A lead-carbon energy storage battery electrode coating device

Abstract

This invention relates to the field of battery electrode coating technology, specifically to a lead-carbon energy storage battery electrode coating device, comprising a machine body, a spray pipe installed on the top of the machine body, and a first pressure roller and a second pressure roller arranged sequentially below the spray pipe. The first and second pressure rollers are covered with polyester cloth, and both ends of the first and second pressure rollers are connected to a rotating assembly. The rotating assembly is limited by a fixing frame connected through a circular hole, and the fixing frame is fixed to the outer wall of the machine body. The rotating assembly includes a reciprocating motor, a rotating frame, and a limiting structure. Through the design of the rotating assembly and the power assembly, this invention enables the rotating frame to reciprocate 180°, allowing the first and second pressure rollers to change position vertically. This reduces the loss of the polyester cloth on the upper pressure roller due to its higher sulfuric acid content, reduces the difference in sulfuric acid content caused by the position of the pressure rollers, reduces the problem of poor acid saturation on the electrode plate surface, and improves the manufacturing quality of the electrode plates.

Description

Technical Field

[0001] This invention relates to the field of battery electrode coating technology, specifically to a lead-carbon energy storage battery electrode coating device. Background Technology

[0002] Lead-acid battery plates are mainly composed of lead and lead alloys. Positive plates are typically made of pure lead, while negative plates are made of lead alloys. This is because pure lead has good electrical conductivity, which improves the discharge capacity of the positive electrode, while lead alloys reduce the self-corrosion tendency of the negative electrode, extending the battery's lifespan. The coating process for flat, paste-coated plates involves: applying lead paste → correction → acid leaching, etc. During battery plate manufacturing, the coated plates need to be rolled and corrected again using acid-leaching rollers, and a layer of sulfuric acid is applied to the surface of the lead paste to complete the coating process.

[0003] The roller is covered with polyester cloth, and an acid leaching tube is installed on it for acid leaching. The purpose of acid leaching is to form a thin layer of lead sulfate on the surface of the electrode lead paste, so as to prevent the electrode surfaces from sticking together after drying and to avoid cracks on the electrode surface.

[0004] Existing technologies typically involve a polyester cloth covering a pressure roller with an acid-leaching tank on it. Sulfuric acid flows through the acid outlet at the bottom of the tank onto the polyester cloth to wet it. When the pressure roller rolls and corrects the coated electrode plate, it can press the sulfuric acid on the polyester cloth onto the lead paste surface of the electrode plate.

[0005] Chinese patent CN105810882B discloses a pneumatic roller press for coating battery plates, including a drive wheel and a driven wheel that roll with a clearance fit, and an adjustment device for adjusting the size of the clearance between the drive wheel and the driven wheel.

[0006] Chinese patent CN109411698A discloses a battery coating flow adjustable acid leaching device, in which pressure rollers are located directly below the acid outlets of each acid leaching branch pipe, and a drive wheel is positioned below the pressure rollers. This invention can close excess acid pipes according to the width of the electrode plates, and can also adjust the amount of acid leaching, ensuring the acid saturation of the electrode plate surface and the product quality.

[0007] Chinese Patent Publication No. CN209675396U discloses a device for preventing clogging of lead-carbon battery electrode plate coatings by acid leaching. The device includes a frame, an active pressure roller, a driven pressure roller, and an acid leaching mechanism. The driven pressure roller is parallel to the active pressure roller and rotatably connected to the frame, with a preset distance between them. The bottom of the electrolyte reservoir has a vertically downward-facing acid outlet hole directly opposite the top of the driven pressure roller. This invention effectively prevents clogging of the acid outlet hole in the acid leaching tank, thereby ensuring uniform acid leaching on the lead paste surface of the electrode plates and guaranteeing electrode plate quality.

[0008] The aforementioned and similar existing technologies can, to some extent, solve the problem of uniformity in acid application on the surface of the lead paste on the electrode plate and improve the utilization rate of sulfuric acid. However, in the existing technology, the active and driven pressure rollers are always in an upper and lower position. This inevitably leads to a greater sulfuric acid content on the upper pressure roller than on the lower pressure roller. This is not only detrimental to the uniformity of sulfuric acid coating on the electrode plate, but also causes the polyester cloth on the outer sleeve of the upper pressure roller to be corroded by acid more quickly in the long run. This results in greater wear and tear, requiring frequent replacement of the polyester cloth, which wastes resources and increases the workload, affecting coating efficiency. The polyester cloth with damaged polyester fibers will have reduced acid coating effect and uniformity, which can easily lead to poor acid saturation on the electrode plate surface and affect the quality of the electrode plate.

