A paper receiving device for a machine that processes single sheets of paper, having a stacking carrier that can be vertically moved by a stacking lifting drive.

Abstract

The present invention relates to a paper receiving device (01) for a machine for processing single sheets of paper, the paper receiving device comprising: a stacking carrier (04) capable of vertical displacement by a stacking lifting drive device, and a conveying system (02) for conveying single sheets of paper (33) in a conveying direction (T) to a stacking area and releasing single sheets of paper (33) in the stacking area above the stacking carrier (04), wherein at least one side edge stop (20) is provided, the side edge stop having at least one stop element (35) for aligning the falling single sheets of paper (33) in the stacking area, wherein the stop element (35) has at least The invention comprises a stop surface (36) and at least one slider (23), wherein the stop surface (36) is provided with a first drive device that realizes the lifting or pivoting movement of the stop surface (36) so as to align the single sheet of paper (33) laterally by a motion component pointing transversely to the conveying direction (T), and the at least one slider (23) is provided with a second drive device independent of the first drive device that realizes the lifting or pivoting movement of the slider (23) so as to align the single sheet of paper (33) laterally by a motion component pointing transversely to the conveying direction (T). The invention also relates to a machine for processing single sheets of paper having a paper receiving device (01).

Description

Technical Field

[0001] The present invention relates to a paper receiving device for a machine for processing single sheets of paper, the paper receiving device having a stacking carrier that can be vertically moved by a stacking lifting drive device. Background Technology

[0002] Printed sheets can be placed in the delivery unit of the printing press. Here, the final alignment of the sheets is typically achieved laterally using side straighteners arranged laterally, and in the sheet travel direction using front stops and stops on the suction rollers. This allows the falling sheets to be placed very precisely overlapping each other. A stack is formed in the delivery unit, where the paper edges overlap with little or no offset laterally and in the sheet travel direction. To align the sheets, known side straighteners perform a linear lifting or tilting movement on one or both sides, through which the sheets are aligned laterally in alignment slots adjusted according to specifications.

[0003] If the sheets processed in the printing press have significant dimensional variations, particularly large tolerances in width, problems will arise in sheet alignment. Known side straighteners can only accurately align sheets with ideal widths. If the sheet width varies excessively, smaller sheets cannot be aligned because the alignment slots formed by the opposing side straighteners cannot be narrowed sufficiently; the maximum sheet width becomes the limiting factor. Smaller sheets will be left unconstrained in the stack. This can lead to problems or quality losses during subsequent processing, such as cutting in the cutting unit of a die-cutting machine.

[0004] According to DE102017221434A1, a paper receiving device and a method for placing a single sheet of paper in a stacking area formed by stops in the paper receiving device are known, wherein the stops have stop surfaces for falling single sheets of paper, wherein these stop surfaces have ventilated areas and airtight areas, these areas being constructed sequentially to each other along the direction of falling of the single sheet of paper, and on at least two adjacent stacking sides, the ventilated and / or airtight areas are arranged in at least substantially the same horizontal position.

[0005] According to DE102019125807B3, a paper receiving device having a stacking support for receiving a stack of single sheets of paper is known, wherein a stacking lifting drive acts on a traction mechanism to move the stacking support, and a further drive is provided that acts on the traction mechanism to horizontally displace the stacking support.

[0006] DE10146072A1 describes a straightener for placing single sheets of paper onto a stack at a placement rhythm frequency, and a receiving machine equipped with such a straightener for a machine that processes single sheets of paper. The straightener includes a rotating body that rotates according to the operating conditions and generates a vibrating motion.

[0007] DE102022118978A1 discloses a paper receiving device for a sheet-fed processing machine. The receiving device has a stacking carrier that can be vertically moved by a stacking lifting drive, and a conveying system for conveying sheets of paper along a conveying direction to a stacking area and releasing the sheets of paper above the stacking carrier in the stacking area. The conveying system has at least one side edge stop. The side edge stop has two liftable suspended stop elements that are vertically moved by an actuator.

[0008] DE3001356A1 describes a device for laterally aligning sheets in a sheet take-up machine of a machine that processes sheet paper. The device consists of a spring-loaded oscillating plate that can be tilted by means of a drive mechanism and one or more fixed stops.

[0009] US2008 / 0088081A1 discloses an apparatus for aligning single sheets of paper, the apparatus having two pairs of side straighteners arranged in a front stacking area and a rear stacking area.

