Lithium ion battery pole piece leveling device

Abstract

The utility model discloses a lithium ion battery pole piece leveling device, which relates to the technical field of lithium ion battery production, and comprises a base, a protective plate fixedly connected to the upper surface of the base, a lower die arranged above the base, two symmetrical first mounting mechanisms arranged inside the base, and a partition fixedly connected to the inside of the base, a through hole is formed in the outer surface of the protection plate, a top plate is fixedly connected to the upper surface of the protection plate, and a displacement mechanism is arranged below the top plate and comprises a moving plate. Through the arrangement of the lower die, the first mounting mechanism, the second mounting mechanism and the upper die, during use, the lower die can be quickly disassembled and assembled through the arranged first mounting mechanism, and the upper die can be quickly disassembled and assembled through the arranged second mounting mechanism; the innovative design aims to help workers to quickly replace the damaged lower die and the damaged upper die, so that the overall working efficiency is remarkably improved, and the purpose of efficient operation is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of lithium-ion battery production, in particular to a flattening device for lithium-ion battery electrode sheets. Background Art

[0002] The lithium-ion battery electrode sheet is a key component in the lithium-ion battery and is the core component of the positive and negative electrodes of the lithium-ion battery, which is composed of metal aluminum or copper and the positive and negative electrode materials of the lithium battery. During the production process of lithium-ion batteries, in order to improve the flatness of the surface of the electrode sheet, a flattening device is often used. The device usually includes a short-stroke small automatic punching machine, where the punching machine part consists of an upper die and a lower die of the punching machine. Beside the lower die of the punching machine, a protection plate is placed, and through holes are opened on the protection plate so that the electrode sheet can pass through and be placed on the lower die of the punching machine. When the electrode sheet is placed on the lower die of the punching machine, the upper die of the punching machine moves downward to flatten the electrode sheet.

[0003] Currently, for the lithium-ion battery electrode sheet flattening devices widely used in the market, the fixing methods of the upper and lower dies mostly rely on welding or bolt fastening. This traditional fixing mechanism shows its limitations in practical applications. Specifically, it makes the disassembly and assembly processes of the upper and lower dies relatively cumbersome, which not only increases the operation difficulty of the staff but also brings inconvenience to their quick replacement in case of damage to the upper and lower dies. This inconvenience affects the work efficiency to a certain extent. Therefore, we provide a lithium-ion battery electrode sheet flattening device to solve the above problems. Summary of the Utility Model

[0004] The purpose of the utility model is to make up for the deficiencies of the prior art and provide a flattening device for lithium-ion battery electrode sheets.

[0005] To achieve the above purpose, the utility model provides the following technical solution: A flattening device for lithium-ion battery electrode sheets includes a base. The upper surface of the base is fixedly connected with a protection plate. A lower die is arranged above the base. Two symmetrically arranged first installation mechanisms are arranged inside the base. A partition is fixedly connected inside the base. Through holes are opened on the outer surface of the protection plate. The upper surface of the protection plate is fixedly connected with a top plate. A displacement mechanism is arranged below the top plate. The displacement mechanism includes a moving plate. Two symmetrically arranged second installation mechanisms are arranged above the moving plate. An upper die is arranged below the moving plate.

[0006] Further, the first installation mechanism includes a connecting block and a first movable plate. The upper surface of the connecting block is fixedly connected with the bottom surface of the lower die. The outer surface of the connecting block is inserted into the inside of the base. An iron block is fixedly connected inside the connecting block.

[0007] Furthermore, a magnet is fixedly connected inside the first movable plate. The iron block and the magnet are adsorbed to each other. An activity rod is fixedly connected to the outer surface of the first movable plate. The outer surface of the activity rod is slidably connected to the inside of the base. One end of the activity rod away from the first movable plate is fixedly connected with a handle.

[0008] Furthermore, two symmetrically arranged elastic members are fixedly connected to the outer surface of the first movable plate. One ends of the two elastic members away from the first movable plate are fixedly connected to the inner side wall of the base. Two symmetrically arranged limiting rods are fixedly connected to the inside of the base. The outer surfaces of the two limiting rods are slidably connected to the inside of the first movable plate. The outer surfaces of the two limiting rods are fixedly connected to the inside of the partition plate.

