Lithium battery graphite particle screening device

Abstract

The lithium battery graphite particle screening device comprises a machine box and a screening box, and the screening box is arranged in the machine box in a sliding mode; a feeding hole is formed in the top of the screening box; a plurality of screening assemblies are arranged in the screening box, the screening assemblies are sequentially arranged in the vertical direction, and the apertures of screening holes of the screening assemblies are linearly decreased progressively; a plurality of discharging covers matched with the screening assemblies are further arranged on the screening box, a plurality of discharging pipes are arranged on the machine box, and the discharging covers are inserted into the discharging pipes correspondingly; the screening device further comprises a driving module and a plurality of material guiding pipes, and the material guiding pipes are connected with the discharging pipes correspondingly. A storage hopper matched with the screening box is further arranged on the top of the machine box. The driving module is in power connection with the screening box, and the driving module pushes the screening box to do reciprocating motion in the machine box; compared with the prior art, synchronous screening of multiple graphite particles of different specifications is achieved through the multiple screening assemblies, the screening types are effectively increased, and the screening efficiency is improved.

Description

Technical Field

[0001] This application relates to the technical field of battery manufacturing equipment, and particularly relates to a lithium battery graphite particle screening device. Background Art

[0002] During the production process of lithium batteries, a large amount of graphite particles are required. In the prior art, the graphite particles are generally ground into powder first, and then screened into graphite raw materials with different particle sizes through a screening device. However, the screening devices in the prior art usually can only screen out 2 - 3 kinds of graphite fractions, and the types of screened graphite are few. More screening devices need to be equipped to further screen the materials. Content of the Utility Model

[0003] The main purpose of this application is to provide a lithium battery graphite particle screening device, aiming to solve the defect of few screening types in the prior art;

[0004] This application achieves the above purpose through the following technical solutions:

[0005] A lithium battery graphite particle screening device includes a chassis;

[0006] A screening box, the screening box is slidably arranged in the chassis; a feeding port is arranged at the top of the screening box; several screening components are arranged in the screening box, and along the vertical direction, each screening component is arranged in sequence, and the aperture of the sieve holes of each screening component decreases linearly; several discharge covers respectively adapted to each screening component are also arranged on the screening box, and several discharge pipes are arranged on the chassis, and each discharge cover is respectively inserted into each discharge pipe;

[0007] Several guide pipes, each guide pipe is respectively connected to each discharge pipe; a storage hopper adapted to the screening box is also arranged at the top of the chassis;

[0008] A driving module, the driving module is power - connected to the screening box, and the driving module pushes the screening box to reciprocate in the chassis.

[0009] Optionally, two mutually parallel slide rails are arranged in the chassis, the two slide rails are arranged along the length direction of the chassis, sliders are arranged on both slide rails, and each slider is respectively connected to the screening box.

[0010] Optionally, the screening component includes a sieve mesh and a connecting plate connected to each other; leakage holes adapted to the sieve mesh are arranged on the connecting plate; connecting strips are arranged on each inner wall of the screening box, and each connecting strip is connected to the connecting plate through a connecting bolt.

[0011] Optionally, the discharge hood is of a conical structure. The large end of the discharge hood is connected to the screening box, and a socket pipe is integrally connected to the small end of the discharge hood. The socket pipe is slidably inserted into the discharge pipe; the bottom surface of the connecting plate is flush with the bottom surface of the discharge hood.

[0012] Optionally, one side of the outlet end of the connecting plate is inclined downward, and the inclination angle of the connecting plate is 0.5° - 1.5°.

[0013] Optionally, the material guiding pipe includes a connecting sleeve and a material guiding hose connected to each other. The outlet end of the discharge pipe is threadedly connected to the connecting sleeve.

[0014] Optionally, the driving module includes a driving motor and an adjusting crankshaft. The adjusting crankshaft is rotatably arranged on the chassis, and the driving motor is power-connected to the adjusting crankshaft; a connecting rod is hinged to the screening box, and the connecting rod is hingedly connected to the adjusting crankshaft.

