Equipment for removing paper from parent reels used for the production of logs of paper material
AssigneeFutura S.P.A.
InventorsFabio Perini, Giovacchino Giurlani
Life of this patent
Estimating the term…
Abstract
Equipment for removing paper from parent reels used for the production of paper logs of paper material, including a support system adapted to support an exhausted parent reel, where the exhausted parent reel includes a tubular core on which residual paper to be removed is wound, and including removal capabilities for removing the residual paper from the core when the exhausted parent reel is placed on the support system. The removal capabilities include a suction cylinder having a horizontal axis onto which the paper is transferred by effect of the contact between the suction cylinder and the exhausted parent reel and by effect of the rotation of the suction cylinder around the horizontal axis.
Claims15
Equipment for removing paper from parent reels used for the production of paper logs of paper material, comprising:
- a support system adapted to support an exhausted parent reel, wherein the exhausted parent reel comprises a tubular core on which residual paper to be removed is wound, and comprising removal means for removing the residual paper from said core when the exhausted parent reel is placed on said support system, and said removal means comprises:
- a base structure on which, along a horizontal axis, is mounted a suction cylinder having an outer surface perforated and communicating with an internal cavity that, in turn, is connected to a suction unit adapted to produce a depression inside the suction cylinder, whereby said depression is transmitted to the outer surface of the suction cylinder;
- an actuator that determines the rotation of the suction cylinder around said axis with a predetermined angular speed and direction of rotation,
- and said support system is adapted to support the exhausted parent reel parallel to the suction cylinder;
- the equipment further comprising:
- means for adjusting the distance between said support system and said cylinder, to allow contact between the suction cylinder and the exhausted parent reel in a phase of removal of the residual paper;
- detection means for detecting the instantaneous diameter of the exhausted parent reel placed on the support system;
- a control unit connected to said detection means and adapted to control the actuator which determines the rotation of the suction cylinder as a function of the instantaneous diameter of the exhausted parent reel detected by the detection means, said control unit being programmed to stop the rotation of the suction cylinder when the instantaneous diameter of the exhausted parent reel reaches a predetermined minimum value;
- and
- said rotation of the suction cylinder and the depression on the outer surface of the suction cylinder determine the rotation of the exhausted parent reel and the transfer of the residual paper from the exhausted parent reel to the suction cylinder when the suction cylinder and the exhausted parent reel come into contact.
Process for removing paper from parent reels used for the production of paper logs of paper material, comprising:
- providing a support system adapted to support an exhausted parent reel, wherein the exhausted parent reel comprises a tubular core on which residual paper to be removed is wound;
- providing removal means for removing the residual paper from said core when the exhausted parent reel is placed on said support system, and said removal means comprising:
- a base structure on which, along a horizontal axis, is mounted a suction cylinder having an outer surface perforated and communicating with an internal cavity that, in turn, is connected to a suction unit adapted to produce a depression inside the suction cylinder, whereby said depression is transmitted to the outer surface of the suction cylinder;
- and
- an actuator that determines the rotation of the suction cylinder around said axis with a predetermined angular speed and direction of rotation,
- and wherein said support system is adapted to support the exhausted parent reel parallel to the said suction cylinder;
- the process further comprising:
- adjusting the distance between said support system and said suction cylinder, to allow contact between the suction cylinder and the exhausted parent reel in a phase of removal of the residual paper;
- detecting the instantaneous diameter of the exhausted parent reel placed on the support system;
- and
- controlling the actuator which determines the rotation of the suction cylinder as a function of the instantaneous diameter of the exhausted parent reel, and stopping the rotation of the suction cylinder when the instantaneous diameter of the exhausted parent reel reaches a predetermined minimum value;
- wherein said rotation of the suction cylinder and the depression on the outer surface of the suction cylinder determine the rotation of the exhausted parent reel and the transfer of the residual paper from the exhausted parent reel to the suction cylinder when the suction cylinder and the exhausted parent reel come into contact.
Dependencies are inferred from the claim text.