A detection device for producing a lithium battery negative material

By designing a lithium battery anode material testing device that includes a vibration pressurization and powder dispersing mechanism, the problems of limited functionality and excessive human intervention in existing devices have been solved. This device enables simultaneous detection of multiple parameters and efficient recycling, meeting the high precision requirements of industrial production.

CN122193004APending Publication Date: 2026-06-12SHANDONG YANGZI BIOTECHNOLOGY CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2026-03-18
Publication Date
2026-06-12

AI Technical Summary

Technical Problem

Existing lithium battery anode material testing devices have limited functionality, making it difficult to simultaneously test multiple key parameters. They also suffer from low testing efficiency and are highly susceptible to human error, failing to meet the high precision and consistency requirements of industrial production.

Method used

A testing device for lithium battery anode material production was designed, comprising a vibration and pressure testing mechanism and a powder dispersing mechanism. It can simultaneously detect resistivity, compaction density, and vibration density, and achieve material recycling and leveling through mechanical means, reducing human intervention.

Benefits of technology

It enables simultaneous detection of multiple key parameters, improves detection accuracy and consistency, reduces human error, and meets the high-efficiency detection needs of industrial production.

✦ Generated by Eureka AI based on patent content.

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Abstract

The application relates to the technical field of lithium battery production and discloses a detection device for lithium battery negative electrode material production, which comprises a device body, a vibration and pressure detection mechanism for detecting the negative electrode material is arranged in the device body, a scattering and powdering mechanism for recycling the negative electrode material after detection is arranged below the vibration and pressure detection mechanism in the device body, a feeding and scraping mechanism for compacting the negative electrode material and scraping the negative electrode material during detection is arranged above the vibration and pressure detection mechanism in the device body, the pulling stretching rod is arranged to pull the connecting bottom plate, drive the pulling weighing device and the pressing block to move upwards, the pulling weighing device is arranged to pull the first fixing plate to lift the compacted negative electrode material upwards, the pulling weighing device is arranged to detect the weight of the negative electrode material loaded into the detection tube, and therefore, the resistivity, the compacted density and the tap density can be detected by using the vibration and pressure detection mechanism.
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Description

Technical Field

[0001] This invention relates to the field of lithium battery production technology, and specifically provides a testing device for the production of lithium battery anode materials. Background Technology

[0002] In the production of lithium batteries, the entire production process of lithium battery anode materials (graphite, silicon carbon, etc.) requires multi-dimensional testing. The core equipment covers four major categories: physical properties, microstructure, component purity, and electrochemical performance. It is the key to ensuring material consistency and battery safety. The testing equipment for lithium battery anode material production refers to the special equipment used in the production process of lithium battery anode materials (such as graphite, silicon carbon, artificial graphite, etc.) to test the performance indicators of powder raw materials, intermediate products or finished products in order to determine whether the product quality is qualified.

[0003] Currently, most traditional lithium battery anode material testing devices are single-function devices, typically only capable of offline testing of single indicators such as particle size, density, or resistivity. They are difficult to perform simultaneous testing of multiple key parameters on the same device, resulting in low testing efficiency. Furthermore, existing devices often employ manual sampling and loading methods, which are greatly affected by human factors, leading to poor repeatability and stability. These devices cannot meet the high-precision and high-consistency testing requirements of industrial production. Therefore, we propose a testing device for lithium battery anode material production. Summary of the Invention

[0004] The purpose of this invention is to address the shortcomings of existing technologies by providing a testing device for the production of lithium battery anode materials, thus solving the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a testing device for the production of lithium battery anode materials, comprising a device body, wherein a vibration and pressure testing mechanism for testing anode materials is provided inside the device body, a powder dispersing mechanism for recovering anode materials after testing is provided below the vibration and pressure testing mechanism inside the device body, and a feeding and leveling mechanism for compacting and leveling anode materials during testing is provided above the vibration and pressure testing mechanism inside the device body.

