A lead-acid battery processing liquid injection device
By using a combination of a receiving sleeve and a high-pressure drying airflow in the lead-acid battery electrolyte filling device, the problem of residual electrolyte dripping from the filling tube is solved, thus protecting the battery and equipment and improving production stability and equipment lifespan.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- ZHEJIANG TIANNENG POWER ENERGY
- Filing Date
- 2026-05-26
- Publication Date
- 2026-07-28
AI Technical Summary
After the existing lead-acid battery electrolyte filling device is completed, the residual electrolyte in the filling tube can easily drip onto the battery cover, conveyor belt or frame, causing battery surface corrosion, poor appearance, and may even cause micro-short circuits inside the battery, seriously reducing the product yield and accelerating equipment corrosion and aging.
A lead-acid battery processing electrolyte injection device was designed, comprising a transport mechanism, an injection mechanism, and an anti-drip mechanism. By wrapping the injection tube with a receiving sleeve when the injection tube rises and resets, and using a high-pressure dry airflow to blow away the residual electrolyte, the electrolyte is collected from all directions, preventing leakage.
It effectively solved the problem of residual electrolyte leakage in the injection tube, reduced battery and equipment corrosion, lowered product defect rate, extended equipment life and reduced maintenance costs.
Smart Images
Figure CN122474849A_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the technical field of lead-acid battery production and processing, and specifically to a lead-acid battery processing liquid injection device. Background Technology
[0002] Lead-acid batteries are widely used in automobiles, trams, machinery, and other fields due to their advantages such as stable voltage and low price. The electrodes of lead-acid batteries are mainly made of lead and its oxides, and the electrolyte is a sulfuric acid solution. In the production process of lead-acid batteries, the filling of the electrolyte inside the battery is a very important step.
[0003] In the existing technical solution, Chinese patent with authorization announcement number CN216529272U discloses a lead-acid battery electrolyte injection device, including a base, controller, delivery component, injection component, centering component, partition component and infrared detector. The injection component includes a support frame, mounting plate, filling valve, telescopic cylinder, storage tank and pressurizing pump. The telescopic cylinder pushes the filling valve down and inserts it into the battery, and then the pressurizing pump is turned on to pressurize the storage tank, so that the electrolyte in the storage tank is injected into the battery.
[0004] The shortcomings of the existing technical solutions are as follows: After electrolyte injection, during the process of pulling the injection tube out of the battery and resetting it, a small amount of electrolyte often remains at the tip of the injection tube due to the adhesion and surface tension of the electrolyte. Since the injection tube is usually directly exposed to the air, this residual electrolyte can easily drip onto the battery cover, conveyor belt, or frame as the tube moves. This not only leads to battery surface corrosion and poor appearance, but may even cause micro-short circuits inside the battery, severely reducing the product yield; at the same time, the dripping acid accelerates the corrosion and aging of the equipment's transmission components, increasing the equipment's maintenance costs. Summary of the Invention
[0005] This invention provides a lead-acid battery processing electrolyte injection device, which can solve the problem in the prior art where residual electrolyte on the injection tube easily drips onto the battery cover, conveyor belt or frame. This not only leads to battery surface corrosion and poor appearance, but may even cause micro-short circuits inside the battery, seriously reducing the product yield.
[0006] This invention provides a lead-acid battery processing liquid injection device, including a frame, a transport mechanism, an injection mechanism, and an anti-drip mechanism. The transport mechanism includes a conveyor belt, which is horizontally connected to the frame. The injection mechanism includes a lifting platform, an injection head, and an injection pipe. The lifting platform is slidably connected to the frame along the Z-axis. The injection head is mounted on the lifting platform, and the injection pipe is fixedly disposed at the bottom of the injection head and communicates with it. Two sets of anti-drip mechanisms are provided and symmetrically arranged on the conveyor belt. Between the liquid receiving sleeve and the lifting platform, the anti-drip mechanism includes a liquid receiving sleeve. The liquid receiving sleeve is slidably connected to the frame along the Y-axis. The inner side of the liquid receiving sleeve has an air inlet chamber and a liquid receiving chamber. The outer side of the liquid receiving sleeve has a liquid receiving groove with a semi-cylindrical structure. The side of the liquid receiving groove has an air guide groove that communicates with the air inlet chamber. The bottom of the liquid receiving groove has an exhaust groove that communicates with the liquid receiving chamber. The top of the liquid receiving sleeve has an air inlet hole that communicates with the air inlet chamber. The bottom of the liquid receiving sleeve has an exhaust hole that communicates with the liquid receiving chamber.
