Tin spraying device for circuit board production

The utility model relates to the technical field of circuit board production, in particular to a tin spraying device for circuit board production, which comprises a tin spraying box and a placing assembly for placing a circuit board, the placing assembly is arranged in the tin spraying box and comprises a supporting disc, the bottom of the supporting disc is connected with the inner bottom of the tin spraying box through a motor, three sets of annularly-distributed placing plates are arranged at the top of the supporting disc, and blocking pieces are arranged at the positions, opposite to the placing plates, of the bottom of the supporting disc. According to the utility model, through the arrangement of the placing assembly, a worker can take down the circuit board after tin spraying, put the circuit board into the hot air device to scrape off the holes and redundant tin stacks, and install the circuit board to be subjected to tin spraying on the vacant placing plate, so that continuous tin spraying operation