DE102021103848B3 - Processing machine with at least one cutting device - Google Patents

Abstract

The invention relates to a processing machine with at least one separating device, wherein the at least one separating device is arranged to separate a substrate at least in the waste part, at least one panel, wherein the at least one separating device has at least one transport cylinder, with at least one rotary inlet for the at least one transport cylinder via at least one end face is arranged to supply and/or discharge air, with a lift being arranged clamped on the transport cylinder, with the lift having indentations, with at least some of the indentations being designed as suction chambers for sucking in the blanks, with the suction chambers for calling out the blanks each having at least one have suction surface.

Description

The invention relates to a processing machine with at least one separating device and a method for treating substrates according to the preamble of claim 1 and claim 12.

The invention relates to a device and a method for treating substrates with a separating device with which a processed substrate can be separated into at least one waste part and at least one blank.

With the processing machine, a preferably processed substrate can be separated into at least one waste part and at least one blank in a separating device. Substrates are understood to mean, in particular, sheet-like substrates which are preferably printable or printed. Such substrates are processed by one or more processing operations, such as. B. by printing and / or coating and / or painting and / or cutting and / or punching and / or embossing and / or grooving and / or perforating.

From the DE 10 2004 058 601 A1 a device for finishing processing of printed sheet-like substrates with two processing rollers is known. An almost horizontally aligned conveyor belt is arranged next to one of the processing rollers. The conveyor belt is supplied with suction air and one of the processing rollers with blown air.

through the DE 10 2015 223 110 A1 , A rotary inlet for blowing or suction air into a cylinder of a device for treating substrates is known. The rotary union must be mountable in the built-in state. Specifically, this leaves an area through which no air can be introduced into the cylinder.

through the DE 10 2017 204 595 A1 as well as through the DE 10 2018 219 712 A1 describes how the cutting process takes place in the cutting device. A transport cylinder is subjected to blowing and/or suction air through the rotary inlet. The blanks and waste parts are held on the transport cylinder in coordinated areas by suction air. In particular, scraps are internal scraps in a panel. The benefits can be surrounded by holding webs, which are to be distinguished from the waste parts. Like the blanks, the retaining bars are not removed in the stripping unit, so that the sheet retains its stability. Therefore, these holding webs are held by suction air like the panel. For this purpose, an elevator has several suction chambers with suction surfaces. The geometry of the suction chambers or the suction surfaces is matched to the shape of the panel or the shape of the waste part. The waste parts and the benefits are preferably held on the transport cylinder in two different levels by exhaust air. A stripping cylinder preferably only presses the compartment parts into a lower plane or one arranged closer to the transport cylinder. This ensures that the benefits and the waste parts can be separated from one another and can therefore be passed on separately to the next unit. In addition, the waste parts can then be easily removed from the transport cylinder by means of blown air after the blanks have been delivered.

the DE 103 00 235 A1 discloses a template for a suction roll in a machine for producing pieces of flat material cut out of a web of material. The material web is transported via suction rollers that are subjected to negative pressure. Depending on the shape of the panel, various areas are subjected to negative pressure via a stencil. The stencil is pushed onto the suction roller. The suction holes preferably have a T-shape.

the U.S. 6,715,394 B2 discloses a flexible punch tool for cutting an aperture in a material. The openings can be shaped in different ways. Furthermore, the document discloses a vacuum system to remove the cut-out parts.

the DE 10 2009 033 576 A1 discloses a carrier roller with suction and air blast function. Together with the clamped film knife, it forms a knife roller. The separation takes place by switching the suction air to blown air.

the DE 10 2009 033 575 A1 discloses a vacuum roll for transporting pieces of sheet material. A waste part or benefit is held on the surface by means of suction air. The object of the invention is to create a foil knife for use with a vacuum roller, in which uncontrolled detachment is avoided. Furthermore, the vacuum roller has suction passage openings for this purpose.

the DE 10 2017 213 389 A1 discloses a cutting die of a cutting cylinder with an air source. The document discloses vanes for directing air to improve the suction/blowing effect. The suction openings can have different shapes.

The invention is based on the object of creating an improved processing machine with at least one separating device and a method for treating substrates.

The object is achieved according to the invention by the features of claim 1 and claim 12.

An advantage that can be achieved with the invention consists in particular in the fact that, above all, the blanks are held in an improved manner on a transport cylinder and can be transported on to a downstream unit. The packing on the transport cylinder preferably has at least one suction surface matched to the blank (shape). The geometry of the suction surface is optimized for this. In particular, a production speed of the processing machine can be increased in this way. Separation of use and waste parts is more stable and easier. Even at high speeds, it is thus ensured that use and waste parts can be cleanly separated from one another.

A further advantage that can be achieved with the invention consists in particular in the fact that a benefit can be passed on to a subsequent unit in a simplified manner by means of an optimized suction surface shape. In particular, for this purpose the suction surface has a region whose extent, preferably its average extent, in the transverse direction A is reduced in comparison to the rest of the suction surface. In particular, this is achieved in that the suction surface for the blanks has at least one area whose cross section, in particular its width and/or its extent in the transverse direction A, decreases in the direction of rotation of the transport cylinder. For this purpose, the suction surface preferably tapers in the direction of rotation. Above all, the suction surface is reduced relative to the width of the respective blank that is currently being held on the suction surface. Thus, in the front area, in particular in the direction of rotation, the respective panel is sucked in with a reduced suction surface. In particular, this means that the benefit in the front area, ie the area in which the benefit is first lifted off the transport cylinder for transfer to the next unit, is made easier. In particular, it can thus be achieved that a lower suction force acts on the blanks in the front area of the suction surfaces and thus lifting the blanks and transferring them to a subsequent unit is facilitated. More preferably, the suction openings can also suck on areas of the sheet that hold the blanks together. These areas must also detach easily from the suction openings, otherwise the sheets may break.

A further advantage that can be achieved with the invention consists in particular in the fact that a particularly thin substrate can be reliably separated into use and waste parts by the separating device. For this purpose, the suction surface, in particular for holding the panel or the, is further optimized. In particular, additional webs are arranged in the suction surfaces for sucking up the blanks. The webs ensure that the particularly thin substrates are not bent or drawn into the suction chamber by the suction air. In particular, this also allows easier transfer to a subsequent unit.

A further advantage that can be achieved with the invention is, in particular, that the suction surface for sucking up the blanks is subjected to suction air via a suction opening. The suction opening preferably has a significantly reduced cross section compared to the suction surface. As a result, when the panel is lifted, the suction force or the negative pressure in the suction chamber quickly collapses, but the suction force in the corresponding air duct or opening is maintained. In this way, the air channel can also apply suction air and/or pressure to other suction chambers, for example for holding waste parts, and the panel can still be easily transferred. In particular, the suction surface has a suction surface that is at least three times as large as the cross-sectional surface of the suction opening. Such an arrangement is particularly advantageous when a large proportion of the substrate has waste parts. Then the same air channel must be used to hold the blanks as well as to hold the waste parts. A drop in pressure in the air duct itself would then result in the waste parts also no longer being able to be held on the transport cylinder. In particular, these should not be transferred to the next unit and must therefore be held longer on the transport cylinder. A smaller cross-section of the suction opening compared to the cross-section of the suction surface for sucking in the blanks thus ensures on the one hand that a blank can be easily detached and on the other hand that the waste parts can still be held.

A further advantage that can be achieved with the invention consists in particular in the fact that a suction surface is dimensioned relatively large in relation to the use or the waste parts, so that the use or the waste parts are subjected to sufficient suction force even with a small negative pressure.

Exemplary embodiments of the invention are shown in the drawings and are described in more detail below.

• 1 eine schematische Darstellung einer bogenverarbeitenden Maschine mit schematischer Darstellung einer Vorrichtung zum Behandeln von Substraten;
• 2 eine bevorzugte Ausführungsform des Transportzylinders der Trenneinrichtung mit der Dreheinführung und dem zumindest einen Überbrückungselement;
• 3 einen detaillierten Ausschnitt des Transportzylinders im Bereich des Zylinderkanals mit Mitteln zum Fixieren des Aufzugs im geschlossenen Zustand;
• 4 einen detaillierten Ausschnitt des Transportzylinders im Bereich des Zylinderkanals mit Mitteln zum Fixieren des Aufzugs im offenen Zustand;
• 5 eine schematische Darstellung eines ersten Luftversorgungsmittels;
• 6 eine schematische Darstellung eines zweiten Luftversorgungsmittels;
• 7 eine bevorzugte Ausführungsform einer Scheibe der Dreheinführung zur Zufuhr und/oder Abfuhr von Luft in einen Zylinder;
• 8 eine schematische Darstellung eines Luftversorgungsmittels des Sauggreifersystems;
• 9 eine schematische Darstellung des Transportzylinders mit Ausbrechzylinder;
• 10 einen detaillierten Ausschnitt des Ausbrechzylinders im Bereich des Zylinderkanals mit Mitteln zum Fixieren des Aufzugs im geschlossenen Zustand;
• 11 eine schematische Darstellung eines Transportzylinders mit umlaufenden Saugband;
• 12 eine schematische Darstellung eines Transportzylinders mit umlaufenden Saugband;
• 13 eine schematische Darstellung eines Transportzylinders mit umlaufenden Saugband;
• 14 eine schematische Darstellung eines Transportzylinders mit umlaufenden Saugband;
• 15 eine schematische Darstellung eines Transportzylinders mit umlaufenden Saugband;
• 16 eine schematische Darstellung eines Transportzylinders mit Mittel zum Zuführen eines Aufzugs;
• 17 eine schematische Darstellung einer bogenverarbeitenden Maschine mit schematischer Darstellung einer Vorrichtung zum Behandeln von Substraten.
• 18 eine perspektivische Darstellung der Trenneinrichtung;
• 19 eine Seitenansicht des Transportzylinders;
• 20 eine perspektivische Draufsicht auf den Aufzug mit Substrat;
• 21 eine schematische Darstellung unterschiedlicher Ausführungsformen der Saugflächen auf dem Aufzug;
• 22 eine schematische Darstellung des Aufzuges in einer Seitenansicht.

Show it:

• 1 a schematic representation of a sheet processing machine with schemati shear representation of a device for treating substrates;
• 2 a preferred embodiment of the transport cylinder of the separating device with the rotary inlet and the at least one bridging element;
• 3 a detailed section of the transport cylinder in the area of the cylinder channel with means for fixing the elevator in the closed state;
• 4 a detailed section of the transport cylinder in the area of the cylinder channel with means for fixing the elevator in the open state;
• 5 a schematic representation of a first air supply means;
• 6 a schematic representation of a second air supply means;
• 7 a preferred embodiment of a disk of the rotary inlet for supplying and/or discharging air into a cylinder;
• 8th a schematic representation of an air supply means of the suction pad system;
• 9 a schematic representation of the transport cylinder with stripping cylinder;
• 10 a detailed section of the stripping cylinder in the area of the cylinder channel with means for fixing the elevator in the closed state;
• 11 a schematic representation of a transport cylinder with circulating suction belt;
• 12 a schematic representation of a transport cylinder with circulating suction belt;
• 13 a schematic representation of a transport cylinder with circulating suction belt;
• 14 a schematic representation of a transport cylinder with circulating suction belt;
• 15 a schematic representation of a transport cylinder with circulating suction belt;
• 16 a schematic representation of a transport cylinder with means for supplying a lift;
• 17 a schematic representation of a sheet processing machine with a schematic representation of a device for treating substrates.
• 18 a perspective view of the separator;
• 19 a side view of the transport cylinder;
• 20 a perspective top view of the elevator with substrate;
• 21 a schematic representation of different embodiments of the suction surfaces on the elevator;
• 22 a schematic representation of the elevator in a side view.

The device for processing substrates 01 with a separating device 02, with which the processed substrate 01 can be separated into at least one waste part 09 and at least one panel 10, can be embodied as an independent machine and in this case has a feed system for substrate 01, which is not described in detail . According to a further embodiment, separating device 02 is part of a substrate-processing machine, in particular a sheet-processing machine, and is operated inline with the units of the sheet-processing machine. In particular, a sheet-fed printing press is provided as a sheet-fed machine, as is the case, for. Am 1 is shown.

The invention is described below using the example of a sheet-fed printing press, in particular an offset sheet-fed printing press, with this description being intended to apply mutatis mutandis to other sheet-processing machines and to an embodiment of the device as an independent machine.

The sheet-fed printing press includes a feed system for substrates 01, also referred to as feeder 07. Substrates 01 are understood to mean, in particular, sheet-shaped workpieces made of paper, cardboard, cardboard, corrugated cardboard, plastic or the like, which are preferably printable or printed. The substrates 01 are present as a stack in the feeder 07 of the sheet-fed printing press and are separated by it and fed to the units of the sheet-fed printing press downstream of the feeder 07 via an acceleration system 08. The sheet-fed printing press comprises at least one, preferably a plurality of, printing units 06. The printing units 06 each comprise, in particular, a printing cylinder 41 and a sheet guiding cylinder 42, preferably embodied as a transfer drum 42. A rubber blanket cylinder 43 carrying a rubber blanket is assigned to the printing cylinder 41, and this in turn is assigned a plate cylinder 44 carrying a printing plate. The plate cylinder 44 is in contact with an inking unit 45 and preferably also with a dampening unit. In printing unit 06, substrate sheet 01 is guided in a manner known per se by the sheet holding systems provided on impression cylinder 41 and sheet guiding cylinder 42, printed in the printing gap formed between impression cylinder 41 and rubber blanket cylinder 43 and sent to the subsequent unit of the sheet-fed printing press, e.g. B. in the form of the next printing unit 06 handed over. One or more processing units 46 can be configured downstream of the printing unit(s) 06 or between the printing units 06. The processing units 46 preferably comprise two processing cylinders, one of which, preferably the lower one, has a sheet holding system and the other, preferably the upper one, has a tool carrier. The processing cylinders are associated with one another to form a cylinder gap. At least one of the processing cylinders carries a tool. In the simplest case, a pair of processing cylinders is formed by the impression cylinder 41 and blanket cylinder 43 of a printing unit 06. In this case, a printing unit 06 serves as the processing unit 46. In this case, the clamping device for the rubber blanket is used to fasten the tool on the rubber blanket cylinder 43. The processing cylinders can be designed in many different ways. According to one embodiment, which is particularly suitable for punching and perforating applications, the upper processing cylinder is designed as a solid magnetic cylinder or carrier cylinder with magnet segments for receiving magnetic sheets and the lower processing cylinder as a surface-hardened cylinder or with a hardened sheet metal attached thereto.

According to another embodiment, which is particularly suitable for embossing or creasing or grooving applications, the upper processing cylinder is a solid magnetic cylinder or carrier cylinder with magnetic segments for receiving magnetic sheets and the lower processing cylinder is a surface-hardened cylinder or with a hardened sheet metal attached thereto or with a Sheet formed with hard rubber. In all of the cases mentioned, the lower processing cylinder can be provided with tool carriers or lift carriers that act mechanically, in particular in a positive or non-positive manner. The non-positively acting tool carriers or elevator carriers are designed in particular to act magnetically.

The sequence of the works of the sheet-fed press results from the technological requirements. One or more processing units 46 are preferably configured downstream of one or more printing units 06. If there are several printing units 06, these are usually equipped with different tools from the group of cutting tools, punching tools, creasing tools, perforating tools or grooving tools. Likewise, one or more processing units 46 can precede one or more printing units 06. Alternatively, one or more processing units 46 can also be interposed between one or more printing units 06. The sheet-fed printing press preferably also includes one or more coating units, which are preferably located downstream of the printing units 06 or are connected to the processing units 46.

A substrate-processing, in particular sheet-fed, machine that is not a printing press can have the same structure as the sheet-fed printing press described, minus the printing units 06.

