JPS565748A - Kneading part of extruder screw - Google Patents

Kneading part of extruder screw

Info

Publication number
JPS565748A
JPS565748A JP8080679A JP8080679A JPS565748A JP S565748 A JPS565748 A JP S565748A JP 8080679 A JP8080679 A JP 8080679A JP 8080679 A JP8080679 A JP 8080679A JP S565748 A JPS565748 A JP S565748A
Authority
JP
Japan
Prior art keywords
groove
plunger
screw shaft
small
grooves
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
JP8080679A
Other languages
Japanese (ja)
Other versions
JPS619134B2 (en
Inventor
Seiya Yoda
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.)
Sumitomo Heavy Industries Ltd
Original Assignee
Sumitomo Heavy Industries 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 Sumitomo Heavy Industries Ltd filed Critical Sumitomo Heavy Industries Ltd
Priority to JP8080679A priority Critical patent/JPS565748A/en
Publication of JPS565748A publication Critical patent/JPS565748A/en
Publication of JPS619134B2 publication Critical patent/JPS619134B2/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
    • B29C48/565—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
    • B29C48/50—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

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
  • Extrusion Moulding Of Plastics Or The Like (AREA)

Abstract

PURPOSE:To prepare a small kneading part having a large extruding capacity where there occur no accumulation of unmolten resin and no seizure on a screw shaft by a method wherein a groove of such a special form that sectional areas decrease gradually toward the front end of the screw shaft is provided on the plunger of the screw shaft. CONSTITUTION:Giving a small gap 10 to a barrel wall 9, a plurality of grooves (ex. four grooves) 11 are formed in such a form that the width gradually decreases in a approximately triangular shape and the depth becomes gradually smaller around the plunger 8 provided on a screw shaft 7 toward the direction of the front end thereof. The front end of the groove 11 is opened to the front part of the plunger 8 in the form of a small groove 12. The fluid resin pressed in from the upper stream side of the groove 11 is pressed on account of decrease of the sectional areas of the groove 11. While a great portion of it is pushed into the gap 10 on the barrier 15 from the groove 11 and is flowed out toward the lower stream side of the plunger 8 it is sheared and kneaded and a part of it flows out from a small groove 12 as it rises along the slope of the bottom 13 of the groove 11 toward the inner surface of the barrel 9.
JP8080679A 1979-06-28 1979-06-28 Kneading part of extruder screw Granted JPS565748A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP8080679A JPS565748A (en) 1979-06-28 1979-06-28 Kneading part of extruder screw

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8080679A JPS565748A (en) 1979-06-28 1979-06-28 Kneading part of extruder screw

Publications (2)

Publication Number Publication Date
JPS565748A true JPS565748A (en) 1981-01-21
JPS619134B2 JPS619134B2 (en) 1986-03-20

Family

ID=13728701

Family Applications (1)

Application Number Title Priority Date Filing Date
JP8080679A Granted JPS565748A (en) 1979-06-28 1979-06-28 Kneading part of extruder screw

Country Status (1)

Country Link
JP (1) JPS565748A (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59167240A (en) * 1983-03-14 1984-09-20 Chisso Corp Method and apparatus for manufacturing molding of organic filler-mixed thermoplastic resin composition
JPS59146722U (en) * 1983-03-23 1984-10-01 横河電機株式会社 optical scale reader
US6152592A (en) * 1999-02-18 2000-11-28 Klein; Ron J. Mixing devices having an array of spaced apart mixing elements for intercepting a flowing stream of material and contoured to mix constituents in the stream
US6155706A (en) * 1999-02-18 2000-12-05 Klein; Ron J. Mixing devices having an array of interleaved mixing elements for intercepting a flowing stream of material and contoured to mix constituents in the stream
US6712495B2 (en) * 2001-11-20 2004-03-30 E. I. Du Pont De Nemours And Company Mixing apparatus
DE102017124091A1 (en) * 2017-10-17 2019-04-18 Kraussmaffei Technologies Gmbh Shear and single screw plasticizing unit

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59167240A (en) * 1983-03-14 1984-09-20 Chisso Corp Method and apparatus for manufacturing molding of organic filler-mixed thermoplastic resin composition
JPS6257491B2 (en) * 1983-03-14 1987-12-01 Chisso Corp
JPS59146722U (en) * 1983-03-23 1984-10-01 横河電機株式会社 optical scale reader
JPH0244173Y2 (en) * 1983-03-23 1990-11-22
US6152592A (en) * 1999-02-18 2000-11-28 Klein; Ron J. Mixing devices having an array of spaced apart mixing elements for intercepting a flowing stream of material and contoured to mix constituents in the stream
US6155706A (en) * 1999-02-18 2000-12-05 Klein; Ron J. Mixing devices having an array of interleaved mixing elements for intercepting a flowing stream of material and contoured to mix constituents in the stream
US6712495B2 (en) * 2001-11-20 2004-03-30 E. I. Du Pont De Nemours And Company Mixing apparatus
DE102017124091A1 (en) * 2017-10-17 2019-04-18 Kraussmaffei Technologies Gmbh Shear and single screw plasticizing unit
DE102017124091B4 (en) * 2017-10-17 2019-08-01 Kraussmaffei Technologies Gmbh Shear and single screw plasticizing unit
US11639016B2 (en) 2017-10-17 2023-05-02 Kraussmaffei Technologies Gmbh Shearing part
EP3697591B1 (en) * 2017-10-17 2023-06-07 KraussMaffei Technologies GmbH Shearing part for a plasticising screw

Also Published As

Publication number Publication date
JPS619134B2 (en) 1986-03-20

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