An environmentally friendly water-based h-class low-resistance tape processing glass fiber substrate coating device and operating method

Abstract

The application discloses an environment-friendly water-based H-grade low-resistance tape processing glass fiber substrate coating equipment and an operating method thereof. The equipment comprises a conveying table and a rack connected to the conveying table. The rack is connected with a glue coating mechanism for substrate glue coating. The glue coating mechanism comprises a liquid storage tank, a cover plate, a glue outlet plate and a plurality of glue outlets. One side of the conveying table is connected with a protection box. The protection box is connected with a glue scraping mechanism for scraping glue inside the plurality of glue outlets. The glue scraping mechanism comprises a plurality of scraping plates and a second motor. The second motor is used for driving the plurality of scraping plates to rotate synchronously. The top of the cover plate is provided with a pressing groove matched with an L-shaped pressing plate. The application can avoid the invasion of external dust and impurities, make the protection box have a good glue storage environment, realize positioning of the glue outlets, improve coating quality, make the inside of the protection box in a constant temperature state, make glue in a molten state, facilitate discharge from a glue discharge pipe and realize full utilization of the glue.

Description

Technical Field

[0001] This invention relates to the field of low-resistance band processing technology, specifically to an environmentally friendly water-based H-grade low-resistance band processing equipment and operating method for coating glass fiber substrates. Background Technology

[0002] Acetylene black is a common material for low-resistance tapes, and graphite is also sometimes used. The main function of low-resistance tapes is as a conductive base material for anti-corona paint. Fiberglass substrate is one of the components of low-resistance tapes. It is a high-performance inorganic non-metallic material with many varieties. Its advantages include good insulation, strong heat resistance, good corrosion resistance, and high mechanical strength. In the processing of low-resistance tapes, fiberglass substrate coating equipment is required to improve the mechanical strength of the low-resistance tape.

[0003] After a period of operation, the dispensing nozzle of the coating equipment needs to be cleaned. Usually, this is done by having the operator stop the equipment at irregular intervals, disassemble the dispensing plate, and clean it bit by bit. This cleaning method is inefficient and very inconvenient, increasing the labor intensity of the operators. Secondly, normal cleaning cannot completely remove the glue from the dispensing nozzle, which can easily lead to glue residue inside the nozzle. If too much residual glue accumulates, it will affect the dispensing speed and cause some pollution, thus affecting product quality. Summary of the Invention

[0004] The purpose of this invention is to provide an environmentally friendly, water-based, H-grade low-resistance fiberglass substrate coating equipment and operating method. This equipment and method prevent the intrusion of external dust and impurities, provides a good adhesive storage environment within the protective box, and also enables precise positioning of the adhesive outlet, improving coating quality. Furthermore, it maintains a constant temperature inside the protective box, keeping the adhesive in a molten state for easy discharge from the adhesive outlet pipe, thus achieving full utilization of the adhesive and solving the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: an environmentally friendly water-based H-grade low-resistance fiberglass substrate coating equipment, comprising a conveyor table and a frame connected to the conveyor table, wherein the frame is connected to a coating mechanism for coating the substrate, the coating mechanism comprising a liquid storage tank, a cover plate, a dispensing plate, and multiple dispensing ports, wherein the dispensing end of the liquid storage tank is connected to the dispensing plate, the dispensing plate is connected to the bottom of the cover plate, the multiple dispensing ports are connected to the dispensing plate, a protective box is connected to one side of the conveyor table, the protective box is connected to a scraping mechanism for scraping glue inside the multiple dispensing ports, the scraping mechanism comprising multiple scrapers and a second motor, the second motor being used to drive the multiple scrapers to rotate synchronously, a control switch for controlling the opening and closing of the second motor is connected to one side of the protective box, and a connecting mechanism for securely connecting the cover plate to the protective box is connected to the protective box, the connecting mechanism comprising two L-shaped pressure plates and a first motor, the first motor being used to drive the two L-shaped pressure plates to move closer or further apart, and a pressure groove matching the L-shaped pressure plates is provided on the top of the cover plate;

[0006] When the cover plate is connected to the top of the protective box, the scraper is inserted into the corresponding glue outlet, the L-shaped pressure plate is pressed against the pressure groove, and the L-shaped pressure plate is connected to the control switch, the motor is turned on, and multiple scrapers rotate synchronously.

