JPS6411819A - Method and apparatus for blow-molding plastic tank - Google Patents

Method and apparatus for blow-molding plastic tank

Info

Publication number
JPS6411819A
JPS6411819A JP16724387A JP16724387A JPS6411819A JP S6411819 A JPS6411819 A JP S6411819A JP 16724387 A JP16724387 A JP 16724387A JP 16724387 A JP16724387 A JP 16724387A JP S6411819 A JPS6411819 A JP S6411819A
Authority
JP
Japan
Prior art keywords
films
parison
molds
end part
blowing
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
JP16724387A
Other languages
Japanese (ja)
Inventor
Masao Hara
Hideki Sato
Masakatsu Osugi
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.)
Mazda Motor Corp
Original Assignee
Mazda Motor Corp
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 Mazda Motor Corp filed Critical Mazda Motor Corp
Priority to JP16724387A priority Critical patent/JPS6411819A/en
Publication of JPS6411819A publication Critical patent/JPS6411819A/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
    • B29C49/08—Biaxial stretching during blow-moulding
    • B29C49/16—Biaxial stretching during blow-moulding using pressure difference for pre-stretching, e.g. pre-blowing
    • 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
    • B29C49/24—Lining or labelling
    • 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
    • B29C49/24—Lining or labelling
    • B29C2049/2404—Lining or labelling inside the article
    • 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
    • B29C49/02—Combined blow-moulding and manufacture of the preform or the parison
    • B29C49/04—Extrusion blow-moulding
    • 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
    • B29C49/02—Combined blow-moulding and manufacture of the preform or the parison
    • B29C49/04—Extrusion blow-moulding
    • B29C49/041—Extrusion blow-moulding using an accumulator head

Abstract

PURPOSE:To improve the adherence of films to the surface of a tank by stretching a parison, onto which the films are adhered, by a method wherein pre-blowing is done with low pressure under the state that molds are opened so as to bring the films into contact with the parison and at the same time the base end part and lower end part of the parison are respectively pinched and, after the molds are closed, main blowing is done. CONSTITUTION:A parison 2 and films 25 and 25 are brought into contact with each other by performing pre-blowing with a pressure lower than the customary pressure under the state that molds 4 and 4 are opened. At the same time, the base end part and lower end part of the parison are respectively pinched so as to apply tension to the films 25 and 25 and the parison 2. As a result, the deformation (or wrinkles) of the films 25 and 25 developing due to the heat shrinkage, which is produced by heat transmitted from the parison 2, can be stretched. Since main blowing is done with the customary pressure under the state that the molds 4 and 4 are closed after the stretching of said deformation, no wrinkle of the films 25 and 25 is left on the surface of a plastic tank and consequently the adherence of the films 25 and 25 to the surface of the tank is improved.
JP16724387A 1987-07-03 1987-07-03 Method and apparatus for blow-molding plastic tank Pending JPS6411819A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP16724387A JPS6411819A (en) 1987-07-03 1987-07-03 Method and apparatus for blow-molding plastic tank

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP16724387A JPS6411819A (en) 1987-07-03 1987-07-03 Method and apparatus for blow-molding plastic tank

Publications (1)

Publication Number Publication Date
JPS6411819A true JPS6411819A (en) 1989-01-17

Family

ID=15846113

Family Applications (1)

Application Number Title Priority Date Filing Date
JP16724387A Pending JPS6411819A (en) 1987-07-03 1987-07-03 Method and apparatus for blow-molding plastic tank

Country Status (1)

Country Link
JP (1) JPS6411819A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2005075002A (en) * 2003-09-03 2005-03-24 Ti Group Automotive Systems Llc Method for blow molding fuel tank and device using this method
US7921699B2 (en) 2008-01-11 2011-04-12 Denso Corporation Apparatus for detecting rotational position of internal combustion engine

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2005075002A (en) * 2003-09-03 2005-03-24 Ti Group Automotive Systems Llc Method for blow molding fuel tank and device using this method
EP1512516A3 (en) * 2003-09-03 2006-04-12 TI Group Automotive Systems, L.L.C. Method and apparatus for making a blow molded fuel tank
US7097445B2 (en) * 2003-09-03 2006-08-29 Ti Group Automotive Systems, L.L.C. Method and apparatus for making a blow molded fuel tank
US7921699B2 (en) 2008-01-11 2011-04-12 Denso Corporation Apparatus for detecting rotational position of internal combustion engine

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