Vacuum glue injection equipment integrating ultra-low leakage rate and rapid sealing function

Abstract

The utility model discloses a kind of vacuum glue injection equipment of integrated ultra-low leakage rate and quick sealing function, comprising: equipment frame, the positioning table for positioning and placing product is equipped on the equipment frame upper end, vacuum glue injection cover is movably lifted by limiting guide rod and is equipped on the outside of positioning table, glue injection shaft, glue injection plate rotation is driven by gear transmission by servo motor, cooperate equidistant glue injection head, realize 360 ° rotation glue injection. Compared with traditional fixed glue injection head, it can be flexibly adapted to the multi-angle glue injection needs of complex products, solve the single problem of glue injection path, ensure that colloid is evenly distributed, effectively improve product yield. Vacuum pump, pneumatic butterfly valve and vacuum pressure sensor constitute intelligent system. Sensor real-time monitoring pressure in vacuum glue injection cover, feedback to control system, automatically adjust butterfly valve opening degree and pump operation, change the instability of manual adjustment, ensure that vacuum degree is stable during vacuum glue injection process, reduce bubble generation, improve product quality.

Description

Technical Field

[0001] This utility model belongs to the field of glue injection equipment technology, specifically relating to a vacuum glue injection equipment that integrates ultra-low leakage rate and rapid sealing function. Background Technology

[0002] In modern industrial production, vacuum dispensing equipment has extremely wide applications, covering many fields such as electronics, automotive, and aerospace, and its importance is self-evident. For vacuum dispensing equipment, achieving efficient sealing and precise dispensing is key to improving product quality and production efficiency.

[0003] In existing technologies, many vacuum dispensing devices suffer from numerous problems that urgently need to be addressed. Regarding dispensing, conventional equipment often uses fixed dispensing heads, resulting in a severe lack of flexibility and making it difficult to meet the production needs of complex-shaped products or products requiring multi-angle dispensing. While some dispensing devices can achieve basic dispensing functions, their dispensing paths are limited, failing to ensure uniform distribution of the adhesive on or inside the product surface. This easily leads to problems such as localized insufficient adhesive or excessive dispensing, significantly reducing product yield. Furthermore, some equipment lacks effective real-time monitoring and adjustment mechanisms for vacuum control, relying solely on manual observation of the vacuum gauge to adjust the vacuum level. This not only fails to dynamically adjust according to the actual situation during the dispensing process but also easily results in large fluctuations in vacuum level, leading to excessive air bubbles in the adhesive. Utility Model Content

[0004] The purpose of this invention is to provide a vacuum dispensing device that integrates ultra-low leakage rate and rapid sealing function to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a vacuum dispensing device integrating ultra-low leakage rate and rapid sealing function, comprising:

[0006] The equipment frame has a positioning platform at the upper end for positioning and placing products. A vacuum dispensing cover is provided on the outside of the positioning platform via a guide rod to accommodate the dispensing products and provide a vacuum dispensing environment. A lifting sealing plate is provided on the upper end of the vacuum dispensing cover for pressing down and quickly sealing the port of the vacuum dispensing cover and fixing it tightly.

[0007] The glue-injection outer frame is located at the end of the equipment frame. A glue storage tank for storing, stirring, and conveying the glue is provided on one side of the outer frame. The vacuum glue-injection hood is equipped with a glue-injection plate that rotates to inject glue into the product from multiple directions.

[0008] Preferably, the vacuum dispensing cover has fixed guide plates on both sides of its exterior, and a limiting guide rod is movably inserted through the fixed guide plate. The bottom end of the limiting guide rod is inserted into an elastic element that is fixedly connected to one side of the fixed guide plate. This avoids damage to the sealing structure due to rigid collisions, extends the service life of the equipment, and indirectly improves the reliability of the seal, reducing leakage problems caused by damage to the sealing structure.

[0009] Preferably, the upper inner side of the vacuum dispensing cover is provided with a horizontal strip, and a hollow dispensing shaft is rotatably passed through the strip via bearing components. A connecting bearing component is embedded and fixed on the inner side of the upper end of the dispensing shaft, and a fixed dispensing tube that does not rotate with the dispensing shaft is sealed in the inner ring of the connecting bearing component, so that the equipment can adapt to the multi-angle dispensing needs of products with different shapes.

