Patent ID: 6694879
Filing Date: 2004-02-24
Classification: B41F,B41P

Abstract:
An erasing and cleaning device for printing machine cylinders comprising:a cassette package, said cassette package including a cleaning cloth, and cloth transport means, said transport means including a fresh-cloth roll, a pressure roller for pressing cleaning cloth off-wound from said fresh-cloth roll against a cylindrical surface of a printing cylinder, and a dirty-cloth roll for roll up winding spent cleaning cloth, said cassette package further including a transport device disposed in a cloth travel path between the fresh-cloth roll and the pressure roller, and another transport device disposed in a travel path between the pressure roller and dirty-cloth roll, mechanical gripping means on said transport devices for gripping said cleaning cloth to transport said cleaning cloth, and drive means for synchronously driving said transport devices, wherein said transport devices each comprise a pair of opposed belts, the cleaning cloth traveling being between said opposed belts and a positioning unit, said positioning unit including a running mechanism having a drive for the cassette, said drive being controlled by a computer program so as to execute an intermittent feed of the cleaning cloth and a partial return of the cleaning cloth after a cleaning operation, said positioning unit being permanently affixed as a module in the printing machine for exchangeably securing the cassette in a working position on the printing machine.