Coating machine for lithium battery production

Abstract

The utility model relates to a coating machine, in particular to a coating machine for lithium battery production, which comprises a U-shaped frame, a hot air device, an air cylinder and the like. A hot air device is mounted at one end of the U-shaped frame and used for quickly drying a coating after coating, and a cylinder is arranged at the other end of the U-shaped frame. After the coating wheel finishes coating, the air cylinder is started again, the piston rod of the air cylinder extends upwards to reset the coating wheel to the initial position, at the moment, the pressing plate is separated from the first clamping plate, and then the second clamping plate slides towards the hot air device through the electric sliding rail, so that a material to be coated slides to the position under the hot air device; the hot air device is started, the coated material is blown through hot air, the drying process of the coating is accelerated, finally, the to-be-coated material is loosened through the first clamping plates on the two sides, the coating process is completed, air drying work can be rapidly conducted after coating is completed through the design with the air drying function, and the coating is effectively prevented from being damaged.

Description

TECHNICAL FIELD

[0001] The utility model relates to a coating machine especially a coating machine for lithium battery production. BACKGROUND

[0002] The coating machine for lithium battery production is one of the key equipment in the battery manufacturing process, mainly used for uniformly coating the positive and negative electrode materials on the metal foil. This process is crucial for the performance of lithium-ion batteries, as it directly affects the capacity, cycle life and safety of the battery.

[0003] The existing coating machine for lithium battery production mostly only has a single coating function, lacks an effective air drying device, which means that the coating often cannot completely dry within a sufficient time, resulting in a wet or overly soft coating surface. The coating that is not fully dried is prone to mechanical damage during transportation, such as the coating being erased or worn, which can severely affect the performance and consistency of the battery. In addition, the coating that is not completely dried can also stick to each other during the winding process, making subsequent processing difficult and even damaging the coating. Therefore, there is an urgent need for a coating machine for lithium battery production with air drying function. SUMMARY

[0004] The utility model discloses in order to overcome the present coating machine for lithium battery production mostly single function, easy to cause the coating to be damaged's shortcoming, the utility model provides a coating machine for lithium battery production with air drying function.

[0005] The technical scheme of the utility model: in order to solve above-mentioned technical problem, the utility model provides a coating machine for lithium battery production, including U-shaped frame, hot blast device, pneumatic cylinder, first fixed plate, second fixed plate, smearing wheel, n-shaped block and drive assembly, U-shaped frame one end is installed hot blast device, is used for the quick drying coating after coating, U-shaped frame another end is provided with pneumatic cylinder, pneumatic cylinder is connected with first fixed plate through piston rod, first fixed plate bottom installs second fixed plate, second fixed plate is slidably installed n-shaped block, n-shaped block bottom rotatable type installs three smearing wheels, first fixed plate is provided with drive assembly, is used for driving smearing wheel and carries out coating.

[0006] Preferably, the drive assembly includes a motor, a belt and a threaded rod, one end of the first fixed plate is installed with the motor, the first fixed plate bottom is rotatably installed with the threaded rod, the output shaft of the motor and the threaded rod are commonly sleeved with the belt, and the n-shaped block is threadedly connected with the threaded rod.

[0007] Preferably, it further includes a first clamping plate, a second clamping plate and an electric sliding rail, the two longitudinal inner walls of the U-shaped frame are symmetrically provided with the electric sliding rails, the second clamping plates are symmetrically installed on the sliding blocks of the electric sliding rails, and the first clamping plates are installed on the second clamping plates.

[0008] Preferably, the device further comprises a pressing plate, a tension spring and a second guide rod, the second guide rod is symmetrically arranged at the bottom of the first fixed plate, the pressing plate is slidably arranged on the second guide rod, and the tension spring is arranged between the bottom of the pressing plate and the second guide rod.

[0009] Preferably, the device further comprises a mounting plate, a compression spring and a first guide rod, the first guide rod is symmetrically arranged in the U-shaped frame, the mounting plate is slidably arranged on the first guide rod, and the first fixed plate is fixedly connected with the mounting plate.

[0010] Preferably, the device further comprises a supporting plate, and the supporting plate is arranged on the U-shaped frame and located directly below the coating wheel.

