METHOD AND APPARATUS FOR MEASURING TENSION IN A MOVING WEB
    3.
    发明公开
    METHOD AND APPARATUS FOR MEASURING TENSION IN A MOVING WEB 有权
    方法和设备测量张力在跑动材料网

    公开(公告)号:EP1636125A1

    公开(公告)日:2006-03-22

    申请号:EP04755073.6

    申请日:2004-06-11

    IPC分类号: B65H23/04

    摘要: An apparatus and method for the non-contact measurement of tension in a moving web material (11) are provided herein. In one embodiment the apparatus includes a non-contacting tension-sensing element, such as an airfoil (500), disposed transverse to the machine direction of the web material, at least one sensor (400) capable of detecting a reaction of the non-contacting tension-sensing element to changes in the tension of the moving web material and a data processing system capable (500) of determining a web tension analog value that is proportional to the tension of the web material (11).

    METHOD AND APPARATUS FOR UNWINDING A ROLL OF WEB MATERIAL
    4.
    发明授权
    METHOD AND APPARATUS FOR UNWINDING A ROLL OF WEB MATERIAL 有权
    方法和设备用于处理ROLL BANHMATERIALS

    公开(公告)号:EP1633666B1

    公开(公告)日:2011-01-19

    申请号:EP04755074.4

    申请日:2004-06-11

    IPC分类号: B65H23/04

    摘要: An apparatus and method for unwinding a roll (10) of web material (11) are disclosed herein. The web material (12) is unwound from the roll (10) and the machine direction of motion of the web is altered without creating a problematic span of web material. A value analogous to the tension of the web material is determined. The speed of the web is adjusted according to the analog of the tension of the web. The apparatus can comprise an unwind stand (100) to rotate the roll, and a means for altering the direction of travel of the web material. The apparatus further comprises a means to determine an analog of the web material tension and a means of controlling the speed of the web according to the analog of the web tension. The web material is routed to a downstream process.

    METHOD AND APPARATUS FOR UNWINDING A ROLL OF WEB MATERIAL
    5.
    发明公开
    METHOD AND APPARATUS FOR UNWINDING A ROLL OF WEB MATERIAL 有权
    方法和设备用于处理ROLL BANHMATERIALS

    公开(公告)号:EP1633666A1

    公开(公告)日:2006-03-15

    申请号:EP04755074.4

    申请日:2004-06-11

    IPC分类号: B65H23/04

    摘要: An apparatus and method for unwinding a roll (10) of web material (11) are disclosed herein. The web material (12) is unwound from the roll (10) and the machine direction of motion of the web is altered without creating a problematic span of web material. A value analogous to the tension of the web material is determined. The speed of the web is adjusted according to the analog of the tension of the web. The apparatus can comprise an unwind stand (100) to rotate the roll, and a means for altering the direction of travel of the web material. The apparatus further comprises a means to determine an analog of the web material tension and a means of controlling the speed of the web according to the analog of the web tension. The web material is routed to a downstream process.