Curved glass polishing apparatus and polishing method

Abstract

The application provides a curved glass polishing device and a polishing method, comprising a workbench, a fixing assembly arranged on the workbench, and a polishing assembly. The polishing assembly has a polishing state close to the fixing assembly and a to-be-polished state away from the fixing assembly. The polishing assembly comprises a rotating shaft, a connecting structure and a polishing wool structure. The connecting structure is connected with the rotating shaft, and the polishing wool structure is connected with the connecting structure. The polishing wool structure comprises a first polishing wool and a second polishing wool. The surface of the first polishing wool away from the connecting structure is a plane, and the surface of the second polishing wool away from the connecting structure is a profiled surface. The technical scheme of the application effectively solves the problem of poor surface quality of the bending area in the polishing process of the curved glass in the prior art.

Description

Technical Field

[0001] This application relates to the technical field of glass processing, and more particularly to a curved glass polishing apparatus and polishing method. Background Technology

[0002] Curved glass has been widely used in people's daily lives, such as screens for electronic products and building facilities.

[0003] In the process of processing curved glass, it is generally necessary to polish the glass to ensure that the glass surface is flat and smooth, thereby improving the quality of the glass product.

[0004] In existing technologies, only the front and back sides of the glass are polished separately during the glass polishing process. This method can achieve good results in 2D glass polishing, but in 3D glass polishing, it cannot completely remove heavy indentations, mold marks, etc. in the glass bending area, resulting in poor surface quality of the glass product. Summary of the Invention

[0005] One of the technical problems this application aims to solve is the issue of poor surface quality in the bending area during the polishing process of curved glass.

[0006] To address the aforementioned technical problems, this application provides a curved glass polishing apparatus and polishing method.

[0007] A curved glass polishing apparatus according to this application includes: a worktable; a fixing component disposed on the worktable; and a polishing component having a polishing state close to the fixing component and a polishing state away from the fixing component. The polishing component includes a rotating shaft, a connecting structure, and a polishing cotton structure. The connecting structure is connected to the rotating shaft, and the polishing cotton structure is connected to the connecting structure. The polishing cotton structure includes a first polishing cotton and a second polishing cotton. The surface of the first polishing cotton away from the connecting structure is a plane, and the surface of the second polishing cotton away from the connecting structure is a contoured surface.

[0008] In some embodiments, the first polishing cotton includes a first connecting portion, a first elastic portion, and a first polishing portion. The first connecting portion is connected to a connecting structure, the first elastic portion is connected to the first connecting portion and disposed on the side of the first connecting portion away from the connecting structure, and the first polishing portion is connected to the first elastic portion and disposed on the side of the first elastic portion away from the first connecting portion.

[0009] In some embodiments, the second polishing cotton includes a second connecting portion, a second elastic portion, and a second polishing portion. The second connecting portion is connected to the connecting structure, the second elastic portion is connected to the second connecting portion and disposed on the side of the second connecting portion away from the connecting structure, and the second polishing portion is connected to the second elastic portion and disposed on the side of the second elastic portion away from the second connecting portion.

[0010] In some embodiments, the connection structure includes a first connecting segment, a second connecting segment, and a connecting block. The first connecting segment is connected to the rotating shaft, the second connecting segment is connected to the first connecting segment and the two are integrally formed. The connecting block and the second connecting segment are connected by fasteners, and the polishing component is connected to the side of the connecting block away from the rotating shaft.

[0011] In some embodiments, the first polishing cotton has a first connecting hole that extends through the entire first polishing cotton, and the second polishing cotton has a second connecting hole that extends through the entire second polishing cotton. Both the first polishing cotton and the second polishing cotton are connected to the connecting block by adhesive bonding.

[0012] In some embodiments, the projection of the polishing cotton structure in the vertical direction lies within the projection of the connecting structure in the vertical direction.

[0013] In some embodiments, the fixing component includes a first fixing structure and a second fixing structure. The first fixing structure has a first contoured surface that is consistent with the shape of the second side surface of the glass to be polished, and a first damping cloth is disposed within the first contoured surface. The second fixing structure has a second contoured surface that is consistent with the shape of the first side surface of the glass to be polished, and a second damping cloth is disposed within the second contoured surface.

