Cover plate pressing device for lead-acid battery production

Abstract

The invention discloses a cover plate pressing device for lead-acid battery production, and relates to the field of lead-acid battery assembly.The cover plate pressing device comprises a mounting plate and a battery body, the top of the battery body is provided with a cover plate body, the bottom of the mounting plate is provided with two symmetrically-distributed mounting sleeve blocks, and the bottoms of the mounting sleeve blocks are provided with a plurality of supporting rods; pressing plates are arranged among the multiple supporting rods. The transverse pressing mechanism is used for transversely and repeatedly pushing and pressing the top of the cover plate body, the transverse pressing mechanism is mounted at the bottom of the mounting plate, and the transverse pressing mechanism comprises a plurality of pressing roller pieces which are arranged below the mounting plate at equal intervals; through the transverse pressing mechanism, a plurality of pressing rollers can perform horizontal reciprocating pushing and pressing on the top of the cover plate body in the process that the pressing plate presses the cover plate body, it is guaranteed that clamping strips on the cover plate body are aligned and pressed into a battery groove of a battery body, the situation of installation deflection is avoided, stress on the top of the cover plate body is more uniform, and the service life of the cover plate body is prolonged. Therefore, the effect of uniform pressing is achieved.

Description

Technical Field

[0001] This invention relates to the field of lead-acid battery assembly, specifically to a cover clamping device for lead-acid battery production. Background Technology

[0002] A lead-acid battery is a secondary battery that uses lead and lead dioxide as electrodes and sulfuric acid solution as electrolyte. During discharge, lead and lead dioxide react chemically with sulfuric acid in the electrolyte to produce lead sulfate and water, and generate electrical energy.

[0003] The pressing of the cover plate is a crucial step in the assembly of lead-acid batteries, directly affecting the battery's sealing performance, safety, and lifespan. After the battery is filled with electrolyte, the pressing device firmly and permanently presses the cover plate to the battery compartment. However, most existing cover plate pressing devices use an electric cylinder to push a pressure plate to press the cover plate into the battery compartment of the battery casing. Since the cover plate needs to be fixed to the battery compartment with glue and clips, if the glue on the cover plate is not applied evenly, pressing the cover plate directly can cause the glue to stick to the clips, preventing the clips from being inserted into the battery compartment and affecting the overall stability of the battery. Summary of the Invention

[0004] The purpose of this invention is to provide a cover clamping device for lead-acid battery production, so as to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: A cover plate clamping device for lead-acid battery production includes: a mounting plate and a battery body disposed below the mounting plate. A cover plate body is disposed on the top of the battery body. Two symmetrically distributed mounting blocks are disposed on the bottom of the mounting plate. Multiple equally spaced support rods are fixedly mounted on the bottom of the mounting blocks, and pressure plates are disposed between the support rods. The device also includes: a transverse pressing mechanism for repeatedly pushing the top of the cover plate body laterally. The transverse pressing mechanism is mounted on the bottom of the mounting plate and includes multiple pressure rollers equally spaced below the mounting plate. The pressure roller can repeatedly press the top of the cover body laterally; the drive mechanism is used to make the pressure roller smoothly push the cover body, the drive mechanism is installed at the bottom of the mounting plate, the drive mechanism includes two symmetrical one-way racks, the one-way racks can make the pressure roller smoothly push the cover body; the positioning mechanism is used to position the side of the battery body, the positioning mechanism is installed at the bottom of the mounting plate, the positioning mechanism includes two side plates symmetrically arranged at the bottom of the mounting plate, the side plates can abut against the outside of the battery body.

