FR2263876A1 - Blow moulding mandrel with annular air outlet(s) - to cause progressive detachment of the parison - Google Patents

Blow moulding mandrel with annular air outlet(s) - to cause progressive detachment of the parison

Info

Publication number
FR2263876A1
FR2263876A1 FR7508160A FR7508160A FR2263876A1 FR 2263876 A1 FR2263876 A1 FR 2263876A1 FR 7508160 A FR7508160 A FR 7508160A FR 7508160 A FR7508160 A FR 7508160A FR 2263876 A1 FR2263876 A1 FR 2263876A1
Authority
FR
France
Prior art keywords
parison
mandrel
blow moulding
air outlet
annular air
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.)
Withdrawn
Application number
FR7508160A
Other languages
French (fr)
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.)
SMS Siemag AG
Original Assignee
Schloemann Siemag AG
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 claimed from DE2412815A external-priority patent/DE2412815A1/en
Priority claimed from DE2421595A external-priority patent/DE2421595A1/en
Application filed by Schloemann Siemag AG filed Critical Schloemann Siemag AG
Publication of FR2263876A1 publication Critical patent/FR2263876A1/en
Withdrawn legal-status Critical Current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
    • B29C49/58—Blowing 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
    • B29C2949/00—Indexing scheme relating to blow-moulding
    • B29C2949/07—Preforms or parisons characterised by their configuration
    • B29C2949/0715—Preforms or parisons characterised by their configuration the preform having one end closed
    • 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

Landscapes

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

Abstract

Mandrel for blow moulding tool has a rigid neck used to calibrate the bore of the parison and a core tube which can extend to open an annular outlet between bevelled mating faces between the end of the neck and the shoulder to the tube. The outlet axis is divergent from the mandrel axis. The conical air jet issuing from the inclined annular die promotes early and uniform sepn. of the inner surface of the parison from the surface of the mandrel, producing parisons of radially uniform wall thickness. The short contact land length ensures a low and reproducible degree of mandrel/parison parison friction regardless of the length of the mandrel generated.
FR7508160A 1974-03-16 1975-03-10 Blow moulding mandrel with annular air outlet(s) - to cause progressive detachment of the parison Withdrawn FR2263876A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE2412815A DE2412815A1 (en) 1974-03-16 1974-03-16 Blow moulding mandrel with annular air outlet(s) - to cause progressive detachment of the parison
DE2421595A DE2421595A1 (en) 1974-05-04 1974-05-04 Blow moulding mandrel with annular air outlet(s) - to cause progressive detachment of the parison

Publications (1)

Publication Number Publication Date
FR2263876A1 true FR2263876A1 (en) 1975-10-10

Family

ID=25766810

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7508160A Withdrawn FR2263876A1 (en) 1974-03-16 1975-03-10 Blow moulding mandrel with annular air outlet(s) - to cause progressive detachment of the parison

Country Status (7)

Country Link
JP (1) JPS50135168A (en)
DD (1) DD119544A5 (en)
DK (1) DK102075A (en)
FR (1) FR2263876A1 (en)
IT (1) IT1034231B (en)
NL (1) NL7502860A (en)
SE (1) SE7502792L (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2656823A1 (en) * 1990-01-09 1991-07-12 Kerplas Snc PUNCH FOR INJECTION-BLOWING A HOLLOW BODY AND MACHINE USING SUCH A PUNCH.

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2656823A1 (en) * 1990-01-09 1991-07-12 Kerplas Snc PUNCH FOR INJECTION-BLOWING A HOLLOW BODY AND MACHINE USING SUCH A PUNCH.
EP0437381A1 (en) * 1990-01-09 1991-07-17 Kerplas Snc Mandrel for injection blow-moulding of a hollow article and machine using said mandrel
US5139410A (en) * 1990-01-09 1992-08-18 Kerplass.N.C. Parison stick for injection-blow moulding of a hollow body and machine using such a parison stick

Also Published As

Publication number Publication date
JPS50135168A (en) 1975-10-27
DD119544A5 (en) 1976-05-05
NL7502860A (en) 1975-09-18
DK102075A (en) 1975-09-17
SE7502792L (en) 1975-09-17
IT1034231B (en) 1979-09-10

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Legal Events

Date Code Title Description
ST Notification of lapse