TWO MATERIAL MOLDING METHOD, MOLD ASSEMBLY AND SPEAKER

Japanese Patent JP3561010

B2

PURPOSE: To widen the range of selection of molding conditions, realize stable molding and improve yield by a method wherein the position for the finished shape of a molded article is taken by moving an inner slider under the condition that a primary resin and a secondary resin are brought into contact with each other and then the secondary resin is pressed so as to joint the first member and the second member together.
CONSTITUTION: A cavity is formed by advancing a movable mold 23 and an inner slider 24 to a fixed mold 22 with a moving device 31. By charging a primary resin in the cavity, a first member is molded. Next, the other cavity is formed by retreating the inner slider 24 so as to be charged with a secondary resin in order to mold a second member. Then, the primary resin and the secondary resin are brought into contact with each other. At this time, since the inner slider 24 is retreated, enough amount of secondary resin can be charged in the other cavity. After the inner slider 24 is advanced so as to take the position of the finished shape of a molded article, the secondary resin is pressed so as to join the first member and the second member together.

WO/2017/081763	WAX INJECTION MOLDING DEVICE AND CASTING METHOD FOR ARTICLE USING WAX INJECTION MOLDING DEVICE
JPH10258449	MOLD CLOSING CONTROL METHOD OF INJECTION MOLDING MACHINE

Masahiko Hamaguchi
Hiroshi Koizumi
Nobuhiko Tokushige

JP25809294A

September 02, 2004

October 24, 1994

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浜口樹脂工業株式会社
ソニー株式会社
住友重機械工業株式会社

B29C45/64; B29C45/16; B29C45/56; H04R7/20; H04R31/00; B29K21/00; B29K101/00; (IPC1-7): B29C45/16; B29C45/56; B29C45/64; H04R7/20; H04R31/00

JP7162991A
JP7015793A
JP6262656A
JP6270196A

Makoto Kawai
Mamoru Shimizu

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