Constant-pressure feeding device for negative electrode adhesive production

Abstract

The utility model provides a constant pressure feeding device for negative electrode adhesive production, which comprises a bottom plate, an upper plate and a material storage tank, the upper plate is fixedly connected to the upper end of the bottom plate through a connecting column, the material storage tank is positioned between the bottom plate and the upper plate, the upper end of the material storage tank is connected with the upper plate in an embedded manner, and an upper cover is arranged at the upper end of the material storage tank. The upper end of the surface of the material storage tank is connected with an exhaust pipe through an exhaust valve, a stirring assembly is arranged in the material storage tank, the lower end of the material storage tank is connected with a material supply pipeline through a material supply pump, a filter plate is arranged in the material supply pipeline, and a dismounting assembly is arranged between the inner wall of the material supply pipeline and the filter plate. Mounting plates are fixedly connected to the lower ends of the rotating shafts. According to the constant-pressure feeding device for producing the negative electrode adhesive, by arranging the stirring assembly, the distribution uniformity degree of all components in the negative electrode adhesive is remarkably improved, and the product quality is improved; the filter plate can be quickly replaced by arranging the dismounting assembly, the operation is simple, and time and labor are saved.

Description

Technical Field

[0001] This utility model relates to the field of negative electrode adhesive production technology, and more specifically, to a constant pressure feeding device for negative electrode adhesive production. Background Technology

[0002] In lithium battery production, the negative electrode binder plays a crucial role. It binds the negative electrode active material and conductive agent to the current collector, ensuring the integrity of the electrode during charging and discharging. As the application fields of lithium batteries continue to expand, the market demands higher performance, quality, and yield, which also places higher requirements on the production process of negative electrode binders. Existing binder production processes often require quantitative feeding devices, such as the quantitative addition of various raw materials in the reactor. Traditional quantitative feeding generally involves taking materials from a fixed quantitative container and then feeding them quantitatively. However, quantitative feeding with quantitative containers requires multiple extractions of raw materials, which is cumbersome. The quantitative container and the main storage hopper are difficult to connect directly and effectively, resulting in poor linkage. Currently, some automatic quantitative feeding devices on the market generally have a fixed quantitative capacity, which is inconvenient to adjust, has a complex mechanical structure, and is costly.

[0003] To address the aforementioned issues, existing adhesive production processes often require quantitative feeding devices, such as the quantitative addition of various raw materials in a reaction vessel. Traditional quantitative feeding typically involves taking material from a fixed metering container and then feeding it in a quantitative manner. However, metering container-based quantitative feeding requires multiple extractions of raw materials, which is cumbersome. Furthermore, the metering container and the main storage hopper are difficult to connect directly and effectively, resulting in poor linkage. Currently, some automatic quantitative feeding devices on the market generally have a fixed metering capacity, making adjustment inconvenient, and their mechanical structures are complex and costly. Regarding these technical issues, after extensive searching, patent publication number CN209939945U was found to describe a quantitative feeding device specifically for adhesive production, including a storage hopper, the bottom of which... The device includes a discharge port, the opening of which is covered by a metering block. The metering block is slidably connected to the discharge port opening via a sliding sealing mechanism. The surface of the metering block has a receiving groove, and a baffle mechanism for controlling the capacity of the receiving groove is provided inside. The main sidewall of the metering block is rotatably fixed to the inner wall of a feeding cylinder via a rotating shaft. The bottom of the storage hopper is integrally mounted on the top surface. The bottom of the feeding cylinder has an opening, and the sidewall of the feeding cylinder is equipped with a drive device for rotating the rotating shaft. The receiving groove of this invention allows for metered discharge from the storage hopper, with adjustable discharge volume. The drive device allows for convenient control of the metering block's rotation, enabling rapid discharge. However, the technical solution provided by this patent has the following problems:

[0004] (1) For negative electrode binders with significant differences in density among their components, precipitation and stratification are very likely to occur during storage due to gravity. Taking a negative electrode binder containing a high-density inorganic filler and a low-density organic polymer matrix as an example, when left to stand for a long time, the inorganic filler will slowly sink, while the organic polymer will accumulate on the upper layer, eventually leading to stratification. However, ordinary stirring devices have certain limitations in terms of stirring methods, making it difficult to completely break the stratification structure formed by density differences, resulting in the components in the negative electrode binder not being evenly distributed, which in turn has an adverse effect on its performance.

