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APPLICATIONS

PICK & PLACE CONVEYOR SYSTEM

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Application Solution: Construct a system of two conveyors, a transfer slide and lift/gripper mechanism similar to the diagram shown. Equip each conveyor and the transfer slide mechanism with Delta S servos controlled by the Emerald EMC-2000 Motion Controller. Establish a communication link to the packaging machine so that the package count can be transferred to the Emerald Motion Controller.

An application program, developed with the Emerald Development Environment PC software creates the following sequence.

  1. Conveyor #1 (axis #1) indexes the product to be in alignment with the transfer slide and vertical air cylinder lift/gripper mechanism.
  2. The transfer slide mechanism(axis #3) moves to a position above a product on conveyor #1.
  3. The air cylinder lift mechanism extends, grips the product and retracts.
  4. The transfer mechanism (axis #3) moves to a position above conveyor #2 (axis #2).
  5. The air cylinder lift mechanism extends, releases the product and retracts.
  6. The transfer mechanism (axis #3) moves to a position above the second product on conveyor #1.
  7. The air cylinder lift mechanism extends, grips the product and retracts.
  8. The transfer mechanism (axis #3) moves to a empty position above conveyor #2 (axis #2).
  9. The air cylinder lift mechanism extends, releases the product and retracts.
  10. This process is repeated with conveyor #1 and conveyor #2 indexing to new locations in the appropriate sequence to successfully complete the 5 to 2 reorganization of the product shown in the diagram.
Additional Application Features:
  • Polling of the packaging machine to dete mine the required organization of the product on conveyor #2, i.e. 5->2, 5->3 etc.
  • Sequence and timing of the air cylinders for the lift/gripper are precisely controlled.
  • A sensor in the gripper mechanism is used to detect loss of product.
  • A special sequence recovers from loss of product on conveyor #1 to guarantee the proper product count on conveyor #2.
  • Minimum jerk motion profiles to prevent product tip over.
  • Synchronization of conveyor movements
Other Industry Applications:
  • Palletizing equipment
  • Automated warehouse
  • Part feeders
  • Stacking equipment
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