[0010] A sheet-fed straightener is known from EP1798181A1. The sheet-fed straightener has a vibrating plate device that extends in the working position to near the upper edge of the sheet stack, and the sheet-fed straightener has an actuator device for applying a lifting motion that is substantially normal to the main plane of the vibrating plate device.

[0011] US5,890,713A discloses an apparatus for forming a stack of sheets in the delivery unit of a sheet-fed printing press, the apparatus having a vibrating plate that can be driven to move perpendicular to the side surface of the stack of sheets in a sheet-fed guiding structure consisting of a carrying element and a sheet-fed guiding element arranged thereon, for straightening the edges of the sheets.

[0012] A device for performing side edge alignment is known from US5,054,764A. Summary of the Invention

[0013] The object of the present invention is to provide an alternative paper receiving device for a machine for processing single sheets of paper, the paper receiving device having a stacking carrier that can be vertically moved by a stacking lifting drive device.

[0014] In particular, the stacking process of individual sheets is further improved on machines that process individual sheets with high cutting tolerances or dimensional variations.

[0015] According to the present invention, this objective is achieved by the features of claims 1 and 17.

[0016] The advantages achievable with this invention are particularly evident in the provision of an alternative paper receiving device. Specifically, the stacking process on machines processing single sheets is further improved. A corresponding machine for processing single sheets, particularly a printing press, equipped with such a paper receiving device is also provided.

[0017] In particular, this allows for the flexible processing of single sheets of paper with different cutting tolerance grades. The cost of adjusting the delivery device, and especially adjusting the spacing between the side edge stops, is reduced, and process safety is improved, particularly while maintaining one-time adjustments. Attached Figure Description

[0018] Embodiments of the present invention are shown in the accompanying drawings and will be described in more detail below.

[0019] in:

[0020] Figure 1 The paper receiving device of a machine that processes single sheets of paper with a non-stop operation is shown;

[0021] Figure 2 A view showing the stacking area, which has one side edge stop and another side edge stop along the conveying direction;

[0022] Figure 3 This shows an enlarged perspective view of the side stops, viewed from the stacking area outwards.

[0023] Figure 4 The slider along the side stop is shown when viewed outward from the stacking area. Detailed Implementation

[0024] Figure 1 Preferably, the stacking area of ​​the paper receiving device 01 of a machine that processes single sheets of paper (e.g., a sheet-fed printing press, particularly a sheet-fed offset rotary printing press) is shown in an assembly or series configuration, where processed, such as printed and / or painted, single sheets of paper 33 are placed.

[0025] The present invention is not limited to the paper receiving device 01 of a machine designed for processing single sheets of paper in a printing press, but can be used in all types of single-sheet paper processing machines or as a component thereof.

[0026] In a preferred embodiment, the machine for processing single sheets of paper can be designed as a means for mechanically processing single sheets of paper 33, such as embossing, cutting, or particularly die-cutting, the means having one or more assemblies for mechanically processing single sheets of paper 33, such as at least one die-cutting unit, embossing unit, or cutting unit.

[0027] In an advantageous improvement to the machine, the machine can also be designed as a hybrid machine for machining single sheets of paper 33, having at least one die-cutting or embossing unit and additionally having at least one printing unit located in the substrate or transport path prior to the die-cutting or embossing unit.

[0028] To convey the sheet paper 33 from the final processing station of the machine, particularly the final printing or painting unit, a rotating conveyor system 02 is preferably used, such as a gripper trolley 02 carrying a gripper, which conveys the sheet paper 33 along the conveying direction T to the stacking area with its leading edge fixed. Further preferably, a chain conveyor system is constructed for conveying the sheet paper, having two receiving device chains each guided laterally on the frame of the receiving device 01, with the gripper trolley 02 arranged between these receiving device chains. The gripper trolley 02 is guided, particularly continuously, along the gripper track in the conveying direction T by the receiving device chains to the stacking area or above the receiving device stack 03, where the gripper trolley 02 releases the sheet paper 33 for placement.

[0029] In the paper receiving device 01, sheet guides (not shown) may be arranged below the conveying path, guiding individual sheets 33 along their travel path to the paper receiving device stack 03. These sheet guides preferably have at least a nearly closed surface to facilitate sliding and / or floating guidance of the individual sheets 33. Preferably, the sheet guides may be equipped with nozzle openings, particularly Venturi nozzles, for pneumatic guidance of the individual sheets 33. The machine may also be equipped with a flipping device, and is preferably designed to switch between front-side printing and double-sided printing operation modes. Particularly in the double-sided printing operation mode, an air cushion may be formed between the sheet guides and the individual sheets 33 conveyed thereon.

