Cutting assembly

Abstract

The invention relates to a cutting assembly for cutting a material web (3), in particular a corrugated-board web, or sheets (9, 20) produced therefrom, in particular corrugated-board sheets, conveyed in a conveying direction (4), which cutting assembly comprises a cross-cutting device (1) for cross-cutting the conveyed material web (3), thus forming sheets (9), and an additional processing device (2) for producing at least one cut (2a) and / or at least one groove in the conveyed material web (3) and / or in the conveyed sheets (9, 20).

Description

[0001] 2022 144 PAVO

[0002] Cutting arrangement

[0003] The invention relates to a cutting arrangement for cutting a web of material transported in a conveying direction, in particular a corrugated board web, or sheets produced from it, in particular corrugated board sheets. Furthermore, the invention relates to a corrugated board production line with at least one such cutting arrangement. The invention also relates to a method for cutting a web of material transported in a conveying direction, in particular a corrugated board web, or sheets produced from it, in particular corrugated board sheets.

[0004] Cross-cutting devices for cutting transported material webs, for example in sheets, are generally known from prior art due to obvious use. However, systems with such cross-cutting devices repeatedly reach production limits due to the cross-cutting devices themselves.

[0005] The invention aims to overcome the disadvantages of the prior art. In particular, it seeks to provide a cutting arrangement that allows for efficient cutting and processing of the material web or sheets. A corresponding corrugated board machine with at least one such cutting arrangement is also to be provided. Furthermore, a corresponding cutting method is to be developed.

[0006] This problem is solved according to the invention by the features specified in main claims 1, 14 and 15. The core of the invention lies in the additional processing device, which is capable during operation of producing additional cuts and / or grooves in the transported material web or in sheets produced / originating from it, as in all sheets or individual sheets. For example, simple or straight cuts, such as longitudinal cuts, cross cuts and / or oblique cuts with respect to the transport direction, and / or complex cuts or cut arrangements can be produced in the material web and / or the sheets by means of the additional processing device. Alternatively or additionally, simple or straight grooves, such as longitudinal grooves, transverse grooves and / or oblique grooves with respect to the transport direction, and / or complex grooves or groove arrangements can be produced in the material web and / or the sheets by means of the additional processing device. The material web and / or sheets can be processed by means of the additional processing device.The cuts or grooves produced on the processed sheet by the additional processing unit are, for example, separate from one another or continuous. The cuts or grooves are identical or different in their course within the material web or sheets and / or in their position relative to the material web or sheets. They are, for example, spaced apart from at least one edge of the material web or sheets. Alternatively, they border at least one edge of the material web or sheets.

[0007] For example, the cuts produced by the additional processing unit penetrate the material web or sheets completely in the direction of their thickness. The cuts in the material web or in the respective sheet are, for example, continuous or linear. Alternatively, they form, for example, a perforation. Perforation cuts are, for example, linear or hole-like / dot-shaped. Alternatively, the cuts in the material web or in the sheets extend over only a partial thickness or depth, such as at least 10%, at least 20%, at least 30%, at least 40%, at most 80%, at most 70%, or at most 60%. They form, for example, engravings or grooves. They are groove-like. The engravings or grooves are preferably produced by cutting. They can also be produced by other means.

[0008] The additional processing unit, for example, engages the material web or sheets from a first side and / or a second, opposite side during a processing operation, cutting or deforming / creasing the material web or sheets. It is assigned to the material web or sheets being processed. The additional processing unit is advantageously used only when needed.

[0009] The additional processing unit may, for example, have a separate cutting unit and a separate creasing unit. The cutting and creasing units are, for instance, separate and independent of each other. Alternatively, the additional processing unit may, for example, have a combined cutting and creasing unit, or a combined unit capable of cutting and creasing simultaneously or sequentially.

[0010] The material web is, for example, multi-layered. It is, for instance, a corrugated board laminated on both sides or a single-layer material web, such as a cover sheet, corrugated sheet, or laminating sheet, used to form the latter. The material web preferably consists of cardboard, paper, or the like. Alternatively, it consists, for example, of plastic or metal. It is advantageous if the material web is continuous before cross-cutting or the cutting arrangement. It is preferably transported continuously. The sheets are designed accordingly and are advantageously transported accordingly. The cross-cutting device is, for example, capable of completely cutting or separating the transported material web in its transverse direction, forming the sheets. It preferably has at least one cutting element that is, for example, rotatably driven and / or transversely displaceable. It is, for example, a component of a cross-cutting device.The cross-cutting device can comprise several cross-cutting devices, which are preferably identical in design and advantageously arranged one above the other.

