Coating machine for lithium battery production
By introducing a uniform spraying structure and a simple moving design into the coating machine, the problems of uneven spraying and equipment fixation were solved, improving the performance of lithium batteries and the flexibility of the production line, and achieving more efficient battery production.
Patent Information
- Application Number
- CN202520090433.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-15
- Publication Date
- 2026-02-27
- Estimated Expiration
- 2035-01-15
AI Technical Summary
Existing coating machines suffer from uneven coating, resulting in inconsistent distribution of active materials inside lithium batteries, which affects battery performance and lifespan. Furthermore, the fixed nature of the equipment limits the flexibility and efficiency of the production line.
It adopts a uniform spraying structure and easy-to-move design. The uniformity of spraying is adjusted by a motor-driven bevel gear and lead screw, and it is equipped with casters and cylinders to make the equipment easy to move.
It improves the uniformity of the lithium battery coating and the consistency of the distribution of internal active materials, extends the battery's cycle life and charge/discharge efficiency, enhances the flexibility and adaptability of the production line, and reduces production costs.
Smart Images
Figure CN223945955U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to the technical field of coating machine especially relates to a coating machine for lithium battery production. BACKGROUND
[0002] Coating machine is one of the key equipment in lithium battery production, mainly used for uniform coating of active material on electrode substrate, its working principle is usually through scraping, roll coating or spraying method, slurry is accurately coated on aluminum foil or copper foil to form effective electrode, the design of coating machine aims at guaranteeing the thickness, uniformity and adhesion of coating, thereby improving the performance and cycle life of battery, at the same time, modern coating machine is also equipped with automatic control system, can real-time monitoring each parameter in coating process, improves production efficiency and quality stability.
[0003] In prior art, the spraying technology of coating machine still faces the problem of uneven spraying, this unevenness can lead to inconsistent distribution of active material inside battery, thereby affecting the overall performance and life of battery, under the production requirement of high-performance battery, accurate control of coating process becomes particularly important, to ensure that the thickness, uniformity and adhesion performance of coating reach the best state, can improve the energy density and charge-discharge efficiency of battery. SUMMARY
[0004] The utility model discloses a coating machine for lithium battery production to solve the shortcomings in prior art.
[0005] In order to realize the above-mentioned purpose, the utility model discloses the following technical scheme: a coating machine for lithium battery production, including coating machine operation machine and conveying belt, the conveying belt is driven to rotate through the external motor, the top of coating machine operation machine is equipped with first support frame, the first support frame is fixed on both sides of coating machine operation machine, two sliding rods are fixed on the inner wall of first support frame, two sliding rods surface slidingly connected with sliding seat, the bottom of sliding seat is fixed with coating assembly, the bottom of coating assembly is equipped with a plurality of coating heads in array, the one side of sliding seat is rotatably connected with first drive rod, the one side of first drive rod is equipped with drive disc, the one side of drive disc is fixed with second drive rod, the one side of first support frame is fixed with support piece, the inner wall of support piece is rotatably connected with second drive rod, and one end of second drive rod is fixed with first bevel gear, the surface of first bevel gear is engaged with second bevel gear, the second bevel gear is driven to rotate through first motor, and the one side of support piece is fixed with first motor.
[0006] Preferably, one side of the driving disc is fixed with a second support frame, a screw rod is rotationally connected to the inner wall of the second support frame, a sliding piece is threadedly connected to the surface of the screw rod, the first driving rod is rotationally connected to one side of the sliding piece, a third bevel gear is fixed to one end of the screw rod, a fourth bevel gear is engaged with the surface of the third bevel gear, the fourth bevel gear is driven to rotate by a second motor, and the second motor is fixed to one side of the driving disc. In the prior art, the uniformity of spraying cannot be adjusted, which causes uneven coating, directly affecting the performance and reliability of lithium batteries. Such unevenness can cause uneven distribution of active materials inside the battery, resulting in capacity attenuation, reduced charging and discharging efficiency, and shortened cycle life of the battery, limiting the application potential of the battery in high-performance environments, making the quality control of battery production more complex, affecting market competitiveness, and aiming at such problems, the utility model adopts the spraying uniformity adjustable structure, when uniformity adjustment is needed, the second motor is started, the fourth bevel gear is driven to rotate under the driving of the second motor, the third bevel gear is further driven to rotate, the screw rod is driven to rotate, the sliding piece threadedly connected to the surface of the screw rod moves under the rotation of the screw rod, the effect of adjusting the spraying uniformity is realized, the overall performance and reliability of the lithium battery are significantly improved, higher energy density and charging and discharging efficiency are realized, the capacity attenuation of the battery is effectively controlled by ensuring the uniform distribution of active materials, the cycle life is significantly prolonged, which provides greater potential for the application of the battery in high-performance environments. In addition, the improved quality control means will also reduce the defect rate in the production process, improve market competitiveness, and promote the development of lithium battery technology towards higher efficiency and longer life.
