公开(公告)号：US11963853B2

公开(公告)日：2024-04-23

申请号：US17427858

申请日：2020-02-11

Applicant: GDM S.p.A.

Inventor： Andrea Duchini ,  Giacomo Noferini ,  Matteo Piantoni ,  Gabriele Resmini ,  Marco Rosani ,  Alessandro Saccomani ,  Maurizio Spatti

IPC: B29C65/08 ,  A61F13/15 ,  B29C65/00 ,  B29C65/78 ,  B29L31/48

CPC classification number: A61F13/15739 ,  B29C65/087 ,  B29C65/7847 ,  B29C65/7885 ,  B29C65/7894 ,  B29C66/0062 ,  B29C66/1122 ,  B29C66/431 ,  B29C66/81465 ,  B29C66/8226 ,  B29C66/8242 ,  B29C66/8322 ,  B29C66/8324 ,  B29C66/83517 ,  B29C66/8412 ,  A61F2013/15869 ,  B29C2793/009 ,  B29L2031/4878

Abstract: A rotary welding device which includes a rotary part rotating about its axis of rotation, one or more supporting elements for supporting a continuous strip, specifically a strip of nappies, supported by the rotary part, and a plurality of welding units, mounted on the rotary part, for welding the continuous strip; each welding unit is configured to pass from a non-operating position to an operating position and vice versa; each welding unit includes a respective welding tip and a respective anvil element which is movable relative to the welding tip; each welding unit includes respective first movement means configured to drive the anvil element in rotation relative to the welding tip from an initial position, where the anvil element is angularly spaced from the welding tip, to a final position, where the surface of the welding tip and the surface of the anvil element are parallel and aligned with each other along the same axis, and vice versa.

公开(公告)号：US11890172B2

公开(公告)日：2024-02-06

申请号：US17053486

申请日：2019-05-02

Applicant: GDM S.p.A.

Inventor： Giacomo Noferini ,  Federico Tordini ,  Matteo Piantoni

IPC: A61F13/15 ,  B65H35/08

CPC classification number: A61F13/15764 ,  A61F13/15723 ,  B65H35/08 ,  B65H2801/57

Abstract: A device for applying pieces to absorbent articles includes a supporting shaft rotating an axis; anvils rotating about the axis; a cutting unit operating with an anvil contact surface defining a cutting station for cutting a web into pieces; pads, each having a retaining surface for a piece, are moved about the axis for conveying a piece from the cutting station to a releasing station for release onto a substrate. Each pad rotates for varying the orientation from the cutting station, where the larger side of the pad is parallel to a feed of the web, to the releasing station, where the larger side of the pad is transversal to the feed of the receiving substrate, and vice versa. Each pad translates parallel to the pad axis, away from and towards the shaft axis. Each pad has an oscillating movement about its own axis.

公开(公告)号：US20220395406A1

公开(公告)日：2022-12-15

申请号：US17838468

申请日：2022-06-13

Applicant: GDM S.p.A.

Inventor： Matteo PIANTONI ,  Alessandro ZAVALLONI

IPC: A61F13/15 ,  A61F13/496 ,  A61F13/49 ,  A61F13/539

Abstract: A line for the production of diaper pants including at least one absorbent pad and a plurality of elastic bands, forming a pants-like structure; the production line includes a first forming unit for forming a composite web from which said absorbent pads are obtained, a second unit for forming elastic bands for forming said elastic bands and an assembly line for assembling the pads and the elastic bands to construct the diaper pants; the assembly line includes a plurality of processing units, each including a computerized command and control unit and a computerized high level control unit in communication with the computerized command and control units in the assembly line; the high level control unit is configured to impart to each computerized command and control unit at least one control signal for the respective processing unit as a function of the size of the diaper pants being produced in the production line.

公开(公告)号：US11376165B2

公开(公告)日：2022-07-05

申请号：US16563722

申请日：2019-09-06

Applicant: GDM S.p.A.

Inventor： Matteo Piantoni ,  Marco Rosani ,  Federico Toscani ,  Andrea Duchini ,  Mauro Pietralunga ,  Aldo Fusarpoli

IPC: A61F13/15

Abstract: A method for forming an absorbent article including a first absorbent core and a second absorbent core which are superposed on each other, includes feeding a first supporting web along a first feed path in a first feed direction; placing a succession of first absorbent cores on the first supporting web at a preset spacing; feeding a second supporting web along a second feed path in a second feed direction; placing a succession of second absorbent cores on the second supporting web at the preset spacing; coupling the first supporting web to the second supporting web such that each first absorbent core is coupled to a corresponding second absorbent core in a composite web including the succession of first absorbent cores and the succession of the second absorbent cores interposed between the first supporting web and the second supporting web.

公开(公告)号：US11124370B2

公开(公告)日：2021-09-21

申请号：US15733461

申请日：2019-01-31

Applicant: GDM S.p.A.

