The utility model relates to a spraying device, concretely relates to work piece spraying device, the on -line screen storage device comprises a base, a supporting frame is fixed to the bottom seat, be fixed with the spraying device main part on the support, spraying device main part bottom is equipped with bracing piece and waste outlet, be fixed with the motor on the bracing piece, be fixed withspraying clamping sets in the pivot of motor, be equipped with the metal mesh in the spraying device main part lateral wall, be equipped with drive arrangement and inlet pipe on the spraying device main part lateral wall, drive arrangement passes through the spring and presss from both sides tight piece to be connected, be equipped with the high -pressure pump on the inlet pipe, the one end of inlet pipe links to each other with the storage tank, the other end of inlet pipe passes spraying device main part lateral wall and is connected with the one end of atomizing pipe, the other end of atomizing pipe is connected with half ball cap, a tub complex through -hole is equipped with on half ball cap and atomizes, spraying device main part top is equipped with transport mechanism, the utilitymodel provides an it is serious that technical scheme can effectively overcome the quiet electric phenomena that current spraying device exists to a certain extent, and the spraying is incomplete, andcoating such as flies away everywhere at the defect.