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US 9,701,505 B2Granted
Rewinding machine and method for the production of rolls of web material
AssigneeFabio Perini S.p.A.
InventorsRoberto Morelli, Franco Montagnani, Romano Maddaleni
Life of this patent
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Abstract
A rewinding machine is described with a winding cradle defined by three rollers and including a fourth winding roller defining with the first winding roller a cradle in which the web material is pushed by a winding core to the beginning of each winding cycle, to cause severing of the web material without the need for controlled mechanical parts.
Claims30
A method for winding a web material around a winding core and producing a roll of web material comprising:
- providing a first winding roller and a second winding roller forming a winding nip through which winding cores and web material pass;
- winding a predetermined quantity of said web material around a first winding core to form a first roll;
- after winding said first roll, severing the web material and starting to wind a second roll around a second winding core,
- wherein the web material is severed by lengthening a path of said web material between said first winding roller and a further roller, arranged upstream of said first winding roller with respect to a direction of advancement of said web material, around which said web material is guided, and wherein the first winding roller and the further winding roller rotate in a common direction.
1 more element
A peripheral rewinding machine for producing rolls of web material wound around winding cores comprising:
- a first winding roller and a second winding roller defining a winding nip;
- an inserter for inserting winding cores in said winding nip, so that said winding cores pass through said winding nip;
- a third winding roller located downstream from said winding nip, with said first winding roller, said second winding roller and said third winding roller defining a winding cradle;
- a feed path for said web material that extends through said winding nip;
- wherein upstream from said winding nip, a fourth winding roller is present distanced from said first winding roller and forming with said first winding roller an area for severing the web material;
- wherein the feed path of the web material extends around said fourth winding roller and around said first winding roller in said area for severing;
- and wherein the first winding roller and the fourth winding roller are controlled for rotation in a common direction.
4 more elements
Dependencies are inferred from the claim text.