The separating device 02 is formed downstream of the printing units 06 or the processing units 46. The separating device includes a transport cylinder 03. The transport cylinder 03 is twice as large, i. h it transports two substrate sheets 01 per revolution. However, the invention is not limited to a double-sized version of the transport cylinder 03. The invention is described below using a single-sized system. This description is also representative of the double-sized system or multi-sized system in analogous correspondence. In the area of the lateral surface of the transport cylinder 03, there is a sheet holding system for fixing the front edges of the sheet-like substrate 01, in particular a gripper system (in the case of a double-sized system, two sheet holding systems are formed). The gripper system is preferably designed as a suction gripper system 17 and is supplied by air supply means. The suction gripper system 17 is designed to generate a suction area whose extent in the axial direction of the transport cylinder 03 is a multiple of its extent in the circumferential direction. The extension of the suction area of the suction gripper system 17 in the circumferential direction of the transport cylinder 03 is preferably 15 mm. The suction area can be formed by a continuous opening that extends across the width of the transport cylinder 03 or by a large number of suction openings located next to one another. The extension of the suction area in the axial direction of the transport cylinder 03 is advantageously designed to be adjustable. For this purpose, adjusting means 28, in particular in the form of shut-off valves, can be provided, in particular in the supply path for the suction air for the outer suction openings in relation to the center of the transport cylinder 03. The adjustability of the extension of the suction area has the advantage that suction air consumption is minimized.

The transport cylinder 03 also preferably has means (in the case of a double-sized system, two fixing means are formed) for fixing an interchangeable elevator 05. The means for fixing are preferably designed as clamping grippers. A respective elevator 50 can be fixed with them at the rear edge and at the front edge. The means for fixing the front edge of the elevator 05 are preferably through the Klemmele ment leading edge 22 (also referred to as a clamping jaw) and the correlatively cooperating with this to form a clamping gap further clamping element 24 (also referred to as impact) is formed. The other clamping element 24 is mounted firmly on the base body of the transport cylinder 03.

The clamping element 22 is firmly connected to a lever 21 which is mounted on the base body of the transport cylinder 03 so that it can pivot about a pivot point 34 . The lever 21 is braced by an energy accumulator 23, preferably designed as a spring, in such a way that the clamping gap formed between the clamping element 22 and the further clamping element 24 closes. The spring 23 is designed as a compression spring and is supported with one end on the lever 21 and with its other end on the head of a screw screwed into the base body of the transport cylinder 03 . the 3 shows the front edge clamping gripper with a fixed front edge of the elevator 05, i. h when closed. the 4 shows the front edge clamping gripper with the front edge of the elevator 05 released, d. h in the open state. The front edge of the clamping gripper is opened against the force of the spring 23 . The force required to open the front edge of the clamping gripper is preferably applied by an actuating element 23 which can be designed in particular as a pneumatic muscle 23 . The actuating element or the pneumatic muscle 23 preferably acts on a further lever 33, one end of which is supported on a fixed point of the transport cylinder 03. Under the force of the actuating element 23, which can be designed in particular as a pneumatic muscle 23, the further lever 33 can be pivoted about the aforementioned fixed point. If it is designed as a pneumatic muscle 23, compressed air is applied to it, under the effect of which it expands, with the further lever 33 being pivoted. The pivoting movement of the further lever 33 is limited by a wall formed on the transport cylinder 03 .

The further lever 33 acts on a ball 35 which is formed between the further lever 33 and the lever 21 and shifts it. With the displacement of the ball 35, the lever 21 and with it the clamping element front edge 22 is also displaced. If the actuating element 23 is actuated in the opposite direction, or the pneumatic muscle 23 is depressurized, d. h is switched off, the force of the energy accumulator 23, in particular the spring 23, shifts the lever 21, the ball 35 and the further lever 33 back in the direction of their starting position until the movement is stopped by the clamping element front edge 22 striking the further clamping element front edge 24 or .the elevator 05 is limited. The rear edge of the dressing 05 can be fixed between a rear edge clamping element 47 and a further rear edge clamping element 48, which together form a further clamping gap. The force required to close the trailing edge clamping gripper is applied by a rotatable tensioning shaft 50 which acts on the trailing edge clamping element 47 via a toggle lever 51 . At least one of the clamping grippers, ie the front edge clamping gripper or the rear edge clamping gripper, can be displaced in the circumferential direction of the transport cylinder for tensioning the elevator. In the 3 and 4 the rear edge of the clamping gripper can be moved. In particular, the rear edge of the clamping gripper is mounted on a carriage that can be displaced in the circumferential direction of the transport cylinder 03. In addition to the rear edge clamping gripper, the carriage 49 preferably also carries the tensioning shaft 50 and the toggle lever 51. To tension the elevator 05, it is first fixed at both ends by the front edge clamping gripper and the rear edge clamping gripper. Then the carriage 49 is moved clockwise, which is effected by a further actuating element 52, which can also be designed as a pneumatic muscle. Irrespective of the type of design of the means for fixing the elevator 05, they preferably carry positioning pins or are preferably assigned positioning elements. The positioning pins or positioning elements can in particular be assigned directly to the further clamping element front edge 22 .

The transport cylinder 03 preferably has first and second openings 12, 13 which, when the dressing 05 is fixed, are at least partially covered by the openings 98; 99 are covered. The openings therefore act as suction openings 98; 99. The openings 12,13 are connected to air supply means 14,15. In particular, first air supply means 14 are provided for supplying the first openings 12 with air and second air supply means 15 for supplying the second openings 13 with air. In the following context, air is understood to mean all forms of system air, i. h in particular blown air or suction air, which are particularly suitable physical effect such. B. to exert force and which can be identified by at least one of the parameters static pressure, dynamic pressure or flow rate. In particular, the chemical composition of the air or its moisture content is not important. Such air is generated in a manner known per se using compressors, compressors, vacuum pumps, suction pumps or similar components. The aforesaid air generators can be comprised by the first and second air supply means 14, 15 and, in particular, together with all the means which supply the air to the openings 12, 14 and/or control the supply, form the air supply means 14, 15.

The first and the second openings 12, 13 can preferably be supplied with air independently of one another. Preferably, the air supply to either the first or the second openings 14, 15 or both openings 14, 15 is switchable. Switchability in this sense means, in particular, switching between suction air and blast air, it not being important which type of air supply is switched to which type.

The first and the second openings 12, 13 are formed in the lateral surface of the transport cylinder 03. The first and second openings 12, 13 are preferably arranged alternately in the circumferential direction of the transport cylinder 03 or in the axial direction of the transport cylinder 03. The first and/or the second openings 12, 13 are preferably designed in the form of grooves or holes. The arrangement of the first and second openings 12, 13 in the lateral surface of the transport cylinder 03 preferably results in a fine-meshed network of elements with which any openings 98; 99 can be supplied with air. The arrangement of the openings 98; 99 in elevator 05 takes place in accordance with the arrangement of waste part or parts 09 on the one hand and blank 10 on the other. For example, in the area of those first openings 12 that are formed in the area of the panel, openings can be formed in the lining 05, while all second openings 13 that are formed in the area of the panel 10 have no openings 98; 99 in elevator 05 face to face. The same applies mutatis mutandis to the area of waste parts 09, in which case the second openings 13 have openings 98; 99 face each other in the elevator 05, while the first openings 12 are covered by closed areas of the elevator 05. Through these measures, blanks 10 and waste parts 09 can be treated differently or fixed on the lateral surface of the transport cylinder 03 or its elevator 05. The details of the air supply to the first and second openings 12, 13 are particularly shown in FIGS 5 and 6 shown.

The air supply means 14, 15 for supplying the first and second openings 12, 13 preferably comprise one or more rotary valves or rotary inlets. The rotary slides or rotary inlets are preferably formed on the end face of the transport cylinder 03 or are assigned to it. Two rotary slides or two rotary inlets are preferably formed on opposite end faces of the transport cylinder 03. At the in the 5 , 6 and 7 In the example shown, the rotary slide or the at least one rotary inlet comprises a disk 18, which is assigned to one of the end faces of the transport cylinder 03. A plurality of groove-shaped recesses 19, 56, 57 are formed in the disk 18, which preferably extend in the shape of a segment of a circle, coaxially with the axis of rotation 16 of the transport cylinder 03. The recess 19 is supplied with air via a first supply socket 53 , the recess 56 via a second supply socket 54 and the recess 57 via a third supply socket 55 . The recesses 19, 56 and 57 are formed on the side of the disk 18 facing the transport cylinder 03. They extend in different radii in the shape of a segment of a circle, coaxially to the axis of rotation 16 of the transport cylinder 03. Each of the recesses 19, 56 and 57 does not have to be continuous in the circumferential direction of the disk 18 but rather can be perforated, so that several on the same radius viewed in the circumferential direction of the disk 18 successive recesses 19, 56 and 57 form. In terms of their distance (radius) from the axis of rotation 16 of the transport cylinder 03, the recesses 19, 56 and 57 correspond to openings 58 formed in the end face of the transport cylinder 03. Each of the openings 58 in the end face of the transport cylinder 03 communicates via additional lines either with a single or part of the first openings 12 or with a single or part of the second openings 13 in the lateral surface of the transport cylinder 03 or with the suction gripper system 17. Of course, this only applies as long as the respective opening of the respective recess 19, 56 and 57 depends on the angular position of the Transport cylinder 03 opposite. At the in 2 In the exemplary embodiment shown, the recesses 57 closest to the axis of rotation 16 of the transport cylinder 03 supply the suction gripper system 17, the recesses 56 adjacent to these supply the second openings 13, and the recesses 19 adjacent to these supply the first openings 12.

The disc 18 is stationary relative to the transport cylinder 03, which rotates about the axis of rotation 16 in the operating state. Due to the extension of the recesses 19, 56 and 57 in the circumferential direction of the transport cylinder 03, areas of suction or blown air are determined, which are formed on the lateral surface of the transport cylinder 03 in relation to the angle of rotation.

Superimposed on these effects, the areas of suction or blown air can also be determined by the type of air supply or by switching it on or off. Thus, the area supplied in its extension by the same air supply means 12 or 13 corresponding to the recesses 19, 56 can be shortened in that the air supply is switched off in relation to the angle. Likewise, in its extent, the same air supply means 12 or 13 area supplied according to the recesses 19, 56 can be subdivided into at least one suction area and at least one blowing area by switching the air supply between a suction air supply and a blown air supply. The suction area on the lateral surface of the transport cylinder 03 is used for fixing and the blowing area for repelling blanks 10 or waste parts 09. It goes without saying that the air supply for the first openings 12 is preferably independent of the air supply for the second openings 13. According to a preferred embodiment, the first and/or the second air supply means 14, 15 are designed to switch off the suction air supply or to switch between the suction air supply and the blower air supply depending on the angular position of the openings 12, 13 supplied in each case. The first air supply means 14 preferably switch the air supply to the first openings 12 off or from the suction air supply to the blowing air supply when the respective first openings 12 reach a first release point as a result of the transport cylinder 03 rotating about its axis of rotation 16 . More preferably, the second air supply means 15 switch the air supply to the second openings 13 off or from the suction air supply to the blowing air supply when the respective second openings 13 reach a second release point as a result of the transport cylinder 03 rotating about its axis of rotation 16. The disk 18 is preferably connected to a frame via a torque support 20 and is rotatably mounted on the transport cylinder 03. The transport cylinder 03 is preferably rotatably mounted in the same frame to which the torque arm 20 is articulated. For example, a position of the pane 18 can be changed, in particular rotated, via an adjusting element 84 .

In order to shift the areas of suction or blowing air, which are formed on the lateral surface of the transport cylinder 03 in relation to the angle of rotation, actuators for rotating the disk 18 can be provided.

In order to facilitate assembly, the disc 18 preferably has a recess 78 which allows the disc 18 to be displaced radially in the sense of displacement for the purpose of replacement.

Instead of a disc 18, several discs 18 can be provided. In the case of several disks 18, the recesses 57 for supplying the suction pad system 17 are formed in one of the disks 18 and the recesses 19 and 56 for supplying the first and second openings 12, 13 are formed in the other disk 18.

The details of the supply of the suction gripper system 17 are shown in a preferred variant in 8th shown. In the exemplary embodiment shown, the disk 18 is used to supply the first and the second openings 12, 13 and to supply the suction pad system 17.

As an alternative to this, the disk 18 can also exclusively have a groove-shaped recess 57, which preferably extends in the shape of a segment of a circle, coaxially to the axis of rotation 16 of the transport cylinder 03. In this embodiment, too, the recess 57 is supplied with air by a third supply nozzle 55 . The recess 57 is formed on the side of the disk 18 facing the transport cylinder 03 . The recess 57 is preferably continuous or interrupted in the circumferential direction of the disc 18 so that several recesses 57 or sections of the recess 57 lying one behind the other viewed in the circumferential direction of the disc 18 are formed on the same radius. In terms of its distance (radius) from the axis of rotation 16 of the transport cylinder 03, the recess 57 corresponds to one or more openings 58 formed in the end face of the transport cylinder 03. The or each opening 58 communicates with the suction gripper system 17 via additional lines. Of course, this only applies as long as the respective opening 58 of the recess 57 depending on the angular position of the transport cylinder 03 opposite. In other words, the length and the position of the angular range in which suction air is applied to the suction gripper system 17, i. h the suction gripper system 17 develops a holding effect, determined by the extension and position of the recesses 57.

It goes without saying that the air supply of the suction gripper system 17 is not limited to the described embodiment with disks 18 . The air supply of the suction pad system 17 can also be realized with other known embodiments of an air supply that can activate and deactivate the suction air applied to the suction pad system 17 in cycles sufficiently quickly.

The suction gripper system 17 is formed in the area of the lateral surface of the transport cylinder 03. The suction gripper system 17 is preferably assigned to the means for fixing the dressing 05 in place. In particular, the suction gripper system 17 can be mounted on the means for fixing the elevator 05. The means for fixing the dressing 05 in place, and thus also the suction gripper system 17, is preferably mounted so that it can move, in particular pivot. The suction gripper system 17 can in particular be assigned to the front edge 22 of the clamping element. It is also advantageous to arrange the suction pad system 17 together with the clamping element 22 on the lever 21 .

According to a preferred embodiment, a stripping cylinder 04 is arranged adjacent to the transport cylinder 03 . Like the transport cylinder 03, the stripping cylinder 04 is rotatably mounted. The stripping cylinder 04 is used to break out waste parts 09 or blanks 10. The stripping cylinder 04 preferably has third openings 32. Third air supply means are provided for supplying the third openings 32 with air.

Like the transport cylinder 03, the stripping cylinder 04 can also be double-sized or single-sized. In the case of a double-sized design of the stripping cylinder 04, its circumference or diameter corresponds to the circumference or diameter of a double-sized transport cylinder 03. The stripping cylinder 04 is preferably designed to be single-sized. In terms of its structure, the stripping cylinder 04 preferably resembles the transport cylinder 03 in many features, so that for the description of the structure of the stripping cylinder 04 reference is made to the statements regarding the structure of the transport cylinder 03. This applies in particular to all assemblies of the transport cylinder 03 or the stripping cylinder 04 for which no structural differences or absence are expressly pointed out. The nature of the stripping cylinder 04 is described below using a single-sized system. This description is also representative of the double-sized system or multi-sized system in analogous correspondence. In contrast to transport cylinder 03, stripping cylinder 04 does not include a sheet holding system for fixing the front edges of sheet-type substrate 01.

Like the transport cylinder 03, the stripping cylinder 04 preferably has means for fixing a replaceable packing 05. The means for fixing are preferably designed as clamping grippers. A respective dressing 05 can be fixed with them at the rear edge and at the front edge. The means for fixing the front edge of the dressing 05 are preferably formed by the front edge clamping element 22 and the further clamping element 24 interacting correlatively with this to form a clamping gap. The front edge clamping element 22 is mounted on the base body of the stripping cylinder 04 . The further clamping element 24 can in particular be formed as a leaf spring assembly. Adjacent to the further clamping element 24 is arranged a control element 25 preferably designed as a pneumatic muscle. The control element is preferably connected to an air supply, with which an overpressure can be applied to the control element 25 . When overpressure is applied, the actuating element 25 expands, bearing against the further clamping element 24 and deforming it. As a result of the deformation, in particular the bending of the further clamping element 24, its extension changes in the direction of the clamping element front edge 22. By applying an overpressure z. g. in the form of compressed air on the actuating element 25, the gap formed between the front edge of the clamping element 22 and the further clamping element 24 can be enlarged and reduced when the overpressure on the actuating element 25 is switched off, which corresponds to the clamping of the elevator 05. the 10 shows the clamping gripper of the stripping cylinder 04 front edge with a fixed front edge of the elevator 05, i. h when closed.

