公开(公告)号：US20220125647A1

公开(公告)日：2022-04-28

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: A61F13/15 ,  B29C65/08 ,  B29C65/78 ,  B29C65/00

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：US20210228422A1

公开(公告)日：2021-07-29

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

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 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.