[0006] Preferably, the transverse pressing mechanism further includes a mounting frame disposed below the mounting plate, the pressure roller is mounted on the bottom of the mounting frame, a sleeve frame is disposed on the top of the mounting frame, two symmetrically distributed support plates are fixedly mounted on the top of the mounting frame, multiple equally spaced sliding rods are fixedly mounted on both sides of the sleeve frame and between the two support plates, a drive rod is disposed on the inner side of the sleeve frame, and an eccentric wheel is fixedly mounted on the outer side of the drive rod, two mounting blocks are respectively located on both sides of the sleeve frame, the mounting blocks are sleeved on the outer side of adjacent sliding rods, multiple centrally symmetrically distributed hanging rods are fixedly mounted on the top of the mounting blocks, and the top ends of the hanging rods slide through the mounting plate, a first spring is fixedly mounted between the top of the mounting blocks and the bottom of the mounting plate.

[0007] Preferably, the driving mechanism further includes two fixed plates symmetrically fixed between the two mounting sleeves, and the two ends of the driving rod are respectively rotatably mounted between the two fixed plates. A driven rod is rotatably mounted on the side of the fixed plate away from the sleeve frame. A first gear is fixedly mounted on the outer side of the driven rod. A second gear is fixedly mounted on both ends of the driving rod. The second gear meshes with the adjacent first gear, and the size of the second gear is smaller than the size of the first gear. A one-way gear is fixedly mounted on the end of the driven rod away from the fixed plate, and the two one-way gears are respectively located below the two one-way racks.

[0008] Preferably, the positioning mechanism further includes two symmetrically arranged counter-rotating screws on the top of the mounting plate. Each end of the counter-rotating screw is fitted with a fixed sleeve, which is fixedly installed on the top of the mounting plate. Moving blocks are threaded onto the threads at both ends of the counter-rotating screws, and the moving blocks are slidably installed inside the fixed sleeves. An optical shaft for limiting the sliding movement of the moving blocks is installed inside the fixed sleeves. A sliding groove for limiting the sliding movement of the moving blocks is opened on the top of the mounting plate. The top of the side plate is fixedly connected to two adjacent moving blocks. A mounting block is provided on the outer side of the side plate. A U-shaped rod is slidably installed on the inner side of the mounting block. A pad is fixedly installed between the two ends of the U-shaped rod. Two symmetrically distributed second springs are fixedly installed between the pad and the mounting block. A third gear is fixedly installed on the outer side of the counter-rotating screw. A rack plate is slidably installed on the top of the mounting plate, and the two rack plates mesh with the two third gears respectively. The rack plates are fixedly installed on the top of adjacent fixed plates.

[0009] Preferably, a mounting base is fixedly mounted on the top of the mounting plate, and the top of the mounting base is provided with an assembly hole.

[0010] Preferably, the pressure roller is bolted to the bottom of the mounting frame.

[0011] Preferably, a rubber sleeve is fitted on the outer side of the pressure roller.

[0012] Preferably, a plurality of equally spaced support bars are fixedly installed between the support plate and the outer side of the sleeve frame.

[0013] Preferably, two symmetrically distributed guide plates are fixedly installed on the outer side of the one-way rack, and the corresponding sides of the two guide plates are in contact with the outer side of the one-way gear.

[0014] Preferably, the outer side of the side plate is provided with a movable groove for the mounting block to slide and be limited, and a plurality of fixed rods are fixedly installed on the inner side of the movable groove. The mounting block is slidably installed on the outer side of the fixed rods, and a third spring is sleeved on the outer side of the fixed rods. The third spring is fixedly installed between the mounting block and the inner side of the movable groove.

[0015] Compared with the prior art, the beneficial effects of the present invention are: 1. The present invention uses a horizontal pressing mechanism to enable multiple pressure rollers to perform horizontal reciprocating pressure on the top of the cover body during the pressing process of the pressure plate pressing the cover body. This ensures that the locking strip on the cover body is aligned and pressed into the battery slot of the battery body, avoiding misalignment during installation and making the force on the top of the cover body more uniform, thereby achieving a uniform pressing effect.

