A positive electrode material bulk density detection device for a battery

Abstract

The utility model relates to battery material detection technical field discloses a kind of positive electrode material loose bulk density detection devices for battery, including device box and the guide rod, detection component, multi-section board, sliding block, fixed baffle, material guiding groove being arranged in device box;The detection component includes sliding block, support plate, measuring cylinder and weighing module, each pair of sliding block is connected by support plate, support plate middle is provided with measuring cylinder and the weighing module under measuring cylinder;The guide rod is arranged in pairs parallel to form track, and each guide rod is bent to form the ring with opening, and the both ends of guide rod are fixedly connected with the inner wall of device box through fixed baffle, and the guide rod is slidingly connected with sliding block;The detection component is connected with another detection component by the multi-section board of being foldable;At least one sliding block is electric sliding block;Material guiding groove is arranged in device box, and discharge port is provided in the bottom of material guiding groove.The present application aims to solve the problem of not continuous detection and fine particle material electrostatic adsorption.

Description

Technical Field

[0001] This utility model relates to the field of battery material testing technology, specifically to a device for detecting the loose packing density of positive electrode material for batteries. Background Technology

[0002] The loose packing density testing device for battery cathode materials is a specialized instrument used to measure the loose packing density of battery cathode materials. Loose packing density refers to the mass per unit volume of powder or granular materials in a naturally loose state. It is one of the important parameters for evaluating the physical properties of cathode materials and directly affects the compaction process and energy density of batteries.

[0003] As disclosed in CN205067271U, this utility model relates to a testing device for granular powder, specifically a powder bulk density testing device. The testing device includes a base, a support, a funnel, and a measuring cylinder. The support is mounted on the base, and a funnel support frame is mounted on the support. The funnel support frame is fixed to the upper part of the support by a positioning clip. The funnel is positioned on the funnel support frame, and the measuring cylinder is positioned on the base, its position corresponding vertically to the funnel. A movable plate is located in the middle of the base, and a positioning ring is provided on the movable plate. The measuring cylinder is positioned on the positioning ring, and a waste bin is located below the movable plate. After the test, this utility model only requires opening the movable plate to allow excess dust to fall into the waste bin below, eliminating the need to clean the entire base. This avoids inconvenience for operators and prevents accidental contact with other components during base cleaning, thus preventing damage to the instrument. It also reduces the influence of ambient airflow and the movement of people around on the measurement results, making the measurement results more accurate.

[0004] However, in existing technology, a positioning ring is set on the movable plate, and the measuring cylinder is placed on the positioning ring. Powder is added to the measuring cylinder through a funnel, and then the powder at the top of the measuring cylinder is leveled with a tool. After weighing, the movable plate deflects, causing the powder to fall into a collection cylinder. However, weighing, leveling, and discharging can only be performed one operation at a time, requiring personnel to wait, thus wasting a lot of time and preventing continuous testing, thereby reducing work efficiency. Fine powder particles are also prone to electrostatic adsorption, causing powder to adhere to the measuring cylinder and movable plate. If not cleaned in time, this will affect the next test. Utility Model Content

[0005] To address the existing problems, this utility model aims to provide a device for detecting the loose packing density of positive electrode materials for batteries. It addresses the issue that in existing technologies, weighing, leveling, and discharging can only be performed once, requiring personnel to wait, thus wasting considerable time and preventing continuous testing, thereby reducing work efficiency. Furthermore, it addresses the problem that fine powder particles are prone to electrostatic adsorption, causing powder to adhere to the measuring cylinder and movable plate; if not cleaned promptly, this can affect subsequent tests.

[0006] To achieve the above objectives, the present invention provides the following technical solution.

[0007] This utility model provides a device for detecting the loose packing density of positive electrode material for batteries, including a device housing and guide rods, detection components, multi-section plates, sliders, fixed baffles, and a material guide trough disposed within the device housing. The detection components include sliders, support plates, measuring cylinders, and weighing modules. Each pair of sliders is connected by a support plate, with a measuring cylinder and a weighing module located below the measuring cylinder in the middle of the support plate. The guide rods are arranged in pairs in parallel to form a track, and each guide rod is bent to form an open loop. The two ends of the guide rods are fixedly connected to the inner wall of the device housing by fixed baffles, and the guide rods are slidably connected to the sliders. The detection components are connected to another detection component through a bendable multi-section plate. At least one slider is an electric slider. A material guide trough is disposed within the device housing, with a discharge port at the bottom of the material guide trough.

