Abstract: An apparatus for the packaging of articles with pieces of sheet of heat-shrinking material includes three coplanar feed, wrapping and product delivery conveyors, a conveyor for delivering sheets of the wrapping material and wrapping device for wrapping the products to operate in a continuous operation, a device is provided for operating the machine continuously and the device for supplying the sheets with at least two aligned conveyor members of which the downstream member is equipped with a device which cyclically differentiates the drive transmission speed.

Abstract: A machine for packaging articles of any size with sheets of material comprising a wrapping conveyor, conveyor for delivering and receiving articles to and from the wrapping conveyor and endless wrapping conveyor with a bar moving along a track which passes around the wrapping conveyor in which the wrapping conveyor and the conveyor for receiving the articles have structured conveying surfaces with ends which can be positioned adjacently but at a distance and adjusted in a complementary movable way in two directions and the conveyor and wrapping conveyor with a bar is supported by a supporting structure which is in turn rotatably supported so that it can be adjustably positioned about a horizontal axis.

Abstract: An apparatus for grouping together articles in groups of variable quantities for feeding to packaging machines in a continuous movement has a pair of links to corresponding cursor-guide members in a mirror-image arrangement and is provided for positioning at least one of the cursor-guide members rotatably about a common axis drive shaft arrangement with the corresponding guide members rotatable about corresponding motorized shafts having mutually coaxial axes ending in counterthrusters and thrusters respectively of the continuous conveyor of objects to be packed by the packaging machine.

Abstract: A stacking unit positioned between a machine that packs groups of products in single packs and a machine that wraps stacked packs using a strip of shrink-wrap material. A first horizontal conveyor is coplanar with the conveyors of the packing and wrapping machines and a pair of longitudinal closed-ring conveyors equipped with lifting devices in a constant vertical attitude are positioned either side of the first conveyor with the respective upper conveyor branch at different levels. The pair of longitudinal side conveyors equipped with the lifting devices have discs supported rotatably with their periphery at a higher level than that of the single packs being transferred onto the above-mentioned first conveyor.

Abstract: An apparatus for the application of strips of material to a heat-shrinkable web of wrapping in packaging machines with a tunnel furnace for the formation of the handle of the wrapped products. The apparatus has a wheel assembly supported to rotate about a horizontal axis with the wheel substantially tangential to a substantially horizontal section of the heat-shrinkable material strip, a feeder for the supply of a tape of adhesive material to the periphery of the wheel with the adhesive surface facing outwardly, a container for the supply, in spaced succession, of strips of material to the adhesive surface of the tape of adhesive material, a cutter for cutting the adhesive tape between two successive strips along the path of the wheel and a pressure roller which may be radially displaced with respect to the wheel to apply, by adhesion, the adhesive end areas of the sections of adhesive tape having a corresponding strip applied to them to the strip of heat-shrinkable material.

Abstract: An improved machine for wrapping continuously moving articles with heat-shrinkable material comprising a series of at least three horizontally aligned coplanar longitudinally spaced conveyors provided with a monodirectional continuous movement and with the adjacent sections of the two conveyors furthest downstream wound on at least a corresponding pair of return rollers supported by a support carriage which may be moved in an alternate manner parallel to the conveyor direction, means for supplying sheets of wrapping material and a pair of winding bar means caused by conveyor means to move continuously around the article being supplied on the intermediate conveyor such that during each rotation, while one of the bars takes a sheet of wrapping material and brings it across the path of a following continuously moving article so as to wind this material about three faces of this article, the other bar winds the material about the fourth face of the preceding article and, by means of the two adjacent conveyors fur

Abstract: A plant for wrapping products has a packaging machine for packaging groups of products in single packages and a machine for wrapping these packages with a strip of heat-shrinkable material. An apparatus for stacking these single packages to be wrapped is disposed between these machines and comprises a first horizontal conveyor and pair of conveyors adjacent and parallel to the opposite sides of this first conveyor. Each conveyor of the pair is formed by a plurality of conveyor units with their respective upper branches or stretches at different levels and each provided with uniformly spaced lifters disposed opposite one another in a symmetrical manner. These conveyor units have a continuous movement, to maintain the lifting means symmetrically opposite one another in a constant vertical position and the lifters are caused to oscillate about a respective horizontal axis for the takeup and discharge of the single packages being stacked.

Abstract: A machine for packing articles supplied in a uniformly spaced manner by means of a continuously moving conveyor with a web which is progressively cut from a roll of heat-shrinkable material and projects from two lateral faces of the articles and brought in sequence by suction feed means along the respective longitudinal edges across the feed path between individual successive articles so as to be folded over the front, upper, lower and rear faces of a corresponding article with a trailing end portion extending beyond the respective lower face. The conveyor comprises two adjacent conveyor belt sections with the web feeder means supported in the area of the zone lying between the two adjacent conveyor belt sections.