Apparatus and method for drawing in flat material pieces and in-register transportation of the flat material pieces
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United States of America Patent
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Feb 28, 2012
Grant Date -
Aug 12, 2010
app pub date -
Jul 15, 2008
filing date -
Jul 28, 2007
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A device for pulling in flat-stock pieces and precisely-aligned transporting of the flat-stock pieces at a work station of a machine for processing the flat-stock pieces has a gripper apparatus that grabs a forward edge of a piece of flat stock and accelerates the flat-stock piece, and a sheet pick-up roller that picks up the accelerated piece of flat stock from the gripper apparatus, whereby the sheet pick-up roller has a roller gripper effective at a circumference thereof for grabbing the accelerated piece of flat stock. The roller gripper can move between a closed position in which the piece of flat stock is held fast and an open position in which the piece of flat stock is released. Suction holes operable to be charged with intake air are disposed in a part of a circumference of the sheet pick-up roller following in a direction of rotation behind the roller gripper.
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