Stacking base

Abstract

Stack base (100) for a stack (10) of sheets to be counted, characterized in that the stack base (100) has a plate (20) which includes a liftable part (22).

Description

[0001] The invention relates to a stacking base according to the preamble of claim 1, in particular for use with a counting machine. State of the art

[0002] For stacks containing multiple sheets, such as stacks of banknotes, these sheets must be counted using a counting machine. Sheet-counting devices with vacuum-operated counting discs are known.

[0003] For further processing, such as blank cutting or to check the delivery quantity after blank cutting, the quantity must be counted. The stacks often exhibit a downward or upward curvature. This curvature can result from the sheets being rolled to size before cutting and / or from the printing, e.g., on banknotes or other products, adding thickness to certain areas of the blank through applications or similar means. The sheet usually still has an unprinted cutting margin.

[0004] This cutting edge creates an air gap between sheets in the stack due to the different thicknesses.

[0005] Counting machines with counting discs are used for reliable and rapid counting. These machines determine the number of sheets or reams in a stack, layer, or ream. Depending on the machine's design, a corner or edge of the top or bottom sheet of the stack is drawn against a rotating counting disc using negative pressure or vacuum. This separates the sheet from the next sheet, and it is then guided through a slit to the back of the disc. While the sheet is in the slit, a signal is generated, and the sheet is counted. The counting disc works its way through the stack sheet by sheet. Depending on the disc's divisions, up to six sheets can be drawn in and counted in a single rotation.

[0006] One area of ​​application for counting machines and counting discs is found particularly in the aforementioned security printing, as all the properties of this type of counting are required here: Physical counting of each individual sheet, speed, paper protection, without leaving deformations or markings on the material.

[0007] EP 0 737 936 A1 discloses a counting disc of a sheet counter for sheets arranged in a stack, wherein the counting disc is rotatable and has lugs on its edge in circumferential sections, wherein each circumferential section has a counting opening, a suction trough and a group of suction openings arranged one behind the other, which can be intermittently connected to a vacuum source via suction channels and effect the counting of each sheet, wherein the suction openings are located in the middle of the suction troughs and the sections of the suction channels opening into the suction opening are directed substantially perpendicular to the plane of the disc and to the bottom of the suction trough, and wherein the suction force acts centrally on the suction trough and perpendicular to the bottom of the suction trough.

[0008] A counting device with a counting disc having only one suction and counting section is also known from GB 744 957 A.

[0009] A disadvantage of the known devices is that, due to the aforementioned reasons, particularly the curvature of the sheets and / or the varying thickness of the sheets / reams, the counting disc cannot suction the sheets / reams. This occurs because the stack exhibits geometric deformations at the corners or edges, either upwards or downwards, so that the horizontal counting disc cannot suction the sheets due to the resulting gap.

[0010] The object of the invention is therefore to provide a design for the stack in such a way that the disadvantages of the prior art, in particular the sloping edges and the curvature of the sheets, are avoided and satisfactory functioning of the counting disc is ensured. Disclosure of the invention

[0011] The invention is disclosed by the features of the main claim. Embodiments and further developments are the subject of the subsequent claims.

[0012] The use of the counting disc requires that the counting disc can lie flat on the sheet or stack of sheets to be counted, so that the operation of suctioning the sheet or sheet with negative pressure or vacuum for the counting function works.

[0013] A basis for the stack of sheets to be counted is therefore revealed by designing a plate or tabletop as a support surface for the stacks of sheets to be printed in such a way that the tabletop is at least divided into two parts and has an area of ​​a liftable part of the tabletop on which the stack of sheets rests and can thereby be lifted.This liftable part of the tabletop, and thus of the stack of sheets, is connected to the horizontally arranged tabletop via a hinge extending transversely to the tabletop, comprising a joint, in such a way that this part can be brought into an inclined position relative to the remaining part of the tabletop at an angle to the horizontal and positioned so that the stack of sheets on the inclined part of the tabletop is lifted so that the gap between the sheets and the counting disc is no longer present and the sheets to be counted lie flat under the counting disc.

