Conveyor belt with spiral wire mesh
By using rectangular or flat-shaped wire mesh in the belt row of wire belts, the problems of poor heat transfer, insufficient support and short wear life of traditional wire belts are solved, and better heat transfer, better support and longer wear life are achieved.
Patent Information
- Application Number
- CN202380070321.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Priority Date
- 2022-11-09
- Filing Date
- 2023-10-23
- Publication Date
- 2025-05-13
AI Technical Summary
During the transportation process, traditional wire belts have poor heat transfer to the product, insufficient support for heavy products, and small contact area between the wire and the wear-resistant strip, resulting in short wear life.
A plurality of belt rows are adopted, each belt row is provided with a tension link at the first and second outer sides. The wire mesh is composed of rectangular or flat-shaped metal wires. The wire is spirally wound around the pin rod at the first and second ends of the belt row to form a ring with a flat outer surface, increasing the contact area with the product and the wear-resistant bar.
It improves heat transfer effect, provides better support for heavy products, extends the wear life of the wire, and improves the overall conveying efficiency.
Smart Images
Figure CN119998214A_ABST
Abstract
Description
Background Art
[0001] The present invention relates generally to power driven conveyors and, more particularly, to metal conveyor belts having wound wire article support mesh between tension links.
[0002] Wire belts are commonly used as cleanable conveyor belts. Conventional wire belts consist of a series of belt rows joined end to end by pins to form a continuous belt. Tension links at the opposite outer sides of each row flank the inner article support wire mesh. The thick tension links bear nearly all of the belt tension as the belt advances. Because the inner article support section does not have to bear belt tension, it can be made of thin round wire wound helically around pins at the opposite ends of each row to provide significant open area for airflow or drainage.
[0003] But thin round wire presents a single line of contact area to the product being conveyed. The result is poor heat transfer to or from the conveyed product and little support for heavy conveyed products. Also, the thinness of the round wire means that it has less contact area with the carryway wear strips, which can shorten the life of the wire. Summary of the invention
[0004] One form of a conveyor belt embodying features of the present invention includes a plurality of belt rows extending in width from a first outer side to a second outer side and in a conveying direction from a first end to a second end. Each belt row includes a first tension link at the first outer side and a second tension link at the second outer side. The tension link has a first rod hole at the first end and a second rod hole at the second end. An article support section between the first and second tension links extends from the first end to the second end of the belt row. The first rod holes of the first and second tension links of each belt row are aligned with the second rod holes of the first and second tension links of the adjacent belt row. A pin extends through the aligned first and second rod holes and the first and second ends of the article support sections of the adjacent belt rows to join the belt rows together at an articulated joint between the adjacent belt rows. The article support section includes a wire that is helically wound around the pin at the first and second ends of the belt row between the first and second tension links to form a loop having a flat outer surface or side surface.
[0005] One form of wire mesh for conveyor belts includes wires wound helically around pins at first and second ends of the belt row, forming a loop having a flat outer surface.
[0006] Another form of wire mesh includes wire helically wound around a pin at the first and second ends of the belt row to form a loop having a convexly curved outer surface and a minor axis intersecting the convexly curved outer surface and a longer major axis. BRIEF DESCRIPTION OF THE DRAWINGS
[0007] Figure 1 A portion of a conveyor belt embodying features of the present invention is shown.
[0008] Figures 2A-2D is instead of Figure 1 Enlarged cross-sections of rectangular wire, triangular, trapezoidal, hexagonal and truncated curved wire.
[0009] Figure 3 yes Figure 1 Isometric view of the interior section of a row of conveyor belts.
[0010] Figure 4 Another form of conveyor belt is shown with the inner section having a convex top.
[0011] Figure 5A and 5B It can be used for Figure 1 Magnified cross section of the oval and stadium-shaped wires in the wire mesh of a conveyor belt. DETAILED DESCRIPTION
[0012] Figure 1 One form of a portion of a conveyor belt embodying features of the present invention is depicted. A metal belt 10 is constructed of a series of belt rows 12 connected end to end by steel pins 14. Each belt row 12 extends in width from a first outer side 16 to an opposite second outer side 17 and from a first end 20 to a second end 21 in a conveying direction 18. Each belt row 12 has a tension link 22 at each outer side 16, 17. The tension link 22 has a first rod hole 24 at the first end 20 of the row 12 and a second rod hole 25 at the second end 21. The first rod hole 24 of the belt row 12 is aligned with the second rod hole 25 of the adjacent row. The pins 14 are received in the aligned rod holes 24, 25 to join the adjacent rows 12 together at an articulation joint 26 where the belt 10 can be articulated. One or both of the rod holes 24, 25 can be elongated in the conveying direction 18 to allow the belt 10 to turn smoothly. One or both ends of the pin rod 14 may terminate in an end cap 28 outside the outer side 16 of the belt 10. Instead of having an end cap 28 at one or both ends, the rod 14 may be welded to one or both outer arms 30 of the tension link 22.
[0013] The inner article support section 32 of each belt row 12 is formed by a wire 34 having a rectangular cross section. The rectangular wire 34, including a square, is spirally wound around the pin 14 at the ends 20, 21 of each row 12. The inner section 32 of each row 12 is disposed between the inner arms 31 of the tension link 16. The conveyed articles are located on top of the inner section 32 along the carry path portion of the belt path. The tension link 16 is subject to belt tension. The article support section 32 is not subject to belt tension. The pin 14 extends through the interior of the loop 36 formed by the spiral winding of the flat wire 34.
