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1. WO2020138376 - COILING MACHINE, METHOD FOR MANUFACTURING COIL SPRING, AND COIL SPRING

Publication Number WO/2020/138376
Publication Date 02.07.2020
International Application No. PCT/JP2019/051329
International Filing Date 26.12.2019
IPC
B21F 3/02 2006.1
BPERFORMING OPERATIONS; TRANSPORTING
21MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
FWORKING OR PROCESSING OF METAL WIRE
3Coiling wire into particular forms
02helically
B21F 3/06 2006.1
BPERFORMING OPERATIONS; TRANSPORTING
21MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
FWORKING OR PROCESSING OF METAL WIRE
3Coiling wire into particular forms
02helically
06internally on a hollow form
B21F 11/00 2006.1
BPERFORMING OPERATIONS; TRANSPORTING
21MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
FWORKING OR PROCESSING OF METAL WIRE
11Cutting wire
B21F 35/00 2006.1
BPERFORMING OPERATIONS; TRANSPORTING
21MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
FWORKING OR PROCESSING OF METAL WIRE
35Making springs from wire
CPC
B21F 11/00
BPERFORMING OPERATIONS; TRANSPORTING
21MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
FWORKING OR PROCESSING OF METAL WIRE
11Cutting wire
B21F 3/02
BPERFORMING OPERATIONS; TRANSPORTING
21MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
FWORKING OR PROCESSING OF METAL WIRE
3Coiling wire into particular forms
02helically
B21F 3/06
BPERFORMING OPERATIONS; TRANSPORTING
21MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
FWORKING OR PROCESSING OF METAL WIRE
3Coiling wire into particular forms
02helically
06internally on a hollow form
B21F 35/00
BPERFORMING OPERATIONS; TRANSPORTING
21MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
FWORKING OR PROCESSING OF METAL WIRE
35Making springs from wire
Applicants
  • 日本発條株式会社 NHK SPRING CO., LTD. [JP]/[JP]
Inventors
  • 古瀬 武志 FURUSE, Takeshi
  • 萩原 大輝 HAGIWARA, Daiki
  • 佐藤 拓也 SATO, Takuya
  • 山内 雄一郎 YAMAUCHI, Yuichiro
Agents
  • 特許業務法人スズエ国際特許事務所 S & S INTERNATIONAL PPC
Priority Data
2018-24670928.12.2018JP
Publication Language Japanese (JA)
Filing Language Japanese (JA)
Designated States
Title
(EN) COILING MACHINE, METHOD FOR MANUFACTURING COIL SPRING, AND COIL SPRING
(FR) MACHINE D'ENROULEMENT, PROCÉDÉ DE FABRICATION D'UN RESSORT HÉLICOÏDAL ET RESSORT HÉLICOÏDAL
(JA) コイリングマシンと、コイルばねの製造方法と、コイルばね
Abstract
(EN)
A coiling machine (10) is provided with feed rollers (11a, 11b) for moving a wire (1), a wire guide (12), a first forming roller (13), a second forming roller (14), a pitch tool (21), a cutting mechanism (23), and a support mechanism (24) for supporting the wire (1). The cutting mechanism (23) has a cutting rotor (22). The wire (1) emerging from the wire guide (12) is formed into a helical shape by the first forming roller (13), the second forming roller (14), and the pitch tool (21). When a length corresponding to a single coil spring is formed, the cutting rotor (22) moves in the radial direction of the wire (1), and the wire (1) is thereby cut. Between the second forming roller (14) and the pitch tool (21), the cutting rotor (22) cuts the wire (1) supported by the support mechanism (24), in the radial direction of the wire (1).
(FR)
La présente invention concerne une machine d'enroulement (10) pourvue de rouleaux d'alimentation (11a, 11b) pour déplacer un fil (1), un guide-fil (12), un premier rouleau de formage (13), un second rouleau de formage (14), un outil de tangage (21), un mécanisme de coupe (23) et un mécanisme de support (24) pour supporter le fil (1). Le mécanisme de coupe (23) comporte un rotor de coupe (22). Le fil (1) sortant du guide-fil (12) est formé en une forme hélicoïdale par le premier rouleau de formage (13), le second rouleau de formage (14) et l'outil de tangage (21). Lorsqu'une longueur correspondant à un ressort hélicoïdal unique est formée, le rotor de coupe (22) se déplace dans la direction radiale du fil (1) et le fil (1) est ainsi coupé. Entre le second rouleau de formage (14) et l'outil de tangage (21), le rotor de coupe (22) coupe le fil (1) supporté par le mécanisme de support (24) dans la direction radiale du fil (1).
(JA)
コイリングマシン(10)は、ワイヤ(1)を移動させる送りローラ(11a,11b)と、ワイヤガイド(12)と、第1成形ローラ(13)と、第2成形ローラ(14)と、ピッチツール(21)と、切断機構(23)と、ワイヤ(1)を支持する支持機構(24)とを備えている。切断機構(23)は切断回転体(22)を有している。ワイヤガイド(12)から出てきたワイヤ(1)が、第1成形ローラ(13)と第2成形ローラ(14)とピッチツール(21)とによって螺旋形に成形される。コイルばね1個分の長さが成形されたら、切断回転体(22)がワイヤ(1)の径方向に移動することによってワイヤ(1)が切断される。切断回転体(22)は、支持機構(24)によって支持されたワイヤ(1)を、第2成形ローラ(14)とピッチツール(21)との間でワイヤ(1)の径方向に切断する。
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