Glass grinding device for producing liquid crystal display screen

Abstract

The utility model discloses a glass grinding device for producing a liquid crystal display screen, and belongs to the field of display screen production equipment. According to the technical scheme, the glass grinding device for producing the liquid crystal display screen comprises a frame body and two sets of first conveying belts arranged on the frame body in parallel, second conveying belts are arranged on the first conveying belts, and conveying gaps used for conveying glass are formed between the first conveying belts and the second conveying belts. Automatic conveying of the glass plate can be achieved through friction force of the first conveying belt and the second conveying belt, high-frequency vibration of the glass plate when the grinding mechanism grinds the edges of the glass plate is prevented through the pressing mechanism, the production efficiency is remarkably improved, and the edges of the grinding area of the glass plate can be pressed and fixed through the pressing mechanism; the damage risk of the grinding mechanism to the glass plate is greatly reduced, and the damage rate in the glass plate grinding procedure is remarkably reduced.

Description

Technical Field

[0001] This utility model belongs to the field of display screen production equipment, and specifically relates to a glass grinding device for producing liquid crystal displays. Background Technology

[0002] Display glass is one of the important components of flat panel displays. After production, display glass needs to be cut according to the specified screen size. The edges of the cut glass are uneven and relatively sharp, which will affect the installation of the glass. In addition, the edge strength of the glass with burrs is weak. Therefore, the edges of the glass are ground to solve the above problems.

[0003] However, existing glass plates are generally fixed by glass clamps or suction cups during grinding, and the edges of the glass plate to be ground are usually suspended in the air. When the grinding roller comes into contact with the edge of the glass plate, the edge of the glass plate will generate high-frequency vibration. In addition, the initial strength of the edge of the glass plate is not high. Therefore, the glass plate is more likely to break during the grinding process, making the entire plate unusable and resulting in a high breakage rate. Utility Model Content

[0004] This invention provides a glass grinding apparatus for producing liquid crystal displays, thereby solving at least one of the aforementioned technical problems.

[0005] The technical solution adopted in this utility model is as follows:

[0006] A glass grinding apparatus for producing liquid crystal displays includes a frame and two sets of first conveyor belts arranged parallel to each other on the frame. A second conveyor belt is mounted on the first conveyor belt, and a conveying gap is formed between the first and second conveyor belts for conveying glass. A grinding mechanism and a pressing mechanism are located at the end of the first conveyor belt in the conveying direction on the frame. The pressing mechanism is located above the first conveyor belt and applies positive pressure to the display glass being conveyed to the grinding end of the grinding mechanism. The glass plate located within the conveying gap moves towards the end of the first conveyor belt in the conveying direction under the friction of the first and second conveyor belts, achieving automated conveying of the glass plate. The grinding mechanism is activated, and simultaneously, the lower end of the pressing mechanism moves downward to pressurize the glass plate against the surface of the first conveyor belt, preventing high-frequency vibration of the glass plate when the grinding mechanism grinds its edges. With the continuous operation of the first and second conveyor belts, the glass plate is completely pushed out. Simultaneously, the grinding mechanism grinds both sides of the glass plate, significantly improving production efficiency. The clamping mechanism can clamp and fix the edge of the glass plate grinding area, greatly reducing the risk of damage to the glass plate by the grinding mechanism and significantly reducing the breakage rate in the glass plate grinding process.

[0007] Preferably, the grinding mechanism includes a roller support that is slidably connected to the frame, and a plurality of grinding rollers are spaced apart on the roller support. The grinding rollers are adjacent to the outer side of the first conveyor belt. The roller support is slidably adjusted to match the width of the glass plate. After the adjustment is completed, when the glass plate is conveyed to the side of the roller support, the edge of the glass plate comes into contact with the grinding rollers and rubs against them, and the grinding rollers polish the edge of the glass plate.

[0008] Preferably, the frame is equipped with a telescopic cylinder, the telescopic end of which is fixedly connected to the roller bracket to drive the roller bracket to slide in a direction perpendicular to the first conveyor belt; the telescopic cylinder can automatically control the position of the roller bracket, so that the grinding roller and the edge of the glass plate are precisely matched, thereby improving the grinding quality of the edge of the glass plate.

