Diode gluing structure

Abstract

The utility model relates to the technical field of diode gluing, in particular to a diode gluing structure which comprises a gluing assembly used for conducting accurate, stable and continuous gluing on a plurality of diodes at a time, the gluing assembly comprises a containing box installed on the top of a bottom plate and a plurality of glue outlet pipes, and two supporting frames are fixedly connected to the top of the bottom plate. The top of the supporting frame is fixedly connected with two guide rail plates, and the opposite sides of the two guide rail plates are rotationally connected with a first belt and a second belt through belt wheels correspondingly. According to the diode gluing device, through the arrangement of the gluing assembly and the combination of the arrangement box and belt transmission, accurate, stable and continuous gluing on a plurality of diodes at a time is achieved, the gluing efficiency is greatly improved, the production period is shortened, and the diode gluing device is particularly suitable for large-scale production requirements.

Description

TECHNICAL FIELD

[0001] The utility model relates to diode gluing technical field especially relates to a diode gluing structure. BACKGROUND

[0002] Diode is a basic electronic component, usually made of semiconductor material, with unidirectional conductivity, in the production and use process of diode, the connection of diode and pin (or called electrode) is the key part of its function realization, this connection not only needs good electrical contact, but also needs certain mechanical strength and environmental protection, therefore, gluing diode and pin connection is a crucial process step, gluing can provide additional fixing, protection and insulation, ensure that diode will not be loose or fail due to vibration, temperature change or external environment influence in long time use process.

[0003] In the prior art, such as the announcement number for: CN209935115U's "diode production is glued with device", including the base, the base is fixedly arranged with the support column, the support column is provided with the cam that the rotary motor pivot away from the rotary motor one end fixed setting has, this technology although makes diode can automatically complete gluing, standardization operation, is very worth promoting, but the technology has some defects when using: since the technology is glued to diode, adopts single diode and carries out one by one one by one rotation gluing, this mode not only is low in efficiency, cannot satisfy the demand of large-scale production, and due to lack of stable alignment mechanism, diode is easy to appear position deviation in the gluing process, leads to the problem of uneven gluing or not in place, therefore this kind of gluing and not on the problem of smearing not only influences the performance and reliability of diode, simultaneously also increases the waste rate and quality control difficulty problem in production process. UTILITY MODEL CONTENTS

[0004] Therefore, the utility model aims at providing a diode gluing structure to solve the problems of low production efficiency and inaccurate smearing of the existing diode gluing device.

[0005] To achieve the above objectives, this utility model provides a diode coating structure, including a coating assembly for precisely, stably, and continuously coating multiple diodes at once. The coating assembly includes a placement box mounted on the top of a base plate and multiple dispensing tubes. Two support frames are fixedly connected to the top of the base plate, and two guide rails are fixedly connected to the top of the support frames. A first belt and a second belt are rotatably connected to opposite sides of the two guide rails via pulleys. The pulleys of the first belt and the second belt at one end of the guide rails are fixedly connected to each other via shafts. A second motor is fixedly connected to one side of the support frames, and the output end of the second motor is fixedly connected to the pulley of the second belt. The placement box is slidably connected to the top of the first belt and the second belt. The top of the placement box has multiple placement holes equidistantly opened, and the size of the placement holes is adapted to the size of the diodes. The multiple dispensing tubes are located on top of the first belt and the second belt. A cleaning assembly is installed on the top of the base plate for automatically cleaning the nozzles of the dispensing tubes.

[0006] Preferably, the height of the top of the second belt and the first belt is lower than the height of the top of the guide rail plate, and the spacing between the two guide rail plates is adapted to the width of the placement box.

[0007] Preferably, a movable box is installed on the top of the base plate, the top of the movable box is slidably connected to the outside of the guide rail plate, a first cylinder is fixedly connected inside the movable box, a positioning plate is installed on the telescopic end of the first cylinder, the positioning plate is located between the two guide rail plates, a second cylinder is fixedly connected to one side inside the movable box, a baffle is installed on the telescopic end of the second cylinder, the baffle is located between the two guide rail plates, the distance between the baffle and the positioning plate is equal to the length of the placement box, and the movable box is located at the bottom of multiple dispensing tubes.

