Robotic item sortation and optimization along the vertical axis

Patent metadata

Field	Value
Publication number	US-10246258-B2
Application number	US-201615295040-A
Country	US
Kind code	B2
Filing date	Oct 17, 2016
Priority date	Oct 17, 2016
Publication date	Apr 2, 2019
Grant date	Apr 2, 2019

Abstract

Disclosed are various embodiments for robotic item sortation and optimization along the vertical axis in a conveyor-based system. A robotic system may be mounted above or adjacent to a conveyor system that moves items along a conveyor belt or similar device. Once an item is laterally diverted from the conveyor system, the robotic system may collect the item at a respective holding station and move the item along a vertical axis for placement in one of a plurality of vertically-configured item handling devices.

First claim

Therefore, the following is claimed:

1. A system, comprising:
a conveyor system configured to move a plurality of items on a conveyor belt;
a lateral diverting mechanism configured to laterally divert individual ones of the plurality of items from the conveyor belt to a respective one of a plurality of holding stations positioned along the conveyor system; and
a robotic arm mounted above or lateral to the conveyor system, the robotic arm comprising processing circuitry in data communication with a computing environment to at least:
perform a verification of one of the plurality of items at the respective one of the plurality of holding stations;
collect the one of the plurality of items at the respective one of the plurality of holding stations using an end effector; and
vertically relocate the one of the plurality of items along a vertical axis for placement in one of a plurality of vertically-configured item handling devices, wherein the plurality of vertically-configured item handling devices comprise a first vertically-configured item handling device and a second vertically-configured item handling device, the second vertically-configured item handling device having a height different than the first vertically-configured item handling device and overlapping a substantial portion of the first vertically-configured item handling device.

2. The system of claim 1 , wherein the lateral diverting mechanism is at least one of: a shoe diverting mechanism, a pop-up-steering-wheel diverting mechanism, a tilt tray diverting mechanism, a push-up arm diverting mechanism, a roller belt diverting mechanism, a cross belt diverting mechanism, a right angle transfer, a steering wheel diverting mechanism, a swing arm diverting mechanism, a pusher diverting mechanism, or a modular belt diverting mechanism.

3. The system of claim 1 , wherein the holding station comprises a level platform configured to retain the one of the plurality of items in a resting state to await collection by the robotic arm.

4. A system, comprising:
a conveyor system configured to move a plurality of items on a conveyor belt;
a plurality of vertically-configured item handling devices, wherein individual ones of the plurality of vertically-configured item handling devices have a different offset from a holding station, the plurality of vertically-configured item handling devices comprising a first vertically-configured item handling device and a second vertically-configured item handling device, wherein the second vertically-configured item handling device has a height different than the first vertically-configured item handling device and overlaps a substantial portion of the first vertically-configured item handling device; and
a robotic system mounted above or adjacent to the conveyor system, the robotic system being configured to at least:
collect at least one of the plurality of items at the holding station; and
move the at least one of the plurality of items along a vertical axis for placement in one of the plurality of vertically-configured item handling devices.

5. The system of claim 4 , wherein the holding station comprises a level platform configured to retain the at least one of the plurality of items in a resting state to await collection by the robotic system.

6. The system of claim 4 , wherein the robotic system is a robotic arm, the robotic arm being articulated and electro-mechanical.

7. The system of claim 6 , wherein:
the robotic system comprises a rail mounted above at least a portion of the conveyor system; and
the robotic system comprises a robotic arm base coupled to the rail being configured to move the robotic arm along the rail from a first position to a second position.

8. The system of claim 4 , further comprising a lateral diverting mechanism configured to laterally divert individual ones of the plurality of items from the conveyor belt to individual ones of a plurality of holding stations positioned along the conveyor system.

9. The system of claim 8 , wherein the lateral diverting mechanism is at least one of: a shoe diverting mechanism, a pop-up-steering-wheel diverting mechanism, a tilt tray diverting mechanism, a push-up arm diverting mechanism, a roller belt diverting mechanism, a cross belt diverting mechanism, a right angle transfer, a steering wheel diverting mechanism, a swing arm diverting mechanism, a pusher diverting mechanism, or a modular belt diverting mechanism.

10. The system of claim 4 , wherein the robotic system is further configured to perform a verification of one of the plurality of items at the respective one of the plurality of holding stations.

11. The system of claim 10 , wherein the verification is performed based at least in part on an identifier captured using an imaging device.

12. The system of claim 4 , wherein the robotic system is in data communication with a computing environment over a network.

13. The system of claim 12 , wherein:
the robotic system is one of a plurality of robotic systems; and
the computing environment is configured to identify the robotic system from the plurality of robotic systems and assign the robotic system to collect the at least one of the plurality of items at the respective one of the plurality of holding stations.

14. The system of claim 13 , wherein the robotic system is identified from the plurality of robotic systems based at least in part on at least one of: a location of the respective one of the plurality of holding stations, a weight of the at least one of the plurality of items, a dimension of the at least one of the plurality of items, or a speed of the conveyor system.

15. The system of claim 13 , wherein the robotic system comprises a gantry robotic arm.

16. A method, comprising:
tracking, by at least one computing device comprising at least one hardware processor, a plurality of items progressing on a conveyor system;
causing, by the at least one computing device, a lateral diverting mechanism to divert at least one of the plurality of the items from the conveyor system to a holding station; and
causing, by the at least one computing device, a robotic system in data communicating with the at least one computing device to:
collect the at least one of the plurality of items from the holding station; and
move the at least one of the plurality of items along a vertical axis for placement in one of a plurality of vertically-configured item handling devices, wherein the plurality of vertically-configured item handling devices comprises a first vertically-configured item handling device and a second vertically-configured item handling device, wherein the second vertically-configured item handling device has a height different than the first vertically-configured item handling device and overlaps a substantial portion of the first vertically-configured item handling device.

17. The method of claim 16 , further comprising configuring, by the at least one computing device, the robotic system to handle the at least one of the plurality of items based at least in part on at least one of: a weight of the at least one of the plurality of items or a dimension of the at least one of the plurality of items.

18. The method of claim 16 , further comprising causing, by the at least one computing device, the robotic system to relocate from a first position to a second position, the second position being near the holding station.

19. The method of claim 16 , wherein the holding station comprises a level platform configured to retain the at least one of the plurality of items i

Assignees

• Amazon Tech Inc

Inventors

• Lisso Gregory Karl
• Klehr Steven
• Maylone Sean
• Sivasamy Vignesh Kumar
• Uhlman Samuel Christopher

Classifications

• B65G17/00

  Conveyors having an endless traction element, e.g. a chain, transmitting movement to a continuous or substantially-continuous load-carrying surface or to a series of individual load-carriers; Endless-chain conveyors in which the chains form the load-carrying surface · CPC title

• B65G47/90

  Devices for picking-up and depositing articles or materials · CPC title

• B65G47/643 Primary

  in a vertical plane · CPC title

• B65G47/71

  the articles being discharged {or distributed} to several {distinct separate} conveyors {or to a broader conveyor lane} · CPC title

• B65G1/1373

  for fulfilling orders in warehouses · CPC title