TH14367B - Belt for forced grinding - Google Patents

Abstract

DC60 (23/09/40) The rolling mill belt for forced rolling of paper fibers consists of a continuous base plate, a synthetic fiber core attached to at least the outer side of the continuous base plate, and a polymer resin material immersing the fiber/surface composite consisting of the continuous base plate and synthetic fiber core to a significant uniform depth. This depth may be such that the polymer resin material does not reach the base plate, or partially or completely immerses the base plate. The layer of polymer resin material is assembled on the synthetic fiber material to a predetermined thickness. Once the polymer resin material has been cured, it is polished to the desired smoothness without exposing any fibers to the surface. The penetration of the polymer resin material into the synthetic fiber core, and possibly into the base plate to a uniform depth, allows the rolling mill belt to provide a consistent pressure pulse as it passes along with the paper through the clamps in the forced rolling mill. The belt roller for forced rolling of paper fibers consists of a continuous base plate, a synthetic fiber core attached to at least the outer side of the continuous base plate, and a polymer resin material immersing the fiber/surface composite of the continuous base plate and synthetic fiber core to a significant uniform depth. This depth may be such that the polymer resin material does not reach the base plate, or it may partially or completely immerse the base plate. The layer of polymer resin material is assembled on the synthetic fiber material to a predetermined thickness. Once the polymer resin material has been cured, it is polished to the desired smoothness without exposing any fibers to the surface. The penetration of the polymer resin material into the synthetic fiber core, and possibly into the base plate to a uniform depth, allows the belt roller to provide a consistent pressure pulse as it passes along with the paper through the clamps in the forced rolling mill.

Claims (31)

