Printing press vibratory feed - has four bar linkages with common driven slide is sliding bearing

摘要

The vibratory feed is for a rotary press printing sheets, having a driving cam actuating a roller-ended lever. The latter has a driving lever for a first four-bar linkage, while a second one is similarly driven by a guide cam. The first and second linkages (10,115) have a common driven slide (9), whose bearing (17) is slid by a drive. The bearing cam be positioned in an eccentric lever (18) moved in opposition to a tension spring (19). ADVANTAGE - High working speed and low rate of wear.