Method for operating a system consisting of a digital printing machine and a folding machine, system of such machines and production method for variable orders

Abstract

The invention relates to a method for operating a system consisting of a digital printer and a folding machine. The digital printer generates varying print orders on the basis of corresponding order data. The folding machine further processes the print orders provided to it by folding, cutting and / or creasing the sheets. The folding machine is set up for each order. A plurality of orders which are further processed with the same or similar settings for further processing, respectively, are automatically grouped into respective series of mutually following orders. A series-specific set of settings for the folding machine is predetermined and digitally stored for each series. The series are generated in succession with the digital printer and further processed on the folding machine with the series-specific set of settings which is automatically provided, respectively. The invention also relates to a system consisting of a digital printer and a folding machine and a production method for automatically producing varying orders of printed and coded print products in a digital printer and further processed in a further processing machine.

Description

Technical Field

[0001] This invention relates to a method for operating a system comprising a digital printing press and a folding machine. The invention also relates to a system comprising a digital printing press and a folding machine and a production method for automatically producing varied orders of printed products that are printed and encoded in the digital printing press and further processed in a further processing machine.

[0002] This invention belongs to the technical field of the graphic industry, and particularly relates to the industrial manufacturing of folded or high-quality, high-volume folded products (e.g., brochures) of flexible, sheet-like printed materials, preferably made of paper, cardboard, cardboard, plastic or composite materials, especially printed paper. Background Technology

[0003] Industrial folding machines known in the art for manufacturing folded products from sheet-like printed materials (e.g., paper) preferably have multiple devices, such as cutting stations and / or folding stations, and conveying devices for moving the folded products. The cutting station may, for example, include a cutter shaft. The folding station may, for example, be a bag-type folding device and / or a knife-type folding device for producing preferably multiple creases. The conveying station may, for example, be a roller conveyor with inclined conveyor rollers. Such folding machines typically also include a feeder (e.g., a stacking feeder) for the sheets to be folded and a receiver for the folded products. The sheets to be folded are preferably conveyed to the first folding device in a stream, particularly preferably in a scaly stream.

[0004] The sheets can also be conveyed between folding units in a so-called scale-like manner, which is possible in high-end machines. Such folding machines also include a machine controller in the form of a digital computer, with control software.

[0005] Digital printing presses are also known in the prior art. These can be designed as inkjet printers and include, for example, a feeder, multiple printing units for multicolor printing (especially CMYK printing), and a receiver for printing sheets.

[0006] Printed sheets can be transferred from the digital printing press to a folding machine for further processing. During this process, the sheets may also have edge trimmings, and the trimmed edges can be removed. DE1253033B demonstrates the use of air blowing to remove edge trimmings, which includes mechanical guiding elements, with air blowing only assisting in the removal, specifically via an air cushion. This document does not describe whether the air blowing can be adjusted or turned off depending on the format.

[0007] It is also known in the prior art to provide barcodes for pages in digital printing presses and to automatically read the barcodes in the feeder of folding machines, thereby identifying when production orders change and stopping the folding machines for manual setting changes.

[0008] From the perspective of graphic product manufacturers (e.g., printing plants with prepress, actual printing, and postpress processing stages), there is always a desire to improve (i.e., significantly increase) production speed while maintaining or improving product quality as much as possible. Furthermore, there is a desire to further automate production, saving on operators, thereby reducing costs and maintaining competitiveness. Summary of the Invention

[0009] Therefore, one objective of the present invention is to provide improvements over the prior art, particularly those that increase the productivity of machines used in the system (or combination) for manufacturing and processing printed products.

[0010] This task is solved according to the present invention by the operating method according to the preferred technical solution, the machine system (or machine assembly) according to the preferred technical solution, and the production method according to the preferred technical solution.

[0011] The present invention relates to a method for operating a system (or combination thereof) comprising at least one digital printing press and at least one folding machine, wherein the digital printing press generates varying orders for printed products based on corresponding order data, and the folding machine further processes the printed products provided to it by folding, cutting, and / or creasing sheets, and wherein the folding machine is configured for each order, characterized in that: multiple orders (each further processed with the same or similar settings for further processing) are automatically aggregated into their respective consecutive order series; a series-specific set of settings for the folding machine is pre-given and digitally stored for each series; the series are sequentially generated by the digital printing press and further processed on the folding machine using their respective automatically provided series-specific set of settings.