The rear edge of the dressing 05 can be fixed between a rear edge clamping element 47 and a further rear edge clamping element 48, which together form a further clamping gap. The force required to close the trailing edge clamping gripper is applied by a rotatable tensioning shaft 50 which acts on the trailing edge clamping element 47 via a toggle lever 51 .

At least one of the clamping grippers, i.e. the front edge clamping gripper or the rear edge clamping gripper, can be displaced in the circumferential direction of the stripping cylinder 04 in order to tension the dressing 05. In the 10 the rear edge of the clamping gripper can be moved. In particular, the rear edge of the clamping gripper is mounted on a carriage 49 that can be displaced in the circumferential direction of the stripping cylinder 04. In addition to the rear edge clamping gripper, the carriage 49 preferably also carries the tensioning shaft 50 and the toggle lever 51. To tension the elevator 05, it is first fixed at both ends by the front edge clamping gripper and the rear edge clamping gripper. Subsequently, the carriage 49 is displaced counterclockwise, which is effected by a further actuating element 52, which can also be designed as a pneumatic muscle.

Irrespective of the type of design of the means for fixing the elevator 05, they preferably carry positioning pins or are preferably assigned positioning elements. The positioning pins or positioning elements can in particular be assigned directly to the further clamping element front edge 22 . It goes without saying that the elements described for fixing the front edge and the elements for fixing the rear edge can also be designed in a different way. As an alternative to forming non-positively acting elements, it has also proven to be advantageous if the elements for fixing the front edge and/or the elements for fixing the rear edge are configured for the form-fitting fixing of elevators 05. In this case, in particular, hook-shaped or claw-shaped retaining elements can be formed, which correspond to recesses formed in elevator 05 or engage in support rails that are firmly connected to the elevator 05.

The front edge of the clamping gripper or the rear edge of the clamping gripper are preferably mounted in a channel of the stripping cylinder 04, which can be covered by a channel cover.

The stripping cylinder 04 preferably has third openings 32, which, when the dressing 05 is fixed, are formed at least partially by the openings 98; 99 are covered. The third openings 32 are connected to third air supply means. In the following context, air is understood to mean all forms of system air, i. h in particular blown air or suction air, which are particularly suitable physical effect such. B. to exert force and which can be identified by at least one of the parameters static pressure, dynamic pressure or flow rate. Such air is generated in a manner known per se using compressors, compressors, vacuum pumps, suction pumps or similar components.

The third openings 32 can be supplied with suction air. The air supply is preferably designed to be switchable. Switchability in this sense means, in particular, switching between suction air and blast air, it not being important which type of air supply is switched to which type. The third openings 32 are formed in the lateral surface of the stripping cylinder 04. The third openings 32 are preferably in the form of grooves or holes. The arrangement of third openings 32 in the lateral surface of the stripping cylinder 04 preferably results in a fine-meshed network of elements with which any openings 98; 99 can be supplied with air. The arrangement of the openings 98; 99 in the elevator 05 takes place in accordance with the arrangement of waste part or parts 09 on the one hand or panel 10 on the other hand. For example, in the area of those third openings 32 that are formed in the area of use, openings 98; 99 to be trained in elevator 05. This proves to be advantageous if the stripping cylinder 04 is to be used to transport the panel 10. If the demolition cylinder 04 is to be used to transport waste parts 09, openings 99 are preferably formed in the lift 05 in the region of those third openings 32 that are formed in the region of waste parts 09. Through these measures, blanks 10 or waste parts 09 can be treated differently or fixed on the lateral surface of the transport cylinder 03 or its packing 05. The release of the blanks 10 or waste parts 09 can be assisted by applying blown air to the third openings 32 .

The details of the air supply to the third openings 32 are not shown separately and are described below with reference to the design of the air supply means 14, 15 on the transport cylinder 03. The air supply means for supplying the third openings 32 preferably comprise a rotary valve or a rotary inlet. The rotary slide or the rotary inlets are preferably formed on the end face of the transport cylinder 03 or assigned to it. The rotary slide or the at least one rotary inlet preferably includes a disk 18, which is assigned to one of the end faces of the stripping cylinder 04. A recess X is formed in the disk 18, which preferably extends in the shape of a segment of a circle, coaxially to the axis of rotation of the stripping cylinder 04. The recess is supplied with air via a fourth supply nozzle 53 . The recess is formed on the side of the disc 18 facing the stripping cylinder 04 . The recesses are not continuous in the circumferential direction of the disc 18 but rather can be perforated, so that several recesses lying one behind the other are formed on the same radius viewed in the circumferential direction of the disc 18 . In terms of its distance (radius) from the axis of rotation of the stripping cylinder 04, each recess corresponds to openings 58 formed in the end face of the stripping cylinder 04. Each of the openings 58 in the end face of the transport cylinder 03 communicates via additional lines either with a single or part or all of the third openings 32 in the lateral surface of the stripping cylinder 04. Of course, this only applies as long as the respective opening 58 is opposite the respective recess depending on the angular position of the stripping cylinder 04.

The disc 18 is stationary relative to the stripping cylinder 04, which rotates about its central axis during operation. The extent of the recesses in the circumferential direction of the stripping cylinder 04 determines areas of suction or blast air that are formed on the lateral surface of the stripping cylinder 04 in relation to the angle of rotation.

Superimposed on these effects, the areas of suction or blown air can also be determined by the type of air supply or by switching it on or off. In this way, the area supplied by the third air supply means corresponding to the recess can be shortened in that the air supply is switched off in relation to the angle. Likewise, in its extent through the third air supply means corresponding to the recesses supplied area can be divided into at least one suction area and at least one blowing area by switching the air supply between a suction air supply and a blown air supply. The suction area on the lateral surface of the stripping cylinder 04 is used for fixing and the blowing area for removing blanks 10 or waste parts 09.

According to a preferred embodiment, the third air supply means are designed to switch off the suction air supply or to switch between the suction air supply and the blower air supply depending on the angular position of the third openings 32 supplied in each case. The third air supply means preferably switch the air supply to the third openings 32 off or from suction air supply to blown air supply when the respective third openings 32 reach a third release point as a result of the rotation of the stripping cylinder 04 about its central axis. The disk 18 is preferably connected to a frame via a torque support 20 and is rotatably mounted on the stripping cylinder 04 . The stripping cylinder 04 is preferably rotatably mounted in the same frame to which the torque arm 20 is articulated.

In order to shift the areas of suction or blown air that are formed on the outer surface of the stripping cylinder 04 in relation to the angle of rotation, actuators for rotating the disk 18 can be provided.

In order to facilitate assembly, the disc 18 preferably has a recess 78 which allows the disc 18 to be displaced radially in the sense of displacement for the purpose of replacement. The recess 78 for assembly has an extension A78 that is greater than the diameter A81 of a pin 81 of the stripping cylinder 04 in the region of the stripping cylinder 04 in which the disk 18 is associated with it. The at least one recess 78 for mounting has at least the same size and/or extent A78 as a diameter A79 of a cylinder pin 79 of the at least one transport cylinder 03.

The stripping cylinder 04 and the transport cylinder 03 contribute to the treatment of substrates 01, in particular to the separation or stripping of processed, i. h substrate 01 that has been cut through or has ridges or is perforated into at least one waste part 09 and at least one blank 10, preferably one strip 05 each. When separating or breaking out, remaining holding ridges 102 or material connections that are not intended to be completely cut through, in particular fibers or fiber bundles in the area of cutting lines between Waste part 09 and at least one benefit 10 torn. For this purpose, one of the linings 05 can be designed as a female mold and the other lining 05 as a male mold. The patrix has a base plane and areas that are raised relative to the base plane. The raised areas act on the substrate 01 and form tools. The die has a base plane and areas that are recessed relative to the base plane or other recesses. The die and the die are arranged on the transport cylinder 03 or the stripping cylinder 04 in such a way that the raised areas of the die are opposite the recessed areas or the further recesses of the die. The patrix forms a kind of counterpart to the matrix. The matrix is arranged either on the transport cylinder 03 or the stripping cylinder 04 and the patrix on the other cylinder. The other cylinder in this sense is the cylinder that cooperates with the cylinder carrying the matrix (transport cylinder 03 or stripping cylinder 04). The matrix is preferably arranged on the transport cylinder 03 and the patrix on the stripping cylinder. The male and female tool pair described above preferably differs from male and female tool pairs as they are used for cutting or perforating, e.g. B. on the processing cylinders upstream of the separating device 02. The structural design of the patrix is determined by its function of only pressing the elements to be separated or broken out into the recessed areas or the further recesses of the matrix. Accordingly, the raised areas of the patrix can also have significantly smaller extensions than the corresponding depressed areas or further recesses of the matrix. In particular, a flexographic printing plate can be used as the patrix. In an alternative embodiment, the patrix does not have any areas that are raised relative to the base plane, but rather a base plane that is raised overall. In this case, the patrix is provided with an elastic coating or is formed from an elastic material, at least on the side facing the matrix.

When separating or breaking out, waste parts 09 and blanks 10 are moved relative to one another, with residual webs or individual fibers or fiber bundles being torn in the area of the cutting lines. For this purpose, either the waste parts 09 or the blanks 10 are preferably pressed by the male mold into the recessed areas or the other recesses of the female mold. In the case of using a male mold with an elastic surface, the waste parts 09 are pressed into the recessed areas or the further recesses of the female mold, whereby the surface of the male mold expands in these places, while in areas of the surface outside the recesses or further recesses ments in which the substrate is pressed against the surface of the matrix. If a patrix with an elastic surface is used, it can also be designed as a sleeve.

According to a further preferred embodiment, the transport cylinder 03 is not assigned a stripping cylinder 04, with the waste parts 09 and blanks 10 also being moved relative to one another in this embodiment and residual webs or individual fibers or fiber bundles being torn in the area of the cutting lines. The separating device 02 is preferably designed in such a way that it only acts on the side of the processed substrate 01 that faces the transport cylinder 03, while the substrate 01 is being transported on the transport cylinder 03. In a preferred embodiment, the separating device 02 is formed from raised areas and areas of the surface of the transport cylinder 03 that are recessed relative to the raised areas. First openings 12 , which can be operatively connected to first air supply means 14 , are more preferably assigned to the recessed areas.

The first air supply means 14 are preferably designed to supply suction air. More preferably, the lateral surface of the transport cylinder 03 is assigned an interchangeable dressing 05, with the raised areas of the surface of the transport cylinder 03 being replaced by the dressing 05 and the recessed areas of the surface of the transport cylinder 03 being replaced by the lateral surface of the transport cylinder 03 in the area of openings formed in the dressing 05 98; 99 are formed. Second openings 13, which are in operative connection with second air supply means 15, can be formed in the raised areas and/or the recessed areas of the surface of the transport cylinder 03. Furthermore, the first and/or the second air supply means 14, 15 can be switchable between a suction air supply and a blown air supply. In order to implement the relative movement of the waste parts 09 and blanks 10 relative to one another, the transport cylinder 03 can be assigned a lift 05, which is designed in particular in the manner of a matrix and has recessed areas or further openings 98; 99. In the area of the recessed areas or further openings 98; 99, a negative pressure is applied via the first and/or second openings 12, 13, which moves the waste parts 09 and blanks 10 relative to one another, i.e. in particular pulls the waste parts 09 into the recessed areas or the further openings, while the blanks 10 are on the Base level of the die are supported. As an alternative to this, it can also be provided that the blanks 10 are pulled into the recessed areas or the further openings, while the waste parts 09 are supported on the base plane of the die.

In other words, the separating process is preferably effected solely by the force of the negative pressure present in the recessed areas or other openings or the suction air on the sides of blanks 10 or waste parts 09 facing transport cylinder 03. In the area of the recessed areas, there are preferably openings 98; 99 arranged. These ensure that the negative pressure present at the first and/or second openings 12, 13 can spread to the side of the blank 10 or waste parts 09 that faces the transport cylinder 03.

According to another preferred embodiment, with or without a stripping cylinder 04, a circulating conveyor belt 29 is assigned to the transport cylinder 03, as shown in particular in FIG 11 or 12 . is evident. The conveyor belt 29 is preferably arranged above the transport cylinder 03. The conveyor belt 29 is assigned to partially wrap around the transport cylinder 03, preferably forming a wrap angle. As an alternative to this, the conveyor belt 29 can also be assigned to the transport cylinder 03, forming a tangent point 36. More preferably, the tangent point 36 is formed in the 12 o'clock position of the transport cylinder 03. The extent of the conveyor belt 29 is determined by the arrangement of deflection rollers. The conveyor belt 29 preferably has a horizontally extending transport area 37 . The conveyor belt 29 can in particular be designed as a suction belt. More preferably, at least in the transport area 37 , suction air is applied to the transport belt 29 . It follows from this that the conveyor belt 29 can be designed for the suspended transport of blanks and/or waste parts 10, 09. The conveyor belt 29 has the particular function of taking over the processed substrate sheet 01, waste parts 09 or blanks 10 at the tangent point 36 or in the area where the conveyor belt 29 wraps around it, in order to take over the transport cylinder 03 from it and transport it further.

Another transport system can be connected to the conveyor belt 29 , for example in the form of a further conveyor belt 30 . An overlapping area is preferably formed between the conveyor belt 29 and the additional conveyor belt 30, in which functionally processed substrate sheets 01 or blanks 10 and/or waste parts 09 can be transferred from the conveyor belt 29 to the additional conveyor belt 30. More preferably, the further conveyor belt 30 is designed for the horizontal transport of blanks and/or waste parts 10, 09.

It goes without saying that instead of the additional conveyor belt 30, another suitable transport system can also be configured, that processed substrate sheet 01 or panel 10 and/or waste parts 09 from the conveyor belt 29. Instead of the further conveyor belt 30, a container for receiving waste parts can also be arranged under the conveyor belt 30.

In addition to the conveyor belt 29, another transport system 76 can also be attached directly to the transport cylinder 03, i. h, forming a transfer area or transfer point between the transport cylinder 03 and the further transport system for processed substrate sheets 01 or panels 10 and/or waste parts 09. This further transport system 76 is preferably designed as a sheet-guiding cylinder or sheet-guiding drum or chain conveyor system with gripper bridges or conveyor belt.