[0014] In some embodiments, the curved glass polishing method employs the curved glass polishing apparatus described above. The curved glass polishing method includes the following steps: fixing the glass to be polished using a fixing component; polishing the bent area on the first side of the glass to be polished using a second polishing cotton and polishing liquid; polishing the first side of the glass to be polished using a first polishing cotton and polishing liquid; polishing the bent area on the second side of the glass to be polished using a second polishing cotton and polishing liquid; and polishing the second side of the glass to be polished using a first polishing cotton and polishing liquid.

[0015] In some embodiments, the polishing fluid comprises 10% to 25% solid particles, 0.1% to 2% pH adjuster, 0.5% to 2% bactericide, 2% to 10% defoamer, 1% to 8% cosolvent, 5% to 13% polymer dispersant, and water.

[0016] In some embodiments, the particle size of the solid particles gradually decreases.

[0017] Through the above technical solution, the curved glass polishing apparatus provided in this application uses a fixing component to fix the glass to be polished, and uses a second polishing cotton to polish the curved area of ​​the glass separately. This removes heavier surface quality defects such as mold marks and indentations in the curved area before using a first polishing cotton to polish the entire surface of the glass. This method results in a surface quality in the curved glass's curved area that is consistent with the surface quality of the flat area, leading to better overall quality. The technical solution of this application effectively solves the problem of poor surface quality in the curved area in existing technologies. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This paper shows a front view schematic diagram of the first polishing cotton of the curved glass polishing apparatus disclosed in an embodiment of this application; Figure 2 It shows Figure 1 A top view of the first polishing sponge in a curved glass polishing device; Figure 3 It shows Figure 1 A front view schematic diagram of the second polishing sponge in a curved glass polishing device; Figure 4 It shows Figure 1 A schematic diagram of the polishing components of a curved glass polishing device; Figure 5 It shows Figure 1 A left-side schematic diagram of the connection structure of the curved glass polishing device; Figure 6 It shows Figure 1 A top view of the connection structure of the curved glass polishing device; Figure 7 It shows Figure 1 A cross-sectional schematic diagram of the connection structure of the curved glass polishing device; Figure 8 It shows Figure 1 A cross-sectional schematic diagram of the worktable of the curved glass polishing device; Figure 9 It shows Figure 1 A front view schematic diagram of the fixing components of the curved glass polishing device; Figure 10 It shows Figure 1 A top view of the first fixed structure of the curved glass polishing device; Figure 11 It shows Figure 1 A front sectional view of the first fixed structure of the curved glass polishing device; Figure 12 It shows Figure 1 A left-side sectional view of the first fixed structure of the curved glass polishing device; Figure 13 It shows Figure 1 A cross-sectional schematic diagram of the second fixed structure of the curved glass polishing device; Figure 14 It shows Figure 1 A schematic diagram of the working process of a curved glass polishing device polishing the curved area of ​​the first side of the glass to be polished; Figure 15 It shows Figure 1 A schematic diagram of the working process of a curved glass polishing device polishing the curved area of ​​the second side of the glass to be polished; Figure 16 The yield rate of glass polished by the curved surface polishing method in the embodiments of this application is shown.

[0020] Explanation of reference numerals in the attached figures: 10. Worktable; 20. Fixing component; 21. First fixing structure; 211. First contouring surface; 22. Second fixing structure; 221. Second contouring surface; 30. Polishing component; 31. Rotating shaft; 32. Connecting structure; 321. First connecting section; 322. Second connecting section; 323. Connecting block; 33. Polishing cotton structure; 331. First polishing cotton; 3311. First connecting part; 3312. First elastic part; 3313. First polishing part; 3314. First connecting hole; 332. Second polishing cotton; 3321. Second connecting part; 3322. Second elastic part; 3323. Second polishing part; 3324. Second connecting hole. Detailed Implementation

[0021] The embodiments of this application will be further described in detail below with reference to the accompanying drawings and examples. The detailed description of the following embodiments and the accompanying drawings are used to illustrate the principles of this application by way of example, but should not be used to limit the scope of this application. This application can be implemented in many different forms and is not limited to the specific embodiments of the application herein, but includes all technical solutions falling within the scope of the claims.

