Battery tray stacking device

The utility model provides a battery tray stacking device. The battery tray stacking device comprises a tray stacking support, a tray entering conveying line, a tray entering conveying line lifting mechanism, a tray carrying mechanism, a group tray exiting conveying line and a group tray exiting conveying line lifting mechanism. According to the battery tray stacking device, the tray entering conveying line and the assembled tray exiting conveying line are arranged on the lower layer of the tray stacking support, the tray carrying mechanism is arranged on the upper layer of the tray stacking support, and the tray stacking station is arranged on the middle layer of the tray stacking support over the assembled tray exiting station. The tray entering conveying line lifting mechanism vertically lifts the trays on the tray entering conveying line at the tray entering station to the upper layer of the tray stacking support, and then the trays are horizontally moved to the position above the tray stacking station th