Printing press for security printing and method for changing a printing forme and printing press start-up

US9533486B2 · kind B2 · utility

Assignee

• KOENIG & BAUER AG · DE

Inventors

• Patrick Kress · Bad Mergentheim, DE
• Johannes Georg Schaede · Würzburg, DE
• Volkmar Rolf Schwitzky · Coburg, DE

Key dates

• Filing date: May 23, 2014
• Grant date: Jan 3, 2017
• Expiry date: May 23, 2034

Classification

• Technology area (CPC B): Performing Operations; Transporting
• CPC primary: B41P2233/10
• WIPO field: Textile and paper machines
• WIPO sector: Mechanical engineering

Abstract

A printing press for security printing has an Orloff offset printing unit comprising a plurality of stencil cylinders which can be inked, in each case, by an associated inking unit, an ink-collecting cylinder which interacts with the plurality of stencil cylinders, an Orloff plate cylinder which interacts with the ink-collecting cylinder, a transfer cylinder which interacts with the Orloff plate cylinder, and an impression cylinder which forms a printing point with the transfer cylinder. At least the transfer cylinder which interacts with the Orloff plate cylinder in the thrown-on position is included by a first printing unit section and is mounted in or on a first part frame. The ink-collecting cylinder is included by a second printing unit section and is mounted in or on a second part frame which is different from the first part frame. The first and the second part frame can be moved optionally into a first relative position with respect to one another, which forms a working position, and into a second relative position with respect to one another which forms a maintenance position. In the maintenance position, a space is formed between the first and the second printing unit sect…