Edge grinding apparatus for screen display glass

Abstract

The application discloses a screen display glass edge grinding device, which comprises a grinding seat and a grinding wheel, the grinding seat is provided with a glass inlet, the grinding seat comprises a seat body constituting a grinding cavity, an air knife seat body and a water knife seat body, the grinding wheel is inserted into the grinding cavity in an up-down mode, the air knife seat body comprises upper and lower air knives which blow towards the grinding wheel and are distributed in an arc shape with the center of the grinding wheel, and the water knife seat body comprises a water knife and a waste collection module. According to the application, a closed grinding section is formed between the upper and lower arc-shaped air knives and the grinding wheel, the water knife sprays fluid, the waste generated in the grinding process is flushed out of the grinding section along with the rotation of the grinding wheel, the probability of fine dust escaping and adhering to the glass surface again is effectively reduced, the collection rate of the waste is improved, the waste flushed out of the second end is branched and collected gently under the cooperation of the main and auxiliary collection branches, the waste splashing and piling up on the inner wall of the grinding cavity is effectively reduced, the cleaning frequency is significantly reduced, and the grinding efficiency is improved.

Description

TECHNICAL FIELD

[0001] The present application belongs to the technical field of glass processing, and particularly relates to a screen display glass edge grinding device. BACKGROUND

[0002] In the processing of screen display glass plates, the long edges, short edges and four corners of the glass need to be ground to eliminate the stress of the glass after cutting and remove the sharp corners and foreign matter of the cutting edges. Therefore, a glass edge grinding and chamfering machine needs to be used. For example, a glass substrate grinding device disclosed in Chinese Patent No. CN118595942B includes a grinding shell and an upper water knife. A through slot suitable for continuously passing a single edge of the glass substrate is formed in the grinding shell along a first horizontal direction. A grinding wheel is arranged in the grinding shell. A negative pressure interface is arranged on one side of the grinding shell, which is used to connect an external device and make the interior of the grinding shell in a negative pressure state. An upper air knife is arranged on the grinding shell, and a first air outlet is arranged on the inward side of the upper air knife along a second horizontal direction, which is used to blow air to the upper surface of the single edge of the glass substrate. A lower air knife is arranged on the grinding shell, and a second air outlet is arranged on the inward side of the lower air knife along the second horizontal direction, which is used to blow air to the lower surface of the single edge of the glass substrate. The lower air knife and the upper air knife are vertically symmetrically arranged at both ends of the through slot. The upper water knife is used to spray water to the upper surface of the grinding area of the glass substrate. That is, by adopting the combination design of the through slot, the negative pressure interface and the water outlet in the glass substrate grinding device, the problem of overflow of grinding water is solved, the grinding water is ensured in the grinding area, and the grinding quality of the glass substrate and the quality of subsequent process treatment are improved.

[0003] However, in the above implementation process, the water knife adopted in the prior art is linear, and only a grinding section is formed between the grinding wheel groove and the contact part of the glass in the grinding process. Therefore, the water formed by the water knife can only hit the surface of the grinding wheel and cannot enter the grinding section. At the same time, part of the grinding waste is splashed into the grinding shell under the interception of the water knife, and the remaining part is thrown to the negative pressure interface for extraction. Therefore, not only can the glass edge of the grinding section not be simultaneously ground in the flowing water, but the water flow formed by the water knife cannot drive the grinding waste to be thrown to the negative pressure interface, which also causes a large amount of waste residues to exist on the inner wall of the grinding shell. Once the waste residues fall on the grinding wheel, the grinding quality will be affected, and the grinding shell needs to be disassembled and cleaned at a high frequency, which is time-consuming and laborious. In addition, the air knife adopted is also linear, and its main function is to form a partition wall to avoid water and waste residues from splashing and causing damage to the surface of the glass. However, the isolation range has limitations (water and waste residues may splash and escape in the linear direction formed by the air knife), and the air knife and the water knife do not cooperate in the grinding process, which cannot implement high-quality grinding. SUMMARY

[0004] The purpose of the present application is to overcome the shortcomings of the prior art and provide an improved screen display glass edge grinding device.

