Screening device for graphite negative electrode powder production

Abstract

The utility model discloses a screening device for graphite negative electrode powder production, and relates to the technical field of graphite negative electrode powder production. The device comprises a bottom plate, an external support is fixedly installed at the top end of the bottom plate, an internal support is fixedly installed in the middle of the top end of the bottom plate, a uniform discharging device is arranged at the top end of the external support, a screening device and a cleaning device are arranged on the internal support, and the cleaning device comprises two symmetrically-distributed second fixing blocks. The second fixing block is fixedly mounted at the top end of the bottom plate, and a third rotating shaft is rotationally mounted on the second fixing block; by arranging the cleaning device, the third rotating rod drives the cleaning brush to move on the screening frame in a reciprocating mode through the sliding guide frame, the screening frame is cleaned through the cleaning brush, the effect of cleaning the screening frame is achieved through the operation, and it is avoided that fine particles or viscous substances contained in graphite powder are gathered, and a screen is blocked; the screening effect and the production efficiency are influenced.

Description

Technical Field

[0001] The utility model relates to the technical field of graphite negative electrode powder production, in particular to a screening device for graphite negative electrode powder production. Background Art

[0002] Graphite anode powder is an important battery material, usually used for the negative electrode of lithium-ion batteries. Graphite anode powder has the characteristics of good conductivity, high cycle stability, and high capacity retention rate. It is one of the key raw materials for manufacturing high-performance lithium-ion batteries.

[0003] During the production process of graphite negative electrode powder, graphite particles need to be ground and then screened. Fine particles and sticky substances contained in the graphite negative electrode powder will adhere to the screen during the screening process. If not cleaned in time, the screen will be blocked, affecting the subsequent screening efficiency. Secondly, graphite powder will accumulate during the feeding process. The accumulation of graphite powder will cause the screen to be blocked and thus affect the screening efficiency. In view of the above problems, the inventor proposes a screening device for graphite negative electrode powder production to solve the above problems. Utility Model Content

[0004] In order to solve the problem of cleaning the sieve and uniformly feeding the graphite powder to avoid clogging of the sieve during the production of graphite negative electrode powder, the utility model aims to provide a screening device for the production of graphite negative electrode powder.

[0005] In order to solve the above technical problems, the utility model adopts the following technical solutions: a screening device for graphite negative electrode powder production, comprising a bottom plate, an external bracket is fixedly installed on the top of the bottom plate, an internal bracket is fixedly installed in the middle of the top of the bottom plate, a uniform feeding device is provided on the top of the external bracket, and a screening device and a cleaning device are provided on the internal bracket;

[0006] The cleaning device includes two symmetrically distributed No. 2 fixed blocks, the No. 2 fixed blocks are fixedly installed on the top of the bottom plate, a No. 3 rotating shaft is rotatably installed on the No. 2 fixed block, a No. 3 rotating rod is fixedly installed on the outer wall of the No. 3 rotating shaft, a sliding guide frame is slidably provided on the internal bracket, and the No. 3 rotating rod and the sliding guide frame are slidably connected, two symmetrically distributed electric telescopic rods are fixedly installed on the bottom end of the sliding guide frame, and a cleaning brush is fixedly installed on the bottom end of the electric telescopic rod.

[0007] Preferably, the uniform feeding device includes two symmetrically distributed guide rods, the guide rods are fixedly mounted on the top of the external bracket, a feeding frame is slidably mounted on the guide rods, a No. 1 rotating shaft is rotatably mounted on the external bracket, a No. 1 rotating rod is fixedly mounted on the outer wall of the No. 1 rotating shaft, a No. 1 connecting rod is rotatably mounted on the other end of the No. 1 rotating rod, and the other end of the No. 1 connecting rod is rotatably connected to the feeding frame.

[0008] Preferably, the screening device includes two symmetrically distributed No. 2 slide rails, the No. 2 slide rails are fixedly mounted on the internal bracket, a screening frame is slidably provided on the No. 2 slide rails, a No. 1 fixed block is fixedly mounted in the external bracket, a No. 2 rotating shaft is rotatably mounted on the No. 1 fixed block, a No. 2 rotating rod is fixedly mounted on the outer wall of the No. 2 rotating shaft, a No. 2 connecting rod is rotatably mounted on the other end of the No. 2 rotating rod, and the other end of the No. 2 connecting rod is rotatably connected to the screening frame.

