Single-side grinding process for screen display glass

Abstract

A grinding device adopted in the screen display glass single-edge grinding process comprises a grinding seat with a glass inlet and a grinding wheel, the grinding seat comprises a seat body, an air knife seat body and a water knife seat body which form a grinding cavity, the air knife seat body comprises an upper air knife and a lower air knife, and the water knife seat body comprises a water knife and a waste collecting module. The single-side grinding process for the screen display glass comprises the following steps: S1, feeding; and S2, grinding. On one hand, the grinding section is blocked and closed based on the upper and lower arc-shaped air knives, fluid is flushed out through the water jet knife, waste generated by grinding is flushed out of the grinding section along with rotation of the grinding wheel, the probability that fine dust escapes outwards and is secondarily attached to the surface of glass is effectively reduced, and the collection rate of the waste is improved; and on the other hand, waste rushed out from the second end is shunted and gently collected based on the waste collecting module, the splashing and accumulation phenomena generated when the waste impacts the inner wall of the grinding cavity are effectively reduced, the cleaning frequency is remarkably reduced, and the grinding efficiency is improved.

Description

[0001] This application is a divisional application filed on October 20, 2025, with application number 2025114924234 and titled "Apparatus for Grinding the Edge of Display Glass". Technical Field

[0002] This invention belongs to the field of glass processing technology, specifically relating to a single-sided grinding process for display glass. Background Technology

[0003] During the processing of display glass panels, the long sides, short sides, and four corners of the glass need to be ground to eliminate stress after cutting and remove sharp edges and foreign objects. Therefore, a glass edge grinding and chamfering machine is required. For example, Chinese Patent No. CN118595942B discloses a glass substrate grinding device, which includes a grinding shell and a water jet. The grinding shell has a through groove formed along a first horizontal direction, suitable for allowing one side of the glass substrate to pass continuously. A grinding wheel is provided inside the grinding shell. A negative pressure interface is provided on one side of the grinding shell. The negative pressure interface is used to connect external equipment and maintains a negative pressure state inside the grinding shell. The grinding shell is equipped with an upper air knife, with a first air outlet on its inward-facing side along a second horizontal direction, used to blow air onto one side of the upper surface of the glass substrate. The grinding shell is also equipped with a lower air knife, with a second air outlet on its inward-facing side along a second horizontal direction, used to blow air onto one side of the lower surface of the glass substrate. The lower and upper air knives are symmetrically arranged vertically at both ends of the through-slot. An upper water jet is used to spray water onto the upper surface of the grinding area of ​​the glass substrate. In other words, by employing a combination of through-slot, negative pressure interface, and water jet in the glass substrate grinding device, the problem of grinding water overflow is solved, ensuring that the grinding water remains within the grinding area, thus improving the grinding quality of the glass substrate and the quality of subsequent processing.

[0004] However, in the above implementation process, the water jet used in the existing technology is linear, and the grinding section is only formed between the grinding wheel groove and the glass contact part during the grinding process. Therefore, the water generated by the water jet can only rush towards the surface of the grinding wheel and cannot enter the grinding section. At the same time, under the interception of the water jet, some grinding waste is splashed into the grinding shell, and the remainder is thrown towards the negative pressure interface and extracted. Therefore, not only can the glass edge of the grinding section be ground synchronously in the flowing water, but the water flow generated by the water jet cannot carry the grinding waste to the negative pressure interface, which will also cause a large amount of waste residue to remain on the inner wall of the grinding shell. Once it falls on the grinding wheel, it will affect the grinding quality, and it also requires frequent disassembly and cleaning, which is time-consuming and laborious. In addition, the air knife used is also linear, and its main function is to form another isolation wall to prevent water and waste from splashing and causing damage to the glass surface. However, the isolation range is limited (water and waste splash out in the linear direction formed by the air knife), and the air knife and water jet do not cooperate in the grinding process, thus making it impossible to achieve high-quality grinding. Summary of the Invention

[0005] The purpose of this invention is to overcome the shortcomings of the prior art and provide an improved single-sided grinding process for display glass.

