초록 ▼

An injection molding apparatus is provided with a die having a hot nozzle, and a manifold formed by a hot runner. A communication passage that is in communication with the cavity is provided in the die, a concave portion defined at an end portion of the die, and the hot nozzle includes a nozzle body

An injection molding apparatus is provided with a die having a hot nozzle, and a manifold formed by a hot runner. A communication passage that is in communication with the cavity is provided in the die, a concave portion defined at an end portion of the die, and the hot nozzle includes a nozzle body of a cylindrical shape that is inserted in the communication passage, and a flange portion that is formed at an end side of the nozzle body and is exposed outside of the communication passage, in which a band heater that heats the nozzle body is inserted between the communication passage and the nozzle body, and a ring heater that heats this flange is inserted in the concave portion and between the communication passage and the flange.

대표청구항 ▼

1. An injection molding apparatus that is provided with a die having a hot nozzle which is in communication with a cavity, and a manifold which is formed by a hot runner connected to the hot nozzle, and that fills molten resin into the cavity of the die by passing from the hot runner through the hot

1. An injection molding apparatus that is provided with a die having a hot nozzle which is in communication with a cavity, and a manifold which is formed by a hot runner connected to the hot nozzle, and that fills molten resin into the cavity of the die by passing from the hot runner through the hot nozzle, wherein: a communication passage that is in communication with the cavity is provided in the die;a concave portion defined at an end portion of the die;the hot nozzle comprises a nozzle body of a cylindrical shape that is inserted in the communication passage of the die, and a flange portion that is formed at an end side of the nozzle body and is exposed outside of the communication passage;a heater that heats the nozzle body is inserted between the communication passage and the nozzle body; anda ring heater that heats the flange portion is inserted in the concave portion and between the communication passage and the flange portion. 2. An injection molding apparatus according to claim 1, wherein the flange portion abuts the manifold.