[0008] Preferably, a third cylinder is fixedly connected to one side of the movable box, a guide plate is installed on the telescopic end of the third cylinder, a connecting frame is fixedly connected to the top of the guide plate, and multiple conical cylinders are fixedly connected inside the connecting frame. The distance between the multiple conical cylinders is equal to the distance between the multiple placement holes. When the placement box is positioned between the baffle and the positioning plate, the positions of the multiple placement holes correspond to the positions of the multiple conical cylinders. The bottom opening of the conical cylinder is flat, and the size of the bottom opening of the conical cylinder is compatible with the size of the top of the diode. The diameter of the top opening of the conical cylinder is larger than the diameter of the dispensing tube.

[0009] Preferably, a guide rail box is fixedly connected to the top of the base plate, a screw is rotatably connected inside the guide rail box, a first motor is fixedly connected to one side of the guide rail box, the output end of the first motor is fixedly connected to one end of the screw through a transmission wheel, and the outside of the screw is threadedly connected to the bottom of the movable box.

[0010] Preferably, a fixed frame is fixedly connected to the top of the base plate, a fixed plate is fixedly connected to the top of the fixed frame, the cleaning assembly includes a movable plate slidably connected inside the fixed plate and multiple rotating wheels rotatably connected to one side of the top of the fixed frame, a fourth belt is rotatably connected to the top of the fixed plate via pulleys, a connecting block is fixedly connected to the outside of the fourth belt, and a movable plate is fixedly connected to one side of the connecting block.

[0011] Preferably, a third motor is fixedly connected to the bottom of one end of the fixed plate, and a third belt is fixedly connected to the output end of the third motor via a pulley. The pulley at one end of the third belt is fixedly connected to the pulley at one end of the fourth belt via a shaft. A track plate is fixedly connected to the top of the fixed plate, and the outside of the track plate is slidably engaged with the bottom of the movable plate.

[0012] Preferably, a positioning plate is fixedly connected to one side of the moving plate, a fourth motor is fixedly connected to one side of the positioning plate, and a fifth belt is rotatably connected to the other side of the positioning plate via a pulley. The output end of the fourth motor passes through the interior of the positioning plate and is fixedly connected to the pulley at one end of the fifth belt. A sliding plate is fixedly connected to the outside of the fifth belt, and multiple glue dispensing tubes are fixedly connected at equal intervals inside the sliding plate. The distance between the multiple glue dispensing tubes is equal to the distance between the multiple placement holes.

[0013] Preferably, a connecting plate is fixedly connected to one side of the top of the fixed frame, and multiple rotating wheels are rotatably connected to one side of the connecting plate via a shaft. Multiple hard brushes are fixedly connected to the outside of the multiple rotating wheels, and the positions of the multiple rotating wheels correspond to the positions of the multiple dispensing tubes.

[0014] Preferably, the rotary wheel is fixedly connected to a plurality of scrapers, which are arranged symmetrically in pairs. The scrapers are triangular in shape and the opposite side is set as a scraper. The distance between each pair of scrapers is equal to the size of the dispensing nozzle.

[0015] The beneficial effects of this utility model are:

[0016] 1. Through the designed glue application assembly, this structure, by combining the placement box with belt drive, achieves precise, stable, and continuous glue application to multiple diodes in one operation. This greatly improves glue application efficiency and shortens the production cycle, making it particularly suitable for large-scale production needs. In use, multiple diodes are first placed inside the placement hole. Then, the first and second belts move the placement box to the bottom of multiple glue dispensing tubes. By moving the glue dispensing tubes downwards, they are precisely aligned with the multiple diodes, thus achieving the effect of applying glue to multiple diodes in one operation. At the same time, the first and second belts are used to transport the placement box, causing the placement box that has completed the diode glue application to move out of the guide plate. Then, a new placement box is placed inside the guide plate and transported again, thus achieving the effect of continuously applying glue to multiple diodes in one operation.

[0017] 2. The design of the moving box, cylinder, baffle, and positioning plate further enhances the stable alignment of the diode before adhesive application, effectively avoiding problems such as misalignment and incomplete application, and improving the accuracy of adhesive application and product quality. When the placement box moves to the top of the moving box, it is first blocked by the positioning plate, at which point the placement box stops moving. At the same time, the baffle will block the other end of the placement box. The placement box is then sandwiched between the baffle and the positioning plate, which enables the diode to be stably coated with adhesive and also facilitates precise adhesive application to the diode.

