EP1283765B1 - Device for processing printed packaging or similar substrates - Google Patents

Abstract

The system is designed with tool parts (7,8), effective on the substrate with its passage in the gap between the processing rollers (4,5). One processing roller (4) is provided with at least one gripping unit (9), for a correctly recorded transport of the substrate. The at least one gripping unit is provided on the lower processing roller.

Description

The invention relates to a device for punching printed cardboard, cardboard packaging, envelopes o. Like substrates according to the preamble of claim 1.

Known devices for processing printed substrates (US-PS-4,604,083) are an integral part of one Sheet-processing printing press, being formed by means of respective sliding elements a printed substrate inserted between rotating processing rollers for punching and by means of located on the cylinder circumferential surface Stamping tool parts is processed. A correct registration Superimposition of print image and finishing stage is only with high technical effort possible and the machining accuracy disadvantageous affected.

The invention addresses the problem of a device for punching printed material, in particular Packaging materials or the like. To create substrates that as an additional unit for largely any printing press can be used through a positionally accurate takeover of the substrate an improvement in the machining accuracy enables in sheet printing and quickly on changing Machining contours of different substrates is adjustable. An apparatus according to the preamble of claim 1 in U.S. Patent 3,383,991.

The invention solves this problem with a device with the characterizing features of claim 1. Regarding essential further design features reference is made to claims 2 to 17.

The device according to the invention for punching already printed substrates is with two known processing rollers provided, at least one in the area of their peripheral tool part a gripper has with which to be transported as a substrate Printed sheets both registered and in one transport position between the processing rollers according to the register is introduced.

The rotating processing rollers with the integrated Grippers thus form a functional unit, so that with the device a finishing of the substrate by punching possible in a processing line with printing is. It is also conceivable that the scope of the device enhanced with embossing and / or punching processing (s) is. The substrate can be, for example, from a the device upstream printing machine immediately so be taken over that this printing press and the finishing device Can be operated synchronously at high speed are. This creates a register-based stacking of the printed image with the processing contour of the subsequent tool parts achieved and with improved Accuracy are also different substrates with changing Machining contours can be machined after short changeover times, so the productivity of the processing line is increased overall by process bundling.

Fig. 1

eine Prinzipdarstellung der Vorrichtung zum Stanzen von zu veredelndem Material mit einer den Abfall aufnehmenden Entsorgungseinheit,

Fig. 2

eine vergrößerte Ausschnittsdarstellung der Vorrichtung im Bereich der Bearbeitungswalzen. mit einer Gegenwalze,

Fig. 3

eine Vorderansicht der unteren Bearbeitungswalze mit der Gegenwalze,

Fig. 4

eine vergrößerte Ausschnittsdarstellung der beiden Bearbeitungswalzen im Bereich des Greifers,

Fig. 5

eine Draufsicht auf ein bogenförmiges Veredelungsmaterial mit Anordnung auszustanzender Kartonteile,

Fig. 6

eine Prinzipdarstellung der Vorrichtung in einer zweiten Ausführungsform als separate Bearbeitungsstation,

Fig. 7 und Fig. 8

jeweilige Prinzipdarstellungen der Vorrichtung im Bereich der Zuführvorrichtung,

Fig. 9

eine vergrößerte Ausschnittsdarstellung einer Zahnradverbindung im Bereich des Antriebs der Bearbeitungswalzen,

Fig. 10

eine Seitenansicht der Vorrichtung ähnlich Fig. 1 mit einem Ablagezylinder im Bereich der Auslegevorrichtung, und

Fig. 11

eine Prinzipdarstellung ähnlich Fig. 7 mit einem an die Stanzvorrichtung anschließenden zweiten Bearbeitungsmodul.

