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    • 1. 发明授权
    • Method to control response shape of footprint for zone moisture control on a steambox and maintain screen plate cleanliness
    • 控制蒸汽箱区域水分控制响应形状的方法,并保持屏板清洁度
    • US09145644B2
    • 2015-09-29
    • US13362318
    • 2012-01-31
    • Jonathan Crawford
    • Jonathan Crawford
    • F26B13/00B05B1/14B05B1/18D21F7/00D21G7/00
    • D21F7/008D21G7/00
    • A steam distributor includes multiple steam discharge chambers that are separated by laterally spaced apart partition panels that create corresponding profiling zones. The profiling zones are covered by a perforated screen plate through which steam passes onto a moving sheet that is traveling in the machine direction. One or more of the partition panels is not aligned in the machine direction so that one or more of the steam discharge chambers defines a non-rectangular profiling zone. The orientation of one or more of the baffles can be adjusted in order to control the response shape of the steam footprints on a moving sheet for zone moisture control. The panels can be articulated to allow dynamic adjustments of the profiling zones for cross direction response control.
    • 蒸汽分配器包括由横向间隔开的分隔板分开的多个蒸汽排放室,其形成相应的分布区。 造型区域由穿孔筛板覆盖,蒸汽通过该筛板穿过机器方向行进的移动片材。 一个或多个分隔板在机器方向上不对齐,使得一个或多个蒸汽排放室限定非矩形轮廓区。 可以调节一个或多个挡板的取向以便控制用于区域湿度控制的移动片材上的蒸汽足迹的响应形状。 面板可以铰接,以允许动态调整剖面区域进行横向响应控制。
    • 2. 发明授权
    • Sheet stabilizer with dual inline machine direction air clamps and backsteps
    • 具有双列直列机器方向气夹和后挡的板式稳定器
    • US08088255B2
    • 2012-01-03
    • US12105274
    • 2008-04-18
    • Tamer Mark AlevSalvatore Chirico
    • Tamer Mark AlevSalvatore Chirico
    • B65H23/24B65H20/10B65H29/18D21F1/42D21F7/06D21F9/00G01B11/06
    • B65H23/24B65H2406/112D21F7/06D21G9/0036D21G9/0063
    • An air stabilization system employing two substantially parallel, codirectional Coanda nozzles, that are positioned adjacent a flexible moving web, with each nozzle exhausting gas at the same downstream machine direction, subjects the moving web to shear forces effective to stabilize the web. Each nozzle includes an elongated slot that is substantially perpendicular to the path of the moving web and a backstep located downstream of the direction of airflow extending from the Coanda slot. The two Coanda nozzles serve as separate points along the machine direction for controlling the height of the moving web. By modulating the velocities or other parameters of gases exiting the Coanda nozzles, the shape of the moving web between the nozzles can be manipulated to present a planar contour for measurements. The air stabilization system can be incorporated into a scanner head to measure the caliper of paper, plastic, and other flexible web products.
    • 使用两个基本上平行的,编码方向的柯安达喷嘴的空气稳定系统,其位于柔性移动腹板附近,每个喷嘴排出气体在相同的下游机器方向上,使得移动腹板受到有效稳定腹板的剪切力。 每个喷嘴包括基本上垂直于移动幅材的路径的细长槽和位于从Coanda槽延伸的气流方向的下游的后沿。 两个柯恩达喷嘴作为沿机器方向的分离点,用于控制移动幅材的高度。 通过调节离开柯恩达喷嘴的气体的速度或其他参数,可以操纵喷嘴之间的移动幅材的形状以呈现用于测量的平面轮廓。 可将空气稳定系统结合到扫描头中以测量纸,塑料和其它柔性网状产品的厚度。
    • 3. 发明授权
    • Pressure equalizing baffle and coanda air clamp
    • 压力平衡挡板和空调夹具
    • US08083896B2
    • 2011-12-27
    • US12547323
    • 2009-08-25
    • Michael Kon Yew Hughes
    • Michael Kon Yew Hughes
    • B65H23/24B65H20/10B65H29/18D21F1/42D21F7/06D21G9/00G01B11/06
    • D21F1/42B65H20/14B65H23/24B65H2406/112B65H2511/13B65H2553/40D21F5/187
    • An air stabilization system employing two parallel, opposite-facing Coanda nozzles, with each nozzle exhausting gas at opposite directions, subjects a moving flexible web to opposing forces effective to create local tension within the web. Each nozzle includes an elongated slot that is perpendicular to the path of the moving web. The nozzles serve as separate points along the machine direction for controlling the height of the web. The operative surface with the nozzles can exhibit a flush surface. The nozzles can be formed on elevated structures on the operative surface. The operative surface can be covered with a transparent substrate to minimize shape distortions on the moving web and to prevent debris from collecting around the sensor. An internal baffle is employed to channel air flow within each nozzle. The baffle equalizes the gas pressure across the nozzle and directs air flow towards it. By modulating the velocities of gases exiting the nozzles, the shape of the web can be manipulated to present a planar contour. The air stabilization system can be incorporated into a caliper scanner.
    • 使用两个平行的相对面的Coanda喷嘴的空气稳定系统,每个喷嘴在相反方向排出气体,使一个移动的柔性网对着有效地在网内产生局部张力的相反的力。 每个喷嘴包括垂直于移动幅材的路径的细长槽。 喷嘴作为沿机器方向的分离点,用于控制幅材的高度。 具有喷嘴的操作表面可以呈现平齐的表面。 喷嘴可以在操作表面上的升高的结构上形成。 操作表面可以用透明基底覆盖,以最小化移动幅材上的形状变形,并防止碎片收集在传感器周围。 内部挡板用于引导每个喷嘴内的气流。 挡板使穿过喷嘴的气体压力相等,并引导空气流向其。 通过调节离开喷嘴的气体的速度,可以操纵幅材的形状以呈现平面轮廓。 空气稳定系统可以结合到卡尺扫描仪中。
    • 9. 发明授权
    • Combined paper sheet temperature and moisture sensor
    • 组合纸张温度和湿度传感器
    • US07494567B2
    • 2009-02-24
    • US11364930
    • 2006-02-28
    • Frank M. Haran
    • Frank M. Haran
    • D21F7/06
    • G01N21/3554D21F7/003D21G9/0045G01N21/3559G01N21/86G01N2021/8663
    • Temperature measurements of sheet material such as paper can be obtained directly from an analysis of the absorption spectrum of water in the infrared region. The technique is based in part on the recognition that the central wavelength position of a selected moisture peak is dependent upon the sheet temperature; the wavelength position also has a known temperature sensitivity. Thus, once the wavelength position of this moisture peak is ascertained, the moisture temperature of the product being monitored can be calculated. The position of the moisture peak is preferably obtained from the derivative of the peak. By measuring the size of the infrared absorption and the wavelength position of the absorption peak, both the moisture content and the moisture temperature of the sheet material can be determined. The data is used for process control. Tunable laser diodes are particularly suited as the source of infrared radiation for the temperature sensors.
    • 纸张材料如纸的温度测量可以直接从红外区域的水的吸收光谱的分析中获得。 该技术部分基于认识到所选择的水分峰的中心波长位置取决于片材温度; 波长位置也具有已知的温度敏感度。 因此,一旦确定了该水分峰值的波长位置,就可以计算被监测产品的水分温度。 水分峰的位置优选从峰的衍生物获得。 通过测量吸收峰的红外吸收尺寸和波长位置,可以确定片材的水分含量和湿度温度。 数据用于过程控制。 可调谐激光二极管特别适用于温度传感器的红外辐射源。