[0007] According to one embodiment of the present invention, the anti-drip mechanism further includes a connecting frame, the connecting frame being slidably connected to the frame along the Y-axis direction, the injection head being provided in multiple ways and all being slidably connected to the lifting platform along the X-axis direction, and the liquid receiving sleeve being provided in multiple ways and all being slidably connected to the connecting frame along the X-axis direction.
[0008] According to one embodiment of the present invention, the anti-drip mechanism further includes a connecting assembly, which is provided in multiple sets and is connected to the corresponding liquid receiving sleeve. The connecting assembly includes a first rotating plate and a second rotating plate. The middle parts of the first rotating plate and the second rotating plate are rotatably connected to the liquid receiving sleeve around the Y-axis. The top of the first rotating plate is hinged to the top of the second rotating plate on an adjacent liquid receiving sleeve on one side, and the bottom of the first rotating plate is hinged to the bottom of the second rotating plate on an adjacent liquid receiving sleeve on the other side.
[0009] According to one embodiment of the present invention, the anti-drip mechanism further includes a guide shaft, a threaded rod, and a threaded sleeve. The guide shaft is fixedly connected to the connecting frame, and the threaded rod is rotatably connected to the connecting frame. The side of the liquid receiving sleeve is provided with a first sliding hole and a second sliding hole that are slidably connected to the guide shaft and the threaded rod, respectively. Two threaded sleeves are provided and fixedly disposed on the liquid receiving sleeves closest to both ends of the threaded rod. The outer side of the threaded rod is provided with two symmetrically distributed threaded segments with opposite helical directions. The threaded sleeves are threadedly connected to the corresponding threaded segments.
[0010] According to one embodiment of the present invention, the injection mechanism further includes a positioning component, which is provided in multiple sets and connected to the corresponding injection head. The positioning component includes a slide rod, a nut, and a washer. The top of the lifting platform is provided with a sliding groove, the slide rod is slidably connected to the sliding groove, the bottom of the slide rod is fixedly connected to the top of the injection head, the top of the slide rod is provided with a thread that mates with the nut, and the washer is sleeved on the outside of the slide rod and located between the lifting platform and the nut.
[0011] According to one embodiment of the present invention, the anti-drip mechanism further includes a gas cylinder, a valve, a first pipeline, a second pipeline, and an acid mist scrubbing tower. The gas cylinder is filled with high-pressure dry gas. One end of the first pipeline is connected to the gas cylinder, and the other end of the first pipeline is connected to an air inlet. The valve is disposed in the first pipeline. One end of the second pipeline is connected to an exhaust port, and the other end of the second pipeline is connected to the acid mist scrubbing tower.
[0012] According to one embodiment of the present invention, the injection mechanism further includes a storage tank and an injection pump, wherein the input end of the injection pump is connected to the storage tank and the output end of the injection pump is connected to the injection head.
[0013] According to one embodiment of the present invention, the liquid injection mechanism further includes a first telescopic rod, which is fixedly connected to the frame and the telescopic end of the first telescopic rod is fixedly connected to the lifting platform. The anti-drip mechanism further includes a second telescopic rod, which is fixedly connected to the frame and the telescopic end of the second telescopic rod is fixedly connected to the liquid receiving sleeve. Both the first telescopic rod and the second telescopic rod are electric push rods.
[0014] According to one embodiment of the present invention, the anti-drip mechanism further includes a sealing strip and a sealing gasket, a sealing groove is provided on the side of the liquid receiving sleeve, the sealing strip is fixedly disposed in the sealing groove, and the sealing strip has a U-shaped structure, and the sealing gasket is fixedly disposed on the top of the liquid receiving groove.
[0015] According to one embodiment of the present invention, the air guide groove is arranged in an inclined state inside the liquid receiving groove, and a plurality of them are provided and are arranged at equal intervals along the Z-axis direction. The axial direction of the air inlet is tangent to the inner wall of the air inlet chamber, and the axial direction of the exhaust hole is tangent to the inner wall of the liquid receiving chamber.
[0016] The advantages of this invention compared to the prior art are: When the injection mechanism completes injection and the injection tube rises and resets along the Z-axis between the two anti-drip mechanisms, the receiving sleeve slides and closes along the Y-axis, completely enclosing the electrolyte-laden bottom of the injection tube within the receiving tank. At this time, an external high-pressure drying air source enters the air inlet chamber through the air inlet hole, forming a directional airflow along the air guide groove to sweep the surface of the injection tube. The residual electrolyte is blown off and flows with the airflow through the exhaust groove into the receiving chamber, and finally discharged through the exhaust hole. This allows the residual liquid on the surface of the injection tube to be swept away from all directions and collected efficiently, solving the problem of residual liquid dripping after the injection tube rises in traditional injection devices, which leads to electrolyte corrosion of the frame, contamination of the conveyor belt, and battery surface. It also reduces battery casing corrosion, internal electrolyte quantity deviation, and other defects, significantly reducing the product defect rate, while extending equipment life and reducing equipment maintenance costs.