[0006] To achieve the above objectives, the present invention adopts the following solution: A single-sided grinding process for display glass, employing a grinding apparatus comprising a grinding seat with a glass inlet and a grinding wheel, wherein the grinding seat includes a seat body forming a grinding cavity communicating with the glass inlet, an air knife seat body, and a water knife seat body, and the air knife seat body includes upper and lower air knives, the grinding wheel being inserted vertically into the grinding cavity, and the water knife seat body including a water knife and a waste collection module; the single-sided grinding process for display glass includes the following steps: S1, Feeding The glass is inserted into the glass inlet, and the edge of the glass to be ground is made to abut against the groove of the grinding wheel to form a grinding section with a first end and a second end. The grinding part on the edge of the glass is changed by the transmission movement of the glass. At the same time, the upper and lower air knives are arc-shaped with the center of the grinding wheel and blow towards the grinding wheel along the front and back of the glass respectively to block and close the grinding section in the vertical direction of the glass and the transmission direction. S2, Grinding As the grinding wheel rotates to grind the grinding section, the fluid ejected from the water jet flows from the first end to the second end of the grinding section. With the grinding section closed, the waste generated during grinding is flushed towards the second end through the coordinated movement of the fluid, glass, and grinding wheel. At the same time, the waste collection module gradually diverts and gently collects the fine dust particles and large glass fragments from the waste ejected from the second end from top to bottom.

[0007] Preferably, in step S2, the waste undergoes centrifugal motion after being ejected from the second end. This reduces splashing caused by impact, achieves stable waste collection, and avoids residue.

[0008] According to a specific embodiment and preferred aspect of the present invention, the waste collection module includes a main collection branch and an auxiliary collection branch. The main collection branch includes a return chamber connected to the second end and a main collection pipe. The return chamber forms a main collection hole connected to the main collection pipe from the side opposite to the second end and an auxiliary collection hole connected to the auxiliary collection branch from the bottom. In step S2, the waste generated by grinding enters the return chamber from the second end, and fine dust particles enter the main collection pipe through the main collection hole, while large glass fragments enter the auxiliary collection branch downward through the auxiliary collection hole.

[0009] Preferably, the height of the main collection hole is lower than that of the grinding section; the reflux chamber is located close to the grinding wheel and has a reflux port that matches the outer contour of the portion of the grinding wheel near the second end; the reflux chamber contains a first reflux channel extending from the reflux port along the direction of the fluid flowing out from the second end, and a second reflux channel extending from the end of the first reflux channel away from the grinding wheel around the center of the grinding wheel, wherein the junction of the first reflux channel and the second reflux channel forms a rounded corner, and the main collection hole is located close to the rounded corner; there are two auxiliary collection holes, which are correspondingly distributed at both ends of the second reflux channel. Here, taking into account the influence of waste gravity, a high-low drop layout is adopted to increase the probability of waste being discharged through the autonomous collection pipe.

[0010] Preferably, the auxiliary collection branch includes a slow-flow chamber and multiple auxiliary collection pipes connected to the slow-flow chamber, wherein the multiple auxiliary collection pipes and the main collection pipe respectively create negative pressure in the slow-flow chamber and the return chamber; the bottom of the slow-flow chamber extends vertically and vertically, wherein the connection point of the multiple auxiliary collection pipes on the slow-flow chamber is close to the lower edge of the bottom of the chamber, and the grinding area formed between the upper and lower air knives and the grinding wheel is located above the upper edge of the bottom of the chamber; the bottom of the slow-flow chamber also forms grooves that connect one by one with the inlets of the multiple auxiliary collection pipes.

[0011] According to another specific embodiment and preferred aspect of the present invention, a clearance notch is formed on the water jet holder, through which the grinding wheel passes to abut against the edge of the glass to be ground; the air outlets of the upper and lower air knives include a first arc-shaped segment corresponding to the bottom surface of the upper air knife and the top surface of the lower air knife, and two second arc-shaped segments corresponding to the inner surfaces of the upper and lower air knives and located on opposite sides of the clearance notch in the glass transport direction, wherein the two second arc-shaped segments are connected to the two ends of the first arc-shaped segment. In step S1, the airflow blown by the upper and lower first and second arc-shaped segments cooperates to block the grinding section; the water jet outlet is located within the closed area formed by the upper and lower air knives, and the contact position of the fluid ejected from the water jet on the grinding wheel is located on the side of the first end away from the second end. Here, while ensuring that the glass movement is not affected, the airflow formed by the upper and lower second arc-shaped segments forms a closure in the glass movement direction (or grinding direction); keeping the grinding wheel immersed in water for grinding improves the cooling effect on the grinding wheel.

