Hot pressing device for lithium battery production

Abstract

The utility model relates to the technical field of lithium battery hot pressing, and discloses a lithium battery production hot pressing device which comprises a hot pressing table, a buffer mechanism is arranged on the upper surface of the hot pressing table, the buffer mechanism comprises a U-shaped frame, a bearing plate, a buffer spring and a telescopic rod, and the bottom of the U-shaped frame and the top of the hot pressing table are fixedly installed. According to the hot-pressing device for lithium battery production, through the use of the U-shaped frame, the hydraulic cylinder, the connecting plate and the hot-pressing block, the hot-pressing effect can be achieved more conveniently, the position of the hot-pressing block is driven to descend, and through the use of a bearing plate, a buffer spring, a telescopic rod, a first rectangular groove and a frame, the hot-pressing effect can be achieved when the positions of the connecting plate and the hot-pressing block descend. And the reduced strength is buffered, so that the problem of how to perform buffering hot pressing on the lithium battery during hot pressing of the lithium battery is solved, the effect of avoiding direct damage to the lithium battery during hot pressing can be achieved, and the safety during hot pressing is improved.

Description

Technical Field

[0001] This utility model relates to the field of lithium battery hot pressing technology, specifically to a lithium battery production hot pressing device. Background Technology

[0002] Lithium-ion batteries are high-efficiency, rechargeable energy storage devices that achieve charging and discharging through the insertion and extraction of lithium ions between positive and negative electrodes. They have advantages such as high energy density, long cycle life, and low self-discharge rate, and are widely used in electric vehicles, consumer electronics, and energy storage systems. Hot pressing is a key process in the manufacturing of lithium-ion battery electrodes. By heating and pressurizing, the electrode materials are tightly bonded together, improving compaction density and conductivity.

[0003] According to a hot pressing device for lithium battery production with application number CN202221594554.5, this solution solves the problem that the feeding and unloading processes consume a lot of labor and affect the improvement of production efficiency.

[0004] However, the following problems still exist in actual use:

[0005] (1) During hot pressing, the pressure plate and the lithium battery are directly pressed by the force of the electric cylinder. There is no corresponding buffer structure. Therefore, the instantaneous high pressure can easily damage the lithium battery during hot pressing, reducing the safety of actual use.

[0006] (2) When collecting the hot-pressed lithium battery, the lithium battery is pushed and directly collected in the storage box. It is not possible to protect it from dust when placing it, and it is not possible to slide the hot-pressed lithium battery into the box during collection.

[0007] Therefore, this utility model introduces a hot pressing device for lithium battery production. Utility Model Content

[0008] To address the shortcomings of existing technologies, this utility model provides a hot-pressing device for lithium battery production, which has the advantages of buffering during hot pressing and efficient collection and dust prevention of hot-pressed lithium batteries, thus solving the problems mentioned in the background technology.

[0009] This utility model provides the following technical solution: a hot pressing device for lithium battery production, including a hot pressing table. A buffer mechanism is provided on the upper surface of the hot pressing table. The buffer mechanism includes a U-shaped frame, a receiving plate, a buffer spring, and a telescopic rod. The bottom of the U-shaped frame is fixedly installed to the top of the hot pressing table. The outer surface of the receiving plate is slidably connected to the inner wall of the U-shaped frame. One end of the buffer spring is fixedly installed to the bottom of the receiving plate. One end of the telescopic rod is fixedly installed to the bottom of the receiving plate. The other end of the buffer spring is fixedly connected to the inside of the U-shaped frame. The other end of the telescopic rod is fixedly connected to the inside of the U-shaped frame.

[0010] Preferably, a collection mechanism is provided on the right side of the upper surface of the hot press platform. The collection mechanism includes an electric push rod, a frame, a connecting frame, a collection box, a connecting inclined plate, and a cover plate. One end of the electric push rod is fixedly installed inside the hot press platform. The left side of the bottom end of the frame is fixedly connected to the other end of the electric push rod. The left side of the connecting frame is fixedly installed to the right side of the frame. The outer surface of the collection box is fixedly installed inside the hot press platform. The left side of the connecting inclined plate is fixedly installed to the left side of the inside of the collection box. The left side of the cover plate is fixedly installed to the right side of the connecting frame.

