Patent · US Expired

Method and apparatus for determining the point of regulation for a drafting unit in a fiber processing machine

US6640392B2 · kind B2 · utility

3Cited by

17References

17Claims

0Family size

Assignee

TRÜTZSCHLER GMBH & CO. KG · DE

Inventors

Chokri Cherif · Ingolstadt, DE
Burkhard Wulfhorst · Aachen, DE

Key dates

Filing date	Apr 25, 2002
Grant date	Nov 4, 2003
Priority date	—
Expiry date	Apr 25, 2022

Classification

Technology area (CPC D)Textiles; Paper
CPC primaryD01H13/32
WIPO fieldTextile and paper machines
WIPO sectorMechanical engineering

Abstract

An apparatus for determining a point of regulation in a drafting unit includes a sensor for generating signals as a function of change in a quality-representing magnitude of the fiber material running through the drafting unit; a control device receiving the signals for varying a draft of the fiber material by the drafting unit; and an arrangement for continuously determining, during operation, optimal points of regulation based on the signals.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.