公开(公告)号：US20230265588A1

公开(公告)日：2023-08-24

申请号：US18040229

申请日：2021-08-03

Applicant: GDM S.P.A.

Inventor： Paolo CARUANA ,  Francesco Giardini ,  Matteo PIANTONI ,  Marco ROSANI ,  Alessandro ZAVALLONI

IPC: D04H1/56 ,  D04H1/4291 ,  D04H1/70 ,  D04H1/407 ,  D01D5/098 ,  A24C5/46

CPC classification number: D04H1/565 ,  D04H1/4291 ,  D04H1/70 ,  D04H1/407 ,  D01D5/0985 ,  A24C5/465

Abstract: A method for making a composite web comprises the steps of



melt blowing a first flow of thermoplastic material including said first thermoplastic material towards at least one collecting suction surface moving in a feed direction;
dispensing a flow of particulate material including a particulate material towards the collecting suction surface in such a way as to intercept the first flow of thermoplastic material in an intercept zone; the first flow of thermoplastic material and the flow of particulate material intercept each other in the intercept zone at an intercept angle of between 1 and 90 sexagesimal degrees, preferably between 15 and 40 sexagesimal degrees.

公开(公告)号：US20230000692A1

公开(公告)日：2023-01-05

申请号：US17852773

申请日：2022-06-29

Applicant: GDM S.p.A.

Inventor： Matteo PIANTONI ,  Alessandro ZAVALLONI

IPC: A61F13/15 ,  A61F13/512

Abstract: A composite web including a first continuous web having a first face and a second face; the first web includes a molded portion having at least one protrusion, at least partly delimited by a base portion, on the first face; the composite web includes a segment of a second continuous web joined to the second face of the first web at least at the base portion.

公开(公告)号：US20220411204A1

公开(公告)日：2022-12-29

申请号：US17809209

申请日：2022-06-27

Applicant: GDM S.p.A

Inventor： Matteo PIANTONI ,  Alessandro ZAVALLONI ,  Alessandro SACCOMANI

IPC: B65G47/84 ,  A61F13/15 ,  B65G47/252

Abstract: A method and apparatus for depositing discrete elements on a support element. The discrete elements may be separated from each other or joined to form a continuous web. The discrete elements are fed into a pick-up station defined at a rotor which includes circumferentially adjacent pick-up members. Each discrete element is associated with a respective pick-up member having a first orientation with respect to a respective second axis of rotation. Each pick-up member is moved along the rotation direction towards a release position downstream with an at least partially accelerated or decelerated motion. Each pick-up member is rotated about the respective second axis of rotation until it takes, at the release position, a second orientation. Each discrete element is released on a support element at the release position. Each pick-up member is subsequently moved towards the pick-up station with an at least partially decelerated or accelerated motion.

公开(公告)号：US20210171310A1

公开(公告)日：2021-06-10

申请号：US17052358

申请日：2019-05-07

Applicant: GDM S.p.A.

Inventor： Aldo FUSAR POLI ,  Marco ROSANI ,  Matteo PIANTONI

IPC: B65H37/06 ,  B65H20/06

Abstract: A folding apparatus for a continuous web for production of absorbent hygiene articles and intended to be folded into a “V” or “U” shape in first and second longitudinal portions along a folding line parallel to a feeding line. A folding section includes a contact unit extending along the feeding line and defining the folding line. First and second guides are positioned on opposite sides of the contact unit and respectively have first and second sliding surfaces. The first and second sliding surfaces extend in a helical fashion along the feeding line, each having a respective infeed section, where the web is not folded, and a respective outfeed section, positioned downstream of the respective infeed section according to a web feeding direction, where the web is folded in two and has the first portion and the second portion set at an angle to each other.

公开(公告)号：US20210145652A1

公开(公告)日：2021-05-20

申请号：US16491999

申请日：2018-03-19

Applicant: GDM S.p.A.

