Cover closing mechanism, packaging auxiliary device, battery packaging equipment and battery production system

The utility model relates to a cover closing mechanism, a packaging auxiliary device, battery packaging equipment and a battery production system, a first driver is used for driving a first folding piece and a second folding piece to rotate and overlap relatively, so that a packaging film located between the first folding piece and the second folding piece is folded. Due to the fact that the rotating assembly can drive the whole cover closing assembly to rotate around the first axis, and the direction of the first axis is consistent with the stacking direction between the first folding piece and the second folding piece, after folding is completed, under the action of the rotating assembly, the first folding piece and the second folding piece which are stacked can rotate around the stacking direction of the first folding piece and the second folding piece. The orientation directions of different sides of the packaging film can be changed, different side sealing operations can be conveniently completed on the cover closing mechanism, other devices do not need to be transferred, the integration of equipment is improved, and the packaging efficiency is improved.