[0005] (2) In the storage and preparation of negative electrode binder, some solid impurities will inevitably be mixed in. During the feeding stage, in order to ensure that the quality of negative electrode binder meets the standards, some devices will install filter plates inside the conveying pipeline to prevent impurities from entering the subsequent production equipment. However, most of the filter devices on the market are installed in the pipeline by means of thread fixing, but after a long period of use, the threads are very easy to rust. Once the threads rust, the operation difficulty will increase significantly when it is necessary to disassemble and replace the filter plate. It is not only cumbersome and complicated, but also very time-consuming and labor-intensive.

[0006] This invention significantly improves the uniformity of the distribution of various components in the negative electrode adhesive, thereby enhancing product quality; it also enables rapid replacement of the filter plate, making operation simple, time-saving, and labor-saving. Summary of the Invention

[0007] The present invention aims to solve the technical problems mentioned in the background art and provide a constant pressure feeding device for the production of negative electrode adhesive. The stirring component significantly improves the uniformity of the distribution of each component in the negative electrode adhesive and improves the product quality. The filter plate can be quickly replaced by disassembling and assembling the component. The operation is simple and saves time and effort.

[0008] To achieve the above objectives, this utility model provides the following technical solution: a constant pressure feeding device for the production of negative electrode adhesive, comprising: a base plate, an upper plate, and a storage tank. The upper plate is fixedly connected to the upper end of the base plate via a connecting column. The storage tank is located between the base plate and the upper plate. The upper end of the storage tank is embedded in the upper plate. A top cover is provided on the upper end of the storage tank. An exhaust pipe is connected to the upper surface of the storage tank via an exhaust valve. A stirring assembly is provided inside the storage tank. A feeding pipe is connected to the lower end of the storage tank via a feeding pump. A filter plate is provided inside the feeding pipe. A disassembly assembly is provided between the inner wall of the feeding pipe and the filter plate.

[0009] The stirring assembly includes a rotating shaft rotatably connected to the upper cover, a mounting plate fixedly connected to the lower end of the rotating shaft, a driving gear fixedly connected to the outer surface of the rotating shaft, a driven gear one meshing with the driving gear, a first connecting rod fixedly connected to the lower end of the driven gear, a driven gear two fixedly connected to the lower end of the first connecting rod, a driven gear three meshing with the outer side of the driven gear two, a connecting plate fixedly connected to the lower end of the driven gear three via a fixing rod, and a stirring paddle disposed at the lower end of the connecting plate;

[0010] The assembly / disassembly assembly includes a screw rotatably connected to the outer side of the filter plate, a movable block threadedly connected to the outer surface of the screw, sliders at both ends of the outer surface of the filter plate, second connecting rods hinged to the inner sides of the sliders, arc-shaped rubber blocks connected to both ends of the outer side of the sliders, and a handle on one side of the outer surface of the filter plate.

[0011] A further preferred embodiment: the lower end of the upper cover is rotatably connected to a rotating shaft, the upper end of the rotating shaft is connected to a motor, the output end of the motor is fixedly connected to the rotating shaft, the motor is fixedly installed on the upper end of the upper cover, and the lower end of the rotating shaft is fixedly connected to a mounting plate, the mounting plate being configured in a triangular shape.

[0012] A further preferred embodiment: The upper end of the mounting plate is provided with a drive gear, the drive gear is fixedly connected to the outer surface of the rotating shaft, the drive gear is meshed with a driven gear, there are three driven gears, which are respectively located above the three corners of the mounting plate, and a first connecting rod is fixedly connected to the lower end of the driven gear.

[0013] A further preferred embodiment: the first connecting rod passes through the lower end of the mounting plate and is fixedly connected to a driven gear two; a limit block is provided at the upper end of the mounting plate; the limit block is fixedly connected to the outer surface of the first connecting rod; and the first connecting rod is rotatably connected to the mounting plate.

[0014] A further preferred embodiment: a driven gear three is meshed with the outer side of the driven gear two, and a connecting plate is fixedly connected to the lower end of the driven gear three via a connecting block. A stirring paddle is fixedly connected to the outer side of the lower end of the connecting plate.

[0015] A further preferred embodiment: a screw is rotatably connected to the outer side of the filter plate, a movable block is threadedly connected to the outer surface of the screw, and a slider is slidably connected inside the grooves opened at both ends of the outer surface of the filter plate. The inner side of the slider is connected to a second connecting rod by a hinge, and the other end of the second connecting rod is connected to the movable block by a hinge.

