Patent ID: 7748318
Filing Date: 2010-07-06
Classification: B41F,B41P,Y10S

Abstract:
1. A multi-color rotary printing machine, comprising: one printing plate support each assigned to colors to be transferred onto a printing plate, said printing plate support supporting the printing plate and being attached to a mandrel or a cylinder of the rotary printing machine in order to transfer a print image onto a print substrate; and register devices that determine a peripheral position and an axial position of the printing plates with respect to one another, the register devices including sensors that determine the peripheral and the axial positions of the printing plate support in the printing machine and the register devices providing information regarding the peripheral and the axial positions of the printing plate support before, at the start of, or during a print process in conjunction with the sensors, based on which control signals are provided, the register devices including a control device with which control signals are generated based on the peripheral and the axial positions of the printing plate support determined by the sensors and with which drives of the mandrels or the print cylinders are controllable using said control signals such that at least one of the peripheral position and the axial position of the mandrels or the print cylinders in relation to one another is changed and a register accuracy of the print increases, each printing plate support including at least one information carrier that includes a sequence of magnetizable individual elements from which information is removed using the sensor, the information that is read out being automatically suitable for determining relative peripheral and axial positions of the printing plate support on the mandrel or on the print cylinder of the rotary printing machine, and the information carrier being arranged outside the mandrel and between the print image and an edge of the printing plate support that is turned toward a front end of the mandrel or of the print cylinder.