Automatic opening and closing linkage structure and full-automatic four-door mold box

The invention discloses an automatic opening and closing linkage structure and a full-automatic four-door mold box, the linkage structure comprises a first linkage mechanism, a linkage support and a second linkage mechanism, and the second linkage mechanism realizes synchronous action with the first linkage support through the linkage support; according to the linkage structure, translation opening and closing in two directions are achieved through one power source, the overall structure is simple, and reliability is good; the linkage structure adopting the translation opening and closing mode is applied to the four-door mold box, and especially when a mold base with internal and external corners is manufactured, the problem that the surface integrity of the mold base is damaged due to the fact that an interference area exists between the mold box and the mold base in a traditional mold opening mode of rotating around a fixed point can be effectively solved, so that the surface smoothness of the mold base is