JPS57129724A - Method and mechanism for blow molding of product with curved face - Google Patents

Method and mechanism for blow molding of product with curved face

Info

Publication number
JPS57129724A
JPS57129724A JP1654981A JP1654981A JPS57129724A JP S57129724 A JPS57129724 A JP S57129724A JP 1654981 A JP1654981 A JP 1654981A JP 1654981 A JP1654981 A JP 1654981A JP S57129724 A JPS57129724 A JP S57129724A
Authority
JP
Japan
Prior art keywords
parison
cavity
molding
air
compressor
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
JP1654981A
Other languages
Japanese (ja)
Inventor
Ushigoro Sumitomo
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to JP1654981A priority Critical patent/JPS57129724A/en
Publication of JPS57129724A publication Critical patent/JPS57129724A/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
    • B29C49/00—Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mould; Apparatus therefor
    • B29C49/42—Component parts, details or accessories; Auxiliary operations
    • B29C49/48—Moulds
    • B29C49/52—Moulds having decorating or printing means
    • 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
    • B29C49/00—Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mould; Apparatus therefor
    • B29C49/42—Component parts, details or accessories; Auxiliary operations
    • B29C49/48—Moulds
    • B29C49/4823—Moulds with incorporated heating or cooling means

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Mechanical Engineering (AREA)
  • Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
  • Moulds For Moulding Plastics Or The Like (AREA)
  • Blow-Moulding Or Thermoforming Of Plastics Or The Like (AREA)

Abstract

PURPOSE:To exactly form a molding with an acutely curved face by a method in which a parison is contacted with the hot cavity of molds being heated and molded while keeping it in a fluidal state. CONSTITUTION:Split molds 5 are heated by electrically energizing heaters 11, and then a parison P is extruded into the split molds 5 being separated and lowered. Then, when putting the split molds 5 having the parison P inside together by means of oil-pressure cylinders 6, a given cavity is formed and an air pin 14 is fixed between paired blow port halve faces 10. Then, compressed air from a compressor 22 is blown into the parison P inside the cavity through an air blow-out port by actuating a solenoid valve 21 in such a way as to expand the parison P until it comes into contact with the faces of the cavity. At this time, the synthetic resin contacted with the faces of the cavity is expanded into the corners of a curved face and molded. Then, an electromagnetic valve 27 is opened and the valve 21 is switched to connect the compressor 24 with a pipe 19, whereupon high-pressure air inside the molding is discharged to the outside, cold air of the compressor 24 is blown into the molding, and the molding is thus cooled and hardened.
JP1654981A 1981-02-06 1981-02-06 Method and mechanism for blow molding of product with curved face Pending JPS57129724A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1654981A JPS57129724A (en) 1981-02-06 1981-02-06 Method and mechanism for blow molding of product with curved face

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1654981A JPS57129724A (en) 1981-02-06 1981-02-06 Method and mechanism for blow molding of product with curved face

Publications (1)

Publication Number Publication Date
JPS57129724A true JPS57129724A (en) 1982-08-11

Family

ID=11919348

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1654981A Pending JPS57129724A (en) 1981-02-06 1981-02-06 Method and mechanism for blow molding of product with curved face

Country Status (1)

Country Link
JP (1) JPS57129724A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63218332A (en) * 1987-03-09 1988-09-12 Beishin Kogyo Kk Method for blow molding synthetic resin
JPH0372419U (en) * 1989-11-17 1991-07-22
JP2016043563A (en) * 2014-08-22 2016-04-04 株式会社Fts Air supply device for blow molding
EP3319780B1 (en) 2015-07-08 2019-08-28 Sidel Participations Moulding device for a machine for producing containers from thermoplastic material
CN111687314A (en) * 2020-06-20 2020-09-22 滁州现代模具股份有限公司 Refrigerator cabinet door production mold closely attached to sealing strip

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63218332A (en) * 1987-03-09 1988-09-12 Beishin Kogyo Kk Method for blow molding synthetic resin
JPH0566852B2 (en) * 1987-03-09 1993-09-22 Beishin Kogyo Kk
JPH0372419U (en) * 1989-11-17 1991-07-22
JP2016043563A (en) * 2014-08-22 2016-04-04 株式会社Fts Air supply device for blow molding
EP3319780B1 (en) 2015-07-08 2019-08-28 Sidel Participations Moulding device for a machine for producing containers from thermoplastic material
CN111687314A (en) * 2020-06-20 2020-09-22 滁州现代模具股份有限公司 Refrigerator cabinet door production mold closely attached to sealing strip

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