Negative electrode material high-density forming device based on vibration prepressing

Abstract

The utility model belongs to the technical field of cathode material manufacturing, and particularly relates to a cathode material high-density forming device based on vibration prepressing, which comprises a vibration base, a lower frame fixedly connected to the upper side of the vibration base, and a plurality of lower dies fixedly connected to the lower side of the lower frame in a rectangular array. First electric telescopic rods are fixedly connected to the two sides of the lower frame correspondingly, piston rods of the two first electric telescopic rods are fixedly connected with a bottom plate located on the lower side of the lower mold, a plurality of supporting blocks matched with the lower mold are fixedly connected to the upper side of the bottom plate, the supporting blocks are slidably connected into the lower mold, and an upper support is fixedly connected to the upper side of the lower frame. The upper side of the upper support is fixedly connected with a second electric telescopic rod, and a piston rod of the second electric telescopic rod is fixedly connected with an upper plate body located on the upper side of the lower frame. According to the utility model, gaps between negative electrode materials can be reduced through vibration prepressing, and the density of the negative electrode materials is improved.

Description

Technical Field

[0001] This utility model belongs to the field of negative electrode material manufacturing technology, specifically relating to a high-density molding device for negative electrode materials based on vibration pre-compression. Background Technology

[0002] In modern battery technology, the performance of the anode material plays a crucial role in the overall battery performance. With the miniaturization and high performance of electronic devices, and the increasing demand for high-energy-density batteries in the electric vehicle market, high-density molding of anode materials has become a key research and production focus. Traditional anode material molding methods, such as simple pressing or conventional vibration molding, are insufficient to effectively reduce internal gaps in the material, resulting in lower anode material density and consequently affecting the battery's energy density and charge / discharge performance. For example, when using ordinary pressing processes, the anode material particles are not tightly packed, resulting in more voids. This lengthens the diffusion path of lithium ions within the electrode material, reducing the battery's charge / discharge efficiency. Utility Model Content

[0003] The purpose of this invention is to provide a high-density molding device for negative electrode materials based on vibration preloading, which can reduce the gaps between negative electrode materials and increase the density of negative electrode materials through vibration preloading.

[0004] The specific technical solution adopted by this utility model is as follows:

[0005] A high-density molding device for negative electrode materials based on vibration preloading includes a vibration base, a lower frame fixedly connected to the upper side of the vibration base, a plurality of lower molds arranged in a rectangular array fixedly connected to the lower side of the lower frame, first electric telescopic rods fixedly connected to both sides of the lower frame, piston rods of two first electric telescopic rods fixedly connected to a base plate located below the lower molds, and a plurality of support blocks adapted to the lower molds fixedly connected to the upper side of the base plate, the support blocks being slidably connected inside the lower molds;

[0006] An upper bracket is fixedly connected to the upper side of the lower frame, and a second electric telescopic rod is fixedly connected to the upper side of the upper bracket. An upper plate located on the upper side of the lower frame is fixedly connected to the piston rod of the second electric telescopic rod, and multiple upper pressure blocks adapted to the lower mold are fixed to the lower side of the upper plate.

[0007] Furthermore, a second drive motor is fixedly connected to the lower side of the base plate, and a threaded rod that is threadedly connected to the support block is fixedly connected to the output end of the second drive motor.

[0008] Furthermore, the vibration base includes a sliding base, a movable slide plate is slidably connected inside the sliding base, a connecting plate is fixedly connected to the upper side of the movable slide plate, the connecting plate is fixedly connected to the lower frame, a first drive motor is fixedly connected to the outer side of the sliding base, a rotating rod located under the movable slide plate is fixedly connected to the output end of the first drive motor, the rotating rod is rotatably connected to the sliding base, and a protrusion is fixedly connected to the outer side of the rotating rod.

[0009] Furthermore, a vertical rod is fixedly connected inside the sliding base, the movable slide plate is slidably connected to the outside of the vertical rod, and a return spring is sleeved on the outside of the vertical rod.

[0010] Furthermore, the protrusion includes a sleeve fixedly connected to the rotating rod, a sliding rod slidably connected inside the sleeve, a third drive motor fixedly connected to one end of the sleeve, and a threaded rod II located inside the sleeve fixedly connected to the output end of the third drive motor, the threaded rod II and the sliding rod being threadedly connected.

[0011] The technical effects achieved by this utility model are as follows:

[0012] This invention relates to a high-density molding device for negative electrode materials based on vibration pre-compression. The device uses a vibration base to pre-compress the negative electrode material, and then applies pressure to the negative electrode material through an upper pressure block. This allows the negative electrode material to be molded under pressure. Furthermore, vibration pre-compression can reduce the gaps between negative electrode materials and increase the density of the negative electrode material, thus enabling high-density molding of the negative electrode material. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of this utility model;

[0014] Figure 2 This is a cross-sectional structural diagram of the present invention;

[0015] Figure 3 This is a side view of the cross-sectional structure of this utility model;

[0016] Figure 4 This is a cross-sectional structural diagram of the protrusion of this utility model.

