Weft winder for weaving machine having magnets with different su

Details Weft winder for weaving machine having magnets with different su Weft winder for weaving machine having magnets with different su

1993-07-14

1994-12-06

Falik, Andrew M.

Textiles: weaving

Weft manipulation

Weaving with stationary weft supply

D03D 4734

Patent

active

053701585

ABSTRACT:
The weft winder for a weaving machine has (a) a non-magnetic, hollow-cylindrical outer frame member having an inner conical surface at one end thereof; (b) a rotor disposed rotatably and concentrically with the outer frame member, which is only rotatable; (c) a non-magnetic, inner frame member rotatably supported by the rotor and having an outer conical surface facing the inner conical surface of the outer frame member via a gap therebetween; (d) a pipe projecting from an outer end of the rotor and extending in the gap for guiding a weft; and (e) a plurality of magnet members each constituted by a plate-shaped magnet and a yoke and fixed to the inner conical surface and the outer conical surface, respectively, such that N poles and S poles of the magnets are circumferentially arranged alternately and that different magnetic poles of the magnet members are opposing each other via the gap. The magnet in each magnet member is magnetized in a thickness direction such that a magnetic pole on a front surface facing the gap has a larger magnetic flux density than that of a magnetic pole on a rear surface.

REFERENCES:
patent: 4498639 (1985-02-01), Deborde et al.
patent: 4744394 (1988-05-01), Lincke
patent: 4747549 (1988-05-01), Bulzarotti
patent: 4850401 (1989-07-01), Hamer
patent: 5046536 (1991-09-01), Zenonic
patent: 5094275 (1992-03-01), Shaw et al.

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