Naked wax injection mold for femur

The utility model relates to a thighbone naked wax injection mold which comprises an upper mold assembly provided with a plurality of upper cavities, a lower mold assembly provided with a plurality of lower cavities and a mold core device installed on the lower mold assembly, and the mold core device comprises a middle mold core, an upper mold core, a lower mold core, a mold core connecting base, a mold splitting spring, a driving device, a follow-up device and a side mold core. The middle mold core is connected with the driving device through the mold core connecting base, the driving device is fixed to the lower mold assembly, the upper mold core and the lower mold core are installed on the two sides of the middle mold core in a sliding mode and connected with the mold core connecting base through the mold splitting spring, the follow-up device is connected with the upper mold core, the lower mold core and the middle mold core, and the side mold cores are fixed to the lower mold assembly. And the cavity is