DE102015223099B4 - Device for treating substrates - Google Patents

Abstract

Device for treating substrates (1) with a separating device (2) with which the processed substrate (1) can be separated into at least one waste part (9) and at least one blank (10), the separating device (2) having a transport cylinder (3) and the transport cylinder (3) comprises means for fixing an interchangeable dressing (5), which are designed as clamping grippers and have openings (12, 13) which, when the dressing (5) is fixed, are at least partially covered by openings that can be formed in the dressing (5). , wherein air supply means (14, 15) are provided for supplying the openings (12, 13) with air, the transport cylinder (3) has a suction gripper system (17) for fixing the front edges of the sheet-like substrate (1) and the transport cylinder (3) has a A peeling device (31) and a conveyor belt (29) is assigned to the peeling device (31), the peeling device (31) having a bearing surface which extends in the direction of a virtual tangent applied to the transport cylinder (3), and the conveyor belt (29) has a transport area (37) extending in the direction of the virtual tangent applied to the transport cylinder (3).

Description

The invention relates to a device for treating substrates with a separating device with which the processed substrate can be separated into at least one waste part and at least one blank. In particular, arcuate substrates are understood to be substrates that are preferably printable or printed. Such substrates are processed by one or more processing operations, such as, for example, by printing and/or coating and/or varnishing and/or cutting and/or punching and/or embossing and/or grooving and/or perforating.

From the DE 103 56 405 A1 is a device for finishing processing, e.g. B. cutting, punching, embossing, foil transfer, and / or coating, of printed paper, cardboard, cardboard packaging, corrugated cardboard, plastics by means of a rotation process is known, in which the substrate can be inserted in the feed direction between a rotating counter-pressure processing roller and a rotating processing roller and undergoes processing when passing through tool parts that are effective in the working gap. Directly downstream of the processing roller is a delivery conveyor belt for shape-free substrates, which is aligned approximately horizontally. The device is designed exclusively for processing web-shaped substrates.

From the DE 103 56 413 A1 is a device for the finishing processing of printed paper or similar web-shaped substrates by means of a rotation process in which the substrate can be inserted in the feed direction between a rotating counter-pressure processing roller and a rotating processing roller and is processed as it passes through tool parts that are active in the working gap. The counter-pressure processing roller is arranged essentially next to a processing roller and a delivery conveyor belt for shape-free substrates, which is aligned approximately horizontally, is arranged directly downstream of the processing roller. The processing roller is double-sized and has grippers. The guidance of the substrates on the lateral surface of the processing roller, in the areas spaced apart from the gripper, cannot be variably adjusted to different substrate formats.

The DE 20 2004 018 764 U1 discloses a device for finishing processing of printed and / or coated sheet-like substrates, in particular for z. B. Punching by means of a rotary process, in which the substrate can be inserted between two rotating processing rollers in the feed direction and undergoes processing as it passes through tool parts that are active in the working gap, with one processing roller being provided with at least one gripper for transporting the sheet-like substrate in correct register and one gripper -Pad or a gripper anvil is designed as a hanging cam for the tool part formed as a tool sheet.
The device is designed exclusively for the use of sheet metal tools that have recesses corresponding to hanging cams.

The DE 10 2004 058 597 A1 shows a device for finishing processing of printed sheet-like substrates by means of a rotary die-cutting process, in which the substrate can be inserted between two rotating processing rollers and undergoes processing, with one processing roller having a gripper for transporting the substrate in correct register and at certain positions of one of the processing rollers pinpoint needles have on the surface that will receive scrap clippings.
The substrates are guided in the areas on the outer surface of the processing roller that are spaced apart from the gripper using a large number of mechanically moved individual parts and is susceptible to contamination.

From the DE 10 2004 058 598 A1 is a tool part in a device for the finishing processing of printed and/or coated sheets

Substrates, especially for z. B. Punching by means of a rotation process, in which the substrate can be inserted between two rotating processing rollers and undergoes processing as it passes through tool parts that are active in the working gap, with a processing roller having a gripper for the transport of the substrate in correct register and the tool part profiled as a die having circumferential openings having.
The tool part has a complex structure and, in addition to profiling, also has openings.

The DE 10 2004 058 599 A1 discloses a device for finishing processing of printed sheet-like substrates, of printed paper or the like, by means of a rotary die-cutting process in which the substrate can be inserted between two rotating processing rollers in the feed direction, the processing roller having a gripper for transporting the substrate in correct register. Two further processing rollers are assigned to the processing roller in the 12 o'clock position and in the 10 o'clock position.
Due to the large number of processing rollers, the device is constructed in a comparatively complex manner.

The DE 10 2004 058 600 A1 shows a device for finishing processing of printed sheet-like substrates with two processing rollers. Next to one of the processing rollers, an approximately horizontally aligned conveyor belt is arranged that is designed in a form-bound manner.

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.

The GB 969 753 A discloses an apparatus for separating blanks and scraps from die-cut sheets.

The DD 214 566 A1 describes a device for breaking out pre-punched pieces of material.

The invention is based on the object of creating a device for treating substrates, with which a separation of processed substrates into one or more waste parts and at least one blank is made possible. In particular, the invention is based on the object of creating a device for treating substrates which has improved flexibility.

This object is achieved by a device which is designed according to the features of patent claim 1.

The advantages that can be achieved with the invention are that an effective and/or safe separation of substrates into at least one waste part and at least one use is created while minimizing the mechanical complexity required for this.
In one embodiment of the invention, it is particularly advantageous that the separating device treats substrate that has already been processed, in particular separating it into at least one waste part and at least one blank, with the substrate being processed by tool parts effective in the cylinder gap of two processing rollers upstream of the separating device, in particular by cutting, punching , grooving or perforating. The functional stability of the device for treating substrates is increased by realizing the separation, also referred to as breaking out, on the one hand, and the processing on the other hand at different locations.
Another particular advantage is that the formation of two air supply means for the independent supply of first and second openings in conjunction with the ability to switch between suction air supply and blown air supply ensures that waste parts and/or items are transported safely and released at the locations provided for them.

In the case of a device for treating substrates with a gripper system for fixing the front edges of sheet-shaped substrate, which is designed as a suction gripper system, it is particularly advantageous that substrate sheets or waste parts known as grids can be transported safely until they are released at the locations provided for them he follows. In comparison to mechanical gripper systems, in particular clamping grippers, the suction gripper system has a comparatively simple structure. The formation of the suction gripper system for register-accurate transport can advantageously be omitted. In the case of the last-mentioned device, it is furthermore particularly advantageous that the means for fixing the elevator are associated with the suction gripper system, which includes the reverse case. This advantageously ensures that the number of moving parts is kept to a minimum. With minimal space requirements, the functions of fixing the elevator and holding the front edges of the sheet-shaped substrate or grids are implemented in a simple manner and, moreover, in a functionally stable manner. The suction air required to operate the suction gripper system is already present on the transport cylinder and can also be used advantageously for holding waste parts and/or items on the outer surface of the transport cylinder.

In an embodiment of the device for treating substrates with a separating device that includes a transport cylinder to which a circulating transport belt is assigned, it is particularly advantageous that the transport belt reliably takes over the waste parts or blanks from the transport cylinder. If the conveyor belt is assigned directly to the transport cylinder and forms a transfer point or a transfer area with the transport cylinder, in particular in the form of a tangent point or an angle of wrap, the conveyor belt can advantageously support the removal of the waste parts or blanks. The latter applies in particular when the conveyor belt is a suction belt. In the latter device, it is also particularly advantageous that the transfer of waste parts or blanks from the transport cylinder to the transport belt is supported by the application of blown air to the lateral surface of the transport cylinder, ie in particular to the openings of the lift fixed on the transport cylinder. It is also advantageous if the transfer of waste parts or blanks from the transport cylinder to the transport belt is effected solely by the application of blown air to the lateral surface of the transport cylinder and that Conveyor belt is not designed with saugluftbeaufschlagten openings, ie as a suction belt.

In the case of a device for treating substrates with a separating device that includes a transport cylinder and a stripping cylinder assigned to the transport cylinder and to which a circulating conveyor belt is assigned, there is an advantage in particular in the flexible usability of the device. If the conveyor belt is assigned directly to the stripping cylinder and forms a transfer point or a transfer area with the stripping cylinder, in particular in the form of a tangent point or an angle of wrap, the conveyor belt can advantageously support the removal of the waste parts or blanks. The latter applies in particular when the conveyor belt is a suction belt. In the case of the last-mentioned device, it is also particularly advantageous that the transfer of waste parts or blanks from the stripping cylinder to the conveyor belt is supported by the application of blown air to the outer surface of the stripping cylinder, i.e. in particular to the openings of the elevator fixed on the transport cylinder. It is also advantageous if the transfer of waste parts or blanks from the stripping cylinder to the conveyor belt is effected solely by the application of blown air to the lateral surface of the transport cylinder and the conveyor belt is not designed with openings subjected to suction air, i.e. as a suction belt.

