Automatic steel bar spraying device

The utility model relates to the technical field of steel bar production and manufacturing, in particular to an automatic steel bar spraying device which comprises a rack, a feeding assembly, an electric arc spraying assembly, a coating spraying assembly and a drying assembly. A limiting plate is fixedly connected to the rack, the feeding assembly comprises a feeding conveying roller and a driving part, the feeding conveying roller is rotationally connected to the rack, the driving part is used for driving the feeding conveying roller to rotate, and rotating stripes are arranged on the surface of the feeding conveying roller and spirally arranged around the surface of the feeding conveying roller. The electric arc spraying assembly, the coating spraying assembly and the drying assembly are sequentially arranged in the feeding direction of the feeding assembly. By means of the rotating stripes on the feeding conveying rollers, the feeding conveying rollers can drive the long steel bars to rotate in the axis di