A lithium battery separator spraying machine with a tensioner

Abstract

The utility model discloses a lithium battery separator spraying machine with tensioner, including frame, set up in the spraying mechanism of frame one end and set up in the drying mechanism of frame one end, the drying mechanism includes setting up in the drying box of frame top one end, the both sides of drying box are provided with the through slot for the isolation film in and out, the inner chamber upper end of drying box is provided with the drying board, the bottom of drying board is evenly provided with the air outlet, the upper end of drying box is provided with the air collecting hood that communicates with drying board, the inside of air collecting hood is provided with double -shaft motor. This lithium battery separator spraying machine with tensioner, through setting up drying mechanism in the one end of frame, directly carries out drying operation after spraying, simple structure, convenient to use, has improved the efficiency, and the cooperation setting conical screen cover can filter dust, avoids the attachment on the isolation film when drying.

Description

Technical Field

[0001] This utility model relates to the field of spraying equipment, and in particular to a lithium battery separator spraying machine with a tensioner. Background Technology

[0002] The lithium battery separator coating machine is a key piece of equipment in lithium battery manufacturing. Its core function is to uniformly coat the surface of the polymer separator with a functional coating (such as ceramic particles) to improve the thermal stability and safety of the battery.

[0003] Existing equipment requires separate drying equipment to dry the coating after spraying, resulting in a complex production line layout, increased floor space, and significantly higher production costs due to additional energy consumption. Furthermore, the segmented spraying and drying processes can lead to mismatched production cycles, limiting overall efficiency and making it difficult to meet the demands of high-cycle continuous production. Additionally, while existing tensioning structures can adjust tension, their rigid control methods (such as fixed pressure rollers and unbuffered mechanical locking) can easily lead to localized stress concentrations, especially during high-speed operation or sudden tension changes. This can cause irreversible tensile deformation or microcracks in the ultra-thin separator, affecting the separator's mechanical integrity and battery safety.

[0004] Therefore, it is necessary to propose a lithium battery separator coating machine with a tensioner to solve the above problems. Utility Model Content

[0005] The main purpose of this invention is to provide a lithium battery separator coating machine with a tensioner, which can effectively solve the problems in the background art.

[0006] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0007] A lithium battery separator coating machine with a tensioner includes a frame, a coating mechanism disposed at one end of the frame, and a drying mechanism disposed at one end of the frame. The drying mechanism includes a drying chamber disposed at the top end of the frame. The drying chamber has through slots on both sides for the separator to enter and exit. A drying plate is disposed at the upper end of the inner cavity of the drying chamber. Air outlet holes are evenly disposed at the bottom of the drying plate. An air collecting hood communicating with the drying plate is disposed at the upper end of the drying chamber. A dual-axis motor is disposed inside the air collecting hood. Both ends of the dual-axis motor are provided with rotating shafts driven by the dual-axis motor. Fan blades are disposed on the telescopic rotating shaft at the lower end.

[0008] The upper end of the air collecting hood is provided with a conical mesh cover, the top of the upper rotating shaft extends to the top of the conical mesh cover, and a connecting plate is movably provided on the top side wall of the upper telescopic conical mesh cover. A cleaning brush corresponding to the conical mesh cover is provided at the bottom of the connecting plate.

[0009] Preferably, a connecting seat is evenly arranged around the top side wall of the upper telescopic pivot, and a pin is movably arranged on the connecting seat, with one end of the connecting plate connected to the pin.

[0010] Preferably, a counterweight ball is provided at the end of the connecting plate away from the rotating shaft.

[0011] Preferably, a tensioning mechanism is provided at one end of the frame. The tensioning mechanism includes a tensioning frame located at the top of the frame away from the drying mechanism. Adjustment grooves are symmetrically arranged on both side walls of the tensioning frame. Adjustment frames are vertically and movably connected to the adjustment grooves. A lifting column extending to the top of the tensioning frame is provided at the top of the adjustment frame. A lifting frame is provided at the upper ends of the two lifting columns. A cylinder for driving the lifting frame to rise and fall is provided at the upper end of the tensioning frame. A tensioning roller is rotatably arranged between the two adjustment frames.

[0012] Preferably, a buffer block is vertically and movably connected to the inner side of the adjusting frame, the two ends of the tension roller are rotatably connected to the side walls of the two buffer blocks, a guide post is provided on the inner side of the adjusting frame, the buffer block is movably sleeved on the outer side of the guide post, and a spring is provided at the bottom of the buffer block.

[0013] Preferably, the top of the frame near the tensioning frame is provided with guide rollers located on both sides of the tensioning frame, and the top of the frame near the drying chamber is provided with support rollers located on both sides of the drying chamber.

