Weft feeder for fluid jet looms with pneumatic rethreading appar

Details Weft feeder for fluid jet looms with pneumatic rethreading appar Weft feeder for fluid jet looms with pneumatic rethreading appar

1990-09-27

1992-05-05

Falik, Andrew M.

Textiles: weaving

Weft manipulation

Weaving with stationary weft supply

139452, 1391162, 1394354, D03D 4734

Patent

active

051098911

ABSTRACT:
In a measuring weft feeder for fluid jet looms, the continuity of the weft yarn from the feed spool or reel to the main nozzle of the loom is automatically restored by two compressed air devices acting on the weft yarn, the first of which--positioned at the inlet of the weft feeder, to withdraw therefrom the broken yarn and introduce therein new yarn fed by the spool or reel--comprises a first duct connected to the inlet of the weft feeder, along which duct there are positioned a clamp, a nozzle and a cutter. A second duct branches off from the first, close to its outlet into the weft feeder, which also comprises a nozzle, while the second device--positioned adjacent to the weft feeder drum, to receive the new yarn fed by the first device and by the winding arm and send it to a fixed point for feeding the main nozzle of the loom--comprises a curved profiled duct, which is either open or adapted to open longitudinally towards the drum and has an aerodynamic guide for the yarn. A third compressed air device can also be provided, to act on the weft yarn is sent from the second device so as to facilitate its feeding into the main loom nozzle, this third device also comprising a duct wherein acts a nozzle as well as an air outlet.

REFERENCES:
patent: 4658866 (1987-04-01), Takegawa
patent: 4832091 (1989-05-01), Shaw
patent: 4916784 (1990-04-01), Tachibana et al.
patent: 4951718 (1990-08-01), Shaw
patent: 4989644 (1991-02-01), Tanaka et al.

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