公开(公告)号：EP3263242B1

公开(公告)日：2019-10-02

申请号：EP16755168.8

申请日：2016-02-04

Applicant: NHK Spring Co., Ltd.

Inventor： FURUSE, Takeshi ,  KUMAGAWA, Yusuke

IPC: B21F35/00 ,  B21F3/06

公开(公告)号：EP3263242A1

公开(公告)日：2018-01-03

申请号：EP16755168.8

申请日：2016-02-04

Applicant: NHK Spring Co., Ltd.

Inventor： FURUSE, Takeshi ,  KUMAGAWA, Yusuke

IPC: B21F35/00 ,  B21F3/06 ,  B21F11/00

CPC classification number: B21F3/06 ,  B21F11/005 ,  B21F35/00

Abstract: A coiling machine (10) includes a material guide (12), first pin (13), second pin (14), pitch tool (15), cutting tool (16), heating device (17), temperature sensor (18), and controller. A material (2) continuously discharged from a tip (12a) of the material guide is bent between the first pin and the second pin to form an arc part (2a) between the first pin and the second pin. The controller select control data corresponding to the temperature of the material detected by the temperature sensor from a plurality of control data corresponding to a processing temperature. Then, the positions of the first pin and the second pin are controlled such that a radius of curvature of the arc part increases when the temperature of the material increases, and the position of the cutting tool is controlled such that a gap between the center of curvature (C1) of the arc part and the cutting tool increases.

Abstract translation: 卷取机10包括材料导向件12，第一销13，第二销14，间距工具15，切削工具16，加热装置17，温度传感器18， 和控制器。 从材料引导件的尖端（12a）连续排出的材料（2）在第一销和第二销之间弯曲以在第一销和第二销之间形成弧形部分（2a）。 控制器从对应于处理温度的多个控制数据中选择与由温度传感器检测到的材料的温度相对应的控制数据。 然后，控制第一销和第二销的位置，使得当材料的温度升高时，弧部分的曲率半径增加，并且控制切割工具的位置，使得中心 圆弧部分和切割工具的曲率（C1）增加。

公开(公告)号：EP3305433A1

公开(公告)日：2018-04-11

申请号：EP16802919.7

申请日：2016-04-11

Applicant: NHK Spring Co., Ltd.

Inventor： FURUSE, Takeshi ,  KUMAGAWA, Yusuke

IPC: B21F35/00 ,  B21F1/02 ,  B21F11/00 ,  B21F23/00

CPC classification number: B21F35/02 ,  B21F1/02 ,  B21F1/026 ,  B21F3/04 ,  B21F11/00 ,  B21F11/005 ,  B21F23/00 ,  B21F23/002 ,  B21F23/005 ,  B21F35/00 ,  F16F2224/0208 ,  F16F2226/04 ,  F16F2238/026

Abstract: The coil spring manufacturing device (1A) includes a first continuous material mounting portion (4), a second continuous material mounting portion (5), a straightener (7), a cutter (8) which cuts a material (2), a short material mounting portion (9) on which a short material (2') obtained by the cutting is mounted, and a coiling machine (10). The material (2) reeled out from a first continuous material (2A) or a second continuous material (2B) is cut by the cutter (8). The coil spring manufacturing device (1A) can switch a process among a first continuous material coiling process of manufacturing a coil spring by using the material (2) reeled out from the first continuous material (2A), a second continuous material coiling process of manufacturing a coil spring by using the material (2) reeled out from the second continuous material (2B), and a short material coiling process of manufacturing a coil spring by using the short material (2').

Abstract translation: 螺旋弹簧制造装置（1A）包括第一连续材料安装部分（4），第二连续材料安装部分（5），矫直机（7），切割材料（2）的切割器（8） 其上安装有通过切割获得的短材料（2'）的材料安装部分（9）以及卷绕机（10）。 从第一连续材料（2A）或第二连续材料（2B）中拉出的材料（2）被切割器（8）切割。 螺旋弹簧制造装置（1A）能够通过使用从第一连续材料（2A）放出的材料（2），第二连续材料卷绕工序来制造螺旋弹簧的第一连续材料卷绕工序 通过使用从第二连续材料（2B）放出的材料（2）的螺旋弹簧以及通过使用短材料（2'）制造螺旋弹簧的短材料卷绕过程。