Full-automatic acid feeding device for lead-acid battery

By designing a fully automatic lead-acid battery acid filling device, the acid filling operation of lead-acid batteries has been automated and purified, solving the problem of low efficiency of manual operation, improving production efficiency and protecting the health of workers.

CN224164379UActive Publication Date: 2026-04-24NANJING FULITER ELECTROMECHANICAL TECH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
NANJING FULITER ELECTROMECHANICAL TECH CO LTD
Filing Date
2025-05-16
Publication Date
2026-04-24

AI Technical Summary

Technical Problem

The current method of adding acid to lead-acid batteries is done manually, which is inefficient and poses health risks.

Method used

Design a fully automatic lead-acid battery acid filling device, which uses a conveyor belt and servo motor to realize automatic battery transportation, combines a metering pump and electromagnet to realize automatic liquid injection, and uses an exhaust gas purification mechanism to purify acid mist, using activated carbon particles to adsorb and purify exhaust gas.

Benefits of technology

It has achieved highly efficient automation of lead-acid battery acid filling operations, increased production capacity, avoided the safety hazards of manual contact with electrolyte, and protected the health of workers.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a full-automatic acid feeding device for a lead-acid battery, which belongs to the field of lead-acid battery production devices and comprises a base, a conveying mechanism mounted on the base, a charging barrel fixedly mounted at the upper end of the base, electrolyte filled in the charging barrel, a metering pump fixedly mounted at the bottom of the charging barrel, and a liquid inlet pipe of the metering pump communicated with the inside of the charging barrel. The liquid discharging end of the metering pump communicates with and is fixedly provided with a liquid discharging pipe. A movable pipe capable of sliding up and down is inserted into the liquid discharging pipe, an annular piece is fixedly installed on the movable pipe, springs are fixedly connected to the two ends of the annular piece, an industrial personal computer is fixedly installed on the machine base, and a waste gas purification mechanism is installed on the liquid discharging pipe; the device can replace manual operation to carry out acid feeding operation on the lead-acid battery, the speed is increased by multiple times compared with manual operation, the productivity is broken through and improved, the comprehensive efficiency of the device is higher than that of manual operation, and the large-scale production requirement is met. And meanwhile, workers are prevented from being in direct contact with the electrolyte, accidental leakage and diffusion of the electrolyte are avoided, and potential safety hazards and accidents are eliminated.
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Description

Technical Field

[0001] This utility model relates to the technical field of lead-acid battery production equipment, and in particular to a fully automatic lead-acid battery acid filling device. Background Technology

[0002] The acid filling process for lead-acid batteries is a core step in battery production, directly affecting battery capacity, lifespan, and safety. It involves injecting electrolyte (dilute sulfuric acid) into the battery plates to fill the medium for the electrochemical reaction. Currently, lead-acid battery acid filling is mostly done manually, using metering pumps to pump the electrolyte (sulfuric acid solution) through pipelines to the lead-acid battery's filling port. This manual operation is inefficient, and the acid fumes generated during the process evaporate into the air, posing adverse health risks to workers who inhale them. To address these issues, we propose a fully automated lead-acid battery acid filling device. Utility Model Content

[0003] The purpose of this invention is to solve the problems of low efficiency and health hazards in the manual operation of lead-acid battery acid filling in the existing technology, and to propose a fully automatic lead-acid battery acid filling device.

[0004] To achieve the above objectives, the present invention adopts the following technical solution:

[0005] An automatic lead-acid battery acid filling device includes a base, a conveying mechanism installed on the base, a material cylinder fixedly installed at the upper end of the base, an electrolyte filling the material cylinder, a metering pump fixedly installed at the bottom of the material cylinder, an inlet pipe of the metering pump connected to the inside of the material cylinder, and a drain pipe fixedly installed at the outlet end of the metering pump.

[0006] A movable tube is slidably inserted inside the drain pipe. An annular plate is fixedly installed on the movable tube. Springs are fixedly connected to both ends of the annular plate. The upper end of the spring is fixedly connected to the drain pipe. The annular plate is a magnet. An electromagnet is fixedly installed outside the drain pipe. An industrial control computer is fixedly installed on the base. An exhaust gas purification mechanism is installed on the drain pipe. The exhaust gas purification mechanism is used to purify the acid mist discharged from the lead-acid battery.

