Medium adding device for sand mill

The utility model relates to the technical field of sand mills, in particular to a medium adding device for a sand mill, which comprises an adding seat, a medium bin is arranged above the adding seat, a supporting seat is fixedly mounted on the adding seat through a fixing column, and a weight sensor is fixedly mounted at the upper end of the supporting seat. An assembling base is fixedly installed on the outer side of the medium bin, the bottom of the assembling base is fixedly installed at the stress end of a weight sensor, a medium feeding barrel is arranged between the adding base and the medium bin, a motor is fixedly installed at one end of the medium feeding barrel, a driving shaft of the motor is fixedly connected with a feeding shaft, and the feeding shaft is fixedly connected with a feeding rod. According to the feeding device of the sand mill, grinding media can be quantitatively added into the sand mill conveniently according to material grinding requirements, the effect that the adding amount of