Grinder with automatic feeding device

The invention provides a grinder with an automatic feeding device. The grinder comprises a machine case, an upright column, a first T-shaped bracket, a second T-shaped bracket and an automatic feeding device; a rotary shaft is rotationally connected between the upright column and the machine case; the cross section of the middle part of the rotary shaft is in a square shape; the first T-shaped bracket and the second T-shaped bracket sleeve the middle part of the rotary shaft and can also horizontally move on the rotary shaft; a mounting plate is fixed to the lower end of the first T-shaped bracket; a cylinder is fixed to the mounting plate; a push rod of the cylinder is fixedly connected with the lower end of the second T-shaped bracket; the first T-shaped bracket and the second T-shaped bracket are both provided with a plurality of square clamping blocks; a motor which drives the rotary shaft to rotate is arranged in the machine case; the automatic feeding device is composed of a base and a vibration disc used for placing abrasives; the vibration disc is fixed to the base; a discharge hole of the vibration disc is connected with a conduit; and the end part of the conduit is provided with a connecting end which is connected with a mouth of a steel bottle. According to the grinder, the abrasives are slowly sent into the steel bottle through the vibration disc, the two T-shaped brackets drive the steel bottle to swing or rotate together, and the function of automatic feeding is realized.