[0009] Therefore, the present invention provides a lead-carbon energy storage battery electrode coating device that enables a more uniform acid coating process for the electrode plates and minimizes the loss difference between the upper and lower polyester fabrics. Summary of the Invention

[0010] To address the problems in existing technologies, such as the fixed position of the pressure roller leading to poor uniformity of sulfuric acid coating and faster acid corrosion of the polyester fabric on the outer sleeve of the upper pressure roller, a lead-carbon energy storage battery electrode plate coating device was designed.

[0011] The technical solution adopted by this invention to solve its technical problem is: a lead-carbon energy storage battery electrode plate coating device, including a machine body and a spray pipe set on the top of the machine body. A first pressure roller and a second pressure roller are arranged sequentially below the spray pipe. The first and second pressure rollers are covered with polyester cloth. Both ends of the first and second pressure rollers are connected to a turning component. The turning component is limited by a fixed frame connected through a round hole. The fixed frame is fixed to the outer wall of the machine body. The turning component includes a reciprocating motor, a rotating frame and a limiting structure. The reciprocating motor is fixed to the outer wall of the fixed frame. The output shaft end of the reciprocating motor is fixed to the rotating frame through a coupling. The rotating frame is connected to the first and second pressure rollers respectively through the limiting structure. A limiting structure is assembled to adjust the distance between the first pressure roller and the second pressure roller, and to limit the first pressure roller and the second pressure roller after the adjustment is completed; The reversing assembly is assembled to drive the rotating frame to reciprocate at ° by a reciprocating motor. The rotating frame drives the first pressure roller and the second pressure roller to change their positions up and down through a limiting structure, so that the spray pipe can spray sulfuric acid onto the surfaces of the first pressure roller and the second pressure roller respectively. It also includes a power assembly that is provided at both ends of the first and second pressure rollers. The power assembly is located on one side of the rotating frame and is configured to provide power to drive the first and second pressure rollers to rotate in opposite directions. When the turning assembly changes the vertical position of the first and second pressure rollers, it can change the direction of the first and second pressure rollers as the position changes.

[0012] Furthermore, the limiting structure is axially symmetrical and includes a threaded rod, two limiting sliders, and two connecting shafts. The two limiting sliders are axially symmetrically installed and slidably engaged inside the rotating frame. Each limiting slider is rotatably connected to a connecting shaft in the middle. One connecting shaft is welded to the side wall of the first pressure roller shaft, and the other connecting shaft is welded to the side wall of the second pressure roller shaft. The two limiting sliders are threaded to the same threaded rod on one side. The threaded part of the threaded rod is axially symmetrically designed, and the threaded rod is rotatably engaged in the middle of the rotating frame.

[0013] Furthermore, each power assembly includes two worm gears, a worm, two fixed blocks, and a drive motor. The two fixed blocks are respectively fixed to the upper and lower ends of the rotating frame away from the threaded rod. A worm is rotatably connected between the two fixed blocks. The helical teeth of the worm are designed with axisymmetrical features. The two worm gears are respectively symmetrically fixed to the connecting shaft at the same end of the first and second pressure rollers. Both worm gears mesh with the helical teeth of the worm. The drive motor is fixed to the side wall of one of the fixed blocks, and the output shaft of the drive motor is fixedly connected to the worm.

[0014] Furthermore, an acid storage tank is provided at the bottom of the machine body, and circular holes are provided on both sides of the machine body. An acid injection component is provided inside each of the circular holes, and a filter component is provided below each of the circular holes. An outer cover for protection is also provided on both sides of the machine body. The acid injection component is assembled to drive the first pressure roller and the second pressure roller to change their positions up and down with the adjustment component, and to automatically extract and spray sulfuric acid in conjunction with the spray pipe.

[0015] Furthermore, the acid injection assembly includes an acid storage tube, a squeezing tube, a limiting clip, an acid outlet tube, an acid inlet tube, and a connecting tube. One end of the squeezing tube is fixed to the side wall of a fixed block away from the drive motor, and the other end of the squeezing tube is slidably connected to the acid storage tube. The outer wall of the acid storage tube is fixed to the inner wall of a circular hole by multiple limiting clips. The acid storage tube and the squeezing tube are circular in shape, and the top of the acid storage tube is connected to the connecting tube. The top of the connecting tube is connected to the acid outlet tube and the acid inlet tube, respectively. The acid outlet tube is connected to the spray pipe, and the bottom of the acid inlet tube is connected to the inside of the filter assembly.

