EP3694718A1

EP3694718A1 - Sheet-processing machine comprising a sheet transport device, and method for transporting sheets from a sheet-guiding cylinder to a sheet conveyor system

Info

Publication number: EP3694718A1
Application number: EP18782712.6A
Authority: EP
Inventors: Volker Kessler; Volker Taschenberger; Michael Koch; Arndt Jentzsch
Original assignee: Koenig and Bauer AG
Current assignee: Koenig and Bauer AG
Priority date: 2017-10-13
Filing date: 2018-10-02
Publication date: 2020-08-19
Anticipated expiration: 2038-10-02
Also published as: CN111225797B; CN111225797A; WO2019072650A1; EP3694718B1

Abstract

The invention relates to a sheet-processing machine comprising: a sheet transport device having a sheet conveyor system (3, 4) receiving sheets from a sheet-guiding cylinder (2); a gripping device (3) for the clamped fixing and transporting of a front edge of a sheet; and at least two peripheral sheet support segments (6) simultaneously holding the sheet on the lateral cylinder surface of the sheet-guiding cylinder (2), and/or pneumatic fixing devices (10) for the sheet rear end. The aim of the invention is to provide an alternative sheet-processing machine comprising a sheet transport device and an alternative method for transporting sheets. In particular, the aim is to further improve the transfer of sheets from a sheet-guiding cylinder to a downstream sheet conveyor system. According to the invention, the problem is solved by pneumatically connecting the pneumatic fixing devices (10) to a compressed air generator.

Description

Sheet processing machine with a sheet transport device and method for transporting sheets from a sheet guiding cylinder to a sheet conveying system

The invention relates to a sheet-processing machine with a sheet transport device with a sheet from a sheet guiding cylinder receiving sheet conveying system and a method for transporting sheets from a sheet guiding cylinder to a sheet conveying system in a sheet-processing machine.

It is known from DT 2 025 849, DE 73 03 778 U and DE 28 13 136 A1 to assign sheet guiding cylinders additional sheet support elements which contact the sheets only in certain areas. The disadvantage is that the drums are solid and therefore dynamically unfavorable. Next, the adjustment effort is great.

From US 2,965,026, DT 1 761 714, DT 2 002 877, DT 25 18 334 B1 and GB 2 256 426 A, it is known to form support disks of sheet guiding drums with adjustable contact elements. The disadvantage is that the adjustment effort is large and not rationally feasible for rapid job change to sheet-processing machines.

From DE 35 35 621 A1 and DE 196 44 01 1 A1 it is known to displace flat arch support segments on chains to below the periphery of sheet guiding drums. The disadvantage is that these sheet guiding drums are not suitable for the sheet transport of freshly painted sheets in the delivery of a sheet-processing machine.

From DE 10 2004 031 171 A1 and already DE 517 004 it is known to bow by adjustable pressure-free side edges suction discs of a cylinder jacket surface to decrease. The vacuum required to hold the sheet edges is generated by a pump and transmitted via a rotary valve on the sprocket main shaft. The rotary valve takes over the timing of the suction air. The disadvantage is that this rotary valve usually works without contact and very large amounts of leakage air are drawn. Furthermore, high demands are placed on the rigidity of the assembly, since even the slightest deformation leads to a change in the gap between the rotor and the stator, as a result of which the leakage losses become unacceptable or result in unwanted contact and thus heavy wear. Thus, high demands are placed on the adjustment during assembly due to the desired minimum gap widths in conjunction with the need to exclude a touch. Although there is the possibility not to perform the rotary valve contactless, but this is associated with a high wear of the mutually rubbing components, especially in the charged with powder delivery. A further disadvantage is the fact that the rotary valve and the point of action (sucker) are not immediately adjacent to each other, which leads to quite long suction lines, which must be evacuated at each clock. Especially with high-speed machines with cycle times of 180 ms and below, these systems are threatening to become sluggish. Another disadvantage is that the suction discs must have an axial extent due to design, requiring relatively large pressure-free side edges. This reduces the usable arch area.

From DE 10 2005 002 509 A1, DE 10 2013 224 489 A1 and DE 10 2015 204 1 13 A1, it is known to press the sheets mechanically or pneumatically against support disks of the delivery drum after a transfer center. The disadvantage is that a mechanical or pneumatic support must be adjusted consuming. For a secure hold of the bow, a certain axial extension of the support disks is required.

From DE 100 14 417 A1, DE 10 2004 051 323 A1, DE 10 2004 052 656 A1, DE 10 201 1012808 A1 and DE 10 2004 009 703 A1, it is known to take sheets from a printing cylinder by means of a delivery drum having support disks , The sheet trailing edge is held by an over the maximum format width reaching, suction cups having traverse. The disadvantage is that the traverse to take over the sheet trailing edge is large and thus dynamically unfavorable. The traverse reduces the available arch area and high leakage losses occur.

The invention has for its object to provide an alternative sheet processing machine with a Bogentransportvornchtung and an alternative method for sheet transport. In particular, a sheet transfer from a sheet guiding cylinder to a downstream sheet conveying system should be further improved.

According to the invention the object is achieved by a device having the features of an independent device claim or a method having the features of an independent method claim. Advantageous embodiments will become apparent from the dependent claims, the description and the drawings.

The invention has the advantage that an alternative sheet processing machine with a sheet transport device and an alternative method for sheet transport are provided. In particular, a sheet transfer from a sheet guiding cylinder to a downstream sheet conveying system is further improved.

A sheet transport device can be used within a sheet-processing machine, for example a sheet-fed printing machine, or in a delivery of a sheet-processing machine, for example a sheet-fed printing press. A sheet conveying system can be designed, for example, as a sheet guiding drum and, in particular, can be arranged between two printing cylinders of a sheet-fed printing press. Accordingly, a sheet-processing machine, in particular a sheet-fed printing machine, with a corresponding sheet transport device is also provided. Preferably, the sheet conveying system includes a delivery drum, in particular in the delivery of a sheet processing machine is used. In this case, the delivery drum particularly preferably contains a sprocket shaft in order to move the gripping devices, in particular gripper carriages of a chain conveyor system, to take over sheet leading edges.

For example, when printing on sheet-fed presses even in pressure-free areas small amounts of color are transferred from the plate on the blanket cylinder on the printing cylinder. In places where no sheet rests on the printing cylinder, these small amounts of ink remain on the printing cylinder, where they can build up over a long time. In washing processes, these can be larger amounts. Sheet support segments that are constantly in contact with the impression cylinder will become dirty over time. This also applies to the back of the sheet support segments when not printing straight maximum size. It is therefore advantageous to format the support elements or contact elements which come into contact with a sheet in the region of a sheet guiding drum or delivery drum.

