JPS5627337A - Screw of extrusion molding machine - Google Patents

Screw of extrusion molding machine

Info

Publication number
JPS5627337A
JPS5627337A JP10434079A JP10434079A JPS5627337A JP S5627337 A JPS5627337 A JP S5627337A JP 10434079 A JP10434079 A JP 10434079A JP 10434079 A JP10434079 A JP 10434079A JP S5627337 A JPS5627337 A JP S5627337A
Authority
JP
Japan
Prior art keywords
screws
barrel
smaller diameter
stirring blades
molding machine
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
JP10434079A
Other languages
Japanese (ja)
Inventor
Tadashi Sato
Masaru Yokoyama
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 JP10434079A priority Critical patent/JPS5627337A/en
Publication of JPS5627337A publication Critical patent/JPS5627337A/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
    • B29C48/505—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
    • B29C48/25—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
    • B29C48/03—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 molten extruding material by a method wherein a smaller diameter portion is formed on each of a pair of screw shafts arranged in a barrel and stirring blades are projected respectively thereon. CONSTITUTION:A pair of parallel screws 1, 2 are arranged rotatively in the barrel 9 of the extrusion molding machine and the smaller diameter portions 5, 6 are formed on the respective screw shafts 1a, 2a of screws 1, 2. Furthermore, the stirring blades 7, 8 are projected on the screws 1, 2 respectively. Synthetic resin molding material is supplied into the barrel 9 and heated gradually in a feed portion. Then, the material is pressed in quick heat and plasticized by the heat from the barrel 9 and the shearing frictional heat between the screws 1, 2. Subsequently, in the molten portion the material is kneaded by laminar mixture by rotation of the screws 1, 2, by turbulent mixture between the screws 1, 2 and by shearing force with stirring blades 7, 8. And change of relative positions of the material in the smaller diameter portion is undergone to carry out thorough kneading.
JP10434079A 1979-08-15 1979-08-15 Screw of extrusion molding machine Pending JPS5627337A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP10434079A JPS5627337A (en) 1979-08-15 1979-08-15 Screw of extrusion molding machine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP10434079A JPS5627337A (en) 1979-08-15 1979-08-15 Screw of extrusion molding machine

Publications (1)

Publication Number Publication Date
JPS5627337A true JPS5627337A (en) 1981-03-17

Family

ID=14378182

Family Applications (1)

Application Number Title Priority Date Filing Date
JP10434079A Pending JPS5627337A (en) 1979-08-15 1979-08-15 Screw of extrusion molding machine

Country Status (1)

Country Link
JP (1) JPS5627337A (en)

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