[0015] Optionally, two screening boxes are arranged in the chassis. Along the length direction of the chassis, the adjusting crankshaft is rotatably arranged in the middle of the chassis, and the two screening boxes are respectively arranged at both ends of the adjusting crankshaft; the adjusting crankshaft includes a main shaft and two connecting rod journals integrally connected; the two connecting rod journals are respectively arranged on both sides of the main shaft, and the two screening boxes are respectively connected to the two connecting rod journals through connecting rods.

[0016] Optionally, the storage hopper is of a conical structure. The outlet end of the storage hopper is connected to the chassis through a feeding pipe. An adjusting plate is slidably arranged on the feeding pipe, and a fastening screw is also threadedly connected to the feeding pipe. The fastening screw abuts against the adjusting plate.

[0017] Optionally, a support bar is arranged in the feeding pipe, and the support bar abuts against the bottom surface of the adjusting plate.

[0018] Compared with the prior art, the present application has the following beneficial effects:

[0019] The present application includes a chassis and a screening box. The screening box is slidably arranged in the chassis; a feeding port is arranged at the top of the screening box; a plurality of screening components are arranged in the screening box. Along the vertical direction, the screening components are arranged in sequence, and the aperture of the screening holes of each screening component decreases linearly; a plurality of discharge hoods respectively adapted to the screening components are also arranged on the screening box. A plurality of discharge pipes are arranged on the chassis, and each discharge hood is respectively inserted into each discharge pipe; the screening device further includes a driving module and a plurality of material guiding pipes, and each material guiding pipe is respectively connected to each discharge pipe; a storage hopper adapted to the screening box is further arranged at the top of the chassis; the driving module is power-connected to the screening box, and the driving module pushes the screening box to reciprocate in the chassis.

[0020] During use, the graphite particles to be screened enter the screening box through the feed inlet. The screening box is pushed to reciprocate in the chassis by the driving module. Since the aperture of the sieve holes of each screening component decreases linearly in the vertical direction, during the reciprocating movement, the graphite particles with the largest particle size will remain on the top screening component, and then remain on each screening component in turn according to the decreasing order of particle size; the graphite particles placed on each layer are discharged from the discharge cover and the discharge pipe during the reciprocating movement, and finally enter different containers through each guide pipe;

[0021] Compared with the prior art, the screening device of the present application is separated from the chassis. Therefore, during the screening process, feeding can be continuously carried out while discharging continuously, so as to realize continuous screening operation, which is beneficial to improving the screening efficiency;

[0022] Secondly, a plurality of screening components are arranged in the screening box of the present application, and the aperture of the sieve holes of each screening component is different. Therefore, the present application can realize the synchronous screening of graphite particles of multiple different specifications, effectively improving the screening types and the screening efficiency; at the same time, the present application can achieve the above functions through a set of equipment, and there is no need to purchase multiple sets of screening devices, which is beneficial to reducing the hardware cost. Description of the Drawings

[0023] Figure 1 It is a schematic structural diagram of a lithium battery graphite particle screening device provided by Embodiment 1 of the present application;

[0024] Figure 2 It is a cross-sectional view of a lithium battery graphite particle screening device provided by Embodiment 1 of the present application;

[0025] Figure 3 It is a top view of a lithium battery graphite particle screening device provided by Embodiment 1 of the present application;

[0026] Figure 4 It is a schematic structural diagram of another optional mode of a lithium battery graphite particle screening device provided by the present application;

[0027] Reference numerals: 1 - chassis, 2 - screening box, 3 - feed inlet, 4 - discharge cover, 5 - discharge pipe, 6 - guide pipe, 7 - storage hopper, 8 - slide rail, 9 - slider, 10 - screen mesh, 11 - connecting plate, 12 - leakage hole, 13 - connecting bar, 14 - connecting bolt, 15 - insertion pipe, 16 - driving motor, 17 - adjusting crankshaft, 18 - connecting rod, 19 - conveying pipe, 20 - adjusting plate, 21 - fastening screw, 22 - support bar, 601 - connecting sleeve, 602 - guide hose, 1701 - main shaft, 1702 - connecting rod journal.

