Glass substrate grinding device

Abstract

The present invention discloses a glass substrate grinding device, which relates to the technical field of glass substrate processing, and comprises a grinding shell and an upper water knife, wherein a through groove suitable for allowing a single side of a glass substrate to pass continuously is formed on the grinding shell along a first horizontal direction; a grinding wheel is arranged inside the grinding shell; a negative pressure interface is arranged on one side of the grinding shell, and the negative pressure interface 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 side of the upper air knife facing inward along a second horizontal direction, and the first air outlet is used to blow air to the single-sided upper surface of the glass substrate; a lower air knife is arranged on the grinding shell, and a second air outlet is arranged on the side of the lower air knife facing inward along the second horizontal direction, and the second air outlet is used to blow air to the single-sided lower surface of the glass substrate; the lower air knife and the upper air knife are arranged symmetrically at the two ends of the through groove in a vertical direction; and the upper water knife is used to spray water to the upper surface of the grinding area of ​​the glass substrate. The present invention can effectively block the grinding water inside the grinding shell.

Description

Technical Field

[0001] The invention relates to the technical field of glass substrate processing, and in particular to a glass substrate grinding device. Background Art

[0002] One of the most important processes in the production and processing of glass substrates is to grind the four edges of the glass substrate separately. The traditional grinding process uses a high-speed rotating grinding wheel to grind the edge of the glass substrate. This grinding method will produce a thermal effect on the edge of the glass substrate, resulting in unstable grinding effect and prone to defects such as chip drop and cracks. In order to avoid the above technical defects, the traditional grinding mechanism adds a water jet to spray cooling water on the contact surface between the grinding wheel and the glass substrate for cooling. A large amount of glass dust, glass debris, and particles dropped by the passivation of the grinding wheel and other objects generated by grinding are mixed with the cooling water under the high-speed rotation of the grinding wheel to form grinding water. However, the existing grinding mechanism cannot fully retain the grinding water in the grinding area of ​​a single side of the glass substrate during the grinding process. The grinding water is easily thrown by the rotating grinding wheel to the non-grinding area on the surface of the glass substrate and adheres to the surface of the non-grinding area of ​​the glass substrate, affecting the quality of the ground glass substrate, thereby affecting the subsequent process quality of the glass substrate. Summary of the invention

[0003] Therefore, the technical problem to be solved by the present invention is to overcome the defect of the grinding mechanism in the prior art that grinding water is easily thrown onto and adheres to the non-grinding area on the surface of the glass substrate during the grinding process, affecting the quality of the ground glass substrate and thus affecting the quality of subsequent process treatment of the glass substrate, thereby providing a glass substrate grinding device.

[0004] A glass substrate grinding device provided according to the present invention comprises:

[0005] A grinding shell having a through groove formed therethrough along a first horizontal direction, the through groove extending from an outer surface of the grinding shell toward an inner portion along a second horizontal direction so that the through groove is connected to an inner portion of the grinding shell, the through groove being suitable for allowing a single edge of a glass substrate to continuously pass through along the first horizontal direction, the first horizontal direction and the second horizontal direction being perpendicular to each other;

[0006] A grinding wheel, disposed in the grinding shell and driven to rotate by a rotating assembly;

[0007] A negative pressure interface is provided on one side of the grinding shell and is used to connect an external device and to place the interior of the grinding shell in a negative pressure state;

[0008] An upper air knife is disposed on the grinding shell and is provided with a first air outlet on one side facing inward along the second horizontal direction, wherein the first air outlet is used to blow air toward a single upper surface of the glass substrate;

[0009] A lower air knife is arranged on the grinding shell, and a second air outlet is arranged on one side facing inward along a second horizontal direction, and the second air outlet is used to blow air toward the lower surface of one side of the glass substrate; the lower air knife and the upper air knife are arranged symmetrically at two ends of the through groove along the vertical direction;

[0010] The upper water knife is located on the side of the upper air knife facing inward along the second horizontal direction, and is provided with a first water spray port on the side facing inward along the second horizontal direction. The first water spray port is used to spray water onto the upper surface of the grinding area of ​​the glass substrate.

[0011] A glass substrate grinding device according to the present invention has at least the following technical effects:

[0012] 1. By symmetrically arranging the upper air knife and the lower air knife at the upper and lower ends of the through groove in the vertical direction, because the airflow blown out of the first air outlet and the second air outlet falls symmetrically on the upper and lower surfaces of the single side of the glass substrate located in the through groove, and falls on the side of the grinding area of ​​the glass substrate facing outward along the second horizontal direction, the airflow blown out from the first air outlet and the second air outlet can form a wind wall on the upper and lower surfaces of the single side of the glass substrate located in the through groove respectively, which can effectively block the grinding water inside the grinding shell, and prevent the grinding water from being thrown out and adhering to the non-grinding area on the surface of the glass substrate; and the airflow blown out of the first air outlet and the second air outlet will change the airflow direction after contacting the upper and lower surfaces of the glass substrate respectively, and turn into flowing from the outside to the inside along the second horizontal direction, so as to remove the residual grinding water on the edge of the glass substrate, avoid the grinding water on the surface of the glass substrate that has been ground and passes through the through groove, ensure the quality of the ground glass substrate, and thus improve the subsequent process quality of the glass substrate.

[0013] 2. By providing a negative pressure interface on one side of the grinding shell, during the process of grinding one side of the glass substrate, the negative pressure interface is connected to an external device so that the interior of the grinding shell is always in a negative pressure state, and the pressure difference in the through slot for the glass substrate to pass through generates a suction force from the outside to the inside along the second horizontal direction. On the one hand, it is achieved that the wind blown by the upper air knife and the lower air knife and the water sprayed by the upper water knife always fall within the grinding area of ​​the glass substrate without maintaining a strict supply balance of the two fluids of water and gas, thereby reducing the control difficulty and ensuring the grinding quality. On the other hand, a blocking line can be generated on the path of the grinding water from the inside to the outside along the second horizontal direction, effectively preventing the grinding water from overflowing from the inside of the grinding shell, preventing the grinding water from being thrown out and adhering to the non-grinding area on the surface of the glass substrate, and ensuring that there is no grinding water on the surface of the glass substrate that has been ground and passed through the through slot, thereby ensuring the quality of the ground glass substrate.

