System for cleaning molding equipment using a laser

Abstract

A system for cleaning molds within presses is disclosed wherein the system utilizes a light source including a laser to clean surfaces within the mold. The light source is aligned with an opening in the mold and light from the laser is directed onto the mold surfaces to vaporize residual material thereon to thereby clean the surfaces. The light source may be formed as a portable unit movable between different presses, or the light source may be in the form of a single laser with a plurality of light paths leading from the laser to individual presses such that light may be selectively conveyed along the light paths to clean the molds within the presses.

What is claimed is: . .1. A method of cleaning equipment associated with a molding operation comprising the steps of: 
     
        laser..!.. .3.  The method as in claim 1 wherein said light source is portable, and including the step of moving said light source from alignment with a first surface of said equipment located at a first station into alignment with a second surface of said equipment located at a second station..!.. .4. The method as in claim 1 wherein said light source comprises a single laser and a plurality light paths for conveying light from said laser to a plurality of distinct molding stations, and including the step of selectively activating said light paths to selectively clean equipment associated with each of said stations..!.. .5. The method as in claim 1 wherein said light source includes an optical fiber defining a movable output end for alignment with said surface, said optical fiber defining a flexible and movable conduit for said light and said step of aligning said light source comprises an operator holding said output end adjacent to said surface..!.. .6. The method as in claim 5 wherein a plurality of optical fibers having output ends are provided defining a plurality of light sources for cleaning equipment at a plurality of separate stations, and including the step of conveying light from a single laser to each of said stations..!.. .7. The method as in claim 6 including the step of selectively activating one of said optical fibers to clean equipment at a first station, and subsequently deactivating said one optical fiber and activating another optical fiber to clean equipment at a second station..!.. .8. The method as in claim 1 including the step of cleaning additional equipment surfaces by reflecting said light off of said surface and onto said additional surfaces..!.. .9. The method as in claim 1 wherein said step of activating said laser causes said residual material to be vaporized..!.. .10. The method as in claim 9 wherein said step of activating said laser further causes said residual material to be blown off of said surface as material underneath the material to be blown off is vaporized..!.. .11. A method of cleaning a surface comprising the steps of: providing a light source including an optical fiber and a laser;   aligning an output end of said optical fiber with said surface; and   activating said laser to cause light to pass through said optical fiber to said output end and impinge on said surface to thereby clean residual material from said surface..!.. .12. The method as in claim 11 wherein said laser is a pulsed laser..!.. .13. The method as in claim 11 wherein said optical fiber defines a flexible and movable conduit for said light and said step of aligning said output end comprises an operator holding said output end adjacent to said surface..!.. .14. The method as in claim 11 wherein a plurality of optical fibers having output ends are provided defining a plurality of light sources for cleaning surfaces at a plurality of separate stations, and including the step of conveying light from a single laser to each of said stations..!.. .15. The method as in claim 14 including the step of selectively activating one of said optical fibers to clean a surface at a first station, and subsequently deactivating said one optical fiber and activating another optical fiber to clean a surface at a   
     
     
        second station..!.. .16.  The method as in claim 11 wherein said cleaning is performed on a surface located on equipment associated with a molding operation..!.. .17. A method of cleaning equipment associated with a molding operation comprising the steps of: providing a light source including a plurality of optical fibers and a single pulsed laser, each said optical fiber having an output end located at a molding station;   aligning an output end of a first optical fiber with a first surface in a first molding station;   activating said first optical fiber to thereby clean residual material from said first surface;   aligning an output end of a second optical fiber with a second surface in a second molding station;   deactivating said first optical fiber and activating said second optical fiber to clean said second surface; and   wherein said steps of aligning said output ends of said first and second optical fibers comprises an operator holding said output ends adjacent to said first and second surfaces, respectively..!.. .18. A cleaning system for use in combination with equipment associated with a molding operation, said system comprising:   a light source including a laser;   means for aligning said light source with said equipment; and   wherein activation of said laser with said light source aligned with said equipment causes residual material attached to surfaces of said equipment to be removed..!.. .19. The system as in claim 18 wherein said laser is a pulsed laser..!.. .20. The system as in claim 18 wherein said means for aligning comprises a light pen having an end adapted to be positioned adjacent to said surfaces of said equipment, said light pen being connected to said laser through a fiber optic connection..!.. .21. The system as in claim 18 wherein said light source is formed as a portable unit for movement to locations adjacent to a plurality of molds located at different molding stations..!.. .22. A cleaning system comprising:   a light source including an optical fiber and a laser;   said optical fiber defining a flexible and movable conduit for conveying light from said laser and including an output end for alignment with a surface to be cleaned; and   wherein activation of said laser with said output end positioned in alignment with said surface causes residual material attached to said surface to be removed..!.. .23. The system as in claim 22 wherein said laser is a pulsed laser..!.. .24. The systems in claim 22 including a plurality of optical fibers having output ends located at a plurality of separate stations wherein light is conveyed from said laser through said optical fibers to perform a cleaning operation at each of said stations..!.. .25. The system as in claim 22 including molding equipment, said surface being located on said molding equipment and said output end being located adjacent to said surface..!.. .26. A cleaning system for use in combination with equipment associated with a molding operation, said system comprising:   a light source comprising a plurality of optical fibers and a pulsed laser;   said optical fibers defining flexible and movable conduits for light from said laser, each said optical fiber including an output end located at a respective molding station for alignment with a surface on said equipment to be cleaned; and   wherein activation of said laser with said output ends aligned with said surfaces causes residual material attached to said surfaces to be   
     