Preferably, suction takes place exclusively at the sheet trailing edge or at the rear corners. Thus, the lateral sheet support segments or support elements can be made very narrow, which in turn leads to advantageous very narrow pressure-free side edges. For example, the sheet support segments may be formed in the space between gripper carriage as a bracket or bracket to which a traction means, in particular a chain is guided, which is at least partially occupied by preferably elastic support elements, preferably such that these elements only in Area of the lateral sheet edges between gripper carriage and fixing devices, in particular suckers, are. When adjusting a fixing device, in particular a nipple, on the correct arc length, the traction means, in particular the chain, preferably adjusted with. Thus, when moving to a smaller format length, the excess support members can be advantageously "stored" in a region where they are not in contact with the sheet. Advantageously, the support elements are used only at the points where there is still a substrate, in particular paper, between these support elements and the cylinder surface. The support elements are thus protected against contamination.

Preferably, the support elements contact only substrate material and never the dirty printing cylinder surface of a printing cylinder of a sheet-fed press. The entire device is thus much less susceptible to dirt and thus low maintenance. In the case of exclusively supporting arch support segments, the possibility of using particularly narrow support elements particularly preferably results, it being shown that a preferably pneumatic fixing of the arch at the lateral sheet trailing edges or at the rear corners is sufficient. In particular, the sheet which is fixed or held on the cylinder jacket surface from the front edge to the trailing edge can easily be taken over by fixing devices arranged adjacent to the sheet support segments.

In particular, the sheet support segments, in particular support elements, have the function to press the sheet to the sheet guiding cylinder, in particular a printing cylinder, thereby preventing a "bow fall". On the other hand, on its way around the sheet guiding drum or delivery drum, in particular a sprocket shaft, the sheet can be supported on these sheet support segments, in particular support elements, and held close to sheet guide plates on the desired path, so that the sheet can not describe a secant.

Particularly preferably, each sheet is detected at its trailing edge in a transfer center by fixing devices, in particular pneumatic suckers, which are preferably arranged exclusively in the region of the lateral sheet support segments. The vacuum required for suction is preferably generated "locally" by means of fixing devices operating according to the ejector principle. In particular compressed air is preferably non-clocked via a rotary input of a rotatably mounted shaft of sheet guiding drum or delivery drum, in particular a rotary feed a Kettenradwelle transferred. Near the effective locations of the fixing devices, in particular at the corner corners, there is, for example, a respective solenoid valve, preferably a quick-acting valve, which is connected via a shortest possible line to a vacuum ejector. This sits as close to the sucker or is integrated into the Saugerbaugruppe to keep the evacuated dead volume as low as possible. Advantageously, this leakage losses are reduced or avoided, resulting in a lower energy consumption (although the vacuum generation by compressed air is actually more energy intensive than a generation by a pump). Also advantageous are the elimination of the complex assembly of the rotary valve and the provision of a practically wear-free solution. Low dead volumes after the solenoid valve in both the pressure and in the suction line, a highly dynamic behavior can be achieved. Further advantageously, the closing and / or stopping times can be set or changed depending on the sheet speed and / or printing material, for example, via the machine software.

For example, the sheets can be transferred from a rotating sheet guiding cylinder to revolving gripping devices, in particular gripper carriages, and a delivery system having a delivery drum. The delivery drum of the sheet conveying system has preferably adjacent to the sheet guiding cylinder arranged circumferentially, in particular rotating, driven sheet support segments, which in particular have recesses for the gripper carriage. The sheet support segments form with the cylinder jacket surface of the upstream sheet guiding cylinder a transfer center, in which the gripper carriage take over the sheet leading edges in the gripper closure of gripper systems of the sheet guiding cylinder. The arch support segments have, in particular, a small axial extent relative to the cylinder width. Next can also be pneumatic means Be provided which press the sheet on the cylinder surface and / or hold the sheet after the transfer centers on the sheet support segments or press against the sheet support segments.

For example, the sheets can be pressed by exactly two sheet support segments simultaneously in the transfer centers against the lateral surface of the upstream sheet guiding cylinder. Below the arch support segments can be arranged a sheet guide, which preferably extends far with a comb element in the area of the transfer centers, preferably in the sheet guide Stützblasbohrungen are arranged. Preferably, the Stützblasbohrungen in the central region of the sheet guiding element over the machine width in a high density and in the adjacent areas, in particular in the sheet conveying direction upstream and / or downstream areas, be arranged in a relation to the central region lower density. The blowing air of the sheet guiding element could also be varied or clocked or controlled according to the progress of sheet transfer or controlled according to sensor values. Particularly preferably, a sheet transport can be provided from a sheet guiding cylinder of a last work to a sheet conveying system in the delivery of a sheet-processing machine, wherein a sheet guiding element can be provided below the delivery drum.

In the following, the invention will be explained by way of example. The accompanying drawings show schematically:

Fig. 1: Display of a sheet-processing machine with a

sprocket;

Fig. 2: Perspective representation of the sprocket shaft with adjustable

Arch support segments; Fig. 3: Perspective view of the sprocket shaft with support elements supporting sheet support segments and fixing devices for the sheet trailing edge;

Fig. 4: Side view of the double-sized Kettenradwelle arranged on chains pressing elements;

Fig. 5: Enlarged view of a sheet support segment with

Andrückelementen and a suction device for the sheet trailing edge; Fig. 6: execution of a pressure element for a guided on a hanger chain;

Fig. 7: execution of a contact element as a sucker for a

Fixing.

FIG. 1 shows, for example, a delivery 1 of a sheet-processing machine, here in particular a sheet-fed printing machine, especially one

Bogenoffsetrotationsdruckmaschine preferred in aggregate and series construction. The machine is operated according to preferred in the offset method, with other printing methods such. B. screen printing, can be integrated in the machine. In the works of the machine, not shown, the sheets are gripped by gripper systems of rotating cylinders at the front edge and transferred between the cylinders in the gripper closure. In printing units, the sheets are dyed in an appropriate manner in a print nip formed by a cylinder and a blanket cylinder, each with one printing ink. Further, one or more coating units can be provided, in which the sheets can be painted by a paint form cylinder. The cylinders arranged in the machine can be of single or multiple size, wherein a single-sized cylinder can accommodate at least one sheet and a double-sized cylinder at least two sheets of maximum size circumferentially. The machine is preferably associated with a turning device for turning the sheet in a mode perfecting during machine operation. Continue may also be processing facilities or processing plants, such. B. cold foil works, be integrated in the machine.