[0014] Preferably, the first air outlet is arranged downwardly inclined from the outer surface of the grinding shell toward the inner side along the second horizontal direction; the second air outlet is arranged upwardly inclined from the outer surface of the grinding shell toward the inner side along the second horizontal direction.

[0015] Preferably, the upper air knife comprises a first mounting portion detachably connected to the grinding shell, the first mounting portion is provided with a first inclined surface along a second horizontal direction toward the side of the grinding shell, the side of the grinding shell facing the first mounting portion is provided with a second inclined surface at a position corresponding to the first inclined surface, the second inclined surface is inclined downward from the outer surface of the grinding shell toward the inner side along a second horizontal direction, the second inclined surface is arranged in a tilted manner, and the second inclined surface is parallel to the first inclined surface; when the upper air knife is connected to the grinding shell, the first inclined surface and the second inclined surface are arranged at intervals, and the sandwiched area between the two forms the first air outlet;

[0016] And / or, the downwind knife includes a second mounting portion detachably connected to the grinding shell, the second mounting portion is provided with a third inclined surface along a second horizontal direction toward the side of the grinding shell, the side of the grinding shell facing the second mounting portion is provided with a fourth inclined surface at a position corresponding to the third inclined surface, the fourth inclined surface is arranged from the outer surface of the grinding shell toward the inner side along the second horizontal direction, the fourth inclined surface is inclined upward, and the fourth inclined surface is parallel to the third inclined surface; when the downwind knife is connected to the grinding shell, the third inclined surface and the fourth inclined surface are arranged at intervals, and the sandwich area between the two forms the second air outlet.

[0017] Preferably, it further comprises a lower water knife, which is located on the side of the lower air knife facing inward along the second horizontal direction, and a second water spray port is provided on the side facing inward along the second horizontal direction, and the second water spray port is used to spray water to the lower surface of the grinding area of ​​the glass substrate.

[0018] Preferably, the grinding shell is provided with a first mounting hole at a position corresponding to the upper water knife, at least one end of the first mounting hole along the first horizontal direction penetrates the grinding shell, and the first mounting hole is connected to the interior of the grinding shell through a first connecting groove on the side facing inward along the second horizontal direction; the upper water knife includes a first water supply pipe rotatably connected in the first mounting hole, one end of the first water supply pipe extends to the outside of the grinding shell; the first water supply pipe is connected to a first water spray part on one side facing the first connecting groove, one end of the first water spray part passes through the first connecting groove and extends into the grinding shell, and is provided with the first water spray port;

[0019] And / or, a second mounting hole is provided at a position of the grinding shell corresponding to the water knife, at least one end of the second mounting hole along the first horizontal direction passes through the grinding shell, and the side of the second mounting hole facing inward along the second horizontal direction is connected to the interior of the grinding shell through a second connecting groove; the water knife includes a second water supply pipe rotatably connected in the second mounting hole, one end of the second water supply pipe extends to the outside of the grinding shell; the second water supply pipe is connected to a second water spray part on one side facing the second connecting groove, one end of the second water spray part passes through the second connecting groove and extends into the grinding shell, and is provided with the second water spray port.

[0020] Preferably, a first indicator is provided at one end of the first water supply pipe extending outside the grinding shell; a first scale mark is provided on the outer wall of the grinding shell at a position corresponding to the first indicator;

[0021] And / or, a second indicator is provided at one end of the second water supply pipe extending outside the grinding shell; and a second scale mark is provided on the outer wall of the grinding shell at a position corresponding to the second indicator.

[0022] Preferably, two negative pressure interfaces are provided, and the two negative pressure interfaces are arranged on both sides of the grinding shell relatively along the first horizontal direction; the negative pressure interface is located on the inner side of the through groove along the second horizontal direction.

[0023] Preferably, the grinding shell is connected to a drainage portion at the middle of the lower end in the vertical direction, and the drainage portion is arranged in a funnel shape;

[0024] And / or, a water spray head is provided on the grinding shell, and the water spray head is used to spray cooling water to the grinding wheel.

[0025] Preferably, a size of the first air outlet along the first horizontal direction is greater than a size of the first water spray outlet along the first horizontal direction.

[0026] Preferably, the rotating assembly comprises a motor arranged vertically at the upper end of the grinding shell, and the output end of the motor extends into the grinding shell and is connected to the grinding wheel;

[0027] And / or, the outer cover of the grinding shell is provided with a protective cover.

[0028] Additional aspects and advantages of the present invention will be given in part in the following description and in part will be obvious from the following description, or will be learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] In order to more clearly illustrate the specific implementation methods of the present invention or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0030] Figure 1 is a schematic diagram of the three-dimensional structure of a glass substrate grinding device according to this embodiment;

[0031] Figure 2 for Figure 1 Schematic diagram of the decomposition structure;

[0032] Figure 3 for Figure 2 Schematic diagram of some structures in ;

[0033] Figure 4 for Figure 3 A schematic diagram of a main structure in cross-section;

[0034] Figure 5 for Figure 4 The enlarged schematic diagram of point A in the middle;

[0035] Figure 6 for Figure 5 The enlarged schematic diagram of point B in the middle;

[0036] Figure 7 for Figure 3 Schematic diagram of the decomposition structure;

[0037] Figure 8 is a schematic structural diagram of a grinding shell in a glass substrate grinding device of this embodiment;

[0038] Fig. 9 for Figure 8 A structural diagram from another perspective;

[0039] Fig.10 It is a structural schematic diagram of the upper air knife and the lower air knife assembly in a glass substrate grinding device of this embodiment.

