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GB987809A - Improvements in or relating to extrusion dies for producing tubing from synthetic plastics - Google Patents

Improvements in or relating to extrusion dies for producing tubing from synthetic plastics

Info

Publication number
GB987809A
GB987809A GB10035/63A GB1003563A GB987809A GB 987809 A GB987809 A GB 987809A GB 10035/63 A GB10035/63 A GB 10035/63A GB 1003563 A GB1003563 A GB 1003563A GB 987809 A GB987809 A GB 987809A
Authority
GB
United Kingdom
Prior art keywords
tubing
die
annular
flow path
extruded
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
GB10035/63A
Inventor
Peter Allan Morris
John Leslie Edward Cooper
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.)
COSHAM ENGINEERING DESIGNS Ltd
Original Assignee
COSHAM ENGINEERING DESIGNS Ltd
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 COSHAM ENGINEERING DESIGNS Ltd filed Critical COSHAM ENGINEERING DESIGNS Ltd
Priority to GB10035/63A priority Critical patent/GB987809A/en
Publication of GB987809A publication Critical patent/GB987809A/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
    • B29C48/34—Cross-head annular extrusion nozzles, i.e. for simultaneously receiving moulding material and the preform to be coated
    • 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
    • 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
    • B29C48/25—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

Landscapes

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

Abstract

987,809. Extrusion dies. COSHAM ENGINEERING DESIGNS Ltd. March 12, 1964 [March 13, 1963], No. 10035/63. Headings B5A and B5B. A crosshead extrusion die for preparing synthetic plastics tubing 21 comprises a flow channel 1 leading tangentially to an annular or involute stationary flow chamber 2 substantially encircling a rotatable die body 5A, 5B within which an annular flow path 4 leads from the flow chamber 2 to the concentric die lips 8 where the tubing is extruded. The annular flow path 4 includes a portion 7 of tapering cross-section. A plurality of flow paths 3 lead tangentially from chamber 2 to annular flow path 4. The die body 5A, 5B is rotatably mounted in bearing and sealing rings 10, and is driven from electric motor 15 through a chain drive and pinion wheel 19. Thermostatically controlled electrical heating jackets 11, 22 are provided. Cooling means for the extruded tubing pass through bore 20 in the die. The extruded tubing is collapsed to form a film.
GB10035/63A 1963-03-13 1963-03-13 Improvements in or relating to extrusion dies for producing tubing from synthetic plastics Expired GB987809A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB10035/63A GB987809A (en) 1963-03-13 1963-03-13 Improvements in or relating to extrusion dies for producing tubing from synthetic plastics

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB10035/63A GB987809A (en) 1963-03-13 1963-03-13 Improvements in or relating to extrusion dies for producing tubing from synthetic plastics

Publications (1)

Publication Number Publication Date
GB987809A true GB987809A (en) 1965-03-31

Family

ID=9960264

Family Applications (1)

Application Number Title Priority Date Filing Date
GB10035/63A Expired GB987809A (en) 1963-03-13 1963-03-13 Improvements in or relating to extrusion dies for producing tubing from synthetic plastics

Country Status (1)

Country Link
GB (1) GB987809A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3388426A (en) * 1966-06-09 1968-06-18 Gloucester Eng Co Inc Blown film die apparatus
US3440686A (en) * 1966-12-29 1969-04-29 Nat Distillers Chem Corp Extrusion die having angularly moving central mandrel
WO2005016627A1 (en) 2003-08-13 2005-02-24 Ruebbelke Ingo Nozzle head for an extruder
US7381042B2 (en) 2003-10-15 2008-06-03 Ruebbelke Ingo Nozzle head for an extruder

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3388426A (en) * 1966-06-09 1968-06-18 Gloucester Eng Co Inc Blown film die apparatus
US3440686A (en) * 1966-12-29 1969-04-29 Nat Distillers Chem Corp Extrusion die having angularly moving central mandrel
WO2005016627A1 (en) 2003-08-13 2005-02-24 Ruebbelke Ingo Nozzle head for an extruder
CN100515728C (en) * 2003-08-13 2009-07-22 英戈·鲁贝尔克 Nozzle head for an extruder
US7381042B2 (en) 2003-10-15 2008-06-03 Ruebbelke Ingo Nozzle head for an extruder

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