[0016] 2. The present invention, through a driving mechanism, enables a one-way rack to drive a one-way gear to rotate when the pressure plate and the pressure rollers are in contact with the top of the cover plate body, thereby realizing the horizontal reciprocating movement of multiple pressure rollers and preventing the pressure rollers from swinging back and forth when the mounting plate is reset upward, thus improving the convenience of pressing the cover plate body.

[0017] 3. The present invention, through the positioning mechanism, can bring the side plate close to the outside of the battery body during the downward movement of the mounting plate. The pad on the outside of the side plate can elastically clamp the outside of the battery body, ensuring that the battery body can maintain a stable and firm state when the pressure roller pushes the cover body, thereby improving the stability of the cover body pressing. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the pressure roller and rubber bushing structure in this invention; Figure 3 This is a partial cross-sectional structural diagram of the mounting plate and mounting frame in this invention; Figure 4 This is a partial cross-sectional structural diagram of the mounting sleeve and slide bar in this invention; Figure 5This is a schematic diagram of the pressure plate and support rod structure in this invention; Figure 6 This is a schematic diagram of the unidirectional rack and pinion structure in this invention; Figure 7 This is a partial cross-sectional structural diagram of the movable block and the fixed cylinder in this invention; Figure 8 This is a partial cross-sectional structural diagram of the side plate and mounting block in this invention.

[0019] In the diagram: 1. Mounting plate; 2. Battery body; 3. Cover body; 4. Mounting sleeve; 5. Support rod; 6. Pressure plate; 7. Pressure roller; 8. One-way rack; 9. Side plate; 10. Mounting frame; 11. Sleeve frame; 12. Support plate; 13. Slide rod; 14. Drive rod; 15. Eccentric wheel; 16. Hanging rod; 17. First spring; 18. Fixed plate; 19. Driven rod; 20. First gear; 21. Second gear; 22. Third spring; 23. One-way gear; 24. Opposite-direction screw; 25. Fixed cylinder; 26. Moving block; 27. Mounting block; 28. U-shaped rod; 29. ​​Pad; 30. Second spring; 31. Third gear; 32. Rack plate; 33. Mounting seat; 34. Rubber ring; 35. Support bar; 36. Guide plate; 37. Fixed rod. Detailed Implementation

[0020] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0021] Example 1: Please refer to Figures 1-8 The diagram shows a cover plate pressing device for lead-acid battery production, including a mounting plate 1 and a battery body 2 disposed below the mounting plate 1. The mounting plate 1 is connected to an electric cylinder, which pushes the mounting plate 1 downward. A cover plate body 3 is disposed on the top of the battery body 2. Two symmetrically distributed mounting sleeve blocks 4 are disposed on the bottom of the mounting plate 1. Multiple equally spaced support rods 5 are fixedly installed on the bottom of the mounting sleeve blocks 4, and pressure plates 6 are disposed between the multiple support rods 5. The mounting plate 1 makes the pressure plates 6 below the mounting sleeve blocks 4 contact the top of the cover plate body 3, pressing the cover plate body 3 into the battery slot of the battery body 2, thereby assembling the battery body 2 and the cover plate body 3.