[0017] The attached diagram lists the components represented by each number as follows:

[0018] 1. Slide seat; 2. Movable slide plate; 3. First drive motor; 4. Rotating rod; 5. Upright pole; 6. Return spring; 7. Connecting plate; 8. Lower frame; 9. Lower mold; 10. First electric telescopic rod; 11. Base plate; 12. Support block; 13. Second drive motor; 14. Threaded rod one; 15. Upper bracket; 16. Second electric telescopic rod; 17. Upper plate; 18. Upper pressure block; 19. Sleeve; 20. Slide rod; 21. U-shaped frame; 22. Rotating wheel; 23. Third drive motor; 24. Threaded rod two. Detailed Implementation

[0019] To make the objectives and advantages of this utility model clearer, the following detailed description is provided in conjunction with embodiments. It should be understood that the following text is merely used to describe one or more specific embodiments of this utility model and does not strictly limit the scope of protection specifically claimed by this utility model.

[0020] like Figures 1-4 As shown, a high-density molding device for negative electrode materials based on vibration preloading includes a vibration base. A lower frame 8 is fixedly connected to the upper side of the vibration base. Multiple lower molds 9 arranged in a rectangular array are fixedly connected to the lower side of the lower frame 8. First electric telescopic rods 10 are fixedly connected to both sides of the lower frame 8. The piston rods of the two first electric telescopic rods 10 are fixedly connected to a base plate 11 located below the lower mold 9. Multiple support blocks 12 adapted to the lower mold 9 are fixedly connected to the upper side of the base plate 11. The support blocks 12 are slidably connected inside the lower mold 9. At this time, the lower mold 9 and the support blocks 12 form a molding cavity inside the lower mold 9 and located above the support blocks 12. After the negative electrode material is shaped inside the molding cavity, the support blocks 12 can be raised by activating the first electric telescopic rods 10 to push the negative electrode material out from inside the molding cavity, thus completing the discharge.

[0021] like Figures 2-3 As shown, the support block 12 can be directly fixed to the base plate 11 or it can be set separately from the base plate 11. In this technical solution, a second drive motor 13 is fixedly connected to the lower side of the base plate 11. The output end of the second drive motor 13 is fixedly connected to a threaded rod 14 that is threadedly connected to the support block 12. At this time, by starting the second drive motor 13, the height of the corresponding support block 12 can be independently adjusted, thereby independently controlling the height of multiple molding cavities and controlling the thickness of the negative electrode material.

[0022] An upper bracket 15 is fixedly connected to the upper side of the lower frame 8. A second electric telescopic rod 16 is fixedly connected to the upper side of the upper bracket 15. An upper plate 17 located on the upper side of the lower frame 8 is fixedly connected to the piston rod of the second electric telescopic rod 16. Multiple upper pressure blocks 18 adapted to the lower mold 9 are fixed to the lower side of the upper plate 17. When the negative electrode material enters the lower mold 9, the upper pressure blocks 18 can be lowered by activating the second electric telescopic rod 16, so that the upper pressure blocks 18 fall into the lower mold 9 to pressurize the negative electrode material inside the molding cavity.

[0023] Among them, such as Figures 1-3 As shown, the vibration base includes a sliding base 1, with a movable slide plate 2 slidably connected inside the sliding base 1. A connecting plate 7 is fixedly connected to the upper side of the movable slide plate 2, and the connecting plate 7 is fixedly connected to the lower frame 8. At least one first drive motor 3 is fixedly connected to the outer side of the sliding base 1. A rotating rod 4 located below the movable slide plate 2 is fixedly connected to the output end of the first drive motor 3. The rotating rod 4 is rotatably connected to the sliding base 1, and a protrusion is fixedly connected to the outer side of the rotating rod 4. At this time, by starting the first drive motor 3, the rotating rod 4 is driven to rotate. During the rotation of the rotating rod 4, when the protrusion contacts the movable slide plate 2, the protrusion on the rotating rod 4 can push the movable slide plate 2 upward. When the protrusion separates from the movable slide plate 2, the movable slide plate 2 automatically falls under the action of gravity, thereby driving the lower frame 8 to repeatedly move up and down through the movable slide plate 2, so that the negative electrode material inside the molding cavity is vibrated and pre-compressed.

