Acid adding equipment for lead-acid battery production

Abstract

The application relates to the technical field of battery production, in particular to lead-acid battery production acid adding equipment, which comprises a machine base, a conveying assembly and a support frame are installed on the upper end of the machine base, a battery shell is conveyed on the conveying assembly, a support plate is installed at the front end of the support frame, an acid adding assembly is arranged in the support plate, the acid adding assembly comprises a liquid injection mechanism and a leakage prevention mechanism, the liquid injection mechanism comprises guide rods, lifting seats, positioning blocks and injection heads, the guide rods are slidably connected in the support plate, the lifting seats are slidably connected on the circumferential surface of the guide rods, the first springs are fixedly connected between the guide rods and the lifting seats, the output end of the electric push rod installed on the upper end of the support plate is fixedly connected with the lifting seat, the positioning blocks are equidistantly installed on the surface of the lifting seat, and the injection heads are installed in the positioning blocks, under the action of the acid adding assembly, the injection heads below are blocked, the lead-acid liquid remaining at the lower end of the injection heads is shaken off, and the liquid dripping of the subsequent injection heads is avoided.

Description

Technical Field

[0001] This invention relates to the field of battery manufacturing technology, and more specifically to an acid-adding device for lead-acid battery production. Background Technology

[0002] A lead-acid battery is a type of rechargeable battery whose electrodes are mainly made of lead and its oxides, and whose electrolyte is sulfuric acid solution. In the discharged state, the positive electrode is mainly composed of lead dioxide, and the negative electrode is mainly composed of lead; in the charged state, the main components of both the positive and negative electrodes are lead sulfate.

[0003] The shortcomings of existing technology: In the production process of lead-acid batteries, lead-acid liquid needs to be injected into the battery casing. However, after the injection is completed, when the lead-acid liquid dispensing head separates from the battery casing, a small amount of lead-acid liquid will drip into the outside environment. Over time, this will accumulate and affect the surrounding working environment. At the same time, the acid mist generated by the lead-acid liquid will also be harmful to the human body. Therefore, we have proposed an acid adding device for lead-acid battery production. Summary of the Invention

[0004] In order to overcome the above-mentioned defects of the prior art, the present invention provides an acid addition device for lead-acid battery production to solve the problems existing in the background art.

[0005] This invention provides the following technical solution: an acid-adding device for lead-acid battery production, comprising a base, a conveying assembly and a support frame installed on the upper end of the base, a battery casing being conveyed on the conveying assembly, a support plate installed at the front end of the support frame, an acid-adding assembly disposed within the support plate, the acid-adding assembly comprising an injection mechanism and a leak-proof mechanism, the injection mechanism comprising a guide rod, a lifting seat, a positioning block and an injection head, multiple guide rods being slidably connected within the support plate, the lifting seat being slidably connected on the circumferential surface of the guide rods, a first spring being fixedly connected between the guide rod and the lifting seat, an electric push rod output end installed on the upper end of the support plate being fixedly connected to the lifting seat, multiple positioning blocks being equidistantly installed on the surface of the lifting seat, and the injection heads being installed within the positioning blocks;

[0006] The leak-proof mechanism includes a liquid outlet cylinder, a connecting ring, a sealing block, and a connecting rod. The liquid outlet cylinder is slidably connected inside the filling head. Multiple support blocks installed on the circumferential surface of the liquid outlet cylinder are slidably connected to the filling head. The connecting rod is installed at the lower end of the support block and is slidably connected to the filling head. A second spring is installed between the support block and the filling head. The connecting ring is installed inside the filling head, and multiple sealing blocks are installed inside the connecting ring.

[0007] Preferably, the filling head is rotatably connected to multiple sets of rotating rods, the circumferential surface of the rotating rods is equipped with a limiting plate, a third spring is installed between the limiting plates, a limiting groove is opened on the surface of the support block, a closing frame is slidably connected to the filling head, the extrusion groove opened in the closing frame is slidably connected to the limiting plate, and a fourth spring is installed between the closing frame and the filling head.