[0040] Description of reference numerals:

[0041] 1-grinding shell, 11-through groove, 12-negative pressure interface, 13-second inclined surface, 14-fourth inclined surface, 15-first mounting hole, 151-first connecting groove, 16-second mounting hole, 161-second connecting groove, 171-first scale mark, 172-second scale mark, 18-spray head, 191-first internal threaded hole, 192-second internal threaded hole;

[0042] 21-grinding wheel, 22-motor;

[0043] 3-upper wind knife, 31-first air outlet, 32-first mounting portion, 321-first wind slot, 322-first inclined surface, 323-first through hole, 33-first wind cavity;

[0044] 4-lower wind knife, 41-second air outlet, 42-second mounting portion, 421-second wind slot, 422-third inclined surface, 423-second through hole, 43-second wind cavity;

[0045] 5-water knife, 51-first water supply pipe, 52-first water spraying part, 53-first indicator;

[0046] 6-water knife, 61-second water supply pipe, 62-second water spray part, 63-second indicator;

[0047] 7-protective cover, 71-drainage part, 72-first sealing cover, 73-second sealing cover, 74-installation groove. DETAILED DESCRIPTION

[0048] The technical solution of the present invention will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0049] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0050] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0051] In addition, the technical features involved in the different embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0052] like Figures 2 to 9 The present embodiment shows a glass substrate grinding device, comprising a grinding shell 1 and an upper water knife 5. A through groove 11 is formed on the grinding shell 1 along a first horizontal direction. The through groove 11 extends from the outer surface of the grinding shell 1 to the inside along a second horizontal direction, so that the through groove 11 is connected with the inside of the grinding shell 1. The through groove 11 is suitable for allowing a single side of the glass substrate to pass continuously along the first horizontal direction. A grinding wheel 21 driven to rotate by a rotating assembly is provided in the grinding shell 1. A negative pressure interface 12 is provided on one side of the grinding shell 1. The negative pressure interface 12 is used to connect an external device and make the inside of the grinding shell 1 in a negative pressure state. An upper air knife is provided on the grinding shell 1. 3, the upper air knife 3 is provided with a first air outlet 31 on the side facing inward along the second horizontal direction, and the first air outlet 31 is used to blow air to the single-sided upper surface of the glass substrate; the grinding shell 1 is provided with a lower air knife 4, and the lower air knife 4 is provided with a second air outlet 41 on the side facing inward along the second horizontal direction, and the second air outlet 41 is used to blow air to the single-sided lower surface of the glass substrate; the lower air knife 4 and the upper air knife 3 are vertically symmetrically arranged at the two ends of the through groove 11; the upper water knife 5 is located on the side facing inward along the second horizontal direction of the upper air knife 3, and is provided with a first water spray port on the side facing inward along the second horizontal direction, and the first water spray port is used to spray water to the upper surface of the grinding area of ​​the glass substrate. It can be understood that the first horizontal direction, the second horizontal direction and the vertical direction mentioned in the text refer to Figure 7 The first horizontal direction, the second horizontal direction and the vertical direction are perpendicular to each other, and the first horizontal direction and the second horizontal direction are located on the same horizontal plane.

[0053] The grinding device of this embodiment is symmetrically provided with an upper air knife 3 and a lower air knife 4 at the upper and lower ends of the through groove 11 in the vertical direction. Because the airflow blown out of the first air outlet 31 and the second air outlet 41 falls symmetrically on the upper and lower surfaces of a single side of the glass substrate located in the through groove 11, and falls on the side of the grinding area of ​​the glass substrate facing outward along the second horizontal direction, the airflow blown out from the first air outlet 31 and the second air outlet 41 can form a wind wall on the upper and lower surfaces of a single side of the glass substrate located in the through groove 11, respectively, and can effectively block the grinding water inside the grinding shell 1, so as to prevent the grinding water from being thrown out and adhering to the non-grinding area on the surface of the glass substrate; and the airflow blown out of the first air outlet and the second air outlet 41 will change the airflow direction after contacting the upper and lower surfaces of the glass substrate respectively, and change to flow from the outside to the inside along the second horizontal direction, so as to remove the residual grinding water on the edge of the glass substrate, avoid the grinding water on the surface of the glass substrate that has been ground and passes through the through groove 11, and ensure the quality of the ground glass substrate, thereby improving the quality of subsequent process treatment of the glass substrate. At the same time, by providing a negative pressure interface 12 on one side of the grinding shell 1, during the process of grinding a single side of the glass substrate, the negative pressure interface 12 is connected to an external device so that the interior of the grinding shell 1 is always in a negative pressure state, and the pressure difference in the through groove 11 through which the glass substrate passes generates a suction force from the outside to the inside along the second horizontal direction, which can ensure that the wind blown by the upper wind knife 3 and the lower wind knife 4 and the water sprayed by the upper water knife 5 always fall within the grinding area of ​​the glass substrate without maintaining a strict supply balance of the two fluids of water and gas, thereby reducing the control difficulty and ensuring the grinding quality. On the other hand, a blocking line can be generated on the path of the grinding water from the inside to the outside along the second horizontal direction, effectively preventing the grinding water from overflowing the interior of the grinding shell 1, preventing the grinding water from being thrown out and adhering to the non-grinding area on the surface of the glass substrate, and ensuring that there is no grinding water on the surface of the glass substrate that has been ground and passed through the through groove 11, thereby ensuring the quality of the ground glass substrate.

[0054] It should be noted that the grinding area of ​​the glass substrate mentioned herein refers to the area where one side of the glass substrate passes through the through slot 11 into the grinding shell 1 and contacts the grinding wheel 21 to be ground.

[0055] It is understandable that, during the process of grinding one side of the glass substrate, the glass substrate will be conveyed by the conveying mechanism to flow in the through groove 11 at a uniform speed.