In particular, the machine has a drive wheel, which drives particularly preferably as a continuous drive wheel train at least the sheet guiding cylinder of the machine. Preferably, sheet transfer cylinders designed as transfer drums or transfer cylinders are also driven by the drive wheel train. For this purpose, the sheet guiding cylinders on the drive side of the machine each have intermeshing gears, which form the drive wheel train. The drive wheel train is driven by at least one main drive motor which drives at least one entry point into the drive wheel train. Rubber cylinders of the printing units are preferably also driven by the drive wheel train. Further rotating bodies or rolls of the machine or of the printing units can also be driven at least temporarily by the drive wheel train, wherein these can also be designed to be coupled to the drive wheel train.

Plate cylinders of printing units can also be assigned to individual drives, in particular direct drives. Direct drives are in particular individual drives whose rotors are mounted in alignment and concentric preferably directly to the associated cylinders. During printing, the plate cylinder in question is then tracked electronically synchronized with the rubber cylinder, which is preferably driven by the main drive motor via the drive wheel train. For the plate cylinder and / or blanket cylinder may be assigned a rotary encoder, which may be connected to a control unit of the printing unit and / or the machine control. Alternatively, the drive of the plate cylinder or can also be done via the drive wheel train from the main drive motor.

A control device of the machine, for example, the machine control, is preferably the current machine angle known. The machine angle can to be defined as the position of a cylinder in space. For example, the machine angle can be derived or absorbed by the main drive motor. Alternatively, or additionally, a rotary encoder, in particular a rotary encoder, may be associated with a preferably rotating element of the machine, which feeds rotary encoder signals to the control device, in particular the machine control, or provides them for this. For example, a sheet guiding cylinder of the machine, in particular a sheet guiding cylinder according to a turning device not shown and / or a sheet guiding cylinder of a last work, a rotary encoder, preferably designed as a rotary encoder, be assigned. The rotary encoder can in particular be assigned to the last sheet guiding cylinder arranged immediately before the delivery 1 of the machine and / or connected to the control device and / or to a quality control device, for example to an inspection system.

From a sheet-processing machine, such as sheet-fed press, a last here double-sized sheet guiding cylinder and a sheet of this accepting sheet delivery system of the display 1 is shown. The sheet guiding cylinder has an at least approximately closed cylinder jacket surface and here is in particular a printing cylinder 2 of a last printing unit. Alternatively, the sheet guiding cylinder may also be a last cylinder in a paint or other processing plant. The printing cylinder 2 is executed here twice large and contains two diametrically arranged gripper systems located in gripper channels. From these gripper systems, the sheet leading edges are clamped for sheet transport and thus fixed. Alternatively, however, the sheet guiding cylinder can also be simple, triple or multi-sized.

In the delivery 1, the sheet conveying system is furthermore arranged, which in particular has endlessly preferably continuous, circumferentially driven and guided gripping devices for taking over and transporting the sheets. The gripping devices are preferred arranged on traction means and endlessly driven by wheels and / or on deflection guides. The gripping devices are arranged in particular parallel to each other and evenly spaced between the traction means and preferably designed as a clamping gripper. The sheet conveying system here has, in particular, a chain conveyor system 3 with peripherally guided gripper carriages and a sprocket shaft 4 adjacently associated with the sheet guiding cylinder, in particular the impression cylinder 2. The chain conveyor system 3 contains here in particular on both sides of the frame of the display 1 on chain guide rails guided chains on which and between which the gripper carriage are attached. Each gripper carriage contains a clamping gripper system which, for example, has grippers fixedly arranged on a movable gripper shaft and fixed gripper clutches. About a rotation of the gripper shaft, a gripping movement for fixing a respective sheet leading edge can be controlled. Preferably via roller lever and cam rollers, the gripper shaft of a gripper carriage can be actuated in particular in the field of sheet transfer and in the sheet storage of cams.

Of the gripper carriage of the chain conveyor system 3, the sheets from the sheet guiding cylinder, in particular impression cylinder 2, taken over and guided along a Bogenförderweges in the sheet conveying direction BFR to a delivery stack 5. The gripping movements of the gripper carriages, in particular in the area of sheet transfer in the transfer centers of the sheet guiding cylinder, in particular impression cylinder 2, and in the region of the sheet deposit, in particular above the delivery stack 5, can be controlled by control cams preferably via the roller levers and cam rollers. Particularly preferably, the sheet transport takes place in the delivery 1 exclusively at the sheet leading edge by the gripping devices, in particular the gripper carriage. On the sheet conveying path from the sheet guiding cylinder, in particular printing cylinder 2, to the delivery stack 5, the sheets are preferably guided on guide elements, not shown, for example, sheet guide plates, wherein between the sheet and the sheet guide plates and an air cushion can be formed. Especially in the Operating mode perfecting can be a non-contact sheet transport. For example, one or more dryers and / or dusting devices can be provided on the sheet travel path.

In the delivery 1, the delivery stack 5 in the sheet conveying direction BFR is preferably preceded by a sheet brake, which takes over the sheets to be deposited from the gripper carriages and delays their release from machine speed to depositing speed. After being decelerated by the sheet brake, the sheets are aligned with leading edge stops, trailing edge stops and / or side edge stops, not shown, and are neatly deposited on the delivery stack 5. The delivery stack 5 is preferably lowered by a Stapelhubantrieb, not shown, during the sheet deposition process such that the delivery stack surface forms an at least approximately constant storage level for the upcoming sheet. The sheet brake, for example, contain at least two braking stations, which are preferably axially, ie transversely to the sheet conveying direction BFR, displaceable, in particular displaceable, are arranged. The braking stations are placed in particular on a respective lateral usually unprinted sheet edge. For further intended braking stations, these can be placed on pressure-free corridors and / or on sufficiently dried color areas. Unnecessary braking stations can be deactivated and / or shifted from the area of the sheet format. Alternatively, however, post-grippers can also be used.