[0005] To achieve the above object, the present application adopts the following scheme:

[0006] The edge grinding device for screen display glass comprises a grinding seat and a grinding wheel, the grinding seat is provided with a glass inlet, the grinding seat comprises a seat body constituting a grinding cavity, an air knife seat body and a water knife seat body, the grinding wheel is inserted into the grinding cavity in an up-down manner, the air knife seat body comprises upper and lower air knives which blow towards the grinding wheel and are distributed in an arc shape with the center of the grinding wheel as the center, a grinding area is formed between the upper and lower air knives and the grinding wheel, the glass inlet is communicated with the grinding area, when the glass is inserted for grinding, the edge to be ground of the glass is in contact with the wheel groove of the grinding wheel and forms a grinding section, the upper and lower air knives blow towards the grinding wheel along the front and back surfaces of the glass to close the grinding section, the grinding section has a first end and a second end, the water knife seat body comprises a water knife communicated with the first end and a waste collection module communicated with the second end, the fluid discharged from the water knife flows from the first end to the second end of the grinding section along with the rotation of the grinding wheel, the waste collection module comprises a main collection branch opposite to the second end and an auxiliary collection branch located below the main collection branch and forming multiple slow-flow channels.

[0007] According to a specific embodiment and a preferred aspect of the present application, in the horizontal plane, the two ends of the air outlet of the upper air knife and the air outlet of the lower air knife are respectively arranged to intersect with the side edge to be ground of the glass in the orthogonal projection. In this way, the area of the grinding section can be reduced, the waste collection and collection capabilities can be enhanced, and the edge to be ground of the glass can form a to-be-ground part and a ground part outside the closed grinding section during grinding. The air flow blown out of the upper and lower air outlets of the to-be-ground edge can be gathered before and after grinding to quickly isolate the waste to avoid escaping and reduce the interference with the to-be-ground part and the ground part.

[0008] Preferably, the air outlets of the upper air knife and the lower air knife are arranged symmetrically in an up-down manner; and / or, in 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 horizontal plane, the space between the air outlets of the upper and lower air knives and the grinding wheel is gradually narrowed from both ends to the middle.

[0009] According to another specific embodiment and a preferred aspect of the present application, the seat body, the water knife seat body and the air knife seat body are sequentially spliced, a glass inlet extending from inside to outside and penetrating in the glass transmission direction is formed between the upper and lower air knives, an avoiding notch is formed on the water knife seat body, and the grinding wheel passes through the avoiding notch to be in contact with the edge to be ground of the glass. In this way, the glass is inserted into the glass inlet from outside to inside while crossing the glass inlet along the transmission direction of the glass to adjust the grinding position.

[0010] Preferably, the upper and lower air knives each form an air inlet chamber, a flow guide channel and an air outlet chamber in sequence from inside to outside, wherein the upper and lower flow guide channels are gradually narrowed towards the air outlet chamber. In this way, the strength of the air curtain formed by the upper and lower air knives is enhanced.

[0011] Specifically, the air outlet chamber of the upper and lower air knives includes a first arc-shaped section formed correspondingly on the bottom surface of the upper air knife and the top surface of the lower air knife, and two second arc-shaped sections formed correspondingly on the inner side surfaces of the upper and lower air knives and located on the opposite sides of the avoidance gap in the glass conveying direction, wherein the two second arc-shaped sections are in communication with the two ends of the first arc-shaped section, and the airflow based on the upper and lower first and second arc-shaped sections cooperatively blocks the grinding section. In this way, the airflow formed based on the upper and lower second arc-shaped sections is closed in the glass movement direction (or the grinding direction) while ensuring that the glass movement is not affected.

[0012] Preferably, a flow discharge channel extending upwards and downwards and connecting the avoidance gap and the auxiliary collection branch is further formed between the lower air knife and the water jet seat body, wherein the top inlet of the flow discharge channel is in the form of an arc-shaped section extending around the center of the grinding wheel. In this way, the excess waste (including waste water and waste material) under the glass is conveniently discharged downwards, and the accumulation of the waste is avoided to block the movement or grinding of the glass.

