A grid polishing wheel

Abstract

The invention discloses a grid polishing wheel, belonging to the technical field of abrasive tools. The grid polishing wheel of the invention comprises a wheel body, which is formed by bonding and curing a plurality of layers of mesh cloth, each layer of mesh cloth is attached with abrasive, and the mesh holes of the mesh cloth are attached with abrasive; in any layer of mesh cloth, at least part of the mesh holes are not blocked. The grid polishing wheel of the invention has better grinding ability, grinding efficiency, heat dissipation ability and chip removal ability, and has certain rigidity and elasticity.

Description

Technical Field

[0001] The invention relates to a grid polishing wheel and belongs to the technical field of grinding tools. Background Art

[0002] Abrasives are tools used for grinding and polishing. Most abrasives are artificial abrasives made of abrasives and binders, and there are also natural abrasives made directly from natural minerals. In addition to being widely used in machinery manufacturing and other metal processing industries, abrasives are also used in food processing, papermaking industry, and the processing of non-metallic materials such as ceramics, glass, stone, plastic, rubber, and wood.

[0003] A grinding wheel is a wheel-shaped abrasive tool used for grinding or polishing the surface of a tool or a coating. Existing grinding wheels usually use emery cloth wheels, nylon wheels, bonded emery cloth wheels, resin grinding wheels, etc. There are many varieties of emery cloth wheels, including flat emery cloth wheels, flap wheels, and emery cloth wheels with handles.

[0004] Specifically, the flat emery cloth wheel is made by cutting the emery cloth into sheets, and then stacking the formed emery cloth sheets on the gluing position of the pallet according to a certain rule, and then adding an adhesive between the pallet and the emery cloth sheets, and curing them to make a flat emery cloth wheel, such as Figure 1 The flap wheel is made by closely arranging the formed abrasive cloth pieces in a radial shape, covering one end, and then covering the other end, adding a binder between the two end covers and the abrasive cloth pieces, and curing them, so as to make the flap wheel, as shown in FIG. Figure 1 b. The handle emery wheel is made by placing the formed emery cloth pieces in a radial and tight arrangement in a specific auxiliary tool. The specific auxiliary tool has a through hole reserved in it, and the round handle is inserted into the through hole. Then, an adhesive is added between the emery cloth pieces around the round handle, and after curing, the auxiliary tool is removed to make the handle emery wheel. Figure 1 c. The preparation method of nylon wheel usually adopts non-woven fabric dipped in glue, overlapped and pressed, and then cured, such as Figure 1 d. The bonded abrasive cloth wheel is made by stacking multiple layers of cloth together, then cutting them, fixing them with strings into a disc shape, applying animal glue along the circumference, and then sanding them. Repeat the above steps until the appropriate size is reached, and then solidify them to prepare a bonded abrasive cloth wheel, as shown in FIG. Figure 1 The resin grinding wheel is a mixture of sand and glue that is pressurized to form a cymbal or disc shape, such as Figure 1 f) a cymbal-shaped resin grinding wheel; and Figure 1 g. However, the polishing wheel prepared by the prior art manufacturing method has the problems of insufficient grinding sharpness, poor adhesion, and easy falling off of abrasives, thereby affecting the grinding efficiency. In addition, the existing polishing wheels of various structures not only have low grinding sharpness, but also have problems such as poor heat dissipation, poor rigidity and elasticity, and difficulty in chip removal. Summary of the invention

[0005] The purpose of the present invention is to provide a grid polishing wheel in view of the above-mentioned problems. The present invention adopts a grid cloth as the base material of the polishing wheel body, which can improve the grinding ability, heat dissipation ability and chip removal ability of the polishing wheel and has a certain rigidity and elasticity.

[0006] The technical solution adopted by the present invention is as follows:

[0007] A grid polishing wheel comprises a wheel body, wherein the wheel body is formed by bonding and curing a plurality of layers of grid cloth, each layer of the grid cloth is attached with abrasives, and the mesh holes of the grid cloth are also attached with abrasives; in any layer of the grid cloth, at least part of the mesh holes are not blocked.

[0008] The present invention adopts mesh cloth as the base material of the wheel body of the polishing wheel. The mesh cloth has mesh holes, so that a large number of gaps can exist inside and on the surface of the wheel body (the mesh holes of each layer of mesh cloth itself form the gaps of the wheel body; the mesh holes of adjacent mesh cloths are connected to form the gaps of the wheel body). The mesh holes of the mesh cloth are not limited to a shape, and can be square holes, polygonal holes, etc. The polishing wheel made of mesh cloth has larger and more gaps, better heat dissipation during the grinding process, and reduces the probability of the workpiece being burned; and because the mesh cloth has mesh holes and the wheel body has gaps, a certain rigidity and elasticity can be brought during the grinding process, which can make the cutting smoother; and because the mesh cloth has mesh holes and the wheel body has gaps, abrasives are attached to the mesh holes, that is, abrasives are attached to the gaps, and the wheel body forms a three-dimensional sawtooth grinding structure, which can improve the grinding sharpness and the grinding ability of the polishing wheel. Abrasives are attached to each layer of mesh cloth, and several layers of mesh cloth are bonded and cured to form a wheel body with an integrated structure, so that most of the wheel body can be used to participate in the grinding operation, and the corresponding grinding residue of the wheel body will be less, so that the material is put to good use. The present invention makes the mesh cloth into a wheel body by bonding and curing, so that the density of the abrasives in the inner and outer layers of the wheel body is uniform (in other words, the abrasives can be distributed more evenly in the wheel body). Therefore, after the outer layer of the mesh cloth structure of the wheel body is worn, the inner layer of the mesh cloth structure can produce the same grinding effect as the outer layer. In any layer of mesh cloth, at least part of the mesh holes are not blocked, so that gaps can be effectively formed between the inside and the surface of the wheel body.

[0009] Furthermore, the mesh holes of each layer of mesh cloth and the mesh holes of adjacent mesh cloths are connected to form gaps in the wheel body, and abrasives are attached to the gaps.

[0010] Furthermore, for the abrasive attached to any layer of mesh cloth, part of the abrasive is located in the mesh holes of the abrasive itself, and part of the abrasive is located at the mesh holes of the adjacent mesh cloth.

[0011] Alternatively, the meshes of adjacent mesh cloths are aligned; or, the meshes of adjacent mesh cloths are staggered.

[0012] Furthermore, the abrasive is attached to the lines of the mesh cloth. In the wheel body of the mesh polishing wheel of the present invention, the abrasive is attached to the lines of the mesh cloth, and the abrasive is not easy to fall off, and the mesh cloth is equivalent to the skeleton of the wheel body.

[0013] Furthermore, the abrasive is attached to each layer of mesh cloth through an adhesive layer, and several layers of mesh cloth are bonded and cured through the adhesive layer to form the wheel body.

[0014] Furthermore, the adhesive layer contains reinforced short-cut fibers or / and whiskers for enhancing the mechanical properties of the mesh cloth. The mechanical properties of the mesh cloth and the mesh polishing wheel body, especially the tensile strength, can be improved, the mesh polishing wheel can be prevented from breaking, and the safety of the mesh polishing wheel can be improved. This design is particularly suitable for mesh cloth made of materials with relatively low tensile strength such as linen or cotton.