[0010] Preferably, the end of the strip is provided with a servo motor, the servo motor shaft is provided with a main gear, the main gear meshes with a secondary gear that drives the glue injection shaft to rotate, the bottom end of the glue injection shaft is connected to a hollow glue injection plate, and the bottom end of the glue injection plate is connected to glue injection heads that are equidistantly arranged, so as to ensure that the glue is evenly distributed on the surface or inside of the product, effectively solving the problems of local glue shortage or excessive glue injection.

[0011] Preferably, the bottom of the vacuum dispensing cover is provided with a sealing rubber frame that allows the vacuum dispensing cover to be fitted onto the outside of the positioning platform and the end face of the equipment frame for sealing. One end of the fixed dispensing tube inside the vacuum dispensing cover extends through to the outside of one side of the vacuum dispensing cover, ensuring that the adhesive can be smoothly delivered to the dispensing head in a vacuum environment without affecting the sealing performance of the vacuum dispensing cover.

[0012] Preferably, a metering pump is provided on the upper end of one side of the inner side of the glue injection frame, and one end of the metering pump is connected to an elastic glue injection hose that communicates with the fixed glue injection pipe, and the other end of the metering pump is connected to the bottom end of one side of the glue storage tank through the glue injection pipe, so as to prevent the glue delivery from being blocked or the connection from being leaked due to the rigid connection of the pipe, and further improve the stability and reliability of glue injection.

[0013] Preferably, the glue storage tank is equipped with a stirrer for stirring the glue inside the tank, and the front end of the glue storage tank is equipped with a PLC control box for controlling the pump, valve, cylinder and motor in the glue injection equipment, so as to realize intelligent and precise operation of the vacuum glue injection process.

[0014] Preferably, the upper inner side of the equipment frame is symmetrically provided with lifting cylinders, and the lower end of the lifting cylinders is fixed to the upper surface of the lifting sealing plate. The upper surface of the lifting sealing plate is provided with a rubber sealing gasket for pressing and sealing the upper opening of the vacuum dispensing cover. It can tightly fit the port of the vacuum dispensing cover to form a second sealing line. It cooperates with the sealing rubber frame at the bottom of the vacuum dispensing cover to achieve double sealing, effectively reduce the leakage rate, and ensure the stability of the vacuum dispensing environment.

[0015] Preferably, a vacuum pump is provided on the lower end face of the equipment frame, and a vacuum pipeline is connected to the vacuum pump. The vacuum pipeline is equipped with a pneumatic butterfly valve for controlling the opening and closing of the vacuum pipeline, and a vacuum pressure sensor for real-time monitoring of the pressure inside the vacuum dispensing hood. The vacuum pipeline moves through the equipment frame and connects to the outside of the vacuum dispensing hood. The control system can adjust the opening degree of the pneumatic butterfly valve or the operating status of the vacuum pump in a timely manner according to the feedback information to achieve dynamic adjustment of the vacuum degree.

[0016] Compared with existing technologies, the technical effects and advantages of this utility model are: this vacuum dispensing equipment integrates ultra-low leakage rate and rapid sealing function.

[0017] A servo motor drives the dispensing shaft and dispensing plate to rotate via gear transmission, which, in conjunction with equidistant dispensing heads, enables 360° rotating dispensing. Compared to traditional fixed dispensing heads, this design can flexibly adapt to the multi-angle dispensing needs of complex products, solve the problem of a single dispensing path, ensure uniform dispensing of the adhesive, and effectively improve product yield.

[0018] A vacuum pump, a pneumatic butterfly valve, and a vacuum pressure sensor constitute an intelligent system. The sensor monitors the pressure inside the vacuum dispensing hood in real time and feeds it back to the control system, which automatically adjusts the butterfly valve opening and pump operation. This mitigates the instability of manual adjustments, ensures stable vacuum levels during the dispensing process, reduces bubble formation, and improves product quality.

