Conductive silver adhesive grinding device for LED production

Abstract

The utility model discloses a conductive silver adhesive grinding device for LED production. The conductive silver adhesive grinding device comprises a grinding box, the feeding pipe is connected above the outer side of the grinding box; the discharging pipe is connected to the middle part below the grinding box; the valve is arranged on the discharging pipe; the grinding disc is arranged in the grinding box and is positioned above the lower end part of the feeding pipe; the sieve plate is arranged in the grinding box and is positioned below the lower end part of the feeding pipe; a hollow plate is connected to the position, corresponding to the feeding pipe, of the upper portion of the grinding box. The material collecting barrel is made to correspond to the opening in the lower portion of the hopper again, after corresponding, part of the conductive silver adhesive raw materials in the hopper fall into the material collecting barrel, the material collecting barrel is filled with the conductive silver adhesive raw materials, next grinding is prepared, the weight of the conductive silver adhesive raw materials added into the feeding pipe can be effectively controlled, the weight of the conductive silver adhesive raw materials added every time is made to be consistent, and the grinding efficiency is improved. And the charging work can be repeated only by adding the conductive silver adhesive raw material into the hopper, so that the operation is simple and convenient, and the operation steps of workers are reduced.

Description

Technical Field

[0001] This utility model belongs to the technical field of grinding equipment, specifically, it relates to a conductive silver paste grinding device for LED production. Background Technology

[0002] Conductive silver paste used in LED production is a high-performance adhesive specifically designed for LED component encapsulation and connection. It contains highly conductive silver microparticles that can form a reliable conductive path after curing, enabling electrical connection between the LED chip and the circuit board. It has excellent conductivity, bonding strength, and temperature resistance, making it an indispensable key material in LED manufacturing.

[0003] In order to increase the surface area of ​​silver powder, improve its dispersion uniformity in the resin matrix, and ensure that the cured conductive silver paste has excellent conductivity and bonding strength, the conductive silver paste raw material needs to be ground.

[0004] Patent CN210434654U discloses a grinding device for producing conductive silver paste that can uniformly process the material. This device effectively ensures the cleanliness of the inside of the grinding equipment. The dust cover can be adjusted by rotating the shaft and the support frame. However, during use, if too much conductive silver paste is added to the feeding tube, the feeding tube will become clogged. If there is too little conductive silver paste, the operator needs to continuously add the conductive silver paste to the feeding tube, which is cumbersome. Furthermore, the operator cannot accurately control the weight added during feeding, which also leads to clogging. Utility Model Content

[0005] To solve the technical problem of cumbersome operation and inability to control the added weight when adding conductive silver paste raw materials.

[0006] To solve the technical problem of sieve plate clogging, this utility model provides a conductive silver paste grinding device for LED production.

[0007] The objective of this utility model can be achieved through the following technical solutions:

[0008] A grinding device for conductive silver paste used in LED production includes a grinding box; a feed pipe connected to the upper outer side of the grinding box; a discharge pipe connected to the middle lower part of the grinding box; a valve disposed on the discharge pipe; a grinding disc disposed inside the grinding box above the lower end of the feed pipe; a sieve plate disposed inside the grinding box below the lower end of the feed pipe; a hollow plate connected to the upper part of the grinding box corresponding to the position of the feed pipe; a hopper connected to the middle of the upper surface of the hollow plate; symmetrically arranged grooves opened in the middle of the hollow plate; sliding plates slidably connected in the grooves; and a collecting cylinder connected to the lower surface of the sliding plates corresponding to the lower opening of the hopper. A protective plate is connected to the lower surface of the hollow plate. The protective plate consists of a U-shaped vertical plate and a bottom plate. The lower surface of the collecting cylinder is in contact with the upper surface of the bottom plate. A feeding port is opened at the end of the bottom plate away from the slide plate. A triangular block is connected to the side of the collecting cylinder near the grinding box. The triangular block is a right triangle. A squeezing roller is set below the triangular block. Both ends of the squeezing roller are rotatably connected to L-shaped connecting arms. The end of the connecting arm away from the squeezing roller is connected to the upper surface of the screen plate. A first connecting block is connected to the end of the slide plate away from the grinding box, and a second connecting block is connected to the end of the hollow plate away from the grinding box. A spring is connected between the first connecting block and the second connecting block.

[0009] Preferably, a motor is installed at the top center of the grinding box, and a rotating shaft is connected to the output end of the motor. The rotating shaft passes through the top of the grinding box and is connected to the grinding disc.

