Coiling machine, method for manufacturing coil spring, and coil spring
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United States of America Patent
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Apr 23, 2024
Grant Date -
Oct 21, 2021
app pub date -
Jun 28, 2021
filing date -
Dec 28, 2018
priority date (Note) -
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status (Latency Note)
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Abstract
A coiling machine includes feed rollers for moving a wire, a wire guide, a first forming roller, a second forming roller, a pitch tool, a cutting mechanism, and a support mechanism for supporting the wire. The cutting mechanism includes a cutting rotor. The wire coming out of the wire guide is formed into a helical shape by the first forming roller, the second forming roller and the pitch tool. After one coil spring of a predetermined length is formed, the wire is cut by moving the cutting rotor in the radial direction of the wire. The cutting rotor cuts the wire supported by the support mechanism in the radial direction of the wire between the second forming roller and the pitch tool.
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