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    • 7. 发明专利
    • Rapid control of basis weight for papermaking machine and apparatus therefor
    • 制革机械基础重量的快速控制及其设备
    • JPH11279979A
    • 1999-10-12
    • JP4527199
    • 1999-01-14
    • Honeywell Measurex Corpハニーウェル−メジャレックス・コーポレーション
    • BOSSEN DAVID AHEAVEN E MICHAELGOSS JOHN D
    • G05B11/36D21F1/06D21F7/06D21G9/00
    • D21G9/0027D21F1/06Y10S162/06Y10S162/11
    • PROBLEM TO BE SOLVED: To provide both an apparatus for rapidly controlling the basis weight of a paper produced in a papermaking machine and a method for the control.
      SOLUTION: A principal part of a stock flows through a first line 55A controlled with a thick stock valve and then flows from a stock box 53 into a headbox 1. A secondary part of the stock is deflected through a second line 56A regulated by a second valve 56B. The thick stock valve is controlled by the basis weight in a dry part and the second valve 56B responds to measured values of the basis weight of the wet stock on a wire 7. The second line 56A and the control valve 56B form a close regulation loop at a quick response time together with the measured values of the basis weight in a wet part. On the other hand, the first line 55A and the control valve 55B responsive to the measured values of the basis weight in the dry part form a rough regulation loop.
      COPYRIGHT: (C)1999,JPO
    • 要解决的问题:提供用于快速控制在造纸机中生产的纸张的基重的装置和用于控制的方法。 解决方案:原料的主要部分流经由厚库存阀控制的第一管线55A,然后从储备箱53流入流浆箱1.储料的次级部分通过由第二管线56A调节的第二管线56A 阀56B。 厚库存阀由干燥部分的基重控制,第二阀56B响应于钢丝7上的湿料的基重的测量值。第二管线56A和控制阀56B形成紧密的调节回路 在快速响应时间以及在湿部分中的基重的测量值。 另一方面,响应于干燥部分中的单位面积重量的测量值的第一管线55A和控制阀55B形成粗略的调节回路。
    • 8. 发明申请
    • DEVICE AND METHOD FOR ON-LINE CONTROL OF THE FIBRE DIRECTION OF A FIBRE WEB
    • 纤维网的纤维方向的在线控制的装置和方法
    • WO03089716A8
    • 2004-05-21
    • PCT/SE0300599
    • 2003-04-15
    • STORA ENSO ABFERM JOHANHUEBINETTE ANDERS
    • FERM JOHANHUEBINETTE ANDERS
    • D21F1/02D21G9/00D21F1/00D21F7/06D21F11/00
    • D21G9/0027D21F1/02D21F1/06D21G9/0054Y10S162/11
    • A device and a method for on-line control of the fibre direction of a fibre web (8), being manufactured from stock delivered from a headbox (3) through a discharge opening (11) defined by movable lips (9, 10), while using a fibre direction meter (12) located downstream and actuating members (14), which are arranged along thelips for regulation of the discharge opening as a response to individual control signals, each being a function of measured fibre direction values, wherein a control unit (13) receives the measured fibre direction values, calculates the control signals, and transmits these to the actuating members. According to the invention, the control unit identifies an array of fibre direction values, originating from positions in the cross direction of the fibre web which correspond to the positions of the actuating members. The control unit then compares the array of fibre direction values with an array of desired fibre direction values.
    • 一种用于在线控制纤维网(8)的纤维方向的装置和方法,其由从流浆箱(3)通过由可动唇缘(9,10)限定的排放开口(11)输送的货物制造, 同时使用位于下游的纤维方向计量器(12)和作为对各个控制信号的响应的沿着所述排放口排列以调节排放口的致动构件(14),每个都是测量的纤维方向值的函数,其中控制 单元(13)接收所测量的光纤方向值,计算控制信号,并将其发送到致动构件。 根据本发明,控制单元识别纤维方向值的阵列,源自纤维网横向方向上对应于致动构件的位置的位置。 然后,控制单元将光纤方向值的阵列与期望的光纤方向值的阵列进行比较。
    • 9. 发明申请
    • METHOD AND SYSTEM FOR MONITORING WEB DEFECTS ALONG A MOVING PAPER WEB
    • 用于在移动纸张网络中监视网络缺陷的方法和系统
    • WO2001021516A2
    • 2001-03-29
    • PCT/US2000040947
    • 2000-09-20
    • THE MEAD CORPORATION
    • THE MEAD CORPORATIONBROEK, DavidSWINEHART, Dirk, EverettCONNOLLY, Kevin, Paul
    • B65H26/02
    • B65H26/02Y10S162/10Y10S162/11
    • A method and system for monitoring web defects along a moving web of paper involves determining a dimension of a web defect as the paper web moves along an established paper path in a machine direction. A distance from a side edge of the paper web to a location of the web defect is also determined as the paper web moves along the established paper path. A value indicative of a likelihood of paper web failure at the web defect is then established based at least in part upon both the determined dimension and the determined distance. A determination of whether to stop the moving paper web for repair of the web defect can then be made based at least in part upon the determined failure likelihood indicative value. An alternative technique involves establishing a plurality of paper web width regions. A dimension of a web defect is determined as the paper web moves along an established paper path in a machine direction. The web defect is categorized as falling into one of the established paper web width regions. A determination of whether to repair the web defect can then be made based at least in part upon the determined dimension and the categorization made.