[0006] Preferably, the vibration and pressure detection mechanism includes a detection tube slidably connected inside the device body. A rod-shaped block is fixedly connected to the side surface of the detection tube. An upper annular fixing block and a lower annular fixing block are fixedly connected inside the device body. An upper rotating ring is rotatably connected inside the upper annular fixing block, and a lower rotating ring is rotatably connected inside the lower annular fixing block. A connecting rod is fixedly connected between the upper and lower rotating rings. A ring gear is fixedly connected to the outer surface of the connecting rod. A striking rod is rotatably connected inside the upper rotating ring. A bending spring is fixedly connected to the inner wall of the upper rotating ring. A vibration striking motor is fixedly connected to the upper surface of the lower annular fixing block, and a vibration gear is fixedly connected to the output shaft of the vibration striking motor.

[0007] Preferably, a frame is fixedly connected inside the main body of the device, a drive motor is fixedly connected inside the frame, a first threaded rod is fixedly connected to the output shaft of the drive motor, a lifting plate is threadedly connected to the outer surface of the first threaded rod, a first push rod is rotatably connected inside the lifting plate, a closed feeding plate is slidably connected inside the main body of the device, a push frame is fixedly connected to the upper surface of the closed feeding plate, an electrode plate is fixedly connected to the upper surface of the closed feeding plate, an electrode block is fixedly connected to the bottom end of the electrode plate, and a telescopic tube is fixedly connected to the side surface of the electrode block.

[0008] Preferably, the device body has a limiting groove and a second fixing plate fixedly connected inside, the side surface of the detection tube is fixedly connected to a first fixing plate, the lower surface of the second fixing plate is fixedly connected to a pulling telescopic rod, the bottom end of the pulling telescopic rod is fixedly connected to a connecting base plate, and the lower surface of the connecting base plate is fixedly connected to a pressing block and a pulling weighing device.

[0009] Preferably, the bending spring is disposed between the upper rotating ring and the striking rod, the ring gear is meshed with the vibrating gear, the upper rotating ring and the lower rotating ring are fixedly connected by a connecting rod, the push frame and the lifting plate are rotatably connected by a first push rod, the pulling weighing device is slidably connected inside the first fixed plate, and the first threaded rod is rotatably connected inside the device body.

[0010] Preferably, the powder dispersing mechanism includes a limiting block fixedly connected inside the device body, a lifting tube slidably connected inside the limiting block, a limiting rod fixedly connected inside the lifting tube, a fixing frame fixedly connected to the side surface of the lifting tube, a rotating lifting motor fixedly connected to one side of the fixing frame, a first trapezoidal gear fixedly connected to the output shaft of the rotating lifting motor, a bottom shell fixedly connected inside the lifting tube, a rotating top shell rotatably connected to the upper surface of the bottom shell, a first rotating rod fixedly connected inside the rotating top shell, a second rotating rod slidably connected to the outer surface of the first rotating rod, a second threaded rod rotatably connected inside the bottom shell, a lifting rod threadedly connected to the outer surface of the second threaded rod, a second trapezoidal gear fixedly connected to the bottom end of the first rotating rod, a third trapezoidal gear fixedly connected to the outer surface of the second threaded rod, a discharge port opened at the bottom end of the lifting tube, a scraper fixedly connected to the upper outer surface of the discharge port, a first pushing block fixedly connected to the side surface of the lifting tube, and a collecting groove slidably connected inside the lower end of the device body.

[0011] Preferably, a second push rod is fixedly connected to the lower surface of the closed feeding plate, a fixed groove and a fixed bar are fixedly connected inside the device body, a sliding rod is slidably connected inside the fixed bar, a push plate is fixedly connected to one end of the sliding rod, a second push block is fixedly connected to the other end of the sliding rod, and a spring is sleeved on the outer surface of the sliding rod.

[0012] Preferably, the first pushing block is slidably connected inside the fixed groove, the spring is disposed between the fixed block and the pushing plate, the second pushing rod is disposed behind the pushing plate, the collecting groove is disposed above the lifting tube, the second rotating rod is slidably connected inside the limiting rod, and the lifting rod is fixedly connected inside the second rotating rod.

