Pneumatic sweeping system

Patent metadata

Field	Value
Publication number	US-9895724-B2
Application number	US-201414567007-A
Country	US
Kind code	B2
Filing date	Dec 11, 2014
Priority date	Dec 11, 2014
Publication date	Feb 20, 2018
Grant date	Feb 20, 2018

Abstract

A method and system for removing loose impediments from a surface in a manufacturing setting. The surface may be where a widget is processed. As the widget is processed, loose impediments may fall onto the surface. The surface may be transported to a cleaning station where at least one nozzle directs a stream of fluid onto the surface to displace the loose impediments. A container may be provided adjacent to the surface to receive the loose impediments displaced from the surface. The at least one nozzle may continuously direct the stream of fluid onto to surface so long as the surface is present at the cleaning station. When the surface is no longer present at the cleaning station, the at least one nozzle may be deactivated.

First claim

What is claimed is:

1. A method of removing loose impediments from an upwardly facing surface moving along a production line and configured to support a product element, the method comprising:
sensing a condition indicating a presence of the upwardly facing surface at a cleaning station, the cleaning station including a container that is located adjacent to the upwardly facing surface and defining an opening angled with respect to the upwardly facing surface;
activating at least one nozzle located at the cleaning station and positioned at a height above the upwardly facing surface, the at least one nozzle directing a stream of fluid from the at least one nozzle onto and across the upwardly facing surface and displacing any loose impediments from the upwardly facing surface into the container via the fluid directed across the upwardly facing surface;
determining the condition is no longer being sensed; and
deactivating the at least one nozzle.

2. The method of claim 1 , wherein the upwardly facing surface is a portion of a conveyor belt.

3. The method of claim 1 , wherein the upwardly facing surface is a surface of a pallet, and wherein the condition indicating the presence of the upwardly facing surface comprises detecting, via a position sensor, a leading edge of the pallet, and wherein determining the condition is no longer being sensed comprises detecting, via the position sensor, a trailing edge of the pallet.

4. The method of claim 1 , further comprising opening a valve associated with the at least one nozzle allowing the fluid to move from a reservoir through the at least one nozzle and directed onto the surface.

5. The method of claim 4 , wherein the valve is a control valve, and wherein the method further comprises adjusting at least one of a speed at which the fluid is directed onto and across the upwardly facing surface via the control valve, and a disbursement of the fluid onto the surface via a plume adjuster on each of the at least one nozzle.

6. The method of claim 4 wherein the valve is a control valve, and wherein the method further comprises adjusting a speed at which the fluid is directed onto and across the upwardly facing surface as a function of a speed at which the upwardly facing surface is moving through the cleaning station.

7. A system for removing loose impediments from a work station, the system comprising:
a work station having an upwardly facing surface configured to support a product element, the work station moving along a production line including a cleaning station;
the cleaning station comprising:
at least one nozzle located at the cleaning station and positioned above the work station when the work station is adjacent to the cleaning station, the at least one nozzle selectively directing fluid onto and across the upwardly facing surface;
at least one sensor positioned to detect a condition corresponding to a presence of the work station at the cleaning station; and
a container positioned at the cleaning station, the container being located adjacent to the work station when the work station is located at the cleaning station, the container defining an opening extending at an angle with respect to the upwardly facing surface of the work station; and

a controller operatively connected to the at least one sensor and the at least one nozzle, the controller configured to:
responsive to receiving data from the at least one sensor indicating the condition being detected, activating the at least one nozzle to disburse fluid onto and across the upwardly facing surface of the work station towards the container, the fluid carrying any loose impediments positioned on the upwardly facing surface to the container, the fluid and loose impediments being carried through the opening and into the container; and
responsive to receiving data from the at least one sensor indicating the condition no longer being detected, deactivating the at least one nozzle.

8. The system of claim 7 , wherein the container further comprises:
a first side located adjacent to the work station; and
a second side opposite the first side and extending above the first side.

9. The system of claim 8 , wherein the second side includes an electromagnet positioned thereon.

10. The system of claim 9 , wherein the electromagnet is operatively connected to the controller, and wherein the controller is further configured to:
responsive to receiving data from the at least one sensor indicating the condition being detected, activating the electromagnet to attract any loose impediments comprising a magnetic material.

11. The system of claim 8 , wherein the container further comprises an extension extending from the second side, the extension extending at an angle from the second side towards the first side.

12. The system of claim 11 , wherein the extension further comprises flow inducing baffles spanning at least a portion of the extension, and wherein, when the at least one nozzle is activated, the fluid carries the loose impediments positioned on the upwardly facing surface to the container, the fluid and loose impediments being carried through the opening and into the container via air flow into the container caused by the flow inducing baffles on the extension.

13. The system of claim 7 , wherein the container further comprises a drawer extendable into the container and having an upwardly facing opening.

14. The system of claim 13 , wherein the drawer further includes a basin flow baffle spanning a face of the drawer.

15. The system of claim 13 , wherein the drawer further comprises a slotted filter spanning the upwardly facing opening, the slotted filter having slots sized to permit one or more of the loose impediments to fall through the slotted filter and into the drawer while inhibiting one or more other loose impediments from falling through the slotted filter.

16. The system of claim 7 , further comprising an input receiving device configured to receive input regarding a type of loose impediment positioned on the upwardly facing surface, wherein the input receiving device is operatively connected to the controller.

17. The system of claim 16 , further comprising:
a control valve operatively connected to the at least one nozzle and the controller, the control valve configured to adjust a speed at which the fluid is directed onto and across the upwardly facing surface, and wherein the controller is configured to:
receive, from the input receiving device, the type of loose impediment and, based on the type of loose impediment, adjust the speed at which the fluid is directed onto and across the upwardly facing surface by generating one or more signals for the control valve.

18. The system of claim 16 , further comprising:
a plume adjuster operatively connected to the at least one nozzle and the controller, the plume adjuster configured to adjust a disbursement of the fluid onto and across the upwardly facing surface, and wherein the controller is configured to:
receive, from the input receiving device, the type of loose impediment and, based on the type of loose impediment, adjust the disbursement of the fluid onto and across the upwardly facing surface by generating one or more signals for the plume adjuster.

19. The system of claim 7 , wherein the work station is a portion of a conveyer belt.

20. The system of claim 7 , wherein the work station is a pallet having a leading portion and a trailing portion.

21. The system of claim 20 , wherein the condition corresponding to the presence of th

Assignees

• Toyota Eng & Mfg North America

Inventors

• Williams Dale R

Classifications

• B08B2203/0229

  Suction chambers for aspirating the sprayed liquid · CPC title

• B08B5/02 Primary

  Cleaning by the force of jets, e.g. blowing-out cavities {(airguns or nozzles per se B05B1/005)} · CPC title

• B08B3/02

  Cleaning by the force of jets or sprays · CPC title

• B23Q11/0042

  Devices for removing chips (B23Q11/02, B23Q11/0875 take precedence) · CPC title

• B08B3/00

  Cleaning by methods involving the use or presence of liquid or steam (B08B9/00 takes precedence) · CPC title