[0011] The additional processing unit preferably differs structurally from the cross-cutting unit. It is arranged adjacent to or at a distance from the cross-cutting unit. The additional processing unit is preferably a component of an additional processing device. The additional processing device can have several additional processing units, which are advantageously identical in design and preferably arranged one above the other.

[0012] It is advantageous if the cross-cutting unit and the auxiliary processing unit can be operated independently of each other or operate independently. They are preferably each in direct or indirect signal communication, at least temporarily or permanently, with a higher-level signal processing unit, such as a control and / or regulating unit, for actuation. For example, the cross-cutting unit includes its own signal processing unit, such as a control and / or regulating unit, for actuation. The auxiliary processing unit, for example, has its own signal processing unit, such as a control and / or regulating unit, for actuation. The signal connection can be wireless or wired. The cross-cutting unit and / or the auxiliary processing unit are controlled, for example, by detected marks on the material web or on the sheets.

[0013] The corrugated board machine advantageously comprises at least one device for producing at least one single-sided laminated, preferably continuous, corrugated board web. Preferably, it also has a laminate web unwinding device and a joining device in which the at least one single-sided laminated corrugated board web and the, preferably continuous, laminated web are adhesively bonded together to form a double-sided laminated, preferably continuous, corrugated board web. It is advantageous if a longitudinal cutting and creasing device for longitudinally cutting and creasing the double-sided laminated corrugated board web is arranged downstream of the joining device, which is, for example, a heating and pulling section. With the longitudinal cutting and creasing device, partial corrugated board webs can be produced from the double-sided laminated corrugated board web, particularly continuous ones.

[0014] Further advantageous embodiments of the invention are specified in the dependent claims.

[0015] The cross-cutting device according to dependent claim 2 is capable of efficient and precise operation. It is preferably designed as a rotary cross-cutting device. The pair of cross-cutting rollers advantageously forms a cutting gap through which the material web to be cut is guided. Preferably, it comprises a cutter bar roller with at least one cutter bar projecting, for example, radially. The cutter bar roller extends, for example, perpendicular or obliquely to the transport direction of the material web. The at least one cutter bar runs, for example, straight along a roller body of the cutter bar roller when the cutter bar roller is oriented perpendicular to the transport direction of the material web. It preferably extends spirally along the roller body to compensate for any possible oblique orientation of the cutter bar roller.The cross-cutting roller pair preferably also includes a counter body associated with the cutter bar roller, such as a counter roller, which is preferably also designed as a cutter bar roller.

[0016] According to dependent claim 3, the additional processing device is arranged downstream of the cross-cutting roller pair. When the cross-cutting device is in operation, the material web is already present, for example, downstream of the cross-cutting device, adjacent to / within the additional processing device, in the form of arcs. The cross-cutting device has created cross-sections in the material web, forming the arcs. It is advantageous if the additional processing device is arranged upstream of a stacking tray. It is, for example, arranged adjacent to the cross-cutting roller pair. The additional processing device is also, for instance, integrated into the cross-cutting device.

[0017] The embodiment according to dependent claim 4 is functionally reliable and capable of precise operation. The auxiliary processing unit is integrated into the cross-cutting unit. The first and / or second extraction unit is / are, for example, capable of guiding or transporting the material web or sheets produced therefrom adjacent to the auxiliary processing unit, or during the production of cuts and / or grooves through the auxiliary processing unit. The first extraction unit preferably comprises at least one first driveable extraction element, such as an extraction roller. Preferably, it also has at least one first counter-extraction element associated with the at least one first extraction element, which, together with the at least one first extraction element, has at least one first extraction gap for the material web or for sheets produced therefrom.The first counter-extraction element, at least one of which is designed, for example, as an extraction roller, extraction belt, extraction belt, or the like, is advantageously driveable.

[0018] The second extraction device is designed, for example, like the first extraction device. The second extraction device preferably comprises at least one second driveable extraction element, such as an extraction roller. It also preferably has at least one second counter-extraction element associated with the at least one second extraction element, which, together with the at least one second extraction element, provides at least one second extraction gap for the material web or for sheets produced from it. The at least one second counter-extraction element is designed, for example, as an extraction roller, extraction belt, extraction tape, or the like. It is advantageously driveable. Alternatively, the first and second extraction devices differ from each other in their design.

