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公开(公告)号：US20210007901A1
公开(公告)日：2021-01-14
申请号：US17037205
申请日：2020-09-29
Applicant: GDM S.P.A. , UNIVERSITA' DEGLI STUDI DI BERGAMO
Inventor： Matteo PIANTONI , Valerio SOLI , Davide RUSSO , Paolo CARRARA
IPC: A61F13/15 , B23K26/082 , B23K26/08 , B23K26/03
Abstract: A device for cutting a web of material comprises movement means for moving a web of material to be cut, defining a feed path for the web at least partly rotatable about a central axis and equipped with at least one conveyor mounted around the central axis, at least one cutting head equipped with a laser source and an optical system configured to direct the laser beam towards a cutting zone, where the optical system of the cutting head comprises at least one directing member located inside the conveyor to direct the laser beam away from the central axis towards the cutting zone.
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公开(公告)号：US20200229986A1
公开(公告)日：2020-07-23
申请号：US16645257
申请日：2018-09-18
Applicant: GDM S.p.A.
Inventor： Federico TORDINI , Matteo PIANTONI
IPC: A61F13/15
Abstract: A device for applying segments of absorbent articles includes a cutting station for cutting a continuous web into segments and an applicator station for applying each segment on a respective absorbent article. A plurality of carrier units, each includes a pad for retaining and transferring a segment from the cutting station to the applicator station. The pad fully rotates about a main axis to transfer the segment from the cutting station to the applicator station and return to the cutting station and, from the cutting station to the applicator station, rotates at least 90° about its axis of rotation to orient the segment transverse to the feed direction of the absorbent article. A first movement member moves one or more first carrier units about the main axis and a second movement member moves one or more second carrier units separately from the first carrier units about the main axis.
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93.发明授权公开(公告)号：US10478348B2
公开(公告)日：2019-11-19
申请号：US16084274
申请日：2017-03-17
Applicant: GDM S.P.A.
Inventor： Matteo Piantoni , Valerio Soli , Marco Rosani , Federico Tordini , Massimo Pallavera
Abstract: A feeding unit for feeding a component of a hygiene absorbent article; the feeding unit has: at least one sucking-holding head, which is designed to receive and hold the component; a conveyor to cyclically move the holding head along an annular application path; an input station in which the holding head receives a corresponding component which is connected—without gaps—to a continuous web; a cutting station provided with a cutting device, which cuts the continuous web crosswise; and an output station in which the holding head releases the component; the conveyor has: an annular guide; a slide which supports the holding head and is coupled to the guide so as to freely slide along the guide itself; and a linear electric motor, which has a stator, which is arranged in a fixed position along the guide and a mobile slider which is electro-magnetically coupled to the stator so as to receive, from the stator, a driving force and is rigidly connected to the slide.
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公开(公告)号：US10470938B2
公开(公告)日：2019-11-12
申请号：US15517815
申请日：2015-09-21
Applicant: GDM S.p.A.
Inventor： Matteo Piantoni , Valerio Soli
IPC: A61F13/15
Abstract: A process for forming an absorbent sanitary article includes feeding a first web including first and second stretches each having front and rear end portions; feeding a second web for forming a first side panel of the article; feeding a third web for forming a second side panel of the article; cutting the second web into a succession of first and second pieces defining the first side panel of the article; cutting the third web in a succession of third and fourth pieces, defining the second side panel of the article; applying the first through fourth pieces to the first web; the first and second stretches being provided in the first web so each first stretch has the rear end portion upstream of the front end portion in a feed direction and each second stretch has the front end portion upstream of the rear end portion.
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95.发明授权公开(公告)号：US10213346B2
公开(公告)日：2019-02-26
申请号：US15569048
申请日：2016-05-02
Applicant: GDM S.p.A.
Inventor： Matteo Piantoni , Valerio Soli
Abstract: A unit for forming absorbent sanitary articles including a drum rotatable about its axis of rotation and having a circumferential peripheral surface movable along a feed direction, first feeding means for feeding a succession of pairs of panels of material facing the circumferential peripheral surface and configured to position each pair in such a way that the respective two panels are facing each other and transversely aligned with the feed direction and second feeding means for feeding a continuous web of material suitable for defining at least part of the main body of an absorbent sanitary article, and configured to position the web on the circumferential peripheral surface of the drum in such a way that each panel projects partly sideways from the web. The unit comprises an ultrasonic sealing station located along the circumferential peripheral surface of the drum, in a zone located operatively downstream of the second feeding means, and configured to attach each panel of the pair to the web at at least one plurality of sealing points arranged in succession along the feed direction.
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Patent Agency Ranking
公开(公告)号：US10111785B2
公开(公告)日：2018-10-30
申请号：US15564754
申请日：2016-04-08
Applicant: GDM S.p.A.
