Knead extruding injection molding method and device therefor

  • Inventors: ORITA KIMIYA
  • Assignees: Nok Corp
  • Publication Date: August 15, 1987
  • Publication Number: JP-S62187007-A


PURPOSE:To enhance productivity by actuating a knead extruding section continuously to send kneaded material to an injection molding section and shortening the time required by the whole of molding process. CONSTITUTION:Powder synthetic rubber 5, while being kneaded with a kneading screw 4, is sent from a knead extruding section 1 to an injection molding section 2 through an interconnecting section 7 gradually. After kneading is completed, the kneaded material sent by a plasticizing screw 9 in carried to a cylinder 13, and the quantity of injection molding is measured by a plunger section 18. Then, the kneaded material 17 is injected into a mold 12 through a rotary valve 11 by a plunger 14. At that time, a kneading screw 4 rotates, kneads and extrudes powder synthetic rubber 5 in an hopper 6 continuously without stopping rotation to carry out a continuous production.




Download Full PDF Version (Non-Commercial Use)

Patent Citations (0)

    Publication numberPublication dateAssigneeTitle

NO-Patent Citations (0)


Cited By (8)

    Publication numberPublication dateAssigneeTitle
    CN-104842498-BSeptember 12, 2017住友重机械工业株式会社注射装置
    CN-105835321-AAugust 10, 2016荣成荣鹰橡胶制品有限公司Molding equipment for solid tyres
    JP-2008223336-ASeptember 25, 2008Kandenko Co Ltd, Tokyo Electric Power Co Inc:The, 東京電力株式会社, 株式会社関電工地下構造物用止水材
    JP-2015150810-AAugust 24, 2015住友重機械工業株式会社, Sumitomo Heavy Ind Ltd射出装置
    JP-H03100411-UOctober 21, 1991
    JP-S63130307-AJune 02, 1988Yamashiro Seiki Seisakusho Kk, Chuo Kagaku Kogyo KkInjection molding machine for ceramic, etc. with kneader
    US-5773042-AJune 30, 1998Kabushiki Kaisha Kobe Seiko ShoInjection molding unit for long fiber-reinforced thermoplastic resin
    WO-2004073955-A1September 02, 2004Netstal-Maschinen AgMethod and device for injection molding plastics