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1. 发明授权

US4062914A Method and apparatus for monitoring the compression force of pelleting press rams 失效
标题翻译：用于监测造粒压力机的压缩力的方法和装置
公开(公告)号：US4062914A
公开(公告)日：1977-12-13
申请号：US684821
申请日：1976-05-10
申请人： Jurgen Hinzpeter
发明人： Jurgen Hinzpeter
IPC分类号： B30B11/08 , B30B11/00 , B30B15/14 , B30B15/28 , G01L1/22 , G01L5/00 , G05D15/01 , B29C3/06
CPC分类号： B30B11/005 , G01L1/22 , G01L5/0071 , G01L5/0076 , G05D15/01
摘要： A tablet compressing machine includes strain gauge sensors 5, 5' for monitoring the forces applied to piston rams 1, 2 by pressure rollers 3,4. The strain gauges are connected in a bridge circuit whose amplified output is fed to a mean value generator 15 and a logic control unit 9. The former generates a mean pressing force curve (A in FIG. 3) while the latter causes preset individual limit values for the pressing force signals (B, C in FIG. 3) to track fluctuations in the mean value curve, and compares the instantaneous pressing force signals with the individual limit values. Whenever these limit values are exceeded or fallen below the machine is disabled and the faulty ram is indicated on a display 14 by means of a sensor 7 which signals the ram being monitored. Means are also provided for disabling the machine whenever the mean value exceeds or falls below adjustable tolerance limits.
摘要翻译：片剂压缩机包括用于监测通过压力辊3,4施加到活塞柱塞1,2的力的应变计传感器5,5'。应变仪连接在桥式电路中，其放大的输出被馈送到平均值发生器15和逻辑控制单元9.前者产生平均按压力曲线（图3中的A），而后者引起预设的个别极限值对于按压力信号（图3中的B，C）来跟踪平均值曲线的波动，并将瞬时按压力信号与各个极限值进行比较。每当这些极限值超过或低于该机器时，机器被禁用，并且通过传感器7在显示器14上指示故障的冲击器，该传感器7发信号通知所监控的冲击器。当平均值超过或低于可调节的公差极限时，还提供了用于禁用机器的手段。

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