| 摘要 |
A mold unit capable of adjusting the center between the molds to prevent damage of the molds by simply adjusting the center between respective insert molds of a cope and a drag respectively comprising a die holder and an insert mold, thereby conforming the centers of the insert molds to each other is provided. In a mold unit comprising a drag(1) mounted on a bed and a cope(3) mounted on a ram, the mold unit comprises: an upper die holder(21) of the cope on which a mounting groove portion(31) larger than the upper insert mold is formed so that the upper insert mold is inserted and mounted into the mounting groove portion; a mounting groove surface(33) connected to the air passage formed at the inner side of the upper insert mold to receive air from an air hose(37) of the outside; an upper insert mold(23) which has a ring groove formed along one side of an outer peripheral surface thereof, and which is inserted into the mounting groove portion in the state that a seal ring(39) is inserted into the ring groove; and an air passage which is formed within the upper die holder, and of which outer end can be connected to the air hose or separated from the air hose through an air hose connector(41).
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