The operation of an embodiment as preferably defined by the 11 or 12 . illustrated can be described as follows. The illustrated embodiment of the device for treating substrates is preferably part of a sheet-fed printing press. The sheet-fed printing press can include one or more printing units. More preferred are the in 11 or 12 . The embodiment shown has two processing cylinders, between which the substrate 01 can be inserted, with the substrate 01 being processed upstream as it passes through tool parts from the group of cutting tools, punching tools, creasing tools and perforating tools that are active in the cylinder gap. One of the processing cylinders is in 11 or 12 . shown as a semicircle. The processing cylinder is preferably designed as a sheet transport cylinder and has a sheet holding system. The sheet transport cylinder transfers a processed substrate sheet 01 to the transport cylinder 03 at the tangent point A between the transport cylinder 03 and the sheet transport cylinder upstream. The sheet holding system of the sheet transport cylinder releases the processed substrate sheet 01, while the gripper system, in particular the suction gripper system 17 of the transport cylinder 03, holds the processed substrate sheet, in particular the cut substrate sheet 01 takes over. The substrate sheet 01 preferably comprises an edge and waste parts 09 and blanks 10 connected to it by so-called residual webs. The transport cylinder 03 carries an elevator 05. The elevator 05 has openings 98; 99 and is provided at the points where it acts on benefit 10 with depressions. openings 98; 99 are introduced in the region of the panel 10 at the points in the elevator 05 at which first openings 12 are formed, with the second openings 13 in the region of the panel 10 being covered by the elevator 05, i.e. being closed. openings 98; 99 are also introduced in the area of the waste parts 09 at the points in the elevator 05 at which second openings 13 are formed, the first openings 12 in the area of the waste parts 09 being covered by the elevator 05, i.e. being closed. When the first openings 12 have passed the tangent point A as a result of the rotation of the transport cylinder 03 or exactly at the tangent point A, the first air supply means 14 applies a negative pressure to the first openings 12, which presses the blanks 10 on the lateral surface of the transport cylinder 03 or on the elevator 05 fixed. As a result of the further rotation of the transport cylinder 03, the blanks 10 fixed by the vacuum and the waste parts 09 reach the tangent point B, which is formed between the transport cylinder 03 and the stripping cylinder 04. At the tangent point B, the raised areas of the elevator 05, which is arranged on the stripping cylinder 04, come into contact with the surfaces of the waste parts 09 and press the waste parts 09 into the depressions of the elevator 05 fixed on the transport cylinder 03. The residual webs that the waste parts 09 connect to the frame or to good parts 10, torn. Preferably at tangent point B, a negative pressure is applied via the second air supply means 15 to the second openings 13 in the area of the waste parts 09, which fixes the waste parts 09 to the lateral surface of the transport cylinder 03 or to the elevator 05. As an alternative to this, the negative pressure can also be applied via the second air supply means 15 to the second openings 13 in the area of the waste parts 09 at the target point A or immediately thereafter. When the respective blanks 10 reach the transfer point or transfer area C between the transport cylinder 03 and the transport belt 29, the first air supply means 14 are preferably deactivated. The negative pressure in the area of the first openings 12 is no longer present and the blanks 10 are no longer fixed and thus released. As a result of the negative pressure preferably applied to the conveyor belt 29, the blanks 10 are lifted from the transport cylinder 03 in the transfer point or transfer area C, fixed to the underside of the conveyor belt 29 and transported away hanging from it. The transfer of the blanks 10 from the transport cylinder 03 to the transport belt 29 can be assisted by applying excess pressure to the first openings 12. The supply of the first openings 12 is preferably switched over from negative pressure to positive pressure when the first openings reach the transfer point or transfer area C in the area of the respective panel 10 . The blanks 10 can preferably be transported away with the additional conveyor belt 30 . For this purpose, the conveyor belt 29 conveys the blanks 10 to the further conveyor belt 30 and transfers the blanks 10 to the further conveyor belt 30. For the transfer, the negative pressure applied to the conveyor belt 29 is preferably deactivated, so that the blanks under the effect of gravity or by additional suction on the wide Ren conveyor belt 30 are fixed on this and transported away by this. When the waste parts 09 reach the release point D, the negative pressure present at the second openings 13 in the region of the waste parts 09 is deactivated or, preferably, an overpressure is applied instead of the negative pressure. As a result, the waste parts 09 are released or the waste parts 09 are actively repelled, which can be picked up by a waste container. In the area of release point D, the front edge of the substrate sheet 01 is preferably also released by the gripper system 17 in addition to the waste parts 09.

The further operation of an embodiment as preferably by the 11 or 12 . illustrated can be described as follows. The sheet transport cylinder transfers a processed substrate sheet 01 to the transport cylinder 03 at the tangent point A between the transport cylinder 03 and the sheet transport cylinder upstream. The sheet holding system of the sheet transport cylinder releases the processed substrate sheet 01, while the gripper system, in particular the suction gripper system 17 of the transport cylinder 03, holds the processed substrate sheet, in particular the cut substrate sheet 01 takes over. The substrate sheet 01 preferably comprises an edge and waste parts 09 and blanks 10 connected to it by so-called residual webs. The transport cylinder 03 carries an elevator 05. The elevator 05 has openings 98; 99 and is provided at the points where it acts on benefit 10 with depressions. openings 98; 99 are introduced in the region of the panel 10 at the points in the elevator 05 at which first openings 12 are formed, with the second openings 13 in the region of the panel 10 being covered by the elevator 05, i.e. being closed. openings 98; 99 are also introduced in the area of the waste parts 09 at the points in the elevator 05 at which second openings 13 are formed, the first openings 12 in the area of the waste parts 09 being covered by the elevator 05, i.e. being closed.

When the first openings 12 have passed the tangent point A as a result of the rotation of the transport cylinder 03 or exactly at the tangent point A, the first air supply means 14 applies a negative pressure to the first openings 12, which presses the blanks 10 on the lateral surface of the transport cylinder 03 or on the elevator 05 fixed. As a result of the further rotation of the transport cylinder 03, the blanks 10 fixed by the vacuum and the waste parts 09 reach the tangent point B, which is formed between the transport cylinder 03 and the stripping cylinder 04. At the tangent point B, the raised areas of the elevator 05, which is arranged on the stripping cylinder 04, come into contact with the surfaces of the waste parts 09 and press the waste parts 09 into the depressions of the elevator 05 fixed on the transport cylinder 03. The residual webs that the waste parts 09 connect to the frame or to good parts 10, torn. The elevator 05 fixed on the stripping cylinder 04 has openings 98; 99, which correspond to the third openings 32 of the stripping cylinder 04. The openings 98; 99 are formed in the area of the dressing 05, in which the latter is not raised or interacts with the panel 10 in rolling contact. When the third openings 32 of the stripping cylinder 04 reach the tangent point B and are opposite a respective panel 10 at the tangent point B, a vacuum is applied to them. As a result of this negative pressure, a force is developed that lifts the blanks 10 off the surface of the transport cylinder 03 . The negative pressure at the third openings 32 of the stripping cylinder 04 is deactivated as soon as they have left the area of the tangent point B again or a few angular degrees, in particular 10 degrees, thereafter. Preferably, the negative pressure present at the first openings 12 is deactivated when the respective first openings 12 are in the area of the tangent point B. This ensures that the respective panel 10 is briefly lifted from the surface of the transport cylinder 03 under the effect of the negative pressure at the third openings 32 of the stripping cylinder 04, i.e. for a few angular degrees, in particular 10 degrees of the rotary movement of the transport cylinder 03. This measure additionally supports the separation of blanks 10 and waste parts 09, since these are actively moved in different directions, at least for a short time. Preferably at tangent point B, a negative pressure is applied via the second air supply means 15 to the second openings 13 in the area of the waste parts 09, which fixes the waste parts 09 to the lateral surface of the transport cylinder 03 or to the elevator 05. As an alternative to this, the negative pressure can also be applied via the second air supply means 15 to the second openings 13 in the area of the waste parts 09 at the target point A or immediately thereafter. When the respective blanks 10 reach the transfer point or transfer area C between the transport cylinder 03 and the transport belt 29, the first air supply means 14 are preferably deactivated. The negative pressure in the area of the first openings 12 is no longer present and the blanks 10 are no longer fixed and thus released. As a result of the negative pressure preferably applied to the conveyor belt 29, the blanks 10 are lifted from the transport cylinder 03 in the transfer point or transfer area C, fixed to the underside of the conveyor belt 29 and transported away hanging from it. The transfer of the benefits 10 from the transport cylinder 03 to the conveyor belt 29 can be supported by applying an overpressure to the first openings 12. The supply of the first openings 12 is preferably switched over from negative pressure to positive pressure when the first openings reach the transfer point or transfer area C in the area of the respective panel 10 . The blanks 10 can preferably be transported away with the additional conveyor belt 30 . For this purpose, the conveyor belt 29 conveys the blanks 10 to the further conveyor belt 30 and transfers the blanks 10 to the further conveyor belt 30. For the transfer, the negative pressure applied to the conveyor belt 29 is preferably deactivated, so that the blanks under the effect of gravity or by additional suction on the another conveyor belt 30 fixed on this and transported away by this. When the waste parts 09 reach the release point D, the negative pressure present at the second openings 13 in the region of the waste parts 09 is deactivated or, preferably, an overpressure is applied instead of the negative pressure. As a result, the waste parts 09 are released or the waste parts 09 are actively repelled, which can be picked up by a waste container. In the area of release point D, the front edge of the substrate sheet 01 is preferably also released by the gripper system 17 in addition to the waste parts 09.

Another mode of operation of an embodiment as preferably defined by the 11 or 12 . illustrated relates to whole-sheet processing or whole-sheet inspection and will be described below. The sheet transport cylinder transfers a processed substrate sheet 01 to the transport cylinder 03 at the tangent point A between the transport cylinder 03 and the sheet transport cylinder upstream. The sheet holding system of the sheet transport cylinder releases the processed substrate sheet 01, while the gripper system, in particular the suction gripper system 17 of the transport cylinder 03, holds the processed substrate sheet, in particular the cut substrate sheet 01 takes over. The substrate sheet 01 preferably comprises an edge and waste parts 09 and blanks 10 connected to it by so-called residual webs. The transport cylinder 03 carries an elevator 05. The elevator 05 has openings 98; 99. The openings 98; 99 are introduced at the points in the elevator 05 at which first and/or second openings 12, 13 are formed. When the first and/or second openings 12, 13 have passed the tangent point A or exactly at the tangent point A as a result of the rotation of the transport cylinder 03, the first and/or second air supply means 14, 15 at the first and/or second openings 12, 13, a negative pressure is applied, which fixes only the blanks 10 or only the waste parts 09 or the blanks 10 and the waste parts 09 on the lateral surface of the transport cylinder 03 or on the elevator 05. As a result of the further rotation of the transport cylinder 03, the blanks 10 and the waste parts 09 pass the tangent point B. The waste parts 09 or the blanks with other elements do not come into contact at the tangent point B. When the respective blanks 10 and the respective waste parts 09 reach the transfer point or transfer area C between the transport cylinder 03 and the transport belt 29, the first and/or second air supply means 14, 15 are preferably deactivated. The negative pressure in the area of the first and/or openings 12, 13 is no longer present and the blanks 10 and the waste parts 09 are no longer fixed and are thus released. The fixing of the front edges of the substrate sheets 01 by the gripper system 17 is also canceled at the transfer point or transfer area C. As a result of the negative pressure preferably applied to the conveyor belt 29, the blanks 10 and the waste parts 09 and the frames of the substrate sheets 01, including the front edges of the substrate sheets 01, which are still connected to one another by the remaining webs (complete sheets), are removed from the transport cylinder 03 at the transfer point or transfer area C lifted, fixed to the underside of the conveyor belt 29 and transported away from this hanging. The transfer of blanks 10 and waste parts 09 and the frames of substrate sheets 01, including the front edges of substrate sheets 01, as a whole sheet from transport cylinder 03 to transport belt 29 can be assisted by applying overpressure to the first and/or second openings 12, 13. The supply of the first and/or second openings 12, 13 is preferably switched over from negative pressure to positive pressure when the first and/or second openings 12, 13 reach the transfer point or transfer area C.

The complete sheets can preferably be transported away with the additional conveyor belt 30 . For this purpose, the conveyor belt 29 conveys the complete sheets to the further conveyor belt 30 and transfers the complete sheets to the further conveyor belt 30. For the transfer, the negative pressure applied to the conveyor belt 29 is preferably deactivated, so that the complete sheets are subjected to the effect of gravity or due to an additional suction effect on the further conveyor belt 30 are fixed on this and transported away from this.

According to another preferred embodiment with a stripping cylinder 04, a circulating conveyor belt 29 is assigned to the stripping cylinder, as shown in particular in FIG 13 is evident. The conveyor belt 29 is preferably arranged above the transport cylinder 03. The conveyor belt 29 is assigned to the stripping cylinder 04, preferably forming a transfer point 38 or transfer area. Next before The conveyor belt 29 is preferably arranged so that it wraps around part of the circumference of the stripping cylinder 04, forming an angle of wrap. The transfer point 38 or the transfer area is particularly preferably formed in the 8 o'clock position of the stripping cylinder 04 and the stripping cylinder 04 is assigned to the transport cylinder 03 in the 12 o'clock position of the transport cylinder 03. The extent of the conveyor belt 29 is determined by the arrangement of deflection rollers. The conveyor belt 29 preferably has a first transport area 39, which extends at least approximately tangentially to the stripping cylinder 04. More preferably, the first transport area 39 is inclined at an angle of between 30 and 60 degrees to the horizontal. The conveyor belt 29 preferably has a second transport area 40 which runs at least approximately horizontally, in particular exactly horizontally. In particular, the conveyor belt 29 is a suction belt and the first transport area 39 is an area in which suction air is present on the conveyor belt 29 . The conveyor belt 29 has the particular function of taking over processed substrate sheets 01, waste parts 09 or blanks 10 at the transfer point 38 or transfer area between the conveyor belt 29 and the stripping cylinder 04 from the stripping cylinder 04 and transporting them further. Another transport system can be connected to the conveyor belt 29 , for example in the form of a further conveyor belt 30 . An overlapping area is preferably formed between the conveyor belt 29 and the additional conveyor belt 30, in which functionally processed substrate sheets 01 or blanks 10 and/or waste parts 09 can be transferred from the conveyor belt 29 to the additional conveyor belt 30. It goes without saying that instead of the additional conveyor belt 30, another suitable transport system can also be embodied that accepts processed substrate sheets 01 or blanks 10 and/or waste parts 09 from the conveyor belt 29. In addition to the conveyor belt 29, another transport system 76 can also be attached directly to the transport cylinder 03, i. h, forming a transfer area or transfer point between the transport cylinder 03 and the further transport system 76 for processed substrate sheets 01 or blanks 10 and/or waste parts 09. This further transport system 76 is preferably designed as a sheet-guiding cylinder or sheet-guiding drum or chain conveyor system with gripper bridges or conveyor belt. The stripping cylinder 05 preferably has third openings 32 and third air supply means for supplying the third openings 32 with air. The third air supply means can preferably be switched between a suction air supply and a blown air supply. In particular, the third air supply means are designed to switch between suction air supply and blown air supply depending on the angular position of the third openings 32 supplied in each case. More preferably, the third air supply means are designed to switch the air supply of the third openings 32 from suction air supply to blowing air supply when the respective third openings 32 reach a third release point as a result of the stripping cylinder 04 rotating about its axis of rotation, in particular the transfer point or transfer area between stripping cylinder 04 and conveyor belt 29 The third openings 32 can be in the form of grooves or holes. The third air supply means preferably comprise a rotary slide or a rotary inlet, it being possible for the at least one rotary slide or the at least one rotary inlet to be formed on the end face of stripping cylinder 04. Like the transport cylinder 03, the stripping cylinder 04 preferably has means for fixing a replaceable packing 05. The means for fixing are preferably designed as clamping grippers. A respective dressing 05 can be fixed with them at the rear edge and at the front edge. The means for fixing the front edge of the dressing 05 are preferably formed by the front edge clamping element 22 and the further clamping element 24 interacting correlatively with this to form a clamping gap. The front edge clamping element 22 is mounted on the base body of the stripping cylinder 04 . The further clamping element 24 can in particular be formed as a leaf spring assembly. Adjacent to the further clamping element 24 is arranged a control element 25 preferably designed as a pneumatic muscle. The control element is preferably connected to an air supply, with which an overpressure can be applied to the control element 25 . The rear edge of the dressing 05 can be fixed between a rear edge clamping element 47 and a further rear edge clamping element 48, which together form a further clamping gap. The force required to close the trailing edge clamping gripper is applied by a rotatable tensioning shaft 50 which acts on the trailing edge clamping element 47 via a toggle lever 51 .

Further preferred details of the stripping cylinder 04 are in 10 and the associated description, to which reference is made in connection with the exemplary embodiment described. An elevator 05 with openings is preferably fixed on the stripping cylinder 04 . The openings in the lining 05 of the stripping cylinder 04 correspond to the third openings 32 of the stripping cylinder 04. The openings are preferably formed in the area of the lining 05, in which it is not raised and in rolling contact with the blanks 10 interacts. When the third openings 32 of the stripping cylinder 04 reach the tangent point B and face a respective panel 10 at the tangent point B, a vacuum is applied to them. As a result of this negative pressure, a force is developed that lifts the blanks 10 off the surface of the transport cylinder 03 .

