Lithium battery film coating device

Abstract

The utility model relates to the field of lithium batteries, in particular to a lithium battery film wrapping device which comprises a film wrapping base, a film winding roller assembly, a battery core fixing jig and a scraper assembly, the film winding roller assembly is arranged on the film wrapping base, and a blue film film is wound on the film winding roller assembly; wherein the battery cell fixing jig is fixed on the film coating base and is used for positioning a battery cell; the scraping plate assembly is arranged on the film coating base and comprises a scraping plate and scraping plate sliding assemblies, the scraping plate sliding assemblies are arranged on the two sides of the film coating base in a sliding mode, the two ends of the scraping plate are connected with the scraping plate sliding assemblies respectively, and the scraping plate moves in the direction of the film coating base through the scraping plate sliding assemblies. The device adopts semi-automatic design, and compared with full-automatic equipment, the device is more flexible to operate and suitable for enterprises with different scales and capacities. Meanwhile, compared with pure manual film coating, the semi-automatic film coating machine has the advantages that the production efficiency is greatly improved, errors caused by human factors are reduced, and the consistency of film coating quality is guaranteed.

Description

Technical Field

[0001] The utility model relates to the field of lithium batteries, in particular to a lithium battery coating device. Background Art

[0002] The current state of technology development in battery cell coating is particularly critical, especially when facing the problems of traditional pure manual coating methods. Traditional pure manual coating methods have been unable to meet the needs of modern industrial production due to problems such as low efficiency, high cost and unstable quality. With the continuous expansion of the lithium battery market and the deepening of its application fields, the market demand for improving the speed and quality of battery cell coating is becoming increasingly urgent, and at the same time, the demand for reducing production costs is also becoming stronger.

[0003] Currently, there are fully automated battery cell coating equipment on the market, but its complex structure and high cost make many small and medium-sized enterprises reluctant to use it. Although fully automated battery cell coating equipment can greatly improve production efficiency and reduce errors caused by human factors, its complex structure leads to high manufacturing and maintenance costs. In addition, this type of equipment often requires high skills of operators and requires a lot of manpower and material resources for training and management.

[0004] Therefore, some companies still use pure manual methods to coat battery cells. However, the pure manual coating method has obvious shortcomings. Due to the errors and instability of human operation, manual coating often fails to achieve the ideal coating effect. This may lead to problems such as bubbles, wrinkles, and unevenness in the battery cells after coating, which seriously affects the performance and safety of the battery. In addition, the production efficiency of manual coating is relatively low and cannot meet the needs of large-scale production. Summary of the invention

[0005] To solve the above problems, the utility model provides a lithium battery coating device. Compared with fully automatic or purely manual coating equipment, the semi-automatic design is more suitable for small and medium-sized production enterprises. It can reduce equipment investment and maintenance costs while ensuring a certain production efficiency.

[0006] To achieve the above purpose, the technical solution adopted by the utility model is: a lithium battery film coating device, including a film coating base, a film rolling roller assembly, a battery cell fixing fixture, and a scraper assembly.

[0007] The film rolling roller assembly is arranged on the film coating base, and the film rolling roller assembly is wound with a blue film roll;

[0008] The battery cell fixing jig is fixed on the film base and is used to position the battery cell;

[0009] The scraper assembly is arranged on the film coating base, wherein the scraper assembly includes a scraper and a scraper sliding assembly, wherein the scraper sliding assembly is slidably arranged on both sides of the film coating base, and the two ends of the scraper are respectively connected to the scraper sliding assembly and move along the film coating base through the scraper sliding assembly.

[0010] As a further optimization scheme, the battery cell fixing fixture includes a horizontal limit plate and a vertical limit plate, and first waist holes extending in the vertical direction are arranged on both sides of the surface of the membrane base, wherein the two ends of the horizontal limit plate are fixed to the first waist holes on both sides by screws; and a plurality of first positioning holes are arranged on the surface of the membrane base, and corresponding second positioning holes are also arranged at both ends of the vertical limit plate, wherein the vertical limit plate is connected to the membrane base by screws through the second positioning holes and the first positioning holes; and the vertical limit plate and the horizontal limit plate are placed in a perpendicular position to each other.