[0007] Preferably, a liquid injection pipe is connected to and fixedly installed on the material cylinder, a sealing plug is provided at the liquid injection pipe, and a pressure balance valve is installed at the top of the material cylinder.

[0008] Preferably, a valve is installed on the drain pipe.

[0009] Preferably, the conveying mechanism includes two conveyor belt rollers rotatably mounted on a base, a conveyor belt is installed between the two conveyor belt rollers, a servo motor is fixedly mounted on the base, and the output shaft of the servo motor is fixedly connected to the conveyor belt rollers.

[0010] Preferably, a pallet is fixedly installed on the base, and the pallet is located inside the conveyor belt.

[0011] Preferably, the surface of the conveyor belt is provided with multiple sets of equidistant marking structures, and the marking structure includes two marking lines disposed on the surface of the conveyor belt and distributed at intervals.

[0012] Preferably, the exhaust gas purification mechanism includes an exhaust pipe fixedly installed on the drain pipe, one end of the exhaust pipe extending into the movable pipe, an inner pipe provided inside the movable pipe, the inner pipe sleeved outside the exhaust pipe and the two communicating, and two support rods fixedly installed on the inner pipe, the support rods being fixedly connected to the movable pipe.

[0013] Preferably, a baffle is fixedly installed on the base, and an inlet is provided on the baffle.

[0014] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0015] Lead-acid batteries are placed on a conveyor belt. An industrial control computer controls a servo motor to operate intermittently, driving the conveyor belt to deliver the batteries to the bottom of a movable tube. An electromagnet is energized, pushing the movable tube down to insert into the electrolyte inlet, and the metering pump starts injecting electrolyte. Once injection is complete, the electromagnet is de-energized and reset, the battery is ejected, and the cycle completes the batch acid filling process. This device can replace manual acid filling of lead-acid batteries, increasing speed many times over, resulting in a significant increase in production capacity. The overall efficiency of the equipment is higher than manual operation, meeting the needs of large-scale production. Simultaneously, it avoids direct contact between workers and the electrolyte, preventing accidental leakage and diffusion, and eliminating safety hazards and accidents.

[0016] During the electrolyte injection process, the support rod moves synchronously with the movable tube, and the inner tube extends to the battery injection port at the same time. The exhaust gas inside the battery can be discharged through the inner tube and the exhaust pipe, and then pass through the activated carbon particles in the container. The activated carbon particles can adsorb and purify the acidic substances in the exhaust gas, preventing acid mist from entering the working environment, avoiding air pollution, and protecting the health of the staff. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the operation of a fully automatic lead-acid battery acid filling device proposed in this utility model;

[0018] Figure 2 This is a schematic diagram of the structure of a fully automatic lead-acid battery acid filling device proposed in this utility model;

[0019] Figure 3 This is a magnified schematic diagram of a portion of the structure of the drain pipe in a fully automatic lead-acid battery acid filling device proposed in this utility model. Figure 1 ;

[0020] Figure 4 This is an enlarged structural schematic diagram of the baffle in a fully automatic lead-acid battery acid filling device proposed in this utility model;

[0021] Figure 5 This is an enlarged schematic diagram of a portion of the structure of the drain pipe in a fully automatic lead-acid battery acid filling device proposed in this utility model. Figure 2 ;

[0022] Figure 6 This is an enlarged cross-sectional view of a portion of the structure of the drain pipe in a fully automatic lead-acid battery acid filling device proposed in this utility model.

[0023] In the diagram: 1. Base; 2. Material cylinder; 3. Metering pump; 4. Drain pipe; 5. Valve; 6. Movable pipe; 7. Annular plate; 8. Spring; 9. Electromagnet; 10. Industrial computer; 11. Injection pipe; 12. Air pressure balance valve; 13. Conveyor belt roller; 14. Conveyor belt; 15. Servo motor; 16. Pallet; 17. Marking line; 18. Exhaust pipe; 19. Inner pipe; 20. Support rod; 21. Baffle; 22. Inlet; 23. Container; 24. Activated carbon granules. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0025] Example 1