[0017] Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description
[0018] The above and / or additional aspects and advantages of the present invention will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which: Figure 1 This is a three-dimensional structural diagram of a lead-acid battery processing and electrolyte injection device.
[0019] Figure 2 This is a three-dimensional structural diagram of the transportation mechanism in this invention.
[0020] Figure 3 This is a three-dimensional structural diagram of the liquid injection mechanism in this invention.
[0021] Figure 4 This is a three-dimensional structural diagram of the positioning component in this invention.
[0022] Figure 5 This is the present invention. Figure 4 A magnified view of the local structure at point A in the middle.
[0023] Figure 6 This is a three-dimensional structural diagram of the two anti-drip mechanisms combined in this invention.
[0024] Figure 7 This is a three-dimensional structural diagram of the two sets of anti-drip mechanisms in this invention.
[0025] Figure 8 This is a three-dimensional structural diagram of the connecting component in this invention.
[0026] Figure 9 This is a three-dimensional structural cross-sectional view of the liquid receiving tank in this invention.
[0027] Figure 10This is a three-dimensional structural cross-sectional view of the liquid receiving sleeve in this invention.
[0028] The reference numerals in the figures include: 1. Frame; 2. Transport mechanism; 3. Liquid injection mechanism; 4. Anti-drip mechanism; 5. Conveyor belt; 6. Lifting platform; 7. Liquid injection head; 8. Liquid injection pipe; 9. Liquid receiving sleeve; 10. Air inlet chamber; 11. Liquid receiving chamber; 12. Liquid receiving trough; 13. Air guide trough; 14. Air exhaust trough; 15. Air inlet; 16. Air outlet; 17. Connecting frame; 18. Connecting assembly; 19. First rotating plate; 20. Second rotating plate; 21. Guide shaft; 22. Threaded rod; 23. Threaded sleeve; 24. Positioning assembly; 25. Slide rod; 26. Nut; 27. Gasket; 28. Sealing strip; 29. Sealing gasket. Detailed Implementation
[0029] The specific embodiments of the present invention will be described in detail below, but it should be understood that the scope of protection of the present invention is not limited to the specific embodiments.
[0030] like Figures 1 to 10 As shown, a lead-acid battery processing and electrolyte injection device includes a frame 1, a transport mechanism 2, an injection mechanism 3, and an anti-drip mechanism 4. The transport mechanism 2 includes a conveyor belt 5, which is horizontally connected to the frame 1. The battery to be injected is transported along the X-axis direction to directly below the injection mechanism 3 via the conveyor belt 5.
[0031] The electrolyte injection mechanism 3 includes a lifting platform 6, an injection head 7, and an injection pipe 8. The lifting platform 6 is slidably connected to the frame 1 along the Z-axis. The injection head 7 is mounted on the lifting platform 6, and the injection pipe 8 is fixedly located at the bottom of the injection head 7 and communicates with it. When the battery is conveyed directly below the electrolyte injection mechanism 3, the conveyor belt 5 stops operating, and the lifting platform 6 slides downward along the Z-axis, causing the injection head 7 to descend synchronously, allowing the injection pipe 8 to accurately extend into the battery's filling hole. Subsequently, electrolyte is quantitatively injected into the battery through the injection pipe 8, completing the electrolyte injection operation. After the electrolyte injection is completed, the lifting platform 6 slides upward along the Z-axis to reset, causing the injection head 7 and injection pipe 8 to rise synchronously, causing the injection pipe 8 to detach from the battery's filling hole and move away from the battery.
[0032] Two sets of anti-drip mechanisms 4 are symmetrically arranged between the conveyor belt 5 and the lifting platform 6. The anti-drip mechanism 4 includes a liquid receiving sleeve 9, which is slidably connected to the frame 1 along the Y-axis. The inner side of the liquid receiving sleeve 9 has an air inlet chamber 10 and a liquid receiving chamber 11. The outer side of the liquid receiving sleeve 9 has a semi-cylindrical liquid receiving groove 12. The side of the liquid receiving groove 12 has an air guide groove 13 that communicates with the air inlet chamber 10. The bottom of the liquid receiving groove 12 has an exhaust groove 14 that communicates with the liquid receiving chamber 11. The top of the liquid receiving sleeve 9 has an air inlet hole 15 that communicates with the air inlet chamber 10. The bottom of the liquid receiving sleeve 9 has an exhaust hole 16 that communicates with the liquid receiving chamber 11.