[0056] like Figures 4 to 6As shown, in some embodiments of the present invention, the first air outlet 31 is arranged along the second horizontal direction from the outer surface of the grinding shell 1 toward the inner side, and the first air outlet 31 is arranged to be inclined downward; the second air outlet 41 is arranged along the second horizontal direction from the outer surface of the grinding shell 1 toward the inner side, and the second air outlet 41 is arranged to be inclined upward. The first air outlet 31 arranged to be gradually inclined downward and inward can form an inclined wind wall to effectively block the grinding water inside the grinding shell 1 when blowing wind toward the single-sided upper surface of the glass substrate located in the through groove 11; and can more smoothly change the direction of the airflow to flow from the outside to the inside along the second horizontal direction after the airflow blown out of the first air outlet 31 contacts the upper surface of the glass substrate, thereby reducing the loss of kinetic energy in the process of changing direction, better removing the residual grinding water on the edge of the glass substrate, and avoiding the grinding water on the surface of the glass substrate that has been ground and passed through the through groove 11; at the same time When the second air outlet 41 which is arranged to be gradually inclined upward and inward blows the wind toward the single lower surface of the glass substrate in the through groove 11, it can form an inclined wind wall to effectively block the grinding water inside the grinding shell 1; and after the airflow blown out of the second air outlet 41 contacts the lower surface of the glass substrate, it can change the direction of the airflow more smoothly to flow from the outside to the inside along the second horizontal direction, thereby reducing the loss of kinetic energy in the process of changing direction, better removing the grinding water remaining on the edge of the glass substrate, and avoiding the grinding water on the surface of the glass substrate that has been ground and passed through the through groove 11.

[0057] like Figures 3 to 8 and Fig.10As shown, in some embodiments of the present invention, the upper wind knife 3 includes a first mounting portion 32 detachably connected to the grinding shell 1, the first mounting portion 32 is provided with a first inclined surface 322 along the second horizontal direction toward the side of the grinding shell 1, the side of the grinding shell 1 facing the first mounting portion 32 is provided with a second inclined surface 13 corresponding to the position of the first inclined surface 322, the second inclined surface 13 is arranged from the outer surface of the grinding shell 1 toward the inside along the second horizontal direction, the second inclined surface 13 is inclined downward, and the second inclined surface 13 is parallel to the first inclined surface 322; when the upper wind knife 3 is connected to the grinding shell 1, the first inclined surface 322 and the second inclined surface 13 are arranged at intervals and the sandwich area between the two forms the first air outlet 31. When the upper air knife 3 is connected to the grinding shell 1 as a whole, the sandwiched area between the first inclined surface 322 and the second inclined surface 13 forms the first air outlet 31 from the outer surface of the grinding shell 1 to the inside, and the whole structure is more compact and convenient to process the first inclined surface 322 on the first mounting portion 32, thereby reducing the manufacturing cost of the components and ensuring that the wind blown out from the first air outlet 31 accurately falls on the single-sided upper surface of the glass substrate located in the through groove 11, so as to form an inclined wind wall to effectively block the grinding water inside the grinding shell 1; and the airflow blown out from the first air outlet 31 can be changed more smoothly after contacting the upper surface of the glass substrate. The airflow direction is changed to flow from outside to inside along the second horizontal direction, and the loss of kinetic energy is reduced in the process of changing direction, so as to better remove the residual grinding water on the edge of the glass substrate and avoid the grinding water on the surface of the glass substrate that has been ground and passed through the through groove 11; at the same time, the first mounting portion 32 is connected to the grinding shell 1 in a detachable manner. Compared with forming the two as one piece, on the one hand, it is convenient to process the two parts separately and then assemble them, and the assembly process is simple and the production cost is low; on the other hand, it is convenient to remove and replace or repair one of the two parts when it is damaged, so as to reduce the subsequent maintenance cost. It should be noted that the second inclined surface 13 starts from the outer surface of the grinding shell 1 and ends at the junction with the through groove 11; it ensures that the wind blown out from the first air outlet 31 enters the through groove 11 and falls on the single-sided upper surface of the glass substrate.

[0058] Specifically, the first mounting portion 32 is recessed with a first wind groove 321 along the second horizontal direction toward the side of the grinding shell 1; the first inclined surface 322 is connected to the first wind groove 321 along the vertical upper end, and the second inclined surface 13 is connected to the through groove 11 along the vertical lower end; when the upper wind knife 3 is connected to the grinding shell 1, the first wind groove 321 and the side of the grinding shell 1 facing the first mounting portion 32 form a closed first wind cavity 33. By providing the first wind groove 321 on the side of the first mounting portion 32 facing the grinding shell 1, and the first inclined surface 322 is connected to the first wind groove 321 along the vertical upper end, when the upper wind knife 3 is connected to the grinding shell 1 as a whole, the first wind groove 321 and the side of the grinding shell 1 form a closed first wind cavity 33, and the sandwiched area between the first inclined surface 322 and the second inclined surface 13 forms a first air outlet 31 connecting the first wind cavity 33 and the through groove 11, so that the gas transported to the first wind cavity 33 is blown to the single-sided upper surface of the glass substrate located in the through groove 11 through the first air outlet 31. The whole structure is more compact, and it is convenient to process the first wind groove 321 and the first inclined surface 322 on the first mounting portion 32, thereby reducing the manufacturing cost of the components, thereby reducing the manufacturing cost of the grinding device of this embodiment. At the same time, the first mounting portion 32 and the grinding shell 1 are connected into one body by a detachable connection. Compared with molding the two as one body, on the one hand, it is convenient to process the two components separately and then assemble them, and the production cost is lower; on the other hand, when one of the two components is damaged, it is convenient to remove it for replacement or repair, thereby reducing subsequent maintenance costs.

[0059] It should be noted that the first air cavity 33 is used to connect to an external air supply device so that during the grinding process, the gas is transported into the first air cavity 33 and blown toward the single upper surface of the glass substrate in the through groove 11 through the first air outlet 31 .

[0060] This embodiment does not limit the detachable connection structure between the first mounting portion 32 and the grinding shell 1. In order to improve the convenience of disassembly and assembly of the two on the basis of ensuring the tightness of the connection between the two, as shown in FIG. Figure 3 , Figure 8 and Fig.10 As shown, preferably, the grinding shell 1 is provided with a first internal threaded hole 191 at one end facing the first mounting portion 32, and a first through hole 323 is formed through the first mounting portion 32 at a position corresponding to the first internal threaded hole 191 along a second horizontal direction; when the upper air knife 3 and the grinding shell 1 are assembled into one, a first fastening bolt is used to pass through the first through hole 323 and be screwed into the first internal threaded hole 191. Of course, in other embodiments, the first mounting portion 32 and the grinding shell 1 can also be connected in a removable manner by means of a slot and a plug column.

