System for controlling the unwinding of the warp in a loom with

Details System for controlling the unwinding of the warp in a loom with System for controlling the unwinding of the warp in a loom with

1992-06-19

1993-11-16

Falik, Andrew M.

Textiles: weaving

Warp manipulation

Feeding

D03D 4906

Patent

active

052614654

ABSTRACT:
The system for controlling the unwinding of the warp in a loom includes at least two warp beams and two electric motors for rotating the respective warp beams. Two sensor devices detect the tension of the warp threads which unwind from the two beams and are connected to two electronic regulation devices each associated with a respective motor for regulating the speeds of the motors so as to keep the tension of the warp substantially uniform. A switch is interposed between the sensors and the regulation devices for switching the connections between the sensors and the regulation devices at a predetermined frequency higher than the frequency at which the weft is beaten up in the loom.

REFERENCES:
patent: 3915198 (1975-10-01), Svaty
patent: 4546801 (1985-10-01), Bucher et al.
patent: 4572244 (1986-02-01), Kojima et al.
patent: 4662407 (1987-05-01), Duncan
patent: 5090452 (1992-02-01), Benelli

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