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DE-102022105619-B4 - Arrangement and method for processing leaf-shaped material

DE102022105619B4DE 102022105619 B4DE102022105619 B4DE 102022105619B4DE-102022105619-B4

Abstract

Cutting arrangement (10) for processing a stack (40) of sheet-shaped material, such as paper, or at least a part thereof, comprising at least one transport level, in particular a rear table (22) and/or a front table (20) associated with a cutting line, and at least one handle (33, 100, 200), such as a gripping element (33) and/or a stop (180, 280), for grasping and/or moving the stack (40) or the part thereof, characterized in that a top surface of the transport level is formed from one or more stator modules (28, 30) of a planar drive system generating electromagnetic fields, or has one or more stator modules of a planar drive system, in that at least one rotor (32, 34, 36, 132) having a permanent magnet is movable on the transport level by means of the at least one stator module (28, 30) suspended above the transport level. 232) is arranged and that the handle (33, 100, 200) extends from the runner (32, 34, 36, 132, 232) or is designed as a runner (32, 34, 36, 132, 232).

Inventors

  • Georg Philipp Reiter
  • Berthold Schmitt

Assignees

  • BAUMANN MASCHINENBAU SOLMS GMBH & CO.KG

Dates

Publication Date
20260513
Application Date
20220310

Claims (14)

  1. Cutting arrangement (10) for processing a stack (40) of sheet-shaped material, such as paper, or at least a part thereof, comprising at least one transport level, in particular a rear table (22) and/or a front table (20) associated with a cutting line, and at least one handle (33, 100, 200), such as a gripping element (33) and/or a stop (180, 280), for grasping and/or moving the stack (40) or the part thereof, characterized in that a top surface of the transport level is formed from one or more stator modules (28, 30) of a planar drive system generating electromagnetic fields, or has one or more stator modules of a planar drive system, in that at least one rotor (32, 34, 36, 132) having a permanent magnet is movable on the transport level by means of the at least one stator module (28, 30) suspended above the transport level. 232) is arranged and that the handle (33, 100, 200) extends from the runner (32, 34, 36, 132, 232) or is designed as a runner (32, 34, 36, 132, 232).
  2. Cutting arrangement (10) according Claim 1 , characterized in that the top surface of both the rear and front tables (20, 22) consists of or comprises one or more stator modules (28, 30) and that preferably the front and rear tables (20, 22) are connected via a side table (24), the top surface of which is preferably formed by one or more stator modules (28, 30).
  3. Cutting arrangement (10) according Claim 1 or 2 , characterized in that the handle (33, 100, 200) is a pair of pliers (33, 100, 200) and that the arrangement has at least two pairs of pliers (33, 100, 200), each pair of pliers (33, 100, 200) originating from or being a separate runner (32, 34, 36, 132, 232).
  4. Cutting arrangement (10) according to at least one of the preceding claims, characterized in that the handle (132, 232) is actuated for opening and/or closing by means of a pneumatic cylinder (146), an electric drive or by means of a stationary actuating device (300).
  5. Cutting arrangement (10) according to at least one of the preceding claims, characterized in that at least in the rear table (22) a recess is provided, set back from the plane spanned by the stator modules (30), for receiving a lower jaw (134, 234) of a pair of pliers (33, 100, 200) as a gripping element (33, 100, 200) such that a clamping surface of the lower jaw is aligned with the plane.
  6. Cutting arrangement (10) according to at least one of the preceding claims, characterized in that a stator module (28, 30) or several stator modules (28, 30) are designed to be height-adjustable for forming the recess.
  7. Cutting arrangement (10) according to at least one of the preceding claims, characterized in that the stator module (28, 30) has a rectangular shape, square shape, L-shape or ring or ring section shape in top view.
  8. Method for processing and/or handling or transporting a stack (40) of sheet-shaped material, such as paper, or a part thereof, on a transport plane in a cutting arrangement (10), comprising a rear and/or front table (20, 22) and at least one handle (33, 100, 200) gripping and/or pushing the stack (40) or part thereof, such as a gripping element (33, 100, 200), a tong (33, 100, 200), or a stop (180, 280), which is moved along the transport plane, such as the rear and/or front table (20, 22), characterized in that the handle (33, 100, 200) is moved along the transport plane by means of a planar drive system comprising at least one stator module (28, 30) and at least one runner (32, 34, 36, 132, 232). is moved hovering above this, with the handle (33, 100, 200) originating from or being the runner (32, 34, 36, 132, 232).
  9. Procedure according to Claim 8 , characterized in that as a handle (33, 100, 200) a clamp (33, 100, 200) with lower and upper jaw (134, 136, 234, 236) is used and that, for the alignment of the stack (40) or its part contacting upper surface of the lower jaw to the surface of the transport plane, such as the rear and/or front table (20, 22), at least a recess is formed in it or at least a stator module (28, 30) is lowered.
  10. Procedure according to Claim 8 or 9 , characterized in that the pliers (33, 100, 200) are actuated by means of compressed air, by interaction with an actuating element (268) originating from a stationary actuating device (300) or electrically.
  11. Procedures according to at least one of the Claims 8 until 10 , characterized in that compressed air is released from the lower jaw (135) of the tongs (100) to generate an air cushion below the stack (40) or part thereof.
  12. Procedures according to at least one of the Claims 8 until 11 , characterized in that , to perform a circumferential cut of the stack (40) or the part thereof, the stack (40) or the part thereof is gripped by the gripping element (33) extending from the runner (32) on one side (38) of the stack (40) or the part thereof, and the further sides (42, 44, 46) are trimmed by moving the runner (32) with the gripping element (33) on the rear table (22), that after trimming the last untrimmed side of the stack (40) or the part thereof, it is fixed by means of a clamping bar (18) of the cutting arrangement (10), then the gripping element (33), with the lower jaw of the gripper (33) remaining in place, is moved between the stack (40) or the part thereof and the rear table to the side (44) running diametrically opposite to the previously clamped side, and holds the stack (40) or the part thereof by closing the gripper (33), that then by moving the runner (32) the untrimmed side (38) is aligned to the cutting line and the side is trimmed, and then strips (48, 66) of the stack (40) or part thereof are cut by adjusting the runner (32) towards the cutting line.
  13. Use of a planar drive system with an electromagnetic field generating stator module (28, 30) and a rotor (32, 34, 36, 132, 232) containing a permanent magnet which is movable by means of this floating above the stator module (28, 30) for moving a stack (40) of sheet-shaped material or a part thereof in a cutting arrangement (10).
  14. Use according Claim 13 with one or more features of Claims 1 until 12 .