[0022] These embodiments are provided to make the application thorough and complete, and to fully express the scope of the application to those skilled in the art. It should be noted that, unless otherwise specifically stated, the relative arrangement of components and steps, material composition, numerical expressions, and values ​​illustrated in these embodiments should be interpreted as merely exemplary and not as limiting.

[0023] It should be noted that, in the description of this application, unless otherwise stated, "a plurality of" means two or more; the terms "upper," "lower," "left," "right," "inner," and "outer," etc., indicating orientation or positional relationship, are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application. When the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0024] Furthermore, the terms "first," "second," and similar terms used in this application do not indicate any order, quantity, or importance, but are merely used to distinguish different parts. "Vertical" is not strictly vertical, but within the permissible margin of error. "Parallel" is not strictly parallel, but within the permissible margin of error. Terms such as "including" or "contains" mean that the element preceding the word encompasses the element listed after it, and do not exclude the possibility of encompassing other elements as well.

[0025] It should also be noted that, in the description of this application, unless otherwise expressly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this application depending on the specific circumstances. When a specific device is described as being located between a first device and a second device, an intermediary device may or may not be present between the specific device and the first or second device.

[0026] All terms used in this application have the same meaning as understood by one of ordinary skill in the art to which this application pertains, unless otherwise specifically defined. It should also be understood that terms defined in general dictionaries should be interpreted as having meanings consistent with their meanings in the context of the relevant art, and not as idealized or highly formalized, unless expressly defined herein.

[0027] Techniques, methods, and equipment known to those skilled in the art may not be discussed in detail, but where appropriate, they should be considered part of the specification.

[0028] like Figures 1 to 15As shown, the curved glass polishing apparatus disclosed in this application includes a worktable 10, a fixing component 20, and a polishing component 30. The fixing component 20 is disposed on the worktable 10. The polishing component 30 has a polishing state close to the fixing component 20 and a polishing state away from the fixing component 20. The polishing component 30 includes a rotating shaft 31, a connecting structure 32, and a polishing cotton structure 33. The connecting structure 32 is connected to the rotating shaft 31, and the polishing cotton structure 33 is connected to the connecting structure 32. The polishing cotton structure 33 includes a first polishing cotton 331 and a second polishing cotton 332. The surface of the first polishing cotton 331 away from the connecting structure 32 is a plane, and the surface of the second polishing cotton 332 away from the connecting structure 32 is a contoured surface.

[0029] By applying the technical solution of this embodiment, the glass to be polished is fixed using the fixing component 20, and the curved area of ​​the glass is polished separately using the second polishing cotton 332. This removes heavier surface quality defects such as mold marks and indentations in the curved area before the first polishing cotton 331 polishes the entire surface of the glass. This method results in a surface quality in the curved area of ​​the glass that is consistent with the surface quality of the flat area, leading to better overall quality. The technical solution of this embodiment effectively solves the problem of poor surface quality in the curved area in the prior art.

[0030] like Figure 1 and Figure 2 As shown, in this embodiment, the first polishing cotton 331 includes a first connecting portion 3311, a first elastic portion 3312, and a first polishing portion 3313. The first connecting portion 3311 is connected to the connecting structure 32. The first elastic portion 3312 is connected to the first connecting portion 3311 and is disposed on the side of the first connecting portion 3311 away from the connecting structure 32. The first polishing portion 3313 is connected to the first elastic portion 3312 and is disposed on the side of the first elastic portion 3312 away from the first connecting portion 3311. In this embodiment, the first elastic portion 3312 uses a material with a density of 55 kg / m³. Up to 65 kg / The sponge material used has a first elastic part 3312 with good elasticity, with an elastic modulus of 0.4 MPa to 0.8 MPa. When the elastic modulus is less than 0.4 MPa, the first elastic part 3312 is easily deformed and can easily twist during high-speed rotation, causing deformation of the connected first polishing part 3313. When the elastic modulus is greater than 0.8 MPa, the buffering performance of the first elastic part 3312 is poor, and the glass is subjected to excessive pressure from the polishing machine, resulting in severe wear on the glass surface. The first polishing part 3313 is made of damping cloth with multiple polishing micropores evenly distributed on it. The pore size of the polishing micropores is 20 μm to 30 μm. When the pore size is less than 20 μm, the grinding amount per unit time is low, and the polishing efficiency is low. When the pore size is greater than 30 μm, the surface of the first polishing part 3313 is relatively rough, and the surface quality of the polished glass product cannot meet the requirements.

