Common fault inspection of powder quantitative packaging machine
This powder quantitative packaging machine produced by Kenwei company often mentions some common failure problems during the use of customers. According to customer feedback, after encountering these problems, it feels very difficult. I don’t know how to troubleshoot the failure. If you are waiting for our After-sales masters used to delay production easily. Therefore, if you encounter some common faults, as long as you can master some troubleshooting methods, you can quickly resume work. Let the editor of Kenwei interpret the common faults and inspection methods encountered in life for you. We at Kenwei are willing to share these common sense with you. Powder Quantitative Packaging Machine Prototype Display: Powder Quantitative Packaging Machine The following eight items are the eight common faults, inspection methods and cause analysis summarized by Kenwei Xiaobian for you. Please read the following text carefully. 1. The setting pulse cannot be transmitted to the electrical control cabinet or the material is not cut, which may be caused by the high sensitivity of the photoelectric switch or being blocked. At this time, please adjust the sensitivity of the photoelectric switch to a suitable position or remove the blocking object. 2. The number of pulses increases, but the actual weight decreases. After feeding, the actual weight is out of tolerance. This is caused by the large difference in the material level in the hopper. After adjusting a few bags, it can return to normal. Therefore, it is necessary to reasonably control the material level in the hopper (manual feeding) or adjust the number of preset bags (automatic feeding). 3. If the zero point of the calibration scale is unstable (zero drift), there may be a large airflow (such as wind, fan, air conditioner) or vibration source nearby; in addition, if the ambient humidity is high and the circuit board is damp, this phenomenon will also occur. At this time, please carefully remove the electronic weighercasing, and use a hair dryer to drive away the moisture. Note: the hair dryer should not be too close to the circuit board, and should not be heated for a long time in a certain place to drive away moisture, so as not to damage the components. 4. If the screw does not rotate (that is, the stepping motor is blocked) or the measurement is good or bad, it may be that ① there is debris in the material causing excessive resistance or the material cup is eccentric. In this case, please turn off the machine. Remove the material cup, remove debris or adjust the position of the material cup. ②The operator pushes the bottom of the container against the outlet of the material cup and changes the operation method. 5. If the measurement is not accurate after changing the packaging specifications or materials, it may be that ① the position of the stirrer scraper is not suitable, and it needs to be adjusted so that the lower end of the scraper is about 10-15mm away from the spiral. ②If there is leakage after filling, add anti-leakage net. 6. The stirring motor does not run: First, it is due to the tripping of the thermal overload relay. At this time, open the electrical control cabinet and you can see that the thermal overload relay trip indicator rod (green) is pushed out, (there is no trip indicator during automatic reset), press the reset button (blue) by hand, and the trip indicator rod retracts ,Back to normal. The reason for the failure is that the load of the stirring motor is too large or the vibration is caused by the shutdown. The second is the lack of power supply. 7. The stepper motor runs abnormally or does not run. First, the grid voltage fluctuates too much, the drive power alarm light is on, and the drive power is self-locking. The second is that the operating frequency may be too high, causing the stepper motor to lose steps. 8. If the power supply voltage is too low, the following faults will occur: (1) The driving power supply is self-locking. (2) The weight of the calibration weigheris unstable. (3) The calibration weighershows chaos. (4) The stepper motor is out of step, and the drive power alarms.
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