Automatic end mold dismounting and mounting device for beam yard and using method thereof

The invention relates to the technical field of connecting pieces or other accessories for mold shells, working frame structures or mold plates, and discloses an automatic end mold dismounting and mounting device for a beam yard and a using method thereof. The automatic end mold dismounting and mounting device comprises an end mold plate and a mold dismounting device anchored onto the position, close to the end mold plate, of a side mold plate. The mold dismounting device comprises a mold dismounting jack with the bottom being anchored onto the side mold plate and the top being parallel to the length direction of a box girder, extending towards the end mold plate and further exceeding the end mold plate, and further comprises a skidding lever with one end being hinged to the top of the mold dismounting jack through a vertical pin shaft, and the other end horizontally extending towards the edge, away from the mold dismounting jack, of the end mold plate. The mold dismounting jack is a double-acting jack. And t