[0016] Furthermore, both the acid outlet pipe and the acid inlet pipe are equipped with solenoid valves, and the connecting pipe, the acid outlet pipe, and the acid inlet pipe are all fixed inside the side wall of the machine body.

[0017] Furthermore, the filtration assembly includes a filtration tank, a connecting port, and a filter plate. The connecting port is located below the circular hole, and multiple locking blocks are provided on the outside of the connecting port. The filter plate is locked inside the locking blocks. The filtration tank is fixed to the outside of the machine body, and both the connecting port and the filter plate are located inside the filtration tank. The bottom of the acid inlet pipe extends into the bottom of the filtration tank.

[0018] Furthermore, acid-resistant shells are respectively installed at both ends of the first and second pressure rollers. The acid-resistant shells are tightly attached to the inner wall of the machine body and are rotatably connected to the connecting shaft. The threaded rod is rotatably and sealingly connected to the acid-resistant shell. An adjusting bolt is fixed at one end of the threaded rod. The acid-resistant shell is divided into an inner shell and an outer shell. The inner shell is slidably and sealingly connected to the outer shell.

[0019] Furthermore, both the drive motor and the reciprocating motor are electrically connected to a controller, and the solenoid valve is electrically connected to the controller.

[0020] The beneficial effects of this invention are: (1) The lead-carbon energy storage battery electrode coating device of the present invention adopts the design of two sets of rotating components and power components. The rotating frame is driven by a reciprocating motor to rotate 180°, so that the first pressure roller and the second pressure roller change their positions. The spray pipe can spray sulfuric acid onto the surface of the pressure roller respectively, so as to reduce the loss of the polyester cloth of the upper pressure roller due to the higher sulfuric acid content. In addition, during the rotation of the pressure roller along the coupling, the first pressure roller and the second pressure roller can also rotate under the action of the power mechanism, so as to spray sulfuric acid evenly onto the polyester cloth surface of the first pressure roller and the second pressure roller driven by the motor. This reduces the difference in sulfuric acid content caused by the position of the pressure roller, reduces the problem of poor acid saturation on the electrode plate surface, and also improves the manufacturing quality of the electrode plate.

[0021] (2) The lead-carbon energy storage battery plate coating device of the present invention adopts the linkage of the acid injection component and the reversing component, so that when the reciprocating motor rotates back and forth, in conjunction with the use of the solenoid valve, the acid storage tube and the extrusion tube on one side of the machine body can be compressed to complete the spraying of sulfuric acid, while the acid storage tube and the extrusion tube on the other side of the machine body are stretched to reduce the internal pressure of the acid storage tube, thereby completing the absorption of sulfuric acid, achieving the effect of automatic absorption and spraying of sulfuric acid. Attached Figure Description

[0022] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0023] Figure 1 A schematic diagram of the overall structure of a lead-carbon energy storage battery electrode coating device provided by the present invention; Figure 2 A schematic diagram of the internal structure of the acid-resistant shell of a lead-carbon energy storage battery electrode plate coating device provided by the present invention; Figure 3 A schematic diagram showing the first and second pressure rollers rotated 90° according to the present invention; Figure 4 A schematic diagram of the connection structure between the power assembly and the acid injection assembly provided by the present invention; Figure 5 A schematic diagram of the first and second pressure rollers rotating 180° as provided in this invention; Figure 6 A schematic diagram of the connection structure between the turning component and the power component provided by the present invention; Figure 7 A schematic diagram of the connection structure between the switching component and the acid-resistant shell provided by the present invention; Figure 8 This is a schematic diagram of the limiting slider structure provided by the present invention; Figure 9 A schematic diagram of the limiting structure of a lead-carbon energy storage battery electrode coating device provided by the present invention; Figure 10 This is a schematic diagram of the initial state of the switching component and the acid injection component provided by the present invention.

