Apparatus and a method for separating sheet material
AssigneeGAO Gesellschaft fur Automation and Organisation mbH
InventorsWilhelm Mitzel, Karl-Heinz Leuthold, Josef Geier
Life of this patent
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Abstract
A separating apparatus for sheet material in which the sheet material is conveyed in stacks via a stack transporting system to a stack holder including a stack manipulator for effecting selective mechanical manipulation of the stack going through the separation process in the event that a deviation from the proper separation process is detected. In addition, a stack tester may be provided for testing the geometric and physical condition of the stack of sheet material before and during separation. An irregularity occurring during separation can be combatted by instituting a stack manipulation procedure which appears best suitable for automatically eliminating the disturbance of the separation process.
Claims25
In sheet separating apparatus for separating sheet material having variable degrees of geometric and physical condition, including a sheet material stack holding means, a sheet feeding means, a sheet withdrawing means and a stack retaining means, wherein the sheet material is conveyed in stacks in variable physical and geometric conditions via a stack transporting system to the stack holding means up to the stack retaining means, from which the sheet material is separated from the stack by a separation process, fed sheet by sheet to a sheet feeding system leading on further by the interaction of the feeding, withdrawing and retaining means, the improvement comprising first means arranged to rearrange the geometric and physical condition of the stack so that a predetermined geometric and physical condition of the stack is effected by manipulation of the sheet material in the stack during the process of separation;
- a second means for monitoring the separation sequence and detecting a defect in the separation process;
- and a control unit in communication with said first and second means arranged to activate the first means in case of the occurrence of an undue deviation in the separation process.
Dependencies are inferred from the claim text.