A novel dust-proof feeding device for lithium battery diaphragm and its use method

Abstract

The present invention relates to a novel dust-proof feeding device for lithium battery diaphragm and a method of using the device, which includes a cutter, a material box, a transmission belt, a transmission roller, a hydraulic table, a hydraulic support, a hydraulic cylinder, a vehicle body, a sliding device, a material outlet, a material delivery pipe, a vacuum pump, a handle, and a program control device. When the hydraulic table is lowered to the lowest point, a material bag is placed on the hydraulic table, and as the transmission roller rotates and the hydraulic support rises, the material bag enters a predetermined position; as the transmission belt rotates in the reverse direction with the transmission roller, the material bag enters a feeding position, the material box is covered, and the material bag is cut with a cutter; the powder is sucked into a barrel under vacuum negative pressure. The present invention is easy to operate, enhances feeding efficiency, reduces dust, and facilitates the control of metal foreign matter.

Description

Technical Field

[0001] The invention relates to a novel dust-proof feeding device for a lithium battery diaphragm and a use method thereof. Background Art

[0002] In the era of energy conservation and environmental protection, lithium batteries have become the mainstream of power battery development. They have the advantages of high specific energy, wide operating temperature range, and stable discharge. However, there are still various safety hazards in the use process, which restricts their development. Safety is a factor that must be considered for batteries, among which the performance of the diaphragm is an important indicator for lithium-ion batteries to ensure safety. Existing lithium batteries are mainly composed of positive electrodes, negative electrodes, electrolytes and diaphragms. The main function of the diaphragm is to separate the positive and negative electrodes to prevent the positive and negative electrodes from directly contacting each other and causing a short circuit, prevent electrons from passing through, and allow ions to pass through; the quality of its performance determines the interface structure and internal resistance of the battery, which in turn affects the capacity, cyclicity, charge and discharge current density and other key characteristics of the lithium battery. Therefore, the performance of the separator plays an important role in improving the overall performance of the battery.

[0003] The quality of the diaphragm coating slurry directly determines the quality of the diaphragm. The existing dust-proof feeding of lithium battery diaphragm coating ingredients is mostly done manually or with a vacuum loading bin. At present, the efficiency of manual feeding is low, and dust has fallen into the feeding room, polluting the environment; the vacuum loading bin has high costs, the conveying system is easily blocked, the maintenance cost is high, and the cycle is long, which affects the overall work efficiency. In addition, there are no measures to prevent metal wear, resulting in metal foreign matter entering the slurry, increasing the safety risks of diaphragm coating and lithium batteries. Summary of the invention

[0004] The purpose of the present invention is to provide a novel dust-proof feeding device for lithium battery diaphragms and a method for using the same, so as to solve the problems of low efficiency of manual feeding and metal foreign matter entering powder in the prior art.

[0005] In order to solve the above technical problems, a new type of dust-proof feeding device for lithium battery diaphragm and its use method are provided, which are characterized by comprising a cutter, a material box, a transmission belt, a transmission roller, a hydraulic table, a hydraulic support, a hydraulic cylinder, a vehicle body, a sliding device, a discharge port, a feeding pipe, a vacuum pump, a handle, and a program control device. The cutter is placed at the cutting edge of the material box, the material box is placed on the transmission belt, the lower part of the transmission belt is a rotating roller, the lower part of the rotating roller is a hydraulic table, the lower part of the hydraulic table is a hydraulic support, the lower part of the hydraulic support is a hydraulic cylinder, the hydraulic cylinder is fixed to the vehicle body, a discharge port is provided on one side of the vehicle body, the discharge port is connected to the feeding pipe, the feeding pipe is connected to the vacuum pump, a handle is provided on the other side of the vehicle body, a program control device is provided at the lower end of the handle, and a sliding device is provided at the lower end of the vehicle body.

[0006] The upper end of the cutter is provided with a handle which is cylindrical, and the lower end is a ceramic blade which is rectangular and has blades on both sides.

