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JPS5586721A - Structure of plastic inflation mold - Google Patents

Structure of plastic inflation mold

Info

Publication number
JPS5586721A
JPS5586721A JP15945778A JP15945778A JPS5586721A JP S5586721 A JPS5586721 A JP S5586721A JP 15945778 A JP15945778 A JP 15945778A JP 15945778 A JP15945778 A JP 15945778A JP S5586721 A JPS5586721 A JP S5586721A
Authority
JP
Japan
Prior art keywords
melted liquid
plastic
agitating
melted
component
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
JP15945778A
Other languages
Japanese (ja)
Inventor
Kotaro Hayashi
Ko Morihara
Koji Nakamura
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.)
JNC Engineering Co Ltd
Original Assignee
Chisso Engineering 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 Chisso Engineering Co Ltd filed Critical Chisso Engineering Co Ltd
Priority to JP15945778A priority Critical patent/JPS5586721A/en
Publication of JPS5586721A publication Critical patent/JPS5586721A/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
    • B29C48/36—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
    • 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
    • B29C48/25—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
    • 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
    • B29C48/69—Filters or screens for the moulding material
    • 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

Landscapes

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

Abstract

PURPOSE:To improve uniformalization and uneven thickness precision of an inflation film, by locating melted liquid agitation components before an extruding lip of a mold in a plastic melted liquid flow passage and before a plastic melted liquid distribution system or before either one of them. CONSTITUTION:Plastic resin melted and kneaded by an extruder is fed to a toroidal die via a coupling pipe 1 after passing through a filter, breaker plate. A melted liquid agitating component 3 is located before a distributing part 5 of the toroidal die 2, an agitating component 4 being also situated before an extruding lip 6. An uneven plastic melted liquid current is divided and united together repeatedly so that it can pass through first the primary melted liquid agitation component 3. Be- sides, since an agitating substance having infinite number of small gaps like a metal mesh filter has, a mean velocity of the liquid at an outlet is equalized at both a center and a wall part of a pipe. Furthermore, the secondary melted liquid agitating component 4 can finally remove the unevenness occurring at a toroidal distribution part positioned before the extruding lip 6.
JP15945778A 1978-12-25 1978-12-25 Structure of plastic inflation mold Pending JPS5586721A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP15945778A JPS5586721A (en) 1978-12-25 1978-12-25 Structure of plastic inflation mold

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP15945778A JPS5586721A (en) 1978-12-25 1978-12-25 Structure of plastic inflation mold

Publications (1)

Publication Number Publication Date
JPS5586721A true JPS5586721A (en) 1980-06-30

Family

ID=15694174

Family Applications (1)

Application Number Title Priority Date Filing Date
JP15945778A Pending JPS5586721A (en) 1978-12-25 1978-12-25 Structure of plastic inflation mold

Country Status (1)

Country Link
JP (1) JPS5586721A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0596606A (en) * 1991-03-22 1993-04-20 Reifenhaeuser Gmbh & Co Mas Fab Tool head for ejecting hose- or tube-like pre- formed product consisting of thermoplasticized plastic

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0596606A (en) * 1991-03-22 1993-04-20 Reifenhaeuser Gmbh & Co Mas Fab Tool head for ejecting hose- or tube-like pre- formed product consisting of thermoplasticized plastic

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