[0011] The device has the advantages that:

[0012] 1. When the coating wheel finishes coating, the cylinder is started again, the piston rod of the cylinder extends upward, the coating wheel is reset to the initial position, at this time, the pressing plate is separated from the first clamping plate, then the second clamping plate is slid to the direction of the hot air device through the electric slide rail, so that the material to be coated is slid to directly below the hot air device, the hot air device is started, the coated material is blown by hot air, the drying process of the coating is accelerated, finally, the material to be coated is loosened by the first clamping plates on both sides, and the coating process is completed, and the design with the air drying function can quickly perform air drying work after coating, and damage to the coating is effectively prevented.

[0013] 2. The cylinder is started, the piston rod of the cylinder extends downward, the first fixed plate is driven to descend, and then the second fixed plate drives the pressing plate to descend until the pressing plate contacts the first clamping plate, the material to be coated is further clamped, and position deviation of the material to be coated caused by excessive friction during coating is prevented. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 It is a three-dimensional structure schematic view of the device.

[0015] Figure 2 It is a three-dimensional structure sectional view of the U-shaped frame.

[0016] Figure 3 It is a three-dimensional structure sectional view of the U-shaped frame and the hot air device.

[0017] Figure 4 It is a three-dimensional structure schematic view of the electric slide rail, the second fixed plate and the pressing plate.

[0018] Figure 5 It is a three-dimensional structure sectional view of the electric slide rail and the second fixed plate.

[0019] The marks in the drawings are: 1-U-shaped frame, 2-hot air device, 3-cylinder, 4-motor, 401-belt, 402-threaded rod, 5-mounting plate, 501-compression spring, 502-first guide rod, 6-supporting plate, 7-first clamping plate, 701-second clamping plate, 702-electric sliding rail, 8-first fixed plate, 9-second fixed plate, 901-pressing plate, 902-tension spring, 903-second guide rod, 904-applying wheel, 905-n-shaped block. DETAILED DESCRIPTION

[0020] The utility model will be further explained in connection with the drawings and examples.

[0021] Example 1: a coating machine for lithium battery production, as shown in Figure 1 , Figure 3 , Figure 4 and Figure 5 , including U-shaped frame 1, hot air device 2, cylinder 3, first fixed plate 8, second fixed plate 9, applying wheel 904, n-shaped block 905 and drive assembly, the left end of U-shaped frame 1 is provided with hot air device 2, which is used for quick drying coating after coating to ensure the flatness and quality of the coating, the right end of U-shaped frame 1 is provided with cylinder 3, which is used to provide power, cylinder 3 is connected with first fixed plate 8 through piston rod, the bottom of first fixed plate 8 is provided with second fixed plate 9, second fixed plate 9 is slidably installed with n-shaped block 905, n-shaped block 905 is rotatably installed with three applying wheels 904 at the bottom, which is used to directly contact the surface of the material to be coated, and the coating is evenly applied on the material to be coated by rotating, the first fixed plate 8 and the second fixed plate 9 n-shaped block are driven to move up and down by the telescopic movement of the piston rod of cylinder 3, so as to adapt to different thicknesses of the coated parts, so as to realize the coating operation on the surface of lithium battery of different heights.

[0022] As shown in Figure 3 and Figure 4 , the drive assembly includes motor 4, belt 401 and threaded rod 402, the right end of first fixed plate 8 is provided with motor 4, the bottom of first fixed plate 8 is rotatably installed with threaded rod 402, the output shaft of motor 4 and threaded rod 402 are commonly sleeved with belt 401, as a common transmission mode, belt 401 can transmit torque and realize speed adjustment, and the flexibility of belt 401 can reduce vibration and noise, n-shaped block 905 is threadedly connected with threaded rod 402, motor 4 rotates through belt 401 threaded rod 402, n-shaped block 905 moves horizontally along threaded rod 402, and then drives applying wheel 904 to move horizontally, and applying wheel 904 uniformly coats the lithium battery below.

