Printing assembly, printing method and material web

Abstract

A printing assembly (15) for printing a corrugated cardboard web (23), which is laminated on both sides, and / or at least one material web (3, 4, 10, 12) for forming the corrugated cardboard web (23), which is laminated on both sides, with imprints (16) is capable of receiving printing data relevant to the printing and of adapting at least one position of at least one of the imprints (16) in a longitudinal direction of the web.

Description

[0001] PRINTING ARRANGEMENT, PRINTING PROCESS AND MATERIAL WEB

[0002] The invention relates to a printing arrangement and a system comprising at least one such printing arrangement. Furthermore, the invention is directed to a printing method. The invention is also directed to a material web.

[0003] Corrugated board systems and processes for producing corrugated board are generally known from the prior art through public prior use. A disadvantage of this technology is that sheets of corrugated board are repeatedly produced with the imprint cut off by a cross-section or incorrectly positioned at a transverse edge. This generates corrugated board waste, which impairs the economic efficiency of the corrugated board system and is contrary to environmental considerations.

[0004] The invention is therefore based on the object of providing a printing system that overcomes the disadvantages of the prior art. In particular, a printing system is to be created that allows the production of particularly high-quality corrugated cardboard sheets with the lowest possible waste. A corresponding system and method, as well as a corresponding material web, are also to be provided.

[0005] This object is achieved according to the invention by the features specified in independent claims 1, 4, 14 and 15. Advantageously, at least one position of at least one imprint, in particular of each imprint, can be spatially displaced with respect to the respective corrugated cardboard sheet or the respective web in the corrugated cardboard transport direction and / or counter to the corrugated cardboard transport direction or the web longitudinal direction. For example, for this purpose, at least one imprint can be printed earlier or later in time by the printing arrangement onto the transported double-sided laminated corrugated cardboard web and / or at least one material web for forming the double-sided laminated corrugated cardboard web. The material web is, for example, a single-sided laminated corrugated cardboard web and / or at least one material web for forming the same.

[0006] The print data originates, for example, directly or indirectly, from an operating device, such as a control system, in particular a corrugated board system operating device, a production operating device, or the like. They relate, for example, to positions (longitudinal / transverse positions), size, and / or resolution of the imprints, or what is to be printed. The printing device is capable of receiving the print data and printing the imprints onto the web to be printed accordingly.

[0007] The double-sided laminated corrugated cardboard sheet is, for example, three-layer, five-layer, or seven-layer.

[0008] It is advantageous if each partial corrugated board sheet has prints, preferably a plurality of prints. The prints can be identical or different. For example, the finished corrugated board is printed on one or both sides.

[0009] Each corrugated cardboard sheet has two opposing transverse edges, which preferably run parallel to each other and are produced by cross-cutting a (partial) corrugated cardboard web laminated on both sides. The transverse edges preferably extend perpendicular to the corrugated cardboard transport direction. Each corrugated cardboard sheet also has two opposing longitudinal edges, which advantageously run parallel to each other and extend in the corrugated cardboard transport direction. The transverse edges and longitudinal edges of each corrugated cardboard sheet preferably run perpendicular to each other. It is expedient if the corrugated cardboard sheets have an identical length in the corrugated cardboard transport direction. They are preferably rectangular.

[0010] The at least one device for producing at least one single-sided laminated corrugated cardboard web advantageously comprises a respective corrugating device for forming a corrugated web and preferably a gluing device for gluing the corresponding corrugated web and preferably a pressing device for pressing a respective cover web against the associated glued corrugated web.

[0011] The device for producing a double-sided laminated corrugated cardboard web is advantageously designed as a heating and pressing device. It preferably comprises a heating table with heating elements and a pressing belt guided around guide rollers, forming a pressing gap with the heating table. The at least one single-sided, glued corrugated cardboard web and the laminated web are guided through the pressing gap, where they are pressed against each other and bonded together by gluing.

[0012] The printing arrangement is advantageously designed as a digital printing arrangement, in particular an inkjet printing arrangement. It is expedient if the imprints are formed by ink, paint, or the like, in particular by ejecting the same. The imprints preferably each comprise at least one number, one letter, one photo, one graphic, or the like. They advantageously cover at least part of a printed side of the web to be printed. The longitudinal cutting device is preferably designed as a longitudinal cutting / creasing device for longitudinally cutting and creasing the double-sided laminated corrugated cardboard web. It is preferably capable of cutting the double-sided laminated corrugated cardboard web at a distance from its longitudinal edges. Longitudinal edges of the corrugated cardboard sheets can be produced by it. It is expedient if the longitudinal cutting device has at least one longitudinal cutting device and a counter device associated with it.