[0024] The sliding base 1 is internally fixedly connected to a vertical rod 5, and the movable slide plate 2 is slidably connected to the outside of the vertical rod 5. The vertical rod 5 can guide the movable slide plate 2 to slide, thereby improving stability.

[0025] A return spring 6 is sleeved on the outside of the upright 5. The return spring 6 can buffer the falling movable slide plate 2 and reduce the impact force exerted by the movable slide plate 2 on the rotating rod 4.

[0026] The protrusion can be a cam, or it can be like... Figures 2-4 As shown, the protrusion includes a sleeve 19 fixedly connected to the rotating rod 4. A sliding rod 20 is slidably connected inside the sleeve 19. A third drive motor 23 is fixedly connected to one end of the sleeve 19. A threaded rod 24 located inside the sleeve 19 is fixedly connected to the output end of the third drive motor 23. The threaded rod 24 and the sliding rod 20 are threadedly connected. The third drive motor 23 can be powered by a conductive slip ring. By starting the third drive motor 23, the threaded rod 24 can be driven to rotate. When the threaded rod 24 rotates, it will control the sliding rod 20 to extend and retract. When the extension and retraction length of the protrusion changes, the height at which the protrusion lifts the movable slide plate 2 can be controlled.

[0027] One end of the slide bar 20 is fixedly connected to a U-shaped frame 21, and a rotating wheel 22 is rotatably connected to the U-shaped frame 21. The rotating wheel 22 can reduce wear.

[0028] The above description is merely a preferred embodiment of this utility model. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principle of this utility model, and these improvements and modifications should also be considered within the scope of protection of this utility model. Structures, devices, and operating methods not specifically described or explained in this utility model, unless otherwise specified or limited, shall be implemented using conventional methods in the field.

Claims

1. A high-density molding device for negative electrode materials based on vibration preloading, characterized in that: The device includes a vibration base, a lower frame (8) fixedly connected to the upper side of the vibration base, a plurality of lower molds (9) arranged in a rectangular array fixedly connected to the lower side of the lower frame (8), a first electric telescopic rod (10) fixedly connected to both sides of the lower frame (8), the piston rods of the two first electric telescopic rods (10) fixedly connected to a base plate (11) located below the lower mold (9), a plurality of support blocks (12) adapted to the lower mold (9) fixedly connected to the upper side of the base plate (11), and the support blocks (12) slidably connected inside the lower mold (9); The upper side of the lower frame (8) is fixedly connected to an upper bracket (15), and the upper side of the upper bracket (15) is fixedly connected to a second electric telescopic rod (16). The piston rod of the second electric telescopic rod (16) is fixedly connected to an upper plate (17) located on the upper side of the lower frame (8). The lower side of the upper plate (17) is fixed with multiple upper pressure blocks (18) that are compatible with the lower mold (9).

2. The high-density molding device for negative electrode materials based on vibration preloading according to claim 1, characterized in that: A second drive motor (13) is fixedly connected to the lower side of the base plate (11), and a threaded rod (14) that is threadedly connected to the support block (12) is fixedly connected to the output end of the second drive motor (13).

3. The high-density molding device for negative electrode materials based on vibration preloading according to claim 1, characterized in that: The vibration base includes a sliding base (1), a movable slide plate (2) is slidably connected inside the sliding base (1), a connecting plate (7) is fixedly connected to the upper side of the movable slide plate (2), the connecting plate (7) is fixedly connected to the lower frame (8), a first drive motor (3) is fixedly connected to the outer side of the sliding base (1), a rotating rod (4) located under the movable slide plate (2) is fixedly connected to the output end of the first drive motor (3), the rotating rod (4) is rotatably connected to the sliding base (1), and a protrusion is fixedly connected to the outer side of the rotating rod (4).

4. The high-density molding device for negative electrode materials based on vibration preloading according to claim 3, characterized in that: The sliding seat (1) is fixedly connected to the inside of the upright (5), the movable slide plate (2) is slidably connected to the outside of the upright (5), and a return spring (6) is sleeved on the outside of the upright (5).

5. The high-density molding apparatus for negative electrode materials based on vibration preloading according to claim 3, characterized in that: The protrusion includes a sleeve (19) fixedly connected to the rotating rod (4). A sliding rod (20) is slidably connected inside the sleeve (19). A third drive motor (23) is fixedly connected to one end of the sleeve (19). A threaded rod (24) located inside the sleeve (19) is fixedly connected to the output end of the third drive motor (23). The threaded rod (24) and the sliding rod (20) are threadedly connected.

6. The high-density molding apparatus for negative electrode materials based on vibration preloading according to claim 5, characterized in that: One end of the slide bar (20) is fixedly connected to a U-shaped frame (21), and a rotating wheel (22) is rotatably connected to the U-shaped frame (21).

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