[0031] like Figure 3 As shown, in this embodiment, the second polishing cotton 332 includes a second connecting portion 3321, a second elastic portion 3322, and a second polishing portion 3323. The second connecting portion 3321 is connected to the connecting structure 32. The second elastic portion 3322 is connected to the second connecting portion 3321 and is disposed on the side of the second connecting portion 3321 away from the connecting structure 32. The second polishing portion 3323 is connected to the second elastic portion 3322 and is disposed on the side of the second elastic portion 3322 away from the second connecting portion 3321. The second elastic portion 3322 is made of the same material as the first elastic portion 3312. The second polishing section 3323 uses damping cloth with multiple polishing micropores evenly distributed on it. The diameter of the polishing micropores is 35μm to 50μm. Surface quality defects such as indentations and mold marks in the glass bending area are relatively serious. Therefore, a damping cloth with a higher roughness needs to be used for a single polishing process. When the diameter is less than 35μm, the grinding amount per unit time is low, and the polishing efficiency is low. When the diameter is greater than 50μm, the surface of the second polishing section 3323 is relatively rough, and the surface quality of the polished glass product cannot meet the requirements.

[0032] like Figures 4 to 7As shown, in this embodiment, the connecting structure 32 includes a first connecting segment 321, a second connecting segment 322, and a connecting block 323. The first connecting segment 321 is connected to the rotating shaft 31, and the second connecting segment 322 is connected to the first connecting segment 321, and the two are integrally formed. The connecting block 323 is connected to the second connecting segment 322 by fasteners. The polishing assembly 30 is connected to the side of the connecting block 323 away from the rotating shaft 31. The end face of the first connecting segment 321 has a hole for the rotating shaft 31 to pass through. The first connecting segment 321 and the rotating shaft 31 are connected by bolts. The connecting block 323 provides an end face for easy connection to the polishing cotton structure 33, avoiding differences in material and size between the polishing cotton structure 33 and the connecting structure 32. The third connecting block 323 can be replaced according to the size of the polishing cotton structure 33.

[0033] like Figures 1 to 3 As shown, in the technical solution of this embodiment, the first polishing cotton 331 has a first connecting hole 3314, which penetrates the entire first polishing cotton 331. The second polishing cotton 332 has a second connecting hole 3324, which penetrates the entire second polishing cotton 332. The first polishing cotton 331 and the second polishing cotton 332 are both connected to the connecting block 323 by adhesive bonding. Both the first connecting hole 3314 and the second connecting hole 3324 are stepped holes. The first polishing cotton 331 and the second polishing cotton are first connected to the connecting structure 32 by fasteners to prevent the polishing cotton structure 33 from falling off during high-speed rotation. The first connecting part 3311 and the second connecting part 3321 are made of nylon hook and loop fasteners. The surface of the connecting block 323 is a hook surface to prevent the edges of the polishing cotton structure 33 from lifting under the action of friction during the polishing process.

[0034] like Figure 4 As shown, in this embodiment, the projection of the polishing cotton structure 33 in the vertical direction lies within the projection of the connecting structure 32 in the vertical direction. This ensures that the entire polishing cotton structure 33 adheres to the connecting structure 32, avoiding the problem of incomplete glass polishing caused by insufficient pressure applied to the glass surface by the polishing cotton structure 33 during the polishing process.

[0035] like Figures 8 to 13As shown, in the technical solution of this embodiment, the fixing component 20 includes a first fixing structure 21 and a second fixing structure 22. The first fixing structure 21 has a first contoured surface 211, which is consistent with the shape of the second side surface of the glass to be polished. A first damping cloth is disposed in the first contoured surface 211. The second fixing structure 22 has a second contoured surface 221, which is consistent with the shape of the first side surface of the glass to be polished. A second damping cloth is disposed in the second contoured surface 221. A first adsorption hole is provided at the bottom of the first contoured surface 211, which fixes the glass by vacuum adsorption. The first damping cloth protects the glass surface and increases the static friction force on the glass, preventing the glass from shaking and causing edge damage during rotation. A second adsorption hole is provided at the bottom of the second contoured surface 221, which fixes the glass by vacuum adsorption. The second damping cloth protects the glass surface and increases the static friction force on the glass, preventing the glass from shaking and causing edge damage during rotation.