[0015] Preferably, the mechanical properties of the mesh cloth in the warp and weft directions are substantially consistent, so that the mechanical properties of the mesh polishing wheel are relatively uniform, and the polishing wheel can be consumed relatively evenly during the grinding process.

[0016] Optionally, the wheel body is formed by laminating several layers of mesh cloth; or, the wheel body is formed by winding several layers of mesh cloth; a wheel body through hole is provided in the middle of the wheel body. The wheel body can be formed by laminating several layers of mesh cloth, bonding and curing; or, it can be formed by winding several layers of mesh cloth, bonding and curing; both structures can be used to form the wheel body. The wheel body through hole facilitates the use of a mesh polishing wheel for polishing operations.

[0017] Optionally, the grid polishing wheel is a cymbal-shaped tray grid polishing wheel, a cymbal-shaped integrated grid polishing wheel, a covered grid polishing wheel, a handle grid polishing wheel, a columnar grid polishing wheel or a sheet grid polishing wheel; wherein,

[0018] The cymbal-shaped tray grid polishing wheel comprises the wheel body, one end face of the wheel body is connected with a cymbal-shaped tray, the middle of the tray has a tray through hole, and the tray through hole is substantially coaxial with the wheel body through hole;

[0019] The cymbal-shaped integrated grid polishing wheel comprises the wheel body, the middle part of the wheel body has a cymbal-shaped part, the cymbal-shaped part is formed by the middle part of one end surface of the wheel body being concave and the middle part of the other end surface being convex, and the wheel body through hole is located in the middle part of the cymbal-shaped part;

[0020] The covered grid polishing wheel comprises the wheel body, the two ends of the wheel body are connected with end covers, the middle of the end covers is provided with an end cover through hole, and the end cover through hole is substantially coaxial with the wheel body through hole;

[0021] The grid polishing wheel with handle comprises the wheel body, and the through hole of the wheel body is connected with a handle rod;

[0022] The columnar grid polishing wheel comprises the wheel body, and the thickness of the wheel body is h≥10mm;

[0023] The sheet-shaped grid polishing wheel comprises a wheel body, and the thickness of the wheel body is h<10mm.

[0024] In summary, due to the adoption of the above technical solution, the beneficial effects of the present invention are:

[0025] The grid polishing wheel of the present invention is easy to use and has strong versatility compared with the polishing wheels in the prior art. It can replace various types of polishing wheels in the prior art and has strong market value and engineering application value. The grid polishing wheel of the present invention has better grinding ability, grinding efficiency, heat dissipation ability and chip removal ability, and has certain rigidity and elasticity. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] The present invention will now be described by way of example with reference to the accompanying drawings, in which:

[0027] Figure 1 is a stereogram of a polishing wheel in the prior art; wherein Figure 1 ag are flat emery wheel, flap wheel, emery wheel with handle, nylon wheel, adhesive emery wheel, cymbal resin grinding wheel, disc resin grinding wheel;

[0028] Figure 2 This is a front view of a laminated cymbal-shaped tray grid polishing wheel ( Figure 2 a) and stereogram ( Figure 2 b);

[0029] Figure 3 This is a front view of a laminated cymbal-shaped integrated grid polishing wheel ( Figure 3 a) and stereogram ( Figure 3 b);

[0030] Figure 4 This is a front view of a laminated grid polishing wheel with a cover ( Figure 4 a) and stereogram ( Figure 4 b);

[0031] Figure 5 This is a front view of a wound-type covered grid polishing wheel ( Figure 5 a) and stereogram ( Figure 5 b);

[0032] Figure 6 This is a front view of a laminated grid grinding wheel with a handle ( Figure 6 a) and stereogram ( Figure 6 b);

[0033] Figure 7 This is a front view of a wound-type grid polishing wheel with a handle ( Figure 7 a) and stereogram ( Figure 7 b);

[0034] Figure 8 This is a front view of a laminated columnar grid polishing wheel ( Figure 8 a) and stereogram ( Figure 8 b);

[0035] Fig. 9 This is a front view of a winding columnar grid polishing wheel ( Fig. 9 a) and stereogram ( Fig. 9 b);

[0036] Fig.10 It is a three-dimensional view of a winding columnar grid polishing wheel having a through hole;

[0037] Fig.11 This is a front view of a laminated grid grinding wheel ( Fig.11 a) and stereogram ( Fig.11 b);

[0038] Fig.12 This is a top view of a plain woven mesh cloth ( Fig.12 a) and stereogram ( Fig.12 b);

[0039] Fig.13 This is a top view of a twisted mesh fabric ( Fig.13 a) and stereogram ( Fig.13 b);

[0040] Fig.14 This is a schematic diagram of the prior art after the dense cloth base is implanted with abrasives ( Fig.14 a), and a schematic diagram of a flat woven mesh cloth of the present invention after implanting abrasives ( Fig.14 b), Schematic diagram of the twisted mesh cloth after the abrasive is implanted ( Fig.14 c);

[0041] Fig.15 It is a schematic diagram of the gap in the wheel body;

[0042] Fig.16 This is a schematic diagram showing that, for the abrasive attached to any layer of mesh cloth, part of the abrasive is located in its own mesh holes, and part of the abrasive is located in the mesh holes of the adjacent mesh cloth.

[0043] Markings in the figure: 100-mesh cloth, 110-warp, 111-twisted warp, 112-ground warp, 113-twisted part, 120-weft, 130-mesh, 200-abrasive, 300-gap, 400-adhesive layer, 500-wheel body, 501-wheel body through hole, 502-through hole, 510-tray, 511-tray through hole, 520-cymbal part, 530-end cover, 531-end cover through hole, 540-handle. DETAILED DESCRIPTION

[0044] All features disclosed in this specification, or steps in all methods or processes disclosed, except mutually exclusive features and / or steps, can be combined in any manner.

[0045] Any feature disclosed in this specification, unless otherwise stated, can be replaced by other equivalent or alternative features with similar purposes. That is, unless otherwise stated, each feature is only an example of a series of equivalent or similar features.

[0046] like Figures 2 to 15 As shown, a mesh polishing wheel of this embodiment includes a wheel body 500, which is formed by bonding and curing several layers of mesh cloth 100, each layer of mesh cloth 100 is attached with abrasive 200, and the mesh holes 130 of the mesh cloth are attached with abrasive 200; in any layer of mesh cloth 100, at least part of the mesh holes are not blocked.