[0030] In the stacking area of ​​the paper receiving device 01, a stacking support plate 04, which can be vertically moved by a stacking lifting device (not shown), is provided to serve as a stacking carrier 04. The stacking support plate can, for example, be used to support a pallet 05 to receive individual sheets of paper 33 to be received. Above or in the stacking area, particularly above the stacking support plate 04, the gripper of the gripper trolley 02 opens and releases the individual sheet of paper 33, causing it to fall, for example, onto the pallet 05 arranged on the stacking support plate 04 under the action of gravity. Above the paper receiving device stack 03, a blowing mechanism, preferably a blowing frame with an axial flow fan, can be provided to assist the placement movement of the individual sheets of paper 33 released by the gripper trolley 02.

[0031] In the paper receiving device 01, a sheet brake 06 is preferably arranged before the paper receiving device stack 03 relative to the conveying direction T. This sheet brake receives the sheet 33 to be placed from the gripper trolley 02 and, upon release, slows it down from machine speed to placement speed. The sheet brake 06 may, for example, have a pneumatic, rotating, and / or circumferential braking element acting on the underside of the sheet. The decelerated sheet 33 abuts against a stop, particularly the front edge stop 07, and preferably falls onto the pallet 05 or the surface of the paper receiving device stack 03 under the action of compressed air. Here, the falling sheet 33 is preferably guided on the side edge and / or rear edge by the stop surface on the front edge, particularly the front edge stop 07. In this way, a paper receiving device stack 03 consisting of sheets 33 stacked on top of each other is formed on the pallet 05.

[0032] As the paper receiving device stack 03 continuously accumulates on the pallet 05, the stacking support plate 04 is lowered by the stacking lifting drive device, so that each sheet of paper 33 to be placed passes approximately through the same falling section reaching the surface of the paper receiving device stack 03. Here, sensors, preferably for detecting the upper edge of the paper receiving device stack 03 and connected to a common control device, can be arranged to control and adjust the descent movement of the stacking support plate 04. Once the paper receiving device stack 03 reaches a certain height or maximum height, the delivery of the paper receiving device stack 03 can be achieved, for example, without interruption by means of a non-stop device 08. The paper receiving device 01 can also be designed with a logistics system for preferably automatically conveying full and / or empty pallets 05, or it can be designed as a double-layer or multi-layer paper receiving device.

[0033] To achieve non-stop stacking or re-stacking, the non-stop device 08 in the paper receiving unit 01 preferably has an auxiliary stacking carrier, particularly a non-stop roller shutter 09, which can be moved by a non-stop drive device. This non-stop roller shutter 09 can extend into or drive into the stacking area or drop area above the paper receiving unit's stack 03, and can be pulled out or driven out of the stacking area in the direction opposite to the insertion direction. Specifically, the non-stop roller shutter 09, used to catch individual sheets 33 falling during stacking, can extend into the stacking area in the conveying direction T, wherein the individual sheets 33 received by the roller shutter 09 form an auxiliary stack. Here, the non-stop roller shutter 09 is preferably arranged directly below the individual sheet brake 06, and particularly has a separate, not shown in detail, auxiliary stacking lifting device for vertical movement.

[0034] The stacking lifting drive preferably uses a traction mechanism to vertically move the stacking support plate 04. Specifically, this stacking lifting drive includes a shaft coaxially arranged and carrying spaced-apart sprockets or drive pinions, driven by a drive unit, such as an electric motor. A rear lifting chain and a front lifting chain guided by other guide pinions are arranged around the laterally arranged drive pinions, and the front and rear lifting chains are preferably fixed in corner areas on the stacking support plate 04. When the shaft is rotated by the drive unit, particularly the electric motor, the stacking support plate 04 can be vertically moved via the lifting chains. Here, the stacking support plate 04 can be vertically raised and lowered by means of the lifting chains, depending on the operation of the drive unit (e.g., the electric motor) connected to a control device, preferably a machine controller. Here, the four lifting chains move synchronously.

