Printing plate cylinder registration
AssigneeWindmoeller & Hoelscher KG
InventorsUwe Rogge, Dietmar Koopmann, Manfred Loddenkoetter
Life of this patent
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Abstract
A printing plate cylinder for a printing machine has a rotatable cylinder mandrel and a sleeve that is at least partially positionable over the cylinder mandrel. The angular positions of the mandrel and the sleeve are alignable to each other by a male register element which is fixed on one of the two elements to be aligned, and a female register element which is part of the corresponding other element to be aligned. Both the male and female register elements remain in working connection with each other if the elements to be aligned are in the set position relative to each other. At least one of the male and female register elements is controlled by movement of the other element to be aligned.
Claims13
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.
A printing plate cylinder for a printing machine, the cylinder comprising:
- a rotatable cylinder mandrel;
- a sleeve that is movable in an axial direction (z) and in a peripheral direction (φ) relative to the cylinder mandrel so as to be received by the cylinder mandrel;
- a block that terminates movement of the sleeve in the axial direction (z);
- an actuatable 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 so as to provide a working connection therebetween,
- the male register element being located adjacent the block and
- including a flat inclined surface having a uniform inclination configured to slidably engage the sleeve as the sleeve is moved in the axial direction (z), and
- being actuated through movement of the sleeve (i) in the axial direction (z) and (ii) in the peripheral direction (φ) relative to the cylinder mandrel, once the movement of the sleeve in the axial direction (z) has been terminated by the block.
Dependencies are inferred from the claim text.