[0008] Preferably, a water pump and a diverter are installed on the upper end of the support plate. The water pump and the diverter are connected by a first connecting pipe. The output end of the diverter is connected to the filling head through a first flexible hose. The liquid extraction pipe installed at the input end of the water pump is connected to an external storage tank for storing lead-acid liquid.

[0009] Preferably, a negative pressure pump and a diversion pipe are installed on the upper end of the support plate. The negative pressure pump and the diversion pipe are connected by a second connecting pipe. The output end of the diversion pipe is connected to the filling head through a second flexible hose. A negative pressure pipe is installed inside the filling head. The second flexible hose is connected to the negative pressure pipe. The output end of the negative pressure pump is connected to the input end of the purification box installed on the upper end of the base through an output pipe.

[0010] Preferably, the purification chamber is provided with a filtration mechanism, which includes a rotating column, a mounting plate, and filter cylinders. The rotating column is rotatably connected inside the purification chamber, the mounting plate is installed on the circumferential surface of the rotating column, and multiple filter cylinders are installed in mounting holes opened on the surface of the mounting plate. A sealing seat is slidably connected inside the purification chamber, and a fifth spring is installed between the sealing seat and the purification chamber.

[0011] Preferably, a ratchet is mounted on the circumferential surface of the rotating column, and a rotating cylinder is rotatably connected to the rear end of the support frame via a rotating shaft. A drive gear, a drive rod, and a limit wheel are mounted on the circumferential surface of the rotating cylinder. A guide frame is installed between the machine base and the support plate. A toothed plate mounted on the circumferential surface of the guide frame meshes with the drive gear. A sixth spring is installed between the toothed plate and the guide frame. A mounting frame is installed at the upper end of the machine base, and multiple trigger blocks are equidistantly slidably connected within the mounting frame.

[0012] Preferably, the connecting plate mounted on the surface of the lifting seat is slidably connected to the support frame, a rack is mounted on the rear end of the connecting plate, a one-way gear and a first bevel gear are mounted on the circumferential surface of the linkage shaft rotatably connected to the rear end of the support plate, the one-way gear meshes with the rack, a guide shaft and a threaded rod are mounted inside the mounting frame, an inclined block is slidably connected to the circumferential surface of the guide shaft, the inclined block is threadedly connected to the threaded rod and slidably connected to the trigger block, and a second bevel gear mounted on the upper end of the threaded rod meshes with the first bevel gear.

[0013] Preferably, the conveying assembly includes a conveying frame, connecting rollers, a conveyor belt, and a positioning seat. The conveying frame is installed on the upper end of the machine base, the connecting rollers are rotatably connected inside the conveying frame, the conveyor belt is connected between the connecting rollers, the positioning seat is installed inside the conveying frame, and the rollers rotatably connected inside the positioning seat are slidably connected to the battery casing.

[0014] The technical effects and advantages of this invention are as follows:

[0015] This invention controls the operation of an electric push rod, which lowers the lifting seat, causing the filling head to press against the filling hole of the battery casing. Simultaneously, the outlet cylinder rises and separates from the sealing block, opening the lower end of the filling head. Lead-acid liquid can then be delivered into the filling head, entering the cavity of the battery casing and achieving the effect of adding acid to the battery casing. After adding acid, when the filling head rises and returns to its original position slightly, the outlet cylinder quickly descends and returns to its original position via the action of a second spring. This not only seals the bottom of the filling head but also causes vibration below the filling head, dislodging any remaining lead-acid liquid and preventing subsequent dripping.