[0010] Preferably, the diameter of the opening at the bottom of the hopper, the diameter of the collecting cylinder, the diameter of the feeding port, and the diameter of the feed pipe are the same; the length of the sliding plate and the length of the bottom plate are three times the diameter of the collecting cylinder; the short side length of the triangular block is equal to twice the diameter of the collecting cylinder; and the distance between the grinding disc and the screen plate is equal to the short side length of the triangular block.

[0011] Preferably, the bottom of the grinding box is arc-shaped, the sieve plate is bowl-shaped, and the shape of the grinding disc corresponds to the sieve plate.

[0012] Preferably, the grinding box has symmetrically arranged movable grooves at the positions corresponding to the connecting arms, and the connecting arms are slidably connected in the movable grooves.

[0013] Preferably, a baffle is connected to the side of the screen plate at the position corresponding to the lower end of the discharge pipe, and a guide plate is connected below the screen plate.

[0014] Preferably, symmetrically arranged cylinders are provided below the sieve plate at a position away from the center of the grinding box, and the cylinders are connected to the guide plate.

[0015] Preferably, a first bevel gear is connected to the outer side above the rotating shaft, a second bevel gear meshes with the outer side of the first bevel gear, a first rotating rod is connected to the side of the second bevel gear away from the rotating shaft, a second rotating rod is rotatably connected inside the grinding box at the position below the guide plate, an eccentric wheel is connected to the middle of the second rotating rod, a first sprocket is connected to the end of the first rotating rod away from the first bevel gear, and the end of the second rotating rod near the first sprocket passes through the grinding box and is connected to the second sprocket, and chains mesh with the outer sides of both the first sprocket and the second sprocket.

[0016] The beneficial effects of this utility model are:

[0017] The screen plate is raised by a cylinder, the distance equal to the shorter side length of the triangular block. During this rise, the screen plate drives the extrusion rollers to press the triangular block. This pressing pushes the collecting cylinder and sliding plate towards the feeding port. As the sliding plate moves, it compresses a spring, causing the spring to contract and store restoring force. Once the collecting cylinder has moved a distance equal to its diameter, the sliding plate blocks the opening at the bottom of the hopper. As the collecting cylinder continues to move until it reaches a distance equal to the shorter side length of the triangular block, it gradually aligns with the feeding port. The conductive silver paste material inside the collecting cylinder falls into the feed pipe through the feeding port. Throughout this process, the sliding plate remains blocking the opening at the bottom of the hopper to prevent the conductive material inside the hopper from entering. The silver paste material falls into the collecting cylinder or drops out of the hopper. After the conductive silver paste material is ground, the cylinder will drive the screen plate to descend a distance equal to the short side length of the triangular block. As the screen plate descends, the extrusion roller will descend synchronously. After the extrusion roller descends, the triangular block loses its extrusion force, and under the action of the spring's restoring force, it will drive the collecting cylinder to reset, so that the collecting cylinder is aligned with the opening below the hopper. After alignment, some of the conductive silver paste material in the hopper falls into the collecting cylinder, filling the collecting cylinder and preparing it for the next grinding. This can effectively control the weight of conductive silver paste material added to the feed pipe, ensuring that the weight of conductive silver paste material added each time is consistent. Moreover, the feeding work can be repeated simply by adding conductive silver paste material into the hopper, making the operation simple and convenient and reducing the number of steps for operators.

[0018] The motor is started to rotate the rotating shaft, which in turn drives the first bevel gear to rotate. The first bevel gear then drives the second bevel gear to rotate, which in turn drives the first rotating rod to rotate. With the cooperation of the first sprocket, chain, and second sprocket, the second rotating rod rotates synchronously with the eccentric block. When the screen plate is located below the lower end of the feed pipe, the eccentric block will strike the screen plate to prevent the ground conductive silver paste material from sticking to the screen plate, thus avoiding screen plate blockage and not affecting the normal operation of the screen plate. Attached Figure Description

[0019] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 This is a cross-sectional view of a conductive silver paste grinding device for LED production according to this utility model;

[0021] Figure 2 This is a perspective view of a conductive silver paste grinding device for LED production according to this utility model;

[0022] Figure 3 This is a perspective view of the spring in a conductive silver paste grinding device for LED production according to this utility model.

[0023] Figure 4 This is a cross-sectional view of the spring in a conductive silver paste grinding device for LED production according to this utility model.

[0024] Figure 5 This is a perspective view of the first bevel gear in a conductive silver paste grinding device for LED production according to this utility model.

