Form cylinder of a printing press comprising a plurality of sections in series on its circumferential surface in its axial direction, and printing couple comprising such form cylinder

US8176845B2 · kind B2 · utility

Assignee

• KOENIG & BAUER AG · DE

Inventors

• Michael Koblinger · Kolitzheim, DE
• Karl Robert Schäfer · Bad Wurzach, DE

Key dates

• Filing date: Jun 27, 2007
• Grant date: May 15, 2012
• Expiry date: May 21, 2029

Classification

• Technology area (CPC B): Performing Operations; Transporting
• CPC primary: B41F27/1212
• WIPO field: Textile and paper machines
• WIPO sector: Mechanical engineering

Abstract

A form cylinder of a printing machine includes a plurality of sections in series in an axial direction of the cylinder surface. At least one printing form is arranged in each one of these sections. The form cylinder has at least one channel, also extending in the axial direction of the cylinder. That channel has an opening on the surface of the form cylinder. At least one holding device for each of the sections is arranged in this channel. Each such holding device can be pneumatically actuated in sections. At least one recess, open to the cylinder surface, is formed outside of these sections. A device that is usable to distribute compressed air to the respective sections of the form cylinder is provided in this at least one recess. The device for distributing the compressed air is configured as a plurality of valves. At least one control device is provided outside of the form cylinder and is used to activate the plurality of valves in a non-contact manner. The control device associated with each valve is oriented toward the surface of the form cylinder and acts in a radial direction.