[0019] The lifting cylinder drives the lifting sealing plate, which, together with the rubber sealing gasket, quickly seals the opening on the vacuum dispensing cover; the bottom sealing rubber frame forms the first line of defense. Compared with the traditional method, the double sealing design greatly improves the sealing efficiency, reduces the leakage rate, and provides a stable vacuum environment for dispensing.

[0020] The agitator prevents colloid sedimentation, and the PLC control box automates the control of equipment components, enabling intelligent dispensing. Meanwhile, limit rods, fixed guide plates, and elastic components provide guidance and cushioning for the lifting and lowering of the vacuum dispensing hood, preventing damage to the sealing structure from collisions, extending equipment life, and ensuring stable and reliable operation. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the structure of this utility model;

[0022] Figure 2 This is a diagram showing the working state of the glue dispensing equipment of this utility model;

[0023] Figure 3 This is a front view of the glue injection plate of this utility model;

[0024] Figure 4 This is the internal view of the glue storage tank of this utility model.

[0025] In the diagram: 1. Equipment frame; 2. Positioning platform; 3. Limiting guide rod; 4. Vacuum dispensing cover; 5. Lifting sealing plate; 6. Dispensing outer frame; 7. Dispensing tank; 8. Dispensing plate; 9. Fixed guide plate; 11. Elastic component; 12. Dispensing shaft; 13. Connecting bearing; 14. Fixed dispensing tube; 15. Servo motor; 16. Main gear; 17. Secondary gear; 18. Dispensing head; 19. Sealing rubber frame; 20. Metering pump; 21. Elastic dispensing hose; 22. Agitator; 23. PLC control box; 24. Lifting cylinder; 25. Rubber sealing gasket; 26. Vacuum pump; 27. Vacuum pipeline; 28. Pneumatic butterfly valve; 29. ​​Vacuum pressure sensor. Detailed Implementation

[0026] 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 of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0027] Please see Figure 1-4 This utility model provides a technical solution: a vacuum dispensing device integrating ultra-low leakage rate and rapid sealing function, comprising:

[0028] The equipment frame 1 has a positioning platform 2 at its upper end for positioning and placing products. The surface of the positioning platform 2 is made of non-slip and wear-resistant material, and its flatness error is ensured to be within ±0.05mm through high-precision machining. This allows for accurate positioning and placement of products, effectively preventing product displacement during the glue injection process and ensuring glue injection accuracy. A vacuum glue injection cover 4, which accommodates the glue injection product and provides a vacuum glue injection environment, is movable and height-adjustable on the outside of the positioning platform 2 via a limiting guide rod 3. This vacuum glue injection cover 4 is made of aerospace-grade aluminum-magnesium alloy and formed through precision casting, featuring light weight and high strength. Furthermore, the inner wall is anodized, making it smooth and flat. This not only effectively reduces adhesive residue but also accommodates the glued product and covers the outside of the positioning platform 2, providing a stable vacuum environment for the glued product injection process. The upper end of the vacuum glued product injection cover 4 is equipped with a lifting sealing plate 5 for pressing down and quickly sealing and fixing the port of the vacuum glued product injection cover 4. The plate is made of high-quality stainless steel with a mirror-polished surface. Combined with a high-precision machined guide groove, it can achieve pressing down and quickly sealing and fixing the port of the vacuum glued product injection cover 4. The sealing pressure can be precisely adjusted through the air pressure control system to ensure a stable and reliable sealing effect.

[0029] The outer frame 6, located at the end of the equipment frame 1, serves as the core area for colloid storage, mixing, and conveying. A storage tank 7 is installed on one side of the frame. The tank body is made of double-layer stainless steel, filled with high-efficiency insulation material to effectively maintain a stable temperature of the colloid inside, ensuring that the colloid's flowability meets the requirements of the colloid injection process. The outer frame 6 has a storage tank 7 for storing, mixing, and conveying the colloid. The vacuum colloid injection hood 4 contains a rotating colloid injection plate 8 for multi-directional colloid injection of the product.