[0047] The present invention adopts mesh cloth as the base material of the wheel body of the polishing wheel. The mesh cloth has mesh holes, so that a large number of gaps can exist inside and on the surface of the wheel body (the mesh holes 130 of each layer of mesh cloth 100 form the gaps 300 of the wheel body; the mesh holes 130 of adjacent mesh cloths are connected to form the gaps 300 of the wheel body). The mesh holes of the mesh cloth are not limited to a shape, and can be square holes, polygonal holes, etc. The polishing wheel made of mesh cloth has larger and more gaps, better heat dissipation during the grinding process, and reduces the probability of the workpiece being burned; and because the mesh cloth has mesh holes and the wheel body has gaps, a certain rigidity and elasticity can be brought during the grinding process, which can make the cutting smoother; and because the mesh cloth has mesh holes and the wheel body has gaps, abrasives are attached to the mesh holes, that is, abrasives are attached to the gaps, and the wheel body forms a three-dimensional sawtooth grinding structure, which can improve the grinding sharpness and improve the grinding ability of the polishing wheel. Abrasives 200 are attached to each layer of mesh cloth 100, and several layers of mesh cloth 100 are bonded and cured to form a wheel body with an integrated structure, so that most of the wheel body can be used to participate in the grinding operation, and the grinding residue of the corresponding wheel body will be less, making the best use of it. The present invention makes the mesh cloth into a wheel body by bonding and curing, so that the density of the abrasives in the inner and outer layers of the wheel body is uniform (in other words, the abrasives can be distributed more evenly in the wheel body). Therefore, after the outer layer of the mesh cloth structure of the wheel body is worn, the inner layer of the mesh cloth structure can produce the same grinding effect as the outer layer. In any layer of mesh cloth 100, at least part of the mesh holes are not blocked, so that the inside and the surface of the wheel body can effectively form gaps. Preferably, in any layer of mesh cloth 100, all the mesh holes are not blocked; specifically, the mesh holes of any layer of mesh cloth are not blocked by the abrasives on the mesh cloth layer, but there may be a situation where they are blocked (non-blocked) by the abrasives on the mesh cloth of the adjacent layer. The meshes of the mesh cloth 100 are obvious and regular; the meshes 130 are distributed in an array on the mesh cloth 100. Optionally, abrasives 200 are attached to one or both sides of each layer of mesh cloth 100.

[0048] Further, such as Fig.15 As shown, the mesh holes 130 of each layer of mesh cloth and the mesh holes 130 of adjacent mesh cloths are connected to form the gaps 300 of the wheel body, and the abrasive 200 is attached to the gaps 300. That is, the mesh holes 130 of each layer of mesh cloth form the gaps 300 of the wheel body; the mesh holes 130 of adjacent mesh cloths are connected to form the gaps 300 of the wheel body. There are gaps 300 inside and on the surface of the wheel body.

[0049] Further, such as Fig.16As shown, for the abrasive 200 attached to any layer of mesh cloth 100, part of the abrasive 200 is located in its own mesh 300, part of the abrasive 200 is located at the mesh 300 of the adjacent mesh cloth, and part of the abrasive 200 is located between the lines of the adjacent mesh cloth 100. For part of the abrasive 200 to be located at the mesh 300 of the adjacent mesh cloth, it means that part of the abrasive 200 can be located on the inner side of the mesh 300 of the adjacent mesh cloth, or on the outer side of the mesh 300 of the adjacent mesh cloth, such as Fig.16 shown.

[0050] Alternatively, the mesh holes 130 of adjacent mesh cloths are aligned; or, the mesh holes 130 of adjacent mesh cloths are staggered. This design includes four implementation modes, the first being that the mesh holes 130 of all mesh cloths are aligned; the second being that the mesh holes 130 of all mesh cloths are staggered; the third being that the mesh holes 130 of all adjacent mesh cloths are staggered, and the mesh holes 130 of non-adjacent mesh cloths may also be aligned; the fourth being that among all adjacent mesh cloths, some adjacent mesh cloths have their mesh holes 130 aligned, and some adjacent mesh cloths have their mesh holes 130 staggered. Among the above four implementation modes, the first implementation mode can maximize the mesh gap of the wheel body, and the gap of the wheel body can penetrate through the two end surfaces of the wheel body, thereby improving the heat dissipation effect of the polishing wheel and making the polishing wheel discharge the cutting more smoothly. The second, third and fourth types are relatively similar, in that the mesh holes 130 of adjacent mesh cloths are staggered, so that the abrasives attached to the mesh cloth lines are located at the mesh holes of adjacent mesh cloths, so that more abrasives are exposed in the gaps of the wheel body, which can improve the grinding ability of the polishing wheel.

[0051] Further, such as Fig.14 , 15 As shown, the abrasive 200 is attached to the lines of the mesh cloth 100. The wheel body 500 of the mesh polishing wheel of the present invention has the abrasive attached to the lines of the mesh cloth 100, and the abrasive is not easy to fall off. The mesh cloth 100 is equivalent to the skeleton of the wheel body 500. Since the abrasive 200 is attached to the lines of the mesh cloth 100, as shown in FIG. Fig.14As shown in b and c, for any layer of mesh cloth, the line segments between two adjacent mesh holes of the mesh cloth are attached with abrasives, so that a large number of line segments with abrasives are formed in the mesh cloth, which is similar to the presence of a large number of "small sanding belts (or small sanding wires)" with fixed ends in the grinding wheel. When performing grinding operations, a large number of "small sanding belts" grind the workpiece from all directions, which can improve the grinding ability of the mesh grinding wheel. The lines of the mesh cloth 100 are the basic units that constitute the mesh cloth. It is easy to understand. For example, the mesh cloth includes warp threads 110 and weft threads 120. The warp threads 110 and weft threads 120 are interwoven to form a mesh cloth 100 with mesh holes 130; the warp threads 110 and weft threads 120 are the lines of the mesh cloth 100. The mesh cloth 100 can be a plain woven mesh cloth or a twisted woven mesh cloth, or other woven fabrics. Plain woven mesh cloth, such as Fig.12 As shown, the mesh cloth 100 includes warp threads 110 and weft threads 120, which are interlaced with each other to form a mesh cloth having mesh holes. The lines of the mesh cloth 100 are the warp threads 110 and weft threads 120 of the plain woven mesh cloth. Fig.13 As shown, the mesh cloth 100 includes warp threads 110 and weft threads 120, wherein the warp threads 110 include twisted warp threads 111 and ground warp threads 112, wherein the twisted warp threads and the ground warp threads are twisted with each other and interwoven with the weft threads, thereby forming a mesh cloth having mesh holes. Between adjacent weft threads 120, the twisted warp threads 111 and the ground warp threads 112 are twisted with each other to form a twisted portion 113, and the weft threads 120 are clamped by the twisted warp threads 111 and the ground warp threads 112. The lines of the mesh cloth 100 are the twisted warp threads 111, the ground warp threads 112 and the weft threads 120 of the twisted mesh cloth. Fig.14 a shows a schematic diagram of the prior art after abrasives are implanted on a dense cloth base. Fig.14 b is a schematic diagram showing the abrasive material implanted on the plain woven mesh cloth of the present invention, Fig.14 c shows a schematic diagram of abrasives implanted on a twisted mesh cloth; it can be seen that if a dense cloth base (such as paper, steel paper, woven cloth, non-woven cloth, composite matrix or film) in the prior art is used as the substrate of the polishing wheel, the abrasives can only be implanted on the surface of the substrate; while when the mesh cloth of the present invention is used as the substrate of the polishing wheel, the abrasives can be implanted on the surface and mesh of the substrate and attached to the lines of the mesh cloth 100. Preferably, the cross-sectional areas of the warp 110 and the weft 120 are substantially equal, and the warp 110 and the weft 120 are made of the same material.

