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1. WO2020194880 - INJECTION MOLDING MACHINE

Publication Number WO/2020/194880
Publication Date 01.10.2020
International Application No. PCT/JP2019/047034
International Filing Date 02.12.2019
IPC
B29C 45/20 2006.01
BPERFORMING OPERATIONS; TRANSPORTING
29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
45Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
17Component parts, details or accessories; Auxiliary operations
20Injection nozzles
B29C 45/27 2006.01
BPERFORMING OPERATIONS; TRANSPORTING
29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
45Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
17Component parts, details or accessories; Auxiliary operations
26Moulds
27Sprue channels
Applicants
  • 本田技研工業株式会社 HONDA MOTOR CO., LTD. [JP]/[JP]
Inventors
  • 安田 正博 YASUDA Masahiro
  • 岡留 直人 OKADOME Naoto
  • 川村 智彦 KAWAMURA Tomohiko
  • 毛利 弘 MOHRI Hiroshi
Agents
  • 特許業務法人創成国際特許事務所 SATO & ASSOCIATES
Priority Data
2019-05417622.03.2019JP
Publication Language Japanese (JA)
Filing Language Japanese (JA)
Designated States
Title
(EN) INJECTION MOLDING MACHINE
(FR) MACHINE DE MOULAGE PAR INJECTION
(JA) 射出成形装置
Abstract
(EN)
A hot nozzle 5 has an annular counterbore portion 52c that is recessed in the direction of an axis a in the end surface of a connection portion 52. An annular seal member 52d is installed in the counterbore portion 52c. The outer peripheral surface of the seal member 52d and the inner peripheral surface of the counterbore portion 52c face each other. The inner peripheral surface of the counterbore portion 52c and the outer peripheral surface of the seal member 52d form tapered surfaces that expand in diameter in the direction of the axis a approaching the hot-runner-box 4 side. The thermal expansion coefficient of the seal member 52d is greater than the thermal expansion coefficient of the part where the counterbore portion 52c is formed.
(FR)
Selon l'invention, une buse chaude 5 présente une partie de contre-alésage annulaire 52c qui est évidée dans la direction d'un axe a dans la surface d'extrémité d'une partie de raccordement 52. Un élément d'étanchéité annulaire 52d est installé dans la partie de contre-alésage 52c. La surface périphérique externe de l'élément d'étanchéité 52d et la surface périphérique interne de la partie de contre-alésage 52c se font face. La surface périphérique interne de la partie de contre-alésage 52c et la surface périphérique externe de l'élément d'étanchéité 52d forment des surfaces effilées qui se déploient en diamètre dans la direction de l'axe a en s'approchant du côté boîtier de canal chauffant 4. Le coefficient de dilatation thermique de l'élément d'étanchéité 52d est supérieur au coefficient de dilatation thermique de la partie où est formée la partie de contre-alésage 52c.
(JA)
ホットノズル5は、接続部52の端面に、軸線a方向で窪んでいる環状の座繰部52cを有する。座繰部52cには、環状のシール部材52dが設置される。シール部材52dの外周面と座繰部52cの内周面とは、対向している。座繰部52cの内周面及びシール部材52dの外周面は、軸線a方向で、ホットランナブロック4側に近づくにつれて拡径するテーパ面となっている。シール部材52dの熱膨張係数は、座繰部52cが形成されている部分の熱膨張係数よりも大きい。
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