[0008] As a further improvement of this utility model, it also includes a leveling component; the leveling component includes a bracket, a fixing rod and a scraper; the bracket is arranged horizontally above the guide rod, and the scraper is connected to the middle of the bracket through the fixing rod, and the scraper is flush with the upper surface of the measuring cylinder.

[0009] As a further improvement of this utility model, it also includes a vibration assembly; the vibration assembly includes a first rotating rod, a first striking block, a worm, a worm wheel, a second rotating rod, a second striking block, and a motor; the first rotating rod and the worm are coaxially connected, and are arranged alternately parallel to the length direction of the guide rod, both penetrating the inner cavity of the device housing and connected to a slotted bearing opened on the inner wall, the distance between adjacent worms being slightly greater than the length of the opening; the worm is connected to a turbine gear set on the second rotating rod, and a second striking block is set at one end of the second rotating rod; the first striking blocks are evenly distributed on the first rotating rod; one side of the first rotating rod is driven by a motor.

[0010] As a further improvement of this utility model, the vibration component is disposed below the guide trough.

[0011] As a further improvement of this utility model, the first striking block is a cam structure, and when the protrusion of the first striking block contacts the wall of the guide groove, it will form a squeeze.

[0012] As a further improvement of this utility model, the second striking block is a cam structure, and when the protrusion of the second striking block contacts the guide rod, it will form a squeezing action.

[0013] As a further improvement of this utility model, the guide trough is made of an elastic material.

[0014] As a further improvement of this utility model, the upper part of the cam structure of the second striking block is provided with a tapered smooth inclined surface.

[0015] As a further improvement of the present utility model, the annular structure of the guide rod includes a long straight section, bent sections connected to both sides of the long straight section, and a short straight section extending from the other side of the bent section.

[0016] As a further improvement of the present utility model, the multi-section plate is slidably connected to the guide rod.

[0017] The present utility model has the following beneficial effects:

[0018] The guide rod not only provides a stable sliding path for the slider but also facilitates the installation, removal, or other operations of the measuring cylinder through the opening structure. The slider is slidably connected to the guide rod, enabling the detection component to move flexibly to meet the requirements of different detection positions. In the detection component, each pair of sliders is connected by a support plate, and a measuring cylinder and a weighing module are arranged in the middle of the support plate. This design integrates the measuring cylinder and the weighing module, facilitating the direct measurement of the mass of the positive electrode material for batteries while measuring its volume through the measuring cylinder, and thus enabling the quick and accurate calculation of the bulk density of the positive electrode material. The multi-section plate connects different detection components, enabling the linkage or independent operation of multiple detection components, improving the flexibility and efficiency of detection. At least one slider is an electric slider, enabling automatic control, reducing manual operation, and improving the detection accuracy and efficiency. The setting of the material guiding groove and the collection port facilitates the discharge of the detected material from the device, facilitating cleaning and subsequent processing.

[0019] Preferably, the setting of the leveling component can ensure the flatness of the surface of the positive electrode material in the measuring cylinder. When adding the positive electrode material into the measuring cylinder, the surface of the material may be uneven, which will affect the accuracy of volume quantification or weight detection. By means of a bracket spanning above the guide rod, a middle fixing rod connects a scraping rod, and the scraping rod is flush with the upper surface of the measuring cylinder. When the detection component moves below the leveling component, the scraping rod can scrape the excess material in the measuring cylinder flat, ensuring the accurate measurement of the volume of the material in the measuring cylinder each time, thereby improving the accuracy of the entire bulk density detection.

[0020] Preferably, the design of the vibration component enables the positive electrode material to flow and distribute better within the device. The first rotating rod and the worm are coaxially connected and arranged alternately parallel to the length direction of the guide rod. The motor drives the first rotating rod to rotate,带动 the first knocking block and the worm to rotate. The worm is meshed with the turbine on the second rotating rod,进而带动 the second rotating rod and the second knocking block to rotate. The first rotating rod or the worm is connected to the groove opened on the inner wall by a bearing, improving the stability of axial movement and transmission. The rotation of the first knocking block and the second knocking block can generate a vibration effect on relevant components such as the material guiding groove and the guide rod, helping the positive electrode material to slide smoothly in the material guiding groove, avoiding material blockage, and also enabling the material to be more evenly distributed in the measuring cylinder, reducing the measurement error caused by uneven material accumulation, and improving the accuracy and reliability of detection.

