Method for attaching a cast-in heater to an injection nozzle of an injection molding apparatus and a structure for attaching an injection molding apparatus of a cast heater to an injection nozzle

摘要

PROBLEM TO BE SOLVED: To more simplify the fitting structure of a heater where the parts of a sensor holder for holding a temperature sensor are made needless, and the heater is not moved to a direction along the outer surface of an injection nozzle by a temperature sensor.SOLUTION: A casting heater 10 provided with a piercing branch hole 12 having a second through hole 12B and a first through hole 12A is prepared, the first through hole 12A is made correspond with the inserting hole 20B of an injection nozzle 20 and a temperature sensor 21 is communicated. Then, a set screw 13 is screwed to the second through hole 12B to prevent the escape of the temperature sensor 21 to the first through hole 12A.