Patent ID: 8496470
Filing Date: 2013-07-30
Classification: B29C,B29L,Y10T

Abstract:
1. An injection molding die for molding a resin molded product having an opening and an appearance surface, the injection molding die comprising: a movable die member provided with a molded product's appearance surface forming portion; and a fixed die member provided with a molded product's rear surface forming portion, the fixed die member being provided with two or more hot runners to provide two or more resin supplying paths, the fixed die member being provided with two or more gates each connected to a hot runner from which a molten resin is injected into a cavity defined by the molded product's appearance surface forming portion and the molded product's rear surface forming portion; the two or more gates being two or more direct valve gates directly opening from the fixed die member to the cavity and opened/closed by a valve, the two or more direct valve gates being disposed in the molded product's rear surface forming portion; and the movable die member or each of the movable die member and the fixed die member being integrally provided with a protrusion for making said opening so as to use no insert.