[0013] Preferably, a third push rod is fixedly connected to the upper end of the device body, a leveling frame is fixedly connected to one end of the third push rod, a compaction rod is fixedly connected to the inside of the leveling frame, a compaction plate is fixedly connected to the bottom end of the compaction rod, and a feed inlet is provided inside the device body.

[0014] Preferably, a display is fixedly connected to the side surface of the device body, a first inspection port and a second inspection port are provided inside the device body, and a support leg is fixedly connected to the lower surface of the device body.

[0015] Compared with the prior art, the present invention has the following beneficial effects: 1. This invention uses a vibration and pressure testing mechanism to test lithium battery negative electrode materials. After the material is fed into the testing tube through the inlet, the upper surface of the tube is first leveled by a scraper. Then, a vibration motor is activated, driving a vibration gear to rotate. This gear, in turn, drives a ring gear, which in turn drives an upper and lower rotating ring. Simultaneously, a striking rod slides above a rod-shaped block. When the striking rod disengages from the highest point of the rod-shaped block, it strikes the outer surface of the testing tube under the thrust of a bending spring, thus detecting the tap density. After testing, a compaction rod is used to... The compaction plate is pushed to mechanically press the negative electrode material inside the test tube, thereby achieving the function of testing the compaction density. After compaction, the electrode plate at the bottom and the compaction plate at the top are connected to the upper and lower ends of the negative electrode material, thereby achieving the function of testing resistivity. At the same time, the set pull telescopic rod pulls the connecting base plate, which drives the pull weighing device and the pressing block to move upward. The set pull weighing device pulls the first fixed plate to lift the compacted negative electrode material upward. The set pull weighing device detects the weight of the negative electrode material loaded into the test tube, thereby achieving the function of testing resistivity, compaction density, and vibration density using a vibration and pressure testing mechanism.

[0016] 2. This invention uses a powder-dispersing mechanism to disperse and recover the compacted negative electrode material inside the detection tube. After detection, a drive motor is activated to rotate the first threaded rod, which in turn moves the lifting plate downwards. Simultaneously, the lifting plate moves downwards, and the first push rod pushes the closed feeding plate to the right until the opening of the closed feeding plate is below the detection tube. At the same time, the second push rod pushes the push plate to the right. As the push plate moves, the sliding rod causes the second push block to move upwards, pushing the first push block upwards, thus bringing the top of the lifting tube into contact with the lower surface of the closed feeding plate. Then, the device is activated... The rotating lifting motor drives the first trapezoidal gear to rotate, which in turn drives the second and third trapezoidal gears to rotate in opposite directions. This, in turn, drives the first rotating rod and the second threaded rod to rotate. When the first rotating rod and the second threaded rod rotate in opposite directions, the second rotating rod will be driven to rotate. At the same time, the rotating second threaded rod will push the lifting rod to move upward, thus driving the second rotating rod to rotate and move upward. This causes the scraper to rotate and move upward, scraping off the compacted negative electrode material inside the detection tube. The scraped material then falls into the collection tank through the discharge port, thereby achieving the function of recovering the negative electrode material after detection. Attached Figure Description

[0017] Figure 1 This is a front view of a testing device for the production of lithium battery anode materials proposed in this invention; Figure 2This is a side cross-sectional view of a testing device for the production of lithium battery anode materials proposed in this invention; Figure 3 For the present invention Figure 2 Enlarged view of point A; Figure 4 For the present invention Figure 2 Enlarged view of point B; Figure 5 This is a schematic diagram of the vibration and pressurization mechanism of a testing device for the production of lithium battery anode materials proposed in this invention; Figure 6 This is a cross-sectional view of the material dispersing mechanism of a testing device for lithium battery anode material production proposed in this invention; Figure 7 For the present invention Figure 6 Enlarged view of point C; Figure 8 This is a schematic diagram of the disintegration mechanism of a testing device for the production of lithium battery anode materials proposed in this invention; Figure 9 This is a front cross-sectional view of a testing device for the production of lithium battery anode materials proposed in this invention.

