Method for manufacturing worn article

    公开(公告)号:US11648154B2

    公开(公告)日:2023-05-16

    申请号:US17613167

    申请日:2020-05-15

    Inventor: Takashi Arima

    Abstract: A method including: a step of carrying first and second continuous webs in a predetermined carrying direction; a first slitting step of slitting the first continuous web along a virtual first cut-off line extending the carrying direction, thereby dividing the first continuous web into a wider first divided web and a narrower second divided web; a step of sandwiching an around-torso elastic member extending in a girth direction between the wider first divided web and the second continuous web; a welding step of welding together the first divided web, the second continuous web and the around-torso elastic member intermittently in the carrying direction, thereby producing a layered sheet; and a bonding step of sandwiching an around-leg elastic member meandering relative to the carrying direction between the layered sheet and the narrower second divided web, and attaching the around-leg elastic member thereto by an adhesive, thereby producing a stretchable continuous sheet.

    Apparatus and method for manufacturing absorbent article

    公开(公告)号:US12029630B2

    公开(公告)日:2024-07-09

    申请号:US17413683

    申请日:2019-11-12

    CPC classification number: A61F13/15764

    Abstract: The present apparatus for manufacturing an article includes a velocity-changing device that changes velocity so that circumferential velocity of a holding pad is continuously decelerated or continuously accelerated during a period from a first start time, at which hand-over of a workpiece of a first size at an upstream position as a hand-over position on a circling path is started, to a second start time, at which hand-over of a workpiece of a second size at a downstream position as the hand-over position downstream of the upstream position on the circling path is started.

    Web welding system and welding method

    公开(公告)号:US11772332B2

    公开(公告)日:2023-10-03

    申请号:US17609649

    申请日:2020-05-12

    Inventor: Takashi Arima

    CPC classification number: B29C65/08 B29C66/41 B29C66/73921 B29L2031/4878

    Abstract: The present welding system includes: a transport device that transports a work in a state where a plurality of webs are overlaid on each other; an anvil roller that includes an anvil which intermittently makes contact with the first surface of the work being transported; an ultrasonic horn that is opposite the second surface of the work and that cooperates with the anvil to apply vibration energy to the work so as to intermittently weld the webs; a speed changing device that lowers the transport speed of the work supplied between the horn and the anvil when the welding is performed; and a pressing device that presses the first surface of the work to the anvil when the welding is performed.

    Apparatus and method for manufacturing absorptive article

    公开(公告)号:US10987254B2

    公开(公告)日:2021-04-27

    申请号:US16763048

    申请日:2018-11-16

    Abstract: An apparatus and method for manufacturing an absorptive article are capable of suppressing the occurrence of wrinkles in a constituent element of the absorbing article when transferring the constituent element to a downstream conveying device. A main suction pad that moves along a cylindrical or conical first virtual path surface receives a constituent element from an upstream conveying device, changes the orientation by 90° and conveys the constituent element to a second position. Sub-suction surfaces of the first and second sub-suction pads move around a second reference center line along a cylindrical or conical second virtual path surface centered on the second reference center line, while being aligned with each other with a space therebetween, suction end portions of the constituent element at the second position, and transfer the constituent element to the downstream conveying device at a third position.

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