Vacuumizing acid adding machine for lead storage battery processing

Abstract

The vacuumizing and acid adding machine comprises a bottom plate and a top plate fixed to the upper portion of the bottom plate, the top of the top plate is fixedly connected with a vacuum pump and an acid adding box, the bottom of the top plate is driven by an air cylinder to be provided with a lifting plate which moves up and down, and an air extraction opening of the vacuum pump communicates with a vacuum pipeline; the invention relates to the technical field of lead storage battery processing. According to the vacuumizing and acid adding machine for lead storage battery processing, seamless automatic switching between the vacuumizing procedure and the acid adding procedure is achieved, through a unique self-adaptive opening and closing mechanism, in the vacuumizing stage, a lifting ring is automatically adsorbed to move upwards through negative pressure, a sealing plate is driven to seal the discharging section of an acid injection pipeline, and the vacuum degree is ensured; in the acid adding stage, the movable plate is pushed to move downwards by means of the impact force of acid liquid, the annular check ring is pressed by the lifting ring to form sealing, and meanwhile the acid injection channel is opened. An external complex valve control system is not needed in the process, action is reliable, and interference between procedures is effectively prevented.

Description

Technical Field

[0001] This invention relates to the field of lead-acid battery processing technology, specifically to a vacuum acid filling machine for lead-acid battery processing. Background Technology

[0002] Lead-acid batteries, as an important chemical power source, are widely used in automobiles, communications, and energy storage. In the manufacturing process of lead-acid batteries, the precise injection of electrolyte into the battery casing (acid addition) is a crucial step. Traditional acid addition processes typically employ atmospheric pressure filling or simple vacuum-assisted methods, which have several technical drawbacks: First, air remaining inside the battery casing can lead to incomplete acid addition, easily generating bubbles and causing inaccurate electrolyte injection, affecting battery capacity and consistency. Second, the transition between vacuuming and acid addition requires a complex valve switching system, posing a risk of leaks and acid leakage, which not only affects the safety of the production environment but may also cause a decrease in vacuum due to air backflow. Furthermore, existing equipment has a complex structure, high maintenance costs, and limited automation, making it difficult to meet the demands of high-efficiency, high-quality production.

[0003] Therefore, there is an urgent need for a vacuum acid adding equipment for lead-acid battery processing that can achieve efficient sealing, automatic switching between vacuuming and acid adding functions, and ensure the accuracy and consistency of acid adding. Summary of the Invention

[0004] To address the shortcomings of existing technologies, this invention provides a vacuum acid filling machine for lead-acid battery processing, which solves the problems mentioned above.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a vacuum acid filling machine for lead-acid battery processing, comprising a base plate and a top plate fixed above the base plate. A vacuum pump and an acid filling tank are fixedly connected to the top of the top plate. A lifting plate, driven by a cylinder, moves up and down at the bottom of the top plate. The vacuum pump's suction port is connected to a vacuum pipe. One end of the vacuum pipe passes through the lifting plate and extends below it. The vacuum pipe is fixedly connected to the inner cavity of the lifting plate. An acid injection pipe is connected to the bottom of the acid filling tank. One end of the acid injection pipe passes through the surface of the vacuum pipe and extends below it. A discharge section is provided at the bottom of the acid injection pipe. An annular retaining ring is fixedly connected to the inner cavity of the vacuum pipe. A lifting ring is slidably fitted onto the surface of the acid injection pipe within the inner cavity of the vacuum pipe. The outer diameter of the lifting ring is larger than the inner diameter of the annular retaining ring. A connecting rod extending below the vacuum pipe is fixedly connected to the bottom of the lifting ring. The bottom of the connecting rod is fixedly connected to... A connecting plate is attached, and a movable plate is fixedly connected to one side of the connecting plate. A sealing plate adapted to the bottom of the discharge section is fixed to the top of the movable plate. A through groove is opened in the inner cavity of the movable plate. The bottom of the acid injection pipe is fixedly connected to the top of the movable plate through an elastic sealing strip. In use, after the battery is fixed, the lifting plate drives the vacuum pipe and the acid injection pipe to descend and insert into the acid injection port of the battery. At this time, the sealing gasket around the vacuum pipe is squeezed and sealed. Then, a vacuum is drawn. During the vacuuming, the lifting ring is adsorbed under negative pressure. The lifting ring drives the movable plate to move upward through the connecting rod and the connecting plate. The discharge section at the bottom of the acid injection pipe is sealed by the sealing plate. After the vacuuming is completed, acid needs to be added. The acid injection pipe is started. The acid liquid impacts the movable plate downward, driving the movable plate to move downward. At this time, the movable plate drives the lifting ring to move downward and squeeze the annular retaining ring to form a seal. The self-adaptive structure can automatically open and close the pipe to prevent mutual interference.