[0009] Preferably, a pulley No. 1 is rotatably mounted on the unloading frame, a slide rail No. 1 used in conjunction with the pulley No. 1 is fixedly mounted on the top of the external bracket, and the pulley No. 1 and the slide rail No. 1 are slidably connected, a drive motor No. 1 is fixedly mounted on the external bracket, and the drive end of the drive motor No. 1 and the rotating shaft No. 1 are transmission connected via a pulley transmission group.

[0010] Preferably, a No. 2 pulley is rotatably mounted on the screening frame, and the No. 2 pulley is slidably connected to the No. 2 slide rail, a No. 2 driving motor is fixedly mounted on the internal bracket, and the driving end of the No. 2 driving motor and the No. 2 rotating shaft are transmission connected via a pulley transmission group.

[0011] Preferably, a transmission shaft is rotatably mounted on the internal bracket, and the No. 3 rotating shaft and the transmission shaft are connected via a synchronous wheel transmission group, a No. 3 driving motor is fixedly mounted on the top of the base plate, and the driving end of the No. 3 driving motor and the transmission shaft are connected via a pulley transmission group.

[0012] Preferably, a collecting frame is slidably provided on the top of the bottom plate.

[0013] Compared with the prior art, the beneficial effects of the present invention are:

[0014] 1. The utility model sets a cleaning device so that the No. 3 rotating rod drives the cleaning brush to move back and forth on the screening frame through the sliding guide frame, and the screening frame is cleaned by the cleaning brush. The above operation achieves the effect of cleaning the screening frame, avoiding the aggregation of fine particles or sticky substances contained in the graphite powder, causing the screen to be blocked, and affecting the screening effect and production efficiency;

[0015] 2. The utility model provides a uniform feeding device, so that the No. 1 rotating shaft drives the feeding frame to reciprocate through the No. 1 rotating rod and the No. 1 connecting rod. The graphite powder is evenly spread on the screening frame through the reciprocating movement of the feeding frame. The effect of uniform feeding of the graphite negative electrode powder is achieved through the above operation. The graphite powder is evenly spread on the screening frame, which can effectively avoid the accumulation of graphite powder and cause the screen to be blocked, thereby improving the screening efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0017] Figure 1 It is a schematic diagram of the structure of the utility model;

[0018] Figure 2 This is a schematic diagram of the overall dissected structure of the utility model;

[0019] Figure 3 It is a structural schematic diagram of the cleaning device in the utility model;

[0020] Figure 4 It is a structural schematic diagram of the uniform feeding device in the utility model;

[0021] Figure 5 It is a schematic diagram of the structure of the screening device in the utility model.

[0022] In the figure: 1, bottom plate; 2, external bracket; 3, internal bracket; 4, uniform feeding device; 401, guide rod; 402, feeding frame; 403, No. 1 rotating shaft; 404, No. 1 rotating rod; 405, No. 1 connecting rod; 406, No. 1 driving motor; 407, No. 1 slide rail; 408, No. 1 pulley; 5, screening device; 501, No. 2 slide rail; 502, screening frame; 503, No. 1 fixing block; 504, rotating shaft No. 2; 505, rotating rod No. 2; 506, connecting rod No. 2; 507, pulley No. 2; 508, collecting frame; 509, driving motor No. 2; 6, cleaning device; 601, fixing block No. 2; 602, rotating shaft No. 3; 603, rotating rod No. 3; 604, sliding guide frame; 605, electric telescopic rod; 606, cleaning brush; 607, transmission shaft; 608, driving motor No. 3. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0024] like Figure 1-5As shown, the utility model provides a screening device for graphite negative electrode powder production, comprising a bottom plate 1, an external bracket 2 is fixedly installed on the top of the bottom plate 1, an internal bracket 3 is fixedly installed in the middle of the top of the bottom plate 1, a uniform feeding device 4 is provided on the top of the external bracket 2, and a screening device 5 and a cleaning device 6 are provided on the internal bracket 3;

[0025] The cleaning device 6 includes two symmetrically distributed No. 2 fixed blocks 601, the No. 2 fixed blocks 601 are fixedly installed on the top of the base plate 1, a No. 3 rotating shaft 602 is rotatably installed on the No. 2 fixed block 601, a No. 3 rotating rod 603 is fixedly installed on the outer wall of the No. 3 rotating shaft 602, a sliding guide frame 604 is slidably provided on the internal bracket 3, and the No. 3 rotating rod 603 and the sliding guide frame 604 are slidably connected, and two symmetrically distributed electric telescopic rods 605 are fixedly installed on the bottom end of the sliding guide frame 604, and a cleaning brush 606 is fixedly installed on the bottom end of the electric telescopic rod 605.

