JPS6438218A - Mold exterior airtight variable pressure molding apparatus - Google Patents

Mold exterior airtight variable pressure molding apparatus

Info

Publication number
JPS6438218A
JPS6438218A JP19419387A JP19419387A JPS6438218A JP S6438218 A JPS6438218 A JP S6438218A JP 19419387 A JP19419387 A JP 19419387A JP 19419387 A JP19419387 A JP 19419387A JP S6438218 A JPS6438218 A JP S6438218A
Authority
JP
Japan
Prior art keywords
die plate
protruding ring
ring
die
molding apparatus
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
JP19419387A
Other languages
Japanese (ja)
Inventor
Kazuo Yotsuya
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.)
HAYABUSA TEKKOSHO KK
Original Assignee
HAYABUSA TEKKOSHO 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 HAYABUSA TEKKOSHO KK filed Critical HAYABUSA TEKKOSHO KK
Priority to JP19419387A priority Critical patent/JPS6438218A/en
Publication of JPS6438218A publication Critical patent/JPS6438218A/en
Pending legal-status Critical Current

Links

Landscapes

  • Moulds For Moulding Plastics Or The Like (AREA)

Abstract

PURPOSE:To perform both of in-mold vacuum molding and the press molding in foam molding by one generally existing mold, by providing an airtight seal member composed of a packing ring and a protruding ring to the opposed surface of a die plate outside the vent hole opened to the opposed surface of one die plate. CONSTITUTION:A fixed die plate 1 and a movable die plate 2 are provided in opposed relationship and an airtight seal member composed of a packing ring 4 and a protruding ring 5 is provided to the opposed surfaces of the die plates 1, 2 outside the vent hole 3 formed to one of the die plates 1, 2. At first, when the movable die plate 2 is moved in the direction of the fixed die plate 1 from such an initial state that the die plates 1, 2 are separated from each other and the protruding ring 5 is also separated from the fixed plate 1 to uniformly press the leading end of the protruding ring 5 to the packing ring 4, an airtight space 6 is formed. Subsequently, the airtight space 6 is evacuated (pressurized) and this state is held to make it possible to bring the molds 7, 8 to a vacuum (pressurized) state.
JP19419387A 1987-08-03 1987-08-03 Mold exterior airtight variable pressure molding apparatus Pending JPS6438218A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP19419387A JPS6438218A (en) 1987-08-03 1987-08-03 Mold exterior airtight variable pressure molding apparatus

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP19419387A JPS6438218A (en) 1987-08-03 1987-08-03 Mold exterior airtight variable pressure molding apparatus

Publications (1)

Publication Number Publication Date
JPS6438218A true JPS6438218A (en) 1989-02-08

Family

ID=16320496

Family Applications (1)

Application Number Title Priority Date Filing Date
JP19419387A Pending JPS6438218A (en) 1987-08-03 1987-08-03 Mold exterior airtight variable pressure molding apparatus

Country Status (1)

Country Link
JP (1) JPS6438218A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH04110121A (en) * 1990-08-30 1992-04-10 Amp Japan Ltd Injection mold

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4918135U (en) * 1972-05-17 1974-02-15
JPS519058B2 (en) * 1971-11-02 1976-03-23
JPS59222321A (en) * 1983-06-01 1984-12-14 Matsushita Electric Ind Co Ltd Vacuum evacuation of die cavity and apparatus therefor

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS519058B2 (en) * 1971-11-02 1976-03-23
JPS4918135U (en) * 1972-05-17 1974-02-15
JPS59222321A (en) * 1983-06-01 1984-12-14 Matsushita Electric Ind Co Ltd Vacuum evacuation of die cavity and apparatus therefor

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH04110121A (en) * 1990-08-30 1992-04-10 Amp Japan Ltd Injection mold

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