[0009] Furthermore, the displacement mechanism includes a sliding groove opened on the outer surface of the protection plate. A first slider is slidably connected to the inside of the sliding groove. The outer surface of the moving plate is fixedly connected to the outer surface of the first slider. A first hydraulic rod is fixedly connected to the bottom surface of the top plate. The telescopic end of the first hydraulic rod is fixedly connected to the upper surface of the moving plate.

[0010] Furthermore, the second installation mechanism includes a positioning plate. The bottom surface of the positioning plate is fixedly connected to the upper surface of the moving plate. A second hydraulic rod is fixedly connected to the outer surface of the positioning plate. The telescopic end of the second hydraulic rod is fixedly connected to a second movable plate. A second slider is fixedly connected to the bottom surface of the second movable plate.

[0011] Furthermore, a slide rail is fixedly connected to the upper surface of the moving plate. The outer surface of the second slider is slidably connected to the inside of the slide rail. A plug rod is fixedly connected to the outer surface of the second movable plate. A connecting rod is inserted into the inside of the moving plate. The bottom surface of the connecting rod is fixedly connected to the upper surface of the upper die. The outer surface of the plug rod is inserted into the inside of the connecting rod.

[0012] Compared with the prior art, the flattening device for lithium-ion battery electrodes has the following beneficial effects:

[0013] 1. By setting the lower die, the first installation mechanism, the second installation mechanism and the upper die, in use, the first installation mechanism can be used to quickly disassemble and assemble the lower die, and the second installation mechanism can be used to quickly disassemble and assemble the upper die. These innovative designs are aimed at helping the staff to quickly replace the lower die and the upper die when they are damaged, thus significantly improving the overall work efficiency and achieving the goal of efficient operation.

[0014] 2. The utility model is provided with a slide groove, a first hydraulic rod, a movable plate, a first slider, a lower mold and an upper mold. When in use, the first hydraulic rod is turned on to drive the movable plate to move downward, drive the first slider to move inside the slide groove, drive the upper mold to move downward, and the pole piece on the lower mold can be flattened. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a three-dimensional front view structural schematic diagram of the utility model;

[0016] Figure 2 It is a cross-sectional view of a part of the structure of the utility model;

[0017] Figure 3 This is a schematic diagram of a protection plate of the utility model;

[0018] Figure 4 This is a partial structural diagram of the first installation mechanism of the utility model. Figure 1 ;

[0019] Figure 5 This is a partial structural diagram of the first installation mechanism of the utility model. Figure 2 ;

[0020] Figure 6 It is a schematic diagram of the displacement mechanism of the utility model;

[0021] Figure 7 It is a schematic diagram of the second installation mechanism of the utility model.

[0022] In the figure: 1. base; 2. protection plate; 3. lower mold; 4. first mounting mechanism; 401. connecting block; 402. iron block; 403. first movable plate; 404. magnet; 405. movable rod; 406. elastic member; 407. handle; 408. limit rod; 5. partition; 6. through hole; 7. top plate; 8. displacement mechanism; 801. slide groove; 802. first hydraulic rod; 803. movable plate; 804. first slider; 9. second mounting mechanism; 901. positioning plate; 902. second hydraulic rod; 903. second movable plate; 904. second slider; 905. slide rail; 906. plug rod; 907. connecting rod; 10. upper mold. DETAILED DESCRIPTION

[0023] The principles and features of the present invention are described below in conjunction with the accompanying drawings. The examples given are only used to explain the present invention and are not used to limit the scope of the present invention.

[0024] This embodiment provides a flattening device for lithium-ion battery electrodes. By setting the lower die 3, the first mounting mechanism 4, the second mounting mechanism 9, and the upper die 10, during use, the first mounting mechanism 4 can be used to quickly disassemble and assemble the lower die 3, and the second mounting mechanism 9 can be used to quickly disassemble and assemble the upper die 10. These innovative designs are aimed at helping workers quickly replace the lower die 3 and the upper die 10 when they are damaged, thereby significantly improving the overall work efficiency and achieving the goal of efficient operation.