[0061] like Figures 3 to 8 and Fig.10 As shown, in some embodiments of the present invention, the lower wind knife 4 includes a second mounting portion 42 detachably connected to the grinding shell 1, the second mounting portion 42 is provided with a third inclined surface 422 along the second horizontal direction toward the side of the grinding shell 1, the side of the grinding shell 1 facing the second mounting portion 42 is provided with a fourth inclined surface 14 at a position corresponding to the third inclined surface 422, the fourth inclined surface 14 is arranged from the outer surface of the grinding shell 1 toward the inner side along the second horizontal direction, the fourth inclined surface 14 is inclined upward, and the fourth inclined surface 14 is parallel to the third inclined surface 422; when the lower wind knife 4 is connected to the grinding shell 1, the third inclined surface 422 and the fourth inclined surface 14 are arranged at intervals and the sandwiched area between the two forms the second air outlet 41. When the lower wind knife 4 is connected to the grinding shell 1 as a whole, the sandwiched area between the third inclined surface 422 and the fourth inclined surface 14 forms a second air outlet 41 from the outer surface of the grinding shell 1 to the inside, and the whole structure is more compact and convenient for processing the third inclined surface 422 on the second mounting portion 42, thereby reducing the manufacturing cost of the components and ensuring that the wind blown out from the second air outlet 41 accurately falls on the single-sided lower surface of the glass substrate located in the through groove 11, so as to form an inclined wind wall to effectively block the grinding water inside the grinding shell 1; and the airflow blown out from the second air outlet 41 can be changed more smoothly after contacting the lower surface of the glass substrate. The airflow direction is changed to flow from the outside to the inside along the second horizontal direction, and the loss of kinetic energy is reduced in the process of changing direction, so as to better remove the residual grinding water on the edge of the glass substrate and avoid the grinding water on the surface of the glass substrate that has been ground and passed through the through groove 11; at the same time, the second mounting portion 42 is connected to the grinding shell 1 in a detachable manner. Compared with forming the two as one piece, on the one hand, it is convenient to process the two parts separately and then assemble them, and the assembly process is simple and the production cost is low; on the other hand, it is convenient to remove and replace or repair one of the two parts when it is damaged, so as to reduce the subsequent maintenance cost. It should be noted that the fourth inclined surface 14 starts from the outer surface of the grinding shell 1 and ends at the junction with the through groove 11; it ensures that the wind blown out from the second air outlet 41 enters the through groove 11 and falls on the single-sided upper surface of the glass substrate, and forms an inclined wind wall in the through groove 11.

[0062] Specifically, the second mounting portion 42 is recessed with a second wind groove 421 along the second horizontal direction toward the side of the grinding shell 1; the third inclined surface 422 is connected to the second wind groove 421 along the vertical lower end, and the fourth inclined surface 14 is connected to the through groove 11 along the vertical upper end; when the lower wind knife 4 is connected to the grinding shell 1, the second wind groove 421 and the side of the grinding shell 1 facing the second mounting portion 42 form a closed second wind cavity 43. By providing a second wind groove 421 on the side of the second mounting portion 42 facing the grinding shell 1, and the third inclined surface 422 is connected to the second wind groove 421 along the vertical lower end, when the lower wind knife 4 is connected to the grinding shell 1 as a whole, the second wind groove 421 and the side of the grinding shell 1 form a closed second wind cavity 43, and the sandwiched area between the third inclined surface 422 and the fourth inclined surface 14 forms a second air outlet 41 connecting the second wind cavity 43 and the through groove 11, so that the gas transported to the second wind cavity 43 is blown to the single-sided lower surface of the glass substrate located in the through groove 11 through the second air outlet 41. The whole structure is more compact, and it is convenient to process the second wind groove 421 and the third inclined surface 422 on the second mounting portion 42, thereby reducing the manufacturing cost of the components, thereby reducing the manufacturing cost of the grinding device of this embodiment. At the same time, the second mounting portion 42 and the grinding shell 1 are connected into one body by a detachable connection. Compared with molding the two as one body, on the one hand, it is convenient to process the two components separately and then assemble them, and the production cost is lower; on the other hand, when one of the two components is damaged, it is convenient to remove it for replacement or repair, thereby reducing subsequent maintenance costs.

[0063] It should be noted that the second air cavity 43 is used to connect to an external air supply device so that during the grinding process, the gas is transported into the second air cavity 43 and blown toward the single lower surface of the glass substrate in the through groove 11 through the second air outlet 41 .

[0064] This embodiment does not limit the detachable connection structure between the second mounting portion 42 and the grinding shell 1. In order to improve the convenience of disassembly and assembly of the two on the basis of ensuring the tightness of the connection between the two, as shown in FIG. Figure 3 , Figure 8 and Fig.10 As shown, preferably, the grinding shell 1 is provided with a second internal threaded hole 192 at one end facing the second mounting portion 42, and a second through hole 423 is formed on the second mounting portion 42 along a second horizontal direction at a position corresponding to the second internal threaded hole 192; when the lower wind knife 4 and the grinding shell 1 are assembled into one, a second fastening bolt is used to pass through the second through hole 423 and be screwed into the second internal threaded hole 192. Of course, in other embodiments, the second mounting portion 42 and the grinding shell 1 can also be connected in a removable manner by means of a slot and a plug column.

