Device for collecting magnetic foreign matters in lithium battery slurry

Abstract

The utility model belongs to the field of lithium battery preparation, and particularly relates to a device for collecting magnetic foreign matters in lithium battery slurry. Comprising a cup base, fixing mechanisms and a magnetic bar, a magnetic bar groove for the magnetic bar to pass through is formed in the side portion of the cup base, a cup groove for containing a beaker is formed in the top of the cup base, and the fixing mechanisms are installed on the periphery of the cup base and used for pressing the beaker. Through rotation of the telescopic claw and linkage arrangement of the telescopic rod and the spring, the fixing mechanism can stretch and retract up and down, and beakers with different diameters and heights are compatible. The device is simple in structure and convenient and fast to operate. By fixing the distance and the angle between the magnetic bar and the beaker, the magnetic substances in the beaker are attracted and collected by drawing the magnetic bar in a reciprocating mode, interference of manual operation factors is eliminated, and the whole magnetic substance collecting process is more standardized.

Description

Technical Field

[0001] This utility model belongs to the field of lithium battery manufacturing, and in particular relates to a device for collecting magnetic foreign objects in lithium battery slurry. Background Technology

[0002] Lithium-ion batteries are widely used due to their high energy density, low self-discharge rate, high operating voltage, and long cycle life. As a crucial component in lithium battery manufacturing, the slurry's properties must undergo rigorous quality inspection before it can be used in the next process. Among these, the control of magnetic materials in the slurry is particularly important, directly affecting the performance of the final battery product.

[0003] Currently, electromagnetic demagnetizing equipment for battery slurry generates a lot of heat, consumes a lot of energy, has low demagnetization efficiency, and is extremely difficult to clean. While magnetic rod collection devices for magnetic foreign matter are complex to set up, the magnetic rods themselves suffer from low collection efficiency. Therefore, to improve efficiency, production personnel often use a simplified method: when cleaning slurry mixed with magnetic materials, they simply hold a magnetic rod close to the bottom of the beaker and move it back and forth to attract the magnetic material. However, this method lacks specific requirements. First, different people hold the magnetic rod differently, and based on the magnetic field distribution of the magnet, the saturation of the attracted magnetic material varies. Second, the number of times the magnetic rod is moved back and forth and the distance between the rod and the bottom of the beaker are variables, leading to the loss of some magnetic material and inaccurate test data. The device designed in this invention solves the problem of the influence of different human operations on the test results, and is simple to operate with high magnetic attraction efficiency. Utility Model Content

[0004] The purpose of this invention is to provide a device for collecting magnetic foreign objects in lithium battery slurry, which solves the problem of human operation affecting test results and makes the process of collecting magnetic materials more standardized.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows: a device for collecting magnetic foreign matter in lithium battery slurry, comprising a cup holder, a fixing mechanism, and a magnetic rod. The side of the cup holder is provided with a magnetic rod groove for the magnetic rod to pass through, and the top of the cup holder is provided with a cup groove for placing a beaker. The fixing mechanism is installed around the cup holder to press the beaker firmly. This device fixes the relative positions of the magnetic rod and the beaker through the cup holder, attracting and collecting magnetic materials in the cup by reciprocatingly pulling the lower magnetic rod. This eliminates interference from human operation factors, making the operation process more standardized and the test data more stable and reliable.

[0006] Preferably, the cup holder has through holes at each of its four included corners, and the fixing mechanism is installed in each through hole. The fixing mechanism includes a telescopic hook, a rotating shaft, a telescopic rod, a spring, and a fastening screw. The upper part of the telescopic hook engages with the mouth of the beaker, and the bottom of the telescopic hook is hinged to the upper part of the telescopic rod via the rotating shaft. The lower part of the telescopic rod is fixed to the upper part of the spring, and the lower part of the spring is connected to the fastening screw, which is engaged with the through hole at the bottom of the cup holder. This device allows the telescopic hook to rotate via the rotating shaft, and the linkage between the telescopic rod and the spring enables vertical extension and retraction, accommodating beakers of different diameters and heights.

[0007] Preferably, the diameter of the upper part of the telescopic rod is larger than the diameter of the through hole, so that when the spring is pulled back, the upper part of the telescopic rod can be locked in the through hole and will not continue to descend.

