CN103764530B - For controlling the method for the conveying of the printed matter produced in printer - Google Patents

Abstract

The invention relates to a method for controlling the conveyance of printed products (07) produced in a printing press (16), wherein the printed products are fed from an output (17) of a folder (01) of said printing machine to The conveying device (19) of the system (21) for further processing of printed products arranged downstream of the folding machine conveys, wherein at least while continuously reducing the conveying speed of the printing material guided through the printing press ( v06), a signal indicating the current conveying speed of the printing material is transmitted to the transport device of the system for further processing of printed products, wherein printed products are produced from the printing material, wherein the For a previously determined value of the conveying speed of the printing material, the signal indicating the conveying speed transmitted to the conveying device of the system for further processing the printed products is determined independently of the actual conveying speed of the printing material by the setpoint value sensor (27) takes place and transfers to the conveyor of the system for further processing of printed products.

Description

Method for controlling the conveyance of printed products produced in a printing press

technical field

The invention relates to a method for controlling the transport of printed products produced in a printing press.

Background technique

DE 10 2008 013 257 A1 discloses an output module of a printing press with an impeller, wherein the impeller has an impeller bag into which a product provided with at least one crease in a folder can be introduced by means of a conveying device, wherein the conveying device Ability to utilize a speed drive that depends on the speed of the printing press so that the product introduced into the impeller bag of the impeller is not slower or significantly slower at lower printing press speeds than at higher printing press speeds machine speed.

It is disclosed in DE1224751A how to distribute newspapers produced in a fast-running rotary printing press to at least two input devices, which cannot work as fast as the newspapers are thrown from the rotary printing press, wherein, in the first The conveyor belt following the conveyor belt reduces the conveying speed of the newspapers, so that an adaptation to the operating speed of the input device is achieved for the conveyed newspapers.

DD283145A5 discloses a method and apparatus for extracting printed products from a rotary moving impeller of a printing press.

Contents of the invention

The object of the present invention is to propose a method for controlling the conveying of printed products produced in a printing press, wherein the printed products are fed from the output of the folder of the printing press to It is transported to the conveying device of the system for further processing of printed products.

This object is achieved according to the invention as follows: In the method for controlling the conveying of printed products produced in a printing press, printed products are passed from the outlet of the folder of the printing press to a folder arranged downstream of the folder. . Carrier transport of a system for further processing of printed products, wherein at least when the transport speed of the printing material guided through the printing press is continuously reduced, a signal indicating the current transport speed of the printing material is transmitted to the user On the transport device of a system for the further processing of printed products, in which printed products are produced from a printing material, wherein the conveying speed is displayed below a previously determined value for the continuously decreasing conveying speed of the printing material Independently of the actual conveying speed of the printing material, the signal transmitted to the conveying device of the system for further processing printed products is generated by the target value sensor and transmitted to the conveying device of the system for further processing printed products.

The advantages that can be achieved with the invention are, in particular, that the folding machine and the transport devices belonging to or arranged behind the folding machine run completely idle in an accelerated manner, so that at the outlet of the printing press the regulated, participating in the preceding production Afterwards, the depressurized operating state of the printing unit cylinder also allows all printed products belonging to a finished production to reach its system for further processing (for example to the delivery room) and not necessarily be conveyed to a waste collection box as usual. By means of the proposed method, for example approximately 40-50 products can be used for sale per printing batch. Furthermore, through the reduction in waste achieved in this way, printing presses used, for example, in newspaper printing can save many tons of printing material per year, which improves the economics of the printing press.

Description of drawings

Exemplary embodiments of the invention are shown in the drawings and explained in detail below. in,

1 shows a schematic diagram of the process chain of a printing unit of a printing press via its folder to a transport device of a system arranged after the folder for further processing of printed products produced by the printing press;

2 shows a block diagram illustrating a method for controlling the delivery of printed products from the output of a folder of a printing press to a transport device of a system for further processing printed products arranged after the folder;

3 shows three diagrams for illustrating the time characteristic of the conveying speed of the printing material guided through the printing press, the output of the folding machine and possibly the conveying belt and the conveying device of the system for further processing printed products. a graph.

