Ultrathin glass plate edge section processing method based on shape of thin film for processing

Abstract

The invention discloses an ultra-thin glass plate edge section processing method based on the shape of a film for processing, which comprises the following steps: S1, preparing a plurality of ultra-thin glass plates to be processed, and cutting the ultra-thin glass plates into required sizes and shapes; s2, preparing a thin film for processing with the same shape as the cut ultra-thin glass plate, and alternately placing the ultra-thin glass plate and the thin film for processing for lamination to form a glass laminated block; s3, grinding the side surface of the glass laminated block, and controlling the edge section shape of the ultra-thin glass plate according to the edge shape of the selected thin film for processing; and S4, separating the ground glass laminated block, and removing the thin film to obtain the ultrathin glass plate with the special edge section. The method has the advantages that the thin film for processing can be used for performing various processing on the lateral shapes of the ultrathin glass plate with different use purposes to improve the performance of the ultrathin glass plate, various cross section shapes of the ultrathin glass plate can be realized only by replacing the thin film for processing, the processing technology is simplified, and the production capacity is improved.

Description

Technical Field

[0001] The invention relates to the technical field of ultra-thin glass plate processing, and in particular to an ultra-thin glass plate edge section processing method based on the shape of a processing film. Background Art

[0002] In the display industry, ultra-thin glass UTG (Ultra Thin Glass) refers to the tempered glass material component used for the cover window of the display. The thickness of the ultra-thin glass plate is less than about 100 microns, which is very thin. It can not only be folded flexibly, but also has the scratch resistance of glass materials. UTG can be used as a cover for folding screens.

[0003] To shape these ultra-thin glass sheets, the following steps are involved: Steps for preparing an ultra-thin glass sheet for processing; The step of generating a protective coating on the surface of the ultra-thin glass sheet; The step of cutting the glass so that it can be cut to the required size; The step of stacking and bonding the cut multiple ultra-thin glass sheets into multiple blocks; The cross section of the block-shaped laminated ultra-thin glass plate is polished with a roller brush to obtain the desired cross section shape; The step of debonding and separating the polished ultra-thin glass laminated blocks, removing the protective coating layer from each ultra-thin glass plate and separating them; Steps for cleaning and inspecting the processed ultra-thin glass plate.

[0004] However, according to the previous process, the edge side of the ultra-thin glass plate is directly processed into a flat shape or a curved shape with a small curvature, which has limitations in processing various edge section shapes. In addition, it is difficult to achieve the ultra-thin glass plate required by foldable displays with only these shapes. In addition, if complex processing techniques are added to process various edge section shapes, there will also be problems such as reduced production capacity, reduced yield rate, and insufficient efficiency. Summary of the invention

[0005] The purpose of the present invention is to provide a method for processing the edge section of an ultra-thin glass plate based on the shape of a processing film, which can use the processing film to perform various processing on the lateral shapes of the ultra-thin glass plate for different purposes, and improve the performance of the ultra-thin glass plate by processing various ultra-thin glass plate sections. In addition, by only replacing the processing film, various ultra-thin glass plate cross-sectional shapes can be achieved, thereby simplifying the processing technology of the ultra-thin glass plate and improving the production capacity.

[0006] The above technical objectives of the present invention are achieved through the following technical solutions: A method for processing an edge section of an ultra-thin glass plate based on the shape of a processing film, characterized in that it comprises the following steps: S1, preparing a plurality of ultra-thin glass sheets to be processed and cutting them into required sizes and shapes; S2, preparing a processing film of the same shape as the cut ultra-thin glass plate, and alternately placing the ultra-thin glass plate and the processing film for lamination to form a glass laminated block; S3, grinding the side of the glass laminate block, and controlling the edge section shape of the ultra-thin glass plate according to the edge shape of the selected processing film; S4, separating the ground glass laminated blocks, removing the thin film to obtain an ultra-thin glass plate with a special edge cut surface.

[0007] Preferably, the edge of the ultra-thin glass sheet in S1 is vertically cut by a cutting device, and the cutting device is selected from one of a roller cutting machine, a laser cutting machine or a water jet cutting machine.

[0008] Preferably, the size of the ultra-thin glass plate and the processing film are both 5 inches to 23 inches.

[0009] Preferably, the thickness of the ultra-thin glass plate is 20-300 μm, and the thickness of the processing film is 100-400 μm.

[0010] Preferably, the processing film is made of PET material.

