Abstract: A working process of a machine for wrapping products in packages, carried out with a thermoplastic material film from a reel, the process comprising: reducing a transversal section of a hollow mandrel to be smaller than a transversal dimension of a bundle of products, positioning a sealing device in a position for sealing overlapped longitudinal edges of the film while forming a new tubular film casing, arranging two vertically mobile elements of a sealing and transversal cutting assembly in a closure position on the head portion of the new tubular film casing and on the tail portion of the tubular film casing of a finished package, and conveying the new tubular film casing away from the mandrel, and repeating the process so that the product placed inside the tubular casing by the mandrel is wrapped in a tight adherent manner due to the elastic retraction of the film.

Abstract: A working process of a machine for wrapping products in packages, carried out with a thermoplastic material film from a reel, comprising: a loading station for the products to be packaged; a hollow mandrel with a relative forming shoulder; a sealing device for forming a seal of the longitudinal edges of the film; a horizontally mobile pusher for pushing a bundle of products from the loading station through the mandrel; a sealing and transversal cutting assembly formed by two vertically mobile elements mounted on a horizontally mobile primary carriage a conveyor a secondary carriage carried by the primary carriage; comprising the following operating steps: reducing the transversal section of the mandrel to a diameter smaller than the diameter of the bundle of products positioning the sealing device in a position for sealing the overlapped longitudinal edges of the film while forming a new tubular film casing; arranging the elements of the assembly in a closure position on the head portion of the new tubular

Abstract: A packaging machine with a carousel with horizontal axes, particularly suitable for packaging rolls of paper or packs of paper serviettes or other solid products of variable size, of the type that comprises a plurality of identical seats on the same carousel, angularly equidistant from each other, radially open towards both the outside and the inside and each formed by a longitudinal wall fastened perpendicularly to said carousel and by a parallel and opposite wall, the distance of which from said fixed longitudinal wall can be adjusted to ensure that, with a movement parallel to the axis of the carousel, a product of variable size with its wrapping sheet can be inserted between these walls, and wherein the same seats comprise, between said longitudinal walls, two transverse walls designed to cooperate with the ends of said product with the wrapping sheet inserted in the same seats, which for this must have an adjustable reciprocal distance, whereby at least one of these transverse walls is connected to means

Abstract: There is described a machine for packaging products in tubular wrappings of thermoplastic material obtained from continuous film unwound from a reel, equipped with a double transverse heat-sealing and intermediate cutting assembly that, with a horizontal translation movement, accompanies the pack that the assembly is closing the trailing end of to be unloaded while it is simultaneously closing the leading end of the tubular wrapper of the future pack that the heat-sealing and cutting assembly, also due to the presence thereon of pressers and counter-pressers, extracts from a tube-forming and longitudinal heat-sealing mandrel and that, by the same assembly, is separated from the pack upstream with a transverse cut.

Abstract: There is described a device with quick change blades for the transverse cutting or perforation, for the whole of the width and progressively, of continuous and moving webs of paper, plastic or other materials, also with different thicknesses, wherein the fixed blade assembly and the rotary blade assembly are installed on the side members of a main base frame, with the drive means and with the means for adjusting the parallelism and the degree of interference between said two blades, said main base frame being installed removably on a secondary base frame, with means for adjusting the transverse alignment of the same main frame with the blade assemblies with respect to the longitudinal axis of the web to be cut, to allow dynamic execution on this web of a cut perpendicular to the longitudinal sides of the same web, this device being provided with means that allow quick installation and, when necessary, replacement with a new device each time both said blades require in-depth maintenance and adjustments, all fo

Abstract: A packaging machine with a carousel with horizontal axes, particularly suitable for packaging rolls of paper or packs of paper serviettes or other solid products of variable size, of the type that comprises a plurality of identical seats on the same carousel, angularly equidistant from each other, radially open towards both the outside and the inside and each formed by a longitudinal wall fastened perpendicularly to said carousel and by a parallel and opposite wall, the distance of which from said fixed longitudinal wall can be adjusted to ensure that, with a movement parallel to the axis of the carousel, a product of variable size with its wrapping sheet can be inserted between these walls, and wherein the same seats comprise, between said longitudinal walls, two transverse walls designed to cooperate with the ends of said product with the wrapping sheet inserted in the same seats, which for this must have an adjustable reciprocal distance, whereby at least one of these transverse walls is connected to means