Detailed ways

FIG. 1 shows a simplified diagram of a folder 01 of a printing press 16, wherein the folder 01 has at least one cutting cylinder 02 and, for example, a binding and folding knife cylinder 03 and a folding knife cylinder (Falzklappenzylinder) 04, wherein the printing material 06 fed into the folder 01, in particular designed as a material web, is continuously carried out in the gap between the cutting cylinder 02 and the binding and folding knife cylinder 03 by repeating the separation process at a certain frequency Divided into a large number of successive units 07, wherein these units 07 are conveyed first on the circumference of the binding and folding knife cylinder 03 and then on the circumference of the folding knife cylinder 04, wherein each unit 07 is conveyed on its way from the binding And the transfer of the folding knife cylinder 03 to the folding knife holder cylinder 04 is for example equipped with a transverse folding. However, the folding machine 01 can also be designed in other types of construction and be implemented, for example, without stapling.

Before the printing material 06 fed to the folding machine 01 is preferably in at least one printing unit 11 of the printing press 16 (for example in a printing tower of a rotary printing press designed for multicolor printing and having a plurality of printing units 11 or In a subsection of a rotary printing system consisting of a plurality of printing towers), for example double-sided, each prints with at least one printing image, wherein the at least one printing unit 11 has, for example, double-sided printing which acts on both sides of the printing material 06 A printing unit, wherein each of the two printing units has at least one printing unit cylinder. In a preferred embodiment, each printing unit, which is preferably designed for lithographic printing, has, for example, a transfer cylinder 12 and a plate cylinder 13 associated with the transfer cylinder 12 as printing unit cylinder and has at least one bonding or at least bonding Inking unit 14 on the associated plate cylinder 13 .

On its path from at least one printing unit 11 of a printing press 16 to the folder 01 assigned to this printing press 16, a material web, for example designed as a paper web, is for example cut longitudinally and/or, for example, Vertical folding on the folding former. The material web can also consist of a plurality of sub-belts placed one above the other, wherein each sub-belt, for example in a subsection of a printing press 16 designed as a printing device, is formed of a plurality of printing towers. In each of the other printing towers, at least one printing pattern is used for printing. In the folding machine 01, the individual units 07 formed from the material web by performing a separation process (which are called printed products 07 in the state in which they are printed with at least one printing pattern in the printing unit 11 of the printing press 16 ) is fed, for example by means of a belt system 08, to a rotating or at least rotatable impeller 09, which during its rotation conveys the units 07 or printed products 07, for example in the form of a sheet flow, at the output of the folder 01 17 , wherein the output 17 of the folding machine 01 is designed, for example, as a swivel-driven belt, wherein the printed products 07 are transported at the output 17 of the printing press with the belt at a transport speed v17 .

Starting from the output 17 of the folding machine 01, the individual units 07 or printed products 07 are conveyed individually or in bundles, if necessary via a conveyor belt 18, which is driven in rotation preferably at a conveying speed v18, to the device. The conveyor device 19 of the system for further processing the individual units 07 or printed products 07 downstream of the folder 01 , wherein the conveyor device 19 has, for example, a conveyor chain 22 rotating at a conveyor speed v19 and on this conveyor chain Grippers 23 arranged at a certain distance, wherein these grippers 23 are each individually or in bundled form on the conveyor belt 18 or directly on the folding machine during their movement preset by the conveyor chain 22 Each unit 07 or printed product 07 is clamped on the output end 17 of 01, wherein the gripper 23 is corresponding to its movement that is preset by the conveyor chain 22. Each unit 07 or printed product 07 clamped is used for its further processing . The system for further processing encloses, for example, a dispatch room in which the individual units 07 or printed products 07 are prepared for dispatch. The unsalable units 07 or printed products 07 are transported by the transport device 19 of the system 21 for further processing to the waste collection bin 24 after preferably automatically operating the waste diversion 26 .

The rotation of the printing unit cylinders of the at least one printing unit 11 and the rotation of the cylinders of the folding machine 01, such as the cutting cylinder 02, the binding and folding knife cylinder 03 and the folding knife cylinder 04, are preferably signal-controlled, these The signals are communicated in a virtual, preferably electronic, transmission shaft 29 of the printing press 16 ( FIG. 2 ). The rotation of the printing unit cylinders of the at least one printing unit 11 and the rotation of the cylinders of the folding machine 01 are coordinated and, for example, synchronized with each other by means of at least one control unit 31 via signals communicated in the virtual transmission shaft 29 of the printing press 16 . The at least one control unit 31 for controlling the rotation of the printing unit cylinders of the at least one printing unit 11 and the rotation of the cylinders of the folder 01 is thus connected to the virtual transmission shaft 29 of the printing press 16 via data technology.

