Plastic injection-molded parts are produced in large quantities. Before they are packed, the plastic parts must be separated and fed to the packaging station via a conveyor rail. A reflex light barrier is taught in on the metal conveyor rail and then detects the presence of a plastic part. A flap is then opened, causing the object to fall into the packaging. The reflex light barrier detects objects regardless of their surface. This ensures that there is a plastic part in each package.
Reflex light barriers detect and control objects by evaluating the signal strength and the principle of angle measurement. Thanks to the dynamic readjustment of the switching threshold, dirt and temperature can be compensated. Teach-in enables even transparent objects with a defined background to be recognized without additional reflectors.
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