公开(公告)号：US06372091B1

公开(公告)日：2002-04-16

申请号：US09336621

申请日：1999-06-18

申请人： Vaughn J. Wildfong ,  Jeffrey C. Irwin ,  Jay A. Shands ,  Robert L. Clarke

发明人： Vaughn J. Wildfong ,  Jeffrey C. Irwin ,  Jay A. Shands ,  Robert L. Clarke

IPC分类号： D21F100

摘要： A method and apparatus for beginning the formation of a paper web on a traveling forming wire, or between a pair of converging forming wires, includes a headbox on a papermaking machine for projecting a stock stream onto the forming wire, or between the forming wires over the porous face surface of a forming shoe. The forming wire or wires are looped to travel in a continuous path, and within at least one of the looped forming wires is the forming shoe, which is porous by way of grooves or openings over at least a portion of its face surface. The grooves are in the surface of the forming shoe which engages the inner surface of the looped forming wire to define a portion of the path of travel of the forming wire adjacent the headbox from which the stock stream is projected onto, or between, the forming wire(s). The grooves extend in the surface facing the forming wire from a point downstream of the leading edge in the nose portion of the face surface of forming shoe in the direction of forming wire travel. The grooves are angled at a small angle relative to the direction of forming wire travel. The grooves or openings receive water through the forming wire to gradually reduce the amount of water in the stock to control the initial stage of the formation of the nascent paper web on the forming wire over the forming shoe.

公开(公告)号：US07364643B2

公开(公告)日：2008-04-29

申请号：US10525275

申请日：2003-06-16

申请人： Antti Poikolainen ,  Jeffrey C. Irwin ,  Michael Odell ,  Hannu Korhonen ,  Ari Puurtinen ,  Sami Anttilainen

发明人： Antti Poikolainen ,  Jeffrey C. Irwin ,  Michael Odell ,  Hannu Korhonen ,  Ari Puurtinen ,  Sami Anttilainen

IPC分类号： D21F1/00 ,  D21F11/00 ,  D21F9/00

CPC分类号： D21F9/003 ,  D21F1/52

摘要： Fibrous stock is supplied by a paper or board machine headbox (1) between looped forming wires (11, 12). Water is removed in a first dewatering zone (Z1) formed with a fixed forming shoe (3) having a curved surface against which a wire (12) is supported while the opposite wire (11) is unsupported in the area of the shoe (3). Water is removed in a second dewatering zone (Z2) formed by fixed dewatering blades (21) on the other side of the wires (11, 12) and supported against the stock therebetween (21) and on the opposite side of the wires (11, 12) by dewatering blades (24), loaded in a controlled manner against the fixed dewatering blades (21) at gaps (22) between these so that pulsating dewatering is caused in the second zone (Z2). The wires (11, 12) are guided so the shoe (3) causes essentially non-pulsating dewatering in the stock.

摘要翻译： 纤维材料由环形成形线（11,12）之间的纸或板机流浆箱（1）供应。 在具有弯曲表面的固定成形靴（3）形成的第一脱水区（Z 1）中除去水，同时支撑线（12），而相对的线（11）不支撑在鞋的区域 3）。 在由电线（11,12）的另一侧由固定的脱水叶片（21）形成的第二脱水区（Z 2）中除去水，并且支撑在它们之间的坯料（21）上并且在电线的相对侧 通过在这些间隙（22）处以可控制的方式装载在固定脱水叶片（21）上的脱水叶片（24），使得在第二区域（Z 2）中产生脉动脱水。 引导线（11,12）被引导，使得鞋（3）在坯料中引起基本上非脉动的脱水。