Segmented scraping roller type lithium battery negative electrode material demagnetizing mechanism

Abstract

The invention discloses a segmented scraping roller type lithium battery negative electrode material demagnetizing mechanism which comprises a demagnetizing box body, a feeding hopper, a positioning frame, a magnetic roller, a scraping roller assembly, a power mechanism and a partition plate, the partition plate is used for dividing the lower portion of the interior of the demagnetizing box into the waste discharging cavity distributed front and back and the discharging cavity in the middle, in this way, negative electrode raw materials fed through the feeding hopper are adsorbed through the front sections and the rear sections of the multiple magnetic rollers, the multiple magnetic rollers are rotationally driven through the power mechanism, and uniform magnetism adsorption is achieved; when waste residues adsorbed on the magnetic rollers need to be cleaned, a driving motor drives a front-side scraping plate and a rear-side scraping plate to move relatively, and the front-side scraping plate and the rear-side scraping plate are made to move to the positions above the waste discharge cavities on the front side and the rear side from the middles of the multiple magnetic rollers correspondingly, so that the front-side scraping plate and the rear-side scraping plate are separated from the magnetic rollers; and waste residues are scraped to the position above the waste discharging cavity, so that the waste residues fall off, waste discharging is convenient, and manual cleaning is not needed.

Description

Technical Field

[0001] The present invention belongs to the technical field of lithium battery anode material processing, and particularly relates to a segmented scraping roller type magnetic removal mechanism for lithium battery anode materials. Background Art

[0002] Graphite is commonly used as the anode material for lithium-ion batteries due to its wide source, low price, low charge-discharge voltage platform, high reversible capacity, etc. However, using graphite as the anode material for lithium-ion batteries also has many disadvantages; currently, in order to solve the problem of magnetic substances mixed in the material, generally, a magnetic removal structure is used to adsorb magnetic particles to achieve the purpose of purifying the lithium battery anode material. Generally, a pluggable magnetic rod can be used to adsorb and separate magnetic substances. When using this structure, when a large amount of magnetic substances adhere to the magnetic rod, it needs to be cleaned regularly. Generally, the magnetic rod is taken out for cleaning, and after cleaning, the magnetic rod is inserted again for reuse. The whole process is relatively cumbersome, time-consuming and laborious to take out and clean, increasing the labor intensity of operators and reducing the efficiency of magnetic removal operations. Therefore, it is necessary to upgrade and transform the structure, improve the flexibility and efficiency of the structure, and improve the operation efficiency while reducing the manual labor intensity. Summary of the Invention

[0003] Aiming at the deficiencies of the above-mentioned prior art, the problem solved by the present invention is: to provide a segmented scraping roller type magnetic removal mechanism for lithium battery anode materials that can conveniently and quickly remove the waste residues adsorbed on the magnetic roller and effectively avoid the problem of waste residue accumulation and dropping during scraping.

[0004] To solve the above problems, the technical solutions adopted by the present invention are as follows: A segmented scraping roller type magnetic removal mechanism for lithium battery anode materials includes a magnetic removal box body, a feeding hopper, a positioning frame, a magnetic roller, a scraping roller assembly, a power mechanism, and a partition plate; the feeding hopper is installed in the middle of the upper end of the magnetic removal box body; the positioning frame is installed above the inside of the magnetic removal box body; a plurality of magnetic rollers are evenly installed on the positioning frame; the power mechanism is installed on the positioning frame, and the power mechanism drives the plurality of magnetic rollers to rotate synchronously, and the plurality of magnetic rollers are located below the feeding hopper; partition plates are respectively installed at the front and rear of the lower part inside the magnetic removal box body, and the partition plates divide the inside of the magnetic removal box body into a waste discharge cavity at the front and rear sides and a material discharge cavity in the middle, and both the waste discharge cavity and the material discharge cavity are located below the magnetic rollers; the scraping roller assembly includes a front side scraper, a rear side scraper, and a driving motor; the front side scraper and the rear side scraper are respectively installed at the front and rear of the inside of the magnetic removal box body, and both the front side scraper and the rear side scraper are sleeved on the middle part of the plurality of magnetic rollers, and the front side scraper and the rear side scraper are connected in a front-back fitting manner; a driving motor is respectively installed on both sides of the positioning frame, and the driving motor drives the front side scraper and the rear side scraper to move relatively, and makes the front side scraper and the rear side scraper move from the middle part of the plurality of magnetic rollers to above the waste discharge cavities at the front and rear sides respectively, and at the same time, the front side scraper and the rear side scraper are separated from the magnetic rollers for waste discharge.

