Printing press gear train - has gear taking up backlash in bearing sliding in frame

摘要

The gear train is particularly for driving the vibratory feed of a rotary sheet-printing press, and comprises driving, feed drum and printing cylinder gears. A gear (25) taking up backlash is provided, working in a bearing (26) sliding via a drive in the frame. The bearing can be in an eccentric lever (27) turned in opposition to a tension spring (29). ADVANTAGE - Compact, with low rate of wear and improved quality of printing.