[0033] After the electrolyte injection is completed, the injection pipe 8 rises between the two anti-drip mechanisms 4, and the receiving sleeve 9 slides towards each other along the Y-axis, closing from both sides and surrounding the injection pipe 8, so that the bottom of the injection pipe 8 with electrolyte adhering to it is completely placed in the receiving tank 12. At the same time, an external high-pressure drying air source enters the air inlet chamber 10 through the air inlet hole 15 at the top of the receiving sleeve 9, and the airflow then enters the receiving tank 12 along the air guide groove 13, thereby blowing off the electrolyte remaining on the surface of the injection pipe 8. The residual liquid carried by the airflow flows into the receiving chamber 11 through the exhaust groove 14 at the bottom, and is finally discharged through the exhaust hole 16. Then the conveyor belt 5 resumes operation, transporting the battery that has been injected to a position away from the injection mechanism 3, while transporting the next battery to be injected to the area directly below the injection mechanism 3, starting the next injection cycle.
[0034] Two sets of symmetrically arranged anti-drip mechanisms 4 form a two-way protective structure. The liquid receiving sleeve 9 can be flexibly opened and closed along the Y-axis, which will not interfere with the delivery of the battery and the lifting and lowering of the liquid injection head 7. It can also perform all-round cleaning of the liquid injection pipe 8 before and after liquid injection, effectively solving the problem of liquid injection pipe 8 dripping, avoiding electrolyte corrosion of equipment, contamination of conveyor belt 5 and battery surface, significantly reducing product defect rate and ensuring production stability.
[0035] Specifically, when the injection mechanism 3 completes the injection and the injection tube 8 rises and resets along the Z-axis between the two anti-drip mechanisms 4, the receiving sleeve 9 slides and closes along the Y-axis, completely enclosing the bottom of the injection tube 8, which is coated with electrolyte, within the receiving tank 12. At this time, an external high-pressure drying air source enters the air inlet chamber 10 through the air inlet 15, forming a directional airflow along the air guide 13 to sweep the surface of the injection tube 8. The residual electrolyte is blown off and flows with the airflow through the exhaust duct 14 into the receiving chamber 11, and finally is discharged through the exhaust port 16. This allows the residual liquid on the surface of the injection tube 8 to be swept and collected efficiently from all directions, solving the problem of residual liquid dripping after the injection tube 8 rises in traditional injection devices, which causes electrolyte to corrode the frame 1, contaminate the conveyor belt 5, and the surface of the battery. It also reduces defects such as battery casing corrosion and internal electrolyte quantity deviation, significantly reducing the product defect rate, extending the service life of the equipment, and reducing equipment maintenance costs.
[0036] According to one embodiment of the present invention, the anti-drip mechanism 4 further includes a connecting frame 17, which is slidably connected to the frame 1 along the Y-axis direction. Multiple injection heads 7 are provided and are slidably connected to the lifting platform 6 along the X-axis direction. Multiple liquid receiving sleeves 9 are provided and are slidably connected to the connecting frame 17 along the X-axis direction.
[0037] Specifically, the spacing between adjacent injection heads 7 in the liquid injection mechanism 3 can be adjusted as needed to adapt to batteries with different numbers of cells and different filling hole spacings. Correspondingly, multiple liquid receiving sleeves 9 of the anti-drip mechanism 4 are slidably engaged with the frame 1 via a connecting frame 17. The connecting frame 17 can move as a whole along the Y-axis to open and close the liquid receiving sleeves 9. At the same time, each liquid receiving sleeve 9 can slide along the X-axis on the connecting frame 17, so that the liquid receiving sleeve 9 corresponds precisely to the injection head 7 and the injection tube 8. During liquid injection, the lifting platform 6 drives the injection head 7 with the adjusted spacing to descend and complete the liquid injection. After liquid injection, the injection tube 8 rises between the two sets of liquid receiving sleeves 9, and the connecting frame 17 drives the liquid receiving sleeves 9 to close along the Y-axis, simultaneously cleaning each injection tube 8 to prevent dripping. Different battery models can be adapted by sliding adjustment, which greatly shortens the changeover time and reduces production preparation costs.
[0038] According to one embodiment of the present invention, the anti-drip mechanism 4 further includes a connecting assembly 18, which is provided in multiple sets and is connected to the corresponding liquid receiving sleeve 9. The connecting assembly 18 includes a first rotating plate 19 and a second rotating plate 20. The middle parts of the first rotating plate 19 and the second rotating plate 20 are rotatably connected to the liquid receiving sleeve 9 around the Y-axis. The top of the first rotating plate 19 is hinged to the top of the second rotating plate 20 on one side of the adjacent liquid receiving sleeve 9, and the bottom of the first rotating plate 19 is hinged to the bottom of the second rotating plate 20 on the other side of the adjacent liquid receiving sleeve 9, forming a movable connecting rod structure.
