Lacing wire stop mechanism for a coil spring assembly machine

Details Lacing wire stop mechanism for a coil spring assembly machine Lacing wire stop mechanism for a coil spring assembly machine

1981-09-10

1984-05-01

Gilden, Leon

Wireworking

Article making or forming

Helix screwing through row of loops or openings

226 25, 226 45, 83 64, B21F 2100

Patent

active

044455470

ABSTRACT:
A stop mechanism operative to stop a sprial lacing wire if the lacing wire encounters an obstacle as it is being wound in lacing fashion about juxtaposed end loops of coil springs in two adjacent coil spring rows, and after the lacing wire has completely laced together those two spring rows. A sensor functions to sense when the spiral lacing wire encounters an obstacle in its lacing path, the sensor incorporating a proximity switch that cooperates with a bowed guide element. The bowed guide element induces the lacing wire to pop out or bow away from the switch when the obstacle is encountered, activation of the switch causing the lacing wire to stop at once in its lacing path. A clamp device cooperates with a feeder switch to clamp the unlaced spiral lacing wire between its jaws when the feeder switch is activated by the lacing wire's lead end after the lacing wire has traversed the entire length of the adjacent rows.

REFERENCES:
patent: 2480781 (1949-08-01), Simpson
patent: 2840118 (1958-06-01), Gail
patent: 3122177 (1964-02-01), Kamp
patent: 3212377 (1965-10-01), Bennett
patent: 3451443 (1969-06-01), Spuhl
patent: 3503115 (1970-03-01), Kirchner
patent: 3541828 (1970-11-01), Norman
patent: 4112726 (1978-09-01), Adams et al.

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