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    • 46. 发明专利
    • Screw extruder for thermoplastic material
    • 螺杆挤出机用于热塑性材料
    • JP2007268725A
    • 2007-10-18
    • JP2006093750
    • 2006-03-30
    • Hagihara Industries Inc萩原工業株式会社
    • UEMURA RYUJISASAHARA YOSHIHIROSHIMIZU AKIRA
    • B29C47/60B29C47/44
    • B29C47/6012B29C47/6025
    • PROBLEM TO BE SOLVED: To provider a screw extruder for a thermoplastic material capable of changing the flow rate etc., of the thermoplastic material appropriately without using a plate member.
      SOLUTION: In the screw extruder for the thermoplastic material, cone screw shafts 20B are inserted rotatably into cylindrical housings 21A and 21B having cone inner peripheral surfaces e2, and the collected small piece-shaped thermoplastic material charged into the cylindrical housings 21A and 21B is sent forward by the screw-feeding action of the screw shafts 20B. In each proper interval place in the peripheral direction of the cone inner peripheral surface e2, an approximately forward/backward projection c6 with its height ranging from the cone inner peripheral surface e2 toward the center side gradually decreased is formed, and a front/back position change adjustment means 30 changes the flow rate of the thermoplastic material in the cylindrical housings 21A and 21B by changing the relative positions in the cross direction of the cone screw shaft 20B and the cone inner peripheral surface e2 is formed.
      COPYRIGHT: (C)2008,JPO&INPIT
    • 要解决的问题:为了提供能够适当地改变热塑性材料的流速等的热塑性材料的螺杆挤出机,而不使用板构件。 解决方案:在用于热塑性材料的螺杆挤出机中,锥形螺杆轴20B可旋转地插入具有锥形内周表面e2的圆柱形壳体21A和21B中,并且收集的小件状热塑性材料装入圆柱形壳体21A和 21B通过螺杆轴20B的螺旋进给动作向前发送。 在锥形内周面e2的圆周方向上的每个适当的间隔位置形成有从锥形内周面e2朝向中心侧的高度范围的大致正向/反向突出部c6逐渐减小,并且前/后位置 改变调整装置30通过改变锥形螺杆轴20B的横向上的相对位置而改变圆筒形壳体21A和21B中的热塑性材料的流速,形成锥形内周面e2。 版权所有(C)2008,JPO&INPIT