[0016] This invention delivers acid mist into a purification chamber, where it is filtered by a filter cartridge to remove harmful substances. When the filtration efficiency of the filter cartridge decreases, the filter cartridge can be switched according to the operating frequency of the liquid injection mechanism, thus achieving automatic filter cartridge replacement, reducing the frequency of manual replacement, and ensuring the filtration effect of the acid mist. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0018] Figure 2 This is a schematic diagram of the rear view structure in this invention;

[0019] Figure 3 This is a schematic diagram of the acid addition component in this invention;

[0020] Figure 4 This is a schematic diagram of the filling head structure in this invention;

[0021] Figure 5 This is a cross-sectional structural diagram of the filling head in this invention;

[0022] Figure 6 This is a schematic diagram of the front cross-section of the filling head in this invention;

[0023] Figure 7 This is a schematic diagram of the structure of the filling head in cross-section on the left side in this invention;

[0024] Figure 8 This is a cross-sectional structural schematic diagram of the liquid outlet cylinder in this invention;

[0025] Figure 9 This is a schematic diagram of the limiting plate in this invention;

[0026] Figure 10 This is a schematic diagram of the structure of the limiting plate restricting the support block in this invention;

[0027] Figure 11 This is a schematic diagram of the structure of the extrusion groove near the limiting plate in this invention;

[0028] Figure 12 This is a schematic diagram of the structure in which the limiting plate is located inside the extrusion groove in this invention;

[0029] Figure 13 This is a schematic diagram of the structure of the liquid outlet cylinder when the filling head is lifted and then springs back in this invention;

[0030] Figure 14 This is a schematic diagram of the structure of the purification box in this invention;

[0031] Figure 15 This is a schematic diagram of the rear cross-section of the purification box in this invention;

[0032] Figure 16 This is a cross-sectional view of the right side of the purification box in this invention;

[0033] Figure 17 This is a schematic diagram of the rack structure in this invention;

[0034] Figure 18 This is a schematic diagram of the ratchet and the limiting wheel in this invention;

[0035] Figure 19 This is a cross-sectional structural diagram of the toothed plate and mounting bracket in this invention.

[0036] The attached figures are labeled as follows: 1. Base; 101. Support frame; 102. Support plate; 2. Conveying assembly; 201. Conveying frame; 202. Connecting roller; 203. Conveyor belt; 204. Positioning seat; 205. Roller; 3. Battery casing; 4. Acid adding assembly; 41. Liquid injection mechanism; 411. Guide rod; 412. Lifting seat; 413. First spring; 414. Electric push rod; 415. Positioning block; 416. Injection unit. 42. Head; 42. Leak-proof mechanism; 421. Liquid outlet cylinder; 422. Support block; 423. Connecting rod; 424. Second spring; 425. Connecting ring; 426. Sealing block; 427. Rotating rod; 428. Limiting plate; 429. Third spring; 4210. Limiting groove; 4211. Closing frame; 4212. Squeezing groove; 4213. Fourth spring; 5. Water pump; 501. Diverter cylinder; 502. First connection 503. First flexible hose; 504. Suction hose; 6. Negative pressure pump; 601. Diverter hose; 602. Second connecting hose; 603. Second flexible hose; 604. Negative pressure hose; 605. Output hose; 606. Purification box; 7. Filtration mechanism; 701. Rotating column; 702. Mounting plate; 703. Filter cartridge; 704. Sealing seat; 705. Fifth spring; 8. Ratchet; 801. Rotating shaft; 802. Rotating... 803. Moving cylinder; 804. Drive gear; 805. Drive rod; 806. Limit wheel; 807. Guide frame; 808. Gear plate; 809. Sixth spring; 8010. Mounting bracket; 8010. Trigger block; 901. Connecting plate; 902. Rack; 903. Linkage shaft; 904. One-way gear; 905. First bevel gear; 906. Guide shaft; 907. Threaded rod; 908. Inclined block; 909. Second bevel gear. Detailed Implementation

