Automatic stuffing machine for food products

An automatic stuffing machine for food products, comprising a base framework supporting at least one forming die of a product to be stuffed and a pusher adapted to cause a translation of the formed product, along an advancement direction, through a stuffing tube that supports externally at least one tubular casing, until the product exits from the stuffing tube, there being at least one tube changer body that supports at least two stuffing tubes and can be actuated to move with respect to said base framework, in order to bring, in each instance, one of said stuffing tubes to a working position, in which said one of said stuffing tubes is located substantially at the area of action of said pusher, and at least one other stuffing tube to a resting position, said at least one other stuffing tube is adapted to allow to load a new tubular casing, and wherein the automatic stuffing machine further comprises elements for removable joining between said at least one forming die and at least the stuffing tube arranged in the working position, said elements for removable joining are adapted to pass from an active condition, in which said elements for removable joining provide a continuous sealed connection with respect to the product to be stuffed between said forming die and the stuffing tube arranged in the working position, to an inactive condition, in which said elements for removable joining define a space between said forming die and the stuffing tube arranged in the working position, in order to allow the movement of said tube changer body with respect to said base framework, and vice versa.