[0025] The attached diagram lists the components represented by each number as follows:

[0026] 1. Grinding box; 2. Grinding disc; 3. Hollow plate; 4. Triangular block; 5. First bevel gear;

[0027] 11. Feed pipe; 12. Discharge pipe; 13. Valve;

[0028] 21. Motor; 211. Rotating shaft; 212. Mounting bracket; 22. Screen plate; 23. Baffle; 24. Guide plate; 25. Cylinder; 26. Support partition;

[0029] 301. Hopper; 31. Chute; 311. Slide plate; 312. Collecting cylinder; 32. Guard plate; 321. Feed port;

[0030] 41. Extrusion roller; 42. Connecting arm; 43. Movable groove; 44. First connecting block; 45. Second connecting block; 46. Spring;

[0031] 51. Second bevel gear; 52. First rotating rod; 53. Fixed block; 54. First sprocket; 55. Chain; 56. Second sprocket; 57. Second rotating rod; 58. Eccentric wheel. Detailed Implementation

[0032] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0033] Please see Figure 1 - Figure 5 As shown, a conductive silver paste grinding device for LED production includes a grinding box 1, which is used to assist in grinding conductive silver paste raw materials.

[0034] The bottom of the grinding box 1 is arc-shaped. This design makes it easy to concentrate the ground conductive silver paste material at the discharge pipe 12.

[0035] A feed pipe 11 is connected to the upper outer side of the grinding box 1 for adding conductive silver paste raw material.

[0036] A discharge pipe 12 is connected to the lower center of the grinding box 1 to discharge the ground conductive silver paste raw material.

[0037] A valve 13 is installed on the discharge pipe 12 to control the closing of the discharge pipe 12.

[0038] A grinding disc 2 is installed inside the grinding box 1, located above the lower end of the feed pipe 11, for grinding the conductive silver paste raw material.

[0039] A motor 21 is installed in the middle of the upper part of the grinding box 1. The output end of the motor 21 is connected to a rotating shaft 211. The rotating shaft 211 passes through the upper part of the grinding box 1 and is connected to the grinding disc 2. The motor 21 is used to drive the rotating shaft 211 to rotate, so that the grinding disc 2 can rotate.

[0040] A mounting bracket 212 is connected to the upper surface of the grinding box 1 at the position corresponding to the motor 21. The motor 21 is mounted on the mounting bracket 212, which is used to support the motor 21.

[0041] Inside the grinding box 1, a sieve plate 22 is provided below the lower end of the feed pipe 11. The sieve plate 22, together with the grinding disc 2, can grind the conductive silver paste raw material, and the ground conductive silver paste raw material can fall below the grinding box 1 through the sieve plate 22.

[0042] The sieve plate 22 is bowl-shaped, and the grinding disc 2 is shaped to correspond to the sieve plate 22. With this arrangement, the conductive silver paste material can be prevented from falling out of the sieve plate 22 when grinding the conductive silver paste material.

[0043] A baffle 23 is connected to the side of the sieve plate 22 at the position corresponding to the lower end of the discharge pipe 12. It is used to block the conductive silver paste material in the feed pipe 11 and prevent the conductive silver paste material from falling directly into the grinding box 1.

[0044] A guide plate 24 is connected below the sieve plate 22 to guide the ground conductive silver paste raw material to the middle of the grinding box 1.

[0045] A symmetrically arranged cylinder 25 is provided below the screen plate 22, away from the middle of the grinding box 1. The cylinder 25 is connected to the guide plate 24 and is used to raise and lower the screen plate 22.

[0046] Inside the grinding box 1, there are symmetrically arranged support partitions 26 connected to the position corresponding to the cylinder 25. The cylinder 25 is installed inside the support partitions 26. The support partitions 26 are used to support the cylinder 25 and at the same time to isolate the ground conductive silver paste material from the cylinder 25.

[0047] A first bevel gear 5 is connected to the outer side of the rotating shaft 211. A second bevel gear 51 meshes with the outer side of the first bevel gear 5. A first rotating rod 52 is connected to the side of the second bevel gear 51 away from the rotating shaft 211. A second rotating rod 57 is rotatably connected inside the grinding box 1 at the position below the guide plate 24. An eccentric wheel 58 is connected to the middle of the second rotating rod 57 for striking the sieve plate 22 to prevent the ground conductive silver paste material from sticking to the sieve plate 22.

