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Reject Check of Flat Packages on Dynamic Checkweighers Using Retro-Reflex Sensors with Light Band

Before the cartoning process, goods in the food industry must undergo quality control on dynamic checkweighers. If they do not meet the quality standards, they are transported to ejection containers via conveyor belts. Ejection monitoring is carried out between the conveyor belt and the container by a retro-reflex sensor with light band. Thanks to the homogeneous light band, flat objects are also detected from the front edge. The dynamic readjustment of the switching threshold ensures that the objects are reliably detected in the event of increasing contamination.

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Retro-Reflex Sensors with Light Band

Retro-reflex sensors with light band detect objects with variable edges, shapes and sizes. Thanks to the continuous, homogeneous laser light band, the sensor monitors a much larger area than a light barrier with a dot-shaped light spot. The light band can also detect small or translucent parts.

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