[0028] The realization of the purpose, functional features and advantages of this application will be further described with reference to the embodiments and the accompanying drawings. Detailed implementation manners

[0029] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0030] It should be noted that all directional indications (such as up, down, left, right, front, back...) in the embodiments of the present utility model are only used to explain the relative positional relationship and movement conditions between components in a specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indications will also change accordingly.

[0031] In the present utility model, unless otherwise clearly defined and limited, terms such as "connection" and "fixation" should be understood in a broad sense. For example, "fixation" can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and can be the internal communication of two components or the interaction relationship between two components, unless otherwise clearly limited. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific situations.

[0032] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the present utility model, the descriptions of "first", "second", etc. are only for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the quantity of the indicated technical features. Thus, the features defined with "first" and "second" can explicitly or implicitly include at least one of such features. In addition, the meaning of "and / or" appearing throughout the text includes three parallel solutions. Taking "A and / or B" as an example, it includes solution A, solution B, or a solution that satisfies both A and B at the same time. In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the fact that those of ordinary skill in the art can implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the protection scope required by the present utility model.

[0033] Embodiment 1

[0034] Refer to Figures 1 to 3, As an alternative embodiment of the present application, this embodiment discloses a lithium battery graphite particle screening device, including a chassis 1 and a screening box 2. Two mutually parallel slide rails 8 are arranged inside the chassis 1. It should be noted that the two slide rails 8 are arranged along the length direction of the chassis 1, and the two slide rails 8 are respectively connected to the inner wall of the chassis 1. A plurality of sliders 9 are arranged on each of the two slide rails 8, and each slider 9 is respectively connected to the outer wall of the screening box 2, so as to realize the sliding connection between the screening box 2 and the chassis 1;

[0035] The slide rails 8 can also be arranged along the width direction of the chassis 1, but sufficient installation space needs to be reserved for other devices;

[0036] A storage hopper 7 is arranged on the top of the chassis 1. The storage hopper 7 is arranged in a conical structure, with its large head end as the feeding end and the feeding end being open. The small head end of the storage hopper 7 is the outlet end. The outlet end of the storage hopper 7 is connected to the chassis 1 through a feeding pipe 19. A plug-in slot is arranged on the feeding pipe 19, and an adjusting plate 20 is slidably arranged in the plug-in slot. The adjusting plate 20 is inserted into the feeding pipe 19 to control the size of the flow-through surface of the feeding pipe 19; A fastening screw 21 is also threadedly connected to the feeding pipe 19, and the fastening screw 21 abuts against the adjusting plate 20;

[0037] The position of the adjusting plate 20 can be effectively fixed through the fastening screw 21, avoiding its sliding during the working process and ensuring its stability and reliability;

[0038] A support bar 22 is arranged inside the feeding pipe 19, and the support bar 22 abuts against the bottom surface of the adjusting plate 20; Since a large amount of materials are piled up on the top surface of the adjusting plate 20, the support bar 22 can provide strong support for the adjusting plate 20, avoiding its bending under the action of the gravity of the materials, so as to ensure the flatness of the adjusting plate 20.

[0039] The feeding amount of graphite particles can be conveniently controlled through the adjusting plate 20, so as to improve the screening efficiency as much as possible while ensuring the screening quality.

[0040] A feeding port 3 is arranged on the top of the screening box 2. It should be noted that the size of the feeding port 3 needs to be large enough to ensure that no matter how the position of the screening box 2 changes, the feeding port 3 is always directly opposite to the outlet end of the storage hopper 7, so as to ensure the accuracy of feeding;

[0041] Furthermore, a guiding cloth bag can be arranged at the outlet end of the storage hopper 7, and the cloth bag is inserted into the inner wall of the screening box 2 to avoid the falling of materials.