[0037] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings. In addition, the forms of the various structures described in the following embodiments are merely illustrative. The acid-adding equipment for lead-acid battery production involved in the present invention is not limited to the structures described in the following embodiments. All other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0038] like Figure 1-5As shown, in one embodiment, an acid-adding device for lead-acid battery production is proposed, including a base 1, a conveying assembly 2 and a support frame 101 installed on the upper end of the base 1, a battery case 3 being conveyed on the conveying assembly 2, a support plate 102 installed at the front end of the support frame 101, an acid-adding assembly 4 being provided inside the support plate 102, the acid-adding assembly 4 including an injection mechanism 41 and a leak-proof mechanism 42, the injection mechanism 41 including a guide rod 411, a lifting seat 412, a positioning block 415 and an injection head 416, multiple guide rods 411 being slidably connected inside the support plate 102, the lifting seat 412 being slidably connected to the circumferential surface of the guide rods 411, a first spring 413 being fixedly connected between the guide rods 411 and the lifting seat 412, an electric push rod 414 installed on the upper end of the support plate 102 having its output end fixedly connected to the lifting seat 412, multiple positioning blocks 415 being equidistantly installed on the surface of the lifting seat 412, and the injection heads 416 being installed inside the positioning blocks 415;

[0039] The leak prevention mechanism 42 includes a liquid outlet cylinder 421, a connecting ring 425, a sealing block 426, and a connecting rod 423. The liquid outlet cylinder 421 is slidably connected inside the filling head 416. Multiple support blocks 422 installed on the circumferential surface of the liquid outlet cylinder 421 are slidably connected to the filling head 416. The connecting rod 423 is installed at the lower end of the support block 422 and is slidably connected to the filling head 416. A second spring 424 is installed between the support block 422 and the filling head 416. The connecting ring 425 is installed inside the filling head 416, and multiple sealing blocks 426 are installed inside the connecting ring 425.

[0040] In practical application, the conveying assembly 2 transports the battery casing 3 to the liquid injection position. Then, the electric push rod 414 is controlled to operate, driving the lifting seat 412 to descend. At the same time, through the cooperation of the first spring 413 and the guide rod 411, the filling head 416 is pressed against the liquid injection hole of the battery casing 3. Meanwhile, the connecting rod 423 is pushed upward and retracted into the filling head 416, thereby driving the support block 422 and the liquid outlet cylinder 421 to rise and separate from the sealing block 426, so that the lower end of the filling head 416 is opened. Then, lead-acid liquid can be delivered into the filling head 416, so that the liquid passes through the connecting ring 425 and the sealing block 426 and enters the cavity of the battery casing 3, realizing the effect of adding acid to the battery casing 3.

[0041] After acid addition is completed, the output end of the control electric push rod 414 rises and resets, driving the lifting seat 412 and the filling head 416 to rise and separate from the liquid injection hole of the battery case 3. When the filling head 416 rises and resets to a small position, before the filling head 416 is completely removed from the liquid injection hole of the battery case 3, the second spring 424 pushes the support block 422 and the liquid outlet cylinder 421 to descend. The liquid outlet cylinder 421 will immediately descend and reset. Then the sealing block 426 will seal the through hole at the lower end of the liquid outlet cylinder 421. At the same time, when the liquid outlet cylinder 421 resets downward, it descends in a spring-like state. When the liquid outlet cylinder 421 is fully reset, it will impact the connecting ring 425, thereby causing a certain vibration at the lower end of the filling head 416. This can effectively shake the residual lead-acid liquid at the lower end of the filling head 416 into the battery case 3. After the liquid outlet cylinder 421 and the sealing block 426 overlap, the situation of liquid dripping from the filling head 416 is completely avoided.

[0042] like Figure 3-13 As shown, in one embodiment, multiple sets of rotating rods 427 are rotatably connected inside the filling head 416. Limiting plates 428 are installed on the circumferential surface of the rotating rods 427. A third spring 429 is installed between the limiting plates 428. A limiting groove 4210 is opened on the surface of the support block 422. A closing frame 4211 is slidably connected inside the filling head 416. The extrusion groove 4212 opened inside the closing frame 4211 is slidably connected to the limiting plate 428. A fourth spring 4213 is installed between the closing frame 4211 and the filling head 416.