[0007] Preferably, the coating machine operating platform is fixed with universal wheels at the bottom, and a support groove is formed in the bottom of the coating machine operating platform, a support table is slidably connected to the inner wall of the support groove, a gas cylinder is fixed to the inner wall of the support groove, and the support table is fixed to the driving end of the gas cylinder. In the prior art, the coating machine for lithium battery production is usually designed as a fixed device, which lacks convenient mobility, which limits its flexible deployment and adaptability on the production line. Due to the difficulty in transferring, such equipment is difficult to respond to changes in production demand, affecting production efficiency and optimal use of resources. Therefore, the development of a simple and easy-to-move coating machine will help improve the flexibility and efficiency of the production line and ensure a more efficient and economical production process. In view of such problems, the utility model adopts a simple and easy-to-move structure. When the coating machine needs to be moved, the machine is pushed, and under the action of the universal wheels at the bottom of the machine, the machine can be easily moved. When moved to the designated position, the gas cylinder is started, and under the driving of the gas cylinder, the support table falls to a position in full contact with the ground, so that the machine is used more stably in place. The flexibility and adaptability of the production line are significantly improved, the production process can quickly respond to changes in market demand, thereby optimizing resource allocation and improving production efficiency. In addition, such mobility will reduce idle time of equipment, reduce production cost, and enhance the flexibility and adaptability of enterprises in competition, ensuring a better balance between efficiency and economy in the production process.
[0008] Preferably, a grab groove is formed on both sides of the coating machine operating platform. The grab groove makes it easy to grab and carry the machine when moving. Through the optimization structure of the grab groove, the operator can easily grab the coating machine with his hand or tool, ensuring stable and safe movement and improving the convenience and efficiency of operation. This design not only enhances the mobility of the coating machine, but also provides more flexibility for equipment maintenance and adjustment.
[0009] Preferably, the second support frame is provided with a limiting plate at one end. This ensures that the internal components will not fall off when adjusting the uniformity of spraying, ensuring stable use of the equipment.
[0010] Preferably, the support table is in the shape of a circular table. This enhances the overall stability and effectively disperses the pressure applied to the surface. The circular shape of the table makes the center of gravity more concentrated, reducing the risk of overturning. At the same time, it also provides a larger contact area, increasing the friction with the ground and thus improving the safety and reliability of the support.
[0011] Preferably, anti-skid lines are formed in the bottom of the support table. This enhances the friction between the support table and the ground. This anti-skid design effectively prevents sliding or tilting during use, improving the safety and stability of the equipment.
[0012] Advantages:
[0013] 1、In the prior art, the coating machine still faces the problem of uneven spraying, which can lead to inconsistent distribution of active materials inside the battery, affecting the overall performance and lifespan of the battery. In the production of high-performance batteries, precise control of the coating process becomes particularly important to ensure that the thickness, uniformity, and adhesion of the coating are at their best, thereby improving the energy density and charge-discharge efficiency of the battery. To address this issue, the present utility model adopts a uniform spraying structure to significantly improve the uniformity of the coating of lithium batteries, thereby ensuring the consistency of the distribution of internal active materials. This improvement directly enhances the overall performance and service life of the battery, enabling it to achieve higher energy density and charge-discharge efficiency in high-performance applications, longer cycle life, and more stable working performance, meeting the market's increasing demand for high-quality batteries.