[0042] In the vertical direction, several layers of connecting strips are sequentially arranged on the inner wall of the screening box 2, and several screening assemblies are also arranged in the screening box 2. Several screening assemblies are sequentially arranged along the height direction of the screening box 2, and the screening assembly includes a screen 10 and a connecting plate 11 connected to each other; the connecting plate 11 is provided with a leakage hole 12 adapted to the screen 10, and the connecting plate 11 is connected to the connecting strip 13 located on the same layer by a connecting bolt 14, so as to realize the connection between the screening assembly and the screening box 2;

[0043] It should be noted that the apertures of the screens 10 on the various screening assemblies are different, and along the vertical downward direction, the apertures of the screens 10 decrease linearly, that is, the aperture of the screen 10 at the top is the largest, and the aperture of the screen 10 at the bottom is the smallest;

[0044] Furthermore, a plurality of discharge pipes 5 are provided on the chassis 1, and the outlet end of each of the discharge pipes 5 is connected to a material guide pipe 6; the material guide pipe 6 comprises a connecting sleeve 601 and a material guide hose 602 connected to each other, wherein the connecting sleeve 601 is threadedly connected to the discharge pipe 5; the outlet end of the material guide hose 602 is located in the carrying container;

[0045] The inlet end of each discharge pipe 5 is connected to the internal space of the chassis 1; a plurality of discharge covers 4 are also arranged on the screening box 2, and the discharge covers 4 are arranged in sequence along the height direction of the screening box 2, and the discharge covers 4 are conical structures. The large end of the discharge cover 4 is connected to the screening box 2, and the small end of the discharge cover 4 is integrally connected with a plug-in tube 15, and the plug-in tube 15 is slidably inserted into the discharge pipe 5; the bottom surface of the connecting plate 11 is flush with the bottom surface of the discharge cover 4.

[0046] Furthermore, one side of the outlet end of the connecting plate 11 is tilted downward, and one side of the outlet end of the discharge cover 4 is also tilted downward, and the tilt angle of the connecting plate 11 is 0.5°-1.5°.

[0047] By the inclined setting of the connecting plate 11, a certain slope can be formed in the screening box 2, and the graphite particles will slide to the outlet end by themselves under the action of gravity, thereby realizing the screening efficiency of the material; at the same time, the above structure can also effectively prevent a large amount of graphite particles from accumulating on the screen 10, ensuring the rapid flow of the material.

[0048] Further, the screening device further comprises a driving module, the driving module comprising a driving motor 16, an adjusting crankshaft 17 and a connecting rod 18, the adjusting crankshaft 17 is rotatably arranged on the chassis 1, the driving motor 16 is dynamically connected to the adjusting crankshaft 17; one end of the connecting rod 18 is hingedly connected to the adjusting crankshaft 17, and the other end thereof is hingedly connected to the screening box 2;

[0049] The above driving module has a simple structure. At the same time, since the connecting rod 18 always connects the adjusting crankshaft 17 to the screening box 2, there is no need to set a reset device. Therefore, it can effectively simplify the structure of the whole set of devices, thereby improving the stability and reliability of the whole set of devices;

[0050] Further, referring to Figure 4 , two screening boxes 2 are arranged in the chassis 1. Along the length direction of the chassis 1, the adjusting crankshaft 17 is rotatably arranged in the middle of the chassis 1, and the two screening boxes 2 are respectively arranged at both ends of the adjusting crankshaft 17; the adjusting crankshaft 17 includes a main shaft 1701 and two connecting rod journals 1702 integrally connected; the two connecting rod journals 1702 are respectively arranged on both sides of the main shaft 1701, and the two screening boxes 2 are respectively connected to the two connecting rod journals 1702 through connecting rods 18;

[0051] In the above structure, the two screening boxes 2 are simultaneously driven to approach or separate from each other through the structural characteristics of the adjusting crankshaft 17, so as to realize synchronous screening. It can make more efficient use of the transmission efficiency of the adjusting crankshaft 17, which is beneficial to improving the screening efficiency.

[0052] The above is only the preferred embodiment of the present application, and does not limit the patent scope of the present application. Any equivalent structure or equivalent process transformation made by using the content of the specification and drawings of the present application, or directly or indirectly applied in other related technical fields, shall be equally included in the patent protection scope of the present application.