Fig. 2 shows a perspective view of the sprocket shaft 4, which is assigned immediately adjacent to the last sheet guiding cylinder of the machine. The sprocket shaft 4 has a parallel to the axis of rotation of the adjacent sheet guiding cylinder shaft, which are assigned on both sides sprockets for the circulating chains of the chain conveyor system 3. The sprockets act with the respective chain guide rails for guiding the gripper carriage in Area of the sprocket shaft 4 together. The sprockets are thus coaxial and spaced from each other in particular fixedly assigned to the sprocket 4. The sprocket 4 is associated with a drive which rotatably drives the sprocket 4 synchronously to the drive wheel about its axis of rotation. Preferably, the sprocket shaft 4 here carries a helical gear, which cooperates with the drive of the machine or is driven by this. The particular fixed to the sprocket 4 associated helical gear is preferably as part of the continuous drive wheel train or gear train of the machine in meshing with a gear of the immediately upstream sheet guiding cylinder, in particular of the impression cylinder 2. A guided in the range of the sprocket 4 gripper carriage of the chain conveyor system 3 takes a bow in a common transfer centers by gripper closure of a gripper system of the upstream sheet guiding cylinder, in particular of the impression cylinder. 2

The sprocket shaft 4 has between the two sprockets at least two and preferably exactly two sheet support segments 6 for simultaneously supporting a sheet against the cylinder surface of the sheet guiding cylinder, in particular impression cylinder 2, on. At least one and preferably both sheet support segments 6 are axially displaceable relative to the sprocket 4, for example, mounted on a hub. In the double-sized version of the sprocket shaft 4, for example, each hub has exactly two arc support segments 6, which are arranged diametrically arranged fixed to the hub. Due to the common storage of the sheet support segments 6 on an axially displaceable relative to the shaft of the sprocket 4 hub a common adjustment of the sheet support segments 6 of the respective page. The hub may, for example, have rollers rolling on the surface of the shaft. It can be provided each hub, for example, assign six roles that run on preferably ground tracks of the sprocket 4. For axial adjustment of the sheet support segments 6 in particular an adjusting means is provided. Preferably, one or for each hub is a drive, for example an electrically operating drive motor, For example, on the operating side, provided, which preferably acts via a spindle drive on the respective hub and causes an axial adjustment of the hub or the hub associated with the sheet support segments 6. For example, the axial adjustment of the sheet support segments 6 can be made together with the axial adjustment of the braking stations of the sheet brake on the sheet format. The axial adjustment can continue to be made and / or monitored automatically on the basis of the same data by a control device, in particular the machine control.

The sheet support segments 6 are preferably so far apart movable that sheet maximum format to be processed formats can be supported on the respective lateral sheet side edges. Further, it may be provided to shift one or both sheet support segments 6 to outside the maximum sheet size to allow, for example, a sheet transport without Bogenstützsegmente 6 or maintenance. It can also be the sheet support segments 6 and the hubs independently be axially adjustable or displaced or adjusted or relocated. The drive motors for axial adjustment of the arc support segments 6 bearing hubs are for example independently controlled by the control device, in particular machine control. For the rotating gripper carriage of the chain conveyor system 3, the sheet support segments have 6 recesses or their circumferential extent is dimensioned accordingly.

For example, a respective arch support segment 6 a bracket 6, which is preferably held in a separate plane. The bracket 6 is circumferentially a supporting elements supporting traction means, in particular a pressing elements 7 supporting chain 8 assigned. The bracket 6 includes a circumferentially oriented guide for the traction means, in particular the chain 8, which thus in the circumferential direction or in and / or against the sheet conveying direction BFR relative to the bracket 6 can be displaced or moved. The traction means associated with the supporting elements, in particular the chain 8 associated pressing elements 7 are stored in accordance with displacement of traction means or chain 8 together in the circumferential direction along the bracket 6 and the guide of the bracket 6 displaced. Thus, a common displacement of the support elements, in particular pressing elements 7, in and / or against the sheet conveying direction BFR for adjustment, in particular for format adjustment done.

The traction means, in particular the chain 8, associated supporting elements, in particular pressing elements 7, have an arc contact surface with a minimum axial extent. The axial extent of an arc contact surface may be, for example, 0.5 mm to 3 mm, preferably at least approximately 1 mm. The support elements, in particular pressing elements 7, preferably contain elastic material or are made of elastic material. The pressing elements 7 may in particular contain rubber or be made of rubber. For example, the support elements, in particular pressing elements 7, seen in sheet conveying direction BFR also have a wedge-shaped cross-section or an increased arc contact surface. In the circumferential direction or along the sheet conveying direction BFR, the extent of the pressing elements 7 can be, for example, up to 50 mm. By a line of contact of the support elements, in particular the sheet contact surfaces of the pressing elements 7, a sheet against the cylinder surface of the sheet guiding cylinder, in particular impression cylinder 2, can be pressed and thus on this fixable or durable. A sheet camber is thus avoided as long as the sheet between the support elements, in particular pressing elements 7, and the sheet guiding cylinder, in particular impression cylinder 2, is located. Preferably, a sheet is pressed exclusively by the support elements, in particular pressing elements 7, against the cylinder jacket surface and not sucked through Bogenstützsegmente 6.

A here, for example, two respective sheet support segments 6 bearing hub of the sprocket 4, in particular further comprises a circumferentially movable hub shell, which is preferably rotatably mounted on the hub. The Hub sleeve is preferably associated with a separate drive, which can shift the hub sleeve relative to the hub in the circumferential direction or in and / or against the sheet conveying direction BFR. The drive may for example be arranged directly on the hub or hub shell and displace the hub shell relative to the hub. The hub may, for example, have an internally toothed toothed segment into which a pinion driven by the drive engages. The hub shell or the drive is displaced correspondingly with the hub axially along the shaft of the sprocket shaft 4. Preferably, the energy and / or signal transmission to the seated on the hub drive by means of a rotary inlet 1 1 of rotatably mounted Kettenradwelle 4. For example, a cable guide in the interior of the sprocket 4 to about the machine center, where in particular a cable traction for storing the cable is provided. From the cable tow from a supply of the two each assigned to a hub drives.