A preferred mode of operation of an embodiment as preferably defined by the 13 illustrated can be described as follows. The sheet transport cylinder transfers a processed substrate sheet 01 to the transport cylinder 03 at the tangent point A between the transport cylinder 03 and the sheet transport cylinder upstream. The sheet holding system of the sheet transport cylinder releases the processed substrate sheet 01, while the gripper system, in particular the suction gripper system 17 of the transport cylinder 03, holds the processed substrate sheet, in particular the cut substrate sheet 01 takes over. The substrate sheet 01 preferably comprises an edge and waste parts 09 and blanks 10 connected to it by so-called residual webs. The transport cylinder 03 carries an elevator 05. The elevator 05 has openings 98; 99 and is provided at the points where it acts on benefit 10 with depressions. openings 98; 99 are preferably introduced on the one hand in the area of the panel 10 at the points in the elevator 05 at which first openings 12 are formed, with the second openings 13 in the area of the panel 10 being covered by the elevator 05, i.e. being closed. openings 98; 99 are preferably also introduced in the area of the waste parts 09 at the points in the elevator 05 at which second openings 13 are formed, the first openings 12 in the area of the waste parts 09 being covered by the elevator 05, i.e. being closed. When the first openings 12 have passed the tangent point A as a result of the rotation of the transport cylinder 03 or exactly at the tangent point A, the first air supply means 14 applies a negative pressure to the first openings 12, which presses the blanks 10 on the lateral surface of the transport cylinder 03 or on the elevator 05 fixed. As a result of the further rotation of the transport cylinder 03, the blanks 10 fixed by the vacuum and the waste parts 09 reach the tangent point B, which is formed between the transport cylinder 03 and the stripping cylinder 04. At the tangent point B, the raised areas of the elevator 05, which is arranged on the stripping cylinder 04, come into contact with the surfaces of the waste parts 09 and press the waste parts 09 into the depressions of the elevator 05 fixed on the transport cylinder 03. The residual webs that the waste parts 09 connect to the frame or to good parts 10, torn. The elevator 05 fixed on the stripping cylinder 04 has openings that correspond to the third openings 32 of the stripping cylinder 04 . The openings are preferably formed in the area of the dressing 05 in which the latter is not raised or interacts with the panel 10 in rolling contact. When the third openings 32 of the stripping cylinder 04 reach the tangent point B and are opposite a respective panel 10 at the tangent point B or directly in front of it, a vacuum is applied to them. As a result of this negative pressure, a force is developed that lifts the blanks 10 off the surface of the transport cylinder 03 . The negative pressure present at the first openings 12 of the transport cylinder 03 is preferably deactivated when the respective first openings 12 are in the area of the tangent point B. This ensures that the respective panel 10 is lifted off the surface of the transport cylinder 03 under the effect of the negative pressure at the third openings 32 of the stripping cylinder. The negative pressure applied to the second openings 13 is preferably maintained when the respective second openings 13 pass the tangent point B. As a result, the waste parts 09 are held on the surface of the transport cylinder 04 and transported past the tangent point B, while the blanks 10 are transferred at the tangent point B from the transport cylinder 03 to the stripping cylinder 04. As a result of its rotation, the stripping cylinder 04 transports the blanks 10 fixed by the vacuum further in the direction of the conveyor belt 29 until they reach the transfer point or transfer area E of the stripping cylinder 04 and the conveyor belt 29 . In the transfer point or transfer area E of the stripping cylinder 04 and the conveyor belt 29, a suction effect is preferably exerted on the side of the blank 10 facing away from the stripping cylinder 04 by the conveyor belt 29, which is preferably designed as a suction belt. In addition, when the respective third openings 32 reach the transfer point or transfer area E, the negative pressure applied to them is deactivated. An overpressure can preferably be built up at the third openings 32 following the deactivation of the underpressure. The respective blanks 10 are transferred from the stripping cylinder 04 to the conveyor belt 29 in the transfer point or transfer area E by the force effects described. The conveyor belt 29 runs on deflection rollers, at least one of which is driven, and transports the blanks 10 preferably to a stacking device or storage device, not shown. After the transfer point or transfer area E has been passed through the third openings 32, the negative pressure applied to them can be deactivated. The deactivation ends at the latest when the third openings 32 enter the tangent point B again. Preferably at the tangent point B, a negative pressure is applied via the second air supply means 15 to the second openings 13 in the area of the waste parts 09, which causes the waste parts 09 on the lateral surface of the trans port cylinder 03 or fixed to the elevator 05. As an alternative to this, the negative pressure can also be applied via the second air supply means 15 to the second openings 13 in the area of the waste parts 09 at the target point A or immediately thereafter. When the waste parts 09 reach the release point D, the negative pressure present at the second openings 13 in the region of the waste parts 09 is deactivated or, preferably, an overpressure is applied instead of the negative pressure.

As a result, the waste parts 09 are released or the waste parts 09 are actively repelled, which can be picked up by a waste container. In the area of release point D, the front edge of the substrate sheet 01 is preferably also released by the gripper system 17 in addition to the waste parts 09. Another mode of operation of an embodiment as preferably defined by the 13 . illustrated relates to whole-sheet processing or whole-sheet inspection and will be described below. The sheet transport cylinder transfers a processed substrate sheet 01 to the transport cylinder 03 at the tangent point A between the transport cylinder 03 and the sheet transport cylinder upstream. The sheet holding system of the sheet transport cylinder releases the processed substrate sheet 01, while the gripper system, in particular the suction gripper system 17 of the transport cylinder 03, holds the processed substrate sheet, in particular the cut substrate sheet 01 takes over. The substrate sheet 01 preferably comprises an edge and waste parts 09 and blanks 10 connected to it by so-called residual webs. The transport cylinder 03 carries an elevator 05. The elevator 05 has openings. The openings are introduced at the points in the elevator 05 at which the first and/or second openings 12, 13 are formed. When the first and/or second openings 12, 13 have passed the tangent point A or exactly at the tangent point A as a result of the rotation of the transport cylinder 03, the first and/or second air supply means 14, 15 at the first and/or second openings 12, 13, a negative pressure is applied, which fixes only the blanks 10 or only the waste parts 09 or the blanks 10 and the waste parts 09 on the lateral surface of the transport cylinder 03 or on the elevator 05. When the respective blanks 10 and the respective waste parts 09 reach the tangent point B as a result of the further rotation of the transport cylinder 03, the first and/or second air supply means 14, 15 are preferably deactivated. The negative pressure in the area of the first and/or openings 12, 13 is no longer present and the blanks 10 and the waste parts 09 are no longer fixed and are thus released. The fixing of the front edges of the substrate sheet 01 by the gripper system 17 is also canceled at the tangent point B. When the third openings 32 of the stripping cylinder 04 reach the tangent point B and are opposite a respective panel 10 at the tangent point B or directly in front of it, a vacuum is applied to them. As a result of this negative pressure, a force is developed that lifts the blanks 10 off the surface of the transport cylinder 03 . The negative pressure present at the first and/or second openings 12, 13 of the transport cylinder 03 is preferably deactivated when the respective first and/or second openings 12, 13 are in the area of the tangent point B. As a result of the negative pressure that is preferably present at the third openings 32, the blanks 10 and the waste parts 09 and the frames of the substrate sheets 01, including the front edges of the substrate sheets 01, which are still connected to one another by the remaining webs (complete sheets), are removed from the transport cylinder 03 at the tangent point B lifted and transferred to the stripping cylinder 04. The transfer of blanks 10 and waste parts 09 and the frames of substrate sheets 01, including the front edges of substrate sheets 01, as a whole sheet from transport cylinder 03 to stripping cylinder 04 can be assisted by applying overpressure to the first and/or second openings 12, 13. The supply of the first and/or second openings 12, 13 is preferably switched over from negative pressure to positive pressure when the first and/or second openings 12, 13 reach the tangent point B. As a result of its rotation, the stripping cylinder 04 transports the whole sheets fixed by the vacuum further in the direction of the conveyor belt 29 until they reach the transfer point or transfer area E of the stripping cylinder 04 and the transport belt 29. At the transfer point or transfer area E of stripping cylinder 04 and conveyor belt 29, a suction effect is preferably exerted on the side of the whole sheet facing away from stripping cylinder 04 by conveyor belt 29, which is preferably designed as a suction belt. In addition, when the respective third openings 32 reach the transfer point or transfer area E, the negative pressure applied to them is deactivated. An overpressure can preferably be built up at the third openings 32 following the deactivation of the underpressure. The full sheets are transferred from the stripping cylinder 04 to the conveyor belt 29 at the transfer point or transfer area E as a result of the force effects described. The conveyor belt 29 runs on deflection rollers, at least one of which is driven, and preferably transports the complete sheets to a stacking device or storage device, not shown. After the transfer point or transfer area E has been passed through the third openings 32, the negative pressure applied to them can be deactivated. The deactivation ends at the latest when the third openings 32 enter the tangent point B again.

According to another preferred embodiment, with or without a stripping cylinder 04, a peeling device 31 is assigned to the transport cylinder 03, as shown in particular in FIG 14 is evident. The peeling device 31 preferably has a contact surface that extends in the direction of a virtual tangent applied to the transport cylinder 03. The support surface can be aligned horizontally. The peeling device 31 is further preferably associated with a circulating conveyor belt 29, which can be designed as a suction belt circulating over deflection rollers. The peeling device 31 is preferably assigned to the transport cylinder 03 in its 12 o'clock position or viewed in the direction of rotation of the transport cylinder 03, directly adjacent to its 12 o'clock position. The conveyor belt 29 preferably has a transport area 37 which is horizontal or inclined at an angle of less than 10 degrees with respect to the horizontal. According to a preferred embodiment, the support surface formed on the peeling device 31 and the transport area 37 lie in one and the same virtual plane. More preferably, the support surface and the transport area 37 extend in the direction of a virtual tangent applied to the transport cylinder 03.

The transport cylinder 03 and the optional stripping cylinder 04 can be designed according to those embodiments of the transport cylinder 03 and stripping cylinder 04, as they are used in particular in connection with the objects according to FIG 9 until 13 have already been described.

The peeling device 31 has the particular function of lifting processed substrate sheets 01, waste parts 09 or blanks 10 with the aid of the peeling device 31 from the surface of the transport cylinder 03 or the surface of the elevator 05 assigned to it and feeding them to the conveyor belt 29, which transports them away.

Another transport system can be connected to the conveyor belt 29 , for example in the form of a further conveyor belt 30 . An overlapping area is preferably formed between the conveyor belt 29 and the additional conveyor belt 30, in which processed substrate sheets 01 or blanks 10 and/or waste parts 09 can be transferred from the conveyor belt 29 to the additional conveyor belt 30.

It goes without saying that, instead of the additional conveyor belt 30, another suitable transport system can also be embodied that accepts processed substrate sheets 01 or blanks 10 and/or waste parts 09 from the conveyor belt 29. Instead of the further conveyor belt 30, a container for receiving waste parts 09 can also be arranged under the conveyor belt 29. In addition to the conveyor belt 29, another transport system 76 can also be attached directly to the transport cylinder 03, i. h, forming a transfer area or transfer point between the transport cylinder 03 and the further transport system 76 for processed substrate sheets 01 or blanks 10 and/or waste parts 09. This further transport system 76 is preferably designed as a sheet-guiding cylinder or sheet-guiding drum or chain conveyor system with gripper bridges or conveyor belt.

The operation of an embodiment as preferably defined by the 14 illustrated can be described as follows. The illustrated embodiment of the device for treating substrates 01 is preferably part of a sheet-fed printing press. The sheet-fed printing press can include one or more printing units 06. More preferred are the in 14 . In the embodiment shown, two processing cylinders are arranged upstream, between which the substrate 01 can be inserted, with the substrate 01 being processed as it passes through tool parts from the group of cutting tools, punching tools, creasing tools and perforating tools that are active in the cylinder gap. One of the processing cylinders is in 14 . shown as a semicircle.

The processing cylinder is preferably designed as a sheet transport cylinder and has a sheet holding system. The sheet transport cylinder transfers a processed substrate sheet 01 to transport cylinder 03 at the tangent point A between transport cylinder 03 and the upstream sheet transport cylinder cut substrate sheet 01 takes over. The substrate sheet 01 preferably comprises an edge and waste parts 09 and blanks 10 connected to it by so-called residual webs. The transport cylinder 03 carries a packing 05. The packing 05 has openings and has indentations at the points at which it acts on the board 10 Mistake. On the one hand, openings are made in the area of the panel 10 at the points in the elevator 05 at which first openings 12 are formed, the second openings 13 in the area of the panel 10 being covered by the elevator 05, that is to say they are closed. On the other hand, openings are also made in the area of the waste parts 09 at the points in the elevator 05 at which second openings 13 are formed, the first openings 12 in the area of the waste parts 09 being covered by the elevator 05, i.e. closed are. When the first openings 12 have passed the tangent point A as a result of the rotation of the transport cylinder 03 or exactly at the tangent point A, the first air supply means 14 applies a negative pressure to the first openings 12, which presses the blanks 10 on the lateral surface of the transport cylinder 03 or on the elevator 05 fixed. As a result of the further rotation of the transport cylinder 03, the blanks 10 fixed by the vacuum and the waste parts 09 reach the tangent point B, which is formed between the transport cylinder 03 and the stripping cylinder 04. At the tangent point B, the raised areas of the elevator 05, which is arranged on the stripping cylinder 04, come into contact with the surfaces of the waste parts 0 and press the waste parts 09 into the depressions of the elevator 05 fixed on the transport cylinder 03. The residual webs that the waste parts 09 connect with the frame or with good parts (panel) 10, torn.

Preferably at tangent point B, a negative pressure is applied via the second air supply means 15 to the second openings 13 in the area of the waste parts 09, which fixes the waste parts 09 to the lateral surface of the transport cylinder 03 or to the elevator 05. As an alternative to this, the negative pressure can also be applied via the second air supply means 15 to the second openings 13 in the area of the waste parts 09 at the target point A or immediately thereafter. As a result of the rotation of the transport cylinder 03, the blanks 10 and the waste parts 09 are transported past the target point B until they finally reach the transfer point F between the transport cylinder 03 and the peeling device 31. Before the respective blanks 10 reach the transfer point F between the transport cylinder 03 and the peeling device 31, the first air supply means 14 of the transport cylinder 03 are switched over from a suction air supply to a blown air supply. The negative pressure in the area of the first openings 12 is reduced, so that the blanks 10 are no longer fixed and, to the extent that the positive pressure builds up at the first openings 12, are pushed off the surface of the transport cylinder 03 or its packing 05. As a result, at least the front edges of the blanks 10, viewed in the direction of rotation of the transport cylinder 03, protrude beyond the peeling device 31 in the radial direction of the transport cylinder 03. The peeling device 31 aims into the gap formed between the front edges of the blanks 10 and the surface of the transport cylinder 03 or its elevator 05. As a result of the rotation of the transport cylinder 03, the blanks 10 are pushed onto the support surface of the peeling device 31 until they enter the detection area of the conveyor belt 29, which causes the benefit 10 to be transported away. Unlike the first openings 12, the negative pressure applied to the second openings 13 is maintained by the second air supply means 15 when the second openings 13 pass the tangent point B until they reach the release point D. When the release point D is reached, the negative pressure present at the second openings 13 is deactivated. In a preferred embodiment, an overpressure can also be applied to the second openings 13 when the second openings 13 reach the area of the release point D. With the method steps mentioned, not only is the fixing of the waste parts 09 terminated when the release point D is reached, but the lifting of the waste parts 09 is preferably supported with pneumatic means in addition to the force of gravity. In the area of the release point D, the front edge of the substrate sheet 01 is preferably also released by the gripper system 17 in addition to the waste parts 09.

