MOLD WITH A PLURALITY OF CAVITIES

摘要

PROBLEM TO BE SOLVED: To provide a mold with a plurality of cavities which facilitates replacing work and the regulation work thereof when a resin filling balance is taken between a plurality of cavities. SOLUTION: Two first and second cavities 3 and 4 having different volumes are formed between a fixed mold 1 and a movable mold 2 both of which are freely opened and closed mutually and the base ends 6A and 7A of first and second runners 6 and 7 branched to the first and second cavities 3 and 4 are formed to the leading end of the sprue 5 provided to the fixed mold 1 while a sprue bush 8 is provided to the fixed mold in a freely detachable manner. The sprue 5 and the base ends 6A and 7A of first and second runners 6 and 7 connected to the leading end of the sprue 5 are formed to the sprue bush 8. A sprue bush equipped with a different throttle part is replaced in place of the sprue bush 8 equipped with a throttle part 9 to easily take the resin filling balance between the cavities 3 and 4 by replacing one sprue bush. COPYRIGHT: (C)2004,JPO