| 摘要 |
PURPOSE: A hot runner nozzle for an injection molding device for preventing a string is provided to promote a hardening of a resin when cooling by simply changing a structure of the hot runner nozzle without adding a separate component. CONSTITUTION: A hot runner nozzle for an injection molding device for preventing a string comprises a hot runner nozzle body(200), a nozzle tip(100), and a cooling jacket(300). The hot runner nozzle body includes a hot runner(201) and a hot runner nozzle inlet end portion(202). The nozzle tip is connected to the hot runner nozzle inlet end portion so that a gate(101) where molten resin is injected is formed. The cooling jacket is installed in the outer periphery of the gate and the hot runner nozzle inlet end portion so that cooling water is circulated.
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