[0030] The vacuum dispensing cover 4 has fixed guide plates 9 on both sides, and the limiting guide rod 3 moves through the fixed guide plates 9. The bottom end of the limiting guide rod 3 has an elastic element 11 fixedly connected to one side of the fixed guide plate 9. This provides good buffering and shock absorption during the lifting and lowering of the vacuum dispensing cover 4, reducing vibration and noise during equipment operation. The limiting guide rod 3 is fixed to the end of the equipment frame 1 and located on both sides of the positioning platform. The limiting guide rod 3 is made of high-strength alloy steel, surface hardened to a hardness of HRC55-60, possessing good wear resistance and fatigue resistance, and forming a stable support structure to ensure smooth and reliable lifting and lowering of the vacuum dispensing cover 4.

[0031] The upper inner side of the vacuum dispensing cover 4 is provided with a horizontal strip, and a hollow dispensing shaft 12 is rotatably passed through the strip via bearing components. The dispensing shaft 12 is made of stainless steel and has undergone precision polishing. The inner wall roughness Ra≤0.8μm can effectively reduce the flow resistance of the glue. A connecting bearing component 13 is embedded and fixed on the inner side of the upper end of the dispensing shaft 12. A fixed dispensing tube 14 that does not rotate with the dispensing shaft 12 is sealed in the inner ring of the connecting bearing component 13. The fixed dispensing tube 14 uses special sealing materials and processes to ensure that no glue leakage occurs during high-speed rotation.

[0032] A servo motor 15 is provided at the end of the strip plate. The dispensing plate 8 can rotate under the drive of the servo motor 15, thereby realizing multi-directional dispensing of the dispensing product and ensuring that all parts of the product can be evenly and fully dispensed. The servo motor 15 has a main gear 16 on its rotating shaft. The main gear 16 meshes with a secondary gear 17 that drives the dispensing shaft 12 to rotate. The gear set is processed by high-precision grinding, and the tooth surface accuracy reaches level 6. It has high transmission efficiency and can ensure that the dispensing shaft 12 rotates stably and accurately. The bottom end of the dispensing shaft 12 is connected to the hollow dispensing plate 8, and the bottom end of the dispensing plate 8 is connected to the dispensing heads 18 that are equidistantly arranged. The dispensing heads 18 are made of precision-machined ceramic material, which has the characteristics of high temperature resistance, wear resistance and corrosion resistance. Its orifice accuracy is controlled within ±0.01mm, which can realize precise dispensing of adhesive.

[0033] The bottom of the vacuum dispensing cover 4 is provided with a sealing rubber frame 19, which covers the outer side of the positioning table 2 and seals the end face of the equipment frame 1. One end of the fixed dispensing tube 14 inside the vacuum dispensing cover 4 extends through to the outside of one side of the vacuum dispensing cover 4. In a vacuum environment, the sealing rubber frame 19 can maintain stable sealing performance and effectively prevent external air from entering the interior of the vacuum dispensing cover 4.

[0034] A metering pump 20 is installed on the upper side of one side inside the glue injection outer frame 6. It adopts a high-precision gear metering pump with a metering accuracy of ±0.5%. It can accurately control the delivery amount of glue according to the glue injection process requirements. One end of the metering pump 20 is connected to an elastic glue injection hose 21 that is connected to the fixed glue injection pipe 14. The hose is made of food-grade silicone material, which has good flexibility and corrosion resistance and can adapt to different installation environments and glue injection pressure changes. The other end of the metering pump 20 is connected to the bottom side of the glue storage tank 7 through the glue injection pipe.

[0035] The storage tank 7 is equipped with a stirrer 22 for agitating the colloid inside the tank. Driven by a variable frequency speed-regulating motor, the stirring speed can be flexibly adjusted within the range of 50-300 rpm according to different colloid characteristics. Through specially designed stirring blades, uniform agitation of the colloid is achieved, preventing sedimentation and stratification. The front of the storage tank 7 is equipped with a PLC control box 23 for controlling the pump, valve, cylinder, and motor in the dispensing equipment. Utilizing a high-performance PLC controller, it possesses powerful data processing and logic control capabilities. By writing professional control programs, precise control of various components in the dispensing equipment, such as the pump, valve, cylinder, and motor, can be achieved, realizing automated operation of the equipment.

[0036] The upper inner side of the equipment frame 1 is symmetrically provided with lifting cylinders 24, and the lower end of the lifting cylinders 24 is fixed to the upper end face of the lifting sealing plate 5. The end face of the lifting sealing plate 5 is provided with a rubber sealing gasket 25 for pressing down and sealing the upper opening of the vacuum glue injection cover 4.

