Method and apparatus for roll forming convoluted springs

Details Method and apparatus for roll forming convoluted springs Method and apparatus for roll forming convoluted springs

1996-08-29

1998-03-31

Larson, Lowell A.

Metal deforming

By use of 'flying tool' engaging moving work

Included in plural deforming stations or passes

72196, B21D 1304

Patent

active

057325847

ABSTRACT:
An apparatus for roll forming convoluted springs in which a tempered steel strip is fed between a pair of forming rolls which produce a continuous convoluted steel strip. A compression mechanism downstream of the pair of forming rolls compresses the continuous convoluted steel strip to set the angular relationship of the adjacent legs of the convoluted steel strip. A cut-off mechanism disposed downstream of the compression mechanism device severs from the convoluted strip individual convoluted springs having a predetermined number of convolutions and desired spring characteristics.

REFERENCES:
patent: 1143735 (1915-06-01), Slick
patent: 1741907 (1929-12-01), Beck
patent: 4507948 (1985-04-01), Wallis
patent: 4608845 (1986-09-01), Campbell
patent: 4838065 (1989-06-01), Wallis
patent: 5261262 (1993-11-01), Wallis

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