[0014] 2、In the prior art, the lack of adjustable spraying uniformity leads to uneven coating, directly affecting the performance and reliability of lithium batteries. This unevenness can cause uneven distribution of active materials inside the battery, leading to capacity degradation, reduced charge-discharge efficiency, and shortened cycle life, limiting the application potential of batteries in high-performance environments and complicating quality control in battery production, affecting market competitiveness. To address this issue, the present utility model adopts an adjustable spraying uniformity structure to significantly improve the overall performance and reliability of lithium batteries, thereby achieving higher energy density and charge-discharge efficiency. By ensuring uniform distribution of active materials, the capacity degradation of the battery will be effectively controlled, and the cycle life will be significantly extended, providing greater potential for battery applications in high-performance environments. In addition, improved quality control methods will reduce defect rates during production, enhance market competitiveness, and promote the development of lithium battery technology towards higher efficiency and longer lifespan.
[0015] 3、In the prior art, the coating machine for lithium battery production is usually designed as a fixed device, lacking convenient mobility, which limits its flexibility and adaptability in the production line. Due to the difficulty in transferring, this device cannot easily adapt to changes in production demand, affecting production efficiency and optimal utilization of resources. Therefore, developing a simple and mobile coating machine will help improve the flexibility and efficiency of the production line, ensuring a more efficient and economical production process. To address this issue, the present utility model adopts a simple and mobile structure to significantly improve the flexibility and adaptability of the production line, enabling the production process to quickly respond to changes in market demand, thereby optimizing resource allocation and improving production efficiency. In addition, this mobility will reduce idle time of equipment, reduce production costs, and enhance the flexibility and adaptability of enterprises in competition, ensuring a better balance between efficiency and economy in the production process. BRIEF DESCRIPTION OF DRAWINGS
[0016] Figure 1 It is a three-dimensional structure schematic view of the utility model;
[0017] Figure 2 It is a three-dimensional structure schematic view of the utility model even spraying structure;
[0018] Figure 3 It is a sectional view of the utility model simple mobile structure;
[0019] Figure 4 It is Figure 2 The enlarged view of A in the middle.
[0020] Legend:
[0021] 1, coating machine operation machine stand;101, conveying belt;102, first support frame;103, sliding rod;104, sliding seat;105, first drive rod;106, drive disc;107, second drive rod;108, first bevel gear;109, second bevel gear;110, first motor;111, support piece;112, coating assembly;113, coating head;2, second support frame;201, screw;202, sliding piece;203, third bevel gear;204, fourth bevel gear;205, second motor;3, universal wheel;301, support groove;302, support table;303, air cylinder;4, grab groove;5, limit plate. Specific embodiments
[0022] In order to make the technical means, creation features, purposes and effects realized by the utility model easy to understand, the utility model is further described below in combination with specific embodiments and drawings, but the following embodiments are only preferred embodiments of the utility model, not all. Based on the embodiments in the embodiments, other embodiments obtained by those skilled in the art without creative labor belong to the protection scope of the utility model.
[0023] The specific embodiments of the utility model are described below in combination with the drawings. Specific embodiments
[0025] Refer to Figures 1-4The utility model relates to a kind of coating machine for lithium battery production, including coating machine operating machine table 1 and conveyer belt 101, conveyer belt 101 is rotated by peripheral motor drive, coating machine operating machine table 1 top is equipped with first support frame 102, first support frame 102 is fixed to both sides of coating machine operating machine table 1, two sliding rods 103 are fixed in the inner wall of first support frame 102, two sliding rods 103 surface slidingly connected with sliding seat 104, coating assembly 112 is fixed in the bottom of sliding seat 104, multiple coating heads 113 are arranged in the bottom of coating assembly 112, first drive rod 105 is rotatably connected on the side of sliding seat 104, drive disc 106 is equipped on the side of first drive rod 105, second drive rod 107 is fixed on the side of drive disc 106, support piece 111 is fixed on the side of first support frame 102, second drive rod 107 is rotatably connected in the inner wall of support piece 111, first bevel gear 108 is fixed on the one end of second drive rod 107, second bevel gear 109 is engaged on the surface of first bevel gear 108, second bevel gear 109 is driven to rotate by first motor 110, first motor 110 is fixed on the side of support piece 111.In prior art, the spraying technology of coating machine still faces the problem of uneven spraying, and the unevenness can lead to inconsistent distribution of active materials inside the battery, thereby affecting the overall performance and life of the battery, and under the production requirements of high-performance batteries, accurate control of the coating process becomes particularly important to ensure that the thickness, uniformity and adhesion performance of the coating reach the best state, so as to improve the energy density and charge-discharge efficiency of the battery, in view of such problems, the utility model adopts uniform spraying structure, when spraying operation is carried out, first motor 110 is started, second bevel gear 109 is driven to rotate under the drive of first motor 110, and then first bevel gear 108 is driven to rotate, so that second drive rod 107 drives drive disc 106 to rotate, under the high-speed rotation of drive disc 106 and the rotation of first drive rod 105, sliding seat 104 drives coating assembly 112 and coating head 113 to uniformly reciprocate, to realize the effect of uniform spraying.
