Glass substrate grinding equipment

Abstract

The invention relates to the technical field of double-sided grinding machining, in particular to glass substrate grinding equipment which comprises a grinding machine body, an upper grinding disc, a sun gear and a gear ring, and the upper grinding disc, the sun gear and the gear ring are assembled on the grinding machine body. An installation block located below the upper grinding disc is assembled on the grinding machine body, a plurality of lower grinding discs are arranged on the installation block in the circumferential direction, each lower grinding disc is provided with a wandering star wheel, the circumferential side wall of each lower grinding disc is connected with a first gear ring capable of being meshed with the gear ring, and the circumferential side wall of each wandering star wheel is connected with a second gear ring capable of being meshed with the sun wheel; the first limiting piece is used for limiting the position of the lower grinding disc; and the second limiting piece is used for limiting the position of the wandering star wheel. The lower grinding disc, the wandering star wheel and the glass base body can be assembled in advance, the lower grinding disc is replaced and the pre-assembled lower grinding disc is installed when the grinding machine body is shut down, the feeding and discharging efficiency is improved, the shut-down time is shortened, and the problem that a glass substrate and the wandering star wheel are difficult to take down is solved.

Description

Technical Field

[0001] This invention relates to the technical field of double-sided grinding processing, and more particularly to a glass substrate grinding device. Background Art

[0002] Glass substrate polishing is a key process in semiconductor and display technologies, primarily used to improve the flatness and surface quality of glass substrates. A double-sided polishing machine is a device that polishes both surfaces of a glass substrate simultaneously.

[0003] Referring to Chinese patent application CN118456284A, published on August 9, 2024, entitled "A Method for Measuring the Rotation Speed ​​of a Workpiece in a Double-Sided Grinding Process," and referring to the appendix of that patent application... Figure 1 The double-sided grinding machine consists of an upper grinding disc, a lower grinding disc, a planetary wheel, a sun gear, and a gear ring. The planetary wheel meshes with the sun gear and the gear ring, causing the planetary wheel to revolve around the sun gear on the lower grinding disc. At the same time, the planetary wheel can rotate around its own central axis, thereby achieving the grinding of the glass substrate.

[0004] Regarding the aforementioned technologies, during the grinding process, wet abrasive is typically added between the upper and lower grinding discs to help reduce the grinding temperature and improve grinding quality. The lower grinding disc usually has channels for the flow of wet abrasive, allowing it to uniformly grind the glass substrate. However, the moisture and chemical components in the wet abrasive may create an adsorption force between the glass substrate and the grinding disc or planetary wheel, or may cause surface tension between them. This can make it difficult to remove the glass substrate and planetary wheel from the lower grinding disc, affecting the feeding efficiency of the device and consequently its grinding efficiency.

[0005] Referring to Chinese patent document CN117921537B, published on September 20, 2024, entitled "A Multi-Station Double-Sided Grinding Machine," the invention includes multiple upper grinding disc mechanisms, a large grinding disc mechanism, and a lower grinding disc mechanism. Multiple lower grinding disc modules of the lower grinding disc mechanism are correspondingly arranged at multiple stations on the large grinding disc. By setting multiple upper grinding disc mechanisms and multiple lower grinding disc modules, when one lower grinding disc module is being loaded or unloaded, the other lower grinding disc modules operate normally.

[0006] Regarding the aforementioned technologies, when unloading one of the lower grinding disc modules, there is still a problem that it is difficult to remove the glass substrate and planetary wheel from the lower grinding disc, which affects the unloading efficiency of the device. If the unloading time of a single lower grinding disc is too long, it may affect the operation progress of the entire device and the grinding time of other lower grinding discs. Summary of the Invention

[0007] In view of this, the present invention provides a glass substrate grinding device, which aims to solve the technical problem in the prior art that the glass substrate and planetary wheel are difficult to remove from the lower grinding disk, thus affecting the feeding efficiency.

