Method and apparatus for producing intertwined knots in a multifilament thread
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United States of America Patent
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Aug 23, 2016
Grant Date -
Mar 13, 2014
app pub date -
May 7, 2012
filing date -
May 19, 2011
priority date (Note) -
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Abstract
A method and an apparatus produces intertwining knots in a multifilament thread. In this case, an air-stream pulse is directed through a nozzle opening transversely onto the thread. In order to produce a continuous succession of intertwining knots, the air-stream pulse is produced periodically with an interval between the air-stream pulses. In order to be able to produce an irregular thread structure, the interval between successive air-stream pulses is continuously changed. To this end, the apparatus has a nozzle ring carrying the nozzle opening, the nozzle ring being coupled to a drive. The drive of the nozzle ring is assigned a control device, by way of which a rotary speed of the nozzle ring is controllable for the purpose of changing an interval between the air-stream pulses.
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