[0012] Preferably, the base body, water jet base body, and air jet base body are sequentially spliced ​​together, wherein a glass inlet extending from the inside out and running through the glass conveying direction is formed between the upper and lower air jets; and / or, a drain channel extending vertically and connecting the clearance gap with the auxiliary collection branch is also formed between the lower air jet and the water jet base body, wherein the top inlet of the drain channel is an arc-shaped segment extending around the center of the grinding wheel.

[0013] Preferably, the upper and lower air knives each form an air inlet cavity, a guide channel, and an air outlet that are connected sequentially from the inside to the outside, wherein the upper and lower guide channels are both set to gradually narrow towards the air outlet.

[0014] Preferably, when the glass is inserted for grinding, in the orthographic projection on the horizontal plane, the two ends of the air outlets of the upper and lower air knives intersect with the side of the glass to be ground; and / or, the air outlets of the upper and lower air knives are symmetrically arranged vertically; and / or, in the orthographic projection on the horizontal plane, the center lines of the air outlets of the upper and lower air knives and the grinding wheel coincide; and / or, in the orthographic projection on the horizontal plane, the space between the air outlets of the upper and lower air knives and the grinding wheel gradually narrows from both ends to the middle.

[0015] Furthermore, the center of the water jet's outlet is flush with the center of the grinding section; and / or, a guide portion extending from the outlet side towards the grinding section is also formed on the water jet, wherein a guide zone is formed between the guide portion and the grinding wheel. In step S2, the fluid ejected from the water jet flows along the guide zone towards the second end. Here, the fluid formed by the water jet can conform to the groove of the grinding wheel to flush the grinding waste generated towards the waste collection module when passing through the grinding section.

[0016] Due to the application of the above-mentioned technical solution, the present invention has the following advantages compared with the prior art: The existing water jet technology uses a linear design, and during the grinding process, a grinding section is only formed between the grinding wheel groove and the glass contact area. Therefore, the water jet can only reach the surface of the grinding wheel and cannot enter the grinding section. Simultaneously, the water jet intercepts some grinding waste, splashing it into the grinding housing, while the remainder is thrown towards the negative pressure port for extraction. Thus, not only is it impossible to achieve synchronous grinding of the glass edge in the flowing water during the grinding section, but the water flow cannot carry the grinding waste towards the negative pressure port, resulting in a large amount of waste residue remaining on the inner wall of the grinding housing. If this residue settles on the grinding wheel, it will affect the grinding quality, and frequent disassembly and cleaning are required, which is time-consuming and labor-intensive. The air knife used is also linear, its main function being to form another isolation wall to prevent water and waste from splashing and damaging the glass surface. However, the isolation range is limited (water and waste splash out in the linear direction formed by the air knife), and the air knife and water jet do not cooperate during the grinding process, thus preventing high-quality grinding. This application presents a comprehensive structural design for the single-sided grinding process of display glass, cleverly addressing the shortcomings and defects of existing technologies. Using this single-sided grinding process, firstly, the glass is inserted into the glass inlet, ensuring the edge to be ground contacts the groove of the grinding wheel to form a grinding section with a first and second end. Simultaneously, upper and lower air blades, arc-shaped around the center of the grinding wheel, blow air along the front and back of the glass towards the grinding wheel, blocking and closing the grinding section in both the vertical and transport directions. Then, as the grinding wheel rotates, it grinds the grinding section. The transport motion of the glass changes the area to be ground on the edge. Fluid ejected from the water jet flows from the first end to the second end of the grinding section. With the grinding section closed, the coordinated movement of the fluid, glass, and grinding wheel flushes the grinding waste towards the second end. Simultaneously, a waste collection module gradually diverts and gently collects fine dust particles and large glass fragments from the waste ejected from the second end. Therefore, compared with the prior art, the present invention, on the one hand, uses upper and lower arc-shaped air knives to block and close the grinding section, and uses water jets to flush out fluid and, with the rotation of the grinding wheel, flushes out the waste generated during grinding, effectively reducing the probability of fine dust escaping and re-adhering to the glass surface, and improving the waste collection rate; on the other hand, the waste collection module diverts and smoothly collects the waste flushed out from the second end, effectively reducing the splashing and accumulation of waste impacting the inner wall of the grinding chamber, significantly reducing the cleaning frequency, and improving grinding efficiency. Attached Figure Description

