Impression cylinder cleaning device for printing machine

Claim 1

A printing machine having an impression cylinder cleaning device comprising: a cleaning mechanism having a cleaning tank, a group of rollers and auxiliary frames, said group of rollers being rotatably supported by said auxiliary frames and said rollers being in contact with one another, said group of rollers including a cleaning roller; main frames for rotatably supporting said auxiliary frames; a first lever for rotating said auxiliary frames relative to said main frames so that said cleaning roller is brought into or out of engagement with an impression cylinder of said printing machine by operating said first lever; a printing machine frame having a window formed therein below said impression cylinder; a plurality of guide bars, one of said guide bars extending below said window supported by said printing machine frame; a bracket coupled to said printing machine frame adapted to receive a portion of said main frame; a shaft and a second lever coupled to said shaft, said shaft being coupled to said printing machine frame for detachably positioning said cleaning mechanism below said impression cylinder; and a cleaning mechanism positioning device having a first adjusting screw adapted to support a lower edge of one of said main frames, a lifting lever having one end pivotally secured to said printing machine frame and said first adjusting screw being threadably engaged with the other end thereof so that said portion of said main frame is fixedly abutted against a lower surface of said bracket or released therefrom; and an arm fixedly secured to said shaft at one end and rotatably coupled through a link to said lifting lever.