[0011] Preferably, a hydraulic cylinder is provided on the top of the U-shaped frame, and a connecting plate is fixedly installed on one end of the output shaft of the hydraulic cylinder.

[0012] Preferably, a hot pressing block is fixedly installed at the bottom of the connecting plate, and a rectangular groove is provided on both sides of the connecting plate.

[0013] Preferably, support frames are fixedly installed on both sides of the bottom of the hot press table.

[0014] Preferably, the lower surface of the cover plate is attached to the upper surface of the collection box, and the lower surface of the cover plate is attached to the upper surface of the hot press table.

[0015] Preferably, a placement block is fixedly installed inside the frame, the lower surface of the frame is in contact with the upper surface of the hot press table, and rectangular grooves are provided on both sides of the frame.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] 1. This lithium battery production hot pressing device, through the use of a U-shaped frame, hydraulic cylinder, connecting plate, and hot pressing block, facilitates hot pressing more conveniently. The device lowers the hot pressing block to achieve the desired hot pressing effect. The use of a receiving plate, buffer spring, telescopic rod, rectangular groove, and frame buffers the descent of the connecting plate and hot pressing block, preventing direct contact between the hot pressing block and the lithium battery. This improves hot pressing safety in practice and solves the problem of buffering the hot pressing process, preventing direct damage to the lithium battery and enhancing safety. This also facilitates more convenient and efficient operation in practice.

[0018] 2. This lithium battery production hot-pressing device, through the use of an electric push rod, frame, and placement block, can move the lithium battery and place it for processing. The use of a connecting frame, collection box, and cover plate allows the cover plate to move synchronously with the frame, facilitating the collection of the hot-pressed lithium batteries. The use of a connecting inclined plate prevents the lithium batteries from falling directly and causing damage during collection, thus solving the problem of protecting the batteries during collection. This effectively prevents dust from entering and avoids damage from batteries falling into the collection box, improving the collection efficiency in practice. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0020] Figure 2 This utility model Figure 1 A schematic diagram of the structure viewed from below;

[0021] Figure 3 This utility model Figure 1 A schematic diagram of the buffer mechanism structure;

[0022] Figure 4 This utility model Figure 1 A schematic diagram of the collection mechanism.

[0023] In the diagram: 1. Hot press table; 2. Support frame; 3. U-shaped frame; 4. Hydraulic cylinder; 5. Connecting plate; 6. Hot press block; 7. Electric push rod; 8. Receiving plate; 9. Buffer spring; 10. Telescopic rod; 11. Rectangular groove one; 12. Frame; 13. Placement block; 14. Rectangular groove two; 15. Connecting frame; 16. Collection box; 17. Connecting inclined plate; 18. Cover plate; 19. Buffer mechanism; 20. Collection mechanism. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0025] Please see Figure 3A hot pressing device for lithium battery production includes a hot pressing table 1. A buffer mechanism 19 is provided on the upper surface of the hot pressing table 1. The buffer mechanism 19 includes a U-shaped frame 3, a receiving plate 8, a buffer spring 9, and a telescopic rod 10. The bottom of the U-shaped frame 3 is fixedly installed to the top of the hot pressing table 1. The outer surface of the receiving plate 8 is slidably connected to the inner wall of the U-shaped frame 3. One end of the buffer spring 9 is fixedly installed to the bottom of the receiving plate 8. One end of the telescopic rod 10 is fixedly installed to the bottom of the receiving plate 8. The other end of the buffer spring 9 is fixedly connected to the inside of the U-shaped frame 3. The other end of the telescopic rod 10 is fixedly connected to the inside of the U-shaped frame 3. A hydraulic cylinder 4 is provided on the top of the U-shaped frame 3. A connecting plate 5 is fixedly installed on one end of the output shaft of the hydraulic cylinder 4. A hot pressing block 6 is fixedly installed on the bottom of the connecting plate 5. Rectangular grooves 11 are provided on both sides of the connecting plate 5.

