Injection molding machine mold cooling system in which cooling efficiency of the mold is improved by the double-pipe

摘要

The present invention relates to a cooling system for a mold for an injection molding machine provided with a dual pipe. Particularly, the present invention relates to a cooling system for a mold for an injection molding machine provided with a dual pipe, wherein a plurality of mold cooling pipes is disposed inside of the mold and a supplementary cooling pipe is provided inside of the mold cooling pipes. The cooling system for a mold for an injection molding machine provided with a dual pipe according to the present invention comprises: a feed pipe disposed at each interval of processing steps for cooling the mold having a molding space for injection molding; a return pipe disposed at each interval of processing steps for transferring cooling water discharged after cooling the mold; and a plurality of sensors provided for measuring the pressure and temperature of the cooling water flowing in the feed pipe and return pipe. Particularly, the cooling system comprises: a cooling water storage tank including a chamber for receiving cooling water and a cooling tower provided at the top of the chamber; a cooling controlling section which receives the cooling water from the cooling water storage tank and a mold cooling section, receives the information about pressure and temperature measured from the sensors, controls the transferred cooling water to be cooled to a predetermined temperature by using the information about pressure and temperature measurements, and transfers the cooled cooling water to the mold cooling section or the cooling water storage tank; and a mold cooling section formed in the shape of a dual pipe, provided inside of the mold, and allowing the cooling water supplied from the cooling controlling section to cool the mold.