[0043] In practical application, when the filling head 416 is in contact with the filling hole of the battery casing 3, the closing frame 4211 first retracts into the filling head 416, followed by the connecting rod 423. When the connecting rod 423 retracts into the filling head 416, it simultaneously drives the support block 422 and the liquid outlet cylinder 421 to rise relative to the filling head 416. During the rising process, the extrusion groove 4212 on the surface of the support block 422 slides against the limiting plate 428, thereby pushing the rotating rod 427 to rotate and causing the limiting plate 428 to retract. When the connecting rod 423 is flush with the lower end of the filling head 416, the support block 422 will pass over the limiting plate 428. Subsequently, through the action of the third spring 429, the limiting plate 428 opens and resets to both sides. After acid is added to the battery casing 3, the lifting seat 412 and the filling head 41 are controlled. 6. During the upward reset, the support block 422 is blocked by the open limiting plate 428 and will not descend relative to the filling head 416. At this time, the fourth spring 4213 pushes the closing frame 4211 to descend. When the squeezing groove 4212 in the closing frame 4211 contacts the limiting plate 428, it will squeeze the limiting plate 428 and cause it to close. At this time, the limiting groove 4210 on the surface of the support block 422 will pass through the limiting plate 428. Through the action of the second spring 424, the support block 422 and the liquid outlet cylinder 421 will be pushed to descend and reset quickly. This not only seals the bottom of the filling head 416, but also causes vibration below the filling head 416, shaking off the residual lead acid liquid at the bottom of the filling head 416 and preventing liquid from dripping from the filling head 416 in the future.

[0044] like Figure 3 As shown, in one embodiment, a water pump 5 and a diverter cylinder 501 are installed on the upper end of the support plate 102. The water pump 5 and the diverter cylinder 501 are connected by a first connecting pipe 502. The output end of the diverter cylinder 501 is connected to the filling head 416 through a first flexible hose 503. The liquid extraction pipe 504 installed at the input end of the water pump 5 is connected to an external storage tank for storing lead-acid liquid.

[0045] In practical application, the present invention controls the operation of the water pump 5, and then the liquid extraction pipe 504 extracts the lead-acid liquid from the external storage tank. Then, through the action of the first connecting pipe 502, the diverter 501 and the first hose 503, it is transported to multiple filling heads 416, and finally replenished into the battery case 3 through the filling heads 416, thereby completing the battery acid filling operation.

[0046] like Figure 2 , 3As shown in Figure 5, in one embodiment, a negative pressure pump 6 and a diversion pipe 601 are installed on the upper end of the support plate 102. The negative pressure pump 6 and the diversion pipe 601 are connected by a second connecting pipe 602. The output end of the diversion pipe 601 is connected to the filling head 416 through a second flexible hose 603. A negative pressure pipe 604 is installed inside the filling head 416. The second flexible hose 603 is connected to the negative pressure pipe 604. The output end of the negative pressure pump 6 is connected to the input end of the purification box 606 installed on the upper end of the base 1 through an output pipe 605.

[0047] In practical applications, during the acid addition process of the battery, the negative pressure pump 6 is controlled to operate. The negative pressure pump 6 draws gas from the cavity of the battery casing 3 through the second connecting pipe 602, the diverting pipe 601, the second flexible hose 603, and the negative pressure pipe 604, creating a negative pressure environment inside the cavity of the battery casing 3. The pressure difference allows the acid to be injected into the battery more quickly, significantly improving the acid addition efficiency. At the same time, the acid mist generated during the acid addition process can be extracted and transported to the purification box 606 through the output pipe 605 for filtration, intercepting harmful substances in the acid mist and preventing it from spreading and polluting the surrounding environment.

[0048] like Figure 14-17 As shown, in one embodiment, a filtration mechanism 7 is provided inside the purification box 606. The filtration mechanism 7 includes a rotating column 701, a mounting plate 702, and filter cylinders 703. The rotating column 701 is rotatably connected inside the purification box 606. The mounting plate 702 is installed on the circumferential surface of the rotating column 701. Multiple filter cylinders 703 are installed in mounting holes opened on the surface of the mounting plate 702. A sealing seat 704 is slidably connected inside the purification box 606. A fifth spring 705 is installed between the sealing seat 704 and the purification box 606.

