Grinding roller and brush roller

Abstract

The utility model discloses a grinding roller and a brush roller, which comprise a single abrasive wire made of thermoplastic resin containing abrasive particles, yarns with higher toughness than the resin material are spirally wound on the periphery of the abrasive wire, and the yarns and the abrasive wire are bonded and fixed into a whole through an adhesive. And yarns are wound and fixed on the abrasive wires, so that the abrasive resistance of the grinding roller is improved, and the service life of the grinding roller is prolonged.

Description

Technical Field

[0001] The utility model relates to the field of industrial brush equipment, in particular to a grinding roller and a brush roller. Background Art

[0002] Industrial brush equipment is now commonly used to grind steel strips with high-speed rotating brush rollers to remove rust, oxide scale and other impurities on the surface of the steel strips.

[0003] The patent with the authorization announcement number CN212553200U discloses an industrial brush equipment and a brush roller, on which a plurality of circular rings (brushing discs) are sleeved, and a plurality of brush bar assemblies are evenly spaced on the outer circumference of the circular rings, and the brush bar assembly (grinding assembly) is composed of a plurality of brush bars (grinding sticks). Among them, the brush bar is a strip-shaped structure with a resin matrix, and the brush bar is provided with metal or non-metal abrasives, such as diamond particles and steel particles. After the brush bar assembly passes through the holes evenly distributed on the outer circumference of the circular ring, it is folded in half away from the outer circumference of the circular ring, and small holes are opened on both sides of the hole for passing iron wire to bind and fix the brush bar assembly.

[0004] The brush bar assembly mentioned above will produce wear during the high-speed rotation and brushing of the brush roller. When the strip steel cannot be effectively polished due to excessive wear, the brush bar assembly on the ring needs to be replaced. Therefore, it is necessary to reduce the brushing loss of the brush bar assembly and extend the service life of the brush bar assembly. Summary of the invention

[0005] The purpose of the utility model is to overcome the deficiencies in the above-mentioned prior art and to provide a grinding stick, which is formed by winding yarn around a single abrasive wire and gluing it to fix it, wherein the yarn is tougher than the abrasive wire, thereby increasing the wear resistance of the grinding stick and extending its service life during the grinding process.

[0006] Furthermore, a brush roller is provided, on the outer circumference of which a grinding rod is arranged for grinding the strip steel when the brush roller rotates at a high speed.

[0007] The technical solution of the utility model is achieved in this way:

[0008] A grinding stick comprises a single abrasive wire made of thermoplastic resin containing abrasive particles, a yarn with a toughness higher than that of the resin material is spirally wound on the outer periphery of the abrasive wire, and the yarn and the abrasive wire are bonded and fixed as a whole by an adhesive.

[0009] Yarns with higher toughness than the resin material of the abrasive wire are wound around the outer periphery of the abrasive wire and are fixed with an adhesive to form a grinding stick, thereby increasing the wear resistance of the grinding stick and improving the service life of the grinding stick.

[0010] Preferably, the yarn completely covers the abrasive filaments, ensuring that the abrasive filaments are covered with the yarns during the subsequent cutting and folding of the grinding rollers, so that each grinding roller can be evenly worn during use.

[0011] Preferably, the yarn is made of polyester filament material, and the yarn is a multifilament yarn formed by a plurality of fine yarns. The toughness of polyester filament is higher than that of the material of the abrasive filament body, which increases the wear resistance of the grinding roller; the yarn is a multifilament yarn formed by a plurality of fine yarns, so that the yarn has a certain width, which is convenient for winding on the abrasive filament and improves the winding efficiency.

[0012] A brush roller comprises the above-mentioned grinding roller. The grinding roller is arranged on the high-speed rotating brush roller, and the grinding roller contacts with the strip steel to grind the rust or oxide scale on the surface of the strip steel.

[0013] Preferably, the brush roller further comprises a roller core, which is covered with a winding belt from one end of the roller core to the other end along the length direction of the roller core, the winding belt is wound around the roller core in turns and completely covers the surface of the roller core, and the two ends of the winding belt are fixedly connected to the two ends of the length direction of the roller core; the winding belt is a structure with a wide bottom and a narrow opening, including a bottom plate and side panels extending upward on both sides of the bottom plate; the side panels gradually move inward from bottom to top and an opening is formed at the upper end of the two side panels; a plurality of grinding rods are fixed in the winding belt along its own length direction, each grinding rod is folded in the middle, and a metal wire is passed through the middle fold of the grinding rod, the metal wire extends along the length direction of the winding belt and limits the middle fold of the grinding rod in the winding belt, and the two ends of the grinding rod are exposed outside the opening of the winding belt. The grinding rod is arranged on the brush roller by the winding belt and the metal wire, which can ensure that the brush roller has a larger contact area with the strip steel and improve the grinding efficiency.