[0008] To solve the above-mentioned technical problems, the present invention provides a glass substrate grinding device, which adopts the following technical solution: A glass substrate grinding device includes a grinding machine body and an upper grinding disc, a sun gear, and a gear ring mounted on the grinding machine body; the grinding machine body is equipped with a mounting block located below the upper grinding disc, and a plurality of lower grinding discs are arranged circumferentially on the mounting block, each lower grinding disc is provided with a planetary wheel, a gear ring I that can mesh with the gear ring is connected to the circumferential sidewall of the lower grinding disc, and a gear ring II that can mesh with the sun gear is connected to the circumferential sidewall of the planetary wheel; the mounting block is provided with a limiting member I for limiting the position of the lower grinding discs, and the lower grinding discs are provided with a limiting member II for limiting the position of the planetary wheel.

[0009] By adopting the above technical solution and setting multiple lower grinding discs, the efficiency of feeding and unloading can be effectively improved. The specific operation is as follows: before feeding, the planetary wheel and glass substrate are placed on each lower grinding disc in advance. After the grinding machine stops, the pre-assembled lower grinding discs are quickly assembled onto the mounting block. Similarly, when unloading, the lower grinding discs are removed from the mounting block. This not only improves the feeding and unloading efficiency, but also shortens the downtime, thereby improving the grinding efficiency.

[0010] Regarding the issue of material removal from the upper planetary wheel on a single lower grinding disc, a second gear is provided on the circumferential sidewall of the planetary wheel. By applying force to the second gear, the planetary wheel can be easily removed. After the planetary wheel is removed, the glass substrate can slide to the edge of the lower grinding disc, facilitating its removal. This improvement effectively solves the previous problem of difficulty in removing the planetary wheel and glass substrate due to the influence of adsorption and tension. Furthermore, gear ring one meshes with gear ring two, and gear ring two meshes with the sun gear. Compared to the existing technology where the planetary wheel meshes with both gear ring and sun gear, this facilitates alignment of gear ring one and gear ring, and gear ring two and sun gear during the material handling process, thereby improving the efficiency of material handling.

[0011] The use of multiple lower grinding discs not only improves the flexibility of the device but also allows for individual replacement if one disc fails, facilitating maintenance, cleaning, and inspection, thus enhancing the device's adaptability. Furthermore, the reduced surface area of ​​a single lower grinding disc allows for a smaller amount of wet abrasive to be added, and makes it easier to control the distribution and flow of wet abrasive on the disc, resulting in more uniform distribution and improved grinding performance.

[0012] Optionally, the limiting member includes a plurality of protrusions corresponding to a plurality of grinding discs. The protrusions are fixedly connected to the top surface of the mounting block and slidably inserted into the groove at the bottom of the lower grinding disc.

[0013] By adopting the above technical solution, the design of the protrusion and groove can be quickly and accurately aligned, enabling the lower grinding disc to be installed on the mounting block quickly and accurately, improving assembly efficiency, simplifying the operation process, and facilitating replacement. Due to the high matching degree of the protrusion and groove, installation errors can be reduced. At the same time, it ensures that the lower grinding disc can rotate around its own axis under the action of the toothed ring and the toothed ring, minimizing the possibility of conflict between structures.

[0014] Optionally, the second limiting member includes a positioning pin fixedly connected to the top surface of the lower grinding disc, and the positioning pin is slidably inserted into the positioning groove in the middle of the planetary wheel.

[0015] By adopting the above technical solution, the design of the positioning pin and positioning groove ensures the precise alignment between the planetary wheel and the lower grinding disc, reduces installation errors, and facilitates quick installation and disassembly. In mass production, this disassembly and installation method helps maintain the consistency of each grinding unit and facilitates production.

[0016] Optionally, the grinding machine body is provided with a plurality of feeding pipes arranged circumferentially. The feeding pipes are located on the upper grinding disc and are used to add wet abrasive to the lower grinding disc. The bottom surface of the upper grinding disc is provided with a plurality of feeding channels corresponding to the plurality of feeding pipes. The feeding channels extend radially along the upper grinding disc. The upper grinding disc is provided with a switch for controlling the opening and closing of the bottom port of the feeding pipe.

