JPS5624133A - Molding die - Google Patents

Molding die

Info

Publication number
JPS5624133A
JPS5624133A JP9988179A JP9988179A JPS5624133A JP S5624133 A JPS5624133 A JP S5624133A JP 9988179 A JP9988179 A JP 9988179A JP 9988179 A JP9988179 A JP 9988179A JP S5624133 A JPS5624133 A JP S5624133A
Authority
JP
Japan
Prior art keywords
rectified
flow passage
die
running
flow
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.)
Pending
Application number
JP9988179A
Other languages
Japanese (ja)
Inventor
Eiji Hattori
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.)
Asahi Dow Ltd
Asahi Chemical Industry Co Ltd
Original Assignee
Asahi Dow Ltd
Asahi Chemical Industry Co 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 Asahi Dow Ltd, Asahi Chemical Industry Co Ltd filed Critical Asahi Dow Ltd
Priority to JP9988179A priority Critical patent/JPS5624133A/en
Publication of JPS5624133A publication Critical patent/JPS5624133A/en
Pending 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
    • B29C48/335—Multiple annular extrusion nozzles in coaxial arrangement, e.g. for making multi-layered tubular articles
    • B29C48/336—Multiple annular extrusion nozzles in coaxial arrangement, e.g. for making multi-layered tubular articles the components merging one by one down streams in the die
    • B29C48/3363—Multiple annular extrusion nozzles in coaxial arrangement, e.g. for making multi-layered tubular articles the components merging one by one down streams in the die using a layered die, e.g. stacked discs
    • 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
    • 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
    • B29C48/16—Articles comprising two or more components, e.g. co-extruded layers
    • B29C48/18—Articles comprising two or more components, e.g. co-extruded layers the components being layers
    • B29C48/21—Articles comprising two or more components, e.g. co-extruded layers the components being layers the layers being joined at their surfaces

Landscapes

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

Abstract

PURPOSE:To obtain a uniform flow by providing a rectified flow passage coupling with a plurality of flow passages running almost in parallel with the direction of a central axis and almost counter with each other on a circular rectified die plate in a die for molding of a multilayer tube. CONSTITUTION:In a die for molding of a multilayer tube, an arrangement is such that a resin incoming from an inlet port 6 of a circular rectified die plate 4 passes a flow passage 8 running almost in parallel with a central axis, then passes inversely a flow passage 9 running counter thereto and goes out of a discharge port 7. These passages thus form a rectified flow passage, and the resin is unified circumferentially while it runs thrugh the rectified flow passage and is then discharged as a uniform flow circumferentially and minimized for unevenness in thickness. The die is then obtainable in the structure miniaturized and light at a moderate cost according to this constitution.
JP9988179A 1979-08-07 1979-08-07 Molding die Pending JPS5624133A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP9988179A JPS5624133A (en) 1979-08-07 1979-08-07 Molding die

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP9988179A JPS5624133A (en) 1979-08-07 1979-08-07 Molding die

Publications (1)

Publication Number Publication Date
JPS5624133A true JPS5624133A (en) 1981-03-07

Family

ID=14259137

Family Applications (1)

Application Number Title Priority Date Filing Date
JP9988179A Pending JPS5624133A (en) 1979-08-07 1979-08-07 Molding die

Country Status (1)

Country Link
JP (1) JPS5624133A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2593112A1 (en) * 1986-01-18 1987-07-24 Reifenhaeuser Masch EXTRUDER LINE FOR THE MANUFACTURE OF A MULTILAYER BREATHABLE SHEET
US4798526A (en) * 1986-07-17 1989-01-17 General Electric Company Modular extrusion head
US4895744A (en) * 1986-06-26 1990-01-23 General Electric Company Method of making a multi-layer parison
US5076776A (en) * 1989-02-28 1991-12-31 Mitsubishi Plastics Industries Limited Annular die for a lamination product
EP1418041A2 (en) * 2002-11-08 2004-05-12 TECHNE TECHNIPACK ENGINEERING ITALIA S.p.A. Extrusion head

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5128158A (en) * 1974-09-04 1976-03-09 Kyookura Kk

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5128158A (en) * 1974-09-04 1976-03-09 Kyookura Kk

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2593112A1 (en) * 1986-01-18 1987-07-24 Reifenhaeuser Masch EXTRUDER LINE FOR THE MANUFACTURE OF A MULTILAYER BREATHABLE SHEET
BE1001610A4 (en) * 1986-01-18 1989-12-19 Reifenhaeuser Masch EXTRUDER DIE FOR MANUFACTURING A MULTI-blown film.
US4895744A (en) * 1986-06-26 1990-01-23 General Electric Company Method of making a multi-layer parison
US4798526A (en) * 1986-07-17 1989-01-17 General Electric Company Modular extrusion head
US5076776A (en) * 1989-02-28 1991-12-31 Mitsubishi Plastics Industries Limited Annular die for a lamination product
EP1418041A2 (en) * 2002-11-08 2004-05-12 TECHNE TECHNIPACK ENGINEERING ITALIA S.p.A. Extrusion head
EP1418041A3 (en) * 2002-11-08 2007-11-07 TECHNE TECHNIPACK ENGINEERING ITALIA S.p.A. Extrusion head

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