[0013] According to still another specific implementation and preferred aspect of the present application, the water outlet of the water jet is located in the closed region formed by the upper and lower air knives, and the contact position of the fluid discharged from the water jet on the grinding wheel is located on the side away from the second end head of the first end head, and the waste generated by the grinding is collected towards the second end head based on the movement cooperation of the fluid, the glass and the grinding wheel. In this way, the grinding is implemented while the grinding wheel is kept in water immersion, the cooling effect of the grinding wheel is improved, and the efficiency of the waste generated by the grinding being flushed towards the waste collection module is improved based on the movement cooperation of the fluid, the grinding wheel and the glass.

[0014] Preferably, the center of the water outlet of the water jet is flush with the center of the grinding section. In this way, the fluid formed by the water jet can flow along the wheel groove of the grinding wheel to flush the waste generated by the grinding towards the waste collection module when passing through the grinding section.

[0015] Preferably, a flow guide part extending from the side of the water outlet towards the grinding section is further formed on the water jet, wherein a flow guide area is formed between the flow guide part and the grinding wheel, and the fluid discharged from the water jet flows along the flow guide area towards the second end head.

[0016] Specifically, the flow guide area is gradually narrowed along the flow direction of the fluid. In this way, the fluid discharged from the water outlet of the water jet forms a convergence to enhance the flushing effect on the grinding section, and the pre-cooling and cooling of the grinding wheel before and during the grinding are implemented to ensure the stability of the grinding temperature and improve the grinding effect.

[0017] According to still another specific implementation and preferred aspect of the present application, the main collection branch comprises a backflow bin in communication with the second end, a main collection conduit, wherein the backflow bin forms a main collection hole in communication with the main collection conduit from a side opposite to the second end, and forms an auxiliary collection hole in communication with the auxiliary collection branch from a bottom, the grinding generated waste enters the backflow bin from the second end, and a part of the waste enters the main collection conduit through the main collection hole, and another part of the waste enters the auxiliary collection branch downwardly through the auxiliary collection hole.

[0018] Preferably, the height of the main collection hole is lower than the grinding section. Here, in combination with the gravity effect of the waste, a high-low difference layout is adopted to increase the probability of the waste being discharged from the main collection conduit.

[0019] Preferably, the backflow bin is arranged close to the grinding wheel and is formed with a backflow opening matching the outer contour of the part of the grinding wheel close to the second end; the backflow bin is formed with a first backflow channel extending along the flow direction of the fluid ejected from the second end, and a second backflow channel extending around the center of the grinding wheel from an end of the first backflow channel away from the grinding wheel, wherein the junction of the first backflow channel and the second backflow channel is formed with a rounded corner, and the main collection hole is arranged close to the rounded corner; the auxiliary collection hole has two and is correspondingly distributed at both ends of the second backflow channel. Here, based on the closed grinding section of the air knife, the waste ejected from the second end is driven to make centrifugal motion into the backflow bin and flow along the inner wall of the backflow bin under the cooperation of the fluid, glass and grinding wheel motion, reducing the splashing phenomenon caused by the impact on the inner wall of the backflow bin, realizing stable collection of the waste, and avoiding residual on the inner wall of the backflow bin.

[0020] Preferably, the auxiliary collection branch comprises a buffer bin and a plurality of auxiliary collection conduits in communication with the buffer bin, wherein the plurality of auxiliary collection conduits and the main collection conduit respectively form negative pressures in the buffer bin and the backflow bin. Here, the complete collection of the fine dust and liquid droplets generated by grinding is ensured.

[0021] In addition, the bottom of the buffer bin extends upwardly and downwardly, wherein the communication of the plurality of auxiliary collection conduits on the buffer bin is close to the lower edge of the bottom, and the grinding area is above the upper edge of the bottom; and / or, the bottom of the buffer bin is further formed with a groove in one-to-one correspondence with the entrances of the plurality of auxiliary collection conduits. Here, the groove design is adopted so that the waste can be gathered in the groove for discharge in the flow, avoiding the problem that the solid matter cannot be discharged due to insufficient flowability of the liquid with low liquid content.

