JPS5627338A - Extrusion molding machine - Google Patents

Extrusion molding machine

Info

Publication number
JPS5627338A
JPS5627338A JP10437479A JP10437479A JPS5627338A JP S5627338 A JPS5627338 A JP S5627338A JP 10437479 A JP10437479 A JP 10437479A JP 10437479 A JP10437479 A JP 10437479A JP S5627338 A JPS5627338 A JP S5627338A
Authority
JP
Japan
Prior art keywords
barrel
smaller diameter
projected
stirring blades
kneading
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
JP10437479A
Other languages
Japanese (ja)
Inventor
Tadashi Sato
Hidenori Idate
Mitsuharu Okido
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.)
Panasonic Electric Works Co Ltd
Original Assignee
Matsushita Electric Works 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 Matsushita Electric Works Ltd filed Critical Matsushita Electric Works Ltd
Priority to JP10437479A priority Critical patent/JPS5627338A/en
Publication of JPS5627338A publication Critical patent/JPS5627338A/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
    • B29C48/68—Barrels or cylinders
    • B29C48/685—Barrels or cylinders characterised by their inner surfaces, e.g. having grooves, projections or threads
    • B29C48/687—Barrels or cylinders characterised by their inner surfaces, e.g. having grooves, projections or threads having projections with a short length in the barrel direction, e.g. pins
    • 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
    • B29C48/395—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die using screws surrounded by a cooperating barrel, e.g. single screw extruders
    • 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
    • B29C48/395—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die using screws surrounded by a cooperating barrel, e.g. single screw extruders
    • B29C48/40—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die using screws surrounded by a cooperating barrel, e.g. single screw extruders using two or more parallel screws or at least two parallel non-intermeshing screws, e.g. twin screw extruders
    • B29C48/402—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die using screws surrounded by a cooperating barrel, e.g. single screw extruders using two or more parallel screws or at least two parallel non-intermeshing screws, e.g. twin screw extruders the screws having intermeshing parts
    • 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
    • B29C48/505—Screws
    • B29C48/565—Screws having projections other than the thread, e.g. pins
    • 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

Landscapes

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

Abstract

PURPOSE:To improve the efficiency in mixing and kneading of molding material by a method wherein smaller diameter portions are formed on screw shafts arranged in a barrel stirring blades are projected around the shafts and a baffle with a special structure is projected on the inner circumference of the barrel. CONSTITUTION:The smaller diameter portions 4 are formed on the shafts 3 of screws 2 arranged rotatively in a barrel 1. The stirring blades 5 are projected around these smaller diameter portions 4 and a baffle 6 whose edge is inserted into the smaller diameter portion 4 is projected on the inner circumference of the barrel 1. Molding material is supplied into the barrel 1, fed in a solid form as it is heated slowly in a feed portion, pressed suddenly in a compression portion, heated by the shearing friction between the barrel 1 and the screw 2 and plasticized. Subsequently, laminar mixture in a molten portion, strong kneading by the stirring blades 5 and turbulent mixture in the smaller diameter portion 4 are added and relative positions of the material are changed to promote kneading.
JP10437479A 1979-08-15 1979-08-15 Extrusion molding machine Pending JPS5627338A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP10437479A JPS5627338A (en) 1979-08-15 1979-08-15 Extrusion molding machine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP10437479A JPS5627338A (en) 1979-08-15 1979-08-15 Extrusion molding machine

Publications (1)

Publication Number Publication Date
JPS5627338A true JPS5627338A (en) 1981-03-17

Family

ID=14379005

Family Applications (1)

Application Number Title Priority Date Filing Date
JP10437479A Pending JPS5627338A (en) 1979-08-15 1979-08-15 Extrusion molding machine

Country Status (1)

Country Link
JP (1) JPS5627338A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5916712A (en) * 1982-06-01 1984-01-27 ユニロ−ヤル・エングレベルト・ライフエン・ゲゼルシヤフト・ミト・ベシユレンクテル・ハフツング Mixer for plastic substance
US8267149B2 (en) 2007-03-10 2012-09-18 Cool Options, Inc. Screw design and method for metal injection molding
CN112848209A (en) * 2020-12-16 2021-05-28 通鼎互联信息股份有限公司 Device for automatically adding color master batches and use method thereof

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5916712A (en) * 1982-06-01 1984-01-27 ユニロ−ヤル・エングレベルト・ライフエン・ゲゼルシヤフト・ミト・ベシユレンクテル・ハフツング Mixer for plastic substance
US8267149B2 (en) 2007-03-10 2012-09-18 Cool Options, Inc. Screw design and method for metal injection molding
US9283617B2 (en) 2007-03-10 2016-03-15 Cool Options, Inc. Screw design and method for metal injection molding
CN112848209A (en) * 2020-12-16 2021-05-28 通鼎互联信息股份有限公司 Device for automatically adding color master batches and use method thereof
WO2022127460A1 (en) * 2020-12-16 2022-06-23 通鼎互联信息股份有限公司 Apparatus for automatically adding color masterbatch, and use method therefor

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