Method and device for producing a crimped multifilament thread

Patent metadata

Field	Value
Publication number	US-9309608-B2
Application number	US-201314082724-A
Country	US
Kind code	B2
Filing date	Nov 18, 2013
Priority date	Jun 16, 2011
Publication date	Apr 12, 2016
Grant date	Apr 12, 2016

Abstract

A method and a device for producing a crimped multifilament thread are described. A multiplicity of filaments are extruded by means of a spinning machine, cooled and subsequently treated by a drawing device and a crimping device to form a crimped thread. Before the thread is wound up to form a bobbin, a multiplicity of intertwining knots is produced on the crimped thread by a treatment device. In order to obtain defined patterns of the intertwining knots within the thread, a pulse sequence of compressed air pulses at a predefined frequency is directed at the thread. The treatment device has a controllable blowing means.

First claim

The invention claimed is:

1. A device for manufacturing a crimped multifilament thread comprising:
a spinning apparatus;
a stretching apparatus downstream of the spinning apparatus;
a crimping apparatus downstream of the spinning apparatus;
a treatment apparatus downstream of the spinning apparatus for producing an intertwined knot, wherein the treatment apparatus is arranged in a thread track between two driven godets; the treatment apparatus including a controllable blowing apparatus that has a rotationally driven nozzle ring with a peripheral thread guide track and at lease one nozzle bore opening into the thread guide track, which is periodically connected with a compressed air source by rotation of the nozzle ring for periodically producing a compressed air pulse directed on the thread;
an enclosure having a thread inlet and a thread outlet with the enclosure being arranged at a front side of a support wall and completely surrounding the nozzle ring to enclose the nozzle ring; and
an electric motor associated with the nozzle ring, wherein a back side of the support wall supports the motor.

2. The device according to claim 1 , wherein the nozzle ring is coupled to the electric motor and to a control apparatus associated with the electric motor.

3. The device according to claim 2 , wherein the electric motor is an unregulated asynchronous motor.

4. The device according to claim 2 , wherein the control apparatus is connected with a central machine control unit.

Assignees

• Oerlikon Textile Gmbh & Co Kg

Inventors

• Stündl Mathias
• Kaulitzki Marco
• Matthies Claus
• Lennemann Friedrich
• Hubert Christian
• Legge Ludger
• Westphal Jan
• Borchardt Jan

Classifications

• D01D10/00

  Physical treatment of artificial filaments or the like during manufacture, i.e. during a continuous production process before the filaments have been collected (finishing D02J) · CPC title

• D02J1/08

  Interlacing constituent filaments without breakage thereof, e.g. by use of turbulent air streams · CPC title

• D01D10/0409

  on bobbins · CPC title

• D01D5/22 Primary

  with a crimped or curled structure; with a special structure to simulate wool (producing crimped or curled effects in filaments or threads after formation D02G1/00) · CPC title

• D01D13/02

  Elements of machines in combination · CPC title