[0022] Thanks to the use of the above technical solutions, the present application has the following advantages compared with the prior art:

[0023] 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 provides an overall design for the structure of the screen display glass edge grinding device, cleverly addressing the shortcomings and defects of existing technologies. With this device, glass is inserted into the glass inlet, ensuring the edge to be ground contacts the grinding wheel groove. Upper and lower arc-shaped air blades blow air along the front and back of the glass towards the grinding wheel, forming a closed grinding section. This places the area to be ground within the grinding section (the grinding area is changed by the glass's transport motion). As the grinding wheel rotates, it grinds the edge of the glass. Fluid ejected by the water jet flows from the first end to the second end of the grinding section. This closed grinding section, through the fluid, flushes the grinding waste towards the waste collection module. Furthermore, the main and auxiliary collection branches work together to separate and collect fine dust particles and large glass fragments from the waste. Fine dust particles are primarily collected through the main collection branch, while large glass fragments are collected downwards through the auxiliary collection branch. Therefore, compared with the prior art, the present invention, on the one hand, is based on the closed grinding section formed between the upper and lower arc-shaped air knives and the grinding wheel. The fluid is flushed out by the water jet and the waste generated by grinding is flushed out of the grinding section as the grinding wheel rotates, which effectively reduces the probability of fine dust escaping and re-adhering to the glass surface, and improves the waste collection rate. On the other hand, based on the cooperation of the main and auxiliary collection branches, the waste flushed out from the second end is diverted and collected smoothly, which effectively reduces the splashing and accumulation of waste impacting the inner wall of the grinding chamber, significantly reduces the cleaning frequency, and improves the grinding efficiency. Attached Figure Description

[0024] Figure 1 This is a three-dimensional structural schematic diagram of the screen display glass edge grinding device of the present invention;

[0025] Figure 2 for Figure 1 Front view diagram;

[0026] Figure 3 for Figure 2A-A direction sectional view schematic diagram;

[0027] Figure 4 A-A direction sectional view schematic diagram; Figure 1 A-A direction sectional view schematic diagram;

[0028] Figure 5 A-A direction sectional view schematic diagram; Figure 4 B-B direction sectional view schematic diagram;

[0029] Figure 6 C direction sectional view schematic diagram; Figure 5 C direction sectional view schematic diagram;

[0030] Figure 7 C direction sectional view schematic diagram; Figure 1 C direction sectional view schematic diagram (another perspective view);

[0031] Figure 8 C direction sectional view schematic diagram (another perspective view); Figure 1 C direction sectional view schematic diagram (another perspective view);

[0032] Figure 9 C direction sectional view schematic diagram (another perspective view); Figure 7 C direction sectional view schematic diagram (another perspective view);

[0033] Wherein: 1, grinding seat; 10, seat body; q, grinding cavity; k0, glass inlet; 11, air knife seat body; f0, upper air knife; f1, lower air knife; a1, air inlet cavity; a2, flow guide channel; a3, air outlet; a31, first arc segment; a32, second arc segment; d, grinding segment; 12, water knife seat body; s0, water knife; b, flow guide part; b0, flow guide area; s1, waste collection module; s10, main collection branch; c0, backflow bin; c01, first backflow channel; c02, second backflow channel; k2, main collection hole; k3, auxiliary collection hole; k4, backflow port; k5, gap; g0, main collection pipeline; s11, auxiliary collection branch; c1, slow flow bin; c10, groove; g1, auxiliary collection pipeline; k1, avoidance gap; t, drainage channel; 2, grinding wheel; B, glass; Q, driver. DETAILED DESCRIPTION

[0034] In order to make the above objectives, features and advantages of the present application more obvious and easy to understand, the specific embodiments of the present application are described in detail below in conjunction with the drawings. In the following description, a large number of specific details are set forth in order to facilitate a full understanding of the present application. However, the present application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without departing from the spirit of the present application, so the present application is not limited to the specific embodiments disclosed below.

[0035] In the description of the application, it needs to be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like is based on the orientation or positional relationship shown in the drawings, and is only for the purpose of facilitating the description of the application and simplifying the description, and therefore cannot be understood as indicating or implying that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the application.

[0036] In addition, the terms "first", "second" are only for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the technical features indicated. Therefore, the features defined with "first", "second" can explicitly or implicitly include at least one of the features. In the description of the application, the meaning of "a plurality of" is at least two, such as two, three, etc., unless otherwise explicitly specified and limited.

[0037] In this application, unless otherwise explicitly specified and limited, the terms "mounting", "connecting", "connecting", "fixing" and the like should be understood in a broad sense, for example, it can be fixed connection, or detachable connection, or integral; it can be mechanical connection, or electrical connection; it can be directly connected, or indirectly connected through intermediate medium, it can be the internal communication of two elements or the interaction relationship between two elements, unless otherwise explicitly limited. For those skilled in the art, the specific meaning of the above terms in this application can be understood according to the specific circumstances.

