Extension arm for a rotary printing machine comprises a channels, and a spraying device directed toward the printed materials being transported

摘要

Extension arm comprises a first channel (24) which passes a claw feed system on one side in the direction of the deviating region away from the machine, a second channel (25) which passes a claw feed system on one side in the direction of the deviating region close to the machine, and a spraying device (20) directed toward the printed materials being transported. Powder-free air injected into the second channel passes one end of the second channel facing the deviating region close to the machine in the direction of the deviating region away from the machine. Preferred Features: The end of the second channel facing the deviating region close to the machine tapers in the direction of a gripper strip. Inlet slits (34) are assigned to both channels to introduce ambient air.