Each printing unit cylinder of the at least one printing unit 11 rotates at a speed of eg tens of thousands of revolutions per hour during the continuous printing of the at least one printing unit 11 (ie during its normal production). The production speed of the printing press 16 , defined by the rotation of the printing unit cylinder of the at least one printing unit 11 , corresponds to the transport speed v06 of the printing material 06 guided through the printing press 16 . After the printing job has been completed, the rotating printing unit cylinders of the at least one printing unit 11 involved in the current production are braked, preferably until they come to a standstill. The associated printing unit cylinders of the at least one printing unit 11 are set at or below a certain (for example in the range of 1500-3000 rpm) rotational speed starting from the production speed previously driven during the continuous printing period. In the pressurized operating state, wherein the associated printing unit cylinder no longer transfers the printed image to the printing material 06 in its off-pressurized operating state. After the associated printing unit cylinder has been placed in its depressurized operating state, there are still some printed images that have already been printed on the printing material 06 on its path from the associated printing unit 11 to the folder 01 and there are still some The printed products 07 already produced in the folding machine 01 are located on their path to the output 17 of the folding machine 01 , wherein these printed products produced starting from the depressurized operating state of the associated printing unit cylinder 07 is also transferred from the output of the folder 01 to the transport device 19 of the system 21 for further processing. This operating state of the associated printing unit 11 and folder 01 is referred to as idle.

Mainly also due to the rotation of the printing unit cylinders of the at least one printing unit 11 and the rotation of the cylinders of the folding machine 01 involved in the previous production, during this dry run the printed products 07 are fed to the system 21 for further processing The delivery of the transport device 19 becomes increasingly poor, because in particular the printing material 06 which is guided through the printing press 16, the output 17 of the folding machine 01, the conveyor belt 18 if necessary and the system 21 for further processing v17; v18; v19 no longer match each other as before during the continuous printing of the printing press 16, even if it can be set so that at least when the printing material 06 guided through the printing press 16 (from When the conveying speed v06 of the printed product 07) in this printing material is continuously reduced, the folding machine 01 transmits a signal indicating the current conveying speed v06 of the printing material 06 to the transport device 19 of the system 21 for further processing of the printing material 07 . Furthermore, it is fundamentally uneconomical if the printed products 07 produced after the depressurized operating state of the relevant printing unit cylinders, but whose product quality is still salable, are only transported to the waste product by the transport device 19 of the system 21 for further processing. In the collecting box 24 (as has been the case in practice until now), only because at the point in time when the pressure-free operating state of the relevant printing unit cylinder was adjusted, the production quantity on the basis of the printing order, for example, had already been fulfilled in terms of printed products.

Therefore, it is proposed that when falling below a previously determined value (this value refers to the continuous reduction of the printing material 06 after the current production has been completed or after the production quantity on which the current printing job is based has been reached, and in particular during the empty run The conveying speed v06 of the printing material 06), the signal indicating the conveying speed v06 transmitted to the conveying device 19 of the system 21 for further processing of the printed product 07 is generated independently of the actual conveying speed v06 of the printing material 06 by the target value sensor 27 and transmitted to Transport device 19 of system 21 for further processing of printed products 07 . Here, the signal generated by the target value sensor 27 is preferably transmitted for a defined duration to the transport device 19 of the system 21 for further processing of the printed products 07, in particular at least after all printed products 07 produced by the printing press 16 have been transferred from the fold The output terminal 17 of page machine 01 is output before.