[0039] Specifically, when any one of the liquid receiving sleeves 9 is moved along the X-axis, the first rotating plate 19 and the second rotating plate 20 on that liquid receiving sleeve 9 will drive the adjacent liquid receiving sleeves 9 to move synchronously through the hinge point. Furthermore, through the rotation of the first rotating plate 19 and the second rotating plate 20, all liquid receiving sleeves 9 maintain a parallel spacing, achieving proportional scaling adjustment. After adjustment, the liquid receiving sleeves 9 can be closed along the Y-axis under the action of the connecting frame 17, performing a circumferential cleaning of the injection tube 8.
[0040] The connecting component 18 forms a parallelogram linkage mechanism, which eliminates the need to adjust the position of each liquid receiving sleeve 9 individually. Instead, all liquid receiving sleeves 9 can be adjusted synchronously by manipulating a single liquid receiving sleeve 9, greatly improving the efficiency and accuracy of spacing adjustment and avoiding errors caused by manual calibration.
[0041] According to one embodiment of the present invention, the anti-drip mechanism 4 further includes a guide shaft 21, a threaded rod 22, and a threaded sleeve 23. The guide shaft 21 is fixedly connected to the connecting frame 17, and the threaded rod 22 is rotatably connected to the connecting frame 17. The side of the liquid receiving sleeve 9 is provided with a first sliding hole and a second sliding hole that are slidably connected to the guide shaft 21 and the threaded rod 22, respectively. Two threaded sleeves 23 are provided and fixedly disposed on the liquid receiving sleeves 9 closest to both ends of the threaded rod 22. The outer side of the threaded rod 22 is provided with two symmetrically distributed threaded segments with opposite helical directions. The threaded sleeves 23 are threadedly connected to the corresponding threaded segments.
[0042] When the threaded rod 22 is rotated, the liquid receiving sleeves 9 at both ends move inward or outward synchronously along the guide shaft 21 under the drive of the reverse thread. At the same time, through the linkage structure of adjacent liquid receiving sleeves 9, all the liquid receiving sleeves 9 in the middle are driven to adjust the spacing synchronously, so as to achieve overall equidistant scaling and adapt to the liquid filling hole layout of multi-cell batteries.
[0043] According to one embodiment of the present invention, the injection mechanism 3 further includes a positioning component 24. The positioning component 24 is provided in multiple sets and is connected to the corresponding injection head 7. The positioning component 24 includes a slide rod 25, a nut 26 and a washer 27. The top of the lifting platform 6 is provided with a sliding groove. The slide rod 25 is slidably connected to the sliding groove. The bottom of the slide rod 25 is fixedly connected to the top of the injection head 7. The top of the slide rod 25 is provided with a thread that cooperates with the nut 26. The washer 27 is sleeved on the outside of the slide rod 25 and is located between the lifting platform 6 and the nut 26.
[0044] The injection head 7 slides along the X-axis through a sliding groove between the slide rod 25 and the lifting platform 6. The top of the slide rod 25 is threaded, and the washer 27 is fitted onto the slide rod 25 and fits against the top surface of the lifting platform 6. The nut 26 is threaded into the top of the slide rod 25. When the nut 26 is tightened, the washer 27 fits tightly against the lifting platform 6 under the pressure of the nut 26, and the slide rod 25 and the injection head 7 are fixed in the preset position by friction. Loosening the nut 26 allows the spacing of the injection head 7 to be adjusted again to adapt to different battery specifications.
[0045] According to one embodiment of the present invention, the anti-drip mechanism 4 further includes a gas cylinder, a valve, a first pipeline, a second pipeline, and an acid mist scrubbing tower. The gas cylinder contains high-pressure dry gas. One end of the first pipeline is connected to the gas cylinder, and the other end of the first pipeline is connected to an air inlet 15. The valve is located in the first pipeline and is used to control the gas flow and the gas volume through the air inlet 15 of the liquid receiving sleeve 9. One end of the second pipeline is connected to an exhaust port 16, and the other end of the second pipeline is connected to the acid mist scrubbing tower. The exhaust gas after purging the injection pipe 8, carrying acid mist and residual liquid, enters the second pipeline through the exhaust port 16 and is finally delivered to the acid mist scrubbing tower. The acid mist scrubbing tower neutralizes and absorbs the acidic substances in the exhaust gas by spraying alkaline solution or pure water. The purified gas meets the emission standards, and the residual liquid is collected and treated.
