Auxiliary drawing device for vertical automatic clay sand molding machine

The auxiliary drawing device comprises a base, the upper surface of the base is fixedly connected with a lower mold, an upper mold is arranged above the lower mold, and two sliding grooves are formed in the upper surface of the base in a penetrating mode; the motor drives the rotating rod to rotate, the rotating rod drives the first gear and the second gear to rotate, the second gear drives the two-way lead screw to rotate in the driving cavity, the two-way lead screw drives the nut and the limiting block to move towards the inner side in the sliding groove, and when the limiting block moves, the connecting block connected with the upper end is driven to move at the same time. The other end of the connecting block is connected with the telescopic block, the connecting block rises gradually, the connecting block drives the telescopic block to move at the same time, the connecting block and the telescopic block move in a groove formed in the upper die, the upper die is supported, the upper die is assisted in mo