METHOD AND APPARATUS FOR MEASURING AND REMOVING ROTATIONAL VARIABILITY FROM A NIP PRESSURE PROFILE OF A COVERED ROLL OF A NIP PRESS

    公开(公告)号:US20240401273A1

    公开(公告)日:2024-12-05

    申请号:US18806785

    申请日:2024-08-16

    Inventor: KERRY D. FIGIEL

    Abstract: Multiple groups of sensors are circumferentially spaced apart at each cross-directional position along a sensing roll of a nip press to measure and cancel or nearly cancel the effects of rotational variability which may be acting on the sensing roll. The strategically-placed sensors are designed to measure the pressure being placed against the web that is being advanced through the nip press. The average of the measurements of multiple sensors spaced circumferential apart provides a good cancellation of any rotational variability that might be found at a cross-directional position on the sensing roll. In this manner, a more true measurement of the nip pressure profile can be obtained and better adjustments made to reduce nip pressure profile variability. In addition, the nip variability profile may be used as a predictor of cover or bearing failures, resonant frequencies and other roll anomalies.

    Method and apparatus for measuring and removing rotational variability from a nip pressure profile of a covered roll of a nip press

    公开(公告)号:US11629461B2

    公开(公告)日:2023-04-18

    申请号:US17163777

    申请日:2021-02-01

    Inventor: Kerry D. Figiel

    Abstract: Multiple groups of sensors are circumferentially spaced apart at each cross-directional position along a sensing roll of a nip press to measure and cancel or nearly cancel the effects of rotational variability which may be acting on the sensing roll. The strategically-placed sensors are designed to measure the pressure being placed against the web that is being advanced through the nip press. The average of the measurements of multiple sensors spaced circumferential apart provides a good cancellation of any rotational variability that might be found at a cross-directional position on the sensing roll. In this manner, a more true measurement of the nip pressure profile can be obtained and better adjustments made to reduce nip pressure profile variability. In addition, the nip variability profile may be used as a predictor of cover or bearing failures, resonant frequencies and other roll anomalies.

    Monitoring applicator rods and applicator rod nips

    公开(公告)号:US10370795B2

    公开(公告)日:2019-08-06

    申请号:US14736060

    申请日:2015-06-10

    Inventor: Kerry D. Figiel

    Abstract: A sensor signal is generated from a plurality of sensors located on a sensing roll, wherein each sensor enters a nip between the sensing roll and a rotating component during each rotation of the sensing roll. A rotating applicator rod forms forming a second nip with the sensing roll such that each sensor enters the second nip during each rotation of the sensing roll and each sensor generates a sensor signal upon entering the second nip. A periodically occurring starting reference is generated associated with each rotation of the applicator rod and the signal generated by each sensor is received so that a particular one of the sensors which generated the signal is determined and one of a plurality of tracking segments is identified. The signal is stored to associate the sensor signal with the identified one tracking segment.

    MONITORING UPSTREAM MACHINE WIRES AND FELTS
    4.
    发明申请
    MONITORING UPSTREAM MACHINE WIRES AND FELTS 有权
    监控上海机器线和火线

    公开(公告)号:US20160362837A1

    公开(公告)日:2016-12-15

    申请号:US14735655

    申请日:2015-06-10

    Inventor: KERRY D. FIGIEL

    Abstract: Collecting data includes generating a sensor signal from each of a plurality of sensors located on a sensing roll, wherein each signal is generated when each sensor enters a region of a nip between the sensing roll and mating roll during each rotation of the sensing roll; wherein a web of material travels through the nip and a continuous band contacts a region of the web of material upstream from or at the nip. A periodically occurring starting reference is generated associated with each rotation of the continuous band and the signal generated by each sensor is received so that the one of the plurality of sensors which generated this signal is determined and one of a plurality of tracking segments associated with the continuous band is identified. The signal is stored to associate the respective sensor signal with the identified one tracking segment.

