CALENDER FOR THE TREATMENT OF WEB-LIKE MATERIALS

    公开(公告)号:US20220112642A1

    公开(公告)日:2022-04-14

    申请号:US17425793

    申请日:2020-02-18

    Applicant: FUTURA S.P.A.

    Abstract: Calender for the treatment of web-like materials, including a fixed structure supporting two heated rollers reciprocally arranged so as to form a nip traversable by web-like materials, where each roller has pins mounted on bearings. The structure includes two lower levers and two upper levers adapted for exerting on the bearings forces oriented according to not coinciding directions, each lever being connected with an actuator that controls its rotation around a horizontal axis to put it in a first engagement position of the respective bearing and in a second release position, such that in the second position of the levers the extraction of the rollers from the calender is allowed.

    REWINDING MACHINE FOR PRODUCING PAPER LOGS

    公开(公告)号:US20210269269A1

    公开(公告)日:2021-09-02

    申请号:US17255020

    申请日:2019-05-30

    Applicant: FUTURA S.P.A.

    Abstract: Rewinder for making paper logs of paper material including a detection system with optical means adapted to detect, in a succession of predetermined detection times, a succession of diameters assumed in such times by a log being formed in a winding station and a programmable electronic unit which compares the diameters measured by the optical means with a succession of corresponding preset diameters and to calculate a sequence of differences. The processing unit receives a signal relating to the value of the actual diameter of the completed log and determines a parameter related to the trend over time of the differences. Elements for adjusting the thickness of the paper web automatically adjust said thickness if the parameter is between predetermined values and.

    REWINDING MACHINE FOR PRODUCING PAPER LOGS

    公开(公告)号:US20210171306A1

    公开(公告)日:2021-06-10

    申请号:US17046472

    申请日:2019-05-21

    Applicant: FUTURA S.P.A.

    Abstract: Rewinder for making paper logs, including a winding station with a first winding roller and a second winding roller delimiting a nip and a third winding roller downstream of the other rollers. The rewinder includes optical elements for detecting, at a predetermined time, an actual position of each log in said winding station and an electronic unit connected to the optical elements and programmed to compare the actual position with a theoretical position of the log at the time, the electronic unit being connected to at least one motor driving the rollers and programmed to modify the speed of the at least one motor when a deviation between the actual and theoretical positions exceeds a pre-established value, the electronic unit being also programmed to operate said optical elements at the time.

    Machine and process for the production of logs of paper material

    公开(公告)号:US10829328B2

    公开(公告)日:2020-11-10

    申请号:US16494460

    申请日:2018-03-02

    Applicant: FUTURA S.P.A.

    Inventor: Fabio Perini

    Abstract: Rewinding machine for the production of logs of paper material, including a winding station in which is fed a paper web and, in sequence, more tubular cores, and in which station winding are arranged a first, a second and a third winding roller cooperating with each other to wind a predetermined amount of said paper web onto each core. The machine includes a fourth winding roller which is connected to respective moving elements adapted to arrange it in a first inoperative position until the diameter of a log in the winding station is lower than a first predetermined value and a second operating winding position when the diameter of the log being formed is equal to said first predetermined value, the moving elements being controlled to maintain the fourth roller in the second operating winding position until the diameter of the log reaches a second final value higher of the first predetermined value.

    EQUIPMENT FOR REMOVING PAPER FROM PARENT REELS USED FOR THE PRODUCTION OF LOGS OF PAPER MATERIAL

    公开(公告)号:US20200087092A1

    公开(公告)日:2020-03-19

    申请号:US16473028

    申请日:2018-03-26

    Applicant: FUTURA S.P.A.

    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.

    PLANT AND PROCESS FOR THE PRODUCTION OF PAPER LOGS

    公开(公告)号:US20200009847A1

    公开(公告)日:2020-01-09

    申请号:US16468176

    申请日:2017-12-01

    Applicant: FUTURA S.P.A.