[0005] Furthermore, adjustment blocks are respectively arranged on the outer sides of both ends of the front scraper and the rear scraper; moving tracks are respectively arranged on the front and rear sides of the positioning frame, and the moving tracks on the same side are connected by a rotating screw rod. The rotating screw rod rotates to drive the two adjustment blocks to move relatively forward and backward, and one end of the rotating screw rod is connected to a driving motor.

[0006] Furthermore, both ends of the magnetic roller respectively extend above the waste discharge cavity.

[0007] Furthermore, a material distribution plate is arranged in the middle of the feeding hopper. The material distribution plate divides the inside of the feeding hopper into a front discharge cavity and a rear discharge cavity respectively in the front and rear. The front discharge cavity and the rear discharge cavity respectively correspond to the front and rear above the magnetic roller.

[0008] Furthermore, the power mechanism includes a rotating rod, a rotating sprocket, a magnetic roller motor, a series-connected chain, and a power sprocket; transmission cavities are respectively arranged on the front and rear sides of the positioning frame; rotating rods are respectively installed at both ends of the magnetic roller, and the rotating rods are rotatably clamped on the side walls of the positioning frame. The outer ends of the rotating rods are respectively connected to rotating sprockets, and the rotating sprockets are distributed in the transmission cavities; magnetic roller motors are respectively installed on the front and rear of the positioning frame, a power sprocket is installed at one end of the magnetic roller motor, and the power sprocket and multiple rotating sprockets are connected by a series-connected chain.

[0009] Furthermore, the rotating rod is located above the waste discharge cavity; the driving motor drives the front scraper and the rear scraper to move relatively to the rotating rod respectively.

[0010] Furthermore, it further includes an external controller; the external controller is controlled and connected to the driving motor and the magnetic roller motor.

[0011] Furthermore, both sides of the positioning frame are installed on the inner side walls of the demagnetization box body through positioning columns.

[0012] Furthermore, the positioning frame is in a rectangular frame structure.

[0013] The beneficial effects of the present invention are as follows: 1. The present invention uses a partition plate to divide the lower part inside the demagnetization box body into a waste discharge cavity distributed front and rear and a discharge cavity in the middle. In this way, the negative electrode raw materials fed through the feeding hopper are adsorbed by multiple magnetic rollers in the front and rear sections. The multiple magnetic rollers are rotationally driven by a power mechanism to achieve uniform magnetic adsorption. When it is necessary to clean the waste residues adsorbed on the magnetic rollers, the driving motor drives the front scraper and the rear scraper to move relatively, and the front scraper and the rear scraper are respectively moved from the middle of the multiple magnetic rollers to above the front and rear waste discharge cavities. In this way, the front scraper and the rear scraper are separated from the magnetic rollers, and the waste residues are scraped to above the waste discharge cavity, so that the waste residues fall, realizing convenient waste discharge without manual cleaning.

[0014] 2. The present invention is designed with two scraping plates, namely a front scraping plate and a rear scraping plate. During normal operation, both the front scraping plate and the rear scraping plate are sleeved on the middle parts of multiple magnetic rollers, and the front scraping plate and the rear scraping plate are attached to each other front and back. In this way, when cleaning is required, the front scraping plate and the rear scraping plate move relatively and separately. In this way, the scraping stroke of the scraping plate on the magnetic roller is shortened, and the stroke is shortened by half. In this way, the drawback that waste residue accumulates and falls into the discharge cavity during the long-distance scraping process of the scraping plate is prevented, that is, the waste residue on the entire original magnetic roller is divided into two sections for scraping, reducing the drawback that waste residue accumulates and falls into the discharge cavity, and the structural design is ingenious. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 is a schematic structural diagram of the present invention.