[0016] A further preferred embodiment: the two outer ends of the slider are respectively connected to arc-shaped rubber blocks via connecting blocks, and a handle is provided on one side of the outer surface of the filter plate. Beneficial effects

[0017] 1. By setting up a stirring assembly, when the motor starts, the rotating shaft begins to rotate, simultaneously driving the mounting plate and the drive gear to rotate. The rotation of the mounting plate causes the entire stirring paddle to stir around the rotating shaft. At the same time, the rotation of the drive gear will sequentially transmit power, driving driven gear one to rotate, driven gear one in turn driving driven gear two, and driven gear two in turn driving driven gear three. Under this series of transmission actions, the movement mode of the stirring paddle becomes more diverse. It can not only stir around the rotating shaft, but also stir around the center of driven gear one and driven gear two respectively, greatly expanding the coverage area of ​​the stirring paddle. Under the action of different movement trajectories, the stirring paddle can perform more comprehensive and in-depth stirring of the negative electrode adhesive, effectively overcoming the stratification problem caused by the density difference of each component. This allows the denser inorganic filler and the less dense organic polymer matrix to be fully mixed, significantly improving the uniformity of the distribution of each component in the negative electrode adhesive and improving product quality.

[0018] 2. By setting up the disassembly and assembly components, when a new filter plate needs to be replaced, hold the handle on the filter plate to be replaced and place the filter plate into the feed pipe. When the outer periphery of the filter plate is in contact with the inner wall of the feed pipe, turn the screw. The rotation of the screw will cause the moving block to move inward. The inward movement of the moving block will push the two sliders to move in opposite directions under the action of the second connecting rod until the arc-shaped rubber block on the side of the slider is completely in contact with the inner wall of the feed pipe. At this time, the friction between the arc-shaped rubber block and the feed pipe will fix the filter plate to the inside of the air outlet pipe. The threaded connection between the moving block and the screw has self-locking properties, so that the screw will not rotate on its own when no external force is applied. When the filter plate needs to be disassembled, simply turn the screw in the opposite direction to separate the arc-shaped rubber block from the inner wall of the feed pipe, and the filter plate can be removed as a whole. The operation is simple, time-saving and labor-saving.

[0019] 3. In summary, the stirring component of this constant pressure feeding device for the production of negative electrode adhesive significantly improves the uniformity of the distribution of various components in the negative electrode adhesive and improves product quality; the disassembly and assembly component enables quick replacement of the filter plate, which is simple to operate and saves time and effort. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0021] Figure 2 This is a schematic diagram of the side structure of the feeding pipe of this utility model.

[0022] Figure 3 This is a top view of the material supply pipe of this utility model.

[0023] Figure 4This is a schematic diagram of the internal structure of the storage tank of this utility model.

[0024] Figure 5 This is a schematic diagram of the stirring assembly structure of this utility model.

[0025] Figure 1-5 Components: 1. Base plate; 2. Feed pipe; 3. Top plate; 4. Top cover; 5. Storage tank; 6. Exhaust pipe; 7. Filter plate; 8. Screw; 9. Moving block; 10. Sliding block; 11. Arc-shaped rubber block; 12. Handle; 13. Second connecting rod; 14. Rotating shaft; 15. Drive gear; 16. Driven gear two; 17. Driven gear three; 18. First connecting rod; 19. Connecting plate; 20. Agitator; 21. Driven gear one; 22. Mounting plate. Detailed Implementation

[0026] The following will refer to the appendix in the embodiments of this utility model. Figures 1-5 The technical solutions in the embodiments of this utility model will be clearly and completely described.