[0013] It is advantageous if the cross-cutting device is capable of producing cross-sections that extend across the entire width of the partial corrugated cardboard webs and thus form corresponding transverse edges on the corrugated cardboard sheets that run perpendicular to the corrugated cardboard transport direction. The cross-cutting device advantageously has at least one cross-cutting roller with at least one radially outwardly extending cross-cutting blade for completely transversely severing the partial corrugated cardboard webs passed through the cross-cutting device. The cross-cutting device preferably comprises two cross-cutting rollers arranged in pairs, each of which is rotatably driven about a rotational axis. The rotational axes preferably run parallel to one another. A roller gap through which the partial corrugated cardboard webs are guided is advantageously provided between the cross-cutting rollers. It is expedient if each cross-cutting roller has or carries at least one cross-cutting blade.The cross-cutting knives of the cross-cutting rollers work together to cut through the respective partial corrugated cardboard web, so that corrugated cardboard sheets are present downstream of the cross-cutting device.

[0014] The at least one cross-cutting blade preferably extends axially to a longitudinal or rotational axis of the associated cross-cutting roller and in the circumferential direction around the longitudinal or rotational axis of the associated cross-cutting roller. It preferably runs spirally or curved around the longitudinal or rotational axis. For example, it is arranged spirally on a lateral surface of the respective cross-cutting roller in such a way that an inclined position of the rotational axis with respect to the corrugated cardboard transport direction is compensated. The respective partial corrugated cardboard web can be severed by means of the at least one respective cross-cutting blade in a straight line perpendicular to the corrugated cardboard transport direction. The inclined position of the rotational axis(es) allows progressive cutting of the respective partial corrugated cardboard web as the cross-cutting roller(s) rotate. Corrugated cardboard sheets of a predetermined length can thus be produced.

[0015] The corrugated board machine actuating arrangement is advantageously designed as a control and / or regulating arrangement. It is preferably electrical or electronic in nature. It is expedient if the corrugated board machine actuating arrangement is at least temporarily in direct or indirect signal communication with the at least one printing arrangement and / or cross-cutting device.

[0016] The signal connections specified here can be wireless or wired. Information or data can be transmitted unidirectionally or bidirectionally, depending on the application.

[0017] The terms “upstream”, “downstream”, “downstream”, “upstream” or the like used here refer in particular to the transport direction of the respective web.

[0018] Further advantageous embodiments of the invention are specified in the subclaims. The printing arrangement according to subclaim 2 is capable of printing imprints next to each other, i.e., in lines. It is preferably also capable of printing imprints one after the other, i.e., in columns. Furthermore, the printing arrangement is preferably capable of arranging at least one of the imprints arranged in a line or next to each other in a correspondingly offset manner relative to the other imprints arranged in this line.

[0019] The printing arrangement is thus capable of adjusting at least one (longitudinal) position of at least one imprint on the web accordingly. Conventionally, the imprints arranged next to one another are not offset from one another, i.e., aligned with one another or exactly in one row or line. According to the invention, the imprints are preferably arranged in such a way that they are arranged in steps or in a staircase-like manner. They are advantageously arranged in a descending or ascending manner in the respective row. A respective offset between imprints arranged adjacently in the row is, for example, identical. The imprints arranged next to one another in the width direction of the partial corrugated cardboard webs are preferably identical.

[0020] The printing arrangement according to subclaim 3 is, for example, capable of printing in dependence on a cross-cutting device, or can be actuated, in particular controlled, accordingly. Thus, preferably, corrugated cardboard sheets can be produced whose at least one imprint is precisely aligned with at least one respective cross-section or transverse edge thereof. It has been found that when cross-cutting partial corrugated cardboard webs laminated on both sides to form a corresponding (partial) transverse edge or corrugated cardboard sheet, a cutting offset occurs across the width or transverse direction of the partial corrugated cardboard webs, which, due to their printing, is particularly noticeable and repeatedly leads to corrugated cardboard waste.This cutting offset is primarily due to the fact that the adjacent partial corrugated cardboard webs are pulled in the corrugated cardboard transport direction during cross-cutting, resulting in a successive change in their web tension as they are cross-cut sequentially. The invention recognizes that such an offset can be easily and reliably compensated for by printing depending on the cross-cutting device or the cross-cutting process. The material web is printed accordingly.