[0017] Figure 1 This is a three-dimensional structural diagram of the single-sided grinding process for the display glass of the present invention; Figure 2 for Figure 1 Front view diagram; Figure 3 for Figure 2Schematic diagram of the sectional view along the central AA direction; Figure 4 for Figure 1 A top-down view; Figure 5 for Figure 4 Schematic diagram of the BB-direction section; Figure 6 for Figure 5 Enlarged schematic diagram of the structure at point C; Figure 7 for Figure 1 Enlarged schematic diagram of a portion of the grinding base; Figure 8 for Figure 1 Enlarged schematic diagram of a portion of the grinding base (from another perspective); Figure 9 for Figure 7 Enlarged schematic diagram of a portion of the structure of the stroke knife holder; Wherein: 1. Grinding base; 10. Base body; q. Grinding cavity; k0. Glass inlet; 11. Air knife base; f0. Upper air knife; f1. Lower air knife; a1. Air inlet cavity; a2. Guide channel; a3. Air outlet; a31. First arc section; a32. Second arc section; d. Grinding section; 12. Water jet base; s0. Water jet; b. Guide section; b0. Guide area; s1. Waste collection module; s1 0. Main collection branch; c0. Return chamber; c01. First return channel; c02. Second return channel; k2. Main collection hole; k3. Auxiliary collection hole; k4. Return port; k5. Notch; g0. Main collection pipe; s11. Auxiliary collection branch; c1. Flow buffer; c10. Groove; g1. Auxiliary collection pipe; k1. Clearance notch; t. Drainage channel; 2. Grinding wheel; B. Glass; Q. Driver. Detailed Implementation

[0018] To make the above-mentioned objectives, features, and advantages of this application more apparent and understandable, the specific embodiments of this application are described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of this application. However, this application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this application. Therefore, this application is not limited to the specific embodiments disclosed below.

[0019] In the description of this application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, 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.

[0020] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0021] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "joining," 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 or an electrical 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, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0022] In this application, unless otherwise expressly specified and limited, "above" or "below" a second feature can mean that the first and second features are in direct contact, or that they are in indirect contact through an intermediate medium. Furthermore, "above," "over," and "on top" of a second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" a second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature. It should be noted that when an element is referred to as "fixed to" or "set on" another element, it can be directly on the other element or there may be an intermediate element present. When an element is considered to be "connected" to another element, it can be directly connected to the other element or there may be an intermediate element present. The terms "vertical," "horizontal," "above," "below," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible embodiments.

[0023] like Figures 1 to 9 As shown, the single-sided grinding process of the display glass in this embodiment uses a grinding device including a grinding base 1 and a grinding wheel 2.

[0024] Specifically, a glass inlet k0 is formed on the grinding seat 1, and the grinding seat 1 includes a seat body 10, an air knife seat body 11 and a water knife seat body 12 constituting the grinding chamber q. The seat body 10, the water knife seat body 12 and the air knife seat body 11 are sequentially spliced ​​together, and the grinding wheel 2 is inserted into the grinding chamber q from top to bottom. The driver Q for driving the grinding wheel 2 is connected above the grinding wheel 2.

[0025] For ease of implementation, the grinding wheel 2 in this embodiment has multiple grinding wheel grooves of various specifications distributed at intervals along its own axis, and according to process requirements, the grinding wheel 2 can be adjusted up and down to align the corresponding grinding wheel groove with the glass inlet k0.

[0026] In this example, the air knife holder 11 includes an upper air knife f0 and a lower air knife f1 that blow towards the grinding wheel 2 and are distributed in an arc shape around the center of the grinding wheel 2. The upper air knife f0, the lower air knife f1 and the grinding wheel 2 form a grinding area. The glass inlet k0 is connected to the grinding area. When the glass B is inserted for grinding, the edge of the glass B to be ground abuts against the groove of the grinding wheel 2 and forms a grinding section. The upper air knife f0 and the lower air knife f1 blow towards the grinding wheel 2 along the front and back of the glass B to close the grinding section d. The grinding section d has a first end and a second end.