[0011] Preferably, the edge of the processing film is horizontally provided with grooves on the upper and lower sides, the inner angles of the grooves are right angles, and the upper and lower grooves are symmetrically arranged. The curvature of the edge surface of the ultra-thin glass plate is adjusted by controlling the horizontal width d of the grooves, and the horizontal width d of the grooves is 20~400μm.

[0012] Preferably, the edges of the processing film are horizontally provided with grooves on the upper and lower sides, the inclined collapse angle of the grooves is an obtuse angle, and the upper and lower grooves are symmetrically arranged. The lateral inclination of the edge of the ultra-thin glass plate is adjusted by controlling the inclined collapse angle and the horizontal width d of the grooves, and the horizontal width d of the grooves is 20~400μm.

[0013] Preferably, a groove is horizontally provided on the upper or lower side of the edge of the processing film, so that the cross-sectional shape of the edge of the ultra-thin glass plate after processing is an asymmetric structure.

[0014] Preferably, the ultra-thin glass sheet with a special edge cut surface is subsequently subjected to additional strengthening, cleaning and inspection steps.

[0015] In summary, the beneficial effects of the present invention are as follows: the present invention forms a glass laminate block by laminating the cut ultra-thin glass plates in the up-down direction, and placing processing films for controlling the edge section shape of the ultra-thin glass plates on the upper and lower surfaces of the ultra-thin glass plates, alternately laminating the ultra-thin glass plates and the processing films, and grinding and polishing the side surfaces of the glass laminate block into the edge section shape of the ultra-thin glass plates to be used. Therefore, by using processing films of different shapes for processing, the side shapes of the ultra-thin glass plates for different purposes can be processed to different degrees, and the performance of the ultra-thin glass plates can be improved by processing the edge sections of the ultra-thin glass plates of different shapes. In addition, only the processing films need to be replaced, and different types of processing films can be used to achieve a variety of edge section shapes of the ultra-thin glass plates, thereby simplifying the processing technology of the ultra-thin glass plates and improving the production capacity. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a detailed schematic diagram of the process of processing the shape of the ultra-thin glass plate according to the prior art; Figure 2 is a schematic diagram of the cross-sectional shape of an ultra-thin glass plate that can be obtained according to the ultra-thin glass plate shape processing method of the prior art; Figure 3 It is a process diagram of the present invention; Figure 4 It is a detailed schematic diagram of the processing method of the present invention; Figure 5 It is a drawing of a processing film formed by a single portion of the present invention; Figure 6 It is a comparison diagram of the different shapes of films used in the processing of the present invention and the corresponding cross-sectional shapes of the ultra-thin glass plates. DETAILED DESCRIPTION

[0017] The specific implementation manner of the present invention is further described below in conjunction with the accompanying drawings, and this embodiment does not constitute a limitation of the present invention.

[0018] like Figure 1 As shown, in the prior art, in order to process the shape of these ultra-thin glass plates 1, the following steps are included: The step of preparing the ultra-thin glass sheet 1 for processing; A step of forming a protective coating 2 on the surface of the ultra-thin glass plate 1; The step of cutting the glass so that it can be cut to the required size; stacking and bonding the cut multiple ultra-thin glass plates 1 into multiple blocks 3; The cross section of the block-shaped laminated ultra-thin glass plate 1 is polished with a roller brush 4, and a desired cross section shape can be obtained after polishing; The step of debonding and separating the plurality of ultra-thin glass plates 1 after grinding, removing the protective coating 2 from each ultra-thin glass plate 1 and separating them; The process of cleaning and inspecting the processed ultra-thin glass plate 1.

[0019] like Figure 2 As shown, the edge side of the ultra-thin glass plate 1 is directly processed into a flat shape or a curved shape with a small curvature, such as Figure 2 (a) and Figure 2 (b) It can be seen that there are limitations in processing various cross-sectional shapes.

[0020] The present invention comprises the following steps: S1, preparing a plurality of ultra-thin glass plates 1 to be processed, and cutting them into required sizes and shapes; S2, preparing a processing film 20 having the same shape as the cut ultra-thin glass plate 1, and alternately placing the ultra-thin glass plate 1 and the processing film 20 for lamination to form a glass lamination block 30; S3, the side of the glass laminate block 30 can be ground by the roller brush 4, and the edge section shape of the ultra-thin glass plate 1 can be controlled according to the edge shape of the selected processing film 20, so that ultra-thin glass plates 1 with the same cross-sectional shape can be processed at one time; S4, separating the ground glass laminated block 30, and removing the thin film to obtain the ultra-thin glass plate 1 with a special edge cut surface.