[0018] Legend: 1. Device body; 2. Vibration and pressure testing mechanism; 201. Detection tube; 202. Rod-shaped block; 203. Upper annular fixing block; 204. Lower annular fixing block; 205. Upper rotating ring; 206. Lower rotating ring; 207. Connecting rod; 208. Ring gear; 209. Beating rod; 210. Bending spring; 211. Vibration beating motor; 212. Vibration gear; 213. Frame; 214. Drive motor; 215. 216. First threaded rod; 217. Lifting plate; 218. First push rod; 219. Closed discharge plate; 220. Push frame; 221. Electrode plate; 222. Electrode block; 223. Telescopic cable; 224. Limiting groove; 225. First fixing plate; 226. Pull telescopic rod; 227. Connecting base plate; 228. Pressing block; 229. Pull weighing device; 4. Powder dispersing mechanism; 401. Limiting 402. Positioning block; 403. Lifting pipe; 404. Limiting rod; 405. Fixing frame; 406. Rotating lifting motor; 407. First trapezoidal gear; 408. Bottom shell; 409. Rotating top shell; 410. First rotating rod; 411. Second rotating rod; 412. Second threaded rod; 413. Lifting rod; 414. Second trapezoidal gear; 415. Third trapezoidal gear; 416. Discharge port; 417. Scraper; 418. First pusher 418. Block; 419. Collection trough; 420. Fixing bar; 421. Sliding rod; 422. Push plate; 423. Spring; 424. Second push block; 425. Second push rod; 5. Feeding and leveling mechanism; 501. Feed inlet; 502. Third push rod; 503. Leveling frame; 504. Compacting rod; 505. Compacting plate; 6. Display; 7. First inspection port; 8. Second inspection port; 9. Support leg. Detailed Implementation

[0019] To better understand the above-mentioned objectives, features, and advantages of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0020] Numerous specific details are set forth in the following description in order to provide a full understanding of the invention. However, the invention may also be practiced in other ways different from those described herein, and therefore the invention is not limited to the specific embodiments disclosed below.

[0021] like Figures 1-9 The device shown is a testing device for the production of lithium battery negative electrode materials. It includes a device body 1. The device body 1 is equipped with a vibration and pressure testing mechanism 2 for testing negative electrode materials. Below the vibration and pressure testing mechanism 2 inside the device body 1 is a powder dispersing mechanism 4 for recovering negative electrode materials after testing. Above the vibration and pressure testing mechanism 2 inside the device body 1 is a feeding and leveling mechanism 5 for compacting and leveling negative electrode materials during testing.

[0022] The vibration and pressure testing mechanism 2 includes a detection tube 201 slidably connected inside the device body 1. A rod-shaped block 202 is fixedly connected to the side surface of the detection tube 201. An upper annular fixing block 203 and a lower annular fixing block 204 are fixedly connected inside the device body 1. An upper rotating ring 205 is rotatably connected inside the upper annular fixing block 203, and a lower rotating ring 206 is rotatably connected inside the lower annular fixing block 204. A connecting rod 207 is fixedly connected between the upper rotating ring 205 and the lower rotating ring 206. A ring gear 208 is fixedly connected to the outer surface of the connecting rod 207. The upper rotating ring 205 rotates internally... A striking rod 209 is connected to the device. A bent spring piece 210 is fixedly connected to the inner wall of the upper rotating ring 205. A vibrating striking motor 211 is fixedly connected to the upper surface of the lower annular fixed block 204. A vibrating gear 212 is fixedly connected to the output shaft of the vibrating striking motor 211. A frame 213 is fixedly connected inside the device body 1. A push motor 214 is fixedly connected inside the frame 213. A first threaded rod 215 is fixedly connected to the output shaft of the push motor 214. A lifting plate 216 is threadedly connected to the outer surface of the first threaded rod 215. A first push rod 217 is rotatably connected inside the lifting plate 216. A closed feeding plate 218 is slidably connected inside the device body 1. A pusher frame 219 is fixedly connected to the upper surface of the closed feeding plate 218. An electrode plate 220 is fixedly connected to the upper surface of the closed feeding plate 218. An electrode block 221 is fixedly connected to the bottom end of the electrode plate 220. A telescopic tube 222 is fixedly connected to the side surface of the electrode block 221. A limit groove 223 and a second fixing plate 225 are fixedly connected inside the device body 1. A first fixing plate 224 is fixedly connected to the side surface of the detection tube 201. A pull telescopic rod 226 is fixedly connected to the lower surface of the second fixing plate 225. A connecting base plate 227 is fixedly connected to the bottom of the device 6. A pressing block 228 and a pulling weighing device 229 are fixedly connected to the lower surface of the connecting base plate 227. A bending spring 210 is disposed between the upper rotating ring 205 and the striking rod 209. A ring gear 208 is meshed with a vibration gear 212. The upper rotating ring 205 and the lower rotating ring 206 are fixedly connected by a connecting rod 207. The push frame 219 and the lifting plate 216 are rotatably connected by a first push rod 217. The pulling weighing device 229 is slidably connected inside the first fixed plate 224. The first threaded rod 215 is rotatably connected inside the device body 1.

