Expanding device for tubular knitted fabrics

Details Expanding device for tubular knitted fabrics Expanding device for tubular knitted fabrics

1998-08-19

1999-03-23

Vanatta, Amy

Textiles: cloth finishing

Expanding device for textile webs

Tubular-fabric-enclosed spreader

26 83, D06C 500

Patent

active

058843760

ABSTRACT:
An expanding device (11) for tubular knitted fabrics (34) comprising a translating unit (12) on which two magnets (17), 17'), two pairs of traction wheels (15, 16, 15', 16') and two lateral expanders (22, 22') are fastened by a plurality of supporting plates (13, 13'), and on which two metal plates or, preferably, two magnets (23, 23') are attached closely facing the magnets (17, 17'); where the lateral expanders (22, 22') are fitted on swiveling pins with four pairs of sliding rollers (26-29, 26'-29') associated with four pairs of guiding belts (30-33, 30'-33') engaged with the traction wheels (15, 16, 15', 16'), so that the lateral expanders (22, 22') become rigidly connected to the translating unit (12) thanks to the force of attraction between the facing magnets (17, 17', 23, 23'); where the lateral expanders (22, 22') each hold two bipolar magnets (24, 25, 24', 25'), and four pairs of magnets or electromagnets (18-21, 18'-21') are fastened to the supporting plates (13, 13').

REFERENCES:
patent: 3175272 (1965-03-01), Cohn et al.
patent: 3922765 (1975-12-01), Hogendyk
patent: 3978557 (1976-09-01), Goodson
patent: 4103402 (1978-08-01), Frezza
patent: 4473929 (1984-10-01), Green
patent: 4598444 (1986-07-01), Diggle, Jr.
patent: 4885826 (1989-12-01), Strudel
patent: 5594978 (1997-01-01), Ferraro

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