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1. 发明申请

WO1998004395A1 RESIN MOLDING APPARATUS 审中-公开
标题翻译：树脂成型设备
公开(公告)号：WO1998004395A1
公开(公告)日：1998-02-05
申请号：PCT/JP1997002592
申请日：1997-07-25
申请人： MATSUSHITA ELECTRIC WORKS, LTD.
发明人： MATSUSHITA ELECTRIC WORKS, LTD. , NISHIDE, Yasutaka , TANAHASHI, Yasunori , HATTORI, Kazuo
IPC分类号： B29C45/02
CPC分类号： B29C45/1808 , B29C45/02 , B29C45/14655
摘要： A resin molding apparatus eliminates the need of using a resin molding material preformed into tablets, and can provide moldings which are less likely to generate voids. The molding apparatus comprises an upper mold, a lower mold having a cylinder, heaters for heating the upper mold and lower mold, a plunger slidable along an inner wall of the cylinder, a mold cavity formed between the upper mold and lower mold, a runner providing communication between a cylinder inner space to be filled with a resin molding material and the mold cavity, and a gate member movable between a closed state and an opened state of the runner. In the closed state of the gate member, the resin molding material charged is pressurized by the movement of the plunger while indirectly heated by the heaters so that air contained between particles is discharged outside through gaps and the like between the plunger and the cylinder. On the other hand, in the opened state of the gate member, the resin molding material substantially melted is pressurized by the plunger to be supplied to the mold cavity through the runner.
摘要翻译：树脂成型装置不需要使用预成型为片状的树脂成形材料，并且可以提供不太可能产生空隙的模制品。成型装置包括上模具，具有圆筒的下模具，用于加热上模具和下模具的加热器，沿着圆筒的内壁滑动的柱塞，形成在上模具和下模具之间的模腔，流道提供待填充的圆筒内部空间与树脂模制材料之间的连通以及可在流道的关闭状态和打开状态之间移动的浇口构件。在门构件的关闭状态下，由加热器间接加热的柱塞的移动而使填充的树脂成型材料被加压，使得容纳在颗粒之间的空气通过柱塞和气缸之间的间隙等排出。另一方面，在门构件的打开状态下，基本熔化的树脂成型材料被柱塞加压，以通过浇道供给到模腔。

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