Lithium battery additive magnetic impurity filtering assembly and demagnetizing equipment

Abstract

The utility model discloses a lithium battery additive magnetic impurity filtering assembly and demagnetizing equipment, and belongs to the technical field of lithium battery additive processing. According to the equipment, a conveying system composed of a driving roller and a magnetic roller is supported through a rack, a conveying belt is in transmission connection with the two roller bodies, and the magnetic roller adsorbs ferromagnetic impurities in raw materials. In order to solve the technical problem that the impurity removal effect is affected by raw material accumulation, sliding push rods are arranged on the two sides of the rack and do reciprocating motion through a magnetic roller end driving mechanism. According to the mechanism, an eccentric driving disc drives a push rod through a connecting rod, the push rod pushes a double-layer knocking assembly arranged on a rotating rod, after an upper-layer knocking frame makes contact with the push rod through a shifting rod, a second torsional spring is used for resetting to impact the surface of a conveying belt, and a raw material layer is loosened to improve the magnetic attraction effect; and the lower knocking frame synchronously acts to promote the impurities to fall off. The flattening roller and the driving roller synchronously run through belt transmission, and raw materials on the surface of the conveying belt are flattened. According to the equipment, the dispersity of raw materials and the impurity separation efficiency are optimized through the cooperation of mechanical impact and magnetic attraction.

Description

Technical Field

[0001] This utility model relates to the field of lithium battery additive processing technology, and in particular to a magnetic impurity filtering component and demagnetizing equipment for lithium battery additives. Background Technology

[0002] Lithium-ion battery additives are key functional components in the electrolyte, typically accounting for no more than 5%, but they can significantly improve battery performance, such as safety, cycle life, and rate performance. During the production of lithium-ion battery additives, magnetic impurities (such as iron and nickel particles) can affect battery performance and even pose a short-circuit risk. To ensure product purity, raw materials need to be filtered to remove impurities. However, in existing devices, raw materials fall onto the conveyor belt during transport, and when the materials are densely packed, the processing effect is affected. Therefore, a magnetic impurity filtering component for lithium-ion battery additives is proposed. Utility Model Content

[0003] The purpose of this invention is to address the shortcomings of existing devices where raw materials fall onto the conveyor belt during material transport, and the dense accumulation of raw materials affects the processing effect. Therefore, this invention proposes a magnetic impurity filtering component and demagnetizing device for lithium battery additives.

[0004] To achieve the above objectives, the present invention adopts the following technical solution:

[0005] A magnetic impurity filtering assembly for lithium battery additives includes a frame, with a drive roller and a magnetic roller rotatably mounted between the two sides of the frame, and the drive roller and the magnetic roller being connected by a conveyor belt; sliders are slidably mounted on both sides of the frame, and a push rod spanning the frame is fixedly connected between two sliders; two impact mechanisms are symmetrically arranged between the inner walls of the two sides of the frame.

[0006] The impact mechanism includes:

[0007] A rotating rod is rotatably connected between the two sides of the frame, and a second torsion spring is fixedly installed between the rotating rod and the frame;

[0008] Multiple impact components are fixedly arranged along the circumference of the rotating rod. Each impact component includes a striking frame, a mounting shaft, a lever, and a positioning plate. The striking frame is fixed to the circumference of the rotating rod, and one side of it is rotatably connected to the lever through the mounting shaft. A first torsion spring is provided between the mounting shaft and the striking frame. The positioning plate is fixed to one side of the striking frame to limit the rotation angle of the lever.

[0009] And two drive mechanisms, respectively located at both ends of the magnetic roller, are used to drive the slider to move back and forth;

[0010] The drive mechanism drives the push rod to push the lever by rotating the magnetic roller, so that the striking frame moves away from the conveyor belt and is reset by the second torsion spring to impact the conveyor belt, thereby loosening the raw materials above and promoting the falling off of impurities below.

[0011] As a further improvement to the above technical solution:

[0012] The driving mechanism includes a driving disk, a driving shaft, and a driving rod; the driving disk is coaxially fixed to one end of the magnetic roller, and the driving shaft is fixed at an eccentric position thereon; the driving shaft and the push rod are hinged together by the driving rod.