[0048] A fixing block 53 is connected to the upper surface of the grinding box 1 at the position corresponding to the first rotating rod 52. The first rotating rod 52 is rotatably connected in the fixing block 53. The fixing block 53 is used to support the first rotating rod 52 and limit the position of the first rotating rod 52.

[0049] The end of the first rotating rod 52 away from the first bevel gear 5 is connected to the first sprocket 54. The end of the second rotating rod 57 near the first sprocket 54 passes through the grinding box 1 and is connected to the second sprocket 56. Both the first sprocket 54 and the second sprocket 56 are meshed with chains 55 on their outer sides.

[0050] In practical use, the rotating shaft 211 is rotated by starting the motor 21. The rotation of the rotating shaft 211 drives the first bevel gear 5 to rotate, which in turn drives the second bevel gear 51 to rotate. The rotation of the second bevel gear 51 drives the first rotating rod 52 to rotate. With the cooperation of the first sprocket 54, the chain 55 and the second sprocket 56, the second rotating rod 57 rotates synchronously with the eccentric block. When the screen plate 22 is located below the lower end of the feed pipe 11, the eccentric block will strike the screen plate 22 to prevent the ground conductive silver paste material from sticking to the screen plate 22. This can prevent the screen plate 22 from being blocked and will not affect the normal operation of the screen plate 22.

[0051] A hollow plate 3 is connected above the grinding box 1 at the position corresponding to the feed pipe 11. A hopper 301 is connected to the middle of the upper surface of the hollow plate 3 for placing conductive silver paste raw materials.

[0052] The hollow plate 3 has symmetrically arranged grooves 31 in the middle. A sliding plate 311 is slidably connected in the grooves 31. A collecting cylinder 312 is connected to the lower surface of the sliding plate 311 at the position corresponding to the opening below the hopper 301. The collecting cylinder 312 is used to collect part of the conductive silver paste raw material in the hopper 301.

[0053] A protective plate 32 is connected to the lower surface of the hollow plate 3. The protective plate 32 consists of a U-shaped vertical plate and a bottom plate, which is used to surround the collecting cylinder 312 to prevent the conductive silver paste material from falling out of the collecting cylinder 312 before the collecting cylinder 312 reaches the position of the feeding port 321.

[0054] The lower surface of the collecting cylinder 312 is attached to the upper surface of the base plate, which can block the conductive silver paste material inside the collecting cylinder 312 and prevent the conductive silver paste material from falling out.

[0055] A feeding port 321 is provided at the end of the base plate away from the slide plate 311, which is used to add conductive silver paste raw material into the feed pipe 11.

[0056] The diameters of the opening at the bottom of the hopper 301, the collecting cylinder 312, the feeding port 321, and the feeding pipe 11 are all the same. The length of the sliding plate 311 and the length of the base plate are three times the diameter of the collecting cylinder 312. With this arrangement, it can be ensured that after the collecting cylinder 312 moves, before and after the collecting cylinder 312 aligns with the feeding port 321, the sliding plate 311 can block the opening at the bottom of the hopper 301. This prevents the collecting cylinder 312 from adding conductive silver paste to the feeding pipe 11 at the same time as the collecting cylinder 312 adds conductive silver paste to the collecting cylinder 312. This can effectively control the weight of the conductive silver paste added to the feeding pipe 11, ensuring that the weight of the conductive silver paste added each time is consistent.

[0057] A triangular block 4 is connected to the side of the collecting cylinder 312 near the grinding box 1. The triangular block 4 is a right triangle, and the length of the short side of the triangular block 4 is equal to twice the diameter of the collecting cylinder 312. With this arrangement, after the extrusion roller 41 extrudes the triangular block 4, the collecting cylinder 312 can be aligned with the feeding port 321.

[0058] A compression roller 41 is provided below the triangular block 4 for compressing the triangular block 4.

[0059] Both ends of the extrusion roller 41 are rotatably connected to L-shaped connecting arms 42. The end of the connecting arm 42 away from the extrusion roller 41 is connected to the upper surface of the screen plate 22. With this arrangement, when the screen plate 22 rises, it can drive the extrusion roller 41 to rise and extrude the triangular block 4.

[0060] The grinding box 1 has symmetrically arranged movable grooves 43 at the position corresponding to the connecting arm 42, and the connecting arm 42 is slidably connected in the movable grooves 43.

[0061] The distance between the grinding disc 2 and the sieve plate 22 is equal to the length of the short side of the triangular block 4. With this setting, after the cylinder 25 rises a distance equal to the length of the short side of the triangular block 4, the sieve plate 22 will correspond to the grinding disc 2, and the sieve plate 22 will push the triangular block 4 so that the collecting cylinder 312 corresponds exactly to the feeding port 321.

