| 摘要 |
PROBLEM TO BE SOLVED: To prevent the generation of a stringing phenomenon accompanied by mold opening. SOLUTION: The injection device has a cylinder member, the cylindrical part 26 attached to the front end of the cylinder member and having a first molding compound flow channel formed therein, a lid part 27 having a second molding compound flow channel formed therein and having a nozzle orifice 24 formed to the front end thereof and the insertion body arranged between the cylindrical part 26 and the lid part 27 and having a third molding compound flow channel formed therein. A division acceleration part for accelerating the division of the molding compound by continuously changing the cross-sectional area of the third molding compound flow channel is formed to the inner peripheral surface of the third molding compound flow channel. Even if the temperature of an injection nozzle 21 is set high and the temperature of the molding compound becomes high when a movable mold is allowed to retreat after mold opening, the division of the molding compound on the side of the cylinder member and the molding compound on the side of a sprue 16 is accelerated.
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