[0009] Preferably, the clamping mechanism includes a mounting frame fixedly connected to the frame body. The mounting frame is equipped with a linear guide rail, and a slider is vertically slidably connected to the linear guide rail. A buffer shaft extending into the slider is located within the slider, and a wheel support is located at the lower end of the buffer shaft. Several pressure rollers are arranged side-by-side at the bottom of the wheel support. The arrangement of the linear guide rail and the slider allows for flexible adjustment of the pressure roller height to accommodate clamping and fixing glass plates of different thicknesses, and also allows for adjustment of the pressure exerted by the pressure rollers on the glass plate. The pressure rollers apply stable pressure to the glass plate while avoiding excessive friction, effectively reducing wear on the glass surface. Furthermore, the buffer shaft enhances the clamping effect of the pressure rollers, preventing the glass plate from shattering due to excessive pressure.

[0010] Preferably, the first conveyor belt has a first tensioning support in the middle, and the second conveyor belt has a second tensioning support in the middle. The first and second tensioning supports can respectively tension and support the belts of the first and second conveyor belts, and also keep the upper surface of the first conveyor belt and the lower surface of the second conveyor belt flat, thereby improving the conveying effect of the glass plate.

[0011] Preferably, both the first and second conveyor belts have a rubber layer on their outer walls. The rubber layer significantly improves the surface friction of the first and second conveyor belts, increasing the glass conveying efficiency. It also protects the glass panels within the conveying gaps, preventing them from breaking during transport.

[0012] Preferably, the roller support is provided with a limiting groove, and the frame is provided with a limiting shaft that slides with the limiting groove. The limiting groove and the limiting shaft can limit, guide, and position the sliding stroke of the roller support. When the limiting groove slides to the front end and abuts against the limiting shaft, the roller support is in its initial position, at which point the grinding roller is furthest from the first conveyor belt. Conversely, when the limiting groove slides to the rear end and abuts against the limiting shaft, the roller support is in the grinding position, making the position switching more precise.

[0013] Preferably, the outer wall of the pressure roller has a soft rubber layer. The soft rubber coating effectively protects the glass plate below, preventing it from breaking. In addition, it can further prevent the glass plate from breaking during the high-frequency vibration generated during the grinding process.

[0014] Due to the adoption of the above technical solution, the beneficial effects achieved by this utility model are as follows:

[0015] In this application, the glass plate located within the conveying gap moves towards the end of the first conveyor belt in the conveying direction under the friction of the first and second conveyor belts, realizing automated conveying of the glass plate. Simultaneously, the lower end of the pressing mechanism moves downward to apply pressure to the glass plate on the surface of the first conveyor belt, preventing high-frequency vibration of the glass plate during grinding. As the first and second conveyor belts continue to run, the glass plate is completely pushed out. At the same time, the grinding mechanism completes the grinding work on both sides of the glass plate, significantly improving production efficiency. The pressing mechanism effectively clamps and fixes the edges of the glass plate in the grinding area, greatly reducing the risk of damage to the glass plate by the grinding mechanism and significantly reducing the breakage rate during the glass plate grinding process. Attached Figure Description

[0016] Figure 1 This is one of the structural schematic diagrams of a specific embodiment of the present utility model;

[0017] Figure 2 This is a side sectional view of a specific embodiment of the present utility model;

[0018] Figure 3 This is the second structural schematic diagram of a specific embodiment of the present utility model;

[0019] Figure 4 For the present utility model Figure 3 Enlarged view of section A in the middle;

[0020] Figure 5 For the present utility model Figure 3 Enlarged view of section B.

[0021] In the diagram: 1. Frame; 11. Limiting shaft; 2. First conveyor belt; 21. First tensioning support; 3. Second conveyor belt; 31. Second tensioning support; 4. Grinding mechanism; 41. Roller bracket; 411. Limiting groove; 42. Grinding roller; 43. Telescopic cylinder; 5. Pressing mechanism; 51. Mounting frame; 52. Slider; 53. Wheel support; 54. Pressure roller. Detailed Implementation

[0022] To more clearly illustrate the overall concept of this utility model, a detailed description will be provided below with reference to the accompanying drawings.

[0023] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the scope of protection of the present invention is not limited to the specific embodiments disclosed below.

[0024] Furthermore, it should be understood in the description of this utility model that the terms "top", "bottom", "inner", "outer", "axial", "radial", "circumferential", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model 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. Therefore, they should not be construed as limitations on this utility model.

[0025] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a communication connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0026] In this invention, unless otherwise expressly specified and limited, the first feature "on" or "below" the second feature may be in direct contact with the first and second features, or indirect contact through an intermediate medium. In the description of this specification, references to terms such as "implementation," "example," "aspect," or "specific example" indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0027] Reference Figures 1 to 5 A glass grinding apparatus for producing liquid crystal displays includes a frame 1 and two sets of first conveyor belts 2 arranged in parallel on the frame 1. A second conveyor belt 3 is provided on the first conveyor belt 2. There is a conveying gap between the first conveyor belt 2 and the second conveyor belt 3 for conveying glass. A grinding mechanism 4 and a pressing mechanism 5 are provided at the end of the frame 1 in the conveying direction of the first conveyor belt 2. The pressing mechanism 5 is located above the first conveyor belt 2 and is used to apply positive pressure to the display glass conveyed to the grinding end of the grinding mechanism 4.