Figure 2 illustrates this method. Folding machine 01 (that is, the control unit corresponding thereto, which controls the cylinders of the folding machine 01, that is, such as the rotation of the cutting cylinder 02, the binding and folding knife cylinder 03 and the folding knife holder cylinder 04) and the described At least one printing unit 11 , ie the corresponding control unit which controls the rotation of the printing unit cylinder of this printing unit 11 , is each connected to a virtual transmission shaft 29 of the printing press 16 . In a preferred embodiment, the folder 01 , ie its control unit, transmits a signal indicating a preferred number of the current conveying speed v06 of the printing material 06 to the conveying device 19 controlling the system 21 for further processing of the printed products 07 On the control unit, a switching device 28 is provided for this signal on the path from the folder 01 to the system 21 for further processing printed products 07 , eg in association with the folder 01 . The transmission of the signal indicating the current conveying speed of the printing material 06 to the control unit of the transport device 19 of the system 21 for further processing of the printed products 07 takes place, for example, in that the control unit of the transport device 19 is also connected to the virtual system of the printing press 16. on the conduction shaft. As long as the conveying speed v06 of the printing material 06 is greater than a previously determined value, the signal from the folder 01, which indicates the current conveying speed v06 of the printing material 06, is passed on by the switching device 28, preferably directly, to the further processing of the printed product. 07 on the conveyor 19 of the system 21. When the conveying speed v06 of the printing material 06 drops below a previously determined value, the switching device 28 is switched to another signal channel and is therefore used to transfer the signal from the folder 01 to the further processing of the printed product 07 The connection of the transport device 19 of the system 21 is interrupted. When the connection for transmitting signals between the folder 01 and the transport device 19 of the system 21 for the further processing of printed products 07 is separated by switching of the switching device 28 to another signal path, the target value sensor 27 is Transport device 19 of system 21 for further processing printed products 07 provides a signal simulating transport speed v06 of printing material 06 , which is generated by target value sensor 27 independently of actual transport speed v06 of printing material 06 . For the transport device 19 of the system 21 for the further processing of the printed products 07 , a change of the signal source effected by switching of the switching device 28 on another signal channel preferably remains imperceptible. A signal of this type (which displays a fictitious conveying speed v06 of the printing material 06 independent of the actual conveying speed v06 of the printing material 06 ) is supplied to the conveying device 19 of the system 21 for the further processing of the printed product 07 for a defined duration. This is maintained, in particular at least until all printed products 07 produced by the printing press 16 are output from the output 17 of the folder 01 . This value (at which the switching device 28 switches to another signal path for displaying the conveying speed v06 of the printing material 06 will preferably be the connection between the folder 01 and the system 21 for further processing of the printed product 07 The direct connection disconnection between conveying device 19) can for example be located in a range, and this range is related to the rotational speed (it is by participating in the production so far, the printing device cylinder of described at least one printing unit 11 at 1500-3000 rev/min implementation within the scope) corresponding.

The delivery of the printed product 07 from the output 17 of the folder 01 of the printing press 16 to the transport device 19 of the system 21 for further processing the printed product 07 arranged downstream of the folder 01 can be designed as follows: Although the printing material 06 The conveying speed v06 of the folding machine 01 falls below the previously determined value, the conveying speed v17 of the output 17 of the folder 01 and the conveying speed v18 of the conveyor belt 18 if necessary are first maintained at a fixed value, wherein, for display printing The switching device 28 for the signal of the conveying speed v06 of the material 06 switches the preferably direct connection between the folding machine 01 and the conveying device 19 of the system 21 for further processing of the printed products 07 and the target value sensor 27 starts to transmit its signal to When on the transport device 19 of the system 21 for further processing of the printed products 07, the fixed values correspond to, for example, the transport speed v17; conveyor belt 18. In addition, it can also be arranged that, for example, at time point t3 (FIG. 3, at this time point, the last printed product 07 is output from the impeller 09 to the output end 17 of the folding machine 01), the output end of the folding machine 01 The conveying speed v17 of 17 and optionally the conveying speed v18 of the conveyor belt 18 even rises, at least for a limited time, to values significantly higher than the fixed values described above.

Likewise, the conveying speed v19 of the conveying device 19 of the system 21 for the further processing of the printed products 07 can initially remain at a fixed value despite the further reduced conveying speed v06 of the printing material 06 being lower than the previously determined value, wherein The value of the conveying speed v19 of the conveying device 19 of the system 21 for further processing printed products 07 can also correspond to the value obtained at a point in time, for example, for the conveying device 19 of the system 21 for further processing printed products 07 , At this point in time, the switching device 28 for signaling the conveying speed v06 of the printing material 06 switches the connection between the folding machine 01 and the conveying device 19 of the system 21 for further processing of the printed products 07 to the nominal value. The value sensor 27 serves as a signal source and the target value sensor 27 initially transmits its signal to the transport device 19 of the system 21 for further processing the printed products 07 . After the last printed product 07 from the output 17 of the folder 01 reaches the transport device 19 of the system 21 for further processing the printed product 07 and is picked up there, for example, by a gripper 23 arranged on a conveyor chain 22 , It can be provided that the conveying speed v19 of the conveying device 19 of the system 21 for further processing of printed products 07 is raised to a higher value, for example to double its value, at least for a limited time, by This enables the printed products 07 to be conveyed more quickly, for example to a delivery room or, if necessary, to the waste collection box 24 .

