| 主权项 |
1. An injection molding apparatus for obtaining a molded product by filling molten resin in a product part formed in a mold, comprising:
an injector which obtains molten resin by melting resin, and injects the molten resin, a hot runner which is a flowing path of the molten resin, a temperature rising part which is provided in a part of the hot runner, and increases a temperature of the molten resin to be higher than a melting temperature in the injector, a path opening/closing part which opens or closes an upstream side flowing path or a downstream side flowing path of the temperature rising part, and a stirring part provided with a stirring blade for stirring the molten resin flowing in the temperature rising part, wherein the path opening/closing part comprises a valve member for opening or closing the upstream side flowing path or the downstream side flowing path, and a displacement mechanism for displacing the valve member, wherein an insertion hole is formed in the stirring blade, and the valve member is passed through the insertion hole, and wherein a tubular member is inserted into the insertion hole, and the valve member is passed through the insertion hole through a through-hole of the tubular member. |
