Blancket drum cleaning apparatus for offset press

Abstract

Abstract PURPOSE: To accomplish ample replenishment of a cleaning liquid by supplying thereof every given revolutions of the bracket drum through a control means adapted to count signals generated each rotation thereof. CONSTITUTION: According to a command signal 30 for the cleaning process, a cleaning roller rotating signal 32 and a cleaning roller holding signal are transmitted while the signal is inputted to an AND gate G1 which receives a timing pulse 31 each rotatio of a brancket drum to send a signal to a N decimal counter C1 each pulse. In response to the roller rotating signal 32 and the roller holding signal 33, the roller 17 rotates in contact with the bracket drum 9. Thus, the cleaning is started. On the other hand, a cleaning liquid feeding signal 34 transmitted every Nth pulse 31 through the counter C1, actuates a bellows bump 22 through a pump solenoid 25 whereby a cleaning liquid in a tank 24 is fed to a plate 11 through conduits 23 and 21 (namely, the cleaning liquid is fed every N rotatin of the brancket drum 9). COPYRIGHT: (C)1980,JPO&Japio

Inventors

• 👤 Katsumi Mizuno
• 👤 Seiji Oka
• 👤 Kazuo Murai

Bibliographic Details