| 摘要 |
There is described a folding unit (1) for producing folded packages (2) of pourable food products from relative sealed packs (3). The folding unit comprises conveying means (34) fed with a plurality of packs (3) at an input station (21) and advancing the packs (3) along a forming path (B) to an output station (22), and folding means (23, 24) cooperating, in use, with each pack (3) to perform at least one folding operation on said pack (3); the conveying means (34) comprise an endless transport element (60) formed by a plurality of mutually hinged rigid modules (35) and looped about at least one driving sprocket (26) and at least one idler element (25); the idler element (25) comprises cam means (100) cooperating with respective cam followers (101) of the modules (35) and so shaped to compensate the periodical variation of the radius of the modules (35) on the driving sprocket (26) due to their rigidity. |