    Abstract: Plant for the production of paper logs, including at least one unwinder that supports a reel from which corresponding ply of paper unwounds, at least one processing unit that is supplied with the ply and is configured to modify the structure or conformation of the same ply, guiding means for guiding the ply arranged along a predetermined path between the at least one unwinder and the processing unit. The guide means are configured to provide a nip traversed by the ply at a preliminary stage of drawing-in of the ply, the nip being subsequently eliminated when the step of drawing-in is completed.

    Device for handling paper reels in paper converting plants

    公开(公告)号:US10364114B2

    公开(公告)日:2019-07-30

    申请号:US15512758

    申请日:2015-09-17

    Applicant: FUTURA S.P.A.

    Inventor: Fabio Perini

    Abstract: Device for handling paper reels, comprising a bridge crane (CP) with movable arms (BC) each of which is adapted to engage a pin (P) insertable into a corresponding side of a reel (1) and a platform (PB) adapted for supporting the reel (1). The device further comprises detection means adapted to detect load variations on said arms (BC) during insertion of the pins (P) inside the reel (1), and moving means adapted to achieve a relative movement between the reel (1) and the arms (BC) when the absolute value of a variation of the load detected by said detection means exceeds a predetermined limit up to bring said value below the predetermined limit.

    Pin for supporting paper reels in paper converting plants

    公开(公告)号:US10315873B2

    公开(公告)日:2019-06-11

    申请号:US15512732

    申请日:2015-09-17

    Applicant: FUTURA S.P.A.

    Inventor: Fabio Perini

    Abstract: Support pin for supporting reels of paper material, comprising an outer side (PX) and an inner side (PN), with the inner side (PN) that is adapted to be inserted into a reel (1) of paper material and with the outer side (PX) that remains on the outside of the same reel (1) when the inner side (PN) is inside the reel (1), said outer side (PX) being provided with a hooking portion (3) adapted to be engaged by means (CP) adapted to vertically move the pin (P). The outer side (PX) of the pin (P) is constituted by a shank (2) whose longitudinal axis coincides with the longitudinal axis (x-x) of the pin (P) and said hooking portion comprises an eyelet formed on the shank (2) and delimited by two parallel arms (30) that emerge radially from the shank (2) and are joined by a body (31) parallel to said longitudinal axis (x-x).

    Control device for blades sharpening

    公开(公告)号:US10029380B2

    公开(公告)日:2018-07-24

    申请号:US15038866

    申请日:2014-10-30

    Applicant: FUTURA S.P.A.

    Abstract: Device for controlling the sharpening state of a blade (2) having a cutting edge (20) delimited by two sides (21, 22) converging towards a plane (X) that contains the cutting edge itself. The device comprises two control surfaces each of which is in contact with a corresponding side (21, 22) of the cutting edge (20) and is connected with a transducer (R4), which produces an electrical displacement signal (S4) proportional to a displacement of the control surface with respect to said plane (X). Furthermore, the device comprises a processing unit (E) that receives said displacement signals (S4) and compares them, emitting an error signal if the comparison produces a value that exceeds a predetermined limit. The control surfaces are the surfaces that delimit an external groove (40) of a roller (4) that is free to translate along an axis (A4) perpendicular to said plane (X) and spaced from the blade (2) by an amount such that said cutting edge (20) passes in said groove (40).

    METHOD FOR DISTRIBUTING GLUE ON TUBULAR CARDBOARD CORES IN REWINDING MACHINES

    公开(公告)号:US20180009619A1

    公开(公告)日:2018-01-11

    申请号:US15545049

    申请日:2015-11-11

    Applicant: FUTURA S.P.A.

    Inventor: Fabio PERINI

    Abstract: Method for applying glue on tubular cores for the production of logs of paper material comprising the step of supplying in sequence more tubular cores (1) along a predetermined advancing direction (A) and the step of applying on each of said cores (1) a predetermined amount of glue, and the glue is applied on the tubular cores (1) from the above. While advancing along said direction (A) and without interrupting their run, the tubular cores (1) intercept for a predetermined time the glue (EG) released by a predetermined number of nozzles (114); and during said time interval the glue (EG) is both on the nozzles (114) and the tubular cores (1) given the absence of any element interposed between the nozzles and the tubular cores.

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