[0007] Preferably, the glue application mechanism further includes a glue pump and a glue delivery hose. The glue pump is connected to the liquid storage tank, and the output end of the glue pump is connected to one end of the glue delivery hose. The other end of the glue delivery hose is connected to the cover plate and is connected to the glue outlet plate.

[0008] Preferably, the frame is connected to a robotic arm, and the end of the robotic arm is connected to the cover plate.

[0009] Preferably, the scraping mechanism further includes multiple rotating shafts, multiple toothed discs one and multiple toothed discs two. The two ends of the rotating shafts are connected to the scraper and the toothed discs one, and the rotating shafts are rotatably connected to the protective box in a sealed manner. The toothed discs two are meshed with two adjacent toothed discs one. The toothed discs two are connected to the bottom of the protective box through bearings. The power output end of the motor two is connected to the toothed discs one.

[0010] Preferably, the scraper includes a main board, two side plates, an inner cavity, multiple springs, and partitions. The side plates are inserted into both sides of the scraper and are slidably connected to the inner cavity. The inner cavity is located inside the main board, and the partitions are connected to the center of the inner cavity. The two ends of the springs are connected to the side plates and partitions.

[0011] Preferably, the top of the motherboard and side panel is provided with a guide surface, and the two guide surfaces are aligned.

[0012] Preferably, the connecting mechanism further includes two guide posts, two springs, an L-shaped plate, a connecting shaft, two elongated plates, a connecting frame, and a cam. The guide posts are fixed to the protective box and pass through the L-shaped pressure plate. The springs are fitted onto the guide posts, and both ends of the springs are connected to the ends of the L-shaped pressure plate and the guide posts. The two L-shaped pressure plates are respectively connected to the L-shaped plate and the connecting shaft. The cam is rotatably connected to the cover plate. Both ends of the elongated plate are rotatably connected to the connecting shaft and the cam. Both ends of the other elongated plate are rotatably connected to the L-shaped plate and the cam. The power output end of the motor is connected to the cam, and the motor is fixed to the connecting frame. The connecting frame is connected to the back of the protective box.

[0013] Preferably, the protective box has an opening at the top and a bottom surface at the bottom of the interior, the bottom surface being inclined, and a glue drain pipe connected to one side of the protective box, the glue drain pipe being connected to a valve.

[0014] Preferably, an electric heating plate is connected to the inside of the protective box, and the electric heating plate is electrically connected to a control switch.

[0015] Operating method of an environmentally friendly water-based H-class low-resistance fiberglass substrate coating equipment: including the following steps:

[0016] Step 1: The robotic arm places the cover plate on top of the conveyor table. The glue pump delivers the glue from the storage tank to the glue dispensing plate through the glue delivery hose, and the glue flows out from multiple glue outlets onto the substrate surface to complete the glue application. After the application is completed, the robotic arm connects the cover plate to the top of the protective box, so that the glue dispensing plate is inserted into the protective box and the scraper is inserted into the corresponding glue outlet.

[0017] Step 2: The motor drives the cam to rotate, which means the cam applies a pulling force to the two elongated plates simultaneously, causing the two L-shaped pressure plates to move closer to each other, so that the L-shaped pressure plates are pressed tightly against the corresponding pressure grooves, improving the tightness of the connection between the cover plate and the protective box, and preventing the intrusion of external impurities.

[0018] Step 3: Press the L-shaped pressure plate against the control switch. The electric heating plate and motor 2 will start working simultaneously. The electric heating plate will bring the inside of the protective box to a high temperature. Motor 2 will drive multiple toothed discs to rotate synchronously, which will drive multiple scrapers to rotate synchronously. This will scrape off the glue adhering to the inner wall of the glue outlet, thereby quickly removing residual glue from the glue outlet, improving coating accuracy and product quality. The glue will be temporarily stored in the protective box and then discharged from the glue discharge pipe for easy reuse.