[0017] By adopting the above technical solution, multiple feeding channels can more accurately control the flow rate of wet abrasive, and avoid the situation of too much or too little wet abrasive as much as possible. Multiple feeding channels can add abrasive to multiple lower grinding discs at the same time, which can improve the addition speed of wet abrasive and reduce the waste of wet abrasive.

[0018] Optionally, the switching component includes a slider that is slidably sleeved on the bottom of the feeding tube. The circumferential sidewall of the bottom of the feeding tube has two through holes 1 that can communicate with the feeding channel. The top of the slider has a vertically extending groove. The circumferential sidewall of the slider has two through holes 2. The two through holes 1 and the two through holes 2 correspond to each other and communicate with each other. A return spring is provided between the bottom wall of the groove and the bottom wall of the feeding tube. The bottom of the slider can abut against the top of the positioning pin. The bottom wall of the groove is connected to a block that is slidably inserted into the inside of the feeding tube. The circumferential sidewall of the top of the block is connected to the inner wall of the bottom of the feeding tube with abutting protrusion ring.

[0019] By adopting the above technical solution, when the slider abuts against the positioning pin, the positioning pin pushes the slider, causing the slider to move upward. Through hole one and through hole two are connected, and wet abrasive enters the feeding channel through the feeding pipe and falls onto the lower grinding disc. This facilitates control over the opening timing of the bottom port of the feeding pipe, improves the automation level of the device, reduces the waste of wet abrasive, and the setting of the block can improve the sealing performance and enhance the stability of the device.

[0020] Optionally, the bottom of the slider and the top of the locating pin are both rounded.

[0021] By adopting the above technical solution and setting the corners to rounded, the wear of the positioning pin and the slider can be reduced, the service life of the device can be extended, stress can be effectively dispersed, stress concentration can be reduced, the risk of structural fracture can be reduced, and the slider can move more smoothly and improve the stability of the movement.

[0022] Optionally, a gap is left between the mounting block and the gear ring, and a gap is left between the mounting block and the sun gear.

[0023] By adopting the above technical solution, it is easy to collect the overflowing wet abrasive, and to avoid damage to the glass substrate during the grinding process due to excessive local wet abrasive. It is also easy to clean the mounting block and the lower grinding disc. The water after cleaning falls down along the gaps and is easy to collect.

[0024] Optionally, a conical collecting plate is connected below the mounting block, with the diameter of the collecting plate gradually increasing from top to bottom, and a collecting box located below the collecting plate is provided on the grinding machine body.

[0025] In summary, the present invention has the following beneficial technical effects: 1. The existing technology involves disassembling the entire lower grinding disc into multiple lower grinding discs arranged circumferentially. This allows for the pre-assembly of planetary wheels and glass substrates onto the lower grinding discs. During loading and unloading, the entire lower grinding disc is removed from the mounting block, and the pre-assembled lower grinding discs are then mounted onto the mounting block, improving loading and unloading efficiency, reducing downtime, and increasing grinding efficiency. After removing the lower grinding discs, the planetary wheels and glass substrates can be removed, solving the previous problem of difficulty in removing planetary wheels and glass substrates. This also improves the flexibility of the device, facilitates maintenance, and makes it easier to control the addition and flow of wet abrasive.

[0026] 2. The design of the bumps and locating pins facilitates quick and accurate alignment, improves assembly efficiency, simplifies the operation process, and facilitates mass production.

[0027] 3. The design of multiple feeding channels facilitates precise control of the flow rate of wet abrasive, minimizing the possibility of excessive or insufficient wet abrasive.

[0028] 4. When the positioning pin abuts against the slider, the slider moves upward, and the wet abrasive in the feed tube flows downward, improving the automation level of the device.

