Printing unit, printing press and method of producing labels or self-adhesive labels in a printing press
AssigneeGallus Druckmaschinen GmbH
InventorsDieter Bangel, Thomas Demand
Life of this patent
Estimating the term…
Abstract
A compact printing unit includes a plate cylinder, an impression cylinder, and an ink applicator roller in a printing press, in particular a label printing press. In the printing unit, the plate cylinder is disengageable from cylinders contacting the plate cylinder for the purpose of format variation. The plate cylinder is pivotable about the impression cylinder about a pivot axis which is parallel to the axis of rotation of the impression cylinder and a distance between the axes of rotation of the plate cylinder and the impression cylinder is variable. A printing press and a method of producing labels or self-adhesive labels in a printing press are also provided.
Claims24
A printing unit, comprising:
- a plate cylinder for receiving a printing plate, said plate cylinder having an axis of rotation;
- an impression cylinder having an axis of rotation and forming a printing nip with said plate cylinder for printing on a substrate;
- and
- an ink applicator roller to be engaged by the printing plate received on said plate cylinder for contacting said ink applicator roller;
- said plate cylinder being pivotable about said impression cylinder about a pivot axis, said pivot axis being coaxial with said axis of rotation of said impression cylinder;
- said plate cylinder being disengageable from said impression cylinder and said ink applicator roller for format variation;
- said axes of rotation of said plate cylinder and said impression cylinder being spaced apart by a variable distance, the variable distance and a pivoting movement of said plate cylinder being coupled together for simultaneous movement;
- and
- a single actuating element for carrying out disengagement of said plate cylinder from said impression cylinder and disengagement of said plate cylinder from said ink applicator roller by controlling the simultaneous movement with said single actuating element.
A printing unit, comprising:
- a plate cylinder for receiving a printing plate, said plate cylinder having an axis of rotation;
- an impression cylinder having an axis of rotation and forming a printing nip with said plate cylinder for printing on a substrate;
- and
- an ink applicator roller to be engaged by the printing plate received on said plate cylinder for contacting said ink applicator roller;
- said plate cylinder being pivotable about said impression cylinder about a pivot axis parallel to said axis of rotation of said impression cylinder;
- said plate cylinder being disengageable from said impression cylinder and said ink applicator roller for format variation;
- said axes of rotation of said plate cylinder and said impression cylinder being spaced apart by a variable distance, the variable distance and a pivoting movement of said plate cylinder being coupled together for simultaneous movement;
- and
- a single actuating element for carrying out disengagement of said plate cylinder from said impression cylinder and disengagement of said plate cylinder from said ink applicator roller by controlling the simultaneous movement with said single actuating element.
Dependencies are inferred from the claim text.