Oily diaphragm coating device with drying structure

Abstract

The utility model relates to the technical field of diaphragm production, and discloses an oily diaphragm coating device with a drying structure, which comprises a device main body, and one end of the top of the device main body is provided with an unwinding roller. According to the oily diaphragm coating device with the drying structure, a coated diaphragm enters the extraction tank, an organic solvent is removed through extraction liquid in the extraction tank, then the extracted diaphragm enters the drying oven to be dried, the surfaces of the two sides of the diaphragm are dried through the drying device, meanwhile, the structure of an air suction device, a connecting pipe and an air suction cover is utilized, and the drying efficiency is improved. According to the drying oven, hot and humid air in the drying oven can be extracted, the drying effect is promoted, flowing of hot air in the drying oven is accelerated, the hot air is more evenly distributed in the drying oven, an oily diaphragm is heated more evenly in the drying process, the quality problem caused by local overheating or supercooling is avoided, and the finished product rate and the product quality of coated diaphragms are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of diaphragm production, in particular to an oil-based diaphragm coating device with a drying structure. Background Art

[0002] As a key component of electric vehicles, the performance of lithium batteries directly affects the cruising range, safety and service life of electric vehicles. As an important part of lithium batteries, the performance of diaphragms is equally crucial. Diaphragms mainly play a role in blocking the contact between the positive and negative electrodes and preventing battery short circuits in lithium batteries. However, traditional diaphragm materials have deficiencies in heat resistance and adhesion to the positive and negative electrodes, which limits the improvement of the performance of lithium batteries. Therefore, in order to improve the performance of diaphragms, a specific coating is usually applied to their surfaces.

[0003] During the use of traditional oil-based diaphragm coating devices with a drying structure, drying is generally carried out after the diaphragm is extracted. Since there is a large amount of hot and humid air inside the oven during the drying process of the diaphragm by the drying device, it cannot be quickly discharged, reducing the drying efficiency. Moreover, the fluidity of the hot air is poor, and the hot air cannot be evenly distributed inside the oven, resulting in quality problems such as local overheating or overcooling of the diaphragm, reducing the yield and product quality of the coated diaphragm. Summary of the Utility Model

[0004] The technical problem to be solved by the utility model is that there are disadvantages in the prior art that the hot and humid air inside the oven cannot be quickly discharged and the fluidity of the hot air inside the oven is poor during the use of an oil-based diaphragm coating device with a drying structure. For this reason, we propose an oil-based diaphragm coating device with a drying structure.

[0005] In order to achieve the above object, the present application adopts the following technical solution: An oil-based diaphragm coating device with a drying structure, including a device main body. One end of the top of the device main body is provided with an unwinding roller. The top of the device main body is provided with a coating device on the right side of the unwinding roller. The top of the device main body is provided with two guiding rollers on the right side of the coating device. The bottom of the device main body is fixed with an extraction tank between the two guiding rollers. The other end of the top of the device main body is provided with an oven. The top of the oven is provided with a suction device. One end of the suction device is fixedly connected with a connecting pipe and penetrates through the inside of the oven. One end of the connecting pipe inside the oven is fixed with a suction hood. The other end of the suction device is fixedly penetrated with an exhaust pipe. Both ends on one side of the oven are provided with drying devices.

[0006] Preferably, both sides inside the oven are fixed with mounting seats. One end of the mounting seat is provided with a fan. The positions of the mounting seats are respectively located at the top and bottom of the diaphragm.

[0007] Preferably, a collection box is installed inside the device main body. Fixing blocks are fixed on both sides of the collection box. Shells are fixed on both sides of the bottom of the device main body. A rotating rod passes through and rotates inside the shell. An elliptical plate is fixed at one end of the rotating rod inside the shell. A moving plate is slidably connected inside the shell. A limiting plate is fixed on one side of the moving plate. A limiting groove for cooperating with the limiting plate is formed at one end of the fixing block.

[0008] Preferably, first springs are fixed on both sides inside the shell, and the other ends of the first springs are fixed to the moving plate.

