FR2215304A1 - Blow moulded plastics vessel - with central injection point at its base, is mechanically stretched before blowing - Google Patents

Blow moulded plastics vessel - with central injection point at its base, is mechanically stretched before blowing

Info

Publication number
FR2215304A1
FR2215304A1 FR7402568A FR7402568A FR2215304A1 FR 2215304 A1 FR2215304 A1 FR 2215304A1 FR 7402568 A FR7402568 A FR 7402568A FR 7402568 A FR7402568 A FR 7402568A FR 2215304 A1 FR2215304 A1 FR 2215304A1
Authority
FR
France
Prior art keywords
base
injection point
mould
blank
mandrel
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
FR7402568A
Other languages
French (fr)
Other versions
FR2215304B3 (en
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.)
Bekum Maschinenfabriken GmbH
Original Assignee
Bekum Maschinenfabriken GmbH
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 Bekum Maschinenfabriken GmbH filed Critical Bekum Maschinenfabriken GmbH
Publication of FR2215304A1 publication Critical patent/FR2215304A1/en
Application granted granted Critical
Publication of FR2215304B3 publication Critical patent/FR2215304B3/fr
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
    • 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
    • B29C49/08—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
    • B29C49/02—Combined blow-moulding and manufacture of the preform or the parison
    • B29C49/06—Injection 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
    • B29C49/08—Biaxial stretching during 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
    • B29C49/08—Biaxial stretching during blow-moulding
    • B29C49/10—Biaxial stretching during blow-moulding using mechanical means for prestretching
    • B29C49/12—Stretching rods
    • 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
    • B29C2049/023—Combined blow-moulding and manufacture of the preform or the parison using inherent heat of the preform, i.e. 1 step 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
    • B29C49/08—Biaxial stretching during blow-moulding
    • B29C49/10—Biaxial stretching during blow-moulding using mechanical means for prestretching
    • B29C49/122—Drive means therefor
    • B29C49/1229—Drive means therefor being a cam mechanism

Landscapes

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

Abstract

Thermoplastics articles are blow - moulded using the blowing mandrel for transferring the injection moulded blank to the blow - mould. The injection point for the blank is at the centre of the base, opposite the end of the mandrel. After transfer to the blow - mould, the mandrel is extended longitudinally, stretching the blank so that the centre of its base approaches the base of the mould; the blank is then blown to fill the mould, without further mechanical shaping, while the reaction from the blowing pressure pushes the extended mandrel back to its shortened position. The process keeps the injection point central and reduce asymmetry.
FR7402568A 1973-01-25 1974-01-25 Blow moulded plastics vessel - with central injection point at its base, is mechanically stretched before blowing Granted FR2215304A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE2303513A DE2303513A1 (en) 1973-01-25 1973-01-25 METHOD AND DEVICE FOR MANUFACTURING HOLLOW BODIES FROM THERMOPLASTIC PLASTIC ACCORDING TO THE INJECTION BLOW METHOD

Publications (2)

Publication Number Publication Date
FR2215304A1 true FR2215304A1 (en) 1974-08-23
FR2215304B3 FR2215304B3 (en) 1976-11-19

Family

ID=5869894

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7402568A Granted FR2215304A1 (en) 1973-01-25 1974-01-25 Blow moulded plastics vessel - with central injection point at its base, is mechanically stretched before blowing

Country Status (7)

Country Link
JP (1) JPS49110754A (en)
AU (1) AU6491874A (en)
BR (1) BR7400564D0 (en)
DE (1) DE2303513A1 (en)
ES (1) ES422583A1 (en)
FR (1) FR2215304A1 (en)
IT (1) IT1007092B (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2323516A1 (en) * 1975-09-10 1977-04-08 Standard Oil Co APPARATUS FOR ADJUSTING THE DISTRIBUTION OF PLASTIC MATERIAL IN THE MANUFACTURE OF BIAXIALLY ORIENTED PLASTIC CONTAINERS
EP0042132A1 (en) * 1980-06-16 1981-12-23 Henkel Kommanditgesellschaft auf Aktien Parison and forming tool for stretch blow-moulding
WO1995008430A1 (en) * 1993-09-24 1995-03-30 Continental Pet Technologies, Inc. Pulse blow method and apparatus for forming container with enhanced thermal stability
WO2007107822A2 (en) * 2006-03-17 2007-09-27 Sacmi Cooperativa Meccanici Imola Societa' Cooperativa Apparatuses and methods for manufacturing containers
US11135759B2 (en) * 2017-09-08 2021-10-05 Nissei Asb Machine Co., Ltd. Blow molding apparatus and blow molding method

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT1058446B (en) * 1975-03-17 1982-04-10 Monsanto Co MACHINE FOR CONTINUOUS FORMING MOLECULAR ORIENTED PLASTIC OBJECTS
CA1161614A (en) * 1979-07-05 1984-02-07 Thomas R. Haubert Blow moulding method and apparatus
US7588439B2 (en) * 2007-07-20 2009-09-15 Husky Injection Molding Systems Ltd. Compensating core for use with a molding system

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2323516A1 (en) * 1975-09-10 1977-04-08 Standard Oil Co APPARATUS FOR ADJUSTING THE DISTRIBUTION OF PLASTIC MATERIAL IN THE MANUFACTURE OF BIAXIALLY ORIENTED PLASTIC CONTAINERS
EP0042132A1 (en) * 1980-06-16 1981-12-23 Henkel Kommanditgesellschaft auf Aktien Parison and forming tool for stretch blow-moulding
WO1995008430A1 (en) * 1993-09-24 1995-03-30 Continental Pet Technologies, Inc. Pulse blow method and apparatus for forming container with enhanced thermal stability
US5474735A (en) * 1993-09-24 1995-12-12 Continental Pet Technologies, Inc. Pulse blow method for forming container with enhanced thermal stability
WO2007107822A2 (en) * 2006-03-17 2007-09-27 Sacmi Cooperativa Meccanici Imola Societa' Cooperativa Apparatuses and methods for manufacturing containers
WO2007107822A3 (en) * 2006-03-17 2008-05-08 Sacmi Apparatuses and methods for manufacturing containers
EP2360005A1 (en) * 2006-03-17 2011-08-24 SACMI Cooperativa Meccanici Imola Società Cooperativa Mould means
US8105072B2 (en) 2006-03-17 2012-01-31 Sacmi Cooperativa Meccanici Imola Societa' Cooperativa Apparatuses and methods for manufacturing containers
US8308473B2 (en) 2006-03-17 2012-11-13 Sacmi Cooperativa Meccaniciimola Societa' Cooperativa Apparatuses and methods for manufacturing containers
US8366436B2 (en) 2006-03-17 2013-02-05 Sacmi Cooperativa Meccanici Imola Societa' Cooperativa Apparatuses and methods for manufacturing containers
US11135759B2 (en) * 2017-09-08 2021-10-05 Nissei Asb Machine Co., Ltd. Blow molding apparatus and blow molding method

Also Published As

Publication number Publication date
BR7400564D0 (en) 1974-08-22
ES422583A1 (en) 1976-09-16
AU6491874A (en) 1975-07-31
DE2303513A1 (en) 1974-08-01
JPS49110754A (en) 1974-10-22
FR2215304B3 (en) 1976-11-19
IT1007092B (en) 1976-10-30

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Legal Events

Date Code Title Description
ST Notification of lapse