Novel etching tank for circuit board

The utility model discloses a novel etching tank for a circuit board, which comprises an etching tank, an upper distributor is arranged at the top end in the etching tank, the bottom end of the upper distributor is in threaded connection with a hose, the bottom end of the hose is in threaded connection with a spray head, the spray head is connected with a transverse frame in a penetrating manner, and an electric push rod a is arranged on the right side of the transverse frame. The electric push rod a is installed on the surface of the supporting frame, the lower distributor is installed at the bottom end in the etching tank, the electric push rod b is installed on the outer side of the supporting frame, the upper distributor communicates with the water pump through the liquid inlet pipe a, the water pump is located on the left side of the filter box, the filter box communicates with the etching box, and the motor is installed at the top end of the etching box. A shell is welded to the outer side of the etchin