Inventor： Matteo Piantoni , Valerio Soli
Abstract: Maker machine to manufacture hygiene absorbent articles and having: a feeding line which feeds a continuous strip of impermeable material, which is intended to define a succession of sheets of impermeable material; and at least one operating unit which feeds a corresponding component of the hygiene absorbent articles to the sheets of impermeable material carried by the feeding line by way of an application device; the application device has at least one sucking pick-up head and a conveyor provided with an annular guide which is arranged in fixed position along an application path, a slide which supports the sucking pick-up head and is coupled to the guide so as to freely slide along the guide, and a linear electric motor, which has a stator that is arranged in a fixed position along the guide and a mobile slider which is electro-magnetically coupled to the stator so as to receive, from the stator a driving force and is rigidly connected to the slide.
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公开(公告)号：US20180290855A1
公开(公告)日：2018-10-11
申请号：US15767180
申请日：2016-10-20
Applicant: GDM S.p.A.
Inventor： Matteo PIANTONI , Valerio SOLI , Marco ROSANI , Federico TORDINI
Abstract: A unit for applying first and second tabs, obtained from first and second webs, to a chassis web includes an applicator drum rotatable about an axis and including a main body. A plurality of carriers is movable between a lowered position close to the axis and a raised position away from the axis, each including a suction portion. A first carrier first suction and non-suction portions aligned along the axis. A second carrier includes second suction and non-suction portions aligned along the axis. The first suction portions alternate with the second non-suction portions and the first non-suction portions alternate with the second suction portions. A first system holds the first web on the applicator drum upstream of a cutting device. A second system holds the second web on the drum upstream of the cutting device.
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98.发明申请公开(公告)号：US20180200119A1
公开(公告)日：2018-07-19
申请号：US15918813
申请日：2018-03-12
Applicant: GDM S.p.A.
Inventor： Matteo PIANTONI , Valerio SOLI
CPC classification number: A61F13/15634 , A61F13/15577 , A61F13/15617 , A61F13/15658 , A61F13/15747 , B05B7/1445 , B05B12/081 , B05C19/04 , B05C19/06
Abstract: A machine for making sanitary articles including an impermeable outer layer and an absorbent pad superposed thereon, the machine including a feed line feeding the outer web and a unit forming the absorbent pad. The forming unit includes a first feeder feeding a first web along an operating direction, a second feeder feeding a second web, a coupling station coupling the first web to the second web, a dosing/depositing station located upstream of the coupling station where a distributed quantity of absorbent material is placed on the first web. The dosing/depositing station includes an apparatus for distributing particulate material with a tank containing particulate material, a feed mechanism feeding the material and a downstream distribution mechanism receiving the material to distribute the material on a drum or conveyor. The distribution mechanism includes a diffuser and a vibrating device to shake the diffuser.
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公开(公告)号：US09999550B2
公开(公告)日：2018-06-19
申请号：US14428528
申请日：2013-10-11
Applicant: GDM S.p.A.
Inventor： Matteo Piantoni , Alberto Perego
IPC: A61F13/15
CPC classification number: A61F13/15764 , A61F13/15674 , A61F13/15723
Abstract: The machine according to the invention, for making absorbent sanitary articles, comprises a device for forming inside the absorbent article a pad composed of a plurality of superposed layers of absorbent material, a transfer roller located downstream of the device and having a cylindrical lateral surface, and a wrapping unit which is located downstream of the transfer roller and by which the pad is placed between a first sheet of impermeable or permeable material and a second sheet of permeable material; the transfer roller transfers the internal pad from the forming device to the wrapping unit, the forming device also comprises, for each layer of absorbent material, a respective forming unit for cutting into lengths a continuous web of absorbent material fed into the selfsame unit and for transferring the lengths to the transfer roller; the lengths of material fed by each unit are mutually superposed on the lateral surface of the transfer roller so as to form the layers of the pad and the pad itself.
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公开(公告)号：US09913760B2
公开(公告)日：2018-03-13
申请号：US14772706
申请日：2014-04-08
Applicant: GDM S.p.A.
Inventor： Matteo Piantoni , Valerio Soli
IPC: A61F13/15
CPC classification number: A61F13/15626 , A61F13/15617 , A61F13/15764
Abstract: A unit for making absorbent pads for nappies including a forming drum by which the absorbent pad is formed and in turn including on its peripheral surface one or more suction recesses; at least one hood for feeding the absorbent material and peripherally facing at least part of the peripheral surface of the drum; and a duct which leads to the hood and which can intermittently feed predetermined charges of a superabsorbent material; the feeding duct is configured in such a way that the flow of superabsorbent material fed into the hood expands until reaching an extent corresponding to the longitudinal extension of the at least one discrete layer of the absorbent pad.
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