[0026] When the hot press block 6 is pressed down, the buffer spring 9 absorbs the impact force through elastic deformation, preventing the lithium battery from being deformed or damaged due to excessive instantaneous pressure. The telescopic rod 10 works in conjunction with the buffer spring 9 to provide stable vertical guidance, prevent the buffer spring 9 from shifting laterally, and ensure that the buffering action is precise and controllable. The rectangular groove 11 overlaps with the receiving plate 8 to provide relevant buffering during the pressing down, avoiding direct contact that could damage the lithium battery.

[0027] Please see Figure 4 A collection mechanism 20 is provided on the right side of the upper surface of the hot press table 1. The collection mechanism 20 includes an electric push rod 7, a frame 12, a connecting frame 15, a collection box 16, a connecting inclined plate 17, and a cover plate 18. One end of the electric push rod 7 is fixedly installed inside the hot press table 1. The left side of the bottom end of the frame 12 is fixedly connected to the other end of the electric push rod 7. The left side of the connecting frame 15 is fixedly installed to the right side of the frame 12. The outer surface of the collection box 16 is fixedly installed inside the hot press table 1. The left side of the connecting inclined plate 17 is fixedly installed to the left side of the inside of the collection box 16. The left side of the cover plate 18 is fixedly installed to the right side of the connecting frame 15. The lower surface of the cover plate 18 is in contact with the upper surface of the collection box 16 and the upper surface of the hot press table 1. A placement block 13 is fixedly installed inside the frame 12. The lower surface of the frame 12 is in contact with the upper surface of the hot press table 1. Rectangular grooves 14 are provided on both sides of the frame 12.

[0028] Among them, the electric push rod 7 serves as a power source, driving the frame 12 to move horizontally on the surface of the hot press table 1, realizing the automatic transfer of the lithium battery after hot pressing. The placement block 13 is fixed inside the frame 12, providing a positioning slot for the lithium battery to prevent the battery from shifting or tipping over after hot pressing. The connecting frame 15 connects the frame 12 and the cover plate 18 to form an integral structure, enhancing the stability during the transfer process. The cover plate 18 covers the opening of the collection box 16 to prevent dust or foreign objects from entering, while also preventing operators from accidentally touching high-temperature components. The connecting inclined plate 17 guides the lithium battery to slide smoothly into the collection box 16, avoiding jamming or stacking problems.

[0029] Please see Figure 1 and Figure 2 Both sides of the bottom of the hot press table 1 are fixedly installed with support frames 2.

[0030] The use of support frame 2 provides a more robust support during actual use, which is conducive to stable and efficient operation.

[0031] Working principle: During use, when hot-pressing the lithium battery, the lithium battery can first be placed in the battery slot inside the placement block 13. Then, through the electrical connection of the external power source, the electric push rod 7 is activated, which moves the placed lithium battery to the position of the connecting plate 5, aligning it with the position of the hot-pressing block 6 at the bottom of the connecting plate 5. After that, the hydraulic cylinder 4 can be activated. The power source of the hydraulic cylinder 4 mainly relies on the interaction of the closed high-pressure gas nitrogen and hydraulic oil inside, and it can achieve self-drive without external power input, thus driving the connecting plate 5 to descend. When the connecting plate 5 descends, the rectangular openings on both sides of the bottom of the connecting plate 5... The interior of the rectangular groove 11 can overlap with the outer surface of the receiving plate 8, which then drives the receiving plate 8 to descend. When the receiving plate 8 descends, the bottom of the receiving plate 8 is compressed between the fixed buffer spring 9 and the telescopic rod 10 inside the U-shaped frame 3, which can buffer during hot pressing and prevent direct contact between the hot pressing block 6 and the lithium battery. The hot pressing block 6 integrates heating elements such as electric heating tubes and oil heating circulation systems. As the connecting plate 5 continues to descend, the outer surface of the receiving plate 8 can contact the internal structure of the rectangular groove 14 inside the frame 12, so that the hot pressing block 6 can contact the lithium battery and perform hot pressing operation on the lithium battery.