[0052] Optionally, the mesh cloth 100 is a woven cloth made of one or more fiber materials selected from hemp fiber, cotton fiber, nylon fiber, paper fiber, glass fiber, basalt fiber, carbon fiber, polyester fiber, polyethylene fiber, magnesium chloride fiber, acrylic fiber, aromatic polyamide fiber, acetate fiber, viscose fiber, dog hair fiber, horse hair fiber, pig hair fiber, and wool fiber.

[0053] Further, such as Fig.15 As shown, the abrasive 200 is attached to each layer of mesh cloth 100 through the adhesive layer 400, and several layers of mesh cloth 100 are bonded and cured through the adhesive layer 400 to form the wheel body 500. When at least part of the mesh holes in any layer of mesh cloth 100 are not blocked, the mesh holes of the mesh cloth are not blocked by the abrasive on the layer of mesh cloth, and of course, are not blocked by the adhesive layer 400.

[0054] The wheel body of the grid polishing wheel of the present invention has the dual characteristics of coated abrasives and bonded abrasives. Coated abrasives refer to abrasives that use a binder to adhere abrasives to a flexible substrate, also known as flexible abrasives. Bonded abrasives are tools made of abrasives (grinding materials) and binders with a certain shape and a certain grinding ability. In the wheel body of the grid polishing wheel of the present invention, the abrasive 200 is attached to each layer of mesh cloth 100 through an adhesive layer 400, similar to the form of a flexible abrasive; several layers of mesh cloth 100 are bonded and cured through the adhesive layer 400 to form the wheel body 500, which is also similar to the form of a bonded abrasive. The emery cloth in the background technology is a typical flexible abrasive, and the emery cloth wheel is an extended product of the emery cloth; the resin grinding wheel in the background technology is a typical bonded abrasive.

[0055] Compared with the emery wheel, the grid polishing wheel of the present invention is basically that the closer the abrasive is to the center of the emery wheel, the denser it is, the harder the emery wheel is, and the worse the grinding ability is; while the abrasive of the grid polishing wheel of the present invention can be evenly distributed in the wheel body (with the advantages of fixed abrasive tools). Compared with the emery wheel, the abrasive distribution is more even, the grinding performance is stable, and the performance is stable, and it has stronger grinding ability, heat dissipation ability and chip removal ability.

[0056] Compared with the resin grinding wheel, the grid grinding wheel of the present invention has abrasives that are bonded to each other. During the grinding process, part of the abrasives will fall off if they fail to participate in the grinding process. The proportion of abrasives in the resin grinding wheel is large, and the amount of abrasives used is large. However, the abrasives 200 of the grid grinding wheel of the present invention are attached to the mesh cloth 100 (having the characteristics of a coated abrasive tool), are not easy to fall off, and the proportion of abrasives in the grid grinding wheel is relatively small, which can save abrasives. Compared with the resin grinding wheel, the abrasives are not easy to fall off, and it has stronger grinding ability, heat dissipation ability and chip removal ability, and has certain rigidity and elasticity.

[0057] Compared with the bonded emery cloth wheel, the grid polishing wheel of the present invention needs to be coated with glue and sand again after the abrasive on the surface of the bonded emery cloth wheel is consumed, which is troublesome to use repeatedly and difficult to achieve continuous grinding operation. The abrasive of the grid polishing wheel of the present invention is distributed in the wheel body, so the grinding operation can be carried out continuously.

[0058] Available options, such as Fig.15As shown, a part of the abrasive 200 is exposed from the adhesive layer 400; or, the abrasive 200 is completely wrapped by the adhesive layer 400. When a part of the abrasive 200 is exposed from the adhesive layer 400, the abrasive 200 can directly participate in the grinding, which can increase the grinding sharpness of the grinding working surface of the wheel body and improve the grinding efficiency. When the abrasive 200 is completely wrapped by the adhesive layer 400, during the grinding operation, the adhesive layer 400 wrapped outside the abrasive will be instantly worn out, and the abrasive can expose the adhesive layer 400, which basically does not affect the grinding sharpness and grinding efficiency of the grinding working surface of the wheel body. That is, whether it is a technical solution in which a part of the abrasive 200 is exposed from the adhesive layer 400, or a technical solution in which the abrasive 200 is completely wrapped by the adhesive layer 400, the wheel body has good grinding ability, and the difference in the use effect of the two solutions is not obvious. In the actual manufacturing process of polishing wheels, in most cases, the abrasive 200 is completely wrapped by the adhesive layer 400. Of course, there are also cases where a part of the abrasive 200 is exposed from the adhesive layer 400. That is, in the wheel body, all abrasives may partially expose the adhesive layer 400; all abrasives may be completely wrapped by the adhesive layer 400; or some abrasives may partially expose the adhesive layer 400, while other abrasives may be completely wrapped by the adhesive layer 400. All of these are within the scope of protection of the present invention.

[0059] Furthermore, the adhesive layer 400 contains reinforced chopped fibers or / and whiskers for enhancing the mechanical properties of the mesh cloth. For wheel-shaped abrasive tools, the substrate of the abrasive tool will be subjected to a large centrifugal force during high-speed rotation of the abrasive tool, so the mechanical properties of the substrate need to meet the use requirements, especially the substrate needs to have a strong tensile strength; the mesh cloth with obvious mesh holes of the same material specification is compared with a dense cloth base without mesh holes or without obvious mesh holes (such as paper, steel paper, woven cloth, non-woven cloth, composite matrix or film), and it is obvious that the tensile strength of the mesh cloth is lower than that of the dense cloth base; therefore, it can be seen that the wheel body made of mesh cloth sacrifices part of the tensile strength while improving the grinding ability, heat dissipation ability and chip removal ability; when the abrasive tool rotates at an extremely high speed, the abrasive tool with mesh cloth as the substrate may break, which poses a safety hazard and limits the maximum rotation speed that the abrasive tool can reach. Therefore, the present invention proposes a design in which the adhesive layer 400 contains reinforced chopped fibers or / and whiskers for enhancing the mechanical properties of the mesh cloth, which can improve the mechanical properties of the mesh cloth and the mesh polishing wheel body, especially the tensile strength, avoid the mesh polishing wheel from breaking, and improve the safety of the mesh polishing wheel. The reinforced chopped fibers can be a mixture of one or more of chopped basalt fibers, chopped glass fibers, and chopped carbon fibers; preferably, the reinforced chopped fibers are chopped basalt fibers. The whiskers can be a mixture of one or more of calcium sulfate whiskers, calcium carbonate whiskers, aluminum oxide whiskers, zinc oxide whiskers, and silicon carbide whiskers; preferably, the whiskers are calcium sulfate whiskers. The mesh cloth is a woven cloth (such as a plain woven mesh cloth or a twisted woven mesh cloth). When the design of the adhesive layer 400 containing whiskers is adopted, since the whiskers are short fibers at the micro-nano level, the whiskers can penetrate into the warp and weft of the mesh cloth, and especially can be adsorbed at the intersection of the warp and weft of the mesh cloth, forming a multi-point bonding structure at a microscopic level, and can also prevent slippage between the warp and weft of the mesh cloth. When the design of the adhesive layer 400 containing whiskers is adopted, the grinding ratio (the ratio of the material removal of the workpiece to the wear of the polishing wheel) can also be improved.

