Coating device for lithium battery processing

Abstract

The utility model provides a coating device for processing a lithium battery, which relates to the technical field of coating devices and comprises a coating machine, a plurality of tension rollers are symmetrically and rotatably connected to the inner wall of the coating machine, a coating plate is fixedly connected to one side of the inner wall of the coating machine, and the tension rollers are symmetrically and rotatably connected to the other side of the inner wall of the coating machine. A plurality of tension rollers are arranged on the inner wall of the coating machine, coating heads are connected into grooves in the two sides of the inner wall of the coating machine in a sliding mode, limiting devices are arranged on the inner wall of the coating machine and the outer surfaces of the tension rollers, and a cleaning device is arranged on one side of the coating machine. The motor is started to drive the two limiting frames to slide on the outer surfaces of the multiple tension rollers in the opposite directions through the balls, so that one sides of the limiting frames limit the two sides of the metal foil, in this way, in the coating machining process, if external force is exerted on the metal foil, the metal foil is not prone to deviation or dislocation on the tension rollers, and the two sides of the metal foil can be limited and blocked by the limiting frames; therefore, the coating processing effect and the processing efficiency can be improved.

Description

Technical Field

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

[0002] The coating device is used to evenly coat the positive and negative electrode slurries on the metal foil during lithium battery processing, and form an electrode film with a certain thickness.

[0003] When using a coating machine to evenly coat the positive and negative electrode slurries on the metal foil used in lithium batteries, the metal foil will first pass through the outer surfaces of several tension rollers according to the usage, and pass through the middle of two coating heads. During the coating process, the driving mechanism inside the coating machine is started to drive the two coating heads to move back and forth in the two grooves in the inner wall of the coating machine, and the positive and negative electrode slurries on the coating plate are evenly coated on the metal foil to complete the processing. Since the metal foil is subjected to external force when moving on the tension roller, it may be offset and misaligned on the tension roller, resulting in some positions not being coated, and secondary processing is required, which reduces the coating effect and processing efficiency. Utility Model Content

[0004] The purpose of the utility model is to solve the shortcomings of the prior art and to propose a coating device for lithium battery processing.

[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a coating device for lithium battery processing, comprising a coating machine, the inner wall of the coating machine is symmetrically connected to a plurality of tension rollers, one side of the inner wall of the coating machine is fixedly connected to a coating plate, and the grooves on both sides of the inner wall of the coating machine are slidably connected to coating heads, a limiting device is provided on the inner wall of the coating machine and the outer surface of the plurality of tension rollers, and a cleaning device is provided on one side of the coating machine, the limiting device comprises a rectangular plate and a motor, one side of the rectangular plate is fixedly connected to the bottom of the coating machine, a slide groove is symmetrically opened on one side of the rectangular plate, the inner wall of the slide groove is slidably connected to a tooth plate, one side of the tooth plate is fixedly connected to a limiting frame, the two ends of the plurality of tension rollers are respectively inserted into the plurality of inner walls on the two limiting frames, the outer surface of the motor is symmetrically fixedly connected to a bracket, one side of the bracket is fixedly connected to one side of the rectangular plate, the output end of the motor is fixedly connected to a gear, one end of the gear is rotatably connected to one side of the rectangular plate, and the outer surface of the gear is meshed with one side of the two tooth plates.

[0006] The effect achieved by the above components is as follows: by setting a limit device, when using a coating machine to evenly coat the positive and negative electrode slurries on the metal foil used in lithium batteries, the metal foil will first pass through the outer surface of several tension rollers according to the usage, and pass through the middle of the two coating heads. At this time, according to the width of the metal foil to be coated, the motor on the starting bracket drives the gear to rotate on the rectangular plate, thereby driving the two tooth plates to slide in opposite directions in the inner wall of the slide groove, and driving the two limit frames to slide in opposite directions on the outer surfaces of several tension rollers, so that one side of the metal foil limits the two sides. In this way, during the coating process, if the metal foil is subjected to external force, it is not easy to deviate and misalign on the tension roller, and the two sides will be blocked by the limit frames, thereby improving the coating effect and processing efficiency. During the coating process, the driving mechanism inside the coating machine is started to drive the two coating heads to move back and forth in the two grooves in the inner wall of the coating machine, and the positive and negative electrode slurries on the coating plate are evenly coated on the metal foil to complete the processing.

[0007] Preferably, a protective cover is fixedly connected to one side of the two brackets, and the motor is arranged in the inner wall of the protective cover.

[0008] The effect achieved by the above components is: by providing a protective cover, the bottom of the motor can be protected, so that the motor is not easily hit when the coating machine is moved, thereby improving the service life of the motor.