[0008] Preferably, the upper part of the through hole is square, and the lower part is cylindrical. The square channel at the upper part of the through hole of this device can just accommodate the lower part of the telescopic rod and the spring.

[0009] Preferably, the fastening screw has a nut, the diameter of which is larger than the diameter of the through hole, and the nut is engaged with the outside of the through hole. The nut allows the fastening screw to be engaged with the through hole at the bottom of the cup holder.

[0010] Preferably, the spring and the fastening screw are connected together by a connecting sleeve. The upper part of the connecting sleeve has a retaining ring, and the spring is connected to the retaining ring. The connecting sleeve has internal threads, and the fastening screw is connected to the internal threads. Through the above component arrangement, the linkage between the telescopic rod and the spring is achieved.

[0011] Preferably, the telescopic rod has a square structure, and the upper diameter of the telescopic rod is larger than the lower diameter.

[0012] Preferably, the cup groove is wedge-shaped, which can accommodate beakers of different diameters.

[0013] Preferably, the magnetic field strength of the magnetic rod is 800-12000 Gs.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] This device features a simple structure and convenient operation, avoiding the complex structure and low collection efficiency of previous magnetic rod collection devices. It employs a rotatable telescopic hook in conjunction with a telescopic rod and spring, allowing the entire fixing mechanism to extend and retract vertically, accommodating beakers of different diameters. The magnetic material in the beaker is attracted and collected by reciprocating the pulling of the lower magnetic rod, making the entire magnetic material collection process more standardized. This eliminates the interference of human operation, resulting in more stable and reliable test data. Attached Figure Description

[0016] Figure 1 This is a perspective view of the entire utility model;

[0017] Figure 2 This is a cross-sectional view of the cup holder in this utility model;

[0018] Figure 3 This is a perspective view of the fixing mechanism in this utility model;

[0019] Figure 4 This is another cross-sectional view of the cup holder in this utility model.

[0020] In the diagram: 1. Cup holder; 11. Magnetic rod slot; 12. Cup slot; 13. Through hole; 2. Fixing structure; 21. Telescopic hook; 22. Rotating shaft; 23. Telescopic rod; 24. Spring; 25. Connecting sleeve; 251. Fixing ring; 26. Fastening screw; 27. Nut; 3. Magnetic rod. Detailed Implementation

[0021] To enable those skilled in the art to better understand the technical solution of this utility model, the specific implementation of this utility model will be described in detail below with reference to the accompanying drawings and preferred embodiments.

[0022] It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0023] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," "fixed connection," and "fixed connection" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. For those skilled in the art, the specific meaning of the above terms in this invention can be understood through specific circumstances. Without departing from the principle of this utility model, several improvements and modifications can be made, and these improvements and modifications should also be considered within the protection scope of this utility model.

[0024] like Figure 1 As shown, a device for collecting magnetic foreign matter in lithium battery slurry includes a cup holder 1, a fixing mechanism 2, and a magnetic rod 3. The cup holder 1 is used to place a beaker on top. The fixing mechanism 2 is installed around the cup holder 1 to press the beaker firmly against the cup holder. The magnetic rod 3 is used to attract magnetic substances in the slurry in the beaker. The magnetic field strength of the magnetic rod is 800-12000 Gs. This device fixes the relative position of the magnetic rod and the beaker with the cup holder, and attracts and collects magnetic substances in the cup by reciprocatingly pulling the magnetic rod. It replaces manual operation, is convenient and quick, and has high operability.

[0025] like Figure 2 As shown, specifically, in this design, the four included corners of the cup holder 1 are each provided with a through hole 13 extending vertically, for mounting the fixing mechanism 2 within the through hole 13. The side of the cup holder 1 is provided with a magnetic rod groove 11 for the magnetic rod 3 to pass through. The top of the cup holder 1 is provided with a cup groove 12 for placing a beaker. The upper part of the through hole 13 is square, and the lower part is cylindrical. The cup groove 12 is wedge-shaped to accommodate beakers of different diameters.