[0028] Those skilled in the art will understand that by mechanical or manual movement of the glass plate, the glass is moved to the starting end of the first conveyor belt 2 and inserted into the conveying gap between the first conveyor belt 2 and the second conveyor belt 3. The first conveyor belt 2 and the second conveyor belt 3 are started. The first conveyor belt 2 and the second conveyor belt 3 need to be at the same speed and rotate in opposite directions to avoid relative displacement between the first conveyor belt 2 and the second conveyor belt 3 and the glass plate located in the conveying gap, which would cause sliding friction and wear on the glass plate interface. The glass plate located in the conveying gap moves towards the end of the conveying direction of the first conveyor belt 2 under the action of the friction of the first conveyor belt 2 and the second conveyor belt 3, realizing the automated conveying of the glass plate. When the glass plate reaches the end of the conveying direction of the first conveyor belt 2, the grinding mechanism 4 is started. At the same time, the lower end of the pressing mechanism 5 moves down to cooperate with the surface of the first conveyor belt 2 to press the glass plate, preventing the glass plate from vibrating at high frequency when the grinding mechanism 4 grinds the edges of the glass plate. As the first conveyor belt 2 and the second conveyor belt 3 continue to run, the glass plate is completely pushed out. At the same time, the grinding mechanism 4 completes the grinding work on both sides of the glass plate, which significantly improves production efficiency. Moreover, the clamping mechanism 5 can clamp and fix the edge of the glass plate grinding area, greatly reducing the risk of damage to the glass plate by the grinding mechanism 4 and significantly reducing the breakage rate in the glass plate grinding process.

[0029] As a preferred embodiment of the grinding mechanism 4 in this application, refer to Figures 1-5 The grinding mechanism 4 includes a roller support 41 slidably connected to the frame 1. Several sets of grinding rollers 42 are spaced apart on the roller support 41, and the grinding rollers 42 are adjacent to the outer side of the first conveyor belt 2. After the width of the glass plate is determined, the roller support 41 is slidably adjusted to match the width of the glass plate. After adjustment, when the glass plate is conveyed to the side of the roller support 41, the edge of the glass plate comes into contact with the grinding rollers 42 and rubs against them. The grinding rollers 42 polish the edge of the glass plate. In addition, the roughness of the polished layer on the surface of the several grinding rollers 42 decreases sequentially along the conveying direction of the first conveyor belt 2, so that the edge of the glass plate is first coarsely polished and then finely polished when it passes through the several grinding rollers 42 in sequence, thereby improving the polishing effect of the edge of the glass plate.

[0030] Furthermore, the frame 1 is equipped with a telescopic cylinder 43, the telescopic end of which is fixedly connected to the roller bracket 41 to drive the roller bracket 41 to slide in a direction perpendicular to the first conveyor belt 2. The telescopic cylinder 43 can automatically control the position of the roller bracket 41, so that the grinding roller 42 is precisely matched with the edge of the glass plate, thereby improving the grinding quality of the glass plate edge.

[0031] As one specific implementation of the clamping mechanism 5, refer to Figures 1-5 The clamping mechanism 5 includes a mounting frame 51 fixedly connected to the frame 1. A linear guide rail is mounted on the mounting frame 51, and a slider 52 is vertically slidably connected to the linear guide rail. A buffer shaft extending into the slider 52 is located inside the slider 52. A wheel support 53 is located at the lower end of the buffer shaft, and several pressure rollers 54 arranged side-by-side are located at the bottom of the wheel support 53. The height of the pressure rollers 54 can be flexibly adjusted by the linear guide rail and the slider 52 to accommodate clamping and fixing glass plates of different thicknesses, and the pressure exerted by the pressure rollers 54 on the glass plate can also be adjusted. The pressure rollers 54 can apply stable pressure to the glass plate while avoiding excessive friction, effectively reducing wear on the glass plate surface. Furthermore, the buffer shaft enhances the clamping effect of the pressure rollers 54, preventing the glass plate from shattering due to excessive pressure.