[0035] The paper receiving device 01 or the machine can process single sheets of paper 33 of different specifications, thereby forming paper receiving device stacks 03 of different sizes. For example, during the vertical movement of the stacking support plate 04, such paper receiving device stacks 03 can be received as auxiliary stacks by an auxiliary stacking carrier (not shown) of the non-stop device 08 of the paper receiving device 01, particularly the non-stop roller shutter 09. In particular, during non-stop stacking, such auxiliary stacks are further raised, wherein the auxiliary stacking carrier, particularly the non-stop roller shutter 09, is lowered by an auxiliary stacking lifting device. Thus, uninterrupted processing of single sheets of paper 33 can be achieved in the machine.

[0036] The stacking support plate 04 is preferably guided by at least one vertically arranged guide element for vertical displacement, wherein the guide element is preferably designed as a guide rail. In particular, the stacking support plate 04 may be vertically guided by two spaced vertical guide rails, which are preferably fixed relative to the frame on one side of the paper receiving device stack 03, preferably below the single sheet brake 06.

[0037] Here, the stacking support plate 04 is preferably also horizontally movable or pushable relative to at least one guide element, here two guide rails, and particularly by means of a guide mechanism preferably movable relative to the stacking support plate 04. Preferably, the stacking support plate 04 is horizontally movable transversely to the conveying direction T and is supported or received.

[0038] In the paper receiving device 01, at least one side edge stop 20 is arranged to align the falling single sheets of paper 33 that form the paper receiving device stack 03.

[0039] Preferably, an additional side edge stop 37 is arranged on the side of the stacking area opposite to the side edge stop 20. This additional side edge stop 37 may in particular have a different structure from the side edge stop 20.

[0040] The stack 03 of the paper receiving device formed in the receiving device 01 is guided not only by the side edge stops 20 and 37, but also, in particular, by the front edge stop 07 and the rear edge stop on the sheet brake 06, thereby forming an alignment slot and a placement slot for guiding the falling sheets 33. In order to adjust according to the specifications of the sheets 33 to be placed, it is preferable to adjust the rear edge stop together with the sheet brake 06 along or against the conveying direction T, and to adjust the side edge stops 20 and / or the additional side edge stops 37 laterally to the conveying direction T.

[0041] The side edge stop 20 includes at least one stop element 35 for aligning falling sheets of paper 33 in the stacking area. The stop element 35 has a stop surface 36 and at least one slider 23. The stop surface 36 may be formed by a guide plate or a plurality of interconnected guide plates. The stop surface 36 is arranged wholly or partially above the formed stacking surface.

[0042] The stop surface 36 is arranged at least partially vertically aligned or at an angle of less than 10 degrees to the vertical direction. In particular, the upper section of the stop surface 36 may be arranged at an angle of less than 10 degrees to the vertical direction, preferably between 1 and 9 degrees, while the lower section may be vertically aligned.

[0043] The stop surface 36, and especially the guide plate, are assigned a first drive device, which causes the stop surface 36 to produce a lifting or pivoting motion with a motion component transverse to the transmission direction T.

[0044] The stop surface 36 is preferably designed with at least one notch or slot for receiving the slider 23. The slider 23 may be arranged to pass through the notch or slot. Alternatively, the slider 23 may also be arranged laterally next to the stop surface 36 or between two stop surfaces 36.

[0045] Preferably, the device has two sliders 23, which are arranged at intervals when viewed in the conveying direction T. The advantage of arranging two or more sliders 23 is that a single sheet of paper 33 can be moved without tilting.

[0046] The following description of the paper receiving device 01, using a single slider 23 as an example, also applies to designs with multiple sliders 23.

[0047] The slider 23 is preferably made of flexible plastic or a spring sheet. Similarly, the slider 23 can have a base made of any material and a contact surface formed of flexible plastic.

[0048] A second drive mechanism is assigned to at least one slider 23, which causes the slider 23 to produce a lifting or pivoting motion with a motion component transverse to the conveying direction T. The first and second drive mechanisms are independent of each other, so the stop surface 36 and the slider 23 can be displaced independently of each other.

[0049] According to one embodiment, the stop surface 36 can only move in a straight line along the horizontal direction, wherein the section between the two end positions, i.e. the turning point, is equivalent to the stroke of the movement.

[0050] The stop surface 36 can also be pivotally supported by a pivot axis preferably constructed on the upper region or upper end of the stop surface 36 and oriented in the conveying direction T. The pivot range of the stop surface 36 is preferably in the range of 1 to 45 degrees.