[0021] It is expedient if the printing arrangement prints in such a way that at least one imprint is aligned with at least one cross-section of the respective corrugated cardboard sheet.

[0022] The printing assembly is preferably actuated, in particular controlled, accordingly for the alignment of the print. It is expedient if the printing assembly has at least one printing assembly actuation unit, in particular a printing assembly control unit, or is at least temporarily, directly or indirectly, in signal communication with such a unit.

[0023] Preferably, the at least one cross-section extends perpendicularly and / or along the at least one adjacent / associated imprint. The finished corrugated board is visually extremely appealing. This prevents the at least one cross-section from intersecting the at least one adjacent imprint, thus rendering the corresponding at least one imprint incomplete or distorted.

[0024] The cross-section detection arrangement according to dependent claim 5 advantageously comprises at least one cross-section detection device, such as a cross-section detection camera, sensor, and / or laser, in particular a line laser. It is expedient if the cross-section detection arrangement operates contactlessly or optically. For example, it is capable of detecting the generated cross-sections or transverse edges of the corrugated cardboard sheets, in particular their position or profile, particularly with respect to the respective corrugated cardboard sheet. For example, the at least one cross-section detection device is displaceable adjacent to the corrugated cardboard sheets in a width direction. It forms, for example, a traversing system.Alternatively, the cross-section detection arrangement has, for example, a plurality of cross-section detection devices, in particular arranged next to one another, wherein preferably each partial corrugated cardboard web is assigned at least one cross-section detection device.

[0025] The cross-section position evaluation device according to dependent claim 6 is in particular of an electrical or electronic nature. It is at least temporarily in direct or indirect signal communication with the cross-section detection arrangement. The cross-section position evaluation device is particularly capable of evaluating the positions of the cross sections or transverse edges of the corrugated cardboard sheets, in particular with respect to the respective corrugated cardboard sheet. Preferably, the cross-section position evaluation device is a component of the corrugator's operating arrangement. Alternatively, these can be implemented separately, for example.

[0026] The embodiment according to subclaim 7 is particularly cost-effective and functionally reliable. The cross-section detection arrangement is capable of detecting both the generated cross-sections and cross-cutting marks that trigger a cross-cutting process.

[0027] It is advisable to re-produce corrugated board if the amount of corrugated board waste exceeds a certain threshold. Such a system is particularly reliable. The threshold value should preferably be predeterminable.

[0028] The cross-sectional detection arrangement and the at least one pressure arrangement according to subclaim 8 are preferably at least temporarily in direct or indirect signal communication with one another.

[0029] The experience database according to subclaims 9 and 10 again leads to an extremely efficient and environmentally friendly corrugated board plant. It is expedient if the experience database is at least temporarily, in particular directly or indirectly, in signal communication with the corrugated board plant's actuating arrangement, the cross-cutting device, the cross-section detection arrangement, and / or a production control system. It can be updated, preferably at any time, early and / or in a timely manner, in particular during operation of the corrugated board plant. It is advantageous if at least one recorded or detected actual value and / or one finding can be stored in the experience database. Advantageously, the at least one finding can be used for subsequent orders or order combinations. It is expedient if a comparison with the experience database is carried out before a new order is started.If at least one corresponding value already exists in the experience database, this is advantageously transmitted as a start parameter of at least one printing arrangement.

[0030] The design according to subclaim 11 results in corrugated cardboard of particularly high quality. Waste is avoidable.

[0031] The at least one pressure arrangement according to dependent claim 12 is capable of adapting to the cross-cutting device, in particular individually. For this purpose, it is actuated, in particular controlled, accordingly. The cross-cutting device and the at least one pressure arrangement are, at least temporarily, in direct or indirect signal communication with one another. For example, the at least one pressure arrangement is adaptable to the type and / or design of the cross-cutting device, such as the at least one cross-cutting roller or the at least one cross-cutting blade, and / or the orientation / arrangement of the at least one cross-cutting device, or the like. The at least one property is, for example, an individual property of the cross-cutting device.

