Patent ID: 8800445
Filing Date: 2014-08-12
Classification: B41F,Y10S

Abstract:
1. A printing plate cylinder for a printing machine, the cylinder comprising: a cylinder mandrel that is rotatable in the printing machine; a sleeve that is positionable in an axial direction (z) and in a peripheral direction (φ) over at least a portion of the cylinder mandrel; a block that terminates movement of the sleeve in the axial direction (z) at a set position; a male register element associated with the cylinder mandrel; and a female register element associated with the sleeve, a peripheral angular position of the cylinder mandrel and the sleeve with respect to each other being alignable through the male register element and the female register element, the male register element and the female register element being in working connection with each other if the cylinder mandrel and the sleeve are in a set alignment position relative to each other, and the male register element being located adjacent the block and (i) including a flat inclined surface having a uniform inclination configured to slidably engage the sleeve that is to be aligned as the sleeve is moved in the axial direction (z) and (ii) being controlled through the movement of the sleeve, the male register element being controllably movable by movement of the sleeve in the axial direction (z) of the printing plate cylinder, and, once the movement of the sleeve in the axial direction (z) has been terminated by the block at the set position, by movement of the sleeve in the peripheral direction (φ) of the printing plate cylinder.