[0009] Preferably, one side of the tooth plate is fixedly connected to a reinforcement rod, and one side of the reinforcement rod is fixedly connected to one side of the limiting frame.

[0010] The effect achieved by the above components is: by setting the reinforcement rod, the contact area between the limit frame and one side of the tooth plate can be increased, making the connection more firm and stable, and not prone to breakage and damage.

[0011] Preferably, a plurality of balls are rotatably connected to the inner wall of the limiting frame, and the plurality of balls are arranged at equal distances.

[0012] The effect achieved by the above components is: by setting the ball bearings, the sliding wear and rotational wear between the outer surface of the tension roller and the inner wall of the limit frame can be reduced, which facilitates the movement of the limit frame on the tension roller without hindering the rotation of the tension roller.

[0013] Preferably, the longitudinal section of the chute is T-shaped, and the longitudinal section of one end of the tooth plate is T-shaped.

[0014] The effect achieved by the above components is: by setting the slide groove and the tooth plate into a T shape, the tooth plate can be made more stable when sliding back and forth in the inner wall of the slide groove and is less likely to shake.

[0015] Preferably, the cleaning device comprises two connecting blocks, one side of the connecting block is fixedly connected to one side of the coating machine, and a soft brush is symmetrically rotatably connected between the one sides of the two connecting blocks.

[0016] The effect achieved by the above components is: by setting up a cleaning device, when carrying out the coating process, the metal foil is first passed between the two soft brushes on the connecting block before being wrapped and stretched on the tension roller, so that the bristles on the soft brushes can be tightly attached to both sides of the metal foil. In this way, when it is pulled and coated, the soft brush can clean off the dust and impurities attached to its surface, avoid affecting the subsequent coating process, and improve the processing effect and the quality of the metal foil after processing.

[0017] Preferably, the outer surfaces of both ends of the soft brush are fixedly connected with bearings, and the outer ring of the bearing is fixedly connected to one side of the connecting block.

[0018] The effects achieved by the above components are: by providing the bearing, the rotational wear between the soft brush and the connecting block can be reduced, thereby increasing the service life of the soft brush.

[0019] Preferably, a rectangular rod is symmetrically fixedly connected between one side of the two connecting blocks, and a sponge block is fixedly connected to one side of the rectangular rod.

[0020] The effect achieved by the above components is: by arranging the rectangular rod and the sponge block, the surface of the metal foil cleaned by the soft brush can be wiped and cleaned for the second time, some fine hair and dust can be cleaned away, thereby improving the cleaning effect.

[0021] Compared with the prior art, the advantages and positive effects of the present invention are:

[0022] In the utility model, a limiting device is provided and a motor is started to drive two limiting frames to slide in opposite directions on the outer surfaces of several tension rollers with the help of balls, so that one side of the limiting frame limits the two sides of the metal foil. In this way, when the coating process is carried out, if the metal foil is subjected to external force, it is not easy for the metal foil to be offset or misplaced on the tension roller, and the two sides will be blocked by the limiting frames, thereby improving the coating process effect and processing efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model;

[0024] Figure 2 This is a schematic diagram of the three-dimensional structure of the rectangular plate of the utility model;

[0025] Figure 3 for Figure 2 Schematic diagram of the central structure;

[0026] Figure 4It is a schematic diagram of the three-dimensional structure of the connecting block of the utility model.

[0027] Legend: 1. Coating machine; 2. Limiting device; 3. Cleaning device; 4. Tension roller; 5. Coating head; 6. Coating plate; 21. Rectangular plate; 22. Slide; 23. Tooth plate; 24. Limiting frame; 25. Motor; 26. Bracket; 27. Gear; 28. Protective cover; 29. Reinforcement rod; 210. Ball; 31. Connecting block; 32. Soft brush; 33. Bearing; 34. Rectangular rod; 35. Sponge block. DETAILED DESCRIPTION