[0038] In this application, unless otherwise explicitly specified and limited, the first feature is "on" or "under" the second feature, which can be direct contact between the first and second features, or indirect contact between the first and second features through intermediate medium. Moreover, the first feature "above", "above" and "above" the second feature can be directly above or obliquely above the first feature, or only indicate that the horizontal height of the first feature is higher than that of the second feature. The first feature "below", "below" and "below" the second feature can be directly below or obliquely below the first feature, or only indicate that the horizontal height of the first feature is less than that of the second feature. It should be noted that when an element is referred to as "fixed to" or "provided on" another element, it can be directly on another element or there can be a middle element. When an element is considered to be "connected" to another element, it can be directly connected to another element or there can be a middle element. The terms "vertical", "horizontal", "up", "down", "left", "right" and similar expressions used herein are only for the purpose of illustration and do not represent the only implementation.

[0039] As Figures 1 to 9 shown, the edge grinding device of the present embodiment comprises a grinding seat 1 and a grinding wheel 2.

[0040] Specifically, the grinding seat 1 is formed with a glass inlet k0, and comprises a seat body 10 constituting a grinding cavity q, an air knife seat body 11 and a water knife seat body 12, wherein the seat body 10, the water knife seat body 12 and the air knife seat body 11 are sequentially spliced, the grinding wheel 2 is inserted into the grinding cavity q in an up-down manner, and a driver Q for driving the grinding wheel 2 is connected above the grinding wheel 2.

[0041] For the convenience of implementation, the grinding wheel 2 of the present embodiment is provided with a plurality of grinding wheel grooves spaced along the axial direction of the grinding wheel 2, and the grinding wheel 2 is adjusted up and down to align the corresponding grinding wheel groove with the glass inlet k0 according to the process requirements.

[0042] In the present embodiment, the air knife seat body 11 comprises an upper air knife f0 and a lower air knife f1 blowing towards the grinding wheel 2 and arranged in an arc shape with the center of the grinding wheel 2 as the center, wherein the upper air knife f0, the lower air knife f1 and the grinding wheel 2 form a grinding area, the glass inlet k0 is communicated with the grinding area, and when the glass B is inserted for grinding, the edge to be ground of the glass B is in contact with the wheel groove of the grinding wheel 2 to form a grinding section, and the upper air knife f0 and the lower air knife f1 blow towards the grinding wheel 2 along the front and back surfaces of the glass B to close the grinding section d, wherein the grinding section d has a first end and a second end.

[0043] In order to further facilitate the implementation, the glass inlet k0 is formed between the upper air knife f0 and the lower air knife f1 and extends from inside to outside and is arranged through in the transmission direction of the glass B, the water knife seat body 12 is formed with an avoiding gap k1, and the grinding wheel 2 passes through the avoiding gap k1 to be in contact with the edge to be ground of the glass inserted into the glass inlet, that is, the glass B of the present embodiment is transmitted along the extension direction of the edge to be ground thereof, and when the glass B is inserted into the glass inlet k0 and the edge to be ground is in contact with the wheel groove of the grinding wheel 2, the grinding is implemented based on the transmission movement of the glass B. At the same time, when the glass B is inserted for grinding, in the orthographic projection on the horizontal plane, the two ends of the air outlet a3 of each of the upper air knife f0 and the lower air knife f1 are respectively arranged to intersect with the edge to be ground of the glass B. At this time, not only the area of the grinding section can be reduced, but also the gathering and collecting abilities of the waste can be enhanced, and at the same time, the edge to be ground of the glass can form a part to be ground and a part to be ground outside the closed grinding section during grinding, and the air flow blown out through the upper and lower air outlets of the edge to be ground before and after grinding can be gathered to quickly isolate the waste to avoid escaping, thereby reducing the interference with the part to be ground and the part to be ground.