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 den Transportzylinder der Trenneinrichtung
• 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 erste Luftversorgungsmittel
• 6 zweite Luftversorgungsmittel
• 7 den Transportzylinder mit Luftversorgungsmitteln
• 8 Luftversorgungsmittel Sauggreifersystem
• 9 Transportzylinder mit Ausbrechzylinder
• 10 einen detaillierten Ausschnitt des Ausbrechzylinders im Bereich des Zylinderkanals mit Mitteln zum Fixieren des Aufzugs im geschlossenen Zustand 11 und 12. Transportzylinder mit umlaufendem Saugband
• 14 und 15. Transportzylinder mit umlaufendem Saugband
• 16 Transportzylinder mit Mittel zum Zuführen eines Aufzugs
• 17 eine schematische Darstellung einer bogenverarbeitenden Maschine mit schematischer Darstellung einer Vorrichtung zum Behandeln von Substraten

Show it:

• 1 a schematic representation of a sheet processing machine with a schematic representation of a device for treating substrates 2 the transport cylinder of the cutting device
• 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 first means of air supply
• 6 second air supply means
• 7 the transport cylinder with air supply means
• 8th Air supply means Suction cup system
• 9 Transport cylinder with break-out cylinder
• 10 a detailed section of the breakout cylinder in the area of the cylinder channel with means for fixing the elevator in the closed state 11 and 12 . Transport cylinder with circulating suction belt
• 14 and 15 . Transport cylinder with circulating suction belt
• 16 Transport cylinder with means for feeding a lift
• 17 a schematic representation of a sheet processing machine with a schematic representation of a device for treating substrates

The device for treating substrates 1 with a separating device 2, with which processed substrate 1 can be separated into at least one waste part 9 and at least one blank 10, can be designed as an independent machine and in this case has a feed system for substrate 1 that is not described in detail .

According to a further embodiment, the separating device 2 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 machine is provided as the sheet-processing machine, as is used, for example, in 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 machine includes a feed system for substrates 1, also referred to as feeder 7. Substrates 1 are in particular sheet-shaped workpieces made of paper, cardboard, cardboard, corrugated cardboard, plastic or the like, which are preferably printable or printed. The substrates 1 are present as a stack in the feeder 7 of the sheet-fed printing press and are separated by it and fed via an acceleration system 8 to the aggregates of the sheet-fed printing press downstream of the feeder 7 . The sheet-fed printing press comprises at least one, preferably several, printing units 6. The printing units 6 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 a dampening unit. In printing unit 6, substrate sheet 1 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 blanket cylinder 43 and then to the subsequent unit of the sheet-fed printing press, e.g. in the form of the next printing unit 6, passed. One or more processing units 46 can be formed after the printing unit(s) 6 or between the printing units 6. 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 6 . In this case, a printing unit 6 serves as a 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 elevator carriers that act mechanically, in particular with a positive or non-positive fit. 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 formed after one or more printing units 6 . In the case of several printing units 6, 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 6 . Alternatively, one or more processing units 46 can also be interposed between one or more printing units 6 . The sheet-fed printing press preferably also includes one or more varnishing units, which are preferably connected downstream of the printing units 6 or are connected to the processing units 46 .

A substrate-processing, in particular sheet-processing machine that is not a printing press can have the same structure as the sheet-fed printing machine described, minus the printing units 6 .

Following the printing units 6 or the processing units 46, the separating device 2 is formed. The separating device comprises a transport cylinder 3. The transport cylinder 3 is double-sized, ie it transports two substrate sheets 1 per revolution. However, the invention is not limited to a double-sized version of the transport cylinder 3. 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 3 there is a sheet holding system for fixing the front edges of the sheet-like substrate 1, 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 3 is a multiple of its extent in the circumferential direction. The extent of the suction area of the suction gripper system 17 in the circumferential direction of the transport cylinder 3 is preferably 15 mm. The suction area can be formed by a continuous opening extending across the width of the transport cylinder 3 or by a multiplicity of suction openings lying next to one another. The extension of the suction area in the axial direction of the transport cylinder 3 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 feed path of the suction air for the suction openings which are on the outside in relation to the center of the transport cylinder 3. The adjustability of the extension of the suction area has the advantage that the suction air consumption is minimized. The transport cylinder 3 also preferably has means (in the case of a double-sized system, two fixing means are formed) for fixing an interchangeable elevator 5 . The means for fixing are preferably designed as clamping grippers. With them, a respective lift 5 can be fixed at the rear edge and at the front edge. The means for fixing the front edge of the dressing 5 are preferably formed by the clamping element front edge 22 (also referred to as the clamping jaw) and the further clamping element 24 (also referred to as the impact) which interacts correlatively with this to form a clamping gap. The other clamping element 24 is mounted firmly on the base body of the transport cylinder 3 . The clamping element 22 is firmly connected to a lever 21 which is mounted on the base body of the transport cylinder 3 such 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 3 . The 3 shows the front edge clamping gripper with the front edge of the lift 5 fixed, ie in the closed state. The 4 shows the front edge clamping gripper with the front edge of the elevator 5 released, ie 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 3 . 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 3 . 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 if the pneumatic muscle 23 is depressurized, ie switched without force, the force of the force accumulator 23, in particular of 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 limited by striking the front edge 22 of the clamping element on the other front edge clamping element 24 or the lift 5 . The rear edge of the packing 5 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 clamp 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 3 . The carriage 49 preferably carries the tensioning shaft 50 and the toggle lever 51 in addition to the rear edge of the clamping gripper. The carriage 49 is then 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 5, they preferably carry positioning pins or are preferably associated with 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 3 preferably has first and second openings 12, 13 which, when the elevator 5 is fixed, are at least partially covered by the openings that can be formed in the elevator 5. 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, ie in particular blown air or suction air, which are suitable in particular for exerting a physical effect such as force and which can be characterized by at least one of the parameters static pressure, dynamic pressure or volume flow. 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 ger can be comprised by the first and second air supply means 14, 15 and, in particular, form the air supply means 14, 15 together with all means that supply the air to the openings 12, 13 and/or control the supply.

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 3. The first and second openings 12, 13 are preferably arranged alternately in the circumferential direction of the transport cylinder 3 or in the axial direction of the transport cylinder 3. 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 outer surface of the transport cylinder 3 preferably results in a fine-meshed network of elements with which any openings formed in the elevator 5 can be supplied with air. The arrangement of the openings in the lift 5 takes place in accordance with the arrangement of the waste part or waste parts 9 on the one hand and the panel 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 5, while all second openings 13, which are formed in the area of the panel 10, have no openings in the lining 5 opposite. The same applies analogously to the area of waste parts 9, in which case the second openings 13 are opposite openings in the lift 5, while the first openings 12 are covered by closed areas of the lift 5. Through these measures, benefit 10 and waste parts 9 can be treated differently or fixed on the lateral surface of the transport cylinder 3 or its elevator 5 .

The details of the air supply to the first and second openings 12, 13 are particularly shown in FIGS 5 , 6 and 7 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 stripping cylinder 4 or assigned to it. Two rotary slides or two rotary inlets are preferably formed on opposite end faces of the transport cylinder 3 . 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 3 . A plurality of groove-shaped recesses 19 , 56 , 57 are formed in the disc 18 , which preferably extend in the shape of a segment of a circle, coaxially with the axis of rotation 16 of the transport cylinder 3 . 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 disc 18 facing the transport cylinder 3 . 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 3. 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 are located on the same radius in the circumferential direction of the disk 18 considered one behind the other recesses 19, 56 and 57 form. The recesses 19, 56 and 57 correspond in terms of their distance (radius) to the axis of rotation 16 of the transport cylinder 3 with openings 58 formed in the end face of the transport cylinder 3. Each of the openings 58 in the end face of the transport cylinder 3 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 3 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 3 opposite. At the in 2 In the embodiment shown, the recesses 57 closest to the axis of rotation 16 of the transport cylinder 3 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 disk 18 is stationary relative to the transport cylinder 3, which rotates about the axis of rotation 16 in the operating state. Due to the extent of the recesses 19, 56 and 57 in the circumferential direction of the transport cylinder 3, areas of suction or blown air are determined, which are formed on the lateral surface of the transport cylinder 3 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, in its extension by the same air supply tel 12 or 13 according to the recesses 19, 56 supplied area can be shortened by an angle-related shutdown of the air supply takes place. Likewise, an area supplied over its extent by the same air supply means 12 or 13 corresponding to the recesses 19, 56 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 transport cylinder 3 is used for fixing and the blowing area for repelling blanks 10 or waste parts 9. 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 suction air supply to blowing air supply when the respective first openings 12 reach a first release point as a result of the transport cylinder 3 rotating about its axis of rotation 16 . More preferably, the second air supply means 15 switch the air supply of the second openings 13 off or from suction air supply to blowing air supply when the respective second openings 13 reach a second release point as a result of the transport cylinder 3 rotating about its axis of rotation 16 .

