Efficient online spraying device for spraying surface of spool

The utility model discloses an efficient on-line spraying device for spool surface spraying processing, which comprises a workbench, the top of the workbench is provided with a mounting frame, the bottom of the mounting frame is provided with a spraying mechanism assembly, the top of the workbench is provided with a fixing plate, one side of the top of the workbench is provided with a supporting plate, and the other side of the workbench is provided with a rotating shaft. A U-shaped frame is installed on the other side of the top of the workbench, a guide rod is installed on the inner side wall of the U-shaped frame, and a servo motor is installed at one end of the U-shaped frame. The mounting block is in threaded connection with the lead screw, and the mounting block is in sliding connection with the guide rod, so that when the lead screw rotates, the mounting block can drive the bearing shaft and the spool on the bearing shaft to horizontally move to pass through the lower part of the spraying mechanism ass