[0023] Furthermore, the lithium battery negative electrode material to be tested is tested through the vibration and pressure testing mechanism 2. After the material to be tested is added into the testing tube 201 through the feed inlet 501, the upper surface of the testing tube 201 is first leveled by the scraper 503. Then, the vibration tapping motor 211 is started to drive the vibration gear 212 to rotate, which in turn drives the ring gear 208 to rotate. The rotating ring gear 208 drives the upper rotating ring 205 and the lower rotating ring 206 to rotate. At the same time, the tapping rod 209 slides above the rod-shaped block 202. When the tapping rod 209 leaves the highest fixed point of the rod-shaped block 202, under the thrust of the bending spring 210, the tapping rod 209 strikes the outer surface of the testing tube 201 to achieve the function of detecting the tap density. After the test is completed, The compaction rod 504 pushes the compaction plate 505 to mechanically press and test the negative electrode material inside the test tube 201, thereby achieving the function of testing the compaction density. After compaction, the electrode plate 220 at the bottom and the compaction plate 505 at the top are connected to the upper and lower ends of the negative electrode material, thereby achieving the function of testing resistivity. At the same time, the telescopic rod 226 pulls the connecting base plate 227, which drives the weighing device 229 and the pressing block 228 to move upward. The weighing device 229 pulls the first fixed plate 224 to lift the compacted negative electrode material upward. The weighing device 229 tests the weight of the negative electrode material inside the test tube 201, thereby achieving the function of testing resistivity, compaction density, and vibration density using the vibration and pressure testing mechanism 2.

[0024] The powder dispersing mechanism 4 includes a limiting block 401 fixedly connected inside the device body 1. A lifting tube 402 is slidably connected inside the limiting block 401. A limiting rod 403 is fixedly connected inside the lifting tube 402. A fixing frame 404 is fixedly connected to the side surface of the lifting tube 402. A rotating lifting motor 405 is fixedly connected to one side of the fixing frame 404. A first trapezoidal gear 406 is fixedly connected to the output shaft of the rotating lifting motor 405. A bottom shell 407 is fixedly connected inside the lifting tube 402. The upper surface of the bottom shell 407... A rotating top shell 408 is rotatably connected to the top shell 407. A first rotating rod 409 is fixedly connected inside the rotating top shell 408. A second rotating rod 410 is slidably connected to the outer surface of the first rotating rod 409. A second threaded rod 411 is rotatably connected inside the bottom shell 407. A lifting rod 412 is threadedly connected to the outer surface of the second threaded rod 411. A second trapezoidal gear 413 is fixedly connected to the bottom end of the first rotating rod 409. A third trapezoidal gear 414 is fixedly connected to the outer surface of the second threaded rod 411. The bottom end of the lifting tube 402 is opened... The device has a discharge port 415, with a scraper 416 fixedly connected to the upper outer surface of the discharge port 415. A first pushing block 417 is fixedly connected to the side surface of the lifting pipe 402. A collecting groove 418 is slidably connected to the lower end of the device body 1. A second pushing rod 425 is fixedly connected to the lower surface of the closed discharge plate 218. A fixing groove 419 and a fixing bar 420 are fixedly connected inside the device body 1. A sliding rod 421 is slidably connected inside the fixing bar 420. A pushing plate 422 is fixedly connected to one end of the sliding rod 421. The other end of the rod 421 is fixedly connected to a second push block 424. A spring 423 is sleeved on the outer surface of the sliding rod 421. The first push block 417 is slidably connected inside the fixed groove 419. The spring 423 is set between the fixed bar 420 and the push plate 422. The second push rod 425 is set behind the push plate 422. The collection groove 418 is set above the lifting tube 402. The second rotating rod 410 is slidably connected inside the limiting rod 403. The lifting rod 412 is fixedly connected inside the second rotating rod 410.

