JPS5684934A - Screw for synthetic resin extruder or injection molder - Google Patents

Screw for synthetic resin extruder or injection molder

Info

Publication number
JPS5684934A
JPS5684934A JP16120879A JP16120879A JPS5684934A JP S5684934 A JPS5684934 A JP S5684934A JP 16120879 A JP16120879 A JP 16120879A JP 16120879 A JP16120879 A JP 16120879A JP S5684934 A JPS5684934 A JP S5684934A
Authority
JP
Japan
Prior art keywords
screw
section
flow
main screw
crossing
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
JP16120879A
Other languages
Japanese (ja)
Inventor
Shinichi Fukumizu
Shinji Hashizume
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.)
Kobe Steel Ltd
Original Assignee
Kobe Steel 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 Kobe Steel Ltd filed Critical Kobe Steel Ltd
Priority to JP16120879A priority Critical patent/JPS5684934A/en
Publication of JPS5684934A publication Critical patent/JPS5684934A/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
    • B29C48/56—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)
  • Injection Moulding Of Plastics Or The Like (AREA)
  • Extrusion Moulding Of Plastics Or The Like (AREA)

Abstract

PURPOSE:To improve a mixing effect and increase production by a method wherein a mixing section consisting of a main screw having a comparatively steel lead angle and a subscrew groove crossing the main screw with a comparatively gentle lead angle is provided at a proper position of the screw. CONSTITUTION:The mixing section 7 constituted of the main screw 9 having the comparatively steep lead angle and a plurality of subscrew grooves 10 crossing the main screw 9 continuously in a whole length of the mixing section 7 is provided at a proper position of the screw 1. A flow in the screw direction X along the main screw 9 and a flow crossing the former flow are caused in the half-molten resin being fed from a feed screw section while a turbulent flow Y is caused in the groove section to mix the resin sufficiently. Since the mixing effect is improved, the depth of the groove section may be made deeper, at the same time, the number of revolutions of the screw 1 may be increased, therefore, the production may be increased.
JP16120879A 1979-12-11 1979-12-11 Screw for synthetic resin extruder or injection molder Pending JPS5684934A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP16120879A JPS5684934A (en) 1979-12-11 1979-12-11 Screw for synthetic resin extruder or injection molder

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP16120879A JPS5684934A (en) 1979-12-11 1979-12-11 Screw for synthetic resin extruder or injection molder

Publications (1)

Publication Number Publication Date
JPS5684934A true JPS5684934A (en) 1981-07-10

Family

ID=15730648

Family Applications (1)

Application Number Title Priority Date Filing Date
JP16120879A Pending JPS5684934A (en) 1979-12-11 1979-12-11 Screw for synthetic resin extruder or injection molder

Country Status (1)

Country Link
JP (1) JPS5684934A (en)

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