[0062] The end of the slide plate 311 away from the grinding box 1 is connected to a first connecting block 44, and the end of the hollow plate 3 away from the grinding box 1 is connected to a second connecting block 45. A spring 46 is connected between the first connecting block 44 and the second connecting block 45. The spring 46 is used to reset the collecting cylinder 312.

[0063] In practical use, the cylinder 25 is activated to raise the screen plate 22 by a distance equal to the short side length of the triangular block 4. During the upward movement of the screen plate 22, the extrusion roller 41 will extrude the triangular block 4. After being extruded, the triangular block 4 will push the collecting cylinder 312 and the sliding plate 311, causing them to move towards the feeding port 321. During the movement, the sliding plate 311 will compress the spring 46. The spring 46 will contract and store restoring force. After the collecting cylinder 312 has moved a distance equal to its diameter, the sliding plate 311 will block the opening below the hopper 301. As the collecting cylinder 312 continues to move until the distance is equal to the short side length of the triangular block 4, the collecting cylinder 312 will gradually align with the feeding port 321. The conductive silver paste material in the collecting cylinder 312 will fall into the feed pipe 11 through the feeding port 321. Throughout this process, the sliding plate 311 will always block the opening below the hopper 301. The square opening prevents the conductive silver paste material in the hopper 301 from falling into the collecting cylinder 312 or falling out of the hopper 301. After the conductive silver paste material is ground, the cylinder 25 will drive the screen plate 22 to descend by a distance equal to the short side length of the triangular block 4. As the screen plate 22 descends, the extrusion roller 41 will descend synchronously. After the extrusion roller 41 descends, the triangular block 4 loses its extrusion. Under the action of the spring 46, the collecting cylinder 312 will be reset, so that the collecting cylinder 312 is aligned with the opening below the hopper 301. After alignment, some of the conductive silver paste material in the hopper 301 will fall into the collecting cylinder 312, filling the collecting cylinder 312 for the next grinding. This can effectively control the weight of the conductive silver paste material added to the feed pipe 11, so that the weight of the conductive silver paste material added each time is consistent. Moreover, the feeding work can be repeated simply by adding the conductive silver paste material into the hopper 301. The operation is simple and convenient, reducing the number of operation steps for the operator.

[0064] Working principle:

[0065] Conductive silver paste material is added to hopper 301. Some of the conductive silver paste material falls into collecting cylinder 312. After collecting cylinder 312 is full of conductive silver paste material, cylinder 25 is activated to raise screen plate 22 and extrusion roller 41. Extrusion roller 41 causes conductive silver paste material in collecting cylinder 312 to fall into feed pipe 11. After screen plate 22 rises, the lower end of feed pipe 11 is blocked by baffle 23, and conductive silver paste material is left in feed pipe 11. After conductive silver paste falls into feed pipe 11, cylinder 25 is activated to lower screen plate 22 and extrusion roller 41. After screen plate 22 falls, baffle 23 no longer blocks the lower end of feed pipe 11, and conductive silver paste material in feed pipe 11 falls into screen plate 22. Inside plate 22, and the collecting cylinder 312 will reset and align with the lower opening of hopper 301 again, some of the conductive silver paste material in hopper 301 will be added back into collecting cylinder 312. At this time, motor 21 is started to rotate grinding disc 2, and the above operation of screen plate 22 and extrusion roller 41 rising and falling is repeated to grind the conductive silver paste material. The ground conductive silver paste material will fall to the bottom of grinding box 1 through screen plate 22. When motor 21 rotates and screen plate 22 is below the lower end of feed pipe 11, the rotation of eccentric wheel 58 will knock on screen plate 22 to avoid blockage. After the grinding of conductive silver paste material is completed, the ground conductive silver paste material can be collected by opening valve 13.

[0066] In the description of this specification, the references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this utility model. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0067] The above description is merely an example and illustration of the structure of this utility model. Those skilled in the art can make various modifications or additions to the specific embodiments described, or use similar methods to replace them, as long as they do not deviate from the structure of the utility model or exceed the scope defined in the claims, all of which should fall within the protection scope of this utility model.