[0046] According to one embodiment of the present invention, the electrolyte injection mechanism 3 further includes a storage tank and an injection pump. The input end of the injection pump is connected to the storage tank, and the output end is connected to the injection head 7. During injection, the injection pump quantitatively extracts electrolyte from the storage tank according to preset parameters and delivers it to each injection head 7, and then precisely injects it into the battery through the injection pipe 8 to achieve quantitative electrolyte injection. The storage tank can be replenished with electrolyte as needed to ensure continuous production.
[0047] According to one embodiment of the present invention, the liquid injection mechanism 3 further includes a first telescopic rod, which is fixedly connected to the frame 1. The telescopic end of the first telescopic rod is fixedly connected to the lifting platform 6. The telescopic movement of the first telescopic rod drives the lifting platform 6 to move up and down along the Z-axis, thereby realizing the lifting and lowering of the liquid injection head 7 and the liquid injection tube 8, and controlling the stroke of the liquid injection tube 8 to insert into and detach from the battery. The anti-drip mechanism 4 further includes a second telescopic rod, which is fixedly connected to the frame 1. The telescopic end of the second telescopic rod is fixedly connected to the liquid receiving sleeve 9. The telescopic movement of the second telescopic rod drives the liquid receiving sleeve 9 to slide in opposite directions along the Y-axis, thereby realizing the opening and closing of the liquid receiving sleeve 9, and completing the anti-drip cleaning in conjunction with the liquid injection process. Both the first telescopic rod and the second telescopic rod are electric push rods.
[0048] According to one embodiment of the present invention, the anti-drip mechanism 4 further includes a sealing strip 28 and a sealing gasket 29. A sealing groove is provided on the side of the liquid receiving sleeve 9. The sealing strip 28 is fixedly disposed in the sealing groove and has a U-shaped structure. When the two sets of liquid receiving sleeves 9 are closed along the Y-axis, the sealing strips 28 on both sides are pressed and adhered to each other to seal the joint gap. The sealing gasket 29 is fixedly disposed on the top of the liquid receiving groove 12. After the liquid receiving sleeves 9 are closed, the sealing gasket 29 adheres to the wall of the injection pipe 8 and blocks the top opening of the liquid receiving groove 12.
[0049] It should be noted that the sealing gasket 29 is attached to the middle area of the injection tube 8, rather than the bottom of the injection tube 8 which is contaminated with electrolyte. This effectively seals the top opening of the receiving tank 12, preventing the airflow from carrying acid mist upwards, and avoids the residual liquid area at the bottom of the injection tube 8, preventing secondary pollution caused by the sealing gasket 29 being contaminated with electrolyte. At the same time, it does not affect the purging and collection of residual liquid at the bottom.
[0050] According to one embodiment of the present invention, the air guide groove 13 is arranged in an inclined state inside the liquid receiving groove 12, and a plurality of such grooves are provided and are arranged at equal intervals along the Z-axis. The axial direction of the air inlet 15 is tangential to the inner wall of the air inlet chamber 10. After the high-pressure gas enters from the air inlet 15, it forms a swirling flow along the tangential direction, is guided by the inclined air guide groove 13, and flows spirally downward over the surface of the liquid injection pipe 8, forming a surrounding airflow that can more comprehensively cover the surface of the liquid injection pipe 8 and improve the cleaning effect. The axial direction of the exhaust hole 16 is tangential to the inner wall of the liquid receiving chamber 11, so that the airflow carrying residual liquid is discharged along the tangential direction, thereby improving the efficiency of residual liquid entrainment and discharge.
[0051] To facilitate understanding of the embodiments of this solution by those skilled in the art, the working principle of the embodiments of this solution will now be explained in conjunction with specific application scenarios: When the equipment is working, the transport mechanism 2, which consists of a horizontal conveyor belt 5, transports the battery to be injected along the X-axis to the area directly below the injection mechanism 3, and then the conveyor belt 5 stops operating. Driven by the first telescopic rod, the injection mechanism 3 controls the lifting platform 6 to slide downward along the Z-axis, which drives the injection head 7 and the bottom injection pipe 8 to descend synchronously, so that the injection pipe 8 can be accurately inserted into the battery filling hole. The injection pump quantitatively extracts the electrolyte from the storage tank, and the quantitative injection of the battery is completed through the injection head 7 and the injection pipe 8. After the injection is completed, the lifting platform 6 returns to its original position along the Z-axis, and the injection pipe 8 disengages from the filling hole and rises back between the two sets of anti-drip mechanisms 4.
