METHOD AND APPARATUS FOR MOLDING THREE-DIMENSIONAL SHAPE OF MOLDED ARTICLE

摘要

PROBLEM TO BE SOLVED: To provide a method and an apparatus for molding a three-dimensional shape of a molded article, capable of coagulating an injection molding material for a short time even if an elastomer mold is used in the molding of the molded article such as a disappearing model or the like. SOLUTION: The molding apparatus is equipped with the elastomer mold 20 comprising an elastomer material and constituted by forming the negative mold of a three-dimensional master mold as a cavity 23, first and second frames 30 and 40 for holding the periphery of the elastomer mold 20 and a molding material injection device 60 for injection-molding a molten molding material in the cavity of the elastomer mold 20. A filler having heat conductivity higher than that of the elastomer material is mixed with the elastomer material constituting the elastomer mold 20 to enhance the heat conductivity of the elastomer mold 20. A cooling means 35 for cooling the first and second frames 30 and 40 is provided. The heat of the molding material injected in the cavity 23 is discharged to the cooling means 35 from the elastomer mold 20 improved in heat conductivity through the first and second frames 30 and 40.