| 摘要 |
PROBLEM TO BE SOLVED: To provide an injection mold capable of reliably preventing leakage of materials of different kinds while keeping the cost low in two-color molding or in-mold coating.SOLUTION: After a resin Wis injected into a cavity 20 formed by completely clamped with a stationary die 10 and a movable die 11 to mold a resin molded article, a material Wof a different kind is injected into and solidified in a secondary cavity 22 newly formed by slightly opening the movable die 11. An injection mold 1 includes a seal cavity 21 composed of a periphery cavity portion 21a extending from the periphery of the cavity 20 in the direction in which the movable die 11 slides, a flange cavity portion 21b extending outward from the tip of the periphery cavity portion 21a, and a fold-back cavity portion 21c extending from the tip of the flange cavity portion 21b in the reverse direction to the extending direction of the periphery cavity portion 21a. |
