Mold cooling device, cast manufacturing system, and cast manufacturing method

A mold cooling device configured to cool a cylindrical mold used for centrifugal casting, the mold cooling device comprising:

• a temperature detection unit configured to detect temperatures at a plurality of respective places on the mold;
• a plurality of spraying units disposed alongside one another in a direction parallel to a central axis of the mold and configured to spray a cooling medium to the mold;
• a plurality of switching units configured to switch spraying states of the cooling medium from the plurality of spraying units;
• and
• a control unit configured to control the plurality of switching units, wherein
• the temperature detection unit detects pre-cooling temperatures that are temperatures at the plurality of respective places on the mold before the cooling medium is sprayed from the plurality of spraying units to the mold, and
• when a cooling time is a time from a time point at which the cooling medium is sprayed from the spraying units to a time point at which spraying of the cooling medium is stopped, the control unit individually sets the cooling time to each of the plurality of places on the mold based on a deviation between a pre-cooling temperature detected at a place on the mold by the temperature detection unit and a target temperature and controls the plurality of switching units based on cooling times individually set to the plurality of respective places on the mold.