公开(公告)号：US3993898A

公开(公告)日：1976-11-23

申请号：US641860

申请日：1975-12-17

申请人： Surinder Singh Guliani ,  John David Petit ,  John Francis Sawdy

发明人： Surinder Singh Guliani ,  John David Petit ,  John Francis Sawdy

IPC分类号： B30B15/28 ,  G01D5/347 ,  G01D5/36 ,  G04F10/04 ,  G07C3/00 ,  H01J39/12 ,  G01D5/34

CPC分类号： B30B15/285 ,  G01D5/347 ,  G01D5/36 ,  G04F10/04 ,  G07C3/00

摘要： A portable self-contained testing apparatus is provided for accurately determining the stopping time of a press after the initiating of a STOP signal. The apparatus includes a detector head, a stationary grid, a synchronizing touch switch, and a control box with a digital readout. The detector head is mounted on the press ram to be movable therewith while the stationary grid member is mounted proximate to the detector to allow the detector to scan the grid lines on the grid as the ram moves. The touch switch is used to initiate the press STOP control signal and provides a signal to the control box to initiate grid count by the detector head whenever the press STOP signal is initiated through the touch switch. The control box has circuitry to convert the grid count signals from the detector head and the press STOP signals from the touch switch to a digital readout of the time required for the press to actually stop after the initiation of the press STOP signal.

摘要翻译： 提供便携式独立测试装置，用于在启动STOP信号之后准确地确定按压的停止时间。 该装置包括检测器头，固定栅格，同步触摸开关和具有数字读出器的控制箱。 检测器头安装在压力机压头上以随着其移动，而固定栅格构件安装在检测器附近，以允许检测器在压头移动时扫描格栅上的栅格线。 触摸开关用于启动按下STOP控制信号，并通过触摸开关启动按STOP信号时，向控制箱提供信号以启动检测器头的电网计数。 控制箱具有电路，用于将来自检测器头的电网计数信号和从触摸开关按下STOP信号转换为在按下STOP信号开始后按压实际停止所需时间的数字读数。