Another mode of operation of an embodiment as preferably defined by the 14 illustrated relates to whole-sheet processing or whole-sheet inspection and will be described below. The sheet transport cylinder transfers a processed substrate sheet 01 to transport cylinder 03 at the tangent point A between transport cylinder 03 and the upstream sheet transport cylinder cut substrate sheet 01 takes over. The substrate sheet 01 preferably comprises an edge and waste parts 09 and blanks 10 connected to it by so-called residual webs. The transport cylinder 03 carries an elevator 05. The elevator 05 has openings 98; 99 on. The openings 98; 99 are introduced at the points in the elevator 05 at which first and/or second openings 12, 13 are formed. When the first and/or second openings 12, 13 have passed the tangent point A or are located exactly at the tangent point A as a result of the rotation of the transport cylinder 03, the first and/or second air supply means 14, 15 at the first and/or second openings 12, 13, a negative pressure is applied, which fixes only the blanks 10 or only the waste parts 09 or the blanks 10 and the waste parts 09 on the lateral surface of the transport cylinder 03 or on the elevator 05. As a result of the further rotation of the transport cylinder 03, the blanks 10 and the waste parts 09 pass the tangent point B. The waste parts 09 or the blanks 10 do not come into contact with other elements at the tangent point B. The stripping cylinder 04 is separated from the transport cylinder 03. If the respective benefit 10 and the respective Waste parts 09 reach the transfer point F between the transport cylinder 03 and the detaching device 31, the first and/or second air supply means 14, 15 are deactivated or preferably switched to a blown air supply. The negative pressure in the area of the first and/or second openings 12, 13 is no longer present and the blanks 10 and the waste parts 09 and the frames of the substrate sheets 01, including the front edges of the substrate sheets 01, which are still connected to one another by the residual webs (full sheets ), are no longer fixed and are thus released at the transfer point F and preferably lifted off the surface of the transport cylinder 03 or the elevator 05 in a targeted manner. The fixing of the front edges of the substrate sheets 01 by the gripper system 17 is also canceled at the transfer point or transfer area C. As a result of the rotation of the transport cylinder 03, the whole sheets are then pushed over the support surface of the peeling device 31 until they reach the effective range of the transport belt 29, from which they are transported away.

The operation of an embodiment as preferably defined by the 15 illustrated can be described as follows. The sheet transport cylinder transfers a processed substrate sheet 01 to transport cylinder 03 at the tangent point A between transport cylinder 03 and the upstream sheet transport cylinder cut substrate sheet 01 takes over. The substrate sheet 01 preferably comprises an edge and waste parts 09 and blanks 10 connected to it by so-called residual webs. The transport cylinder 03 carries an elevator 05. The elevator 05 has openings 98; 99 and is provided at the points where it acts on benefit 10 with depressions. Perforations 98 are made in the area of the panel 10 at the points in the elevator 05 at which first openings 12 are formed, the second openings 13 in the area of the panel 10 being covered by the elevator 05, ie closed. On the other hand, openings 99 are also made in the area of the waste parts 09 at the points in the elevator 05 at which second openings 13 are formed, the first openings 12 in the area of the waste parts 09 being covered by the elevator 05, i.e. being closed. When the first openings 12 have passed the tangent point A as a result of the rotation of the transport cylinder 03 or are located exactly at the tangent point A, the first air supply means 14 applies a vacuum to the first openings 12, which causes the blanks 10 on the lateral surface of the transport cylinder 03 or fixed to elevator 05. As a result of the further rotation of the transport cylinder 03, the blanks 10 fixed by the vacuum and the waste parts 09 reach the tangent point B, which is formed between the transport cylinder 03 and the stripping cylinder 04. At the tangent point B, the raised areas of the elevator 05, which is arranged on the stripping cylinder 04, come into contact with the surfaces of the waste parts 09 and press the waste parts 09 into the depressions of the elevator 05 fixed on the transport cylinder 03. The residual webs that the waste parts 09 connect to the frame or to good parts 10, torn. The elevator 05 fixed on the stripping cylinder 04 has openings that correspond to the third openings 32 of the stripping cylinder 04 . The openings are formed in the area of the dressing 05, in which the latter is not raised or interacts with the panel 10 in rolling contact. When the third openings 32 of the stripping cylinder 04 reach the tangent point B and are opposite a respective panel 10 at the tangent point B, a vacuum is applied to them. As a result of this negative pressure, a force is developed that lifts the blanks 10 off the surface of the transport cylinder 03 . The negative pressure at the third openings 32 of the stripping cylinder 04 is deactivated as soon as they have left the area of the tangent point B again or a few angular degrees, in particular 10 degrees, thereafter. Preferably, the negative pressure present at the first openings 12 is deactivated when the respective first openings 12 are in the area of the tangent point B. This ensures that the respective panel 10 is briefly lifted from the surface of the transport cylinder 03 under the effect of the negative pressure at the third openings 32 of the stripping cylinder 04, i.e. for a few angular degrees, in particular 10 degrees of the rotary movement of the transport cylinder 03. This measure additionally supports the separation of blanks 10 and waste parts 09, since these are actively moved in different directions, at least for a short time. Preferably at tangent point B, a negative pressure is applied via the second air supply means 15 to the second openings 13 in the area of the waste parts 09, which fixes the waste parts 09 to the lateral surface of the transport cylinder 03 or to the elevator 05. As an alternative to this, the negative pressure can also be applied via the second air supply means 15 to the second openings 13 in the area of the waste parts 09 at the target point A or immediately thereafter. As a result of the rotation of the transport cylinder 03, the blanks 10 and the waste parts 09 are transported past the target point B until they finally reach the transfer point F between the transport cylinder 03 and the peeling device 31. Before the respective use 10 the transfer point F between the transport cylinder 03 and the Reach peeling device 31, the first air supply means 14 of the transport cylinder 03 are switched from a suction air supply to a blown air supply. The negative pressure in the area of the first openings 12 is reduced, so that the blanks 10 are no longer fixed and, to the extent that the positive pressure builds up at the first openings 12, are pushed off the surface of the transport cylinder 03 or its packing 05. As a result, at least the front edges of the blanks 10, viewed in the direction of rotation of the transport cylinder 03, protrude beyond the peeling device 31 in the radial direction of the transport cylinder 03. The peeling device 31 aims into the gap formed between the front edges of the blanks 10 and the surface of the transport cylinder 03 or its elevator 05. As a result of the rotation of the transport cylinder 03, the blanks 10 are pushed onto the support surface of the peeling device 31 until they are in the Get into the detection area of the conveyor belt 29, which causes the benefit 10 to be transported away. Unlike the first openings 12, the negative pressure applied to the second openings 13 is maintained by the second air supply means 15 when the second openings 13 pass the tangent point B until they reach the release point D. When the release point D is reached, the negative pressure present at the second openings 13 is deactivated. In a preferred embodiment, an overpressure can also be applied to the second openings 13 when the second openings 13 reach the area of the release point D. With the method steps mentioned, not only is the fixing of the waste parts 09 terminated when the release point D is reached, but the lifting of the waste parts 09 is preferably supported with pneumatic means in addition to the force of gravity. In the area of the release point D, the front edge of the substrate sheet 01 is preferably also released by the gripper system 17 in addition to the waste parts 09. Instead of the conveyor belt 29, another transport system 76 can also be attached directly to the transport cylinder 03, i. h, forming a transfer area or transfer point between the transport cylinder 03 and the further transport system 76 for processed substrate sheets 01 or blanks 10 and/or waste parts 09. This additional transport system 76 is preferably designed as a sheet-guiding cylinder or sheet-guiding drum or sheet-guiding system, in particular a chain conveyor system with gripper bridges, or a conveyor belt. An embodiment with a chain conveyor system with gripper bridges as part of the delivery of a sheet-fed printing press is in 17 shown. The chain conveyor system contains traction means which are moved via drive and deflection means and which drive gripping devices, in particular gripper bridges, for conveying the substrate. The gripping devices have fixing elements for taking over and fixing the sheet-like substrates 01. In particular, clamping and/or suction grippers can be used as fixing elements for gripping the edges of the substrate. In developments that are not shown, additional gripping devices are provided for the rear edges of the substrate. The sheet conveyor system designed here as a chain conveyor system contains chains that are laid over chain wheels and are driven by them and are guided in laterally arranged guide rails (not shown), on which gripper bridges for transporting the substrates 01 are arranged. The substrates 01 are conveyed by the gripper bridges in the direction of transport to the delivery stack, which is stored on, for example, a pallet or another type of transport base. The gripper bridges preferably contain leading edge clamping grippers which have gripper fingers which interact with gripper bridges and which are arranged at a distance from one another on a gripper shaft and can be controlled by the latter.

A substrate guide device and a dryer, for example, are provided in the sheet delivery to ensure that the substrates 01 held by the gripper bridges are transported safely. The substrate guide device has substrate guide plates facing the gripper bridges, which are provided with blast air nozzles and extend across the width of the machine. Blower boxes are arranged under the substrate guide plate, via which the blown air nozzles are supplied with blown air, so that a supporting air cushion is formed between the substrate guide plate and the substrates 01 transported by the gripper bridges. In order to be able to control heating of the substrate guide plate in the area of the dryer, a coolant circuit can be integrated. In order to prevent the substrates 01 from sticking together on the delivery pile, a release agent application device, not further described, is preferably provided in the area of the sheet delivery, in particular a powder device, preferably combined with a device for sucking off the powder.

In front of the delivery stack there is a braking device, not designated further, for decelerating the substrates 01 released by the gripper bridges. The braking device can contain rotating suction rings and/or circulating suction belts or can be designed as a follow-up gripper system. The substrates 01, decelerated by the braking device, come into contact with front stops and are placed in an aligned manner on the delivery stack. The delivery stack is preferably lowered by a stack lifting drive by the thickness of the deposited substrate, so that the surface of the stack always assumes an approximately constant level.

Another mode of operation of an embodiment, as preferably defined by the 17 illustrated will be described below. The substrates 01 to be processed lie as a stack of substrate sheets in feeder 07 and are separated from this stack of substrate sheets and fed one after the other either to one or more printing units 06 and printed in them or, if no printing units 06 are provided, fed directly to processing unit 46. The substrate sheets 01 are processed in processing unit 46. To do this, the substrate sheets 01 are inserted one after the other into a cylinder gap formed between two processing cylinders and punched in such a way that a stamped sheet (processed substrate sheet 01) is produced from each substrate sheet 01, which consists of at least one blank 10 and at least a waste part 09 and a frame enclosing it, the panel 10, waste part 09 and frame adhering to one another via material connections that have not been completely severed. The processing cylinders can be designed as tool-carrying punching cylinders or embodied by impression cylinders 74 and blanket cylinders 75 of a sheet-fed printing press. The substrate sheets 01 that have now been processed are preferably transferred to the transport cylinder 03 by a sheet transport cylinder at the tangent point A between the transport cylinder 03 and the upstream sheet transport cylinder. The sheet holding system of the sheet transport cylinder releases the processed substrate sheet 01, while the gripper system 17, in particular the suction gripper system 17, of the transport cylinder 03 takes over the processed, in particular cut, substrate sheet 01. The transport cylinder 03 preferably carries an elevator 05. The elevator 05 has openings 98; 99 on. The openings are introduced at the points in elevator 05 at which openings 12, 13, in particular first and/or second openings 12, 13, are formed. Preferably when the openings 12, 13 have passed the tangent point A as a result of the rotation of the transport cylinder 03 or are located exactly at the tangent point A, the first and/or second air supply means 14, 15 apply a negative pressure to the openings 12, 13, which Blank 10 or only the waste parts 09 or the blank 10 and the waste parts 09 are fixed to the lateral surface of the transport cylinder 03 or to the elevator 05. As a result of the further rotation of the transport cylinder 03, the waste parts 09, which are preferably fixed by the vacuum, reach the tangent point B, which is formed between the transport cylinder 03 and the stripping cylinder 04. At the tangent point B, the raised areas of the dressing 05, which is arranged on the stripping cylinder 04, come into contact with the surfaces of the waste parts 09 and press the waste parts 09 into the depressions of the dressing 05 fixed on the transport cylinder 03. The material connections that have not been completely severed, the connect the waste parts 09 to the frame or panel 10, separated, i.e. torn. It goes without saying that the raised areas of the dressing 05 can alternatively also be in the form of recessed areas. In this case, the corresponding areas of the stripping cylinder 04 are preferably raised. The decisive factor is that the raised or recessed areas on the transport cylinder 03 and on a stripping cylinder 04 assigned to it are designed in such a way that the material connections that are not completely severed are separated, i.e. torn. As a result of the rotation of the transport cylinder 03, the blanks 10 and the waste parts 09 are transported past the target point B until they finally reach the transfer point F between the transport cylinder 03 and the further transport system 76. At the transfer point F, the frames with the blanks 10 adhering to them exclusively via incompletely severed material connections are transferred to a stacker, in particular a delivery, more preferably a respective gripper bridge of the delivery, from which they are preferably transported to a stack carrier and stacked. When the waste parts 09 reach the transfer point F between the transport cylinder 03 and the further transport system 76, the first and/or second air supply means 14, 15 of the transport cylinder 03 maintain the supply of suction air to the first and/or second openings 12, 13. Only when the waste parts 09 reach the release point D is the supply of suction air to the first and/or second openings 12, 13 canceled or preferably switched to the supply of blown air, so that the waste parts 09 are released or preferably actively ejected. In connection with the separating processes between the transport cylinder 03 and the stripping cylinder 04, it has proven to be advantageous in preferred embodiments to only remove selected material connections that are not completely severed and to maintain others in a targeted manner in order to provide the necessary for the further transport of the frame and the panel 10 associated with it to maintain stability. Accordingly, it is preferably provided that between transport cylinder 03 and stripping cylinder 04, the incompletely severed material connections between the rear frame part in the transport direction of the frame and panel 10 are removed and the incompletely severed material connections between the front frame part in the transport direction of the frame and panel 10 are maintained. Furthermore, the incompletely severed material connections between the frame parts that are on the side in the transport direction of the frame and the panel 10 can also be eliminated. More preferably, the incompletely severed material connections between a plurality of blanks 10 are maintained between the transport cylinder 03 and the stripping cylinder 04. The method described above can in particular or using one of the described embodiments of the device for treating substrates 01, in particular using the in 17 illustrated and in relation to 17 described device are carried out. Another preferred embodiment is in particular in 16 shown and will be further described below. The embodiment includes a transport cylinder 03, which in its basic structure corresponds to that in FIG 2 illustrated transport cylinder 03 may correspond, so that hereby in particular 2 and the associated parts of the description and in addition to the 3 until 8th including associated parts of the description. A stripping cylinder 04 can be assigned to the transport cylinder 03, which in its basic structure corresponds to that in FIG 10 illustrated stripping cylinder 04 may correspond, so that hereby on the 10 and the associated parts of the description. The transport cylinder 03 and/or the stripping cylinder 04 preferably have means for fixing an exchangeable packing 05 in place. In the case of a preferred embodiment with a transport cylinder 03 without an associated stripping cylinder 04, the means for feeding the replaceable packing 05 are associated with the transport cylinder 03. In the case of a further preferred embodiment with a transport cylinder 03 with an associated stripping cylinder 04, the means for feeding the replaceable packing 05 are assigned to the transport cylinder 03 or the stripping cylinder 04 or both to the transport cylinder 03 and to the stripping cylinder 04. The means for feeding the interchangeable dressing 05, if they are assigned to the transport cylinder 03, comprise a pressing means 60 that can be selectively attached to and removed from the transport cylinder 03, in particular pivoted on and off, and if they are assigned to the stripping cylinder 04, a pressing means 60 that is attached to the stripping cylinder 04 pressing means 61 that can be selectively switched on and off, in particular that can be swiveled on and off. The pressing means 60, 61 is preferably designed as a roller or roller. The roller or roller can have an elastic surface, in particular a rubber surface. The roller or roller is rotatably mounted and can extend over the entire width of the respective cylinder (transport cylinder 03 or stripping cylinder 04) or only over part of its width. Likewise, the roller can be formed by a plurality of rollers which are aligned with one another with respect to their axis of rotation. The roll or roller is freely movable or, in a preferred embodiment, is motor-driven. More preferably, the roller or cylinder can also be assigned a motor that drives and/or brakes the roller or cylinder. A suitable braking device, for example in the form of a friction brake, can also be assigned to the roller. The roll or roller is preferably mounted on a displaceable pressure arm 62, 63, which is assigned a drive means 64, 65, preferably in the form of a linear drive 64, 65, more preferably in the form of a pneumatic cylinder 64, 65 or electric linear motor. The pressing arm 62, 63 can be pivoted about a pivot point. The means for feeding the interchangeable dressing 05 preferably comprise a guide roller 66, 67 and/or a guide rail 68, 69. More preferably, the at least one guide roller 66, 67 is assigned to a movably mounted guard 70, 71. The protection 70, 71 can be assigned a sensor that detects its position. The means for supplying the interchangeable elevator 05 can also include a store 72, 73 that is able to accommodate multiple elevators 05. The store 72, 73 is designed to store at least one elevator 05, while at least one other elevator 05 is arranged on the transport cylinder 03 or the stripping cylinder 04, with which the elevator 05 stored can be exchanged in alternation. The store 72, 73 is preferably able to accommodate a lift 05 that has been removed or is to be removed in addition to a lift 05 that is to be supplied. The store 72, 73 preferably has different storage locations for an elevator 05 to be fed in and an elevator 05 to be removed. The means for feeding the interchangeable dressing 05 can also have a device for pre-positioning, in particular positioning pins. The device for pre-positioning is preferably assigned to the memory 72, 73. To arrange a dressing 05 on the transport cylinder 03, the transport cylinder 03 is first rotated into a receiving position provided for receiving the dressing 05. The transport cylinder 03 can be rotated using an individual drive assigned to it or via a gear train which drives the transport cylinder 03 to other cylinders and into which a main drive drives. In the receiving position, the means for fixing the front edge of the interchangeable dressing 05 are at least approximately opposite the store 72. The lower edge of the elevator 05 to be fed (which corresponds to the front edge when it is fixed on the transport cylinder 03) stands on a store 72 designed as a rail 72, preferably an angle rail. According to a preferred embodiment, the store 72 has positioning means, for example in the form of positioning pins assigned to the positioning recesses in the elevator 05 correspond. If positioning pins are formed, the positioning recesses in the packing 05 are opposite the positioning pins and the packing 05 is pre-aligned by the assignment of the positioning recesses to the positioning pins. To feed the elevator 05, the lower edge of the elevator 05 is released from the rail 72 by the rail 72 motorized ver pivots or twists or the front edge of the elevator 05 is manually lifted off the rail 72. The guard 70, which is pivotably mounted and which preferably carries a guide roller 66 at the end, is pivoted manually or by motor, resulting in an access opening through which the elevator 05 can be fed to the means for fixing the elevator 05. As soon as the front edge of the elevator 05 has passed the access opening provided by the guard 70 and the guide roller 66, the guard 70 is pivoted back to its starting position manually or by a motor so that the guide roller 66 contacts the elevator 05 and thus the elevator 05 on its way is guided to the nip formed between the jaw 22 and the cuff 24. The elevator 05 is preferably fed in by the force of gravity or, alternatively, driven by a motor or manually. When the front edge of the dressing 05 has reached the clamping gap, the lever 21 is pivoted and the front edge of the dressing 05 is thus fixed between the clamping jaw 22 and the stop 24 . The transport cylinder 03 is then rotated counterclockwise by a motor. When the front edge of the dressing 05 has moved under the pressure roller 60 as a result of the rotation of the transport cylinder 03, the linear drive 64 is actuated. The linear drive 64 pivots the pressure lever 62 until the pressure roller 60 comes into contact with the elevator 05 and presses it against the lateral surface of the transport cylinder 03. Transport cylinder 03 is then rotated further in a counterclockwise direction by a motor, and in the process the packing 05 is pressed onto the outer surface of transport cylinder 03 in the area of influence of pressure roller 60 until the rear edge of packing 05 reaches the clamping gap formed between clamping jaw 47 and stop 48. When the rear edge of the packing 05 is inserted into the nip, the tensioning shaft 50 is rotated and the nip is thus closed. The pressure roller 60 is then pivoted away. If the elevator 05 is to be removed from the transport cylinder 03 again, the pressure roller 60 remains pivoted away from the transport cylinder 03. Either the leading edge or the trailing edge of the dressing 05 is released from the transport cylinder 03 and the transport cylinder 03 is then rotated, so that the dressing 05 is conveyed in the direction of the store 72 again. Finally, the edge of the elevator 05 that was still fixed up to that point is released.

