| 摘要 |
PURPOSE:To prevent all the members and units from damages, in a water supply device for a printing machine, by operating revolution of a water supply roller, revolution of a volume adjusting roller and ON-OFF motion of a wetting roller at a fixed condition. CONSTITUTION:Interlocked select switches SS1 and SS2 are turned ON to upper positions to rotate a block 1. When a switch S is turned ON, a relay R1 is operated to make a water pump 25 supply a water vessel 8 with water. And then, when a push button switch A1 is turned ON, a relay R2 is operated to turn a water supply roller 5. When, a certain period of time is elapsed after a timer relay T1 started operating,a water film is formed on a water volume adjusting roller 6, a relay R2 of the roller 6 starts operating, and thereby a cylinder 23 is operated to move the rolle 6 and put it on a roller 7. And, a timer relay T2 is operated, and after a certain period of time, a water film is formed on the roller 7. When a push button switch A3 is turned ON, a relay R4 starts operating, and thereby a cylinder 17 is operated to put a water applying roller 3 on the block 1. |
