Method and apparatus for forming and gripping a web beginning of a replacement roll

US5386751A · kind A · utility

Assignee

• MAN Roland Druckmaschinen AG · DE

Inventors

• Norbert Dylla · Stadtbergen, DE
• Michael Worner · Gräfenberg, DE

Key dates

• Filing date: Mar 23, 1993
• Grant date: Feb 7, 1995
• Expiry date: Mar 23, 2013

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10T225/30
• WIPO field: Handling
• WIPO sector: Mechanical engineering

Abstract

A method and an apparatus for forming and gripping a beginning of a web of a replacement roll. At least one suction ledge is placed on an outer layer of the roll in a position in which the suction ledge extends parallel to the axis of the roll. The outer layer is raised by the suction ledge so that the outer layer is tensioned. The tensioned outer layer is cut parallel to and on the waste paper side of the suction ledge. Finally, the web beginning is lifted off by the suction ledge.