[0025] Furthermore, the powder-dispersing mechanism 4 is used to disperse and recycle the compacted negative electrode material inside the detection tube 201. After the detection is completed, the drive motor 214 is started to drive the first threaded rod 215 to rotate, thereby driving the lifting plate 216 to move downward. When the lifting plate 216 moves downward, the first push rod 217 pushes the closed feeding plate 218 to the right until the opening of the closed feeding plate 218 moves below the detection tube 201. At the same time, the second push rod 425 pushes the push plate 422 to the right. When the push plate 422 moves, the sliding rod 421 drives the second push block 424 to push the first push block 417 upward, so that the top of the lifting tube 402 is in contact with the lower surface of the closed feeding plate 218, and then... The starting and rotating lifting motor 405 drives the first trapezoidal gear 406 to rotate, which in turn drives the second trapezoidal gear 413 and the third trapezoidal gear 414 to rotate in opposite directions. This, in turn, drives the first rotating rod 409 and the second threaded rod 411 to rotate. When the first rotating rod 409 and the second threaded rod 411 rotate in opposite directions, the second rotating rod 410 is driven to rotate. At the same time, the rotating second threaded rod 411 pushes the lifting rod 412 to move upward. As a result, the second rotating rod 410 is driven to rotate and move upward. This causes the scraper 416 to rotate and move upward, scraping off the compacted negative electrode material inside the detection tube 201. The material then falls into the collection tank 418 through the discharge port 415, thus achieving the function of recovering the negative electrode material after detection.

[0026] A third push rod 502 is fixedly connected to the upper end of the device body 1. A leveling frame 503 is fixedly connected to one end of the third push rod 502. A compaction rod 504 is fixedly connected inside the leveling frame 503. A compaction plate 505 is fixedly connected to the bottom end of the compaction rod 504. A feed inlet 501 is opened inside the device body 1. A display 6 is fixedly connected to the side surface of the device body 1. A first inspection port 7 and a second inspection port 8 are opened inside the device body 1. A support leg 9 is fixedly connected to the lower surface of the device body 1.

[0027] Working principle: First, the material to be tested is added into the testing tube 201 through the feed inlet 501. Then, the upper surface of the testing tube 201 is leveled by the scraper frame 503. Next, the vibration tapping motor 211 is started, driving the vibration gear 212 to rotate. The vibration gear 212 then drives the ring gear 208 to rotate. The rotating ring gear 208 drives the upper rotating ring 205 and the lower rotating ring 206 to rotate. While rotating, the tapping rod 209 slides above the rod-shaped block 202. When the tapping rod 209 leaves the highest fixed point of the rod-shaped block 202, it strikes the outer surface of the testing tube 201 under the thrust of the bending spring 210, thereby achieving the function of detecting the compaction density. After the test is completed, the compaction rod 5... 04. The compaction plate 505 is pushed to mechanically press the negative electrode material inside the detection tube 201, thereby achieving the function of detecting the compaction density. After compaction, the electrode plate 220 at the bottom and the compaction plate 505 at the top are connected to the upper and lower ends of the negative electrode material, thereby achieving the function of detecting resistivity. At the same time, the connecting base plate 227 is pulled by the telescopic rod 226, which drives the weighing device 229 and the pressing block 228 to move upward. The weighing device 229 pulls the first fixed plate 224 to lift the compacted negative electrode material upward. The weighing device 229 detects the weight of the negative electrode material inside the detection tube 201, thereby achieving the function of using the vibration and pressure detection mechanism 2 to detect resistivity, The compacted density and vibratory density are tested. After the test is completed, the drive motor 214 is started to drive the first threaded rod 215 to rotate, thereby driving the lifting plate 216 to move downward. When the lifting plate 216 moves downward, it will push the closed feeding plate 218 to the right through the first push rod 217 until the opening of the closed feeding plate 218 is moved below the detection tube 201. At the same time, the second push rod 425 pushes the push plate 422 to the right. When the push plate 422 moves, it will cause the sliding rod 421 to drive the second push block 424 to push the first push block 417 upward, so that the top of the lifting tube 402 is in contact with the lower surface of the closed feeding plate 218. Then, the lifting motor 405 is started to rotate. The first trapezoidal gear 406 rotates, thereby driving the second trapezoidal gear 413 and the third trapezoidal gear 414 to rotate in opposite directions simultaneously. This, in turn, drives the first rotating rod 409 and the second threaded rod 411 to rotate. When the first rotating rod 409 and the second threaded rod 411 rotate in opposite directions, the second rotating rod 410 is driven to rotate. Simultaneously, the rotating second threaded rod 411 pushes the lifting rod 412 to move upward. As a result, the second rotating rod 410 is driven to rotate and move upward, causing the scraper 416 to rotate and move upward, scraping off the compacted negative electrode material inside the detection tube 201. The material then falls through the discharge port 415 into the collection tank 418, thus achieving the function of recovering the negative electrode material after detection.

