Device for clamping and tensioning printing plates

US5325778A · kind A · utility

Assignee

• MAN Roland Druckmaschinen AG · DE

Inventors

• Georg Hartung · Seligenstadt, DE
• Helmut Schild · Rheinböllen, DE

Key dates

• Filing date: Apr 30, 1993
• Grant date: Jul 5, 1994
• Expiry date: Apr 30, 2013

Classification

• Technology area (CPC B): Performing Operations; Transporting
• CPC primary: B41F27/1243
• WIPO field: Textile and paper machines
• WIPO sector: Mechanical engineering

Abstract

A clamping and tensioning rail for the trailing edge of a printing plate is mounted in the cylinder channel of a plate cylinder such that the trailing edge of the printing plate can be introduced in a simple way, without folding, into the gap between an upper and a lower clamping part. The clamping and tensioning rail is mounted pivotably about two pivot axes which are formed, for example, from stops fixed relatively to the cylinder and which interact respectively with an edge and an arcuate recess on the clamping and tensioning rail. Preferably, the clamping and tensioning rail is drawn into a completely open position by the force of a prestressed compression spring and can be pivoted against this force by an actuating shaft via lever arms and straps.