Environmentally checkweigher – integrating sustainable development into advanced technology

Food and manufacturers should make their suppliers of automatic checkweighing equipment bear the responsibility for these problems. Advanced weighing technology proves to the outside world that it not only has advantages in terms of sustainable development, but also a universal energy efficiency driver. An automatic checkweigher equipped with inspection technology can detect defective barcodes or packaging. It is the best equipment for generating manufacturing statistics and documents. By saving resources and materials, minimizing energy consumption, reducing costs, ensuring long-term operation, and broadly improving the overall efficiency of the production system, checkweighers play an important role in supporting the concept of sustainable development. There are many reasonable cases that can be used for reference, such as:

•Feedback control of automatic checkweigher in filling:

If necessary, the filling head can be automatically readjusted according to specific product requirements. Because of this, the checkweigher can control the connected filling system. The average weight is calculated regularly in the continuous process, and once it deviates from the nominal weight, a signal is sent to the filling system that adjusts the filling quantity to obtain the best performance. In terms of sustainable development, it provides production reliability, which is equivalent to reducing product waste and avoiding material loss.

•Production filling head test:

The filling head test allows the operator to grasp the performance information, namely: the filling performance of a single filling head in a multi-head filling system. The program records the weight of each product over a period of time and distributes it to the corresponding filling head. After calculating the average weight and the maximum and minimum weight of each filling head, the user can optimize the performance by adjusting the individual filling head (if necessary). Manufacturers will again benefit from production reliability, avoiding ‘product waste’ and material loss.

• Offset detection:

Misplacement or deviation of the product from the transportation direction may cause more serious problems in the production process. Offset detection is a preventive measure that can automatically detect and eliminate the identified products, thereby eliminating the risk of product obstacles or possible damage to the downstream machinery of the production line. Because of this, avoiding unplanned downtime and maintenance can increase OEE and productivity.

• Smooth product changes:

Environmental influences (such as changes in temperature or humidity) may sometimes change the characteristics of the product in the production process, resulting in a change in weight. The software called ‘sliding limit’ (sometimes also called ‘average tracking’) can be used to record the gradually accumulated moisture (ie weight) to the automatic checkweigher, so as to avoid mistakenly rejecting good products due to these changes. Avoiding the impact of these changes can ensure increased productivity and strengthen sustainable development.

•Extra weight zone:

A large number of applications and manufacturing processes require far more than these three standard weight divisions that are commonly used for classification. In fact, it can be expanded to four additional partitions through certain techniques. Each partition has its own counter (product count) and can be assigned to its own operations. This facilitates more detailed weight classification and subsequent sorting of products. The technology of improving production efficiency and avoiding material loss is added to the growing sustainable development.

•Material use and product design: all product testing equipment (including automatic checkweighers) require regular maintenance