[0019] Compared with the prior art, the beneficial effects of the present invention are as follows: The present invention is equipped with a protective box, a glue scraping mechanism, and a connecting mechanism. The glue scraping mechanism includes multiple scrapers, a second motor, multiple rotating shafts, multiple first gear discs, and multiple second gear discs. The connecting mechanism includes two L-shaped pressure plates, a first motor, two guide pillars, two first springs, an L-shaped plate, a connecting shaft, two elongated plates, a connecting frame, and a cam. After the substrate is coated, the robotic arm inserts the glue dispensing plate into the protective box. The cover plate is connected to the top of the protective box, and the scraper is inserted into the corresponding glue dispensing port. Then, the first motor drives the cam to rotate, simultaneously applying tension to the two elongated plates, which can bring the two L-shaped pressure plates closer to each other. When the L-shaped pressure plates are pressed tightly... During the pressing process, the control switch is turned on, activating motor two to improve the tightness of the connection between the cover plate and the protective box, preventing the intrusion of external dust and impurities, and providing a good glue storage environment for the protective box. It also positions the glue outlet, ensuring the outer side of the scraper fits against the inner side of the outlet for optimal glue application. Motor two drives gear disc one to rotate, which in turn drives multiple scrapers to quickly remove residual glue from the outlet, facilitating the next operation and improving coating quality. Simultaneously, the electric heating plate is activated, maintaining a constant temperature inside the protective box and keeping the glue in a molten state for easy discharge from the glue outlet pipe. This ensures full utilization of the glue, avoids waste, and offers flexible and convenient operation with high practicality. Attached Figure Description

[0020] Figure 1 This is a perspective view of the present invention;

[0021] Figure 2 for Figure 1 Enlarged view of point A in the middle;

[0022] Figure 3 This is a schematic diagram of the connection structure between the protective box and the conveyor table of the present invention;

[0023] Figure 4 This is a schematic diagram of the back structure of the protective box of the present invention;

[0024] Figure 5 This is a schematic diagram of the bottom structure of the protective box of the present invention;

[0025] Figure 6 This is a schematic diagram of the internal structure of the protective box of the present invention;

[0026] Figure 7 This is a schematic diagram of the connection structure between the scraper and the glue outlet of the present invention;

[0027] Figure 8 This is a schematic diagram of the scraper structure of the present invention.

[0028] In the diagram: 1. Conveyor table; 2. Frame; 3. Liquid storage tank; 4. Glue delivery hose; 5. Protective box; 6. Cover plate; 7. Robotic arm; 8. Fixing frame; 9. Long oval plate; 10. L-shaped plate; 11. Guide column; 12. Spring 1; 13. L-shaped pressure plate; 14. Pressure surface; 15. Pressure groove; 16. Inclined surface; 17. Control switch; 18. Connecting shaft; 19. Glue discharge hose; 20. Valve; 21. Connecting frame; 22. Cam; 23. Motor 1; 24. Motor 2; 25. Gear disc 1; 26. Gear disc 2; 27. Glue discharge plate; 28. Glue discharge port; 29. ​​Rotating shaft; 30. Bottom surface; 31. Scraper; 32. Main board; 33. Inner cavity; 34. Partition plate; 35. Side plate; 36. Spring 2. Detailed Implementation

[0029] 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 embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0030] Please see Figures 1 to 8This invention provides an environmentally friendly, water-based, H-grade low-resistance fiberglass substrate coating device, including a conveyor table 1 and a frame 2 connected to the conveyor table 1. The frame 2 is connected to a coating mechanism for coating the substrate. The coating mechanism includes a liquid storage tank 3, a cover plate 6, a dispensing plate 27, and multiple dispensing ports 28. The dispensing end of the liquid storage tank 3 is connected to the dispensing plate 27, which is connected to the bottom of the cover plate 6. The multiple dispensing ports 28 are connected to the dispensing plate 27. In use, a robotic arm 7 places the cover plate 6 on the conveyor table 1, so that the multiple dispensing plates 27 face downwards, and the coating is applied by a pull roller (existing device, shown in the figure). (and shown) The substrate is pulled and moved on the surface of the conveyor belt (existing device, shown in the figure) of the conveyor table 1. When the substrate moves to the bottom of the glue dispensing plate 27 during the movement, the glue pump delivers the glue in the storage tank 3 to the glue dispensing plate 27 through the glue delivery hose 4, and flows out onto the surface of the substrate through multiple glue dispensing ports 28 that are evenly distributed, so as to apply glue. When the substrate moves and the gel on it passes through the scraper, the scraper scrapes and coats the gel on the substrate with a uniform thickness. The scraper is fixed to the conveyor table 1 and there is a certain distance between it and the conveyor belt. A protective box 5 is connected to one side of the conveyor table 1. The protective box 5 is connected to a scraping mechanism for scraping glue inside multiple glue outlets 28. The scraping mechanism includes multiple scrapers 31 and a second motor 24. The second motor 24 drives the multiple scrapers 31 to rotate synchronously. A control switch 17 is connected to one side of the protective box 5 to control the opening and closing of the second motor 24. When the control switch 17 is pressed, the second motor 24 is in the open state and can work normally for 3-5 minutes before automatically stopping. Alternatively, when the control switch 17 is released, the second motor 24 stops directly. The protective box 5 is also connected to a connecting mechanism for securely connecting the cover plate 6 to the protective box 5. The connecting mechanism includes two L-shaped pressure plates 13 and a first motor 23. The first motor 23 drives the two L-shaped pressure plates 13 to move closer or further apart. The top of the cover plate 6 is provided with a pressure groove 15 that matches the L-shaped pressure plates 13.

