JPS57144737A - Multi-molding method - Google Patents

Multi-molding method

Info

Publication number
JPS57144737A
JPS57144737A JP2972681A JP2972681A JPS57144737A JP S57144737 A JPS57144737 A JP S57144737A JP 2972681 A JP2972681 A JP 2972681A JP 2972681 A JP2972681 A JP 2972681A JP S57144737 A JPS57144737 A JP S57144737A
Authority
JP
Japan
Prior art keywords
plastics
molded
mold
gate
back face
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
JP2972681A
Other languages
Japanese (ja)
Inventor
Akira Okashiro
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.)
OKASHIRO KANAGATA KOGYO KK
Original Assignee
OKASHIRO KANAGATA KOGYO 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 OKASHIRO KANAGATA KOGYO KK filed Critical OKASHIRO KANAGATA KOGYO KK
Priority to JP2972681A priority Critical patent/JPS57144737A/en
Publication of JPS57144737A publication Critical patent/JPS57144737A/en
Pending legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/16—Making multilayered or multicoloured articles

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Mechanical Engineering (AREA)
  • Injection Moulding Of Plastics Or The Like (AREA)

Abstract

PURPOSE:To make the back face nearly monochromic and prevent debonding of both plastics, by using the mold which lessens exposure of another plastics on the back face of the molded article, in time of multi-molding two kinds of different plastics. CONSTITUTION:The gate hole 16a necessary at the second process is provided to the core 16 and the gate pin 8b to be inserted in the gate hole 16a and the degassing hole pin 8c used at the first process are provided to the cavity 18 of the first process. The first process plastics is injection-molded in this mold and the molded object 112 is obtained. Then, at the second process the second process plastics is injection-molded in the cavity of the second process mold 22 and the mold core 16 and the molded article 114 is obtained. The back face of the obtained molded object exposes only the gate part 114a and the degassing hole 114b and is nearly monochromic. It is used as the wristwarch band.
JP2972681A 1981-03-02 1981-03-02 Multi-molding method Pending JPS57144737A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2972681A JPS57144737A (en) 1981-03-02 1981-03-02 Multi-molding method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2972681A JPS57144737A (en) 1981-03-02 1981-03-02 Multi-molding method

Publications (1)

Publication Number Publication Date
JPS57144737A true JPS57144737A (en) 1982-09-07

Family

ID=12284104

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2972681A Pending JPS57144737A (en) 1981-03-02 1981-03-02 Multi-molding method

Country Status (1)

Country Link
JP (1) JPS57144737A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2013012643A (en) * 2011-06-30 2013-01-17 Toyota Motor Corp Reactor and mold construction
CN110696278A (en) * 2019-10-22 2020-01-17 广东乐心医疗电子股份有限公司 Multicolor rubber belt body, preparation method thereof and wearable device

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2013012643A (en) * 2011-06-30 2013-01-17 Toyota Motor Corp Reactor and mold construction
CN110696278A (en) * 2019-10-22 2020-01-17 广东乐心医疗电子股份有限公司 Multicolor rubber belt body, preparation method thereof and wearable device
WO2021077499A1 (en) * 2019-10-22 2021-04-29 广东乐心医疗电子股份有限公司 Multi-color rubber belt body and manufacturing method therefor, and wearable device

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