[0022] The transverse pressing mechanism includes multiple pressure rollers 7 equidistantly arranged below the mounting plate 1. The pressure rollers 7 can repeatedly press the top of the cover body 3 laterally. The transverse pressing mechanism also includes a mounting frame 10 arranged below the mounting plate 1. The pressure rollers 7 are installed at the bottom of the mounting frame 10. A sleeve frame 11 is provided at the top of the mounting frame 10. Two symmetrically distributed support plates 12 are fixedly installed at the top of the mounting frame 10. Multiple equally distributed sliding rods 13 are fixedly installed between the two sides of the sleeve frame 11 and the two support plates 12. A drive rod 14 is provided on the inner side of the sleeve frame 11, and the outer side of the drive rod 14 is fixedly installed with... An eccentric wheel 15 is provided, and two mounting blocks 4 are located on both sides of the sleeve frame 11. The mounting blocks 4 are fitted onto the outer side of the adjacent slide rods 13. When the drive rod 14 is running, it can drive the eccentric wheel 15 to rotate. The eccentric wheel 15 pushes the sleeve frame 11 to move, causing the sleeve frame 11 to drive the slide rods 13 to move horizontally back and forth along the inner side of the mounting blocks 4. The slide rods 13 can then push the mounting frame 10 to move horizontally through the support plate 12, causing multiple pressure rollers 7 to move synchronously. Multiple hanging rods 16 are fixedly installed on the top of the mounting blocks 4 in a centrally symmetrical distribution, and the top ends of the hanging rods 16 slide through the mounting plate 1. A first spring 17 is fixedly installed between the top of the mounting plate 1 and the bottom of the mounting plate 4. When the mounting plate 1 moves downward, the first spring 17 and the hanging rod 16 drive the mounting sleeve block 4 to move downward. The mounting sleeve block 4 drives the pressure plate 6 to contact the top of the cover body 3 through the support rod 5. At the same time, the mounting sleeve block 4 drives the pressure roller 7 on the mounting frame 10 to contact the top of the cover body 3 through the sliding rod 13. As the sleeve frame 11 moves left and right back and forth, the pressure roller 7 can push the cover body 3 horizontally back and forth to ensure that the cover body 3 and the battery slot of the battery body 2 are aligned and assembled. The top of the mounting plate 1 is fixed. The mounting plate 1 is fixedly installed with a mounting base 33, and the top of the mounting base 33 has an assembly hole, so that the mounting plate 1 can be assembled with the electric cylinder through the mounting base 33. The pressure roller 7 is connected to the bottom of the mounting frame 10 by bolts, which facilitates the assembly, disassembly and replacement of the pressure roller 7 by the staff. The outer side of the pressure roller 7 is fitted with a rubber sleeve 34, so that the pressure roller 7 can roll the cover plate body 3 through the rubber sleeve 34 to avoid damage to the cover plate body 3. Multiple support strips 35 are fixedly installed between the support plate 12 and the outer side of the sleeve frame 11, which improves the firmness between the sleeve frame 11 and the support plate 12.

[0023] Example 2: Please refer to Figures 2-6This embodiment further illustrates Example 1. The driving mechanism shown in the figure includes two symmetrical one-way racks 8. The one-way racks 8 enable the pressure roller 7 to smoothly push the cover body 3. The driving mechanism also includes two symmetrically fixed plates 18 fixedly installed between two mounting sleeves 4. The two ends of the driving rod 14 are respectively rotatably installed between the two fixed plates 18. A driven rod 19 is rotatably installed on the side of the fixed plate 18 away from the sleeve frame 11. A first gear 20 is fixedly installed on the outer side of the driven rod 19. A second gear 21 is fixedly installed on both ends of the driving rod 14. The second gear 21 meshes with the adjacent first gear 20, and the size of the second gear 21 is smaller than that of the first gear 20. When the driven rod 19 rotates, it can drive the second gear 21 to rotate through the first gear 20. The second gear 21 can then drive the driving rod 14 to rotate, and the rotation speed of the second gear 21 is greater than that of the first gear 20. The rotation speed of gear 20 is controlled by a one-way gear 23 fixedly installed at the end of driven rod 19 away from fixed plate 18. The two one-way gears 23 are located below the two one-way racks 8 respectively. When the pressure plate 6 and pressure roller 7 contact the top of cover body 3, the mounting plate 1 continues to move downward, causing the mounting plate 1 to drive the one-way rack 8 to contact the one-way gear 23. The one-way rack 8 can then drive the one-way gear 23 to rotate, realizing the rotation of driven rod 19. When the mounting plate 1 returns to its original position, the one-way rack 8 can no longer drive the one-way gear 23 to rotate, avoiding the pressure roller 7 from shaking when it moves away from cover body 3, and ensuring the cover body 3 is pressed smoothly. Two symmetrically distributed guide plates 36 are fixedly installed on the outer side of the one-way rack 8, and the corresponding side of the two guide plates 36 is in contact with the outer side of the one-way gear 23, ensuring that the one-way rack 8 and the one-way gear 23 are in stable contact.