[0044] In some embodiments, the air outlets a3 of the upper air knife f0 and the lower air knife f1 are symmetrically arranged up and down, wherein the upper air knife f0 and the lower air knife f1 each form an air inlet cavity a1, a flow guide channel a2 and an air outlet a3 which are sequentially communicated from inside to outside, and the up and down flow guide channels a2 are inclinedly extended up and down and gradually narrowed towards the air outlet; in 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 are coincident; in 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 is gradually narrowed from both ends to the middle.

[0045] 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 side surfaces of the upper air knife f0 and the lower air knife f1 (i.e. the vertical joint surfaces of the air knife seat body 11 and the water knife seat body 12) and located on the opposite sides of the avoidance gap k1 in the grinding direction (i.e. the conveying direction of the glass), wherein the two second arc-shaped segments a32 are correspondingly communicated with the two ends of the first arc-shaped segment a31, and the air flows blown by the up and down second arc-shaped segments a32 correspondingly intersect and close the avoidance gap k1. In this way, while ensuring that the glass movement is not affected, the air flows formed by the up and down second arc-shaped segments are closed in the glass movement direction (or the grinding direction), thereby enhancing the sealing of the grinding section and reducing the waste throwing phenomenon.

[0046] In this example, the water knife seat body 12 includes a water knife s0 communicated with the first end, and a waste collection module s1 communicated with the second end, wherein the fluid discharged from the water knife s0 flows from the first end to the second end of the grinding section d along with the rotation of the grinding wheel 2, and 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.

[0047] In some embodiments, a water flow channel is formed in the water knife s0, the water outlet of the water flow channel is located in the closed area formed by the upper and lower air knives, the center of the water outlet of the water flow channel is flush with the center of the grinding section d, and the diameter of the fluid discharged from the water knife s0 is greater than or equal to the thickness of the glass B. During grinding, the contact position of the fluid discharged from the water knife s0 on the grinding wheel 2 is located on the side away from the second end of the first end, and the waste formed by grinding is collected towards the second end based on the movement cooperation of the fluid, the glass and the grinding wheel. In this way, the grinding is carried out while the grinding wheel is kept in water immersion, thereby improving the cooling effect of the grinding wheel, and based on the movement cooperation of the fluid, the grinding wheel and the glass, the efficiency of flushing the waste generated by grinding to the waste collection module is improved.

[0048] Meanwhile, the water knife s0 is further provided with a guide part b extending from the water outlet side to the grinding section d, wherein the guide part b and the grinding wheel 2 form a guide area b0, and the fluid ejected from the water knife s0 flows along the guide area b0 to the second end. The guide area b0 gradually narrows along the fluid flow direction. Here, the fluid ejected from the water outlet of the water knife converges to enhance the flushing effect on the grinding section; meanwhile, the grinding wheel is pre-cooled and cooled before and during grinding to ensure the stability of the grinding temperature and improve the grinding effect.

[0049] In this example, the main collection branch s10 includes a backflow bin c0 in communication with the second end, and a main collection pipeline g0, wherein the backflow bin c0 is provided with a main collection hole k2 in communication with the main collection pipeline g0 from the side opposite to the second end, and an auxiliary collection hole k3 formed at the bottom to communicate with the auxiliary collection branch s11. The waste generated during grinding enters the backflow bin c0 from the second end based on the motion cooperation of the fluid, the grinding wheel and the glass, and part of the waste enters the main collection pipeline 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.

[0050] In some embodiments, the height of the main collection hole k2 is lower than the grinding section d. Here, the high-low difference layout is adopted in combination with the influence of gravity of the waste to increase the probability of waste discharge from the main collection pipeline.

[0051] The backflow bin c0 is arranged close to the grinding wheel 2 and is provided with a backflow opening k4 matching the outer contour of the part of the grinding wheel 2 close to the second end. The backflow bin c0 is formed with a first backflow channel c01 extending along the flow direction of the fluid ejected from the second end, and a second backflow channel c02 extending from one end of the first backflow channel c01 away from the grinding wheel 2 and around the center of the grinding wheel 2, wherein the junction of the first backflow channel c01 and the second backflow channel c02 forms a rounded corner, and the main collection hole k2 is arranged close to the rounded corner; the auxiliary collection hole k3 has two and is correspondingly distributed at the two ends of the second backflow channel c02. Here, based on the closed grinding section of the air knife, the waste ejected from the second end is driven to do centrifugal motion into the backflow bin and flow along the inner wall of the backflow bin under the motion cooperation of the fluid, the glass and the grinding wheel, to reduce the splashing phenomenon caused by the impact on the inner wall of the backflow bin, to realize stable collection of the waste and avoid residual on the inner wall of the backflow bin.

