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AssigneeMAN Roland Druckmaschinen AG
InventorsBernd Lindner, Nikola Pupic, Helmut Schild, Berthold Seib
Estimating the term…
A magazine for the automated changing of printing plates of a sheet-fed offset printing machine. The magazine includes a guiding apparatus which can be put into place on the plate cylinder for purposes of conveying used printing plates out of the plate cylinder and for feeding new printing plates to the cylinder. The guiding apparatus may be formed by a sheet-metal profile. Provision is made of further guiding surfaces and a holder so that the used printing plate may be locked by the holder. An operator then only need pull the plate a short distance out of the gripping region of a leading edge clamping rail. Stops are provided for a printing plate so that the new printing plate can be deposited on the stops. By virtue of putting the guiding apparatus into place, the new printing plate is shifted toward the plate cylinder and can be fed into the front clamping rail by the operator.
An apparatus for the automated changing of printing plates in a printing machine having a plate cylinder, the apparatus being used for feeding a new printing plate to and in picking up an old printing plate from the plate cylinder, the apparatus comprising, in combination:a guard that is vertically diplaceable and disposable in front of the printing machine, the guard including first and second slots located adjacent an upper end of the guard for feeding in and feeding out the new and used printing plates, respectively, means for storing a new printing plate in a standby position, a plate guiding apparatus and a means for moving the plate guiding apparatus between an inactive position spaced from the cylinder and an active position adjacent the cylinder, the plate guiding apparatus having means for guiding the new printing plate in the standby position substantially tangentially to the circumference of the cylinder when the plate guiding apparatus is in said active position, said storing means comprising stop means disposed on said guard, a new printing plate being fed in through said first slot resting on said stop means when said plate guiding apparatus is in said inactive position and being moved off of said stop means and toward said plate cylinder by said plate guiding apparatus as said plate guiding apparatus is moved toward said active position.
Dependencies are inferred from the claim text.