    • 一种用于沿着纸张的移动幅材(10)监测纸张缺陷的方法和系统包括当纸幅(10)沿机器方向(12)沿着既定纸张路径移动时确定纸张缺陷(14)的尺寸。 当纸幅(10)沿已建立的纸张路径移动时,纸幅(10)的侧边缘到纸幅缺陷(14)的位置的距离也被确定。 至少部分地基于所确定的尺寸和确定的距离来建立指示在纸张缺陷(14)处的纸幅故障的可能性的值。 然后可以至少部分地基于确定的故障可能性指示值来确定是否停止用于修复网状缺陷(14)的移动纸幅(10)。 一种替代技术涉及建立多个纸幅宽度区域。 当纸幅(10)沿机器方向(12)沿着既定的纸张路径移动时,确定纸幅缺陷(14)的尺寸。 网状缺陷(14)被分类为落入所建立的纸幅宽度区域之一。 然后可以至少部分地基于确定的维度和进行的分类来确定是否修复网状缺陷(14)。
    • 10. 发明申请
    • HIGH RESOLUTION SYSTEM AND METHOD FOR SHEET MEASUREMENT OF TRAVEL WEB
    • 高分辨率系统和旅行网页测量方法
    • WO99014607A2
    • 1999-03-25
    • PCT/US1998/008401
    • 1998-04-29
    • D21H23/08G01G9/00G01N27/02G01N27/04G01N27/22G01N33/34G01R27/26
    • D21H23/08G01G9/00G01N33/343Y10S162/06Y10S162/11
    • A system and method that combine an array of fast under wire water weight sensors with a scanning system provide an accurate measurement of the entire sheet down to 1 in. by 1 in. resolution. Because CD profiles are obtained instantaneously, MD and CD variations are completely decoupled, even if CD profiles are taken at longer intervals apart. The technique allows monitoring the basis weight of a sheet of material that is formed in a process that employs a dewatering machine that includes a water permeable moving fabric supporting wet stock and a dry end which technique includes the steps of: (a) positioning an array of water weight sensor elements (array) underneath and adjacent to the fabric wherein the array is positioned in a cross direction to the moving fabric; (b) positioning a scanning sensor at the dry end to measure the dry basis weight of the sheet of material; (c) operating the machine and measuring the water weights of the sheet of material with the array and measuring the dry basis weight of the sheet of material with the scanning sensor at the dry end; (d) developing a functional relationship between water weight of the sheet as measured by the array and the basis weight of the sheet which is formed after being substantially de-watered; and (e) periodically adjusting the functional relationship using readings from the scanning sensor to compensate for variations due to process parameters. The technique can further include the step of correlating positional readings of the scanning sensor with measurements from the corresponding element in the array to obtain separate calibration for each individual element of the array and step (e) comprises adjusting the functional relationship obtained in step (d) and the calibration obtained in to compensate for variations due to process parameters.
    • 将快速下线水重传感器阵列与扫描系统相结合的系统和方法可以将整个片材的精确测量精确到1英寸×1英寸分辨率。 由于CD配置文件被即时获得,所以MD和CD的变化是完全解耦的,即使以更长的间隔分开进行CD配置文件。 该技术允许监测在采用脱水机的过程中形成的一片材料的基重,该脱水机包括支撑湿料的透水移动织物和干端,该技术包括以下步骤:(a)将阵列 的水重量传感器元件(阵列)在织物下方并与织物相邻,其中阵列沿着与移动织物交叉的方向定位; (b)将扫描传感器定位在干燥端以测量材料片的干基重量; (c)操作机器并用阵列测量材料片的水重,并用扫描传感器在干燥末端测量材料片的干基重量; (d)通过阵列测量的片材的水重与在基本上脱水后形成的片材的基重之间发展功能关系; 和(e)使用来自扫描传感器的读数周期性地调整功能关系,以补偿由于工艺参数引起的变化。 该技术可以进一步包括将扫描传感器的位置读数与来自阵列中的相应元件的测量值相关的步骤,以获得阵列的每个单独元件的单独校准,步骤(e)包括调整步骤(d)中获得的功能关系 )和获得的校准以补偿由于工艺参数引起的变化。