The disc 18 is preferably connected to a frame via a torque support 20 and is rotatably mounted on the transport cylinder 3 . The transport cylinder 3 is preferably rotatably mounted in the same frame to which the torque arm 20 is articulated.

To shift the areas of suction or blown air, which are formed on the lateral surface of the transport cylinder 3 in relation to the angle of rotation, adjusting elements for rotating the disk 18 can be provided.

In order to facilitate assembly, the disk 18 preferably has a recess which allows the disk 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 3 . 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 3 . 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 3, the recess 57 corresponds to one or more openings 58 formed in the end face of the transport cylinder 3. 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 3 opposite. In other words, the length and position of the angular range in which suction air is applied to the suction pad system 17, i.e. the suction pad system 17 develops a holding effect, is determined by the extent 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 outer surface of the transport cylinder 3 . The suction gripper system 17 is preferably assigned to the means for fixing the elevator 5 in place. In particular, the suction gripper system 17 can be mounted on the means for fixing the elevator 5 . The means for fixing the elevator 5 in place and thus also the suction gripper system 17 are preferably movable, in particular pivotable gets. 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 4 is arranged adjacent to the transport cylinder 3 . Like the transport cylinder 3, the stripping cylinder 4 is rotatably mounted. The stripping cylinder 4 is used to break out waste parts 9 or 10 blanks. The stripping cylinder 4 preferably has third openings 32 . Third air supply means are provided for supplying the third openings 32 with air.

Like the transport cylinder 3, the stripping cylinder 4 can also be double-sized or single-sized. In the case of a double-sized design of the stripping cylinder 4, its circumference or diameter corresponds to the circumference or diameter of a double-sized transport cylinder 3. The stripping cylinder 4 is preferably designed to be single-sized. In terms of its construction, the stripping cylinder 4 preferably resembles the transport cylinder 3 in many features, so that for the description of the structure of the stripping cylinder 4 reference is made to the explanations regarding the structure of the transport cylinder 3 . This applies in particular to all assemblies of the transport cylinder 3 or the stripping cylinder 4 for which structural differences or an absence are not expressly pointed out. The nature of the stripping cylinder 4 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 the transport cylinder 3, the stripping cylinder 4 does not include a sheet holding system for fixing the front edges of the sheet-like substrate 1.

Like the transport cylinder 3 , the stripping cylinder 4 preferably has means for fixing an exchangeable elevator 5 . The means for fixing are preferably designed as clamping grippers. With them, a respective lift 5 can be fixed at the rear edge and at the front edge. The means for fixing the front edge of the dressing 5 are preferably formed by the clamping element front edge 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 4 . 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, for example in the form of compressed air, to the actuating element 25, the gap formed between the clamping element front edge 22 and the further clamping element 24 can be enlarged and Switching off the overpressure on the actuating element 25 are reduced, which corresponds to the jamming of the elevator 5. The 10 shows the clamping gripper of the stripping cylinder 4 front edge with a fixed front edge of the elevator 5, ie in the closed state.

The rear edge of the packing 5 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 of the clamping gripper or the rear edge of the clamping gripper, can be displaced in the circumferential direction of the stripping cylinder 4 for tensioning the elevator. 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 slide 49 that can be displaced in the circumferential direction of the stripping cylinder 4 . The carriage 49 preferably carries the tensioning shaft 50 and the toggle lever 51 in addition to the rear edge of the 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 5, they preferably carry positioning pins or are preferably associated with 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. So it turns out to be an alternative to training of non-positively acting elements is also advantageous if the elements for fixing the front edge and/or the elements for fixing the rear edge are designed for positive fixing of elevators 5 . In this case, in particular, hook-shaped or claw-shaped retaining elements can be formed, which correspond to recesses that are formed in the elevator 5 or engage in retaining rails that are firmly connected to the elevator 5.

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 4, which can be covered by a channel cover.

The stripping cylinder 4 preferably has third openings 32 which, when the dressing 5 is fixed, are at least partially covered by the openings that can be formed in the dressing 5 . 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.e. in particular blown air or suction air, which are suitable in particular for exerting a physical effect such as force and which can be characterized by at least one of the parameters static pressure, dynamic pressure or volume flow. 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 surface area of the stripping cylinder 4 . The third openings 32 are preferably in the form of grooves or holes. The arrangement of the third openings 32 in the lateral surface of the stripping cylinder 4 preferably results in a fine-meshed network of elements with which any openings formed in the elevator 5 can be supplied with air. The arrangement of the openings in the lift 5 takes place in accordance with the arrangement of waste part or parts 9 on the one hand or panel 10 on the other hand. For example, in the region of those third openings 32 that are formed in the region of use, openings can be formed in the elevator 5. This proves to be advantageous if the stripping cylinder 4 is to be used to transport the panel 10.

If the use of the stripping cylinder 4 for transporting waste parts 9 is provided, openings in the elevator 5 are preferably formed in the region of those third openings 32 which are formed in the region of waste parts 9 . Through these measures, blanks 10 or waste parts 9 can be treated differently or fixed on the outer surface of the transport cylinder 3 or its elevator 5 .

The release of the blanks 10 or waste parts 9 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 3. 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 stripping cylinder 4 or assigned to it. The rotary slide or the at least one rotary inlet preferably includes a disk 18 which is associated with one of the end faces of the stripping cylinder 4 . A recess X is formed in the disk 18 and preferably extends in the shape of a segment of a circle, coaxially with the axis of rotation of the stripping cylinder 4 . The recess is supplied with air via a fourth supply nozzle 53 . The recess is formed on the side of the disk 18 facing the stripping cylinder 4 . 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 . Each recess corresponds in terms of its distance (radius) to the axis of rotation of the stripping cylinder 4 with openings 58 formed in the end face of the stripping cylinder 4. Each of the openings 58 in the end face of the transport cylinder 3 communicates via additional lines either with a single or part or all third openings 32 in the lateral surface of the stripping cylinder 4. 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 4.

The disc 18 is stationary relative to the stripping cylinder 4, which rotates about its central axis in the operating state. The extent of the recesses in the circumferential direction of the stripping cylinder 4 determines areas of suction or blast air that are formed on the outer surface of the stripping cylinder 4 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 extent of 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, an area supplied in its extent by the third air supply means corresponding to the recesses 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 4 is used for fixing and the blowing area for removing blanks 10 or waste parts 9.

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. Preferably, the third air supply means 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 by rotation of the stripping cylinder 4 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 4 . The stripping cylinder 4 is preferably rotatably mounted in the same frame to which the torque support 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 4 in relation to the angle of rotation, actuators for rotating the disc 18 can be provided.

In order to facilitate assembly, the disk 18 preferably has a recess which allows the disk 18 to be displaced radially in the sense of displacement for the purpose of replacement. The recess has an extent that is greater than the diameter of a pin of the stripping cylinder 4 in the region of the stripping cylinder 4 in which the disk 18 is associated with it.

The stripping cylinder 4 and the transport cylinder 3 preferably each carry a lift 5 for treating substrates 1, in particular for separating or breaking out processed, i.e. cut or cut through, ridged or perforated substrate 1 into at least one waste part 9 and at least one panel 10. When separating or breaking out, remaining holding webs or material connections that are not intended to be completely cut through, in particular fibers or fiber bundles, are torn in the area of cutting lines between waste part 9 and at least one benefit 10. For this purpose, one of the elevators 5 can be designed as a female mold and the other elevator 5 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 1 and form tools. The die has a base plane and areas that are recessed relative to the base plane or other recesses. Die and patrix are arranged on the transport cylinder 3 or stripping cylinder 4 in such a way that the raised areas of the patrix 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 3 or the stripping cylinder 4 and the patrix on the other cylinder. The other cylinder in this sense is the cylinder cooperating with the cylinder carrying the matrix (transport cylinder 3 or stripping cylinder 4). The matrix is preferably arranged on the transport cylinder 3 and the patrix on the stripping cylinder. The above-described pair of tools male and female preferably differs from male and female tool pairs as they are used for cutting or perforating, e.g. on the processing cylinders upstream of the cutting device 2 . 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.

Preferably, 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 9 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 9 or the benefits 10 are preferably used by the patient rize into the recessed areas or the other recesses of the matrix. In the case of using a male mold with an elastic surface, the waste parts 9 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 in the the die, the substrate is pressed against the surface of the die. If a patrix with an elastic surface is used, it can also be designed as a sleeve.