[0028] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed invention. The scope of protection claimed by the appended claims and their equivalents is defined.

Claims

1. A testing device for the production of lithium battery anode materials, comprising a device body (1), characterized in that: The device body (1) is equipped with a vibration and pressure testing mechanism (2) for testing negative electrode materials. Below the vibration and pressure testing mechanism (2) inside the device body (1) is a powder dispersing mechanism (4) for recovering negative electrode materials after testing. Above the vibration and pressure testing mechanism (2) inside the device body (1) is a feeding and leveling mechanism (5) for compacting negative electrode materials and leveling negative electrode materials during testing.

2. The testing device for lithium battery anode material production according to claim 1, characterized in that: The vibration and pressure detection mechanism (2) includes a detection tube (201) slidably connected inside the device body (1). A rod-shaped block (202) is fixedly connected to the side surface of the detection tube (201). An upper annular fixing block (203) and a lower annular fixing block (204) are fixedly connected inside the device body (1). An upper rotating ring (205) is rotatably connected inside the upper annular fixing block (203). A lower rotating ring (206) is rotatably connected inside the lower annular fixing block (204). A connecting rod (207) is fixedly connected between the upper ring (205) and the lower rotating ring (206). A ring gear (208) is fixedly connected to the outer surface of the connecting rod (207). A slapping rod (209) is rotatably connected inside the upper rotating ring (205). A bent spring sheet (210) is fixedly connected to the inner wall of the upper rotating ring (205). A vibration slapping motor (211) is fixedly connected to the upper surface of the lower annular fixed block (204). A vibration gear (212) is fixedly connected to the output shaft of the vibration slapping motor (211).

3. The testing device for lithium battery anode material production according to claim 2, characterized in that: The device body (1) is internally fixedly connected to a frame (213), and the frame (213) is internally fixedly connected to a drive motor (214). The output shaft of the drive motor (214) is fixedly connected to a first threaded rod (215). The outer surface of the first threaded rod (215) is threadedly connected to a lifting plate (216). The lifting plate (216) is internally rotatably connected to a first push rod (217). The device body (1) is internally slidably connected to a closed feeding plate (218). The upper surface of the closed feeding plate (218) is fixedly connected to a push frame (219). The upper surface of the closed feeding plate (218) is fixedly connected to an electrode plate (220). The bottom end of the electrode plate (220) is fixedly connected to an electrode block (221). The side surface of the electrode block (221) is fixedly connected to a telescopic electric tube (222).

