Packaging scale action is not in place and the

Recently, I encountered some troubles when using packaging scales. Fortunately, there are some minor faults. You can solve them properly with a little adjustment. Although the problem of the packaging scale is small, if it can not be eliminated in time, it may have a great impact, so it is necessary to fully grasp the skills. 之一 One of the common problems is that the pneumatic actuator of the packaging scale is stuck and the action is not in place. Analysis proves that this is caused by the high moisture content in the compressed air during the packaging process. In this case, it is necessary to replace the engineering molecular sieve in the packaging scale and drain the gas source triplet regularly. At the same time, don't forget to add grease to the actuator regularly. If the solenoid valve of the packaging scale fails, it will cause the PLC signal output of the equipment, the solenoid valve body will stagnate, and the actuator will not operate. This also reminds the users again that it is necessary to regularly check the operation of the solenoid valve in the packaging scale, and timely disassemble and clean the valve body and add grease. Another problem is that when the start button of the packaging scale is pressed, the large and small material doors cannot be opened, and the feeding cannot be performed. The analysis proves that the reason for this phenomenon is that the packaging scale is not used for a long time, and there are still a certain number of finished products in the hopper, which causes this phenomenon. In a similar situation, the first step is to clear the hopper of the packaging scale, and then clear the meter value to zero. In order to avoid the recurrence of this phenomenon, if the packaging scale is not used for a long time, it is necessary to clear the hopper in time and keep the empty state. It is also a problem about the packing door of the scale. Although the door cannot be opened, the display of the meter is normal at this time. After careful inspection, there is a problem with the power supply of the solenoid valve controlling the door. Corrosion of the dust on the wiring terminals caused poor contact of the power supply circuit of the solenoid valve. Such problems can be solved by reprocessing the wiring.