[0016] Figure 2 is a schematic top view structural diagram of the positioning frame and the scraping roller assembly of the present invention.

[0017] Figure 3 is a schematic structural diagram of the front scraping plate and the rear scraping plate of the present invention scraping while moving relatively and separately.

[0018] Figure 4 For the present invention Figure 3 is an enlarged schematic structural diagram of the lower side part.

[0019] Figure 5 is a schematic bottom view structural diagram of the feed hopper of the present invention.

[0020] Figure 6 is a schematic connection structural diagram of the magnetic roller and the front scraping plate of the present invention. DETAILED DESCRIPTION OF THE INVENTION

[0021] The following further details the content of the present invention with reference to the accompanying drawings.

[0022] Such as Figures 1 to 6As shown in the figure, a magnetic removal mechanism for lithium battery anode materials with a segmented scraping roller includes a magnetic removal box body 1, a feeding hopper 2, a positioning frame 3, magnetic rollers 4, a scraping roller assembly 5, a power mechanism 6, and a partition plate 7. The feeding hopper 2 is installed in the middle of the upper end of the magnetic removal box body 1. The positioning frame 3 is installed above the inside of the magnetic removal box body 1. A plurality of magnetic rollers 4 are evenly installed on the positioning frame 3. The power mechanism 6 is installed on the positioning frame 3, and the power mechanism 6 drives the plurality of magnetic rollers 4 to rotate synchronously. The plurality of magnetic rollers 4 are located below the feeding hopper 2. The partition plates 7 are respectively installed at the front and rear of the lower part inside the magnetic removal box body 1. The partition plates 7 divide the inside of the magnetic removal box body 1 into a waste discharge cavity 11 at the front and rear sides and a material discharge cavity 12 in the middle. Both the waste discharge cavity 11 and the material discharge cavity 12 are located below the magnetic rollers 4. The scraping roller assembly 5 includes a front side scraper 51, a rear side scraper 52, and a driving motor 53. The front side scraper 51 and the rear side scraper 52 are respectively installed at the front and rear of the inside of the magnetic removal box body 1. The front side scraper 51 and the rear side scraper 52 are both sleeved on the middle part of the plurality of magnetic rollers 4. The front side scraper 51 and the rear side scraper 52 are connected in a front-to-back fitting manner. A driving motor 53 is installed on both sides of the positioning frame 3. The driving motor 53 drives the front side scraper 51 and the rear side scraper 52 to move relatively, and makes the front side scraper 51 and the rear side scraper 52 move from the middle part of the plurality of magnetic rollers 4 to the upper part of the waste discharge cavity 11 at the front and rear sides respectively. At the same time, the front side scraper 51 and the rear side scraper 52 are separated from the magnetic rollers 4 for waste discharge.

[0023] As Figures 1 to 6 shown, in order for the driving motor 53 to control the relative front-to-back movement of the front side scraper 51 and the rear side scraper 52, further, adjusting blocks 54 are respectively provided on the outer sides of both ends of the front side scraper 51 and the rear side scraper 52. Moving tracks 31 are respectively provided on the front and rear sides of the positioning frame 3. The moving tracks 31 on the same side are penetrated by a rotating screw rod 55. The rotating screw rod 55 rotates and drives the two adjusting blocks 54 to move relatively front-to-back. One end of the rotating screw rod 55 is connected to the driving motor 53.

[0024] As Figures 1 to 6 shown, in order to prevent waste residue from falling into the material discharge cavity 12, further, both the front and rear ends of the magnetic roller 4 extend above the waste discharge cavity 11.

[0025] As Figures 1 to 6 shown, in order for the anode material to pass through the front and rear sections of the magnetic roller 4 correspondingly, further, a dividing plate 21 is provided in the middle of the feeding hopper 2. The dividing plate 21 divides the inside of the feeding hopper 2 into a front side discharge cavity 22 and a rear side discharge cavity 23 respectively at the front and rear. The front side discharge cavity 22 and the rear side discharge cavity 23 respectively correspond to the front and rear parts above the magnetic roller 4.

