Cylindrical grinding brush
By setting up brush wire wire planting holes with chamfered or annular grooves on the brush holder of the cylindrical grinding brush and filling with resin glue, the problem of brush wire peeling and difficulty in adjusting density is solved, and flexible adjustment and efficient utilization of brush wire density is achieved.
Patent Information
- Application Number
- CN202422180999.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-30
- Publication Date
- 2025-04-29
- Estimated Expiration
- 2034-08-30
AI Technical Summary
Existing cylindrical abrasive brushes are prone to problems such as brush wire falling off, matrix cracking and difficulty in adjusting the brush wire density during production and use.
The brush wire wire planting holes are arranged on the circumference of the brush holder, and chamfers are set or annular grooves are opened at the wire wire planting hole ports, resin glue is filled, and the cylinder is fitted to solidify the brush wire density is achieved.
By reducing the stress between the brush wire and the brush holder, the adjustability of the brush wire density is improved, and the brush wire is effectively prevented from falling off and breaking at the joint area, improving the brush wire utilization rate and product use flexibility.
Smart Images
Figure CN222806809U_ABST
Abstract
Description
Technical Field
[0001] The present invention relates to industrial abrasive brushes. Background Art
[0002] Cylindrical grinding brushes are mainly used for grinding steel, stone and other materials. They are used in many industries such as steel, metal processing, wood processing, artificial or natural stone, textiles, electronics, etc., for grinding, polishing, cleaning, etc. of product surfaces. According to different requirements, there are many types of brush wires (hair) used, mainly grinding brush wires containing abrasive particles, metal brush wires, plastic brush wires of various materials, animal hair, plant fibers, etc.
[0003] At present, cylindrical abrasive brushes mainly adopt the traditional process structure of using metal clips to fix the brush wires after drilling holes, and clamping and fixing the brush wires with steel belts (sheets) and then winding them into shape. In the former, the adjacent wire planting holes should be kept at a large enough distance to ensure the firmness of the brush wires, which limits the density of the brush wires. It also requires that the brush roller base should have sufficient thickness to ensure its strength and prevent deformation after wire planting. Even so, the problems of base cracking and brush wire shedding still occur from time to time during the production and use of abrasive brushes; the latter has defects such as easy shedding of brush wires and stress concentration that easily causes brush wires to break at the joint with metal, rust of metal parts, and high brush wire density and difficulty in adjustment due to the structural characteristics of the product. Summary of the invention
[0004] The invention provides a cylindrical grinding brush to solve the problems existing in the prior art.
[0005] To achieve the purpose of the present invention, this cylindrical grinding brush includes a cylindrical brush holder, which is characterized in that brush wire planting holes are evenly distributed on the circumferential surface of the brush holder, the brush wire planting holes are through holes, and the brush wire planting hole ports facing the axis of the brush holder are chamfered or an effective number of annular grooves are opened, a brush wire bundle is inserted into the brush wire planting hole, and resin glue is filled in the brush wire planting hole and the annular groove, and a cylindrical body matched with its inner diameter is inserted into the brush holder, and the cylindrical body is fixedly connected to the brush holder.
[0006] There is one annular groove, and the width of the annular groove is smaller than the length of the brush holder.
[0007] There are multiple annular grooves, each of which is evenly and parallelly arranged on the inner circumferential surface of the brush holder. The center lines of each annular groove coincide with the center connecting lines of the parallel brush wire planting holes, and the width of the annular groove is greater than the aperture of the brush wire planting hole.
[0008] The length of the cylindrical body is not greater than the length of the brush holder.
[0009] The technical progress achieved by the present invention:
[0010] Since a chamfer or an annular groove is provided at the end of the brush wire planting hole facing the axis on the brush holder, brush wire planting holes of different densities can be arranged according to different process requirements. The brush wire planting holes and chamfers or annular grooves are filled with resin glue and a cylindrical body is installed to form the present invention. Since there is no expansion force of the clip, the hole distance between adjacent brush wire planting holes can be minimized, which not only eliminates the stress between the brush wire and the brush holder, but also makes the brush wire density easy to adjust, and can effectively prevent the defects of the brush wire falling off at the junction of the brush wire and the metal and the fracture of the junction of the brush wire and the metal caused by stress concentration. The cylindrical brush holder made of high-strength aluminum alloy lightweight material can not only avoid rust and pollution of the workpiece, but also reduce the equipment load and transportation cost. Compared with the grinding brush with existing steel belt process structure, the present invention can effectively improve the flexibility and firmness of brush wire arrangement, and the brush wire utilization rate can reach more than 70%. The structure is simple and reasonable, which meets the requirements and scope of use of surface grinding, polishing and cleaning of different stone products. BRIEF DESCRIPTION OF THE DRAWINGS
[0011] Figure 1 A schematic diagram of the structure of the present invention for providing a chamfer at the end of the filament planting hole.