[0019] The additional processing device according to dependent claim 5 is, for example, arranged adjacent to or at a distance from the pair of cross-cutting rollers. When the additional processing device is in operation, the material web, for example, adjacent to the cross-cutting device or its at least one cutting element, already has cuts or grooves made by the additional processing device. For example, the material web is already in the form of arcs when it reaches the cross-cutting device or its at least one cutting element. The additional processing device is, for example, integrated into the cross-cutting device or into a grooving device.

[0020] The additional processing device according to dependent claim 6 can be used efficiently even for small orders. The cuts or grooves produced by the additional processing device can be easily modified in their shape, position, length, extent, and / or direction. The additional processing device is also capable of producing cuts other than straight cuts, such as curved cuts or cuts running at an angle to each other, and grooves other than straight grooves, such as curved grooves or grooves running at an angle to each other. The beam processing device is, for example, a laser beam processing device or a liquid jet processing device, such as a water jet processing device.

[0021] The additional processing sealant according to dependent claim 7 protects the material web or sheets being processed during use. Furthermore, it is wear-resistant.

[0022] The embodiment according to dependent claim 8 is functionally reliable. It is advantageous if the at least one beam source is stationary. During operation, the at least one beam source generates at least one processing beam. The at least one beam adjustment unit is preferably adjustable, preferably motor-driven. It deflects, for example, the at least one processing beam and / or changes its focus. The at least one processing beam, deflected once or multiple times, then strikes the material web or the sheets and cuts or grooves them. It is advantageous if the additional processing unit has a beam guide. The at least one beam adjustment unit enables, for example, cuts or grooves at different angles and / or positions in the material web or sheets. Complex cuts and cut shapes, as well as grooves and groove shapes, can be executed efficiently and precisely.

[0023] If the auxiliary processing device is designed as a laser beam auxiliary processing device, the beam adjustment unit is preferably a beam adjustment mirror unit. The beam adjustment mirror unit advantageously comprises at least one adjustment mirror that is rotatably and / or translationally adjustable, for example, by means of at least one adjustment drive. For instance, a wavelength, power, and / or energy can be adapted to the respective material web or arcs to be processed, for example, by means of the beam source. Preferably, at least one focusing optic is also provided to focus the at least one processing beam. Preferably, the auxiliary processing device has a plurality of adjustment mirrors, wherein at least one adjustment mirror is rotatably and / or translationally adjustable.

[0024] The additional processing unit according to dependent claim 9 results in an efficient processing arrangement. It is advantageous if at least one processing head, such as a cutting head or creasing head, of the additional processing unit can be displaced in the transport direction or against it, preferably by means of at least one displacement drive, preferably horizontally. The additional processing unit can, for example, be displaced in its entirety in the transport direction or against it. This allows for reliable and versatile positioning of cuts or grooves in the material web or in the sheets. The cutting arrangement can thus be readily adapted to different jobs. It is advantageous if the additional processing unit, at least partially, such as a cutting head or creasing head thereof, can be displaced in a transverse direction of the material web or the sheets, preferably horizontally.For example, its entire assembly can be shifted laterally. This allows for reliable and versatile positioning of cuts or grooves in the material web or in the sheets. The cutting arrangement can thus be easily adapted to different jobs.

[0025] The additional processing device according to dependent claim 10 is, for example, capable of supporting or relieving the cross-cutting device, resulting in an efficient cutting arrangement. It is advantageous if it is capable of completely cutting or severing the material web or sheets in its transverse direction. Alternatively, it is, for example, capable of creating an additional cross-section in the material web with a predetermined length and / or a predetermined distance from a longitudinal edge of the material web. It is, for example, capable of creating at least one transverse groove in the material web or sheets, which extends, for example, over their entire transverse extent or with a predetermined length and / or a predetermined distance from a longitudinal edge thereof.

[0026] It is advantageous if the additional processing device according to dependent claim 11 is only active for cross-cutting below a cross-cutting device limit value. For example, the cross-cutting device limit value is a target arc length and / or synchronous cut length of the cross-cutting device. It is known that cross-cutting devices, especially rotary cross-cutting devices, have a speed limitation when cut lengths smaller than a synchronous cut length are being cut. The synchronous cut length or the cross-cutting device limit value depends, in particular, on the circumference of a cutter roller of the cross-cutting device. The synchronous cut length is, for example, between 800 mm and 900 mm. A cut length limitation of the system can thus be overcome.

