| 摘要 |
PROBLEM TO BE SOLVED: To prevent occurrence of stringing, drooping or the like and occurrence of clogging with resin. SOLUTION: This injection nozzle has a tubular main body 50 disposed in the front end of a heating cylinder and having a resin passage 50a opened in the front end and a nozzle heater 13 disposed around the main body 50 and heating resin in the resin passage 50a. A heat conduction checking means is provided in the front end part of the main body 50. Since the heat conduction checking means is provided in the front end part of the main body 50, it is possible to lower the temperature of the resin and to enhance the viscosity thereof in a part in front of the heat conduction checking means. As the result, occurrence of stringing, drooping or the like is prevented. Besides, occurrence of clogging with resin is prevented, since lowering of the temperature of the resin in the rear of the heat conduction checking means can be prevented.
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