[0032] According to subclaim 13, the at least one printing arrangement is, for example, a component of the corrugated board system. In particular, the at least one printing arrangement is integrated into the corrugated board system. Alternatively, the at least one printing arrangement and the corrugated board system are arranged at a distance from one another, such as spatially separated from one another. They are arranged, for example, in different hall areas, districts, cities, companies, locations, or the like. Printing and corrugated board production, for example, take place spatially and temporally separately.

[0033] The subclaims and statements thereto also relate to preferred developments of independent claim 14.

[0034] Two preferred embodiments of the invention are described below by way of example with reference to the accompanying drawings. In the drawings:

[0035] Fig. 1 is a simplified view of a system according to the invention with a printing arrangement integrated into a corrugated board plant,

[0036] Fig. 2 is a block diagram illustrating primarily the operation of the printing assembly and cross-cutting device of the system shown in Figure 1,

[0037] Fig. 3 is a plan view of a material web according to the invention with offset prints,

[0038] Fig. 4 is a simplified view of a system according to the invention according to a second embodiment, in which the printing arrangement is arranged upstream of the corrugator, and Fig. 5 is a block diagram which mainly illustrates the operation of the printing arrangement and cross-cutting device of the system shown in Fig. 4

[0039] Referring first to Figure 1, a corrugated board plant comprises a device 1 for producing a single-sided laminated corrugated board web.

[0040] A first material web 3 is fed from a first unwinding device 2 to the device 1 for producing a single-sided laminated corrugated cardboard web. The first unwinding device 2 is advantageously designed as a splicing device, so that the first material web 3 is endless.

[0041] In the device 1 for producing a single-sided laminated corrugated cardboard web, the first material web 3 is joined to a second material web 4, which comes from a second unwinding device 5. The second unwinding device 5 is preferably designed as a splicing device, so that the second material web 4 is endless.

[0042] In the device 1 for producing a single-sided laminated corrugated cardboard web, the second material web 4 is passed between two adjacent corrugating rollers 6, 7, so that the second material web 4 is corrugated or fluted there. After passing through the paired corrugating rollers 6, 7, the second material web 4 is in the form of a corrugated web.

[0043] Subsequently, in the device 1 for producing a single-sided laminated corrugated cardboard web, the peaks of the corrugation of the second material web 4 are glued by means of a gluing device 8. The gluing device 8 has a gluing roller that forms a gluing gap with the upper corrugating roller 6 and receives glue from a gluing tank, directly or indirectly, preferably in a metered manner.

[0044] The glued second material web 4 and the first material web 3 are then pressed together and bonded together in the device 1 for producing a single-sided corrugated cardboard web in a pressing nip between a pressing device 9 and the upper corrugating roller 6. The pressing device 9 is designed, for example, as a pressing roller. Alternatively, it comprises, for example, at least two deflection rollers and a pressing belt guided around them.

[0045] A single-sided laminated corrugated cardboard web 10 is fed out of the device 1 for producing a single-sided laminated corrugated cardboard web, which web comprises the first material web 3 and the corrugated second material web or corrugated web 4.

[0046] The single-sided laminated corrugated cardboard web 10 is fed to a preheating device 11.

[0047] Furthermore, a third material web 12 is fed from a third unwinding device 13 to the preheating device 11. The third unwinding device 13 is preferably designed as a splicing device, so that the third material web 12 is endless. The third material web 12 forms an outer lamination web in the finished corrugated board.

[0048] The preheating device 11 has two heatable heating rollers 14 arranged one above the other, which extend parallel to each other and horizontally. The single-sided laminated corrugated cardboard web 10 and the third material web 12 partially wrap around the respective heating roller 14 in the preheating device 11.

[0049] A digital printing system 15 is arranged between the third unwinding device 13 and the preheating device 11. This system prints the third material web 12 on one printing side and is thus integrated into the corrugated board system. The printing side forms a free outer side of the finished corrugated board and is thus visible. The digital printing system 15 has, for example, a central or printing cylinder and a print head device associated with it. It is capable of producing imprints 16 (see Figure 3) on the printing side. Other positioning of the digital printing system 15 is possible. The corrugated board system and the digital printing system 15 form a system.

[0050] Downstream of the preheating device 11 is a gluing unit 17 with a glue application roller 18, which receives glue from a glue bath, directly or indirectly, preferably in metered amounts. The corrugation tips of the single-sided laminated corrugated board web 10 are in contact with the glue application roller 18, so that they are coated with glue there.