Description

The invention relates to a cutting arrangement for processing a stack of sheet-shaped material, such as paper, or at least a part thereof, comprising at least one transport level, in particular a rear table and/or front table associated with a cutting device, and at least one handle, such as a gripping element and/or stop, for grasping and/or moving the stack or the part thereof. The invention also relates to a method for processing and/or handling or transporting a stack of sheet-shaped material, such as paper, or a part thereof, on a transport plane in a cutting arrangement, comprising a rear and/or front table and at least one handle, such as a gripping element like pliers or a stop, which grasps and/or pushes the stack or part thereof and is moved along the transport plane, such as the rear and/or front table. Manual intervention is still common in cutting systems for processing stacks of sheet-like materials. Robot-assisted systems are also known, such as the... DE 10 2018 108 555 A1 , the DE 199 14 580 A1 , the EP 2 886 220 A1 or the DE 10 2020 111 448 A1 can be seen from this. Even though the use of robots offers significant advantages, especially compared to current technology requiring manual intervention, special safety precautions must be taken to prevent users from being endangered by the robot's movements. Additional space may also be required for the robot. The DE 10 2006 033 575 A1 A device for positioning stacked, sheet-like processing materials on the worktable of a machine tool is described. A positioning unit is provided for positioning a stack on the rear table; this unit is movable by means of an electromagnetic linear drive consisting of a rotor and stator. To be able to move leaf-shaped material on a machine table, the DE 103 31 609 A1 a positioning unit is provided which can be adjusted via drive elements such as racks and pinions. The present invention is based on the objective of providing an arrangement for processing, handling, or transporting a stack of sheet-shaped material, which can be designed to save space and offers highly precise processing capabilities. A fully automated process sequence should optionally be possible. To solve the problem, the invention essentially provides, with regard to the arrangement, that the top of the transport plane is formed from one or more stator modules of a planar drive system generating electromagnetic fields, or has one or more stator modules of a planar drive system, that at least one runner having a permanent magnet is arranged on the transport plane and is movable above the transport plane by means of the at least one stator module on the transport plane, and that the handle extends from the runner or is designed as a runner. The invention is explained below in connection with a cutting arrangement comprising a front and/or rear table, between which a cutting line runs, without this being intended to impose any limitations. Therefore, front and rear tables are also to be understood as synonyms for transport level. According to the invention, an arrangement, in particular a cutting arrangement, is proposed in which the principle of magnetic levitation technology is applied by generating an electromagnetic field on the surface of the rear and/or front table, in particular both the rear and front table, by means of the stator module(s), by means of which the runners, which can also be referred to as movers or shuttles and in which permanent magnets are integrated, are moved levitating and freely movable above the table surface in order to move a stack of sheet-shaped material to be processed and/or a part thereof and to align it with a cutting line, for example to carry out a circumferential cut and/or to cut the stack or part thereof into strips and these optionally into blanks. Thanks to magnetic levitation technology, specifically the planar drive system, the runner(s) can move not only two-dimensionally above the surface, but also rotate, tilt, and raise/lower, essentially enabling movement across six degrees of freedom. The size of the runners, and the ability to connect them in a row, allows for optimization of load capacity and footprint. All components required for the generation and regulation of the electromagnetic field Components such as coil groups, associated power electronics, position sensing, and power supplies, including communication components, can be integrated into the stator modules. A plastic film, a glass disc, or non-magnetic stainless steel can be applied to the surface. Each runner can contain a unique identifier stored within it. A transport system is provided that operates with high precision and is freely movable depending on the generated electric fields. The stator modules define the movement of the rotors along desired paths. In particular, the invention is characterized in that the upper surface of both the front and rear tables is formed by stator modules generating electromagnetic fields, which can be