Automatic washer used for cleaning poor screen-printed substrate

The utility model discloses an automatic washer used for cleaning poor screen-printed substrates. The automatic washer comprises a first trough body (1) used for ultrasonic cleaning, a second trough body (2) used for cleaning aluminum paste on back sides of poor substrates, a third tough body (3) used for spraying, a fourth trough body (4) used for cleaning silver paste on the front sides and the back sides of the poor substrates, a fifth trough body (5) used for further cleaning, and a sixth trough body (6) used for drying, wherein the third trough body (3) is connected with a water storage tank (7) by a power pump (8), the sixth trough body (6) is further connected with an air blower (9), the six trough bodies are sequentially connected, and the bottoms of the six trough bodies are all provided with waste discharge ports (2-1) and waste discharge pipelines (3-3) communicated with the waste discharge ports. The automatic washer has the advantages that no new poor screen-printed substrates can be generated, plurality of times of washing and cleaning is not needed, the time is saved, the uniformity of the appearance of the poor substrates is favorable after being cleaned, and the automatic washer is simple in structure, convenient to operate, and favorable in cleaning effect.