[0051] According to one embodiment, the slider 23 can only move in a straight line in the horizontal direction, wherein the segment between the two end positions, i.e. the turning point, is equivalent to the stroke of the movement.

[0052] Preferably, the horizontal stroke of the slider 23 is in the range of 4 to 6 mm or 5 mm.

[0053] More preferably, the slider 23 is movable between a first end position and a second end position, wherein, in the first end position, viewed horizontally, the slider 23 extends at least partially beyond the stop surface 36 into the stacking area; and in the second end position, the slider 23 does not extend beyond the stop surface 36 into the stacking area. The ability of the slider 23 to move relative to the stop surface 36 between the first and second end positions can be achieved by purely linear motion, such as lifting motion, or by pivoting motion.

[0054] Preferably, a linear guide is formed to guide the slider 23. In particular, when the second drive device is designed as a pneumatic drive device, especially a short-stroke cylinder, the linear guide can be formed by the piston rod of the pneumatic cylinder.

[0055] The slider 23 can also be pivotally supported by a pivot axis preferably constructed on the upper region or upper end of the slider 23, oriented along the conveying direction T. The function of the pivot axis can also be achieved by a solid hinge. The function of the solid hinge is based on the principle of elastostatics and is achieved by making the bending stiffness of one region lower than that of the two adjacent regions. The reduced bending stiffness can be achieved by locally reducing the cross-sectional area.

[0056] The pivot axis of the stop surface 36 and / or the slider 23 is preferably arranged above the formed stack surface.

[0057] Specifically, the slider 23 may also have an elastic actuating element arranged between the second drive unit and the stacking area. Preferably, the actuating element may be designed as a hollow cylinder oriented in the conveying direction T or a hollow prism oriented in the conveying direction T.

[0058] Viewed along the conveying direction T, the active element preferably forms a closed polygonal, circular, or elliptical outer contour, which surrounds a centrally located notch.

[0059] To improve the effect of the slider 23 on the single sheet of paper 33 to be moved, the surface of the slider 23 or the actuating element can be designed to have a higher surface roughness. The surface roughness can be achieved by appropriately contouring the surface and / or constructing bumps or grooves or channels extending along the conveying direction T.

[0060] On the stop surface 36, an additional suspended or pivotable stop surface 39 (also called a stop block) may be constructed to the lower segment of the stop surface 36.

[0061] The first and second drive units are specifically designed to generate lifting or pivoting motions of the stop surface 36 and at least one slider 23, which at least temporarily have opposite motions that are transverse to the transmission direction T.

[0062] According to one embodiment, the stop surface 36 and the slider 23 can move in opposite directions at each moment during their operation phase. In this case, the stop surface 36 and the slider 23 move at the same beat speed, but are not synchronized with each other.

[0063] According to another embodiment, the stop surface 36 and the slider 23 move at different beat speeds.

[0064] An additional side edge stop 37, located on the side opposite to the side edge stop 20 in the stacking area, includes a stop element 35 for aligning falling sheets of paper 33 in the stacking area, wherein the stop element 35 has at least one stop surface 36. The stop surface corresponds to the stop element 35 of the side edge stop 20 in terms of its geometry, arrangement, and displacement capability, except that the stop element 35 does not have a slider 23. Therefore, no notch or slot for the slider 23 is constructed in the stop surface 36 of the stop element 35 of the additional side edge stop 37.

[0065] The additional side edge stop 37 can also perform lifting or pivoting movements in a straight line laterally to the direction of transmission T.

[0066] The working principle of the paper receiving device 01 will be introduced below.

[0067] During the placement process, the sheets 33, decelerated by the sheet brake 06, fall downwards in the stacking or dropping area, forming a collection device stack 03. Here, the falling sheets 33 form a stacking surface, with only a small amount of air escaping between the topmost sheet 33 forming the stacking surface and the adjacent sheet 33. Therefore, the collection device stack 03 is primarily formed by the placed sheets 33, with the topmost sheets 33 still loosely placed, the topmost sheets 33 constituting the stacking surface, while the collection device stack 03 further descends. The design of the side edge stops 20 and additional side edge stops 37 in the collection device 01 specifically ensures that the upper section of the stop surface 36, particularly the guide plate, is preferably arranged entirely or partially above the formed stacking surface, i.e., above the plane in which the sheets 33 form the collection device stack 03. During the operation of the paper receiving device 01, the stacking process is achieved as follows: individual sheets of paper 33 fall in a loose sequence through the stop surface 36 area of ​​the side edge stop 20 and another side edge stop 37, and are aligned laterally by the stop surface 36 and the slider 23 that performs lifting or pivoting movements. This process can be assisted by the vibration movement of the stop surface 36.

