Rewinding machine and method for the production of logs of paper material
AssigneeFutura S.P.A.
InventorsFabio Perini, Andrea Catalini
Life of this patent
Estimating the term…
Abstract
Rewinding machine for producing paper logs by winding a paper web, include: an element for feeding a paper web along a predetermined path at a predetermined feeding speed; web pre-cutting elements; web winding elements; web sizing elements, with a pad adapted to cyclically apply glue by contact on the web, the pad being mounted on a pad-holder device connected with a corresponding actuator. The pad is mounted on the pad-holder device by an elastic support which deforms elastically, such that the pad moves elastically towards the pad-holder, when it is subjected to a pressure and moves automatically in the opposite direction returning to its previous position when the pad is no longer subjected to a pressure.
Claims12
A rewinding machine for the production of paper logs obtained by winding a paper web, comprising:
- feeding means for feeding a continuous paper web along a predetermined feeding path for feeding the paper web with a predetermined feeding speed;
- pre-cutting means adapted to provide a series of pre-cutting discontinuous transverse lines for dividing the web into sheets of predetermined length;
- winding means, arranged in a winding station located downstream of said web feeding means, adapted to wind the web for making logs of paper material;
- and
- sizing means arranged and acting along said feeding path of the web, upstream of said winding station, the sizing means comprising a glue application pad adapted to cyclically apply glue by contact on the web in the proximity of a pre-cutting line thereof, said pad being mounted on a pad-holder device connected with a corresponding actuator;
- wherein
- the pad is mounted on the pad-holder device by an elastic support which deforms elastically, such that the pad moves elastically towards the pad-holder, when it is subjected to a pressure and moves automatically in the opposite direction returning to its previous position when the pad is no longer subjected to a pressure.
A method for the production of paper material logs, comprising:
- feeding a continuous paper web along a predetermined web feeding path with a predetermined feeding speed;
- providing a series of pre-cutting discontinuous transverse lines for dividing the web into sheets of predetermined length to be separated by tear;
- in a winding station, winding the web to make paper logs;
- and
- providing sizing means along said web feeding path, the sizing means comprising a glue application pad configured to cyclically apply glue by contact on the web in proximity of a pre-cutting line thereof, said pad being mounted on a pad-holder device;
- wherein
- said pad moves elastically with respect to the pad-holder device.
Dependencies are inferred from the claim text.