Further details and advantageous effects of the invention result from the following description and the drawings which illustrate two exemplary embodiments of the device according to the invention. The drawing shows:

Fig. 1

1 shows a schematic diagram of the device for punching material to be refined with a waste disposal unit,

Fig. 2

an enlarged sectional view of the device in the region of the processing rollers. with a counter roller,

Fig. 3

a front view of the lower processing roller with the counter roller,

Fig. 4

2 shows an enlarged detail of the two processing rollers in the area of the gripper,

Fig. 5

2 shows a plan view of an arched finishing material with an arrangement of cardboard parts to be punched out,

Fig. 6

2 shows a basic illustration of the device in a second embodiment as a separate processing station,

7 and 8

respective basic representations of the device in the area of the feed device,

Fig. 9

2 shows an enlarged detail of a gear connection in the area of the drive of the processing rollers,

Fig. 10

a side view of the device similar to FIG. 1 with a storage cylinder in the region of the delivery device, and

Fig. 11

a schematic diagram similar to FIG. 7 with a second processing module connected to the punching device.

In Fig. 1 is a device generally designated 1 for punching one of single sheets as finishing material formed substrate 2 (Fig. 5) shown. In particular are printed cardboard, cardboard packaging, envelopes, Folding boxes, blister cards, corrugated cardboard and multi-ply Substrates provided by a stamping and / or Breakout process to be processed. That in shape of the individual sheets 3 to be processed substrate 2 is in a feed direction A (Fig. 4) between two rotating Machining rollers 4, 5 introduced and as they pass experienced in the working gap 6 effective tool parts 7 and 8 the substrate 2 its processing.

In the device 1 designed according to the invention at least one of the processing rollers 4, 5 with at least provided a gripper 9 (Fig. 2), which is a registered Detection of the substrate 2 and its precise fit Transport through the device 1 enables.

1, 2 and 6 are embodiments of the device 1 shown, the lower formed as a matrix roller Processing roller 4 two arranged offset by 180 ° Has gripper 9, 9 '. It is also conceivable that only one the gripper 9, 9 'on the lower processing roller 4 (Die) and / or on the upper processing roller 5 (Male) is provided (not shown).

In an expedient embodiment, a gripper 9, 9 'is in a circumferential transverse channel 11 of the processing roller 4 mounted gripper bar 12 is provided, which is essentially over the entire width B of the respective roller 4 extends (Fig. 3). At the ends of the transverse channel 11 Gripper bar 12 adjustable in the area of a support axis 10 established.

The enlarged detail representation according to FIG. 2 illustrates that the device 1 directly on the receiving side adjacent to a feed device 13 by means of also consisting of different finishing materials Substrates 2 can be fed in register. The feeder 13 is in turn as a register-compliant discharge unit a sheet printing machine, not shown subordinate, this in particular as an offset printing press can be trained.

The feeder 13 or 34 (Fig. 6) includes respective ones Gripper 14, the substrate 2 each from the sheet printing machine take over and the gripper 9 or 9 ' Processing roller 4 in a transfer direction C (Fig. 2) respectively. It is in a synchronized movement phase the modules a position P (Fig. 1) as a transfer position reached. This transfer position P of the substrate 2 towards the gripper 9, 9 'of the processing roller 4 is both through a register adjustment in the area of upstream sheet printing machine as well as a corresponding Adjustment of the grippers 14 of the feed device 13 optimally adjustable. With this register adjustment in the area of the printing press is an adjustment of the Grippers 9, 9 'in the area of the roller 4 can be dispensed with, so that on the device 1 does not affect its stability Control elements are required.

Of functional importance for the accuracy of the finishing process in the device 1 is an exact setting the gripper 9, 9 'and the gripper 14 to each other. The grippers 14 of the feed device 13 pass through Transfer area (at P) to the movement path D of the Gripper 9, 9 'of the processing roller 4 so approximate movement path E that in the handover and takeover in the area P the substrate in phases simultaneously from the gripper 14 of the feed unit 13 and the gripper 9 or 9 'of the processing roller 4 is held. In the area of the transfer position P act the grippers 9 and 14 on a transfer path of for example 1 to 5 mm together, this way can be adjusted in register to a dimension of ± 0.01 mm.

