Printing unit of a web-fed rotary press

US7938064B2 · kind B2 · utility

Assignee

• MAN Roland Druckmaschinen AG · DE

Inventors

• Stefan Albrecht · Glückstadt, DE
• Rainer Burger · Augsburg, DE
• Norbert Dylla · Stadtbergen, DE
• Helmut Stuhlmiller · Burgau, DE

Key dates

• Filing date: Apr 13, 2006
• Grant date: May 10, 2011
• Expiry date: Nov 3, 2028

Classification

• Technology area (CPC B): Performing Operations; Transporting
• CPC primary: B41P2227/70
• WIPO field: Textile and paper machines
• WIPO sector: Mechanical engineering

Abstract

A printing unit of a web-fed rotary press has a plurality of press units, each press unit having a form cylinder, a transfer cylinder, an inking unit and optionally a damping unit, and having at least one impression cylinder. Each form cylinder rolls on the respective transfer cylinder and each transfer cylinder rolling on an impression cylinder in a thrown-on position of the printing unit, in order to apply single-color printed images onto a printing material which is moved through between the transfer cylinders and the or each impression cylinder. Each form cylinder bears a plurality of printing images next to one another in the axial direction, by which corresponding single-color printed images are applied to the printing material. The printing images which are arranged next to one another in the axial direction of the respective form cylinder are offset with respect to one another in the circumferential direction in such a way that deviations in the circumferential register between the single-color printed images which are to be printed in different press units can be compensated for.