JPS54124068A - Extruder - Google Patents

Extruder

Info

Publication number
JPS54124068A
JPS54124068A JP3216978A JP3216978A JPS54124068A JP S54124068 A JPS54124068 A JP S54124068A JP 3216978 A JP3216978 A JP 3216978A JP 3216978 A JP3216978 A JP 3216978A JP S54124068 A JPS54124068 A JP S54124068A
Authority
JP
Japan
Prior art keywords
screw
path
supplied
plastic material
screw channel
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
JP3216978A
Other languages
Japanese (ja)
Other versions
JPS6119414B2 (en
Inventor
Hiroshi Sakai
Masatoshi Kanbe
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.)
Toyoda Gosei Co Ltd
Original Assignee
Toyoda Gosei 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 Toyoda Gosei Co Ltd filed Critical Toyoda Gosei Co Ltd
Priority to JP3216978A priority Critical patent/JPS54124068A/en
Publication of JPS54124068A publication Critical patent/JPS54124068A/en
Publication of JPS6119414B2 publication Critical patent/JPS6119414B2/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
    • B29C48/505—Screws
    • B29C48/62—Screws characterised by the shape of the thread channel, e.g. U-shaped
    • 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
    • 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
    • B29C48/445—Coaxially arranged screws, i.e. one within the other
    • 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
    • B29C48/455—Screws arranged to convey material towards each other, e.g. separate screws arranged after each other and feeding in opposite directions
    • 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
    • B29C48/54—Screws with additional forward-feeding elements
    • 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
    • B29C48/55—Screws having reverse-feeding elements
    • 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
    • B29C48/56—Screws having grooves or cavities other than the thread or the channel
    • 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
    • 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
    • B29C48/475—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die using pistons, accumulators or press rams
    • B29C48/48—Two or more rams or pistons

Landscapes

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

Abstract

PURPOSE:To provide an extruder for multi-layer extrusion, comprising a cylindrical barrel, a plurality of screws concentrically disposed in said barrel, and a plurality of resin paths each of which being supplied with different kind of resin by each of said screws. CONSTITUTION:A plastic material for the external layer is supplied from a hopper 9 to the left-handed screw channel 7a of a right-handedly rotating outer screw 7, and transferred forward to the outer resin flow path 19 of an extrusion die 18. On the other hand, another plastic material for the inner layer supplied from a hopper 10 to the right-handed screw channel 7b of the external screw 7 is transferred backward to the base of the right-handed screw channel 8a of a left-handedly rotating inner screw 8 through a plurality of holes connecting the outer and the inner channels. The plastic material is transferred forward in a space between the inner wall of the outer screw 7 and the right-handed screw channel 8a of the inner screw 8 to the inner path 20 of the extrusion head 18. The plastic materials introduced into the outer path 19 and the inner path 20 are formed to the desired double-layered form by the extrusion die 22
JP3216978A 1978-03-20 1978-03-20 Extruder Granted JPS54124068A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP3216978A JPS54124068A (en) 1978-03-20 1978-03-20 Extruder

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP3216978A JPS54124068A (en) 1978-03-20 1978-03-20 Extruder

Publications (2)

Publication Number Publication Date
JPS54124068A true JPS54124068A (en) 1979-09-26
JPS6119414B2 JPS6119414B2 (en) 1986-05-17

Family

ID=12351426

Family Applications (1)

Application Number Title Priority Date Filing Date
JP3216978A Granted JPS54124068A (en) 1978-03-20 1978-03-20 Extruder

Country Status (1)

Country Link
JP (1) JPS54124068A (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2602457A1 (en) * 1986-06-30 1988-02-12 Toyoda Gosei Kk DEVICE FOR MANUFACTURING A REINFORCED PIPE
US5614227A (en) * 1995-02-08 1997-03-25 Illinois Tool Works, Inc. Extrusion apparatus
US6627134B2 (en) * 2000-09-05 2003-09-30 Community Enterprises, Llc Apparatus for molding multilayered articles
JP2009269187A (en) * 2008-04-30 2009-11-19 Hitachi Cable Ltd Extrusion method and extruder
CN105082510A (en) * 2015-08-28 2015-11-25 顺德职业技术学院 Multi-segment series connection coaxial wheel type mixing extrusion device
CN105109013A (en) * 2015-08-28 2015-12-02 顺德职业技术学院 Extruding machine with multilevel material extrusion molding channels

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2602457A1 (en) * 1986-06-30 1988-02-12 Toyoda Gosei Kk DEVICE FOR MANUFACTURING A REINFORCED PIPE
US5614227A (en) * 1995-02-08 1997-03-25 Illinois Tool Works, Inc. Extrusion apparatus
US6627134B2 (en) * 2000-09-05 2003-09-30 Community Enterprises, Llc Apparatus for molding multilayered articles
JP2009269187A (en) * 2008-04-30 2009-11-19 Hitachi Cable Ltd Extrusion method and extruder
CN105082510A (en) * 2015-08-28 2015-11-25 顺德职业技术学院 Multi-segment series connection coaxial wheel type mixing extrusion device
CN105109013A (en) * 2015-08-28 2015-12-02 顺德职业技术学院 Extruding machine with multilevel material extrusion molding channels
CN105109013B (en) * 2015-08-28 2017-04-19 顺德职业技术学院 Extruding machine with multilevel material extrusion molding channels

Also Published As

Publication number Publication date
JPS6119414B2 (en) 1986-05-17

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