| 摘要 |
PURPOSE: An air spraying device for a mold is provided to effectively remove an scale or a foreign material from the cooling hole of the mold since the water and the compressed air generate vortex and turbulence while moving to the cooling hole. CONSTITUTION: An air spraying device for a mold comprise a mold(10), an air feeding unit(30) and an air spraying unit(20). The mold comprises a water inlet, a water outlet, a coupling groove(14) and a core(11). The coupling groove is formed from the inlet at an interval. The air passing hole(15) of the core is communicated between the inlet and the coupling groove. The air feeding unit guides the feeding of the compressed air to the coupling groove. The air spraying unit is installed in the inlet. The air spraying hole(23) of the air spraying unit sprays the compressed air obliquely.
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