[0065] like Figures 2 to 5 as well as Figure 7 As shown, in some embodiments of the present invention, the grinding device further includes a lower water knife 6, the lower water knife 6 is located on the side of the lower air knife 4 facing inward along the second horizontal direction, and a second water spray port is provided on the side facing inward along the second horizontal direction, and the second water spray port is used to spray water to the lower surface of the grinding area of ​​the glass substrate. Cooling water is sprayed to the upper and lower surfaces of the grinding area of ​​the glass substrate through the first water spray port and the second water spray port respectively and simultaneously, so as to ensure the uniformity of cooling of the upper and lower surfaces of the grinding area of ​​the glass substrate, improve the uniformity of the grinding amplitude of the upper and lower sides of a single side of the glass substrate, and ensure the quality of the ground glass substrate.

[0066] It should be noted that the upper water knife 5 and the lower water knife 6 are both connected to a water supply device, and the water supply power and water flow rate of the water supply device are controlled to control the water spray volume of the first water spray port and the second water spray port per unit time.

[0067] like Figures 3 to 5 as well as Figures 7 to 9 As shown, in some embodiments of the present invention, a first mounting hole 15 is provided at a position of the grinding shell 1 corresponding to the lower water knife 6, at least one end of the first mounting hole 15 along the first horizontal direction passes through the grinding shell 1, and the first mounting hole 15 is connected to the interior of the grinding shell 1 through a first connecting groove 151 on the side facing inward along the second horizontal direction; the upper water knife 5 includes a first water supply pipe 51 rotatably connected in the first mounting hole 15, and one end of the first water supply pipe 51 extends to the outside of the grinding shell 1; the first water supply pipe 51 is connected to a first water spray part 52 on one side facing the first connecting groove 151, and one end of the first water spray part 52 passes through the first connecting groove 151 and extends into the grinding shell 1, and is provided with the first water spray port. By rotating the first water supply pipe 51 around the first horizontal direction and connecting it in the first mounting hole 15, with one end extending outside the grinding shell 1, the first water supply pipe 51 can be conveniently rotated to adjust the angle of the first water spray portion 52, thereby steplessly and flexibly adjusting the water spray angle of the first water spray port to meet different cooling requirements on the upper surface of the grinding area of ​​the glass substrate, which is more practical.

[0068] It can be understood that no matter to which angle the first water supply pipe 51 is rotated around the first horizontal direction, the position where the cooling water sprayed from the first water spray port falls on the upper surface of the glass substrate is located on the inner side of the position where the first air outlet 31 blows onto the upper surface of the glass substrate along the second horizontal direction.

[0069] It should be noted that both ends of the first water supply pipe 51 are connected to water supply equipment to ensure that after one of the water supply equipment fails, cooling water can still be sprayed normally onto the upper surface of the grinding area of ​​the glass substrate. More specifically, the water inlet end of the first water supply pipe 51 is connected to the water supply equipment through a hose, and the hose provides a certain amount of expansion and contraction, so that the first water supply pipe 51 can be smoothly rotated and adjusted within a set angle range.

[0070] like Figure 3 , Figure 7 and Figure 8 As shown, in some embodiments of the present invention, a first indicator 53 is provided at one end of the first water supply pipe 51 extending outside the grinding shell 1; a first scale mark 171 is provided on the outer wall of the grinding shell 1 at a position corresponding to the first indicator 53. By observing the scale position of the first indicator 53 falling on the first scale mark 171, it can be intuitively determined where the water spray angle of the first water spray port is adjusted to, so as to ensure that the water spray angle of the first water spray port is adjusted to a desired angle position.

[0071] like Figures 3 to 5 as well as Figures 7 to 9 As shown, in some embodiments of the present invention, a second mounting hole 16 is provided at a position of the grinding shell 1 corresponding to the water knife 6, at least one end of the second mounting hole 16 along the first horizontal direction passes through the grinding shell 1, and the side of the second mounting hole 16 facing inward along the second horizontal direction is connected to the interior of the grinding shell 1 through a second connecting groove 161; the water knife 6 includes a second water supply pipe 61 rotatably connected in the second mounting hole 16, and one end of the second water supply pipe 61 extends to the outside of the grinding shell 1; the second water supply pipe 61 is connected to a second water spray part 62 on one side facing the second connecting groove 161, and one end of the second water spray part 62 passes through the second connecting groove 161 and extends into the grinding shell 1, and is provided with a second water spray port. By rotating the second water supply pipe 61 around the first horizontal direction and connecting it in the second mounting hole 16, with one end extending outside the grinding shell 1, the second water supply pipe 61 can be conveniently rotated to adjust the angle of the second water spray portion 62, thereby steplessly and flexibly adjusting the water spray angle of the second water spray port to meet different cooling requirements for the lower surface of the grinding area of ​​the glass substrate, which is more practical.

[0072] It can be understood that no matter to which angle the second water supply pipe 61 is rotated around the first horizontal direction, the position where the cooling water sprayed from the second water spray port falls on the lower surface of the glass substrate is located on the inner side of the position where the second air outlet 41 blows onto the lower surface of the glass substrate along the second horizontal direction.

[0073] It should be noted that both ends of the second water supply pipe 61 are connected to water supply equipment to ensure that after one of the water supply equipment fails, cooling water can still be sprayed normally to the lower surface of the grinding area of ​​the glass substrate. More specifically, the water inlet end of the second water supply pipe 61 is connected to the water supply equipment through a hose, and the hose provides a certain amount of expansion and contraction, so that the second water supply pipe 61 can be smoothly rotated and adjusted within a set angle range.

[0074] like Figure 3 , Figure 7 and Figure 8 As shown, in some embodiments of the present invention, a second indicator 63 is provided at one end of the second water supply pipe 61 extending outside the grinding shell 1; a second scale mark 172 is provided on the outer wall of the grinding shell 1 at a position corresponding to the second indicator 63. By observing the scale position of the second indicator 63 falling on the second scale mark 172, it can be intuitively determined where the water spray angle of the second water spray port is adjusted to, so as to ensure that the water spray angle of the second water spray port is adjusted to a desired angle position.

