Method and machine for producing wrappings for products
AssigneeG.D Societa' Per Azioni
InventorsArmando Neri, Mario Turra
Life of this patent
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Abstract
A wrapping method and machine for producing wrappings for products, whereby a sheet of wrapping material is folded about a respective product so that at least a first and a second portion of the sheet of wrapping material are superimposed one on top of the other, with the first portion outside the second; and the two portions are sealed to each other by compressing the two portions onto each other, and sweeping at least one laser beam along a sealing portion of the first portion.
Claims38
A wrapping method for producing wrappings (2) for products (3), the method comprising the steps of folding a sheet (8) of wrapping material about a respective product (3), so that at least a first (20) and a second (21) portion of said sheet (8) of wrapping material are superimposed one on top of the other with the first portion (20) outside the second (21);
- and connecting said two portions (20, 21) to each other by sealing;
- the method being characterized in that said connecting step comprises the further steps of compressing said two portions (20, 21) onto each other, and sweeping at least one laser beam (53, 62;
- 53, 80) along a sealing portion (56, 65) of said first portion (20).
A machine (1;
- 70) for producing wrappings for products (3), the machine (1;
- 70) comprising wrapping means (7) for folding a sheet (8) of wrapping material about a respective product (3), so that at least a first (20) and a second (21) portion of said sheet (8) of wrapping material are superimposed one on top of the other with the first portion (20) outside the second (21);
- and at least one connecting means (47) for connecting said two portions (20, 21) by sealing;
- the machine (1;
- 70) being characterized by comprising compressing means (32, 44;
- 32, 75) for compressing said two portions (20, 21) onto each other;
- and a sealing assembly (47) comprising at least one laser source (52, 61;
- 52, 79) for emitting a respective laser beam (53, 62;
- 53, 80) with which to sweep a sealing portion (56, 65) of said first portion (20).
Dependencies are inferred from the claim text.