Preferably, a sprocket shaft 4 and in particular a respective hub shell is assigned at least one fixing device for preferably pneumatic zone-wise fixing of a sheet trailing edge. In the double-sized version of the sprocket 4, each hub shell carries exactly two diametrically arranged fixing devices, which are preferably each firmly connected to the hub shell. By a respective hub sleeve relative to the hub displacing drive the fixing means in and / or against the sheet conveying direction BFR can be placed on the respective sheet trailing edge. By the drive is particularly preferred at the same time the bow support segment 6, in particular the bracket 6, associated traction means, in particular the chain 8, with moves. The traction means, in particular the chain 8, is in particular also displaced in and / or counter to the sheet conveying direction BFR along the guide of the bracket 6. Preferably, a respective fixing device is so connected to the traction means, in particular a chain link of the chain 8, that an adjusting movement of the fixing simultaneously an adjustment of the traction means associated support elements, in particular of the chain 8 associated pressing elements 7 causes.

3 shows a perspective view of the sprocket shaft 4 with support elements, in particular pressing elements 7, supporting arch support segments 6, in particular brackets 6, and fixing devices for the sheet trailing edge. The fixing means are in particular exclusively in the area of the sheet support segments 6, in particular bracket 6, between the sheet support segments 6, in particular brackets 6, arranged, each one fixing directly a sheet support segment 6, in particular bracket 6, is assigned. Other fixing devices for the sheet trailing edge between the two outer fixing the rear corners corners fixing are not provided. In particular, exactly one fixing device is assigned to a respective arch support segment 6, in particular stirrup 6. Preferably, in each case a fixing device immediately adjacent to a sheet support segment 6, in particular bracket 6, stored and / or against a sheet support segment 6, in particular bracket 6, in particular for a setting movably mounted. The fixing devices are in particular in the longitudinal direction of the sheet, d. H. in the sheet conveying direction BFR, and / or in the sheet width direction, d. H. formed transversely to the sheet conveying direction BFR, format adjustable. Preferably, the fixing means are formed together with support elements, in particular pressing elements 7, the sheet support segments 6, in particular bracket 6, adjustable in form. Preferably, the fixing devices with the support elements, in particular pressing elements 7, can be adjusted simultaneously or jointly by the drive seated on the hub.

In particular, a respective fixing device for the trailing edge of the sheet contains a contact element which preferably, as a vacuum cleaner 10, fixes a limited area of the sheet trailing edge in a sucking manner. In particular, each fixing device, in particular each vacuum cleaner 10, has a separate pneumatic Connection, wherein the pneumatic connections of the fixing devices, in particular vacuum cleaner 10, preferably with a common compressed air generator in pneumatic connection or flow connection. The compressed air generator provides, in particular, a pneumatic pressure that is permanently above atmospheric pressure and / or uncalculated, which is available correspondingly at the pneumatic connections of the fixing devices, in particular suction device 10. As a compressed air generator, for example, a compressor can be used. Particularly preferably, the pneumatic connection of the fixing devices, in particular vacuum cleaner 10, also takes place via a rotary inlet 11 of the rotatably mounted sprocket shaft 4, in particular with the realization of a cable tow, for example in the middle of the machine. The compressed air generator is here in particular with both laterally arranged fixing the bow simultaneously fixing devices, in particular suckers 10 in combination. In the double-sized delivery drum, in particular sprocket 4, the compressed air generator with all or exactly four fixing, in particular suckers 10, in pneumatic connection or flow connection.

A contact element of the fixing device has an at least approximately flat contact surface for an arc region. In particular, a sucker 10 has a suction surface, which transmits a suction effect of the fixing device to the sheet. The pneumatically acting suction cups 10 of the fixing devices preferably each have at least one opening for generated suction air in the suction surface, through which a sheet is held in contact with the suction device 10. For example, each sucker 10 may have a number of openings or suction openings, for example four to six suction openings. The fixing devices may also have, for example, exchangeable contact elements, in particular suction cups 10, which have, for example, differently arranged or formed openings or openings. The contact surface of a contact element or the suction surface of a teat 10, for example, an extension of up to 20 mm in Sheet conveying direction BFR and / or have up to 50 mm transverse to the sheet conveying direction BFR. Each fixing device is preferably associated with an air control element, in particular immediately adjacent to the suction surface, which is preferably designed as a solenoid valve 13, particularly preferably as a quick-acting switching valve.

The fixing devices could also have a separate holder, but are preferably the sheet support segments 6, in particular hangers 6, directly assigned. The contact surfaces of the contact elements, in particular the suction surfaces of the teat 10, the fixing devices are preferably always held at the level of the support elements, in particular the contact surfaces of the pressing elements 7, the sheet support segments 6. For example, the contact elements, in particular sucker 10, may be received by a fixing device via a lockable plug connection. In particular, a contact element, in particular sucker 10, are assigned in the axial direction to a receptacle of the fixing device, wherein the contact element, in particular the sucker 10, can be received by the fixing device, for example via a ball catch in its position fixable. In this way, differently shaped contact elements, in particular suckers 10, can each be associated with a fixing device in an exchangeable manner. In particular, contact elements, in particular sucker 10, different material composition and / or shaping of a fixing device can each be associated with each other interchangeable. For adjustment, assembly, cleaning and / or maintenance work, the contact elements, in particular vacuum cleaner 10, are quickly or without tools removably or exchangeably associated with the fixing devices.

4 shows a side view of the example double-sized sprocket 4 with arranged on traction elements support elements, in particular arranged on chains 8 pressing 7. The respective arch support segment 6, in particular a bracket 6, associated chain 8 is a closed chain 8 to a bracket. 6 placed and is guided by the bracket 6 in the circumferential direction. On the inside side is the chain 8 held by a tensioning means, in particular by a tension roller 9, in the desired or adjustable voltage. An adjusting means, in particular drive, preferably an electrically operating drive motor, is provided for shifting the pressing elements 7 bearing chain 8 relative to the bracket 6 in and / or against the sheet conveying direction BFR in particular for setting or format setting.

The chain 8 has hingedly interconnected chain links, to which the pressing elements 7 can be assigned. In this case, each chain link of the chain 8 exactly one pressing element 7 can be assigned. The pressing elements 7 are preferably assigned to the chain 8 changeable, wherein a respective pressing element 7 can be received by a chain link of the chain 8 positively and / or non-positively. In particular, a pressing element 7 is received by a chain link of the chain 8 via a lockable plug connection. Preferably, a pressing element 7 is received by a respective chain link of the chain 8 via a screw connection. In order for differently shaped pressing elements 7 can be assigned to a respective chain link of a chain 8 each interchangeable. In particular, pressing elements 7 of different material composition and / or shape can be assigned to a respective chain link of a chain 8 in each case interchangeable. For adjustment, assembly, cleaning and / or maintenance work, the pressing elements 7 are quickly removable or replaceable chain 8 respectively the sheet support segments 6, in particular brackets 6 assigned.

