Method and apparatus for fiber length measurement

US6611994B2 · kind B2 · utility

Assignee

• Maschinenfabrik Rieter AG · CH

Inventors

• Jurg Bischofberger · Elsau, CH
• Gotz Gresser · Winterthur, CH
• Olivier Wüest · Seuzach, CH
• Christian Sauter · Flurlingen, CH
• Jurg Faas · Dinhard, CH
• Peter Artzt · Reutlingen, DE
• Volker Jehle · Rielasingen-Worblingen, DE
• Hermann Maidel · Reutlingen, DE

Key dates

• Filing date: Jun 22, 2001
• Grant date: Sep 2, 2003
• Expiry date: Jun 22, 2021

Classification

• Technology area (CPC D): Textiles; Paper
• CPC primary: D01G31/006
• WIPO field: Textile and paper machines
• WIPO sector: Mechanical engineering

Abstract

The present invention relates to the application of fiber length measurement in the blowroom or carding room of a spinning mill. A method and an apparatus in a textile processing machine are described in which before and/or after a working element of the textile processing machine the nep count and/or the fiber length (staple) is determined, with an open-loop/closed-loop control unit being provided which receives the values for the fiber length and/or the nep count as input and determines therefrom the optimized machine setting data and outputs the same to at least one actuator of a working element which influences the nep count and/or the staple of the textile processing machine.