Plate cylinder positioning method for use during plate change in sheet-fed rotary printing machine, involves adjusting position of rubber cylinder in print-off-position by adjusting stop unit such that plate cylinder reaches target position

摘要

#CMT# #/CMT# The method involves moving a rubber cylinder (2) between a print-on-position and a print-off-position by positioning drives (2.3). A plate cylinder (1) is placed in a preset plate change position by drive gear traction. The rubber cylinder is moved into a position, which is fixed by a stop unit (2.4), in the print-off-position, and deviation between actual and target positions of the plate cylinder is determined during plate change. The position of the rubber cylinder in the print-off-position is adjusted by adjusting the stop unit such that the plate cylinder reaches the target position. #CMT# : #/CMT# An independent claim is also included for a device for positioning a plate cylinder during plate change in a sheet processing machine. #CMT#USE : #/CMT# Method for positioning a plate cylinder during plate change in a sheet processing machine i.e. sheet fed printing press (claimed) such as sheet-fed rotary printing machine. #CMT#ADVANTAGE : #/CMT# The method enables fast and secure correction of an angle position error of the plate cylinder, thus ensuring positioning accuracy of the plate cylinder at the sheet processing machine during plate change with reduced complexity in a cost-effective manner. #CMT#DESCRIPTION OF DRAWINGS : #/CMT# The drawing shows a front view of a printing unit section of a printing press. 1 : Plate cylinder 1.1 : Plate cylinder channel 2 : Rubber cylinder 2.3 : Positioning drives 2.4 : Stop unit.