JPS61189914A - Insert molding of metallic tools and molds to be used - Google Patents

Insert molding of metallic tools and molds to be used

Info

Publication number
JPS61189914A
JPS61189914A JP3085785A JP3085785A JPS61189914A JP S61189914 A JPS61189914 A JP S61189914A JP 3085785 A JP3085785 A JP 3085785A JP 3085785 A JP3085785 A JP 3085785A JP S61189914 A JPS61189914 A JP S61189914A
Authority
JP
Japan
Prior art keywords
resin
cavity
injected
pressure
pressure pins
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP3085785A
Other languages
Japanese (ja)
Inventor
Masaharu Toyama
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
TOOYAMA SANGYO KK
Original Assignee
TOOYAMA SANGYO KK
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by TOOYAMA SANGYO KK filed Critical TOOYAMA SANGYO KK
Priority to JP3085785A priority Critical patent/JPS61189914A/en
Publication of JPS61189914A publication Critical patent/JPS61189914A/en
Pending legal-status Critical Current

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C45/00Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/14Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles
    • B29C45/14065Positioning or centering articles in the mould
    • B29C45/14073Positioning or centering articles in the mould using means being retractable during injection
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29KINDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2705/00Use of metals, their alloys or their compounds, for preformed parts, e.g. for inserts

Abstract

PURPOSE:To remove detects such as flashes, misregister of metallic inserts, etc. by holding the metallic inserts between pressure pins and supporting members, making primary injection of resin into a cavity and then making secondary injection of resin by backward operation of the pressure pins. CONSTITUTION:When resin is injected while holding metallic inserts 14, 14a firmly between the supporting members 15, 15a and the pressure pins 27, 27a the resin is injected primarily into the cavity 9 and then when the cylinder of a pressure structure part 26 is advanced, the operation plate 28 moves upward, as a result, the pressure pins 27, 27a are drawn out of the cavity 9. When resin is injected secondarily, resin enters the empty part also made by the pressure pins 27, 27a to be injected into the whole range of the cavity 9. In this manner, resin creeps-in around by injecting pressure to the surface side of the misregistered metallic inserts 14, 14a to prevent defectives from occurring.
JP3085785A 1985-02-18 1985-02-18 Insert molding of metallic tools and molds to be used Pending JPS61189914A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP3085785A JPS61189914A (en) 1985-02-18 1985-02-18 Insert molding of metallic tools and molds to be used

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP3085785A JPS61189914A (en) 1985-02-18 1985-02-18 Insert molding of metallic tools and molds to be used

Publications (1)

Publication Number Publication Date
JPS61189914A true JPS61189914A (en) 1986-08-23

Family

ID=12315384

Family Applications (1)

Application Number Title Priority Date Filing Date
JP3085785A Pending JPS61189914A (en) 1985-02-18 1985-02-18 Insert molding of metallic tools and molds to be used

Country Status (1)

Country Link
JP (1) JPS61189914A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007205833A (en) * 2006-02-01 2007-08-16 Daiichi Seiko Kk Water meter and method for manufacturing the same
FR2977522A1 (en) * 2011-07-05 2013-01-11 Faurecia Bloc Avant Method for manufacturing composite component i.e. car's front part, involves moving holding member of portion of mold against insert to ensure pressing of insert on positioning member, and injecting plastic material into mold over insert

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007205833A (en) * 2006-02-01 2007-08-16 Daiichi Seiko Kk Water meter and method for manufacturing the same
FR2977522A1 (en) * 2011-07-05 2013-01-11 Faurecia Bloc Avant Method for manufacturing composite component i.e. car's front part, involves moving holding member of portion of mold against insert to ensure pressing of insert on positioning member, and injecting plastic material into mold over insert

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