Web tensioning device
    2.
    发明公开
    Web tensioning device 有权
    Bahnspannungsvorrichtung

    公开(公告)号:EP1253083A1

    公开(公告)日:2002-10-30

    申请号:EP02252251.0

    申请日:2002-03-27

    申请人: ITW Limited

    IPC分类号: B65B11/00 B65B25/24

    摘要: A device for tensioning web, such as a plastics web (21) dispensed from a shuttle (3) in a wrapping machine (1), is disclosed. The wrapping machine (1) usually includes an endless track (2) positioned about an object (5) to be wrapped and the shuttle (3) travels on the endless track (2), dispensing the web (21) as it goes. The rate at which web is dispensed varies as the shuttle (3) progresses around the track (2) and is dependent upon the shape of the track and the shape of the object to be wrapped. The web tensioning device (22) attempts to maintain a constant tension in the web (21) and includes a pair of rollers (23,24) covered with resilient material. The rollers (23,24) are urged together to form a nip (29) with the resilient covering of the rollers compressed in the nip. The web (21) is fed between the nip (29) of the rollers (23,24).

    摘要翻译: 公开了一种用于张紧卷筒纸的装置,例如在包装机(1)中从梭子(3)分配的塑料网(21)。 包装机(1)通常包括围绕要包装的物体(5)定位的环形轨道(2),并且梭子(3)在环形轨道(2)上行进,在卷筒纸(21)进行时分配。 卷材的分配速率随着梭子(3)围绕轨道(2)前进而变化,并且取决于轨道的形状和被包裹物体的形状。 幅材张紧装置(22)试图在幅材(21)中保持恒定的张力并且包括用弹性材料覆盖的一对辊(23,24)。 辊(23,24)被一起推动以形成辊隙(29),辊的弹性覆盖物在辊隙中压缩。 腹板(21)被供给在辊(23,24)的辊隙(29)之间。