Drop hammer type casting mold lettering device

The utility model provides a drop hammer type casting mould lettering device, which comprises a guide cylinder assembly, a machine head assembly, a character box assembly, a movable type mould, a drop hammer and a switch assembly, the machine head assembly is arranged at the front end of the guide cylinder assembly, the character box assembly is arranged on the machine head assembly, the movable type mould is detachably arranged on the character box assembly, the drop hammer is arranged in the guide cylinder assembly in a sliding mode, and the switch assembly is arranged on the guide cylinder assembly. The switch assembly is arranged on the side wall of the guide cylinder assembly; in a normal state, the switch assembly limits movement of the drop hammer; when the switch assembly is pressed, the drop hammer falls down to impact the machine head assembly and the character box assembly for lettering; when the switch assembly is loosened, the guide cylinder assembly is inverted, and the drop hammer returns. Acco