[0021] Detailed process steps: Figure 3 As shown, the edge of the ultra-thin glass plate 1 in S1 is vertically cut by a cutting device, and the cutting device is selected from one of a roller cutting machine, a laser cutting machine or a water jet cutting machine.

[0022] The sizes of the ultra-thin glass plate 1 and the processing film 20 are both 5 inches to 23 inches, the thickness of the ultra-thin glass plate 1 is 20~300μm, and the thickness of the processing film 20 is 100~400μm. The processing film 20 not only protects the ultra-thin glass plate 1 and temporarily bonds the laminated ultra-thin glass plates 1, but also controls the lateral shape of the edge of the ultra-thin glass plate 1.

[0023] The processing film 20 is made of PET material.

[0024] like Figure 5 As shown, Figure 5 (a) is the front view, Figure 5(b) is a side view, in which grooves 21 are horizontally arranged on the upper and lower edges of the processing film 20, and the inner angles of the grooves 21 are right angles. The upper and lower grooves 21 are symmetrically arranged, and the curvature of the edge surface of the ultra-thin glass plate 1 is adjusted by controlling the horizontal width d of the grooves 21. The horizontal width d of the grooves is 20~400μm.

[0025] The edges of the processing film 20 are horizontally provided with grooves 21 at upper and lower sides. The grooves 21 are inclined and collapsed at an obtuse angle. The upper and lower grooves 21 are symmetrically arranged. The lateral inclination of the edge of the ultra-thin glass plate 1 is adjusted by controlling the horizontal width d of the grooves. The horizontal width d of the grooves is 20~400μm.

[0026] A groove 21 is horizontally formed on the upper or lower side of the edge of the processing film 20 , so that the cross-sectional shape of the edge of the ultra-thin glass plate 1 after processing is an asymmetric structure.

[0027] The ultra-thin glass plate 1 with a special edge cut surface is then subjected to additional strengthening, cleaning and inspection steps.

[0028] like Figure 6 As shown, in order to process the edge region of the cross-sectional shape of the ultra-thin glass plate 1 into various shapes, it is necessary to use a processing film 20 with different edge shapes.

[0029] in Figure 6 (a) The cross-sectional shape of the processing film 20 follows the cut shape, and the obtained cross-sectional shape of the ultra-thin glass plate 1 is perpendicular to the edge region.

[0030] Figure 6 (b) with Figure 6 (c), in order to process the corners of the cut surface of the ultra-thin glass plate 1 into a curved surface, grooves 21 are horizontally arranged on the upper and lower edges of the processing film 20, and the inner angles of the grooves 21 are right angles. There is a columnar protrusion between the two groups of grooves 1. By controlling the horizontal width d of the grooves 21, the curvature of the upper and lower curved surfaces of the edge of the ultra-thin glass plate 1 can be adjusted, so that different arc chamfers of the cut surface of the edge of the ultra-thin glass plate 1 can be obtained, such as Figure 6 As shown in (b), in order to increase the curvature of the curved surface at the edge of the thin plate glass 1, the horizontal width d of the groove 21 should be lengthened, as shown in FIG. Figure 6 As shown in (c), in order to reduce the curvature of the curved surface at the edge of the ultra-thin glass plate 1, the horizontal width d of the groove 21 is shortened.

[0031] Figure 6In (d), grooves 21 are horizontally provided on the upper and lower edges of the processing film 20, and the inclined collapse angle of the grooves 21 is an obtuse angle, that is, the edge of the processing film 20 is polygonal, and the upper and lower grooves 21 are symmetrically arranged. The inclination of the edge of the ultra-thin glass plate 1 is adjusted by controlling the inclined collapse angle and the horizontal width d of the grooves 21. The horizontal width d of the grooves is 20~400μm. In order to increase the inclination of the edge area of ​​the ultra-thin glass plate 1, the horizontal width d of the grooves 21 is shortened, and in order to reduce the inclination of the edge area of ​​the ultra-thin glass plate 1, the horizontal width d of the grooves 21 is lengthened.

[0032] The upper and lower grooves 21 of the processing film 20 are of the same shape, that is, the edge shape of the processing film 20 is symmetrical, so the shape of the edge area of ​​the ultra-thin glass plate 1 is also symmetrical.