[0075] like Figure 4 , Figure 7 and Fig. 9 As shown, in some embodiments of the present invention, two negative pressure interfaces 12 are provided, and the two negative pressure interfaces 12 are relatively provided on both sides of the grinding shell 1 along the first horizontal direction; the negative pressure interface 12 is located on the side of the through slot 11 facing inward along the second horizontal direction. Through the two negative pressure interfaces 12 relatively provided along the first horizontal direction and the external device, the vacuum degree of the inside of the grinding shell 1 in the negative pressure state is increased, thereby increasing the suction force from the outside to the inside due to the pressure difference in the through slot 11 along the second horizontal direction, and better ensuring that the grinding water is always retained in the grinding shell 1. At the same time, by arranging the negative pressure interface 12 on the side of the through slot 11 facing inward along the second horizontal direction, the vacuum degree of the part of the grinding shell 1 located on the water jet 5 facing inward along the second horizontal direction is greater than the vacuum degree of the part of the grinding shell 1 close to the water jet 5, thereby generating a greater suction force from the outside to the inside along the second horizontal direction, ensuring that the grinding water does not overflow from the inside of the grinding shell 1.

[0076] like Figure 1 and Figure 2 As shown, in some embodiments of the present invention, the grinding shell 1 is connected to a drainage portion 71 in the middle of the lower end in the vertical direction, and the drainage portion 71 is arranged in a funnel shape. During the grinding process, the negative pressure interface 12 is connected to the external device so that the inside of the grinding shell 1 is always kept in a negative pressure state, and the wind blown out of the first air outlet 31 and the second air outlet 41 forms a wind wall, so that the grinding water is retained in the grinding shell 1 and does not overflow; the grinding water generated after the grinding is completed is discharged in time by gravity through the drainage portion 71, so as to avoid the accumulation of grinding water and affect the grinding quality of the glass substrate.

[0077] like Figure 7 As shown, in some embodiments of the present invention, the size of the first air outlet 31 along the first horizontal direction is greater than the size of the first water jet along the first horizontal direction. This makes it possible that the wind-blown clean water area formed by the wind blown out of the first air outlet 31 and the second outlet falling on the single-side upper and lower surfaces of the glass substrate located in the through groove 11 is larger than the grinding cooling area formed by the cooling water sprayed from the first water jet falling on the upper surface of the glass substrate, and the grinding water remaining on the edge of the glass substrate is fully removed to ensure the effect of removing the grinding water, thereby ensuring that there is no grinding water on the glass substrate that has been ground and passed through the through groove 11. Specifically, the size of the second air outlet 41 along the first horizontal direction is greater than the size of the second water jet along the first horizontal direction.

[0078] like Figure 1 and Figure 2 As shown, in some embodiments of the present invention, the rotating assembly includes a motor 22 arranged vertically at the upper end of the grinding shell 1, and the output end of the motor 22 extends into the grinding shell 1 and is connected to the grinding wheel 21. The motor 22 is controlled to rotate to drive the mounting plate grinding wheel 21 to rotate vertically, thereby grinding the glass substrate. Specifically, the motor 22 is set as a servo motor 22 or a gear reduction motor 22, etc.

[0079] like Figure 1 and Figure 2 As shown, in some embodiments of the present invention, the outer cover of the grinding shell 1 is provided with a protective cover 7; the grinding shell 1, the upper air knife 3, the lower air knife 4 and the upper water knife 5 are hidden in the protective cover 7 to avoid damage by external collision. In order to more conveniently install the grinding wheel 21 into the interior of the grinding shell 1, as shown in FIG. Figure 1 and Figure 2 As shown, specifically, the grinding shell 1 is provided with an opening connected to the inside of the grinding shell 1 along the vertical upper end surface; the upper end surface of the protective cover 7 is detachably connected with a first sealing cover 72 and a second sealing cover 73 at a position corresponding to the opening of the grinding shell 1, and the first sealing cover 72 and the second sealing cover 73 are arranged opposite to each other along a first horizontal direction, and are used to seal the opening of the grinding shell 1 to ensure that the negative pressure interface 12 is connected to an external device during the grinding process so that the inside of the grinding shell 1 is always in a negative pressure state. Figure 1 As shown, more specifically, the motor 22 is vertically arranged on the upper end surface of the protective cover 7, and a mounting groove 74 for the output end of the motor 22 to pass through is formed at one end of the first sealing cover 72 and the second sealing cover 73 facing each other along a first horizontal direction.

[0080] It should be noted that the first sealing cover 72 and the second sealing cover 73 are both detachably connected to the protective cover 7 as a whole by means of threaded connection between bolts and internal threaded holes.

[0081] Considering that the high-speed rotating grinding wheel 21 will heat up due to friction during the process of grinding one side of the glass substrate, in order to timely cool the grinding wheel 21, while ensuring the grinding effect and increasing the service life of the grinding wheel 21; Figure 2 , Figure 3 as well as Figures 7 to 9 As shown, specifically, a water spray head 18 is provided on one side of the grinding shell 1 along the first horizontal direction, and the water spray head 18 is used to spray cooling water to the grinding wheel 21 .

[0082] Obviously, the above embodiments are merely examples for the purpose of clear explanation, and are not intended to limit the implementation methods. For those skilled in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the implementation methods here. The obvious changes or modifications derived therefrom are still within the scope of protection of the invention.

