| 摘要 |
Provided is an injection molding mold for manufacturing a needle-equipped syringe with a small dead space, the mold being capable of firmly fixing an injection needle without tilting of the needle. The injection molding mold (1) for integrally molding a resin outer tube with an injection needle (61) is provided with: a male mold (10) having a core pin (13), which has a pin tip and a pin base and is for forming the inner surface of the outer tube, and a through hole (12), which passes from the pin tip to the pin base and into which the base end of the injection needle (61) is inserted from the pin tip; a female mold (20) having a chamber (24), which communicates with the female mold opening (23b) and is for forming the outer surface of the outer tube, and an injection needle-holding hole (21a), which is provided on the same axis as the through hole (12) at the end opposite to the female mold opening (23b), communicates with the chamber (24) and is for holding the injection needle (61); a support rod (40), which is inserted from the pin base into the through hole (12), thrusts the base end of the injection needle (61) that has been inserted from the pin tip upward and supports same, and is for pressing the needle base up near the pin tip; and a resin injection gate (33) for injecting resin into the cavity space (20a) formed by the chamber (24) and the core pin (13) that has been inserted from the female mold opening (23b). |