[0052] After the injection tube 8 is reset, the two sets of symmetrically arranged anti-drip mechanisms 4, driven by the second telescopic rod, control the receiving sleeve 9 to slide and close together along the Y-axis, wrapping around the injection tube 8 from both sides, so that the bottom of the injection tube 8 with the electrolyte adhering to it is completely placed in the receiving tank 12; then, the external high-pressure drying air source is introduced into the air inlet chamber 10 of the receiving sleeve 9 through the air inlet hole 15, and the airflow is blown onto the surface of the injection tube 8 through the air guide groove 13, blowing off the residual electrolyte. The airflow carrying the residual liquid and acid mist flows into the receiving chamber 11 through the exhaust groove 14, and then is discharged through the exhaust hole 16, realizing the injection tube 8 is clean without dripping; after cleaning, the receiving sleeve 9 retracts to its original position along the Y-axis, the conveyor belt 5 resumes operation, the battery that has been injected is sent out, and the next battery to be injected is delivered to the position, entering the cycle injection process.
[0053] To accommodate batteries with different cell counts and filling hole spacings, the filling head 7 can slide along the X-axis via the slide bar 25 and the sliding groove of the lifting platform 6 to adjust the spacing. After adjustment, it is locked in place by pressing the nut 26 and the washer 27. The receiving sleeve 9 can slide along the X-axis via the connecting frame 17, and through the linkage structure formed by the first rotating plate 19 and the second rotating plate 20, all receiving sleeves 9 can move synchronously at equal distances. With the two reverse threads of the threaded rod 22 driving the receiving sleeves 9 at both ends to extend and retract synchronously, the proportional scaling adjustment of the receiving sleeve 9 and the filling head 7 can be completed quickly without individual calibration, greatly improving the efficiency of replacement and adaptation.
[0054] Meanwhile, when the two sets of liquid receiving sleeves 9 are closed, the side U-shaped sealing strip 28 seals the joint gap, and the top sealing gasket 29 fits against the middle of the injection pipe 8 to block the opening, which not only prevents the diffusion of acid mist, but also avoids the residual liquid area of the injection pipe 8 to prevent secondary pollution; the high-pressure gas forms a swirling airflow through the tangential air inlet 15 and the inclined air guide groove 13, which sweeps the surface of the injection pipe 8 in all directions, and the exhaust gas carrying acid mist is transported to the acid mist scrubbing tower for purification treatment through the second pipeline to achieve standard emission, fundamentally solving the problem of electrolyte dripping corroding equipment, polluting the conveyor belt 5 and the surface of the battery, ensuring production stability and reducing the product defect rate.
[0055] The above-disclosed embodiments are merely a few specific examples of the present invention. However, the embodiments of the present invention are not limited thereto, and any variations that can be conceived by those skilled in the art should fall within the protection scope of the present invention.
Claims
1. A lead-acid battery processing electrolyte injection device, characterized in that, It includes a frame (1), a transport mechanism (2), a liquid injection mechanism (3), and an anti-drip mechanism (4); The transport mechanism (2) includes a conveyor belt (5), which is horizontal and connected to the frame (1); The liquid injection mechanism (3) includes a lifting platform (6), an injection head (7) and an injection pipe (8). The lifting platform (6) is slidably connected to the frame (1) along the Z-axis. The injection head (7) is installed on the lifting platform (6). The injection pipe (8) is fixedly installed at the bottom of the injection head (7) and is connected to the injection head (7). The anti-drip mechanism (4) is provided in two sets and is symmetrically arranged between the conveyor belt (5) and the lifting platform (6). The anti-drip mechanism (4) includes a liquid receiving sleeve (9), which is slidably connected to the frame (1) along the Y-axis. An air inlet chamber (10) and a liquid receiving chamber (11) are provided on the inner side of the liquid receiving sleeve (9). A semi-cylindrical liquid receiving groove (12) is provided on the outer side of the liquid receiving sleeve (9). A guide groove (13) communicating with the air inlet chamber (10) is provided on the side of the liquid receiving groove (12). An exhaust groove (14) communicating with the liquid receiving chamber (11) is provided at the bottom of the liquid receiving groove (12). An air inlet hole (15) communicating with the air inlet chamber (10) is provided at the top of the liquid receiving sleeve (9). An exhaust hole (16) communicating with the liquid receiving chamber (11) is provided at the bottom of the liquid receiving sleeve (9).
