System and method for lead edge and trail edge sheet constraint and curl sensing
    1.
    发明授权
    System and method for lead edge and trail edge sheet constraint and curl sensing 有权
    铅边缘和边缘片约束和卷曲检测的系统和方法

    公开(公告)号:US07548316B2

    公开(公告)日:2009-06-16

    申请号:US11737083

    申请日:2007-04-18

    IPC分类号: G01N21/25

    摘要: A lead edge and/or trail edge sheet curl sensing and constraint method and system. First and second light emitters and detector pairs are aligned such that the light beams from the first light emitter and second light emitter cross at the transport media sheet substrate path, which constitutes the path of a media sheet substrate with zero curl. A media sheet substrate with either positive or negative curl on the lead edge of the sheet substrate interrupts light beams from the first and second light emitters, as detected by first and second light detectors. A similar approach can be used to detect the trail edge curl. The time delay between the light beam interruptions is proportional to the sheet substrate curl, and the order of interruptions indicates whether the sheet substrate curl is positive or negative. A first pair and a second pair of substrate constraint rollers can also be provided in the paper path upstream and downstream of the sensing system. The roller pairs closest to the sensor are made of relatively non-deformable materials or of materials of similar elasticity so that different media are constrained in the sensor zone with the same sheet trajectory relative to the nip.

    摘要翻译: 一种前沿和/或边缘边缘卷曲感知和约束方法和系统。 对准第一和第二发光器和检测器对,使得来自第一光发射器和第二光发射器的光束在传输介质片基板路径处交叉,其构成具有零卷曲的介质片基板的路径。 在第一和第二光检测器检测到的在片状基板的引线边缘上具有正或负卷曲的介质片基板中断来自第一和第二发光体的光束。 可以使用类似的方法来检测尾迹卷曲。 光束中断之间的时间延迟与片材基板卷曲成正比,中断顺序表示片基板卷曲是正还是负。 也可以在传感系统的上游和下游的纸路中提供第一对和第二对基板约束辊。 最靠近传感器的辊对由相对不可变形的材料或具有相似弹性的材料制成,使得传感器区域中不同的介质被限制在具有相对于辊隙的相同片材轨迹。

    Lead edge sheet curl sensor
    3.
    发明授权
    Lead edge sheet curl sensor 有权
    引线边缘卷曲传感器

    公开(公告)号:US07545519B2

    公开(公告)日:2009-06-09

    申请号:US11490692

    申请日:2006-07-20

    IPC分类号: G01B11/14

    摘要: A lead edge sheet curl sensor apparatus and method are disclosed. In general, a first and a second light emitter are aligned wherein the light beams from the first light emitter and second light emitter cross. The first and second light emitter beams cross at the transport media sheet substrate path wherein the transport media sheet substrate path is the path of a media sheet substrate with zero curl. First and second light detectors are aligned to receive the light beams from the first and second light emitters. A media sheet substrate with either positive or negative curl on the lead edge of the sheet substrate interrupts light beams from first and second light emitters, as detected at first and second light detectors. The time delay between the light beam interruptions is proportional to the sheet substrate curl, and the order of interruptions indicates whether the sheet substrate curl is positive or negative.

    摘要翻译: 公开了一种铅边缘卷曲传感器装置和方法。 一般来说,第一和第二光发射器对准,其中来自第一光发射器和第二发光器的光束交叉。 第一和第二光发射器光束在传输介质片基板路径处交叉,其中传输介质片基板路径是具有零卷曲的介质片基板的路径。 对准第一和第二光检测器以接收来自第一和第二发光体的光束。 如在第一和第二光检测器处检测到的,在片状基板的引线边缘上具有正或负卷曲的介质片基板中断来自第一和第二发光体的光束。 光束中断之间的时间延迟与片材基板卷曲成正比,中断顺序表示片基板卷曲是正还是负。

    Lead edge sheet curl sensor
    5.
    发明申请
    Lead edge sheet curl sensor 有权
    引线边缘卷曲传感器

