| 摘要 |
An apparatus for folding in two a composite continuous web (10) with anisotropic mechanical characteristics advancing in a longitudinal direction of feed (A) along a longitudinal-folding line (B) parallel to said direction (A), said web (10) having opposite longitudinal edges (14, 15) and having an original transverse dimension subject to variation during said advance, so as to bring said longitudinal edges (14, 15) into a predetermined relative position as a result of said folding, said apparatus comprising: - a station for transverse laying-out of the web (40) designed to restore said original transverse dimension of said web (10); - an alignment station (50) designed to align the centre line of said web (10) with respect to said longitudinal-folding line (B) parallel to said direction of feed (A); and - a folding station (60) designed to fold said continuous web along said longitudinal-folding line (B) parallel to said longitudinal direction (A). |
