Method for changing a printing plate

US6425330B1 · kind B1 · utility

Assignee

• MAN Roland Druckmaschinen AG · DE

Inventors

• Karlheinz Weber · Neu-Isenburg, DE
• Michael Rother · Rödermark, DE
• Berthold Seib · Rodgau, DE
• Bernd Lindner · Frankfurt, DE
• Helmut Schild · Rheinböllen, DE
• Reinhold Heilmann · Haibach, DE

Key dates

• Filing date: Jul 19, 2000
• Grant date: Jul 30, 2002
• Expiry date: Jul 19, 2020

Classification

• Technology area (CPC B): Performing Operations; Transporting
• CPC primary: B41F27/1206
• WIPO field: Textile and paper machines
• WIPO sector: Mechanical engineering

Abstract

A method and apparatus for changing a printing plate on a plate cylinder in a sheet-fed offset printing machine is provided. The printing plate is first fed to the plate cylinder with its print-end edge leading the print-start edge. The print-end edge of the printing plate is then fixed in a first fixing device on the plate cylinder assigned to the print-end edge of the printing plate. The plate cylinder is then rotated in a direction opposite to the direction of rotation used during a printing operation to draw the printing plate around the outer circumference of the plate cylinder. The print-start edge of the printing plate is then fixed to a second fixing device on the plate cylinder that is assigned to the print-start edge of the printing plate and tensioned on the plate cylinder.