GB918946A - An improved extrusion device for use in blow-moulding apparatus - Google Patents

An improved extrusion device for use in blow-moulding apparatus

Info

Publication number
GB918946A
GB918946A GB44096/61A GB4409661A GB918946A GB 918946 A GB918946 A GB 918946A GB 44096/61 A GB44096/61 A GB 44096/61A GB 4409661 A GB4409661 A GB 4409661A GB 918946 A GB918946 A GB 918946A
Authority
GB
United Kingdom
Prior art keywords
cam
mandrel
moved
extrusion device
blow
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.)
Expired
Application number
GB44096/61A
Inventor
Michael Grebowiec
John Albert
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.)
Dart Industries Inc
Original Assignee
Rexall Drug and Chemical Co
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 Rexall Drug and Chemical Co filed Critical Rexall Drug and Chemical Co
Priority to GB44096/61A priority Critical patent/GB918946A/en
Publication of GB918946A publication Critical patent/GB918946A/en
Expired 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
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/25—Component parts, details or accessories; Auxiliary operations
    • B29C48/30—Extrusion nozzles or dies
    • B29C48/32—Extrusion nozzles or dies with annular openings, e.g. for forming tubular articles
    • B29C48/325—Extrusion nozzles or dies with annular openings, e.g. for forming tubular articles being adjustable, i.e. having adjustable exit sections
    • 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
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
    • B29C48/09—Articles with cross-sections having partially or fully enclosed cavities, e.g. pipes or channels
    • 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
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
    • B29C48/09—Articles with cross-sections having partially or fully enclosed cavities, e.g. pipes or channels
    • B29C48/10—Articles with cross-sections having partially or fully enclosed cavities, e.g. pipes or channels flexible, e.g. blown foils

Landscapes

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

Abstract

918,946. Extruding tubes for blow moulding. REXALL DRUG & CHEMICAL CO. Dec. 8, 1961, No. 44096/61. Class 87(2). An extrusion device for use in blow moulding includes a mandrel moved by the engagement of a moving cam with a cam follower operatively connected to the mandrel, to vary the wall thickness of the extruded tube during extrusion. Plastic is forced into the extrusion head 11 through the openings 14 and a tapered mandrel 22 is moved up and down within the head 11 by a lever 32 which rooks about the pivot 32b. and whose precise position is controlled by the reciprocating cam 60 and the spring 45. The cam 60 is supported by roller 54, and is moved to and fro by the hydraulic ram 55. Provision is made for adjusting the various components, and other arrangements of mandrel, pivot, cam and spring are described.
GB44096/61A 1961-12-08 1961-12-08 An improved extrusion device for use in blow-moulding apparatus Expired GB918946A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB44096/61A GB918946A (en) 1961-12-08 1961-12-08 An improved extrusion device for use in blow-moulding apparatus

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB44096/61A GB918946A (en) 1961-12-08 1961-12-08 An improved extrusion device for use in blow-moulding apparatus

Publications (1)

Publication Number Publication Date
GB918946A true GB918946A (en) 1963-02-20

Family

ID=10431757

Family Applications (1)

Application Number Title Priority Date Filing Date
GB44096/61A Expired GB918946A (en) 1961-12-08 1961-12-08 An improved extrusion device for use in blow-moulding apparatus

Country Status (1)

Country Link
GB (1) GB918946A (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3256563A (en) * 1963-11-18 1966-06-21 Owens Illinois Glass Co Adjustable extrusion orifice structure
US3276075A (en) * 1963-11-04 1966-10-04 Norman F Harwood Extrusion apparatus
US3327350A (en) * 1964-09-30 1967-06-27 Sterling Extruder Corp Apparatus for parison programming
US3343210A (en) * 1963-10-15 1967-09-26 Rexall Drug Chemical Means for the manufacture of plastic containers
CN112622251A (en) * 2020-12-30 2021-04-09 重庆瑞霆塑胶有限公司 Five-layer co-extrusion film blow molding machine
CN116660054A (en) * 2023-05-17 2023-08-29 江苏建纬检验检测有限公司 Reinforcing bar intensity check out test set for quality testing

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3343210A (en) * 1963-10-15 1967-09-26 Rexall Drug Chemical Means for the manufacture of plastic containers
US3276075A (en) * 1963-11-04 1966-10-04 Norman F Harwood Extrusion apparatus
US3256563A (en) * 1963-11-18 1966-06-21 Owens Illinois Glass Co Adjustable extrusion orifice structure
US3327350A (en) * 1964-09-30 1967-06-27 Sterling Extruder Corp Apparatus for parison programming
DE1288297B (en) * 1964-09-30 1969-01-30 Sterling Extruder Corp Extrusion device for the production of hoses from thermoplastic material
CN112622251A (en) * 2020-12-30 2021-04-09 重庆瑞霆塑胶有限公司 Five-layer co-extrusion film blow molding machine
CN116660054A (en) * 2023-05-17 2023-08-29 江苏建纬检验检测有限公司 Reinforcing bar intensity check out test set for quality testing

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