The illustration according to FIG. 2 clarifies that the feed unit 13 in the area of your sheetfed press (not shown) facing end with a painting and / or Dryer unit 15, 16 is provided for the substrates.

On the other hand, the device 1 is the one being processed Laying device 18 taking over substrate 2, in the area of which after a punching process as Processing waste 19 designated part of the sheet 3 (Fig. 5) receiving, designated 20 in total is arranged (Fig. 1). It is planned a shredding device 24 into the respective waste parts 19 via conveyor pipes 25, for example in a Fall direction R, fed and then via pipes 25 'in a bunker 26 can be derived. It is also conceivable that Delivery pipes 25, 25 'to a central disposal unit (not shown) to connect.

The shredding device provided as a disposal device 24 acts across a building ceiling 30 Conveyor pipe 25 together with the device 1, these in the vicinity of the processing rollers 4, 5 facing end 21 connected to the delivery device 18 is. The delivery device 18 advantageously has a vacuum cup 22 (Fig. 4) with which a separation of the substrate 2 and the waste parts 19 (Fig. 5) reached becomes. The laying device is in a practical embodiment 18 provided with a table 23, the top of the Receives substrates 2 (Fig. 5, right side) and transported away. At its receiving end 21, the Table 23 together with the lower processing roller 4 a passage gap 28, in the area of a downward directional passage (arrow F) of through the processing generated waste 19 to the shredding device 24 is achieved in that it is still firmly in the gripper 9th held waste part 19 taken in the direction of arrow F. is and at F 'in the delivery pipe 25 (Fig. 2). At the discharge end of the working gap 6 that is as a good part remaining substrate 2 via a spread separated from the waste part 19, the substrate 2 for example on a dash-dot line in FIG. 4 illustrated web 27 reaches the table 23. This Spreading and transport can advantageously be supported be that over a not shown Device a blowing or suction air flow on the substrate 2 or the waste part 19 is directed.

The enlarged individual representation according to FIG. 4 illustrates that the at least one gripper 9, 9 'of the processing roller 4 with a respective circumferential register adjustment device 31 is provided, by means of which the grippers 9, 9 ' by a pivoting movement (arrow S, Fig. 4) and precisely fitted around the central longitudinal axis M of the roller 4 can be.

In addition to this adjustment option S, an adjustment option can be used the processing roller carrying the gripper 9 4 can be provided, this one not shown Side and / or diagonal register adjustment devices having. An adjustment according to Arrows H and K are executed (arrow H: diagonal register; Arrow K: side register). It is also conceivable that both processing rollers 4 and 5 the above-described register adjustments S, H and K.

For flexible use of the device described above 1 are the processing rollers 4, 5 in the area of Tool parts 7, 8 with interchangeable machining tools Mistake. For their quick replacement can the processing rollers 4, 5 advantageously from each Magnetic cylinders are formed on which the machining tools 7, 8 in the form of punching, creasing, punching and / or Embossing tools are set.

It is also conceivable that one of the processing stages described above, in particular a perforation of the substrate 2, integrated on the processing line in accordance with the register Additional device (not shown) realized is, this in front of or behind the device 1 in the processing sequence is provided.

The overall concept of the device 1 also provides that the processing rollers 4 and 5 individually, as a whole or can be replaced together (arrow L, Fig. 1, Fig. 6). The embodiment of the device 1 according to FIG. 2 shows an arrangement of a counter pressure roller 35 in the area the processing roller 4 is arranged. The processing rollers 4, 5 or the counter-pressure roller 35 can after Kind of a cassette so integrated into a machine frame 40 be that in a transverse direction L '(Fig. 3) the individual or joint removal is possible and thus the respective Machining tools 7, 8 or the entire punching cassette or the punching tools are particularly easy to replace are.