[0060] Preferably, the mechanical properties of the mesh cloth 100 in the warp direction and the weft direction are substantially the same. The warp direction of the mesh cloth 100 refers to the length direction of the warp of the mesh cloth 100, and the weft direction of the mesh cloth 100 refers to the length direction of the weft of the mesh cloth 100. In particular, the breaking tensile forces of the mesh cloth 100 in the warp direction and the weft direction are substantially the same. The breaking force is an important indicator of the mechanical properties of the mesh polishing wheel substrate. The mesh cloth 100 plays the role of a skeleton in the mesh polishing wheel. During the grinding process, the mesh polishing wheel (or the mesh cloth 100) will be subjected to various directional forces, which requires the mesh polishing wheel to have relatively uniform tensile, compressive and bending resistance, and requires the mechanical properties of the mesh polishing wheel to be relatively uniform so that the abrasive tool can be consumed relatively evenly during the grinding process. The mechanical properties of the mesh cloth 100 in the warp and weft directions are basically the same, especially the breaking force of the mesh cloth 100 in the warp and weft directions are basically the same, that is, the ratio of the breaking force of the mesh cloth 100 in the warp and weft directions is about 1, which is the best preferred design; of course, the ratio of the breaking force of the mesh cloth 100 in the warp and weft directions is 0.5-2, which is also feasible. Under ideal conditions, it is best if the breaking forces of the mesh cloth 100 in the warp and weft directions are completely consistent. However, in actual manufacturing, there will be deviations in the breaking forces of the mesh cloth 100 in the warp and weft directions. Therefore, the mechanical properties of the mesh cloth 100 in the warp and weft directions are basically consistent, especially the breaking forces of the mesh cloth 100 in the warp and weft directions are basically consistent.

[0061] Available options, such as Figures 2 to 11 As shown, several layers of mesh cloth 100 are stacked to form the wheel body 500; or, several layers of mesh cloth 100 are wound to form the wheel body 500; a wheel body through hole 501 is provided in the middle of the wheel body 500. The wheel body 500 can be formed by stacking, bonding and curing several layers of mesh cloth 100; or it can be formed by winding, bonding and curing several layers of mesh cloth 100; both can be used to form the wheel body structure. The wheel body through hole 501 facilitates the use of a mesh polishing wheel for polishing operations. Optionally, as Fig.10 As shown, for the winding type grid polishing wheel, a plurality of through holes 502 are provided on the wheel body of the grid polishing wheel, and the through holes 502 penetrate the two end surfaces of the wheel body 500, which can improve the heat dissipation capacity, chip removal capacity and rigidity and elasticity of the grid polishing wheel. Of course, for the laminated type grid polishing wheel, the through holes 502 can also be provided.

[0062] Combined with the design of "the mesh holes 130 of each layer of mesh cloth and the mesh holes 130 of adjacent mesh cloths are connected to form a gap 300 in the wheel body, and abrasive 200 is attached to the gap 300". For the laminated mesh polishing wheel, when the end face of the laminated mesh polishing wheel is used for grinding, the gap formed by the mesh holes of adjacent mesh cloths plays a beneficial role, forming a grinding action similar to sawtooth; when the circumferential surface of the laminated mesh polishing wheel is used for grinding, the gap formed by the mesh holes of each layer of mesh cloth plays a beneficial role, forming a grinding action similar to sawtooth. For the winding type grid polishing wheel, when the end face of the winding type grid polishing wheel is used for grinding, the gaps formed by the mesh holes of each layer of grid cloth itself play a beneficial role, forming a grinding action similar to sawtooth; when the circumferential surface of the winding type grid polishing wheel is used for grinding, the gaps formed by the connected mesh holes of adjacent grid cloths play a beneficial role, forming a grinding action similar to sawtooth.

[0063] Optionally, the grid polishing wheel is a cymbal-shaped tray grid polishing wheel, a cymbal-shaped integrated grid polishing wheel, a covered grid polishing wheel, a handle grid polishing wheel, a columnar grid polishing wheel or a sheet grid polishing wheel; wherein,

[0064] The cymbal-shaped tray grid polishing wheel shown includes the wheel body 500, one end surface of the wheel body 500 is connected to a cymbal-shaped tray 510, the middle of the tray 510 has a tray through hole 511, and the tray through hole 511 is substantially coaxial with the wheel body through hole 501. Figure 2 As shown;

[0065] The cymbal-shaped integrated grid polishing wheel comprises the wheel body 500, the middle part of the wheel body 500 has a cymbal-shaped portion 520, the cymbal-shaped portion 520 is formed by the middle part of one end surface of the wheel body 500 being concave and the middle part of the other end surface being convex, and the wheel body through hole 501 is located in the middle part of the cymbal-shaped portion 520. Figure 3 As shown;

[0066] The covered grid polishing wheel comprises the wheel body 500, the two ends of the wheel body 500 are connected with end covers 530, the middle of the end cover 530 has an end cover through hole 531, and the end cover through hole 531 is substantially coaxial with the wheel body through hole 501. Figure 4 , Figure 5 As shown;

[0067] The handle grid polishing wheel comprises the wheel body 500, and the wheel body through hole 501 is connected with a handle rod 540. Figure 6 , Figure 7 As shown;

[0068] The columnar grid polishing wheel comprises the wheel body 500, the thickness of the wheel body 500 is h≥10mm. Figure 8 , Fig. 9, Fig.10 As shown;

[0069] The sheet-shaped grid polishing wheel comprises the wheel body 500, the thickness of the wheel body 500 is h<10mm, as Fig.11 shown.

[0070] It is particularly pointed out that compared with the flat abrasive cloth wheel in the prior art, the cymbal-shaped integrated grid polishing wheel has less grinding residues (residual parts that can no longer be ground) than the flat abrasive cloth wheel. Because the flat abrasive cloth wheel has an additional tray, its grinding residues include abrasive cloth fragments and a tray; while the cymbal-shaped integrated grid polishing wheel does not have an additional tray, so the cymbal-shaped integrated grid polishing wheel can be ground almost to the root, and the utilization rate is higher.

[0071] In order to facilitate the understanding of the present invention, the present invention discloses two methods for preparing grid polishing wheels and related comparative test experiments. In the following preparation method: the glue used is a natural or synthetic resin, such as a mixture of one or more of animal glue, vegetable glue, epoxy resin, unsaturated polyester resin, phenolic resin, polyacrylic resin, and polyvinyl chloride resin; the abrasive used can be a natural abrasive or an artificial abrasive, such as a mixture of one or more of diamond, natural corundum, garnet, quartz, brown corundum, white corundum, black corundum, chrome corundum, microcrystalline corundum, single crystal corundum, zirconium corundum, praseodymium-neodymium corundum, black silicon carbide, green silicon carbide, cubic silicon carbide, cerium silicon carbide, boron carbide, iron oxide, chromium oxide, magnesium oxide, and cerium oxide; the mesh cloth is a woven cloth made of one or more fiber materials selected from hemp fiber, cotton fiber, nylon fiber, paper fiber, glass fiber, basalt fiber, carbon fiber, polyester fiber, polyethylene fiber, magnesium chloride fiber, acrylic fiber, aromatic polyamide fiber, acetate fiber, viscose fiber, dog hair fiber, horse hair fiber, pig hair fiber, and wool fiber. In the preparation of the following samples, the sand planting can be carried out by electrostatic sand planting, gravity sand planting, throwing sand planting or sand blasting, which is well known to those skilled in the art and will not be described in detail here. In the preparation of the following samples, the equipment and components used, such as baking equipment, coating equipment, pressure equipment, cutting equipment, curing equipment and slitting equipment are well known to those skilled in the art and are equipment in the prior art, and their working principles and processes will not be described in detail here.