The arrangement of a dressing 05 on the stripping cylinder 04 is comparable to the arrangement of a dressing 05 on the transport cylinder 03, so that reference is preferably made to this unless differences are expressly described. To arrange a dressing 05 on the stripping cylinder 04, the stripping cylinder 04 is first rotated into a receiving position provided for receiving the dressing 05. The breaking cylinder 04 can be rotated with the aid of an individual drive assigned to it or via a gear train which drives the breaking cylinder 04 with other cylinders and into which a main drive drives. The stripping cylinder 04 is preferably driven by an individual drive, whereas the transport cylinder 03 is driven via a gear train which drives the transport cylinder 03 to other cylinders and into which a main drive drives.

In the receiving position, the means for fixing the rear edge of the interchangeable dressing 05 are at least approximately opposite the store 73. The bottom edge of the elevator 05 to be fed (which corresponds to the rear edge when it is fixed on the stripping cylinder 04) stands on a store 73 comprising holding pins 71. According to a preferred embodiment, the holding pins are designed as positioning means in the form of positioning pins, which have positioning recesses in the Elevator 05 correspond. If positioning pins are formed, the positioning recesses in the packing 05 are opposite the positioning pins and the packing 05 is pre-aligned by the assignment of the positioning recesses to the positioning pins. To feed the dressing 05, the lower edge of the dressing 05 is released from the retaining pins 71 by the retaining pins 71 being retracted or the trailing edge being lifted off the retaining pins 71 manually. The pivotably mounted guard 71, which preferably carries a guide roller 67 at the end, is pivoted manually or by motor, resulting in an access opening through which the elevator 05 can be fed to the means for fixing the elevator 05.

As soon as the rear edge of elevator 05 has passed the access opening provided by guard 71 and guide roller 67, guard 71 is pivoted back to its initial position manually or by a motor, so that guide roller 67 contacts elevator 05 and thus elevator 05 on its way is guided to the nip formed between the jaw 22 and the cuff 24. The elevator 05 is preferably fed in by the force of gravity or, alternatively, driven by a motor or manually. When the rear edge of the dressing 05 has reached the clamping gap, the pneumatic muscle 25 is relaxed and the rear edge of the dressing 05 is thus fixed between the clamping jaw 22 and the impact 24. The stripping cylinder 04 is then rotated clockwise by a motor. When the rear edge of the packing 05 has moved under the pressure roller 61 as a result of the rotation of the stripping cylinder 04, the linear drive 65 is activated controls. The linear drive 65 pivots the pressure lever 63 until the pressure roller 61 comes into contact with the elevator 05 and presses it against the lateral surface of the stripping cylinder 04. The stripping cylinder 04 is then rotated further in a clockwise direction by a motor, and in the process the packing 05 is pressed onto the outer surface of the stripping cylinder 04 in the area of influence of the pressure roller 61 until the front edge of the packing 05 reaches the clamping gap formed between the clamping jaw 47 and the impact 48. When the front edge of the dressing 05 is inserted into the nip, the tensioning shaft 50 is rotated and the nip is thus closed. The pressure roller 61 is then pivoted away. If the elevator 05 is to be removed from the stripping cylinder 04 again, the pressure roller 61 remains pivoted away from the stripping cylinder 04. Either the front edge or the rear edge of the dressing 05 is released by the stripping cylinder 04 and the stripping cylinder 04 then rotates so that the dressing 05 is conveyed back in the direction of the store 71. Finally, the edge of the elevator 05 that was still fixed up to that point is released.

The at least one separating device 02 has a bridging element 77 arranged on the rotary inlet. The rotary inlet has a stator, in particular the disk 18, and a rotating component, in particular the transport cylinder 03, more preferably openings 58 in the transport cylinder 03. In particular, the at least one bridging element 77 is arranged on the stator, in particular on the disk 18 . The at least one bridging element 77 is arranged such that it projects into the recess 78 and/or the assembly opening 78 with an extension A78 that is larger than the diameter A78 of the cylinder journal 81 of the stripping cylinder 04. The at least one bridging element 77 is arranged such that it protrudes into the recess 78 for assembly and is arranged to increase the circumferential angle a18 of the air supply and/or the air discharge by an angle α77. In particular, the at least one bridging element 77 is arranged to widen the surface and/or a circumferential angle a18 of the air supply and/or air discharge.

In particular, due to the recess 78 for assembly, the disc 18 does not have a complete circular cross section. As a result, a contact surface and/or a contact area of the air supply and/or air discharge into the transport cylinder 03 is reduced. In a fixed angular position of a transport cylinder 03, this results in the circumferential angle a18 in which air can be supplied to and/or discharged from the transport cylinder 03 and/or is discharged and/or supplied. In particular, there are therefore areas on the at least one transport cylinder 03 to which no air can and/or is removed. Depending on the size of the cylinder pin 81 and in particular depending on the recess for mounting 78, a circumferential angle a18, with which the transport cylinder 03 is subjected to air, can and/or can vary. Circumferential angle a18 means, in particular, angle a18 when looking at the round cross section of the at least one transport cylinder 03. The circumferential angle a18 is denoted by a18 since it corresponds to an extent and/or an angle of the disc 18 . Due to the circular shape, the circumference of the cross section of the transport cylinder 03 has a circumferential angle of 360° (degrees). Due to the recess and/or assembly opening 78, the full circumferential angle cannot be subjected to blowing and/or suction air. In particular, the at least one of the circumferential angles a1 of the air supply and/or air discharge through the at least one recess for mounting 78 is less than 360° (degrees). For example, as a result, only 200° to 300° or less can be subjected to an air supply and/or an air discharge. For example, suction air is applied over 120° to 220° of the circumferential angle a18 of the transport cylinder 03 and blown air is applied over 10° to 50° of the transport cylinder 03 in a fixed angular position. In particular, the part of the circumferential angle a18 over which the blown air, preferably applied to the waste parts 09, is too small, depending on the design. In particular, the section and/or part of the circumferential angle a18 over which the blown air is applied can be enlarged in this way.

The at least one bridging element 77 allows the circumferential angle a18 to be increased by an expansion angle a77. The at least one bridging element 78 is arranged to increase the circumferential angle a18 with the widening angle a77 by at least 20°, more preferably by 40°. In a further preferred embodiment, the angle a18 is increased to the maximum, namely 360°. In this preferred case, the widening angle a77 of the at least one bridging element 78 is arranged to completely compensate for the reduction in the circumferential angle a1 due to the recess for mounting 78 of the air and/or air discharge. The circumferential angle a18 is preferably increased by 30° by the widening angle a77.

In particular, due to the circumferential angle a18 increased by the expansion angle a77, for example despite the design, in particular the design with a small radius, of the disc 18, in particular the stator of the rotary inlet, a sufficient supply of air, in particular suction and/or blown air, of the transport cylinder 03 be guaranteed. In particular, for example, a waste part 09 can be blown off and/or a blank 10 can be sucked in via a increased circumference on the surface of the cylinder barrel. A diameter A18 of the at least one disk 18 is preferably significantly smaller, preferably at least 20% smaller, more preferably 30% smaller than a diameter A3 of the at least one transport cylinder 03. The same applies to the greatest distance between the openings 58 of the rotating part of the rotary inlet . In particular, a smaller design of the rotary union results in smaller velocities between two relatively moving parts of the stator and the rotor. Therefore, in particular, the smallest possible design of the disk 18 is desirable.

The at least one bridging element 77 is arranged to extend one of the recesses 19, 56, 57, for example. In particular, the at least one bridging element 77 itself has at least one, preferably several, recesses 79 designed as an air duct. The at least one recess 79 can be acted upon by at least one air supply connector 80 with suction air and/or blown air. The at least one, preferably several, recesses 79, like the recesses 19, 56, 57, are arranged coaxially to the axis of rotation 16 of the at least one transport cylinder 03. In particular, the at least one recess 79 forms a further section of the plurality of sections of the at least one of the recesses 19, 56, 57. The at least one bridging element 77 is preferably arranged on a torque support 20 and/or anti-rotation device 20. In particular, the at least one disk 18 is secured against twisting by means of the at least one torque support 20 . The at least one torque support 20 includes a coupling rod. For example, the at least one disk 18 can be rotated and fixed via the torque arm 20 .

In one method, air is supplied to and/or removed from the substrate. The at least one separating device 02 separates at least one piece of waste 09 and at least one blank 10. The at least one rotary inlet feeds blown air to and/or extracts suction air from the at least one transport cylinder 03 via at least one end face, in particular both end faces. In a fixed angular position of the transport cylinder 03, air is supplied and/or discharged to at least part of the circumference of the transport cylinder 03 with a circumferential angle a18 through the rotary inlet, in particular the disk 18. The circumferential angle a18 of the air supply and/or air discharge is smaller than 360° due to at least one recess for mounting 78 on the rotary inlet. At least one bridging element 77 protrudes into the mounting recess 78 and increases the circumferential angle a18 of the air supply and/or the air discharge by an angle α77.

The rotary inlet is mounted in particular with the transport cylinder 03 installed. In particular, the disc 18 of the rotary inlet is placed on the cylinder pin 81 through the recess 78 for assembly and is fixed in position by means of the torque support 20, in particular the anti-rotation device. The at least one bridging element 77 is preferably arranged on the torque arm 20 . The bridging element 77 therefore at least partially encloses the recess 78 for assembly and protrudes into it. The at least one bridging element 78 is acted upon by suction air and/or blown air and/or air is supplied and/or removed by means of at least one, in particular additional, supply connection piece 80 . The at least one bridging element 78 increases the circumferential angle a18 with the widening angle a77 by at least 20°, more preferably by at least 40°. More preferably, the widening angle a77 of the at least one bridging element 78 completely compensates for the reduction in the circumferential angle a18 through the installation opening 78 of the air and/or air discharge. The at least one bridging element 78 has at least one recess 79 embodied as an air duct 79 . The at least one recess 79 designed as an air duct extends at least one recess 19, 56, 57 coaxially to the axis of rotation 16 of a transport cylinder 03 of the rotary inlet.

In a preferred embodiment, the at least one bridging element is subjected to blowing air. In particular, a piece of waste 09 is thereby blown away from the transport cylinder 02. At least the central recess 56 of the bridging element 77 is preferably widened and/or lengthened. It can also be the case that the at least one bridging element has further recesses that are not subjected to air. In particular, this is intended to control and/or reduce friction. For example, the at least one bridging element 77 has pressing elements 82 embodied as spring elements, in particular as a spherical index. In particular, these ensure that the torque support 20 is pressed against and that there is little friction, for example through a special coating.

If it is designed as a matrix, the lining 05 is preferably constructed in at least two layers. The elevator 05 has indentations 92, some of which are designed to suck in blanks 10 or holding webs 102 and some of which are designed to suck in waste parts 09. Elevator 05 therefore preferably consists of at least one carrier plate 90 and one mounting plate 91. The at least one carrier plate 90 can have openings 98; 99 and/or suction openings 98; 99 have. are preferred the suction ports 98; 99 in operative connection with the first opening 12 and/or the second opening 13. The at least one carrier plate 90 is preferably arranged directly on the lateral surface of the transport cylinder 03.

In particular, the dressing 05 is matched to the sheet 01 to be processed. i.e. Elevator 05 has suction chambers 93 for sucking up blanks 10 and holding webs 102 to maintain the stability of the sheet, as well as suction chambers 97 for sucking up waste parts 09. The waste parts 09, in particular internal waste parts, and the blanks 10 are preferably finally separated in the separating device 02. i.e. the waste parts 09 and benefits 10 connected by perforations are separated. For this purpose, the areas of the elevator 05 designed for the waste parts 09 have at least two levels. The two planes differ in that they are at different distances from the transport cylinder 03 in the radial direction. During the process of separating waste parts 09 and blanks 10, at least the waste parts 09 are transferred or pressed into the lower level. As already described in the embodiments, this is done either by a stripping cylinder 04 designed as a male die and/or by suction air. Suction chambers 93 for sucking in the blanks 10 and preferably also the holding webs 102 as well as suction chambers 97 for sucking in the waste parts 09 are preferably present in the elevator 05 .