[0018] 3. The cleaning components enable automatic cleaning of the dispensing tube nozzles, preventing glue residue or blockage and ensuring coating quality and equipment stability. Simultaneously, the fourth belt, third motor, and track plate facilitate automated movement and cleaning of the moving plate and dispensing tubes. When glue residue appears at the nozzle after prolonged use, multiple dispensing tubes are moved, causing the nozzles to move back and forth outside the rotating wheel. This prompts the hard-bristled brush and scraper to automatically clean the glue from the nozzles, avoiding glue blockage and the hassle of manual cleaning. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only for 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 schematic diagram of the overall three-dimensional structure of the present invention;

[0021] Figure 2 This is a three-dimensional structural diagram of the cleaning component of this utility model;

[0022] Figure 3 This utility model Figure 2 A schematic diagram of the structure from another perspective at the top;

[0023] Figure 4 This is a schematic diagram of the connection structure between the movable box and the guide rail plate of this utility model;

[0024] Figure 5 This is a schematic diagram of the conical cylinder and connecting frame structure of this utility model;

[0025] Figure 6 This is an enlarged structural diagram of the hard bristle brush and scraper of this utility model.

[0026] The diagram is marked as follows:

[0027] 1. Base plate; 2. Guide rail box; 3. First motor; 4. Screw; 5. Moving box; 6. First cylinder; 7. Second cylinder; 8. Baffle; 9. Positioning plate; 10. Placement box; 11. Placement hole; 12. Support frame; 13. Second motor; 14. Guide rail plate; 15. First belt; 16. Second belt; 17. Third cylinder; 18. Guide plate; 19. Connecting frame; 20. Conical cylinder; 21. Fixing frame; 22. Fixing plate; 23. Third motor; 24. Third belt; 25. Track plate; 26. Moving plate; 27. Fourth belt; 28. Connecting block; 29. ​​Connecting plate; 30. Alignment plate; 31. Fourth motor; 32. Fifth belt; 33. Slide plate; 34. Glue outlet tube; 35. Rotary wheel; 36. Hard brush; 37. Scraper. Detailed Implementation

[0028] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to specific embodiments.

[0029] It should be noted that, unless otherwise defined, the technical or scientific terms used in this utility model should have the ordinary meaning understood by one of ordinary skill in the art to which this utility model pertains. The terms "first," "second," and similar terms used in this utility model do not indicate any order, quantity, or importance, but are merely used to distinguish different components. Terms such as "comprising" or "including" mean that the element or object preceding the word encompasses the elements or objects listed following the word and their equivalents, without excluding other elements or objects. Terms such as "connected" or "linked" are not limited to physical or mechanical connections, but can include electrical connections, whether direct or indirect. Terms such as "upper," "lower," "left," and "right" are used only to indicate relative positional relationships; when the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0030] Such as this utility modelFigures 1 to 6 The diagram illustrates a diode coating structure, including a coating assembly for precisely, stably, and continuously coating multiple diodes at once. The coating assembly includes a placement box 10 mounted on the top of a base plate 1 and multiple dispensing tubes 34. Two support frames 12 are fixedly connected to the top of the base plate 1, and two guide rails 14 are fixedly connected to the top of the support frames 12. A first belt 15 and a second belt 16 are rotatably connected to opposite sides of the two guide rails 14 via pulleys. The pulleys of the first belt 15 and the second belt 16 at one end of the guide rails 14 are mutually axially fixed. A second motor 13 is fixedly connected to one side of the support frame 12. The output end of the second motor 13 is fixedly connected to the pulley of the second belt 16. A placement box 10 is slidably connected to the top of the first belt 15 and the second belt 16. A plurality of placement holes 11 are equally spaced on the top of the placement box 10. The size of the placement holes 11 is adapted to the size of the diode. A plurality of dispensing tubes 34 are located on the top of the first belt 15 and the second belt 16. A cleaning component is installed on the top of the base plate 1. The cleaning component is used to automatically clean the nozzle of the dispensing tube 34.

[0031] By incorporating a glue-applying assembly, this structure, through the design of the placement box 10 combined with belt drive, achieves precise, stable, and continuous glue application to multiple diodes in a single operation. This significantly improves glue application efficiency, shortens the production cycle, and is particularly suitable for large-scale production needs. In use, multiple diodes are first placed inside the placement hole 11. Then, the first belt 15 and the second belt 16 move the placement box 10 to the bottom of multiple glue dispensing tubes 34. By moving the glue dispensing tubes 34 downwards, they are precisely aligned with the multiple diodes, thus achieving the effect of applying glue to multiple diodes in one operation. Simultaneously, the first belt 15 and the second belt 16 are used to transport the placement box 10, causing the placement box 10 that has completed the diode glue application to move out of the guide plate 14. Then, a new placement box 10 is placed inside the guide plate 14 and transported again, thereby achieving the effect of continuously applying glue to multiple diodes in one operation.

