| 摘要 |
PURPOSE:To easily display the discrimination of materials for moldings of different materials by using the same molds by providing a rotary core with a concavity or convexity for displaying the kinds of materials to part of the core molds. CONSTITUTION:At the center of core mold 1, a convexity 1' matching the shape of a molding is provided, and in its part, a columnar rotary core 2 is rotatably buried in the vicinity of the convexity 1'. On the surface of the rotary core 2, a turning hole 3 is provided at the center and also a concavity 4 for displaying the kinds of molding materials is provided on the peripheral portion. When a resin material is injected for molding into a cavity 7 between the convexity 1' and the concavity 4 formed by arranging the core mold 1 and a cavity mold 5 in mutually facing manner, a convexity is integrally formed at the end of molding in case where a flame retardant material is used, and also molding with flattened end is formed by turning the rotary core 2 through tens degrees by a driver in case where ordinary material is used, for example. |