[0052] In addition, the backflow bin c0 is further provided with an opening k5 extending along the glass conveying direction and in communication with the avoidance notch k1, wherein the upper and lower edges of the opening k5 are correspondingly located above and below the glass inlet. During grinding, the waste remaining on the surface of the glass is blown to the inner side of the opening k5 by the upper and lower air knives as the glass passes through the grinding section, further reducing the probability of waste remaining on the surface of the glass.

[0053] In this example, the auxiliary collection branch s11 includes a buffer tank c1 and a plurality of auxiliary collection pipes g1 connected to the buffer tank c1, wherein the plurality of auxiliary collection pipes g1 and the main collection pipe g0 form negative pressure in the buffer tank c1 and the return tank c0, respectively. Here, complete collection of fine dust and liquid droplets generated by grinding is ensured.

[0054] In some embodiments, the seat body 10 is arranged above the buffer tank c1, and the bottom of the seat body 10 forms a through hole matched with the grinding wheel 2, so that the liquid remaining on the grinding wheel 2 can be collected downward; the tank bottom of the buffer tank c1 extends upward and downward, wherein the plurality of auxiliary collection pipes g1 are connected to the buffer tank c1 near the lower edge of the tank bottom of the buffer tank c1, and the grinding area is above the upper edge of the tank bottom of the buffer tank c1; the tank bottom of the buffer tank c1 is further formed with a groove c10 matched with the inlets of the plurality of auxiliary collection pipes g1. Here, the groove design is adopted, so that the waste can be collected in the groove during flow and discharged, avoiding the problem that solid waste cannot be discharged due to insufficient flowability of liquid with low liquid content.

[0055] In addition, the lower air knife f1 and the water knife seat body 12 further form a drainage channel t extending upward and downward and connecting the buffer tank c1 and the avoidance gap k1, wherein the top inlet of the drainage channel t is an arc segment extending around the center of the grinding wheel 2. Here, the excess waste (including waste water and waste material) below the glass is conveniently discharged downward, avoiding the problem of blockage of the movement or grinding of the glass due to residual accumulation.

[0056] In summary, after adopting this screen glass edge grinding device, the glass is inserted into the glass inlet, and the edge of the glass to be ground comes into contact with 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.

[0057] The above examples are only for illustrating the technical concept and characteristics of the present application, and the purpose is to enable those skilled in the art to understand the content of the present application and to implement it, and cannot limit the protection scope of the present application. Any equivalent changes or modifications made according to the spirit and essence of the present application shall be covered within the protection scope of the present application.

Claims

1. A device for edge grinding of a screen display glass comprising a grinding seat, a grinding wheel, and a glass inlet formed on the grinding seat, characterized in that, The grinding seat comprises a seat body constituting a grinding cavity, an air knife seat body and a water knife seat body, the grinding wheel is inserted into the grinding cavity, the air knife seat body comprises upper and lower air knives which blow towards the grinding wheel and are distributed in an arc shape with the center of the grinding wheel, a grinding area is formed between the upper and lower air knives and the grinding wheel, a glass inlet is communicated with the grinding area, when the glass is inserted for grinding, the edge to be ground of the glass is in contact with the wheel groove of the grinding wheel and forms a grinding section, and the upper and lower air knives blow towards the grinding wheel along the front and back surfaces of the glass to close the grinding section, wherein the grinding section has a first end and a second end; the water knife seat body comprises a water knife communicated with the first end and a waste collection module communicated with the second end, wherein the fluid discharged from the water knife flows from the first end to the second end of the grinding section along with the rotation of the grinding wheel, and the waste collection module comprises a main collection branch opposite to the second end and an auxiliary collection branch located below the main collection branch and forming multiple slow flow channels; An avoiding gap is formed on the water knife seat body, and the grinding wheel passes through the avoiding gap to be in contact with the edge to be ground of the glass; the air outlets of the upper and lower air knives comprise a first arc-shaped section corresponding to the bottom surface of the upper air knife and the top surface of the lower air knife, and two second arc-shaped sections corresponding to the inner surfaces of the upper and lower air knives and located on the opposite sides of the avoiding gap in the glass transmission direction, wherein the two second arc-shaped sections are communicated with the two ends of the first arc-shaped section, and the air flow blown by the upper and lower first and second arc-shaped sections cooperatively blocks the grinding section; the water outlet of the water knife is located in the closed area formed by the upper and lower air knives, and the contact position of the fluid discharged from the water knife on the grinding wheel is located on the side of the first end away from the second end, and the waste generated by grinding is collected in the direction of the second end based on the movement cooperation of the fluid, the glass and the grinding wheel; The main collection branch comprises a backflow chamber communicated with the second end and a main collection pipeline, wherein the backflow chamber forms a main collection hole communicated with the main collection pipeline from the side opposite to the second end, and forms an auxiliary collection hole communicated with the auxiliary collection branch from the bottom, the waste generated by grinding enters the backflow chamber from the second end, and part of the waste enters the main collection pipeline through the main collection hole, and the other part of the waste enters the auxiliary collection branch downwardly through the auxiliary collection hole.

