Material Handling

Material Handling

Prevents packaging errors by reliably detecting falling objects dropped by palletizing robots

Dropped workpieces could not be detected in a timely manner

In a large number of food processing and cosmetic production facilities, palletizing robots are used instead of humans to pack products into boxes. Palletizing robots with inbuilt safety measures are responsible for improving production efficiency and eliminating the problem of labor shortages at production sites.

However, these robots are poor at handling small, light, and slippery objects which are often dropped during pickup and transportation. For some objects with particular shapes, there are cases where robot incorrectly drops several pieces out of a 100 pieces. Therefore, box packing area mat sensors can be used to detect dropped objects and reduce the risk of packages having insufficient quantities of products.

When the sensor detects a falling object, the worker usually picks it up and places it in the appropriate cardboard box. However, mat sensors have the inherent weakness of not being able to reliably detect light objects. This means that even if an object drops down, the worker may not be notified due to the mat sensor failing to be triggered. In such a case, insufficient quantities of packaged products are not discovered until the inspection process. This places a heavy burden on the person in charge of inspection.

Using laser scanners helps to detect falling objects, and provides extra safety measures