Twin-wire former
    1.
    发明授权
    Twin-wire former 失效
    双线形

    公开(公告)号:US5141600A

    公开(公告)日:1992-08-25

    申请号:US573048

    申请日:1990-08-03

    IPC分类号: D21F9/02 D21F9/00

    CPC分类号: D21F9/003

    摘要: A twin-wire former for making a web of paper (9) having two endless loop travelling screens (11, 12) which travel over respective breast rolls (13, 14) and form a wedge-shaped feed gap of a twin-wire region. In the twin wire region the two travelling screens pass first over a curved stationary supporting device (15), then over a forming roll (16) which lies in the same screen loop (11) as the curved supporting device (15), and finally over a screen suction roll (18) which lies in the other screen loop (18). In order to form a large storage volume for water, an additional lattice-like outer shell (27) surrounded by a coarse-mesh textile filter envelope (28) is arranged on the body (16a) of the forming roll. Approximately half the periphery of the screen suction roll (18) is wrapped by the two screens (11, 12). At the end of the said wrapping zone, the one screen (11) runs off from the screen suction roll (18) followed by the other screen (12) together with the web of paper (9).

    摘要翻译: PCT No.PCT / EP89 / 00502 Sec。 371日期1990年8月3日 102(e)日期1990年8月3日PCT提交1989年5月5日PCT公布。 WO89 / 11000 PCT公开号 日期:1月16日,1989年。一种用于制造具有两个环形行进筛网(11,12)的纸张网(9)的双线成形机,其在相应的母乳辊(13,14)上行进并形成楔形进给 双线区域的间隙。 在双线区域中,两个移动屏幕首先穿过弯曲的固定支撑装置(15),然后穿过位于与弯曲支撑装置(15)相同的屏幕环(11)中的成形辊(16),最后 在位于另一屏幕回路(18)中的屏幕抽吸辊(18)上。 为了形成用于水的大储存体积,在成形辊的主体(16a)上布置有由粗网织物过滤器外壳(28)包围的附加格子状外壳(27)。 筛网抽吸辊(18)的大约一半的周边被两个筛网(11,12)包裹。 在所述包装区域的末端,一个筛网(11)与丝网(9)一起从筛网吸辊(18)离开,接着是另一个筛网(12)。