Apparatus for twisting multifilament yarn

Details Apparatus for twisting multifilament yarn Apparatus for twisting multifilament yarn

1986-07-30

1987-10-13

Petrakes, John

Textiles: spinning, twisting, and twining

Apparatus and processes

False twist device

57105, 57348, D02G 104, D01H 1241

Patent

active

046989595

ABSTRACT:
A yarn twisting apparatus is disclosed wherein a single endless belt is entrained upon first and second roller means. At least one of the roller means is rotatably driven, so that the belt segments which extend between the roller means cross in opposing face-to-face relation at a location between the roller means and so as to define a twisting zone therebetween, and a running yarn is guided through the twisting zone so as to have twist imparted thereto. In a preferred embodiment, one of the roller means comprises a pair of individual rollers which are selectively movable to permit adjustment of their lateral separation, and which in turn permits adjustment of the crossing angle of the belt segments and thus the amount of twist imparted to the running yarn. Also, the pair of rollers are preferably mounted by an arrangement which permits the pivoting of the rollers about a transverse axis which extends through the twisting zone, to thereby permit the belt segments to be separated at the twisting zone and thus facilitate yarn threadup.

REFERENCES:
patent: 2908133 (1959-10-01), Brown
patent: 3045416 (1962-07-01), Ubbelohde
patent: 3103097 (1963-09-01), Meili et al.
patent: 4047373 (1977-09-01), Takai
patent: 4144700 (1979-03-01), Takai et al.
patent: 4144701 (1979-03-01), Takai et al.
patent: 4296598 (1981-10-01), Faure
patent: 4377932 (1983-03-01), Dammann et al.
patent: 4566265 (1986-01-01), Naylor

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