[0014] Preferably, a brush roller further includes a grinding brush disc and a roller body. The grinding brush disc includes a grinding assembly composed of multiple grinding rods and a disc. The inner side of the outer circumference of the disc is provided with multiple through holes along the circumferential direction. After passing through the through holes, the grinding assembly is folded away from the outer circumference of the disc. Each folded grinding assembly forms two horseshoe-shaped strands. The two strands are fixed by ultrasonic welding or by wire binding near the outer circumference of the disc. The grinding brush discs are stacked on the roller body, and each grinding brush disc is fixed to the circumference of the roller body. Multiple grinding rods form a grinding assembly, which is evenly fixed on the disc to form a grinding brush disc. The grinding brush disc is then fixed to the circumference of the roller body and rotates at high speed. This type of brush roller connection is stable and can withstand a large grinding load.

[0015] The design starting point, concept and beneficial effects of the utility model using the above technical solution are:

[0016] The technical solution forms an abrasive stick by spirally winding a yarn with a toughness stronger than the resin matrix material of the abrasive wire on a single abrasive wire and fixing the yarn with glue.

[0017] The yarn is wound around the abrasive wire to increase the wear resistance of the grinding rod. Under the same grinding environment, the service life of the grinding rod with coated yarn is one third longer than that of the grinding rod with uncoated yarn of the same length, so the service life of the grinding rod with coated yarn is improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of the spirally wound yarn of the grinding roller of the utility model;

[0019] Figure 2 It is an enlarged cross-sectional view of the grinding stick of the utility model;

[0020] Figure 3 It is a schematic diagram of fixing the grinding assembly on the grinding brush disc of the utility model by ultrasonic welding;

[0021] The reference numerals of the figures are: 1 - abrasive wire; 2 - yarn; 3 - abrasive component; 4 - disc; 401 - through hole. DETAILED DESCRIPTION

[0022] The utility model is further described below with reference to a specific embodiment. The brush roller rotates at high speed during use, and the grinding rod contacts the surface of the strip steel along with the high-speed rotation of the brush roller, grinding rust and oxide scale on the surface of the strip steel, which will cause wear. As the grinding rod is excessively worn, it needs to be replaced. As a consumable part of an industrial brush, the grinding rod needs to be replaced frequently. Therefore, how to improve the service life of the grinding component and the replacement efficiency is crucial to industrial brush equipment.

[0023] Based on the above reasons, the grinding roller of this embodiment, see Figure 1-3 As shown:

[0024] like Figure 1 As shown, a grinding stick includes a single abrasive wire 1 and a yarn 2. The abrasive wire 1 is a resin matrix strip structure, and a metal or non-metal abrasive is arranged in the abrasive wire 1, such as diamond particles and steel particles, so that the abrasive wire 1 has a grinding effect without over-grinding the strip steel; the toughness of the yarn 2 is higher than that of the resin matrix material of the abrasive wire 1.

[0025] Specifically, the yarn 2 is spirally wound around the outer periphery of the abrasive wire 1, and the yarn 2 and the abrasive wire 1 are bonded and fixed by an adhesive to form a grinding rod. The cross-sectional view of the abrasive wire 1 after the yarn 2 is wound is as shown in FIG. Figure 2 As shown; in the actual production process, the winding and bonding process is completed by automated equipment, so the yarn 1 completely covers the abrasive wire 1 so that it can be cut into a grinding rod after the covering is completed; the yarn 2 is formed by multiple fine yarns, so that the yarn 2 has a certain width, making it easier to wind on the abrasive wire and improving the winding efficiency.

[0026] Further explanation as a whole, a brush roller (scaling roller) includes the above-mentioned grinding rod and roller core, and a winding belt is coiled and covered from one end of the roller core surface to the other end along the length direction of the roller core, and the winding belt is coiled on the roller core one circle at a time and completely covers the surface of the roller core, and the two ends of the winding belt are fixedly connected to the two ends of the length direction of the roller core; the winding belt is a structure with a wide bottom and a narrow opening, including a bottom plate and side panels extending upward on both sides of the bottom plate; the side panels gradually move inward from bottom to top and an opening is formed at the upper end of the two side panels; multiple grinding rods are fixed in the winding belt along its own length direction, and each grinding rod is folded in the middle, and a metal wire is passed through the middle fold of the grinding rod, and the metal wire extends along the length direction of the winding belt and limits the middle fold of the grinding rod in the winding belt, and the two ends of the grinding rod are exposed outside the opening of the winding belt. This method of arranging the grinding rod on the brush roller through the winding belt and the metal wire can ensure that the brush roller has a larger contact area with the strip steel and improve the grinding efficiency. For more detailed structural details, please refer to the patent published by the inventor with authorization announcement number CN211361790U, which will not be described in detail in this embodiment. The difference between the above-mentioned published patent and this embodiment is that the wear resistance and service life of the grinding roller are improved by winding and gluing the yarn on the outer circumference.

