AXIALLY DISPLACEABLE ROLLER IN A PRINTING UNIT

摘要

The invention concerns a method for dismounting as well as mounting a replaceable sleeve on a rotatable and radially displaceable roller (1) for a printing unit in a printing machine. The invention furthermore concerns such a printing machine with at least one printing unit, wherein the roller at the ends is provided with bearings (4, 9) arranged in two radially displaceable slides (6, 12) on the printing machine, and where the roller can be released from the printing machine at one end of the roller. The new features of the method and the printing unit according to the invention are that the roller is provided with displacing means, and by these is displaced in its longitudinal direction prior to dismounting a sleeve, whereby the roller is drawn out of engagement with the one fixed and radially displaceable slide, after which the slide and the roller may be displaced radially in relation to eacht other, and whereafter the sleeve is released and dismounted by being drawn off the roller in its longitudinal direction.