[0012] The present invention also relates to a system (or combination thereof) comprising at least one digital printing press and at least one folding machine, wherein the system further comprises at least one digital computer, characterized in that: the system is operable to perform the method according to the present invention, wherein the computer transmits order data to the digital printing press and transmits a series of specific settings to the folding machine.

[0013] The present invention also relates to a production method for automatically producing changing orders, the orders relating to printed products printed and encoded in a digital printing press and further processed in a further processing machine, characterized in that: both the digital printing press and the folding machine operate in a "push-to-stop" mode under computer control, wherein order series of the same or similar orders are generated under computer control and are provided with changing codes, and are further processed sequentially with changing series-specific settings when the codes change.

[0014] Advantageous and therefore preferred extensions of the invention are derived from alternative technical solutions, as well as the specification and drawings.

[0015] This invention advantageously improves the productivity of machine systems used for manufacturing and processing printed products. It is advantageously applicable to printing plants with machine combinations suitable for printing and post-press processing.

[0016] Another advantage of this invention is that standardized production orders can be defined and digitally stored for combinations of printing and post-press processing. These orders can then be assigned to appropriate machines by a central (workflow) computer and initiated on them. The relevant machines then preferably operate in a so-called "push-to-stop" mode. Each machine also preferably has its own machine computer.

[0017] The term "push-to-stop mode" in this application should be understood as follows: if a machine, such as a digital printing press or a further processing machine, particularly a folding machine, operates in this mode, preferably many or all of its settings are under computer control, and the operator only needs to intervene, for example, when a production error or quality error is identified. Such intervention can be stopping the machine, making manual setting changes, or restarting the machine. Because such errors are very rare in highly automated production processes, production can typically proceed uninterrupted across multiple orders in "push-to-stop" mode. Ideally, the machine will not stop at all and will produce automatically and continuously. It is also conceivable that the machine itself identifies setting changes that must be made manually. In this case, the machine can automatically stop production and alert the operator to the need for setting changes. The operator can also be instructed on which changes to make, where, and how. Afterward, the machine can continue production.

[0018] The term "system" (or "combination") in this application should be understood as follows: if two or more machines are used together to produce printed products, i.e., if a first machine performs at least one first production step (e.g., printing) and a second machine performs at least one second production step (e.g., further processing, particularly cutting and / or folding), then these two or more machines form a (machine) system or (machine) combination. Preferably, the two machines are provided with the necessary data by a common computer. This computer may be a workflow computer for the printing plant's workflow.

[0019] The term "[for further processing] same or similar settings" should be understood in this application as follows: same settings are settings that are completely identical and unchanged in two or more orders when further processing is carried out; similar settings are settings that require only minor changes in settings in the further processing of two or more orders, and can therefore be completed with the same settings without loss of quality.

[0020] For standard orders, operators require little to no intervention in a favorable manner. Manual settings changes may only be necessary for a few special orders.

[0021] Other general advantages include: operability for non-skilled personnel; no operator error in parameter input; quick switching between different orders; and the ability to handle a large number of different folded and cut products without operator intervention.

[0022] In particular, air blowing offers other advantages for edge cutting: automatic on / off without operator intervention; more flexible positioning than mechanical scrapers due to the smaller installation space required; and the solution is suitable for installation under existing protective covers.

[0023] The following describes preferred extensions of the present invention as operating methods (hereinafter referred to as "extensions"). These extensions can also be combined with each other where they are not technically mutually exclusive.

[0024] One extended solution may feature the transfer of sheets from the receiver of a digital printing press to the feeder of a folding machine. This can be done manually or preferably automatically, for example using a conveyor or robotic arm. It may be specified that each sheet carries a printed code, generated in the digital printing press using printing techniques, such as ink printing. This code is previously digitized in the prepress stage and is preferably integrated into the image to be printed, for example, in its edge area. It may be specified that the code is designed as a barcode or QR code or a sequence of characters and / or numbers. It may be specified that the code is located in the edge area of ​​the rear edge of the sheet to be processed. It may be specified that the code is preferably automatically detected in the feeder of the folding machine. It may be specified that detection is performed using a camera or sensor. The camera or sensor may be mounted on the suction head of the feeder. The camera or sensor may be arranged above the sheet transport plane and oriented downwards. It may be specified that the code is used to provide a series-specific set of settings required for each further processing. It may be specified that the series-specific set of settings changes automatically when the code changes. This coding may include, for example, an ID that identifies a print order or even an individual printed page within a print order. It can be specified that the folding machine operates in a "push-to-stop" mode, meaning the folding machine automatically processes changing orders sequentially without operator intervention. It can also be specified that the operator stops the folding machine's automatic processing in "push-to-stop" mode upon detecting an error.

