High-precision pole piece roller press

Abstract

The utility model discloses a high-precision pole piece roller press, which belongs to the technical field of roller presses and comprises a supporting frame, a supporting block fixedly mounted at the top end of the supporting frame, a hydraulic cylinder fixedly mounted at the top end of the supporting block, a lower pressing plate fixedly mounted at the output end of the hydraulic cylinder, and two moving blocks fixedly mounted at the bottom end of the lower pressing plate. Two movable square blocks are slidably installed in the supporting frame, the two movable blocks are fixedly installed at the top ends of the corresponding movable square blocks, an upper roller is rotatably installed between the two movable square blocks, two fixed blocks are fixedly installed in the supporting frame, and a lower roller is rotatably installed between the two fixed blocks. A mounting motor and a connecting motor are fixedly mounted on the moving square block and the fixed block on the same side respectively, and the output end of the mounting motor is fixedly connected with the upper roller. According to the utility model, the hydraulic cylinder is calculated and started through a GA-BP algorithm, so that the upper roller is adjusted, and the tension required during processing is controlled while better feeding and discharging are realized through the movement of the transmission assembly.

Description

Technical Field

[0001] The utility model relates to the technical field of roller presses, in particular to a high-precision pole piece roller press. Background Art

[0002] High-precision pole piece roller presses play a vital role in the manufacture of lithium-ion batteries; pole pieces are the core components of lithium-ion batteries, and their quality directly affects the performance of the battery, including key parameters such as the compaction density and capacity of the battery. Therefore, ensuring the high-quality production of pole pieces is a key link in the battery manufacturing process. In the production process of battery pole pieces, after coating and drying, in order to prevent the peeling between the active material and the current collector foil, the pole pieces need to be rolled. This not only enhances the bonding strength between the active material and the foil, but also helps to improve the energy density of the battery cell and reduce the internal porosity, thereby reducing the resistance of the battery and improving performance. High-precision pole piece roller presses usually adopt a vertically installed square-shaped frame, with two rollers arranged horizontally up and down, and the lower hydraulic cylinder presses upward. The servo motor reducer is used to adjust the roller gap, and the integral base and the dual output shaft reducer speed divider are driven by a universal coupling. The design of these structures is to ensure uniform pressure and precise control of the pole pieces during the rolling process. High-precision pole piece roller presses are indispensable equipment in the manufacture of lithium-ion batteries, and their technological progress is directly related to the quality of battery products.

[0003] With the rapid development of lithium battery industry, the requirements for battery performance are also increasing. As the core component of the battery, the compaction of the pole piece directly affects the energy density and cycle life of the battery. Most of the existing pole piece roller presses cannot perform precise processing and have strict requirements for the control of object tension. Therefore, we propose a high-precision pole piece roller press to solve this problem. Utility Model Content

[0004] The purpose of the utility model is to provide a high-precision pole piece rolling machine to solve the problems raised in the above-mentioned background technology.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A high-precision pole piece rolling machine comprises: a support frame, a support block is fixedly installed on the top of the support frame, a hydraulic cylinder is fixedly installed on the top of the support block, a lower pressure plate is fixedly installed on the output end of the hydraulic cylinder, and two moving blocks are fixedly installed on the bottom end of the lower pressure plate, two moving blocks are slidably installed in the support frame, two of the moving blocks are fixedly installed on the top of corresponding moving blocks, an upper roller is rotatably installed between the two moving blocks, two fixed blocks are fixedly installed in the support frame, a lower roller is rotatably installed between the two fixed blocks, an installation motor and a connecting motor are respectively fixedly installed on the moving block and the fixed block located on the same side, the installation motor output end is fixedly connected to the upper roller, and the connecting motor output end is fixedly connected to the lower roller, a mounting plate is fixedly installed on the support frame, and a transmission assembly is arranged on the mounting plate.

