In-line web separator

B - Operations – Transporting – 65 – H

Patent

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Details

B65H 23/32 (2006.01) B65H 35/02 (2006.01)

Patent

CA 2336304

The present invention is directed to a method and apparatus for in-line separation of a plurality of laminated webs (10a-10i) of polymer film and non- woven web to compensate for the increased width due to stretching in the cross- machine direction (CD). Due to the stretching in the cross-machine direction, typically by interdigital rolling or tentering, the width of the individual webs (10a-10i) is increased. To compensate for the increase in width, the apparatus and method of the present invention is employed to provide for in- line separation of the narrow webs (10a-10i). The apparatus of the present invention may allow for simplicity in threading the device, due to the ability to automatically thread individual turning bars (16a-16i and 18a-18i) by moving the turning bars across the undeflected path of the web (10a-10i).

La présente invention se rapporte à un procédé et à un appareil permettant la séparation en ligne d'une pluralité de bandes laminées (10a-10i) de film polymère et de bande non tissée dans le but de compenser l'accroissement de largeur dû à l'étirement dans le sens travers (CD) de la machine. En raison de cet étirement dans le sens travers, la largeur des bandes individuelles (10a-10i) est accrue, généralement par laminage interdigital ou ramage. De manière à compenser l'accroissement en largeur, l'appareil et le procédé de la présente invention permettent une séparation en ligne des bandes étroites (10a-10i). L'appareil de la présente invention peut simplifier l'enfilage d'un dispositif, grâce à la possibilité d'enfiler automatiquement des barres de renversement individuelles (16a-16i et 18a-18i) en déplaçant ces barres de renversement dans le chemin non dévié de la bande (10a-10i).

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