[0027] To further facilitate implementation, a glass inlet k0 is formed between the upper air knife f0 and the lower air knife f1, extending from the inside out and penetrating in the glass B transport direction. An avoidance notch k1 is formed on the water jet holder 12. The grinding wheel 2 passes through the avoidance notch k1 to abut against the edge of the glass to be ground, which is inserted into the glass inlet. In other words, in this embodiment, the glass B is transported along the extension direction of its own edge to be ground. When the glass B is inserted into the glass inlet k0 and abuts against the groove of the grinding wheel 2 from its edge to be ground, grinding is performed based on the transport motion of the glass B. Simultaneously, when the glass B is inserted for grinding, in the orthographic projection on the horizontal plane, the two ends of the air outlets a3 of the upper air knife f0 and the lower air knife f1 intersect with the side of the glass B to be ground. Here, not only can the area of ​​the grinding section be reduced, enhancing the aggregation and collection capacity of waste, but the glass edge can also form a part to be ground and a part already ground outside the closed grinding section during grinding. Before and after grinding, the airflow blown out by the upper and lower air outlets of the edge to be ground can be gathered to quickly isolate the waste to prevent it from escaping, reducing interference with the part to be ground and the part already ground.

[0028] In some specific embodiments, the air outlets a3 of the upper air knife f0 and the lower air knife f1 are symmetrically arranged vertically. The upper air knife f0 and the lower air knife f1 each form an air inlet cavity a1, a guide channel a2, and an air outlet a3 that are connected sequentially from the inside to the outside. The upper and lower guide channels a2 extend vertically and gradually narrow towards the air outlet. In the orthographic projection on the horizontal plane, the center lines of the air outlets a3 of the upper air knife f0 and the lower air knife f1 and the grinding wheel 2 coincide. In the orthographic projection on the horizontal plane, the space (i.e., the grinding area) between the air outlets a3 of the upper air knife f0 and the lower air knife f1 and the grinding wheel 2 gradually narrows from both ends to the middle.

[0029] The air outlets a3 of the upper air knife f0 and the lower air knife f1 include a first arc-shaped segment a31 corresponding to the bottom surface of the upper air knife f0 and the top surface of the lower air knife f1, and two second arc-shaped segments a32 corresponding to the inner surfaces of the upper air knife f0 and the lower air knife f1 (i.e., the vertical splicing surface of the air knife base 11 and the water knife base 12) located on opposite sides of the clearance notch k1 in the grinding direction (i.e., the glass transport direction). The two second arc-shaped segments a32 are connected to the two ends of the first arc-shaped segment a31, and the airflow blown by the upper and lower second arc-shaped segments a32 intersects and closes the clearance notch k1. Here, while ensuring that the glass movement is not affected, the airflow formed by the upper and lower second arc-shaped segments forms a closure in the glass movement direction (or grinding direction), enhancing the sealing of the grinding section and reducing the phenomenon of waste being thrown out.

[0030] In this example, the water jet holder 12 includes a water jet s0 connected to the first end and a waste collection module s1 connected to the second end. The fluid flushed out from the water jet s0 flows from the first end to the second end of the grinding section d as the grinding wheel 2 rotates. The waste collection module s1 includes a main collection branch s10 aligned with the second end and an auxiliary collection branch s11 located below the main collection branch s10 and forming multiple slow-flow channels.

[0031] In some specific embodiments, a water flow channel is formed within the water jet s0. The outlet of the water flow channel is located within the closed area formed by the upper and lower air knives, and the center of the outlet of the water flow channel is flush with the center of the grinding section d. The diameter of the fluid ejected from the water jet s0 is greater than or equal to the thickness of the glass B. During grinding, the contact position of the fluid ejected from the water jet s0 on the grinding wheel 2 is located on the side of the first end away from the second end. The waste generated during grinding is collected towards the second end based on the coordinated motion of the fluid, the glass, and the grinding wheel. Here, the grinding wheel is kept immersed in water during grinding, which improves the cooling effect on the grinding wheel. At the same time, based on the coordinated motion of the fluid, the grinding wheel, and the glass, the efficiency of flushing the waste generated during grinding towards the waste collection module is improved.

[0032] Simultaneously, a guide section b is formed on the water jet s0, extending from the outlet side towards the grinding section d. A guide zone b0 is formed between the guide section b and the grinding wheel 2. The fluid ejected from the water jet s0 flows along the guide zone b0 towards the second end. The guide zone b0 gradually narrows along the fluid flow direction. Here, the fluid converges after being ejected from the water jet outlet, enhancing the scouring effect on the grinding section. Simultaneously, it achieves pre-cooling and cooling of the grinding wheel before and during grinding, ensuring the stability of the grinding temperature and improving the grinding effect.