[0025] Embodiment 1

[0026] As Figures 1-7 shown, a flattening device for lithium-ion battery electrodes proposed by the present utility model includes a base 1, and a protection plate 2 is fixedly connected to the upper surface of the base 1.

[0027] The setting of the protection plate 2 isolates the direct contact between the battery body and the lower die 3, prevents the battery body from being damaged during the flattening process, and improves the safety of the battery.

[0028] Above the base 1 is provided with a lower die 3, two symmetrically arranged first mounting mechanisms 4 are arranged inside the base 1, a partition plate 5 is fixedly connected inside the base 1, and through holes 6 are opened on the outer surface of the protection plate 2.

[0029] By setting the partition plate 5, the space inside the base 1 is divided into two parts, and each part is provided with a first mounting mechanism 4. The through holes 6 are provided to facilitate the electrode to pass through the protection plate 2 and be placed on the lower die 3.

[0030] The upper surface of the protection plate 2 is fixedly connected with a top plate 7. Below the top plate 7 is provided with a displacement mechanism 8. The displacement mechanism 8 includes a moving plate 803. Above the moving plate 803 are provided two symmetrically arranged second mounting mechanisms 9. Below the moving plate 803 is provided with an upper die 10.

[0031] Embodiment 2

[0032] As Figures 1-7 shown, this embodiment further describes Embodiment 1. The first mounting mechanism 4 includes a connecting block 401 and a first movable plate 403. The upper surface of the connecting block 401 is fixedly connected to the bottom surface of the lower die 3. The outer surface of the connecting block 401 is inserted into the inside of the base 1. An iron block 402 is fixedly connected inside the connecting block 401.

[0033] A magnet 404 is fixedly connected inside the first movable plate 403. The iron block 402 and the magnet 404 are attracted to each other. An activity rod 405 is fixedly connected to the outer surface of the first movable plate 403. The outer surface of the activity rod 405 is slidably connected to the inside of the base 1. One end of the activity rod 405 far from the first movable plate 403 is fixedly connected with a handle 407.

[0034] The surface of the handle 407 is provided with a layer of hard rubber material, which plays a role in anti-slip and preventing hand abrasion.

[0035] Two symmetrically arranged elastic members 406 are fixedly connected to the outer surface of the first movable plate 403. One end of each of the two elastic members 406 away from the first movable plate 403 is fixedly connected to the inner side wall of the base 1. Two symmetrically arranged limiting rods 408 are fixedly connected to the inside of the base 1. The outer surfaces of the two limiting rods 408 are slidably connected to the inside of the first movable plate 403, and the outer surfaces of the two limiting rods 408 are fixedly connected to the inside of the partition plate 5.

[0036] The elastic member 406 is a spring. Under its elastic force, the rapid reset of the first movable plate 403 and the magnet 404 can be realized. Through the setting of the limiting rod 408, the first movable plate 403 can be limited to prevent the first movable plate 403 from deviating from the movement track.

[0037] During use, pull the handle 407 to drive the movable rod 405 to move, drive the first movable plate 403 to move on the surface of the limiting rod 408, drive the magnet 404 to move. And as the first movable plate 403 moves, the elastic member 406 will be compressed, causing the elastic member 406 to generate elastic force until the adsorption between the magnet 404 and the iron block 402 is released. At this time, by moving the lower die 3 upward, the connecting block 401 can be pulled out from the inside of the base 1, and the disassembly of the damaged lower die 3 can be realized. Subsequently, place the new lower die 3 on the base 1 and insert the connecting block 401 below it into the inside of the base 1. Then, release the handle 407. Under the elastic force of the elastic member 406, the magnet 404 and the iron block 402 are adsorbed to realize the replacement of the lower die 3.

