An extracting device for easily exchanging a mold. The extracting device is attached to an upper side of a molding machine using an adapter plate. The extracting device includes a plurality of arms configured to rotate about vertical axes and a vertical motion arm, having a gripper, mounted to the end of the arms. The mold attached or to be attached to a mold fixing member is lifted, lowered or translated to the side of the molding machine. The arms of the extracting device are rotated to be away from a conveying path of the mold such that the arms do not obstruct the conveying path. In this way, a useful conveying path of the mold may be maintained, thereby the mold or a part of a crane or the like for the mold does not contact the extracting device and the mold may be easily exchanged.