    Abstract translation: 收集数据包括从位于感测辊上的多个传感器中的每一个传感器信号产生传感器信号,其中每个传感器在感测辊的每次旋转期间进入感测辊和匹配辊之间的辊隙的区域时产生每个信号; 其中材料网行进通过所述辊隙,并且连续带接触所述辊隙上游或所述辊隙处的所述材料幅材的区域。 产生与连续波段的每次旋转相关联的周期性发生的起始基准,并且接收由每个传感器产生的信号,使得产生该信号的多个传感器中的一个传感器被确定,并且与 识别连续波段。 存储信号以将相应的传感器信号与所识别的一个跟踪段相关联。

    Roll with sensors for a machine for producing and/or processing a material web and machine for producing and/or processing a material web
    5.
    发明授权
    Roll with sensors for a machine for producing and/or processing a material web and machine for producing and/or processing a material web 有权
    用于生产和/或加工用于生产和/或加工材料网的材料网和机器的机器的传感器

    公开(公告)号:US09302871B2

    公开(公告)日:2016-04-05

    申请号:US14372053

    申请日:2013-01-08

    Abstract: A roll for a machine for processing a material web, in particular a paper, cardboard, or tissue machine, has a cylindrical roll core and a roll cover which is arranged on the radially outer lateral face of the roll core. The roll cover has a functional layer and a connecting structure which lies radially between the roll core and the functional layer. The radially outer lateral face of the functional layer provides a contact surface which can be brought into contact with the material web or a covering. A plurality of pressure and/or temperature-sensitive sensors are embedded in the roll cover. The sensors are arranged in the connecting structure or at the interface between the connecting structure and the functional layer.

    Abstract translation: 用于处理材料幅材的机器的卷,特别是纸,纸板或纸巾机器具有圆柱形辊芯和辊盖,其布置在辊芯的径向外侧面上。 辊盖具有功能层和径向位于辊芯和功能层之间的连接结构。 功能层的径向外侧面提供可与材料纤维网或覆盖层接触的接触表面。 多个压力和/或温度敏感的传感器嵌入辊盖中。 传感器布置在连接结构中或连接结构和功能层之间的界面处。

    Machine for producing a fiber web
    6.
    发明授权
    Machine for producing a fiber web 有权
    生产纤维网的机器

    公开(公告)号:US09121136B2

    公开(公告)日:2015-09-01

    申请号:US14381670

    申请日:2013-02-26

    Abstract: A machine for producing and/or processing a fiber web, in particular a tissue web, includes a press roll and a mating roll which forms a nip with the press roll and the circumferential surface of which has a contour running in the cross-machine direction which, during operation of the machine, changes as compared with when the machine is at a standstill. The press roll has a roll core and a roll cover surrounding the roll core. Multiple pressure and/or temperature sensors are disposed in the roll cover and/or between the roll core and the roll cover. The pressure and/or temperature sensors are spaced apart differently far from one another in the cross-machine direction of the press roll, at least in some areas.

    Abstract translation: 用于生产和/或加工纤维网,特别是织物纸的机器包括压榨辊和配合辊,其与压榨辊形成辊隙,并且其周向表面具有沿机器方向运行的轮廓 与机器处于停机状态相比,在机器运行期间发生变化。 压辊具有卷芯和围绕卷芯的辊盖。 多个压力和/或温度传感器设置在辊盖中和/或辊芯和辊盖之间。 至少在一些区域中,压力传感器和/或温度传感器在压辊的横向方向上彼此不同地彼此间隔开。

    Method and apparatus of a twin-wire press
    8.
    发明授权
    Method and apparatus of a twin-wire press 有权
    双网印刷机的方法和装置

    公开(公告)号:US07794568B2

    公开(公告)日:2010-09-14

    申请号:US11666854

    申请日:2005-10-19

    Applicant: Leif Odmark

    Inventor: Leif Odmark

    CPC classification number: D21F1/80 B30B9/24 D21F9/003

    Abstract: Methods for dewatering a fiber suspension in a twin-wire press, having a lower wire and an upper wire, and a first and a second dewatering table, which supports the wires such that a dewatering space is defined by the wires, are disclosed. The wires transport the fiber suspension under compression of the wires by the dewatering tables, such that the fiber suspension is dewatered and forms a fiber web between the wires. A separate pressing force is applied against one of the wires, such that this wire presses the formed fiber web via the second wire against one of the dewatering tables and further dewaters the fiber web. The separate pressing force is adjusted such that a desired dryness of the fiber web leaving the dewatering tables is achieved. A twin-wire press is also disclosed.