[0027] Please see Figure 1-5In this embodiment of the present invention, a constant pressure feeding device for producing negative electrode adhesive includes an upper plate 3 fixedly connected to the upper end of a base plate 1 via connecting columns. The base plate 1 serves as a basic support component, and the upper plate 3 is fixedly connected to it via connecting columns, providing a stable frame structure for the entire device. This structure supports components such as the storage tank 5, ensuring the stability and integrity of the device. The storage tank 5 is located between the base plate 1 and the upper plate 3, with its upper end embedded in the upper plate 3. This design not only securely positions the storage tank 5, utilizing the upper plate 3 for support and positioning, but also facilitates the installation, disassembly, and maintenance of the storage tank 5, while making the spatial layout of the device more rational. A top cover 4 is provided at the upper end of the storage tank 5, sealing it to prevent the raw materials of the negative electrode adhesive from evaporating, becoming contaminated, or reacting with components in the air, ensuring the stability of the raw material quality. It also facilitates the inspection of the interior of the storage tank 5. In operation, the upper surface of the storage tank 5 is connected to the exhaust pipe 6 via an exhaust valve. When the pressure inside the storage tank 5 is too high, the exhaust valve opens, and the gas is discharged through the exhaust pipe 6, thus relieving pressure. An agitator is installed inside the storage tank 5 to agitate the negative electrode adhesive raw material, overcoming the layered structure caused by differences in the density of each component, ensuring thorough mixing of the components, and improving the uniformity of the negative electrode adhesive component distribution. A filter plate 7 is installed inside the feeding pipe 2 to filter impurities in the negative electrode adhesive raw material, ensuring the purity of the raw material delivered to subsequent production equipment and preventing impurities from affecting product quality. A disassembly assembly is installed between the inner wall of the feeding pipe 2 and the filter plate 7, facilitating the installation and removal of the filter plate 7. When the filter plate 7 needs cleaning or replacement, the disassembly assembly allows for quick and convenient operation, improving work efficiency.

[0028] The stirring assembly includes a rotating shaft 14 rotatably connected to the upper cover 4. The rotating shaft 14 is rotatably connected to the upper cover 4, allowing it to rotate freely under the support of the upper cover 4, transmitting power from the motor to the rotating shaft 14. A mounting plate 22 is fixedly connected to the lower end of the rotating shaft 14, rotating with the rotating shaft 14. This mounting plate 22 is used to install and fix the drive gear 15 and other related components, and also drives the entire stirring paddle 20 to stir around the rotating shaft 14, expanding the stirring range. The drive gear 15 is fixedly connected to the outer surface of the rotating shaft 14. When the rotating shaft 14 rotates, the drive gear 15 rotates accordingly. As the starting component for power transmission, the driven gear 21 meshes with the driven gear 21 to transmit power to subsequent gear assemblies, achieving multi-center stirring. The driven gear 21 is meshed with the driving gear 15, receiving power from the driving gear 15 and rotating. Its position is distributed above the three corners of the mounting plate 22, allowing the stirring paddle 20 to not only rotate around the shaft 14 but also stir around the center of the driven gear 21, increasing the diversity and effectiveness of stirring. A first connecting rod 18 is fixedly connected to the lower end of the driven gear 21, serving to drive the driven gear 21... The rotation of the first connecting rod 18 is transmitted to the driven gear 16 below, serving to connect and transmit power. The driven gear 16 is fixedly connected to the lower end of the first connecting rod 18. Driven by the first connecting rod 18, the driven gear 16 rotates, further transmitting power, and meshes with the driven gear 17, providing more rotation centers for the stirring paddle 20 and enhancing the stirring effect. The driven gear 17 is meshed with the outer side of the driven gear 16. The driven gear 17 receives the power transmitted by the driven gear 16 and rotates, thereby driving the connecting plate 19 and the stirring paddle 20 to stir around the center of the driven gear 16. The motion trajectory of the stirring paddle 20 is enriched to improve the uniformity of mixing. The lower end of the driven gear 3 17 is fixedly connected to the connecting plate 19 through the fixing rod. The connecting plate 19 is fixedly connected to the lower end of the driven gear 3 17 through the fixing rod, which transmits the rotation of the driven gear 3 17 to the stirring paddle 20. At the same time, it plays the role of fixing and supporting the stirring paddle 20, improving the stability of the stirring paddle 20 during the mixing process. The stirring paddle 20 is set at the lower end of the connecting plate 19. Driven by each gear, the stirring paddle 20 performs multi-center mixing motion to stir the negative electrode adhesive raw material in the storage tank 5, so that the components in the raw material are fully mixed, improving the mixing uniformity and improving the product quality.