     
        removed..!..Iadd.27.  In a process for molding rubber articles in a mold mounted within a press in which rubber material is supplied to the mold and residual material remains in the mold after the rubber article is removed therefrom, an improved method for removing said residual material comprising: aligning with an opening in said mold a light source, said light source including a laser; and   activating said laser to cause light rays to impinge on an interior surface located inside said mold, said light rays removing said residual material from said interior surface located inside said mold. .Iaddend..Iadd.28. The method of claim 27 wherein said mold contains crevices. .Iaddend..Iadd.29. The method of claim 27 wherein said light rays vaporize at least a portion of said residual material. .Iaddend..Iadd.30. The method of claim 27 wherein said residual material is in the form of small rubber pieces. .Iaddend..Iadd.31. The method of claim 27 wherein said residual material comprises release agents. .Iaddend..Iadd.32. The method of claim 27 wherein said mold remains in said press during removal of   
     
     
        residual material therefrom. .Iaddend..Iadd.33.  The method of claim 27 wherein said residual material is removed from said mold while avoiding substantial cooling thereof. .Iaddend..Iadd.34. The method as in claim 27 including the step of removing said residual material by means of light rays reflected off said interior surface of said mold and onto additional surfaces of said mold. .Iaddend..Iadd.35. The method as in claim 27 wherein said light source is portable, and including the step of moving said light source from alignment with said opening in said mold. .Iaddend..Iadd.36. The method as in claim 27 wherein said light source comprises a single laser and a plurality of light paths for conveying light rays from said laser to a plurality of said molds, and including the step of selectively activating said light paths to selectively remove said residual material from interior surfaces located inside said molds. .Iaddend..Iadd.37. The method as in claim 27 wherein a plurality of optical fibers having output ends are provided defining a plurality of light sources for removing said residual material from interior surfaces located inside a plurality of said molds, and including the step of conveying light rays from a single laser to each of said molds. 
     
     
        .Iaddend..Iadd.38.  In a process for molding rubber articles in a plurality of molds, each said mold mounted within a press and supplied with rubber material in which residual material remains in each said mold after the rubber article is removed therefrom, an improved method for removing said residual material comprising: providing a light source including a plurality of optical fibers and a single laser, each said optical fiber having an output end located at one of said molds;   aligning an output end of a first optical fiber with an opening in a first mold;   activating said first optical fiber to cause light rays to impinge on an interior surface located inside said first mold, thereby cleaning said residual material from said interior surface located inside said first mold;   aligning an output end of a second optical fiber with an opening in a second mold; activating said second optical fiber to cause light rays to impinge on an interior surface located inside said second mold, said light rays removing said residual material from said interior surface located inside said second mold. .Iaddend..Iadd.39. The method of claim 38 wherein said light rays vaporize at least a portion of said residual material. .Iaddend..Iadd.40. A cleaning system for use in combination with a mold mounted within a press in which rubber material is supplied to the mold for molding rubber articles and residual material remains in the mold after the rubber article is removed therefrom, said system comprising:   a light source including a laser;   means for aligning said light source with an opening in said mold; and   wherein activation of said laser with said light source aligned with said opening in said mold causes light rays to impinge on an interior surface located inside said mold, said light rays removing said residual material attached to said interior surface located inside said mold. .Iaddend..Iadd.41. The system as in claim 40 wherein said mold contains crevices. .Iaddend..Iadd.42. The system as in claim 40 wherein said means for aligning comprises a light pen having an end adapted to be positioned with said opening in said mold, said light pen being connected to said laser through a fiber optic connection. .Iaddend..Iadd.43. The system as in claim 40 wherein said residual material is in the form of small rubber pieces. .Iaddend..Iadd.44. The system as in claim 40 wherein said residual material comprises release agents. .Iaddend..Iadd.45. The system as in claim 40 wherein said light rays vaporize at least a portion of said residual material. .Iaddend..Iadd.46. A cleaning system for use in combination with a plurality of molds, each said mold mounted within a press and supplied with rubber material for molding a rubber article in which residual material remains in each said mold after said rubber article is removed therefrom, said system comprising:   a light source comprising a plurality of optical fibers and a laser;   said optical fibers defining flexible and movable conduits for light rays from said laser, each said optical fiber including an output end located at a respective one of said molds for alignment with an opening in said respective one mold; and   wherein activation of said laser with said output ends aligned with said openings in said molds causes light rays to impinge on interior surfaces located inside said molds, said light rays removing said residual material attached to said interior surfaces located inside said molds.   
     
     
        .Iaddend..Iadd.47.  The system as in claim 46 wherein said light rays vaporize at least a portion of said residual material. .Iaddend.