[0024] In the diagram: 1. Machine body; 2. First pressure roller; 3. Second pressure roller; 4. Spray pipe; 5. Acid storage tank; 6. Reversing assembly; 61. Reciprocating motor; 62. Rotating frame; 63. Coupling; 64. Limiting structure; 641. Threaded rod; 642. Limiting slider; 643. Connecting shaft; 7. Power assembly; 71. Worm gear; 73. Worm; 74. Fixing block; 75. Drive motor; 8. Acid injection assembly; 81. Acid storage pipe; 82. Extrusion pipe; 83. Limiting clip; 84. Acid outlet pipe; 85. Acid inlet pipe; 86. Connecting pipe; 9. Filter assembly; 91. Filter tank; 92. Connecting port; 93. Filter plate; 10. Outer casing; 11. Fixing frame; 12. Acid-proof shell; 13. Round hole. Detailed Implementation

[0025] To make the technical means, creative features, objectives and effects of this invention easier to understand, the invention will be further described below in conjunction with specific embodiments. Example

[0026] like Figures 1-10As shown, the lead-carbon energy storage battery electrode coating device of the present invention includes a body 1, a spray pipe 4 installed on the top of the body 1, a first pressure roller 2 and a second pressure roller 3 arranged sequentially below the spray pipe 4, the first pressure roller 2 and the second pressure roller 3 are covered with polyester cloth, and a turning component 6 is connected to both ends of the first pressure roller 2 and the second pressure roller 3. The turning component 6 is connected to a fixing frame 11 through a round hole 13 for limiting, and the fixing frame 11 is fixed to the outer wall of the body 1; the turning component 6 includes a reciprocating motor 61, a rotating frame 62 and a limiting structure 64, and the reciprocating motor 61 is fixed to the outside of the fixing frame 11. On the side wall, the output shaft of the reciprocating motor 61 is fixed with a rotating frame 62 via a coupling 63. The rotating frame 62 is connected to the first pressure roller 2 and the second pressure roller 3 via a limiting structure 64. The turning assembly 6 is assembled to drive the rotating frame 62 to reciprocate 180° via the reciprocating motor 61. The rotating frame 62 drives the first pressure roller 2 and the second pressure roller 3 to change their vertical position via the limiting structure 64, so that the spray pipe 4 can spray sulfuric acid onto the surfaces of the first pressure roller 2 and the second pressure roller 3 respectively, so as to reduce the loss of the polyester fabric of the upper pressure roller due to the higher sulfuric acid content.

[0027] In this embodiment, the limiting structure 64 is assembled to adjust the distance between the first pressure roller 2 and the second pressure roller 3, and to limit the distance between the first pressure roller 2 and the second pressure roller 3 after adjustment. The limiting structure 64 is axially symmetrical and includes a threaded rod 641, two limiting sliders 642, and two connecting shafts 643. The two limiting sliders 642 are axially symmetrically installed and slidably engaged inside the rotating frame 62. Each limiting slider 642 has a connecting shaft 643 rotatably connected to its middle. One connecting shaft 643 is welded to the side wall of the first pressure roller 2, and the other connecting shaft 643 is welded to the side wall of the second pressure roller 3. The two limiting sliders 642 are threadedly connected to the same threaded rod 641 on one side. The threaded portion of the threaded rod 641 is axially symmetrically designed, and the threaded rod 641 is rotatably engaged. At the center of the rotating frame 62, an adjusting bolt is fixed to one end of the threaded rod 641. When it is necessary to adjust the distance between the first pressure roller 2 and the second pressure roller 3, the adjusting bolts at both ends of the first pressure roller 2 and the second pressure roller 3 are turned simultaneously. The adjusting bolt drives the threaded rod 641 to rotate. The threaded rod 641 drives the limiting slider 642, which is slidably engaged inside the rotating frame 62, to gradually move closer or further away. The limiting slider 642 drives the first pressure roller 2 and the second pressure roller 3 to move closer or further away from each other through the connecting shaft 643. When the threaded rod 641 stops rotating, due to the friction, the limiting slider 642 will stop moving on the threaded rod 641 and will not be affected by external forces, thereby limiting the first pressure roller 2 and the second pressure roller 3. The distance between the two can be adjusted according to the actual situation, making it more versatile.

