| 摘要 |
The molding apparatus includes a cavity mold with a cavity surface for defining a cavity in which a molten injection material is injected, and a core mold with a core surface for defining the cavity upon engagement with the cavity mold. The core mold has an intermediate core mold plate having the core surface and a support plate. A guide pin inserted into a guide hole formed in the cavity mold and fitted through the intermediate core mold plate to allow the intermediate core mold plate to be moved only in a forward and backward direction is fixed to the support plate. A first spring is installed between the intermediate core mold plate and the support plate, a first heating means is installed to a parting surface of the intermediate core mold plate and a cooling means is installed to the support plate.
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