Battery cell carrier cleaning device and cleaning method

The invention relates to the technical field of carrier cleaning, in particular to a battery cell carrier cleaning device and method.The battery cell carrier cleaning device comprises a conveying line for conveying trays, the conveying line is transversely arranged, and the battery cell carrier cleaning device further comprises a top face and straight side face milling mechanism, an inclined side face milling mechanism, an end face milling mechanism, a brush sweeping mechanism and a dry ice blowing mechanism; the top face and straight side face milling mechanism, the inclined side face milling mechanism and the end face milling mechanism are sequentially arranged on the right portion of the conveying line at intervals in the conveying direction of the conveying line and used for smashing paint on the surface of the carrier. The brush cleaning mechanism is arranged in the middle of the conveying line and used for cleaning broken paint on the surface of the carrier. The dry ice blowing mechanism is arranged at