Title:
INJECTION DEVICE OF INJECTION MOLDING MACHINE FOR FOAM MOLDING
Document Type and Number:
WIPO Patent Application WO/2018/211863
Kind Code:
A1
Abstract:
An injection device (4) is provided with: a heating cylinder (31) in which a screw (34) is accommodated; a heating cylinder head (32) provided at a tip end of the heating cylinder; and an injection nozzle (33) coupled to a tip end of the heating cylinder head. The heating cylinder head accommodates a sleeve (61) partially made of porous sintered metal material, and a needle (62) partially made of porous sintered metal material is arranged inside a center hole (61d) formed in the sleeve. Thus, a physical foaming agent supplied from a physical foaming agent supplying device (5) is introduced into a plasticized resin stored in a metering resin storing part (54), from both the outer peripheral side and the inner peripheral side of the center hole.
Inventors:
SAWADA YASUTAKE (JP)
INOUE AKIRA (JP)
INOUE AKIRA (JP)
Application Number:
PCT/JP2018/015048
Publication Date:
November 22, 2018
Filing Date:
April 10, 2018
Export Citation:
Assignee:
TOYO MACHINERY & METAL (JP)
International Classes:
B29C44/42; B29C45/18; B29K101/12
Foreign References:
JP2012232558A | 2012-11-29 | |||
JP2008049704A | 2008-03-06 | |||
JP2008001015A | 2008-01-10 | |||
JP2008149717A | 2008-07-03 |
Attorney, Agent or Firm:
THE PATENT BODY CORPORATE TAKEWA INTERNATIONAL PATENT OFFICE (JP)
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