[0027] If sheets with a target sheet length above the cross-cutting device limit are to be produced from the material web, they are preferably produced exclusively by means of the cross-cutting device.

[0028] The cutting arrangement according to dependent claim 12 is user-friendly. The cutouts are, for example, closed on the circumference or spaced apart from the edges of the material web or the sheets. Alternatively, they are open at the edges. The cutouts are, for example, spaced apart from each other. They are, for example, designed as circles, polygons, ellipses, or the like. Combinations are possible. The longitudinal cuts or grooves are preferably spaced apart from at least one edge of the material web or the sheets.

[0029] The at least one additional processing device according to dependent claim 13 is, for example, structurally and / or functionally identical to the additional processing device. The additional processing devices are, for example, arranged adjacent to or spaced apart from one another. They are preferably operable independently of one another. The cutting arrangement can thus have more than one additional processing device, which leads to high cutting or creasing performance or an efficient cutting arrangement. Dependent claims 2 to 13 and the embodiments relating thereto also relate to advantageous embodiments of the method according to independent claim 15.

[0030] The indefinite articles used in the claims are not to be understood as a quantitative limitation. For example, the cutting arrangement comprises more than one additional processing device.

[0031] The terms used here, such as "pre-ordered", "sub-ordered", "upstream", "downstream" or the like, refer primarily to the material web or the bends or their transport direction.

[0032] A preferred embodiment of the invention is described below by way of example with reference to the accompanying drawing. The drawing shows:

[0033] Fig. 1 shows a side view of a highly simplified cutting arrangement according to the invention, including the cut material web, and

[0034] Fig. 2 shows a top view of the structure shown in Fig. 1.

[0035] Cutting assembly including material web

[0036] A cutting arrangement of a corrugated board machine illustrated in Figures 1 and 2 (not shown in its entirety) comprises a cross-cutting device 1 and a laser-assisted cutting device 2. The cross-cutting device 1 is associated with the double-sided laminated corrugated board web 3. During operation, the double-sided laminated corrugated board web 3 is transported in a transport direction 4. The cross-cutting device 1 is arranged adjacent to a transport path of the double-sided laminated corrugated board web 3. It is capable of cutting the double-sided laminated corrugated board web 3.

[0037] The double-sided laminated corrugated board 3 comprises at least one single-sided laminated corrugated board liner and one smooth laminated liner, which are bonded together with adhesive. Each single-sided laminated corrugated board liner has a smooth top liner and a corrugated liner, which are bonded together with adhesive.

[0038] The cross-cutting device 1 comprises two pairs of cutter bar rollers 5, namely a lower cutter bar roller and an upper cutter bar roller. Each cutter bar roller 5 forms a cutting element and is mounted for rotation about a rotary axis 6. The rotary axes 6 are parallel to each other and horizontal. Each cutter bar roller 5 has a roller body 7 and a cutter bar 8 projecting from it. Each cutter bar 8 is continuous and has a free cutting edge. The cross-cutting device 1 also comprises at least one rotary drive 10 for rotating the cutter bar rollers 5.

[0039] To cut the double-sided laminated corrugated board 3 across its width, the cutter bars 8 interact, forming a cutting gap. The double-sided laminated corrugated board 3 passes through this cutting gap. The cross-cutting device 1 is capable of producing rectangular corrugated board sheets 9 from the double-sided laminated corrugated board 3. To produce the corrugated board sheets 9, the double-sided laminated corrugated board 3 is cut in its transverse or width direction, i.e., perpendicular to its transport direction 4 and preferably in the plane of the double-sided laminated corrugated board 3. During operation, the cross-cutting device 1 produces cross-sections 1a in the single-sided laminated corrugated board 3 when producing the corrugated board sheets 9.

[0040] The cross-cutting device 1 also has a first feed device 11 upstream of the knife bar rollers 5, comprising a first feed roller pair with two first feed rollers 12 arranged one above the other. The first feed rollers 12 extend horizontally and perpendicular to the transport direction 4. They are mounted for rotational drive and are associated with the double-sided laminated corrugated board web 3. The first feed rollers 12 form a first feed gap for drawing the double-sided laminated corrugated board web 3 into the downstream knife bar rollers 5. They are rotatably driven by at least one first feed roller drive (not shown).