[0021] Preferably, the vibration component is positioned below the feed trough, which allows for more direct and effective transmission of vibration to the feed trough. This ensures that the positive electrode material within the feed trough receives more thorough vibration, better promoting material flow and preventing material accumulation, blockage, or deposition on the surface of the vibration component. This ensures that the material can smoothly enter the measuring cylinder for testing, improving the smoothness and stability of the entire testing process.

[0022] Prior to this, the first striking block is designed as a cam structure, which creates compression when its protrusion contacts the wall of the feed chute. This compression action generates a stronger vibration effect. Compared to ordinary striking methods, the continuous rotation of the cam structure can subject the feed chute to periodic vibrations of varying intensities, better breaking the adhesion between the material and the feed chute wall, promoting material flow, preventing material from sticking and accumulating in the feed chute, and ensuring continuous and smooth material delivery.

[0023] Preferably, the second striking block has a cam structure, which creates pressure when its protrusion contacts the guide rod. This design generates vibration and transmits it to related components such as the detection assembly connected to the guide rod, thereby causing the measuring cylinder to vibrate slightly. The vibration of the measuring cylinder helps the positive electrode material to fill and distribute better within the cylinder, reducing voids between materials and making the measured volume closer to the true value, thus improving the accuracy of loose density detection.

[0024] Preferably, the feed trough is made of an elastic material. When the cam structure of the first striking block compresses its wall, the elastic material can respond to vibration better. It can undergo elastic deformation when compressed and quickly return to its original shape after the cam structure leaves. This repeated deformation and recovery process can enhance the vibration effect, allowing the material in the feed trough to be subjected to more effective vibration, further promoting material flow, preventing material blockage, and improving detection efficiency.

[0025] Preferably, the upper part of the cam structure of the second striking block is provided with a tapered smooth slope. This design can reduce friction when the cam structure comes into contact with the guide rod or other components during rotation, making the rotation of the cam structure smoother, reducing energy loss, and also reducing noise caused by friction, improving the operational stability and reliability of the entire device, and extending the service life of the device.

[0026] Preferably, the annular structure of the guide rod includes a long straight section, curved sections connecting both sides of the long straight section, and a short straight section extending from the other side of the curved section. The long straight section provides a stable track for the linear sliding of the slider, ensuring the stability of the detection component during movement; the design of the curved section allows the guide rod to form an annular structure, facilitating the tilting and pouring out of the positive electrode material by the detection device; after the detection device flips along the guide rod, the short straight section serves for positioning and connection. This linearly changing guide rod facilitates the detection device to complete a series of movements from powder loading, leveling, weighing to material discharge, improving the practicality, accuracy, and flexibility of the entire detection device.

[0027] Preferably, the multi-section plate and the guide rod are slidably connected, which can further reduce the load and friction of the slider, thereby improving the stability of the sliding connection between the slider and the guide rod. Attached Figure Description

[0028] The accompanying drawings described herein are for illustrative purposes only and do not limit the scope of this invention in any way. Furthermore, the shapes and proportions of the components in the drawings are merely schematic to aid in understanding the invention and do not specifically limit the shapes and proportions of the components. In the drawings:

[0029] Figure 1 This is a schematic diagram of the overall structure of a battery cathode material loose packing density detection device in Example 1;

[0030] Figure 2 This is a cross-sectional view of the main structure of a battery cathode material loose packing density detection device in Example 1;

[0031] Figure 3 This is a schematic diagram of the detection component structure of a battery cathode material loose packing density detection device in Example 1;

[0032] Figure 4 This is a schematic diagram of the leveling component structure of a battery cathode material loose packing density detection device in Example 1;

[0033] Figure 5 This is a schematic diagram of the vibration component structure of a battery cathode material loose packing density detection device in Example 1.

[0034] The components include: 1. Device housing; 11. Collection trough; 12. Guide trough; 13. Discharge hole; 21. Support; 22. Fixing rod; 23. Scraper; 31. Guide rod; 32. Fixing baffle; 33. Guide groove; 34. Slider; 35. Electric slider; 36. Support plate; 37. Weighing module; 38. Measuring cylinder; 39. Multi-section plate; 41. Motor; 42. First rotating rod; 43. First striking block; 44. Worm gear; 45. Turbine; 46. Second rotating rod; 47. Second striking block. Detailed Implementation

[0035] To enable those skilled in the art to better understand the technical solutions of this utility model, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort should fall within the protection scope of this utility model.

