Anilox printing unit

Abstract

An anilox printing unit contains an engraved roller, an ink applicator roller, a first cylinder and a second cylinder as elements. At least one of the elements is a cambered or quasi-cambered element. The ink applicator roller is preferably the element. Such a configuration of the element ensures a high quality inking process.

Description

BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1 is a diagrammatic, side view of a printing press having an anilox printing unit according to the invention;

FIGS. 2A-2D are diagrammatic, sectional views of different exemplary embodiments of a cambered or quasi-cambered ink applicator roller of the anilox inking unit shown in FIG. 1; and

FIG. 3 is a diagrammatic illustration of different press strips of the anilox inking unit shown in FIG. 1.

Claims

1. An anilox printing unit, comprising: elements including an engraved roller, an ink applicator roller, a first cylinder, and a second cylinder, at least one of said elements selected from the group consisting of a cambered element and a quasi-cambered element.

2. The anilox printing unit according to claim 1, wherein said cambered element and said quasi-cambered element each have an axial center and axial ends, said cambered element and said quasi-cambered element are thicker by from 0.05 millimeter to 0.30 millimeter at said axial center than at said axial ends.

3. The anilox printing unit according to claim 1, wherein said quasi-cambered element has conical ends which bring about a quasi-cambered shape, said quasi-cambered element has an axial overall length and said conical ends in each case having an axial section length which is at least 10% and at most 30% of said axial overall length.

4. The anilox printing unit according to claim 1, wherein said cambered element forms a convex press strip together with another one of said elements under operating load.

5. The anilox printing unit according to claim 4, wherein one of said cambered element and said quasi-cambered element forms a further convex press strip together with a further one of said elements under operating load.

6. The anilox printing unit according to claim 1, wherein said cambered element or said quasi-cambered element is the only one.

7. The anilox printing unit according to claim 1, wherein said ink applicator roller is said cambered element or said quasi-cambered element.

8. The anilox printing unit according to claim 7, wherein said ink applicator roller has a basic body and a rubber blanket clamped onto said basic body.

9. The anilox printing unit according to claim 8, further comprising a clamping device for clamping said rubber blanket; andwherein said basic body has a cylinder channel formed therein, said clamping device disposed in said cylinder channel.

10. The anilox printing unit according to claim 8, wherein said basic body is one of cambered and quasi-cambered.

11. The anilox printing unit according to claim 8, wherein said rubber blanket is one of cambered and quasi-cambered.

12. The anilox printing unit according to claim 8, further comprising an underlay, selected from the group consisting of a cambered underlay and a quasi-cambered underlay, disposed between said basic body and said rubber blanket.

13. The anilox printing unit according to claim 1, wherein said first cylinder is a printing form cylinder and said second cylinder is a blanket cylinder.

14. The anilox printing unit according to claim 1, wherein only one of said elements is selected from the group consisting of said cambered element and said quasi-cambered element.

15. A printing press, comprising: at least one anilox printing unit containing elements including an engraved roller, an ink applicator roller, a first cylinder, and a second cylinder, at least one of said elements being selected from the group consisting of a cambered element and a quasi-cambered element.