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    • 31. 发明授权
    • Injection molding method of metal mold
    • 金属模具注塑成型方法
    • US06405784B2
    • 2002-06-18
    • US09845049
    • 2001-04-27
    • Kiyoto TakizawaToshiyasu KodaYuji HayashiMamoru Miyagawa
    • Kiyoto TakizawaToshiyasu KodaYuji HayashiMamoru Miyagawa
    • B22D1300
    • B22D17/007Y10S164/90
    • The invention has an object to permit to mold metal molds having a thixothropic structure by melting, agitating and weighing, injection molten metal in a melting vessel by combining separately functioning agitation means and injection means. The invention consists in supply granular metal material in a fusion vessel 11 having a weighing chamber 17 by a cylinder of required length communicating with a nozzle port at the extremity section, including rotatively an agitation means 21 inside, and wherein an injection means 22 whose extremity section is formed into an injection plunger 30 is inserted advanceably and retractably into the center section of this agitation means 21. The metal material is heat melted by an external heat. The molten metal material is accumulated in the fusion vessel by homogenizing by the agitation means 21. A part of molten metal material is injection charged into a die at a temperature equal or superior to the solid phase line temperature and equal or inferior to the liquid phase line temperature, and molded into a metal mold having a thixothropic structure.
    • 本发明的目的是通过熔融,搅拌和称重来模制具有触变结构的金属模具,通过组合单独功能的搅拌装置和注射装置在熔融容器中注入熔融金属。 本发明包括在熔融容器11中供应颗粒状金属材料,其具有通过在末端部分处的喷嘴端口连通所需长度的圆筒的称重室17,其包括内部的可旋转地搅拌装置21,并且其中末端的喷射装置22 形成为注射柱塞30的部分被可推进地伸缩地插入到该搅拌装置21的中心部分中。金属材料被外部热量加热熔化。 熔融金属材料通过搅拌装置21均质化而在熔融容器中积聚。将熔融金属材料的一部分在等于或等于固相线温度的温度下注入模具中,等于或低于液相 并且模制成具有触变结构的金属模具。
    • 33. 发明授权
    • Control method of injection molding machine
    • 注塑机控制方法
    • US5554326A
    • 1996-09-10
    • US421886
    • 1995-04-14
    • Makoto NakazawaToshiyasu KodaTyuyoshi Arai
    • Makoto NakazawaToshiyasu KodaTyuyoshi Arai
    • B29C45/50B29C45/58B29C45/76B29C45/77B29C45/80G11B7/26
    • B29C45/76B29C45/585B29C2045/5096G11B7/263
    • A control method of an injection molding machine includes the steps of advancing a screw 2, injecting and filling the resin in a barrel cylinder 3 into a mold 4 to fill the mold, and then applying a predetermined holding pressure to the resin in the mold 4. The control method further includes the steps of performing an injecting and filling by using an injection cylinder 5 having a double-rod piston 6 which can advance and retreat the screw 2, and then controlling the injection cylinder 5 by a controlling signal Dc including a predetermined alternating current signal in such a manner that the screw 2 is reciprocated in a longitudinal direction as a center with an advance finish and. stop position Xs and a position at which the screw is moved so as to retreat by a predetermined distance from the advanced finish and stop position Xs. Thereby, the mold failure such an overpack and a burr is eliminated.
    • 注射成型机的控制方法包括以下步骤:使螺杆2前进,将筒体3中的树脂注入并填充到模具4中以填充模具,然后对模具4中的树脂施加预定的保持压力 该控制方法还包括以下步骤:通过使用具有能够使螺杆2前进和后退的双杆活塞6的注射缸5进行注射和填充,然后通过包括以下步骤的控制信号Dc来控制注射缸5 预定的交流信号使得螺杆2以纵向方向作为中心与前进完成往复运动。 停止位置Xs和螺杆移动的位置,以便从高级完成和停止位置Xs退回预定距离。 因此,消除了这种外包装和毛刺的模具故障。