[0032] As a preferred example of the above-described implementation method, refer to Figures 1-5 The first conveyor belt 2 has a first tensioning support 21 in the middle, and the second conveyor belt 3 has a second tensioning support 31 in the middle. The first tensioning support 21 and the second tensioning support 31 can respectively tension and support the belts of the first conveyor belt 2 and the second conveyor belt 3. In addition, they can keep the upper surface of the first conveyor belt 2 and the lower surface of the second conveyor belt 3 flat, thereby improving the conveying effect of the glass plate.

[0033] Furthermore, both the outer walls of the first conveyor belt 2 and the second conveyor belt 3 are provided with a rubber layer. The rubber layer can significantly improve the surface friction of the first conveyor belt 2 and the second conveyor belt 3, increase the glass conveying efficiency, and also protect the glass plates in the conveying gaps to prevent them from breaking during conveying.

[0034] As a preferred embodiment of the grinding mechanism 4, refer to Figure 5The roller support 41 is provided with a limiting groove 411, and the frame 1 is provided with a limiting shaft 11 that slides with the limiting groove 411. The limiting groove 411 and the limiting shaft 11 can limit, guide and position the sliding stroke of the roller support 41. When the limiting groove 411 slides to the front end and abuts against the limiting shaft 11, the roller support 41 is in the initial position, at which time the grinding roller 42 is farthest from the first conveyor belt 2. Conversely, when the limiting groove 411 slides to the rear end and abuts against the limiting shaft 11, the roller support 41 is in the grinding position, making the position switching more precise.

[0035] Furthermore, the outer wall of the pressure roller 54 has a soft rubber layer. The soft rubber coating can effectively protect the glass plate below and prevent it from breaking. In addition, it can also prevent the glass plate from breaking during the high-frequency vibration generated during the grinding process.

[0036] For any parts not mentioned in this utility model, existing technologies can be used or referenced.

[0037] The various embodiments in this specification are described in a progressive manner. The same or similar parts between the various embodiments can be referred to each other. Each embodiment focuses on describing the differences from other embodiments.

[0038] The above description is merely an embodiment of this utility model and is not intended to limit the scope of this utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principle of this utility model should be included within the scope of the claims of this utility model.

Claims

1. A glass grinding apparatus for producing liquid crystal displays, characterized in that, The device includes a frame (1) and two sets of first conveyor belts (2) arranged in parallel on the frame (1). A second conveyor belt (3) is provided on the first conveyor belt (2). There is a conveying gap between the first conveyor belt (2) and the second conveyor belt (3) for conveying glass. The frame (1) is provided with a grinding mechanism (4) and a pressing mechanism (5) at the end of the conveying direction of the first conveyor belt (2). The pressing mechanism (5) is located above the first conveyor belt (2) and is used to apply positive pressure to the display glass conveyed to the grinding end of the grinding mechanism (4).

2. The glass grinding apparatus for producing liquid crystal displays according to claim 1, characterized in that, The grinding mechanism (4) includes a roller support (41) that is slidably connected to the frame (1). Several sets of grinding rollers (42) are spaced apart on the roller support (41). The grinding rollers (42) are adjacent to the outside of the first conveyor belt (2).

3. The glass grinding apparatus for producing liquid crystal displays according to claim 2, characterized in that, The frame (1) is equipped with a telescopic cylinder (43), and the telescopic end of the telescopic cylinder (43) is fixedly connected to the roller bracket (41) to drive the roller bracket (41) to slide in a direction perpendicular to the first conveyor belt (2).

4. The glass grinding apparatus for producing liquid crystal displays according to claim 1, characterized in that, The pressing mechanism (5) includes a mounting frame (51) fixedly connected to the frame (1). The mounting frame (51) is provided with a linear guide rail. The linear guide rail is vertically slidably connected to a slider (52). The slider (52) is provided with a buffer shaft extending to the slider (52). The lower end of the buffer shaft is provided with a wheel support (53). The bottom of the wheel support (53) is provided with several pressure rollers (54) arranged side by side.

5. The glass grinding apparatus for producing liquid crystal displays according to claim 1, characterized in that, The first conveyor belt (2) is provided with a first tensioning support (21) in the middle, and the second conveyor belt (3) is provided with a second tensioning support (31) in the middle.

6. The glass grinding apparatus for producing liquid crystal displays according to claim 5, characterized in that, Both the outer walls of the first conveyor belt (2) and the second conveyor belt (3) are provided with rubber layers.

7. A glass grinding apparatus for producing liquid crystal displays according to claim 2 or 3, characterized in that, The roller support (41) is provided with a limiting groove (411), and the frame (1) is provided with a limiting shaft (11) that slides with the limiting groove (411).

8. The glass grinding apparatus for producing liquid crystal displays according to claim 4, characterized in that, The outer wall of the pressure roller (54) has a soft rubber layer.

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