Claims

1. A LED production conductive silver adhesive grinding device, comprising a grinding box (1); a feeding pipe (11) connected above the outer side of the grinding box (1); a discharging pipe (12) connected below the middle of the grinding box (1); a valve (13) arranged on the discharging pipe (12); a grinding disc (2) arranged inside the grinding box (1) above the lower end of the feeding pipe (11); a sieve plate (22) arranged inside the grinding box (1) below the lower end of the feeding pipe (11); characterized in that a hollow plate (3) connected above the grinding box (1) corresponding to the position of the feeding pipe (11), a hopper (301) connected to the middle of the upper surface of the hollow plate (3), symmetrically arranged chute (31) is opened in the middle of the hollow plate (3), the sliding plate (311) is slidably connected in the chute (31), the collecting cylinder (312) is connected to the lower surface of the sliding plate (311) corresponding to the position of the opening below the hopper (301); the lower surface of the hollow plate (3) is connected with a guard plate (32), the guard plate (32) is composed of a U-shaped vertical plate and a bottom plate, an adding opening (321) is opened at the end of the bottom plate away from the sliding plate (311); the collecting cylinder (312) is connected with a triangular block (4) at the position close to the grinding box (1), the triangular block (4) is a right triangle, an extrusion roller (41) is arranged below the triangular block (4), L-shaped connecting arms (42) are rotatably connected to both ends of the extrusion roller (41), and one end of the connecting arm (42) away from the extrusion roller (41) is connected to the upper surface of the sieve plate (22); one end of the sliding plate (311) away from the grinding box (1) is connected with a first connecting block (44), one end of the hollow plate (3) away from the grinding box (1) is connected with a second connecting block (45), and a spring (46) is connected between the first connecting block (44) and the second connecting block (45).

2. The LED production conductive silver adhesive grinding device according to claim 1, characterized in that: The lower surface of the collecting cylinder (312) is attached to the upper surface of the bottom plate. 3.The LED conductive silver adhesive grinding device according to claim 2, characterized in that: A motor (21) is arranged above the middle of the grinding box (1), a rotating shaft (211) is connected to the output end of the motor (21), and the rotating shaft (211) penetrates through the upper part of the grinding box (1) and is connected with the grinding disc (2).

4. The LED production conductive silver adhesive grinding device according to claim 3, characterized in that: The diameter of the opening below the hopper (301), the diameter of the collecting cylinder (312), the diameter of the adding opening (321) and the diameter of the feeding pipe (11) are the same, the length of the sliding plate (311) and the length of the bottom plate are three times the diameter of the collecting cylinder (312), the length of the short side of the triangular block (4) is equal to twice the diameter of the collecting cylinder (312), and the distance between the grinding disc (2) and the sieve plate (22) is equal to the length of the short side of the triangular block (4).

5. The LED production conductive silver adhesive grinding device according to claim 4, characterized in that: The lower part of the grinding box (1) is arc-shaped, the sieve plate (22) is bowl-shaped, and the shape of the grinding disc (2) corresponds to the sieve plate (22). 6.The LED conductive silver adhesive grinding device according to claim 5, characterized in that: The grinding box (1) is provided with symmetrically arranged movable grooves (43) corresponding to the positions of the connecting arms (42), and the connecting arms (42) are slidably connected in the movable grooves (43). 7.The LED conductive silver adhesive grinding device according to claim 6, characterized in that: A baffle (23) is connected to the side of the sieve plate (22) corresponding to the lower end of the discharging pipe (12), and a guide plate (24) is connected below the sieve plate (22). 8.The LED conductive silver adhesive grinding device according to claim 7, characterized in that: Symmetrically arranged air cylinders (25) are arranged below the sieve plate (22) and away from the middle of the grinding box (1), and the air cylinders (25) are connected with the guide plates (24). 9.The LED conductive silver adhesive grinding device according to claim 8, characterized in that: Second rotating rods (57) are rotatably connected to positions corresponding to the lower part of the guide plates (24) in the grinding box (1), and the second rotating rods (57) are connected with eccentric wheels (58) at the middle part. 10.The LED conductive silver adhesive grinding device according to claim 9, characterized in that: A first bevel gear (5) is connected to the outer side of the upper part of the rotating shaft (211), a second bevel gear (51) is engaged with the outer side of the first bevel gear (5), a first rotating rod (52) is connected to the side of the second bevel gear (51) away from the rotating shaft (211), a first sprocket (54) is connected to the end of the first rotating rod (52) away from the first bevel gear (5), a second sprocket (56) is connected to the end of the second rotating rod (57) close to the first sprocket (54) through the grinding box (1), and the outer sides of the first sprocket (54) and the second sprocket (56) are engaged with a chain (55).

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