Patent ID: 8327611

Claim:
A machine to wrap bags, wherein the machine is mounted on a vertical frame and comprises: synchronized endless belt conveying means comprising a lower first belt and an upper second belt arranged in different overlapping and parallel planes such that between them is formed a passageway for the product-filled bags onto a support; a feeder of thermo-adhesive plastic laminar film which feeds into a chamber forming a wrapping sleeve for the bags which are packed one on top of another, wherein said chamber comprises a shoulder and a sleeve-forming tube, said sleeve being partially shaped by a lower transverse welding seam defining its bottom; horizontal welding means for welding the top and bottom surfaces of the wrapping sleeve, as well as vertical welding means for welding the corresponding overlapping longitudinal edges of the film, of which the horizontal welding means are located under the outlet of the sleeve-forming tube and comprise thermal clamps used to make a closing transverse welding of the top side of the wrapping of each package and the corresponding bottom of the wrapping of the next package, with cutting means to separate the formed packages from each other while the vertical welding means are formed by a set of thermal clamps located on a plane lower than the support and above the sleeve-forming tube, coinciding with the line of overlap between the longitudinal edges of the wrapping sleeve; a bag intake box formed by an enclosure internally comprising the horizontal support of the bags that are delivered by the conveying means and an adjacent inlet opening to the sleeve-forming tube; horizontally-acting pushing means that activate a movably mounted plate which sweeps the horizontal support surface toward the sleeve-forming tube, and vertically-acting pushing means arranged over said intake box and an axis of action of which is collinear to an axis of the sleeve-forming tube, wherein said vertically-acting pushing means comprise a generally horizontal plate and when activated, said horizontal plate presses against the at least one bag supported over the opening of the sleeve-forming tube and pushes the formed wrapping sleeve and its contents through the outlet of the sleeve-forming tube.