Lamina type modulated thread braking device for weft feeders

Details Lamina type modulated thread braking device for weft feeders Lamina type modulated thread braking device for weft feeders

1994-04-05

1995-03-21

Falik, Andrew M.

Textiles: weaving

Weft manipulation

Weaving with stationary weft supply

139194, 2424193, D03D 4734

Patent

active

053987322

ABSTRACT:
A modulated thread beating device for weft feeders has a first lamina and a second lamina that are arranged opposite one another and are supported by pairs of fixed and respectively movable bars that engage the ends of the respective laminae, flexing them in an arched shape; the laminae are arranged opposite each other at their convex face. The movable bars are supported by a corresponding movable element which is suspended elastically and is provided with an energization coil that is subjected to the field of a permanent magnet. The coil of the movable element is supplied with an energization current that is modulated in proportion to the advancement speed or mechanical tension of the thread.

REFERENCES:
patent: 4817681 (1989-04-01), Krumm et al.
patent: 4875506 (1989-10-01), Gacsay et al.
patent: 4969489 (1990-11-01), Tanaka et al.
patent: 5244164 (1993-09-01), Gacsay
patent: 5329962 (1994-07-01), Ohnishi et al.

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