[0029] The assembly and disassembly components include a screw 8 rotatably connected to the outer side of the filter plate 7. The screw 8 rotatably connects to the outer side of the filter plate 7, allowing it to rotate relative to the filter plate 7. This provides the possibility for moving the movable block 9 via the rotation of the screw 8, making it a key component for fixing and disassembling the filter plate 7. The movable block 9 is threadedly connected to the outer surface of the screw 8. When the screw 8 rotates, the movable block 9 moves along the axial direction of the screw 8 due to the thread. This movement of the movable block 9 drives other components, thereby fixing and disassembling the filter plate 7. Slider blocks 10 are located at both ends of the outer surface of the filter plate 7. These sliders provide guidance for the installation of the filter plate 7 within the feeding pipe 2, ensuring accurate placement. The inner sides of the sliders 10 are connected to second connecting rods 13 via hinges. These second connecting rods 13 are connected to the inner sides of the sliders 10 via hinges. The connection method allows the second connecting rod 13 to rotate within a certain range. When the moving block 9 moves, the rotation of the second connecting rod 13 pushes the slider 10 to slide in the groove on the inner wall of the feeding pipe 2, thereby causing the arc-shaped rubber block 11 on the outer side of the slider 10 to fit or separate from the inner wall of the feeding pipe 2, thus fixing and disassembling the filter plate 7. The arc-shaped rubber blocks 11 connected to both ends of the outer side of the slider 10 are connected to both ends of the outer side of the slider 10. When the slider 10 moves under the push of the second connecting rod 13, the arc-shaped rubber blocks 11 will fit tightly against the inner wall of the feeding pipe 2. The friction between the rubber blocks and the inner wall of the pipe is used to fix the filter plate 7 in the feeding pipe 2, preventing the filter plate 7 from moving or loosening during operation. A handle 12 is provided on one side of the outer surface of the filter plate 7. The handle 12 is located on one side of the outer surface of the filter plate 7, which makes it convenient for the operator to hold the handle 12 to install or disassemble the filter plate 7, providing a point of leverage for operation, making the operation more convenient and labor-saving.

[0030] In this embodiment of the invention, a drive gear 15 is provided on the upper end of the mounting plate 22. The mounting plate 22 provides a carrier for the drive gear 15, allowing it to be stably positioned in a specific location, facilitating its cooperation with the rotating shaft 14 and other components. The drive gear 15 is fixedly connected to the outer surface of the rotating shaft 14. This connection method allows the drive gear 15 to rotate synchronously with the rotating shaft 14, effectively transmitting the power of the rotating shaft 14 to the drive gear 15, thereby starting the operation of the entire stirring assembly. This is a key connection part for realizing power transmission. The drive gear 15 is meshed with a driven gear 21. The meshing connection between the drive gear 15 and the driven gear 21 realizes the transmission and conversion of power. When the drive gear 15 rotates, it drives the driven gear 21 to rotate, enabling the stirring paddle 20 to obtain movement in different directions and modes, thereby improving the stirring effect and increasing the diversity of stirring. Three driven gears 21 are provided, located above the three corners of the mounting plate 22. This arrangement allows the stirring paddle 20 to rotate around the center of the shaft 14 while also rotating around the center of each of the three driven gears 21, forming a multi-center stirring mode. This expands the stirring coverage, more effectively breaks down the layered structure caused by the density differences of the components, and improves the uniformity of the distribution of the components of the negative electrode adhesive. A first connecting rod 18 is fixedly connected to the lower end of the driven gear 21, which serves to connect and transmit power. The rotation of the driven gear 21 is transmitted to the driven gear 16 below, improving the continuity of power transmission between the components of the stirring assembly and enabling the stirring paddle 20 to perform stirring work according to the expected multi-center motion mode.

[0031] In this embodiment of the present invention, a driven gear 16 is fixedly connected to the lower end of the mounting plate 22 via a first connecting rod 18. The first connecting rod 18 penetrates the mounting plate 22 and is fixedly connected to the driven gear 16, thus transmitting the power of the driven gear 11 downwards to the driven gear 16. This allows the driven gear 16 to rotate along with the driven gear 11, thereby driving the subsequent driven gear 3 17 and the stirring paddle 20 to move. This improves the continuity and stability of the power transmission of the stirring assembly and helps to achieve a multi-center stirring mode. A limit block is provided at the upper end of the mounting plate 22. The limit block is fixedly connected to the outer surface of the first connecting rod 18. The limit block is fixed to the outer surface of the first connecting rod 18 and located at the upper end of the mounting plate 22. Its function is... This restricts the axial movement range of the first connecting rod 18, preventing it from detaching from the mounting plate 22 during rotation. This stabilizes the relative position between the first connecting rod 18 and the mounting plate 22, ensuring proper assembly and normal operation of the various components of the mixing assembly. The first connecting rod 18 is rotatably connected to the mounting plate 22, allowing it to rotate freely relative to the mounting plate 22. When the driven gear 11 drives the first connecting rod 18 to rotate, the first connecting rod 18 can rotate flexibly on the mounting plate 22, thereby driving the driven gear 26 to rotate, achieving effective power transmission. Simultaneously, it allows the mixing paddle 20 to perform mixing motions around different centers, improving the mixing effect.

