Filtering device and spinning head

US6604928B1 · kind B1 · utility

Assignees

• HYDAC PROCESS TECHNOLOGY GMBH · DE
• Barmag AG · DE

Inventors

• Ralf Wnuk · Bexbach, DE
• Norbert Lang · Blieskastel, DE
• Jurgen Hausdorf · Saarburg, DE
• Markus Reichwein · Hückeswagen, DE
• Roland Nitschke · Hagen, DE
• Jörg Alexander · Remscheid, DE
• Stefan Becker · Mannheim, DE

Key dates

• Filing date: Nov 14, 2000
• Grant date: Aug 12, 2003
• Expiry date: Nov 14, 2020

Classification

• Technology area (CPC D): Textiles; Paper
• CPC primary: D01D1/106
• WIPO field: Textile and paper machines
• WIPO sector: Mechanical engineering

Abstract

A filtering device for a spinning head for producing plastic threads. The spinning head has a housing in which the plastic melt flows through a filter element under pressure before exiting the spinnerets. The filter element is provided with a filtering material that is subjected to an axial contact pressure through a distributor device, according to the degree of pressure of the melt. This contact pressure acts upon the sealing edges of the filter element to close the sealing gaps. The special geometrical configuration of the filter element and/or its elasticity guarantee advantageous filtering in terms of energy. The filtering system is resistant to pressure and provides good, permanent sealing.