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    • 5. 发明授权
    • Apparatus for injection molding plastic material
    • 注塑成型塑料材料的设备
    • US5106283A
    • 1992-04-21
    • US571769
    • 1990-08-22
    • Roland SauerJohann HolzschuhHelmut EchkardtMichael Renger
    • Roland SauerJohann HolzschuhHelmut EchkardtMichael Renger
    • B29C45/20B29C45/17B29C45/23
    • B29C45/1735
    • An apparatus for injection molding of plastics material in accordance with a gas or liquid injection method. The apparatus includes a nozzle which can be applied to the injection molding die or the injection mold. This nozzle enables selectively the sole injection of plastics material melt, the simultaneous injection of plastics material melt and medium as well as the sole injection of medium into the mold cavity of the injection molding die or injection mold. The melt is supplied to the nozzle mouth by the extruder screw cylinder of the extruder around a nozzle torpedo, while the medium is introduced into the nozzle so as to be spaced from the nozzle mouth. The automatic operation of the apparatus in the course of all three types of operation is made possible by locating a check valve in the melt supply line of the nozzle between the upstream end of the nozzle torpedo and the junction piece of the extruder screw cylinder, which check valve can be automatically brought into its closed position in direction counter to the extruder screw cylinder.
    • 一种根据气体或液体注射方法注塑塑料材料的装置。 该装置包括可以应用于注射模具或注射模具的喷嘴。 该喷嘴能够选择性地单独注射塑料材料熔体,同时注射塑料材料熔体和介质以及将单独的介质注入到注塑模具或注射模具的模腔中。 将熔体通过挤出机的挤出机螺杆筒围绕喷嘴鱼雷供应到喷嘴口,同时将介质引入喷嘴以与喷嘴口间隔开。 通过在喷嘴鱼雷的上游端和挤出机螺杆缸的接合片之间的喷嘴的熔融供给管线中设置止回阀,可以实现在所有三种操作过程中设备的自动操作, 止回阀可以自动进入与挤出机螺杆缸相反的方向的关闭位置。