    Abstract translation: 公开了一种在具有下线和上线的双网压机中脱水纤维悬浮液的方法,以及第一和第二脱水台,其支撑线,使得由导线限定脱水空间。 电线通过脱水台在电线压缩下输送纤维悬浮液,使得纤维悬浮液脱水并在导线之间形成纤维网。 对其中一根电线施加单独的按压力,使得该电线经由第二电线将形成的纤维网压靠在一个脱水台上,并进一步使纤维网脱水。 调整单独的按压力,从而实现离开脱水台的纤维网所需的干燥度。 还公开了一种双网印刷机。

    System and method for influencing and/or monitoring a press pressure profile
    9.
    发明申请
    System and method for influencing and/or monitoring a press pressure profile 审中-公开
    影响和/或监测压力压力分布的系统和方法

    公开(公告)号:US20050098290A1

    公开(公告)日:2005-05-12

    申请号:US11020082

    申请日:2004-12-23

    CPC classification number: D21G9/0036 D21F3/06 D21G1/004 D21G1/006

    Abstract: System and method for influencing and/or monitoring a press pressure profile along at least one of a web running direction and a transverse direction in an extended press nip used for treating a material web. The system includes a measuring device for measuring the press pressure profile, a profiling arrangement which participates in producing the press pressure profile, and a data storage device for storing data related to the profiling arrangement. The method includes storing, in a data storage device, data relating to a profiling arrangement which participates in producing the press pressure profile, retrieving the data and acting on the profiling arrangement based on the data. This Abstract is not intended to define the invention disclosed in the specification, nor intended to limit the scope of the invention in any way.

    Abstract translation: 用于影响和/或监测在用于处理材料幅材的延伸的压榨辊隙中的幅材运行方向和横向方向中的至少一个的压力分布的系统和方法。 该系统包括用于测量压力分布的测量装置,参与产生压力分布的分析装置,以及用于存储与分析装置有关的数据的数据存储装置。 该方法包括在数据存储设备中存储参与生成压力分布的轮廓设置的数据,基于该数据检索数据和作用于轮廓分布。 本摘要不旨在限定说明书中公开的发明,也不旨在以任何方式限制本发明的范围。

    Machine direction profiling of extended nip press shoe
    10.
    发明授权
    Machine direction profiling of extended nip press shoe 失效
    扩展压区压力机的机器方向分析

    公开(公告)号:US5897747A

    公开(公告)日:1999-04-27

    申请号:US908853

    申请日:1997-08-08

    Applicant: Paul D. Monroe

    Inventor: Paul D. Monroe

    CPC classification number: D21F3/0218

    Abstract: An extended nip press having a concave shoe which is supported on a hydraulic actuator which urges the shoe against a backing roll. A pair of opposed profile control hydraulic actuators apply a pure couple about the load support line formed by a bearing pin which transmits the support load from the hydraulic actuator to the shoe. A leading hydraulic actuator is positioned in front of the load support line and pulls down on the shoe. A trailing hydraulic actuator is positioned behind the load support line and pushes up on the shoe. The leading hydraulic actuator and trailing hydraulic actuator are equally spaced from the load support line and have equal hydraulic actuator area and are connected to the same hydraulic reservoir. Thus the hydraulic actuators exactly balance each other out except for the couple or torque which they apply about the load support line.

    Abstract translation: 一种具有凹形鞋的延伸压区压榨机,其被支撑在液压致动器上,该液压致动器将鞋抵靠背衬辊推动。 一对相对的轮廓控制液压致动器围绕由轴承销形成的负载支撑线施加纯耦合,所述支撑销将支撑负载从液压致动器传递到鞋。 领先的液压执行器位于负载支撑线的前方,并向下拉。 尾部液压致动器定位在负载支撑线后面并向上推动鞋。 领先的液压致动器和拖尾液压致动器与负载支撑线等间隔开并且具有相等的液压致动器区域并且连接到相同的液压储存器。 因此,液压执行器除了应用于负载支撑线的耦合或转矩之外,彼此完全相互平衡。

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