[0036] like Figure 14 and Figure 15 As shown, this application also provides a method for polishing curved glass. The method uses the aforementioned curved glass polishing apparatus and includes the following steps: fixing the glass to be polished using a fixing component 20; polishing the bent area on the first side of the glass using a second polishing cotton 332 and polishing liquid; polishing the first side of the glass using a first polishing cotton 331 and polishing liquid; polishing the bent area on the second side of the glass using a second polishing cotton 332 and polishing liquid; and polishing the second side of the glass using a first polishing cotton 331 and polishing liquid. The first side is concave, and the second side is convex. The convex surface is the usable surface, therefore the smoothness requirement for the second side is higher than that for the first side. Since the glass will contact the surface of the fixing component 20, some minor scratches may occur during polishing. Therefore, the first side, which has a lower surface quality requirement, is polished first to ensure the surface quality of the second side. During the polishing process, the glass is first fixed on the first fixing structure 21. At this time, the second side of the glass is in contact with the first contour surface 211. After the bending part of the first side of the glass is locally polished, the whole side is polished. After the first side is polished, the glass is removed from the first fixing structure 21 and fixed on the second fixing structure 22. After the bending part of the second side of the glass is locally polished, the whole side is polished. The surface quality of the glass bending area and the flat area obtained by this method is consistent.

[0037] In this embodiment, the polishing fluid comprises 10% to 25% solid particles, 0.1% to 2% pH adjuster, 0.5% to 2% bactericide, 2% to 10% defoamer, 1% to 8% cosolvent, 5% to 13% polymer dispersant, and water. The solid particles are a mixture of rare earth oxides such as cerium oxide, lanthanum oxide, and praseodymium oxide in a ratio of 21:10:1. The pH adjuster is an alkaline substance such as sodium bicarbonate, which adjusts the pH of the polishing fluid to 8 to 10 to neutralize the acidic substances on the glass surface. A pH greater than 10 will cause corrosion of the glass surface. The bactericide is a mixture of methyldiethoxysilane quaternary ammonium salt, tetraethyl orthosilicate, organosilicon containing double bonds, methyltrimethoxysilane, and organotin catalyst. This bactericide does not react with glass and has a good antibacterial effect. The defoamer comprises methylsiloxane oil, sodium tripolyphosphate, sodium chloride, mannitol, and silica in a ratio of 1:1:6:2:1. The defoamer effectively removes foam generated during polishing, preventing uneven polishing. The polymer dispersant comprises polyacrylic acid, polymaleic acid, and salts, wherein the salts can be ammonium salts, polyacrylates, or copolymers of alkyl polyacrylates, acrylates, and ammonium salts. The polymer dispersant ensures uniform distribution and suspension of the dispersed solid particles within the liquid, resulting in more uniform polishing. In this embodiment, the solid particle size gradually decreases. When polishing the bent area on the first side using the second polishing cotton, the solid particle size is 1000nm to 1300nm; when polishing the entire first side using the first polishing cotton, the solid particle size is 800nm ​​to 1000nm; when polishing the bent area on the second side using the second polishing cotton, the solid particle size is 600nm to 800nm; when polishing the entire second side using the first polishing cotton, the solid particle size is 500nm to 600nm. Smaller solid particle size results in a smoother glass surface, but also lower grinding amount and polishing efficiency. Therefore, the solid particle size is selected according to the surface quality requirements and grinding amount to ensure high efficiency in glass polishing.

[0038] Six points were selected on the glass product. Points one, two, and three were located on the curved surface of the glass, while points four, five, and six were located on the flat surface. The thickness of the glass polished using the method described in this embodiment was randomly checked against that of glass polished using a traditional method. If the thickness was consistent, the surface was smooth and of good quality. In this experiment, when polishing the first side, the shaft speed was 400 r / min, the turntable speed was 0.06 r / min, the pressure was 4 mm, the polishing time was 40 min, and the polishing solution concentration was 1.18 g / L. When polishing the second side, the spindle speed was 90 r / min, the turntable speed was 0.5 r / min, the downward pressure was 4 mm, the polishing time was 7 min, and the polishing slurry concentration was 1.10 g / L. When polishing curved areas, the spindle speed is 350 r / min, the turntable speed is 0.5 r / min, the pressure is 3 mm, the polishing time is 12 min, and the polishing slurry concentration is 1.15 g / L. .