[0032] like Figures 1 to 5 As shown, the height of the top of the second belt 16 and the first belt 15 is lower than the height of the top of the guide plate 14, and the spacing between the two guide plates 14 is adapted to the width of the placement box 10.

[0033] By adjusting the height of the first belt 15 and the second belt 16, the placement box 10 can move stably between the two guide rails 14. When applying adhesive to the diodes, the diodes are first placed inside the multiple placement holes 11, and then the placement box 10 is placed between the two guide rails 14. At this time, the second motor 13 is started, causing the first belt 15 and the second belt 16 to rotate. The first belt 15 and the second belt 16 will then drive the placement box 10 to move. When the placement box 10 moves to the top of the moving box 5, it is limited by the baffle 8 and the positioning plate 9. Then, by moving the multiple glue dispensing tubes 34 to align with the tops of the multiple diodes, the glue dispensing tubes 34 apply adhesive to the diodes, thus completing the glue application of multiple diodes in one go. After the diodes are glued, the positioning plate 9 is released, and the placement box 10, carrying multiple diodes, moves out of the interior of the guide rails 14 by the first belt 15 and the second belt 16, thus completing the transport of the diodes and facilitating the continuous glue application of the diodes in the future.

[0034] like Figures 1 to 5 As shown, a movable box 5 is installed on the top of the base plate 1. The top of the movable box 5 is slidably connected to the outside of the guide rail plate 14. A first cylinder 6 is fixedly connected inside the movable box 5. A positioning plate 9 is installed on the telescopic end of the first cylinder 6. The positioning plate 9 is located between the two guide rail plates 14. A second cylinder 7 is fixedly connected to one side inside the movable box 5. A baffle 8 is installed on the telescopic end of the second cylinder 7. The baffle 8 is located between the two guide rail plates 14. The distance between the baffle 8 and the positioning plate 9 is equal to the length of the placement box 10. The movable box 5 is located at the bottom of multiple dispensing tubes 34.

[0035] The design of the movable box 5, cylinder, baffle 8, and positioning plate 9 further enhances the stable alignment of the diode before adhesive application, effectively avoiding problems such as misalignment and incomplete application, and improving the accuracy and quality of adhesive application. When the placement box 10 moves to the top of the movable box 5, the first cylinder 6 is activated first, causing the top of the positioning plate 9 to extend between the two guide rails 14. At this time, one end of the placement box 10 will be blocked by the positioning plate 9, thereby preventing the placement box 10 from moving. Then, the second cylinder 7 is activated, causing the top of the baffle 8 to extend between the two guide rails 14. At the same time, the baffle 8 will block the other end of the placement box 10. At this time, the placement box 10 is sandwiched between the baffle 8 and the positioning plate 9, thereby stabilizing and fixing the position of the placement box 10, which facilitates the stable application of adhesive to the diode by multiple dispensing tubes 34, thus achieving a stable and accurate adhesive application effect.

[0036] like Figure 4 and Figure 5As shown, a third cylinder 17 is fixedly connected to one side of the movable box 5. A guide plate 18 is installed on the telescopic end of the third cylinder 17. A connecting frame 19 is fixedly connected to the top of the guide plate 18. Multiple conical cylinders 20 are fixedly connected inside the connecting frame 19. The distance between the multiple conical cylinders 20 is equal to the distance between the multiple placement holes 11. When the placement box 10 is stopped between the baffle 8 and the positioning plate 9, the positions of the multiple placement holes 11 correspond to the positions of the multiple conical cylinders 20. The bottom opening of the conical cylinder 20 is flat, and the specifications of the bottom opening of the conical cylinder 20 are compatible with the specifications of the top of the diode. The diameter of the top opening of the conical cylinder 20 is larger than the diameter of the dispensing tube 34.