If no stripping cylinder 4 is assigned to the transport cylinder 3, the waste parts 9 and blanks 10 are moved relative to one another and residual webs or individual fibers or fiber bundles are torn in the area of the cutting lines. The separating device 2 is preferably designed in such a way that it acts exclusively on that side of the processed substrate 1 which faces the transport cylinder 3 , while the substrate 1 is being transported on the transport cylinder 3 . In a preferred embodiment, the separating device 2 is formed from raised areas and areas of the surface of the transport cylinder 3 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 3 is assigned an interchangeable dressing 5, with the raised areas of the surface of the transport cylinder 3 being replaced by the dressing 5 and the recessed areas of the surface of the transport cylinder 3 being replaced by the lateral surface of the transport cylinder 3 in the area of openings formed in the dressing 5 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 3 . 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 realize the relative movement of the waste parts 9 and blanks 10 relative to one another, the transport cylinder 3 can be assigned a lift 5 which is designed in particular in the manner of a matrix and has recessed areas or further openings. In the area of the recessed areas or other openings, a negative pressure is applied via the first and/or second openings 12, 13, which moves the waste parts 9 and blanks 10 relative to one another, i.e. in particular pulls the waste parts 9 into the recessed areas or the other openings , while the panels 10 are supported on the base plane of the die. 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 9 are supported on the base plane of the matrix. 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 9 facing transport cylinder 3 . In this case, openings are preferably arranged in the area of the recessed areas. 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 9 facing the transport cylinder 3.

According to another preferred embodiment, with or without a stripping cylinder 4, a circulating conveyor belt 29 is assigned to the transport cylinder 3, as shown in particular in FIG 11 or 12 . is evident. The conveyor belt 29 is preferably arranged above the transport cylinder 3 . The conveyor belt 29 is assigned to partially wrap around the transport cylinder 3, preferably forming a wrap angle. As an alternative to this, the transport belt 29 can also be associated with the transport cylinder 3 , forming a tangent point 36 . More preferably, the tangent point 36 is formed in the 12 o'clock position of the transport cylinder 3 . 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 hanging transport of use and/or waste parts 10, 9.

The conveyor belt 29 has in particular the function of processed substrate sheets 1, waste parts 9 or blanks 10 at the tangent point 36 or in the area of the wrap around the conveyor belt 29 in order to take over the transport cylinder 3 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 further conveyor belt 30, in which functionally processed substrate sheets 1 or blanks 10 and/or waste parts 9 can be transferred from the conveyor belt 29 to the further conveyor belt 30. The other is more preferred Conveyor belt 30 for horizontal transport of benefit and / or waste parts 10, 9 formed.

It goes without saying that instead of the additional conveyor belt 30, another suitable transport system can also be configured that accepts processed substrate sheets 1 or blanks 10 and/or waste parts 9 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 assigned directly to the transport cylinder 3, i.e. forming a transfer area or transfer point between the transport cylinder 3 and the other transport system for processed substrate sheets 1 or panels 10 and/or waste parts 9. 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 . illustrated embodiment two processing cylinders, between which the substrate 1 can be inserted, wherein the substrate 1 undergoes processing when passing through effective tool parts in the cylinder gap from the group of cutting tools, punching tools, grooving tools, perforating tools. 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 1 to the transport cylinder 3 at the tangent point A between transport cylinder 3 and the upstream sheet transport cylinder. The sheet holding system of the sheet transport cylinder releases the processed substrate sheet 1, while the gripper system, in particular the suction gripper system 17 of the transport cylinder 3, holds the processed substrate sheet, in particular the cut substrate sheet 1 takes over. The substrate sheet 1 preferably comprises an edge and waste parts 9 and blanks 10 connected to it by so-called residual webs. The transport cylinder 3 carries an elevator 5. The elevator 5 has openings and has indentations at the points at which it acts on the blank 10 Mistake. Perforations are made on the one hand in the area of the panel 10 at the points in the elevator 5 at which first openings 12 are formed, the second openings 13 in the area of the panel 10 being covered by the elevator 5, ie closed. On the other hand, openings are also made in the area of the waste parts 9 at the points in the elevator 5 at which second openings 13 are formed, the first openings 12 in the area of the waste parts 9 being covered by the elevator 5, ie closed. When the first openings 12 have passed the tangent point A as a result of the rotation of the transport cylinder 3 or exactly at the tangent point A, the first air supply means 14 apply a negative pressure to the first openings 12, which presses the blanks 10 on the lateral surface of the transport cylinder 3 or on the elevator 5 fixed. As a result of the further rotation of the transport cylinder 3, the blanks 10 fixed by the negative pressure and the waste parts 9 reach the tangent point B, which is formed between the transport cylinder 3 and the stripping cylinder 4. At the tangent point B, the raised areas of the elevator 5, which is arranged on the stripping cylinder 4, make contact with the surfaces of the waste parts 9 and press the waste parts 9 into the depressions of the elevator 5 fixed on the transport cylinder 3. The residual webs that the waste parts 9 connect to the frame or to good parts 10, torn. 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 9, which fixes the waste parts 9 on the lateral surface of the transport cylinder 3 or on the elevator 5. 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 9 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 3 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 3 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 3 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 removal of benefit 10 can preferably with the further conveyor belt 30 can be realized. 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 9 reach the release point D, the negative pressure present at the second openings 13 in the area of the waste parts 9 is deactivated or, preferably, an overpressure is applied instead of the negative pressure. This results in the waste parts 9 being released or in an active repulsion of the waste parts 9 which can be received by a waste container. In the area of the release point D, the front edge of the substrate sheet 1 is preferably also released by the gripper system 17 in addition to the waste parts 9 .

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 1 to the transport cylinder 3 at the tangent point A between transport cylinder 3 and the upstream sheet transport cylinder. The sheet holding system of the sheet transport cylinder releases the processed substrate sheet 1, while the gripper system, in particular the suction gripper system 17 of the transport cylinder 3, holds the processed substrate sheet, in particular the cut substrate sheet 1 takes over. The substrate sheet 1 preferably comprises an edge and waste parts 9 and blanks 10 connected to it by so-called residual webs. The transport cylinder 3 carries an elevator 5. The elevator 5 has openings and has indentations at the points at which it acts on the blank 10 Mistake. Perforations are made on the one hand in the area of the panel 10 at the points in the elevator 5 at which first openings 12 are formed, the second openings 13 in the area of the panel 10 being covered by the elevator 5, ie closed. On the other hand, openings are also made in the area of the waste parts 9 at the points in the elevator 5 at which second openings 13 are formed, the first openings 12 in the area of the waste parts 9 being covered by the elevator 5, ie closed. When the first openings 12 have passed the tangent point A as a result of the rotation of the transport cylinder 3 or exactly at the tangent point A, the first air supply means 14 apply a negative pressure to the first openings 12, which presses the blanks 10 on the lateral surface of the transport cylinder 3 or on the elevator 5 fixed. As a result of the further rotation of the transport cylinder 3, the blanks 10 fixed by the negative pressure and the waste parts 9 reach the tangent point B, which is formed between the transport cylinder 3 and the stripping cylinder 4. At the tangent point B, the raised areas of the elevator 5, which is arranged on the stripping cylinder 4, make contact with the surfaces of the waste parts 9 and press the waste parts 9 into the depressions of the elevator 5 fixed on the transport cylinder 3. The residual webs that the waste parts 9 connect to the frame or to good parts 10, torn. The elevator 5 fixed on the stripping cylinder 4 has openings that correspond to the third openings 32 of the stripping cylinder 4 . The openings are formed in the region of the dressing 5 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 4 reach the tangent point B and face a respective panel 10 at the tangent point B, a negative pressure is applied to them. As a result of this negative pressure, a force effect is developed that lifts the blanks 10 off the surface of the transport cylinder 3 . The negative pressure at the third openings 32 of the stripping cylinder 4 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 3 under the effect of the negative pressure at the third openings 32 of the stripping cylinder 4, i.e. for a few angular degrees, in particular 10 degrees of the rotary movement of the transport cylinder 3. This measure additionally supports the separation of blanks 10 and waste parts 9, since these are actively moved in different directions, at least for a short time. 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 9, which fixes the waste parts 9 on the lateral surface of the transport cylinder 3 or on the elevator 5. 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 9 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 3 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 benefits 10 are lifted off the transport cylinder 3 in the transfer point or transfer area C Fixed underside of the conveyor belt 29 and carried away hanging from this. The transfer of the blanks 10 from the transport cylinder 3 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 another conveyor belt 30 fixed on this and transported away by this. When the waste parts 9 reach the release point D, the negative pressure present at the second openings 13 in the area of the waste parts 9 is deactivated or, preferably, an overpressure is applied instead of the negative pressure. This results in the waste parts 9 being released or in an active repulsion of the waste parts 9 which can be received by a waste container. In the area of the release point D, the front edge of the substrate sheet 1 is preferably also released by the gripper system 17 in addition to the waste parts 9 .

