Method and apparatus for monitoring a winding hardness of a winding roll

US6209817A · kind A · utility

Assignee

• Voith Sulzer Papiertechnik Patent GmbH · DE

Inventors

• Hans-Rolf Conrad · Dormagen, DE
• Dirk Cramer · Duisburg, DE

Key dates

• Filing date: May 12, 1999
• Grant date: Apr 3, 2001
• Expiry date: May 12, 2019

Classification

• Technology area (CPC B): Performing Operations; Transporting
• CPC primary: B65H2515/12
• WIPO field: Handling
• WIPO sector: Mechanical engineering

Abstract

Method and apparatus for monitoring a winding hardness of a winding roll when winding a material web. A series of marks are placed on the material web at a first location as it is wound onto the winding roll. The distance between two successive marks is detected at a second location. The detected distance of two successive marks is used to determine a stretch of the material web.