Patent attributes
An injection molding apparatus includes a plasticizing block that includes therein a plasticizing and force-feeding mechanism which heats and plasticizes a material and force-feeds the material while kneading it, a weighing block that is connected to the plasticizing block in close contact with it, and includes therein a weighing and feeding mechanism which weighs and feeds out the material force-fed by the plasticizing and force-feeding mechanism, a fixed die plate that includes therein an injection mechanism which injects the material weighed and fed out by the weighing and feeding mechanism into a cavity, a movable die plate that advances to and retreats from the fixed die plate and makes the cavity a substantially closed space when abutting on the fixed die plate, and a clamping housing that includes therein a movable die plate drive mechanism.