Patent ID: 8123221

Claim:
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, comprising: a gripper apparatus that grabs a forward edge of a piece of flat stock and accelerates the flat-stock piece, and at least one sheet pick-up roller that picks up the accelerated piece of flat stock from the gripper apparatus, whereby the sheet pick-up roller comprises at least one roller gripper effective at a circumference thereof for grabbing the accelerated piece of flat stock, wherein 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, a plurality of 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, a suction conveyor-belt apparatus is provided with at least one suction belt operable to be charged with intake air, and a movement of the roller gripper from the closed position to the open position and the intake-air charging of the suction holes can be controlled so that the piece of flat stock can be transferred, without substantial slipping, from the sheet pick-up roller to the suction belt.