Flattening device in a paper processing machine

US6007471A · kind A · utility

Assignee

• BOEWE SYSTEC GMBH · DE

Inventors

• Werner G. Munk · Ravensburg, DE
• Christian Kraus · Aystetten, DE
• Helmut Koelle · Augsburg, DE

Key dates

• Filing date: Aug 8, 1997
• Grant date: Dec 28, 1999
• Expiry date: Aug 8, 2017

Classification

• Technology area (CPC B): Performing Operations; Transporting
• CPC primary: B65H23/26
• WIPO field: Handling
• WIPO sector: Mechanical engineering

Abstract

A curl-suppressing device for a paper web in a paper processing machine has a stationary deflecting bar (1) that extends transversely to the direction of travel (A) of the paper, a deflecting roller (4) parallel to the deflecting bar (1) and arranged downstream of the deflecting bar (1) in the direction of travel of the paper and two supporting plates (3) that carry the ends of the deflecting bar and deflecting roller and may be displaced around a swivelling axis (A3) on a stationary support (9). The paper web (2) to be decurled runs in a S-shaped path between the deflecting bar (1) and the deflecting roller (4) and is frictionally drawn over the deflecting bar (1). A regulating motor is associated to one of the supporting plates (3) to swivel the supporting plate (3) until at least the deflecting bar (1) may be moved out of contact with the paper web (2).