Drawing apparatus and drawing method
AssigneeDainippon Screen Mfg. Co., Ltd.
InventorsToru Kawada, Shiro Kitawaki
Life of this patent
Estimating the term…
Abstract
A conveying unit is disposed so as to be swingable above a recording drum. The conveying unit has a first plate carry-in conveying path and a second plate carry-out conveying path. A punching device is disposed in the plate on the side of a front end of the conveying unit. The plate is conveyed to the punching device through the first conveying path in the conveying unit before being conveyed onto the recording drum. Recording drum positioning holes and printing machine positioning holes are formed at a front end of the plate. The recording drum positioning holes of the plate are respectively fitted on positioning pins provided on an outer peripheral surface of the recording drum.
Claims18
A method of drawing an image on a plate which is used for a printing machine having a positioning portion and mounted on an outer peripheral surface of a cylindrical drum, wherein said drum has a rotary shaft and a positioning portion provided on said outer peripheral surface, comprising the steps of:
- forming in the plate a first fitting portion to be fitted to said positioning portion of said drum and a second fitting portion to be fitted to a positioning portion of the printing machine;
- mounting the plate having said first fitting portion and said second fitting portion formed therein on the outer peripheral surface of said drum;
- and
- drawing an image on the plate on said outer peripheral surface of said drum while rotating said drum around said rotary shaft.
A drawing apparatus for drawing an image on a plate used for a printing machine having a positioning portion, comprising:
- a cylindrical drum having a rotary shaft, an outer peripheral surface on which the plate is mounted, and a positioning portion provided on said outer peripheral surface;
- a driving device for rotating said drum around said rotary shaft;
- a drawing unit for drawing an image on the plate mounted on the outer peripheral surface of said drum;
- and
- a fitting portion forming device for forming in the plate a first fitting portion to be fitted to said positioning portion of said drum and a second fitting portion to be fitted in the positioning portion of the printing machine before the plate is mounted on said drum.
Dependencies are inferred from the claim text.