Weft storing and delivering device with pneumatic threader

Details Weft storing and delivering device with pneumatic threader Weft storing and delivering device with pneumatic threader

1990-05-18

1992-03-10

Falik, Andrew M.

Textiles: weaving

Weft manipulation

Weaving with stationary weft supply

242 4701, D03D 4734

Patent

active

050942751

ABSTRACT:
A yarn storing and delivering device for a weaving machine includes a stationary base body and a hollow shaft which is rotatably mounted in the base body and which carries a laterally projecting yarn feeder element. Yarn is guided into the hollow shaft and wound by the yarn feeder element onto a storing surface of a storing drum which is maintained stationary relative to the base body. The yarn is axially withdrawn from the storing drum over a free edge of the storing surface and through a substantially central guide opening. A threading device equipped with air jet nozzles is provided for automatically threading the yarn up to a location within the guide opening. The threading device includes a compressed air conveying system disposed between the guide opening and a location adjacent the outlet of the yarn feeder element. The compressed air conveying system includes a plurality of stationary directional jet nozzles which, when activated, provide an air flow which delivers the yarn to the guide opening.

REFERENCES:
patent: 4102362 (1978-07-01), Tojo
patent: 4351495 (1982-09-01), Lindstrom et al.
patent: 4658866 (1987-04-01), Takegawa
patent: 4756341 (1988-07-01), Takehana
patent: 4832091 (1989-05-01), Shaw

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