Claims

1. A glass substrate grinding device, characterized in that: include: A grinding shell (1) having a through groove (11) formed therethrough along a first horizontal direction, the through groove (11) extending from an outer surface of the grinding shell (1) toward the inside along a second horizontal direction, so that the through groove (11) is connected with the inside of the grinding shell (1), and the through groove (11) is suitable for allowing a single edge of a glass substrate to pass continuously along the first horizontal direction, and the first horizontal direction and the second horizontal direction are perpendicular to each other; A grinding wheel (21), arranged in the grinding shell (1) and driven to rotate by a rotating assembly; A negative pressure interface (12) is arranged on one side of the grinding shell (1) and is used to connect an external device and put the interior of the grinding shell (1) in a negative pressure state; two negative pressure interfaces (12) are arranged, and the two negative pressure interfaces (12) are arranged on two sides of the grinding shell (1) opposite to each other along a first horizontal direction; the negative pressure interface (12) is located on a side of the through groove (11) facing inward along a second horizontal direction; An upper air knife (3) is arranged on the grinding shell (1), and a first air outlet (31) is arranged on a side facing inward along a second horizontal direction, the first air outlet (31) is used to blow air toward a single upper surface of a glass substrate; the first air outlet (31) is arranged from an outer surface of the grinding shell (1) toward an inner side along the second horizontal direction, and the first air outlet (31) is arranged to be inclined downward; the upper air knife (3) comprises a first mounting portion (32) detachably connected to the grinding shell (1), the first mounting portion (32) is arranged on a side surface of the grinding shell (1) along the second horizontal direction, and the first inclined surface (322) is arranged A second inclined surface (13) is provided on the side surface of the grinding shell (1) facing the first mounting portion (32) at a position corresponding to the first inclined surface (322); the second inclined surface (13) extends from the outer surface of the grinding shell (1) toward the inner side along a second horizontal direction; the second inclined surface (13) is arranged to be inclined downward; and the second inclined surface (13) is parallel to the first inclined surface (322); when the upper air knife (3) is connected to the grinding shell (1), the first inclined surface (322) and the second inclined surface (13) are arranged at intervals, and the sandwiched area between the first inclined surface (322) and the second inclined surface (13) forms the first air outlet (31); A lower wind knife (4) is arranged on the grinding shell (1), and is provided with a second air outlet (41) on one side facing inward along a second horizontal direction, the second air outlet (41) being used to blow air toward the single-sided lower surface of the glass substrate; the second air outlet (41) is arranged along the second horizontal direction from the outer surface of the grinding shell (1) toward the inner side, and the second air outlet (41) is arranged to be inclined upward; the lower wind knife (4) comprises a second mounting portion (42) detachably connected to the grinding shell (1), the second mounting portion (42) being provided with a third inclined surface (422) along the second horizontal direction toward the side of the grinding shell (1), the grinding shell (1) being inclined toward the second mounting portion (42 ) is provided with a fourth inclined surface (14) at a position corresponding to the third inclined surface (422) on the side surface of the grinding shell (1), the fourth inclined surface (14) is arranged along the second horizontal direction from the outer surface of the grinding shell (1) toward the inner side, the fourth inclined surface (14) is arranged to be inclined upward, and the fourth inclined surface (14) is parallel to the third inclined surface (422); when the lower air knife (4) is connected to the grinding shell (1), the third inclined surface (422) and the fourth inclined surface (14) are arranged at intervals, and the sandwiched area between the two forms the second air outlet (41); the lower air knife (4) and the upper air knife (3) are arranged symmetrically at the two ends of the through groove (11) along the vertical direction; An upper water knife (5) is located on a side of the upper air knife (3) facing inward along the second horizontal direction, and a first water spray port is provided on the side facing inward along the second horizontal direction, wherein the first water spray port is used to spray water onto the upper surface of the grinding area of ​​the glass substrate; It also includes a water knife (6), the water knife (6) is located on the side of the lower air knife (4) facing inward along the second horizontal direction, and a second water spray port is provided on the side facing inward along the second horizontal direction, the second water spray port is used to spray water onto the lower surface of the grinding area of ​​the glass substrate; The grinding shell (1) is provided with a first mounting hole (15) at a position corresponding to the upper water knife (5); at least one end of the first mounting hole (15) along the first horizontal direction passes through the grinding shell (1); the first mounting hole (15) is connected to the interior of the grinding shell (1) through a first connecting groove (151) on the side facing inward along the second horizontal direction; the upper water knife (5) comprises a first water supply pipe (51) rotatably connected in the first mounting hole (15); one end of the first water supply pipe (51) extends to the outside of the grinding shell (1); the first water supply pipe (51) is connected to a first water spraying portion (52) on the side facing the first connecting groove (151); one end of the first water spraying portion (52) passes through the first connecting groove (151) and extends into the grinding shell (1), and is provided with the first water spraying port; The grinding shell (1) is provided with a second mounting hole (16) at a position corresponding to the water drop knife (6); at least one end of the second mounting hole (16) along the first horizontal direction passes through the grinding shell (1); the second mounting hole (16) is connected to the interior of the grinding shell (1) through a second connecting groove (161) on the side facing inward along the second horizontal direction; the water drop knife (6) comprises a second water supply pipe (61) rotatably connected in the second mounting hole (16); one end of the second water supply pipe (61) extends to the outside of the grinding shell (1); the second water supply pipe (61) is connected to a second water spraying portion (62) on the side facing the second connecting groove (161); one end of the second water spraying portion (62) passes through the second connecting groove (161) and extends into the grinding shell (1), and is provided with the second water spraying port.

2. A glass substrate grinding device according to claim 1, characterized in that: A first indicator (53) is provided at one end of the first water supply pipe (51) extending outside the grinding shell (1); a first scale mark (171) is provided on the outer wall of the grinding shell (1) at a position corresponding to the first indicator (53); And / or, a second indicator (63) is provided at one end of the second water supply pipe (61) extending outside the grinding shell (1); and a second scale mark (172) is provided on the outer wall of the grinding shell (1) at a position corresponding to the second indicator (63).

3. A glass substrate grinding device according to claim 1, characterized in that: The grinding shell (1) is connected to a drainage portion (71) at the middle of the lower end in the vertical direction, and the drainage portion (71) is arranged in a funnel shape; And / or, a water spray head (18) is provided on the grinding shell (1), and the water spray head (18) is used to spray cooling water toward the grinding wheel (21).

4. A glass substrate grinding device according to claim 1, characterized in that: The dimension of the first air outlet (31) along the first horizontal direction is greater than the dimension of the first water spray outlet along the first horizontal direction.

5. The glass substrate grinding device according to claim 1, characterized in that: The rotating assembly comprises a motor (22) arranged vertically at the upper end of the grinding shell (1), wherein an output end of the motor (22) extends into the grinding shell (1) and is connected to the grinding wheel (21); And / or, the outer cover of the grinding shell (1) is provided with a protective cover (7).

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