[0051] Downstream of the gluing unit 17 is a heating and pressing device 19 comprising a horizontal table 20 with heating plates. Above the table 20, the heating and pressing device 19 has a driven, endless pressing belt 22 guided around guide rollers 21. A pressing gap is formed between the pressing belt 22 and the table 20, through which the single-sided laminated corrugated cardboard web 10 and the third material web 12 are guided and pressed together. In the heating and pressing device 19, a three-layer corrugated cardboard web 23 is formed, which is laminated on both sides. The heating and pressing device 19 thus forms a device for producing a double-sided laminated corrugated cardboard web.

[0052] Downstream of the heating and pressing device 19 is a longitudinal cutting / scoring device 24 comprising creasing units 25 and longitudinal cutting units 26. The creasing units 25 each have two tool beds arranged essentially mirror-symmetrically to the double-sided laminated corrugated cardboard web 23. Creasing tools arranged on tool carriers on the pivotable tool beds are individually displaceable transversely to a corrugated cardboard transport direction 27, which can be individually engaged with the double-sided laminated corrugated cardboard web 23.

[0053] The longitudinal cutting units 26 have tool beds on which rotating knives are arranged on tool carriers and can be individually displaced transversely to the corrugated cardboard transport direction 27. The knives can be individually engaged with the double-sided laminated corrugated cardboard web 23 and interact with rotationally driven brush rollers arranged on the other side of the double-sided laminated corrugated cardboard web 23 when the knives are immersed in the double-sided laminated corrugated cardboard web 23. The longitudinal cutting units 26 are capable of cutting the double-sided laminated corrugated cardboard web 23 into partial corrugated cardboard webs 28 that extend and move in the corrugated cardboard transport direction 27 (Figure 3).

[0054] The longitudinal cutting-Z-grooving device 24 is a cross cutting device

[0055] 29, which comprises two rotationally driven cross-cutting rollers 30 arranged one above the other in pairs and extending essentially perpendicular to the corrugated cardboard transport direction 27. Each cross-cutting roller 30 extends horizontally and carries a radially outwardly extending cross-cutting blade 31. The cross-cutting blades 31 cooperate to completely transversely cut the partial corrugated cardboard webs 28 passed through the cross-cutting rollers 30. In the partial corrugated cardboard webs 28, cross-sections 32 are thus produced by the rotationally driven cross-cutting rollers 30, forming corrugated cardboard sheets 33 with corresponding transverse edges (Figure 3). The cross-cutting rollers 30 cut all of the partial corrugated cardboard webs 28.

[0056] Downstream and adjacent to the cross-cutting device 29 is a cross-section detection arrangement 34, which is assigned to the partial corrugated cardboard webs 28 and is capable of detecting the cross sections 32. The cross-section detection arrangement 34 extends transversely to the corrugated cardboard transport direction 27 and across all partial corrugated cardboard webs 28.

[0057] The cross-cutting device 29 is further followed by a conveyor belt 35 on which the corrugated cardboard sheets 33 are guided to a stacking tray 36.

[0058] The corrugated cardboard plant also has a corrugated cardboard plant actuation arrangement 37, which is designed as a corrugated cardboard plant control arrangement and is capable of carrying out a corresponding control of the corrugated cardboard plant.

[0059] As Figure 2 shows, the corrugator operating arrangement 37 is at least temporarily in signal communication with the cross-cutting device 29 and is capable of controlling it to cross-cut the partial corrugated cardboard webs 28. In particular, the cross-cutting rollers 30 can be driven accordingly.

[0060] In addition, the corrugator operating arrangement 37 is at least temporarily in signal communication with a printing arrangement operating unit 38, which is designed in particular as a printing arrangement control unit. The printing arrangement operating unit 38 is a component of the digital printing arrangement 15 or is designed separately from it. The corrugator operating arrangement 37 is capable of transmitting corresponding control signals to the printing arrangement operating unit 38, which relate to the printing process, in particular to print target locations. The printing arrangement operating unit 38, in turn, is capable of controlling the print head device of the digital printing arrangement 15 accordingly, resulting in a corresponding printing process.

[0061] The cross-section detection arrangement 34 is at least temporarily in signal communication with the corrugator operating arrangement 37 and is capable of transmitting position information of the generated cross-sections 32 to the corrugator operating arrangement 37. The corrugator operating arrangement 37 evaluates the desired cross-section positions and the actual cross-section positions. In particular, it compares them with one another.