6 is in a second embodiment the device 1 'as one independent of the register an associated printing machine 32 effective unit illustrates, from the printing press 32nd removed substrate 2 by means of a conveying process, fed for example by a conveyor belt 33 from a register roller 34 detected, in register between the two processing rollers 4, 5 inserted and then with the delivery unit 18 of a further finishing and / or Stacking unit 36 is fed. It is conceivable also that this off-line unit with painting and / or Dryer assemblies similar to units 15, 16 in FIG. 6 is equipped.

In Fig. 7 is a possibility of constructively changed Parts of the system shown with a rolling Cutting with rotary punching can be achieved. at this procedure is particularly important when punching of cross lines reduced load peaks so that a Machining with low punching pressure is done so frequent adjustment of the tools is avoided and For the first time, slimmer punch cylinders (rolls 4, 5) were also used can be. These components show Diameter to width ratio of 1: 1 or less as 1: 1, for example 1: 1.2; 1: 1.4 and so on. This Size relationships in the area of the processing rollers 4, 5 allow an optimal combination of such devices with conventional printing presses, for example Sheetfed offset presses, the inclination and thus achieved lower punching pressure is particularly advantageous are effective. The processing rollers can thus in their Format (circumference x width) should be dimensioned so that this is the same as the format of the image-bearing printing cylinders.

The feed unit 13 feeds the substrate from the printing press 32 in the area of the processing rollers 4, 5, such as this is already shown in more detail in FIGS. 2 and 6. For the transfer of the substrate in area P is the gripper bar 9 provided in the embodiment according to FIG. 7 with a helix angle 69 on the processing roller 4 is mounted in an inclined position. This slant can with an axial tilt (tilt angle 70) in the range a feed roller 71 cooperate so that a rolling Transfer and takeover of the substrate is reached. This comes with a corresponding inclination between the processing rollers 4 and 5 so inserted and transported that a rolling cut achieved without sudden stress on the punching tools can be. With an angle 69 'is an additional one Inclination in the area of the processing roller 5, for example an oblique position of the punching plate, shown, taking care of all of the slopes and tilts a helix angle of 0.5 ° as practical has highlighted.

8 and 9 is a basic concept of a drive concept in the area of the printing machine 32, the feed unit 13 and the punching device 1. there are two servo drive motors 72 and 72 'for securing a synchronous drive with a contactless one Gear connection 73 (Fig. 9) provided, the Gears with a constant even during the drive phase Intermesh distance 74, 74 'without contact. The teeth only come into contact when a control error, for example in the area of software could lead to an undesired overloading of the system and an immediate shutdown of the drive torque is required becomes. With this gear connection 73 is the fuse the system against destruction, in particular the Gripper 9, achieved with little effort.

In Fig. 10, the device 1 '' is opposite to the 1 modified component arrangement behind the processing rollers (4, 5), whereby the device 1 '' in addition to that already in FIGS. 4 and 5 shown punching and breaking out of the substrate also can be used to punch it. During this punching process grips the gripper 9 in the manner described above and Way the substrate and this gripper position is by keep the corresponding machine control until the substrate the processing nip between the two processing rollers 4 and 5 has passed and the intended Cutting lines or the like are introduced into the substrate. In 10 shows a substrate 2 'with a broken line, that works in its full arc length the working gap 6 'has happened and after this processing a handover or takeover described in more detail below he follows.

The gripper bar 9 has during this holding and processing phase that shown in Fig. 10, comprising approximately 180 ° Rotational position reached and now comes together with the substrate in the area of a storage cylinder 55, which in turn is provided with grippers 55 ', for example punched substrate takes over in register. This storage cylinder 55 is part of a delivery device 18 'with which the stamped Substrate as an intermediate product Z to a delivery conveyor belt 57 moved there, placed on it for further transport (Arrow 57 ') and at the end of the line at W for finishing provided. It is also conceivable that the substrate 2 '(line representation) in the device 1' 'already was punched in full length and on one downstream processing unit (not shown) Substrate in waste part 19 and finished part (so-called Benefit) is shared (Fig. 5).