[0028] In this embodiment, two sets of power components 7 are also included. The power components 7 are disposed on one side of the rotating frame 62 and are configured to provide power to drive the first pressure roller 2 and the second pressure roller 3 to rotate in opposite directions. When the reversing component 6 changes the vertical position of the first pressure roller 2 and the second pressure roller 3, the direction of rotation of the first pressure roller 2 and the second pressure roller 3 can be changed with the position change to ensure that the feeding direction of the battery electrode acid is kept unchanged. Each set of power components 7 includes two worm gears 71, a worm 73, two fixing blocks 74 and a drive motor 75. The two fixing blocks 74 are respectively fixed to the rotating frame 62. At the upper and lower ends of the side away from the threaded rod 641, a worm gear 73 is rotatably connected between two fixed blocks 74. The helical teeth of the worm gear 73 are designed with axisymmetricity, which allows the same worm gear 73 to provide different rotation directions for the two pressure rollers, so as to ensure the feeding and movement of the battery electrode acid. Two worm wheels 71 are symmetrically fixed to the connecting shaft 643 at the same end of the first pressure roller 2 and the second pressure roller 3, respectively. Both worm wheels 71 mesh with the helical teeth of the worm gear 73, and the drive motor 75 is fixed to the side wall of one of the fixed blocks 74. The output shaft of the drive motor 75 is fixedly connected to the worm gear 73.

[0029] Specifically, the bottom of the machine body 1 is provided with an acid storage tank 5, and both sides of the machine body 1 are provided with round holes 13. The round holes 13 are respectively provided with acid injection components 8, and the round holes 13 are respectively provided with filter components 9. The machine body 1 is provided with protective outer shells 10 on both sides. The acid injection components 8 are assembled to drive the first pressure roller 2 and the second pressure roller 3 to change their up and down positions with the adjustment component 6, and cooperate with the spray pipe 4 to automatically extract and spray sulfuric acid without the need for additional power to transport sulfuric acid.

[0030] In this embodiment, the acid injection assembly 8 includes an acid storage tube 81, a squeezing tube 82, a limiting clip 83, an acid outlet tube 84, an acid inlet tube 85, and a connecting tube 86. One end of the squeezing tube 82 is fixed to the side wall of the fixing block 74 away from the drive motor 75, and the other end of the squeezing tube 82 is slidably connected to the acid storage tube 81. The outer wall of the acid storage tube 81 is fixed to the inner wall of the circular hole 13 by multiple limiting clips 83. The acid storage tube 81 and the squeezing tube 82 are circular in shape. The process of squeezing the acid storage tube 81 and pulling out the acid storage tube 81 is similar to the working principle of a syringe. The pressure change inside the acid storage tube 81 is used to realize the function of discharging and absorbing sulfuric acid. The circular design here is more in line with the actual situation of this device. The top of the acid storage tube 81 is connected to the connecting tube 86. The top of the connecting tube 86 is connected to the acid outlet tube 84 and the acid inlet tube 85 respectively. The acid outlet tube 84 is connected to the spray tube 4, and the bottom of the acid inlet tube 85 is connected to the inside of the filter assembly 9.

[0031] In this embodiment, both the acid outlet pipe 84 and the acid inlet pipe 85 are equipped with solenoid valves, which can realize the individual connection of the acid outlet pipe 84, the acid inlet pipe 85 and the connecting pipe 86, and the connecting pipe 86, the acid outlet pipe 84 and the acid inlet pipe 85 are all fixed inside the side wall of the machine body 1.

[0032] Specifically, the filter assembly 9 includes a filter tank 91, a connecting port 92, and a filter plate 93. The connecting port 92 is located below the circular hole 13. Multiple locking blocks are provided on the outside of the connecting port 92, and the filter plate 93 is locked inside the locking blocks. The filter tank 91 is fixed to the outside of the body 1, and both the connecting port 92 and the filter plate 93 are located inside the filter tank 91. The bottom of the acid inlet pipe 85 extends into the bottom of the filter tank 91, reducing the impact of lead sludge and leaving the lead sludge in the acid storage tank 5. The filter plate 93 here is designed to be detachable and replaceable, making the sulfuric acid absorbed by the acid injection assembly 8 cleaner and preventing the pipes of the acid injection assembly 8 from becoming blocked.

[0033] Specifically, acid-resistant shells 12 are installed at both ends of the first pressure roller 2 and the second pressure roller 3 respectively. The acid-resistant shells 12 are tightly attached to the inner wall of the machine body 1 and are rotatably connected to the connecting shaft 643. The threaded rod 641 is rotatably and sealingly connected to the acid-resistant shells 12. The acid-resistant shells 12 are divided into an inner shell and an outer shell. The inner shell slides and is sealed to the outer shell, which can effectively prevent sulfuric acid from splashing onto other structures and causing corrosion during acid leaching. Corrosion-resistant materials can also be used to make the various mechanism parts of this device.