[0007] Preferably, the transmission assembly includes a rotating rod and a fixed motor, the fixed motor is fixedly mounted on a mounting plate, two fixed disks are rotatably mounted on the mounting plate, a rotating rod is fixedly mounted on one side of the fixed disk, a large bevel gear is fixedly mounted on the other side of the fixed disk, the output end of the fixed motor is fixedly connected to one of the large bevel gears, two small bevel gears are fixedly mounted on the rotating rod, and the small bevel gears are meshed with the large bevel gears.

[0008] Preferably, a heating device is fixedly mounted on one side of the support frame, a connecting block is fixedly mounted on the other side of the support frame and one side of the heating device, a mounting block is slidably mounted on the connecting block, a rotating block is rotatably mounted on the mounting block, an insertion rod is fixedly mounted on one side of the rotating block, and the insertion rod is movably inserted in the rotating rod.

[0009] Preferably, two limiting plates are fixedly mounted on one side of the mounting block, the two limiting plates are threadedly connected with the same screw, the connecting block is provided with a plug-in slot matching the limiting plates, and both the limiting plates and the connecting block are provided with a threaded slot matching the screw.

[0010] Preferably, a sliding groove matching the moving block is provided on the support frame, and a mounting groove matching the mounting motor and the connecting motor is provided on one of the moving blocks and the fixed block respectively.

[0011] Preferably, the mounting plate is provided with a mounting circular groove matching the fixed motor, the mounting plate is provided with a rotating groove matching the fixed disk, the rotating rod is provided with a plug-in groove matching the plug rod, and the mounting block is provided with a rotating groove matching the rotating block.

[0012] In the utility model, a high-precision pole piece roller press is described, by placing the material to be processed on a rotating rod located on one side of the heating device, allowing the material to pass through the heating device and between the upper roller and the lower roller, so that the material is heated while moving, which is convenient for processing, and by allowing the fixed motor to drive the large bevel gear and the fixed disk to rotate, thereby driving the small bevel gear and the rotating rod to rotate, so that the two rotating rods are rotated, so as to achieve better material discharge and winding;

[0013] In the utility model, a high-precision pole piece rolling machine is calculated and started by the GA-BP algorithm, and the test set prediction error is minimized, so that the hydraulic cylinder drives the lower pressure plate fixedly installed at its output end to move, thereby driving the two moving blocks to move, and controlling the movement of the two moving blocks to adjust the gap between the upper roller and the lower roller, so as to optimize the network parameter configuration as much as possible and achieve better processing;

[0014] The utility model has a reasonable structural design, and uses a GA-BP algorithm to calculate and start the hydraulic cylinder to adjust the upper roller. Through the movement of the transmission component, the material is better loaded and unloaded, and the tension required for processing is controlled. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a three-dimensional structural schematic diagram of a high-precision pole piece roller press proposed by the utility model;

[0016] Figure 2 This is a schematic cross-sectional view of a high-precision pole piece roller press proposed by the utility model;

[0017] Figure 3 This is a partial structural cross-sectional schematic diagram of a high-precision pole piece roller press proposed by the utility model;

[0018] Figure 4 The utility model provides a schematic cross-sectional view of the local structure of a high-precision pole piece roller press.

[0019] In the figure: 1. support frame; 2. hydraulic cylinder; 3. support block; 4. lower pressure plate; 5. moving block; 6. mounting plate; 7. rotating rod; 8. rotating block; 9. fixed block; 10. upper roller; 11. lower roller; 12. connecting block; 13. mounting block; 14. moving block; 15. fixing motor; 16. mounting motor; 17. connecting motor; 18. inserting rod; 19. fixing plate; 20. rotating rod; 21. large bevel gear; 22. small bevel gear; 23. limiting plate; 24. screw; 25. heating device. DETAILED DESCRIPTION

