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：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.

公开(公告)号：US20170304125A1

公开(公告)日：2017-10-26

申请号：US15518153

申请日：2015-10-22

Applicant: GDM S.p.A.

Inventor： Matteo PIANTONI ,  Valerio SOLI

IPC: A61F13/15 ,  A61F13/49 ,  A61F13/56

CPC classification number: A61F13/15756 ,  A61F13/15577 ,  A61F13/15699 ,  A61F13/49009 ,  A61F13/56

Abstract: A method for making sanitary articles, includes: feeding along a longitudinal direction of movement a first web of material defining a main body of the article; feeding a pair of longitudinal strips; dividing each strip into a succession of trapezoidal pieces adjacent each other and each having a long base and a short base so the pieces of each strip can be divided alternately into first pieces having a first orientation and second pieces having a second orientation opposite to the first orientation; spacing the pieces of each strip from each other; rotating the first or second pieces of each strip by 180° in plane to give the pieces of the first strip the first orientation and the pieces of the second strip the second orientation; applying each piece on a first face so the long base protrudes laterally from the edge of the first web.

公开(公告)号：US20170189242A1

公开(公告)日：2017-07-06

申请号：US15305054

申请日：2015-04-14

Applicant: GDM S.p.A. ,  UNIVERSITA' DEGLI STUDI DI BERGAMO

Inventor： Matteo PIANTONI ,  Valerio SOLI ,  Davide RUSSO ,  Paolo CARRARA

IPC: A61F13/15 ,  B23K26/36 ,  B23K26/38 ,  B23K26/03 ,  B23K26/08

CPC classification number: A61F13/15723 ,  A61F13/15764 ,  B23K26/03 ,  B23K26/0823 ,  B23K26/0846 ,  B23K26/36 ,  B23K26/38 ,  B23K2101/22

Abstract: A device for cutting a web of fibrous material including movement means for moving a web of fibrous material to be cut, defining a feed surface for the web and having at least one first cutting zone, at least one laser source configured to generate a laser beam extending along its operating direction towards the first cutting zone to make, on the web, at least one incision extending along a predetermined cutting line, where a portion of the laser beam passes through the web of fibrous material at the first cutting zone. The device also includes recovery means for recovering the portion of the laser beam and at least partly located along the operating direction, at the first cutting zone, in such a way as to intercept the portion of the laser beam and direct it towards a second cutting zone to make a further incision or cut.

公开(公告)号：US20170080610A1

公开(公告)日：2017-03-23

申请号：US15312281

申请日：2015-05-13

Applicant: GDM S.p.A.

Inventor： Matteo PIANTONI ,  Valerio SOLI

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

CPC classification number: B29C41/36 ,  A61F13/15626 ,  A61F13/15658 ,  A61F13/15804 ,  B29C41/02 ,  B29C41/38 ,  B29K2995/0068 ,  B29L2031/4878

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 are connected to the same distribution means.

公开(公告)号：US20170035618A1

公开(公告)日：2017-02-09

申请号：US15304794

申请日：2015-04-14

Applicant: GDM S.p.A. ,  UNIVERSITA' DEGLI STUDI DI BERGAMO

Inventor： Matteo PIANTONI ,  Valerio SOLI ,  Davide RUSSO ,  Paolo CARRARA

IPC: A61F13/15 ,  B23K26/03 ,  B23K26/08

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.

Abstract translation: 用于切割材料幅材的装置包括用于移动要切割的材料的网状物的移动装置，其限定用于幅材的进给路径，所述进给路径至少部分地围绕中心轴线可旋转并且配备有围绕中心轴线安装的至少一个输送器， 配备有激光源的至少一个切割头和配置成将激光束引向切割区域的光学系统，其中切割头的光学系统包括位于传送器内部的至少一个引导构件，以将激光束引导离开 中心轴向切割区。

公开(公告)号：US20160324695A1

公开(公告)日：2016-11-10

申请号：US15109686

申请日：2015-01-22

Applicant: GDM S.p.A.

Inventor： Matteo PIANTONI ,  Valerio SOLI

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

CPC classification number: A61F13/15739 ,  A61F13/15747 ,  A61F2013/15869 ,  B29C65/086 ,  B29C65/7894 ,  B29C66/1122 ,  B29C66/436 ,  B29C66/7294 ,  B29C66/8161 ,  B29C66/83511 ,  B29L2031/4871 ,  B29L2031/4878 ,  B65B25/145 ,  B65B51/16 ,  B65B51/225

Abstract: An ultrasonic sealing system in a machine for making composite webs in the production of absorbent sanitary articles includes a contact roller having an axis of rotation and including a central portion and a peripheral portion which is supported by the central portion and includes an outer surface forming the outer surface of the contact roller itself. The contact roller includes a sealing pattern on the outer surface of the peripheral portion and also includes springs acting between the central portion and the peripheral portion, which is supported by the peripheral portion by means of the springs.

Abstract translation: 在生产吸收性卫生用品的制造复合纤维网的机器中的超声波密封系统包括具有旋转轴线的接触辊，并且包括中心部分和由中心部分支撑的周边部分，并且包括形成 接触辊本身的外表面。 接触罗拉在周边部分的外表面上包括密封图案，并且还包括作用在中心部分和周边部分之间的弹簧，弹簧通过弹簧被周边部分支撑。

公开(公告)号：US20160051414A1

公开(公告)日：2016-02-25

申请号：US14784508

申请日：2014-04-08

Applicant: GDM S.p.A.

Inventor： Matteo PIANTONI ,  Valerio SOLI

IPC: A61F13/15 ,  A61F13/534

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.

Abstract translation: 一种用于制造吸收性卫生制品的机器，包括具有至少一个离散层的超吸收性聚合物材料的吸收垫，包括用于形成和应用一系列吸收垫的单元，其包括用于形成垫的滚筒， 超吸收聚合物材料到鼓和间歇阀，沿着管道的延伸安装并由致动器驱动。 设备检测超吸收聚合物材料并将信号发送到连接到装置的控制和驱动单元，指示已经检测到超吸收聚合物材料。 当信号与参考信号的偏差超过定义的阈值时，控制和驱动单元被配置为驱动致动器以使阀与滚筒的旋转相位相位。