[0033] In this example, the main collection branch s10 includes a return chamber c0 connected to the second end and a main collection pipe g0. The return chamber c0 forms a main collection hole k2 connected to the main collection pipe g0 from the side opposite to the second end, and an auxiliary collection hole k3 connected to the auxiliary collection branch s11 from the bottom. The waste generated by grinding enters the return chamber c0 from the second end based on the coordinated movement of the fluid, the grinding wheel and the glass. Part of the waste enters the main collection pipe g0 through the main collection hole k2, and another part of the waste enters the auxiliary collection branch s11 downward through the auxiliary collection hole k3.

[0034] In some specific implementations, the height of the main collection hole k2 is lower than that of the grinding section d. Here, taking into account the influence of waste gravity, a high-low drop layout is adopted to increase the probability of waste being discharged autonomously through the collection pipe.

[0035] The reflux chamber c0 is positioned close to the grinding wheel 2 and has a reflux port k4 that matches the outer contour of the portion of the grinding wheel 2 near the second end. Inside the reflux chamber c0, there is a first reflux channel c01 extending from the reflux port k4 along the direction of the fluid flowing out from the second end, and a second reflux channel c02 extending from the end of the first reflux channel c01 away from the grinding wheel 2 and around the center of the grinding wheel 2. The junction of the first reflux channel c01 and the second reflux channel c02 forms a rounded corner, and the main collection hole k2 is positioned near the rounded corner. There are two auxiliary collection holes k3, correspondingly distributed at both ends of the second reflux channel c02. Here, based on the closed grinding section of the air knife, the waste is driven by the coordinated movement of the fluid, glass, and grinding wheel to enter the reflux chamber after being ejected from the second end, and flows along the inner wall of the reflux chamber. This reduces splashing caused by impacting the inner wall of the reflux chamber, achieving stable waste collection and preventing residue on the inner wall of the reflux chamber.

[0036] In addition, the return chamber c0 is also formed with a notch k5 that extends along the glass conveying direction and is connected to the clearance notch k1. The upper and lower edges of the notch k5 are located above and below the glass inlet, respectively. During grinding, as the glass is conveyed and passes through the grinding section, the upper and lower air knives blow the waste residue on the glass surface toward the inside of the notch k5, further reducing the probability of waste residue on the glass surface.

[0037] In this example, the auxiliary collection branch s11 includes a slow-flow chamber c1 and multiple auxiliary collection pipes g1 connected to the slow-flow chamber c1. The multiple auxiliary collection pipes g1 and the main collection pipe g0 respectively create negative pressure within the slow-flow chamber c1 and the return chamber c0. This ensures complete collection of fine dust and droplets generated during grinding.

[0038] In some specific embodiments, the base body 10 is positioned above the slow-flow chamber c1, and the bottom of the base body 10 forms a through hole that matches the grinding wheel 2, so that the liquid remaining on the grinding wheel 2 can be collected downwards; the bottom of the slow-flow chamber c1 extends vertically and vertically, with the connection points of multiple auxiliary collection pipes g1 on the slow-flow chamber close to the lower edge of the bottom of the slow-flow chamber c1, and the grinding area located above the upper edge of the bottom of the slow-flow chamber c1; the bottom of the slow-flow chamber c1 also forms grooves c10 that connect one-to-one with the inlets of the multiple auxiliary collection pipes g1. Here, the groove design allows waste to collect in the grooves during flow and be discharged, avoiding the problem of insufficient liquid content and flowability leading to the inability of solids to be discharged.

[0039] Furthermore, a drain channel t is formed between the lower air knife f1 and the water jet holder 12, extending vertically and connecting the clearance notch k1 with the slow-flow chamber c1. The top inlet of the drain channel t is an arc-shaped segment extending around the center of the grinding wheel 2. This facilitates the downward discharge of excess waste (including wastewater and waste materials) from below the glass, preventing residual accumulation from obstructing the movement or grinding of the glass.

