| 摘要 |
Disclosed is a device for transporting printing plates in a processing unit, in which the printing plates are brought from a starting position into a final position on a processing table. The device comprises a pneumatically operated cylinder 2 located above the plane in which the printing plate 8 rests in its starting position on the processing table 1, and at least one pusher-element 7 attached to the actuating rod 5 of cylinder 2, the rod being capable of extension and retraction in the longitudinal direction of the unit. The pusher-element transports the printing plate from the starting position into the final position. In addition, a device 9-11 is provided for raising the pusher-element 7 from a level below the transport plane of the printing plate 8 to a level above the transport plane of the printing plate 8, and for lowering the element in the opposite sense, and a switch S6 is provided, which is to be operated by the end of the pringting plate when the final position is reached and which initiates the reversal of the movement of the actuating rod 5. The device 9-11 for raising and lowering the pusher-element 7 is preferably also a pneumatically operated cylinder 9. A second switch S18 is preferably provided, which is operated by the trailing end of the printing plate when the starting position is reached. This switch initiates the lowering of the pusher-element 7, and the movement of the actuating rod 5 of the cylinder 2 in the transport direction of the printing plate 8, following admission of compressed air to the actuator 2, via a delayed-action valve ZV1. |