[0007] The material box is made of polyester compound, and a cutting edge is arranged at the upper end. The cutting edge is rectangular and parallel to the driving roller, and one of the side ends has a rectangular opening parallel to the discharge port.

[0008] The transmission belt may be interlocked with the transmission roller and rotate along with the rotation of the transmission roller.

[0009] The transmission roller can rotate forward and backward, and the surface of the roller is coated with Teflon or tungsten carbide.

[0010] When the hydraulic platform is at the maximum height, the vertical distance between the transmission roller and the transmission belt is 1-10 mm.

[0011] The discharge port is plated with Teflon or tungsten carbide, and is rectangular, with the upper end being lower than the opening height of the side end of the material box.

[0012] The discharge port is provided with a filter screen made of magnetic material.

[0013] The feed pipe is made of a transparent polyester compound material and is softly connected to the discharge port.

[0014] The sliding device is a roller, a crawler transmission mechanism or a guide rail.

[0015] The program control device comprises a feed button, a hydraulic table lifting button, a transmission roller reversing button, an interlocking button, a feeding button, a conveying button, a display screen, and a variable frequency motor.

[0016] The hydraulic platform, hydraulic support, hydraulic cylinder, vehicle body, sliding device, material conveying pipe, vacuum pump, handle and program control device are all made of stainless steel.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] 1. When the hydraulic platform is at the lowest point, place the material bag on the hydraulic platform. As the transmission roller rotates and the hydraulic support rises, the material bag enters the predetermined position. As the transmission belt rotates in the opposite direction of the transmission roller, the material bag enters the feeding position, covers the material box, and cuts the material bag with a cutter. The powder is sucked into the material barrel under vacuum negative pressure. It is easy to operate, enhances feeding efficiency, reduces dust, and facilitates observation.

[0019] 2. Closed feeding to prevent dust from falling into the feeding room and polluting the environment; simple structure, low maintenance cost and short cycle; specific measures to prevent metal wear, reduce the entry of metal foreign matter into the slurry, and increase the safety risks of diaphragm coating and lithium batteries. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the feeding structure of the dust-proof feeding device for the lithium battery diaphragm in the present invention.

[0021] Figure 2 yes Figure 1 Schematic diagram of the overall structure of the dust-proof feeding device.

[0022] The numbers in the figure are: 10 - discharge port; 11 - feed pipe; 12 - vacuum pump.

[0023] Figure 3 yes Figure 1 Schematic diagram of the three-dimensional structure of the hydraulic feeding of the dust-proof feeding device.

[0024] Figure 4 Yes Yes Figure 1 Schematic diagram of the structure of the material box and cutter of the dust-proof feeding device.

[0025] The numbers in the figure are: 1-cutter; 2-material box; 3-transmission belt; 4-transmission roller; 5-hydraulic table; 6-hydraulic support; 7-hydraulic cylinder; 8-car body; 9-sliding device; 13-handle; 14-program control device. DETAILED DESCRIPTION

[0026] In order to make the purpose, technical solution and advantages of the invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0027] like Figure 1 and Figure 2 A novel dust-proof feeding device for lithium battery diaphragm shown in the figure includes a cutter 1, a material box 2, a transmission belt 3, a transmission roller 4, a hydraulic platform 5, a hydraulic support 6, a hydraulic cylinder 7, a vehicle body 8, a sliding device 9, a discharge port 10, a feed pipe 11, a vacuum pump 12, a handle 13, and a program control device 14. The cutter 1 is placed at the cutting edge of the material box 2 for cutting material bags. The material box 2 is placed on the transmission belt 3 to ensure that the material bags are cut in a closed environment to prevent powder from falling into the indoor environment during the feeding process.

[0028] Below the transmission belt 3 is a transmission roller 4. During the feeding process, the transmission belt 3 and the transmission roller 4 can interlock and rotate under the action of the interlocking transmission device. The transmission belt 3 rotates with the reverse rotation of the transmission roller 4, thereby conveying the material bag to a predetermined position. A hydraulic support 6 and a hydraulic cylinder 7 are provided below the hydraulic platform 5. The hydraulic cylinder 7 is fixed to the vehicle body 8. The hydraulic cylinder 7 can provide sufficient support force. At the same time, under normal working conditions, the hydraulic support 7 can be raised and lowered.