[0036] It should be noted that when an element is referred to as being "set on" another element, it can be directly on the other element or there may be an intervening element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only embodiments.

[0037] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0038] Example 1

[0039] like Figure 1 As shown, this embodiment provides a device for detecting the loose packing density of positive electrode material for batteries, including a device housing 1 and guide rods 31, detection components, multi-section plates 39, sliders 34, fixed baffles 32, and a material guide trough 12 disposed within the device housing 1; the detection components include sliders 34, support plates 36, measuring cylinders 38, and weighing modules 37, with each pair of sliders 34 connected by support plates 36, and measuring cylinders 38 and weighing modules 37 located below measuring cylinders 38 disposed in the middle of support plates 36; the guide rods 31 are arranged in pairs in parallel to form a track, each guide rod 31 is bent to form an open ring, and the two ends of the guide rods 31 are respectively fixedly connected to the inner wall of the device housing 1 by fixed baffles 32, and the guide rods 31 are slidably connected to the sliders 34; the detection components are connected to another detection component through the bendable multi-section plates 39; at least one slider 34 is an electric slider 35; a material guide trough 12 is disposed within the device housing 1, and a discharge port is opened at the bottom of the material guide trough 12.

[0040] Specifically, such as Figure 1 and 2As shown, the device housing 1 is a sealed structure to prevent the positive electrode material powder from flying out of the sealed space. A material guide trough 12 is provided on the top of the device housing 1, and a discharge hole 13 is provided at the bottom of the material guide trough 12. A detection component is provided above the material guide trough 12 in the device housing 1, and a vibration component is provided inside the device housing 1 at the bottom of the material guide trough 12.

[0041] Specifically, such as Figure 3 As shown, the detection component includes two symmetrically arranged guide rods 31. Fixed baffles 32 are fixedly connected to both ends of the guide rods 31. The fixed baffles 32 are fixedly connected to the device housing 1. Guide grooves 33 are correspondingly arranged below the guide rods 31. Slider blocks 34 are slidably connected to the outer wall of the guide rods 31. Multi-section plates 39 are fixedly connected to the side of the sliders 34 that are close to each other. The multi-section plates 39 are slidably connected within the inner cavity formed by the guide grooves 33. A support plate 36 is fixedly connected between the sliders 34 arranged side by side on the two guide rods 31. A weighing module 37 is fixedly connected to the middle of the support plate 36. A measuring cylinder 38 is fixedly connected to the upper part of the weighing module 37.

[0042] The feed trough 12 is made of an elastic material.

[0043] The annular structure of the guide rod 31 includes a long straight section, a curved section connected to both sides of the long straight section, and a short straight section extending from the other side of the curved section.

[0044] The multi-section plate 39 is slidably connected to the guide rod 31.

[0045] The loose packing density detection device for positive electrode material of battery in this embodiment also includes a leveling component; the leveling component includes a bracket 21, a fixing rod 22 and a scraper 23; the bracket 21 is arranged horizontally above the guide rod 31, and the middle of the bracket 21 is connected to the scraper 23 through the fixing rod 22, and the scraper 23 is flush with the upper surface of the measuring cylinder 38.

[0046] Specifically, such as Figure 4 As shown, the leveling assembly includes a bracket 21, which is fixed on both sides of the upper middle part of the device housing 1. A fixing rod 22 is fixedly connected to the bottom of the middle part of the bracket 21, and a scraper 23 is fixedly connected to the bottom end of the fixing rod 22. The scraper 23 can form a sliding contact with the upper part of the measuring cylinder 38.

[0047] The loose packing density detection device for positive electrode material of batteries in this embodiment also includes a vibration assembly; the vibration assembly includes a first rotating rod 42, a first striking block 43, a worm 44, a worm wheel, a second rotating rod 46, a second striking block 47, and a motor 41; the first rotating rod 42 and the worm 44 are coaxially connected and are arranged alternately parallel to the length direction of the guide rod 31, and both penetrate the inner cavity of the device housing 1 and are connected to the slotted bearing opened on the inner wall, the distance between adjacent worms 44 is slightly greater than the length of the opening; the worm 44 is meshing with a turbine 45 set on the second rotating rod 46, and a second striking block 47 is set at one end of the second rotating rod 46; the first striking blocks 43 are evenly distributed on the first rotating rod 42; one side of the first rotating rod 42 is driven by the motor 41.