[0072] The wheel body of the grid polishing wheel prepared by the first method for preparing a grid polishing wheel is formed by stacking several layers of grid cloth 100; the wheel body of the grid polishing wheel prepared by the second method for preparing a grid polishing wheel is formed by winding several layers of grid cloth 100.

[0073] The first method for preparing a grid polishing wheel comprises the following steps:

[0074] Step 1: Dip and coat the glue: dip the mesh cloth into the glue;

[0075] Step 2, sand planting: sand planting the mesh cloth impregnated and coated with glue in step 1, so that the abrasive adheres to the mesh cloth;

[0076] Step 3, pre-baking: pre-baking the mesh cloth that has been sand-planted in step 2;

[0077] Step 4: Gluing: Apply glue to the mesh cloth pre-baked in step 3;

[0078] Step 5: Lamination: overlap several mesh fabrics that have been laminated in step 4, and use a pressure device to apply a certain pressure to form them;

[0079] Step 6: Cutting: Cut the mesh cloth laminated in step 5 with a cutting device to obtain a preliminary mesh polishing wheel; (cut into the required shape)

[0080] Step 7: Pressurized curing: The primary mesh polishing wheel cut in step 6 is pressurized and cured by a curing device to obtain a finished mesh polishing wheel.

[0081] By adopting the first method for preparing a grid polishing wheel, various types of laminated grid polishing wheels can be manufactured. For example, the finished grid polishing wheel obtained in step seven is a laminated columnar grid polishing wheel or a laminated sheet grid polishing wheel. The finished grid polishing wheel obtained in step seven is bonded to a tray to form a laminated cymbal-shaped tray grid polishing wheel. During the lamination process of step five, a bamboo hat-shaped mold (or a cymbal-shaped mold) is used to press the mesh cloth under a certain pressure of a pressure device (such as a hydraulic press), and the finished grid polishing wheel obtained in step seven is a laminated cymbal-shaped integrated grid polishing wheel; the end caps are bonded to both ends of the wheel body through hole of the finished grid polishing wheel obtained in step seven, thereby forming a laminated covered grid polishing wheel; the bonded handle rod is inserted into the wheel body through hole of the finished grid polishing wheel obtained in step seven, thereby forming a laminated handle grid polishing wheel. The handle rod is preferably a round handle with a circular cross-section; the handle rod can also be a regular polygon with a cross-section of a regular triangle, regular quadrilateral, regular pentagon, regular hexagon, etc.: a triangular handle rod, a square handle rod, a pentagonal handle rod, a hexagonal handle rod, etc.

[0082] The second method for preparing a grid polishing wheel comprises the following steps:

[0083] Step 1: Dip and coat the glue: dip the mesh cloth into the glue;

[0084] Step 2, sand planting: sand planting the mesh cloth impregnated and coated with glue in step 1, so that the abrasive adheres to the mesh cloth;

[0085] Step 3, pre-baking: pre-baking the mesh cloth that has been sand-planted in step 2;

[0086] Step 4: Gluing: Apply glue to the mesh cloth pre-baked in step 3;

[0087] Step 5, winding: winding a plurality of mesh fabrics which have been glued in step 4 into a cylindrical shape under a certain winding pressure;

[0088] Step 6: Pressurization and curing: The mesh cloth wound in step 5 is pressurized and cured by a curing device to obtain a preliminary mesh polishing wheel;

[0089] Step 7: Cutting: Cut the initial mesh polishing wheel product that has been pressurized and cured in step 6 by using a cutting device to obtain a finished mesh polishing wheel product.

[0090] By adopting the second method for preparing the grid polishing wheel, various types of winding grid polishing wheels can be manufactured. For example: the finished grid polishing wheel obtained in step seven is a winding columnar grid polishing wheel; the end caps are bonded to the two ends of the wheel body through hole of the finished grid polishing wheel obtained in step seven, thereby forming a winding covered grid polishing wheel; the bonding handle rod is inserted into the through hole of the finished grid polishing wheel obtained in step seven, thereby forming a winding handle grid polishing wheel. During the winding process of step five, a tooling tool (such as iron wire) is added and the tooling is removed after the pressurized curing in step six, so that the wheel body of the grid polishing wheel is formed with a plurality of through holes penetrating the two end surfaces of the wheel body.

[0091] It can be seen that the present invention exemplifies various forms of laminated or wound grid grinding wheels, which can generally replace the grinding wheels in the prior art. For example: imitating the existing flat abrasive cloth wheels (such as Figure 1 a) structure: laminated cymbal tray grid polishing wheel (such as Figure 2 As shown), the laminated cymbal-shaped integrated grid polishing wheel (as shown Figure 3 As shown); Of course, the cymbal tray grid polishing wheel and the cymbal integrated grid polishing wheel can also be of the winding type, but due to the stress characteristics of its use, the application prospect of the winding type is relatively poor. Figure 1 b) structure: laminated covered grid polishing wheel (as shown in Figure 4 As shown), winding type covered grid polishing wheel (as shown Figure 5 As shown). Imitate the existing handle abrasive wheel (such as Figure 1 c) structure: laminated handle grid polishing wheel (such as Figure 6 As shown), winding type handle grid polishing wheel (as shown Figure 7 As shown). Imitating existing nylon wheels (such as Figure 1 d) structure or imitate the existing abrasive cloth wheel (such as Figure 1 e) structure: laminated columnar grid polishing wheel (such as Figure 8As shown), winding columnar grid polishing wheel (as shown Fig. 9 The cymbal-shaped tray grid polishing wheel and the cymbal-shaped integrated grid polishing wheel are also similar to the cymbal-shaped resin grinding wheel (such as Figure 1 f) has a similar structure; the columnar grid polishing wheel can also be made into a disc-shaped resin grinding wheel (such as Figure 1 g) with a similar structure; while the laminated grid grinding wheel (such as Fig.11 The invention is a grid polishing wheel (shown in the figure) that can be used for polishing narrow grooves, and its structure is similar to the cutting disc of the prior art; the difference is that the cutting disc is used for cutting the workpiece, while the sheet-shaped grid polishing wheel is used for polishing the workpiece. In general, the grid polishing wheel of the invention can be compared with the polishing wheel in the prior art, and basically can manufacture a grid polishing wheel with a similar shape and a replacement for the polishing wheel in the prior art, and has better performance and strong market value.

[0092] In the dipping and gluing step of step 1 of the first or second method for preparing the mesh polishing wheel, the mesh cloth is dipped in glue containing reinforced chopped fibers and / or whiskers, so that the adhesive layer 400 of the mesh polishing wheel finally manufactured contains reinforced chopped fibers and / or whiskers for enhancing the mechanical properties of the mesh cloth. The mechanical properties of the mesh cloth and the mesh polishing wheel body, especially the tensile strength, can be improved, the mesh polishing wheel can be prevented from breaking, and the safety of the mesh polishing wheel can be improved. The reinforced chopped fibers are preferably chopped basalt fibers; and the whiskers are preferably calcium sulfate whiskers.

