Patent ID: 7083167
Filing Date: 2006-08-01
Classification: B65H

Abstract:
1. A method for aligning individually moved sheet-shaped materials comprising the steps of: a) accepting the sheet-shaped material from a first transport unit using a first frictional wheel (A) and a second frictional wheel (B), wherein the first and second frictional wheels (A, B) are independently driven; b) rotating the sheet-shaped material in a first phase in a first direction of rotation by controlling the angular velocities of the first frictional wheel (A) and of the second frictional wheel (B), wherein at the beginning and end of the first phase the angular velocities of the first and second frictional wheels (A, B) are about the same; c) rotating the sheet-shaped material in a second phase in a second direction of rotation opposing the first one by controlling the angular velocities of the first frictional wheel (A) and of the second frictional wheel (B), wherein at the beginning and end of the second phase the angular velocities of the first and second frictional wheels are about the same; d) delivering the aligned sheet-shaped material to a second transport unit.