[0009] Preferably, a square rod is slidably connected inside the rotating rod. A knob is fixed at one end of the square rod. A plug rod is fixed on one side of the knob. A slot for cooperating with the plug rod is formed on one side of the shell.

[0010] Preferably, sliding grooves are formed on both sides inside the rotating rod. Sliding blocks are slidably connected inside the sliding grooves, and the other ends of the sliding blocks are fixed to the square rod.

[0011] Preferably, a second spring is fixed inside the rotating rod, and the other end of the second spring is fixed to the square rod.

[0012] The technical effects and advantages of the present utility model:

[0013] In the present utility model, the diaphragm enters the device from the unwinding roller. The oil-based slurry is respectively coated on both side surfaces of the diaphragm by the coating device. The coated diaphragm enters the extraction tank, and the organic solvent is removed by the extraction liquid in the extraction tank. Then the extracted diaphragm enters the oven for drying treatment. The drying device dries both side surfaces of the diaphragm. At the same time, by using the structure of the air suction device, the connecting pipe and the air suction hood, the hot and humid air in the oven can be extracted, promoting the drying effect, accelerating the flow of hot air inside the oven, making the hot air more evenly distributed in the oven, so that the oil-based diaphragm is heated more evenly during the drying process, avoiding quality problems caused by local overheating or overcooling, and improving the yield and product quality of the coated diaphragm. Description of the Drawings

[0014] Figure 1 is the front view structural schematic diagram of the present utility model;

[0015] Figure 2 is the sectional view structural schematic diagram of the present utility model;

[0016] Figure 3 is the split structural schematic diagram of the drying mechanism of the present utility model;

[0017] Figure 4 is the sectional view structural schematic diagram of the fixing mechanism of the present utility model.

[0018] Legend: 1. Device main body; 2. Unwinding roller; 3. Coating device; 4. Guide roller; 5. Extraction tank; 6. Oven; 7. Air suction device; 8. Connecting pipe; 9. Air suction hood; 10. Drying device; 11. Exhaust duct; 12. Mounting seat; 13. Fan; 14. Collection box; 15. Fixed block; 16. Housing; 17. Rotating rod; 18. Elliptical plate; 19. Moving plate; 20. Limiting plate; 21. Limiting groove; 22. First spring; 23. Square rod; 24. Knob; 25. Plug rod; 26. Slot; 27. Chute; 28. Slide block; 29. Second spring. Detailed implementation manners

[0019] Now, with reference to the accompanying drawings and preferred embodiments, the present utility model will be further described in detail. These drawings are all simplified schematic diagrams, only showing the basic structure of the present utility model in a schematic manner, so they only show the components related to the present utility model.

[0020] Refer to Figures 1 - 4 As shown, the present utility model provides a technical solution: an oil-based diaphragm coating device with a drying structure, including a device main body 1. One end of the top of the device main body 1 is provided with an unwinding roller 2. The top of the device main body 1 is provided with a coating device 3 on the right side of the unwinding roller 2. The top of the device main body 1 is provided with two guide rollers 4 on the right side of the coating device 3. The bottom of the device main body 1 is fixed with an extraction tank 5 between the two guide rollers 4. The other end of the top of the device main body 1 is provided with an oven 6. The top of the oven 6 is provided with an air suction device 7. One end of the air suction device 7 is fixedly connected with a connecting pipe 8 and penetrates through the inside of the oven 6. One end of the connecting pipe 8 inside the oven 6 is fixed with an air suction hood 9. The other end of the air suction device 7 is fixedly penetrated with an exhaust duct 11. Both ends on one side of the oven 6 are provided with drying devices 10. By feeding the diaphragm into the device from the unwinding roller 2, the oil-based slurry is respectively coated on both sides of the diaphragm by the coating device 3. The coated diaphragm enters the extraction tank 5, and the organic solvent is removed by the extraction liquid in the extraction tank 5. Then the extracted diaphragm enters the oven 6 for drying treatment. The drying devices 10 dry the surfaces on both sides of the diaphragm. At the same time, with the structure of the air suction device 7, the connecting pipe 8 and the air suction hood 9, the hot and humid air in the oven 6 can be extracted, promoting the drying effect and accelerating the flow of the hot air inside the oven 6, making the hot air more evenly distributed in the oven 6, so that the oil-based diaphragm is heated more evenly during the drying process, avoiding quality problems caused by local overheating or overcooling, and improving the yield and product quality of the coated diaphragm.

