INJECTION MOLDING DIE APPARATUS

摘要

PROBLEM TO BE SOLVED: To provide an injection molding die apparatus that can easily produce an injection-molded article including a matrix resin and a built-in material arranged properly at a predetermined position with respect to the matrix resin and coated with the matrix resin and is advantageous from a facility aspect.SOLUTION: An injection molding die apparatus includes a plurality of stationary-side holding pins 17 and a plurality of movable-side holing pins 37 which hold a built-in material 63 arranged in a cavity C formed in a state where a stationary die 11 and a movable die 31 are closed. The molding die apparatus includes a first injection port 43a through which a molten matrix resin is injected into a stationary-side gap between the built-in material 63 held by the holding pins and the stationary die 11, and a second injection port 45a through which the molten matrix resin is injected into a movable-side gap between the built-in material 63 held by the holding pins and the movable die 31. The first injection port 43a and the second injection port 45a are installed so that the molten matrix resins are injected at the same time to cancel resin pressures acting on both surfaces of the built-in material 63 by the injection.SELECTED DRAWING: Figure 4