[0031] After the substrate coating is completed, the robotic arm 7 inserts the dispensing plate 27 into the protective box 5. The cover plate 6 is connected to the top of the protective box 5, and the scraper 31 is inserted into the corresponding dispensing port 28. Then, the motor 1 23 drives the cam 22 to rotate, applying tension to the two elongated plates 9 simultaneously, which brings the two L-shaped pressure plates 13 closer together. When the L-shaped pressure plates 13 are pressed tightly against the pressure groove 15, the control switch 17 is turned on, causing the motor 24 to start working, improving the tightness of the connection between the cover plate 6 and the protective box 5, preventing the intrusion of external dust and impurities, and giving the protective box 5 a [missing information - likely a feature or function]. A good glue storage environment also enables the positioning of the glue outlet 28, ensuring that the outer side of the scraper 31 fits against the inner side of the glue outlet 28, thus guaranteeing the glue scraping effect. The motor 24 drives the gear disc 25 to rotate, which in turn drives multiple scrapers 31 to rotate, quickly removing residual glue from the glue outlet 28, facilitating the next operation and improving the coating quality. At the same time, the electric heating plate is also turned on, keeping the inside of the protective box 5 at a constant temperature, keeping the glue in a molten state, which is convenient for discharge from the glue discharge pipe 19, achieving full utilization of the glue, avoiding waste, and making the operation flexible and convenient.

[0032] The glue application mechanism also includes a glue pump and a glue delivery hose 4. The glue pump is connected to the liquid storage tank 3, and the output end of the glue pump is connected to one end of the glue delivery hose 4. The other end of the glue delivery hose 4 is connected to the cover plate 6 and is connected to the glue outlet plate 27. The liquid storage tank 3 is fixed to the top of the frame 2.

[0033] The frame 2 is connected to a robotic arm 7, and the end of the robotic arm 7 is connected to the cover plate 6.

[0034] The scraping mechanism also includes multiple rotating shafts 29, multiple gear discs 25, and multiple gear discs 26. The two ends of the rotating shafts 29 are connected to the scraper 31 and the gear discs 25, and the rotating shafts 29 are rotatably connected to the protective box 5 in a sealed manner. The gear discs 26 are meshed with two adjacent gear discs 25. The gear discs 26 are connected to the bottom of the protective box 5 through bearings. The power output end of the motor 24 is connected to the gear discs 25, and the motor 24 is fixed to the fixed frame 8 connected to the bottom of the protective box 5. When the motor 24 drives the middle gear disc 25 to rotate, it can synchronously drive the gear discs 26 located on both sides of the gear disc 25 to rotate. The rotation of the gear discs 26 drives the gear discs 25 located on the side to rotate, so that the three rotating shafts 29 can rotate synchronously, so that the three scrapers 31 can rotate synchronously, and the rotation speed is consistent. The gear transmission is smooth, the transmission ratio is accurate, the operation is reliable, and the efficiency is high.

[0035] When the scraper 31 is inserted into the glue outlet 28, the top of the scraper 31 is located inside the glue outlet 27, which can ensure the scraping area of ​​the glue outlet 28 and achieve comprehensive cleaning.