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 1 to the transport cylinder 3 at the tangent point A between transport cylinder 3 and the upstream sheet transport cylinder. The sheet holding system of the sheet transport cylinder releases the processed substrate sheet 1, while the gripper system, in particular the suction gripper system 17 of the transport cylinder 3, holds the processed substrate sheet, in particular the cut substrate sheet 1 takes over. The substrate sheet 1 preferably comprises an edge and waste parts 9 and blanks 10 connected to it by so-called residual webs. The transport cylinder 3 carries an elevator 5. The elevator 5 has openings. The openings are introduced at the points in the elevator 5 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 3, 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 benefit 10 or only the waste parts 9 or the benefit 10 and the waste parts 9 on the lateral surface of the transport cylinder 3 or on the elevator 5. As a result of the further rotation of the transport cylinder 3, the blanks 10 and the waste parts 9 pass the tangent point B. The waste parts 9 or the blanks with other elements do not come into contact at the tangent point B. When the respective benefit 10 and the respective waste parts 9 reach the transfer point or transfer area C between the transport cylinder 3 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 benefit 10 and the waste parts 9 are no longer fixed and are thus released. The fixing of the front edges of the substrate sheet 1 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 9 and the frames of the substrate sheets 1, including the front edges of the substrate sheets 1, which are still connected to one another by the remaining webs (complete sheets), are removed from the transport cylinder 3 in the transfer point or transfer area C lifted, fixed to the underside of the conveyor belt 29 and carried away hanging from this. The transfer of the blanks 10 and the waste parts 9 and the frames of the substrate sheets 1 including the front edges of the substrate sheets 1 as a whole sheet from the transport cylinder 3 to the transport belt 29 can be supported 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 the stripping cylinder 4, 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 3 . The conveyor belt 29 is the stripping cylinder 4 preferably forming a transfer point 38 or over assigned to the task area. More preferably, the conveyor belt 29 is arranged so that it partially wraps around the stripping cylinder 4, forming a wrap angle. The transfer point 38 or the transfer area is particularly preferably formed in the 8 o'clock position of the stripping cylinder 4 and the stripping cylinder 4 is assigned to the transport cylinder 3 in the 12 o'clock position of the transport cylinder 3 . 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 4 . 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 in particular the function of taking over the processed substrate sheet 1, waste parts 9 or blanks 10 in the transfer point 38 or transfer area between the conveyor belt 29 and the stripping cylinder 4 from the stripping cylinder 4 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 further conveyor belt 30, in which functionally processed substrate sheets 1 or blanks 10 and/or waste parts 9 can be transferred from the conveyor belt 29 to the further conveyor belt 30. It goes without saying that instead of the additional conveyor belt 30, another suitable transport system can also be configured that accepts processed substrate sheets 1 or blanks 10 and/or waste parts 9 from the conveyor belt 29. In addition to the conveyor belt 29, another transport system 76 can also be assigned directly to the transport cylinder 3, i.e. forming a transfer area or transfer point between the transport cylinder 3 and the other transport system 76 for processed substrate sheets 1 or panels 10 and/or waste parts 9. 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 5 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 blown air supply when the respective third openings 32 reach a third release point as a result of rotation of the stripping cylinder 4 about its axis of rotation, in particular the transfer point or transfer area between the stripping cylinder 4 and the 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 the stripping cylinder 4 . Like the transport cylinder 3 , the stripping cylinder 4 preferably has means for fixing an exchangeable elevator 5 . The means for fixing are preferably designed as clamping grippers. With them, a respective lift 5 can be fixed at the rear edge and at the front edge. The means for fixing the front edge of the dressing 5 are preferably formed by the clamping element front edge 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 4 . 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 packing 5 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 4 are in 10 and the associated description, to which reference is made in connection with the exemplary embodiment described. An elevator 5 with openings is preferably fixed on the stripping cylinder 4 . The openings in the opening 5 of the opening cylinder 4 correspond to the third openings 32 of the opening cylinder 4. The openings are preferably formed in the area of the opening 5, in which it is not raised and in rolling contact with the panel 10 interacts. When the third openings 32 of the stripping cylinder 4 reach the tangent point B and in Tan Gentenpunkt B face a respective benefit 10, a vacuum is applied to them. As a result of this negative pressure, a force effect is developed that lifts the blanks 10 off the surface of the transport cylinder 3 .

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 1 to the transport cylinder 3 at the tangent point A between transport cylinder 3 and the upstream sheet transport cylinder. The sheet holding system of the sheet transport cylinder releases the processed substrate sheet 1, while the gripper system, in particular the suction gripper system 17 of the transport cylinder 3, holds the processed substrate sheet, in particular the cut substrate sheet 1 takes over. The substrate sheet 1 preferably comprises an edge and waste parts 9 and blanks 10 connected to it by so-called residual webs. The transport cylinder 3 carries an elevator 5. The elevator 5 has openings and has indentations at the points at which it acts on the blank 10 Mistake. Perforations are preferably made on the one hand in the area of the panel 10 at the points in the elevator 5 at which first openings 12 are formed, the second openings 13 in the area of the panel 10 being covered by the elevator 5, ie closed. On the other hand, openings are preferably also introduced in the area of the waste parts 9 at the points in the elevator 5 at which second openings 13 are formed, the first openings 12 in the area of the waste parts 9 being covered by the elevator 5, ie being closed. When the first openings 12 have passed the tangent point A as a result of the rotation of the transport cylinder 3 or exactly at the tangent point A, the first air supply means 14 apply a negative pressure to the first openings 12, which presses the blanks 10 on the lateral surface of the transport cylinder 3 or on the elevator 5 fixed. As a result of the further rotation of the transport cylinder 3, the blanks 10 fixed by the negative pressure and the waste parts 9 reach the tangent point B, which is formed between the transport cylinder 3 and the stripping cylinder 4. At the tangent point B, the raised areas of the elevator 5, which is arranged on the stripping cylinder 4, make contact with the surfaces of the waste parts 9 and press the waste parts 9 into the depressions of the elevator 5 fixed on the transport cylinder 3. The residual webs that the waste parts 9 connect to the frame or to good parts 10, torn. The elevator 5 fixed on the stripping cylinder 4 has openings that correspond to the third openings 32 of the stripping cylinder 4 . The openings are preferably formed in the region of the dressing 5 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 4 reach the tangent point B and are opposite a respective panel 10 at the tangent point B or directly in front of it, a negative pressure is applied to them. As a result of this negative pressure, a force effect is developed that lifts the blanks 10 off the surface of the transport cylinder 3 . The negative pressure present at the first openings 12 of the transport cylinder 3 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 3 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 9 are held on the surface of the transport cylinder 4 and transported past the tangent point B, while the blanks 10 are transferred from the transport cylinder 3 to the stripping cylinder 4 at the tangent point B. As a result of its rotation, the stripping cylinder 4 transports the blanks 10 fixed by vacuum further in the direction of the conveyor belt 29 until they reach the transfer point or transfer area E of the stripping cylinder 4 and the conveyor belt 29 . In the transfer point or transfer area E of the stripping cylinder 4 and the conveyor belt 29, a suction effect is preferably exerted on the side of the blank 10 facing away from the stripping cylinder 4 by the transport 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 4 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 9, which fixes the waste parts 9 on the lateral surface of the transport cylinder 3 or on the elevator 5. Alternatively, the negative pressure on the second Air supply means 15 can also be applied to the second openings 13 in the area of the waste parts 9 at the target point A or immediately thereafter. When the waste parts 9 reach the release point D, the negative pressure present at the second openings 13 in the area of the waste parts 9 is deactivated or, preferably, an overpressure is applied instead of the negative pressure. This results in the waste parts 9 being released or in an active repulsion of the waste parts 9 which can be received by a waste container. In the area of the release point D, the front edge of the substrate sheet 1 is preferably also released by the gripper system 17 in addition to the waste parts 9 .