[0014] Compared with the prior art, this utility model provides a lithium battery separator coating machine with a tensioner, which has the following advantages:

[0015] This lithium battery separator coating machine with a tensioner features a drying mechanism located at one end of the frame. After coating, the machine directly performs the drying operation. It has a simple structure, is easy to use, and improves efficiency. The conical mesh filter can filter dust and prevent it from adhering to the separator during drying. Furthermore, with the addition of a connecting plate, cleaning brush, and counterweight ball, the conical mesh can be automatically cleaned when drying is about to end, preventing clogging and affecting subsequent use. Utilizing the principle of centrifugal force, the cleaning brush separates from the conical mesh during drying, reducing wear, and then contacts for cleaning at the end, making it convenient to use.

[0016] This lithium battery separator coating machine with a tensioner uses a buffer block and spring located on an adjusting frame, with the tensioning roller rotating on the side wall of the buffer block, to buffer the separator and avoid damage caused by rigid tension. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of this utility model;

[0018] Figure 2This is a schematic diagram of the bottom structure of the drying oven of this utility model;

[0019] Figure 3 This is a structural diagram of the drying oven of this utility model in its disassembled state;

[0020] Figure 4 This is a schematic diagram of the structure of the conical mesh cover of this utility model;

[0021] Figure 5 This is a schematic diagram of the tensioning mechanism of this utility model;

[0022] Figure 6 This is a structural diagram of the adjustment frame and buffer block of this utility model in their disassembled state.

[0023] In the diagram: 1. Frame; 2. Spraying mechanism; 3. Drying box; 4. Tensioning frame; 5. Support roller; 6. Guide roller; 7. Drying plate; 8. Air outlet; 9. Through slot; 10. Air collector hood; 11. Conical mesh cover; 12. Dual-axis motor; 13. Fan blade; 14. Connecting plate; 15. Cleaning brush; 16. Counterweight ball; 17. Rotating shaft; 18. Connecting seat; 19. Pin; 20. Tensioning roller; 21. Lifting frame; 22. Cylinder; 23. Lifting column; 24. Adjusting slot; 25. Adjusting frame; 26. Buffer block; 27. Guide column; 28. Spring; 29. ​​Guide rail. Detailed Implementation

[0024] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0025] like Figure 1-6As shown, a lithium battery separator coating machine with a tensioner includes a frame 1, a coating mechanism 2 disposed at one end of the frame 1, and a drying mechanism disposed at one end of the frame 1. The drying mechanism includes a drying chamber 3 disposed at the top end of the frame 1. The drying chamber 3 has through slots 9 on both sides for the separator to enter and exit. A drying plate 7 is disposed at the upper end of the inner cavity of the drying chamber 3. Air outlet holes 8 are evenly disposed at the bottom of the drying plate 7. An air collecting hood 10 communicating with the drying plate 7 is disposed at the upper end of the drying chamber 3. A dual-axis motor 12 is disposed inside the air collecting hood 10. A rotating shaft 17 driven by the dual-axis motor 12 is disposed at both ends of the dual-axis motor 12. A telescopic rotating shaft 17 is disposed at the lower end. The fan blades 13 are provided on the top. In order to filter the air, a conical mesh cover 11 is provided on the upper end of the air collecting cover 10. In order to clean the conical mesh cover 11, the top of the upper rotating shaft 17 extends to the top of the conical mesh cover 11. A connecting plate 14 is movably provided on the top side wall of the upper telescopic conical mesh cover 11. A cleaning brush 15 corresponding to the conical mesh cover 11 is provided at the bottom of the connecting plate 14. Specifically, a connecting seat 18 is evenly arranged around the top side wall of the upper telescopic rotating shaft 17. A pin 19 is movably arranged on the connecting seat 18. One end of the connecting plate 14 is connected to the pin 19. A counterweight ball 16 is provided on the end of the connecting plate 14 away from the rotating shaft 17.

[0026] In addition, a tensioning mechanism is provided at one end of the frame 1. The tensioning mechanism includes a tensioning frame 4 located at the top of the frame 1 away from the drying mechanism. Adjustment grooves 24 are symmetrically arranged on the side walls at both ends of the tensioning frame 4. Adjustment frames 25 are vertically and movably connected to the adjustment grooves 24. Specifically, guide rails 29 are provided on the inner wall of the adjustment grooves 24. The adjustment frames 25 are movably connected to the guide rails 29. A lifting column 23 extending to the top of the tensioning frame 4 is provided at the top of the adjustment frame 25. A lifting frame 21 is provided at the upper end of the two lifting columns 23. A cylinder 22 for driving the lifting frame 21 to rise and fall is provided at the upper end of the tensioning frame 4. A tensioning roller 20 is rotatably arranged between the two adjustment frames 25.

[0027] Furthermore, a buffer block 26 is vertically and movably connected to the inner side of the adjusting frame 25, and the two ends of the tension roller 20 are rotatably connected to the side walls of the two buffer blocks 26. A guide post 27 is provided on the inner side of the adjusting frame 25, and the buffer block 26 is movably sleeved on the outer side of the guide post 27. A spring 28 is provided at the bottom of the buffer block 26.

[0028] In order to ensure stable delivery and guidance of the separator film, guide rollers 6 are provided on both sides of the tensioning frame 4 at the top end of the frame 1 near the tensioning frame 4, and support rollers 5 are provided on both sides of the drying box 3 at the top end of the frame 1 near the drying box 3.