[0021] Refer to Figure 3As shown, in this embodiment: mounting seats 12 are fixed on both sides of the interior of the oven 6, a fan 13 is installed at one end of the mounting seats 12, and the mounting seats 12 are respectively located at the top and bottom of the diaphragm. By placing the mounting seats 12 and the fan 13 on the upper and lower sides of the diaphragm respectively, the moisture on the surfaces of both sides of the diaphragm can be blown off, thereby further improving the drying efficiency of the diaphragm.

[0022] Reference Figure 4 As shown, in this embodiment: a collecting box 14 is installed inside the device body 1, and a fixing block 15 is fixed on both sides of the collecting box 14. A shell 16 is fixed on both sides of the bottom of the device body 1. A rotating rod 17 is rotated through the shell 16, and an elliptical plate 18 is fixed on one end of the rotating rod 17 located inside the shell 16. A movable plate 19 is slidably connected to the inside of the shell 16, and a limiting plate 20 is fixed on one side of the movable plate 19. A limiting groove 21 used in conjunction with the limiting plate 20 is opened at one end of the fixing block 15. A first spring 22 is fixed on both sides of the inside of the shell 16, and the other end of the first spring 22 is fixed to the movable plate 19. A square rod 23 is slidably connected to the inside of the rotating rod 17, and a knob 24 is fixed on one end of the square rod 23. A plug rod 25 is fixed on one side, and a slot 26 for use with the plug rod 25 is provided on one side of the shell 16. By installing the collection box 14, the moisture dropped on the diaphragm can be collected, and the plug rod 25 is driven to disengage from the inside of the slot 26 by pulling the knob 24, and then the square rod 23 is turned to rotate, and the square groove provided inside the rotating rod 17 is used to make the square rod 23 drive the rotating rod 17 and the elliptical plate 18 to rotate together, so that the elliptical plate 18 no longer blocks the limiting plate 20. At this time, the rebound force of the first spring 22 can push the movable plate 19 to pull the limiting plate 20 out of the inside of the limiting groove 21, thereby releasing the fixation of the fixed block 15, facilitating the quick disassembly of the collection box 14, and thus facilitating the removal of the moisture collected inside the collection box 14.

[0023] Reference Figure 4 As shown, in this embodiment: a slide groove 27 is opened on both sides of the rotating rod 17, and a slider 28 is slidably connected inside the slide groove 27, and the other end of the slider 28 is fixed to the square rod 23. By setting the structure of the slide groove 27 and the slider 28, the movement trajectory of the square rod 23 can be restricted to prevent the user from using too much force when pulling the knob 24, causing the square rod 23 to escape from the inside of the rotating rod 17.

[0024] Reference Figure 4 As shown, in this embodiment: a second spring 29 is fixed inside the rotating rod 17, and the other end of the second spring 29 is fixed to the square rod 23. By setting the second spring 29, the position of the insertion rod 25 can be constrained, and in the process of fixing the knob 24, manpower can be saved.

