In a recent application (see the video at the end of the post!), a customer need to singulate randomly spaced product moving at a high rate of speed.
The product was coming out of a cleaning and drying unit in four lanes, moving at 40 parts/minute. After being singulated, the product will then entered an X-ray machine at a rate of 160 parts/minute.
Dorner merged the product using a combination of high speed sensors, servo motors and 2200 Series pacing conveyors. Two common infeed conveyors (center and right conveyors above) initially gap the product prior to each of the 4 individual servo conveyors (lanes).
Each lane uses 2 sets of photo eyes to sense product. This data is fed to a PLC which controls the servo movement to properly space the product for the merge. The merge is then completed by two vertical conveyors directing the product into a single stream.