[0032] In this embodiment of the present invention, a driven gear 16 is fixedly connected to the lower end of the mounting plate 22 through the first connecting rod 18, realizing the power transmission between the driven gear 1 21 and the driven gear 16, so that the driven gear 16 can rotate with the rotation of the driven gear 1 21, thereby driving the subsequent stirring components to move, ensuring that the multi-center stirring function of the stirring assembly is realized. A limit block is provided at the upper end of the mounting plate 22, and the limit block is fixedly connected to the outer surface of the first connecting rod 18, restricting the axial movement of the first connecting rod 18, ensuring that the first connecting rod 18 will not detach from the mounting plate 22 during rotation, maintaining the relative position stability between the components of the stirring assembly, and ensuring the normal progress of the stirring process. The first connecting rod 18 is rotatably connected to the mounting plate 22, allowing the first connecting rod 18 to rotate freely on the mounting plate 22, so that the rotation of the driven gear 1 21 can be smoothly transmitted to the driven gear 16, and at the same time providing different rotation centers for the stirring paddle 20, enhancing the stirring effect.

[0033] In this embodiment of the invention, a driven gear three 17 is meshed with the outer side of the driven gear two 16. The meshing connection between the driven gear two 16 and the driven gear three 17 realizes the retransmission and conversion of power. When the driven gear two 16 rotates, it drives the driven gear three 17 to rotate, further enriching the movement mode of the stirring paddle 20. This allows the stirring paddle 20 to rotate not only around the center of the rotating shaft 14 and the center of the driven gear one 21, but also around the center of the driven gear two 16, enhancing the diversity and comprehensiveness of the stirring and more effectively mixing the various components of the negative electrode adhesive. The lower end of the driven gear three 17 is fixedly connected to a connecting plate 19 through a connecting block. The connecting block drives the driven gear three 17 and the connecting plate 19 to the connecting plate 19. The connecting plate 19 is fixedly connected and serves to transmit power and provide support. It transmits the rotation of the driven gear 3 17 to the connecting plate 19, allowing the connecting plate 19 to rotate together with the driven gear 3 17. The stirring paddle 20 is fixedly connected to the lower outer side of the connecting plate 19. The fixed connection between the connecting plate 19 and the stirring paddle 20 transmits the rotation of the connecting plate 19 to the stirring paddle 20, allowing the stirring paddle 20 to move in the same manner as the rotation of the driven gear 3 17. This connection method can improve the stability and reliability of the stirring paddle 20 during the stirring process, enabling the stirring paddle 20 to effectively stir the negative electrode adhesive in the storage tank, improve the stirring effect, and ensure that the components of the negative electrode adhesive are evenly distributed.

[0034] In this embodiment of the utility model, a screw 8 is rotatably connected to the outer side of the filter plate 7. The screw 8 is rotatably connected to the outer side of the filter plate 7, allowing the screw 8 to rotate freely relative to the filter plate 7 around its own axis. This provides the basis for driving other components through the rotation of the screw 8, and is the power input method for the entire assembly to function. A moving block 9 is threadedly connected to the outer surface of the screw 8. The moving block 9 is threadedly connected to the screw 8. When the screw 8 rotates, the moving block 9 will move along the axial direction of the screw 8 using the principle of thread transmission. This connection method converts the rotational motion of the screw 8 into the linear motion of the moving block 9, which is the key transmission link for fixing and disassembling the filter plate. A slider 10 is slidably connected inside the grooves opened at both ends of the outer surface of the filter plate 7. The grooves at both ends of the outer surface of the filter plate 7 provide a sliding track for the slider 10, allowing the slider 10 to slide in a specific direction within the grooves. This design provides a sliding track for the slider 10. The surface ensures the stability and directionality of the slider 10's movement. The inner side of the slider 10 is connected to the second connecting rod 13 via hinges. The slider 10 and the second connecting rod 13 are connected by hinges, allowing the second connecting rod 13 to rotate relative to the slider 10 within a certain range. This connection method allows the slider 10 to slide within the groove through the rotation of the second connecting rod 13 when the moving block 9 moves, realizing the transmission of force and the conversion of motion. It is the key structure connecting the moving block 9 and the slider 10 and enabling them to work together. The other end of the second connecting rod 13 is connected to the moving block 9 via hinges. The second connecting rod 13 and the moving block 9 are connected by hinges, ensuring that the second connecting rod 13 can rotate with the movement of the moving block 9, while effectively transmitting the linear motion of the moving block 9 to the slider 10. Through this connection method, the movement of the moving block 9 is used to control the movement of the slider 10, thereby achieving the purpose of fixing or disassembling the filter plate 7.