2. The lead-acid battery processing electrolyte injection device as described in claim 1, characterized in that, The anti-drip mechanism (4) also includes a connecting frame (17), which is slidably connected to the frame (1) along the Y-axis direction. Multiple injection heads (7) are provided and are slidably connected to the lifting platform (6) along the X-axis direction. Multiple liquid receiving sleeves (9) are provided and are slidably connected to the connecting frame (17) along the X-axis direction.
3. The lead-acid battery processing electrolyte injection device as described in claim 2, characterized in that, The anti-drip mechanism (4) further includes a connecting component (18), which is provided in multiple sets and is connected to the corresponding liquid receiving sleeve (9). The connecting component (18) includes a first rotating plate (19) and a second rotating plate (20). The middle parts of the first rotating plate (19) and the second rotating plate (20) are connected to the liquid receiving sleeve (9) around the Y-axis. The top of the first rotating plate (19) is hinged to the top of the second rotating plate (20) on the adjacent liquid receiving sleeve (9) on one side, and the bottom of the first rotating plate (19) is hinged to the bottom of the second rotating plate (20) on the adjacent liquid receiving sleeve (9) on the other side.
4. The lead-acid battery processing electrolyte injection device as described in claim 3, characterized in that, The anti-drip mechanism (4) also includes a guide shaft (21), a threaded rod (22), and a threaded sleeve (23). The guide shaft (21) is fixedly connected to the connecting frame (17), and the threaded rod (22) is rotatably connected to the connecting frame (17). The side of the liquid receiving sleeve (9) is provided with a first sliding hole and a second sliding hole that are slidably connected to the guide shaft (21) and the threaded rod (22), respectively. There are two threaded sleeves (23), which are fixedly installed on the liquid receiving sleeves (9) closest to both ends of the threaded rod (22). The outer side of the threaded rod (22) is provided with two symmetrically distributed threaded segments with opposite spiral directions. The threaded sleeves (23) are threadedly connected to the corresponding threaded segments.
5. The lead-acid battery processing electrolyte injection device as described in claim 2, characterized in that, The injection mechanism (3) further includes a positioning component (24). The positioning component (24) is provided in multiple sets and is connected to the corresponding injection head (7). The positioning component (24) includes a slide rod (25), a nut (26) and a washer (27). The top of the lifting platform (6) is provided with a sliding groove. The slide rod (25) is slidably connected to the sliding groove. The bottom of the slide rod (25) is fixedly connected to the top of the injection head (7). The top of the slide rod (25) is provided with a thread that matches the nut (26). The washer (27) is sleeved on the outside of the slide rod (25) and located between the lifting platform (6) and the nut (26).
6. The lead-acid battery processing electrolyte injection device as described in claim 1, characterized in that, The anti-drip mechanism (4) also includes a gas cylinder, a valve, a first pipeline, a second pipeline, and an acid mist scrubbing tower. The gas cylinder is filled with high-pressure dry gas. One end of the first pipeline is connected to the gas cylinder, and the other end of the first pipeline is connected to the air inlet (15). The valve is located in the first pipeline. One end of the second pipeline is connected to the exhaust port (16), and the other end of the second pipeline is connected to the acid mist scrubbing tower.
7. The lead-acid battery processing electrolyte injection device as described in claim 1, characterized in that, The injection mechanism (3) also includes a storage tank and an injection pump. The input end of the injection pump is connected to the storage tank, and the output end of the injection pump is connected to the injection head (7).
8. The lead-acid battery processing electrolyte injection device as described in claim 1, characterized in that, The liquid injection mechanism (3) further includes a first telescopic rod, which is fixedly connected to the frame (1). The telescopic end of the first telescopic rod is fixedly connected to the lifting platform (6). The anti-drip mechanism (4) further includes a second telescopic rod, which is fixedly connected to the frame (1). The telescopic end of the second telescopic rod is fixedly connected to the liquid receiving sleeve (9). Both the first telescopic rod and the second telescopic rod are electric push rods.
9. The lead-acid battery processing electrolyte injection device as described in claim 1, characterized in that, The anti-drip mechanism (4) also includes a sealing strip (28) and a sealing gasket (29). The side of the liquid receiving sleeve (9) is provided with a sealing groove. The sealing strip (28) is fixedly installed in the sealing groove and has a U-shaped structure. The sealing gasket (29) is fixedly installed on the top of the liquid receiving groove (12).
10. The lead-acid battery processing electrolyte injection device as described in claim 1, characterized in that, The air guide groove (13) is arranged in an inclined state inside the liquid receiving groove (12), and there are multiple grooves arranged at equal intervals along the Z-axis. The axial direction of the air inlet (15) is tangent to the inner wall of the air inlet cavity (10), and the axial direction of the exhaust hole (16) is tangent to the inner wall of the liquid receiving cavity (11).