Inventor： Federico Tordini ,  Massimo Pallavera ,  Marco Rosani ,  Matteo Piantoni

IPC: B65G47/91 ,  A61F13/15 ,  B65G54/02 ,  B65H20/00 ,  B65H35/08

Abstract: A feeding unit to feed a component in an automatic manufacturing machine; has: at least one holding head designed to receive and hold the component; a closed curved guide arranged in a fixed position along an application path; an equipment supporting the holding head and provided with at least one slide coupled to the guide by a plurality of wheels; a linear electric motor, and a movable slider electro-magnetically coupled to the stator and is rigidly connected to the slide. The guide has, on the surface in contact with the wheels, a first transverse profile having a concavity or a convexity; the wheels have, on the surface in contact with the guide, a second transverse profile, which has a convexity or a concavity, and generates, with the first profile, a shape coupling between the guide and the wheels, which forbids a transverse movement of the slide relative to the guide.

公开(公告)号：US10821031B2

公开(公告)日：2020-11-03

申请号：US16077260

申请日：2017-01-30

Applicant: GDM S.p.A.

Inventor： Valerio Soli ,  Matteo Piantoni ,  Mauro Pietralunga ,  Federico Tordini ,  Marco Rosani

IPC: A61F13/15 ,  A61F13/49

Abstract: A method for making absorbent sanitary articles whereby each absorbent article is provided with at least one pair of side tabs. The method includes the steps of feeding a single continuous web with a longitudinal axis towards at least one cutting station where the continuous web is divided, by a succession of cuts transverse to the longitudinal axis, into a first and a second series of side tabs, each of which has an asymmetrical shape and separately applying each rotated side tab of the first series and each side tab of the second series along a continuous strip of a material for making the absorbent articles, in such a way that each rotated tab of the first series is juxtaposed with a respective tab of the second series to define a respective pair of side tabs.

公开(公告)号：US10751225B2

公开(公告)日：2020-08-25

申请号：US14784508

申请日：2014-04-08

Applicant: GDM S.p.A.

Inventor： Matteo Piantoni ,  Valerio Soli

IPC: A61F13/15 ,  A61F13/53 ,  A61F13/534 ,  G01N22/04

Abstract: A machine for making absorbent sanitary articles including an absorbent pad with at least one discrete layer of superabsorbent polymer material includes a unit for forming and applying a succession of absorbent pads, which includes a drum for forming the pad, a duct for feeding a charge of superabsorbent polymer material to the drum and intermittent valve mounted along a stretch of the duct and driven by an actuator. A device detects the superabsorbent polymer material and sends a signal to a control and drive unit connected to the device indicating that the superabsorbent polymer material has been detected. The control and drive unit is configured to drive the actuator to bring the valve into phase with the rotation of the drum when the deviation of the signal from a reference signal exceeds a defined threshold value.

公开(公告)号：US10683116B2

公开(公告)日：2020-06-16

申请号：US15557234

申请日：2016-03-18

Applicant: GDM S.P.A.

Inventor： Matteo Piantoni ,  Valerio Soli

IPC: B65B35/24 ,  B65G47/08 ,  B65H29/38 ,  B65B35/04 ,  B65B25/14 ,  B65B35/30

Abstract: Grouping unit and method to form groups of hygiene absorbent articles in a packaging machine; a conveyor which receives the single hygiene absorbent articles in an input station is provided, which feeds the hygiene absorbent articles along a grouping path, and releases the groups of hygiene absorbent articles in an output station; wherein the conveyor has a belt which is closed so as to form a ring, is wound around at least two pulleys, and supports a plurality of blades, which extend perpendicular to the belt and delimit, between one another, respective pockets, which are each designed to hold a corresponding hygiene absorbent article; an active braking device is provided, which is arranged at the input station so as to cooperate with a pocket arranged in the input station to slow down the movement with which a corresponding hygiene absorbent article enters the pocket.

公开(公告)号：US10384376B2

公开(公告)日：2019-08-20

申请号：US15312281

申请日：2015-05-13

Applicant: GDM S.p.A.

Inventor： Matteo Piantoni ,  Valerio Soli

IPC: B29C41/36 ,  A61F13/15 ,  B29C41/02 ,  B29C41/38 ,  B29L31/48

Abstract: A unit for making absorbent pads of absorbent articles including a drum for forming the absorbent pads and a hood for feeding a first and a second absorbent material to at least part of the peripheral surface of the drum; the hood has a chamber for mixing the first and the second absorbent materials and an opening for dispensing the first and the second absorbent materials facing at least part of the peripheral surface of the drum; the unit includes at least a first and a second duct for feeding the second absorbent material into the hood and means for distributing the second absorbent material both of the first feed duct and of the second feed duct; the first and the second ducts are connected to the same distribution means.

公开(公告)号：US10342709B2

公开(公告)日：2019-07-09

申请号：US14238574

申请日：2012-09-06

Applicant: Matteo Piantoni ,  Alberto Perego

Inventor： Matteo Piantoni ,  Alberto Perego

IPC: A61F13/15 ,  B65H35/04 ,  B65H39/14

Abstract: A machine for making absorbent sanitary articles includes a feed conveyor on which a continuous web of material for making the articles is advanced along a feed line in a first direction. A forming and application unit forms and applies by which at least one pair of accessory elements for each article and includes a device for feeding a continuous succession of accessory elements and a conveying unit. The conveying unit includes a conveyor roller for the continuous succession of accessory elements, and a separating device defined by a first and a second spacer roller which are substantially tangent to the conveyor roller at a first and a second pickup station, respectively. The first and the second spacer roller have retaining and alternate movement devices including respective pickup pads which are slidable along a second direction and which are driven by a respective linear electric motor.