Mechanism for the parallel clamping of printing plates on the plate cylinder of printing machines

US4688484A · kind A · utility

Assignee

• MAN Roland Druckmaschinen AG · DE

Inventors

• Manfred Herold · Offenbach am Main, DE
• Herbert Rebel · Rodgau, DE

Key dates

• Filing date: May 2, 1986
• Grant date: Aug 25, 1987
• Expiry date: May 2, 2006

Classification

• Technology area (CPC B): Performing Operations; Transporting
• CPC primary: B41F27/1231
• WIPO field: Textile and paper machines
• WIPO sector: Mechanical engineering

Abstract

A quick-action plate clamping mechanism for a plate cylinder of a printing press consists of a pressure strip disposed axially in a recess along the gap in the plate cylinder wherein the recess extends behind the plane of the rear gap wall and parallel thereto, the pressure strip being displaceable in the gap by means of an eccentric bolt which is disposed outside the cylinder center plane parallel to the clamp screws in the rear clamping bar and with specially formed recesses in the pressure strip and corresponding projections on a co-acting member being provided which are respectively situated opposite the clamp screws and supported by compression springs thereby enabling a uniform parallel clamping movement to be carried out in the direction of the rear clamping bar.