公开(公告)号：US10441477B2

公开(公告)日：2019-10-15

申请号：US15112939

申请日：2015-02-16

Applicant: GDM S.p.A.

Inventor： Matteo Piantoni ,  Valerio Soli

IPC: A61F13/15

Abstract: A process for forming an absorbent sanitary article of the type including a pad having a direction of main extension, including a step of at least one absorbent core of the absorbent article by layering a corresponding composite web, a step of preparing a succession of hollows in the composite web obtained by removing for each hollow a corresponding portion of the composite web and a step of applying the portions removed on the composite web.

公开(公告)号：US20180147749A1

公开(公告)日：2018-05-31

申请号：US15570398

申请日：2016-05-03

Applicant: GDM S.p.A.

Inventor： Matteo PIANTONI ,  Valerio SOLI

IPC: B29C33/38 ,  A61F13/15 ,  B22F5/00 ,  B33Y10/00 ,  B33Y80/00

CPC classification number: B29C33/3842 ,  A61F13/15626 ,  A61F13/15658 ,  B22F3/1055 ,  B22F5/007 ,  B33Y10/00 ,  B33Y80/00

Abstract: A pocket, to form particulate material as absorbent for hygienic products, includes: a substrate shaped to the absorbent padding; a grid-shaped support, couplable to support the substrate during suction of the particulate material through the substrate and includes a curved external face, an internal face, a pair of greater side faces and a pair of lesser side faces that are opposite one another, openings enable gas to flow from the external face to the internal face during suction. A method for making the pocket includes making at least one of the external openings of a different shape and/or dimension from one of the internal openings, and making the external walls and the internal walls by layer additive manufacturing.

公开(公告)号：US20180043576A1

公开(公告)日：2018-02-15

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 ,  B29B7/34 ,  B29C41/04 ,  B02C18/22 ,  B02C18/14

CPC classification number: B29B7/60 ,  A61F13/15617 ,  A61F13/15658 ,  A61F13/15707 ,  A61F13/15764 ,  B02C18/14 ,  B02C18/2225 ,  B29B7/34 ,  B29B7/401 ,  B29C41/04 ,  B29K2105/12 ,  B29L2031/4878 ,  D21B1/068

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：US20160354256A1

公开(公告)日：2016-12-08

申请号：US15112932

申请日：2015-02-09

Applicant: GDM S.P.A.

Inventor： Matteo PIANTONI ,  Valerio SOLI

IPC: A61F13/15 ,  B05C19/06 ,  B05C19/04 ,  B05B7/14 ,  B05B12/08

CPC classification number: A61F13/15634 ,  A61F13/15577 ,  A61F13/15617 ,  A61F13/15658 ,  A61F13/15747 ,  B05B7/1445 ,  B05B12/081 ,  B05C19/04 ,  B05C19/06

Abstract: An apparatus for distributing particulate material on a conveyor movable along a respective operating direction includes: a tank containing particulate material and equipped with feed means for feeding the particulate material; and distribution means located downstream of the tank to receive the particulate material and the particulate material on the conveyor. The distribution means include a diffuser element and a vibrating device to shake the diffuser element. The diffuser element extends with its sliding plane along its axis between an infeed portion to receive a preset flow quantity “Q” of particulate material, and an outfeed portion. The diffuser element includes a transversal partition at a predetermined distance from the sliding plane to form a neck which acts in combination with a vibration imparted by the vibrating device to distribute the particulate material along a predetermined width of the outfeed portion.

Abstract translation: 一种用于在沿着相应的操作方向移动的输送器上分配颗粒材料的装置包括：容纳颗粒材料并装有用于进料颗粒材料的进料装置的罐; 以及位于罐的下游的分配装置，以在输送机上接收颗粒材料和颗粒材料。 分配装置包括漫射元件和振动器件以摇动扩散器元件。 扩散器元件沿其轴线在其进给部分之间以其滑动平面延伸，以接收预定的颗粒材料的流量“Q”和出料部分。 扩散器元件包括与滑动平面预定距离的横向分隔件，以形成颈部，该颈部与由振动装置施加的振动相结合，以沿着给出部分的预定宽度分布颗粒材料。

公开(公告)号：US20160008180A1

公开(公告)日：2016-01-14

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.