[0049] In practical application, after the acid mist is delivered into the purification box 606, it is filtered by the filter cartridge 703 at the output end of the purification box 606 and the corresponding position of the filter cartridge 703. After a long period of filtration, the filtration effect of the filter cartridge 703 will decrease. By controlling the rotation of the rotating column 701, the rotating column 701 drives the mounting plate 702 to rotate, thereby achieving the effect of automatically switching the filter cartridge 703. At the same time, the fifth spring 705 pushes the sealing seat 704 in real time, and the sealing seat 704 is tightly fitted with the filter cartridge 703, which can ensure the sealing effect of the filter cartridge 703 and prevent harmful gases from spreading to the outside without filtration.

[0050] like Figure 14-19As shown, in one embodiment, a ratchet 8 is mounted on the circumferential surface of the rotating column 701, and a rotating cylinder 802 is rotatably connected to the rear end of the support frame 101 via a rotating shaft 801. A drive gear 803, a drive rod 804, and a limit wheel 805 are mounted on the circumferential surface of the rotating cylinder 802. A guide frame 806 is installed between the base 1 and the support plate 102. A toothed plate 807 mounted on the circumferential surface of the guide frame 806 meshes with the drive gear 803. A sixth spring 808 is installed between the toothed plate 807 and the guide frame 806. A mounting frame 809 is mounted on the upper end of the base 1, and multiple trigger blocks 8010 are equidistantly slidably connected inside the mounting frame 809.

[0051] In practical application, the trigger block 8010 restricts the lower position of the toothed plate 807. When the trigger block 8010 moves to the right and does not coincide with the lower end of the toothed plate 807, the sixth spring 808 will push the toothed plate 807 downward through the action of the sixth spring 808, which will drive the drive gear 803 to rotate. The drive gear 803 will drive the rotating cylinder 802, the drive rod 804 and the limit wheel 805 to rotate. With the rotation of the drive rod 804 and the limit wheel 805, the ratchet 8 will be driven to rotate at a specified angle, thereby achieving the effect of precise control of the switching of the filter cylinder 703.

[0052] like Figure 16-19 As shown, in one embodiment, the connecting plate 9 mounted on the surface of the lifting seat 412 is slidably connected to the support frame 101. A rack 901 is mounted on the rear end of the connecting plate 9. A one-way gear 903 and a first bevel gear 904 are mounted on the circumferential surface of the linkage shaft 902 rotatably connected to the rear end of the support plate 102. The one-way gear 903 meshes with the rack 901. A guide shaft 905 and a threaded rod 906 are mounted inside the mounting frame 809. An inclined block 907 is slidably connected to the circumferential surface of the guide shaft 905. The inclined block 907 is threadedly connected to the threaded rod 906 and slidably connected to the trigger block 8010. A second bevel gear 908 mounted on the upper end of the threaded rod 906 meshes with the first bevel gear 904.

[0053] In practical application, when the injection mechanism 41 operates continuously, the lifting seat 412 will continuously reciprocate, thereby driving the connecting plate 9 to move up and down. The connecting plate 9 drives the rack 901 to move synchronously, which in turn drives the one-way gear 903 to rotate in one direction. The one-way gear 903 drives the linkage shaft 902 to rotate in one direction, which in turn drives the first bevel gear 904 to rotate. The first bevel gear 904 drives the threaded rod 906 to rotate through the second bevel gear 908, and the threaded rod 906 drives the inclined block 907 to rotate. As the device continues to descend, when the inclined block 907 contacts the trigger block 8010, the continuously descending inclined block 907 pushes the trigger block 8010 to the right, releasing the trigger block 8010 from restricting the descent position of the toothed plate 807. At this point, the toothed plate 807 immediately descends a short distance, causing the rotating column 701 to rotate intermittently at a specified angle. When the liquid injection mechanism 41 adds a certain amount of lead-acid liquid to the battery casing 3, the inclined block 907 descends to a certain position, pushing the trigger block 8010 to slide within the mounting bracket 809. This achieves the effect of automatically changing the filter cartridge 703 based on the operating frequency of the liquid injection mechanism 41, reducing the frequency of manual replacement and ensuring the filtration effect of acid mist.