[0013] A servo motor is fixedly installed on one side of the frame, and the output shaft of the servo motor is coaxially fixed with the drive roller. A feed hopper is fixedly connected to the top of the frame. Two symmetrical guide plates are installed at an angle at the bottom of the frame. A flattening roller is rotatably installed on the top of the frame. The flattening roller is connected to the drive roller by a belt and a pulley.

[0014] Scrapers are fixedly installed between the inner walls of both sides of the frame, and the scrapers are in contact with the surface of the conveyor belt.

[0015] A demagnetizing device includes the aforementioned lithium battery additive magnetic impurity filtering component.

[0016] As a further improvement to the above technical solution:

[0017] The axis of the flattening roller is parallel to the drive roller, and its surface is spaced at a preset distance from the upper surface of the conveyor belt. The inclination angle of the guide plate is 30°-60°, and the bottom ends of the two guide plates face the impurity collection area and the raw material outlet, respectively.

[0018] In this application, during use, the servo motor is started, driving the drive roller, conveyor belt, and magnetic roller to rotate. Raw materials are fed into the feed hopper, dispersed, and then fall onto the conveyor belt. Iron impurities are attracted by the magnetic roller and adhere to its surroundings. Normal raw materials fall onto one guide plate, while iron impurities, moving away from the magnetic roller, fall onto the other guide plate, thus separating the impurities. Simultaneously, the drive roller rotates, driving the flattening roller via the belt pulley. The flattening roller flattens the raw materials, improving the adsorption effect. The magnetic roller's rotation also drives the drive disc to rotate, driving... The disc drives the eccentrically positioned drive shaft to rotate, which in turn drives the slider to move back and forth via the drive rod. The slider drives the push rod to move, and the push rod first pushes the lever. The lever does not rotate under the action of the positioning plate, thus causing one end of the striking frame to move away from the conveyor belt. After the lever and the push rod disengage, the striking frame returns to its original position under the action of the second torsion spring, thereby impacting the conveyor belt. The impact force can loosen the raw materials on the conveyor belt more, preventing them from being flattened by the flattening roller, and further improving the adsorption effect. Meanwhile, the striking frame below can facilitate the falling of impurities on the conveyor belt, improving the material discharge effect and preventing them from adhering to the conveyor belt.

[0019] Beneficial effects: In this utility model, the magnetic impurity filtering component and demagnetizing device for lithium battery additives, through the setting of upper and lower two-layer striking frames, can make the raw materials above the conveyor belt more loose by impact force, so as to avoid being flattened by the flattening roller and improve the adsorption effect. The lower striking frame can facilitate the falling of impurities on the conveyor belt, improve the feeding effect and prevent them from adhering to the conveyor belt.

[0020] In this utility model, the magnetic impurity filtering component and demagnetizing device for lithium battery additives, through the setting of the flattening roller, allows the raw materials to be spread out by the flattening roller after falling, thereby avoiding accumulation and facilitating magnetic roller adsorption.

[0021] In this invention, the impact force can loosen the raw materials above the conveyor belt, preventing them from being flattened by the flattening roller and improving the adsorption effect. The striking frame below can facilitate the falling of impurities on the conveyor belt, improving the feeding effect and preventing them from adhering to the conveyor belt. At the same time, after the raw materials fall, they can be spread out by the flattening roller, thus preventing them from piling up and facilitating the magnetic roller to adsorb them. Attached Figure Description

[0022] Figure 1 This is a three-dimensional structural schematic diagram of a magnetic impurity filtering component and demagnetizing device for lithium battery additives proposed in this utility model.

[0023] Figure 2 This is a cross-sectional structural schematic diagram of a magnetic impurity filtering component and demagnetizing device for lithium battery additives proposed in this utility model.

[0024] Figure 3 This utility model proposes a magnetic impurity filtering component and demagnetizing device for lithium battery additives. Figure 2 A magnified structural diagram of point A in the middle.