Abstract translation: 一种制造用于尿布的吸收垫的单元，包括形成所述吸收垫的成形鼓，并且在其外周表面上包括一个或多个抽吸凹部; 至少一个用于供给所述吸收材料并且周向地面向所述滚筒的外围表面的一部分的罩; 以及通向罩的导管，其可以间歇地进给超吸收材料的预定电荷; 供给管道被配置成使得供给到罩中的超吸收材料的流动扩展直到达到与吸收垫的至少一个离散层的纵向延伸相对应的程度。

公开(公告)号：US20250161119A1

公开(公告)日：2025-05-22

申请号：US18955715

申请日：2024-11-21

Applicant: GDM S.p.A.

Inventor： Alessandro Zavalloni ,  Federico Toscani ,  Eros Rossi

IPC: A61F13/15 ,  A61F13/514

Abstract: A method for making an absorbent sanitary article (10) comprises: applying a plurality of adhesive portions (16, 17) on a backsheet web (114), each adhesive portion (16, 17) comprising a removable covering sheet (4) and a glue layer (5) overlaid on said covering sheet (4); subsequently, forming a multilayer web (30) of absorbent sanitary article (10) comprising said backsheet web (114), a topsheet web (112), a plurality of absorbent cores (18) interposed between said topsheet web (112) and said backsheet web (114), and said plurality of adhesive portions (16, 17) applied to said backsheet web (114), wherein said adhesive portions (16, 17) are arranged on said backsheet web (114) on opposite sides with respect to said plurality of absorbent cores (18).

公开(公告)号：US20240425315A1

公开(公告)日：2024-12-26

申请号：US18750713

申请日：2024-06-21

Applicant: GDM S.P.A.

Inventor： Alessandro ZAVALLONI ,  Agostino AIOLFI

IPC: B65H19/18 ,  A61F13/15 ,  B65H19/20

Abstract: A splicing device includes a head portion provided with a first slot, configured for the passage of a first material, and with a second slot, configured for the passage of a second material; the splicing device includes a first retaining member for holding an edge of the first material, and a second retaining member for holding an edge of the second material, each having a respective retaining surface, configured to vary its orientation from a first configuration in which it is oriented towards the head portion of the splicing device to receive a respective edge, to a second configuration in which the retaining surface is oriented in such a way as to position the respective edge of one of the two between the first material and the second material so it confronts the other, and vice versa.

公开(公告)号：US12168587B2

公开(公告)日：2024-12-17

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：US20240374437A1

公开(公告)日：2024-11-14

申请号：US18657389

申请日：2024-05-07

Applicant: GDM S.P.A.

Inventor： Aldo FUSAR POLI ,  Gino LISSANI ,  Matteo PIANTONI ,  Alessandro SACCOMANI ,  Alessandro ZAVALLONI

IPC: A61F13/15

Abstract: A method for making absorbent sanitary articles, each comprising a first discrete element and a second discrete element, comprises: feeding a succession of first discrete elements along a first feed path; feeding a succession of second discrete elements along a second feed path; applying each first discrete element of the succession of first discrete elements on a support web having a longitudinal axis and movable in a feed direction along a third feed path, the first discrete elements being applied on the support web at a first applicator station; applying each second discrete element of the succession of second discrete elements on the support web at a second applicator station located downstream of the first applicator station in the feed direction of the support web; the method comprises adjusting a length of the third feed path between the first applicator station and the second applicator station, so that each second discrete element is applied on the support web at a predefined position relative to a respective first discrete element.

公开(公告)号：US20240366435A1

公开(公告)日：2024-11-07

申请号：US18655737

申请日：2024-05-06

Applicant: GDM S.P.A.

Inventor： Alessandro SACCOMANI ,  Alessandro ZAVALLONI

IPC: A61F13/15 ,  B65G47/244 ,  B65G47/32 ,  B65G47/52 ,  B65G47/84

Abstract: A method for processing a discrete segment of material for absorbent articles comprises picking up the segment from a first succession of segments disposed at a first spacing from each other; releasing the segment to define a second succession of segments disposed at a second spacing from each other; rotating the segment carried out between the step of picking up and the step of releasing and which involves disposing the segment from a first configuration, corresponding to the configuration of the segment of the first succession, to a second configuration, rotated relative to the first configuration and corresponding to the configuration of the segment of the second succession; between the step of picking up and the step of releasing, accelerating the segment and decelerating the segment; the rotating the segment being carried out simultaneously with at least one between the accelerating and the decelerating.