[0038] The displacement mechanism 8 includes a chute 801 opened on the outer surface of the protection plate 2. A first slider 804 is slidably connected to the inside of the chute 801. The outer surface of the moving plate 803 is fixedly connected to the outer surface of the first slider 804. The bottom surface of the top plate 7 is fixedly connected to a first hydraulic rod 802, and the telescopic end of the first hydraulic rod 802 is fixedly connected to the upper surface of the moving plate 803.

[0039] Through the setting of the first slider 804 and the chute 801, the movement of the moving plate 803 and the upper die 10 can be made more stable.

[0040] During use, turn on the first hydraulic rod 802 to drive the moving plate 803 to move downward, drive the first slider 804 to move inside the chute 801, drive the upper die 10 to move downward, and the pole piece on the lower die 3 can be flattened.

[0041] The second installation mechanism 9 includes a positioning plate 901. The bottom surface of the positioning plate 901 is fixedly connected to the upper surface of the moving plate 803. The outer surface of the positioning plate 901 is fixedly connected to a second hydraulic rod 902. The telescopic end of the second hydraulic rod 902 is fixedly connected to a second movable plate 903. The bottom surface of the second movable plate 903 is fixedly connected to a second slider 904.

[0042] To ensure the synchronous movement of the two second hydraulic rods 902, the same control system should be used for driving.

[0043] The upper surface of the moving plate 803 is fixedly connected to a slide rail 905. The outer surface of the second slider 904 is slidably connected to the inside of the slide rail 905. The outer surface of the second movable plate 903 is fixedly connected to a plug rod 906. A connecting rod 907 is inserted into the inside of the moving plate 803. The bottom surface of the connecting rod 907 is fixedly connected to the upper surface of the upper die 10. The outer surface of the plug rod 906 is inserted into the inside of the connecting rod 907.

[0044] The arrangement of the second slider 904 and the slide rail 905 can make the movement of the second movable plate 903 more stable. The surface of the connecting rod 907 is provided with a jack. When the upper surface of the upper die 10 is in contact with the bottom surface of the moving plate 803 and the connecting rod 907 is inserted into the inside of the moving plate 803, the plug rod 906 can be inserted into the jack.

[0045] During use, by turning on the second hydraulic rod 902, the second movable plate 903 is driven to move, the second slider 904 is driven to move inside the slide rail 905, the plug rod 906 is driven to move, so that the plug rod 906 is disengaged from the inside of the connecting rod 907. Then, the connecting rod 907 is removed from the inside of the moving plate 803, and the disassembly of the damaged upper die 10 can be realized. Subsequently, the connecting rod 907 under the new upper die 10 is inserted into the inside of the moving plate 803, and the second hydraulic rod 902 is turned on again to make the plug rod 906 inserted into the inside of the connecting rod 907, and the replacement of the upper die 10 can be realized.

[0046] Working principle: During use, pull the handle 407, which drives the movable rod 405 to move, drives the first movable plate 403 to move on the surface of the limiting rod 408, drives the magnet 404 to move, and as the first movable plate 403 moves, it compresses the elastic member 406, causing the elastic member 406 to generate elastic force until the adsorption between the magnet 404 and the iron block 402 is released. At this time, by moving the lower die 3 upward, the connecting block 401 is pulled out from the inside of the base 1, and the disassembly of the damaged lower die 3 can be achieved. Subsequently, place the new lower die 3 on the base 1 and insert the connecting block 401 below it into the inside of the base 1. Then, release the handle 407, and under the elastic force of the elastic member 406, the magnet 404 and the iron block 402 are adsorbed to achieve the replacement of the lower die 3. By activating the second hydraulic rod 902, it drives the second movable plate 903 to move, drives the second slider 904 to move inside the slide rail 905, drives the insertion rod 906 to move, causing the insertion rod 906 to disengage from the inside of the connecting rod 907. Then, move the connecting rod 907 out of the inside of the moving plate 803 to achieve the disassembly of the damaged upper die 10. Subsequently, insert the connecting rod 907 below the new upper die 10 into the inside of the moving plate 803 and activate the second hydraulic rod 902 again to make the insertion rod 906 insert into the inside of the connecting rod 907 to achieve the replacement of the upper die 10. These innovative designs are aimed at helping the staff to quickly replace the damaged lower die 3 and upper die 10, thereby significantly improving the overall work efficiency and achieving the goal of efficient operation. During use, activate the first hydraulic rod 802, which drives the moving plate 803 to move downward, drives the first slider 804 to move inside the chute 801, and drives the upper die 10 to move downward to flatten the pole piece on the lower die 3.