[0025] In the diagram: 1. Frame; 2. Top cover; 3. Feed hopper; 4. Guide plate; 5. Flattening roller; 6. Drive roller; 7. Magnetic roller; 8. Conveyor belt; 9. Servo motor; 10. Scraper; 11. Slider; 12. Push rod; 13. Drive shaft; 14. Drive rod; 15. Rotating rod; 16. Striking frame; 17. Mounting shaft; 18. Lever; 19. First torsion spring; 20. Positioning plate; 21. Second torsion spring; 22. Drive disc. Detailed Implementation

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0027] Example 1, referring to Figures 1-3 A magnetic impurity filtering assembly includes: a frame 1, a drive roller 6 and a magnetic roller 7 rotatably connected between the two sides of the frame 1, a conveyor belt 8 drivingly connected between the drive roller 6 and the magnetic roller 7, the conveyor belt 8 being used to transport raw materials, and iron impurities are attracted by the magnetic roller 7 and thus adhere to the vicinity of the magnetic roller 7, but as the conveyor belt 8 rotates, they move away from the magnetic roller 7 and fall off; sliders 11 are slidably connected to both sides of the frame 1, and a through push rod 12 is fixedly connected between the two sliders 11; two impact mechanisms for impacting the conveyor belt 8 are provided between the inner walls of both sides of the frame 1, and the two impact mechanisms are symmetrically arranged.

[0028] The impact mechanism includes a rotating rod 15, which is rotatably connected between the two sides of the frame 1. A second torsion spring 21 is fixedly connected between the rotating rod 15 and the frame 1. Multiple impact components are mounted on the circumference of the rotating rod 15. Each impact component includes a striking frame 16, which is fixed to the circumference of the rotating rod 15. A through mounting shaft 17 is rotatably connected to one side of the striking frame 16. A first torsion spring 19 is fixedly connected between the mounting shaft 17 and the striking frame 16. A lever 18 is fixedly connected to the circumference of the mounting shaft 17. A positioning plate 20 is fixedly connected to one side of the striking frame 16 to limit the rotation angle of the lever 18. The slider 11 drives the push rod 12 to move. The push rod 12 first pushes the lever 18. The lever 18 will not rotate under the action of the positioning plate 20, which makes one end of the striking frame 16 move away from the conveyor belt 8. After the lever 18 and the push rod 12 are no longer in contact, the striking frame 16 is reset under the action of the second torsion spring 21, which then impacts the conveyor belt 8, making the raw materials above more loose and the magnetic impurities below fall down.

[0029] Two drive mechanisms are respectively set at both ends of the magnetic roller 7 to drive the slider 11 to move.

[0030] In this utility model, the driving mechanism includes a driving disk 22, which is fixed to one end of the magnetic roller 7. An eccentrically set driving shaft 13 is fixedly connected to one side of the driving disk 22. A driving rod 14 is rotatably connected between the driving shaft 13 and the push rod 12. When the magnetic roller 7 rotates, it also drives the driving disk 22 to rotate. The driving disk 22 drives the eccentrically set driving shaft 13 to rotate, and then drives the slider 11 to move back and forth through the driving rod 14.

[0031] In particular, a servo motor 9 is fixedly connected to one side of the frame 1. One end of the output shaft of the servo motor 9 is fixed to the drive roller 6. When the servo motor 9 is started, the servo motor 9 drives the drive roller 6, the conveyor belt 8 and the magnetic roller 7 to rotate.

[0032] This application can be used in the field of lithium battery additive processing, or in other fields applicable to this application.

[0033] Example 2, Reference Figures 1-3 Based on Example 1, an improved magnetic impurity filtering component for lithium battery additives is applied to the field of lithium battery additive processing.

[0034] In this invention, a feed hopper 3 is fixedly connected to the top of the frame 1, and the feed hopper 3 is used for the initial dispersion of raw materials.

[0035] In particular, the bottom of the frame 1 is fixedly connected to two symmetrically arranged guide plates 4. The bottom of the guide plates 4 is inclined and the guide plates 4 are used to guide the impurities after sorting.

[0036] It should be noted that a top cover 2 is fixedly connected to the top of the frame 1. The top cover 2 is used to cover the area above the conveyor belt 8 to improve the cleanliness level.

[0037] This utility model also proposes a demagnetizing device, including a magnetic impurity filtering component for lithium battery additives, and a flattening roller 5. The flattening roller 5 is rotatably connected to the top of the frame 1. The flattening roller 5 and the drive roller 6 are connected by a belt and a pulley. While the drive roller 6 rotates, the flattening roller 5 is also driven to rotate by the belt and pulley. The flattening roller 5 flattens the raw material and improves the adsorption effect.

