Manufacture of tapered coil spring专利检索- 由线制造弹簧专利检索查询-专利查询网

Manufacture of tapered coil spring
申请号	JP32986089	申请日	1989-12-19	公开(公告)号	JPH03189036A	公开(公告)日	1991-08-19
申请人	Kobe Steel Ltd;			发明人	MURAHASHI MAMORU; KAWAGUCHI YASUNOBU;
摘要	PURPOSE: To efficiently form the spring by forming a hardened tapered wire having repeatedly a tapered part, and subsequently, bringing it to tempering and feeding it to a spring forming device, and forming continuously the spring. CONSTITUTION: An element wire W fed from a supply device 1 is heated by a heating device 2b, tension is applied thereto by a tension roller 2d, quenched by cooling 2c and a hardened tapered wire TW having repeatedly a tapered part is formed. In a tempering furnace 3, the hardened tapered wire TW from a taper forming device 2 is brought to tempering continuously. Subsequently, while giving prescribed tension by a pair of constant torque pinch rollers 4, the tempering processing is executed, and after the wire is adjusted to a pre scribed temperature by a temperature regulating device 7, it is cut separately as a tapered spring stock TR by a running cutting machine 8. Next, it is fed into a buffer device 5 through a guide pipe 9, and a transfer speed is converted and adjusted. By a spring forming device 6, the stock TR is formed successively to a barrel-like tapered coil spring TS. COPYRIGHT: (C)1991,JPO&Japio
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