The company LEKO-Verpackungstechnik GmbH in Murnau designs and builds special machinery for confectionery technology. These special machines are designed for the isolation, packaging and boxing of small chocolate bars and pieces. The task of this system is to combine individual chocolate pieces into layers and then insert them into various vending boxes. During implementation two chocolate varieties (Napolitanis and alcohol-filled chocolates) and several vending box formats must be taken into account.
Via five sorting pots the chocolates are moved into the correct position and deposited in the correct orientation onto a collection conveyor. The jamming control of the sorting pots is controlled by reflective light barriers. The 180° rotation and the counting are triggered via light sensors with background light elimination and a fixed sensor distance. The reference position of the servo-motor axes is determined via inductive proximity switches.
The reference position of the servo axes is captured by the proximity switches NBB2-8GM40-E2-V3. This is a small, affordable inductive proximity switch with an increased switching distance and M8 x 1 connector.
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