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1. 发明申请

WO1997046756A1 EXTENDED NIP PRESS WITH OSCILLATING BLANKET FOR EXTENDED WEAR 审中-公开
标题翻译：扩展NIP压力与振动毯子扩展磨损
公开(公告)号：WO1997046756A1
公开(公告)日：1997-12-11
申请号：PCT/US1997007542
申请日：1997-05-05
申请人： BELOIT TECHNOLOGIES, INC.
发明人： BELOIT TECHNOLOGIES, INC. , LANGE, David, V. , McCARVILLE, David, J. , GARDE, Jeffrey, R.
IPC分类号： D21F03/02
CPC分类号： D21F3/0218 , D21F3/0245
摘要： An Extended Nip-type press (20) has a blanket (30) which passes over a shoe (22) which is urged against a backing roll (24) to form a press nip (56). A hydraulic system (70) and controller (94) provides for automatic continuous oscillation of the blanket (30) in the cross machine direction. The oscillation results in a region of high fatigue (58, 59) continuously moving over the blanket (30) surface so that the amount of time any particular region sees wear is minimized. Positioning of the heads (38, 42) to which the blanket (30) ends are mounted is controlled by hydraulic pistons (60, 62) mounted between a support beam (26) and the heads (38, 42). A controller (94) operates a valve (74) to reverse the direction of motion of the blanket (30) when sensors (92, 98) indicate one end of the blanket (30) has reached a stop (64, 80). A throttle valve (86) controls the rate at which hydraulic fluid is supplied to the cylinders (60, 62) which urge the head (38, 42) away from the shoe (22).
摘要翻译：一个延长的尼普式压力机（20）具有一个穿过一个穿过一个支承辊（24）形成压榨压区（56）的鞋（22）的橡皮布（30）。液压系统（70）和控制器（94）提供橡皮布（30）在横向上的自动连续振荡。振荡导致在毛毯（30）表面上连续移动的高疲劳（58,59）区域，使得任何特定区域看到的磨损时间的量最小化。安装橡皮布（30）端头的头部（38,42）的定位由安装在支撑梁（26）和头部（38,42）之间的液压活塞（60,62）控制。当传感器（92,98）指示橡皮布（30）的一端已经到达停止（64,80）时，控制器（94）操作阀（74）以反转橡皮布（30）的运动方向。节流阀（86）控制向液压缸（60,62）供应液压流体的速率，其将头部（38,42）推离鞋子（22）。

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