[0011] As a further optimization solution, the longitudinal section of the transverse limit plate is a step-shaped structure, including a high step and a low step portion, and the low step portion is fixed to the first waist holes on both sides by screws.

[0012] As a further optimization scheme, the scraper sliding assembly includes a scraper mounting plate, a guide rail, and a slider, wherein the guide rails are arranged on both sides of the film base, wherein the scraper mounting plate is slidably assembled with the guide rails through the slider, and the two ends of the scraper are respectively connected to the two scraper mounting plates.

[0013] As a further optimization solution, a second waist hole is provided on the scraper mounting plate, and both ends of the scraper are fitted with the second waist hole through bolts, and the scraper is placed obliquely downward.

[0014] As a further optimization scheme, the film winding roller assembly includes a roller fixing plate, a roller, a fixing ring, and a blue film roll. The roller fixing plate is arranged on both sides of the film wrapping base, and the two ends of the roller are respectively mounted on the roller fixing plate, wherein the fixing ring is fixed on the roller, and the two fixing rings clamp the blue film roll.

[0015] As a further optimization solution, first fixing strips are respectively arranged at the front and rear ends of the bottom of the membrane base, and second fixing strips are respectively arranged at the left and right sides of the bottom of the membrane base.

[0016] The beneficial effects of the utility model are:

[0017] Semi-automatic design: This device adopts semi-automatic design, which is more flexible to operate than fully automatic equipment and is suitable for enterprises of different sizes and production capacities. At the same time, compared with pure manual film coating, semi-automatic design greatly improves production efficiency, reduces errors caused by human factors, and ensures the consistency of film coating quality. In addition, semi-automatic design also reduces equipment investment and maintenance costs, allowing small and medium-sized enterprises to introduce advanced film coating technology at a lower cost and improve overall competitiveness.

[0018] Modular design, easy maintenance and customization: The device adopts modular design, and each component is relatively independent and easy to disassemble and replace. This design not only facilitates the daily maintenance and upkeep of the equipment, but also allows enterprises to customize and adjust according to actual production needs. For example, enterprises can replace scrapers and blue film rolls of different specifications according to the size and shape of the battery cells to meet different production needs.

[0019] High-precision film coating improves battery cell quality: By precisely controlling the movement of the scraper and the scraper sliding assembly, the device can achieve high-precision lamination between the blue film and the battery cell. This high-precision film coating not only improves the packaging quality of the battery cell, reduces defects such as bubbles and wrinkles, but also enhances the stability and safety of the battery cell. This is of great significance for improving the overall performance of lithium batteries and extending their service life.

[0020] Easy to integrate to form an efficient production line: The device has good compatibility and can be easily integrated with other automated equipment to form an efficient production line. By cooperating with conveyor belts, loading and unloading robots and other equipment, it can realize automatic loading, coating and unloading of battery cells, greatly improving the automation level and production efficiency of the production line. This integrated design not only reduces manual intervention and operation difficulty, but also improves the stability and reliability of the production line. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a structural schematic diagram of a lithium battery coating device.

[0022] Figure 2 It is a schematic structural diagram of a lithium battery coating device from another perspective.

[0023] Figure 3 It is a schematic diagram of the explosion structure of a lithium battery coating device.

[0024] Description of the accompanying drawings: film base 11, vertical limit plate 12, horizontal limit plate 13, first waist hole 14, battery cell 2, scraper 21, scraper mounting plate 22, second waist hole 221, slider 23, guide rail 24, roller 31, fixing ring 32, roller fixing plate 33, first fixing bar 41, second fixing bar 42. DETAILED DESCRIPTION

[0025] See also Figure 1-3As shown, the utility model relates to a lithium battery coating device, including a coating base 11, a film rolling roller assembly, a battery cell fixing fixture, and a scraper 21 assembly, wherein the film rolling roller assembly is arranged on the coating base 11, and the film rolling roller assembly is wound with a blue film roll; wherein the battery cell fixing fixture is fixed on the coating base 11, and is used to position the battery cell 2; the scraper 21 assembly is arranged on the coating base 11, wherein the scraper 21 assembly includes a scraper 21 and a scraper 21 sliding assembly, wherein the scraper 21 sliding assembly is slidably arranged on both sides of the coating base 11, and the two ends of the scraper 21 are respectively connected to the scraper 21 sliding assembly, and move along the coating base 11 direction through the scraper 21 sliding assembly.