[0026] The second support frame 2 is fixed on one side of the driving disc 106, a screw rod 201 is rotatably connected to the inner wall of the second support frame 2, a sliding piece 202 is threadedly connected to the surface of the screw rod 201, the first driving rod 105 is rotatably connected to one side of the sliding piece 202, a third bevel gear 203 is fixed at one end of the screw rod 201, a fourth bevel gear 204 is engaged with the surface of the third bevel gear 203, the fourth bevel gear 204 is driven to rotate by a second motor 205, and the second motor 205 is fixed on one side of the driving disc 106. In the prior art, the unevenness of the coating caused by the inability to adjust the spraying uniformity directly affects the performance and reliability of the lithium battery. Such unevenness can cause uneven distribution of active materials inside the battery, resulting in capacity attenuation, reduced charging and discharging efficiency, and shortened cycle life of the battery, limiting the application potential of the battery in high-performance environments, making the quality control of battery production more complex, affecting market competitiveness, and aiming at the problems, the spraying uniformity adjustable structure is adopted, when the uniformity needs to be adjusted, the second motor 205 is started, the fourth bevel gear 204 is driven to rotate under the driving of the second motor 205, and the third bevel gear 203 is driven to rotate, and the screw rod 201 is driven to rotate, and the sliding piece 202 threadedly connected to the surface of the screw rod 201 moves under the rotation of the screw rod 201, so that the spraying uniformity is adjusted.
[0027] The universal wheel 3 is fixed at the bottom of the coating machine operation machine 1, the support groove 301 is formed in the bottom of the coating machine operation machine 1, the support table 302 is slidably connected to the inner wall of the support groove 301, the air cylinder 303 is fixed to the inner wall of the support groove 301, and the support table 302 is fixed to the driving end of the air cylinder 303. In the prior art, the coating machine for lithium battery production is usually designed as a fixed device, which lacks convenient mobility, which limits its flexible deployment and adaptability on the production line. Due to the difficulty in transferring, such equipment is difficult to meet the changes in production demand, which affects the production efficiency and the optimized use of resources. Therefore, developing a simple and movable coating machine will help to improve the flexibility and efficiency of the production line, ensure that the production process is more efficient and economical, and aiming at the problems, the simple and movable structure is adopted, when the coating machine needs to be moved, the machine is pushed, and the machine can be simply moved under the action of the universal wheel 3 at the bottom of the machine, when the machine is moved to the specified position, the air cylinder 303 is started, the support table 302 falls to the position in full contact with the ground under the driving of the air cylinder 303, so that the machine is more stable in use.
[0028] The both sides of the coating machine operation platform 1 are provided with grab grooves 4, which facilitate grabbing and carrying when the machine is moved, and through the optimized structure of the grab grooves, the operator can easily grab the coating machine by hand or tool, ensuring stability and safety during movement, improving the convenience and efficiency of operation, which not only enhances the mobility of the coating machine, but also provides more flexibility for the maintenance and adjustment of the equipment, and the second support frame 2 is provided with a limiting plate 5 at one end, so that when the spraying uniformity is adjusted, the internal components are prevented from falling off, ensuring stable use of the equipment, and the support table 302 is in the shape of a circular table, enhancing the overall stability and effectively dispersing the pressure applied to the surface, the circular table shape makes the center of gravity more concentrated, reducing the risk of overturning, and also providing a larger contact area, increasing the friction with the ground, thereby improving the safety and reliability of the support, and the bottom of the support table 302 is provided with anti-skid lines, enhancing the friction between the support table 302 and the ground, and the anti-skid design effectively prevents sliding or tilting during use, improving the safety and stability of the equipment.
