Automatic painting on pliable items

Patent metadata

Field	Value
Publication number	US-9656289-B2
Application number	US-201313801172-A
Country	US
Kind code	B2
Filing date	Mar 13, 2013
Priority date	Mar 13, 2013
Publication date	May 23, 2017
Grant date	May 23, 2017

Abstract

Aspects relate to systems and methods for dispensing paint uniformly on pliable items. The system comprises at least one paint application device having at least one nozzle, at least one infrared heating unit, and a conveyance mechanism. Other aspects of the system will also comprise a mask exchanger, a mask cleaner, and/or at least one base jig. The base jig retains a masked pliable item having exposed and covered portions. The base jig moves on a conveyance mechanism through a series of paint application devices and infrared heating units. Each paint application device dispenses a thin layer of paint on the exposed portions of the masked pliable item and each infrared heating unit heats the thin layer of paint to create a solid base for a next layer of paint.

First claim

The invention claimed is:

1. A system for automated painting of pliable items comprising:
a conveyance mechanism that conveys a pliable item through the system;
a mask exchanger located on the conveyance mechanism that contains a plurality of masks, wherein each mask of the plurality of masks having a geometry that covers a first portion of the pliable item to avoid painting the first portion and exposes a second portion of the pliable item for painting, the plurality of masks of having similar geometries but covering and exposing different amounts of the pliable item;
a first paint application device that receives a masked pliable item on the conveyance mechanism, wherein the masked pliable item has the first portion obscured by a mask and the second portion exposed by the mask for painting, the at least a first paint application device having at least one nozzle that dispenses a coat of paint over the masked pliable item, such that paint does not reach the first portion of the pliable item but does reach the second portion of the pliable item exposed by the mask; and
a first infrared heating unit that receives the painted masked pliable item and the mask on the conveyance mechanism and, when activated, the at least a first infrared heating unit operable to emit infrared wavelength electromagnetic radiation upon the coat of paint on the second portion of the pliable item exposed by the mask, wherein the wavelength of the infrared wavelength electromagnetic radiation is selected to match absorption properties of the coat of paint;
at least a second paint application device that receives the painted masked pliable item and the mask on the conveyance mechanism from the first infrared heating unit; and
at least a second infrared heating unit that receives the painted masked pliable item and the mask on the conveyance mechanism from the at least second paint application device.

2. The system of claim 1 , wherein the at least a first paint application device comprises a plurality of paint application devices; and
wherein the at least a first infrared heating unit comprises a plurality of infrared heating units.

3. The system of claim 1 , wherein the plurality of masks contained in the mask exchanger comprise masks having different configurations of covered and exposed portions.

4. The system of claim 1 , further comprising a base jig that retains the pliable item in an extended arrangement.

5. The system of claim 1 , wherein the at least a first paint application device further comprises a first pipe delivering a first color to a first nozzle and a second pipe delivering a second color to a second nozzle.

6. The system of claim 5 , wherein the first nozzle and the second nozzle are capable of dispensing paint at the same time either in tandem or independently.

7. The system of claim 1 , wherein the at least a first infrared heating unit is configured to adjust a heating area according to a size of the pliable item.

8. The system of claim 1 , further comprising a mask cleaner that cleans the mask after the system has completed dispensing paint on and heating the masked pliable item and before the mask is returned to the mask exchanger.

9. A system for automated painting of pliable items comprising:
a base jig that retains a pliable item in an extended arrangement;
a mask that covers a first portion of the pliable item retained by the base jig to avoid painting the first portion and exposes a second portion of the pliable item for painting;
a conveyance mechanism that moves a plurality of base jigs retaining pliable items through the system;
a first paint application device that receives the base jig retaining the masked pliable item on the conveyance mechanism, wherein the masked pliable item has the first portion obscured by a mask and the second portion exposed by the mask for painting, the at least a first paint application device having at least one nozzle that dispenses a coat of paint on the second portion of the pliable item retained by the base jig and exposed by the mask;
a first infrared heating unit that receives the base jig retaining the masked and painted pliable item from the conveyance mechanism and, when activated, emits infrared wavelength electromagnetic radiation upon the coat of paint on the second portion of the pliable item retained by the base jig and exposed by the mask, wherein the wavelength of the infrared wavelength electromagnetic radiation is selected to match absorption properties of the coat of paint;
at least a second paint application device that receives the painted masked pliable item and the mask on the conveyance mechanism from the first infrared heating unit; and
at least a second infrared heating unit that receives the painted masked pliable item and the mask on the conveyance mechanism from the at least second paint application device.

10. The system of claim 9 , wherein the size of the base jig is commensurate with the size of the pliable item.

11. The system of claim 9 , wherein the size of the mask is commensurate with the size of the pliable item.

12. The system of claim 4 , wherein a size of the mask is commensurate with the size of the base jig.

13. The system of claim 4 , wherein the base jig is collapsible or expandable.

14. The system of claim 4 , wherein the base jig is elevated above the conveyance mechanism.

15. The system of claim 9 , wherein a size of the mask is commensurate with the size of the base jig.

Assignees

• Nike Inc

Inventors

• Wang Guo-Chang
• Regan Patrick Conall
• Wu Shih-Yuan
• Lee Kuo-Hung
• Chang Wen-Ru

Classifications

• Y02P70/36

  Cross-Sectional Technologies · mapped topic

• B05C21/005 Primary

  Masking devices (stencils B05C17/06; masking devices for which the means for applying liquids or other fluent material is spraying or is not important B05B12/20) · CPC title

• B05C17/06

  Stencils (B05C17/04 takes precedence; stencils used in connection with printing plates or foils B41N1/24; drawing accessories B43L13/00) · CPC title

• B41F15/00

  Screen printers · CPC title

• B05B13/0285

  Stands for supporting individual articles to be sprayed, e.g. doors, vehicle body parts · CPC title