[0006] As a further aspect of the present invention: both the vacuum pipe and the acid injection pipe have corrugated sections in their middle sections, which can move up and down with the lifting plate, and the corrugated sections inside the vacuum pipe have reinforcing steel rings to ensure their strength.

[0007] As a further aspect of the present invention: a positioning platform is fixedly connected to the top of the base plate, and a positioning groove adapted to the bottom of the battery is opened on the top of the positioning platform. The battery is positioned by the positioning groove, so that the acid filling port of the battery is aligned with the acid injection pipe and vacuum pipe above.

[0008] As a further aspect of the present invention: a sealing ring is fixedly connected to the bottom of the lifting ring, and the sealing ring expands to seal when the bottom of the lifting ring is pressed against the top of the annular retaining ring.

[0009] As a further aspect of the present invention: the elastic sealing strip forms a circle around the sealing plate on the surface of the top plate.

[0010] Compared with the prior art, the present invention has the following advantages: 1. Seamless automatic switching between vacuuming and acid addition processes is achieved: Through a unique adaptive opening and closing mechanism, during the vacuuming stage, the negative pressure automatically adsorbs and moves the lifting ring upward, driving the sealing plate to seal the outlet section of the acid injection pipe, ensuring vacuum. During the acid addition stage, the impact force of the acid liquid pushes the movable plate downward, causing the lifting ring to press against the annular retaining ring to form a seal, while simultaneously opening the acid injection channel. This process requires no complex external valve control system, is reliable, and effectively prevents interference between processes.

[0011] 2. Improved sealing reliability and acid addition accuracy: After the vacuum pipeline is lowered, a reliable seal is formed between its outer sealing gasket and the battery acid injection port. During vacuuming, the sealing plate tightly adheres to the discharge section under negative pressure to prevent air leakage; during acid addition, the lifting ring and the annular retaining ring tightly adhere to each other to prevent acid from entering the vacuum system. This dual sealing mechanism ensures high vacuum and accurate acid addition, avoiding bubble generation and electrolyte waste.

[0012] 3. Compact structure and high degree of automation: The equipment uses a cylinder to drive the lifting plate to lift the vacuum pipe and acid injection pipe as a whole. Working in conjunction with the positioning platform at the bottom, it realizes a fully automated process of rapid battery positioning, sealing, vacuuming and acid addition, which greatly improves production efficiency and reduces the intensity of manual operation and potential risks. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of the present invention; Figure 2 For the present invention Figure 1 A magnified view of a portion of point A in the middle.

[0014] In the diagram: 1. Base plate; 2. Positioning platform; 3. Top plate; 4. Vacuum pump; 5. Acid tank; 6. Acid injection pipe; 7. Vacuum pipe; 8. Lifting plate; 9. Movable plate; 10. Sealing plate; 11. Elastic sealing strip; 12. Connecting plate; 13. Connecting rod; 14. Lifting ring; 15. Annular retaining ring. Detailed Implementation

[0015] To further illustrate the technical means and effects of the present invention in achieving its intended purpose, the following detailed description of the specific implementation methods, structures, features, and effects of the present invention, in conjunction with the accompanying drawings and preferred embodiments, is provided below.

