PRINTING PLATE HOLDING APPARATUS

摘要

A printing plate holding apparatus is provided which during a high speed printing operation reduces vibrations and noises caused in a groove for having a grip leading end and a grip trailing end of a printing plate inserted therein, which can fasten the printing plate with greater certainty, and which is suitable for the printing plate to be held securely on such as a sleeve cylinder whose weight reduction is demanded.;It is a printing plate holding apparatus in which a printing plate 5 wound on a plate cylinder 2 is to be held securely thereon in a rotary press, the apparatus having a plate insertion groove 4 formed on an outer peripheral surface of the plate cylinder 2 and extending axially of the plate cylinder 2 for receiving a grip leading end 5a and a grip trailing end 5b of the printing plate 2, and comprising a printing plate retainer plate 6 and a tap bolt 7 for bringing both widthwise lateral end portions of the grip leading and trailing ends 5a and 5b of the printing plate into overlapping each other in the plate insertion groove 2 and for pressing and fastening them against a constraint surface 4b with which the grip trailing end 5b is in contact, in the plate insertion groove 4.

主权项

1. A printing plate holding apparatus in which a printing plate wound on a plate cylinder is held securely thereon in a rotary press, comprising: a plate insertion groove formed on an outer peripheral surface of the plate cylinder and extending axially of the plate cylinder for having a grip leading end and a grip trailing end of the printing plate inserted into the plate insertion groove; and a printing plate retainer plate and a tap bolt for bringing both widthwise lateral end portions of the grip leading and trailing ends of the printing plate into overlapping each other in said plate insertion groove and for pressing and fastening them against a constraint surface with which the grip trailing end is in contact in said plate insertion groove.