[0026] Reference Figure 1-6An automatic lead-acid battery acid filling device includes a base 1, a conveying mechanism mounted on the base 1, a material cylinder 2 fixedly mounted on the upper end of the base 1, the material cylinder 2 containing electrolyte, a metering pump 3 fixedly mounted on the bottom of the material cylinder 2, the inlet pipe of the metering pump 3 communicating with the inside of the material cylinder 2, and a drain pipe 4 fixedly mounted on the outlet end of the metering pump 3. A movable tube 6, which can slide up and down, is inserted into the drain pipe 4. An annular plate 7 is fixedly mounted on the movable tube 6, and springs 8 are fixedly connected to both ends of the annular plate 7. The upper end of the springs 8 is fixedly connected to the drain pipe 4. The annular plate 7 is a magnet. An electromagnet 9 is fixedly mounted on the outside of the drain pipe 4. An industrial control computer 10 is fixedly mounted on the base 1. A waste gas purification mechanism is mounted on the drain pipe 4 to purify the acid mist discharged from the lead-acid battery. A valve 5 is mounted on the drain pipe 4.

[0027] The material cylinder 2 is connected to and fixedly installed with a liquid injection pipe 11, and a sealing plug is provided at the liquid injection pipe 11. A pressure balance valve 12 is installed at the top of the material cylinder 2, and the pressure balance valve 12 is used to balance the air pressure inside the material cylinder 2.

[0028] The conveying mechanism includes two conveyor belt rollers 13 that are rotatably mounted on the base 1, a conveyor belt 14 is installed between the two conveyor belt rollers 13, and a servo motor 15 is fixedly mounted on the base 1. The output shaft of the servo motor 15 is fixedly connected to the conveyor belt rollers 13.

[0029] A support plate 16 is fixedly installed on the base 1. The support plate 16 is located inside the conveyor belt 14. The support plate 16 supports the upper end of the conveyor belt 14 to prevent the conveyor belt 14 from being crushed by the battery on it.

[0030] A schematic diagram of the device's operation can be found here. Figure 1As shown, lead-acid batteries are placed on conveyor belt 14. The industrial control computer 10 controls the servo motor 15 to work intermittently. The servo motor 15 intermittently drives the conveyor belt roller 13 to rotate, and the conveyor belt 14 intermittently transports the lead-acid batteries on it. The lead-acid batteries are intermittently moved to directly below the movable tube 6. The industrial control computer 10 controls the electromagnet 9 to be energized and apply a repulsive force to the annular plate 7. The spring 8 is stretched, and both the annular plate 7 and the movable tube 6 move downward. The lower end of the movable tube 6 is inserted into the electrolyte filling port of the battery. The industrial control computer 10 controls the metering pump 3 to work, and the valve 5 is opened. The metering pump 3 pumps a certain amount of electrolyte from the pump to the drain pipe 4, and then discharges it into the lead-acid battery through the movable tube 6. After the electrolyte filling is completed, the electromagnet 9 is de-energized, the spring 8 drives the movable tube 6 to reset, the metering pump 3 is turned off, and the conveyor belt 14 sends the lead-acid battery away. The subsequent lead-acid batteries are then moved to the lower part of the movable tube 6, and the above work is repeated. The automatic acid filling operation can be performed on multiple lead-acid batteries. After the acid filling is completed, the battery is transported to the other end of the conveyor belt 14 and can be removed by the operator. The device can replace manual acid filling of lead-acid batteries, which is many times faster than manual operation, and the production capacity is greatly improved. The overall efficiency of the equipment is higher than that of manual operation, which meets the needs of large-scale production. At the same time, it avoids direct contact between staff and electrolyte, preventing accidental leakage and spread of electrolyte, and eliminating safety hazards and accidents.

[0031] Based on Example 1, Example 2:

[0032] Reference Figure 2-6 The surface of the conveyor belt 14 is provided with multiple sets of equidistant marking structures. The marking structures include two marking lines 17 that are set on the surface of the conveyor belt 14 and are spaced apart. Placing the battery between the two marking lines 17 makes it easier for the staff to place the battery in a more accurate position, and the liquid injection port on the battery can be moved more precisely to the underside of the active tube 6.

[0033] The exhaust gas purification mechanism includes an exhaust pipe 18 fixedly installed on the drain pipe 4. One end of the exhaust pipe 18 extends into the movable pipe 6. The movable pipe 6 has an inner pipe 19 inside, which is sleeved on the exhaust pipe 18 and the two are connected. Two support rods 20 are fixedly installed on the inner pipe 19 and are fixedly connected to the movable pipe 6. The outer end of the exhaust pipe 18 is connected to and fixedly installed with a container 23, which is filled with activated carbon particles 24.