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 1 to transport cylinder 3 at the tangent point A between transport cylinder 3 and the upstream sheet transport cylinder. The sheet holding system of the sheet transport cylinder releases the processed substrate sheet 1, while the gripper system, in particular the suction gripper system 17 of transport cylinder 3, holds the processed, in particular cut, substrate sheet 1 takes over. The substrate sheet 1 preferably comprises an edge and waste parts 9 and blanks 10 connected to it by so-called residual webs. The transport cylinder 3 carries an elevator 5. The elevator 5 has openings. The openings are introduced at the points in the elevator 5 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 3, 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 benefit 10 or only the waste parts 9 or the benefit 10 and the waste parts 9 on the lateral surface of the transport cylinder 3 or on the elevator 5. When the respective blanks 10 and the respective waste parts 9 reach the tangent point B as a result of the further rotation of the transport cylinder 3, the first and/or second air supply means 14, 15 are preferably deactivated. The negative pressure in the region of the first and/or second openings 12, 13 is no longer present and the benefit 10 and the waste parts 9 are no longer fixed and are thus released. The fixing of the front edges of the substrate sheets 1 by the gripper system 17 is also canceled at the tangent point B. When the third openings 32 of the stripping cylinder 4 reach the tangent point B and are opposite a respective panel 10 at the tangent point B or directly in front of it, a negative pressure is applied to them. As a result of this negative pressure, a force effect is developed that lifts the blanks 10 off the surface of the transport cylinder 3 . The negative pressure present at the first and/or second openings 12, 13 of the transport cylinder 3 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 9 and the frames of the substrate sheets 1, including the front edges of the substrate sheets 1, which are still connected to one another by the remaining webs (complete sheets), are removed from the transport cylinder 3 at the tangent point B lifted and transferred to the stripping cylinder 4. The transfer of the blanks 10 and the waste parts 9 and the frames of the substrate sheets 1 including the front edges of the substrate sheets 1 as a whole sheet from the transport cylinder 3 to the stripping cylinder 4 can be supported by applying an 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 4 transports the complete sheets fixed by vacuum further in the direction of the conveyor belt 29 until they reach the transfer point or transfer area E of the stripping cylinder 4 and the transport belt 29 . In the transfer point or transfer area E of the stripping cylinder 4 and the conveyor belt 29, a suction effect is preferably exerted on the side of the whole sheet facing away from the stripping cylinder 4 by the transport 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 4 to the conveyor belt 29 at 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 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 4, a peeling device 31 is assigned to the transport cylinder 3, as in particular theirs off 14 is evident. The peeling device 31 preferably has a contact surface which extends in the direction of a virtual tangent applied to the transport cylinder 3 . 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 assigned to the transport cylinder 3, preferably in its 12 o'clock position or viewed in the direction of rotation of the transport cylinder 3, 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 3 .

The transport cylinder 3 and the optional stripping cylinder 4 can be designed according to those embodiments of transport cylinder 3 and stripping cylinder 4, as they are particularly 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 1, waste parts 9 or blanks 10 with the aid of the peeling device 31 from the surface of the transport cylinder 3 or the surface of the elevator 5 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 further conveyor belt 30, in which processed substrate sheets 1 or blanks 10 and/or waste parts 9 can be transferred from the conveyor belt 29 to the further conveyor belt 30.

It is self-evident that instead of the additional conveyor belt 30 another suitable transport system can also be configured, which takes over the processed substrate sheet 1 or panel 10 and/or waste parts 9 from the conveyor belt 29 .

Instead of the further conveyor belt 30, a container for receiving waste parts 9 can also be arranged under the conveyor belt 29.

In addition to the conveyor belt 29, another transport system 76 can also be assigned directly to the transport cylinder 3, i.e. forming a transfer area or transfer point between the transport cylinder 3 and the other transport system 76 for processed substrate sheets 1 or panels 10 and/or waste parts 9. 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 1 is preferably part of a sheet-fed printing press. The sheet-fed printing press can include one or more printing units 6 . More preferred are the in 14 . illustrated embodiment two processing cylinder upstream, between which the substrate 1 can be inserted, the substrate 1 undergoes processing when passing through effective tool parts in the cylinder gap from the group of cutting tools, punching tools, grooving tools, perforating tools. 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 1 to transport cylinder 3 at the tangent point A between transport cylinder 3 and the upstream sheet transport cylinder cut substrate sheet 1 takes over. The substrate sheet 1 preferably comprises an edge and waste parts 9 and blanks 10 connected to it by so-called residual webs. The transport cylinder 3 carries an elevator 5. The elevator 5 has openings and has indentations at the points at which it acts on the blank 10 Mistake. Perforations are made on the one hand in the area of the panel 10 at the points in the elevator 5 at which first openings 12 are formed, the second openings 13 in the area of the panel 10 being covered by the elevator 5, ie closed. On the other hand, openings are also made in the area of the waste parts 9 at the points in the elevator 5 at which second openings 13 are formed, the first openings 12 in the area of the waste parts 9 being covered by the elevator 5, ie closed. When the first openings 12 have passed the tangent point A as a result of the rotation of the transport cylinder 3 or exactly at the tangent point A, is of a negative pressure is applied to the first air supply means 14 at the first openings 12, which fixes the blanks 10 to the lateral surface of the transport cylinder 3 or to the elevator 5. As a result of the further rotation of the transport cylinder 3, the blanks 10 fixed by the negative pressure and the waste parts 9 reach the tangent point B, which is formed between the transport cylinder 3 and the stripping cylinder 4. At the tangent point B, the raised areas of the elevator 5, which is arranged on the stripping cylinder 4, make contact with the surfaces of the waste parts 9 and press the waste parts 9 into the depressions of the elevator 5 fixed on the transport cylinder 3. The residual webs that the waste parts 9 connect with the frame or with good parts (panel) 10, torn. 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 9, which fixes the waste parts 9 on the lateral surface of the transport cylinder 3 or on the elevator 5. 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 9 at the target point A or immediately thereafter. As a result of the rotation of the transport cylinder 3 , the blanks 10 and the waste parts 9 are transported past the target point B until they finally reach the transfer point F between the transport cylinder 3 and the peeling-off device 31 . Before the respective blanks 10 reach the transfer point F between the transport cylinder 3 and the peeling-off device 31, the first air supply means 14 of the transport cylinder 3 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 are pushed off the surface of the transport cylinder 3 or its elevator 5 to the extent that the overpressure builds up at the first openings 12 . At least the front edges of the blanks 10 , viewed in the direction of rotation of the transport cylinder 3 , protrude beyond the peeling device 31 in the radial direction of the transport cylinder 3 . The peeling device 31 aims into the gap formed between the front edges of the blanks 10 and the surface of the transport cylinder 3 or its elevator 5. As a result of the rotation of the transport cylinder 3, 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 9 terminated when the release point D is reached, but the lifting of the waste parts 9 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 1 is preferably also released by the gripper system 17 in addition to the waste parts 9 .

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 1 to transport cylinder 3 at the tangent point A between transport cylinder 3 and the upstream sheet transport cylinder cut substrate sheet 1 takes over. The substrate sheet 1 preferably comprises an edge and waste parts 9 and blanks 10 connected to it by so-called residual webs. The transport cylinder 3 carries an elevator 5. The elevator 5 has openings. The openings are introduced at the points in the elevator 5 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 are located exactly at the tangent point A as a result of the rotation of the transport cylinder 3, 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 benefit 10 or only the waste parts 9 or the benefit 10 and the waste parts 9 on the lateral surface of the transport cylinder 3 or on the elevator 5. As a result of the further rotation of the transport cylinder 3, the blanks 10 and the waste parts 9 pass the tangent point B. The waste parts 9 or the blanks 10 do not come into contact with other elements at the tangent point B. The stripping cylinder 4 is turned off from the transport cylinder 3. When the respective blanks 10 and the respective waste parts 9 reach the transfer point F between the transport cylinder 3 and the peeling-off device 31, the first and/or second air supply means 14, 15 are deactivated or preferably switched to blown air supply. The negative pressure in the area of the first and/or second openings 12, 13 is no longer present and the benefits 10 and the waste parts 9 and the frames of the substrate sheet 1, including the front edges of the substrate sheet 1, which are still connected to one another by the remaining webs (complete sheet), are no longer fixed and are thus released at the transfer point F and preferably lifted in a targeted manner from the surface of the transport cylinder 3 or from the elevator 5. The fixing of the front edges of the substrate sheet 1 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 3, the complete 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 1 to transport cylinder 3 at the tangent point A between transport cylinder 3 and the upstream sheet transport cylinder cut substrate sheet 1 takes over. The substrate sheet 1 preferably comprises an edge and waste parts 9 and blanks 10 connected to it by so-called residual webs. The transport cylinder 3 carries an elevator 5. The elevator 5 has openings and has indentations at the points at which it acts on the blank 10 Mistake. Perforations are made on the one hand in the area of the panel 10 at the points in the elevator 5 at which first openings 12 are formed, the second openings 13 in the area of the panel 10 being covered by the elevator 5, ie closed. On the other hand, openings are also made in the area of the waste parts 9 at the points in the elevator 5 at which second openings 13 are formed, the first openings 12 in the area of the waste parts 9 being covered by the elevator 5, ie closed. When the first openings 12 have passed the tangent point A as a result of the rotation of the transport cylinder 3 or are located exactly at the tangent point A, the first air supply means 14 apply a negative pressure to the first openings 12, which vacuums the blanks 10 on the lateral surface of the transport cylinder 3 or fixed to elevator 5. As a result of the further rotation of the transport cylinder 3, the blanks 10 fixed by the negative pressure and the waste parts 9 reach the tangent point B, which is formed between the transport cylinder 3 and the stripping cylinder 4. At the tangent point B, the raised areas of the elevator 5, which is arranged on the stripping cylinder 4, make contact with the surfaces of the waste parts 9 and press the waste parts 9 into the depressions of the elevator 5 fixed on the transport cylinder 3. The residual webs that the waste parts 9 connect to the frame or to good parts 10, torn. The elevator 5 fixed on the stripping cylinder 4 has openings that correspond to the third openings 32 of the stripping cylinder 4 . The openings are formed in the region of the dressing 5 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 4 reach the tangent point B and face a respective panel 10 at the tangent point B, a negative pressure is applied to them. As a result of this negative pressure, a force effect is developed that lifts the blanks 10 off the surface of the transport cylinder 3 . The negative pressure at the third openings 32 of the stripping cylinder 4 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 blank 10 is briefly lifted from the surface of the transport cylinder 3 under the effect of the negative pressure at the third openings 32 of the stripping cylinder 4, i.e. for a few angular degrees, in particular 10 degrees of the rotary movement of the transport cylinder 3. This measure additionally supports the separation of blanks 10 and waste parts 9, since these are actively moved in different directions, at least for a short time. 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 9, which fixes the waste parts 9 on the lateral surface of the transport cylinder 3 or on the elevator 5. 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 9 at the target point A or immediately thereafter. As a result of the rotation of the transport cylinder 3 , the blanks 10 and the waste parts 9 are transported past the target point B until they finally reach the transfer point F between the transport cylinder 3 and the peeling-off device 31 . Before the respective blanks 10 reach the transfer point F between the transport cylinder 3 and the peeling-off device 31, the first air supply means 14 of the transport cylinder 3 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 are pushed off the surface of the transport cylinder 3 or its packing 5 to the extent that the overpressure builds up at the first openings 12 become. At least the front edges of the blanks 10 , viewed in the direction of rotation of the transport cylinder 3 , protrude beyond the peeling device 31 in the radial direction of the transport cylinder 3 . The peeling device 31 aims into the gap formed between the front edges of the blanks 10 and the surface of the transport cylinder 3 or its elevator 5. As a result of the rotation of the transport cylinder 3, 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 9 terminated when the release point D is reached, but the lifting of the waste parts 9 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 1 is preferably also released by the gripper system 17 in addition to the waste parts 9 .

