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公开(公告)号：US20180179009A1
公开(公告)日：2018-06-28
申请号：US15737484
申请日：2016-05-27
Applicant: FUTURA S.p.A.
Inventor： Fabio Perini , Andrea Catalini , Manolo Tamagnini , Gabriele Betti
Abstract: Rewinder for the production of logs. A feeding element adapted to supply a paper web. A guide element adapted to guide sequentially several cores along a predetermined path between a station for feeding the cores and a winding station in which a predetermined amount of the web is wound on each core. A winding element adapted to wind the paper web on the cores in the winding station. The guide element includes a guide with a curved end section that ends in the winding station and in cooperation with the winding element, delimits a channel crossed by each core before reaching the winding station.
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公开(公告)号：US11691836B2
公开(公告)日：2023-07-04
申请号：US17255021
申请日：2019-05-29
Applicant: FUTURA S.P.A.
Inventor： Giovacchino Giurlani , Gabriele Betti , Manolo Tamagnini , Simone Parenti
CPC classification number: B65H18/145 , B65H19/2269 , B65H23/005 , B65H2408/235 , B65H2511/14 , B65H2513/10 , B65H2557/20 , B65H2701/1924
Abstract: Rewinder for producing paper logs, comprising a winding station with a first winding roller, a second winding roller and a third winding roller driven by corresponding electric motors, including a detection system capable to detect a succession of diameters of the log being formed in the winding station and a programmable electronic unit connected to the electric motors. The system compares the measured diameters with a succession of corresponding diameters of predetermined value and to calculate a sequence of differences between these values. The electronic unit determines a parameter (a) related to the trend over time of the values. The electronic unit changes the relative speed of the first and second roll depending on the value of the parameter.
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公开(公告)号：US11858161B2
公开(公告)日：2024-01-02
申请号：US17769869
申请日：2020-11-11
Applicant: FUTURA S.P.A.
Inventor： Gabriele Betti , Ciro Guarini
CPC classification number: B26D7/12 , B26D1/16 , B26D2210/11
Abstract: A cutting machine for the transversal cutting of paper material logs, including: a structure on which are moved the logs; a cutting unit including a blade; at least one sharpening unit with two grinding wheels; a positioning device for positioning the grinding wheels with respect to the blade. The positioning device includes: a primary carriage and two secondary carriages supported by the primary carriage; a sensor for detecting the radius of the blade and configured to stop the primary carriage when the grinding wheels are arranged with the respective axes at a given distance from the axis of the blade. In a second phase of positioning the grinding wheels, the secondary carriages are controlled so as to bring the abrasive side of the wheels into contact with the blade.
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公开(公告)号：US11691838B2
公开(公告)日：2023-07-04
申请号：US17255020
申请日：2019-05-30
Applicant: FUTURA S.P.A.
Inventor： Giovacchino Giurlani , Gabriele Betti , Manolo Tamagnini , Simone Parenti
CPC classification number: B65H23/005 , B65H18/145 , B65H18/16 , B65H19/2269 , B65H2301/5123 , B65H2511/13 , B65H2511/14 , B65H2553/40 , B65H2557/20
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.
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