[0034] During the electrolyte injection process, the support rod 20 moves synchronously with the movable tube 6, and the inner tube 19 extends to the battery injection port. The exhaust gas inside the battery can be discharged through the inner tube 19 and the exhaust pipe 18, and then through the activated carbon particles 24 in the container 23. The activated carbon particles 24 can adsorb and purify the acidic substances in the exhaust gas, preventing acid mist from entering the working environment, avoiding air pollution, and protecting the health of the staff.

[0035] A baffle 21 is fixedly installed on the base 1. An inlet 22 is opened on the baffle 21. When acid is added, the movable tube 6 passes through the baffle 21 and is inserted into the battery electrolyte filling port. By setting the baffle 21 to block the top of the battery electrolyte filling port, dust and other impurities can be prevented from falling into the battery electrolyte filling port, thus preventing the electrolyte inside the battery from being contaminated.

[0036] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A fully automatic lead-acid battery acid filling device, comprising a base (1), characterized in that, A conveying mechanism is installed on the base (1). A material cylinder (2) is fixedly installed on the upper end of the base (1). Electrolyte is contained in the material cylinder (2). A metering pump (3) is fixedly installed at the bottom of the material cylinder (2). The inlet pipe of the metering pump (3) is connected to the inside of the material cylinder (2). The outlet end of the metering pump (3) is connected to and fixedly installed with a drain pipe (4). A movable tube (6) is slidably inserted inside the drain pipe (4). An annular plate (7) is fixedly installed on the movable tube (6). Springs (8) are fixedly connected to both ends of the annular plate (7). The upper end of the springs (8) is fixedly connected to the drain pipe (4). The annular plate (7) is a magnet. An electromagnet (9) is fixedly installed outside the drain pipe (4). An industrial control computer (10) is fixedly installed on the base (1). A waste gas purification mechanism is installed on the drain pipe (4). The waste gas purification mechanism is used to purify the acid mist discharged from the lead-acid battery.

2. The fully automatic lead-acid battery acid filling device according to claim 1, characterized in that, A liquid injection pipe (11) is connected to and fixedly installed on the material cylinder (2), and a sealing plug is provided at the liquid injection pipe (11). A pressure balance valve (12) is installed on the top of the material cylinder (2).

3. The fully automatic lead-acid battery acid filling device according to claim 1, characterized in that, A valve (5) is installed on the drain pipe (4).

4. The fully automatic lead-acid battery acid filling device according to claim 1, characterized in that, The conveying mechanism includes two conveyor belt rollers (13) rotatably mounted on a base (1), a conveyor belt (14) is installed between the two conveyor belt rollers (13), and a servo motor (15) is fixedly mounted on the base (1), with the output shaft of the servo motor (15) being fixedly connected to the conveyor belt rollers (13).

5. The fully automatic lead-acid battery acid-filling device according to claim 4, characterized in that, A pallet (16) is fixedly installed on the base (1), and the pallet (16) is located inside the conveyor belt (14).

6. The fully automatic lead-acid battery acid-filling device according to claim 4, characterized in that, The surface of the conveyor belt (14) is provided with multiple sets of equidistant marking structures, the marking structures including two marking lines (17) provided on the surface of the conveyor belt (14) and spaced apart.

7. The fully automatic lead-acid battery acid filling device according to claim 1, characterized in that, The exhaust gas purification mechanism includes an exhaust pipe (18) fixedly installed on the drain pipe (4). One end of the exhaust pipe (18) extends into the movable pipe (6). The movable pipe (6) is provided with an inner pipe (19). The inner pipe (19) is sleeved on the exhaust pipe (18) and the two are connected. Two support rods (20) are fixedly installed on the inner pipe (19). The support rods (20) are fixedly connected to the movable pipe (6). The outer end of the exhaust pipe (18) is connected to and fixedly installed with a container (23). The container (23) is filled with activated carbon particles (24).

8. The fully automatic lead-acid battery acid filling device according to claim 1, characterized in that, A baffle (21) is fixedly installed on the base (1), and an inlet (22) is opened on the baffle (21).