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US 2004/0200752 A1Published application
Package of rolls obtained by a wrapping machine and method for obtaining such package
AssigneeTissue Machinery Company S.p.A.
InventorGilberto Poli
Life of this patent
Estimating the term…
Abstract
A package of rolls obtained by a wrapping machine includes: a group of rolls composed of at least three layers of rolls, situated one over another; a sheet shaped in tubular form for wrapping the group of rolls, with the relative longitudinal edges overlapped and heat-welded, and with the wings of each head of the tubular sheet being folded against the rolls and then stabilized by heat-welding.
Claims10
A package of rolls obtained by a wrapping machine, the package including:
- a group of rolls composed of at least three layers of rolls, situated one over another;
- a sheet wrapped in tubular form around the group of rolls for wrapping the group of rolls, with the longitudinal edges of said sheet overlapped and heat-welded, and with the wings of each head of the sheet being folded against the rolls and then stabilized by heat-welding.
A method for obtaining a package of rolls by a wrapping machine, the method including:
- forming of a group of rolls composed of at least three layers of rolls, situated one over another;
- wrapping of said group of rolls within a heat-weldable sheet in tubular form, with the relative longitudinal edges of the sheet being overlapped;
- inward folding of the vertical wings of the heads of the sheet against the rolls;
- heat-welding of said longitudinal edges performed in time relation with said folding, inward folding of the horizontal wings of said heads, so as to make the latter match with the previous, already folded, vertical wings, performed in time relation with the edges heat-welding;
- stabilization of the folded wings of said heads by heat-welding.
2 more elements
Dependencies are inferred from the claim text.