5 shows an enlarged view of a sheet supporting segment 6, in particular bow 6, with a chain 8 associated pressing elements 7 and a fixing device for the sheet trailing edge. The fixing device has a compressed air connection connected to the compressed air generator and works according to the ejector principle. In particular, the fixing device contains an ejector 12, which opens into an outlet channel. About the directed, for example, in the direction of the shaft outlet channel leak out the used air. Furthermore, deflecting or diverting means can be provided for the air emerging from the outlet channel. The fixing device preferably has an air control element, which is designed in particular as a solenoid valve 13. By means of the air control element, in particular solenoid valve 13, a control of the suction effect of the respective fixing device takes place, for example, as a function of the machine speed and / or of printing material properties. In this case, all fixing devices are preferably designed as ejector sucker. Preferably, each fixing device, in particular each vacuum cleaner 10, an air control element, associated with the individual and / or remotely controllable solenoid valve 13, the air control element, in particular the solenoid valve 13, in particular controls the ejector 12 supplying compressed air.

The control of an air control element, in particular solenoid valve 13, one or preferably each fixing device can be made by a control device, in particular the machine control. Preferably, the electrical control connection is also via a rotary inlet 1 1 of the rotatably mounted sprocket 4 and possibly a cable tow. In this case, an air control element, in particular solenoid valve 13, by the control device, in particular machine control, for order-related adjustment of the pneumatic effect of the fixing device, in particular of the teat 10, are controlled. Particularly preferably, by the air control element, in particular the solenoid valve 13, the beginning, the intensity and / or the end of the pneumatic suction of the fixing device, in particular of the teat 10, adjustable or changeable. The adjustment or change can also be made while the machine is running or during the printing process. Particularly preferably, the suction effect of the fixing device, in particular of the teat 10, is influenced by the air control element, in particular solenoid valve 13, as a function of the machine speed and / or of printing material properties or set. The air control element, in particular solenoid valve 13, can cooperate with the control device such that the beginning, the intensity and / or the end of the pneumatic effect can be set manually or automatically.

By means of the respective one of the fixing device, in particular sucker 10, associated solenoid valve 13 in particular the ejector 12 feeding compressed air is controlled so that the beginning, the intensity and / or the end of a suction is set. The adjustment of the suction air of the fixing device, in particular on the vacuum cleaner 10, by the air control element, in particular solenoid valve 13, can also be carried out as a function of sheet travel during sheet transfer and / or during sheet release. The sheet travel can therefore be influenced and controlled individually and / or remotely during the printing process. An automated adjustment of the suction effect on the individual fixing devices, in particular suckers 10, of the sprocket shaft 4 can be carried out, for example, according to sensor values. In particular, in influencing the pneumatic suction, a dead time can be taken into account when building up the suction effect. This dead time can continue to be compensated, for example, speed-dependent.

6 shows an embodiment of a pressure element 7 for a guided on a bracket 6 chain 8. The pressure element 7 may be assigned to a chain link 8 of the chain changeable via a screw. The pressure element 7 is particularly elastic and has a circumferentially extending and a minimum axial extension having contact surface for a bow. The pressing member 7 may be made of rubber, for example. An elasticity of the pressure element 7 can be achieved in particular by the choice of material and / or a suitable shape design. FIG. 7 shows an embodiment of a contact element as a vacuum cleaner 10 for a fixing device. The teat 10 may be assigned to the fixing device, in particular the ejector 12, via a receptacle. For example, the nipple 10 may have guide surfaces that are received or guided by guide surfaces of the fixing device. For example, the teat 10 can be assigned in the axial direction of the fixing device, wherein preferably a lockable connector is provided for fixing the position. On its underside of the teat 10, for example, at least one hemispherical recess may be provided, which cooperates with a spring-loaded detent ball of the fixing form-locking for fixing position and thus allows a tool-free change or exchange of the teat 10.

The teat 10 has at least one and in particular four openings and forms with centrally arranged supporting elevations the suction surface for the sheet trailing edge. The sucker 10 is preferably dimensioned such that the suction surface is always or permanently at the level of the contact line of the immediately adjacent support element, in particular pressing element 7, the sheet support segment 6. The teat 10 may further be associated with an elastic cover such as a rubber cover. The one or more openings of the teat 10 allow the action of a suction air generated by the ejector 12 partially on the sheet trailing edge, so that a sucking force holds the sheet trailing edge in contact with the suction surface of the teat 10.

For effect: Before a new order, such as a new print job, the sheet support segments 6, in particular the bracket 6, can be placed axially on the side edges of the new sheet format. Before, simultaneously or afterwards, the fixing devices, in particular suckers 10, can be placed on the sheet trailing edge of the new sheet format, wherein preferably at the same time the support elements, in particular pressing elements 7, are displaced such that only the respective Arc side edge of the new sheet format by supporting elements, in particular pressing elements 7, is contacted. If necessary, suitable support elements, in particular pressing elements 7, the sheet support segments 6, in particular brackets 6, and / or suitable contact elements, in particular sucker 10, the fixing devices are assigned.

During the subsequent sheet run support or press the sheet support segments 6, in particular bracket 6, or the support elements, in particular the pressing elements 7, a respective sheet simultaneously against the cylinder surface of the upstream sheet guiding cylinder, in particular impression cylinder 2, wherein a respective sheet trailing edge next to the sheet support segments 6, in particular brackets 6, and the support elements, in particular the pressing elements 7, in the region of the arch support segments 6, in particular bracket 6, or the support elements, in particular the pressing elements 7, exclusively by the immediately adjacent arranged fixing devices, in particular sucker 10, held and guided ,

The suction air of the fixing, in particular sucker 10, is preferably obtained from the compressed air of a compressed air generator according to the ejector principle, wherein each of the fixing, in particular sucker 10, associated air control elements, in particular solenoid valves 13, control the suction precisely. If required, an individual and / or remotely controllable change in the suction air control can be made. For example, a control of the air control elements, in particular solenoid valves 13, carried out according to characteristics. Thus, a maximum suction during the sheet transfer in the transfer centers can be ensured. Subsequently, for example, a reduction of the suction effect can be carried out depending on the angle, since a lower suction force is sufficient for holding the sheet trailing edge resting against the suction surface of the teat 10. List of used reference numbers

1 display

2 pressure cylinders

3 chain conveyor system

4 sprocket shaft

5 delivery stacks

6 arch support segment, stirrup

7 pressing element

8 chain

9 tensioning roller

10 suckers

1 1 rotary inlet

12 ejector

13 solenoid valve

BFR arc direction

Claims

claims

1 . Sheet processing machine with a sheet transport device with a sheet of a sheet guiding cylinder (2) receiving sheet conveying system (3, 4), with a gripping device (3) for clamping fixing and transporting a respective sheet leading edge and

with at least two the bow at the same time on the cylindrical surface of the cylinder

Sheet guiding cylinder (2) holding circulating arc support segments (6) and / or pneumatic fixing means (10) for the sheet trailing edge,

characterized,

that pneumatic sheet support segments and / or the fixing devices (10) are in pneumatic communication with a compressed air generator.