[0029] 5. A gap is left between the mounting block and the sun gear and gear ring to facilitate cleaning of the mounting block and lower grinding disc, and to facilitate the collection of overflowing wet abrasive, making it convenient to use. Attached Figure Description

[0030] Figure 1 Schematic diagram of the overall structure of an embodiment of the present invention; Figure 2 This is a schematic diagram of the structure of the collecting plate and the toothed ring in an embodiment of the present invention; Figure 3 This is a schematic diagram of the structure of the lower grinding disk and the planetary wheel in an embodiment of the present invention; Figure 4 This is a schematic diagram of the structure of the mounting block and the lower grinding disc in an embodiment of the present invention; Figure 5 This is a schematic diagram of the structure of the feeding pipe and the feeding channel in an embodiment of the present invention; Figure 6 for Figure 5 A magnified view of part A in the diagram.

[0031] Explanation of reference numerals in the attached drawings: 1. Grinding machine body; 2. Upper grinding disc; 3. Sun gear; 4. Gear ring; 5. Mounting block; 51. Collecting plate; 52. Collecting box; 6. Lower grinding disc; 61. Gear ring one; 7. Planetary gear; 71. Gear ring two; 8. Limiting component one; 81. Protrusion; 82. Groove; 9. Limiting component two; 91. Positioning pin; 92. Positioning slot; 10. Feeding pipe; 11. Feeding channel; 12. Switch component; 121. Slider; 122. Through hole one; 123. Slide groove; 124. Through hole two; 125. Return spring; 126. Block; 127. Protruding ring. Detailed Implementation

[0032] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of the present invention. All other embodiments obtained by those skilled in the art based on the described embodiments of the present invention are within the scope of protection of the present invention.

[0033] The following is in conjunction with the appendix Figure 1 -Attached Figure 6 The present invention is described in further detail.

[0034] This invention discloses a glass substrate grinding apparatus. (Refer to...) Figures 1 to 6A glass substrate grinding apparatus includes a grinding body 1, a grinding assembly, and a feeding assembly. The grinding body 1 is placed on a horizontal surface. The grinding assembly is mounted on the grinding body 1, and the grinding body 1 is provided with a driving force structure for driving the grinding assembly to operate. The grinding assembly is used to grind the glass substrate, and the feeding assembly is used to add wet abrasive between the upper grinding disc 2 and the lower grinding disc 6.

[0035] Reference Figure 1 , Figure 2 and Figure 3 Specifically, the grinding assembly includes an upper grinding disc 2, a sun gear 3, a gear ring 4, a mounting block 5, a lower grinding disc 6, a planetary gear 7, a first limiting member 8, and a second limiting member 9.

[0036] Reference Figure 1 and Figure 2 The upper grinding disc 2 can move vertically back and forth, and each upper grinding disc 2 can rotate around its own central axis. The mounting block 5 is fixedly connected to the grinding machine body 1. A vertical through slot is opened in the middle of the mounting block 5. The mounting block 5 is sleeved on the sun gear 3 and is located below the gear ring 4. The mounting block 5 can rotate around its own central axis.

[0037] Reference Figure 2 Furthermore, a gap is left between the outer side wall of the mounting block 5 and the gear ring 4, and a gap is left between the inner side wall of the mounting block 5 and the sun gear 3. This arrangement facilitates the collection of wet abrasive that overflows from the mounting block 5 and the lower grinding disc 6, minimizing the possibility of excessive local wet abrasive causing damage to the glass substrate during the grinding process. It also facilitates the cleaning of the mounting block 5 and the lower grinding disc 6, and the water after cleaning falls along the gaps for easy collection.

[0038] Reference Figure 2 Furthermore, a collection plate 51 located below the mounting block 5 is fixedly connected to the grinding machine body 1. The collection plate 51 is conical, and its diameter gradually increases from top to bottom. A collection box 52 is provided below the collection plate 51. This facilitates the collection of wet abrasive and water flowing down from the edge of the mounting block 5, reducing the difficulty of cleaning the device.

