Delivery device for flat sheets in rotary printing machines has control body associated with rotating transfer element and controlling underpressure and pressure impulse to take up and release sheets of different thickness

摘要

The delivery device includes a control body (15) associated with the rotating transfer element (9) which is connectable to an underpressure source (39) and pressure source for transferring the sheets from the transport elements (3, 4). The control body generates the underpressure in the transfer area and generates a pressure impulse or pressure compensation in the release area. The control body is fixed on the housing and has an oblong hole shaped opening (16) so that the underpressure can be produced.