Instead of the conveyor belt 29, the transport cylinder 3 can also be assigned a further transport system 76 directly, i.e. forming a transfer area or transfer point between the transport cylinder 3 and the further transport system 76 for processed substrate sheets 1 or panels 10 and/or waste parts 9. 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 1 in place. 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 which 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 1 are arranged. The substrates 1 are conveyed by the gripper bridges in the direction of transport to the delivery stack 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.

For safe transport of the substrates 1 held by the gripper bridges, a substrate guide device and, for example, a dryer are provided in the sheet delivery. 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. Blow 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 1 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 1 from sticking together on the delivery stack, 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 1 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 1, decelerated by the braking device, come into contact with front stops and are thus 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 1 to be processed lie as a stack of substrate sheets in the feeder 7 and are separated from this stack of substrate sheets and successively fed to either one or more printing units 6 and printed in them, or if none Printing units 6 are provided, fed directly to the processing unit 46. The substrate sheets 1 are processed in processing unit 46. For this purpose, the substrate sheets 1 are introduced 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 1) is produced from each substrate sheet 1, which consists of at least one blank 10 and at least a waste part 9 and a frame enclosing it, the panel 10, waste part 9 and frame adhering to one another via material connections that are not 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 now processed substrate sheets 1 are preferably transferred to the transport cylinder 3 by a sheet transport cylinder at the tangent point A between the transport cylinder 3 and the upstream sheet transport cylinder. The sheet holding system of the sheet transport cylinder releases the processed substrate sheet 1, while the gripper system 17, in particular the suction gripper system 17, of the transport cylinder 3 takes over the processed, in particular cut, substrate sheet 1. The transport cylinder 3 preferably carries an elevator 5. The elevator 5 has openings. The openings are introduced at the points in the elevator 5 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 or are located exactly at the tangent point A as a result of the rotation of the transport cylinder 3, a negative pressure is applied to the openings 12, 13 by the first and/or second air supply means 14, 15, which Benefits 10 or only the waste parts 9 or the benefits 10 and the waste parts 9 are fixed to the lateral surface of the transport cylinder 3 or to the elevator 5. As a result of the further rotation of the transport cylinder 3, the waste parts 9, which are preferably fixed by the negative pressure, reach the tangent point B, which lies between the transport cylinder 3 and

Stripping cylinder 4 is formed. At the tangent point B, the raised areas of the elevator 5, which is arranged on the stripping cylinder 4, contact the surfaces of the waste parts 9 and press the waste parts 9 into the depressions of the elevator 5 fixed on the transport cylinder 3. The material connections that have not been completely severed, the connecting the waste parts 9 to the frame or panel 10, separated, that is torn. It goes without saying that the raised areas of the elevator 5 can alternatively also be designed as recessed areas. In this case, the corresponding areas of the stripping cylinder 4 are preferably raised. The decisive factor is that the raised or recessed areas on the transport cylinder 3 and a demolition cylinder 4 assigned to it are designed in such a way that the material connections that are not completely severed are separated, that is, torn.

As a result of the rotation of the transport cylinder 3 , the blanks 10 and the waste parts 9 are transported past the target point B until they finally reach the transfer point F between the transport cylinder 3 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 9 reach the transfer point F between the transport cylinder 3 and the further transport system 76, the first and/or second air supply means 14, 15 of the transport cylinder 3 maintain the supply of suction air to the first and/or second openings 12, 13. Only when the waste parts 9 reach the release point D is the suction air supply to the first and/or second openings 12, 13 canceled or preferably switched to blown air supply, so that the waste parts 9 are released or preferably actively ejected.

In connection with the separating processes between the transport cylinder 3 and the stripping cylinder 4, it has proven to be advantageous in preferred embodiments to only remove selected material connections that have not been 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 panels 10 connected to it to maintain stability. Accordingly, it is preferably provided that the incompletely severed material connections between the rear frame part in the transport direction of the frame and the panel 10 are removed between the transport cylinder 3 and the stripping cylinder 4 and the incompletely severed material connections between the front frame part in the transport direction of the frame and the panel 10 are maintained. Furthermore, the incompletely severed material connections between the frame parts on the side in the transport direction of the frame and the panel (10) can also be eliminated.

More preferably between the transport cylinder 3 and stripping cylinder (4) are not full constantly severed material connections between multiple benefits (10) maintained.

The method described above can be carried out in particular using one of the described embodiments of the device for treating substrates 1, in particular using the 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 3, which in its basic structure in the 2 illustrated transport cylinder 3 may correspond, so hereby in particular on the 2 and the associated parts of the description and in addition to the 3 until 8th including associated parts of the description. The transport cylinder 3 can be assigned a stripping cylinder 4, which in its basic structure in the 10 shown demolition cylinder 4 may correspond, so hereby on the 10 and the associated parts of the description.

The transport cylinder 3 and/or the stripping cylinder 4 preferably have means for fixing an exchangeable lift 5 in place.

In the case of a preferred embodiment with a transport cylinder 3 without an associated stripping cylinder 4 , the means for feeding the replaceable elevator 5 are associated with the transport cylinder 3 . In the case of a further preferred embodiment with a transport cylinder 3 with associated stripping cylinder 4, the means for feeding the exchangeable packing 5 are associated with the transport cylinder 3 or the stripping cylinder 4 or both the transport cylinder 3 and the stripping cylinder 4.

The means for feeding the interchangeable dressing 5 include, if they are assigned to the transport cylinder 3, a pressing means 60 that can be selectively placed on and off the transport cylinder 3, in particular pivoted on and off, and if they are assigned to the stripping cylinder 4, a pressure means 60 on the stripping cylinder 4 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 cylinder. 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 3 or stripping cylinder 4) 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 roll or cylinder can also be assigned a motor that drives and/or brakes the roll 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 elevator 5 preferably include a guide roller 66, 67 and/or a guide rail 68, 69. More preferably, the at least one guide roller 66, 67 is associated with 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 5 can also include a store 72, 73 which is able to accommodate a plurality of elevators 5. The store 72, 73 is designed to store at least one elevator 5, while at least one other elevator 5 is arranged on the transport cylinder 3 or the stripping cylinder 4, with which the elevator 5 stored can be exchanged in alternation. The store 72, 73 is preferably able to accommodate, in addition to a lift 5 to be supplied, also a lift 5 which has been removed or is to be removed. The store 72, 73 preferably has different storage locations for an elevator 5 to be supplied and an elevator 5 to be removed.

Furthermore, the means for feeding the interchangeable dressing 5 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.