[0033] In order to process only the edge area where the top surface or the bottom surface of the ultra-thin glass plate 1 intersects with the side surface into a curved surface, a groove 21 is horizontally provided on the top or bottom surface of the edge of the processing film 20, so that the cross-sectional shape of the edge of the ultra-thin glass plate 1 after processing is an asymmetric structure. Figure 6 As shown in FIG. 5 , by controlling the horizontal width d of the slot 21, the curvature of the curved surface of the edge separation area of ​​the ultra-thin glass plate 1 can also be controlled. Figure 5 The inclined collapse angle of the slot 21 at the middle d is controlled to be an obtuse angle.

[0034] The present invention forms a glass laminate block 30 by laminating the cut ultra-thin glass plates 1 in the upper and lower directions, and placing a processing film 20 for controlling the edge section shape of the ultra-thin glass plates 1 on the upper and lower surfaces of the ultra-thin glass plates 1, and alternately laminating the ultra-thin glass plates 1 and the processing film 20, and grinding and polishing the side of the glass laminate block 30 into the edge section shape of the ultra-thin glass plates 1 to be used. Therefore, by using processing films 20 of different shapes for processing, the side shapes of the ultra-thin glass plates 1 for different purposes can be processed to different degrees, and the performance of the ultra-thin glass plates 1 can be improved by processing the edge sections of different ultra-thin glass plates 1. In addition, only the processing film 20 is replaced, and different types of processing films 20 are used to achieve a variety of edge section shapes of the ultra-thin glass plates 1, thereby simplifying the processing technology of the ultra-thin glass plates 1 and improving the production capacity.

[0035] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Those skilled in the art may make various modifications or equivalent substitutions to the present invention within the essence and protection scope of the present invention, and such modifications or equivalent substitutions should also be deemed to fall within the protection scope of the technical solution of the present invention.

Claims

1. A method for processing the edge section of an ultra-thin glass plate based on the shape of a processing film, characterized in that: The steps include: S1, preparing a plurality of ultra-thin glass sheets to be processed and cutting them into required sizes and shapes; S2, preparing a processing film of the same shape as the cut ultra-thin glass plate, and alternately placing the ultra-thin glass plate and the processing film for lamination to form a glass laminated block; S3, grinding the side of the glass laminate block, and controlling the edge section shape of the ultra-thin glass plate according to the edge shape of the selected processing film; S4, separating the ground glass laminated blocks, removing the thin film to obtain an ultra-thin glass plate with a special edge cut surface.

2. The method for processing the edge section of an ultra-thin glass plate based on the shape of a processing film according to claim 1, characterized in that: In S1, the edge of the ultra-thin glass plate is vertically cut by a cutting device, and the cutting device is selected from one of a roller cutting machine, a laser cutting machine or a water jet cutting machine.

3. The method for processing the edge section of an ultra-thin glass plate based on the shape of a processing film according to claim 1, characterized in that: The sizes of the ultra-thin glass plate and the processing film are both 5 inches to 23 inches.

4. The method for processing the edge section of an ultra-thin glass plate based on the shape of a processing film according to claim 1, characterized in that: The thickness of the ultra-thin glass plate is 20-300 μm, and the thickness of the processing film is 100-400 μm.

5. The method for processing the edge section of an ultra-thin glass plate based on the shape of a processing film according to claim 1, characterized in that: The processing film is made of PET material.

6. The method for processing the edge section of an ultra-thin glass plate based on the shape of a processing film according to claim 1, characterized in that: The edges of the processing film are horizontally provided with grooves at the upper and lower parts, the inner angles of the grooves are right angles, and the upper and lower grooves are symmetrically arranged. The curvature of the edge surface of the ultra-thin glass plate is adjusted by controlling the horizontal width d of the grooves, and the horizontal width d of the grooves is 20~400μm.

7. The method for processing the edge section of an ultra-thin glass plate based on the shape of a processing film according to claim 1, characterized in that: The edges of the processing film are horizontally provided with grooves at the upper and lower parts, the inclined collapse angle of the grooves is an obtuse angle, and the upper and lower grooves are symmetrically arranged. The lateral inclination of the edge of the ultra-thin glass plate is adjusted by controlling the inclined collapse angle and the horizontal width d of the grooves, and the horizontal width d of the grooves is 20~400μm.

8. The method for processing the edge section of an ultra-thin glass plate based on the shape of a processing film according to claim 1, characterized in that: A groove is horizontally arranged on the upper or lower side of the edge of the processing film, and the cross-sectional shape of the edge of the ultra-thin glass plate after processing is an asymmetric structure.

9. The method for processing edge section of an ultra-thin glass plate based on the shape of a processing film according to claim 1, characterized in that: The ultra-thin glass sheets with special edge cuts are then subjected to additional strengthening, cleaning and inspection processes.

Images