Claims

1. A lithium battery graphite particle screening device, characterized in that: comprising a chassis (1); A screening box (2), wherein the screening box (2) is slidably arranged in the chassis (1); a feed port (3) is arranged at the top of the screening box (2); a plurality of screening components are arranged in the screening box (2), and the screening components are arranged in sequence along the vertical direction, and the screen hole diameters of the screening components decrease linearly; the screening box (2) is also provided with a plurality of discharge covers (4) respectively adapted to the screening components, and the chassis (1) is provided with a plurality of discharge pipes (5), and the discharge covers (4) are respectively inserted into the discharge pipes (5); A plurality of material guide pipes (6), each of the material guide pipes (6) being connected to each of the material discharge pipes (5); a material storage hopper (7) adapted to the screening box (2) is also provided on the top of the machine box (1); A driving module, wherein the driving module is dynamically connected to the screening box (2), and the driving module drives the screening box (2) to reciprocate in the chassis (1).

2. A lithium battery graphite particle screening device according to claim 1, characterized in that: Two mutually parallel slide rails (8) are arranged in the chassis (1), and the two slide rails (8) are arranged along the length direction of the chassis (1). Slide blocks (9) are arranged on the two slide rails (8), and each of the slide blocks (9) is connected to the screening box (2) respectively.

3. A lithium battery graphite particle screening device according to claim 1, characterized in that: The screening assembly comprises a screen (10) and a connecting plate (11) connected to each other; the connecting plate (11) is provided with a material leakage hole (12) adapted to the screen (10); each inner wall of the screening box (2) is provided with a connecting strip (13), and each connecting strip (13) is connected to the connecting plate (11) via a connecting bolt (14).

4. A lithium battery graphite particle screening device according to claim 3, characterized in that: The discharge cover (4) is of a conical structure. The large end of the discharge cover (4) is connected to the screening box (2). The small end of the discharge cover (4) is integrally connected with a plug-in tube (15). The plug-in tube (15) is slidably inserted into the discharge tube (5). The bottom surface of the connecting plate (11) is flush with the bottom surface of the discharge cover (4).

5. A lithium battery graphite particle screening device according to claim 3, characterized in that: One side of the outlet end of the connecting plate (11) is tilted downward, and the tilt angle of the connecting plate (11) is 0.5°-1.5°.

6. A lithium battery graphite particle screening device according to claim 1, characterized in that: The material guide pipe (6) comprises a connecting sleeve (601) and a material guide hose (602) which are connected to each other, and the outlet end of the material discharge pipe (5) is threadedly connected to the connecting sleeve (601).

7. A lithium battery graphite particle screening device according to claim 1, characterized in that: The driving module comprises a driving motor (16) and an adjusting crankshaft (17); the adjusting crankshaft (17) is rotatably arranged on the chassis (1); the driving motor (16) is dynamically connected to the adjusting crankshaft (17); a connecting rod (18) is hingedly connected to the screening box (2); and the connecting rod (18) is hingedly connected to the adjusting crankshaft (17).

8. A lithium battery graphite particle screening device according to claim 7, characterized in that: Two screening boxes (2) are arranged in the chassis (1). Along the length direction of the chassis (1), the adjusting crankshaft (17) is rotatably arranged in the middle of the chassis (1), and the two screening boxes (2) are respectively arranged at the two ends of the adjusting crankshaft (17); the adjusting crankshaft (17) includes a main shaft (1701) and two connecting rod journals (1702) which are integrally connected; the two connecting rod journals (1702) are respectively arranged on both sides of the main shaft (1701), and the two screening boxes (2) are respectively connected to the two connecting rod journals (1702) through connecting rods (18).

9. The device for screening graphite particles of lithium batteries according to claim 1, characterized in that: The storage hopper (7) is arranged in a conical structure, and the outlet end of the storage hopper (7) is connected to the chassis (1) through a conveying pipe (19), an adjustment plate (20) is slidably arranged on the conveying pipe (19), and a fastening screw (21) is also threadedly connected to the conveying pipe (19), and the fastening screw (21) and the adjustment plate (20) are in contact with each other.

10. A lithium battery graphite particle screening device according to claim 9, characterized in that: A support bar (22) is arranged in the material conveying pipe (19), and the support bar (22) and the bottom surface of the adjustment plate (20) are in contact with each other.

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