Automatic suction control for turning drums of printing machines

摘要

The suction member (4) is guided under the periphery of the turning drum through a gear driven by the impression cylinder set in front of the turning drum and is supplied to the gripper system. The suction member is fixedly associated witH the rolling gear wheel (14) of a rolling gear (14,18). The fixing wheel (14) of the roller gear can be associated rotationally secured with the sheet turning gripper (3) or with the turning drum. The sheet turning gripper comprises the suction member and gripper tongue (5).