[0026] The setting of the film roll assembly enables the blue film roll to be supplied to the coating process smoothly and continuously, thereby improving the coating efficiency. At the same time, the design of the film roll assembly also takes into account the convenience of replacing the blue film roll, so that the operator can quickly complete the replacement operation. The application of the battery cell fixing fixture ensures the stability of the battery cell 2 during the coating process. By accurately positioning the battery cell 2, the fixing fixture effectively prevents the battery cell 2 from moving or tilting during the coating process, thereby ensuring the quality and uniformity of the coating. The design of the scraper 21 assembly adopts a scraper 21 sliding assembly to realize the movement of the scraper 21. This design not only enables the scraper 21 to move smoothly along the direction of the coating base 11, but also can adjust the position and angle of the scraper 21 according to actual needs to adapt to battery cells 2 of different sizes and shapes. The function of the scraper 21 is to fit the blue film tightly to the surface of the battery cell 2, remove bubbles and wrinkles, and thus improve the quality and aesthetics of the coating.

[0027] In this specific embodiment, the battery cell fixing fixture includes a horizontal limit plate 13 and a vertical limit plate 12, and first waist holes 14 extending in the vertical direction are arranged on both sides of the surface of the film base 11, wherein the two ends of the horizontal limit plate 13 are fixed to the first waist holes 14 on both sides by screws; and a plurality of first positioning holes are arranged on the surface of the film base 11, and corresponding second positioning holes are also arranged at both ends of the vertical limit plate 12, wherein the vertical limit plate 12 is connected to the film base 11 by screws through the second positioning holes and the first positioning holes; and the vertical limit plate 12 and the horizontal limit plate 13 are placed in a perpendicular position to each other.

[0028] The battery cell fixing fixture adopts a combination design of a horizontal limit plate 13 and a vertical limit plate 12, which are placed perpendicular to each other to form a stable frame structure. This design can ensure that the battery cell 2 is accurately fixed at a predetermined position during the coating process to prevent it from moving or tilting during the coating process.

[0029] The horizontal limit plate 13 is fixed to the first waist hole 14 on both sides of the coating base 11 by screws, which means that the position of the horizontal limit plate 13 can be adjusted as needed. Similarly, the vertical limit plate 12 is connected to the coating base 11 by screws and positioning holes, and also has the ability to be flexibly adjusted. This design enables the fixing fixture to adapt to battery cells 2 of different sizes and shapes, improving the versatility and adaptability of the device. The horizontal limit plate 13 and the vertical limit plate 12 are firmly fixed to the coating base 11 by screws, forming a stable and reliable fixing structure. This design ensures the stability of the fixing fixture during the coating process and avoids problems such as displacement of the battery cells 2 or uneven coating due to loose fixation.

[0030] In this specific embodiment, the longitudinal section of the transverse limit plate 13 is a step-shaped structure, including a high step and a low step portion, and the low step portion is fixed to the first waist hole 14 on both sides by screws. The step structure design of the transverse limit plate 13 provides an operator with a clear cutting reference line. The presence of the high step and the low step enables the operator to more accurately locate the cutting position when cutting the blue film, thereby ensuring the accuracy and consistency of the blue film cutting. This design helps to reduce operating errors and improve the efficiency and quality of film encapsulation.

[0031] In this specific embodiment, the scraper 21 assembly includes a scraper 21, a scraper mounting plate 22, a guide rail 24, and a slider 23, wherein the guide rail 24 is arranged on both sides of the coating base 11, wherein the scraper mounting plate 22 is slidably assembled with the guide rail 24 through the slider 23, and the two ends of the scraper 21 are respectively connected to the two scraper mounting plates 22.

