Device for separating sheet material
AssigneeWincor Nixdorfinternational GmbH
InventorsMathias Lochbichler, Christopher Lankeit, Martin Landwehr, Ludger Hoischen
Life of this patent
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Abstract
A device for separating sheet material has an actuator and a sheet material holder coupled thereto. The actuator is designed for moving the sheet material holder. The sheet material holder is designed for receiving an individual sheet material piece from a sheet material stack in which the sheet material pieces are arranged in a layered manner one above another along a vertical direction. The actuator is designed to set the sheet material holder into an oscillating rotational movement about a rotation axis that lies substantially parallel to the vertical direction, in order to receive the individual sheet material piece from the sheet material stack.
Claims18
A device for separating sheet material, having an actuator and a sheet-material engagement coupled thereto and an engaging head at a distal end of the sheet-material engagement, the engaging head has an elastic material having a hardness of 30 to 95 Shore A for contacting the sheet-material, wherein the actuator is configured for repositioning the sheet-material engagement, and wherein the sheet-material engagement is configured for engaging an individual sheet-material piece from a sheet-material stack in which a multiplicity of sheet-material pieces are disposed in a layered manner on top of one another along a plumb-line direction,
- wherein
- the actuator is configured for setting the sheet-material engagement in an oscillating rotary motion about a rotation axis extending along an angular range of less than 10, where the sheet-material engagement rotates about the rotation axis in a first direction and in a direction opposite the first direction about the rotation axis, and repeats rotating in the first direction and the direction opposite the first direction at a specific frequency greater than 1 kHz while engaged with the individual sheet-material piece from the sheet-material stack;
- and
- the rotation axis lies substantially parallel with the plumb-line direction, so as to engage the individual sheet-material piece from the sheet-material stack.
A method for separating sheet material by means of a device having an actuator and a sheet-material engagement coupled thereto, wherein the actuator is configured for repositioning the sheet-material engagement, and wherein the sheet-material engagement is configured for engaging an individual sheet-material piece from a sheet-material stack in which a multiplicity of sheet-material pieces are disposed in a layered manner on top of one another along a plumb-line direction,
- wherein the method comprises the following steps:
- setting the sheet-material engagement in an oscillating rotary motion about a rotation axis, where the sheet-material engagement repeatedly rotates in an oscillating rotary motion while engaged with the individual sheet-material piece from the sheet-material stack at a specified frequency about the rotation axis in both a first direction and a direction opposite the first direction about the rotation axis, by means of the actuator, to engage the individual sheet-material piece from the sheet-material stack while conveying the individual sheet-material piece from the sheet-material stack along a direction perpendicular to the plumb-line direction,
- wherein the rotation axis lies substantially parallel with the plumb-line direction
- wherein the specified frequency is determined by modeling the sheet-material stack as a monolithic bar having elements corresponding to the multiplicity of sheet-material pieces.
Dependencies are inferred from the claim text.