[0025] Working principle: the user allows the diaphragm to enter the device from the unwinding roller 2, and uses the coating device 3 to coat the oily slurry on the surfaces of both sides of the diaphragm. The coated diaphragm enters the extraction tank 5, and the organic solvent is removed by the extract in the extraction tank 5. Then the extracted diaphragm enters the oven 6 for drying. The surfaces on both sides of the diaphragm are dried by the drying device 10. At the same time, the structure of the suction device 7, the connecting pipe 8 and the suction hood 9 can be used to extract the hot and humid air in the oven 6 to promote the drying effect, accelerate the flow of hot air inside the oven 6, and make the hot air more evenly distributed in the oven 6, so that the oily diaphragm is heated more evenly during the drying process, avoiding quality problems caused by local overheating or overcooling, and improving the yield rate and product quality of the coated diaphragm. By placing the mounting seat 12 and the fan 13 on the upper and lower sides of the diaphragm respectively, the moisture on the surfaces of both sides of the diaphragm can be blown off, further improving the drying efficiency of the diaphragm. By installing the collecting box 14, the The water dropped on the diaphragm is collected, and the insertion rod 25 is driven to disengage from the interior of the slot 26 by pulling the knob 24, and then the knob 24 is turned to drive the square rod 23 to rotate, and the square groove opened in the rotating rod 17 is used to make the square rod 23 drive the rotating rod 17 and the elliptical plate 18 to rotate together, so that the elliptical plate 18 no longer blocks the limiting plate 20. At this time, the resilience of the first spring 22 can push the movable plate 19 to pull the limiting plate 20 out of the interior of the limiting groove 21, release the fixation of the fixing block 15, and facilitate the rapid disassembly of the collecting box 14, thereby facilitating the removal of the water collected in the collecting box 14. By setting the structure of the sliding groove 27 and the sliding block 28, the moving trajectory of the square rod 23 can be restricted, so that the user is prevented from using too much force when pulling the knob 24, so that the square rod 23 is separated from the interior of the rotating rod 17. By setting the second spring 29, the position of the insertion rod 25 can be restrained, and in the process of fixing the knob 24, it can save manpower.

[0026] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. An oil-based diaphragm coating device with a drying structure, comprising a device main body (1), characterized in that: One end of the top of the device main body (1) is provided with an unwinding roller (2). The coating device (3) is installed on the top of the device main body (1) on the right side of the unwinding roller (2). Two guiding rollers (4) are installed on the top of the device main body (1) on the right side of the coating device (3). An extraction tank (5) is fixed between the two guiding rollers (4) at the bottom of the device main body (1). The other end of the top of the device main body (1) is provided with an oven (6). An air suction device (7) is installed on the top of the oven (6). One end of the air suction device (7) is fixedly connected to a connecting pipe (8) and penetrates through the interior of the oven (6). The end of the connecting pipe (8) inside the oven (6) is fixed with an air suction hood (9). The other end of the air suction device (7) is fixedly penetrated with an exhaust pipe (11). Drying devices (10) are installed at both ends on one side of the oven (6).

2. The oil-based diaphragm coating device with a drying structure according to claim 1, characterized in that: Mounting seats (12) are fixed on both sides inside the oven (6). A blower (13) is installed at one end of the mounting seat (12). The positions of the mounting seats (12) are respectively located at the top and bottom of the diaphragm.

3. The oil-based diaphragm coating device with a drying structure according to claim 1, wherein: A collection box (14) is installed inside the device main body (1). Fixing blocks (15) are fixed on both sides of the collection box (14). Shells (16) are fixed on both sides of the bottom of the device main body (1). A rotating rod (17) is rotatably penetrated through the interior of the shell (16). An elliptical plate (18) is fixed at one end of the rotating rod (17) inside the shell (16). A moving plate (19) is slidably connected inside the shell (16). A limiting plate (20) is fixed on one side of the moving plate (19). A limiting groove (21) which is matched with the limiting plate (20) is opened at one end of the fixing block (15).

4. An oil-based diaphragm coating device with a drying structure according to claim 3, characterized in that: First springs (22) are fixed on both sides inside the shell (16). The other ends of the first springs (22) are fixed to the moving plate (19).

5. The oil-based diaphragm coating device with a drying structure according to claim 3, wherein: A square rod (23) is slidably connected inside the rotating rod (17). A knob (24) is fixed at one end of the square rod (23). A plug rod (25) is fixed on one side of the knob (24). A slot (26) which is matched with the plug rod (25) is opened on one side of the shell (16).

6. The oil-based diaphragm coating device with a drying structure according to claim 3, characterized in that: Chute grooves (27) are opened on both sides inside the rotating rod (17). Sliders (28) are slidably connected inside the chute grooves (27). The other ends of the sliders (28) are fixed to the square rod (23).

7. The oil-based diaphragm coating device with a drying structure according to claim 3, wherein: A second spring (29) is fixed inside the rotating rod (17). The other end of the second spring (29) is fixed to the square rod (23).

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