Winding machine with support cylinders

US5478026A · kind A · utility

Assignee

• Jagenberg Aktiengesellschaft · DE

Inventors

• Herbert Schonmeier · Düsseldorf, DE
• Peter Hoffmann · Korschenbroich, DE
• Hartmut Dropczynski · Dormagen, DE
• Reinhard Schonen · Korschenbroich, DE

Key dates

• Filing date: Jan 21, 1994
• Grant date: Dec 26, 1995
• Expiry date: Jan 21, 2014

Classification

• Technology area (CPC B): Performing Operations; Transporting
• CPC primary: B65H2406/131
• WIPO field: Handling
• WIPO sector: Mechanical engineering

Abstract

For winding webs of material on cores winding machines have two support rollers on which the winding rolls are supported during winding. The web is guided from underneath through the gap between the support cylinders. When the winding rolls are exchanged, for the cutting of the web a cutting knife with a tear-off blade is raised through the gap between the support cylinders up to the cylinder bed. In order to reduce the bearing load of the winding rolls on the support cylinders in the lower wedge between the two support cylinders an air box extending over the work width and having a compressed air supply line is provided, which seals the gap between the support cylinders and has an air exit slot open towards this gap. The tear-off blade of the cutting knife is attached to a support arranged in the air box and can be moved up and down through the air exit slot into the cutting position in the cylinder bed and completely lowered into the air box.