[0036] The scraper 31 includes a main board 32, two side plates 35, an inner cavity 33, multiple springs 36, and a partition 34. The side plates 35 are inserted into both sides of the scraper 31 and are slidably connected to the inner cavity 33 to improve the stability of the side plates 35's movement. The inner cavity 33 is located within the main board 32, and the partition 34 is connected to the center of the inner cavity 33. The two ends of the springs 36 are connected to the side plates 35 and the partition 34. When the scraper 31 is inserted into the glue outlet 28, the glue outlet 28 applies pressure to the two side plates 35, causing the two side plates 35 to move closer together. The springs 36 are gradually compressed, and one side of the side plate 35 presses against the inside of the glue outlet 28. The applied force ensures the scraping effect and is applicable to glue outlets 28 with different inner diameters, making it highly versatile. When the scraper 31 is pulled out of the glue outlet 28, the compressed springs 36 drive the side plates 35 back to their original positions.

[0037] The top of the main board 32 and the side plate 35 are provided with guide surfaces. The two guide surfaces are aligned and are smooth to reduce the friction between them and the glue outlet 28.

[0038] The connecting mechanism also includes two guide posts 11, two springs 12, an L-shaped plate 10, a connecting shaft 18, two elongated plates 9, a connecting frame 21, and a cam 22. The guide posts 11 are fixed to the protective box 5 and pass through the L-shaped pressure plate 13, which can improve the stability of the reciprocating movement of the L-shaped pressure plate 13 and play a good guiding role. That is, the L-shaped pressure plate 13 can accurately align with the corresponding pressure groove 15 to avoid misalignment. The springs 12 are sleeved on the guide posts 11, and the two ends of the springs 12 are... The L-shaped pressure plate 13 is connected to the end of the guide post 11. The two L-shaped pressure plates 13 are respectively connected to the L-shaped plate 10 and the connecting shaft 18. The cam 22 is rotatably connected to the cover plate 6. The two ends of the long cylindrical plate 9 are rotatably connected to the connecting shaft 18 and the cam 22. The two ends of the other long cylindrical plate 9 are rotatably connected to the L-shaped plate 10 and the cam 22. The power output end of the motor 23 is connected to the cam 22, and the motor 23 is fixed to the connecting frame 21. The connecting frame 21 is connected to the back of the protective box 5. The end of the L-shaped pressure plate 13 is provided with a pressure surface 14, which matches the inclined surface 16 provided in the pressure groove 15. When the pressure surface 14 is pressed against the inclined surface 16, that is, the cover plate 6 is pressed against the protective box 5, which can improve the stability of the connection between the cover plate 6 and the protective box 5. A sealing gasket is provided at the bottom edge of the cover plate 6, which can improve the sealing of the connection and prevent the intrusion of external impurities.

[0039] The protective box 5 has an opening at the top, and the bottom of the protective box 5 is provided with a bottom surface 30. The bottom surface 30 is an inclined surface, that is, the two ends of the bottom surface 30 are a high position and a low position, respectively. The adhesive flows from the high position to the low position and is discharged from the adhesive drain pipe 19, which reduces the amount of adhesive residue inside the protective box 5. The adhesive drain pipe 19 is connected to one side of the protective box 5, and the adhesive drain pipe 19 is connected to a valve 20. Opening the valve 20 allows the adhesive to be discharged smoothly from the adhesive drain pipe 19.

[0040] An electric heating plate is connected to the inside of the protective box 5. The electric heating plate is electrically connected to the control switch 17. When the control switch 17 is pressed, the electric heating plate is turned on and heats the inside of the protective box 5, thereby heating the glue outlet 28. This is beneficial for scraping off the glue and ensures that the glue inside the protective box 5 is in a molten state, making it easy to discharge from the glue discharge pipe 19.

[0041] Operating method of an environmentally friendly water-based H-class low-resistance fiberglass substrate coating equipment: including the following steps:

[0042] Step 1: The robotic arm 7 places the cover plate 6 on top of the conveyor table 1. The glue pump delivers the glue from the storage tank 3 through the glue delivery hose 4 to the glue dispensing plate 27, and then flows out from multiple glue dispensing ports 28 onto the substrate surface to complete the glue application. After the application is completed, the robotic arm 7 connects the cover plate 6 to the top of the protective box 5, so that the glue dispensing plate 27 is inserted into the protective box 5, and the scraper 31 is inserted into the corresponding glue dispensing port 28.

