Air supply controller for weft insertion nozzles in an air jet loom

US6748981B2 · kind B2 · utility

Assignee

• Lindauer DORNIER Gesellschaft mbH · DE

Inventors

• Markus Gielen · Gettorf, DE
• Adnan Wahhoud · Lindau (Bodensee), DE
• Dieter Teufel · Tettnang, DE
• Peter J. Schiller · Gettorf, DE
• Matthias Armbrust · Schallstadt, DE

Key dates

• Filing date: May 16, 2002
• Grant date: Jun 15, 2004
• Expiry date: Jul 18, 2022

Classification

• Technology area (CPC D): Textiles; Paper
• CPC primary: D03D47/3053
• WIPO field: Textile and paper machines
• WIPO sector: Mechanical engineering

Abstract

An arrangement for supplying air with a controlled pressure to the main weft insertion nozzles of an air jet loom includes a single servovalve connected between a pressurized air source, an air vent, and a pressure manifold, and individual shut-off valves respectively interposed in branch lines connected from the pressure manifold to the individual nozzles. A pressure sensor measures the actual pressure provided to the manifold. An electronic controller receives a pressure control signal and controls the servovalve responsive to any difference between the pressure control signal and the actual measured pressure signal. The arrangement is simple, economical, and rapidly reacting, to avoid the need of individual throttle valves or pressure regulators for the individual nozzles.