[0016] Please see Figure 1-2This invention provides a technical solution: a vacuum acid-adding machine for lead-acid battery processing, comprising a base plate 1 and a top plate 3 fixed above the base plate 1. A vacuum pump 4 and an acid-adding tank 5 are fixedly connected to the top of the top plate 3. A lifting plate 8, driven by a cylinder, moves up and down at the bottom of the top plate 3. The vacuum pump 4 has a vacuum pipe 7 connected to its suction port. One end of the vacuum pipe 7 passes through the lifting plate 8 and extends to the bottom of the lifting plate 8. The vacuum pipe 7 is fixedly connected to the inner cavity of the lifting plate 8. An acid injection pipe 6 is connected to the bottom of the acid-adding tank 5. One end of the acid injection pipe 6 penetrates the surface of the vacuum pipe 7 and extends to the bottom of the acid injection pipe 6. A discharge section 8 is provided at the bottom of the acid injection pipe 6. An annular retaining ring 15 is fixedly connected to the inner cavity of the vacuum pipe 7. A lifting ring 14 is slidably fitted onto the surface of the acid injection pipe 6 within the inner cavity of the vacuum pipe 7. The outer diameter of the lifting ring 14 is larger than the inner diameter of the annular retaining ring 15. A connecting rod 13 extending to the bottom of the vacuum pipe 7 is fixedly connected to the bottom of the lifting ring 14. A connecting plate 12 is fixedly connected to the bottom of the connecting rod 13. A movable plate 9 is fixedly connected to one side. A sealing plate 10 adapted to the bottom of the discharge section 8 is fixed to the top of the movable plate 9. A through groove is opened in the inner cavity of the movable plate 9. The bottom of the acid injection pipe 6 is fixedly connected to the top of the movable plate 9 through an elastic sealing strip 11. When the battery is fixed, the lifting plate 8 drives the vacuum pipe 7 and the acid injection pipe 6 to descend and insert into the acid injection port of the battery. At this time, the sealing gasket around the vacuum pipe 7 is squeezed and sealed. Then, a vacuum is drawn. During the vacuuming, the lifting ring 14 is adsorbed under negative pressure. The lifting ring 14 drives the movable plate 9 to move upward through the connecting rod 13 and the connecting plate 12. The discharge section 8 at the bottom of the acid injection pipe 6 is sealed by the sealing plate 10. At this time, a vacuum is drawn. After the vacuuming is completed, acid needs to be added. The acid injection pipe 6 is started. The acid liquid impacts the movable plate 9 downward, driving the movable plate 9 to move downward. At this time, the movable plate 9 drives the lifting ring 14 to move downward and squeeze the annular retaining ring 15 to form a seal. The self-adaptive structure can automatically open and close the pipe to prevent mutual interference.

[0017] Both the vacuum pipe 7 and the acid injection pipe 6 have corrugated sections in the middle section, which can move up and down with the lifting plate 8. The corrugated section inside the vacuum pipe 7 has a reinforcing steel ring to ensure its strength.

[0018] A positioning platform 2 is fixedly connected to the top of the base plate 1. The top of the positioning platform 2 is provided with a positioning groove that matches the bottom of the battery. The battery is positioned by the positioning groove, so that the acid filling port of the battery can be aligned with the acid injection pipe 6 and vacuum pipe 7 above.

[0019] A sealing ring is fixedly connected to the bottom of the lifting ring 14. When the bottom of the lifting ring 14 is pressed against the top of the annular retaining ring 15, the sealing ring expands to seal.

[0020] The elastic sealing strip 11 forms a circle around the sealing plate 10 on the surface of the top plate 3.

[0021] The working principle of this invention is as follows: First, place the lead-acid battery to be added with acid on the positioning platform 2 on top of the base plate 1. The acid injection port of the battery is automatically aligned with the vacuum pipe 7 and the acid injection pipe 6 above under the guidance of the positioning groove.

[0022] Next, the cylinder is activated, driving the lifting plate 8 to move downwards, which in turn lowers the vacuum pipe 7 fixed on the lifting plate 8 and the acid injection pipe 6 running through it. The bottom of the vacuum pipe 7 is inserted into the battery's acid injection port, and a sealing gasket around it is used to achieve a compression seal.

[0023] Vacuuming Stage: The vacuum pump 4 is activated, and a vacuum is created inside the sealed battery through the vacuum pipe 7. Under the negative pressure generated by the vacuuming, the lifting ring 14 inside the vacuum pipe 7 is drawn upward. The lifting ring 14, through the connecting rod 13 and the connecting plate 12, drives the movable plate 9 and the sealing plate 10 fixed thereon to move upward together, so that the sealing plate 10 tightly seals and blocks the discharge section 8 at the bottom of the acid injection pipe 6. This state ensures that the acid injection channel is completely blocked during the vacuuming process, preventing air from flowing back into the acid injection pipe 6 and ensuring vacuuming efficiency.