[0029] A discharge port 10 is provided at one side end of the vehicle body 8, and a filter screen made of magnetic material is provided at the discharge port 10, which can eliminate magnetic foreign matter in the powder and ensure the qualified rate of the slurry.

[0030] The discharge port 10 is flexibly connected to the feed pipe 11, and the feed pipe 11 is flexibly connected to the vacuum pump 12 to ensure smooth transportation of the slurry, reduce friction between the powder and the feed pipe 11 and the pipe interface, and prevent non-metallic foreign matter from entering the powder. The feed pipe 11 is made of a transparent polyester compound material, which can facilitate observation of the powder transportation status.

[0031] A handle 13 is provided at the other side end of the vehicle body 8, and a program control device 14 is provided at the lower end of the handle 13. The program control device 14 includes a feed button, a hydraulic platform 5 lifting button, a transmission roller 4 reversing button, an interlocking button, a feeding button, a feeding button, a frequency conversion motor, and a display screen. The display screen displays the weighing weight of the hydraulic platform 5, the rotation speed of the transmission roller 4, and the vacuum negative pressure value.

[0032] A sliding device 9 is provided at the lower end of the vehicle body 8, and the sliding device 9 is a roller, a crawler transmission mechanism or a guide rail. The transmission roller 4 and the discharge port 10 are plated with Teflon or tungsten carbide on the surface. When the hydraulic platform 5 is at the maximum height, the vertical distance between the transmission roller 4 above it and the transmission belt 3 is 1-10mm, ensuring that the material bag enters the transmission belt 3 smoothly.

[0033] A novel lithium battery diaphragm dust-proof feeding device and a method of use, the specific steps are as follows:

[0034] 1) By turning on the hydraulic table lifting button of the program control device 14, the hydraulic table 5 is lowered to the lowest point, and the material bag is placed on the hydraulic table 5;

[0035] 2) Turn on the feed button of the program control device 14, and the material bag is transferred to the other end of the hydraulic table 5 along the transmission roller 4;

[0036] 3) Turn on the lifting button of the hydraulic platform 5 of the program control device 14, the material bag rises with the hydraulic support 6, the hydraulic platform 5 reaches the maximum height and enters the predetermined "feeding" position;

[0037] 4) Turn on the interlock button of the program control device 14, and the transmission roller 4 and the transmission belt 3 are interlocked;

[0038] 5) Turn on the reverse button of the transmission roller 4 of the program control device 14. As the transmission roller 4 rotates in the opposite direction, the material bag enters the predetermined "feeding" position through the transmission belt 3;

[0039] 6) Turn off the reverse button of the transmission roller 4, cover the material box 2, and use the cutter 1 to fully cut the material bag;

[0040] 7) Turn on the feeding button of the program control device 14, and the powder is sucked into the material barrel under negative pressure through the vacuum adsorption of the vacuum pump 12. After the powder is transported, turn off the feeding button, open the material box 2, take out the material bag, and complete the feeding process.

[0041] The above is an explanation of the novel lithium battery diaphragm dust-proof feeding device and the method of use of the present invention, which is used to help understand the present invention. However, the implementation mode of the present invention is not limited to the above-mentioned embodiments. Any changes, modifications, substitutions, combinations, and simplifications made without departing from the principles of the present invention should be equivalent replacement methods and are included in the protection scope of the present invention.