[0014] Due to this design of the liftable and reversibly lockable part of the tabletop, the stack of sheets to be counted can be optimally aligned for the counting process.

[0015] Further advantages and advantageous embodiments of the invention can be seen in the following description of the figures, the drawings and the claims.

[0016] An exemplary embodiment of the solution according to the invention is explained in more detail below with reference to the accompanying schematic drawings. It shows: Fig. Figure 1 shows a side view in the direction of view according to the state of the art, and Fig. Figure 2 shows a side view through the device according to the invention.

[0017] In Fig. Figure 1 schematically depicts a stack 10 sheets of paper with sloping edges 12. The sheets are to be printed on. The sheets are to be counted by a counting disc 14. Due to the sloping edges 12, a gap 16 is formed between the sloping edge 12 and the counting disc 14, so that the counting disc 14 cannot pick up the top sheet 18 of the stack 10 sheets.

[0018] Fig.Figure 2 shows the stack 10. A plate in the form of a tabletop 20 is arranged on it. The tabletop 20 has a liftable part 22 which can be raised about a hinge 24, having a joint 26, and is then reversibly positioned in a selected inclined position. For this purpose, the liftable, hinged part 22 can have a locking element. This raises the sheets of the stack 10 arranged on the tabletop 20 and the liftable part 22 so that they lie flat under the counting disc 14, allowing the counting disc to effectively draw the top sheet 18 of the stack 10 from the sheets and thus count it.This causes the entire stack 10 to be raised to the desired height by folding the liftable part 22 of the table top around the joint 26 of the hinge 24, so that the gap 16 disappears and the counting operation can be carried out with the counting disc 14, so that no gap is formed by sloping edges 12.

[0019] All features shown in the description, the following claims and the drawings can be essential to the invention, either individually or in any combination. Reference symbol list 10 stacks 12 sloping edge 14 Counting disc 16 columns 18 top sheet of the stack 20 plates 22 Liftable part plate 24 hinge 26 joint 100 stack base QUOTES INCLUDED IN THE DESCRIPTION

[0000] This list of documents cited by the applicant was automatically generated and is included solely for the reader's convenience. The list is not part of the German patent or utility model application. The DPMA accepts no liability for any errors or omissions. Cited patent literature

[0000] EP 0 737 936 A1

[0007] GB 744 957 A

[0008]

Claims

[1] Stack base (100) for a stack (10) of sheets to be counted, characterized by , that the stack base (100) has a plate (20) which includes a liftable part (22). [2] Stack base (100) according to claim 1, characterized by that the plate (20) is connected to the liftable part (22) via a hinge (24). [3] Stack base (100) according to one of claims 1 or 2, characterized by , that the hinge (24) has a joint (26). [4] Stack base (100) according to one of the preceding claims 2 or 3, characterized by , that the hinge (24) is arranged in a transverse direction to the plate (20). [5] Stack base (100) according to any one of the preceding claims, characterized by , that the liftable part (22) is reversibly arranged in a beveled position. [6] Stack base (100) according to any one of the preceding claims, characterized by , that the plate (20) is a tabletop. [7] Stack base (100) according to any one of the preceding claims, characterized by , that the stack (10) resting on the stack base has a large number of sheets. [8] Stack base (100) according to claim 7, characterized by , that the stack (10) has a top arc (18). [9] Stack base (100) according to one of the preceding claims 7 or 8, characterized by that the stack (10) is arranged partly on the table top (20) and partly on the liftable part (22). [10] Stack base (100) according to any one of the preceding claims 7 to 9, characterized by , that the stack (10) which rests on the liftable part (22) is arranged flat below a counting disc (14). [11] Stack base (100) according to any one of the preceding claims, characterized by , that the liftable part (22) is positioned such that a flat area of ​​the uppermost arc (18) is arranged below the counting disc (14). [12] Stack base (100) according to claim 11, characterized by , that the liftable part (22) is positioned such that a flat area of ​​all subsequent sheets is positioned below the counting disc (14).

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