JPS5764524A - Device for controlling thickness of parison - Google Patents

Device for controlling thickness of parison

Info

Publication number
JPS5764524A
JPS5764524A JP55140012A JP14001280A JPS5764524A JP S5764524 A JPS5764524 A JP S5764524A JP 55140012 A JP55140012 A JP 55140012A JP 14001280 A JP14001280 A JP 14001280A JP S5764524 A JPS5764524 A JP S5764524A
Authority
JP
Japan
Prior art keywords
slit
parison
thickness
mandrel
slice
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
JP55140012A
Other languages
Japanese (ja)
Other versions
JPS6328766B2 (en
Inventor
Akihiro Nomura
Hisahiko Fukase
Sadahiko Shintani
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.)
IHI Corp
Original Assignee
Ishikawajima Harima Heavy Industries 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 Ishikawajima Harima Heavy Industries Co Ltd filed Critical Ishikawajima Harima Heavy Industries Co Ltd
Priority to JP55140012A priority Critical patent/JPS5764524A/en
Publication of JPS5764524A publication Critical patent/JPS5764524A/en
Publication of JPS6328766B2 publication Critical patent/JPS6328766B2/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
    • B29C48/30—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
    • B29C48/25—Component parts, details or accessories; Auxiliary operations
    • B29C48/30—Extrusion nozzles or dies
    • B29C48/302—Extrusion nozzles or dies 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
    • B29C48/25—Component parts, details or accessories; Auxiliary operations
    • B29C48/92—Measuring, controlling or regulating
    • 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
    • B29C49/00—Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mould; Apparatus therefor
    • B29C49/02—Combined blow-moulding and manufacture of the preform or the parison
    • B29C49/04—Extrusion blow-moulding
    • 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
    • B29C2948/00—Indexing scheme relating to extrusion moulding
    • B29C2948/92—Measuring, controlling or regulating
    • B29C2948/92504—Controlled parameter
    • B29C2948/92609—Dimensions
    • B29C2948/92647—Thickness
    • 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
    • B29C2948/00—Indexing scheme relating to extrusion moulding
    • B29C2948/92—Measuring, controlling or regulating
    • B29C2948/92819—Location or phase of control
    • B29C2948/92857—Extrusion unit
    • B29C2948/92904—Die; Nozzle zone

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)
  • Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)

Abstract

PURPOSE:To control the thickness of a parison by providing a slice lip at an annular parison extruding slit formed by a mandrel and a nozzle, and projecting this slice lip into the slit. CONSTITUTION:A resin 3 pressed between the mandrel 1 and a head body 2 is extruded as a parison 4 through a slit S formed at the lower ends of the mandrel 1 and the nozzle 5. Upon this occasion, a cylinder 11 is elongated and operated, and a slice slip 7 is advanced to project the tip end of the slide lip 7 into the inner part of the above slit S, and to change this portion so that the slit interval of this portion is narrowed as shown by S2 as compared with the slit interval S1 at the other portion, whereby the thickness of the parison 4 can be made thinner as t2, while the thickness of the other portion is t1. By this controlling method, molded articles having asymmetric thickness, such as gasoline tanks for automobiles, solar heat collectors and the like, can be easily obtained.
JP55140012A 1980-10-07 1980-10-07 Device for controlling thickness of parison Granted JPS5764524A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP55140012A JPS5764524A (en) 1980-10-07 1980-10-07 Device for controlling thickness of parison

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP55140012A JPS5764524A (en) 1980-10-07 1980-10-07 Device for controlling thickness of parison

Publications (2)

Publication Number Publication Date
JPS5764524A true JPS5764524A (en) 1982-04-19
JPS6328766B2 JPS6328766B2 (en) 1988-06-09

Family

ID=15258874

Family Applications (1)

Application Number Title Priority Date Filing Date
JP55140012A Granted JPS5764524A (en) 1980-10-07 1980-10-07 Device for controlling thickness of parison

Country Status (1)

Country Link
JP (1) JPS5764524A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59140032A (en) * 1983-02-01 1984-08-11 Ishikawajima Harima Heavy Ind Co Ltd Parison wall thickness adjustment device in professional molding machine
JPS59160677A (en) * 1983-01-06 1984-09-11 エスエ−アイエ−ジ−・エスピ−エ− Airtight material for body of automobile and head for extruding and molding said material
JPS6230020A (en) * 1985-08-01 1987-02-09 Ishikawajima Harima Heavy Ind Co Ltd Plastic blow molding process
WO2013050500A1 (en) * 2011-10-05 2013-04-11 Sumika Polymer Compounds (France) Sa Solar thermal solutions using extrusion blow moulding technologies
FR3085616A1 (en) * 2018-09-06 2020-03-13 Pinard Emballages METHOD FOR MANUFACTURING A THICK-WALL PLASTIC CONTAINER, BLOW-EXTRUSION-BLOWING MACHINE AND THICK-WALL PLASTIC CONTAINER

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS52115870A (en) * 1976-03-13 1977-09-28 Elbatainer Kunststoff Method and device for producing hollow article from thermoplastic synthetic resin

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS52115870A (en) * 1976-03-13 1977-09-28 Elbatainer Kunststoff Method and device for producing hollow article from thermoplastic synthetic resin

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59160677A (en) * 1983-01-06 1984-09-11 エスエ−アイエ−ジ−・エスピ−エ− Airtight material for body of automobile and head for extruding and molding said material
JPS59140032A (en) * 1983-02-01 1984-08-11 Ishikawajima Harima Heavy Ind Co Ltd Parison wall thickness adjustment device in professional molding machine
JPS6230020A (en) * 1985-08-01 1987-02-09 Ishikawajima Harima Heavy Ind Co Ltd Plastic blow molding process
WO2013050500A1 (en) * 2011-10-05 2013-04-11 Sumika Polymer Compounds (France) Sa Solar thermal solutions using extrusion blow moulding technologies
FR3085616A1 (en) * 2018-09-06 2020-03-13 Pinard Emballages METHOD FOR MANUFACTURING A THICK-WALL PLASTIC CONTAINER, BLOW-EXTRUSION-BLOWING MACHINE AND THICK-WALL PLASTIC CONTAINER

Also Published As

Publication number Publication date
JPS6328766B2 (en) 1988-06-09

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