[0039] Reference Figure 1 and Figure 3 Multiple lower grinding discs 6 are provided and are detachably connected to the mounting block 5. The multiple lower grinding discs 6 are evenly arranged along the circumference of the mounting block 5. Each lower grinding disc 6 has a toothed ring 61 fixedly connected to its circumferential sidewall, and the toothed ring 61 meshes with the toothed ring 4.

[0040] Reference Figure 2 and Figure 3There are multiple planetary wheels 7, each corresponding to a lower grinding disk 6. The planetary wheels 7 are detachably connected to the lower grinding disks 6. Each planetary wheel 7 has a toothed ring 2 71 fixedly connected to its circumferential sidewall, and the toothed ring 2 71 meshes with the sun gear 3.

[0041] The lower grinding disc 6 is mounted on the mounting block 5, and the planetary wheel 7 is mounted on the lower grinding disc 6. The glass substrate is placed in multiple processing slots on the planetary wheel 7. When the grinding machine body 1 is started, the mounting block 5 rotates. During the rotation, the first gear ring 61 meshes with the gear ring 4, and the second gear ring 71 meshes with the sun gear 3. This causes the lower grinding discs 6 and the planetary wheel 7 to rotate around the central axis of the sun gear 3, while the lower grinding discs 6 and the planetary wheel 7 also rotate around their own central axis to grind the glass substrate.

[0042] Setting up multiple lower grinding discs 6 can effectively improve the efficiency of feeding and unloading. The specific operation is as follows: before feeding, the planetary wheel 7 and the glass substrate are placed on each lower grinding disc 6. After the grinding machine 1 stops, the pre-assembled lower grinding discs 6 are quickly assembled onto the mounting block 5. Similarly, when unloading, the lower grinding discs 6 are removed from the mounting block 5. This not only improves the feeding and unloading efficiency, but also shortens the downtime, thereby improving the grinding efficiency.

[0043] Regarding the issue of material removal from the upper planetary wheel 7 on a single lower grinding disc 6, since gear two is provided on the circumferential sidewall of planetary wheel 7, force can be applied to gear two to easily remove planetary wheel 7. After planetary wheel 7 is removed, the glass substrate can slide to the edge of the lower grinding disc 6, facilitating the removal of the glass substrate. This improvement effectively solves the previous problem of difficulty in removing planetary wheel 7 and glass substrate due to the influence of adsorption force and tension. Furthermore, gear ring one 61 meshes with gear ring 4, and gear ring two 71 meshes with sun gear 3. Compared with the prior art where planetary wheel 7 is meshed with both gear ring 4 and sun gear 3, this facilitates alignment of gear ring one 61 and gear ring 4, and gear ring two 71 and sun gear 3 during the material removal and placement process, thereby improving the efficiency of material removal and placement.

[0044] The use of multiple lower grinding discs 6 not only improves the flexibility of the device, but also allows for individual replacement if one of the lower grinding discs 6 is damaged, facilitating the maintenance, cleaning, and inspection of the device and enhancing its flexibility.

[0045] Reference Figure 3 and Figure 4 Specifically, the limiting member 8 restricts the position of the lower grinding disc 6 relative to the mounting block 5. The limiting member 8 includes multiple protrusions 81, each corresponding to a grinding disc. The protrusions 81 are evenly arranged along the circumference of the mounting block 5, and are fixedly connected to the top surface of the mounting block 5. The protrusions 81 are slidably inserted into the groove 82 at the bottom of the lower grinding disc 6.

[0046] The design of the protrusion 81 and the groove 82 allows for quick and accurate alignment, enabling the lower grinding disc 6 to be installed quickly and accurately on the mounting block 5, improving assembly efficiency, simplifying the operation process, and facilitating replacement. Due to the high matching degree between the protrusion 81 and the groove 82, installation errors can be reduced. At the same time, it ensures that the lower grinding disc 6 can rotate around its own axis under the action of the toothed ring 61 and the toothed ring 4, minimizing the possibility of conflict between structures.