[0032] The scraper 21 can effectively fit the blue film tightly to the surface of the battery cell 2 through its special shape and structure. During the coating process, the scraper 21 slides along the surface of the battery cell 2 and compacts the blue film with its edge to ensure that there are no bubbles or wrinkles between the blue film and the battery cell 2, thereby achieving a high-quality coating effect. The sliding assembly structure of the scraper 21 assembly ensures the stability of the scraper 21 during operation. The precise matching of the guide rail 24 and the slider 23 enables the scraper 21 to slide smoothly along the surface of the battery cell 2 without shaking or deflection. This stability ensures the accuracy and consistency of the coating operation and improves the quality and efficiency of the coating.

[0033] In this specific embodiment, a second waist hole 221 is provided on the scraper mounting plate 22, and the two ends of the scraper 21 are fitted with the second waist hole 221 by bolts, and the scraper 21 is placed obliquely downward. By providing the second waist hole 221 on the scraper mounting plate 22, the two ends of the scraper 21 can be fitted with these waist holes by bolts, thereby realizing the flexible adjustment of the angle of the scraper 21. This design enables the operator to accurately adjust the angle of the scraper 21 according to the shape of the battery cell 2 and the coating requirements, ensuring that the blue film can be more closely and evenly attached to the surface of the battery cell 2. At the same time, the distance and angle between the scraper 21 and the battery cell 2 can be accurately controlled to adapt to the coating requirements of battery cells 2 of different specifications. This flexibility ensures that the coating device can be widely used in the production of various types of lithium batteries. The design of placing the scraper 21 obliquely downward enables the scraper 21 to more effectively compact the blue film downward during the coating process to eliminate possible bubbles and wrinkles. This downward pressure distribution not only improves the quality of the coating, but also makes the blue film fit more closely on the battery cell 2, reducing the defects that may occur during the coating process. Through the assembly method of the bolt and the second waist hole 221, the installation and removal of the scraper 21 becomes more convenient. The operator can quickly replace or adjust the scraper 21, which improves work efficiency. At the same time, this design also facilitates the maintenance and care of the scraper 21, extending its service life.

[0034] In this specific embodiment, the film rolling roller assembly includes a roller fixing plate 33, a roller 31, a fixing ring 32, and a blue film roll. The roller fixing plate 33 is arranged on both sides of the film packaging base 11, and the two ends of the roller 31 are respectively mounted on the roller fixing plate 33, wherein the fixing ring 32 is fixedly arranged on the roller 31, and the two fixing rings 32 clamp the blue film roll.

[0035] The film roll assembly is composed of a roller fixing plate 33, a roller 31, a fixing ring 32 and a blue film roll, and the parts are closely matched and the structure is stable. The roller fixing plate 33 is firmly arranged on both sides of the film encapsulation base 11, providing a solid support for the roller 31. The two ends of the roller 31 are respectively mounted on the roller fixing plate 33, ensuring the smooth rotation of the roller 31. The setting of the fixing ring 32 effectively clamps the blue film roll on the roller 31, preventing the blue film roll from moving or slipping during the film encapsulation process, thereby ensuring the continuity and stability of the film encapsulation.

[0036] In this specific embodiment, the first fixing bars 41 are respectively provided at the front and rear ends of the bottom of the film-wrapping base 11, and the second fixing bars 42 are respectively provided at the left and right sides of the bottom of the film-wrapping base 11. By respectively providing the first fixing bars 41 and the second fixing bars 42 at the front and rear ends and the left and right sides of the bottom of the film-wrapping base 11, additional support and fixation are provided for the entire device. These fixing bars can effectively disperse the pressure on the base, and improve the bearing capacity and stability of the base. This not only ensures that the device is not prone to shaking or tilting during the film-wrapping process, but also ensures the accuracy and consistency of the operation.

[0037] 1. Put the blue film roll into the roller 31, fix the blue film roll in a suitable position with the fixing ring 32 and tighten the screws on the fixing ring 32.

