Automatic container orientation systems and methods

• US 8,903,540 B2
• Filed: 11/22/2013
• Issued: 12/02/2014
• Est. Priority Date: 11/30/2012
• Status: Active Grant

• Current Assignee: Texwrap Packaging Systems, LLC (Pro Mach Group, Inc.)
• Original Assignee: Stork Fabricators Incorporated
• Inventors: Stork, Brian R., Rio, Todd
• Primary Examiner(s): CUMBESS, YOLANDA RENEE
• Application Number:
  US14/087,084
• Publication Number:
  US 20140156060A1
• Time in Patent Office: 375 Days
• US Class Current: 700/214
• CPC Class Codes: B65B 2220/16 Packaging contents into primary and secondary packaging
• CPC Class Codes: B65B 35/56 Orientating, i.e. changing the attitude of, articles, e.g. of non-uniform cross-section
• CPC Class Codes: B65B 35/58 Turning articles by positively-acting means, e.g. to present labelled portions in uppermost position
• CPC Class Codes: B65B 53/00 Shrinking wrappers, containers, or container covers during or after packaging
• CPC Class Codes: B65B 57/10 responsive to absence, presence, abnormal feed, or misplacement of articles or materials to be packaged
• CPC Class Codes: B65G 47/244 by turning them about an axis substantially perpendicular to the conveying plane
• CPC Class Codes: G05B 19/00 Programme-control systems
• CPC Class Codes: G05B 2219/37555 Camera detects orientation, position workpiece, points of workpiece
• CPC Class Codes: G05B 2219/42222 Compare reflected image from object with reference image, adjust object
• CPC Class Codes: G05B 2219/45048 Packaging
• CPC Class Codes: G06T 7/001 using an image reference approach

Abstract

According to various aspects, exemplary embodiments are disclosed of automatic container orientation systems. Also disclosed are methods for automatically orienting containers. In an exemplary embodiment, a system for automatically orienting containers generally includes one or more cameras, a controller, and an orientation unit. The one or more cameras are configured to obtain data relating to an orientation of at least one container to be included in a package. The controller is in communication with the one or more cameras for receiving the data and is configured to use the data to determine an amount of rotation needed for the at least one container to orient the at least one container in a desired final orientation. The orientation unit is configured to rotate the at least one container by the determined amount of rotation to thereby orient the at least one container in the desired final orientation.

Claims

1. A system for automatically orienting containers, the system comprising:

one or more cameras configured to obtain data relating to an orientation of at least one container to be included in a package;

a controller in communication with the one or more cameras for receiving the data, the controller configured to use the data to determine an amount of rotation needed for the at least one container to orient the at least one container in a desired final orientation; and

an orientation unit configured to rotate the at least one container by the determined amount of rotation to thereby orient the at least one container in the desired final orientation;

wherein the at least one container comprises multiple containers to be included together in a package; and

wherein the one or more cameras are configured to obtain data relating to an orientation of one or more indicators on each container.

2. The system of claim 1, wherein the multiple containers comprise at least three containers to be included together in a package.

3. The system of claim 1, wherein the controller is configured to use the data relating to the orientation of the one or more indicators on each of the containers to determine an amount of rotation needed for each of the containers so that the one or more indicators on each of the containers are aligned and facing in a same direction.

4. The system of claim 1, wherein the orientation unit comprises a rotating device for each of the containers to be packaged together, such that each of the containers can be rotated individually.

5. The system of claim 1, further comprising:

a feed station;

a packaging station; and

a conveyor system configured to move the containers from the feed station to the one or more cameras, from the one or more cameras to the orientation unit, and from the orientation unit to the packaging station;

wherein the feed station is configured to receive the containers from a container source and place the containers on the conveyor system, and the packaging station is configured to package the containers while maintaining the desired final orientation of each of the containers.

6. The system of claim 5, wherein the feed station includes at least one screw feed controlled by a servomotor.

7. The system of claim 5, wherein the conveyor system includes at least two conveyor belts and at least one lug, the at least two conveyor belts and at least one lug configured to contact the at least one container to move the at least one container from the feed station to the one or more cameras, from the one or more cameras to the orientation unit, and from the orientation unit to the packaging station.

8. The system of claim 5, wherein the packaging station is configured to package the at least one container by shrink wrapping a film around at least a portion of the at least one container.