[0047] Reference Figure 3 Specifically, the second limiting member 9 restricts the position of the planetary wheel 7 relative to the lower grinding disk 6. The second limiting member 9 includes a positioning pin 91, which is fixedly connected to the top surface of the lower grinding disk 6 and slidably inserted into the positioning groove 92 in the middle of the planetary wheel 7.

[0048] The design of the positioning pin 91 and the positioning groove 92 ensures precise alignment between the planetary wheel 7 and the lower grinding disc 6, reduces installation errors, and facilitates quick installation and disassembly. In mass production, this disassembly and installation method helps maintain the consistency of each grinding unit and facilitates production.

[0049] Reference Figure 1 , Figure 5 and Figure 6 Specifically, the feeding assembly includes a feeding pipe 10, a feeding channel 11, and a switch 12.

[0050] Reference Figure 1 and Figure 5 Multiple feed pipes 10 are provided, all located above the upper grinding disc 2. The bottom of each feed pipe 10 is located inside the upper grinding disc 2. Wet abrasive is supplied by an external feeding mechanism and fed into the space between the upper grinding disc 2 and the lower grinding disc 6 along the feed pipes 10. The multiple feed pipes 10 are evenly arranged around the circumference of the upper grinding disc 2.

[0051] Reference Figure 5 Multiple feeding channels 11 are provided. The feeding channels 11 are located on the bottom surface of the upper grinding disc 2. The multiple feeding channels 11 are evenly arranged along the circumference of the upper grinding disc 2. The bottom of the feeding pipe 10 is inserted into the middle of the feeding channel 11.

[0052] Multiple feed pipes 10 and feed channels 11 can more precisely control the flow rate of wet abrasive, and avoid the situation of too much or too little wet abrasive as much as possible. Multiple feed pipes 10 and feed channels 11 can add abrasive to multiple lower grinding discs 6 at the same time, which can improve the addition speed of wet abrasive and reduce the waste of wet abrasive.

[0053] The switch 12 is used to control the opening and closing of the bottom port of the feed tube 10. When the bottom port of the feed tube 10 is open, wet abrasive enters the feed channel 11 through the feed tube 10, and then enters the surface of the lower grinding disc 6, thereby participating in the grinding of the glass substrate.

[0054] Furthermore, since the surface area of ​​a single lower grinding disc 6 is reduced, the amount of wet abrasive added when adding wet abrasive to the lower grinding disc 6 can be reduced, and the distribution and flow of wet abrasive on the lower grinding disc 6 can be more easily controlled, so that the wet abrasive is evenly distributed to enhance the grinding effect.

[0055] Reference Figure 6 Specifically, the switch 12 includes a slider 121, a first through hole 122, a slide groove 123, a second through hole 124, a return spring 125, a block 126, and a convex ring 127.

[0056] The slider 121 is slidably sleeved on the bottom of the feed tube 10. Through hole 122 is opened on the circumferential side wall of the bottom of the feed tube 10, and the through hole 122 connects the inside of the feed tube 10 with the feed channel 11. The slide groove 123 is opened on the top of the slider 121 and extends vertically. Through hole 124 is opened on the circumferential side wall of the slider 121, and the through hole 124 connects the feed channel 11 with the slide groove 123. The two through holes 122 and the two through holes 124 correspond one-to-one. When the positions of the through holes 122 and the through holes 124 are corresponding, the feed tube 10 is connected to the feed channel 11 through the through holes 122 and the through holes 124. The return spring 125 is located between the bottom wall of the slide groove 123 and the bottom wall of the feed tube 10. The blocking block 126 is fixedly connected to the bottom wall of the chute 123, and slidably inserted into the inside of the feed pipe 10. Two protruding rings 127 are provided; one protruding ring 127 is connected to the axial side wall at the top of the blocking block 126, and the other protruding ring 127 is connected to the bottom of the inner wall of the feed pipe 10. (Refer to...) Figure 3 and Figure 5 The bottom of slider 121 can abut against the top of positioning pin 91.