[0024] Example 3: Please refer to Figures 1-8This embodiment further illustrates other embodiments. The positioning mechanism shown in the figure includes two side plates 9 symmetrically arranged at the bottom of the mounting plate 1. The side plates 9 can abut against the outer side of the battery body 2. The positioning mechanism also includes two opposing screws 24 symmetrically arranged at the top of the mounting plate 1. Both ends of the opposing screws 24 are fitted with fixing cylinders 25, and the fixing cylinders 25 are fixedly installed on the top of the mounting plate 1. Movable blocks 26 are threaded onto the threads at both ends of the opposing screws 24, and the movable blocks 26 are slidably installed on the inner side of the fixing cylinders 25. The inner side of the fixing cylinders 25 is equipped with an optical shaft for limiting the sliding of the movable blocks 26, so that when the opposing screws 24 rotate, they can drive the two The movable blocks 26 move closer to or further away from each other along the inner side of the fixed cylinder 25 and the outer side of the optical axis. The top of the mounting plate 1 is provided with a sliding groove for the movable blocks 26 to slide in a limited manner. The top of the side plate 9 is fixedly connected to two adjacent movable blocks 26, so that the four movable blocks 26 can drive the two side plates 9 to come close to the outer side of the battery body 2. The outer side of the side plate 9 is provided with a mounting block 27. A U-shaped rod 28 is slidably mounted on the inner side of the mounting block 27. A pad 29 is fixedly mounted between the two ends of the U-shaped rod 28. Two symmetrically distributed second springs 30 are fixedly mounted between the pad 29 and the mounting block 27, so that when the side plate 9 moves, it can drive the U-shaped rod 28 to move through the mounting block 27. The U-shaped rod 28 drives the pad 29 to contact the outside of the battery body 2. Utilizing the elasticity of the second spring 30, the pad 29 presses against the outside of the battery body 2, achieving lateral pressure positioning of the battery body 2 and ensuring the pressure roller 7 smoothly presses against the cover body 3. A third gear 31 is fixedly installed on the outside of the counter-rotating screw 24. A rack plate 32 is slidably installed on the top of the mounting plate 1, and the two rack plates 32 mesh with the two third gears 31 respectively. The rack plates 32 are fixedly installed on the top of the adjacent fixed plates 18, so that when the mounting plate 1 moves downward, the third gear 31 can move along the outside of the rack plate 32, causing the rack plate 32 to be driven by the third gear 31. When the counter-rotating screw 24 rotates, a sliding groove is provided on the outer side of the side plate 9 for the mounting block 27 to slide and be limited. Multiple fixed rods 37 are fixedly installed on the inner side of the sliding groove. The mounting block 27 is slidably installed on the outer side of the fixed rods 37. A third spring 22 is sleeved on the outer side of the fixed rods 37 and fixedly installed between the mounting block 27 and the inner side of the sliding groove. When the pad 29 contacts the outer side of the battery body 2, the mounting block 27 can move along the outer side of the fixed rods 37 as the side plate 9 moves, and compress the third spring 22. This prevents excessive friction between the pad 29 and the battery body 2, which could cause the side plate 9 to be unable to move.

