JPS5619730A - Molding die for blow molding preventing uneven wall thickness - Google Patents

Molding die for blow molding preventing uneven wall thickness

Info

Publication number
JPS5619730A
JPS5619730A JP9371879A JP9371879A JPS5619730A JP S5619730 A JPS5619730 A JP S5619730A JP 9371879 A JP9371879 A JP 9371879A JP 9371879 A JP9371879 A JP 9371879A JP S5619730 A JPS5619730 A JP S5619730A
Authority
JP
Japan
Prior art keywords
parison
insulating material
heat insulating
metal mold
wall thickness
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.)
Granted
Application number
JP9371879A
Other languages
Japanese (ja)
Other versions
JPS6148412B2 (en
Inventor
Tetsuo Shiitani
Kazuyoshi Takeuchi
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
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 filed Critical Toyota Motor Corp
Priority to JP9371879A priority Critical patent/JPS5619730A/en
Publication of JPS5619730A publication Critical patent/JPS5619730A/en
Publication of JPS6148412B2 publication Critical patent/JPS6148412B2/ja
Granted 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
    • B29C33/00—Moulds or cores; Details thereof or accessories therefor
    • B29C33/02—Moulds or cores; Details thereof or accessories therefor with incorporated heating or cooling 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
    • 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
    • B29C49/64—Heating or cooling preforms, parisons or blown articles
    • 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
    • B29C49/64—Heating or cooling preforms, parisons or blown articles
    • B29C49/6409—Thermal conditioning of preforms
    • B29C49/6463—Thermal conditioning of preforms by contact heating or cooling, e.g. mandrels or cores specially adapted for heating or cooling preforms
    • B29C49/6464—Heating
    • 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
    • B29C49/64—Heating or cooling preforms, parisons or blown articles
    • B29C49/6409—Thermal conditioning of preforms
    • B29C49/6463—Thermal conditioning of preforms by contact heating or cooling, e.g. mandrels or cores specially adapted for heating or cooling preforms
    • B29C49/6465—Cooling
    • 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

Abstract

PURPOSE:To eliminate an uneven wall thickness of a blow molding hollow body by attaching a nonmetallic heat insulating material to the part which a parison inside a metal mold touches initially. CONSTITUTION:A nonmetallic heat insulating material 7 is attached to the part A which the parison inside 2' of blow forming metal dies 3' and 4' touch initially so as to prevent hasty cooling of a parison touching part. The heat insulating material 7 is made, for instance, of woven fabric such as ethylene tetrafluoride polymer which is woven in such as manner that many fine hairs 7' are erected on the surface thereof. On the occasion of forming, the parison 5 heated at a fixed temperature touches initially the part A inside 2' of the metal mold. However, it touches the inside 2' of the metal mold through the intermediary of the heat insulating material 7 and therefore the surface of the parison 5 is not cooled hastily, thereby the viscosity thereof is also kept in a low state. Accordingly, the parison 5 keeps its fluidity and is extended fully evenly at the part A, thereby the parison is shaped having a hollow state of uniform wall thickness throughout the inside surface of the metal mold.
JP9371879A 1979-07-25 1979-07-25 Molding die for blow molding preventing uneven wall thickness Granted JPS5619730A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP9371879A JPS5619730A (en) 1979-07-25 1979-07-25 Molding die for blow molding preventing uneven wall thickness

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP9371879A JPS5619730A (en) 1979-07-25 1979-07-25 Molding die for blow molding preventing uneven wall thickness

Publications (2)

Publication Number Publication Date
JPS5619730A true JPS5619730A (en) 1981-02-24
JPS6148412B2 JPS6148412B2 (en) 1986-10-24

Family

ID=14090188

Family Applications (1)

Application Number Title Priority Date Filing Date
JP9371879A Granted JPS5619730A (en) 1979-07-25 1979-07-25 Molding die for blow molding preventing uneven wall thickness

Country Status (1)

Country Link
JP (1) JPS5619730A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57181104A (en) * 1981-04-16 1982-11-08 Gen Electric Coil assembly to be insulated and method of producing same

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5244263U (en) * 1975-09-23 1977-03-29

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5244263B2 (en) * 1973-03-24 1977-11-07

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5244263U (en) * 1975-09-23 1977-03-29

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57181104A (en) * 1981-04-16 1982-11-08 Gen Electric Coil assembly to be insulated and method of producing same
JPH0554242B2 (en) * 1981-04-16 1993-08-12 Gen Electric

Also Published As

Publication number Publication date
JPS6148412B2 (en) 1986-10-24

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