Pot-spinning device having magnetic bearing providing radial and

Details Pot-spinning device having magnetic bearing providing radial and Pot-spinning device having magnetic bearing providing radial and

1993-03-15

1995-01-31

Stodola, Daniel P.

Textiles: spinning, twisting, and twining

Apparatus and processes

Receiving twist type

57 77, 57264, 57312, 57349, 310 905, D01H 774, D01H 108

Patent

active

053850076

ABSTRACT:
A pot spinning device is disclosed for spinning textile yarn in which the spinning pot has an inner wall and the pot is driven by a magnetic bearing device for rotating the spinning pot. The magnetic bearing device provides radial and axial support of the pot. The magnetic bearing device may comprise at least one electromagnet disposed at each end of the spinning pot. At least the ends of the spinning pot may be formed of a magnetic material positioned to interact with the magnetic bearing device. The magnetic material may be formed as an annularly magnetic portion at each end. At least one sensor may be connected to the magnetic bearing device for detecting a displacement of the spinning pot. The magnetic bearing device may have a control device for stabilizing the position of the spinning pot against displacement due to exterior forces. The spinning pot may comprise a rotor of the electric motor. The electric motor may include an annular rotor on the spinning pot. The device for rotating may be an electric motor having a short circuit rotor and a stator. The rotor may be formed of an electrically conducted material surrounding the spinning pot in the area of the stator and wherein the spinning pot may comprise a non-metallic material, with metallic material at the ends.

REFERENCES:
patent: 3314223 (1967-04-01), Bobkowiez
patent: 3851448 (1974-12-01), Sano et al.
patent: 4022008 (1977-05-01), Pimiskern et al.
patent: 4080779 (1978-03-01), Freeman et al.
patent: 4920290 (1990-04-01), Murakami et al.
patent: 5009063 (1991-04-01), Yamaguchi et al.
patent: 5117448 (1992-05-01), Benato et al.
patent: 5197270 (1993-03-01), Stahlecker
patent: 5216308 (1993-06-01), Meeks
Dipl.-Ing. F. Schumann, Ingolstadt, "Konstruieren fur eine neue Textiltechnologie-gezeigt am Beispiel der OE Garnerzeugung", Chemiefasern/Textilindustrie, Sep. 1981. No translation.

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