Machine for processing sheets

US8561987B2 · kind B2 · utility

Assignee

• Heidelberger Druckmaschinen AG · DE

Inventors

• Detlev Berlingen · Heidelberg, DE
• Ulrich Fellenberg · Oftersheim, DE
• Frank Gunschera · Osnabrück, DE
• Sven Lippardt · Bensheim, DE
• Frank Schramm · Hohenhausen, DE

Key dates

• Filing date: Jul 9, 2004
• Grant date: Oct 22, 2013
• Expiry date: Nov 22, 2029

Classification

• Technology area (CPC B): Performing Operations; Transporting
• CPC primary: B65H2801/21
• WIPO field: Handling
• WIPO sector: Mechanical engineering

Abstract

The invention relates to a machine for processing sheets, having a deliverer for delivering the sheets which comprises a delivery drum that is acted on pneumatically. The delivery drum has vacuum applied to it. The delivery drum also has disks for carrying the sheets, each of the disks defining vacuum channels for holding the sheets. The vacuum channels have openings and a vacuum connection. The openings and the vacuum connection together form a rotary valve cyclically applying vacuum to the vacuum channels.