[0093] The comparative test of the grid polishing wheel of the present invention and the polishing wheel of the prior art is as follows.

[0094] 1. Comparative test experiment 1:

[0095] (I) Types of test samples:

[0096] (1) Laminated and wound mesh polishing wheels made of cotton mesh cloth, specifically, laminated cymbal tray mesh polishing wheels (imitation flat emery cloth wheels), cymbal integrated mesh polishing wheels (imitation flat emery cloth wheels), covered mesh polishing wheels (imitation flap wheels), and handle mesh polishing wheels (imitation handle emery cloth wheels), as well as wound covered mesh polishing wheels (imitation flap wheels) and handle mesh polishing wheels (imitation handle emery cloth wheels).

[0097] (2) Laminated and wound grid polishing wheels made of nylon mesh cloth, specifically: laminated columnar grid polishing wheels (imitation nylon wheels), wound columnar grid polishing wheels (imitation nylon wheels).

[0098] (3) The polishing wheels in the prior art include: ordinary flat wheel, ordinary handle wheel, ordinary flap wheel, and ordinary nylon wheel; wherein, ordinary flat wheel refers to the flat emery cloth wheel described in the background technology, ordinary handle wheel refers to the handle emery cloth wheel described in the background technology, ordinary flap wheel refers to the flap wheel described in the background technology, and ordinary nylon wheel refers to the nylon wheel described in the background technology.

[0099] (II) Test sample grouping:

[0100] Group A: ordinary flat wheel, laminated cymbal tray grid polishing wheel, laminated cymbal integrated grid polishing wheel; among them, the product specifications are: 100×8×16 (wheel body diameter D×wheel body thickness h×wheel body through hole diameter d, unit is mm).

[0101] Group B: ordinary flap wheel, laminated grid polishing wheel with cover, winding grid polishing wheel with cover; among them, the product specifications are: 240×40×25 (wheel body diameter D×wheel body thickness h×tray through hole diameter d, unit is mm).

[0102] Group C: ordinary handle wheels, laminated handle grid polishing wheels, and winding handle grid polishing wheels. The product specifications are: 50×25×6 (wheel body diameter D×wheel body thickness h×handle rod diameter d, in mm).

[0103] Group D: ordinary nylon wheel, laminated columnar grid polishing wheel, winding columnar grid polishing wheel; among them, the product specifications are: 240×40×25 (wheel body diameter D×wheel body thickness h×wheel body through hole diameter d, unit is mm).

[0104] (III) Description of test method:

[0105] The ordinary flat wheel, the laminated cymbal tray grid polishing wheel and the laminated cymbal integrated grid polishing wheel of the same specifications in group A were used to grind A3 steel under the same grinding conditions to compare the grinding efficiency of these three polishing wheels.

[0106] The ordinary flap wheel, the laminated grid polishing wheel with cover and the winding grid polishing wheel with cover of the same specifications in group B were used to grind A3 steel under the same grinding conditions to compare the grinding efficiency of these three polishing wheels.

[0107] The ordinary handle wheel, the laminated handle grid polishing wheel and the winding handle grid polishing wheel of the same specifications in group C were used to grind A3 steel under the same grinding conditions to compare the grinding efficiency of these three polishing wheels.

[0108] The ordinary nylon wheels, laminated columnar grid polishing wheels and winding columnar grid polishing wheels of the same specifications in group D were used to grind A3 steel under the same grinding conditions to compare the grinding efficiency of these three polishing wheels.

[0109] In the four groups A, B, C, and D, the particle size of the abrasive of the grinding wheel is 240#, and the grinding object is A3 steel.

[0110] (IV) Indicator calculation method:

[0111] Grinding amount: the amount of material removed from the workpiece, in g;

[0112] Grinding efficiency: the weight of the workpiece ground per unit time, unit: g / min; that is, grinding efficiency = grinding amount / grinding time.

[0113] (V) Test results:

[0114] The total grinding time of the four groups of tests A, B, C, and D is 25 minutes, and each time period is 5 minutes. The results of the grinding efficiency of the test groups A, B, C, and D are shown in Table 1:

[0115] Table 1 Grinding index test results 1

[0116]

[0117] Due to space constraints, the above table calculates the average grinding efficiency of a 25-minute grinding time period based on the grinding amount when the total grinding time is 25 minutes. The grinding efficiency of each time period is not calculated and listed separately. Those skilled in the art can understand that grinding efficiency = grinding amount / grinding time, and grinding efficiency is directly proportional to grinding amount; the greater the grinding amount in the same time period, the greater the grinding efficiency.

[0118] In group A, ordinary plane wheels in the prior art of the same specifications are compared with the laminated cymbal-shaped tray grid polishing wheel and the laminated cymbal-shaped integrated grid polishing wheel of the present invention; it can be seen from Table 1 that in the first time period, the grinding amount (grinding efficiency) of the cymbal-shaped tray grid polishing wheel and the cymbal-shaped integrated grid polishing wheel is not much different from that of the ordinary plane wheel; in the last four time periods, the grinding amount (grinding efficiency) of the cymbal-shaped tray grid polishing wheel and the cymbal-shaped integrated grid polishing wheel is higher than that of the ordinary plane wheel; in the total grinding time of 25 minutes, the grinding efficiency and grinding amount of the cymbal-shaped tray grid polishing wheel and the cymbal-shaped integrated grid polishing wheel are greater than those of the ordinary plane wheel; within the time range of 25 minutes, as time goes by, the grinding efficiency of the ordinary plane wheel decreases faster than that of the tray grid polishing wheel and the cymbal-shaped integrated grid polishing wheel.

[0119] In group B, the ordinary flap wheel of the prior art is compared with the laminated covered grid polishing wheel and the wound covered grid polishing wheel of the present invention; it can be seen from Table 1 that in each time period, the grinding amount (grinding efficiency) of the laminated covered grid polishing wheel and the wound covered grid polishing wheel is higher than that of the ordinary flap wheel; in the total grinding time of 25 minutes, the grinding amount and grinding efficiency of the wound covered grid polishing wheel and the laminated covered grid polishing wheel are both greater than those of the ordinary flap wheel.

[0120] In group C, the common handle wheel in the prior art is compared with the laminated handle grid polishing wheel and the winding handle grid polishing wheel of the present invention; it can be seen from Table 1 that in each time period, the grinding amount (grinding efficiency) of the laminated handle grid polishing wheel and the winding handle grid polishing wheel is higher than that of the common handle wheel; in the total grinding time of 25 minutes, the grinding efficiency and grinding amount of the winding handle grid polishing wheel and the laminated handle grid polishing wheel are greater than those of the common handle wheel; within the time range of 25 minutes, as time goes by, the grinding efficiency of the common handle wheel decreases faster than that of the laminated handle grid polishing wheel and the winding handle grid polishing wheel.

