Work roll scraper for roller levelers

Information

  • Patent Application
  • 20070180879
  • Publication Number
    20070180879
  • Date Filed
    September 29, 2006
    18 years ago
  • Date Published
    August 09, 2007
    17 years ago
Abstract
A self-retaining scraping device for continuously cleaning work rolls of a roller leveler assembly has a first wall having two angled or curved portions and a straight portion extending between the angled portions; and a second wall having two angled or curved portions and a straight portion extending between the angled portions.
Description

BRIEF DESCRIPTION OF THE DRAWINGS

Further aspects of the invention will become apparent by reference to the detailed description when considered in conjunction with the Figures, wherein like reference numbers indicate like elements through the several views, and wherein:



FIG. 1 is a side elevational view of a roller leveler in accordance with one aspect of the invention;



FIG. 2 is a front elevational view of the roller leveler of FIG. 1;



FIG. 3 is a side elevational view illustrating a metal sheet traveling between opposing work rollers;



FIG. 4 is a front elevational view of a work roll scraper in accordance with a first embodiment of the invention;



FIG. 5 is a front elevational view of an “X”-shaped member of the scraper of FIG. 4;



FIG. 6 is a front elevational view of the work roll scraper of FIG. 4 installed on a back-up roll housing interposed between work rolls;



FIG. 7 is a perspective view of the work roll scraper of FIG. 4;



FIG. 8 is a perspective view of the work roll scraper of FIG. 4 installed between work rolls;



FIG. 9 is a side elevational view of a roller leveler with a work roll scraper installed according to a second embodiment of the invention;



FIG. 9A is a side elevational view illustrating the wok roll scraper of FIG. 9 in an uninstalled configuration;



FIG. 9B is a side elevational view illustrating the work roll scraper of FIG. 9 in an installed configuration;



FIG. 10 is a front elevational view of a work roll scraper in accordance with another embodiment of the invention;



FIG. 11 is a side elevational view of a work roll scraper installed between work rolls in accordance with another aspect of the invention;



FIG. 12 is a front elevational view of the work roll scraper of FIG. 11; and



FIG. 13 is a perspective view of the work roll scraper of FIG. 11 installed between work rolls.


Claims
  • 1. A roller leveler assembly comprising: a frame;a bank of upper and lower work rolls journalled in said frame via a work roll journal housing;a bank of upper and lower back-up rolls in contact with said work rolls, to support said work rolls;said work rolls perform leveling on a work product passing through a gap formed between upper and lower work rolls;said back-up rolls mounted to said roller leveler assembly via a back-up housing;a self-retaining scraping device for continuously cleaning said work rolls, comprising:a first wall having two angled portions and a straight portion extending between said angled portions;a second wall having two angled portions and a straight portion extending between said angled portions;said first wall and second wall end connected to each other via said straight portion;wherein said angled portions of said first wall extend in an opposite direction from said angled portions of said second wall; wherein said scraping device is supported on said work rolls by said angled walls contacting said work rolls.
  • 2. The roller leveler assembly of claim 1, wherein said first wall and said second wall of said scraping device together form a generally “X”-shaped conformation.
  • 3. The roller leveler assembly of claim 1, wherein said scraping device further comprising a third wall interposed between said first wall and said second wall.
  • 4. The roller leveler assembly of claim 3, further comprising a spacer bar connected to an upper surface of said third wall.
  • 5. The roller leveler assembly of claim 4, wherein said scraping device is secured to said roller leveler assembly via said spacer bar which is mounted to said work roll journal housing of said roller leveler.
  • 6. A scraping device for use with work rolls of a roller leveler assembly, comprising: a first wall having two angled portions and a straight portion extending between said angled portions;a second wall having two angled portions and a straight portion extending between said angled portions;said first wall and second wall end connected to each other via said straight portions;wherein said angled portions of said first wall extend in an opposite direction from said angled portions of said second wall.
  • 7. The scraping device of claim 6, wherein said angled portions of said first wall and said second wall extend about 34 degrees from vertical.
  • 8. The scraping device of claim 6, wherein said angled portions of said first wall and said second wall extend about 45 degrees from vertical.
  • 9. The scraping device of claim 6, wherein said first wall and said second wall are approximately 0.005 inches thick.
  • 10. The scraping device of claim 6, wherein said first wall and said second wall are joined together via spot welding.
  • 11. The scraping device of claim 6, wherein said first wall and said second wall together form a generally “X”-shaped conformation.
  • 12. The scraping device of claim 6, further comprising a third wall interposed between said first wall and said second wall.
  • 13. The scraping device of claim 12, wherein said third wall is substantially “T”-shaped.
  • 14. The scraping device of claim 12, wherein said first and second walls are connected to said third wall via fasteners.
  • 15. The scraping device of claim 12, further comprising a spacer bar connected to an upper surface of said third wall.
  • 16. The scraping device of claim 15, wherein said scraping device is secured to said roller leveler assembly via said spacer bar which is mounted to a work roll journal housing of said roller leveler.
  • 17. The scraping device of claim 6, wherein said first wall and said second wall are adapted to be installed between adjacent work rolls of said roller leveler.
  • 18. The scraping device of claim 17, wherein said first wall and said second wall each has opposing edges which contact an outer surface of said work rolls to continuously clean said work rolls.
  • 19. The scraping device of claim 17, wherein said first wall and said second wall are formed of flexible metal to bend slightly during installation between said adjacent work rolls.
  • 20. A scraping device for continuously cleaning work rolls of a roller leveler comprising: a first, curved wall; anda second, curved wall attached to said first wall, wherein said first wall and said second wall are curved in opposite directions.
  • 21. The scraper device of claim 20, wherein a curvature of said first wall and said second wall has a radius of about ⅝ inches.
  • 22. The scraper device of claim 20, wherein said first wall and said second wall each has a thickness of about 0.007 inches.
  • 23. The scraper device of claim 20, wherein said scraper device is adapted to be installed between two adjacent work rolls of said roller leveler.
  • 24. The scraper device of claim 20, wherein each of said first wall and said second wall has opposing edges which contact said work rolls to continuously clean said work rolls.
  • 25. A scraping device for continuously cleaning work rolls of a roller leveler, comprising: a first flange, a second flange opposite said first flange and a central portion extending between and connecting said first flange and said second flange, wherein said first flange comprises a first portion and a second portion, wherein said first portion is longer along a longitudinal axis of said first flange than said second portion;said second flange comprises a first portion and a second portion, wherein said first portion is longer along a longitudinal axis of said second flange than said second portion;wherein said first flange and said second flange are substantially parallel to each other, and said first flange and said second flange are substantially perpendicular to said central portion.
  • 26. The scraper device of claim 25, wherein said first flange and second flange each comprises a pair of edges for continuously cleaning adjacent work rolls of said roller leveler.
  • 27. The scraper device of claim 25, wherein said scraper device is supported on said adjacent work rolls via said first flange contacting said work rolls.
  • 28. A method of continuously cleaning work rolls of a roller leveler assembly, comprising the steps of: providing a scraper device having a central member and a pair of angled walls on opposite ends of said central member, said angled walls extending in opposite directions from each other;inserting said scraper device between adjacent work rolls of said roller leveler and slightly flexing said angled walls of said scraper device;supporting said scraper device on said adjacent work rolls of said roller leveler such that edges of said angled walls contact outer surfaces of said work rolls; andcleaning said work rolls via the edges of the angled walls scraping an outer surface of the work rolls.
Provisional Applications (1)
Number Date Country
60766691 Feb 2006 US