(57) The machine includes a first line for conveying and separating the piles of articles;
a second line for feeding heat-weldable wrapping sheets to a working station; a third
line, fed upstream with piles coming from the first line and passing crosswise the
working station, in which at least one pile is moved to strike the sheet placed in
waiting position in the working station. The sheet is progressively folded around
a longitudinal outline of the pile, and the relative parallel edges are overlapped
and heat-welded. The second line (2) includes a first working group (G1) aimed at
receiving a wrapping sheet (F,P*) from conveying means (16), situated upstream. The
sheet (F,F*) corresponds to a size (P,P*) of a pile of articles and is connected to
a relative film (K) by a pre-broken line. A second working group (G2), arranged in
cascade to the first group (G1), from which it receives the sheet, is aimed at cooperating
with the first group to first detach the sheet (F,F*) from the film at the pre-broken
line and then to place the sheet vertically in the working station (So). A control
unit (C) operates and verifies the first and second groups (G,1,G2).
|
|