[0037] The vacuum pump 26, mounted on the lower end face of the equipment frame 1, is a high-performance rotary vane vacuum pump with an ultimate vacuum level of 1×10⁻³Pa, capable of quickly evacuating the interior of the vacuum dispensing hood 4 to the required vacuum level. A vacuum pipe 27, made of stainless steel and rigorously pressure-tested, is connected to the vacuum pump 26 to withstand pressure changes in a high-vacuum environment. A pneumatic butterfly valve 28 is installed on the vacuum pipe 27. This pneumatically driven valve features fast opening and closing speed and excellent sealing performance, enabling precise control of the opening and closing of the vacuum pipe 27. Simultaneously, a vacuum pressure sensor 29, a high-precision digital sensor with a measurement accuracy of ±0.1%FS, is also installed on the vacuum pipe 27. This sensor monitors the vacuum pressure inside the vacuum dispensing hood 4 in real time and transmits the pressure data to the PLC control box 23 for precise control and adjustment of the vacuum dispensing process.

[0038] A vacuum dispensing device integrating ultra-low leakage rate and rapid sealing function, in practical applications, has the following specific workflow and the coordinated operation of its various components:

[0039] In the initial state, the vacuum dispensing cover 4 is in the raised position. Using the positioning platform 2, the operator can easily and accurately place the product to be dispensed onto the equipment rack 1. The positioning platform 2 is designed with the shape and size characteristics of different products in mind. Its surface is equipped with positioning grooves or protrusions to accommodate various products, ensuring accurate placement and preparing for subsequent dispensing operations. At this time, the limiting guide rod 3 passes through the fixed guide plate 9, and the elastic element 11 at the bottom is in a naturally extended state. This not only provides stable guidance for the lifting and lowering of the vacuum dispensing cover 4 but also effectively buffers the impact force generated by the lifting and lowering motion during equipment operation, protecting the integrity of the equipment structure.

[0040] After the product is placed, the operator issues a command through the equipment's control system, and the symmetrically distributed lifting cylinders 24 inside the equipment frame 1 begin to operate. The piston of the lifting cylinder 24 pushes downward, causing the lifting sealing plate 5, which is fixedly connected to it, to descend smoothly. During the descent, the rubber sealing gasket 25 on the end face of the lifting sealing plate 5 first contacts the upper edge of the vacuum injection cover 4. The rubber sealing gasket 25 is made of a special rubber material with high elasticity and wear resistance, and its surface has been finely treated, possessing good flexibility and sealing performance. As the lifting cylinder 24 continues to operate, the rubber sealing gasket 25 undergoes elastic deformation under pressure, tightly fitting the port of the vacuum injection cover 4, forming the first line of sealing defense. At the same time, the vacuum injection cover 4, constrained by the limiting guide rod 3, descends smoothly along the guide of the fixed guide plate 9. When the bottom end of the vacuum injection cover 4 contacts the end face of the equipment frame 1, the sealing rubber frame 19 at its bottom end comes into play. The sealing rubber frame 19 is made of rubber with moderate hardness and is fixedly connected to the bottom of the vacuum dispensing cover 4 through a special process. Under contact pressure, the sealing rubber frame 19 fits tightly against the end face of the equipment frame 1, forming a second line of defense for sealing. The design of the double sealing structure greatly improves the sealing performance of the equipment, effectively reduces the leakage rate, and creates a stable vacuum environment for the vacuum dispensing process.

[0041] After sealing is completed, the vacuum pump 26 on the lower end of the equipment frame 1 is started. The vacuum pump 26 is connected to the vacuum dispensing hood 4 through the vacuum pipe 27. At the moment of startup, the pneumatic butterfly valve 28 is in the open state to ensure smooth gas flow. As the vacuum pump 26 operates, the air inside the vacuum dispensing hood 4 is rapidly extracted. The vacuum pressure sensor 29 monitors the changes in internal vacuum pressure in real time and transmits the data to the PLC control box 23 in real time. The PLC control box 23 has a built-in high-precision pressure control program. When the vacuum pressure inside the vacuum dispensing hood 4 reaches the preset value, the PLC control box 23 immediately issues a command to control the pneumatic butterfly valve 28 to close, thereby stabilizing the vacuum pressure inside the vacuum dispensing hood 4 at the required level and providing ideal vacuum conditions for the dispensing operation.