[0057] When the positioning pin 91 rotates to correspond with the position of the slider 121, the slider 121 moves upward under the pushing action of the positioning pin 91, and the first through hole 122 and the second through hole 124 are connected, thereby connecting the feed tube 10 and the feed channel 11, and the wet abrasive inside the feed tube 10 flows into the feed channel 11. When the positioning pin 91 separates from the slider 121, the slider 121 moves downward under the action of the return spring 125, the first through hole 122 and the second through hole 124 are separated, and the side wall of the slider 121 closes the feed tube 10 and the feed channel 11. The two convex rings 127 cooperate to limit the downward movement distance of the slider 121 and improve the stability of the device. This structure facilitates the control of the opening timing of the bottom port of the feed tube 10, improves the automation level of the device, and reduces the waste of wet abrasive.

[0058] Furthermore, in other embodiments, the switch 12 may also be a valve that is automatically controlled by an electrical signal or the like.

[0059] Reference Figure 3 and Figure 6 Furthermore, the bottom of the slider 121 and the top of the positioning pin 91 are both rounded.

[0060] By rounding the bottom of the slider 121 and the top of the positioning pin 91, wear between the positioning pin 91 and the slider 121 can be reduced, extending the service life of the device. This can effectively disperse stress, reduce stress concentration, lower the risk of structural breakage, and make the slider 121 move upward more smoothly, improving the stability of the movement.

[0061] The implementation principle of a glass substrate grinding device according to an embodiment of the present invention is as follows: Before feeding, place multiple planetary wheels 7 on each grinding disc in sequence, align the positioning groove 92 and positioning pin 91 in the middle of the planetary wheel 7, and slide the positioning pin 91 into the positioning groove 92. Then, place multiple glass substrates in the multiple slots on the planetary wheel 7 in sequence.

[0062] After the grinding machine 1 stops, remove the multiple lower grinding discs 6 from the mounting block 5. The lower grinding discs 6 can be moved upward to separate from the protrusions 81. Then, quickly assemble the multiple pre-assembled lower grinding discs 6 onto the mounting block 5 in sequence, aligning them with the grooves 82 on the bottom surface of the lower grinding discs 6. The protrusions 81 slide into the grooves 82, thus completing the loading and unloading.

[0063] For the removed lower grinding disc 6, apply force to the gear ring 71, and the planetary wheel 7 moves upward along the axis of the lower grinding disc 6 and separates from the lower grinding disc 6. Then apply force to the glass substrate on the lower grinding disc 6 in sequence, so that the glass substrate slides to the edge of the lower grinding disc 6 and can be removed.

[0064] This invention addresses the problem in existing technologies where glass substrates and planetary wheels 7 are difficult to remove under the influence of adsorption and tension, thereby improving the feeding and unloading efficiency of the device and ultimately enhancing the grinding efficiency.

[0065] During the grinding process, as the upper grinding disc 2 and the mounting block 5 rotate in opposite directions, the slider 121 intermittently abuts against the positioning pin 91. When the slider 121 abuts against the positioning pin 91, under the pushing action of the positioning pin 91, the slider 121 moves upward, and the first through hole 122 connects with the second through hole 124. The wet abrasive in the feed pipe 10 flows down to the feed channel 11 along the two through holes 122 on both sides, and then moves down to fall between the upper grinding disc 2 and the lower grinding disc 6. The wet abrasive flows in the multiple flow channels on the lower grinding disc 6, uniformly grinding the glass substrate. The flow of wet abrasive on the lower grinding disc 6 is well known to those skilled in the art and will not be described in detail here.

[0066] When the device needs to be cleaned, the mounting block 5 and the lower grinding disc 6 are directly rinsed. The rinsed water and wet abrasive fall down along the gaps on both sides of the mounting block 5 onto the collection plate 51, and then flow along the collection plate 51 to the collection box 52 for collection and processing.