2. Sheet processing machine according to claim 1, wherein the compressed air generator provides a permanently above ambient pressure and / or non-clocked pneumatic pressure.

3. Sheet processing machine according to claim 1 or 2, wherein the sheet conveying system is formed as a sheet guiding drum or an output drum (4) and a compressed air supply via a rotary inlet (1 1) of a rotatably mounted shaft of sheet guiding drum or delivery drum (4).

4. Sheet processing machine according to claim 1, 2 or 3, wherein the compressed air generator with exactly four fixing devices (10) of a double-sized Kettenradwelle (4) is in pneumatic flow communication.

5. sheet-processing machine according to claim 1, 2, 3 or 4, wherein the fixing means (10) exclusively in the region of the sheet support segments (6) between the sheet support segments (6) are arranged and in each case a fixing device (10) is associated with a sheet support segment (6).

6. Sheet-processing machine according to claim 1, 2, 3, 4 or 5, wherein the sheet support segments (6) bear the sheet mechanically contacting support elements (7) which are connected by means of a traction means (8), wherein the fixing means (10) each with a traction means (8) are connected.

7. Sheet-processing machine according to claim 1, 2, 3, 4, 5 or 6, wherein the fixing means (10) in and / or against the sheet conveying direction (BFR) and / or transversely to the sheet conveying direction (BFR) formateinstellbar and / or together with support elements (7) the sheet support segments (6) are designed adjustable in format.

8. Sheet-processing machine according to claim 1, 2, 3, 4, 5, 6 or 7, wherein each fixing device (10) has a separate holder and / or a separate pneumatic connection.

9. Sheet processing machine according to claim 1, 2, 3, 4, 5, 6, 7 or 8, wherein the fixing means pneumatically acting suction (10), each having at least one breakthrough and / or interchangeable associated with the fixing means.

10. Sheet processing machine according to claim 1, 2, 3, 4, 5, 6, 7, 8 or 9, wherein the fixing means (10) operate according to the ejector principle and having an outlet channel for escaping air.

1 1. Sheet-processing machine according to claim 1, 2, 3, 4, 5, 6, 7, 8, 9 or 10, wherein each fixing device (10) is associated with an air control element (13) for controlling the suction effect of the respective fixing device (10).

12. sheet-processing machine according to claim 1, 2, 3, 4, 5, 6, 7, 8, 9, 10 or 1 1, wherein each fixing device (10) each have an air control element (13) for controlling the suction of the respective fixing device (10 ) is assigned as a function of the machine speed and / or of printing material properties.

13. Sheet processing machine according to claim 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 1 1 or 12, wherein the fixing means (10) are designed as ejector suction and each fixing device (10) a remotely controllable solenoid valve (13) is associated, which controls the ejector (12) supplying compressed air.

14. Method for transporting sheets from a sheet guiding cylinder (2) to a sheet conveying system (3, 4) in a sheet processing machine,

wherein a gripping device (3) clampingly fixes a respective sheet leading edge for transport,

wherein the sheet of at least two circumferential arc support segments (6) is held simultaneously on the cylinder jacket surface of the sheet guiding cylinder (2) and / or the sheet trailing edge is held by pneumatic fixing means (10),

characterized,

in that pneumatic sheet support segments and / or the fixing devices (10) are in pneumatic communication with a compressed air generator in order to generate forces holding the sheet.

15. The method of claim 14, wherein the suction of the pneumatic sheet support segments and / or the fixing means (10) by means of the pneumatic sheet supporting segments and / or the fixing means (10) supplying compressed air acting air control elements (13) is changed and / or adjusted.

16. sheet-processing machine with a sheet transport device with a sheet of a sheet guiding cylinder (2) receiving sheet conveying system (3, 4), with a gripping device (3) for clamping fixing and transporting a respective sheet leading edge and

characterized,

in that an air control element (13) can be controlled remotely or individually

remotely controllable influencing the pneumatic effect of pneumatic sheet support segments and / or the fixing means (10) is provided.

17. Sheet processing machine with a Bogenentransportvornchtung with a sheet of a sheet guiding cylinder (2) receiving sheet conveying system (3, 4), with a gripping device (3) for clamping fixing and transporting a respective sheet leading edge and

characterized,

an air control element (13) for individual and / or remotely controllable

Influencing the pneumatic effect of pneumatic sheet support segments and / or the fixing means (10) is provided, wherein by the

Air control element (13) the beginning, the intensity and / or the end of the

pneumatic effect is changeable.

18. Sheet processing machine according to claim 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 1 1, 12, 13, 16 and / or 17, wherein the air control element (13) has a suction function of Machine speed and / or influenced by substrate properties.

19. A sheet processing machine according to claim 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 1 1, 12, 13, 16, 17 and / or 18, wherein each pneumatic sheet support segment and / or each fixing device (10) is associated with a separate air control element (13).

20. Sheet processing machine according to claim 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 1 1, 12, 13, 16, 17, 18 and / or 19, wherein the air control element (13) with a control device cooperates such that the beginning, the intensity and / or the end of the pneumatic effect is manually or automatically adjustable.

21. Sheet processing machine according to claim 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 1 1, 12, 13, 16, 17, 18, 19 and / or 20, wherein an air control element (13) with a control device for order-related adjustment of the pneumatic action of the pneumatic sheet support segments and / or the fixing means (10) cooperates.

22. Sheet processing machine according to claim 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 1 1, 12, 13, 16, 17, 18, 19, 20 and / or 21, wherein the pneumatic Sheet support segments and / or the fixing devices (10) are in communication with a compressed air generator, which provides a permanently above atmospheric pressure and / or uncommitted pneumatic pressure, the pneumatic sheet support segments and / or the fixing devices (10) operate on the ejector principle.

