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    • 10. 发明授权
    • Hopper structure for feeding powdery materials
    • 饲料粉料的料斗结构
    • US6045348A
    • 2000-04-04
    • US98303
    • 1998-06-18
    • Kiyoshi KinoshitaToshihiko KariyaManabu Kawahara
    • Kiyoshi KinoshitaToshihiko KariyaManabu Kawahara
    • B29C31/02B29C45/18B29C45/63B29C47/10B29C47/76
    • B29C47/767B29C45/18B29C47/0009B29C47/1009B29C47/1027
    • The present invention is directed to a hopper structure for feeding a powdery material adapted to enable gas, etc., generated in a plasticizing cylinder to escape irrespective of the state of feed of the powdery material within a hopper. To this end, the hopper structure of the present invention is arranged such that the plasticizing cylinder is formed with a material feed port for providing a communication between the interior and the exterior of the plasticizing cylinder, and that a hopper is provided for feeding a powdery material via the material feed port to the outer periphery of a screw within the plasticizing cylinder, and that a material feeding tube is mounted to the bottom of the hopper for allowing a communication between the bottom of the hopper and the vicinity of the outer periphery of the screw, with a gap for the removal of air being formed between the outer peripheral surface of the material feeding tube and the inner peripheral surface of the material feed port, the gap extending from the vicinity of the outer periphery of the screw to the exterior. The present invention is applied for the feed of a powdery molding material into the plasticizing cylinder of an in-line screw injection molding machine or of an in-line screw extrusion molding machine.
    • 本发明涉及一种料斗结构,用于供给粉末材料,该粉末材料适于使得在塑化筒中产生的气体等能够逸出,而不管料斗内的粉末材料的进料状态如何。 为此,本发明的料斗结构被设置成使塑化筒形成有用于在塑化筒的内部和外部之间提供连通的材料供给口,并且设置料斗以将粉末状 材料通过材料供给口连接到塑化筒内的螺杆的外周,并且料斗的底部安装有供料管,用于允许料斗底部与外周附近的连通 所述螺杆具有用于除去在所述材料供给管的外周表面和所述材料供给口的内周表面之间的空气的间隙,所述间隙从所述螺杆的外周附近延伸到所述外部 。 本发明适用于将粉末成型材料进料到直列螺杆注射成型机或直列螺杆挤出成型机的增塑筒中。