Weft bobbin changer for a loom

Details Weft bobbin changer for a loom Weft bobbin changer for a loom

1988-06-02

1989-12-19

Falik, Andrew M.

Textiles: weaving

Weft manipulation

Weaving with stationary weft supply

139452, 139224A, 242 356R, D03D 4734, B65H 6702, B65H 6902

Patent

active

048876496

ABSTRACT:
The weft bobbin changer comprises a bobbin turntable comprising a delivery bobbin and at least one reserve bobbin. A sensor continuously monitors the quantity of yarn on the delivery bobbin. Only when the adjustable minimum quantity of yarn on the delivery bobbin has been reached is a piecing-up operation performed to join the yarn of the deliver bobbin to the yarn of the reserve bobbin. The yarn of the previous delivery bobbin being severed between the delivery bobbin and a yarn joint which has been or will be made is such that the previous reserve bobbin becomes the new delivery bobbin. The minimum yarn quantity for high-quality fabrics can therefore be greater than previously without loss of material and the yarn residues left on the bobbin can be further processed in lower-quality products.

REFERENCES:
patent: 3358941 (1967-12-01), Jenny
patent: 3377676 (1968-04-01), Furst
patent: 3926224 (1975-12-01), Vermeulen et al.
patent: 4667705 (1987-05-01), Nijhuis et al.

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