23. Sheet-processing machine according to claim 16, 17, 18, 19, 20, 21 or 22, wherein the sheet conveying system is formed as a sheet guiding drum or a delivery drum (4) and a compressed air supply via a rotary inlet (1 1) of a rotatably mounted shaft of sheet guiding drum or delivery drum (4).

24. Sheet-processing machine according to claim 16, 17, 18, 19, 20, 21, 22 or 23, wherein the fixing means (10) exclusively in the region of the sheet support segments (6) between the sheet support segments (6) are arranged and in each case a fixing device (10) is associated with a sheet support segment (6).

25. Sheet-processing machine according to claim 16, 17, 18, 19, 20, 21, 22, 23 or 24, wherein the fixing means (10) in and / or against the sheet conveying direction (BFR) and / or transversely to the sheet conveying direction (BFR) format adjustable and / or together with support elements (7) of the sheet support segments (6) are formed format adjustable.

26. Sheet processing machine according to claim 13, 16, 17, 18, 19, 20, 21, 22, 23, 24 and / or 25, wherein each pneumatic sheet support segment and / or each fixing device (10) each have a solenoid valve (13) for individual and / or remotely controllable control of the suction is assigned immediately adjacent to a suction surface.

27. Method for transporting sheets from a sheet guiding cylinder (2) to a sheet conveying system (3, 4) in a sheet-processing machine,

characterized,

the pneumatic effect of pneumatic arch support segments and / or the fixing devices (10) is influenced individually and / or remotely by means of an air control element (13).

28. The method of claim 15 and / or 27, wherein by the air control element (13) the adjustment in dependence of the sheet travel in the sheet transfer and / or in the sheet release is made.

29. The method of claim 15, 27 and / or 28, wherein in influencing the pneumatic effect, a dead time in the construction of a suction effect is taken into account.

30. The method of claim 15, 27, 28 and / or 29, wherein by means of a respective pneumatic sheet support segment and / or a fixing device (10) associated with solenoid valve (13) an ejector (12) supplying compressed air is controlled to the beginning, adjust the intensity and / or the end of a suction.

31. Sheet processing machine claim 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 1 1, 12, 13, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25 and / or 26, wherein the sheet processing machine is a printing press or offset printing machine.

32. sheet processing machine claim 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 1 1, 12, 13, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26 and / or 31, wherein the sheet-processing machine is designed in aggregate and series construction.

33. sheet-processing machine claim 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 1 1, 12, 13, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 31 and / or 32, wherein the sheet processing machine comprises a turning device for the sheets.

34. sheet-processing machine claim 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 1 1, 12, 13, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 31, 32 and / or 33, wherein the sheet-processing machine has printing units and / or at least one coating unit.

35. sheet processing machine claim 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 1 1, 12, 13, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 31, 32, 33 and / or 34, wherein the sheet conveying system (3, 4) is immediately downstream of the sheet guiding cylinder (2).

36. sheet processing machine claim 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 1 1, 12, 13, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 31, 32, 33, 34 and / or 35, wherein the sheet guiding cylinder is a pressure cylinder (2) with at least approximately closed lateral surface.

37. sheet processing machine claim 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 1 1, 12, 13, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 31, 32, 33, 34, 35 and / or 36, wherein sheet support segments (6) and / or fixing devices (10) contact a last-processed, printed and / or painted side of the sheet.

38. sheet processing machine claim 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 1 1, 12, 13, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 31, 32, 33, 34, 35, 36 and / or 37, wherein the sheet conveying system is designed as a chain nfördersystem (3) with continuously rotating exclusively the sheet leading edges fixing gripper carriage.

39. sheet processing machine claim 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 1 1, 12, 13, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 31, 32, 33, 34, 35, 36, 37 and / or 38, wherein the sheet guiding cylinder (2) is part of a last coating unit or printing unit of the machine.

40. sheet-processing machine claim 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 1 1, 12, 13, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 31, 32, 33, 34, 35, 36, 37, 38 and / or 39, wherein the sheet processing machine comprises a delivery system (1) comprising the sheet conveying system (3, 4) and a sheet brake.

41. Sheet processing machine claim 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 1 1, 12, 13, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 31, 32, 33, 34, 35, 36, 37, 38, 39 and / or 40, wherein the sheet processing machine includes a two or more axially adjustable brake stations having sheet brake and / or a Stapelhubantrieb for lowering a delivery stack (5) having.

42. sheet-processing machine claim 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 1 1, 12, 13, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40 and / or 41, wherein at least one sheet support segment (6) and / or a fixing device (10) transversely to the sheet conveying direction (BFR) are stored displaced outside of the maximum sheet format to be processed.

43. The method of claim 14, 15, 27, 28, 29 and / or 30, wherein the sheets are printed in the machine, turned and / or painted.

44. The method of claim 14, 15, 27, 28, 29, 30 and / or 43, wherein the sheets on the sheet guiding cylinder (2) lying processed, printed and / or painted.

45. The method of claim 14, 15, 27, 28, 29, 30, 43 and / or 44, wherein the sheets are taken over by continuously rotating gripper carriage of a chain nfördersyste ms (3) from the sheet guiding cylinder (2) and conveyed to a sheet storage area.

46. The method of claim 14, 15, 27, 28, 29, 30, 43, 44 and / or 45, wherein an arc is taken over by an at least approximately closed lateral surface of the sheet guiding cylinder (2).

47. The method of claim 14, 15, 27, 28, 29, 30, 43, 44, 45 and / or 46, wherein a sheet is transferred from the sheet conveying system (3) to a sheet brake for decelerating the sheet.

48. The method of claim 14, 15, 27, 28, 29, 30, 43, 44, 45, 46 and / or 47, wherein a sheet is delayed after being released by the sheet conveying system (3) of axially adjustable braking stations of a sheet brake.

49. The method of claim 14, 15, 27, 28, 29, 30, 43, 44, 45, 46, 47 and / or 48, wherein exactly two brake stations of a sheet brake together with one arc support segment (6) and / or a fixing device (10) are moved to format setting.

50. The method of claim 14, 15, 27, 28, 29, 30, 43, 44, 45, 46, 47, 48 and / or 49, wherein sheet support segments (6) and / or fixing devices (10) transversely to the sheet conveying direction (BFR ) are moved out of the current sheet format to allow a sheet guide without Bogenstützsegmente (6) and / or fixing devices (10).