APPARATUS FOR MOLDING MARBLE-LIKE INJECTED-MOLDED PRODUCT

摘要

PROBLEM TO BE SOLVED: To uniformly fill respective cavities with the molten raw material resin containing a plurality of materials different in viscosity extruded from the nozzle of an injection molding machine in spite of a molding apparatus for a mable like injection-molded product handling the molten raw material resin, to well prevent the generation of a filling insufficient product or a sink and to well hold the ratio of a base resin and a control resin to the respective cavities to achieve uniform filling. SOLUTION: The respective inlets 6A of a plurality of the runners 6 directly connected to respective cavities 7 at their leading ends are connected to the periphery of a first sprue 5 at an equal interval and the respective runners 6 are straightly arranged between the first sprue and the cavities 7 in a radial state and the lengths from the first sprue 5 to the respective cavities 7 are made equal in dimension.