Automatic weft yarn package changing system

Details Automatic weft yarn package changing system Automatic weft yarn package changing system

1989-10-06

1991-03-19

Falik, Andrew M.

Textiles: weaving

Weft manipulation

Weaving with stationary weft supply

242 355A, 2421311, D03D 4734

Patent

active

050002317

ABSTRACT:
A yarn package changing method and an apparatus for carrying out the same, for use in combination with a loom which receives the weft yarn from a yarn package. The yarn package changing method carries out automatic yarn package changing operation through steps of removing an empty bobbin set in a yarn package changing position on a yarn package stand, by a yarn package transporting device, supplying a new yarn package to the yarn package stand by the yarn package transporting device, holding the leading end of the new yarn package at a predetermined position by a leading end positioning device; and setting the new yarn package in a feeding position on the yarn package stand. The apparatus includes a yarn package stand capable of holding a yarn package in a feeding position to feed the weft yarn to an automatic weft yarn threading device, a yarn package transporting device capable of automatically mounting a new yarn package on and removing a used yarn package from the yarn package stand, and a leading in positioning device for holding the leading end of a new yarn package mounted on the yarn package stand at a predetermined position, disposed opposite the automatic weft yarn threading device.

REFERENCES:
patent: 3168911 (1965-02-01), Pfarrwaller et al.
patent: 3773274 (1973-11-01), Wildi
patent: 4358068 (1982-11-01), Weiss
patent: 4658866 (1987-04-01), Takegawa
patent: 4739611 (1988-04-01), Rohner
patent: 4783021 (1988-11-01), Nagasawa

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