[0068] For both single sheets 33 with the maximum width considering the cutting tolerance and single sheets 33 with a width smaller than the maximum width, the single sheets 33 can be reliably laterally aligned.

[0069] Adjust the side edge stop 20 and the other side edge stop 37 so that the minimum distance between each stop 36 is at least equal to the maximum width of the single sheet of paper 33 to be placed.

[0070] During the free flight phase, the falling sheet 33 is pushed toward the other side along the stop surface 36 of the stop 37 by one or more sliders 23, and aligns on the other side along the stop surface 36 of the stop 37.

[0071] The specification fluctuation F is visible on the side of the side edge stop 20 at the stack 03 of the paper receiving device.

[0072] List of reference numerals

[0073] 01 Paper collection device

[0074] 02 Conveyor System, Grab Trolley

[0075] 03 Paper receiving device stacking

[0076] 04 Stacking bearing plate, stacking carrier

[0077] 05 pallet

[0078] 06 Single-sheet paper brake

[0079] 07 Front edge stop

[0080] 08 Non-stop device

[0081] 09 Non-stop roller shutter

[0082] 10-

[0083] 11-

[0084] 12-

[0085] 13-

[0086] 14-

[0087] 15-

[0088] 16-

[0089] 17-

[0090] 18-

[0091] 19-

[0092] 20 Side Edge Stop

[0093] twenty one-

[0094] twenty two-

[0095] 23 sliders

[0096] twenty four-

[0097] 25-

[0098] 26-

[0099] 27-

[0100] 28-

[0101] 29-

[0102] 30-

[0103] 31-

[0104] 32-

[0105] 33 single sheets of paper

[0106] 34-

[0107] 35 stop element

[0108] 36 stops

[0109] 37. Additional side edge stops

[0110] 38-

[0111] 39 Suspended, pivotable stop surfaces

[0112] T transmission direction

[0113] F specification fluctuations

Claims

1. A paper receiving device (01) for a machine for processing single sheets of paper, the paper receiving device comprising: a stacking carrier (04) capable of vertical displacement by a stacking lifting drive device, and a conveying system (02) for conveying single sheets of paper (33) in a conveying direction (T) to a stacking area and releasing single sheets of paper (33) in the stacking area above the stacking carrier (04), wherein, The device is provided with at least one side edge stop (20), the side edge stop having at least one stop element (35) for aligning falling single sheets of paper (33) in a stacking area, wherein the stop element (35) has at least one stop surface (36) and at least one slider (23), wherein the stop surface (36) is provided with a first drive device that realizes the lifting or pivoting movement of the stop surface (36) so as to align the single sheets of paper (33) laterally by a motion component pointing transversely to the conveying direction (T), and the at least one slider (23) is provided with a second drive device independent of the first drive device that realizes the lifting or pivoting movement of the slider (23) so as to align the single sheets of paper (33) laterally by a motion component pointing transversely to the conveying direction (T), characterized in that the stop surface (36) is constructed with at least one notch or slot for the at least one slider (23), and the at least one slider (23) is configured to pass through the notch or slot.

2. A paper receiving device (01) for a machine for processing single sheets of paper, the paper receiving device comprising: a stacking carrier (04) capable of vertical displacement by a stacking lifting drive device, and a conveying system (02) for conveying single sheets of paper (33) along a conveying direction (T) to a stacking area and releasing single sheets of paper (33) in the stacking area above the stacking carrier (04), wherein, The device is provided with at least one side edge stop (20), the side edge stop having at least one stop element (35) for aligning falling sheets of paper (33) in a stacking area, wherein the stop element (35) has at least one stop surface (36) and at least one slider (23), wherein the stop surface (36) is provided with a first drive device that realizes the lifting or pivoting movement of the stop surface (36) so as to align the sheets of paper (33) laterally by a motion component pointing transversely to the conveying direction (T), and the at least one slider (23) is provided with a second drive device independent of the first drive device that realizes the lifting or pivoting movement of the slider (23) so as to align the sheets of paper (33) laterally by a motion component pointing transversely to the conveying direction (T), characterized in that the at least one slider (23) has a rough surface, the rough surface being formed by contouring the surface and / or constructing protrusions or grooves or channels extending along the conveying direction (T).