9. A system for automatically orienting containers, the system comprising:

one or more cameras configured to obtain data relating to an orientation of at least one container to be included in a package;

a controller in communication with the one or more cameras for receiving the data, the controller configured to use the data to determine an amount of rotation needed for the at least one container to orient the at least one container in a desired final orientation; and

an orientation unit configured to rotate the at least one container by the determined amount of rotation to thereby orient the at least one container in the desired final orientation;

wherein the at least one container comprises multiple containers to be included together in a package; and

wherein the system further comprises an image processor in communication with the one or more cameras and the controller, the image processor configured to compare image data captured by the one or more cameras with a library of image data relating to the orientation of one of the containers to determine an initial orientation of each of the containers.

10. The system of claim 9, wherein the library of image data comprises a series of multiple container sector images, each sector image representing a view of one of the containers taken from a different segment of a circumference of the container, the image processor configured to communicate a sector image number and a degree offset amount within the sector image to the controller for each of the containers, thereby indicating an amount of rotation necessary to orient each of the containers in the desired final orientation.

11. The system of claim 9, wherein the one or more cameras are configured to obtain data relating to an orientation of one or more indicators on each container.

12. A system for automatically orienting containers, the system comprising:

one or more cameras configured to obtain data relating to an orientation of at least one container to be included in a package;

a controller in communication with the one or more cameras for receiving the data, the controller configured to use the data to determine an amount of rotation needed for the at least one container to orient the at least one container in a desired final orientation; and

an orientation unit configured to rotate the at least one container by the determined amount of rotation to thereby orient the at least one container in the desired final orientation;

wherein the at least one container comprises multiple containers to be included together in a package; and

wherein the orientation unit includes wheels for rotating the containers and a carriage supporting the wheels, the carriage configured to move the wheels into contact with the containers to thereby orient each of the containers in the desired final orientation.

13. A method for automatically orienting containers in a desired final orientation for packaging, the method comprising:

obtaining data relating to an orientation of at least one container to be included in a package;

transferring the data to a controller and determining an amount of rotation for the at least one container needed to orient the at least one container in a desired final orientation; and

rotating the at least one container by the determined amount of rotation to thereby orient the at least one container in the desired final orientation;

wherein the at least one container comprises multiple containers to be included together in a package; and

wherein;

obtaining data includes obtaining data relating to an orientation of one or more indicators on each of the containers;

determining an amount of rotation includes determining an amount of rotation for each of the containers needed to orient the one or more indicators on each of the containers so that the one or more indicators on each of the containers are aligned and facing in a same direction; and

rotating the at least one container includes rotating each of the containers by the determined amount of rotation for each of the containers to thereby align the one or more indicators on each of the containers so that the one or more indicators on each of the containers are facing in the same direction.

14. The method of claim 13, wherein the multiple containers comprise at least three containers to be included together in a package.

15. The method of claim 13, further comprising:

feeding the containers from a container source to a conveyor;

moving the containers on the conveyor to a camera to obtain the data relating to the orientation of each of the containers;

moving the containers from the camera to an orientation unit to rotate each of the containers; and

packaging the containers while maintaining each of the containers in the desired final orientation.

16. A method for automatically orienting containers in a desired final orientation for packaging, the method comprising:

obtaining data relating to an orientation of at least one container to be included in a package;

transferring the data to a controller and determining an amount of rotation for the at least one container needed to orient the at least one container in a desired final orientation; and

rotating the at least one container by the determined amount of rotation to thereby orient the at least one container in the desired final orientation;

wherein the at least one container comprises multiple containers to be included together in a package;

wherein obtaining data includes receiving image data captured by one or more cameras relating to the orientation of the containers, the method further comprising;

comparing the image data captured by the one or more cameras with a library of image data relating to the orientation of one of the containers, the library of image data comprising a series of multiple container sector images, each sector image representing a view of one of the containers taken from a different segment of a circumference of the container;

determining an initial orientation of each of the containers; and

communicating a sector image number and a degree offset amount within the sector image to the controller for each of the containers, thereby indicating an amount of rotation necessary to orient each of the containers in the desired final orientation.

17. The method of claim 16, wherein:

obtaining data includes obtaining data relating to an orientation of one or more indicators on each of the containers;

determining an amount of rotation includes determining an amount of rotation for each of the containers needed to orient the one or more indicators on each of the containers so that the one or more indicators on each of the containers are aligned and facing in a same direction; and

rotating the at least one container includes rotating each of the containers by the determined amount of rotation for each of the containers to thereby align the one or more indicators on each of the containers so that the one or more indicators on each of the containers are facing in the same direction.