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    • 10. 发明授权
    • Tools for injection moulding machines
    • 注塑机工具
    • US4199316A
    • 1980-04-22
    • US917969
    • 1978-06-22
    • Stanley A. Bradbury
    • Stanley A. Bradbury
    • B29C45/14B29F1/06
    • B29C45/14073B29C2045/14081
    • A tool for use in a moulding machine suited to introducing plastic material under pressure into the mould, comprises a two part mould defining a mould cavity, the mould cavity including a recess formed in one of the parts. The other part closes the recess in use and has slidably mounted therein at least one support member for supporting a core insert in the mould cavity. The or each support member being moveable between a first position in which the member projects into the mould cavity to support the core insert at the commencement of a moulding operation and a second position in which the member is at least partially retracted from the mould cavity to disengage from the core insert. Thus when material is introduced into the mould cavity the or each support member is urged from the first to the second position by pressure of the material after the core insert has been enveloped in the material.
    • 一种用于在压力下将塑性材料引入模具的成型机中的工具包括限定模腔的两部分模具,模腔包括形成在其中一个部分中的凹部。 另一部分封闭使用中的凹槽,并且可滑动地安装在其中至少一个用于将芯插入件支撑在模腔中的支撑构件。 所述支撑构件或每个支撑构件可在第一位置和第二位置之间移动,在该第一位置,构件伸入模腔中,以在模制操作开始时支撑芯插入件,并且第二位置中构件至少部分地从模腔缩回至 脱离芯插入物。 因此,当材料被引入模腔中时,或者每个支撑构件在芯插入件被包封在材料中之后通过材料的压力从第一位置到第二位置被推压。