[0037] With multiple conical cylinders 20 in place, when the position of the placement box 10 is stabilized between the baffle 8 and the positioning plate 9, the third cylinder 17 is activated, causing the guide plate 18 to move downward with the connecting frame 19, thereby causing the bottom of the conical cylinder 20 to fit over the top of multiple diodes. At this time, by setting the shape of the conical cylinder 20 to be conical, when multiple glue dispensing tubes 34 move to the inside of the top of the multiple conical cylinders 20, the glue can be accurately applied to the diode and the pin connection, thereby avoiding the problem of glue being applied off-center, and also avoiding the problem of excess glue being splashed out.

[0038] like Figure 1 and Figure 4 As shown, a guide rail box 2 is fixedly connected to the top of the base plate 1. A screw 4 is rotatably connected inside the guide rail box 2. A first motor 3 is fixedly connected to one side of the guide rail box 2. The output end of the first motor 3 is fixedly connected to one end of the screw 4 through a transmission wheel. The outside of the screw 4 is threadedly connected to the bottom of the movable box 5.

[0039] The screw 4 facilitates the maintenance of the internal mechanism of the movable box 5 and makes it easier to move the placement box 10. When the first belt 15 and the second belt 16 wear out after long-term use, the first motor 3 can be started to make the screw 4 rotate. At this time, the screw will be used to push the movable box 5 out of the guide rail plate 14 through the baffle 8 or the positioning plate 9, thus avoiding jamming and facilitating the maintenance of the internal mechanism of the movable box 5.

[0040] like Figure 1 , Figure 2 , Figure 3 and Figure 6As shown, a fixed frame 21 is fixedly connected to the top of the base plate 1, and a fixed plate 22 is fixedly connected to the top of the fixed frame 21. The cleaning assembly includes a movable plate 26 slidably connected inside the fixed plate 22 and multiple rotating wheels 35 rotatably connected to one side of the top of the fixed frame 21. A fourth belt 27 is rotatably connected to the top of the fixed plate 22 via pulleys. A connecting block 28 is fixedly connected to the outside of the fourth belt 27. The movable plate 26 is fixedly connected to one side of the connecting block 28. A third motor 23 is fixedly connected to the bottom of one end of the fixed plate 22. A third belt 24 is fixedly connected to the output end of the third motor 23 via pulleys. The pulley at one end of the third belt 24 is connected to the pulley at one end of the fourth belt 27. The pulley is fixedly connected by a shaft. The top of the fixed plate 22 is fixedly connected to the track plate 25. The outside of the track plate 25 is slidably engaged with the bottom of the movable plate 26. The side of the movable plate 26 is fixedly connected to the alignment plate 30. The side of the alignment plate 30 is fixedly connected to the fourth motor 31. The other side of the alignment plate 30 is rotatably connected to the fifth belt 32 through a pulley. The output end of the fourth motor 31 passes through the inside of the alignment plate 30 and is fixedly connected to the pulley at one end of the fifth belt 32. The outside of the fifth belt 32 is fixedly connected to the slide plate 33. The inside of the slide plate 33 is fixedly connected to multiple glue dispensing tubes 34 at equal intervals. The distance between the multiple glue dispensing tubes 34 is equal to the distance between the multiple placement holes 11.

[0041] The cleaning components enable automatic cleaning of the nozzle of the dispensing tube 34, preventing glue residue or blockage and ensuring coating quality and equipment stability. Simultaneously, the fourth belt 27, third motor 23, and track plate 25 facilitate the automated movement and cleaning of the moving plate 26 and dispensing tube 34. When glue becomes sticky at the nozzle of the dispensing tube 34 after prolonged use, moving multiple dispensing tubes 34 causes the nozzle to move back and forth outside the rotating wheel 35. This prompts the stiff brush 36 and scraper 37 to automatically clean the glue at the nozzle of the dispensing tube 34, thus avoiding glue blockage and the hassle of manual cleaning. To address this issue, the fourth belt 27 and the fifth belt 32 are used. When applying adhesive to the diodes and when the placement box 10 moves to the top of the moving box 5, the third motor 23 is activated, causing the third belt 24 to drive the fourth belt 27 to rotate. This causes the connecting block 28 to move with the moving plate 26, thereby moving the multiple adhesive dispensing tubes 34 to the top of the multiple diodes. Then, the fourth motor 31 is activated, causing the fifth belt 32 to move with the sliding plate 33, which in turn moves the sliding plate 33 with the multiple adhesive dispensing tubes 34 downwards. This ensures that the multiple adhesive dispensing tubes 34 are precisely aligned with the top of the multiple diodes, facilitating the application of adhesive to the diodes.

