Sheet guide device in a rotary printing machine

US6729233B2 · kind B2 · utility

Assignee

• MAN Roland Druckmaschinen AG · DE

Inventors

• Lucas Knopp · Alzenau, DE
• Peter Wulf · Ennepetal, DE
• Frank Seidel · Schnaittenbach, DE
• Steffen Flotow · Großkrotzenburg, DE
• Udo Trillig · Offenbach, DE

Key dates

• Filing date: Dec 4, 2001
• Grant date: May 4, 2004
• Expiry date: Dec 4, 2021

Classification

• Technology area (CPC B): Performing Operations; Transporting
• CPC primary: B41F25/00
• WIPO field: Textile and paper machines
• WIPO sector: Mechanical engineering

Abstract

A sheet guide apparatus for use in a rotary printing press which is adapted for the smear and mark free transfer of sheets between two sheet holding and transfer systems, such as a pair of sheet-carrying cylinders or a sheet-carrying cylinder and circulating sheet conveyor. The sheet guide apparatus includes a sheet guide having a guide surface disposed beneath the transfer area, and a pneumatic system for blowing a positive pressure air stream in the direction of a transfer area or tangent point between the sheet holding and transfer systems. A further pneumatic system optionally may be provided for drawing or blowing air through apertures in the guide surface.