Article feed system for aligning and singulating articles

Patent metadata

Field	Value
Publication number	US-9511950-B2
Application number	US-201113047418-A
Country	US
Kind code	B2
Filing date	Mar 14, 2011
Priority date	Mar 14, 2011
Publication date	Dec 6, 2016
Grant date	Dec 6, 2016

Abstract

An article feed system for aligning and singulating incoming articles includes a rotatable upper rim surface and an article delivery device that delivers articles received by the article delivery device to the upper rim surface. A drive system is operatively connected to the outer bowl that rotates the outer bowl. A guide wall extends upwardly above the upper rim surface that guides the articles travelling along the upper rim surface toward an exit opening in the guide wall. A vertically oriented article engaging-type conveyor is at the exit opening in the guide wall. The vertically oriented article engaging-type conveyor includes a moving article engaging surface that is exposed to the exit opening in the guide wall for receiving the articles when they exit the exit opening.

First claim

What is claimed is:

1. A centrifugal article feed system for orienting and aligning incoming articles, the centrifugal article feed system comprising:
an outer bowl having an upper rim surface;
an inner disk disposed within the outer bowl and extending at an incline from a lower portion of the outer bowl upwardly adjacent the upper rim surface for delivering articles from the lower portion of the outer bowl upwardly to the upper rim surface;
a drive system operatively connected to the outer bowl and the inner disk that rotates the outer bowl and the inner disk;
a guide wall extending upwardly above the upper rim surface that guides the articles travelling along the upper rim surface toward an end of the guide wall; and
a vertically oriented article engaging-type conveyor belt that directly receives the articles as the articles pass the end of the guide wall;
wherein a distance between the guide wall and an inner edge of the upper rim surface is substantially constant over an article guide distance along which the articles travel on the upper rim surface.

2. The centrifugal article feed system of claim 1 , wherein the drive system is operatively connected to the outer bowl and the inner disk such that the outer bowl and the inner disk rotate at different speeds or at the same speed during operation.

3. The centrifugal article feed system of claim 1 further comprising an article control system comprising a plurality of nozzles arranged and configured to deliver pulses of air to create a single file stream of articles by removing excess articles from the upper rim surface.

4. The centrifugal article feed system of claim 1 , wherein the engaging-type conveyor is a vertically oriented vacuum conveyor at the end of the guide wall that provides a conveyor transfer path that is substantially tangential to a periphery of the outer bowl at the upper rim surface, the vertically oriented vacuum conveyor comprising a belt including a series of openings through which air is drawn through the belt.

5. The centrifugal article feed system of claim 4 further comprising a horizontal product conveyor that receives articles from the vertically oriented vacuum conveyor.

6. A method of aligning and orienting articles using a centrifugal article feed system comprising an outer bowl having an upper rim surface and an inner disk disposed within the outer bowl and extending at an incline from a lower portion of the outer bowl upwardly adjacent the upper rim surface, the method comprising:
rotating the outer bowl and the inner disk disposed within the outer bowl;
moving articles fed to the article feed system along the inner disk from the lower portion of the outer bowl upwardly to the upper rim surface;
transferring the articles from the inner disk to the upper rim surface;
guiding the articles as the articles travel with the upper rim surface using a guide wall that extends upwardly above the upper rim surface; and
directly transferring the articles from the upper rim surface through an exit opening in the guide wall to a vertically oriented vacuum conveyor belt providing a transfer path that is substantially tangential to a periphery of the outer bowl at the upper rim surface.

7. The method of claim 6 comprising rotating the outer bowl and the inner disk at different speeds or at the same speed.

8. The method of claim 6 further comprising removing excess articles from the upper rim surface using an article control system comprising a plurality of nozzles arranged and configured to deliver pulses of air creating a single file stream of articles.

9. The method of claim 6 further comprising drawing articles toward a vertically oriented conveying surface of the vertically oriented vacuum conveyor using negative pressure provided by the vertically oriented vacuum conveyor.

10. The method of claim 6 , wherein the articles are wrapped tampons.

Assignees

• Papsdorf Clifford Theodore
• Mers-Kelly Michael John
• Richards Christopher Michael
• Procter & Gamble

Inventors

• Papsdorf Clifford Theodore
• Mers-Kelly Michael John
• Richards Christopher Michael

Classifications

• B65G21/2072

  Laterial guidance means · CPC title

• B65G47/1485

  using suction or magnetic forces · CPC title

• B65G47/1457 Primary

  Rotating movement in the plane of the rotating part · CPC title

• B65G47/1442

  by means of movement of the bottom or a part of the wall of the container (devices using suction or magnetic forces B65G47/1485) · CPC title

• B65G47/1435 Primary

  using the centrifugal effect to arrange or orientate the articles · CPC title