Inventor： Matteo PIANTONI ,  Valerio SOLI ,  Marco ROSANI ,  Federico TOSCANI ,  Giuseppe POLI

IPC: A61F13/15 ,  A61F13/532

Abstract: A method for forming an absorbent pad including a first layer, a second layer and an absorbent material interposed between the first and the second layer and arranged according to a spreading pattern M1 having at least one channel which is free of absorbent material, includes a step of feeding a first web, intended to form the first layer of the pad; a step of feeding a second web, intended to form the second layer of the pad; a step of spreading the absorbent material on the first web according to the spreading pattern M1; a step of spreading an adhesive on the first web according to a gluing pattern; a step of welding the first web and the second web according to a welding pattern M3 including at least one welding zone at the channel on the pad.

公开(公告)号：US20210122603A1

公开(公告)日：2021-04-29

申请号：US17078855

申请日：2020-10-23

Applicant: GDM S.p.A.

Inventor： Aldo FUSAR POLI ,  Marco ROSANI ,  Matteo PIANTONI

IPC: B65H45/22 ,  B65H23/02 ,  B65H23/032

Abstract: A folding apparatus for a continuous web being fed in a plant for the production of hygienic absorbent articles and intended to be folded into a “V” or “U” shape in a first and in a second longitudinal portion according to a longitudinal folding line parallel to a feeding line of the continuous web comprises a folding section including a first and a second power-driven, movable suction belt and an adjusting system for adjusting a relative position of the longitudinal edges of the continuous web once it has been folded; the adjusting system is configured to adjust the position of the first belt and/or of the second belt depending on at least a first information sent by the first sensor to the computerised control unit.

公开(公告)号：US20210101762A1

公开(公告)日：2021-04-08

申请号：US15733462

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 ,  B65H29/24 ,  B65H35/08

Abstract: A feeding unit to feed a component in an automatic manufacturing machine, which has at least one holding head designed to receive and hold the component; a conveyor to cyclically move the holding head along an application path; and a rotation station arranged along the feeding path and in which the holding head rotates relative to the equipment and around a rotation axis to vary the orientation of the component. The conveyor has a closed curve guide arranged in a fixed position along the application path; and an equipment supporting the holding head and provided with at least one slide coupled to the guide so as to freely slide along the guide. An actuation system controls rotation of the holding head around the first rotation axis and has a cam and a cam follower roller, which can be coupled to the cam and mechanically connected to the holding head.

公开(公告)号：US10934123B2

公开(公告)日：2021-03-02

申请号：US15767180

申请日：2016-10-20

Applicant: GDM S.p.A.

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

IPC: B65H35/08 ,  B65H29/24 ,  B65H39/14

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.

公开(公告)号：US10166698B2

公开(公告)日：2019-01-01

申请号：US15556796

申请日：2016-03-15

Applicant: GDM S.p.A.

Inventor： Matteo Piantoni ,  Valerio Soli

IPC: B29B7/60 ,  A61F13/15 ,  B02C18/14 ,  B02C18/22 ,  B29B7/34 ,  B29C41/04 ,  B29B7/40 ,  D21B1/06 ,  B29K105/12 ,  B29L31/48

Abstract: A crushing mill for crushing fibrous material for a unit for forming absorbent cores in a machine which makes absorbent sanitary articles, including a casing having an infeed opening and an outfeed opening for the fibrous material, a rotor rotatable about its axis of rotation and housed in the casing at an intermediate position between the infeed opening and the outfeed opening. Also provided is an auxiliary opening operatively interposed between the infeed opening and the outfeed opening, with reference to a direction of rotation of the rotor, and adapted to allow feeding a particulate absorbent material into an intermediate zone between the infeed opening and the outfeed opening.

公开(公告)号：US20170326005A1

公开(公告)日：2017-11-16

申请号：US15517815

申请日：2015-09-21

Applicant: GDM S.p.A.

Inventor： Matteo PIANTONI ,  Valerio SOLI

IPC: A61F13/15

CPC classification number: A61F13/15723 ,  A61F13/15577 ,  A61F2013/15821

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 downstream of the front end portion in a feed direction and each second stretch has the front end portion downstream of the rear end portion.