[0028] Example 1, as Figure 1-4 As shown, a coating device for lithium battery processing includes a coating machine 1, the inner wall of the coating machine 1 is symmetrically connected to a plurality of tension rollers 4, one side of the inner wall of the coating machine 1 is fixedly connected to a coating plate 6, and grooves on both sides of the inner wall of the coating machine 1 are slidably connected to coating heads 5. A limiting device 2 is provided on the inner wall of the coating machine 1 and the outer surface of the plurality of tension rollers 4. A cleaning device 3 is provided on one side of the coating machine 1. The limiting device 2 includes a rectangular plate 21 and a motor 25. One side of the rectangular plate 21 is fixedly connected to the bottom of the coating machine 1. One side of the rectangular plate 21 is fixedly connected to the bottom of the coating machine 1. A slide groove 22 is symmetrically opened on the side, and the inner wall of the slide groove 22 is slidably connected to a tooth plate 23. One side of the tooth plate 23 is fixedly connected to a limit frame 24. The two ends of several tension rollers 4 are respectively inserted into several inner walls on the two limit frames 24. The outer surface of the motor 25 is symmetrically fixedly connected to the bracket 26. One side of the bracket 26 is fixedly connected to one side of the rectangular plate 21. The output end of the motor 25 is fixedly connected to a gear 27. One end of the gear 27 is rotatably connected to one side of the rectangular plate 21. The outer surface of the gear 27 is meshed with one side of the two tooth plates 23. When using the coating machine 1 to evenly coat the positive and negative electrode slurries on the metal foil used in lithium batteries, the metal foil will first be passed through the outer surfaces of several tension rollers 4 according to the usage, and passed through the middle of the two coating heads 5. At this time, according to the width of the metal foil to be coated, the motor 25 on the bracket 26 is started to drive the gear 27 to rotate on the rectangular plate 21, thereby driving the two tooth plates 23 to slide in opposite directions on the inner wall of the slide 22, and driving the two limit frames 24 to slide in opposite directions on the outer surfaces of several tension rollers 4, so that one side of the metal foil is limited on both sides. In this way, during the coating process, if the metal foil is subjected to external force, it is not easy to deviate and misalign on the tension roller 4, and the two sides will be limited by the limit frames 24, thereby improving the coating effect and processing efficiency. During the coating process, the driving mechanism inside the coating machine 1 is started to drive the two coating heads 5 to move back and forth in the two grooves in the inner wall of the coating machine 1, and the positive and negative electrode slurries on the coating plate 6 are evenly coated on the metal foil to complete the process.

[0029] Reference Figure 2 and Figure 3 As shown, this embodiment discloses that a protective cover 28 is fixedly connected to one side of the two brackets 26, and the motor 25 is arranged in the inner wall of the protective cover 28. By providing the protective cover 28, the bottom of the motor 25 can be protected, so that when the coating machine 1 is transported, the motor 25 is not easily hit, thereby improving the service life of the motor 25. A reinforcing rod 29 is fixedly connected to one side of the tooth plate 23, and one side of the reinforcing rod 29 is fixedly connected to one side of the limit frame 24. By providing the reinforcing rod 29, the contact area between the limit frame 24 and one side of the tooth plate 23 can be increased, making the connection more firm and stable, and less likely to break or damage.

[0030] Reference Figure 2 and Figure 3 As shown, this embodiment discloses that a plurality of balls 210 are rotatably connected to the inner wall of the limit frame 24, and the plurality of balls 210 are arranged at equal distances. By providing the balls 210, the sliding wear and rotational wear between the outer surface of the tension roller 4 and the inner wall of the limit frame 24 can be reduced, and the limit frame 24 can be facilitated to move on the tension roller 4 while not hindering the rotation of the tension roller 4. The longitudinal section of the chute 22 is T-shaped, and the longitudinal section of one end of the tooth plate 23 is T-shaped. By setting both the chute 22 and the tooth plate 23 in a T-shape, the tooth plate 23 can be made more stable when sliding back and forth in the inner wall of the chute 22 and less likely to shake.

[0031] Reference Figure 4 As shown, this embodiment discloses a cleaning device 3 comprising two connecting blocks 31, one side of which is fixedly connected to one side of the coating machine 1, and a soft brush 32 symmetrically connected to one side of the two connecting blocks 31. During the coating process, before the metal foil is wrapped and stretched on the tension roller 4, it is first passed between the two soft brushes 32 on the connecting block 31 so that the bristles on the soft brushes 32 can be closely attached to both sides of the metal foil. In this way, when the metal foil is pulled and coated, the soft brushes 32 can clean away dust and impurities attached to the surface, thereby preventing it from affecting the subsequent coating process and improving the processing effect and the quality of the processed metal foil.

[0032] Reference Figure 4 As shown, this embodiment discloses a soft brush 32 with bearings 33 fixedly connected to the outer surfaces of both ends. The outer ring of the bearing 33 is fixedly connected to one side of the connecting block 31. The provision of the bearings 33 reduces rotational wear between the soft brush 32 and the connecting block 31, thereby increasing the service life of the soft brush 32. Rectangular rods 34 are symmetrically fixedly connected between the two connecting blocks 31 on one side, and a sponge block 35 is fixedly connected to one side of the rectangular rods 34. The provision of the rectangular rods 34 and sponge block 35 allows the metal foil surface cleaned by the soft brush 32 to be wiped a second time, removing some fine lint and dust, thereby improving the cleaning effect.