FIG. 3 shows three illustrations of the respective transport speeds v06; v17; v18; v19 relative to the printing material 06 guided through the printing press 16, the output 17 of the folding machine 01 such as a belt designed as a revolving belt and the necessary Graphs a), b) and c) of the time behavior of the conveyor belt 18 and the transport device 19 of the system 21 for further processing printed products 07. The course of time t is, for example, subdivided into a plurality of successive subsections A; B; C; D; E. In the first subsection A, the at least one printing unit 11 of the printing press 16 is operated at its production speed in continuous production. For example, at time t1 the control unit 31 begins to continuously reduce the conveying speed v06 of the printing material 06 as the production quantity for the printed products 07 to be produced as the basis for the current printing job is reached. In the second subsection B starting at time t1, the rotational speeds of the cylinders of the printing units involved in the production and the rotational speeds of the cylinders arranged in the folding machine 01 are initially reduced, preferably synchronously, to their respective standstill. Before reaching its rest state, the printing unit cylinders involved in the production are placed in their depressurized operating state at time t2, so that the relevant printing unit cylinder no longer transfers the printing image to the printing material 06 . This point in time t2 corresponds to the rotational speed of the printing unit cylinders involved in the production, for example in the range of 1500-3000 rpm. At time t2, the transmission of the signal indicating the current conveying speed v06 of printing material 06 to conveying device 19 of system 21 for further processing of printed products 07 is interrupted via switching device 28 and setpoint value sensor 27 starts to simulate it The signal of the transport speed v06 of the printing material 06 is transmitted to the transport device 19 of the system 21 for the further processing of the printed products 07 . Previously, the signal indicating the current conveying speed v06 of the printing material 06 was transmitted, for example, from the folding machine 01 , preferably completely directly by means of the switching device 28 , to the conveying device 19 of the system 21 for further processing of the printed products 07 . After the switching device 28 interrupts the transmission of the signal indicating the current conveying speed v06 of the printing material 06 to the transport device 19 of the system 21 for further processing the printed products 07 , the actual conveying speed v06 of the printing material 06 continues to decrease to zero. However, the conveying speed v17 at which the printed products 07 are conveyed on the output end 17 of the folder 01 and, if necessary, the conveying speed v18 of the conveyor belt 18 and the conveying device 19 of the system 21 for further processing the printed products 07 The conveying speed v19 of the printing material 06 does not continue to decrease proportionally to the conveying speed v16 of the printing material 06 , but in each case remains constant at a fixed value at least for a certain period of time, which is shown in the third section C. The chronological time of this third segment C can exceed the point in time at which the cylinders of the printing units involved in the previous production reached their standstill. The end of the third segment C can be marked as follows: at this point in time t3 the impeller 09 outputs the last printed product 07 cut and folded in the folder 01 on the output 17 of the folder 01 . From this point in time t3, the conveying speed v17 of the output 17 of the folder 01 and, if applicable, the conveying speed v18 of the conveyor belt 18 increases, at least for a limited time, to a significantly higher value than the previously described fixed values. Numerically, the fourth subsection D is thus introduced. The values of the ascending conveying speed v17 of the output 17 of the folder 01 and optionally the ascending conveying speed v18 of the conveyor belt 17 can each be, for example, five to ten times their initial speed. After the last printed product 07 from the output 17 of the folder 01 reaches the transport device 19 of the system 21 for further processing printed products 07, the transport device 19 of the system 21 for further processing printed products 07 can also be The conveyor speed v19 was raised to a higher value. For example, the conveying speed v19 can be doubled, such as from 10,000 to 20,000 revolutions per hour. At the end of the fourth segment D, the conveying speed v17 of the output 17 of the folder 01 and possibly the conveying speed v18 of the conveyor belt 18 are reduced to zero at time t4. After the transport device 19 of the system 21 for further processing printed products 07 has delivered all printed products 07 belonging to a previous printing job, the transport device 19 can also be brought to a standstill in the fifth section E, for example.