    公开(公告)号:US20080018913A1

    公开(公告)日:2008-01-24

    申请号:US11490692

    申请日:2006-07-20

    IPC分类号: G01B11/14

    摘要: A lead edge sheet curl sensor apparatus and method are disclosed. In general, a first and a second light emitter are aligned wherein the light beams from the first light emitter and second light emitter cross. The first and second light emitter beams cross at the transport media sheet substrate path wherein the transport media sheet substrate path is the path of a media sheet substrate with zero curl. First and second light detectors are aligned to receive the light beams from the first and second light emitters.A media sheet substrate with either positive or negative curl on the lead edge of the sheet substrate interrupts light beams from first and second light emitters, as detected at first and second light detectors. The time delay between the light beam interruptions is proportional to the sheet substrate curl, and the order of interruptions indicates whether the sheet substrate curl is positive or negative.

    摘要翻译: 公开了一种铅边缘卷曲传感器装置和方法。 一般来说,第一和第二光发射器对准,其中来自第一光发射器和第二发光器的光束交叉。 第一和第二光发射器光束在传输介质片基板路径处交叉,其中传输介质片基板路径是具有零卷曲的介质片基板的路径。 对准第一和第二光检测器以接收来自第一和第二发光体的光束。 如在第一和第二光检测器处检测到的,在片状基板的引线边缘上具有正或负卷曲的介质片基板中断来自第一和第二发光体的光束。 光束中断之间的时间延迟与片材基板卷曲成正比,中断顺序表示片基板卷曲是正还是负。

    SYSTEM AND METHOD FOR LEAD EDGE AND TRAIL EDGE SHEET CONSTRAINT AND CURL SENSING
    10.
    发明申请
    SYSTEM AND METHOD FOR LEAD EDGE AND TRAIL EDGE SHEET CONSTRAINT AND CURL SENSING 有权
    用于边缘边缘和条纹边缘约束和曲线感测的系统和方法

    公开(公告)号:US20080019751A1

    公开(公告)日:2008-01-24

    申请号:US11737083

    申请日:2007-04-18

    IPC分类号: G03G15/00

    摘要: A lead edge and/or trail edge sheet curl sensing and constraint method and system. First and second light emitters and detector pairs are aligned such that the light beams from the first light emitter and second light emitter cross at the transport media sheet substrate path, which constitutes the path of a media sheet substrate with zero curl. A media sheet substrate with either positive or negative curl on the lead edge of the sheet substrate interrupts light beams from the first and second light emitters, as detected by first and second light detectors. A similar approach can be used to detect the trail edge curl. The time delay between the light beam interruptions is proportional to the sheet substrate curl, and the order of interruptions indicates whether the sheet substrate curl is positive or negative. A first pair and a second pair of substrate constraint rollers can also be provided in the paper path upstream and downstream of the sensing system. The roller pairs closest to the sensor are made of relatively non-deformable materials or of materials of similar elasticity so that different media are constrained in the sensor zone with the same sheet trajectory relative to the nip.

    摘要翻译: 一种前沿和/或边缘边缘卷曲感知和约束方法和系统。 对准第一和第二发光器和检测器对,使得来自第一光发射器和第二光发射器的光束在传输介质片基板路径处交叉,其构成具有零卷曲的介质片基板的路径。 在第一和第二光检测器检测到的在片状基板的引线边缘上具有正或负卷曲的介质片基板中断来自第一和第二发光体的光束。 可以使用类似的方法来检测尾迹卷曲。 光束中断之间的时间延迟与片材基板卷曲成正比,中断顺序表示片基板卷曲是正还是负。 也可以在传感系统的上游和下游的纸路中提供第一对和第二对基板约束辊。 最靠近传感器的辊对由相对不可变形的材料或具有相似弹性的材料制成,使得传感器区域中不同的介质被限制在具有相对于辊隙的相同片材轨迹。