Process and apparatus for condensing a drafted fiber strand

US6327747A · kind A · utility

Assignees

• Fritz Stahlecker · DE
• Hans Stahlecker · DE

Inventor

• Gerd Stahlecker · Eislingen/Fils, DE

Key dates

• Filing date: May 19, 2000
• Grant date: Dec 11, 2001
• Expiry date: May 19, 2020

Classification

• Technology area (CPC D): Textiles; Paper
• CPC primary: D01H5/72
• WIPO field: Textile and paper machines
• WIPO sector: Mechanical engineering

Abstract

In a process for condensing a drafted fiber strand in a condensing zone arranged downstream of a front roller pair of a drafting apparatus, the fiber strand is transported through the condensing zone by means of a perforated, suctioned transport belt. It is hereby provided that the fiber strand has the same direction of motion as the transport belt. Furthermore, it is ensured that a sufficient amount of the fibers located in the fiber strand are still nipped by the front roller pair during condensing. This results in the advantage that the front ends of the fibers of the fiber strand to be condensed do not insert themselves into the perforation of the transport belt, thus leading to clogging.