[0025] One extended solution may feature that the sheet has an edge cut in the folding machine. This edge cutting is preferably performed longitudinally, i.e., along the conveying direction of the sheet. The edge cutting is preferably performed on both sides, for example, using a circular cutter. It may be specified that the sheet has an edge cut first, and then is folded. It may be specified that the edge strips generated during edge cutting are removed. It may be specified that air is used to remove the edge strips. It may be specified that at least one air tube is used for directional air blowing, preferably one tube at each longitudinal edge of the conveying sheet. It may be specified that the air supply is automatically activated, deactivated, or maintained when the code changes. It may be specified that the air tubes are adjusted according to the format of the sheet to be processed, preferably automatically or manually. It may be specified that the format setting is automatically changed or maintained when the code changes.

[0026] The following describes preferred extensions of the invention as machine systems (hereinafter referred to as "extensions"). These extensions can also be combined with each other where they are not technically mutually exclusive.

[0027] One extended embodiment may feature that the folding machine has at least one station designed as a cutter shaft station and / or a bag-type folding station. It may be specified that the station includes at least one cutter shaft that can be automatically activated and deactivated. The cutter shaft may be equipped with a circular cutter or two or more circular cutters; alternatively, tools for punching or creasing may also be present on each shaft. The cutter shaft may be ordered-specifically positioned and fixed, preferably automatically or manually. It may be specified that the station includes multiple cutter shafts equipped with different cutters, for example, for different standard orders. It may be specified that the station includes multiple cutter shafts designed for sheets of different widths. It may be specified that the automatic activation and deactivation of the cutter shafts is performed through at least one setting, which is part of a series-specific set of settings. At least one actuator may be used here. It may be specified that the bag-type folding station is located after the cutter shaft station.

[0028] One extended embodiment may feature that the folding machine has a feeder for the sheets to be processed. It may be specified that the feeder is designed as a flat-pile feeder. It may be specified that the feeder includes a camera or sensor for detecting printed codes on the sheets.

[0029] One extended embodiment may feature a folding machine with a receiving unit. The receiving unit may include a separating device that handles varying orders in such a way that these orders can be separated from each other for further processing. Separation may be achieved, for example, by changing the feed rate of the sheets, thereby causing a change in spacing. Therefore, the separating device may be a controllable conveying device, such as a conveyor belt or conveyor rollers. The separating device may act longitudinally and / or laterally along the sheet conveying direction. The separating device may be automatically activated and deactivated. The automatic activation and deactivation of the separating device may be specified through at least one setting, which is part of a series of specific settings.

[0030] One extended embodiment may feature that the folding machine has at least one air blowing pipe. It may be specified that the air blowing pipe has an opening for discharging blown air. This opening is preferably located at the lower end of the pipe. It may be specified that the air blowing pipe has multiple openings for discharging blown air. It may be specified that the air blowing pipe is adjustable according to the width of the sheet to be processed, preferably automatically or manually. It may be specified that the air blowing pipe is supplied with blown air through a conduit, and the conduit is equipped with a valve that can be automatically activated and deactivated. It may be specified that the automatic activation and deactivation of the valve is performed through at least one setting, which is part of a series of specific settings. The blowing can be controlled in this way according to the rhythm of the sheet to be processed.

[0031] One extended solution is characterized by the automatic activation and deactivation of the valve being coordinated with the automatic activation and deactivation of the cutter shaft. Specifically, it can be stipulated that the automatic activation and deactivation of the valve and the automatic activation and deactivation of the cutter shaft occur simultaneously.

[0032] The following describes preferred extensions of the present invention as a production method (hereinafter referred to as "extensions"). These extensions can also be combined with each other where they are not technically mutually exclusive.

[0033] One extension scheme may feature: performing edge cutting and removing the resulting edge strips by means of air blowing, wherein the air blowing supply is automatically activated, deactivated, or maintained when the encoding changes.

[0034] The specific extension of this invention is as follows.