[0040] In summary, after adopting this single-sided grinding process for display glass, the glass is inserted into the glass inlet, and the edge of the glass to be ground is made to abut against the grinding wheel groove. The upper and lower air knives blow along the front and back of the glass towards the grinding wheel, forming a closed grinding section, so that the part of the glass to be ground is in the grinding section (the part to be ground is changed by the transmission movement of the glass). As the grinding wheel rotates, it grinds the edge of the glass to be ground. The fluid flushed out by the water jet flows from the first end to the second end of the grinding section. That is, based on the closed grinding section, the waste generated by grinding is flushed to the waste collection module by the fluid. Based on the cooperation of the main and auxiliary collection branches, the fine dust particles and large glass fragments in the waste are separated and collected. The fine dust particles are mainly collected through the main collection branch, and the large glass fragments are collected downward through the auxiliary collection branch. Therefore, compared with the prior art, this invention has several advantages. First, it forms a closed grinding section between the upper and lower arc-shaped air knives and the grinding wheel. The water jet flushes out the fluid, and as the grinding wheel rotates, it flushes out the grinding waste generated during grinding, effectively reducing the probability of fine dust escaping and re-attaching to the glass surface, thus improving the waste collection rate. Second, with the cooperation of the main and auxiliary collection branches, the waste flushed from the second end is diverted and collected smoothly, effectively reducing the splashing and accumulation caused by waste impacting the inner wall of the grinding chamber, significantly reducing the cleaning frequency and improving grinding efficiency. Third, it not only reduces the area of ​​the grinding section, enhancing the waste aggregation and collection capacity, but also allows the glass edge to form a part to be ground and a ground part outside the closed grinding section during grinding. Before and after grinding, the airflow from the upper and lower air outlets protruding from the edge to be ground can converge to quickly isolate the waste and prevent it from escaping, reducing interference with the part to be ground and the ground part. Fourth, by setting up a drainage channel, excess waste (including wastewater and waste materials) below the glass is easily discharged downwards, avoiding residual accumulation that could affect the movement of the glass or grinding processes. Fifthly, by keeping the grinding wheel immersed in water during grinding, the cooling effect on the grinding wheel is improved. Simultaneously, based on the coordinated movement of the fluid, grinding wheel, and glass, the efficiency of flushing grinding waste to the waste collection module is enhanced. Sixthly, the fluid, after being ejected from the water jet outlet, converges to enhance the scouring effect on the grinding section. Simultaneously, pre-cooling and cooling of the grinding wheel before and during grinding are achieved to ensure the stability of the grinding temperature and improve the grinding effect. Seventhly, based on the closed grinding section of the air knife, through the fluid and glass... The grinding wheel's motion drives the waste to be ejected from the second end and centrifugally enter the return chamber, flowing along the inner wall of the return chamber. This reduces splashing caused by impacting the inner wall of the return chamber, achieving stable waste collection and preventing residue from remaining on the inner wall of the return chamber. Eighthly, negative pressure is formed in the main and auxiliary collection branches to ensure complete collection of fine dust and droplets generated during grinding. Ninthly, a groove design is adopted so that waste can gather in the groove during flow and be discharged, avoiding the problem of solids not being able to be discharged due to insufficient liquid content and flowability.

[0041] The above embodiments are only for illustrating the technical concept and features of the present invention, and are intended to enable those skilled in the art to understand the content of the present invention and implement it accordingly. They should not be construed as limiting the scope of protection of the present invention. All equivalent changes or modifications made in accordance with the spirit and essence of the present invention should be covered within the scope of protection of the present invention.

Claims

1. A single-sided grinding process for display glass, characterized in that, The grinding device used includes a grinding seat with a glass inlet and a grinding wheel. The grinding seat includes a seat body, an air knife seat body, and a water knife seat body, which form a grinding chamber communicating with the glass inlet. The air knife seat body includes upper and lower air knives. The grinding wheel is inserted into the grinding chamber vertically. The water knife seat body includes a water knife and a waste collection module. The single-sided grinding process of the display glass includes the following steps: S1, Feeding The glass is inserted into the glass inlet, and the edge of the glass to be ground is made to abut against the groove of the grinding wheel to form a grinding section with a first end and a second end. The grinding part on the edge of the glass is changed by the transmission movement of the glass. At the same time, the upper and lower air knives are arc-shaped with the center of the grinding wheel and blow towards the grinding wheel along the front and back of the glass respectively to block and close the grinding section in the vertical direction of the glass and the transmission direction. S2, Grinding As the grinding wheel rotates to grind the grinding section, the fluid ejected from the water jet flows from the first end to the second end of the grinding section. With the grinding section closed, the waste generated during grinding is flushed towards the second end through the coordinated movement of the fluid, glass, and grinding wheel. At the same time, the waste collection module gradually diverts and gently collects the fine dust particles and large glass fragments from the waste ejected from the second end from top to bottom.

2. The single-sided grinding process for display glass according to claim 1, characterized in that, In step S2, the waste is ejected from the second end and undergoes centrifugal motion.