[0026] like Figure 3 As shown, specifically, in this solution, the fixing mechanism 2 includes a telescopic hook 21, a rotating shaft 22, a telescopic rod 23, a spring 24, a connecting sleeve 25, and a fastening screw 26. The upper part of the telescopic hook 21 engages with the mouth of the beaker. The bottom of the telescopic hook 21 is hinged to the upper part of the telescopic rod 23 via the rotating shaft 22. The lower part of the telescopic rod 23 is fixedly connected to the upper part of the spring 24. The lower part of the spring 24 is connected to the connecting sleeve 25 via a fixing ring 251. The connecting sleeve 25 has internal threads and is threadedly connected to the fastening screw. Through the cooperation of the above components, the linkage between the telescopic rod and the spring is achieved. In addition, the fastening screw also has a nut 27, and the diameter of the nut is larger than the diameter of the through hole so that the nut can be engaged on the outside of the through hole, that is, the fastening screw is engaged at the through hole at the bottom of the beaker. In this device, the telescopic rod has a square structure, and the upper diameter of the telescopic rod is larger than the lower diameter. The telescopic hook rotates via a rotating shaft, and the telescopic rod is linked to a spring to achieve vertical extension and retraction, making it compatible with beakers of different diameters and heights.

[0027] like Figure 4 As shown, specifically in this design, the fixing mechanism 2 is placed within the through holes at the four included corners of the cup holder 1. The diameter of the upper part of the telescopic rod is larger than the diameter of the through hole, and the square channel at the top of the through hole is just large enough to accommodate the lower part of the telescopic rod and the spring. When the spring pulls back, the upper part of the telescopic rod can be locked onto the through hole, preventing it from descending further.

[0028] It should be noted that this device collects magnetic substances from the slurry by fixing the distance and angle between the magnetic rod and the beaker, and by pulling the rod a specified number of times, relying on the magnetic force of the rod itself. This avoids the influence of human operation on the test results. At the same time, it standardizes the process of collecting magnetic substances, reduces direct contact between personnel and the beaker, and avoids safety hazards during the cleaning process.

Claims

1. A device for collecting magnetic foreign objects in lithium battery slurry, characterized by The device includes a cup holder, a fixing mechanism, and a magnetic rod. The side of the cup holder has a magnetic rod groove for the magnetic rod to pass through, and the top of the cup holder has a cup groove for placing a beaker. The fixing mechanism is installed around the cup holder to press the beaker firmly.

2. A device for collecting magnetic foreign matter in lithium battery slurry according to claim 1, characterized in that The cup holder has four through holes at its four corners. The fixing mechanism is installed in the through holes. The fixing mechanism includes a telescopic hook, a rotating shaft, a telescopic rod, a spring, and a fastening screw. The upper part of the telescopic hook engages with the mouth of the beaker. The bottom of the telescopic hook is hinged to the upper part of the telescopic rod via the rotating shaft. The lower part of the telescopic rod is fixed to the upper part of the spring. The lower part of the spring is connected to the fastening screw, which is engaged with the through hole at the bottom of the cup holder.

3. A device for collecting magnetic foreign matter in lithium battery slurry according to claim 2, characterized in that The diameter of the upper part of the telescopic rod is larger than the diameter of the through hole.

4. A device for collecting magnetic foreign matter in lithium battery slurry according to claim 3, characterized in that The upper part of the through hole is square, and the lower part is cylindrical.

5. A device for collecting magnetic foreign matter in lithium battery slurry according to claim 2, characterized in that The fastening screw has a nut, the diameter of which is larger than the diameter of the through hole, and the nut is engaged with the outside of the through hole.

6. A device for collecting magnetic foreign matter in lithium battery slurry according to claim 5, characterized in that The spring and the fastening screw are connected together by a connecting sleeve. The upper part of the connecting sleeve has a fixing ring, the spring is connected to the fixing ring, the connecting sleeve has an internal thread, and the fastening screw is connected to the internal thread.

7. A device for collecting magnetic foreign matter in lithium battery slurry according to any one of claims 2 to 6, characterized in that The telescopic rod has a square structure, and the upper diameter of the telescopic rod is larger than the lower diameter.

8. The device for collecting magnetic foreign matter in lithium battery slurry according to claim 1, characterized in that The cup groove is wedge-shaped and is used to hold beakers of different diameters.

9. The device for collecting magnetic foreign matter in lithium battery slurry according to claim 1, characterized by: The magnetic field strength of the magnetic rod is 800-12000 Gs.

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