[0048] The first striking block 43 is a cam structure. When the first striking block 43 rotates with the first rotating rod 42, the protrusion of the first striking block 43 will contact the wall of the guide groove 12 to form a squeeze.

[0049] The second striking block 47 is a cam structure. When the second striking block 47 rotates with the second rotating rod 46, the protrusion of the second striking block 47 will be squeezed when it contacts the guide rod 31.

[0050] The upper part of the cam structure of the second striking block 47 is provided with a tapered smooth slope.

[0051] The vibration assembly is located below the feed chute 12.

[0052] Specifically, such as Figure 5 As shown, the vibration assembly includes a motor 41, which is located on one side of the device housing 1. A first rotating rod 42 is connected to the side of the motor 41 closest to the device housing 1. The first rotating rod 42 rotates through the device housing 1. The portion of the first rotating rod 42 located inside the device housing 1 is equidistantly connected to first striking blocks 43. Both ends of the first rotating rod 42 located inside the device housing 1 are fixedly connected to worm gears 44. The vibration assembly also includes a second rotating rod 46, which is arranged correspondingly to the guide trough 12. Multiple second rotating rods 46 are located on one side of the worm gears 44. A worm wheel is fixedly connected to the second rotating rod 46, and the worm wheel meshes with the worm gears 44. A second striking block 47 is fixedly connected to the top of the second rotating rod 46. The second striking block 47 can form a sliding contact with the measuring cylinder 38 in the flipped state.

[0053] Example 2

[0054] The difference between this embodiment and Embodiment 1 is that:

[0055] The feed trough 12 is funnel-shaped and is arranged corresponding to the guide rod 31.

[0056] A collection trough 11 corresponding to the discharge port is provided on the device housing 1, and the collection trough 11 is connected to the discharge port 13.

[0057] The feed trough 12 is funnel-shaped and arranged corresponding to the guide rod 31. The funnel-shaped design can collect materials. After the positive electrode material enters the feed trough 12 from above, it can flow more concentratedly into the measuring cylinder 38 under the guidance of the funnel shape, reducing the scattering and waste of materials during the conveying process, improving the utilization rate of materials, and also enabling the materials to enter the measuring cylinder 38 more accurately, ensuring the smooth progress of the test.

[0058] A collection trough 11 is provided on the device housing 1 to facilitate the collection of excess or weighed positive electrode material powder by staff outside the device housing 1.

[0059] The working principle of this utility model:

[0060] First, the staff adds the material into the measuring cylinder 38. When the measuring cylinder 38 is full of powder, the electric slider 35 is started to move along the guide rod 31. The electric slider 35 drives the multi-section plate 39 to move, and the multi-section plate 39 drives another slider 34 to move.

[0061] At this time, the measuring cylinder 38 filled with powder passes through the scraper 23. The measuring cylinder 38 without powder gradually moves to the powder filling position. When the measuring cylinder 38 filled with powder passes through the scraper 23, the scraper 23 scrapes the powder at the top of the measuring cylinder 38, making the powder level with the top of the measuring cylinder 38. The excess powder falls onto the guide trough 12 and is finally discharged and recycled through the discharge hole 13.

[0062] Then, the measuring cylinder 38 stops via the scraper 23, and the weight is measured via the support plate 36. After weighing, the electric slider 35 moves, causing the measuring cylinder 38 filled with powder to gradually tilt downwards as the guide rod 31 bends, allowing the powder to fall onto the guide trough 12 for collection. Meanwhile, another measuring cylinder 38 is at the powder filling point for powder addition, thus achieving continuous detection and improving work efficiency. When discharging, some powder will adhere to the inner wall of the measuring cylinder 38 and the inner surface of the guide trough 12. The starting motor 41 drives the first rotating rod 42 to rotate. The first rotating rod 42 drives the first striking block 43 and the worm gear 44 to rotate. The first striking block 43 strikes the bottom of the guide trough 12, causing the guide trough 12 to vibrate, thereby causing the powder adhering to the surface of the guide trough 12 to slide into the discharge hole 13 for collection. The rotation of the worm gear 44 drives the worm wheel to rotate, and the worm wheel drives the second rotating rod 46 to rotate. The second rotating rod 46 drives the second striking block 47 to rotate, and the second striking block 47 vibrates the discharge measuring cylinder 38, causing the powder adhering to the inner wall of the measuring cylinder 38 to detach, thereby avoiding affecting the next test of the measuring cylinder 38.