[0042] like Figure 1 , Figure 2 , Figure 3 and Figure 6As shown, a connecting plate 29 is fixedly connected to one side of the top of the fixed frame 21. Multiple rotating wheels 35 are rotatably connected to one side of the connecting plate 29 via a shaft. Multiple hard brushes 36 are fixedly connected to the outside of the multiple rotating wheels 35 respectively. The positions of the multiple rotating wheels 35 correspond to the positions of the multiple glue dispensing tubes 34. Multiple scrapers 37 are fixedly connected to the outside of the rotating wheels 35. The multiple scrapers 37 are arranged symmetrically in pairs. The scrapers 37 are triangular in shape and the opposite side is set as a scraper. The distance between the multiple scrapers 37 is equal to the size of the nozzle of the glue dispensing tube 34.

[0043] With the help of the stiff brushes 36 and scrapers 37, when the glue dispensing tube 34 becomes sticky after prolonged use, the height of the sliding plate 33 is adjusted to align the glue dispensing tube 34 with the stiff brushes 36. Then, the moving plate 26 is activated, moving the glue dispensing tube 34 through the interior of the stiff brushes 36, thus cleaning the exterior of the glue dispensing tube 34. Simultaneously, the scrapers 37 are positioned to correspond to the nozzle of the glue dispensing tube 34. When the glue dispensing tube 34 moves through the interior of the stiff brushes 36, the nozzle of the glue dispensing tube 34 passes between the two scrapers 37, causing the scrapers 37 to scrape off the glue on the exterior of the nozzle of the glue dispensing tube 34. This prevents the nozzle of the glue dispensing tube 34 from becoming clogged and avoids the need for manual cleaning later.

[0044] Those skilled in the art should understand that the discussion of any of the above embodiments is merely exemplary and is not intended to imply that the scope of the present invention (including the claims) is limited to these examples; within the framework of the present invention, the technical features of the above embodiments or different embodiments can also be combined, the steps can be implemented in any order, and there are many other variations of the different aspects of the present invention as described above, which are not provided in the details for the sake of brevity.

[0045] This utility model is intended to cover all such substitutions, modifications, and variations that fall within the broad scope of the appended claims. Therefore, any omissions, modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A diode coating structure, characterized by, The application relates to a glue applying assembly for precisely, stably and continuously applying glue to multiple diodes at a time, which comprises a placing box (10) arranged on the top of a bottom plate (1) and multiple glue outlet pipes (34), the top of the bottom plate (1) is fixedly connected with two support frames (12), the top of each support frame (12) is fixedly connected with two guide rail plates (14), the opposite sides of the two guide rail plates (14) are rotatably connected with a first belt (15) and a second belt (16) through belt wheels, the belt wheels at one end of the guide rail plates (14) are fixedly connected with each other through shafts, one side of each support frame (12) is fixedly connected with a second motor (13), the output end of the second motor (13) is fixedly connected with the belt wheel of the second belt (16), the top of the first belt (15) and the second belt (16) is slidably connected with the placing box (10), the top of the placing box (10) is equidistantly provided with multiple placing holes (11), the specification size of the placing holes (11) is matched with the specification size of diodes, and the positions of the multiple glue outlet pipes (34) are located on the top of the first belt (15) and the second belt (16). The top of the bottom plate (1) is provided with a cleaning assembly for automatically cleaning the mouths of the glue outlet pipes (34).

2. The diode coating structure of claim 1, wherein The heights of the top of the second belt (16) and the first belt (15) are lower than the height of the top of the guide rail plates (14), and the spacing between the two guide rail plates (14) is matched with the width of the placing box (10).

3. The diode coating structure of claim 1, wherein The top of the bottom plate (1) is provided with a moving box (5), the top of the moving box (5) is slidably connected with the outside of the guide rail plates (14), the inside of the moving box (5) is fixedly connected with a first air cylinder (6), the telescopic end of the first air cylinder (6) is provided with a positioning plate (9), the positioning plate (9) is located between the two guide rail plates (14), one side of the inside of the moving box (5) is fixedly connected with a second air cylinder (7), the telescopic end of the second air cylinder (7) is provided with a baffle (8), the baffle (8) is located between the two guide rail plates (14), the spacing between the baffle (8) and the positioning plate (9) is equal to the length of the placing box (10), and the position of the moving box (5) is located at the bottom of the multiple glue outlet pipes (34).