10 is also for Punching and breaking out provided, however, the waste part 19 (FIG. 5) with the gripper 9 holding it is taken to the storage cylinder 55 and by means of whose gripper 55 'reaches the delivery conveyor belt 57. This Delivery conveyor belt 57 is through the machine control changed in its conveyor angle 56 so that a substantially horizontal conveying direction is adjustable 10 with a dashed line is clear. At the End of the delivery conveyor belt 57, the waste 19 from the Disposal device 20 taken over. For one later punching process indicated by the machine control is the conveyor belt 57 with little effort in the inclined Swiveling position (arrow 56).

The device 1 ″ has arms 18 and 57 optional assemblies that do not have any displacements open a three-way display of components. In addition to a display of the substrate without a punch or finishing processing can also the punched Intermediate Z or the punched out benefit separate waste are transported on.

The device 1 ″ can be in an expanded version in the area of the processing rollers 4, 5 with a for laser punching provided provided laser processing unit T. his.

FIG. 11 shows a basic illustration of FIG. 7, similar to FIG Punching device 1 with inclined (angle 69, 69 ', 70 according to FIG. 7) roller bodies 4, 5 and 71, with upstream the punching device 1 a second processing module 80 is provided. The punch cylinder pair 4 and 5 as well a pair of cylinders 81 and 82 are each rectangular arranged to the machine longitudinal axis so that a Passage of the substrate in direction A (Fig. 4) reached becomes. Will not be closer to this system according to FIG. 11 Punching plates shown each obliquely on the front and rear punching cylinder pair 81, 82 or 4, 5 clamped, so there is between the respective top and Lower cylinders a rolling cut for the Cross lines. The prerequisite for this is that the substrate or the sheets are in the same inclination as the punching plates be guided through the device.

The advantage of this system is that for the cylinder pairs 4, 5 and 81, 82 provided processing plates can be manufactured in normal geometry and none Reduction of usable punching areas on the substrate arise. When working with full punch cylinders, punch half shells or tools are the punching lines elaborated twisted by the helix angle.

When passing through the unprinted substrate, this turns on its front edge is gripped by the gripper Printing station 32 out and by means of printing units on itself known manner printed (left side, Fig. 11). Then this is also on the front edge of Grippers held in the substrate provided as the conveyor 33 Chain delivery 83 or the register roller 34 (Fig. 6) detected and the device 1 and 80 in the area of lower punch cylinder 4 or 82 with the diagonally mounted Hand over gripper. It is in the field of processing rollers 4, 5 or 81, 82 the drive side to the respective Operating side in height around the helix angle (dash-dot representations in Fig. 11), so that the Gripper bar of the lower processing roller (s) the corresponding Inclined and the necessary oblique transfer takes place when processing the substrate.

Located on the axially parallel transfer cylinders 84 and 85 the gripper bars, not shown, also mounted obliquely, so that in module 80 a harmonic Transfer of the substrate lying at an angle in the transport direction he follows. In the area of a subsequent boom 86 the substrate is in a direction extending in the conveying direction A. Position "not twisted" recorded by the boom 86 also around the helix angle (dash-dot representation) is shifted. The helix angle is 0.5 ° for each of the components described above, their arrangement means that the substrate on the Boom 86 is moved parallel to the conveying direction.