[0027] To further illustrate, a brush roller includes not only the above-mentioned grinding rod but also a ring (disc 4), a brush bar assembly (grinding assembly 3) and a roller body. The brush bar assembly (grinding assembly 3) is composed of multiple brush bars (grinding rods). The inner side of the outer circumference of the ring (disc 4) is evenly provided with first holes (through holes 401) along the circumferential direction. Second holes are provided on both sides of the first hole. The brush bar assembly (grinding assembly 3) passes through the first hole and folds into a U shape toward the outside of the ring. The second holes on both sides of the first hole are penetrated by straps for binding the brush bar assembly (grinding assembly 3). The straps can be made of metal or non-metallic materials. For more detailed structural details, please refer to the inventor's public patent with authorization announcement number CN212553200U. This embodiment will not be described in detail. The difference between the above-mentioned public patent and this embodiment is that the wear resistance and service life of the grinding rod are improved by winding and gluing the yarn fixed on the outer circumference.

[0028] Further explanation, since the grinding rod (brush bar) is folded in half to form a grinding assembly (brush bar assembly) and is fixed to the outer circumference of the disc (ring) by a strap, when the grinding assembly 3 is newly made or replaced, the manual workload is large and the production efficiency is low. In order to solve the problem of low production efficiency, Figure 3 As shown, the brush disk includes a grinding component 3 composed of multiple grinding rods and a disk 4. The inner side of the outer circumference of the disk 4 has through holes 401 evenly distributed along the circumferential direction. After passing through the through holes 401, the grinding component 3 is folded away from the outer circumference of the brush disk 4. Each folded grinding component 3 forms two horseshoe-shaped strands. The two strands are located near the outer circumference of the disk 4. The grinding component 3 is automatically welded and fixed by ultrasonic means, which reduces labor costs and improves production efficiency.

[0029] Further explanation: the above two solutions of multiple grinding rods (brush strips) forming a grinding assembly (brush strip assembly) are evenly arranged on the outer circumference of the grinding brush disc (circular ring), and the grinding brush disc (circular ring) is stacked on the roller body, and each grinding brush disc (circular ring) is fixed to the roller body in the circumference. The method of arranging the grinding rods on the brush roller through the grinding brush disc (circular ring) is that since multiple grinding rods are folded in half to form a grinding assembly, the grinding assembly is in close contact with the strip steel, and the grinding effect is good. In addition, the mechanical structure is used to fix each grinding brush disc to the roller body in the circumference, which can withstand a large grinding load.

[0030] The above schematically describes the present invention and its implementation methods, which are not restrictive. The drawings show only one implementation method of the present invention, and the actual structure is not limited thereto. Therefore, if ordinary technicians in this field are inspired by it and design structural methods and embodiments similar to the technical solution without creativity without departing from the purpose of the present invention, they should all fall within the protection scope of the present invention.

Claims

1. A grinding stick, characterized in that: The invention comprises a single abrasive wire (1) made of a thermoplastic resin containing abrasive particles, a yarn (2) having a toughness higher than that of the resin material being spirally wound around the outer periphery of the abrasive wire (1), and the yarn (2) and the abrasive wire (1) are bonded and fixed as a whole by an adhesive.

2. The grinding roller according to claim 1, characterized in that: The yarn (2) completely covers the abrasive wire (1).

3. The grinding roller according to claim 1, characterized in that: The yarn (2) is made of polyester filament material, and the yarn (2) is a multifilament yarn formed by a plurality of fine yarns.

4. A brush roller, characterized in that: Including the grinding stick according to any one of claims 1 to 3.

5. The brush roller according to claim 4, characterized in that: It also includes a roller core, which is covered with a winding belt from one end of the roller core to the other end along the length direction of the roller core, the winding belt is wound around the roller core circle by circle and completely covers the surface of the roller core, and the two ends of the winding belt are fixedly connected to the two ends of the length direction of the roller core; the winding belt has a structure with a wide bottom and a narrow opening, including a bottom plate and side panels extending upward on both sides of the bottom plate; the side panels gradually move inward from bottom to top and openings are formed at the upper ends of the two side panels; a plurality of grinding rods are fixed in the winding belt along its own length direction, each grinding rod is folded in the middle, a metal wire is passed through the middle fold of the grinding rod, the metal wire extends along the length direction of the winding belt and limits the middle fold of the grinding rod within the winding belt, and the two ends of the grinding rod are exposed outside the opening of the winding belt.

6. The brush roller according to claim 4, characterized in that: It also comprises a grinding brush disc and a roller body, wherein the grinding brush disc comprises a grinding assembly (3) composed of a plurality of grinding rods and a disc (4), wherein the inner side of the outer circumference of the disc (4) is provided with a plurality of through holes (401) along the circumferential direction, and the grinding assembly (3) is folded in the direction away from the outer circumference of the disc (4) after passing through the through holes (401), and each of the folded grinding assemblies (3) forms two horseshoe-shaped strands, and the two strands are fixed by ultrasonic welding or by binding with iron wire at positions close to the outer circumference of the disc (4); the grinding brush discs are stacked on the roller body, and each of the grinding brush discs is fixed to the roller body in the circumferential direction.

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