[0012] Figure 2 A schematic diagram of the structure of an annular groove is provided at the port of the wire planting hole.
[0013] Figure 3 Schematic diagram of the structure of opening multiple annular grooves for the wire planting hole port.
[0014] Figure 4 for Figure 3 Schematic diagram of the overall structure. DETAILED DESCRIPTION
[0015] Example 1: Figure 1 As shown, the cylindrical grinding brush of the present invention includes a cylindrical brush holder 2, which is made of high-strength aluminum alloy. Brush wire planting holes 1 are evenly distributed on the circumferential surface of the cylindrical brush holder 2. The brush wire planting holes 1 are through holes. A chamfer 5 is set on the end of the brush wire planting hole 1 facing the axis of the brush holder 2. A brush wire bundle 3 is inserted into the brush wire planting hole 1. Resin glue is filled in the brush wire planting hole 1 and the chamfer 5. A cylindrical body 4 matching the inner diameter of the brush holder 2 is inserted in the brush holder 2. The cylindrical body 4 is made of plastic material. The brush holder 2 and the cylindrical body 4 are bonded and fixedly connected after being filled with resin glue. The length of the cylindrical body 4 is not greater than the length of the cylindrical brush holder 2. The present invention can be put into use after the two ends are respectively equipped with flanges that are connected to the equipment shaft.
[0016] Example 2: Figure 2As shown, the difference between this embodiment and embodiment 1 is that a first annular groove 6 is provided on the inner circumferential surface of the cylindrical brush holder 2, and the width of the first annular groove 6 is smaller than the length of the brush holder 2. After the brush wire bundle 3 is inserted, the brush wire planting hole 1 and the first annular groove 6 are filled with resin glue, and then the cylindrical body 4 is inserted into the cylindrical brush holder 2 to achieve bonding and fixing between the cylindrical brush holder 2 and the cylindrical body 4.
[0017] Example 3: Figure 3 , Figure 4 As shown, the difference between this embodiment and embodiment 1 is that a plurality of second annular grooves 7 are provided on the inner circumferential surface of the cylindrical brush holder 2, and the second annular grooves 7 are arranged in parallel and evenly on the inner circumferential surface of the cylindrical brush holder 2, and the center lines of the second annular grooves 7 coincide with the center connecting lines of the parallel arranged brush filament planting holes 1, and the width of the second annular grooves 7 is greater than the aperture of the brush filament planting holes 1.
[0018] The technical solution of the present invention has been tested in a laboratory scale-up pilot test, i.e., a small-scale test of the product before large-scale mass production, and the process scale-up process has good reproducibility. After the pilot test, a user survey was conducted in a small range. The survey results show that the present invention eliminates the stress between the brush wire and the brush holder, the brush wire density is easy to adjust, and the disadvantage of the brush wire falling off is overcome. There is no breakage at the junction of the brush wire and the metal. The technical solution of the present invention is a product with a perfect and reasonable structure designed on the basis of independent research and development, and the user satisfaction is high.
Claims
1. A cylindrical grinding brush, comprising a cylindrical brush holder, characterized in that The circumferential surface of the brush holder is evenly distributed with brush wire planting holes, and the brush wire planting holes are through holes. The ends of the brush wire planting holes facing the axis of the brush holder are chamfered or an effective number of annular grooves are opened. Brush wire bundles are inserted into the brush wire planting holes, and resin glue is filled in the brush wire planting holes and the annular grooves. A cylindrical body matched with its inner diameter is inserted into the brush holder, and the cylindrical body is fixedly connected to the brush holder.
2. The cylindrical grinding brush according to claim 1, characterized in that There is one annular groove, and the width of the annular groove is smaller than the length of the brush holder.
3. The cylindrical grinding brush according to claim 1, characterized in that There are multiple annular grooves, each of which is evenly and parallelly arranged on the inner circumferential surface of the brush holder. The center lines of each annular groove coincide with the center connecting lines of the parallel brush wire planting holes, and the width of the annular groove is greater than the aperture of the brush wire planting hole.
4. The cylindrical grinding brush according to claim 1, characterized in that The length of the cylindrical body is not greater than the length of the brush holder.