Multi-output seed sorting by silhouette size
Seeds arrive individually from a channel in front of a backlight. Silhouette size and axis are measured and accepted size grades become output addresses; an air jet routes small and non-conforming seeds to a separate bin.
Measured size, grade and trigger position are linked to an output address in the PLC. Out-of-grade seeds are separated; numbers are illustrative and acceptance limits are set during sample and process validation.
- 01 Infeed
- 02 Trigger and acquire
- 03 Analyse
- 04 Class and position
- 05 Controlled sorting
The seed enters the singulation chute from the hopper.
- Accepted class
- —
- Geometry match
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- Target output
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Scenes are illustrative simulations; they are not customer references or performance guarantees.
Need
Seed orientation and natural shape vary; overlapping products can appear larger than their actual size. Gauging must follow the silhouette and fitted major axis, with overlaps kept separate.
Solution approach
A feed chute presents an individual seed to the backlight. A side camera extracts major axis and length from the silhouette; calibration assigns an illustrative size grade. Flight position is tracked from the trigger and an addressable air jet directs the seed to its output.
Process steps
- 01
Infeed
The seed enters the singulation chute from the hopper.
- 02
Trigger and acquire
The backlight forms a silhouette for the side camera.
- 03
Analyse
The major axis and contour length are calculated.
- 04
Class and position
Size grade and jet address are linked to flight position.
- 05
Controlled sorting
The addressed jet directs the seed into its target bin.
Related applications
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