The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Apr. 25, 2000
Filed:
Feb. 01, 1999
Stephan Rudzewitz, Walldorf, DE;
Heidelberger Druckmaschinen Aktiengesellschaft, Heidelberg, DE;
Abstract
A method and device for automatically feeding a printing plate to a plate cylinder of a printing press, includes a draw-in shaft for inserting a printing plate, a leading-edge clamping device on the plate cylinder, the draw-in shaft being positionable on the plate cylinder so that a printing plate therein is insertable by a leading edge thereof into the leading-edge clamping device due to a backward rotation of the plate cylinder, and a control for stopping the backward rotation of the plate cylinder after the leading edge of the printing plate has been inserted into the leading-edge clamping device, for closing the leading-edge clamping device, and for then initiating a forward rotation of the plate cylinder so as to wind the printing plate on the plate cylinder. A method and device for automatically removing a printing plate from a plate cylinder of a printing press, includes a holder on a draw-out shaft for preventing a backwards movement of the printing plate, the control continues a backwards rotation of the plate cylinder until, due to the opening of a leading-edge clamping device and a forward rotation of the plate cylinder and due to the position and arrangement of the draw-out shaft, wherein the end of the draw-out shaft is directed towards the plate cylinder, the printing-plate leading edge is deposited on this end. The method and devices are combinable into one method and one apparatus or combination of devices.