[0042] While the vacuum is being created, the agitator 22 inside the storage tank 7 operates continuously. The agitator 22 employs a high-efficiency impeller design, enabling thorough mixing of the colloid within the tank at a suitable speed. This effectively prevents sedimentation and stratification during storage, ensuring the uniformity and flowability of the colloid. Once the predetermined vacuum level is reached inside the vacuum dispensing hood 4, the metering pump 20 inside the dispensing outer frame 6 begins operation. As a high-precision colloid delivery device, the metering pump 20 precisely controls the amount of colloid delivered according to preset dispensing parameters. The metering pump 20 draws colloid from the bottom of the storage tank 7 through the dispensing pipe, and delivers it to the fixed dispensing pipe 14 via the flexible dispensing hose 21. The flexible dispensing hose 21 possesses excellent flexibility and pressure resistance, adapting to displacement and vibration caused by the rotation of the dispensing shaft 12 during equipment operation, ensuring the stability of colloid delivery. The fixed dispensing tube 14 and the dispensing shaft 12 are sealed together by the connecting bearing 13, and the fixed dispensing tube 14 does not rotate with the dispensing shaft 12. This unique structural design ensures that the glue will not leak during the conveying process, while providing a stable glue supply channel for the rotation of the dispensing shaft 12.

[0043] The servo motor 15 at the end of the strip plate starts under the command of the PLC control box 23. The shaft of the servo motor 15 drives the main gear 16 to rotate. The main gear 16 meshes with the auxiliary gear 17, transmitting power to the dispensing shaft 12 and driving it to rotate. The dispensing shaft 12 is a hollow structure, with its bottom end connected to the dispensing plate 8. The dispensing plate 8 is also hollow, with multiple dispensing heads 18 evenly distributed at its bottom end. As the dispensing shaft 12 rotates, the dispensing plate 8 and the dispensing heads 18 rotate together, realizing multi-directional dispensing of glue to the product. The dispensing heads 18 adopt a special nozzle design, which can adjust the dispensing volume and dispensing angle according to the characteristics of different glues and the dispensing process requirements, ensuring that the glue can be injected evenly and accurately into the designated position of the product. During the dispensing process, the PLC control box 23 monitors the delivery volume of the metering pump 20, the speed of the servo motor 15, and the working status of the dispensing head 18 in real time. Based on the preset dispensing program and the actual needs of the product, it precisely controls each component to ensure the efficiency and accuracy of the dispensing process.

[0044] After the glue injection is completed, the PLC control box 23 issues a command to first open the pneumatic butterfly valve 28, gradually releasing the vacuum inside the vacuum glue injection hood 4. Once the vacuum pressure returns to normal, the lifting cylinder 24 actuates again, lifting the lifting sealing plate 5 to release the seal on the upper port of the vacuum glue injection hood 4. Subsequently, the vacuum glue injection hood 4 rises under the action of the limit guide rod 3, allowing the operator to remove the glued product. Throughout the entire equipment operation, the PLC control box 23, as the core of the equipment's control, intelligently controls various components such as the pump body, valve body, cylinder, and motor through preset control programs and real-time monitoring data, achieving automated operation of the equipment and significantly improving production efficiency and product quality. Simultaneously, the reasonable design and compact structure of the equipment's components facilitate daily maintenance and repair by operators, effectively reducing equipment maintenance costs and downtime.

[0045] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A vacuum dispensing device integrating ultra-low leakage rate and rapid sealing function, characterized in that, include: The equipment rack (1) has a positioning platform (2) at the upper end for positioning and placing products. The outer side of the positioning platform (2) is equipped with a vacuum injection cover (4) for accommodating the injection products and covering the positioning platform (2) to provide a vacuum injection environment. The vacuum injection cover (4) is equipped with a lifting sealing plate (5) at the upper end for pressing down and quickly sealing and fixing the port of the vacuum injection cover (4). The glue injection outer frame (6) is located at the end of the equipment frame (1). The glue injection outer frame (6) is provided on one side of the outside of the glue injection outer frame (6) for storing, stirring and conveying the glue. The vacuum glue injection cover (4) is provided with a glue injection plate (8) for rotating and injecting glue into the glue product from multiple directions.