[0035] The controller selects an order and loads the corresponding program via coding. Some manual settings may be required, but these are displayed to the operator. With the loaded program, one of the three cutter shafts in the cutter shaft station (typically) is engaged, while unused cutter shafts remain detached. These three cutter shafts are equipped differently to perform three different machining processes. They can vary in width (e.g., edge cutting for A4 and A3 on front-to-back cutter shafts) and differ in machining method (cutting, punching, or indentation). Pre-stored orders read from the coding are matched with pre-set cutter shafts. The corresponding cutter shaft is raised or lowered by recognizing the barcode. Cutter shafts can also be set independently of the program to set extended programs not included in the standard pre-defined ones. In the second station, the bag folding device, there are also, for example, three cutter shafts, which can preferably be set by the controller like the cutter shafts in the cutter shaft station. It includes one front cutter shaft and two rear cutter shafts. The actual folding device has, for example, six bags. Different folding patterns can be achieved (examples: four pages folded vertically and horizontally, six pages folded via Z-fold or roll fold, and six pages folded via Z-fold, roll fold, accordion fold, or double parallel fold). Separation occurs at the take-up point, making it easier to separate different orders on the take-up receiver. When the "push-to-stop" operation is interrupted (and a new program may be loaded), the take-up receiver waits for the last page and then adjusts the separation mechanism. When the machine automatically restarts, subsequent pages continue to be collected on the take-up receiver with a lateral offset relative to the previous pages.

[0036] The equipment components for air-blowing removal of edge cutters include, for example, a maintenance unit, an electromagnetically controlled pneumatic valve, an air-blowing tube with a clamping bracket, and a guide plate for guiding the paper strip after it has been blown out. An optional maintenance unit with a filter limits the pressure from the compressed air supply. The valve opens or closes to activate or deactivate the air-blowing according to a program. Two air-blowing tubes are positioned directly behind the cutter on the front cutter shaft of the station. Each air-blowing tube generates a point-like airflow that blows upwards toward the cut edge cutter and presses the paper strip downwards. The downward-deflected paper strip strikes the guide plate and is guided out of the machine. The air-blowing assists in conveying the paper strip by flowing along the guide plate and accelerating it from behind. The air-blowing is only activated when the machine is running and the front cutter shaft is in the lowered position. The controller monitors these two conditions and opens or closes the air-blowing accordingly. Attached Figure Description

[0037] Figures 1 to 3 Preferred embodiments of the invention and its extensions are shown. Corresponding features are indicated by the same reference numerals in the figures. For clarity, repeated reference numerals are omitted in the figures.

[0038] Figure 1 A schematic diagram illustrating a preferred embodiment of the system according to the invention during operation or production is shown.

[0039] Figure 2A perspective view showing a preferred embodiment of a pair of air tubes of a folding machine in a system according to the present invention.

[0040] Figure 3 A cross-sectional view of a preferred embodiment of a cutter shaft station of a folding machine in a system according to the present invention is shown. Detailed Implementation

[0041] Figure 1 The system (or assembly) of the production machine 1 shown for industrial manufacturing of graphic products includes at least one digital computer 2 with a digital memory 3, at least one digital printing press 10, and at least one further processing machine 20, particularly a folding machine. Here, the computer 2 is connected to the machines 10 and 20 via at least a connection 2a (wired or wireless) for control and / or data transmission and / or settings. The computer 2 is preferably a workflow computer. The production machine 1 also preferably has its own machine computer to operate the respective machines.

[0042] Digital printing press 10, particularly inkjet printing press, produces printed products 4, which are output as pages 4a with format 4b, and then undergo further processing. Further processing machine 20 processes the pages 4a provided to it (see transfer 81) and produces further processed printed products 4c, which are also output. Digital computer 2 provides the required order or its order data 5, along with the required associated settings 5a, to machines 10 and 20.

[0043] According to the invention, series 6 of identical or similar orders or order data 5 are aggregated, and each series 6 is provided with a series-specific set 6a of the settings 5a. To identify when series 6 changes or when the settings set 6a must be automatically changed, each page 4a is printed with a detectable code 7. This code can identify the product (i.e., may include an ID, for example) and can be used to retrieve the corresponding settings (e.g., by ID). Therefore, production is highly automated and can operate in a "push-to-stop" mode. The initiator 8 for the "push-to-stop" mode present on the computer 2 is therefore not required to be activated under normal circumstances. For example, it is conceivable that two or more identical orders a ("jobs") require the same settings A, and two or more identical orders b require the same settings B. These jobs are then preferably automatically aggregated into series [aa...a] with settings set A and series [bb...b] with settings set B. A job c similar to b, having setting C, can be integrated into a series [bb...bc] having setting set B, where c is processed with setting B; or integrated into a series [bb...bc] having setting set BC, where the process switches from B to C before processing job c.