[0054] like Figure 1 As shown, in one embodiment, the conveying assembly 2 includes a conveying frame 201, a connecting roller 202, a conveyor belt 203, and a positioning seat 204. The conveying frame 201 is mounted on the upper end of the base 1. The connecting roller 202 is rotatably connected inside the conveying frame 201. The conveyor belt 203 is connected between the connecting rollers 202. The positioning seat 204 is mounted inside the conveying frame 201. The roller 205 rotatably connected inside the positioning seat 204 is slidably connected to the battery casing 3.

[0055] In practical application, when the battery case 3 is located on the conveyor belt 203, the operation of the conveyor belt 203 will drive the battery case 3 to move towards the acid filling component 4. During the movement, the front and rear positions of the battery case 3 can be corrected by the rollers 205 in the positioning seat 204 until the liquid injection holes on the battery case 3 correspond to the positions of the filling head 416. At this time, the conveyor belt 203 stops operating, and then the acid filling operation of the battery case 3 can be completed by the acid filling component 4.

[0056] Finally, the following points should be noted: First, in the description of this application, it should be noted that, unless otherwise specified and limited, the terms "installation", "connection", and "linkage" should be interpreted broadly, and can be mechanical or electrical connections, or internal connections between two components, or direct connections. "Up", "down", "left", "right", etc. are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may change.

[0057] Secondly: The accompanying drawings of the embodiments disclosed in this invention only involve the structures involved in the embodiments disclosed in this invention. Other structures can refer to the general design. In the absence of conflict, the same embodiment and different embodiments of this invention can be combined with each other.

[0058] In conclusion, the above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. An acid-adding device for lead-acid battery production, comprising a base (1), characterized in that: The upper end of the base (1) is equipped with a conveying assembly (2) and a support frame (101). The conveying assembly (2) conveys a battery case (3). A support plate (102) is installed at the front end of the support frame (101). An acid-adding assembly (4) is provided inside the support plate (102). The acid-adding assembly (4) includes a liquid injection mechanism (41) and a leak-proof mechanism (42). The liquid injection mechanism (41) includes a guide rod (411), a lifting seat (412), a positioning block (415), and a filling head (416). Multiple guide rods are provided. All rods (411) are slidably connected in the support plate (102), the lifting seat (412) is slidably connected on the circumferential surface of the guide rod (411), a first spring (413) is fixedly connected between the guide rod (411) and the lifting seat (412), the output end of the electric push rod (414) installed on the upper end of the support plate (102) is fixedly connected to the lifting seat (412), multiple positioning blocks (415) are equidistantly installed on the surface of the lifting seat (412), and the filling head (416) is installed in the positioning block (415); The leak prevention mechanism (42) includes a liquid outlet cylinder (421), a connecting ring (425), a sealing block (426), and a connecting rod (423). The liquid outlet cylinder (421) is slidably connected inside the filling head (416). Multiple support blocks (422) installed on the circumferential surface of the liquid outlet cylinder (421) are slidably connected to the filling head (416). The connecting rod (423) is installed at the lower end of the support block (422) and slidably connected to the filling head (416). A second spring (424) is installed between the support block (422) and the filling head (416). The connecting ring (425) is installed inside the filling head (416), and multiple sealing blocks (426) are installed inside the connecting ring (425). Multiple sets of rotating rods (427) are rotatably connected inside the filling head (416). Limiting plates (428) are installed on the circumferential surface of the rotating rods (427). A third spring (429) is installed between the limiting plates (428). A limiting groove (4210) is opened on the surface of the support block (422). A closing frame (4211) is slidably connected inside the filling head (416). The extrusion groove (4212) opened inside the closing frame (4211) is slidably connected to the limiting plate (428). A fourth spring (4213) is installed between the closing frame (4211) and the filling head (416). The second spring (424) is used to drive the liquid outlet cylinder (421) to rebound downward and cause its bottom end to strike the connecting ring (425) during the upward reset process of the filling head (416) to generate vibration to shake off residual liquid droplets.

