Metal deforming – With use of control means energized in response to activator... – Metal deforming by use of roller or roller-like tool element
Patent
1984-12-18
1985-09-24
Combs, E. Michael
Metal deforming
With use of control means energized in response to activator...
Metal deforming by use of roller or roller-like tool element
72137, 140103, B21F 3502
Patent
active
045426350
ABSTRACT:
Apparatus for manufacturing solid tension coil springs providing loops at both ends with excellent productivity under the condition that shape of loop, facing angle of loops at both ends and number of turns between the loops are respectively set accurately to the desired values characterized in that on the occasion of forming a solid tension coil portion by sending the wire material and abutting it in contact with the bending dies, when the end portion of the solid tension coil formed abuts in contact with the contact type sensor for control, sending of wire material is stopped and thereby a solid tension coil spring in the desired number of turns can be manufactured, then the coil spring is cut on the side of bending dies in the condition that said coil spring is held, thereafter said coil spring is sent to the next stage while it is held, and while the next coil spring is being manufactured, both loops are formed by raising simultaneously both ends of the solid coil spring being held.
REFERENCES:
patent: 873430 (1907-12-01), Harter
patent: 940828 (1909-11-01), Sleeper
patent: 1873626 (1932-08-01), Nigro
patent: 2135729 (1938-11-01), Olgay
patent: 3192748 (1965-07-01), Lange
patent: 3313325 (1967-04-01), Wells
patent: 4026135 (1977-05-01), Yagusic et al.
Combs E. Michael
MEC Machinery Co., Ltd.
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