[0044] The digital printing press 10 includes a feeder 11 for the substrate to be printed (preferably sheets or alternatively rolls) and a receiver 12 for sheets 4a (possibly cut from the rolls). Printing takes place in a series of printing devices 13, particularly in inkjet printing devices, for example, for CMYK or CMYKOGV colors. The further processing machine 20 also includes a feeder 21 for sheets 4a and a receiver 22 for printed products 4c.

[0045] A camera 30 or sensor 30 is arranged in the feeder 21 to detect the corresponding code 7 of page 4a and transmit it to the computer 2. In this way, it is possible to identify when order 5 changes, i.e., when to process page 4a with the changed code 7. In this case, if necessary, the computer 2 can transmit the changed settings set 6a to the further processing machine 20. Alternatively, if two orders are processed with the same settings, the settings can remain unchanged. Therefore, when the code changes, it is possible to check whether the settings need to be changed.

[0046] The further processing machine 20 includes multiple stations 40, particularly a cutter shaft station 41 and a bag-folding station 42, the latter having a folding device 43 with folding rollers and folding bags. The cutter shaft station 41 has multiple cutter shafts 50 on which (circular) cutters 50a are mounted. The cutter shafts 50 can be engaged and disengaged by their respective actuators 50b, and perform positioning movements 50c. Engaged cutter shafts 50 can, for example, perform edge cutting 51, thereby cutting edge strips 52 from the sheet 4a and feeding them into the waste disposal device 53.

[0047] The edge strip 52 can be removed by air blowing. For this purpose, air blowing pipes 60, each with its own opening 61 for discharging air 62, can be arranged near the cutter 50a. Both the cutter 50a and the air blowing pipes 60 can preferably be adjusted according to format 4b. For varying edge cuts 51, the computer 2 can engage the appropriate cutter shaft 50 via a controllable actuator 50b. Similarly, the computer 2 can activate or deactivate air blowing-assisted removal of the edge strip 52 via a controllable valve 64 in the conduit 63 of the air blowing pipe 60. Therefore, one advantage is that the pipe 60 does not need to be removed; it only needs to be deactivated.

[0048] For a changing order 5, the computer 2 can control the separation device 70 to separate the printed products 4c of each order from one another.

[0049] Downstream of the receiver 22, a robot 91 with a movable robotic arm may be arranged to pick up printed products 4c or stacks of such products and, for example, place them on a pallet.

[0050] The further processing machine 20 is shown in a linear fashion. However, preferably, a turning station for a 90° turn around a horizontal axis can also be provided at position 90. The sheet can be conveyed to the front guide and then continue to be conveyed parallel to that direction. In this way, edge cutting can be performed either longitudinally (before turning) or perpendicular to the longitudinal direction (after turning).

[0051] Figure 2 A pair of air-blowing pipes 60 for edge cutting on both sides of sheet 4a are shown. Each pipe 60 has an opening 61 at its lower end, through which air 62 is directed onto the edge strip 52 to be removed. Air is supplied through respective conduits 63, each conduit including a controllable valve 64 (shown only on one of the pipes). The pipes 60 can be arranged and secured in corresponding positions in the machine for edge cutting by means of clamping brackets 65. Guide plates 66 for the edge strip 52 are also arranged at the lower end of the brackets.

[0052] Figure 3 The installation position of such an air-blowing pipe 60 is shown. Edge cutting 51 is performed by two cutter shafts 50, wherein at least the upper cutter shaft can be activated or deactivated by actuator 50b (see positioning motion 50c). An air-blowing pipe 60 and at least two guide plates 66 are provided for removing the edge strip 52 from the sheet 4a. The edge-cut sheet 4a is supplied to the first roller 42a of the folding device 43.

[0053] List of reference numerals in the attached diagram: 1 Production Machine System 2 Digital Computers 2a connection 3 Digital Memory 4 Printed Products Page 4a 4b page format, especially the width 4C further processed printed products 5. Orders or order data 5a settings 6. A series of identical or similar orders or order data 6a series specific settings set 7-code 8. Starter for "Push to Stop" mode 10 digital printing press 11 Feeder 12-piece receiver 13 Printing equipment, especially inkjet printing equipment 20 further processing machines, especially folding machines 21 feeder 22 Collector 30 cameras or sensors 40 stations 41 Cutter Shaft Station 42-bag folding station 42a Folding Roller 43 Folding device with folding roller and folding bag 50 tool axis 50a cutting tools 50b actuator 50c positioning motion 51. Edge cutting or edge cutting position 52 edge strips 53 Waste Disposal 60 air hose 61 opening 62 blow air 63 pipeline 64 valves 65 clamping bracket 66 guide plate 70 Separation Device 80 conveying direction 81 transfer 90° turn 91 Robot.