List of reference signs

01 Folding machine

02 cutting drum

03 Binding and folding knife roller

04 Folding Knife Holder Roller

05-

06 Printing material

Unit 07; Printed Products

08 belt system

09 impeller

10-

11 printing units

12 transfer roller

13 plate cylinder

14 Inking device

15-

16 printing presses

17 output

18 conveyor belt

19 transport device

20-

21 Systems for further processing

22 conveyor chain

23 holder

24 waste collection boxes

25-

26 waste fork

27 rated value sensor

28 switching device

29 conduction shaft

30-

31 control unit

t time

t1 time point

t2 time point

t3 time point

t4 time point

v06 conveying speed

v17 delivery speed

v18 delivery speed

v19 delivery speed

Section A

Section B

C segment

D segment

E segment

Claims (10)

1. A method for controlling the delivery of printed products (07) produced in a printing press (16), wherein the output of printed products (07) from a folder (01) of said printing press (16) The end (17) is conveyed to the transport device (19) of a system (21) for further processing of printed products (07) arranged after the folder (01), wherein, at least in the continuous reduction through the When the conveying speed (v06) of the printing material (06) guided by the printing machine (16) is selected, the signal showing the current conveying speed (v06) of the printing material (06) is transmitted to the machine for further processing of the printed product (07) On the transport device (19) of the system (21), wherein the printed product (07) is produced from the printing material (06), wherein the , previously determined values, the signal transmitted to the conveyor (19) of the system (21) for further processing of printed products (07) and the actual The conveying speed ( v06 ) of is generated independently by the target value sensor ( 27 ) and transmitted to the transport device ( 19 ) of the system ( 21 ) for further processing of printed products ( 07 ). 2. The method as claimed in claim 1, characterized in that the signal generated by the target value sensor (27) is passed on for a defined duration to the system (21) for further processing of the printed product (07) on the transport device (19). 3. The method according to claim 1 or 2, characterized in that the signal generated by the setpoint value sensor (27) is at least for all printed products (07) produced by the printing press (16) from the The output ( 17 ) of the folding machine ( 01 ) is passed on to a transport device ( 19 ) of a system ( 21 ) for further processing of printed products ( 07 ) before output. 4. The method as claimed in claim 1 or 2, characterized in that the signal showing the current conveying speed (v06) of the printing material (06) is used in the virtual transmission axis (29) of the printing press (16) In the case of communication with the transport device (19) of the system (21) for further processing of printed products (07). 5. The method as claimed in claim 1 or 2, characterized in that the signal indicating the current conveying speed (v06) of the printing material (06) is conducted to the further processing of the printing material using a switching device (28). product (07) on the conveyor (19) of the system (21). 6. The method according to claim 5, characterized in that the switching device (28) disconnects the folder (01) from the transport device of the system (21) for further processing of printed products (07) (19) for transmitting said signal and switching to said nominal value sensor (27 )superior. 7. The method according to claim 5, characterized in that the switching device (28) switches over a value to the signal source for the signal for displaying the conveying speed (v06) of the printing material (06). On the said rated value sensor (27), said numerical value is located in a range, and said range is in the range of 1500-3000 rev/ The range of minutes performed corresponds to the rotational speed. 8. The method according to claim 5, characterized in that, although the conveying speed (v06) of the printing material (06) drops below a previously determined value, the printed product (07) is The delivery speed (v17) of the delivery (17) of the output (17) and/or the delivery speed (v19) of the transport device (19) of the system (21) for the further processing of the printed products (07) is respectively maintained at a fixed value superior. 9. A method according to claim 8, characterized in that at the point in time when the last printed product (07) is output on the output (17) of the folder (01), the folder The conveying speed ( v17 ) of the output ( 17 ) of ( 01 ) is increased to a higher value than the previously determined value. 10. The method as claimed in claim 8, characterized in that the conveying speed (v19) of the transport device (19) of the system (21) for further processing of printed products (07) comes from the folder at the last The printed products ( 07 ) at the output ( 17 ) of ( 01 ) are increased to a higher value after reaching the transport device ( 19 ) of the system ( 21 ) for further processing of the printed products ( 07 ).