[0025] Working principle: First, the operator aligns the mounting base 33 on the mounting plate 1 with the electric cylinder, places the battery body 2 under the mounting plate 1, and covers the battery slot of the battery body 2 with the cover body 3. The electric cylinder pushes the mounting plate 1 downward, causing the mounting plate 1 to move the mounting sleeve 4 downward via the first spring 17 and the hanging rod 16. The mounting sleeve 4, via the support rod 5, causes the pressure plate 6 to contact the top of the cover body 3, and via the sliding rod 13, causes the pressure roller 7 on the mounting frame 10 to contact the top of the cover body 3. At this time, as the mounting plate 1 moves downward... When the mounting plate 1 compresses the first spring 17, it causes the third gear 31 on the two counter-rotating screws 24 to contact the corresponding rack plate 32. This causes the rack plate 32 to rotate the counter-rotating screws 24 via the third gear 31. The counter-rotating screws 24 then move the two moving blocks 26 along the inner side of the fixed cylinder 25 and the outer side of the optical axis. This causes the four moving blocks 26 to bring the two side plates 9 close to the side of the battery body 2. The side plates 9 move synchronously with the mounting blocks 27 via the fixed rod 37. This causes the mounting blocks 27 to move the pad 29 on the U-shaped rod 28 to contact the battery body. The outer side of the battery body 2 contacts the pad 29, and the reaction force of the battery body 2 on the pad 29 compresses the second spring 30, thereby clamping and positioning the battery body 2. At the same time, the mounting plate 1 drives the one-way rack 8 to contact the one-way gear 23. The one-way rack 8 can then drive the one-way gear 23 to rotate. The one-way gear 23 drives the driven rod 19 to rotate, which in turn drives the second gear 21 to rotate through the first gear 20. The second gear 21 drives the drive rod 14 to rotate, which in turn drives the eccentric wheel 15 to rotate. The eccentric wheel 15 pushes the sleeve frame. 11 moves, causing the sleeve frame 11 to drive the slide rod 13 to move horizontally back and forth along the inner side of the mounting sleeve block 4. The slide rod 13 can then push the mounting frame 10 to move horizontally through the support plate 12, causing multiple pressure rollers 7 to move synchronously. The pressure rollers 7 can then push the cover body 3 horizontally back and forth, making the top of the cover body 3 more evenly stressed and avoiding uneven pressing. This allows the clips on the cover body 3 to align with the battery slot of the battery body 2, thereby achieving the effect of smoothly pressing the cover body 3 and improving the ease of assembly between the cover body 3 and the battery body 2.

[0026] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0027] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A cover sheet pressing device for lead acid battery production, characterized by, The utility model relates to a battery cover plate positioning device, including: The bottom of the mounting plate (1) is provided with two mounting sleeve blocks (4) which are symmetrically distributed, the bottom of the mounting sleeve block (4) is provided with a plurality of supporting rods (5), and a pressing plate (6) is arranged between the plurality of supporting rods (5); Further including: A transverse pressing mechanism is used for repeatedly pushing the top of the cover plate body (3) transversely, the transverse pressing mechanism is installed at the bottom of the mounting plate (1), the transverse pressing mechanism includes a plurality of pressing roller parts (7) which are equidistantly arranged below the mounting plate (1), and the pressing roller parts (7) can repeatedly press the top of the cover plate body (3) transversely; A driving mechanism is used for stably pushing the cover plate body (3) by the pressing roller parts (7), the driving mechanism is installed at the bottom of the mounting plate (1), and the driving mechanism includes two symmetric one-way racks (8), the one-way racks (8) can stably push the cover plate body (3) by the pressing roller parts (7); A positioning mechanism is used for positioning the side surface of the battery body (2), the positioning mechanism is installed at the bottom of the mounting plate (1), and the positioning mechanism includes two side plates (9) which are symmetrically arranged at the bottom of the mounting plate (1), and the side plates (9) can abut against the outer side of the battery body (2).

2. The cover pressing device for lead-acid battery production according to claim 1, characterized in that: The transverse pressing mechanism further includes a mounting frame (10) arranged below the mounting plate (1), the pressing roller parts (7) are installed at the bottom of the mounting frame (10), the top of the mounting frame (10) is provided with a sleeve frame (11), two supporting plates (12) are installed at the top of the mounting frame (10), a plurality of sliding rods (13) are fixedly installed between the two sides of the sleeve frame (11) and the two supporting plates (12), a driving rod (14) is arranged on the inner side of the sleeve frame (11), an eccentric wheel (15) is installed on the outer side of the driving rod (14), the two mounting sleeve blocks (4) are located at the two sides of the sleeve frame (11), the mounting sleeve block (4) is sleeved on the outer side of the adjacent sliding rod (13), a plurality of hanging rods (16) are installed at the top of the mounting sleeve block (4), the top ends of the hanging rods (16) slide through the mounting plate (1), and a first spring (17) is fixedly installed between the top of the mounting sleeve block (4) and the bottom of the mounting plate (1).