[0039] Table 1 shows the sampling results of glass thickness before polishing using the traditional method, and Table 2 shows the sampling results of glass thickness after polishing using the traditional method.

[0040] Table 1

[0041] Table 2

[0042] Table 3 shows the sampling inspection results of the glass thickness before polishing using the curved glass polishing method in this application embodiment, and Table 4 shows the sampling inspection results of the glass thickness after polishing using the curved glass polishing method in this application embodiment.

[0043] Table 3

[0044] Table 4

[0045] As shown in Tables 1 and 2, the thickness of the glass at the four, five, and six o'clock positions after polishing using traditional methods is generally less than the thickness at the one, two, and three o'clock positions. However, the curved glass polishing method described in this application produces glass with thicknesses at the one, two, and three o'clock positions that are essentially the same as those at the four, five, and six o'clock positions. Therefore, a comparison of Tables 1 to 4 shows that the thickness of the glass polished using the curved glass polishing method described in this application is more uniform than that polished using traditional methods, resulting in a better glass surface quality.

[0046] Traditional polishing methods typically use a mixture of solid particles and water. The surface quality of glass polished using this method and the curved glass polishing method described in this application were inspected separately, and their yield rates were compared. Table 5 shows the yield rate of glass polished using the traditional method, and Table 6 shows the yield rate of glass polished using the curved glass polishing method described in this application.

[0047] Table 5

[0048] Table 6

[0049] A comparison of Tables 5 and 6 shows that the yield rate of glass polished using the curved glass polishing method described in this application is almost identical to and more stable than that of glass polished using traditional methods. Figure 16 As shown.

[0050] In summary, the graphite mold polishes the indented area and performs local repairs on the indented area. A local polishing fixture (fixing component 20) is added, and the screw holes on the surface of the fixture are fixed to the base plate of the modified equipment. The curved glass is placed on the surface of the fixture, and a 1mm black damping cloth is added to the surface of the local polishing fixture. The damping cloth matches the cavity surface, protecting the glass surface after placement and achieving the effect of preventing scratches and wear on the product. The fixing chuck (connecting structure 32) of the equipment is modified so that the equipment can be equipped with a separately designed polishing cotton (polishing cotton structure 33). The polishing cotton is 30mm thick, with 100% damping cloth on one side and 100% sponge on the other side (hardness 80, density 60). After fixing the sponge to the modified chuck, the machine is started to perform local polishing on the bent area of ​​the glass.

[0051] The embodiments of this application have now been described in detail. To avoid obscuring the concept of this application, some details known in the art have not been described. Those skilled in the art can fully understand how to implement the technical solutions of this application based on the above description.

[0052] While specific embodiments of this application have been described in detail by way of examples, those skilled in the art should understand that the above examples are for illustrative purposes only and are not intended to limit the scope of this application. Those skilled in the art should understand that modifications can be made to the above embodiments or equivalent substitutions can be made to some technical features without departing from the scope and spirit of this application. In particular, as long as there is no structural conflict, the various technical features mentioned in the embodiments can be combined in any manner.