[0020] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0021] Reference Figure 1-4 A high-precision pole piece rolling machine comprises: a support frame 1, a support block 3 is fixedly installed on the top of the support frame 1, a hydraulic cylinder 2 is fixedly installed on the top of the support block 3, a lower pressure plate 4 is fixedly installed on the output end of the hydraulic cylinder 2, and two moving blocks 5 are fixedly installed on the bottom end of the lower pressure plate 4. Two moving blocks 14 are slidably installed in the support frame 1, and the two moving blocks 5 are fixedly installed on the top of the corresponding moving blocks 14. An upper roller 10 is rotatably installed between the two moving blocks 14. Two fixed blocks 9 are fixedly installed in the support frame 1, and a lower roller 11 is rotatably installed between the two fixed blocks 9. An installation motor 16 and a connecting motor 17 are respectively fixedly installed on the moving block 14 and the fixed block 9 on the same side, the output end of the installation motor 16 is fixedly connected to the upper roller 10, and the output end of the connecting motor 17 is fixedly connected to the lower roller 11. A mounting plate 6 is fixedly installed on the support frame 1, and a transmission component is arranged on the mounting plate 6.

[0022] In this embodiment, the transmission assembly includes a rotating rod 20 and a fixed motor 15. The fixed motor 15 is fixedly mounted on the mounting plate 6. Two fixed disks 19 are rotatably mounted on the mounting plate 6. A rotating rod 7 is fixedly mounted on one side of the fixed disk 19, and a large bevel gear 21 is fixedly mounted on the other side of the fixed disk 19. The output end of the fixed motor 15 is fixedly connected to one of the large bevel gears 21. Two small bevel gears 22 are fixedly mounted on the rotating rod 20. The small bevel gears 22 are meshed with the large bevel gears 21 to better carry out loading and unloading.

[0023] In this embodiment, a heating device 25 is fixedly installed on one side of the support frame 1, and a connecting block 12 is fixedly installed on the other side of the support frame 1 and one side of the heating device 25. A mounting block 13 is slidably installed on the connecting block 12, and a rotating block 8 is rotatably installed on the mounting block 13. An insertion rod 18 is fixedly installed on one side of the rotating block 8, and the insertion rod 18 is movably inserted in the rotating rod 7, which is more convenient for rotation and processing.

[0024] In this embodiment, two limiting plates 23 are fixedly installed on one side of the mounting block 13, and the same screw 24 is threadedly connected to the two limiting plates 23. A plug-in slot matching the limiting plate 23 is provided on the connecting block 12, and a threaded slot matching the screw 24 is provided on the limiting plate 23 and the connecting block 12, which is more convenient for disassembly. A sliding slot matching the moving block 14 is provided on the supporting frame 1, and one of the moving blocks 14 and the fixed block 9 are respectively provided with mounting grooves matching the mounting motor 16 and the connecting motor 17, which are better for installation.

[0025] In this embodiment, a mounting circular groove matching the fixed motor 15 is provided on the mounting plate 6, a rotating groove matching the fixed disk 19 is provided on the mounting plate 6, a plug-in groove matching the plug-in rod 18 is provided on the rotating rod 7, and a rotating groove matching the rotating block 8 is provided on the mounting block 13 for better rotation.

[0026] In this embodiment, when in use, the material to be processed is placed on the rotating rod 7 located on one side of the heating device 25, and the material is passed through the heating device 25 between the upper roller 10 and the lower roller 11, so that the material is heated during movement, which is convenient for processing, and the material is connected to another rotating rod 7, so as to facilitate winding after processing. The fixed motor 15 drives the large bevel gear 21 and the fixed disk 19 to rotate, thereby driving the small bevel gear 22 and the rotating rod 20 to rotate, so that the two rotating rods 7 are rotated to achieve better material discharge and winding. At the same time, the GA-BP algorithm is used to calculate and start the hydraulic cylinder 2, and the test set prediction error is minimized, so that the hydraulic cylinder 2 drives the lower pressure plate 4 fixedly installed at its output end to move, thereby driving the two moving blocks 5 to move, and controlling the two moving blocks 14 to move, so as to adjust the gap between the upper roller 10 and the lower roller 11, so as to optimize the network parameter configuration as much as possible to achieve better processing.