1. Tumbler belts for forced tumblering of paper or fiberboard. These tumbler belts consist of a base plate in the form of a continuous outer and inner loop. A first synthetic fiber core is attached to the outer side of the base plate, and a second synthetic fiber core is attached to the inner side. The base plate, the first and second synthetic fiber cores together form an integrated fiber/surface structure. A first polymer resin is then applied to the outer side of the base plate, creating a smooth, polished surface. During polishing, no initial synthetic fiber core is exposed, allowing the first polymer resin to achieve the desired surface characteristics and uniform thickness of the tumbler belt. 2. The conveyor belt of the rolling mill as entitled in claim 1, with the aforementioned backing plate being a fabric selected from a group comprising woven, non-woven, knitted and edged fabrics. 3. The conveyor belt of the rolling mill as claimed in claim 1, with the aforementioned base plate being a compressed plate made of polymer resin material. 4. The conveyor belt of the rolling mill as claimed in claim 1, with the aforementioned base plate being a compressed mesh fabric. 5. The conveyor belt of the rolling mill as claimed in claim 1, with the aforementioned base plate being a fabric welded in a spiral pattern. 6. The conveyor belt of the rolling mill as entitled in Representation 1, whereby the aforementioned backing plate is a strip material wrapped in a spiral pattern in multiple layers, with each layer connected to the adjacent layer by a continuous seam. The aforementioned backing plate is continuous in the longitudinal direction. The strip material is selected from a group consisting of woven, non-woven, knitted and trimmed edged, extruded polymer resin sheets, and extruded mesh fabrics. 7. The conveyor belt of the rolling mill as entitled in claim 1, with the aforementioned base plate being a fabric seam that can be used on the machine. 8. The conveyor belt of the rolling mill as claimed in claim 1, whereby the aforementioned base plate is a tiered component consisting of at least two base layers. 9. The conveyor belt of the rolling mill as entitled in claim clause 8, where at least two of the aforementioned layers are the primary and secondary layers. 10. The conveyor belt of the rolling mill as entitled in claim 9, whereby the aforementioned primary layer is a continuous loop within a continuous loop formed by the aforementioned secondary layer, the aforementioned outer side of the secondary layer is the outer side of the aforementioned secondary layer, and the aforementioned primary polymer resin material immerses the aforementioned fiber/surface composite to the aforementioned outer side of the aforementioned secondary layer. 11. The rolling mill belt as entitled under claim 9, whereby the aforementioned primary layer and at least one of the aforementioned secondary layers are fabrics selected from a group of knitted, unknitted, woven, knitted and edged fabrics. 12. The conveyor belt of the rolling mill as entitled in claim clause 9, whereby the aforementioned primary layer and at least one of the aforementioned secondary layers are compressed sheets of polymer resin material. 13. The conveyor belt of the rolling mill as entitled in claim clause 9, whereby the aforementioned primary layer and at least one of the aforementioned secondary layers are compressed mesh fabric. 14. The conveyor belt of the rolling mill as entitled in claim clause 9, whereby the aforementioned primary layer and at least one of the aforementioned secondary layers are fabrics bonded together in a spiral pattern. 15. The conveyor belt of the rolling mill as entitled in claim clause 9, whereby the aforementioned primary layer and at least one aforementioned underlayment are strip material wrapped in a spiral pattern in multiple wraps, with each strip connected to its adjacent wrap by a continuous seam; the aforementioned primary layer and at least one aforementioned underlayment are continuous in the longitudinal direction; the aforementioned strip material is selected from a group consisting of woven, non-woven, knitted and edged sheets, compressed sheets of polymer resin material and compressed mesh fabric. 16. The conveyor belt of the rolling mill as entitled under claim 9, whereby the aforementioned primary layer and at least one of the aforementioned secondary layers are machine-sewn fabrics. 17. The rolling mill belt as entitled under claim 1, whereby the aforementioned synthetic fiber core is attached by needle stitching. 18. The conveyor belt of the rolling mill as entitled in claim 1, whereby the aforementioned first synthetic fiber core is attached by water binding. 19. The rolling mill belt as entitled under claim 1, whereby the aforementioned synthetic fiber core is attached by heat fusion. 20. The conveyor belt of the rolling mill as entitled in claim 1, where the first synthetic fiber core mentioned above is attached by melt-blown fibers. 21. The conveyor belt of the rolling mill as entitled in claim clause 1, whereby the aforementioned first synthetic fiber core is attached by a meltable fiber layer. 22. The rolling mill belt as entitled in claim 1, whereby the two aforementioned synthetic fiber cores are attached by needle stitching. 23. The rolling mill belt as entitled under claim 1, whereby the two aforementioned synthetic fiber cores are bonded together by water binding. 24. The rolling mill belt as entitled under claim 1, whereby the two aforementioned synthetic fiber cores are attached by heat fusion. 25. The conveyor belt of the rolling mill as entitled in claim clause 1, where the two aforementioned synthetic fiber cores are attached by melt-blown fibers. 26. The conveyor belt of the rolling mill as entitled in claim clause 1, where the two aforementioned synthetic fiber cores are attached by a meltable fiber layer. 27. The conveyor belt of the rolling mill as entitled under claim 1, whereby the first polymer resin material mentioned above is immersed in the fiber/area composite material mentioned above without reaching the base plate mentioned above. 28. The conveyor belt of the rolling mill as entitled under claim 1, whereby the first polymer resin material mentioned above is immersed in the fiber/area composite material mentioned above to a certain depth within the base plate mentioned above. 29. The conveyor belt of the rolling mill as entitled under claim 1, whereby the first polymer resin material mentioned above is thoroughly immersed in the fiber/area components mentioned above. 30. The rolling mill belt as entitled under claim 1 shall consist of a second polymer resin material forming a top inner layer of the said backing plate of the said fiber/surface composite and having a ground and polished surface such that, upon grinding and polishing, no portion of the said backing plate is exposed on the ground and polished surface, so that the second polymer resin material may be prepared to have the desired surface characteristics and the rolling mill belt may have uniform thickness. 31. The rolling mill belt, as entitled under claim 1, also consists of a second polymer resin material immersed in the aforementioned fiber/surface composite to a uniform depth. There, the aforementioned second polymer resin material forms a layer over the aforementioned second synthetic fiber core on the aforementioned inner side of the aforementioned backing plate and has a ground and polished surface, where, upon grinding and polishing, no portion of the aforementioned backing plate is exposed on the ground and polished surface, so that the aforementioned second polymer resin material can be prepared to the desired surface characteristics and the rolling mill belt can have a uniform thickness.