In order to arrange a dressing 5 on the transport cylinder 3 , the transport cylinder 3 is first rotated into a receiving position provided for receiving the dressing 5 . The rotation of the transport cylinder 3 can take place with the aid of an individual drive assigned to it or via a gear train which drives the transport cylinder 3 with other cylinders and which is driven by a main drive. In the pick-up position, the means for fixing the front edge of the interchangeable elevator 5 are at least approximately the memory 72 opposite. The lower edge of the elevator 5 to be fed (which corresponds to the front edge when it is fixed on the transport cylinder 3) 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 associated with the positioning in the elevator 5 correspond. If positioning pins are formed, the positioning recesses in the elevator 5 face the positioning pins and the elevator 5 is pre-aligned by the assignment of the positioning recesses to the positioning pins. To feed the elevator 5, the lower edge of the elevator 5 is released from the rail 72 by the rail 72 being pivoted or twisted by a motor or the front edge of the elevator 5 being lifted off the rail 72 manually. The pivotably mounted guard 70, 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 5 can be fed to the means for fixing the elevator 5. Once the leading edge of the elevator 5 has passed the access opening cleared by the guard 70 and guide roller 66, the guard 70 is pivoted back to its original position manually or by a motor such that the guide roller 66 contacts the elevator 5 and thus the elevator 5 on its way is guided to the nip formed between the jaw 22 and the cuff 24. The elevator 5 is preferably fed in by the force of gravity or, alternatively, motor-driven or manually. When the front edge of the elevator 5 has reached the clamping gap, the lever 21 is pivoted and the front edge of the elevator 5 is thus fixed between the clamping jaw 22 and the impact 24 . The transport cylinder 3 is then rotated counterclockwise by a motor. When the front edge of the dressing 5 has moved under the pressure roller 60 as a result of the rotation of the transport cylinder 3, the linear drive 64 is activated. The linear drive 64 pivots the pressure lever 62 until the pressure roller 60 comes into contact with the elevator 5 and presses it against the outer surface of the transport cylinder 3 . The transport cylinder 3 is then rotated further counterclockwise by a motor and the packing 5 is pressed onto the outer surface of the transport cylinder 3 in the area of influence of the pressure roller 60 until the rear edge of the packing 5 reaches the clamping gap formed between the clamping jaw 47 and the impact 48. When the trailing edge of the dressing 5 is introduced 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 5 is to be removed from the transport cylinder 3 again, the pressure roller 60 remains pivoted away from the transport cylinder 3 . Either the leading edge or the trailing edge of the elevator 5 is released from the transport cylinder 3 and the transport cylinder 3 is then rotated so that the elevator 5 is conveyed in the direction of the store 72 again. Finally, the edge of the elevator 5 that was still fixed up to that point is released.

The arrangement of an elevator 5 on the stripping cylinder 4 is comparable to the arrangement of an elevator 5 on the transport cylinder 3, so that reference is preferably made to this unless differences are expressly described.

In order to arrange an elevator 5 on the stripping cylinder 4 , the stripping cylinder 4 is first rotated into a receiving position provided for receiving the elevator 5 . The breaking cylinder 4 can be rotated with the aid of an individual drive assigned to it or via a gear train which drives the breaking cylinder 4 with other cylinders and which is driven by a main drive. The stripping cylinder 4 is preferably driven by an individual drive, whereas the transport cylinder 3 is driven via a gear train which drives the transport cylinder 3 to other cylinders and which is driven by a main drive.

In the pick-up position, the means for fixing the rear edge of the interchangeable dressing 5 are at least approximately opposite the store 73 . The elevator 5 to be fed stands with its lower edge (which corresponds to the rear edge when it is fixed on the stripping cylinder 4) 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 are provided with positioning recesses in the Elevator 5 correspond. If positioning pins are formed, the positioning recesses in the elevator 5 face the positioning pins and the elevator 5 is pre-aligned by the assignment of the positioning recesses to the positioning pins. To feed the elevator 5, the lower edge of the elevator 5 is released from the retaining pins 71 by retracting the retaining pins 71 or lifting the trailing edge 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 5 can be fed to the means for fixing the elevator 5. Once the trailing edge of the elevator 5 has cleared the access opening cleared by the guard 71 and the guide roller 67, the guard 71 is retracted manually or by a motor Starting position pivoted back so that the guide roller 67 contacts the elevator 5 and thus the elevator 5 is guided on its way to the nip formed between the jaw 22 and the impact 24 . The elevator 5 is preferably fed in by the force of gravity or, alternatively, motor-driven or manually. When the rear edge of the elevator 5 has reached the clamping gap, the pneumatic muscle 25 is relaxed and the rear edge of the elevator 5 is thus fixed between the clamping jaw 22 and the impact 24 . The stripping cylinder 4 is then rotated clockwise by a motor. When the rear edge of the dressing 5 has moved under the pressure roller 61 as a result of the rotation of the stripping cylinder 4, the linear drive 65 is activated. The linear drive 65 pivots the pressure lever 63 until the pressure roller 61 comes into contact with the elevator 5 and presses it against the lateral surface of the stripping cylinder 4 . The stripping cylinder 4 is then rotated further in a clockwise direction by the motor and the packing 5 is pressed onto the outer surface of the stripping cylinder 4 in the area of influence of the pressure roller 61 until the front edge of the packing 5 reaches the clamping gap formed between the clamping jaw 47 and the impact 48. When the leading edge of the dressing 5 is introduced 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 5 is to be removed from the stripping cylinder 4 again, the pressure roller 61 remains pivoted away from the stripping cylinder 4 . Either the front edge or the rear edge of the elevator 5 is released by the stripping cylinder 4 and the stripping cylinder 4 is then rotated so that the elevator 5 is conveyed in the direction of the store 71 again. Finally, the edge of the elevator 5 that was still fixed up to that point is released.

Reference List

1

substrate, substrate sheet

2

separator

3

transport cylinder

4

stripping cylinder

5

Elevator

6

printing unit

7

investor

8th

acceleration system

9

waste part

10

To use

11

feed direction

12

first openings

13

second openings

14

first means of air supply

15

second air supply means

16

axis of rotation

17

gripper system; suction cup system

18

disc

19

recess

20

torque arm

21

lever

22

Clamping element leading edge, clamping jaw

23

Energy accumulator, spring

24

further clamping element front edge, surcharge

25

actuator, pneumatic muscle

26

Gear means, lever

27

positioning pins

28

Adjusting means suction area

29

conveyor belt

30

another conveyor belt

31

peeling device

32

third openings

33

another lever

34

pivot point

35

Bullet

36

tangent point

37

horizontal transport area

38

transfer points

39

first transport area

40

second transport area

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

further clamping element trailing edge, surcharge

49

Sleds

50

expansion shaft

51

knee lever

52

another control element, pneumatic muscle

53

first feed pipe

54

second feed nozzle

55

third feed pipe

56

recess

57

recess

58

openings

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

another transport system

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

Claims (10)

Device for treating substrates (1) with a separating device (2) with which the processed substrate (1) can be separated into at least one waste part (9) and at least one blank (10), the separating device (2) having a transport cylinder (3) and the transport cylinder (3) comprises means for fixing an interchangeable dressing (5), which are designed as clamping grippers and have openings (12, 13) which, when the dressing (5) is fixed, are at least partially covered by openings that can be formed in the dressing (5). , wherein air supply means (14, 15) are provided for supplying the openings (12, 13) with air, the transport cylinder (3) has a suction gripper system (17) for fixing the front edges of the sheet-like substrate (1) and the transport cylinder (3) has a A peeling device (31) and a conveyor belt (29) is assigned to the peeling device (31), the peeling device (31) having a bearing surface which extends in the direction of a virtual tangent applied to the transport cylinder (3), and the conveyor belt (29) has a transport area (37) extending in the direction of the virtual tangent applied to the transport cylinder (3). device after claim 1 , with the bearing surface aligned horizontally. device after claim 1 or 2 , wherein the conveyor belt (29) is a circulating suction belt. Device according to at least one of the preceding claims, wherein the peeling device (31) is associated with the transport cylinder (3) in its 12 o'clock position or immediately adjacent to its 12 o'clock position. Device according to at least one of the preceding claims, in which the conveyor belt (29) has a transport region (37) which is horizontal or inclined at an angle of less than 10 degrees with respect to the horizontal. Device according to at least one of the preceding claims 3 until 5 , wherein the transport area (37) is an area in which suction air is present on the transport belt (29). Device according to at least one of the preceding claims, wherein the transport cylinder (3) has first and second openings (12, 13) and first air supply means (14) for supplying the first openings (12) with air and second air supply means (15) for supplying the second Openings (13) are provided with air independently of the supply of the first openings (12). device after claim 7 , wherein the first and/or the second air supply means (14, 15) can be switched between a suction air supply and a blown air supply. Device according to at least one of the preceding claims, wherein the separating device (2) is part of a sheet-fed printing press and at least one printing unit (6) is arranged upstream of the separating device (2). device after claim 9 , processing cylinders being arranged between the at least one printing unit (6) and the separating device (2).

Images