3. A cover pressing device for lead-acid battery production according to claim 2, characterized in that: The driving mechanism further comprises two fixed plates (18) installed between the two mounting blocks (4), and the two ends of the driving rod (14) are rotatably installed between the two fixed plates (18), one side of the fixed plate (18) is rotatably installed with a driven rod (19), the outer side of the driven rod (19) is fixedly installed with a first gear (20), the two ends of the driving rod (14) are fixedly installed with a second gear (21), the second gear (21) is engaged with the adjacent first gear (20), one end of the driven rod (19) is fixedly installed with a one-way gear (23), and the two one-way gears (23) are located below the two one-way racks (8) respectively.

4. The cover pressing device for lead-acid battery production according to claim 3, characterized in that: The positioning mechanism further comprises two opposite screw rods (24) arranged on the top of the mounting plate (1), the two ends of the opposite screw rod (24) are sleeved with a fixed cylinder (25), and the fixed cylinder (25) is fixedly installed on the top of the mounting plate (1), the threads of the two ends of the opposite screw rod (24) are threadedly assembled with a moving block (26), and the moving block (26) is slidably installed on the inner side of the fixed cylinder (25), the inner side of the fixed cylinder (25) is installed with an optical axis for limiting sliding of the moving block (26), the top of the mounting plate (1) is provided with a sliding groove for limiting sliding of the moving block (26), the top of the side plate (9) is fixedly connected with two adjacent moving blocks (26), the outer side of the side plate (9) is provided with a mounting block (27), the inner side of the mounting block (27) is slidably installed with a U-shaped rod (28), the two ends of the U-shaped rod (28) are fixedly installed with a backing plate (29), two second springs (30) are installed between the backing plate (29) and the mounting block (27), the outer side of the opposite screw rod (24) is fixedly installed with a third gear (31), the top of the mounting plate (1) is slidably installed with a rack plate (32), and two rack plates (32) are engaged with two third gears (31) respectively, and the rack plate (32) is fixedly installed on the top of the adjacent fixed plate (18).

5. The cover pressing device for lead-acid battery production according to claim 1, characterized in that: The top of the mounting plate (1) is provided with a mounting seat (33), and the top of the mounting seat (33) is provided with an assembly hole.

6. The cover pressing device for lead-acid battery production according to claim 2, characterized in that: The pressure roller (7) is butt jointed with the bottom of the mounting frame (10) through bolts.

7. The cover pressing device for lead-acid battery production according to claim 2, characterized in that: The outer side of the pressure roller (7) is sleeved with a rubber sleeve (34).

8. The cover pressing device for lead-acid battery production according to claim 2, characterized in that: A plurality of supporting strips (35) are installed between the outer side of the supporting plate (12) and the sleeve frame (11).

9. The cover pressing device for lead-acid battery production according to claim 3, characterized in that: The outer side of the one-way rack (8) is provided with two symmetrically distributed guide plates (36), and the outer side of the one-way gear (23) is in contact with the corresponding side of the two guide plates (36).

10. The cover pressing device for lead-acid battery production according to claim 4, characterized in that: The outer side of the side plate (9) is provided with a moving groove for limiting sliding of the mounting block (27), and the inner side of the moving groove is provided with a plurality of fixing rods (37), the mounting block (27) is slidingly installed on the outer side of the fixing rod (37), the outer side of the fixing rod (37) is sleeved with a third spring (22), and the third spring (22) is installed between the mounting block (27) and the inner side of the moving groove.

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