[0033] Working principle: When using the coating machine 1 to evenly coat the positive and negative electrode slurries on the metal foil used for lithium batteries, the metal foil will first pass through the outer surface of several tension rollers 4 according to the usage, and pass through the middle of two coating heads 5. At this time, the width of the metal foil to be coated can be adjusted according to the width of the metal foil to be processed. The motor 25 on the starting bracket 26 drives the gear 27 to rotate on the rectangular plate 21, thereby driving the two tooth plates 23 to slide in opposite directions on the inner wall of the slide trough 22, and driving the two limit frames 24 to slide on several tension rollers with the help of the ball 210. 4 slides in opposite directions on the outer surface of the coating machine 1, so that one side of the coating machine 1 limits the two sides of the metal foil. In this way, when the coating process is carried out, if the metal foil is subjected to external force, it is not easy for the metal foil to be offset and misplaced on the tension roller 4, and the two sides will be limited and blocked by the limiting frame 24, thereby improving the effect and processing efficiency of the coating process. During the coating process, the driving mechanism inside the coating machine 1 is started to drive the two coating heads 5 to move back and forth in the two grooves in the inner wall of the coating machine 1, and the positive and negative electrode slurries on the coating plate 6 are evenly coated on the metal foil to complete the process.

[0034] During the coating process, before the metal foil is wrapped and stretched on the tension roller 4, it is first passed between the two soft brushes 32 on the connecting block 31 and between the two rectangular rods 34 and the two sponge blocks 35, so that the bristles on the soft brush 32 and one side of the sponge block 35 are tightly attached to both sides of the metal foil. In this way, when it is pulled for coating, the soft brush 32 can clean the dust and impurities attached to its surface, and the sponge block 35 can wipe the surface of the metal foil for a second time to clean some fine hair and dust, thereby improving the cleaning effect, avoiding affecting the subsequent coating process, and improving the processing effect and the quality of the metal foil after processing.

Claims

1. A coating device for processing lithium batteries, comprising a coating machine (1), characterized in that: The inner wall of the coating machine (1) is symmetrically connected to a plurality of tension rollers (4), one side of the inner wall of the coating machine (1) is fixedly connected to a coating plate (6), and grooves on both sides of the inner wall of the coating machine (1) are slidably connected to coating heads (5). A limiting device (2) is provided on the inner wall of the coating machine (1) and the outer surface of the plurality of tension rollers (4). A cleaning device (3) is provided on one side of the coating machine (1), and the limiting device (2) includes a rectangular plate (21) and a motor (25). One side of the rectangular plate (21) is fixedly connected to the bottom of the coating machine (1), and one side of the rectangular plate (21) is symmetrically provided with a slide groove (22). The inner wall of the slide groove (22) is slidably connected to a tooth plate (23), one side of the tooth plate (23) is fixedly connected to a limiting frame (24), and the two ends of the plurality of tension rollers (4) are respectively inserted into the plurality of inner walls of the two limiting frames (24). The outer surface of the motor (25) is symmetrically fixedly connected to a bracket (26), one side of the bracket (26) is fixedly connected to one side of the rectangular plate (21), and the output end of the motor (25) is fixedly connected to a gear (27), one end of the gear (27) is rotatably connected to one side of the rectangular plate (21), and the outer surface of the gear (27) is meshed with one side of the two tooth plates (23).

2. A coating device for lithium battery processing according to claim 1, characterized in that: A protective cover (28) is fixedly connected to one side of the two brackets (26), and the motor (25) is arranged in the inner wall of the protective cover (28).

3. The coating device for lithium battery processing according to claim 1, characterized in that: One side of the tooth plate (23) is fixedly connected to a reinforcement rod (29), and one side of the reinforcement rod (29) is fixedly connected to one side of the limiting frame (24).

4. The coating device for lithium battery processing according to claim 1, characterized in that: A plurality of balls (210) are rotatably connected to the inner wall of the limiting frame (24), and the plurality of balls (210) are arranged at equal distances.

5. The coating device for lithium battery processing according to claim 1, characterized in that: The longitudinal section of the chute (22) is in a T-shape, and the longitudinal section of one end of the tooth plate (23) is in a T-shape.

6. The coating device for lithium battery processing according to claim 1, characterized in that: The cleaning device (3) comprises two connecting blocks (31), one side of the connecting block (31) is fixedly connected to one side of the coating machine (1), and a soft brush (32) is symmetrically rotatably connected between the one sides of the two connecting blocks (31).

7. A coating device for lithium battery processing according to claim 6, characterized in that: The outer surfaces of both ends of the soft brush (32) are fixedly connected to bearings (33), and the outer ring of the bearing (33) is fixedly connected to one side of the connecting block (31).

8. The coating device for lithium battery processing according to claim 6, characterized in that: A rectangular rod (34) is symmetrically and fixedly connected between one side of the two connecting blocks (31), and a sponge block (35) is fixedly connected to one side of the rectangular rod (34).

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