[0035] In this embodiment of the utility model, the two outer ends of the slider 10 are respectively connected to arc-shaped rubber blocks 11 through connecting blocks. When the slider 10 is pushed by the second connecting rod 13 to move in the groove, the arc-shaped rubber blocks 11 will fit tightly against the inner wall of the feeding pipe 2. Since the rubber blocks have a certain elasticity, they can increase the friction with the inner wall of the pipe, thereby fixing the filter plate 7 firmly inside the feeding pipe 2 and preventing it from shifting during operation. A handle 12 is provided on one side of the outer surface of the filter plate 7 to provide a handhold for the operator, making it convenient for the operator to put the filter plate 7 into or take it out of the feeding pipe 2, making the installation and disassembly of the filter plate 7 more convenient and labor-saving.

[0036] Working Principle: First, the device is moved to a suitable position using casters. The raw material for the negative electrode adhesive is stored in a sealed storage tank 5. Before feeding begins, a suitable pressure value is set through the control system according to the production process requirements. Then, the pressurization equipment is activated to inject gas into the storage tank 5, causing the pressure inside the storage tank 5 to rise to the set value. At this time, the pressure sensor monitors the pressure inside the storage tank 5 in real time and feeds the pressure signal back to the control system to ensure that the pressure reaches the predetermined value. Once the pressure inside the storage tank 5 reaches the set value, the feeding pump is activated. The feeding pump delivers the negative electrode adhesive from the storage tank 5 according to the preset flow parameters. The raw material is extracted and transported to the subsequent production equipment through the feeding pipe 2. During the feeding process, the pressure sensor continuously monitors the pressure in the storage tank 5 or the feeding pipe 2. Once the pressure changes, the pressure sensor will immediately convert the changing pressure signal into an electrical signal and transmit it to the control system. If the actual pressure is higher than the set pressure, the control system will issue a command to open the exhaust valve, and some gas will be released through the exhaust pipe 6 to reduce the system pressure and restore it to the set value. If the actual pressure is lower than the set pressure, the control system will start the booster equipment to replenish the gas in the system and increase the pressure to the set value.

[0037] When the motor is started, the rotating shaft 14 begins to rotate, simultaneously driving the mounting plate 22 and the drive gear 15 to rotate together. The rotation of the mounting plate 22 causes the entire stirring paddle to stir around the rotating shaft 14. At the same time, the rotation of the drive gear 15 transmits power sequentially, driving the driven gear 1 21 to rotate, which in turn drives the driven gear 2 16, which in turn drives the driven gear 3 17. Under this series of transmission actions, the movement of the stirring paddle 20 becomes more diverse. It can not only stir around the rotating shaft 14, but also stir around the centers of the driven gears 1 21 and 2 16 respectively, greatly expanding the coverage area of ​​the stirring paddle 20. Under the action of different movement trajectories, the stirring paddle 20 can perform more comprehensive and in-depth stirring of the negative electrode adhesive, effectively overcoming the stratification problem caused by the density difference of each component. This allows the denser inorganic filler and the less dense organic polymer matrix to be fully mixed, significantly improving the mixing of each component in the negative electrode adhesive. The uniformity of the distribution improves product quality. When a new filter plate 7 needs to be replaced, hold the handle on the filter plate 7 to be replaced and place the filter plate 7 into the feed pipe 2. When the outer periphery of the filter plate 7 is in contact with the inner wall of the feed pipe 2, turn the screw 8. The rotation of the screw 8 will cause the moving block 9 to move inward. The inward movement of the moving block 9 will push the two sliders 10 to move in opposite directions under the action of the second connecting rod 13 until the arc-shaped rubber block 11 on the side of the slider 10 is completely in contact with the inner wall of the feed pipe 2. At this time, the friction between the arc-shaped rubber block 11 and the feed pipe 2 can fix the filter plate 7 to the inside of the feed pipe 2. The threaded connection between the moving block 9 and the screw 8 has self-locking properties, so that the screw 8 will not rotate on its own when there is no external force. When the filter plate 7 needs to be disassembled, simply turn the screw 8 in the opposite direction to separate the arc-shaped rubber block 11 from the inner wall of the feed pipe 2 to remove the filter plate 7 as a whole. The operation is simple, time-saving and labor-saving.