3. A paper receiving device (01) for a machine for processing single sheets of paper, the paper receiving device comprising: a stacking carrier (04) capable of vertical displacement by a stacking lifting drive device, and a conveying system (02) for conveying single sheets of paper (33) along a conveying direction (T) to a stacking area and releasing single sheets of paper (33) in the stacking area above the stacking carrier (04), wherein, At least one side edge stop (20) is provided, the side edge stop having at least one stop element (35) for aligning the falling single sheet of paper (33) in the stacking area, wherein the stop element (35) has at least one stop surface (36) and at least one slider (23), wherein the stop surface (36) is provided with a first driving device, the first driving device realizing the lifting or pivoting movement of the stop surface (36) so as to cause the single sheet of paper (33) to move laterally through a motion component pointing transversely to the conveying direction (T). The at least one slider (23) is equipped with a second drive device independent of the first drive device, the second drive device realizing the lifting or pivoting motion of the slider (23) so as to align the single sheet (33) laterally by a motion component pointing laterally to the conveying direction (T), characterized in that a side edge stop (20) is constructed on one side of the stacking area, and another side edge stop (37) is constructed on the opposite side of the stacking area, and only the side edge stop (20) has a slider (23).

4. The paper receiving device (01) according to claim 1, 2 or 3, characterized in that, The first drive device and the second drive device are designed to generate lifting or pivoting motion of the stop surface (36) and the at least one slider (23), the lifting or pivoting motion including at least temporarily transverse to the direction of transmission (T) and opposite in direction.

5. The paper receiving device (01) according to claim 1, 2 or 3, characterized in that, The first drive unit and the second drive unit are designed to generate opposite lifting or pivoting movements of the stop surface (36) relative to the at least one slider (23).

6. The paper receiving device (01) according to claim 1, 2 or 3, characterized in that, The second drive device is a pneumatic drive device and / or formed by a short-stroke cylinder.

7. The paper receiving device (01) according to claim 1, 2 or 3, characterized in that, The slider (23) is movable between a first end position and a second end position, wherein, in the first end position, when viewed from the horizontal direction, the slider (23) extends at least partially beyond the stop surface (36) into the stacking area, and in the second end position, the slider (23) does not extend beyond the stop surface (36) into the stacking area.

8. The paper receiving device (01) according to claim 1, 2 or 3, characterized in that, The at least one slider (23) has a solid hinge.

9. The paper receiving device (01) according to claim 1, 2 or 3, characterized in that, The at least one slider (23) is made of flexible plastic or spring sheet, or has a contact surface made of flexible plastic.

10. The paper receiving device (01) according to claim 1, 2 or 3, characterized in that, The at least one slider (23) is implemented with a horizontal stroke in the range of 4-6 mm or exactly 5 mm.

11. The paper receiving device (01) according to claim 1, 2 or 3, characterized in that, The at least one slider (23) has a pivot axis oriented along the conveying direction (T) and the pivot axis is arranged above the formed stack surface.

12. The paper receiving device (01) according to claim 1, 2 or 3, characterized in that, The stop surface (36) is at least partially arranged along the vertical direction or at an angle of less than ten degrees to the vertical direction.

13. The paper receiving device (01) according to claim 1, characterized in that, The at least one slider (23) has a rough surface, which is formed by contouring the surface and / or constructing protrusions or grooves or channels extending along the conveying direction (T).

14. The paper receiving device (01) according to claim 1 or 2, characterized in that, A side edge stop (20) is constructed on one side of the stacking area, and another side edge stop (37) is constructed on the opposite side of the stacking area, and only the side edge stop (20) has a slider (23).

15. The paper receiving device (01) according to claim 1, 2 or 3, characterized in that, The stop surface (36) is formed by a guide plate, and / or the stop surface (36) is arranged above the formed stacking surface.

16. A machine for processing single sheets of paper having a paper receiving device (01), said paper receiving device being the paper receiving device according to claim 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14 or 15.

17. The sheet-processing machine with a paper receiving device (01) according to claim 16, wherein the sheet-processing machine is designed as a printing press or a die-cutting machine.

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