[0038] In particular, a scraper 10 is fixedly connected between the inner walls of both sides of the frame 1. The scraper 10 is in contact with the conveyor belt 8 and is used to scrape off impurities attached to the conveyor belt 8.

[0039] However, as is well known to those skilled in the art, the working principles and wiring methods of the magnetic roller 7 and the servo motor 9 are commonplace and are all conventional methods or common knowledge. They will not be described in detail here. Those skilled in the art can make any selections according to their needs or convenience.

[0040] The accompanying drawings in this application are for illustrative purposes only. The dimensions and shapes of the components shown are not actual limitations but are merely schematic representations. In actual implementation, the components can be reasonably configured and adjusted according to specific needs and actual conditions.

[0041] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A magnetic impurity filtering assembly for lithium battery additives, comprising a frame (1), wherein a drive roller (6) and a magnetic roller (7) are rotatably mounted between two sides of the frame (1), and the drive roller (6) and the magnetic roller (7) are connected by a conveyor belt (8); sliders (11) are slidably mounted on both sides of the frame (1), and a push rod (12) spanning the frame (1) is fixedly connected between two sliders (11). Two impact mechanisms are symmetrically arranged between the inner walls of the two sides of the frame (1); The impact mechanism includes: A rotating rod (15) is rotatably connected between the two sides of the frame (1), and a second torsion spring (21) is fixedly installed between the rotating rod (15) and the frame (1); Multiple impact components are fixedly arranged along the circumference of the rotating rod (15). Each impact component includes a striking frame (16), a mounting shaft (17), a lever (18), and a positioning plate (20). The striking frame (16) is fixed to the circumference of the rotating rod (15), and one side of it is rotatably connected to the lever (18) through the mounting shaft (17). A first torsion spring (19) is provided between the mounting shaft (17) and the striking frame (16). The positioning plate (20) is fixed to one side of the striking frame (16) to limit the rotation angle of the lever (18). And two drive mechanisms, respectively located at both ends of the magnetic roller (7), are used to drive the slider (11) to move back and forth; The drive mechanism drives the push rod (12) to push the lever (18) through the rotation of the magnetic roller (7), so that the striking frame (16) moves away from the conveyor belt (8) and then resets to impact the conveyor belt (8) through the second torsion spring (21) to loosen the raw materials above and promote the falling off of impurities below.

2. The filter assembly of claim 1, wherein, The driving mechanism includes a driving disk (22), a driving shaft (13) and a driving rod (14); the driving disk (22) is coaxially fixed to one end of the magnetic roller (7), and the driving shaft (13) is fixed at an eccentric position. The driving shaft (13) and the push rod (12) are hinged together by the driving rod (14).

3. The filter assembly of claim 1 or 2, wherein, A servo motor (9) is fixedly installed on one side of the frame (1), and the output shaft of the servo motor (9) is fixed coaxially with the drive roller (6).

4. The filter assembly of claim 3, wherein, The top of the frame (1) is fixedly connected to a feed hopper (3), and the bottom of the frame (1) is inclined with two symmetrical guide plates (4).

5. The filter assembly of claim 4, wherein, A flattening roller (5) is rotatably mounted on the top of the frame (1), and the flattening roller (5) is connected to the drive roller (6) by a belt and a pulley.

6. The filter assembly of claim 5, wherein, A scraper (10) is fixedly installed between the inner walls of both sides of the frame (1), and the scraper (10) is in contact with the surface of the conveyor belt (8).

7. A magnetic removal device, characterized by It includes the lithium battery additive magnetic impurity filtering component as described in claim 5.

8. The magnetic removal apparatus of claim 7, wherein, The axis of the flattening roller (5) is parallel to the drive roller (6), and its surface is spaced at a preset distance from the upper surface of the conveyor belt (8).

9. The magnetic removal apparatus of claim 7, wherein, The inclination angle of the guide plate (4) is 30°-60°, and the bottom ends of the two guide plates (4) face the impurity collection area and the raw material outlet, respectively.

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