[0062] If a detected deviation between the target cross-section positions and the actual cross-section positions is too large, the corrugator actuating assembly 37 controls the printing assembly actuating unit 38 such that the deviation is reduced by changing the position(s) of the respective imprint(s) 16. The digital printing assembly 15 prints accordingly. The prepress stages or imprints 16 are produced based on pre-planned speed changes of the cross-cutting device 29. A corrugator speed forms a master or a piece of master information.

[0063] The cross-section detection arrangement 34 is also at least temporarily in signal connection with an experience database 39 and is able to transmit actual cross-section (position) values ​​or information or findings to the experience database 39 for subsequent identical orders or order combinations.

[0064] The corrugator operating arrangement 37 is also at least temporarily in signal communication with the experience database 39 and is capable of receiving corresponding actual values ​​or findings relating, for example, to corresponding setting or operating parameters of the corrugator.

[0065] The experience database 39 is at least temporarily in signal communication with the printing arrangement actuating unit 38 and is, for example, capable of supplying starting parameters of the digital printing arrangement 15 if earlier, identical experience values ​​are already present or stored there.

[0066] The experience database 39 is constantly updated immediately and in a timely manner by the corrugator's control system 37. The experience database 39 is also at least temporarily connected to a production control system 40 via a signal. The experience database 39 is capable of transmitting corresponding experience values ​​to the production control system 40.

[0067] Conversely, the production control 40 is able to receive corresponding actual values ​​from the experience database 37.

[0068] As Figure 3 shows, the cross-sections 32 of the partial corrugated cardboard webs 28 are offset from one another across their width or perpendicular to the corrugated cardboard transport direction 27 for each partial corrugated cardboard web 28. They are offset from one another in the corrugated cardboard transport direction 27, i.e., along the respective partial corrugated cardboard web 28. The offset(s) of the respective cross-section 32 produced by the cross-cutting device 29 is / are due, for example, to the fact that the cross-cutting rollers 30 are arranged, in particular slightly, obliquely to the transported, double-sidedly laminated corrugated cardboard web 23 in order to generally compensate for a cutting offset caused by the rotating cross-cutting rollers 30. Since the cross-cutting knives 31 run in a curved manner around the cross-cutting rollers 30, a scissor cut is created. During the shear cut, the cross-cutting knives 31 briefly clamp the corrugated cardboard web 23 laminated on both sides.the partial corrugated cardboard web 28 at the current cut. The still uncut side is briefly pushed away from the target cutting position, creating the offset across the width of the double-sided laminated corrugated cardboard web 23. As already explained, the offset(s) of the respective cross-section 32 generated by the cross-cutting device 29 is / are also due, for example, to the fact that the partial corrugated cardboard webs 28 are pulled for transport and their respective web tension changes, in particular abruptly, due to the successive cross-cutting of the partial corrugated cardboard webs 28. As Figure 3 shows, each cross-section 32 is designed in a step-like or stair-like manner.

[0069] According to Figure 3, the double-sided laminated corrugated cardboard web 23 has two opposite longitudinal edges 41 and 42, respectively, which extend parallel to each other and to the corrugated cardboard transport direction 27.

[0070] In the first partial corrugated cardboard web 28a adjoining the first longitudinal edge 41 (Figure 3, far left), each partial cross-section 32a produced in this web is ahead in comparison with each partial cross-section 32b of the second partial corrugated cardboard web 28b arranged adjacent to the first partial corrugated cardboard web 28a.

[0071] In the second partial corrugated cardboard web 28b, each partial cross-section 32b produced is ahead of each partial cross-section 32c of the third partial corrugated cardboard web 28c arranged adjacent to the second partial corrugated cardboard web 28b.

[0072] In the third partial corrugated cardboard web 28c, each partial cross-section 32c produced is ahead of each partial cross-section 32d of the fourth partial corrugated cardboard web 28d arranged adjacent to the third partial corrugated cardboard web 28c, which includes the second longitudinal edge 42.

[0073] The partial cross-sections 32a, b, c, d of each partial corrugated cardboard web 28a, b, c, and d run parallel to one another. The partial cross-sections 32a, b, c, d created by a cutting process each form a cross-section 32 in the partial corrugated cardboard webs 28. The partial corrugated cardboard webs 28 are separated from one another by longitudinal cuts 43 formed by the longitudinal cutting units 26. The created longitudinal cuts 43 extend in the corrugated cardboard transport direction 27 and run parallel to one another. Longitudinal edges of the partial corrugated cardboard webs 28 are thus formed. They run perpendicular to the partial cross-sections 32a, b, c, d.