[0026] As Figures 1 to 6As shown in the figure, in order to synchronously rotate and drive multiple magnetic rollers 4 to improve the uniformity of magnetic adsorption. Further, the power mechanism 6 includes a rotating rod 61, a rotating sprocket 62, a magnetic roller motor 63, a series-connected chain 64, and a power sprocket 65. Transmission cavities 32 are respectively provided on the front and rear sides of the positioning frame 3. The front and rear ends of the magnetic roller 4 are respectively installed with rotating rods 61, and the rotating rods 61 are rotatably clamped on the side walls of the positioning frame 3. The outer ends of the rotating rods 61 are respectively connected to the rotating sprockets 62, and the rotating sprockets 62 are distributed in the transmission cavities 32. The magnetic roller motors 63 are respectively installed on the front and rear of the positioning frame 3. One end of the magnetic roller motor 63 is installed with a power sprocket 65, and the power sprocket 65 and multiple rotating sprockets 62 are connected by a series-connected chain 64. In order to facilitate waste discharge, when the front scraper 51 and the rear scraper 52 move to the rotating rod 61, the magnetism disappears, and the waste residue automatically falls into the waste discharge cavity 11. Further, the rotating rod 61 is located above the waste discharge cavity 11. The driving motor 53 drives the front scraper 51 and the rear scraper 52 to relatively move to the rotating rod 61 respectively.

[0027] As Figures 1 to 6 shown, in order to enable automatic control, further, an external controller 8 is further included. The external controller 8 is control-connected to the driving motor 53 and the magnetic roller motor 63. Further, both sides of the positioning frame 3 are installed on the inner side walls of the demagnetization box body 1 through positioning columns 33. Further, the positioning frame 3 has a rectangular frame structure.

[0028] The present invention uses the partition plate 7 to divide the lower part inside the demagnetization box body 1 into a front and rear distributed waste discharge cavity 11 and a middle material discharge cavity 12. In this way, the negative electrode raw material fed through the feed hopper 2 is adsorbed by the front and rear sections of multiple magnetic rollers 4. The multiple magnetic rollers 4 are rotationally driven by the power mechanism 6 to achieve uniform magnetic adsorption. When it is necessary to clean the waste residue adsorbed on the magnetic rollers 4, the driving motor 53 drives the front scraper 51 and the rear scraper 52 to relatively move, and makes the front scraper 51 and the rear scraper 52 respectively move from the middle part of the multiple magnetic rollers 4 to the upper part of the front and rear waste discharge cavities 11. In this way, the front scraper 51 and the rear scraper 52 are separated from the magnetic rollers 4, and the waste residue is scraped to the upper part of the waste discharge cavity 11, so that the waste residue drops, realizing convenient waste discharge without manual cleaning.

[0029] The present invention designs two scraping plates, namely a front scraping plate 51 and a rear scraping plate 52. During normal operation, both the front scraping plate 51 and the rear scraping plate 52 are sleeved on the middle parts of a plurality of magnetic rollers 4, and the front scraping plate 51 and the rear scraping plate 52 are attached to each other front and back. Thus, when cleaning is required, the front scraping plate 51 and the rear scraping plate 52 move relatively and separately. In this way, the scraping stroke of the scraping plate on the magnetic roller 4 is shortened, and the stroke is shortened by half. Thus, the drawback that waste residue accumulates and falls into the discharge cavity 12 during the long-distance scraping process by the scraping plate is prevented, that is, the waste residue on the entire magnetic roller 4 is divided into two sections for scraping, reducing the drawback that waste residue accumulates and falls into the discharge cavity 12, and the structural design is ingenious.