2. The edge polishing apparatus for screen display glass according to claim 1, wherein 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 are respectively intersected with the edge to be ground of the glass.

3. The edge polishing apparatus for screen display glass according to claim 2, wherein The air outlets of the upper and lower air knives are symmetrically arranged upwardly and downwardly; 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 are coincident; 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 is gradually narrowed from the two ends to the middle part.

4. The edge polishing apparatus for screen display glass according to claim 1, wherein The seat body, the water knife seat body and the air knife seat body are sequentially spliced, and the glass inlet is formed between the upper and lower air knives and is arranged in a through manner from inside to outside in the glass transmission direction.

5. The edge polishing apparatus for screen display glass according to claim 4, wherein The upper and lower air knives each form an air inlet cavity, a flow guide channel and an air outlet which are sequentially communicated from inside to outside.

6. The edge polishing apparatus for screen display glass according to claim 4, wherein The lower wind blade and the water blade seat body further form a flow discharge channel extending upwards and downwards and connecting the avoidance gap with the auxiliary collection branch, wherein the top entrance of the flow discharge channel is an arc segment extending around the center of the grinding wheel.

7. The edge polishing apparatus for screen display glass according to claim 1, wherein The water outlet center of the water blade is flush with the center of the grinding section.

8. The edge polishing apparatus for screen display glass according to claim 1, wherein The water blade further forms a flow guide part extending from the water outlet side to the grinding section direction, wherein the flow guide part and the grinding wheel form a flow guide area, and the fluid discharged from the water blade flows along the flow guide area to the second end head.

9. The edge polishing apparatus for screen display glass according to claim 8, wherein The flow guide area gradually narrows along the fluid flow direction.

10. The edge polishing apparatus for screen display glass according to claim 1, wherein The height of the main collection hole is lower than that of the grinding section.

11. The edge polishing apparatus for screen display glass according to claim 1 or 10, wherein The return flow bin is arranged close to the grinding wheel and forms a return flow port matching the outer contour of the part of the grinding wheel close to the second end head; the return flow bin forms a first return flow channel extending from the return flow port along the fluid flow direction from the second end head, and a second return flow channel extending from one end of the first return flow channel away from the grinding wheel and around the center of the grinding wheel, wherein the junction of the first return flow channel and the second return flow channel forms a rounded corner, the main collection hole is arranged close to the rounded corner; the auxiliary collection hole has two and is correspondingly distributed at both ends of the second return flow channel.

12. The edge polishing apparatus for screen display glass according to claim 1, wherein The auxiliary collection branch includes a slow flow bin and a plurality of auxiliary collection pipelines connected with the slow flow bin, wherein the plurality of auxiliary collection pipelines and the main collection pipeline respectively form negative pressure in the slow flow bin and the return flow bin.

13. The edge polishing apparatus for screen display glass according to claim 12, wherein The bottom of the slow flow bin extends upwards and downwards, wherein the connection of the plurality of auxiliary collection pipelines on the slow flow bin is close to the lower edge of the bottom, and the grinding area is above the upper edge of the bottom; and / or, the bottom of the slow flow bin further forms a groove matched with the entrance of the plurality of auxiliary collection pipelines.

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