JPS5732918A - Multilayer circular die - Google Patents

Multilayer circular die

Info

Publication number
JPS5732918A
JPS5732918A JP10888680A JP10888680A JPS5732918A JP S5732918 A JPS5732918 A JP S5732918A JP 10888680 A JP10888680 A JP 10888680A JP 10888680 A JP10888680 A JP 10888680A JP S5732918 A JPS5732918 A JP S5732918A
Authority
JP
Japan
Prior art keywords
ditches
layer
mandrel
contacting
divided
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
JP10888680A
Other languages
Japanese (ja)
Other versions
JPS6364296B2 (en
Inventor
Kenkichi Murakami
Yoshio Kimura
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.)
PLAST KOGAKU KENKYUSHO KK
Original Assignee
PLAST 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
Application filed by PLAST KOGAKU KENKYUSHO KK filed Critical PLAST KOGAKU KENKYUSHO KK
Priority to JP10888680A priority Critical patent/JPS5732918A/en
Publication of JPS5732918A publication Critical patent/JPS5732918A/en
Publication of JPS6364296B2 publication Critical patent/JPS6364296B2/ja
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
    • 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
    • B29C48/36—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die
    • B29C48/50—Details of extruders
    • B29C48/695—Flow dividers, e.g. breaker plates
    • B29C48/70—Flow dividers, e.g. breaker plates comprising means for dividing, distributing and recombining melt flows
    • 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
    • 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
    • B29C48/337—Multiple annular extrusion nozzles in coaxial arrangement, e.g. for making multi-layered tubular articles the components merging at a common location
    • B29C48/338—Multiple annular extrusion nozzles in coaxial arrangement, e.g. for making multi-layered tubular articles the components merging at a common location using a die with concentric parts, e.g. rings, cylinders
    • 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
    • B29C48/25—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

Landscapes

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

Abstract

PURPOSE:To make a die extrude the film of uniform thickness by forming the connection channel corresponding to each layer so as to shift radius of radial direction and phase of angle each other behind the circular passages and making spatial arrangement of each layer easy so as to not to be interfered at each position by another layer. CONSTITUTION:The fluid-dynamically equal division is done is follows; the divided ditches 10, 11 for dividing each connection channel 4, 5 are provided on the parting section 7 contacting the feed block 3 and the spacer 6, and the divided ditches 17, 18 are on the parting section 16 contacting the base 15 of a mandrel 14. Resin flow moves from the base 15 of the mandrel 14 via the starting points 45, 55 into the spiral ditches 44, 54, then via the meeting point 26 of the circular passages 47, 57 and runs down in a circular passage 27 and is delivered from the delivery hole 28.
JP10888680A 1980-08-07 1980-08-07 Multilayer circular die Granted JPS5732918A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP10888680A JPS5732918A (en) 1980-08-07 1980-08-07 Multilayer circular die

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP10888680A JPS5732918A (en) 1980-08-07 1980-08-07 Multilayer circular die

Publications (2)

Publication Number Publication Date
JPS5732918A true JPS5732918A (en) 1982-02-22
JPS6364296B2 JPS6364296B2 (en) 1988-12-12

Family

ID=14496081

Family Applications (1)

Application Number Title Priority Date Filing Date
JP10888680A Granted JPS5732918A (en) 1980-08-07 1980-08-07 Multilayer circular die

Country Status (1)

Country Link
JP (1) JPS5732918A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60172518A (en) * 1984-02-17 1985-09-06 Purakoo:Kk Extrusion molding die
US4756682A (en) * 1986-05-16 1988-07-12 Blaise F Figuereo Machine for the extrusion of several materials at the same time
JP6039845B1 (en) * 2016-03-30 2016-12-07 株式会社湘南貿易 Inflation film forming die
EP2734353B1 (en) * 2011-07-20 2019-08-21 Plastika Kritis S.A. Concentric co - extrusion die and a method of extruding a multilayer thermoplastic film

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60172518A (en) * 1984-02-17 1985-09-06 Purakoo:Kk Extrusion molding die
US4756682A (en) * 1986-05-16 1988-07-12 Blaise F Figuereo Machine for the extrusion of several materials at the same time
EP2734353B1 (en) * 2011-07-20 2019-08-21 Plastika Kritis S.A. Concentric co - extrusion die and a method of extruding a multilayer thermoplastic film
JP6039845B1 (en) * 2016-03-30 2016-12-07 株式会社湘南貿易 Inflation film forming die

Also Published As

Publication number Publication date
JPS6364296B2 (en) 1988-12-12

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