Claims

1. A new type of dust-proof feeding device for lithium battery diaphragm, characterized in that: The invention comprises a cutter (1), a material box (2), a transmission belt (3), a transmission roller (4), a hydraulic platform (5), a hydraulic support (6), a hydraulic cylinder (7), a vehicle body (8), a sliding device (9), a material outlet (10), a material conveying pipe (11), a vacuum pump (12), a handle (13), and a program control device (14). The cutter (1) is placed on the cutting edge of the material box (2), the material box (2) is placed on the transmission belt (3), the lower part of the transmission belt (3) is a rotating roller (4), and the lower part of the rotating roller (4) is a hydraulic platform (5). , a hydraulic support (6) is disposed below the hydraulic platform (5), a hydraulic cylinder (7) is disposed below the hydraulic support (6), the hydraulic cylinder (7) is fixed to a vehicle body (8), a discharge port (10) is disposed on one side of the vehicle body (8), the discharge port (10) is connected to a feed pipe (11), the feed pipe (11) is connected to a vacuum pump (12), a handle (13) is disposed on the other side of the vehicle body (8), a program control device (14) is disposed at the lower end of the handle (13), and a sliding device (9) is disposed at the lower end of the vehicle body (8).

2. A novel dust-proof feeding device for lithium battery diaphragm according to claim 1, characterized in that: The cutter (1) has a handle at the upper end, which is cylindrical, and a ceramic blade at the lower end, which is rectangular and has sharp edges on both sides.

3. A novel dust-proof feeding device for lithium battery diaphragm according to claim 1, characterized in that: The material box (2) is made of a polyester compound, and is provided with a cutting edge at the top, the cutting edge being rectangular and parallel to the driving roller (4), and one of the side ends having a rectangular opening parallel to the material outlet (10).

4. A novel dust-proof feeding device for lithium battery diaphragm according to claim 1, characterized in that: The transmission belt (3) can be interlocked with the transmission roller (4) and rotate along with the rotation of the transmission roller (4).

5. A novel dust-proof feeding device for lithium battery diaphragm and a method of use according to claim 4, characterized in that: The transmission roller (4) can rotate in forward and reverse directions, and the surface of the roller is coated with Teflon or tungsten carbide.

6. A novel dust-proof feeding device for lithium battery diaphragm according to claim 1, characterized in that: When the hydraulic platform (5) is at its maximum height, the vertical distance between the transmission roller (4) and the transmission belt (3) is 1-10 mm.

7. A novel dust-proof feeding device for lithium battery diaphragm according to claim 1, characterized in that: The discharge port (10) is plated with Teflon or tungsten carbide, and is rectangular, with the height of the upper end being lower than the height of the side opening of the material box (2).

8. A novel dust-proof feeding device for lithium battery diaphragm according to claim 7, characterized in that: The discharge port (10) has a filter screen made of magnetic material.

9. A novel dust-proof feeding device for lithium battery diaphragm according to claim 1, characterized in that: The feed pipe (11) is made of a transparent polyester compound material and is softly connected to the discharge port (10).

10. A novel dust-proof feeding device for lithium battery diaphragm according to claim 1, characterized in that: The sliding device (9) is a roller, a crawler transmission mechanism or a guide rail.

11. A novel dust-proof feeding device for lithium battery diaphragm according to claim 1, characterized in that: The program control device (14) comprises a feed button, a hydraulic table (5) lifting button, a transmission roller (4) reversing button, an interlocking button, a feeding button, a material delivery button, a display screen, and a variable frequency motor.

12. A novel dust-proof feeding device for lithium battery diaphragm according to claim 1, characterized in that: The hydraulic platform (5), hydraulic support (6), hydraulic cylinder (7), vehicle body (8), sliding device (9), material conveying pipe (11), vacuum pump (12), handle (13), and program control device (14) are all made of stainless steel.

13. The method for using the novel dust-proof feeding device for lithium battery diaphragm according to claim 1 is characterized in that: Step 1: When the hydraulic platform (5) is at the lowest point, place the material bag on the hydraulic platform (5); Step 2: With the rotation of the transmission roller (4) and the rise of the hydraulic support (6), the material bag enters the predetermined position; Step 3: The transmission belt (3) rotates in the reverse direction along with the transmission roller (4), and the material bag enters the feeding position; Step 4: Cover the material box (2) and cut the material bag with a cutter; Step 5: The powder is sucked into the barrel under vacuum negative pressure, completing the feeding process.

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