2. The acid-adding equipment for lead-acid battery production according to claim 1, characterized in that: A water pump (5) and a diverter cylinder (501) are installed on the upper end of the support plate (102). The water pump (5) and the diverter cylinder (501) are connected by a first connecting pipe (502). The output end of the diverter cylinder (501) is connected to the filling head (416) through a first flexible hose (503). The liquid extraction pipe (504) installed at the input end of the water pump (5) is connected to an external storage tank for storing lead acid liquid.

3. The acid-adding equipment for lead-acid battery production according to claim 1, characterized in that: A negative pressure pump (6) and a diversion pipe (601) are installed on the upper end of the support plate (102). The negative pressure pump (6) and the diversion pipe (601) are connected by a second connecting pipe (602). The output end of the diversion pipe (601) is connected to the filling head (416) through a second flexible hose (603). A negative pressure pipe (604) is installed inside the filling head (416). The second flexible hose (603) is connected to the negative pressure pipe (604). The output end of the negative pressure pump (6) is connected to the input end of the purification box (606) installed on the upper end of the base (1) through an output pipe (605).

4. The acid-adding equipment for lead-acid battery production according to claim 3, characterized in that: The purification box (606) is equipped with a filtration mechanism (7), which includes a rotating column (701), a mounting plate (702), and filter cylinders (703). The rotating column (701) is rotatably connected inside the purification box (606). The mounting plate (702) is installed on the circumferential surface of the rotating column (701). Multiple filter cylinders (703) are installed in mounting holes opened on the surface of the mounting plate (702). A sealing seat (704) is slidably connected inside the purification box (606). A fifth spring (705) is installed between the sealing seat (704) and the purification box (606).

5. The acid-adding equipment for lead-acid battery production according to claim 4, characterized in that: A ratchet (8) is mounted on the circumferential surface of the rotating column (701). A rotating cylinder (802) is rotatably connected to the rear end of the support frame (101) via a rotating shaft (801). A drive gear (803), a drive rod (804), and a limit wheel (805) are mounted on the circumferential surface of the rotating cylinder (802). A guide frame (806) is installed between the base (1) and the support plate (102). A toothed plate (807) mounted on the circumferential surface of the guide frame (806) meshes with the drive gear (803). A sixth spring (808) is installed between the toothed plate (807) and the guide frame (806). A mounting frame (809) is installed on the upper end of the base (1). Multiple trigger blocks (8010) are equidistantly slidably connected inside the mounting frame (809).

6. The acid-adding equipment for lead-acid battery production according to claim 5, characterized in that: The connecting plate (9) mounted on the surface of the lifting seat (412) is slidably connected to the support frame (101). A rack (901) is mounted on the rear end of the connecting plate (9). A one-way gear (903) and a first bevel gear (904) are mounted on the circumferential surface of the linkage shaft (902) rotatably connected to the rear end of the support plate (102). The one-way gear (903) meshes with the rack (901). A guide shaft (905) and a threaded rod (906) are mounted inside the mounting frame (809). An inclined block (907) is slidably connected to the circumferential surface of the guide shaft (905). The inclined block (907) is threadedly connected to the threaded rod (906) and slidably connected to the trigger block (8010). A second bevel gear (908) mounted on the upper end of the threaded rod (906) meshes with the first bevel gear (904).

7. The acid-adding equipment for lead-acid battery production according to claim 1, characterized in that: The conveying assembly (2) includes a conveying frame (201), a connecting roller (202), a conveyor belt (203), and a positioning seat (204). The conveying frame (201) is installed on the upper end of the base (1). The connecting roller (202) is rotatably connected inside the conveying frame (201). The conveyor belt (203) is connected between the connecting rollers (202). The positioning seat (204) is installed inside the conveying frame (201). The roller (205) rotatably connected inside the positioning seat (204) is slidably connected to the battery casing (3).

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