3. The single-sided grinding process for display glass according to claim 1 or 2, characterized in that, The waste collection module includes a main collection branch and an auxiliary collection branch. The main collection branch includes a return chamber connected to the second end and a main collection pipe. The return chamber forms a main collection hole connected to the main collection pipe from the side opposite to the second end and an auxiliary collection hole connected to the auxiliary collection branch from the bottom. In step S2, the waste generated by grinding enters the return chamber from the second end, and fine dust particles enter the main collection pipe through the main collection hole, while large glass fragments enter the auxiliary collection branch downward through the auxiliary collection hole.

4. The single-sided grinding process for display glass according to claim 3, characterized in that, The height of the main collection hole is lower than that of the grinding section; the reflux chamber is located close to the grinding wheel and has a reflux port that matches the outer contour of the portion of the grinding wheel near the second end; the reflux chamber has a first reflux channel extending from the reflux port along the direction of the fluid flow from the second end, and a second reflux channel extending from the end of the first reflux channel away from the grinding wheel around the center of the grinding wheel, wherein the junction of the first reflux channel and the second reflux channel forms a rounded corner, and the main collection hole is located close to the rounded corner; there are two auxiliary collection holes, which are correspondingly distributed at both ends of the second reflux channel.

5. The single-sided grinding process for display glass according to claim 3, characterized in that, The auxiliary collection branch includes a slow-flow chamber and multiple auxiliary collection pipes connected to the slow-flow chamber. The multiple auxiliary collection pipes and the main collection pipe respectively create negative pressure in the slow-flow chamber and the return chamber. The bottom of the slow-flow chamber extends vertically at an incline. The connection point of the multiple auxiliary collection pipes on the slow-flow chamber is close to the lower edge of the bottom of the chamber. The grinding area formed between the upper and lower air knives and the grinding wheel is located above the upper edge of the bottom of the chamber. The bottom of the slow-flow chamber also has grooves that connect one-to-one with the inlets of the multiple auxiliary collection pipes.

6. The single-sided grinding process for display glass according to claim 1, characterized in that, The water jet holder has an clearance notch, through which the grinding wheel passes to contact the edge of the glass to be ground. The air outlets of the upper and lower air knives include a first arc-shaped segment corresponding to the bottom surface of the upper air knife and the top surface of the lower air knife, and two second arc-shaped segments corresponding to the inner surfaces of the upper and lower air knives and located on opposite sides of the clearance notch in the glass transport direction. The two second arc-shaped segments are connected to the two ends of the first arc-shaped segment. In step S1, the grinding section is blocked by the airflow blown by the upper and lower first and second arc-shaped segments. The water jet outlet is located within the closed area formed by the upper and lower air knives, and the contact position of the fluid flushed out from the water jet on the grinding wheel is located on the side of the first end away from the second end.

7. The single-sided grinding process for display glass according to claim 6, characterized in that, The base body, water jet base body, and air jet base body are sequentially spliced ​​together, wherein a glass inlet extending from the inside out and running through the glass conveying direction is formed between the upper and lower air jets; and / or, a drain channel extending vertically and connecting the clearance gap with the auxiliary collection branch is also formed between the lower air jet and the water jet base body, wherein the top inlet of the drain channel is an arc-shaped segment extending around the center of the grinding wheel.

8. The single-sided grinding process for display glass according to claim 1, characterized in that, The upper and lower air blades each form an air inlet cavity, a guide channel, and an air outlet that are connected sequentially from the inside out, wherein the upper and lower guide channels are both set to gradually narrow towards the air outlet.

9. The single-sided grinding process for display glass according to claim 1, characterized in that, When the glass is inserted for grinding, in the orthographic projection on the horizontal plane, the two ends of the air outlets of the upper and lower air knives intersect with the side of the glass to be ground; and / or, the air outlets of the upper and lower air knives are symmetrically arranged vertically; and / or, in the orthographic projection on the horizontal plane, the center lines of the air outlets of the upper and lower air knives and the grinding wheel coincide; and / or, in the orthographic projection on the horizontal plane, the space between the air outlets of the upper and lower air knives and the grinding wheel gradually narrows from both ends to the middle.

10. The single-sided grinding process for display glass according to claim 1, characterized in that, The center of the water jet outlet is flush with the center of the grinding section; and / or, a guide portion extending from the outlet side toward the grinding section is also formed on the water jet, wherein the guide portion and the grinding wheel form a guide zone, and in step S2, the fluid flushed out of the water jet flows along the guide zone toward the second end.

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