[0014] Instead of a rectangular shape as in the exemplary form, the wire may be of any shape having a flat outer surface 37 on which the conveyed article rests and on which the wire slides over the carryway wear strips. Figure 2A-2C As shown, a polygonal cross section may be used, such as a triangle, trapezoid or hexagon. Alternatively, Figure 2D As shown, partially curved wire shapes, such as truncated ovals, may be used. The outer surface of the wire refers to the surface that forms the top, bottom and end surfaces of the wire when wound into a loop, rather than the side surfaces.
[0015] The belt 10 may be driven by a sprocket whose teeth fit into the space 38 between the arms 30, 31 of the U-shaped tension link 22. The teeth drive the front pin 14 in the space 38. Alternatively, the belt 10 may be used in a positive drive screw conveyor, where the end cap 28 is driven by vertical drive ribs on a rotating drive drum (not shown). Instead of a U-shape with two arms 30, 31, the tension link may be linear, forming a single arm.
[0016] Figure 3 3 shows the inner article support section 32 slightly enlarged in FIG. A flat rectangular wire 34 is spirally wound to form the section 32 into a mesh. The wire mesh forms a series of open loops 36 having an upper loop top 40 and a lower loop bottom 41. In this form, the loop tops 40 and loop bottoms 41 are flat, i.e., all of the loop tops 40 are coplanar and all of the loop bottoms are coplanar. The loop ends 42, 43 join the loop tops 40 and bottoms 41. The rectangular cross-section of the wire 34 has a width greater than its thickness. The rectangular cross-section and flat outer surface of the loop tops 40 and bottoms 41 provide greater contact area for the conveyed article and the supporting wear strips than a wound circular wire mesh. The greater contact area results in better heat transfer from or to the article, better support for heavy conveyed articles, greater surface area for marking, and longer wear life due to a wider distribution of contact with the wear strips as the belt advances.
[0017] Figure 4Another form of flat wire conveyor belt is shown in FIG. Belt 50 is Figure 1 The belt 10 is the same as the belt 10 of FIG. 1 , except that the inner article support wire mesh 52 has a loop top 54 that is convexly curved with a constant curvature. As the belt 50 is wrapped around a drive sprocket (not shown), the adjacent rows of loop tops 54 that engage the sprocket form a smooth arc against which a transfer plate (not shown) can be positioned to peel the conveyed articles from the belt 50.
[0018] Figure 5A and 5B shows that it can be used to form Figure 1 Two alternative wire cross sections for the wire mesh in FIG. Although the stadium shape has flat side surfaces, Figure 5A The oval or elliptical shape and Figure 5B Neither of the stadium shapes have flat outer surfaces. Instead, both shapes have convex curved outer surfaces 56, 57. Both shapes have a minor axis 58, 59 and a longer major axis 60, 61. The major axes 60, 61 intersect the outer surfaces 56, 57 that will form the top, bottom and ends of the spiral wire mesh. A spiral wire mesh formed with either of these cross sections minimizes product contact and provides strong product support.
Claims
1. A conveyor belt configured to advance in a conveying direction, the conveyor belt comprising: A plurality of belt rows extending in width from a first outer side to a second outer side and in a conveying direction from a first end to a second end, each belt row comprising: a first tension link having a first rod hole at the first outer side and at the first end and a second rod hole at the second end; a second tension link having a first rod hole at the second outer side and at the first end and a second rod hole at the second end; an article support section between the first and second tension links and extending from the first end to the second end of the belt row; Multiple pins; wherein the first rod holes of the first and second tension links of each belt row are aligned with the second rod holes of the first and second tension links of an adjacent belt row, and wherein the pin extends through the aligned first and second rod holes and the first and second ends of the article support sections of the adjacent belt rows to join the belt rows together at an articulated joint between adjacent belt rows; Wherein the article support section comprises a wire which is helically wound around the pin at the first and second ends of the belt row between the first and second tension links to form a loop having a flat outer or side surface.
2. The conveyor belt of claim 1 wherein the loop has a loop top that is convexly curved with a constant curvature.
3. The conveyor belt of claim 1 wherein the loops have loop bases that are coplanar.
4. The conveyor belt of claim 1 wherein the wires have a rectangular cross-section.
5. The conveyor belt of claim 4, wherein the rectangular cross-section of the wire has a width greater than its thickness.
6. The conveyor belt of claim 1 wherein the wires have a polygonal cross-section.
7. The conveyor belt of claim 6, wherein the polygonal cross-section is a triangle, a trapezoid or a hexagon.
8. The conveyor belt of claim 1, wherein the wires have a truncated curved cross-section.
9. The conveyor belt of claim 1 wherein the wires have a stadium-shaped cross-section.
10. The conveyor belt of claim 1, comprising: Multiple rod caps; The pin rod extends to the first outer side outward end and is capped by the rod cap at the end.
11. A wire mesh for forming an article-supporting inner portion of a conveyor belt row, the conveyor belt row having pins at the first and second ends of the row, the wire mesh comprising wires helically wound around the pins at the first and second ends of the belt row to form a loop having a flat outer surface.
12. The wire mesh of claim 11, wherein the wires have a rectangular cross-section.
13. The wire mesh of claim 12, wherein the rectangular cross-section of the wire has a width greater than its thickness.
14. The wire mesh of claim 11, wherein the wires have a polygonal cross-section.
15. The wire mesh according to claim 14, wherein the polygonal cross-section is a triangle, a trapezoid or a hexagon.
16. The wire mesh of claim 11, wherein the wires have a truncated curved cross-section.
17. A wire mesh for forming an article-supporting inner portion of a conveyor belt row, the conveyor belt row having pins at the first and second ends of the row, the wire mesh comprising wires helically wound around the pins at the first and second ends of the belt row to form a ring having a convex curved outer surface and a short axis and a longer long axis intersecting the convex curved outer surface.
18. The wire mesh of claim 17, wherein the wires have an oval or stadium-shaped cross-section.