Claims

1. A method for operating a system comprising at least one digital printing press and at least one folding machine, wherein the digital printing press (10) generates varying orders for printed products (4) based on corresponding order data (5), and the folding machine (20) further processes the printed products (4) supplied to it by folding, cutting, and / or creasing sheets (4a), and wherein the folding machine (20) is configured for each order, characterized in that, Multiple orders (5) that are further processed using the same or similar settings (5a) for further processing are automatically aggregated into their respective series (6) of mutually following orders (5). For each series (6), a series-specific set of settings (6a) for the folding machine (20) is pre-given and digitally stored, and The series (6) is generated sequentially by the digital printing press (10) and further processed on the folding machine (20) using series-specific settings (6a) provided automatically.

2. The method according to claim 1, characterized in that, Each page (4a) is provided with a printing code (7), which is generated in the digital printing press (10), and This code (7) is used to provide a series of specific settings (6a) required for further processing, and When the code (7) changes, the series-specific settings set (6a) changes automatically.

3. The method according to claim 1 or 2, characterized in that, The folding machine (20) operates in "push to stop" mode (8), in which the folding machine (20) automatically and without operator intervention processes changing orders (5) sequentially.

4. The method according to any one of claims 1 to 3, characterized in that, The page (4a) has an edge cut (51) in the folding machine (20), and The edge strip (52) produced during edge cutting (51) is removed, wherein air blowing (62) is used to remove the edge strip (52), and The air supply is automatically activated, deactivated, or maintained when the code (7) changes.

5. The method according to claim 4, characterized in that, The air blowing pipe (60) is set according to the format (4b) of the page to be processed (4), and The format settings are automatically changed or maintained when the encoding (7) changes.

6. A system comprising at least one digital printing press and at least one folding machine, wherein the system (1) further comprises at least one digital computer (2), characterized in that, The system (1) is capable of performing the method according to any one of the preceding claims, wherein the computer (2) transmits order data (5) to the digital printing press (10) and transmits series-specific settings (6a) to the folding machine (20).

7. The system according to claim 6, characterized in that, The folding machine (20) has at least one station (40), which is configured as a cutter shaft station (41) and / or a bag-type folding station (42), and The station (40) includes at least one tool axis (50) that can be automatically activated and deactivated, and Automatic activation and deactivation of the cutter shaft (50) is performed through at least one setting, which is part of a series-specific settings set (6a).

8. The system according to claim 6 or 7, characterized in that, The folding machine (20) has a feeder (21) for the sheets (4a) to be processed, and The feeder (21) includes a camera (30) or sensor (30) that detects the printed code (7) on the page (4a).

9. The system according to any one of claims 6 to 8, characterized in that, The folding machine (20) has a receiver (22), and The receiver (22) includes a separating device (70) that processes changing orders (5) in such a way that these orders can be separated from each other for further processing, and The separation device (70) can be automatically activated and deactivated, and Automatic activation and deactivation of the separation device (70) is performed through at least one setting, which is part of a series-specific settings set (6a).

10. The system according to any one of claims 6 to 9, characterized in that, The folding machine (20) has at least one air blowing pipe (60), and The air blowing pipe (60) is supplied with air through the pipe (63), and There is a valve (64) in the pipeline (63) that can be automatically activated and deactivated, and The automatic activation and deactivation of the valve (64) is performed through at least one setting, which is part of a series-specific set of settings (6a).

11. The system according to claim 10, characterized in that, The automatic activation and deactivation of the valve (64) are coordinated with the automatic activation and deactivation of the cutter shaft (50).

12. A production method for automatically producing variations of printed products (4) printed and encoded in a digital printing press (10) and further processed in a further processing machine (20), characterized in that, Not only the digital printing press (10) but also the folding machine (20) is operated in a "push to stop" mode (8) under computer control, in which order series (6) of the same or similar orders (5) are generated under computer control and have varying codes (7) and are further processed in sequence with varying series-specific settings (6a) when the codes (7) change.

13. The production method according to claim 12, characterized in that, The edge is cut (51) and the edge strips (52) generated in the process are removed by means of air blowing, wherein the air supply is automatically activated, deactivated or maintained when the code (7) changes.

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