Multi-die-cavity die head wall thickness synchronous adjusting device

The utility model relates to the technical field of blow molding, in particular to a multi-mold-cavity mold head wall thickness synchronous adjusting device which comprises a hydraulic cylinder, a core rod, a fixed plate, a movable plate, a connecting rod, a core rod fixing plate, a mouth mold and a mouth mold moving rod. A piston of the hydraulic cylinder penetrates through the middle of the fixed plate and is fixedly connected with the middle of the movable plate on the lower portion, one end of the connecting rod is fixed to the fixed plate, the other end of the connecting rod penetrates through the movable plate and is in sliding fit with the movable plate, the other end of the connecting rod is fixedly connected with the core rod fixing plate on the lower portion, and the upper portion of the core rod is fixed to the core rod fixing plate. The die is arranged on the lower portion of the core rod, the die is fixedly connected with the die moving rod, the upper end of the die moving rod penetrates through