Material handling apparatus with integrated part sorter

• US 20080000816A1
• Filed: 06/29/2006
• Published: 01/03/2008
• Est. Priority Date: 06/29/2006
• Status: Active Grant

• Current Assignee: Dunkley International, Inc. (Cherry Central Cooperative, Inc.)
• Original Assignee: Dunkley International, Inc. (Cherry Central Cooperative, Inc.)
• Inventors: Kenneway, Ernest K.
• Granted Patent: US 7,669,707 B2
• Time in Patent Office: Days
• US Class Current: 209/577
• CPC Class Codes: B07C 5/02 Measures preceding sorting, e.g. arranging articles in a stream orientating sorting and transport of caps B67B3/06
• CPC Class Codes: Y10S 209/919 Rotary feed conveyor

Abstract

A material handling apparatus includes a part feeding device such as a bowl feeder with a perimeter track, a second track extending around the perimeter track, a vision inspection system, and an ejector device. The second track has a transparent floor and the vision inspection system includes a controller and at least one camera operably connected to the controller for looking through the transparent floor to identify defective parts. The ejector device is operably connected to the controller for ejecting bad ones of the received parts, the ejector device being located downstream of the cameras. A related method is also provided. The arrangement is very compact, and has a very small foot print, but can operate at speed up to or more than 4000 pieces per minute.

Claims

1. A material handling apparatus for singulating, orienting, sorting and delivering parts to a downstream location for use;

comprising;

a part feeding device having a bowl and perimeter track for singulating, orienting and delivering oriented parts from a supply of loose non-aligned parts in the bowl along the perimeter track to a first output location;

a second track with a transparent floor extending at least partially around the perimeter track, the second track being configured to receive the oriented parts from the first output location and convey the received parts across the transparent floor to a second output location; and

a vision inspection system including a controller and at least one camera operably connected to the controller, at least one of the cameras being oriented to look through the transparent floor and the controller being programmed to identify defective ones of the received parts based on information from the at least one camera.

2. The apparatus of claim 1, including an ejector device operably connected to the controller for ejecting bad ones of the received parts, the ejector device being located downstream of the cameras.

3. The apparatus of claim 1, wherein the second track operates at a higher speed of part flow and is configured to increase a space between the received parts.

4. The apparatus of claim 1, wherein the second track rotates.

5. The apparatus of claim 1, wherein the perimeter track and second track cooperate and have coordinated different speeds so that the spacing of the received parts on the second track is uniform.

6. The apparatus of claim 5, wherein the bowl comprises a vibrating bowl and includes a vibrator mechanism for vibrating the bowl to motivate the loose non-aligned parts onto the perimeter track.

7. The apparatus of claim 1, wherein the second track extends completely around perimeter track.

8. The apparatus of claim 1, wherein the second track also includes a wall that is transparent.

9. The apparatus of claim 1, wherein the entire floor is a transparent glass material.

10. The apparatus of claim 1, wherein the part feeding device, the second track, the vision inspection system and the ejector device each are configured to operate at least 1000 pieces per minute.

11. The apparatus of claim 10, wherein the part feeding device, the second track, the vision inspection system and the ejector device are each configured to operate at least 2000 pieces per minute.

12. The apparatus of claim 11, wherein the part feeding device, the second track, the vision inspection system and the ejector device are each configured to operate at least 4000 pieces per minute.

13. The apparatus of claim 1, wherein the floor is made in part of tempered glass.

14. A method of material handling for singulating, orienting, sorting and delivering parts to a downstream location for use;

comprising steps of;

providing a part feeding device having a bowl and perimeter track;

using the part feeding device to singulate, orient and deliver oriented parts from a supply of loose non-aligned parts in the bowl along the perimeter track to a first output location;

providing a second track with a transparent wall portion extending at least partially around the perimeter track;

receiving the oriented parts from the first output location and conveying the received parts across the transparent wall portion to a second output location;

providing a vision inspection system with a controller and one or more cameras operably connected to the controller;

orienting the cameras to look through the transparent wall portion and programming the controller to identify defective ones of the received parts; and

ejecting defective ones of the received parts downstream of the cameras.

15. A material handling apparatus comprising:

a bowl feeder for singulating, orienting and delivering oriented parts from a supply of loose non-aligned parts;

an inspection/sorting system attached to the bowl feeder, the system including a spinning ring with a transparent track member for carrying oriented parts around the bowl feeder and including at least one camera pointed at the transparent track member for viewing parts; and

an ejector device operably connected to a controller that interprets data from the at least one camera and that is configured to eject bad ones of the received parts based on signals from the controller.

16. A method of material handling comprising steps of:

providing a feeding device with a perimeter track;

singulating, orienting and delivering oriented parts along the perimeter track to a first output location; and

inspecting the oriented parts with a vision inspection system that directs the oriented parts along a path parallel to but outboard of the perimeter track.

17. The method defined in claim 16, wherein the method further includes providing a vision inspection system with a controller and one or more cameras operably connected to the controller;

and wherein the step of inspecting includes orienting the cameras to look through the transparent floor, and programming the controller to identify defective ones of the received parts.