Various products are conveyed into a grinding machine on a conveyor belt. As they move, the parts have to be detected and counted so that the machine can make the correct adjustments for grinding and deburring.
The parts running on the conveyor belt are detected and counted by two rows of inductive proximity switches. As a result, the machine can make the specific adjustments for grinding and deburring. There is a continuous oil film on the conveyor belt in which the products are sometimes floating, and therefore detection is complicated and the inductive proximity switches need a large switching distance.