Claims

1. A method for polishing curved glass, characterized in that, The curved glass polishing method employs a curved glass polishing apparatus as described below. The curved glass polishing device includes: Workbench (10); A fixing component (20) is disposed on the worktable (10); A polishing assembly (30) has a polishing state near the fixing assembly (20) and a polishing state away from the fixing assembly (20). The polishing assembly (30) includes a rotating shaft (31), a connecting structure (32), and a polishing cotton structure (33). The connecting structure (32) is connected to the rotating shaft (31), and the polishing cotton structure (33) is connected to the connecting structure (32). The polishing cotton structure (33) includes a first polishing cotton (331) and a second polishing cotton (332). The surface of the first polishing cotton (331) away from the connecting structure (32) is flat, and the surface of the second polishing cotton (332) away from the connecting structure (32) is contoured. The first polishing cotton (331) includes a first connecting part (3311), a first elastic part (3312), and a first polishing part (3313). The first connecting part (3311) is connected to the connecting structure (32), and the first elastic part (3312) is connected to the first connecting part (3311) and disposed on the first connecting part (3313). 311) On the side away from the connecting structure (32), the first polishing part (3313) is connected to the first elastic part (3312) and disposed on the side of the first elastic part (3312) away from the first connecting part (3311). The first polishing part (3313) is made of damping cloth with a polishing micropore diameter of 20μm to 30μm. The second polishing cotton (332) includes a second connecting part (3321), a second elastic part (3322), and a second polishing part (3323). 21) Connected to the connecting structure (32), the second elastic part (3322) is connected to the second connecting part (3321) and disposed on the side of the second connecting part (3321) away from the connecting structure (32), the second polishing part (3323) is connected to the second elastic part (3322) and disposed on the side of the second elastic part (3322) away from the second connecting part (3321), the second polishing part (3323) is made of damping cloth with polishing micropore diameter of 35μm to 50μm; The method for polishing curved glass includes the following steps: The glass to be polished is fixed using the fixing component (20); The bending area on the first side of the glass to be polished is polished using the second polishing cotton (332) and polishing liquid; The first side surface of the glass to be polished is polished using the first polishing cotton (331) and the polishing liquid; The second polishing cotton (332) and the polishing liquid are used to polish the bent area on the second side of the glass to be polished; The second side of the glass to be polished is polished using the first polishing cotton (331) and the polishing liquid; The polishing fluid comprises 10% to 25% solid particles, 0.1% to 2% pH adjuster, 0.5% to 2% bactericide, 2% to 10% defoamer, 1% to 8% cosolvent, 5% to 13% polymer dispersant, and water. The solid particles are a mixture of cerium oxide, lanthanum oxide, and praseodymium oxide in a ratio of 21:10:

1. The pH adjuster is sodium bicarbonate, which adjusts the pH of the polishing fluid to 8 to 10. The bactericide is a mixture of methyldiethoxysilane quaternary ammonium salt, tetraethyl orthosilicate, organosilicon containing double bonds, methyltrimethoxysilane, and organotin catalyst. The defoamer includes methylsiloxane oil, sodium tripolyphosphate, sodium chloride, mannitol, and silica in a ratio of 1:1:6:2:

1. The polymer dispersant includes polyacrylic acid, polymaleic acid, and salt. The particle size of the solid particles gradually decreases. When the second polishing cotton is used to polish the bent area on the first side, the particle size of the solid particles is 1000nm to 1300nm; when the first polishing cotton is used to polish the entire first side, the particle size of the solid particles is 800nm ​​to 1000nm; when the second polishing cotton is used to polish the bent area on the second side, the particle size of the solid particles is 600nm to 800nm; and when the first polishing cotton is used to polish the entire second side, the particle size of the solid particles is 500nm to 600nm.

2. The method for polishing curved glass according to claim 1, characterized in that, The connection structure (32) includes a first connection segment (321), a second connection segment (322), and a connection block (323). The first connection segment (321) is connected to the rotating shaft (31), and the second connection segment (322) is connected to the first connection segment (321) and the two are integrally formed. The connection block (323) is connected to the second connection segment (322) by fasteners. The polishing component (30) is connected to the side of the connection block (323) away from the rotating shaft (31).

3. The method for polishing curved glass according to claim 2, characterized in that, The first polishing cotton (331) has a first connecting hole (3314) that extends through the entire first polishing cotton (331). The second polishing cotton (332) has a second connecting hole (3324) that extends through the entire second polishing cotton (332). The first polishing cotton (331) and the second polishing cotton (332) are connected to the connecting block (323) by adhesive bonding.

4. The method for polishing curved glass according to claim 3, characterized in that, The projection of the polishing cotton structure (33) in the vertical direction lies within the projection of the connecting structure (32) in the vertical direction.

5. The method for polishing curved glass according to claim 1, characterized in that, The fixing component (20) includes a first fixing structure (21) and a second fixing structure (22). The first fixing structure (21) has a first contoured surface (211) which is consistent with the shape of the second side surface of the glass to be polished. A first damping cloth is disposed in the first contoured surface (211). The second fixing structure (22) has a second contoured surface (221) which is consistent with the shape of the first side surface of the glass to be polished. A second damping cloth is disposed in the second contoured surface (221).

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