| 摘要 |
A folding and stacking machine (100) of a web of paper, or similar products, provides a first feed line (101) (to the left in the drawing) and a second feed line (102) (to the right in the drawing). The machine (100) is, furthermore, equipped with a folding section (150) comprising a couple of folding rollers (8a, 8b) having a linear folding speed, VP. The folding rollers (8a, 8b) are adapted to receive a plurality of sheets (11) of length L that can overlap each other for a fraction Y of their length L and to fold them into a plurality of panels P. The folding and stacking machine (100) comprises, furthermore, rollers (ßa,6b), which are adapted to feed at the folding speed VP the series of cut sheets (11) but not yet folded towards the folding rollers (8a, 8b). The rollers (6a, 6b) are located at the confluence of the two sheet feeding lines (101,102). According to the invention, upstream of the first and of the second feed line (101,102) a single cutting section (60) is provided that is adapted to cut a web of paper (10) that proceeds along a direction of movement (15) at a speed V(I), where V(I) has a ratio X(I) with respect to the folding speed VP. The first and the second feed lines (101,102) can be operated selectively and independently, i.e. separately the one, or the other, or at the same time, according to the type of interfolded configuration, or desired fold type. |