[0043] Step 2: Motor 23 drives cam 22 to rotate, that is, cam 22 applies tension to the two elongated plates 9 simultaneously, causing the two L-shaped pressure plates 13 to move closer to each other, so that the L-shaped pressure plates 13 press tightly against the corresponding pressure grooves 15, thereby improving the tightness of the connection between the cover plate 6 and the protective box 5 and preventing the intrusion of external impurities.

[0044] Step 3: The L-shaped pressure plate 13 is pressed against the control switch 17, and the electric heating plate and motor 24 are turned on simultaneously. The electric heating plate keeps the inside of the protective box 5 at a high temperature. The motor 24 drives multiple toothed discs 25 to rotate synchronously, which in turn drives multiple scrapers 31 to rotate synchronously, thereby scraping off the adhesive adhering to the inner wall of the glue outlet 28. This quickly removes the residual glue from the glue outlet 28, improving coating accuracy and product quality. The glue is temporarily stored in the protective box 5 and then discharged from the glue discharge pipe 19 for easy reuse.

[0045] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An environmentally friendly, water-based, H-grade low-resistance fiberglass substrate coating equipment for band processing, characterized in that, The system includes a conveyor platform (1) and a frame (2) connected to the conveyor platform (1). The frame (2) is connected to a glue-applying mechanism for applying glue to a substrate. The glue-applying mechanism includes a liquid storage tank (3), a cover plate (6), a glue dispensing plate (27), and multiple glue outlets (28). The glue discharge end of the liquid storage tank (3) is connected to the glue dispensing plate (27). The glue dispensing plate (27) is connected to the bottom of the cover plate (6). The multiple glue outlets (28) are connected to the glue dispensing plate (27). A protective box (5) is connected to one side of the conveyor platform (1). The protective box (5) is connected to a glue scraping mechanism for scraping glue inside the multiple glue outlets (28). It includes multiple scrapers (31) and a second motor (24). The second motor (24) is used to drive the multiple scrapers (31) to rotate synchronously. A control switch (17) for controlling the second motor (24) to open and close is connected to one side of the protective box (5). The protective box (5) is also connected to a connection mechanism for the cover plate (6) to be securely connected to the protective box (5). The connection mechanism includes two L-shaped pressure plates (13) and a first motor (23). The first motor (23) is used to drive the two L-shaped pressure plates (13) to move closer or further away from each other. The top of the cover plate (6) is provided with a pressure groove (15) that matches the L-shaped pressure plates (13). When the cover plate (6) is connected to the top of the protective box (5), the scraper (31) is inserted into the corresponding glue outlet (28), the L-shaped pressure plate (13) is pressed against the pressure groove (15), and the L-shaped pressure plate (13) is connected to the control switch (17), the motor (24) is turned on, and multiple scrapers (31) rotate synchronously.

2. The environmentally friendly water-based H-grade low-resistance fiberglass substrate coating equipment according to claim 1, characterized in that, The glue application mechanism also includes a glue pump and a glue delivery hose (4). The glue pump is connected to the liquid storage tank (3), and the output end of the glue pump is connected to one end of the glue delivery hose (4). The other end of the glue delivery hose (4) is connected to the cover plate (6) and is connected to the glue outlet plate (27).

3. The environmentally friendly water-based H-grade low-resistance fiberglass substrate coating equipment according to claim 2, characterized in that, The frame (2) is connected to a robotic arm (7), the end of which is connected to the cover plate (6).

4. The environmentally friendly water-based H-grade low-resistance fiberglass substrate coating equipment according to claim 3, characterized in that, The scraping mechanism also includes multiple rotating shafts (29), multiple toothed discs (25), and multiple toothed discs (26). The two ends of the rotating shafts (29) are connected to the scraper (31) and the toothed discs (25), and the rotating shafts (29) are sealed and rotatably connected to the protective box (5). The toothed discs (26) are meshed with two adjacent toothed discs (25). The toothed discs (26) are connected to the bottom of the protective box (5) through a bearing. The power output end of the motor (24) is connected to the toothed discs (25).

