Pile warp tension control in a loom

Details Pile warp tension control in a loom Pile warp tension control in a loom

1989-06-28

1991-05-14

Falik, Andrew M.

Textiles: weaving

Warp manipulation

Feeding

139102, 139114, D03D 4912

Patent

active

050147560

ABSTRACT:
To operate the loom, one or more warp-tensioning elements is or are actuated by separate drives on an individual pick basis with free triggering and at loom speed. The warp tension can therefore be so modulated as to obviate deleterious tension peaks and warp breakages and overflow tensions. The loom has at least one servomotor. A servomotor, which is triggered by a control and adjustment circuit arrangement, drives the warp-tensioning element by way of a reduction transmission and transmission elements. The servomotor can be commutated preferably brushlessly and electronically and have a low mass inertia rotor and high-field-strength permanent magnets.

REFERENCES:
patent: 4106492 (1978-08-01), Schuett et al.
patent: 4350941 (1982-09-01), McClure et al.
patent: 4554472 (1985-11-01), Kumantani
patent: 4554951 (1985-11-01), Hirano et al.
patent: 4569373 (1986-02-01), Vogel
patent: 4750527 (1988-06-01), Rehling
patent: 4827985 (1989-05-01), Sugita et al.

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