The phenomenon of filling and stoppering machine appears, after the end of *, and always a group of four heads (or five heads) are simultaneously filled, it is sure to receive the secondary filling start signal, from the display, there is " Running "display. Because the device does not detect the start signal during the filling process, it indicates that another start signal is received at the end of the filling. Since it does not appear every time, it indicates an interference signal. Why it does not appear in the stationary period, and the probability of occurrence in slow filling is high. On-site observation, it is found that the time when the start signal light on the PLC is brighter becomes shorter as the filling speed increases, and the slower and longer. It indicates that the closer the start time of the start signal is to the time of lag filling, the more likely the secondary filling phenomenon will occur. That is to say, the start signal disappears on our control board and is susceptible to interference signals, causing a secondary trigger. Conclusion, the start signal length + interference signal is easy to cause repeated filling.

The solution, because the interference signal pulse frequency is higher, it is possible to add anti-interference measures on the start line, but the interference signal cannot be predicted and determined. Extend the period of time at the end of each filling and then perform the next inspection, avoiding the unstable period at the end of the previous start signal, but it may bring about the drawbacks that cannot be achieved by fast filling. The PLC sends a short-time start signal (such as 20ms), so no matter what kind of filling, after the end, the start signal will always enter a stable period, so that the control circuit is not easily affected by the interference signal. This is the fundamental solution.

Filling and stoppering machine inspection of the fiber is not sensitive, there are individual leak detection signals that cause the peristaltic pump to not fill. Solution: Adjust the detection fiber or replace it with a new one. The filling setting parameters are not set. Exceeding the normal working range will cause the peristaltic pump to not work. Treatment method: Set the parameters for filling according to requirements. There is a leak in the silicone tube, the peristaltic pump has been working, and the liquid has not been applied. Treatment method: Check the leaking part of the pipeline and replace the new silicone tube. There is a problem with the electrical control program, which sometimes results in no filling. Treatment method: Modify the electrical control program. The suction port is poorly sealed, the liquid outlet is poorly sealed, the silicone tube is poorly sealed, the installation number is incorrect, and the silicone tube wall is too thin. method

Check the silicone tube pad and the silicone tube at the liquid suction end. Is it sealed? Check the silicone tube pad and silicone tube at the liquid outlet for sealing. Replace the new silicone tube and re-install it according to the factory matching number.