JPS5753330A - Molding method of foamable synthetic resin and mold therefor - Google Patents

Molding method of foamable synthetic resin and mold therefor

Info

Publication number
JPS5753330A
JPS5753330A JP55129445A JP12944580A JPS5753330A JP S5753330 A JPS5753330 A JP S5753330A JP 55129445 A JP55129445 A JP 55129445A JP 12944580 A JP12944580 A JP 12944580A JP S5753330 A JPS5753330 A JP S5753330A
Authority
JP
Japan
Prior art keywords
mold
synthetic resin
filled
sealing material
upper mold
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
JP55129445A
Other languages
Japanese (ja)
Inventor
Osamu Toyama
Nobukazu Fujii
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.)
Toyota Motor Corp
Original Assignee
Toyota Motor Corp
Toyota Jidosha 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 Toyota Motor Corp, Toyota Jidosha Kogyo KK filed Critical Toyota Motor Corp
Priority to JP55129445A priority Critical patent/JPS5753330A/en
Publication of JPS5753330A publication Critical patent/JPS5753330A/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
    • B29C44/00—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles
    • B29C44/34—Auxiliary operations
    • B29C44/58—Moulds
    • B29C44/588—Moulds with means for venting, e.g. releasing foaming gas

Landscapes

  • Moulds For Moulding Plastics Or The Like (AREA)
  • Casting Or Compression Moulding Of Plastics Or The Like (AREA)

Abstract

PURPOSE:To provide a synthetic resin foamed molding free from flash by a method wherein sealing material is filled in the gap between an upper and a lower mold and a mold having a breathable sheet is used inside gassing holes provided on the upper mold. CONSTITUTION:In a mold (an upper mold 11 is caught by a hinge 13 on one end of a lower mold 12 and the key-shaped clamp 17 of the upper mold is fixed to a retainer 23 of the lower mold on the other and) composed of the lower mold 12 and the upper mold 11 having gassing holes 18, sealing material 16 is filled in gap between the upper and the lower nold 11, 12 and a breathable sheet 24 is provided on the lower surface of the upper mold 11. Expandable synthetic resin material 15 is filled and expanded by said mold in a cavity 14 to provide a desired synthetic resin foam. At that time, expanded gas, air in the cavity, etc. are exhausted from gassing holes 18 through the breathable sheet 24 but the ejection of the expanded foam out of the mold is avoided by the sealing material 16, the sheet 24 to prevent flashes from production.
JP55129445A 1980-09-18 1980-09-18 Molding method of foamable synthetic resin and mold therefor Pending JPS5753330A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP55129445A JPS5753330A (en) 1980-09-18 1980-09-18 Molding method of foamable synthetic resin and mold therefor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP55129445A JPS5753330A (en) 1980-09-18 1980-09-18 Molding method of foamable synthetic resin and mold therefor

Publications (1)

Publication Number Publication Date
JPS5753330A true JPS5753330A (en) 1982-03-30

Family

ID=15009641

Family Applications (1)

Application Number Title Priority Date Filing Date
JP55129445A Pending JPS5753330A (en) 1980-09-18 1980-09-18 Molding method of foamable synthetic resin and mold therefor

Country Status (1)

Country Link
JP (1) JPS5753330A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5933125A (en) * 1982-08-19 1984-02-22 Toyo Rubber Chem Ind Co Ltd Manufacture of cushioning body
JPS59127737A (en) * 1983-01-11 1984-07-23 Achilles Corp Manufacture of heat insulating plate
JPS60130014U (en) * 1984-02-10 1985-08-31 株式会社東洋クオリティワン Mold for foam molding
JPS62144909A (en) * 1985-12-19 1987-06-29 Inoue Mtp Co Ltd Manufacturing method of cushioning body with bag-shaped section

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5933125A (en) * 1982-08-19 1984-02-22 Toyo Rubber Chem Ind Co Ltd Manufacture of cushioning body
JPS59127737A (en) * 1983-01-11 1984-07-23 Achilles Corp Manufacture of heat insulating plate
JPS60130014U (en) * 1984-02-10 1985-08-31 株式会社東洋クオリティワン Mold for foam molding
JPS62144909A (en) * 1985-12-19 1987-06-29 Inoue Mtp Co Ltd Manufacturing method of cushioning body with bag-shaped section

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