This robust vision application system is used to identify the tyres which flow through a single point in the manufacturing plant.
Tyre identification is dependant on two factors: the order of the colour bands around the tyre, and the tyre diameter.
Two Cognex In-Sight vision sensors capture both aspects. The first camera, a Cognex In-Sight 5100 is mounted two metres above a tyre positioned over a backlight, permitting measurement of the diameter from the silhouette.
The second colour camera reads the colour pattern from the tyre face using colour detection tools.
The features of the system:
- Ability to read the tyre pattern robustly and identify the pattern from many dozens of available patterns
- Only one PLC interface required as a master/slave arrangement gives control of the second camera from the one receiving triggers from the PLC
- A simple HMI allows system monitoring by the production staff
- Stand alone system which can be left unattended if required
- Security prevents access to configuration items by the operator