| 摘要 |
<p>An apparatus for wrapping groups (1) of products with plastic film comprises: a platform (2) that rotates about a vertical axis (Z) and supports a group (1) of products which, as the platform (2) rotates, are wrapped with the film (3) to form a package; a reel (4), from which the film (3) is unwound, which rotates about a vertical axis (Z') and which can move up and down in such a way as to wrap the group (1) in height as the platform rotates; a unit (5) for gripping and tearing the film (3) mounted outside the profile of the platform (2) and designed to intercept and grip at least one portion of the film (3) located between the group (1) and the reel (4) once the group (1) has been wrapped, in such a way that, acting in conjunction with a partial rotation of the platform (2), it tears the film (3) at that portion to form an end or trailing free edge (3b) of film torn off by the gripping and tearing unit (5). The apparatus (100) further comprises means (6) for sealing the trailing free edge (3b), mounted close to the platform (2) and synchronised with the gripping and tearing unit (5) to stably affix the trailing free edge (3b) to the wrapped product group (1).</p> |