[0034] Specifically, both the drive motor 75 and the reciprocating motor 61 are electrically connected to a controller, and the solenoid valve is electrically connected to the controller.

[0035] Working principle: Initial state reference Figure 2 and Figure 10 When using, place the coated electrode along the edge of the plate. Figure 2 The material is fed into the device between the first pressure roller 2 and the second pressure roller 3 in the middle feeding direction. At the same time, the power of the drive motor 75 of the power assembly 7 on both sides of the machine body 1 is turned on. The drive motor 75 drives the worm 73 to rotate in the forward direction. The worm 73 drives the worm wheel 71. The worm wheel 71 drives the first pressure roller 2 and the second pressure roller 3 to rotate in opposite directions through the connecting shaft 643, which drives the electrode plate to move along the feeding direction. At the same time, the electrode plate is coated with acid. Then the coated electrode plate is taken out.

[0036] After the acid coating process has been completed for a period of time, when the first pressure roller 2 and the second pressure roller 3 need to be rotated to adjust their vertical relationship, two reciprocating motors 61 should be started simultaneously to rotate 180° in the forward direction. The reciprocating motors 61 drive the rotating frame 62 to rotate through the coupling 63, and the rotating frame 62 drives the first pressure roller 2 and the second pressure roller 3 to rotate 180° through the limiting structure 64. The status can be referenced. Figure 2 → Figure 3 → Figure 5 The changes.

[0037] During the rotation of the rotating frame 62, reference Figure 10In the diagram, the fixed block 74 in the right-hand rotating assembly 6 drives the extrusion tube 82 to rotate along the center of the coupling 63 and extrude the acid storage tube 81 on the right. At this time, the controller controls the solenoid valve in the acid outlet tube 84 of the right-hand acid injection assembly 8 to flow, while the solenoid valve in the acid inlet tube 85 does not flow. After the acid storage tube 81 is extruded, the sulfuric acid inside it flows into the spray pipe 4 through the connecting pipe 86 and the acid outlet tube 84. The spray pipe 4 then sprays the sulfuric acid evenly onto the polyester fabric surface of the first pressure roller 2 and the second pressure roller 3 driven by the drive motor 75 through the nozzle. Meanwhile, continue to refer to Figure 10 In the diagram, the fixed block 74 in the left-hand rotating assembly 6 drives the extrusion tube 82 to rotate around the center of the coupling 63 and leave the acid storage tube 81. Meanwhile, the controller controls the solenoid valve in the acid outlet tube 84 of the left-hand acid injection assembly 8 to be closed, while the solenoid valve in the acid inlet tube 85 is open. This reduces the pressure inside the acid storage tube 81, allowing the sulfuric acid in the filter tank 91 to enter the acid storage tube 81 in the left-hand acid injection assembly 8 through the acid inlet tube 85 and connecting pipe 86 for storage, so that it can be sprayed out during the next rotation. When the first pressure roller 2 and the second pressure roller 3 exchange positions (i.e., when the reciprocating motor 61 rotates 180° forward), the controller adjusts the direction of the drive motor 75, causing it to rotate in the opposite direction, thus changing the rotation direction of the first pressure roller 2 and the second pressure roller 3, keeping the feeding direction of the electrode plate unchanged. (See reference...) Figure 5 .

[0038] After the acid coating process has been completed for a period of time, when the first pressure roller 2 and the second pressure roller 3 need to be rotated again to adjust their vertical relationship, the reciprocating motor 61 needs to be started to rotate 180° in the opposite direction. The reciprocating motor 61 drives the rotating frame 62 to rotate through the coupling 63. The rotating frame 62 drives the first pressure roller 2 and the second pressure roller 3 to rotate 180° in the opposite direction through the limiting structure 64. The status can be referenced. Figure 5 → Figure 3 → Figure 2 The changes.