[0038] 2. According to the selected battery cell 2 model, adjust the vertical limit plate 12 and the horizontal limit plate 13 to align the battery cell 2 with the blue film.

[0039] 3. According to the selected battery cell 2 model, the height of the scraper 21 is adjusted to achieve the effect of compacting the blue film and preventing the probability of bubbling during the blue film pasting process, which is a key adjustment to improve the film coating yield.

[0040] After all parts are adjusted,

[0041] 1) Place the battery cell 2 with its polarity facing the vertical limit plate 12;

[0042] 2) Manually straighten the blue film to completely cover the two large surfaces of the battery cell;

[0043] 3) Use both hands to slide the scraper 21 from the direction of the battery cell 2 to the direction of the roller 31 to compact the blue film onto the surface of the battery cell 2, and then slide the scraper 21 back to the side of the battery cell 2;

[0044] 4) Turn the battery cell 2 180° and repeat step 3) on the other large surface of the battery cell 2;

[0045] 5) Paste the blue film onto the horizontal limiting plate 13 and then cut it, and do the final manual compaction to complete the entire battery film operation process.

[0046] The above implementation modes are merely descriptions of the preferred implementation modes of the present invention, and are not intended to limit the scope of the present invention. Without departing from the design spirit of the present invention, various modifications and improvements made to the technical solutions of the present invention by ordinary engineering and technical personnel in the field shall fall within the protection scope determined by the claims of the present invention.

Claims

1. A lithium battery coating device, Features: It includes a film coating base, a film winding roller assembly, a battery cell fixing fixture, and a scraper assembly, wherein the film winding roller assembly is arranged on the film coating base, and the film winding roller assembly is wound with a blue film roll; wherein the battery cell fixing fixture is fixed on the film coating base and is used to position the battery cell; the scraper assembly is arranged on the film coating base, wherein the scraper assembly includes a scraper and a scraper sliding assembly, the scraper sliding assembly is slidably arranged on both sides of the film coating base, and the two ends of the scraper are respectively connected to the scraper sliding assembly, and move along the film coating base direction through the scraper sliding assembly.

2. A lithium battery coating device according to claim 1, Features: The battery cell fixing fixture includes a horizontal limit plate and a vertical limit plate. First waist holes extending in the vertical direction are arranged on both sides of the surface of the membrane base, wherein the two ends of the horizontal limit plate are fixed to the first waist holes on both sides by screws; and a plurality of first positioning holes are arranged on the surface of the membrane base, and corresponding second positioning holes are also arranged at both ends of the vertical limit plate, wherein the vertical limit plate is connected to the membrane base by screws through the second positioning holes and the first positioning holes; and the vertical limit plate and the horizontal limit plate are placed in a perpendicular position to each other.

3. A lithium battery coating device according to claim 2, Features: The longitudinal section of the transverse limiting plate is a step-shaped structure, which includes a high step and a low step portion, and the low step portion is fixed to the first waist holes on both sides by screws.

4. A lithium battery coating device according to claim 2, Features: The scraper sliding assembly comprises a scraper mounting plate, a guide rail and a slider, wherein the guide rail is arranged on both sides of the film encapsulation base, wherein the scraper mounting plate is slidably assembled with the guide rail through the slider, and the two ends of the scraper are respectively connected to the two scraper mounting plates.

5. A lithium battery coating device according to claim 4, Features: A second waist hole is arranged on the scraper installation plate, and two ends of the scraper are fitted with the second waist hole through bolts, and the scraper is placed obliquely downward.

6. A lithium battery coating device according to claim 1, Features: The film roll assembly includes a roller fixing plate, a roller, a fixing ring, and a blue film roll. The roller fixing plate is arranged on both sides of the film wrapping base, and the two ends of the roller are respectively mounted on the roller fixing plate. The fixing ring is fixed on the roller, and the two fixing rings clamp the blue film roll.

7. A lithium battery coating device according to claim 1, Features: The front and rear ends of the bottom of the membrane base are respectively provided with first fixing strips, and the left and right sides of the bottom of the membrane base are respectively provided with second fixing strips.

Images