Claims (18)

1. Device for finishing and processing, in particular for cutting and punching, printed cardboard, cardboard packaging, corrugated board, paper or similar sheet like substrates (2) through a rotary punching process, wherein the substrate (2) can be inserted in the feed direction (A) between two rotating processing rollers (4, 5) and is processed during passage by tool parts (7, 8) which are effective in the working gap (6), in that the substrate (2) is separated into at least a waste portion (19) and a finished part, wherein a processing roller (4) with at least one gripper (9) is provided for register-controlled transport of the sheet like substrate (2), characterized in that means are provided at the end of the working gap facing the discharge side for splitting off and separating the finished part from the waste portion (19).
2. Device according to claim 1, characterized in that the gripper (9) holds the waste portion (19) after processing and removes it from the working gap (6).
3. Device according to claim 1 or 2, characterized in that the waste portion (19) is held and removed from the working gap (6) by means of suctioning and/or pressurized air.
4. Device according to any one of the preceding claims, characterized in that a discharge device (18; 18') for accepting the finished part and a disposing device (20) for accepting the waste portion (19) are disposed downstream of the processing rollers (4, 5).
5. Device according to any one of the preceding claims, characterized in that a vacuum suction device (22) and/or a pressurized air system are disposed in the region of an end (21) of a discharge device (18) facing the processing rollers (4, 5) to assist in separating the finished part from the waste portion (19).
6. Device according to any one of the preceding claims, characterized in that a laser processing unit (T) is disposed proximate the processing rollers (4, 5).
7. Device according to any one of the preceding claims characterized in that modules are provided having selectively applicable discharge devices (18, 57) which facilitate three-fold discharge options without having to displace components, such as a discharge (57) of the substrate (2) without processing or of a pre-punched intermediate product (Z), a discharge (57) of a waste portion (19) separated from a punched-out finished part, and a discharge of the finished part.
8. Device according to any one of the preceding claims, characterized in that it is connected, in the region of the delivery roller (55), to a discharge conveyer band (57) whose conveying angle (56) can be adjusted.
9. Device according to any one of the preceding claims, characterized in that a feed device (13) is disposed directly before the device at the reception side thereof by means of which the substrates (2) can be supplied in a registered manner.
10. Device according to any one of the preceding claims, characterized by a downstream discharge device (18; 18') which receives the punched-out substrate (2) or receives same (2') as an initially punched intermediate product (Z), and a downstream disposing device (20) receiving the processing waste (19).
11. Device according to claim 10, characterized in that the disposing device (20) has a vacuum suctioning unit (22) disposed in the region of the end (21) of the discharge device (18) facing the processing rollers (4, 5) and/or a blowing air system for supporting separation of the substrate (2) from the waste (19).
12. Device according to claim 10 or 11, characterized in that the discharge device (18) comprises a table (23) whose upper side receives the finished parts (27) and transports them away and defines, at its receiving end (21) and together with the lower processing roller (4), a passage gap (28) for downward passage (arrow F) of the waste part (19), produced through punching, to the disposing device (20).
13. Device according to any one of the claims 10 through 12, characterized in that a discharge conveyer band (57) is provided as discharge device (18') whose conveying direction (angle 56) can be changed and which cooperates with a delivery roller (55) accepting the substrate (2') from the lower processing roller (4) as an intermediate product (Z).
14. Device according to any one of the claims 10 through 13, characterized in that a substrate (2') which has been processed over its entire length can be transferred to the delivery roller (55) through grippers (55').
15. Device for punching of in particular printed substrates (2) through processing rollers (4, 5; 81, 82) according to any one of the preceding claims, characterized in that the substrate (2) can be processed in the region of the processing rollers (4, 5; 81, 82) via a rolling stamped-line travel.
16. Device according to claim 15, characterized in that the processing rollers (4, 5; 81, 82) have a ratio of diameter to width of 1:1 or less, e.g. 1:1.2; 1:1.4 etc.
17. Device according to any one of the preceding claims, characterized in that both of the processing rollers (4, 5) have a register adjustment means (S, H, K) for adjusting the peripheral, the diagonal and the lateral register.
18. Device according to any one of the preceding claims, characterized in that the processing rollers (4, 5) cooperate with a delivery roller (55) which is disposed downstream thereof and which receive at least part of the substrate (2).

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