Textiles: manufacturing – Thread finishing – Surface modification of running length
Patent
1993-05-19
1994-11-22
Crowder, Clifford D.
Textiles: manufacturing
Thread finishing
Surface modification of running length
28221, D02G 112
Patent
active
053656440
ABSTRACT:
A crimping apparatus for the continuous crimping of thermoplastic threads has a crimping nozzle with a feed channel, a nozzle orifice and a guide fork comprising two guide members and a plug feed roller with two parallel, interrupted, lateral guide means passing around its circumference, wherein the crimping nozzle and plug feed roller are positioned in such a way that, in a plug formation area following the nozzle orifice of the feed channel, a stuffer box is formed by the two lateral guide means and the two guide members of the guide fork, such that the thread is moved under pressure through the feed channel by means of a pressurized feed medium, which expands upon passing out of the nozzle orifice, wherein, in order to ensure an all-sided, rapid and uniform escape of the feed medium and a minimum friction surface between plugs and the stationary members bounding the stuffer box, the guide members of the guide fork are in the form of rows of spaced partial members, whose gaps extend parallel to the direction of movement of the rows of the spaced partial plug members.
REFERENCES:
patent: 4030169 (1977-06-01), Enneking et al.
patent: 4103404 (1978-08-01), Backer et al.
patent: 4450607 (1984-05-01), Li et al.
patent: 4877570 (1989-10-01), Nabulon
patent: 4974302 (1990-12-01), Nabulon
Crowder Clifford D.
Maschinenfabrik Rieter AG
Worrell Jr. Larry D.
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