[0041] Furthermore, the cross-cutting device 1 includes a second infeed device 13, which is advantageously designed like the first infeed device 11. The second infeed device 13 is located downstream of the first infeed device 11 in the transport direction 4 and upstream of the knife bar rollers 5. It comprises two second infeed rollers 14 arranged one above the other in pairs. The second infeed rollers 14 extend horizontally and perpendicular to the transport direction 4. They are mounted for rotational drive and are again associated with the double-sided laminated corrugated board web 3. They form a second infeed gap for drawing the double-sided laminated corrugated board web 3 into the downstream knife bar rollers 5. They are rotatably driven by at least one second infeed roller drive (not shown). Alternatively, for example, only one infeed device 11 or 13 is present.The cross-cutting unit 1 also has a first extraction unit 15, which comprises two first extraction rollers 16 arranged one above the other in pairs. The first extraction rollers 16 extend horizontally and perpendicular to the transport direction 4. They are associated with the corrugated board sheets 9 or the double-sided laminated corrugated board web 3 and can be rotated by at least one first extraction roller drive (not shown). The first extraction rollers 16 are mounted for rotation. They form a first extraction gap through which the corrugated board sheets 9 or the double-sided laminated corrugated board web 3 produced by the knife bar rollers 5 are transported or extracted in the transport direction 4.

[0042] The cross-cutting device 1 further comprises a second extraction device 17, which is arranged downstream of the first extraction device 15 in the transport direction 4 and is designed, for example, like the first extraction device 15. The second extraction device 17 has two second extraction rollers 18 arranged one above the other in pairs. The second extraction rollers 18 extend horizontally and perpendicular to the transport direction 4. They are associated with the corrugated board sheets 9 or the double-sided laminated corrugated board web 3 and are rotatably driven by at least one second extraction roller drive (not shown). The second extraction rollers 18 are rotatably mounted. They form a second extraction gap through which the corrugated board sheets 9 or the double-sided laminated corrugated board web 3 produced by the knife bar rollers 5 are transported or extracted in the transport direction 4.The auxiliary cutting device 2 is arranged between the first extraction unit 15 and the second extraction unit 17. It is designed as a laser beam auxiliary cutting device, in particular a high-power laser beam auxiliary cutting device. The auxiliary cutting device 2 is associated with the double-sided laminated corrugated board web 3 or the corrugated board sheets 9. More precisely, it is arranged adjacent to a transport path of the double-sided laminated corrugated board web 3 or the corrugated board sheets 9. The double-sided laminated corrugated board web 3 or the corrugated board sheets 9 are preferably transported horizontally adjacent to the auxiliary cutting device 2.

[0043] The additional cutting device 2 is capable of producing cuts in the corrugated board sheets 9. For example, it produces at least one additional cut in each corrugated board sheet 9 during operation. It does not produce at least one additional cut in every corrugated board sheet 9, but rather in every second, third, etc., sheet 9. The cuts can be identical or different. The additional cutting device 2 is also capable of producing at least one cut, preferably identical and / or different cuts, in the double-sided laminated corrugated board web 3 when the cross-cutting device 1 is inactive.

[0044] A cutting head 22 of the additional cutting device 2 can be displaced or moved horizontally or parallel to an adjacent area of ​​the double-sided laminated corrugated board web 3 or the corrugated board sheets 9. For example, the cutting head 22 can be displaced in the transport direction 4, i.e., between the first extraction device 15 and the second extraction device 17. Additionally, the cutting head 22 can be displaced or moved horizontally, for example, perpendicular to the transport direction 4. It is connected to at least one corresponding displacement drive 19 for this purpose.

[0045] The cutting head 22, for example, has a laser beam adjustment mirror arrangement 26, wherein at least one laser beam adjustment mirror of the same is specifically motor-driven, rotatorily and / or translationally adjustable.

[0046] The cutting head 22 is guided accordingly. The additional cutting device 2 comprises a frame 23 that supports the cutting head 22. The frame 23 is supported, directly or indirectly, against a floor, such as a hall floor. It is, for example, arranged directly or indirectly on or formed by a base frame of the cross-cutting device 1 or the extension devices 15, 17.

[0047] The at least one rotary drive 10 and the at least one displacement drive 19 are, for example, at least temporarily in signal communication with a higher-level control and / or regulation unit 21.