[0030] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A segmented scraper roller type demagnetization mechanism for lithium battery negative electrode materials, characterized in that: It includes a demagnetization box, a feed hopper, a positioning frame, a magnetic roller, a scraper roller assembly, a power mechanism, and a partition plate; the feed hopper is installed in the middle of the upper end of the demagnetization box; the positioning frame is installed on the upper part of the demagnetization box; a plurality of magnetic rollers are evenly installed on the positioning frame; the power mechanism is installed on the positioning frame, and the power mechanism drives the plurality of magnetic rollers to rotate synchronously, and the plurality of magnetic rollers are located below the feed hopper; partition plates are installed at the front and back of the lower part of the demagnetization box, and the partition plates divide the interior of the demagnetization box into waste discharge chambers on the front and back sides and a material discharge chamber in the middle, and the waste discharge chamber and the material discharge chamber are both located at the magnetic roller ; the scraper roller assembly includes a front scraper, a rear scraper, and a drive motor; the front scraper and the rear scraper are respectively installed at the front and rear of the demagnetization box, and the front scraper and the rear scraper are both sleeved on the middle part of multiple magnetic rollers, and the front scraper and the rear scraper are closely connected front and back; a drive motor is respectively installed on both sides of the positioning frame, and the drive motor drives the front scraper and the rear scraper to move relative to each other, and makes the front scraper and the rear scraper move from the middle of the multiple magnetic rollers to the top of the waste discharge cavity on the front and rear sides respectively, and at the same time, the front scraper and the rear scraper are separated from the magnetic rollers for waste discharge.

2. The segmented scraper roller type lithium battery negative electrode material demagnetization mechanism according to claim 1, characterized in that: Adjustment blocks are respectively provided on the outer sides of both ends of the front scraper and the rear scraper; movable tracks are respectively provided on the front and rear sides of the positioning frame, and the movable tracks on the same side are connected by a rotating screw rod, which rotates and drives the two adjustment blocks to move relative to each other forward and backward, and one end of the rotating screw rod is connected to the driving motor.

3. The segmented scraper roller type lithium battery negative electrode material demagnetization mechanism according to claim 1, characterized in that: The front and rear ends of the magnetic roller extend to the top of the waste discharge cavity respectively.

4. The segmented scraper roller type lithium battery negative electrode material demagnetization mechanism according to claim 1, characterized in that: A dividing plate is provided in the middle of the feed hopper, which divides the front and back of the feed hopper into a front discharge cavity and a rear discharge cavity, respectively. The front discharge cavity and the rear discharge cavity correspond to the front and back of the upper part of the magnetic roller.

5. The segmented scraper roller type lithium battery negative electrode material demagnetization mechanism according to claim 1, characterized in that: The power mechanism includes a rotating rod, a rotating sprocket, a magnetic roller motor, a serial chain, and a power sprocket; transmission cavities are respectively provided on the front and rear sides of the positioning frame; rotating rods are respectively installed on the front and rear ends of the magnetic roller, and the rotating rods are rotatably clamped on the side wall of the positioning frame, and the outer ends of the rotating rods are respectively connected to rotating sprockets, and the rotating sprockets are distributed in the transmission cavity; magnetic roller motors are respectively installed on the front and rear of the positioning frame, and a power sprocket is installed at one end of the magnetic roller motor, and the power sprocket and multiple rotating sprockets are connected by a serial chain.

6. The segmented scraper roller type lithium battery negative electrode material demagnetization mechanism according to claim 5, characterized in that: The rotating rod is located above the waste discharge chamber; the driving motor drives the front scraper and the rear scraper to move relatively to the rotating rod respectively.

7. The segmented scraper roller type lithium battery negative electrode material demagnetization mechanism according to claim 5, characterized in that: It also includes an external controller; the external controller controls the connection between the driving motor and the magnetic roller motor.

8. The segmented scraper roller type lithium battery negative electrode material demagnetization mechanism according to claim 1, characterized in that: The two sides of the positioning frame are installed on the inner side walls of the demagnetization box through positioning columns.

9. The segmented scraper roller type lithium battery negative electrode material demagnetization mechanism according to claim 1, characterized in that: The positioning frame is in a rectangular frame structure.

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