[0039] During the reverse rotation of the rotating frame 62, the fixed block 74 on one side of the machine body 1 will drive the extrusion tube 82 to rotate along the center of the coupling 63 and leave the interior of the acid storage tube 81. At this time, the controller controls the solenoid valve in the acid outlet tube 84 on this side to be closed, while the solenoid valve in the acid inlet tube 85 is open. The pressure inside the acid storage tube 81 decreases, and the sulfuric acid in the filter tank 91 will enter the acid storage tube 81 on this side through the acid inlet tube 85 and the connecting pipe 86 for storage, so that it can be sprayed out during the next rotation. The fixed block 74 on the other side of the machine body 1 will push the extrusion tube 82 to slide into the interior of the acid storage tube 81. At this time, the controller controls the acid outlet tube in the acid injection assembly 8 on this side. The solenoid valve in pipe 84 is open, while the solenoid valve in acid inlet pipe 85 is closed. After the acid storage pipe 81 is compressed, the sulfuric acid inside flows into the spray pipe 4 through the connecting pipe 86 and the acid outlet pipe 84. The spray pipe 4 then sprays the sulfuric acid evenly onto the polyester fabric surface of the first pressure roller 2 and the second pressure roller 3 driven by the drive motor 75 through the nozzles. When the first pressure roller 2 and the second pressure roller 3 exchange their vertical positions, and the reciprocating motor 61 rotates 180° in the opposite direction, the controller adjusts the direction of rotation of the drive motor 75, causing the drive motor 75 to rotate forward and changing the rotation direction of the first pressure roller 2 and the second pressure roller 3, thus keeping the feeding direction of the electrode plate unchanged. (See reference...) Figure 2 .

[0040] When the reciprocating motor 61 of this device rotates back and forth, it can compress the acid injection assembly 8 on one side of the machine body 1 to complete the spraying of sulfuric acid, and at the same time replenish the sulfuric acid to the acid injection assembly 8 on the other side of the machine body 1. (Refer to this device for details.) Figure 2 ( Figure 10 → Figure 3 → Figure 5 and Figure 5 → Figure 3 → Figure 2 ( Figure 10 The process of ).

[0041] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of protection claimed by the present invention. The scope of protection of the present invention is defined by the appended claims and their equivalents.

Claims

1. A lead-carbon energy storage battery electrode coating device, comprising a body (1) and a spray pipe (4) disposed on the top of the body (1), wherein a first pressure roller (2) and a second pressure roller (3) are disposed sequentially below the spray pipe (4), and the first pressure roller (2) and the second pressure roller (3) are covered with polyester cloth, characterized in that: The first pressure roller (2) and the second pressure roller (3) are both connected to a turning assembly (6). The turning assembly (6) is connected to a fixed frame (11) through a round hole (13) for limiting. The fixed frame (11) is fixed to the outer wall of the machine body (1). The turning assembly (6) includes a reciprocating motor (61), a rotating frame (62) and a limiting structure (64). The reciprocating motor (61) is fixed to the outer wall of the fixed frame (11). The output shaft end of the reciprocating motor (61) is fixed to the rotating frame (62) through a coupling (63). The rotating frame (62) is connected to the first pressure roller (2) and the second pressure roller (3) respectively through the limiting structure (64). The limiting structure (64) is assembled to adjust the distance between the first pressure roller (2) and the second pressure roller (3), and to limit the first pressure roller (2) and the second pressure roller (3) after the adjustment is completed; The reversing assembly (6) is assembled to drive the rotating frame (62) to reciprocate 180° via a reciprocating motor (61). The rotating frame (62) drives the first pressure roller (2) and the second pressure roller (3) to change their positions up and down via a limiting structure (64), so that the spray pipe (4) can spray sulfuric acid onto the surfaces of the first pressure roller (2) and the second pressure roller (3) respectively. It also includes a power assembly (7) provided at both ends of the first pressure roller (2) and the second pressure roller (3). The power assembly (7) is provided on one side of the rotating frame (62) and is assembled to provide power to drive the first pressure roller (2) and the second pressure roller (3) to rotate in opposite directions. When the turning assembly (6) changes the position of the first pressure roller (2) and the second pressure roller (3), it can change the direction of the first pressure roller (2) and the second pressure roller (3) with the change of position. Each power assembly (7) includes two fixed blocks (74). Both sides of the machine body (1) are provided with round holes (13). The round holes (13) are respectively provided with acid injection components (8). The acid injection components (8) include an acid storage tube (81), a squeezing tube (82), a limiting card (83), an acid outlet tube (84), an acid inlet tube (85), and a connecting tube (86). One end of the squeezing tube (82) is fixed to the side wall of the fixing block (74) away from the drive motor (75). The other end of the squeezing tube (82) is sealed and slidably connected to the acid storage tube (81). The outer wall of the acid storage tube (81) is fixed to the round hole by multiple limiting cards (83). The inner wall of the hole (13) is circular. The acid storage tube (81) and the extrusion tube (82) are connected to the top of the acid storage tube (81) via a connecting tube (86). The top of the connecting tube (86) is connected to the acid outlet tube (84) and the acid inlet tube (85). The acid outlet tube (84) is connected to the spray tube (4). The bottom of the acid inlet tube (85) is connected to the inside of the filter assembly (9). During the rotation of the rotating frame (62), the fixed block (74) on one side will drive the extrusion tube (82) to rotate along the center of the coupling (63) and extrude the acid storage tube (81).

