Method of and arrangement for making helical springs from biconi

Details Method of and arrangement for making helical springs from biconi Method of and arrangement for making helical springs from biconi

1997-02-07

1998-06-09

Larson, Lowell A.

Metal deforming

By deflecting successively-presented portions of work during...

With cutting of work or product

72135, 72 196, B21F 1100, B21F 302

Patent

active

057619433

ABSTRACT:
A method and arrangement of making helical springs from a wire, includes a winding machine for coiling the wire strand to a finished spring. Disposed upstream of the winding machine is a wire gage for measuring a diameter of the wire strand at a predetermined spot of a conical section of the advancing wire strand and producing a control signal commensurate with the registered diameter. The winding machine includes a cutting tool which is actuated in response to the registered control signal, with a new spring coiling cycle being initiated at the same time.

REFERENCES:
patent: 3318180 (1967-05-01), Bauman et al.
patent: 4918958 (1990-04-01), Glomb et al.

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