4. The testing device for lithium battery anode material production according to claim 3, characterized in that: The device body (1) is internally fixedly connected to a limiting groove (223) and a second fixing plate (225). The side surface of the detection tube (201) is fixedly connected to a first fixing plate (224). The lower surface of the second fixing plate (225) is fixedly connected to a pulling telescopic rod (226). The bottom end of the pulling telescopic rod (226) is fixedly connected to a connecting base plate (227). The lower surface of the connecting base plate (227) is fixedly connected to a pressing block (228) and a pulling weighing device (229).

5. The testing device for lithium battery anode material production according to claim 4, characterized in that: The bending spring (210) is disposed between the upper rotating ring (205) and the striking rod (209). The ring gear (208) is meshed with the vibration gear (212). The upper rotating ring (205) and the lower rotating ring (206) are fixedly connected by the connecting rod (207). The push frame (219) and the lifting plate (216) are rotatably connected by the first push rod (217). The pulling weighing device (229) is slidably connected inside the first fixed plate (224). The first threaded rod (215) is rotatably connected inside the device body (1).

6. The testing device for lithium battery anode material production according to claim 5, characterized in that: The powder dispersing mechanism (4) includes a limiting block (401) fixedly connected inside the device body (1). A lifting tube (402) is slidably connected inside the limiting block (401). A limiting rod (403) is fixedly connected inside the lifting tube (402). A fixing frame (404) is fixedly connected to the side surface of the lifting tube (402). A rotating lifting motor (405) is fixedly connected to one side of the fixing frame (404). A first trapezoidal gear (406) is fixedly connected to the output shaft of the rotating lifting motor (405). A bottom shell (407) is fixedly connected inside the lifting tube (402). A rotating top shell (408) is rotatably connected to the upper surface of the bottom shell (407). A first rotating rod (409) is fixedly connected inside the rotating top shell (408). The outer surface of the first rotating rod (409) is slidably connected to the second rotating rod (410), the inner surface of the bottom shell (407) is rotatably connected to the second threaded rod (411), the outer surface of the second threaded rod (411) is threadedly connected to the lifting rod (412), the bottom end of the first rotating rod (409) is fixedly connected to the second trapezoidal gear (413), the outer surface of the second threaded rod (411) is fixedly connected to the third trapezoidal gear (414), the bottom end of the lifting tube (402) is provided with a discharge port (415), the upper outer surface of the discharge port (415) is fixedly connected to the scraper (416), the side surface of the lifting tube (402) is fixedly connected to the first pushing block (417), and the lower end of the device body (1) is slidably connected to the collection groove (418).

7. The testing device for lithium battery anode material production according to claim 6, characterized in that: The lower surface of the closed feeding plate (218) is fixedly connected to a second push rod (425). The inside of the device body (1) is fixedly connected to a fixing groove (419) and a fixing bar (420). The inside of the fixing bar (420) is slidably connected to a sliding rod (421). One end of the sliding rod (421) is fixedly connected to a push plate (422), and the other end of the sliding rod (421) is fixedly connected to a second push block (424). A spring (423) is sleeved on the outer surface of the sliding rod (421).

8. The testing device for lithium battery anode material production according to claim 7, characterized in that: The first push block (417) is slidably connected inside the fixed groove (419), the spring (423) is disposed between the fixed bar (420) and the push plate (422), the second push rod (425) is disposed behind the push plate (422), the collecting groove (418) is disposed above the lifting tube (402), the second rotating rod (410) is slidably connected inside the limiting rod (403), and the lifting rod (412) is fixedly connected inside the second rotating rod (410).

9. A testing device for the production of lithium battery anode materials according to claim 1, characterized in that: The upper end of the device body (1) is fixedly connected to a third push rod (502), one end of the third push rod (502) is fixedly connected to a leveling frame (503), the inside of the leveling frame (503) is fixedly connected to a compaction rod (504), the bottom end of the compaction rod (504) is fixedly connected to a compaction plate (505), and the inside of the device body (1) is provided with a feed inlet (501).

10. A testing device for the production of lithium battery anode materials according to claim 1, characterized in that: The device body (1) has a display (6) fixedly connected to its side surface, and the device body (1) has a first inspection port (7) and a second inspection port (8) inside. The device body (1) has a support leg (9) fixedly connected to its lower surface.