Wireworking – Crimping
Patent
1977-04-25
1978-10-24
Larson, Lowell A.
Wireworking
Crimping
B21F 3504
Patent
active
041216288
ABSTRACT:
A machine for forming wire from a continuous coil to provide springs having oppositely disposed loops includes a holder for locating the springs during operation of a cut-off mechanism and a guide for orienting and delivering the cut springs to a location remote from the cut-off mechanism. In one preferred embodiment that forms circular springs, the holder includes a downwardly inclined chute that positions the springs and the guide includes a conveyor onto which the springs roll from the chute as well as deflection plates for laying the springs down flat on the conveyor. In two other embodiments of the machine designed to form elongated springs, the holder of each has a slide plate and shoe for positioning the springs and the guide incorporates downwardly inclined guide members that receive the cut springs from the holder and position the springs in a stacked relationship. One of the elongated spring forming machines has its holder slide plate provided with horizontal and inclined portions and is specifically designed to position relatively long springs, while the other elongated spring forming machine has its holder slide plate provided with an inclined edge and the slide shoe provided with a positioning prong between the guide members in order to be capable of positioning relatively short springs.
REFERENCES:
patent: 716051 (1902-12-01), Kelly et al.
patent: 2331294 (1943-10-01), Bank et al.
Schuler Francis X.
Waligore Edward James
Larson Lowell A.
Lear Siegler, Inc.
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