[0074] A configuration without a cross-sectional detection arrangement 34 is also possible, for example. For example, corresponding findings can also come from the experience database 39, from historical data, expert knowledge, or the like.

[0075] A second embodiment is described below with reference to Figures 4 and 5. Identical parts are given the same reference numerals as in the previous embodiment, to whose description explicit reference is hereby made.

[0076] According to this embodiment, the digital printing system 15 is arranged separately from the (actual) corrugated board machine. An unwinding device 48, which is designed, for example, like the third unwinding device 13, is arranged upstream of the digital printing system 15. In use, the unwinding device 48 unwinds a material web 12, which is guided through the digital printing system 15 for printing.

[0077] The digital printing system 15 is followed by a winding device 49, which comprises a rotatably mounted winding roller for winding the, in particular printed, material web 12. The wound material web 12 can be transferred to the corrugated board machine and used there as a third material web 12. The cross-section detection system 34 is at least temporarily signal-connected to the production control system 40 and the corrugated board machine actuation system 37, as well as to a corrugated board machine experience database 45, and is capable of transmitting corresponding cross-section information to them. The production control system 40 serves to control the production of the corrugated board machine and is capable of sending corresponding findings to the corrugated board machine experience database 45 and the corrugated board machine actuation system 37 and receiving actual values ​​from them.

[0078] The corrugator operating unit 37 is again capable of controlling the cross-cutting device 29 accordingly. It is preferably also capable of evaluating the target and actual printing positions.

[0079] The production control 40 of the corrugated board plant is at least temporarily in signal communication with a print assembly production control 46. It is capable of transmitting production information from the corrugated board plant to the print assembly production control 46, which in turn is capable of receiving it. The production control 40 is capable of receiving corresponding print information from the print assembly production control 46. In particular, the production control 40 of the corrugated board plant is capable of transmitting corrugated board plant parameters, such as planned production speed, at least one cross-cutter specification, and / or cutting accuracy for a specific job. The print assembly production control 46 is conversely capable of receiving these. For example, it is capable of transmitting material sheet information, such as the positions of misprints, to the production control 40 of the corrugated board plant.The production control system 40 and the print assembly production control system 46 are preferably arranged spatially apart from one another. Bidirectional data or signal transmission is preferably possible between them.

[0080] The printing assembly production control 46 is at least temporarily in signal communication with the printing assembly actuation assembly 38 and is capable of supplying the printing assembly actuation unit 38 with corresponding information. It is also capable of receiving corresponding printing information from the printing assembly actuation assembly 38.

[0081] The print arrangement production control 46 also receives corresponding print information from a print arrangement experience database 47 and the print position detection device 44.

[0082] An imprint detection arrangement 44 also transmits print image information, for example whether the respective imprint 16 is complete or cut, to the print arrangement actuation unit 38 and the print arrangement experience database 47. The print arrangement actuation unit 38 controls the digital printing arrangement 15 accordingly.

[0083] In this embodiment, a type of adaptation to individual properties of the cross-cutting device 29 is particularly possible, such as crucial properties, the path of the at least one cross-cutting blade, the environment, and / or at least one auxiliary device, such as a vacuum feeder or the like. Furthermore, adaptation to predetermined production parameters, such as the corrugator's speed, is also possible.

[0084] Direct adjustment is possible based on feedback from the printing assembly actuation unit 38 to the digital printing assembly 15. If the reject quantity is too high, the corresponding corrugated cardboard sheets 33 may be re-produced. For this purpose, the corresponding material web(s) have / have an excess length.

[0085] Misprints are preferably marked digitally, which is transmitted directly to the corrugator's production control system 40. Alternatively or additionally, indirect notification via intelligent codes on the corresponding material web is possible.

[0086] Specified production parameters can be read from the corrugated board plant's production control system 40. Possible misprints can also be read from the corrugated board plant's production control system 40, allowing for appropriate rejection. The corrugated board plant's actuation system 37 is again capable of evaluating and comparing target / actual cross-sectional positions. Corresponding information can be transmitted to the corrugated board plant's production control system 40.

[0087] Actual values ​​and findings can be saved in the corrugator experience database 47. The actual cutting positions are fed back to the print layout experience database 47. The corrugator experience database 45 can be updated at any time and in a timely manner.

