Water-cooled hub casting mold with local heat insulation function

The utility model discloses a water-cooled hub casting mold with a local heat insulation function. The mold comprises an inner mold, a bottom mold, a top mold and an outer mold, cooling water channelswhich are communicated with each other are formed in the bottom plate and the side wall of the inner mold; a cooling water pipe penetrates through the top die; the cooling water pipe communicates with the middle of the upper surface of the inner die bottom plate. Cooling water can flow into the cooling water channel; two heat insulation ring grooves are formed in the inner surface of the side wall of the inner mold; wherein one group of heat insulation ring grooves is located at one end of the inner mold side wall close to the top opening and corresponds to one end of the cooling water channel close to the top of the inner mold, and the other group of heat insulation ring grooves is located at one end of the inner mold side wall close to the bottom plate and corresponds to a corner part between the inner mold bot