Straw presence check on beverage cartons
The straw face of the beverage carton is imaged by a side camera. Directional light separates the elongated straw shape; a carton without a straw in the expected region is removed by a pusher.
Straw presence and region coverage are sent to the PLC; a carton without a straw is separated by the pusher. The search region and decision are shown on the operator display.
- 01 Infeed
- 02 Trigger
- 03 Acquire
- 04 Analyse
- 05 Decision and separation
The product is carried into the inspection station.
- Straw presence
- —
- Region coverage
- —
Scenes are illustrative simulations; they are not customer references or performance guarantees.
Need
The transparent straw wrapper and carton print can produce similar edges. When carton orientation changes, the expected straw region must also be tracked in the image.
Solution approach
A side camera faces the surface carrying the straw; an oblique bar light highlights the straw and wrapper edges. The search region is positioned relative to the carton edges, then the presence and coverage of the elongated shape are checked.
Process steps
- 01
Infeed
The product is carried into the inspection station.
- 02
Trigger
The photo-sensor reports the product position.
- 03
Acquire
Directional light strobes; the straw face of the carton is imaged.
- 04
Analyse
The straw shape is searched in a region positioned relative to reference edges.
- 05
Decision and separation
The result is sent to the display and PLC; a non-conforming product is separated.
Related applications
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