What are the factors that affect the weighing result of the checkweigher

On the processing production line of the production workshop, sometimes we will find that the weighing result of the checkweigher is suddenly inaccurate, and then re-weighing will find that there will be a large error, which does not meet the parting requirements we want. Not only does it affect the pass rate of production, but if leaving the factory also affects the company’s reputation, how can we solve these? One: See whether the measured object has changed. Generally, the physical characteristics of the measured object may affect the accuracy of the checkweighing. For example, if the length, width, and height of the measured object change, the position of the center of gravity after the automatic weighing will be different. The change of the center of gravity exceeds the allowable error range of the checkweighing table, which will definitely cause the deviation of the inspection result. Therefore, the tested objects of different specifications, especially the varieties that will bring deviation, should be set independently when setting the checkweighing parameter formula. Two: Check whether the checkweigher over-checking speed is too fast. For the same object to be checked, the faster it runs on the checkweighing line, the lower the checkweighing accuracy will be. Therefore, setting an appropriate running speed can effectively improve the system operation. The stability and checkweighing accuracy. Three: See if there is any airflow effect on the production line. Checkweighers are often of g-level accuracy. Airflow disturbances caused by fans, air conditioners, and ventilators will all affect the checkweigher. It is a good way to install a windshield for the checkweighing testing organization or to turn off the fan at the checkweighing testing machine. Four: Check whether the checkweigher machine is placed smoothly, and whether there is a large mechanical vibration in the surrounding environment. When the checkweigher machine is running, it must be stable, otherwise it will seriously affect the accuracy of the checkweighing test. Therefore, when installing the checkweigher, we must With the help of a spirit level, repeated adjustments to ensure the stability of the scale. During operation, whether there are large mechanical vibrations around will also affect the accuracy of the checkweighing. Although our measurement system has done a good software and hardware treatment, it can effectively filter out part of the impact of vibration, but the installation environment of the checkweigher machine It is still necessary to avoid vibration sources as much as possible. Five: Check whether the equipment use environment exceeds the allowable range. Temperature, humidity, and electrical environment are not up to standard. We are usually not easily aware of these indicators, and they are also several inducements that lead to inaccurate checkweighing results. In the final analysis, it is the impact of the environment that makes the equipment not normal. Operation, resulting in inaccurate checkweigh results. Six: Check whether the checkweigher is used over the range. Each checkweigher has its own checkweighing range. If it exceeds this range, the accuracy of the checkweighing is insufficient, and the sensor components inside the checkweigher will be damaged. Therefore, when using the checkweigher, be sure to clarify the weighing range of the checkweigher so that the checkweigher can work within a suitable range. In fact, the reasons that affect the weighing results of the checkweigher are nothing more than three categories: the scale itself, the object to be measured, and the environment in which it is used. As long as you master the method, analyze it in detail, and do not rush or make adjustments when you encounter problems, the problems can be solved quickly in the end.

Guangdong Kenwei Intellectualized Machinery Co.,LTD. thinks that that firms can avoid the artificial choice between quantitative and qualitative risk management, allowing both to play important roles in surfacing and assessing risks.

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But we do think that reckoning with supply chains of weigher is a really important step. Even super simple switches in material, or sourcing, or shipping, or worker benefits seems like good place to start.