Sand making device capable of uniformly crushing materials

The sand making device comprises a storage barrel, a cover plate fixedly connected to the upper side of the storage barrel, a vertical rod slidably connected to the cover plate, a hammer column fixedly connected to the lower end of the vertical rod, an abutting plate fixedly connected to the upper end of the vertical rod, a first spring connected to the outer wall of the vertical rod in a sleeved mode, a moving device installed on the upper side of the cover plate, and a circular ring connected to the outer wall of the hammer column in a sleeved mode. Four guide holes are formed in the circular ring, a lifting guide rod is slidably connected in each guide hole, a pressing plate is fixedly connected to the upper end of each guide rod, a second spring is fixedly connected to the outer wall of each guide rod in a sleeving mode, and a material lifting plate is fixedly connected to the lower end of each guide rod. The sand block crushing device has the advantages that the hammer column can be controlled by the cam