[0121] In group D, the conventional nylon wheel of the prior art is compared with the laminated columnar grid polishing wheel and the winding columnar grid polishing wheel of the present invention; it can be seen from Table 1 that in each time period, the grinding amount (grinding efficiency) of the laminated columnar grid polishing wheel and the winding columnar grid polishing wheel is higher than that of the conventional nylon wheel. In the total grinding time of 25 minutes, the grinding amount (grinding efficiency) of the laminated columnar grid polishing wheel and the winding columnar grid polishing wheel is greater than that of the conventional nylon wheel; within the time range of 25 minutes, as time goes by, the grinding efficiency of the conventional nylon wheel decreases faster than that of the laminated columnar grid polishing wheel and the winding columnar grid polishing wheel.

[0122] It can be seen from Group A, Group B, Group C and Group D that the grinding efficiency of the grid polishing wheel of the present invention decreases slowly and the grinding performance is more stable; it can be seen from Group B, Group C and Group D that the grinding efficiency of the winding type grid polishing wheel is slightly greater than that of the laminated type grid polishing wheel.

[0123] 2. Comparative test experiment 2:

[0124] (I) Types of test samples:

[0125] (1) A laminated grid polishing wheel made of hemp mesh cloth, specifically: a cymbal-shaped integrated grid polishing wheel.

[0126] (2) The polishing wheels in the prior art include: flat emery cloth wheels, cymbal-shaped resin grinding wheels, disc-shaped resin grinding wheels

[0127] (II) Test sample grouping:

[0128] Group E: cymbal-shaped integrated grid polishing wheel, flat emery cloth wheel, cymbal-shaped resin grinding wheel, disc-shaped resin grinding wheel; among them, the product specifications are: 100×8×16 (wheel body diameter D×wheel body thickness h×wheel body through hole diameter d, unit is mm).

[0129] (III) Description of test method:

[0130] The cymbal-shaped integrated grid grinding wheel, flat emery cloth wheel, cymbal-shaped resin grinding wheel and disc-shaped resin grinding wheel of the same specifications in group E were used to grind A3 steel under the same grinding conditions, and the grinding amount, grinding efficiency, grinding ratio and grinding point temperature of these four grinding wheels were compared.

[0131] In group E, the abrasive grain size of the grinding wheels is 60#, and the grinding objects are all A3 steel.

[0132] (IV) Indicator calculation method:

[0133] Grinding amount: the amount of material removed from the workpiece, in g;

[0134] Grinding efficiency: the weight of the workpiece ground per unit time, in g / min; that is, grinding efficiency = grinding amount / grinding time;

[0135] Grinding ratio: the ratio of the material removal of the workpiece to the wear of the grinding wheel;

[0136] Grinding point temperature: the workpiece temperature at the contact point between the grinding wheel and the workpiece, unit: °C;

[0137] (V) Test results:

[0138] The total grinding time of the test group E is 60 min. The results of the grinding indicators of the test group E: grinding efficiency, grinding ratio, and grinding point temperature are shown in Table 2.

[0139] Table 2 Grinding index test results 2

[0140]

[0141] In Group E, the laminated cymbal-shaped integrated grid polishing wheel of the present invention with the same specifications is compared with the cymbal-shaped resin grinding wheel and disc-shaped resin grinding wheel in the prior art; it can be seen from Table 2 that within the grinding time of 20 minutes, the grinding amount, grinding efficiency and grinding ratio of the cymbal-shaped integrated grid polishing wheel of the present invention are greater than those of the flat emery cloth wheel, cymbal-shaped resin grinding wheel and disc-shaped resin grinding wheel in the prior art; and the grinding point temperature of the cymbal-shaped integrated grid polishing wheel of the present invention is much lower than those of the flat emery cloth wheel, cymbal-shaped resin grinding wheel and disc-shaped resin grinding wheel in the prior art.

[0142] To sum up, the grid polishing wheel of the present invention is easy to use and has strong versatility compared with the polishing wheels in the prior art. It can replace various types of polishing wheels in the prior art and has strong market value and engineering application value. The grid polishing wheel of the present invention has better grinding ability, grinding efficiency, heat dissipation ability and chip removal ability, and has certain rigidity and elasticity.

[0143] The present invention is not limited to the above-mentioned specific embodiments, but extends to any new features or any new combination disclosed in this specification, as well as any new method or process steps or any new combination disclosed.

Claims

1. A grid polishing wheel, characterized in that: The wheel body (500) is formed by bonding and curing a plurality of layers of mesh cloth (100), each layer of mesh cloth (100) having an abrasive (200) attached thereto, and mesh holes (130) of the mesh cloth having an abrasive (200) attached thereto; in any layer of mesh cloth (100), at least part of the mesh holes are not blocked; The mesh holes (130) of each layer of mesh cloth and the mesh holes (130) of adjacent mesh cloths are connected to form a gap (300) in the wheel body, and the abrasive (200) is attached to the gap (300); For the abrasive (200) attached to any layer of mesh cloth (100), part of the abrasive (200) is located in the mesh holes (130) of the abrasive (200), and part of the abrasive (200) is located at the mesh holes (130) of the adjacent mesh cloth; The mesh holes (130) of adjacent mesh cloths are aligned with each other; or, the mesh holes (130) of adjacent mesh cloths are staggered; The abrasive (200) is attached to each layer of mesh cloth (100) via an adhesive layer (400), and a plurality of layers of mesh cloth (100) are bonded and cured via the adhesive layer (400) to form the wheel body (500); The adhesive layer (400) contains reinforced chopped fibers or whiskers for enhancing the mechanical properties of the mesh cloth; The mechanical properties of the mesh cloth (100) in the warp direction and the weft direction are substantially the same; A plurality of layers of mesh cloth (100) are stacked to form the wheel body (500); or, a plurality of layers of mesh cloth (100) are rolled to form the wheel body (500); a wheel body through hole (501) is provided in the middle of the wheel body (500); The grid polishing wheel is a cymbal-shaped tray grid polishing wheel, a cymbal-shaped integrated grid polishing wheel, a covered grid polishing wheel, a handle grid polishing wheel, a columnar grid polishing wheel or a sheet grid polishing wheel; wherein, The cymbal-shaped tray grid polishing wheel comprises the wheel body (500), one end surface of the wheel body (500) is connected to a cymbal-shaped tray (510), the middle of the tray (510) is provided with a tray through hole (511), and the tray through hole (511) is substantially coaxial with the wheel body through hole (501); The cymbal-shaped integrated grid polishing wheel comprises the wheel body (500), the middle part of the wheel body (500) having a cymbal-shaped portion (520), the cymbal-shaped portion (520) being formed by a concave middle part of one end surface of the wheel body (500) and a convex middle part of the other end surface, the wheel body through hole (501) being located in the middle part of the cymbal-shaped portion (520); The covered grid polishing wheel comprises the wheel body (500), the two ends of the wheel body (500) are connected to end covers (530), the middle of the end cover (530) is provided with an end cover through hole (531), and the end cover through hole (531) is substantially coaxial with the wheel body through hole (501); The grid polishing wheel with a handle comprises the wheel body (500), and a handle rod (540) is connected to the wheel body through hole (501); The columnar grid polishing wheel comprises the wheel body (500), and the thickness of the wheel body (500) is h≥10 mm; The sheet-shaped grid polishing wheel comprises the wheel body (500), and the thickness of the wheel body (500) is less than 10 mm.

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