Printing unit for a rotary web printing machine

摘要

The printing mechanism has a central counter-pressure cylinder supported by both sections (14a,14b) of the printing machine housing (14), via respective cylinder pins (22a,22b) and contacted by at least 2 rubber wetting rollers (4) with associated printing plate cylinders (6). The wetting rollers and/or the printing plate cylinders are supported by floating bearings at one end, when the printing machine is at a standstill, to facilitate replacement of the wetting roller sleeves or the printing plates.