[0024] Acid Addition Stage: Once the battery reaches the predetermined vacuum level, the acid addition system is activated, and the electrolyte in the acid addition tank 5 is transported downwards through the acid injection pipe 6. The acid impacts the movable plate 9 or sealing plate 10 of the sealed discharge section 8, generating downward pressure. This pressure overcomes the negative pressure adsorption force, pushing the movable plate 9, connecting plate 12, and connecting rod 13 downwards as a whole, thereby causing the lifting ring 14 to move downwards until the bottom of the lifting ring 14, possibly with a sealing ring, tightly presses against the top of the annular retaining ring 15, forming a new seal and isolating the upper space of the vacuum pipe 7. At the same time, as the movable plate 9 moves downwards, the sealing plate 10 disengages from the discharge section 8, the channel of the acid injection pipe 6 is opened, and the electrolyte smoothly flows through the discharge section 8 into the vacuumed battery. The elastic sealing strip 11 plays a dynamic sealing and connecting role during the movement of the movable plate 9.

[0025] After acid addition is completed, the acid addition system is turned off, and the cylinder lifts the lifting plate 8, so that the entire acid injection head is detached from the battery, completing one working cycle.

[0026] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention in any way. Although the present invention has been disclosed above with reference to preferred embodiments, it is not intended to limit the present invention. Any person skilled in the art can make some modifications or alterations to the above-disclosed technical content to create equivalent embodiments without departing from the scope of the present invention. Any simple modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of the present invention without departing from the scope of the present invention shall still fall within the scope of the present invention.

Claims

1. A vacuumizing and acid-adding machine for processing lead storage batteries, comprising a bottom plate (1) and a top plate (3) fixed above the bottom plate (1), characterized in that: The top part of the top plate (3) is respectively fixedly connected with a vacuum pump (4) and an acid adding box (5), the bottom of the top plate (3) is driven by a gas cylinder to have an up-down moving lifting plate (8), the suction port of the vacuum pump (4) is communicated with a vacuum pipeline (7), one end of the vacuum pipeline (7) penetrates through the lifting plate (8) and extends below the lifting plate (8), the vacuum pipeline (7) is fixedly connected with the inner cavity of the lifting plate (8), the bottom of the acid adding box (5) is communicated with an acid injection pipeline (6), one end of the acid injection pipeline (6) penetrates through the surface of the vacuum pipeline (7) and extends below the acid injection pipeline (6), the bottom of the acid injection pipeline (6) is provided with a discharging section (8), the inner cavity of the vacuum pipeline (7) is fixedly connected with an annular retaining ring (15), the acid injection pipeline (6) is slidably sleeved with a lifting ring (14) on the surface of the inner cavity of the vacuum pipeline (7), the outer diameter of the lifting ring (14) is greater than the inner diameter of the annular retaining ring (15), the bottom of the lifting ring (14) is fixedly connected with a connecting rod (13) extending below the vacuum pipeline (7), the bottom of the connecting rod (13) is fixedly connected with a connecting plate (12), one side of the connecting plate (12) is fixedly connected with a movable plate (9), the top of the movable plate (9) is fixedly connected with a sealing plate (10) matched with the bottom of the discharging section (8), the inner cavity of the movable plate (9) is provided with a through groove, and the bottom of the acid injection pipeline (6) is fixedly connected with the top of the movable plate (9) through an elastic sealing band (11).

2. The vacuum and acid filling machine for lead storage battery processing according to claim 1, characterized in that: The middle sections of the vacuum pipeline (7) and the acid injection pipeline (6) are provided with corrugated sections, and the corrugated section in the vacuum pipeline (7) has a reinforcing steel ring.

3. The vacuum and acid machine for processing lead storage batteries according to claim 1, characterized in that: The top of the bottom plate (1) is fixedly connected with a positioning table (2), and the top of the positioning table (2) is provided with a positioning groove matched with the bottom of the battery.

4. The vacuum and acid machine for processing lead storage batteries according to claim 1, characterized in that: The bottom of the lifting ring (14) is fixedly connected with a sealing ring, and when the bottom of the lifting ring (14) is extruded with the top of the annular retaining ring (15), the sealing ring expands to seal.

5. The vacuum and acid machine for processing lead storage batteries according to claim 1, characterized in that: The elastic sealing band (11) forms a circle around the sealing plate (10) on the surface of the top plate (3).

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