Each suction chamber 93 for sucking in the panel 10 preferably has at least one opening 98 or at least one suction opening 98 . The at least one suction opening 98 is preferably connected to the first opening 12 and/or to the second opening 13 or is an opening to one of the openings 12; 13. Each sow chamber 93 preferably has a suction surface 94. The at least one suction surface 93 is to be regarded in particular as a recess in the lateral surface of elevator 05 and exerts a suction force on panel 10 during operation. In particular, suction surface 93 forms the contact surface and/or active surface of suction chamber 93 with respect to the respective panel 10. In particular, the suction surface is 93 is preferably designed to be smaller than the respective panel 10 . This ensures that the blank 10 remains arranged on the outer level of the elevator 05. In order to ensure this even with thin materials, webs can also be arranged in the suction chambers 93 . These webs are preferably arranged in such a way that the outermost extent is in the outer plane of the dressing 05. These ridges can have different shapes and aim to keep the panels 09 extra stable. In particular, the area of the suction surfaces 94 is reduced in this way. A suction power is still maintained.

The at least one suction surface 94 can have different shapes. For example, the suction surface 94 has a round, oval or elliptical cross-sectional shape. The narrowed area 95 is then arranged at the front in the direction of rotation. This is preferably designed to narrow along the direction of rotation. More preferably, the at least one suction surface 94 is designed with a triangular cross section. In particular, the narrowed area 95 is arranged directly adjacent to the suction surface 94 in this embodiment. In particular, the narrowed area 95 starts in the front third of the suction surface 94 as seen in the direction of rotation of the transport cylinder 03.

The suction chambers 97 for sucking in the waste parts 09 also have suction surfaces 101 . The suction surfaces 101 are preferably arranged in the lower level or the carrier plate 90 of the elevator 05. In particular, the suction surface 97 forms the contact surface and/or active surface of the suction chamber 93 with the respective waste part 09. If the waste parts 09 are pressed into the lower level during operation by the stripping cylinder 04 and/or directly by the suction air and are held there by the suction surface 97. In particular, the waste parts 09 are held on the transport cylinder 03 longer than the blanks 10, so that they can be collected in a garbage container, for example. The suction surface 101 for sucking in the waste parts 09 preferably corresponds exactly to the cross-sectional area of the suction openings 99. The suction surface 101 for sucking in the waste parts 09 is preferably larger than the extent of the waste parts 09. The suction openings 99 are preferably also provided with one of the openings 12; 13 related. The waste parts 09 are thus held directly on the suction openings 99 and, when sucked in, are located one level below the panel 10 or the holding webs 102. In particular, this design allows waste parts 09 to remain in the lower level and the panels 10 can simultaneously be in remain arranged on the level above.

The suction openings 98 for sucking in the blanks 10 and the suction openings 99 for sucking in the waste parts 09 are preferably each with one of the openings 12; 13 in operative connection. The suction openings 98; 99 are in particular breakthroughs 98; 99 in the carrier plate 90 of the elevator 05. The blanks 10 and the waste parts 09 can thus be held on the elevator 05 for different lengths of time. With a high proportion of waste parts 09 in the substrate 02, however, it can be advantageous to have waste parts 09 and blanks 10 with the same openings 12; 13 to apply suction air. However, so that only the benefits 10 are transferred during the transfer to the subsequent unit, these must be easily removed from the suction surfaces despite the application of suction air chen 97 withdrawable. In addition, the waste parts 09 still have to be subjected to suction air. When a panel 10 is lifted, the negative pressure in the suction chamber 93 collapses. Now, if both types of suction chambers 93; 97 with the same opening 12; 13 are connected, the suction force for sucking up the waste parts 09 can also drop in the suction chambers 97 . To have an effect on other suction chambers 93; To keep 97 small, the suction chamber 93 for sucking in the panel 10 has a suction opening 98 with a cross-sectional area that is small in relation to the suction surface 94 . A ratio of the suction surface 94 to the cross-sectional area of the respective suction opening 98 is preferably at least three, more preferably at least four, more preferably at least five and less than twenty, more preferably less than ten.

The at least one suction opening 98 preferably has a suction cross section which is at least three in relation to the ratio of the at least one suction surface 94 to the suction cross section of the at least one suction opening 98.

The at least one suction surface 94 preferably has at least one, preferably narrowed, area 94, in particular for easy lifting of the blanks 10. The at least one region 94 extends in a transverse direction A and/or has a width that decreases in the direction of rotation of the transport cylinder 03. Transverse direction A is preferably a direction that is aligned parallel to the width of the machine and/or parallel to the axis of transport cylinder 03. In particular, the at least one region 95 of the suction surface 94 is configured such that its extension in the transverse direction A tapers to a point in the direction of rotation of the transport cylinder 03 and/or forms a peak in the direction of rotation. In particular, the remainder of the suction surface 94 preferably has a greater extent in the transverse direction A and ensures that the blanks 10 are held. The tapering area 95, which is arranged at the front of the suction surface 94 in the direction of rotation, ensures that the panels 10 in the front area 95 of the suction surface 94 in the direction of rotation are subjected to a lower suction force and can therefore be detached more easily from the suction surface 94 are. The area 95 particularly preferably has a tip at which only a point force acts on the respective panel 10 or the respective holding web 102 . In particular, the force acting on panel 10 changes from a surface force to a point force. In a further preferred embodiment, the front area 95 is designed only approximately as a point. This embodiment also causes the blank 10 to be lifted off more easily. This is due to the fact that when the blank 10 is lifted, the suction force in the suction chamber 93 collapses and the blank 10 can then be lifted up easily. In particular, the respective blank 10 is sucked in in the transverse direction A with a smaller extent of the suction surface 94 in the transverse direction A in relation to its width and/or extent. Preferably, the suction faces 94 are formed with different cross sections, and preferably, the narrowed portion 95 is located at the front of the respective suction faces 94 in the direction of rotation. In particular, the respective blank 10 is sucked in in the transverse direction A with a smaller extent of the suction surface 94 in the transverse direction A in relation to its width and/or extent.

The at least one, preferably narrowed, area 95 more preferably has, at least on average, a smaller, at least 20%, more preferably 30% smaller, extent in the transverse direction A than the remaining part of the suction surface 94. In doing so, the average of the expansion is preferably considered over the remaining suction surface 94 in comparison to the narrowed region 95 .

The suction surface 94 preferably has a ratio to the surface of the respective panel 10 of at least 0.3, more preferably at least 0.5, even more preferably 0.7. In particular, there is a high suction power with a comparatively low negative pressure.

The blanks 10 and/or substrate sheets 01 are preferably passed on to a downstream unit in a process. If the blanks 10 and/or holding webs 102 are subjected to suction air on the transport cylinder 03 through the suction openings 98 . The waste parts 09 are also acted upon by suction air through the suction openings 99 . In the plane above, the mounting plate 91 is the suction chamber 97 and acts via the suction opening 99 for sucking the waste parts 09 a suction force on the waste parts. Because the suction chamber 97 has a larger cross section than the waste parts 09, they can be sucked into the suction chamber 97 and are located on a lower level than the blanks 10 or the holding webs 102. When they are transferred to the downstream unit, the waste parts remain in of the suction chambers 97 and are thus separated from the benefit 10 or the holding webs 102. After the separation of benefit 10 and waste parts 09, the suction air is stopped and blown air is applied and the waste parts are removed in this way. The narrowed or tapering area 95 makes it easier to lift off the panel 10 and the holding webs 102 .

In particular, the extent of the at least one region 95 in transverse direction A decreases along the direction of rotation of transport cylinder 03 and preferably tapers to a point expansion, too. This area is further forward in the direction of rotation compared to the rest of the suction surface. In particular, the average extent of the at least one area 95 in the transverse direction A is reduced in comparison to the average extent in the transverse direction A of the remaining suction surface 94 . The average extent of the at least one region 95 in the transverse direction A is reduced by at least 20% compared to the average extent in the transverse direction A of the remaining suction surface 94.

Reference List

01

substrate, substrate sheet

02

separator

03

transport cylinder

04

transport cylinder

05

Elevator

06

printing unit

07

investor

08

acceleration system

09

waste part

10

Use

11

feed direction

12

opening, first

13

opening, second

14

Air supply means, first

15

air supply means, second

16

axis of rotation

17

Gripper system, suction gripper system

18

disc

19

recess

20

torque arm

21

lever

22

Clamping element leading edge, clamping jaw

23

Energy accumulator, spring

24

Clamping element front edge, cuff, more

25

actuator, pneumatic muscle

26

Gear means, lever

27

positioning pin

28

Adjusting means suction area

29

conveyor belt

30

conveyor belt, more

31

peeling device

32

opening, third

33

lever, another

34

pivot point

35

Bullet

36

tangent point

37

Transport area, horizontal

38

transfer points

39

Transport area, first

40

Transport area, second

41

pressure cylinder

42

Transfer drum, sheet guiding cylinder

43

blanket cylinder

44

plate cylinder

45

inking

46

processing plant

47

Rear edge clamping element, clamping jaw

48

Clamping element trailing edge, further, impact

49

Sleds

50

expansion shaft

51

knee lever

52

Control element, further, pneumatic muscle

53

Feeding port, first

54

Feeding port, second

55

Feeding port, third

56

recess

57

recess

58

opening

59

channel cover

60

pressing means, pressure roller

61

pressing means, pressure roller

62

pressure arm, pressure lever

63

pressure arm, pressure lever

64

Linear drive, pneumatic cylinder

65

Linear drive, pneumatic cylinder

66

leadership role

67

leadership role

68

guide rail

69

guide rail

70

Protection

71

Protection

72

Storage

73

Storage

74

pressure cylinder

75

blanket cylinder

76

transport system, more

77

bridging element

78

Recess, mounting hole

79

Recess (77), air duct

80

Air supply nozzle, further

81

cylinder pin

82

pressing element

83

-

84

actuator

85

-

86

-

87

-

88

-

89

-

90

support plate (05)

91

Build-up plate, die (05)

92

deepening

93

Suction chamber for sucking up panels (10)

94

suction surface (10)

95

Area (94), constricted area

96

-

97

Suction chamber for sucking up the waste parts (9)

98

breakthrough, suction opening (93)

99

breakthrough, suction opening (97)

100

-

101

suction surface (97)

102

piers

A

Tangent point transport cylinder and upstream sheet transport cylinder

B

Tangent point transport cylinder and stripping cylinder

C

Transfer point or transfer area Transport cylinder and conveyor belt

D

release point

E

Transfer point or transfer area Stripping cylinder and conveyor belt

f

Transfer point transport cylinder and further transport system

A03

diameter (03)

A18

diameter (18)

A78

Distance (78)

A81

diameter (81)

α18

Angle, rotary entry

α77

expansion angle

Claims (21)

Processing machine with at least one separating device (02), wherein the at least one separating device (02) is arranged to separate a substrate (01) at least one panel (10) at least in the waste part (09), wherein the at least one separating device (02) has at least one transport cylinder (03), wherein at least one rotary inlet is arranged to supply and/or remove air to the at least one transport cylinder (03) via at least one end face, a lift (05) being arranged clamped on the transport cylinder (03), the lift (05 ) has indentations (92), at least some of the indentations (92) being designed as suction chambers (93) for sucking up the blanks (10), the suction chambers (93) for sucking up the blanks (10) each having at least one suction surface (94 ) and wherein the at least one suction surface (94) has at least one region (95) whose extent in the transverse direction (A) is smaller than the extent of the remaining suction surface (94) in the transverse direction (A), characterized in that the extension in the transverse direction (A) of the at least one region (95) of the suction surface (94) tapers along the direction of rotation and that the front region (95) is only approximately as Tip is formed or is formed as a tip. processing machine claim 1 , characterized in that the extent of the at least one region (95) in the transverse direction (A) decreases along the direction of rotation of the transport cylinder (03). processing machine claim 1 or 2 , characterized in that the at least one area (95) is arranged further forward in the direction of rotation compared to the rest of the suction surface. processing post claim 1 or 2 or 3 , characterized in that the expansion in Transverse direction (A) of the at least one region (95) of the suction surface (94) along the direction of rotation in a point extension. processing machine claim 1 or 2 or 3 or 4 , characterized in that the average extent of the at least one region (95) in the transverse direction (A) is smaller than the average extent in the transverse direction (A) of the remaining suction surface (94). processing machine claim 1 or 2 or 3 or 4 or 5 , characterized in that the average extent of the at least one region (95) in the transverse direction (A) is reduced by at least 20% compared to the average extent in the transverse direction (A) of the remaining suction surface (94). processing machine claim 1 or 2 or 3 or 4 or 5 or 6 , characterized in that the at least one area (95) has a respective panel (10) in relation to its width and/or extent in the transverse direction (A) with a smaller extent compared to the remaining suction surface (94) in the transverse direction (A) is arranged sucking. processing machine claim 1 or 2 or 3 or 4 or 5 or 6 or 7 , characterized in that the at least one suction chamber (93) for sucking in the panel (10) is acted upon by at least one suction opening (98) with at least negative pressure. processing machine claim 8 , characterized in that the at least one suction opening (98) has a suction cross section. processing machines claim 9 , characterized in that a ratio of the at least one suction surface (94) to the suction cross section of the at least one suction opening (98) is at least three. processing machine claim 1 or 2 or 3 or 4 or 5 or 6 or 7 or 8th or 9 or 10 , characterized in that at least some suction surfaces (94) have webs for supporting the panels (10). Method for treating substrate (01) with at least one separating device (02) of a processing machine, wherein the at least one separating device (02) separates a substrate (01) into at least one waste part (09) and at least one panel (10), wherein the at least a separating device (02) has at least one transport cylinder (03), with at least one rotary inlet supplying and/or removing air to the at least one transport cylinder (03) via at least one end face, with a lift (05) being clamped on the transport cylinder (03), wherein the dressing (05) has depressions (92), at least some of the depressions (92) being designed as suction chambers (93) for sucking up the blanks (10), the suction chambers (93) holding at least one blank via suction surfaces (94). (10) suck and wherein the suction surface (94) has at least one region (95) along the direction of rotation, in which the respective benefit (10) in relation to its width and / or extent in the Querri direction (A) with a smaller extent of the suction surface (94) in the transverse direction (A), characterized in that the extent in the transverse direction (A) of the at least one region (95) of the suction surface (94) tapers along the direction of rotation and that the front area (95) is only approximately designed as a tip or is designed as a tip. procedure after claim 12 , characterized in that the extent of the at least one region (95) in the transverse direction (A) decreases along the direction of rotation of the transport cylinder (03). procedure after claim 12 or 13 , characterized in that the at least one area (95) is arranged further forward in the direction of rotation compared to the rest of the suction surface. procedure after claim 12 or 13 or 14 , characterized in that the extent in the transverse direction (A) of the at least one region (95) of the suction surface (94) tapers into a point extent along the direction of rotation. procedure after claim 12 or 13 or 14 or 15 , characterized in that the average extent of the at least one region (95) in the transverse direction (A) is smaller than the average extent in the transverse direction (A) of the remaining suction surface (94). procedure after claim 12 or 13 or 14 or 15 or 16 , characterized in that the average extension of the at least one area (95) in the transverse direction (A) is smaller than the average extension in the transverse direction (A) of the remaining suction surface (94) by at least 20%. procedure after claim 12 or 13 or 14 or 15 or 16 or 17 , characterized in that the at least one suction chamber (93) for sucking in the panel (10) is acted upon by at least one suction opening (98) with at least negative pressure. procedure after claim 12 or 13 or 14 or 15 or 16 or 17 or 18 , characterized in that the at least one suction opening (98) has a suction cross section. procedure after claim 12 or 13 or 14 or 15 or 16 or 17 or 18 or 19 , characterized in that a ratio of the at least one suction surface (94) to the suction cross section of the at least one suction opening (98) is at least three. procedure after claim 12 or 13 or 14 or 15 or 16 or 17 or 18 or 19 or 20 , characterized in that at least some suction surfaces (94) have webs for supporting the panels (10).

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