Method for automatic changing of printing plates

US5390603A · kind A · utility

Assignee

• Heidelberger Druckmaschinen AG · DE

Inventors

• Dieter Hauck · Eberbach, DE
• Robert Muller · Mörlenbach, DE
• Jurgen Reithofer · Schallstadt, DE

Key dates

• Filing date: Jun 17, 1993
• Grant date: Feb 21, 1995
• Expiry date: Jun 17, 2013

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 for automatically changing printing plates for a printing machine is disclosed. The machine has a plurality of printing cylinders for mounting the printing plates, wherein each printing cylinder has a respective side register. The method comprises: driving a first printing cylinder to a printing plate release position; releasing the trailing edge of the old printing plate; turning the printing cylinder in a direction for unwinding the old printing plate; stopping the printing machine in a printing plate release position of another printing cylinder; releasing the old printing plate of the other printing cylinder; turning the printing machine in a direction for unwinding the old printing plate; repeating foregoing steps until all old printing plates are released and are connected at their respective leading edges; turning the printing machine in a direction for on-winding new printing plates; stopping the printing machine in a printing plate feed-in position of a first printing cylinder; feeding-in a first new printing plate to the first printing cylinder, and clamping onto the printing cylinder the first new plate; repeating foregoing steps until all new printing plates ha…