[0027] The above is a detailed introduction to a high-precision pole piece roller press provided by the utility model. This article uses specific embodiments to explain the principle and implementation method of the utility model. The description of the above embodiments is only used to help understand the method and core idea of ​​the utility model. It should be pointed out that for ordinary technicians in this technical field, without departing from the principle of the utility model, the utility model can also be improved and modified, and these improvements and modifications also fall within the scope of protection of the claims of the utility model.

Claims

1. A high-precision pole piece rolling machine, characterized in that: include: A support frame (1), wherein a support block (3) is fixedly mounted on the top of the support frame (1), a hydraulic cylinder (2) is fixedly mounted on the top of the support block (3), a lower pressure plate (4) is fixedly mounted on the output end of the hydraulic cylinder (2), two moving blocks (5) are fixedly mounted on the bottom end of the lower pressure plate (4), two moving blocks (14) are slidably mounted in the support frame (1), two moving blocks (5) are fixedly mounted on the top ends of corresponding moving blocks (14), an upper roller (10) is rotatably mounted between the two moving blocks (14), and the support Two fixed blocks (9) are fixedly installed in the frame (1), a lower roller (11) is rotatably installed between the two fixed blocks (9), a mounting motor (16) and a connecting motor (17) are respectively fixedly installed on the moving block (14) and the fixed block (9) located on the same side, the output end of the mounting motor (16) is fixedly connected to the upper roller (10), and the output end of the connecting motor (17) is fixedly connected to the lower roller (11), and a mounting plate (6) is fixedly installed on the support frame (1), and a transmission component is arranged on the mounting plate (6).

2. A high-precision pole piece rolling machine according to claim 1, characterized in that: The transmission assembly comprises a rotating rod (20) and a fixed motor (15); the fixed motor (15) is fixedly mounted on a mounting plate (6); two fixed disks (19) are rotatably mounted on the mounting plate (6); a rotating rod (7) is fixedly mounted on one side of the fixed disk (19); a large bevel gear (21) is fixedly mounted on the other side of the fixed disk (19); an output end of the fixed motor (15) is fixedly connected to one of the large bevel gears (21); two small bevel gears (22) are fixedly mounted on the rotating rod (20); the small bevel gears (22) are meshed with the large bevel gear (21).

3. A high-precision pole piece rolling machine according to claim 1, characterized in that: A heating device (25) is fixedly mounted on one side of the support frame (1), a connecting block (12) is fixedly mounted on the other side of the support frame (1) and one side of the heating device (25), a mounting block (13) is slidably mounted on the connecting block (12), a rotating block (8) is rotatably mounted on the mounting block (13), an insertion rod (18) is fixedly mounted on one side of the rotating block (8), and the insertion rod (18) is movably inserted into the rotating rod (7).

4. A high-precision pole piece rolling machine according to claim 3, characterized in that: Two limiting plates (23) are fixedly mounted on one side of the mounting block (13), the two limiting plates (23) are threadedly connected with a same screw (24), the connecting block (12) is provided with a plug-in slot matching the limiting plates (23), and both the limiting plates (23) and the connecting block (12) are provided with a threaded slot matching the screw (24).

5. The high-precision pole piece rolling machine according to claim 1, characterized in that: The support frame (1) is provided with a sliding groove matching the moving block (14), and one of the moving blocks (14) and the fixed block (9) is provided with a mounting groove matching the mounting motor (16) and the connecting motor (17), respectively.

6. A high-precision pole piece rolling machine according to claim 3, characterized in that: The mounting plate (6) is provided with a mounting circular groove matching the fixed motor (15), the mounting plate (6) is provided with a rotation groove matching the fixed disk (19), the rotating rod (7) is provided with a plug-in groove matching the plug rod (18), and the mounting block (13) is provided with a rotation groove matching the rotating block (8).

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