Printing unit pertaining to a multi-color roller rotary press, and method for operating the same

US7735418B2 · kind B2 · utility

Assignee

• KOENIG & BAUER AG · DE

Inventors

• Thomas Hoffmann · Berlin, DE
• Jürgen Alfred Stiel · Thüngen, DE

Key dates

• Filing date: Apr 28, 2004
• Grant date: Jun 15, 2010
• Expiry date: Apr 11, 2025

Classification

• Technology area (CPC B): Performing Operations; Transporting
• CPC primary: B41F13/30
• WIPO field: Textile and paper machines
• WIPO sector: Mechanical engineering

Abstract

A printing unit, which is a part of a multi-color printing press, has a plurality of double printing units which are arranged vertically one above the other and consist of two printing groups forming a double print position. The printing group cylinders are mounted together in a central stand section. Inking units, which are associated with the printing groups, are mounted in outer stand sections. A distance between adjacent ones of these stand sections is adjustable. Printing and transfer cylinders of each printing group are coupled by a toothed gear wheel connection and are driven in pairs by a separate drive motor. The toothed gear wheels of all of the printing group cylinders are arranged in a common lubricant chamber which is formed by the central stand section and a cover. The inking systems have at least one separate drive motor, which is independent of the printing group cylinders.