Printing press
AssigneeKomori Corporation
InventorsHiroyuki Suda, Hayato Kondo, Toshinori Kubo
Life of this patent
Estimating the term…
Abstract
A printing cylinder includes a plurality of suction chambers and a masking sheet configured to cover the suction chambers. The masking sheet includes a non-sucking portion which protrudes from the boundary of the suction chambers toward the inside of the suction chambers. A number of through holes are formed in a portion except for the non-sucking portion in the masking sheet. The non-sucking portion exists between the sheet to be printed and the boundary of the suction chamber to be used and the suction chamber not to be used. This can prevent an ink mist from adhering to the printing cylinder.
Claims7
A printing press comprising:
- a printing cylinder configured to suck and convey a sheet as a printing product, and including a plurality of suction chambers opening outward in a radial direction of the printing cylinder, and a masking sheet member arranged outward in the radial direction of the printing cylinder relative to the plurality of suction chambers, configured to cover opening portions of the plurality of suction chambers and including a plurality of through holes, the masking sheet member including a non-sucking portion which extends along a boundary of the plurality of suction chambers and protrudes from the boundary of the plurality of suction chambers toward the inside of the plurality of suction chambers, and the plurality of through holes being formed in a portion except for the non-sucking portion in the masking sheet member and being positioned face-to-face with the plurality of suction chambers;
- an air suction device connected to the plurality of suction chambers and configured to selectively suck air from the plurality of suction chambers;
- and
- an ink device configured to transfer ink to the sheet sucked to the printing cylinder.
Dependencies are inferred from the claim text.