2. The vacuum dispensing equipment integrating ultra-low leakage rate and rapid sealing function according to claim 1, characterized in that: The vacuum injection cover (4) has fixed guide plates (9) on both sides of its exterior, and a limiting guide rod (3) is movably inserted through the fixed guide plate (9), and an elastic element (11) is inserted into the bottom end of the limiting guide rod (3) and is fixedly connected to one side of the fixed guide plate (9).

3. The vacuum dispensing equipment integrating ultra-low leakage rate and rapid sealing function according to claim 1, characterized in that: The vacuum injection cover (4) has a horizontal strip on the upper inner side, and a hollow injection shaft (12) is inserted through the strip by a bearing component. A connecting bearing component (13) is embedded and fixed on the inner side of the upper end of the injection shaft (12), and a fixed injection tube (14) that does not rotate with the injection shaft (12) is sealed in the inner ring of the connecting bearing component (13).

4. The vacuum dispensing equipment integrating ultra-low leakage rate and rapid sealing function according to claim 3, characterized in that: The end of the strip is provided with a servo motor (15), the shaft of the servo motor (15) is provided with a main gear (16), the main gear (16) meshes with a secondary gear (17) that drives the glue injection shaft (12) to rotate, the bottom end of the glue injection shaft (12) is connected to a hollow glue injection plate (8), and the bottom end of the glue injection plate (8) is connected to glue injection heads (18) that are equidistantly arranged.

5. The vacuum dispensing equipment integrating ultra-low leakage rate and rapid sealing function according to claim 4, characterized in that: The bottom end of the vacuum glue injection cover (4) is provided with a sealing rubber frame (19) that allows the vacuum glue injection cover (4) to be covered on the outside of the positioning table (2) and sealed with the end face of the equipment frame (1). One end of the fixed glue injection tube (14) inside the vacuum glue injection cover (4) extends through to the outside of one side of the vacuum glue injection cover (4).

6. The vacuum dispensing equipment integrating ultra-low leakage rate and rapid sealing function according to claim 5, characterized in that: The upper side of the inner side of the glue injection frame (6) is provided with a metering pump (20), and one end of the metering pump (20) is connected to an elastic glue injection hose (21) that communicates with the fixed glue injection pipe (14), and the other end of the metering pump (20) is connected to the bottom side of the glue storage tank (7) through the glue injection pipe.

7. The vacuum dispensing equipment integrating ultra-low leakage rate and rapid sealing function according to claim 1, characterized in that: The glue storage tank (7) is equipped with a stirrer (22) for stirring the glue inside the tank. The front end of the glue storage tank (7) is equipped with a PLC control box (23) for controlling the pump, valve, cylinder and motor in the glue dispensing equipment.

8. The vacuum dispensing equipment integrating ultra-low leakage rate and rapid sealing function according to claim 1, characterized in that: The equipment frame (1) is symmetrically provided with lifting cylinders (24) on the upper inner side, and the lower end of the lifting cylinders (24) is fixed on the upper end face of the lifting sealing plate (5). The end face of the lifting sealing plate (5) is provided with a rubber sealing gasket (25) for pressing and sealing the upper opening of the vacuum glue injection cover (4).

9. A vacuum dispensing device integrating ultra-low leakage rate and rapid sealing function according to claim 1, characterized in that: The lower end face of the equipment frame (1) is provided with a vacuum pump (26), and a vacuum pipe (27) is connected to the vacuum pump (26). The vacuum pipe (27) is provided with a pneumatic butterfly valve (28) for controlling the opening and closing of the vacuum pipe (27) and a vacuum pressure sensor (29) for real-time monitoring of the vacuum pressure inside the vacuum injection cover (4). The vacuum pipe (27) moves through the equipment frame and connects to the outside side of the vacuum injection cover (4).

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