[0048] The cross-cutting device 1 is advantageously a component of a cross-cutting apparatus. The cross-cutting apparatus preferably has several cross-cutting devices 1, which are preferably identical in design and arranged one above the other.

[0049] It is advantageous if the additional cutting device 2 is also part of an additional cutting apparatus. The additional cutting apparatus preferably comprises several additional cutting devices 2, which are preferably identical in design and arranged one above the other. A double-sided laminated corrugated board web 3 is guided through each transverse cutting device 1 and the additional cutting device 2 downstream of it. This web is produced in a longitudinal cutting and creasing device (not shown) of the corrugated board machine and is a double-sided laminated partial corrugated board web.

[0050] A stacking tray (not shown) of the corrugated board machine is located downstream of the cutting arrangement.

[0051] The double-sided laminated corrugated board web 3 is continuously transported in the transport direction 4 during the corrugated board production or a cutting process.

[0052] The cutter bar rollers 5 rotate around their respective axes of rotation 6 for the cross-cutting of the double-sided laminated corrugated board 3. They are driven or accelerated for the cutting process such that the cutter bars 8 have a tangential velocity in the cutting gap that is identical to the transport velocity of the double-sided laminated corrugated board 3. The cutter bars 8 act together in a cutting action during the cross-cutting of the double-sided laminated corrugated board 3. They collide during the cutting process.

[0053] When the additional cutting device 2 is in operation, at least one laser cutting beam source 27 of the additional cutting device 2 generates at least one laser beam. The laser radiation is, for example, continuous or pulsed. The at least one laser beam strikes the adjustable mirror arrangement 26, where it is deflected. The lines of impact of the at least one laser beam on the corrugated board sheets 9 or the double-sided laminated corrugated board web 3 can be adjusted by means of the cutting head 22. The cutting head 22 is moved accordingly. Alternatively or additionally, the adjustable mirror arrangement 26 is adjusted accordingly. The lines of impact form cutting lines. The additional cutting device 2 operates without contact.

[0054] The additional cutting unit 2, for example, cuts rectangular partial corrugated sheets 20 from the corrugated sheets 9 during operation. These partial sheets are shorter than the corrugated sheets 9 in the transport direction 4. It creates cross-cuts 2a in the corrugated sheets 9. The cross-cutting unit 1 can then, but does not have to, run more slowly. The production output of the corrugated board plant can be increased by the additional cutting unit 2.

[0055] Alternatively or additionally, the supplementary cutting device 2 is able to perform other, such as complex, cuts 24, cutting arrangements with several cuts or cutouts 25 in the double-sided laminated corrugated board web 3, the partial corrugated board sheets 20 or the corrugated board sheets 9.

[0056] The additional cutting device 2 is, for example, capable of completely penetrating the double-sided laminated corrugated board web 3, the corrugated board sheets 9, or the partial corrugated board sheets 20 vertically in their thickness direction during the cutting process, as shown in Fig. 1. It is also capable of only partially cutting into the double-sided laminated corrugated board web 3, the corrugated board sheets 9, or the partial corrugated board sheets 20, forming a groove or slot open outwards, open upwards, and closed downwards, as shown in Fig. 1. Advantageously, the additional cutting device 2 is capable of producing both continuous cuts 24 in the thickness direction and cuts limited in the thickness direction in the double-sided laminated corrugated board web 3, the corrugated board sheets 9, or the partial corrugated board sheets 20. All of this is achievable with the at least one laser beam. The laser beam is adjusted accordingly.For example, the processing speed and / or processing power of the additional cutting device 2 is adjusted accordingly, depending on the desired cutting depth.

[0057] The corrugated cardboard sheets 9 or the partial corrugated cardboard sheets 20 are stacked into stacks in the stacking tray.

[0058] The cutting arrangement enables high production speeds, even when producing short corrugated cardboard sheets 9, 20. For example, corrugated cardboard sheets 9, 20 can be produced in several cutting steps, ultimately resulting in a target sheet length. The corrugated cardboard sheets 9 produced by the cross-cutting device 1 preferably each have a multiple of the target sheet length, such as two, three, four, or five times the target sheet length. The cutting processes are offset from one another in time and / or space.

