Apparatus for isolating offset printing plates and removing intermediate paper layers

US4667948A · kind A · utility

Assignee

• Dr. Ing. Rudolf Hell GmbH · DE

Inventors

• Rolf Angelbeck · Kiel, DE
• Reinhard Gesell · Schönkirchen, DE
• Helmut Greve · Neumünster, DE
• Ulrich Henke · Übach-Palenberg, DE

Key dates

• Filing date: Oct 31, 1985
• Grant date: May 26, 1987
• Expiry date: Oct 31, 2005

Classification

• Technology area (CPC B): Performing Operations; Transporting
• CPC primary: B65H2701/1928
• WIPO field: Handling
• WIPO sector: Mechanical engineering

Abstract

Offset printing plates are usually supplied from the manufacturer as a plate stack with intermediate paper layers. For further processing, the plate stack is placed in a magazine cassette. A suction plate lifts a top plate off from the stack and, after removal of the intermediate paper layer by means of blowing air, conducts it for further processing. Also by means of blowing air, the respective upper plates of the remaining stack are isolated, so that they no longer firmly adhere to the stack. Undesired dislocations of the plates thus arising are mechanically corrected.