[0026] By adopting the above technical solution, the third rotating rod 603 drives the cleaning brush 606 to move back and forth through the sliding guide frame 604.

[0027] The uniform feeding device 4 includes two symmetrically distributed guide rods 401, which are fixedly mounted on the top of the external bracket 2, and a feeding frame 402 is slidably mounted on the guide rods 401. A rotating shaft 403 is rotatably mounted on the external bracket 2, and a rotating rod 404 is fixedly mounted on the outer wall of the rotating shaft 403. A connecting rod 405 is rotatably mounted on the other end of the rotating rod 404, and the other end of the connecting rod 405 is rotatably connected to the feeding frame 402.

[0028] By adopting the above technical solution, the first rotating rod 404 drives the blanking frame 402 to reciprocate through the first connecting rod 405 .

[0029] The screening device 5 includes two symmetrically distributed No. 2 slide rails 501, the No. 2 slide rails 501 are fixedly installed on the internal bracket 3, a screening frame 502 is slidably provided on the No. 2 slide rails 501, a No. 1 fixed block 503 is fixedly installed in the external bracket 2, a No. 2 rotating shaft 504 is rotatably installed on the No. 1 fixed block 503, a No. 2 rotating shaft 504 is fixedly installed on the outer wall of the No. 2 rotating shaft 504, a No. 2 rotating rod 505 is fixedly installed on the other end of the No. 2 rotating rod 505, and a No. 2 connecting rod 506 is rotatably installed, and the other end of the No. 2 connecting rod 506 is rotatably connected to the screening frame 502.

[0030] By adopting the above technical solution, the second rotating rod 505 drives the screening frame 502 to move back and forth through the second connecting rod 506.

[0031] A pulley No. 1 408 is rotatably installed on the unloading frame 402, a slide rail No. 1 407 used in conjunction with the pulley No. 1 408 is fixedly installed on the top of the external bracket 2, and the pulley No. 1 408 and the slide rail No. 1 407 are slidably connected, a drive motor No. 1 406 is fixedly installed on the external bracket 2, and the driving end of the drive motor No. 1 406 and the rotating shaft No. 1 403 are connected through a pulley transmission group.

[0032] By adopting the above technical solution, the first driving motor 406 drives the first rotating shaft 403 to rotate.

[0033] A No. 2 pulley 507 is rotatably mounted on the screening frame 502, and the No. 2 pulley 507 is slidably connected to the No. 2 slide rail 501, a No. 2 driving motor 509 is fixedly mounted on the internal bracket 3, and the driving end of the No. 2 driving motor 509 is connected to the No. 2 rotating shaft 504 through a pulley transmission group.

[0034] By adopting the above technical solution, the second driving motor 509 drives the second rotating shaft 504 to rotate.

[0035] A transmission shaft 607 is rotatably mounted on the internal bracket 3, and the third rotating shaft 602 and the transmission shaft 607 are connected through a synchronous wheel transmission group. A third driving motor 608 is fixedly mounted on the top of the base plate 1, and the driving end of the third driving motor 608 and the transmission shaft 607 are connected through a pulley transmission group.

[0036] By adopting the above technical solution, the third driving motor 608 drives the transmission shaft 607 to rotate.

[0037] A collecting frame 508 is slidably disposed on the top of the bottom plate 1 .

[0038] By adopting the above technical solution, the filtered graphite negative electrode powder is collected through the collection frame 508.

[0039] Working principle: First, pour the graphite negative electrode powder to be screened into the unloading frame 402, and then synchronously control the start of the No. 1 drive motor 406 and the No. 2 drive motor 509, the No. 1 drive motor 406 drives the No. 1 rotating shaft 403 to rotate, the No. 1 rotating shaft 403 drives the unloading frame 402 to reciprocate through the No. 1 rotating rod 404 and the No. 1 connecting rod 405, and the graphite negative electrode powder is evenly spread on the screening frame 502 through the reciprocating movement of the unloading frame 402, the No. 2 drive motor 509 drives the No. 2 rotating shaft 504 to rotate, and the No. 2 rotating shaft 504 drives the No. 2 rotating rod 505 and the No. 2 connecting rod 405. 506 drives the screening frame 502 to move back and forth to screen the graphite negative electrode powder. After the screening is completed, the No. 3 driving motor 608 is controlled to be turned on. The No. 3 driving motor 608 drives the transmission shaft 607 to rotate. The transmission shaft 607 drives the No. 3 rotating shaft 602 to rotate through the synchronous wheel transmission group. The No. 3 rotating shaft 602 drives the cleaning brush 606 to move back and forth through the No. 3 rotating rod 603 and the sliding guide frame 604. At the same time, the electric telescopic rod 605 is controlled to be turned on. The electric telescopic rod 605 drives the cleaning brush 606 to move downward to contact the screening frame 502 to clean the screening frame 502.