[0029] The working principle of the utility model is: when carrying out spraying operation, the first motor 110 is started, the second bevel gear 109 is driven to rotate under the driving of the first motor 110, and then the first bevel gear 108 is driven to rotate, the second driving rod 107 drives the driving disc 106 to rotate, under the high-speed rotation of the driving disc 106 and the rotation of the first driving rod 105, the sliding seat 104 drives the coating assembly 112 and the coating head 113 to uniformly reciprocate, realizing the effect of uniform spraying, when needing to adjust the uniformity, the second motor 205 is started, the fourth bevel gear 204 is driven to rotate under the driving of the second motor 205, and then the third bevel gear 203 is driven to rotate, the lead screw 201 is driven to rotate, under the rotation of the lead screw 201, the sliding piece 202 threaded on the surface thereof moves, realizing the effect of adjusting the spraying uniformity, when needing to move the coating machine, the machine is pushed, under the action of the universal wheel 3 at the bottom of the machine, the machine can be simply moved, when being moved to the specified position, the cylinder 303 is started, under the driving of the cylinder 303, the support table 302 falls to the position fully contacting with the ground, so that the machine is more stably used in place.
[0030] In the utility model, unless another definite provision and limitation, first feature is "on" or "under" second feature can include that first and second features are in direct contact, also can include that first and second features are not in direct contact but are in contact through other features between them.
[0031] The basic principle, main features and advantages of the utility model are shown and described above. Those skilled in the art should understand that the utility model is not limited by the above-mentioned embodiments, the above-mentioned embodiments and the description in the specification are only preferred examples of the utility model and are not used to limit the utility model, various changes and improvements of the utility model can be made without departing from the spirit and scope of the utility model, and these changes and improvements all fall within the scope of the utility model claimed. The protection scope of the utility model is defined by the appended claims and equivalents thereof.
Claims
1. A coating machine for lithium battery production, comprising a coating machine operation machine table (1) and a conveying belt (101), the conveying belt (101) is driven to rotate by an external motor, characterized in that: The coating machine operation platform (1) top is provided with first support frame (102), first support frame (102) is fixed to both sides of coating machine operation platform (1), two sliding rods (103) are fixed on the inner wall of first support frame (102), two sliding rods (103) are surface slidingly connected with sliding seat (104), the bottom of sliding seat (104) is fixed with coating assembly (112), a plurality of coating heads (113) are arranged at the bottom of coating assembly (112), first drive rod (105) is rotatably connected with one side of sliding seat (104), drive disc (106) is arranged on one side of first drive rod (105), second drive rod (107) is fixed on one side of drive disc (106), support (111) is fixed on one side of first support frame (102), second drive rod (107) penetrates through and is rotatably connected to the inner wall of support (111), first bevel gear (108) is fixed on one end of second drive rod (107), second bevel gear (109) is engaged with the surface of first bevel gear (108), second bevel gear (109) is driven to rotate by first motor (110), and first motor (110) is fixed on one side of support (111).
2. The coating machine for lithium battery production according to claim 1, characterized in that: The drive disc (106) is fixed on one side of the second support frame (2), the inner wall of the second support frame (2) is rotatably connected with the lead screw (201), the surface of the lead screw (201) is threadedly connected with the sliding member (202), and the first drive rod (105) is rotatably connected on one side of the sliding member (202). One end of the lead screw (201) is fixed with the third bevel gear (203), the third bevel gear (203) is engaged with the fourth bevel gear (204) on the surface, and the fourth bevel gear (204) is driven to rotate by the second motor (205), and the second motor (205) is fixed on one side of the drive disc (106).
3. The coating machine for lithium battery production according to claim 1, characterized in that: The bottom of the coating machine operation platform (1) is fixed with universal wheel (3), the bottom of the coating machine operation platform (1) is provided with support groove (301), the inner wall of support groove (301) is slidably connected with support table (302), the inner wall of support groove (301) is fixed with air cylinder (303), and support table (302) is fixed on the driving end of air cylinder (303).
4. The coating machine for lithium battery production according to claim 3, characterized in that: The both sides of the coating machine operation platform (1) are provided with grab groove (4).
5. The coating machine for lithium battery production according to claim 2, characterized in that: The second support frame (2) is provided with limit plate (5) at one end.
6. The coating machine for lithium battery production according to claim 3, characterized in that: The support table (302) is a circular table.
7. The coating machine for lithium battery production according to claim 3, characterized in that: The bottom of the support table (302) is provided with anti-skid lines.