5. The environmentally friendly water-based H-grade low-resistance fiberglass substrate coating equipment according to claim 4, characterized in that, The scraper (31) includes a main board (32), two side plates (35), an inner cavity (33), multiple springs (36), and a partition (34). The side plates (35) are inserted into both sides of the scraper (31) and are slidably connected to the inner cavity (33). The inner cavity (33) is located inside the main board (32). The partition (34) is connected to the center of the inner cavity (33). The two ends of the springs (36) are connected to the side plates (35) and the partition (34).

6. The environmentally friendly water-based H-grade low-resistance fiberglass substrate coating equipment according to claim 5, characterized in that, The top of the motherboard (32) and the side panel (35) are provided with guide surfaces, and the two guide surfaces are aligned.

7. The environmentally friendly water-based H-class low-resistance fiberglass substrate coating equipment according to claim 4, characterized in that, The connecting mechanism also includes two guide posts (11), two springs (12), an L-shaped plate (10), a connecting shaft (18), two elongated plates (9), a connecting frame (21), and a cam (22). The guide posts (11) are fixed to the protective box (5) and pass through the L-shaped pressure plate (13). The springs (12) are sleeved on the guide posts (11), and the two ends of the springs (12) are connected to the ends of the L-shaped pressure plate (13) and the guide posts (11). The two L-shaped pressure plates (13) are connected to the ends of the guide posts (11). The cam (22) is rotatably connected to the cover plate (6), and the two ends of the long round plate (9) are rotatably connected to the connecting shaft (18) and the cam (22). The two ends of the other long round plate (9) are rotatably connected to the L-shaped plate (10) and the cam (22). The power output end of the motor (23) is connected to the cam (22), and the motor (23) is fixed to the connecting frame (21). The connecting frame (21) is connected to the back of the protective box (5).

8. The environmentally friendly water-based H-grade low-resistance fiberglass substrate coating equipment according to claim 7, characterized in that, The protective box (5) has an opening at the top and a bottom surface (30) at the bottom of the interior. The bottom surface (30) is an inclined surface. A glue drain pipe (19) is connected to one side of the protective box (5), and a valve (20) is connected to the glue drain pipe (19).

9. The environmentally friendly water-based H-class low-resistance fiberglass substrate coating equipment according to claim 8, characterized in that, An electric heating plate is connected to the inside of the protective box (5), and the electric heating plate is electrically connected to the control switch (17).

10. The operating method of the environmentally friendly water-based H-grade low-resistance fiberglass substrate coating equipment according to claim 7: characterized in that it includes the following steps: Step 1: The robotic arm (7) places the cover plate (6) on the top of the conveyor table (1), and the glue pump delivers the glue liquid in the storage tank (3) through the glue delivery hose (4) to the glue outlet plate (27), and flows out from multiple glue outlets (28) to the surface of the substrate to realize the glue application operation. After the coating is completed, the robotic arm (7) connects the cover plate (6) to the top of the protective box (5), so that the glue outlet plate (27) is inserted into the protective box (5), and the scraper (31) is inserted into the corresponding glue outlet (28). Step 2: Motor 1 (23) drives cam (22) to rotate, that is, cam (22) applies tension to the two elongated plates (9) simultaneously, causing the two L-shaped pressure plates (13) to move closer to each other, so that the L-shaped pressure plates (13) are pressed tightly against the corresponding pressure grooves (15), improving the tightness of the connection between the cover plate (6) and the protective box (5) and preventing external impurities from entering; Step 3: Press the L-shaped pressure plate (13) against the control switch (17). The electric heating plate and motor 2 (24) start working simultaneously. The electric heating plate keeps the inside of the protective box (5) at a high temperature. Motor 2 (24) drives multiple toothed discs (25) to rotate synchronously, which in turn drives multiple scrapers (31) to rotate synchronously. This scrapes off the adhesive adhering to the inner wall of the glue outlet (28), thereby quickly removing the residual glue from the glue outlet (28), improving the coating accuracy and product quality. The glue is temporarily stored in the protective box (5) and then discharged from the glue discharge pipe (19) for easy reuse.

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