[0040] Obviously, those skilled in the art can make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, if these modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include these modifications and variations.

Claims

1. A screening device for producing graphite negative electrode powder, comprising a bottom plate (1), characterized in that: An external bracket (2) is fixedly mounted on the top of the bottom plate (1), an internal bracket (3) is fixedly mounted in the middle of the top of the bottom plate (1), a uniform feeding device (4) is provided on the top of the external bracket (2), and a screening device (5) and a cleaning device (6) are provided on the internal bracket (3); The cleaning device (6) comprises two symmetrically distributed No. 2 fixed blocks (601), the No. 2 fixed blocks (601) are fixedly mounted on the top of the bottom plate (1), a No. 3 rotating shaft (602) is rotatably mounted on the No. 2 fixed blocks (601), a No. 3 rotating rod (603) is fixedly mounted on the outer wall of the No. 3 rotating shaft (602), a sliding guide frame (604) is slidably provided on the internal bracket (3), and the No. 3 rotating rod (603) and the sliding guide frame (604) are slidably connected, and two symmetrically distributed electric telescopic rods (605) are fixedly mounted on the bottom end of the sliding guide frame (604), and a cleaning brush (606) is fixedly mounted on the bottom end of the electric telescopic rod (605).

2. A screening device for producing graphite negative electrode powder according to claim 1, characterized in that: The uniform feeding device (4) comprises two symmetrically distributed guide rods (401), wherein the guide rods (401) are fixedly mounted on the top of the external bracket (2), a feeding frame (402) is slidably mounted on the guide rods (401), a No. 1 rotating shaft (403) is rotatably mounted on the external bracket (2), a No. 1 rotating rod (404) is fixedly mounted on the outer wall of the No. 1 rotating shaft (403), a No. 1 connecting rod (405) is rotatably mounted on the other end of the No. 1 rotating rod (404), and the other end of the No. 1 connecting rod (405) is rotatably connected to the feeding frame (402).

3. A screening device for producing graphite negative electrode powder according to claim 1, characterized in that: The screening device (5) comprises two symmetrically distributed No. 2 slide rails (501), the No. 2 slide rails (501) being fixedly mounted on the internal bracket (3), a screening frame (502) being slidably mounted on the No. 2 slide rails (501), a No. 1 fixed block (503) being fixedly mounted inside the external bracket (2), a No. 2 rotating shaft (504) being rotatably mounted on the No. 1 fixed block (503), a No. 2 rotating rod (505) being fixedly mounted on the outer wall of the No. 2 rotating shaft (504), a No. 2 connecting rod (506) being rotatably mounted on the other end of the No. 2 rotating rod (505), and the other end of the No. 2 connecting rod (506) being rotatably connected to the screening frame (502).

4. A screening device for producing graphite negative electrode powder according to claim 2, characterized in that: A pulley No. 1 (408) is rotatably mounted on the unloading frame (402), a slide rail No. 1 (407) used in conjunction with the pulley No. 1 (408) is fixedly mounted on the top of the external bracket (2), and the pulley No. 1 (408) and the slide rail No. 1 (407) are slidably connected, a drive motor No. 1 (406) is fixedly mounted on the external bracket (2), and a drive end of the drive motor No. 1 (406) and the rotating shaft No. 1 (403) are transmission-connected via a pulley transmission group.

5. A screening device for producing graphite negative electrode powder according to claim 3, characterized in that: A No. 2 pulley (507) is rotatably mounted on the screening frame (502), and the No. 2 pulley (507) is slidably connected to the No. 2 slide rail (501), a No. 2 driving motor (509) is fixedly mounted on the internal bracket (3), and the driving end of the No. 2 driving motor (509) and the No. 2 rotating shaft (504) are transmission-connected via a pulley transmission group.

6. A screening device for producing graphite negative electrode powder according to claim 1, characterized in that: A transmission shaft (607) is rotatably mounted on the internal bracket (3), and the third rotating shaft (602) and the transmission shaft (607) are connected in transmission via a synchronous wheel transmission group. A third driving motor (608) is fixedly mounted on the top of the bottom plate (1), and the driving end of the third driving motor (608) and the transmission shaft (607) are connected in transmission via a pulley transmission group.

7. A screening device for producing graphite negative electrode powder according to claim 1, characterized in that: A collecting frame (508) is slidably disposed on the top of the bottom plate (1).

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