[0063] The technical effects and advantages of this utility model are as follows:

[0064] 1. By setting up an electric slider 35, guide rod 31 and push rod, the positive electrode material to be tested can be automatically scraped, tested and recycled after the powder test is completed. The staff does not need to take out the measuring cylinder 38 for cleaning, which realizes continuous testing of samples, improves the user experience of the staff and reduces the number of operation steps of the staff.

[0065] 2. By incorporating a worm gear, worm 44, and striking block, the fine powder is prevented from sticking to the measuring cylinder 38 and the movable plate, ensuring testing accuracy and providing a good working environment for staff, thereby further improving work efficiency.

[0066] The above embodiments are merely one of the implementation methods to achieve the technical solution of this utility model. The scope of protection claimed by this utility model is not limited to this embodiment, but also includes any variations, substitutions and other implementation methods that can be easily conceived by those skilled in the art within the scope of the technology disclosed in this utility model.

Claims

1. A device for detecting the loose packing density of positive electrode material for batteries, characterized in that, The device includes a housing and guide rods, detection components, multi-section plates, sliders, fixed baffles, and a material guide trough disposed within the housing. The detection components include sliders, support plates, measuring cylinders, and weighing modules. Each pair of sliders is connected by a support plate, with a measuring cylinder and a weighing module located below it in the middle of the support plate. The guide rods are arranged in pairs in parallel to form a track, each guide rod bent to form an open loop. Both ends of the guide rods are fixedly connected to the inner wall of the housing via fixed baffles, and the guide rods are slidably connected to the sliders. Each detection component is connected to another detection component via a bendable multi-section plate. At least one slider is an electrically operated slider. A material guide trough is disposed within the housing, with a discharge port at its bottom.

2. The battery positive electrode material loose packing density detection device according to claim 1, characterized in that, It also includes a leveling assembly; the leveling assembly includes a bracket, a fixing rod and a scraper; the bracket is arranged horizontally above the guide rod, and the scraper is connected to the middle of the bracket through the fixing rod, and the scraper is flush with the upper surface of the measuring cylinder.

3. The battery positive electrode material loose packing density detection device according to claim 2, characterized in that, It also includes a vibration assembly; the vibration assembly includes a first rotating rod, a first striking block, a worm, a worm wheel, a second rotating rod, a second striking block, and a motor; the first rotating rod and the worm are coaxially connected, and are arranged alternately parallel to the length direction of the guide rod, both penetrating the inner cavity of the device housing and connected to a slotted bearing on the inner wall, the distance between adjacent worms being slightly greater than the length of the opening; the worm is connected to a turbine gear set on the second rotating rod, and a second striking block is set at one end of the second rotating rod; the first striking blocks are evenly distributed on the first rotating rod; one side of the first rotating rod is driven by a motor.

4. The battery positive electrode material loose packing density detection device according to claim 3, characterized in that, The vibration assembly is located below the feed chute.

5. The battery positive electrode material loose packing density detection device according to claim 3, characterized in that, The first striking block has a cam structure, and when the protrusion of the first striking block contacts the wall of the guide groove, it will cause extrusion.

6. The battery positive electrode material loose packing density detection device according to claim 4, characterized in that, The second striking block has a cam structure, and when the protrusion of the second striking block contacts the guide rod, it will cause compression.

7. The battery positive electrode material loose packing density detection device according to claim 5, characterized in that, The feed trough is made of a flexible material.

8. The battery positive electrode material loose packing density detection device according to claim 6, characterized in that, The upper part of the cam structure of the second striking block is provided with a tapered smooth slope.

9. The battery positive electrode material loose packing density detection device according to claim 1, characterized in that, The annular structure of the guide rod includes a long straight section, a curved section connecting both sides of the long straight section, and a short straight section extending from the other side of the curved section.

10. The battery positive electrode material loose packing density detection device according to claim 1, characterized in that, The multi-section plate is slidably connected to the guide rod.

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