CPC H01L 21/67271 (2013.01) [B07C 5/02 (2013.01); B07C 5/34 (2013.01); B65G 47/90 (2013.01); B65G 2203/00 (2013.01)] | 3 Claims |
1. A unit sorting system comprising:
a net table for receiving units and a unit lifter for depositing said units on the net table;
the net table having a first and second zone;
wherein the unit lifter is arranged to engage a batch of units and then deposit a first half of the batch to the first zone and deposit a second half of the batch to the second zone and each half batch of units is deposited in a checker board pattern in the respective zones; said checker board pattern configured to provide clearance about each of the units so as to avoid interference when a unit picker engages the units;
a unit picker assembly including said unit picker, wherein said unit picker is arranged to engage at least one of said units from the net table;
said net table including a buffer row;
a control system arranged to determine a number of shortfall units for an offloading row;
said unit picker arranged to engage the number of shortfall units from a periphery of the batch and place in the buffer row;
a gang pusher arranged to push the number of shortfall units in the buffer row into the offloading row.
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