends adjacent to the bearing projection 62 or the bearing attachment 63, respectively. The rotary movement of the drive roller 65 can be transmitted to the counter-cylinder segment 15a to 24a by friction.

[0091] Each counter cylinder segment 15a to 24a can pivot between an upper active position and a lower passive position about a pivot axis 68 predetermined by a corresponding bearing projection 62a or a bearing pin. Thus, each counter cylinder segment 15a to 24a can be adjusted vertically.

[0092] In order to move the respective counter-cylinder segment 15a, 16a, 17a, 18a, 19a, 20a, 21a, 22a, 23a and 24a from the passive position to the active position, the respective piston 57 is extended upwards so that its effective length increases. This extension movement is uniformly transmitted to two adjacently arranged coupling rings 60 via the assigned transmission beam 64, on which the respective counter-cylinder segment 15a, 16a, 17a, 18a, 19a, 20a, 21a, 22a, 23a and 24a is arranged respectively. The respective counter-cylinder segment 15a, 16a, 17a, 18a, 19a, 20a, 21a, 22a, 23a and 24a is thus pivoted or raised upwards.

[0093] Conversely, the corresponding piston 57 is retracted in order to bring or pivot the assigned counter-cylinder segment 15a, 16a, 17a, 18a, 19a, 20a, 21a, 22a, 23a and 24a into its lower passive position.

[0094] The generation of the corresponding cross-section is similar to the first embodiment. The counter-cylinder segments 15a, 16a, 17a, 18a, 19a, 20a, 21a, 22a, 23a and 24a for the cutting operation are in their active position and have the same height. The counter-cylinder segments 15a, 16a, 17a, 18a, 19a, 20a, 21a, 22a, 23a and 24a in the passive position have the same height, which is less than the height of the counter-cylinder segments 15a, 16a, 17a, 18a, 19a, 20a, 21a, 22a, 23a and 24a in the active position. In the active position, the liner 26a forms a support for the double-faced laminated corrugated cardboard web 47 or respectively forms a support or counter-support or the like. The liner 26a there prevents the cutting blade 10 from deflecting or deviating from the double-faced laminated corrugated cardboard web 47. Due to the absence of abutments, the double-faced laminated corrugated board web 47 can be deflected at the reverse cylinder sections 15a, 16a, 17a, 18a, 19a, 20a, 21a, 22a, 23a and 24a so that no cutting is done there.

[0095] It is advantageous if the counter cylinder segments 15a to 24a also rotate in their passive position. The blade cylinder 4 also rotates accordingly. Therefore, the acceleration or deceleration of the blade cylinder 4 and the counter cylinder 13a is ineffective, which means less drive torque and simpler control.

Claims

1. A reverse cylinder assembly for a transverse cutting device having a blade cylinder (4) for transversely cutting a material web (47) at least in an area, comprising a) a reverse cylinder (13; 13a) having i. Reversing cylinder segments (15 to 24; 15a to 24a) independently adjustable between active and passive positions to influence cross sections (53, 54) in the material web (47).

2. The reverse cylinder assembly according to claim 1, characterized in that The opposing cylinder segments (15 to 24; 15a to 24a) are capable of pivoting independently of one another about a common pivot axis (14; 68).

3. The reverse cylinder assembly according to claim 1 or 2, characterized in that: Inner rollers (32) for supporting the counter-cylinder segments (15 to 24; 15a to 24a).

4. An inverted cylinder assembly according to any one of the preceding claims, characterised in that It comprises a coupling device (34, 36, 69; 60) which is arranged in each reversing cylinder segment (15 to 24; 15a to 24a) and is at least temporarily connected to the corresponding reversing cylinder segment (15 to 24; 15a to 24a) for adjusting the reversing cylinder segment between an active position and a passive position.

5. The reverse cylinder assembly according to claim 4, characterized in that: It comprises a drive device (37 to 46; 37a to 46a) which is at least temporarily drive-connected to the coupling device (34, 36, 69; 60) to actuate the coupling device.

6. The reverse cylinder assembly according to claim 5, characterized in that Each of the coupling devices comprises at least one driving side coupling gear (36) and at least one driven side coupling gear (34) drivingly connected to the at least one driving side coupling gear, wherein the driven side coupling gear (34) is connected to the corresponding reverse cylinder section (15 to 24) for enabling the driven side coupling gear to pivot around its central axis (14).

7. An inverted cylinder assembly according to any one of the preceding claims, characterised in that It comprises a carrying device (28; 28a) for carrying the reversing cylinder (13; 13a).

8. The inverted cylinder assembly according to claims 6 and 7, characterized in that The at least one output-side coupling gear (34) and / or the at least one drive-side coupling gear (36) of the respective coupling device are rotatably mounted on the support device (28).

9. An inverted cylinder assembly according to any one of the preceding claims, characterised in that Each of the reversing cylinder sections (15 to 24) has at least one circumferential reversing portion (26) that can be cut and at least one circumferential reversing portion (27) that cannot be cut.

10. The inverted cylinder assembly according to claims 5 and 7, characterized in that The drive (37a to 46a) is arranged on the support device (28a) and is designed as a linear drive.

11. The reverse cylinder assembly according to claim 10, characterized in that Each of the coupling devices (60) is articulated to the support device (28a) via at least one eccentrically arranged pivot bearing (62, 63).

12. The reverse cylinder assembly according to claim 10 or 11, characterized in that: It comprises a driving roller (65), which is always drivingly connected to each of the reversing cylinder segments (15a to 24a) for rotationally driving the reversing cylinder segments.

13. The inverted cylinder assembly according to claims 11 and 12, characterized in that Each of the pivot bearings (62, 63) is located adjacent to the drive roller (65).

14. The inverted cylinder assembly according to any one of claims 10 to 13, characterized in that: The counter-cylinder segments ( 15 a to 24 a ) are adjustable independently of one another in their transverse direction.

15. A transverse cutting device for transversely cutting a material web (47) at least in a region, comprising a) a blade cylinder (4) which rotatably supports and carries at least one cutting blade (10), and b) A counter cylinder assembly according to any one of the preceding claims, arranged adjacent to the blade cylinder (4), the counter cylinder (13; 13a) of which forms with the blade cylinder (4) a cutting gap for transversely cutting the material web (47) at least in area.

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