| 摘要 |
PURPOSE: A nozzle of a hot runner system is provided to improve the marketability of an injected product by effectively discharging gas flowing into the nozzle to the outside. CONSTITUTION: A nozzle of a hot runner system comprises multiple valve rings(140) and a pressure increasing mass(150). The valve rings are arranged on the top end of a nozzle tip(120) inserted into the bottom of a nozzle body(110). The pressure increasing mass is inserted into the valve ring and comprises a mass body(152) and multiple mass vanes(154). A valve pin(130) penetrates through the mass body. The mass vanes are protruded from the outer surface of the mass body. Gas, mixed with melted resin, passes through flow paths formed between the mass vanes and is sent to the gaps between the valve rings.
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