[0047] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A flattening device for a lithium-ion battery electrode sheet, comprising a base (1), characterized in that: The upper surface of the base (1) is fixedly connected with a protection plate (2). Above the base (1), there is a lower die (3). Inside the base (1), there are two symmetrically arranged first installation mechanisms (4). Inside the base (1), a partition plate (5) is fixedly connected. Through holes (6) are formed on the outer surface of the protection plate (2). The upper surface of the protection plate (2) is fixedly connected with a top plate (7). Below the top plate (7), there is a displacement mechanism (8). The displacement mechanism (8) includes a moving plate (803). Above the moving plate (803), there are two symmetrically arranged second installation mechanisms (9). Below the moving plate (803), there is an upper die (10).

2. The flattening device for a lithium-ion battery electrode sheet according to claim 1, characterized in that: The first installation mechanism (4) includes a connecting block (401) and a first movable plate (403). The upper surface of the connecting block (401) is fixedly connected with the bottom surface of the lower die (3). The outer surface of the connecting block (401) is inserted into the inside of the base (1). An iron block (402) is fixedly connected inside the connecting block (401).

3. The flattening device for lithium-ion battery electrode sheets according to claim 2, characterized in that: A magnet (404) is fixedly connected inside the first movable plate (403). The iron block (402) and the magnet (404) are adsorbed to each other. An activity rod (405) is fixedly connected to the outer surface of the first movable plate (403). The outer surface of the activity rod (405) is slidably connected with the inside of the base (1). One end of the activity rod (405) far from the first movable plate (403) is fixedly connected with a handle (407).

4. The flatting device for lithium ion battery electrode sheets according to claim 3, wherein: Two symmetrically arranged elastic members (406) are fixedly connected to the outer surface of the first movable plate (403). One end of each of the two elastic members (406) far from the first movable plate (403) is fixedly connected with the inner side wall of the base (1). Two symmetrically arranged limiting rods (408) are fixedly connected inside the base (1). The outer surfaces of the two limiting rods (408) are slidably connected with the inside of the first movable plate (403). The outer surfaces of the two limiting rods (408) are fixedly connected with the inside of the partition plate (5).

5. The flattening device for a lithium-ion battery electrode sheet according to claim 1, characterized in that: The displacement mechanism (8) includes a chute (801). The chute (801) is formed on the outer surface of the protection plate (2). A first slider (804) is slidably connected inside the chute (801). The outer surface of the moving plate (803) is fixedly connected with the outer surface of the first slider (804). The bottom surface of the top plate (7) is fixedly connected with a first hydraulic rod (802). The telescopic end of the first hydraulic rod (802) is fixedly connected with the upper surface of the moving plate (803).

6. The flattening device for a lithium-ion battery electrode sheet according to claim 1, wherein: The second installation mechanism (9) includes a positioning plate (901). The bottom surface of the positioning plate (901) is fixedly connected with the upper surface of the moving plate (803). A second hydraulic rod (902) is fixedly connected to the outer surface of the positioning plate (901). The telescopic end of the second hydraulic rod (902) is fixedly connected with a second movable plate (903). The bottom surface of the second movable plate (903) is fixedly connected with a second slider (904).

7. A flattening device for a lithium-ion battery electrode sheet according to claim 6, characterized in that: The upper surface of the moving plate (803) is fixedly connected with a slide rail (905). The outer surface of the second slider (904) is slidably connected to the inside of the slide rail (905). The outer surface of the second movable plate (903) is fixedly connected with a plug rod (906). A connecting rod (907) is inserted into the inside of the moving plate (803). The bottom surface of the connecting rod (907) is fixedly connected with the upper surface of the upper die (10). The outer surface of the plug rod (906) is inserted into the inside of the connecting rod (907).

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