FR2432928A1 - Prodn. of synthetic resin hollow mouldings, esp. bottles - by cutting extruded tube off between nozzle and holding point then closing end by action of mandrel - Google Patents

Prodn. of synthetic resin hollow mouldings, esp. bottles - by cutting extruded tube off between nozzle and holding point then closing end by action of mandrel

Info

Publication number
FR2432928A1
FR2432928A1 FR7823741A FR7823741A FR2432928A1 FR 2432928 A1 FR2432928 A1 FR 2432928A1 FR 7823741 A FR7823741 A FR 7823741A FR 7823741 A FR7823741 A FR 7823741A FR 2432928 A1 FR2432928 A1 FR 2432928A1
Authority
FR
France
Prior art keywords
mandrel
parison
nozzle
bottles
synthetic resin
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
FR7823741A
Other languages
French (fr)
Other versions
FR2432928B1 (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.)
Plastic Kogaku Kenkyusho KK
Original Assignee
Plastic Kogaku Kenkyusho 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
Priority to GB7832900A priority Critical patent/GB2027635B/en
Application filed by Plastic Kogaku Kenkyusho KK filed Critical Plastic Kogaku Kenkyusho KK
Priority to FR7823741A priority patent/FR2432928A1/en
Priority to DE19782835593 priority patent/DE2835593A1/en
Priority claimed from DE19782835593 external-priority patent/DE2835593A1/en
Publication of FR2432928A1 publication Critical patent/FR2432928A1/en
Priority to US06/147,284 priority patent/US4290994A/en
Application granted granted Critical
Publication of FR2432928B1 publication Critical patent/FR2432928B1/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
    • B29C49/04118—Means for supporting the extruded parison
    • 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
    • B29C49/42—Component parts, details or accessories; Auxiliary operations
    • 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
    • B29C49/4205—Handling means, e.g. transfer, loading or discharging 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
    • B29C49/4205—Handling means, e.g. transfer, loading or discharging means
    • B29C49/42093—Transporting apparatus, e.g. slides, wheels or conveyors
    • B29C49/42103—Vacuum suction pipes
    • 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
    • B29C49/4242—Means for deforming the parison prior to the blowing operation
    • B29C49/42421—Means for deforming the parison prior to the blowing operation before laying into the mould
    • B29C49/42424—Deforming or closing the preform ends, e.g. pinching and welding
    • 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
    • B29C49/22—Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mould; Apparatus therefor using multilayered preforms or parisons

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Mechanical Engineering (AREA)
  • Blow-Moulding Or Thermoforming Of Plastics Or The Like (AREA)

Abstract

In the production of synthetic resin hollow mouldings, such as bottles, the molten resin is extruded from a die in a form of tube, (a parison). It is cut off by a cutter blade and held in a mould. A fluid is blown into the parison to form a hollow product. The novelty is that the parison is held at a position away from the nozzle of the die and cut off at a position nearer to the nozzle than the holding point. The cut end of the parison is closed to form a bottom of the parison, by moving a mandrel inserted into the die, in such manner that the top end of the mandrel presses the end section of the parison into a mandrel receiver. Method reduces wastage of material.
FR7823741A 1978-08-10 1978-08-11 Prodn. of synthetic resin hollow mouldings, esp. bottles - by cutting extruded tube off between nozzle and holding point then closing end by action of mandrel Granted FR2432928A1 (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
GB7832900A GB2027635B (en) 1978-08-10 1978-08-10 Method of preparing parisons for blow moulding hollow bodies
FR7823741A FR2432928A1 (en) 1978-08-11 1978-08-11 Prodn. of synthetic resin hollow mouldings, esp. bottles - by cutting extruded tube off between nozzle and holding point then closing end by action of mandrel
DE19782835593 DE2835593A1 (en) 1978-08-10 1978-08-14 METHOD FOR MOLDING HOLLOW BODIES
US06/147,284 US4290994A (en) 1978-08-10 1980-05-06 Method of molding hollow bodies

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR7823741A FR2432928A1 (en) 1978-08-11 1978-08-11 Prodn. of synthetic resin hollow mouldings, esp. bottles - by cutting extruded tube off between nozzle and holding point then closing end by action of mandrel
DE19782835593 DE2835593A1 (en) 1978-08-10 1978-08-14 METHOD FOR MOLDING HOLLOW BODIES

Publications (2)

Publication Number Publication Date
FR2432928A1 true FR2432928A1 (en) 1980-03-07
FR2432928B1 FR2432928B1 (en) 1984-07-06

Family

ID=25775412

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7823741A Granted FR2432928A1 (en) 1978-08-10 1978-08-11 Prodn. of synthetic resin hollow mouldings, esp. bottles - by cutting extruded tube off between nozzle and holding point then closing end by action of mandrel

Country Status (1)

Country Link
FR (1) FR2432928A1 (en)

Also Published As

Publication number Publication date
FR2432928B1 (en) 1984-07-06

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Legal Events

Date Code Title Description
ST Notification of lapse