[0067] Furthermore, it should be noted that, in the description of this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0068] The above is a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principles of the present invention. These improvements and modifications should also be regarded as within the scope of protection of the present invention.

Claims

1. A glass substrate grinding device, comprising a grinding machine body (1) and an upper grinding disc (2), a sun gear (3) and a ring gear (4) mounted on the grinding machine body (1), characterized in that: The grinding machine body (1) is provided with a mounting block (5) located below the upper grinding disc (2); a plurality of lower grinding discs (6) are arranged circumferentially on the mounting block (5); each lower grinding disc (6) is provided with a planetary wheel (7); a circumferential side wall of the lower grinding disc (6) is connected to a first gear ring (61) capable of meshing with the gear ring (4); and a circumferential side wall of the planetary wheel (7) is connected to a second gear ring (71) capable of meshing with the sun gear (3); The mounting block (5) is provided with a first limiting member (8) for limiting the position of the lower grinding disc (6), and the lower grinding disc (6) is provided with a second limiting member (9) for limiting the position of the planetary wheel (7).

2. A glass substrate grinding device according to claim 1, characterized in that: The first limiting member (8) comprises a plurality of protrusions (81) corresponding one to each of the plurality of grinding discs, the protrusions (81) being fixedly connected to the top surface of the mounting block (5), and the protrusions (81) being slidably inserted into the grooves (82) at the bottom of the lower grinding disc (6).

3. The glass substrate grinding device according to claim 1, characterized in that: The second limiting member (9) comprises a positioning pin (91) fixedly connected to the top surface of the lower grinding disc (6), and the positioning pin (91) is slidably inserted into a positioning groove (92) in the middle of the planetary wheel (7).

4. The glass substrate grinding device according to claim 3, characterized in that: The grinding machine body (1) is provided with a plurality of feed tubes (10) arranged in a circumferential direction. The feed tubes (10) are provided on the upper grinding disc (2). The feed tubes (10) are used to add wet abrasives to the lower grinding disc (6). The bottom surface of the upper grinding disc (2) is provided with a plurality of feed channels (11) corresponding to the plurality of feed tubes (10) one by one. The feed channels (11) extend in the radial direction of the upper grinding disc (2). The upper grinding disc (2) is provided with a switch member (12) for controlling the opening and closing of the bottom port of the feed tube (10).

5. The glass substrate grinding device according to claim 4, characterized in that: The switch member (12) comprises a slider (121) slidably sleeved on the bottom of the discharge tube (10); the circumferential side wall of the bottom of the discharge tube (10) is provided with two through holes (122) that can be communicated with the discharge channel (11); the top of the slider (121) is provided with a vertically extending slide groove (123); the circumferential side wall of the slider (121) is provided with two through holes (124); the two through holes (122) correspond to and are communicated with the two through holes (124); a return spring (125) is provided between the bottom wall of the slide groove (123) and the bottom wall of the discharge tube (10); the bottom of the slider (121) can abut against the top of the positioning pin (91); the bottom wall of the slide groove (123) is connected to a block (126) that is slidably inserted into the inside of the discharge tube (10); the circumferential side wall of the top of the block (126) is connected to a convex ring (127) that abuts against the inner wall of the bottom of the discharge tube (10).

6. The glass substrate grinding device according to claim 5, characterized in that: The bottom of the sliding block (121) and the top of the positioning pin (91) are both configured as rounded corners.

7. The glass substrate grinding device according to claim 1, characterized in that: A gap is left between the mounting block (5) and the gear ring (4), and a gap is left between the mounting block (5) and the sun gear (3).

8. The glass substrate grinding device according to claim 7, characterized in that: A conical collecting plate (51) is connected below the mounting block (5), and the diameter of the collecting plate (51) gradually increases from top to bottom. A collecting box (52) located below the collecting plate (51) is provided on the grinding machine body (1).

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