Claims

Patent claims 1. Printing arrangement for printing a double-sided laminated corrugated cardboard web (23) and / or at least one material web (3, 4, 10, 12) for forming the double-sided laminated corrugated cardboard web (23) with prints (16), wherein the printing arrangement (15) is capable of a) receiving print data relating to the printing, and b) at least one position of at least one of the prints (16) in a longitudinal direction of the web.

2. Printing arrangement according to claim 1, characterized in that it is capable of arranging imprints (16) next to one another and, during transport in a transport direction (27), of printing the imprints (16) arranged next to one another offset from one another in and / or against the transport direction (27) in order to adjust their position in the web longitudinal direction.

3. Printing arrangement according to claim 1 or 2, characterized in that it is capable of arranging imprints (16) next to one another and of adapting at least one position of at least one of the imprints (16) arranged next to one another in dependence on at least one adjacent cross-section (32), in particular one to be produced later.

4. System a) with a corrugated board plant for producing corrugated board, comprising i) at least one device (1) for producing at least one single-sided laminated corrugated board web, ii) a device (19) arranged downstream of the at least one device (1) for producing at least one single-sided laminated corrugated cardboard web in a corrugated cardboard transport direction (27) for producing the double-sided laminated corrugated cardboard web from at least one single-sided laminated corrugated cardboard web (10) and a laminated web (12), iii) a longitudinal cutting device (24) arranged downstream of the device (19) for producing a double-sided laminated corrugated cardboard web in the corrugated cardboard transport direction (27) for longitudinally cutting the double-sided laminated corrugated cardboard web (23) into partial corrugated cardboard webs (28), iv) a cross-cutting device (29) arranged downstream of the longitudinal cutting device (24) in the corrugated cardboard transport direction (27) for cross-cutting the partial corrugated cardboard webs (28) into corrugated cardboard sheets (33) to produce cross sections (32), and v) a Corrugated board plant operating arrangement (37),and b) with at least one printing arrangement (15) according to one of the preceding claims arranged upstream of the cross-cutting device (29). System according to claim 4, characterized by a cross-section detection arrangement (34) arranged downstream of the cross-cutting device (29) in the corrugated board transport direction (27) for detecting the cross sections (32) produced by the cross-cutting device (29). System according to claim 5, characterized by a cross-section position evaluation device which is at least temporarily in signal communication with the cross-section detection arrangement (34) for, Evaluation of desired cross-section positions and actual cross-section positions of the corrugated cardboard sheets (33). System according to claim 5 or 6, characterized in that the cross-section detection arrangement (34) is capable of detecting cross-cutting marks for actuating the cross-cutting device (29).

8. System according to one of claims 5 to 7, characterized in that the cross-section detection arrangement (34) is capable of being in signal communication with the at least one printing arrangement (15) at least temporarily. System according to one of claims 4 to 8, characterized by an experience database (39; 45) for saving actual corrugated cardboard production values ​​for corresponding subsequent corrugated cardboard production orders.

10. System according to claim 9, characterized in that the experience database (39; 45) is at least temporarily in signal communication with the corrugated cardboard plant actuation arrangement (37).

11. System according to one of claims 4 to 10, characterized in that the offset printing of the imprints (16) is adaptable depending on a corrugated cardboard transport speed.

12. System according to one of claims 4 to 11, characterized in that the at least one printing arrangement (15) is capable of printing at least one imprint (16) depending on the cross-cutting device. device (29), in particular as a function of a planned speed change of the cross-cutting device (29) and / or at least one property of the cross-cutting device (29).

13. System according to one of claims 4 to 12, characterized in that the at least one printing arrangement (15) is a component of the corrugated cardboard plant or is arranged upstream of it.

14. Printing process comprising the steps Receiving print data relating to printing on a double-sided laminated corrugated cardboard web (23) and / or at least one material web (3, 4, 10, 12) for forming the double-sided laminated corrugated cardboard web (23), Printing the double-sided laminated corrugated cardboard web (23) and / or at least one material web (3, 4, 10, 12) to form the double-sided laminated corrugated cardboard web (23) with prints (16) using the print data, and Adjusting at least one position of at least one of the prints (16) in a web longitudinal direction.

15. Material web, comprising prints (16) arranged next to one another in the width direction thereof, wherein the prints (16) arranged in a respective line are arranged offset from one another in and / or counter to a material web longitudinal direction.

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