[0032] When collecting the hot-pressed lithium batteries, the connecting plate 5 and the hot-pressing block 6 can be moved upwards first. Then, the frame 12 can be pushed by the electric push rod 7. When the frame 12 moves, the connecting frame 15 can move the cover plate 18 away from the upper surface of the collection box 16. After the frame 12 moves above the collection box 16, the lithium battery placed inside the placement block 13 can enter the collection box 16. The connecting inclined plate 17 inside the collection box 16 can buffer the lithium battery as it is placed inside. After placement, the electric push rod 7 is activated to move the frame 12 to the left, so that the cover plate 18 covers the upper surface of the collection box 16, thus protecting the hot-pressed lithium battery.

[0033] It should be noted that the electrical components and equipment mentioned above all use external power sources. The circuits, electronic components, and modules involved in this utility model are all existing technologies, which can be fully implemented by those skilled in the art and need not be elaborated upon. Although embodiments of this utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of this utility model. The scope of this utility model is defined by the appended claims and their equivalents.

[0034] In addition, throughout this document, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, without necessarily requiring or implying 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.

Claims

1. A hot pressing device for lithium battery production, characterized in that: The device includes a hot press table (1), and a buffer mechanism (19) is provided on the upper surface of the hot press table (1). The buffer mechanism (19) includes a U-shaped frame (3), a receiving plate (8), a buffer spring (9), and a telescopic rod (10). The bottom of the U-shaped frame (3) is fixedly installed with the top of the hot press table (1). The outer surface of the receiving plate (8) is slidably connected with the inner wall of the U-shaped frame (3). One end of the buffer spring (9) is fixedly installed with the bottom of the receiving plate (8). One end of the telescopic rod (10) is fixedly installed with the bottom of the receiving plate (8). The other end of the buffer spring (9) is fixedly connected with the inside of the U-shaped frame (3). The other end of the telescopic rod (10) is fixedly connected with the inside of the U-shaped frame (3).

2. The lithium battery production hot pressing apparatus according to claim 1, characterized in that: A collection mechanism (20) is provided on the right side of the upper surface of the hot press table (1). The collection mechanism (20) includes an electric push rod (7), a frame (12), a connecting frame (15), a collection box (16), a connecting inclined plate (17), and a cover plate (18). One end of the electric push rod (7) is fixedly installed inside the hot press table (1). The left side of the bottom end of the frame (12) is fixedly connected to the other end of the electric push rod (7). The left side of the connecting frame (15) is fixedly installed to the right side of the frame (12). The outer surface of the collection box (16) is fixedly installed inside the hot press table (1). The left side of the connecting inclined plate (17) is fixedly installed to the left side of the inside of the collection box (16). The left side of the cover plate (18) is fixedly installed to the right side of the connecting frame (15).

3. The lithium battery production hot pressing apparatus according to claim 1, characterized in that: A hydraulic cylinder (4) is provided on the top of the U-shaped frame (3), and a connecting plate (5) is fixedly installed on one end of the output shaft of the hydraulic cylinder (4).

4. The lithium battery production hot pressing apparatus according to claim 3, characterized in that: A hot press block (6) is fixedly installed at the bottom of the connecting plate (5), and rectangular grooves (11) are provided on both sides of the connecting plate (5).

5. The lithium battery production hot pressing apparatus according to claim 1, characterized in that: Support frames (2) are fixedly installed on both sides of the bottom of the hot press table (1).

6. The lithium battery production hot pressing apparatus according to claim 2, characterized in that: The lower surface of the cover plate (18) is attached to the upper surface of the collection box (16), and the lower surface of the cover plate (18) is attached to the upper surface of the hot press table (1).

7. The lithium battery production hot pressing apparatus according to claim 2, characterized in that: The frame (12) has a fixed placement block (13) inside. The lower surface of the frame (12) is in contact with the upper surface of the hot press table (1). Rectangular grooves (14) are provided on both sides of the frame (12).

Images