Claims

1. A constant pressure feeding device for producing negative electrode adhesive, comprising: The bottom plate (1), the top plate (3), and the storage tank (5) are characterized in that: the top plate (3) is fixedly connected to the upper end of the bottom plate (1) by a connecting column, the storage tank (5) is located between the bottom plate (1) and the top plate (3), the upper end of the storage tank (5) is embedded and connected to the top plate (3), the upper end of the storage tank (5) is provided with a top cover (4), the upper surface of the storage tank (5) is connected to an exhaust pipe (6) by an exhaust valve, the storage tank (5) is provided with a stirring assembly inside, the lower end of the storage tank (5) is connected to a feeding pipe (2) by a feeding pump, the feeding pipe (2) is provided with a filter plate (7) inside, and a disassembly assembly is provided between the inner wall of the feeding pipe (2) and the filter plate (7); The stirring assembly includes a rotating shaft (14) rotatably connected to the upper cover (4), a mounting plate (22) fixedly connected to the lower end of the rotating shaft (14), a driving gear (15) fixedly connected to the outer surface of the rotating shaft (14), a driven gear one (21) meshing with the driving gear (15), a first connecting rod (18) fixedly connected to the lower end of the driven gear one (21), a driven gear two (16) fixedly connected to the lower end of the first connecting rod (18), a driven gear three (17) meshing with the outer side of the driven gear two (16), a connecting plate (19) fixedly connected to the lower end of the driven gear three (17) by a fixing rod, and a stirring paddle (20) provided at the lower end of the connecting plate (19). The assembly includes a screw (8) rotatably connected to the outer side of the filter plate (7), a moving block (9) threadedly connected to the outer surface of the screw (8), sliders (10) provided at both ends of the outer surface of the filter plate (7), a second connecting rod (13) connected to the inner side of the slider (10) by a hinge, an arc-shaped rubber block (11) connected to both ends of the outer side of the slider (10), and a handle (12) provided on one side of the outer surface of the filter plate (7).

2. The constant pressure feeding device for producing negative electrode adhesive according to claim 1, characterized in that: The lower end of the upper cover (4) is rotatably connected to a rotating shaft (14), the upper end of the rotating shaft (14) is connected to a motor, the output end of the motor is fixedly connected to the rotating shaft (14), the motor is fixedly installed on the upper end of the upper cover (4), and the lower end of the rotating shaft (14) is fixedly connected to a mounting plate (22), the mounting plate (22) is set in a triangular shape.

3. The constant pressure feeding device for producing negative electrode adhesive according to claim 1, characterized in that: The upper end of the mounting plate (22) is provided with a drive gear (15), which is fixedly connected to the outer surface of the rotating shaft (14). The drive gear (15) is meshed with a driven gear (21). There are three driven gears (21), which are located above the three corners of the mounting plate (22). The lower end of the driven gear (21) is fixedly connected with a first connecting rod (18).

4. The constant pressure feeding device for producing negative electrode adhesive according to claim 3, characterized in that: The first connecting rod (18) is fixedly connected to the driven gear (16) at the lower end of the mounting plate (22). The upper end of the mounting plate (22) is provided with a limit block, which is fixedly connected to the outer surface of the first connecting rod (18). The first connecting rod (18) is rotatably connected to the mounting plate (22).

5. A constant pressure feeding device for producing negative electrode adhesive according to claim 1, characterized in that: The driven gear two (16) is meshed with a driven gear three (17) on its outer side. The lower end of the driven gear three (17) is fixedly connected to a connecting plate (19) via a connecting block. The lower outer side of the connecting plate (19) is fixedly connected to a stirring paddle (20).

6. The constant pressure feeding device for producing negative electrode adhesive according to claim 1, characterized in that: The filter plate (7) is rotatably connected to a screw (8), and a moving block (9) is threadedly connected to the outer surface of the screw (8). A slider (10) is slidably connected inside the grooves opened at both ends of the outer surface of the filter plate (7). The inner side of the slider (10) is connected to a second connecting rod (13) by a hinge. The other end of the second connecting rod (13) is connected to the moving block (9) by a hinge.

7. A constant pressure feeding device for producing negative electrode adhesive according to claim 1, characterized in that: The slider (10) has arc-shaped rubber blocks (11) connected to its outer ends by connecting blocks, and a handle (12) is provided on one side of the outer surface of the filter plate (7).

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