Method and device for laterally joining product wrappings
AssigneeG.D Societa' Per Azioni
InventorsSilvano Boriani, Antonio Gamberini
Life of this patent
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Abstract
A method and device for laterally joining product wrappings, whereby the connection of two overlapping longitudinal portions of a tubular wrapping defined by a sheet of wrapping material wrapped about the product inside a wrapping seat is at least completed as the wrapped product is unloaded from the wrapping seat by a heated counterpusher.
Claims7
A method of laterally joining product wrappings, wherein each said product wrapping is a tubular product wrapping (2) defined by a sheet (4) of wrapping material wrapped about a respective product (3) as said product is fed forward within a retaining element (7) of a wrapping conveyor (5), and wherein each said tubular product wrapping (2) comprises an overlapping lateral portion (11) defined by two opposite longitudinal portions (8, 9) of said sheet (4) of wrapping material being arranged one on top of the other, said method comprising the step of effecting a stable connection between said two portions (8, 9) of said sheet (4) of wrapping material along said overlapping lateral portion (11) as said tubular product wrapping (2) and said respective product (3) are unloaded from within said retaining element (7) of said wrapping conveyor (5) by a pusher (13) and an opposing counterpusher (14), said counterpusher (14) being heated to effect said stable connection.
A device (1) for laterally joining product wrappings, wherein each said product wrapping is a tubular product wrapping (2) defined by a sheet (4) of wrapping material wrapped about a respective product (3) as said product is fed forward within a retaining element (7) of a wrapping conveyor (5), and wherein each said tubular product wrapping (2) comprises an overlapping lateral portion (11) defined by two opposite longitudinal portions (8, 9) of said sheet (4) of wrapping material being arranged one on top of the other, said device comprising means (13, 14) for successively unloading said tubular product wrapping (2) and said respective product (3) from within said retaining element (7) of said wrapping conveyor (5), said unloading means (13, 14) comprising a pusher (13) and an opposing counterpusher (14), said counterpusher (14) being heated and cooperating with said two portions (8, 9) of said sheet (4) of wrapping material along said overlapping lateral portion (11) for effecting a stable connection between said two portions (8, 9) of said sheet (4) of wrapping material along said overlapping lateral portion (11) as said tubular product wrapping (2) and said respective product (3) are unloaded from within said retaining element (7) of said wrapping conveyor (5).
Dependencies are inferred from the claim text.