4. The diode coating structure of claim 3, wherein One side of the mobile box (5) is fixedly connected with a third cylinder (17), the telescopic end of the third cylinder (17) is provided with a guide plate (18), the top of the guide plate (18) is fixedly connected with a connecting frame (19), the inside of the connecting frame (19) is fixedly connected with a plurality of tapered barrels (20), the spacing between the plurality of tapered barrels (20) is equal to the spacing between the plurality of placing holes (11), when the placing box (10) stays between the baffle (8) and the positioning plate (9), the positions of the plurality of placing holes (11) correspond to the positions of the plurality of tapered barrels (20) respectively, the bottom opening of the tapered barrel (20) is flat, the size of the bottom opening of the tapered barrel (20) is matched with the size of the top of the diode, and the diameter of the top opening of the tapered barrel (20) is greater than the diameter of the glue outlet pipe (34).

5. The diode coating structure of claim 4, wherein The top of the bottom plate (1) is fixedly connected with a guide rail box (2), the inside of the guide rail box (2) is rotatably connected with a screw rod (4), one side of the guide rail box (2) is fixedly connected with a first motor (3), the output end of the first motor (3) is fixedly connected with one end of the screw rod (4) through a transmission wheel, and the outside of the screw rod (4) is threadedly connected with the bottom of the mobile box (5).

6. The diode coating structure of claim 1, wherein The top of the bottom plate (1) is fixedly connected with a fixed frame (21), the top of the fixed frame (21) is fixedly connected with a fixed plate (22), the cleaning assembly comprises a moving plate (26) slidably connected to the inside of the fixed plate (22) and a plurality of rotating wheels (35) rotatably connected to one side of the top of the fixed frame (21), the top of the fixed plate (22) is rotatably connected with a fourth belt (27) through a belt wheel, the outside of the fourth belt (27) is fixedly connected with a connecting block (28), and one side of the connecting block (28) is fixedly connected with the moving plate (26).

7. The diode coating structure of claim 6, wherein The bottom of one end of the fixed plate (22) is fixedly connected with a third motor (23), the output end of the third motor (23) is fixedly connected with a third belt (24) through a belt wheel, one end of the third belt (24) is fixedly connected with the belt wheel of one end of the fourth belt (27) through a shaft, and the top of the fixed plate (22) is fixedly connected with a track plate (25), and the outside of the track plate (25) is slidably connected with the bottom of the moving plate (26).

8. The diode coating structure of claim 7, wherein, One side of the moving plate (26) is fixedly connected with a positioning plate (30), one side of the positioning plate (30) is fixedly connected with a fourth motor (31), the other side of the positioning plate (30) is rotatably connected with a fifth belt (32) through a belt wheel, the output end of the fourth motor (31) penetrates the inside of the positioning plate (30) and is fixedly connected with the belt wheel of one end of the fifth belt (32), the outside of the fifth belt (32) is fixedly connected with a sliding plate (33), and the inside of the sliding plate (33) is fixedly connected with a plurality of glue outlet pipes (34) at equal intervals. One side of the moving plate (26) is fixedly connected with a positioning plate (30), one side of the positioning plate (30) is fixedly connected with a fourth motor (31), the other side of the positioning plate (30) is rotatably connected with a fifth belt (32) through a belt wheel, the output end of the fourth motor (31) penetrates the inside of the positioning plate (30) and is fixedly connected with the belt wheel of one end of the fifth belt (32), the outside of the fifth belt (32) is fixedly connected with a sliding plate (33), and the inside of the sliding plate (33) is fixedly connected with a plurality of glue outlet pipes (34) at equal intervals.

9. The diode coating structure of claim 8, wherein, The side of the top of the fixed frame (21) is fixedly connected with a connecting plate (29), one side of the connecting plate (29) is rotatably connected with a plurality of rotating wheels (35), the outer parts of the plurality of rotating wheels (35) are respectively fixedly connected with a plurality of hard hair brushes (36), and the positions of the plurality of rotating wheels (35) correspond to the positions of the plurality of glue outlet pipes (34).

10. The diode coating structure of claim 9, wherein The outer part of the rotating wheel (35) is fixedly connected with a plurality of scrapers (37), and the plurality of scrapers (37) are arranged in pairs of symmetry, the shape of the scraper (37) is triangular, and the opposite side is provided as a scraper shape, the spacing between the plurality of scrapers (37) is equal to the size of the mouth of the glue outlet pipe (34).

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