[0059] As is known, the cross-cutting unit 1, which is mechanical in nature, is subject to inertia. In contrast, the auxiliary cutting unit 2 can be adapted to various requirements at short notice. It is versatile in its application. In particular, it can be flexibly positioned throughout the entire corrugated board production line for the production of cutouts 25 or freeform surfaces. The auxiliary cutting unit 2 operates analogously when it cuts not the corrugated board sheets 9, but the double-sided laminated corrugated board web 3 that is not cut by the cross-cutting unit 1. In this case, only the auxiliary cutting unit 2 operates with respect to the cross-cutting unit 1, and the cross-cutting unit 1 remains stationary. Conversely, only the cross-cutting unit 1 can operate, and the auxiliary cutting unit 2 remains stationary.

[0060] According to an alternative embodiment, not illustrated, the additional cutting device 2 is arranged upstream of the cutter bar rollers 5, rather than downstream. Reference is otherwise made to the preceding descriptions.

[0061] Alternatively, several additional cutting devices 2 are available. They can be arranged upstream and / or downstream of the cutter bar rollers 5. They can be assigned to the double-sided laminated corrugated board web 3 and / or to a web for its formation. Reference is otherwise made to the preceding descriptions.

Claims

- 22 - Patent claims 1. Cutting arrangement for cutting a material web (3), in particular a corrugated board web, transported in a transport direction (4), or sheets (9, 20), in particular corrugated board sheets, produced from it, comprising a) a cross-cutting device (1) for cross-cutting the transported material web (3) to form sheets (9), and b) an additional processing device (2) for producing at least one cut (2a, 24, 25) and / or at least one groove in the transported material web (3) and / or in the transported sheets (9, 20).

2. Cutting arrangement according to claim 1, characterized in that the transverse cutting device (1) has a transverse cutting roller pair (5).

3. Cutting arrangement according to claim 2, characterized in that the additional processing device (2) is arranged downstream of the transverse cutting roller pair (5) in the transport direction (4).

4. Cutting arrangement according to claim 2 or 3, characterized in that the transverse cutting device (1) has a first extraction device (15) and a second extraction device (17) downstream of the first extraction device (15) in the transport direction (4), wherein the additional processing device (2) is arranged between the first extraction device (15) and the second extraction device (17).

5. Cutting arrangement according to claim 1 or 2, characterized in that the additional processing device (2) is arranged upstream of the transverse cutting roller pair (5) in the transport direction (4).

6. Cutting arrangement according to one of the preceding claims, characterized in that the additional processing device (2) is designed as a beam processing device.

7. Cutting arrangement according to one of the preceding claims, characterized in that the additional processing device (2) is designed to produce the at least one cut (2a, 24, 25) without contact in the material web (3) and / or the arcs (9, 20).

8. Cutting arrangement according to one of the preceding claims, characterized in that the additional processing device (2) has at least one beam source (27) and at least one beam adjustment unit (26) downstream of it.

9. Cutting arrangement according to one of the preceding claims, characterized in that the additional processing device (2) is at least partially displaceable in the transport direction (4).

10. Cutting arrangement according to one of the preceding claims, characterized in that the additional processing device (2) is designed to additionally produce at least one cross-section (2a) and / or at least one transverse groove in a transverse direction of the material web (3) or the arcs (9, 20) in the material web (3) and / or the arcs (9, 20).

11. Cutting arrangement according to claim 10, characterized in that the additional processing device (2) is active only below a cross-cutting device limit value of the cross-cutting device (1) when generating the at least one additional cross-section (2a) and / or the at least one transverse groove.

12. Cutting arrangement according to one of the preceding claims, characterized in that the additional processing device (2) is configured to produce at least one longitudinal cut (24) and / or at least one longitudinal groove in the transport direction (4) and / or at least one cutout (25) in the material web (3) and / or the sheets (9, 20).

13. Cutting arrangement according to one of the preceding claims, characterized by at least one further additional processing device (2) for producing at least one further cut (2a, 24, 25) and / or at least one further groove in the transported material web (3) and / or the sheets (9, 20).

14. Corrugated board plant with at least one cutting arrangement according to one of the preceding claims.

15. Method for cutting a material web (3), in particular a corrugated board web, transported in a transport direction (4), or sheets (9, 20), in particular corrugated board sheets, produced from it, comprising the steps Providing a cross-cutting device (1) associated with the material web (3), and - 25 - Producing at least one cut (2a, 24, 25) and / or at least one groove in the transported material web (3) and / or the arcs (9, 20) by means of an additional processing device (2).

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