[0023] As shown in Figure 2 and Figure 3As shown, it also includes a first clamp plate 7, a second clamp plate 701 and an electric sliding rail 702, the U-shaped frame 1 is symmetrically provided with an electric sliding rail 702 on the two longitudinal inner walls, and the slider of the electric sliding rail 702 is symmetrically provided with a second clamp plate 701. After the coating wheel 904 completes the coating, the second clamp plate 701 on the electric sliding rail 702 is driven to slide in the direction of the hot air device 2, so that the material to be coated slides directly below the hot air device 2, facilitating the air drying process. The second clamp plate 701 is provided with a first clamp plate 7, which directly contacts the material to be coated and is used to clamp and fix the material to be coated, ensuring that the material to be coated remains stable during the coating process, avoiding the material to be coated from shifting due to the pressure of the coating wheel 904 or the vibration of the machine during operation, thereby ensuring the quality and uniformity of the coating.

[0024] As shown in Figure 4 and Figure 5 It also includes a pressing plate 901, a tension spring 902 and a second guide rod 903, the first fixed plate 8 is symmetrically provided with a second guide rod 903 at the bottom, the second guide rod 903 is slidably provided with a pressing plate 901, the pressing plate 901 is slidably connected with the first clamp plate 7, the pressing plate 901 further clamps the material to be coated by applying pressure, the second guide rod 903 provides a guide function for the pressing plate 901, ensuring smooth movement of the pressing plate 901 in the vertical direction, while limiting the horizontal movement of the pressing plate 901, ensuring the stability of the structure, the bottom of the pressing plate 901 and the second guide rod 903 are provided with a tension spring 902, which provides appropriate downward pressure for the pressing plate 901, helping to fix the material to be coated. When the thickness of the material to be coated changes, the tension spring 902 can automatically adjust the pressure of the pressing plate 901 to adapt to different material thicknesses, ensuring stability during the coating process and uniformity of the coating. In addition, the tension spring 902 can also absorb part of the vibration and impact during the coating process, reducing the impact on the coating material and the coating wheel 904, and improving the coating quality.

[0025] As shown in Figure 2 and Figure 3As shown, it also includes the mounting plate 5, compression spring 501 and the first guide rod 502, the U-shaped frame 1 is symmetrically provided with four first guide rods 502, the first guide rod 502 is slidably mounted with the mounting plate 5, the first guide rod 502 provides a guide for the mounting plate 5, ensuring smooth movement of the mounting plate 5 in the vertical direction, while limiting the lateral movement of the mounting plate 5, ensuring the stability of the structure, the first fixed plate 8 is fixedly connected with the mounting plate 5, and the compression spring 501 is arranged between the bottom of the mounting plate 5 and the inner wall of the U-shaped frame 1, when the air cylinder 3 is started, the piston rod of the air cylinder 3 extends downward, pushes the first fixed plate 8 and the mounting plate 5 connected therewith to slide downward along the first guide rod 502, at this time, the compression spring 501 is compressed, at the same time, the first fixed plate 8 drives the second fixed plate 9 and the n-shaped block 905 to descend until the smearing wheel 904 at the bottom of the n-shaped block 905 contacts the material to be coated, facilitating the next step of operation.

[0026] As shown in Figure 2 and Figure 5 As shown, it also includes the support plate 6, the U-shaped frame 1 is provided with the support plate 6, the support plate 6 is located directly below the smearing wheel 904, the support plate 6 provides a flat support surface, ensuring that the material to be coated has a stable support point when passing through the smearing wheel 904, preventing the material to be coated from sagging or deforming, thereby affecting the coating effect.

