| 摘要 |
An apparatus for making a tubular length (1) of stretch film is applicable to machines or lines (3) for making packages (C) containing groups of products wrapped with stretch film and comprises at least the following: a feed table (4), extending in a defined direction (D), on which the groups of products presenting a front face (5) are formed; a station (6) for making the packages (C), located on the feed table (4) and equipped with means (7) for unwinding the stretch film and forming the length (1) of the film around means (8) for preforming the package (C), the means (7) for unwinding and forming the length (1) of film comprising at least one roll (9) of stretch film located close to the preforming means (8); means (10) for cutting a length of the film unwound from the roll (9); means (11) for gripping the film and moving along a substantially ring-shaped path (P) in such a way as to wind the film around the package (C) preforming means (8) and place the leading and trailing ends (1a, 1b) of the length (1) of film into contact with each other; and a unit (12) for stably joining the ends (1a, 1b) together to form a tubular length (1) of film around the preforming means (8).
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