2. The lead-carbon energy storage battery electrode coating device according to claim 1, characterized in that: The limiting structure (64) is axially symmetrical and includes a threaded rod (641), two limiting sliders (642) and two connecting shafts (643). The two limiting sliders (642) are axially symmetrically installed and slidably engaged inside the rotating frame (62). Each limiting slider (642) is rotatably connected to a connecting shaft (643) in the middle. One connecting shaft (643) is welded to the side wall of the first pressure roller (2) shaft, and the other connecting shaft (643) is welded to the side wall of the second pressure roller (3) shaft. The two limiting sliders (642) are threadedly connected to the same threaded rod (641) on one side. The threaded part of the threaded rod (641) is axially symmetrically designed, and the threaded rod (641) is rotatably engaged in the middle of the rotating frame (62).

3. The lead-carbon energy storage battery electrode coating device according to claim 2, characterized in that: Each power assembly (7) includes two worm gears (71), a worm (73) and a drive motor (75). Two fixed blocks (74) are fixed to the upper and lower ends of the rotating frame (62) away from the threaded rod (641). The worm (73) is rotatably connected between the two fixed blocks (74). The helical teeth of the worm (73) are designed with axisymmetrical features. The two worm gears (71) are symmetrically fixed to the connecting shaft (643) at the same end of the first pressure roller (2) and the second pressure roller (3). Both worm gears (71) mesh with the helical teeth of the worm (73). The drive motor (75) is fixed to the side wall of one of the fixed blocks (74). The output shaft of the drive motor (75) is fixedly connected to the worm (73).

4. The lead-carbon energy storage battery electrode coating device according to claim 3, characterized in that: The bottom of the machine body (1) is provided with an acid storage tank (5), and a filter assembly (9) is provided below the round hole (13). The sides of the machine body (1) are also provided with an outer cover (10) for protection. The acid injection assembly (8) is assembled to drive the first pressure roller (2) and the second pressure roller (3) to change their positions up and down with the adjustment assembly (6), and cooperates with the spray pipe (4) to automatically extract and spray sulfuric acid.

5. The lead-carbon energy storage battery electrode coating device according to claim 1, characterized in that: Solenoid valves are installed inside the acid outlet pipe (84) and the acid inlet pipe (85), and the connecting pipe (86), the acid outlet pipe (84) and the acid inlet pipe (85) are all fixed inside the side wall of the machine body (1).

6. The lead-carbon energy storage battery electrode coating device according to claim 5, characterized in that: The filter assembly (9) includes a filter tank (91), a connecting port (92), and a filter plate (93). The connecting port (92) is located below the circular hole (13). Multiple locking blocks are provided on the outside of the connecting port (92). The filter plate (93) is locked inside the locking blocks. The filter tank (91) is fixed to the outside of the body (1). The connecting port (92) and the filter plate (93) are both located inside the filter tank (91). The bottom of the acid inlet pipe (85) extends into the bottom of the filter tank (91).

7. The lead-carbon energy storage battery electrode coating device according to claim 2, characterized in that: The first pressure roller (2) and the second pressure roller (3) are respectively equipped with acid-resistant shells (12). The acid-resistant shells (12) are tightly attached to the inner wall of the machine body (1), and the acid-resistant shells (12) are rotatably connected to the connecting shaft (643). The threaded rod (641) is rotatably and sealingly connected to the acid-resistant shells (12). One end of the threaded rod (641) is fixed with an adjusting bolt. The acid-resistant shells (12) are divided into an inner shell and an outer shell. The inner shell slides and is sealedly connected to the outer shell.

8. The lead-carbon energy storage battery electrode coating device according to claim 1, characterized in that: Both the drive motor (75) and the reciprocating motor (61) are electrically connected to a controller, and the solenoid valve is electrically connected to the controller.

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