[0029] In use, the free end of the separator membrane sequentially passes over the bottom of the guide roller 6 at the very end, the top of the tension roller 20, the bottom of the guide roller 6 near the spraying mechanism 2, the top of the support roller 5 near the spraying mechanism 2, the two through slots 9, and the top of the support roller 5 at the very end. During this process, the spraying mechanism 2 sprays the separator membrane, and then it enters the drying chamber 3 through the through slots 9. The air outlet 8 at the bottom of the drying plate 7 blows air downwards for drying. Specifically, the dual-shaft motor 12 drives the fan blade 13 to rotate, and the fan blade 13 draws in air. The air can be heated and then blown downwards. During this process, the upper rotating shaft 17 drives the connecting plate 14 to rotate. Under centrifugal force, the connecting plate 14 gradually... After the conical mesh cover 11 is separated and drying is completed, the rotation speed of the rotating shaft 17 gradually decreases, the connecting plate 14 gradually flips downwards to reset, and the cleaning brush 15 contacts the surface of the conical mesh cover 11, thereby cleaning the surface of the conical mesh cover 11 and avoiding blockage that could affect subsequent use. In addition, when it is necessary to adjust the tension, the control cylinder 22 drives the lifting frame 21, the lifting column 23, and the adjusting frame 25 to rise and fall as a whole. Then, the adjusting frame 25 drives the tension roller 20 to rise and fall through the buffer block 26 to adjust the tension. When the isolation membrane passes through the tension roller 20, it will press down on the tension roller 20. The tension roller 20 compresses the spring 28 through the buffer block 26, thus achieving buffer protection.

[0030] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A lithium battery separator coating machine with a tensioner, comprising a frame (1), a coating mechanism (2) disposed at one end of the frame (1), and a drying mechanism disposed at one end of the frame (1), characterized in that: The drying mechanism includes a drying box (3) located at one end of the top of the frame (1). The drying box (3) has through slots (9) on both sides for the entry and exit of the isolation membrane. The upper end of the inner cavity of the drying box (3) is provided with a drying plate (7). The bottom of the drying plate (7) is evenly provided with air outlets (8). The upper end of the drying box (3) is provided with an air collecting hood (10) communicating with the drying plate (7). The inner side of the air collecting hood (10) is provided with a dual-axis motor (12). Both ends of the dual-axis motor (12) are provided with rotating shafts (17) driven by the dual-axis motor (12). The lower telescopic rotating shaft (17) is provided with fan blades (13). The upper end of the air collecting hood (10) is provided with a conical mesh cover (11), the top of the upper rotating shaft (17) extends to the top of the conical mesh cover (11), and a connecting plate (14) is movably provided on the top side wall of the upper telescopic conical mesh cover (11). The bottom of the connecting plate (14) is provided with a cleaning brush (15) corresponding to the conical mesh cover (11).

2. The lithium battery separator coating machine with a tensioner according to claim 1, characterized in that: The top sidewall of the telescopic pivot (17) at the upper end is uniformly surrounded by a connecting seat (18), and a pin (19) is movably arranged on the connecting seat (18). One end of the connecting plate (14) is connected to the pin (19).

3. A lithium battery separator coating machine with a tensioner according to claim 1, characterized in that: The connecting plate (14) is provided with a counterweight ball (16) at the end away from the rotating shaft (17).

4. A lithium battery separator coating machine with a tensioner according to claim 1, characterized in that: One end of the frame (1) is provided with a tensioning mechanism, which includes a tensioning frame (4) located at the top of the frame (1) away from the drying mechanism. The tensioning frame (4) has symmetrical adjustment grooves (24) on both sides. The adjustment grooves (24) are vertically and movably connected to an adjustment frame (25). The top of the adjustment frame (25) is provided with a lifting column (23) extending to the top of the tensioning frame (4). The upper ends of the two lifting columns (23) are jointly provided with a lifting frame (21). The upper end of the tensioning frame (4) is provided with a cylinder (22) for driving the lifting frame (21) to rise and fall. A tensioning roller (20) is rotatably provided between the two adjustment frames (25).

5. A lithium battery separator coating machine with a tensioner according to claim 4, characterized in that: The inner side of the adjusting frame (25) is vertically and movably connected to a buffer block (26). The two ends of the tension roller (20) are rotatably connected to the side walls of the two buffer blocks (26). The inner side of the adjusting frame (25) is provided with a guide post (27). The buffer block (26) is movably sleeved on the outside of the guide post (27). The bottom of the buffer block (26) is provided with a spring (28).

6. A lithium battery separator coating machine with a tensioner according to any one of claims 1-5, characterized in that: The top of the frame (1) near the tensioning frame (4) is provided with guide rollers (6) located on both sides of the tensioning frame (4), and the top of the frame (1) near the drying box (3) is provided with support rollers (5) located on both sides of the drying box (3).

Images