Method and device for treating moving paper webs

US6179764A · kind A · utility

Assignee

• KOENIG & BAUER AG · DE

Inventor

• Günther Oskar Eckert · Zellingen, DE

Key dates

• Filing date: Sep 22, 1999
• Grant date: Jan 30, 2001
• Expiry date: Sep 22, 2019

Classification

• Technology area (CPC B): Performing Operations; Transporting
• CPC primary: B65H45/162
• WIPO field: Handling
• WIPO sector: Mechanical engineering

Abstract

Moving paper webs are treated by having a cross-groove or crease pressed into them prior to being transversely cut and folded. The cross-groove or crease is produced by a radially vibrating, rail-like pressure tool that cooperates with a counter-pressure tool. These tools cooperate to form a sharp, folded crease, even in thick products. The crease is formed along the to be formed cross fold line.