[0027] First, place the material to be coated on the support plate 6 and clamp the two ends of the material to be coated by the first clamping plates 7 on both sides, then start the air cylinder 3, the piston rod of the air cylinder 3 extends downward, pushes the first fixed plate 8 and the mounting plate 5 connected therewith to slide downward along the first guide rod 502, at this time, the compression spring 501 is compressed; at the same time, the first fixed plate 8 drives the second fixed plate 9 and the n-shaped block 905 to descend until the smearing wheel 904 at the bottom of the n-shaped block 905 contacts the material to be coated, at the same time, the second fixed plate 9 drives the pressing plate 901 to descend until the pressing plate 901 contacts the first clamping plate 7, further clamping the material to be coated, preventing the material to be coated from shifting position due to excessive friction during smearing, then start the motor 4, the output shaft of the motor 4 drives the threaded rod 402 to rotate through the belt 401, the rotation of the threaded rod 402 drives the n-shaped block 905 to move laterally along the second fixed plate 9, thereby driving the smearing wheel 904 to perform coating work, when the smearing wheel 904 completes the coating, start the air cylinder 3 again, the piston rod of the air cylinder 3 extends upward, resets the smearing wheel 904 to the initial position, at this time, the pressing plate 901 is separated from the first clamping plate 7, then the second clamping plate 701 on the electric sliding rail 702 is driven to slide towards the hot air device 2, so that the material to be coated slides to the position directly below the hot air device 2, start the hot air device 2, blow the coated material with hot air to accelerate the drying process of the coating, finally, the material to be coated is released by the first clamping plates 7 on both sides, and the coating process is completed.

[0028] The above-described embodiments only express the preferred embodiments of the present application, which are described in more detail and in more detail, but cannot be understood as limiting the scope of the present application. It should be noted that for ordinary skilled in the art, without departing from the concept of the present application, a number of modifications, improvements and substitutions can be made, which are within the scope of the present application. Therefore, the protection scope of the present application patent should be subject to the appended claims.

Claims

1. A coating machine for lithium battery production, comprising a U-shaped frame (1), an air cylinder (3), a first fixed plate (8), a second fixed plate (9), a coating wheel (904) and an n-shaped block (905), the U-shaped frame (1) is provided with the air cylinder (3) at one end, the air cylinder (3) is connected with the first fixed plate (8) through a piston rod, the first fixed plate (8) is installed with the second fixed plate (9) at the bottom, the second fixed plate (9) is installed with the n-shaped block (905) in a sliding manner, and the n-shaped block (905) is installed with three coating wheels (904) in a rotating manner at the bottom, characterized in that, The hot air device (2) and the driving assembly are further included, the hot air device (2) is installed at the other end of the U-shaped frame (1) and is used for quickly drying the coating after coating, and the driving assembly is arranged on the first fixed plate (8) and is used for driving the coating wheel (904) to coat.

2. The coating machine for lithium battery production according to claim 1, characterized in that, The driving assembly includes the motor (4), the belt (401) and the threaded rod (402), the motor (4) is installed at one end of the first fixed plate (8), the threaded rod (402) is rotatably installed at the bottom of the first fixed plate (8), the output shaft of the motor (4) and the threaded rod (402) are commonly sleeved with the belt (401), and the n-shaped block (905) is threadedly connected with the threaded rod (402).

3. The coating machine for lithium battery production according to claim 2, characterized in that, The first clamping plate (7), the second clamping plate (701) and the electric sliding rail (702) are further included, the electric sliding rails (702) are symmetrically arranged on the two longitudinal inner walls of the U-shaped frame (1), the second clamping plates (701) are symmetrically installed on the sliding blocks of the electric sliding rails (702), and the first clamping plates (7) are installed on the second clamping plates (701).

4. The coating machine for lithium battery production according to claim 3, characterized in that, The pressing plate (901), the tension spring (902) and the second guide rod (903) are further included, the second guide rods (903) are symmetrically installed at the bottom of the first fixed plate (8), the pressing plates (901) are slidably installed on the second guide rods (903), the tension springs (902) are arranged between the bottom of the pressing plate (901) and the second guide rod (903), and the pressing plate (901) is slidably connected with the first clamping plate (7).

5. The coater for lithium battery production according to claim 4, wherein The mounting plate (5), the compression spring (501) and the first guide rod (502) are further included, not less than two first guide rods (502) are symmetrically arranged in the U-shaped frame (1), the mounting plates (5) are slidably installed on the first guide rods (502), the first fixed plate (8) is fixedly connected with the mounting plate (5), and the compression spring (501) is arranged between the bottom of the mounting plate (5) and the inner wall of the U-shaped frame (1).

6. The coating machine for lithium battery production according to claim 5, characterized in that, The supporting plate (6) is further included, the supporting plate (6) is arranged on the U-shaped frame (1) and is located directly below the coating wheel (904).

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