Method and apparatus for producing tubular products from...

Details Method and apparatus for producing tubular products from... Method and apparatus for producing tubular products from...

D - Textiles, Paper

04

H

18/586

D04H 1/56 (2006.01) B01D 39/16 (2006.01) B29C 53/56 (2006.01) B29C 53/60 (2006.01) D01D 7/00 (2006.01) D04H 3/07 (2006.01) B29C 59/00 (2006.01) B29C 59/08 (2006.01)

Patent

CA 2160261

A system and method are provided for producing tubular products (22) such as filters from nonwoven fibers (24). The system includes a die assembly (26), a collector assembly (28) including a rotating mandrel (60), a withdrawer assembly (30), and a post-treatment assembly (32). The withdrawer assembly utilizes at least one threaded roller contacting either the inner or outer periphery of a tube formed on the mandrel to withdraw the tube from the mandrel in a controlled manner. The post-treatment assembly smoothes the outer surfaces of the tube prior to cutting by melting loose fiber strands extending therefrom. The properties of the finished product can be varied by altering the operation of the collector assembly and/or the withdrawer assembly.

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