A lithium battery negative electrode graphite raw material screening device

Abstract

The application discloses a kind of lithium battery negative graphite raw material screening devices, it is related to lithium battery graphite particle screening technical field.The present application includes screening box and multiple interlaced screen ropes, the upper side of screening box is equipped with feed bin, two first moving plates are slidably fitted on the inner wall of screening box on one side, two first moving plates are parallel to each other and are respectively vertically arranged on the inner wall of feed bin, two first moving plates can be close to or away from each other, two second moving plates are slidably fitted between two first moving plates, a plurality of uniformly distributed locking fastening blocks are installed on first moving plate and second moving plate, and a vibration motor is installed on the lower side of second moving plate.The graphite particles blocked between multiple screen ropes can be automatically dropped by being arranged in relative transmission assembly, and the graphite particles blocked between multiple screen ropes can be cleaned.

Description

TECHNICAL FIELD

[0001] The application belongs to the field of lithium battery graphite particle screening, and particularly relates to a lithium battery negative electrode graphite raw material screening device. BACKGROUND

[0002] The indispensable raw material for lithium battery production is graphite particles that can be used as negative electrode materials of lithium ion batteries. However, a certain amount of fine particle powder is generated in the long-distance transportation and storage process of graphite particles, which requires the use of a raw material screening device to screen out the fine particle powder, leaving graphite particles of high quality and meeting the production requirements.

[0003] In the existing screening device, the screen in the screening device is mostly inconvenient to disassemble from the sorting box shell. Over time, the increasing amount of graphite particles clogging the screen holes will affect and hinder the normal screening capacity of the screen. In addition, each time the screen is disassembled and cleaned, a lot of time and labor cost will be wasted, which has great limitations. Moreover, if one of the screen ropes on the screen is damaged, the entire screen needs to be replaced to ensure the screening capacity, which increases the cost of use.

[0004] Therefore, the present application is proposed. SUMMARY

[0005] The technical problem to be solved by the present application is to overcome the shortcomings of the prior art and provide a lithium battery negative electrode graphite raw material screening device that solves the technical problems in the prior art.

[0006] To solve the above technical problems, the basic idea of the technical solution of the present application is as follows:

[0007] A lithium battery negative electrode graphite raw material screening device, comprising: a screening box and a plurality of interlaced screen ropes, the upper side of the screening box is provided with a feeding bin, two first moving plates are slidingly fitted on one side of the inner wall of the screening box, the two first moving plates are parallel to each other and are respectively vertically arranged on the inner wall of the feeding bin, the two first moving plates can move closer to or away from each other, two second moving plates are slidingly fitted between the two first moving plates, a plurality of uniformly distributed locking fastening blocks are arranged on the first moving plate and the second moving plate, and a vibration motor is arranged on the lower side of the second moving plate.

[0008] The two ends of the screen rope are respectively located in the opposite two locking fastening blocks, the first connecting plate includes two sliding parts which are symmetrically arranged along the length direction, the thickness of the sliding part gradually increases from inside to outside, that is, the sliding surface of the sliding part is obliquely arranged, the end surface of the two ends of the second moving plate can be matched with the sliding surface of the sliding part, when the two first connecting plates are close to each other, the two first connecting plates extrude the second moving plate, the second moving plate is gradually close to the middle of the first connecting plate under the guidance of the sliding part, so that the distance between the two second moving plates is shortened, and the screen rope connected between the two second connecting plates changes from the tight state to the relaxed state.

[0009] The opposite transmission assembly is connected with the two first moving plates.

[0010] Optionally, the first moving plate further includes a fixed part between the two sliding parts, the thickness of the fixed part is greater than the thickness of the sliding part, and an elastic member is arranged between the second moving plate and the fixed part to apply a pulling force to the second moving plate to move towards the fixed part, so that the second moving plate moves more smoothly; the elastic member is a spring or an elastic telescopic rod; the two inclined grooves on the same side of the first moving plate are symmetrically distributed, and the elastic member is a spring or an elastic telescopic rod; the opposite transmission assembly includes a groove arranged on one side of the screening box, a double-thread rod rotatably arranged in the groove, two threaded blocks slidably arranged in the groove and threadedly connected with the double-thread rod, and a driving member arranged at the end of the double-thread rod penetrating through the screening box, and the two threaded blocks are connected with the two first moving plates respectively; the driving member is a handle or a motor; the double-thread rod includes a first rod body and a second rod body, a first thread arranged on the side of the first rod body, and a second thread arranged on the side of the second rod body, and the two threaded blocks are threadedly connected with the first thread and the second thread respectively.

[0011] Through the opposite transmission assembly, the driving member drives the first rod body and the second rod body to rotate, the first rod body and the second rod body rotate to drive the two threaded blocks to move relative to each other through the first thread and the second thread, the two threaded blocks drive the two first moving plates to move relative to each other, the two first moving plates drive the two second moving plates to move relative to each other through the extrusion of the inclined surfaces of the inclined grooves, and the plurality of screen ropes change from the tight state to the relaxed state on the two first moving plates and the two second moving plates, the graphite particles blocked between the plurality of screen ropes automatically fall off, the graphite particles blocked between the plurality of screen ropes can be cleaned, thereby improving the cleaning efficiency and reducing the labor cost.

[0012] After the graphite particles between the plurality of screen ropes are cleaned, the driving member drives the first rod body and the second rod body to rotate reversely and drives the two first moving plates to reset according to the above steps, the two second moving plates are reset through the elastic force of the elastic member, and the two first moving plates and the two second moving plates reset the plurality of screen ropes from the relaxed state to the tight state, thereby facilitating the resetting of the plurality of screen ropes.

[0013] Optionally, the locking fastening block comprises a plurality of fixing blocks respectively arranged on the first moving plate and the second moving plate, a groove opened on one side of the fixing block, a pressing block slidingly fitted in the groove, a fastening bolt threadedly fitted on the upper side of the fixing block, and a threaded end of the fastening bolt rotationally fitted on the upper side of the pressing block; a circular groove is opened on the upper side of the pressing block, the circular groove is in a convex structure, and a rotating block fixedly connected with the threaded end of the fastening bolt is rotationally fitted in the circular groove. When one of the screen ropes is damaged, the user can rotate the fastening bolt, the threaded end of the fastening bolt rotates in the circular groove through the rotating block, and the pressing block moves up and down in the groove, so that the screen rope is pressed or loosened, the damaged screen rope is disassembled and replaced, and the use cost is reduced.

[0014] Optionally, a fixing groove is opened on one side of the second moving plate, a ball is movably fitted in the fixing groove, a sliding groove is opened in the sliding part, the ball is located in the sliding groove, and the fixing groove is an arc groove larger than a semicircle. The sliding groove is arranged, so that the ball rolls in the sliding groove, and the stability of the one end of the second moving plate sliding on one side of the first moving plate is improved.

[0015] Optionally, a box door is arranged on one side of the screening box, an observation window is arranged on the box door, and a collecting box is arranged on the inner wall of the screening box. The observation window is arranged, so that the user can observe the screening condition of the graphite particles in the screening box, and the collecting box is arranged, so that the screened graphite particles can be collected.

[0016] After the above technical solutions are adopted, the present application has the following advantages compared with the prior art. Of course, any product implementing the present application does not necessarily need to achieve all the advantages described below:

[0017] The relative transmission assembly is arranged, so that the two first moving plates relatively move to extrude the two second moving plates to relatively move, the plurality of screen ropes change from a taut state to a relaxed state on the two first moving plates and the two second moving plates, and the graphite particles blocked between the plurality of screen ropes automatically fall off, so that the graphite particles blocked between the plurality of screen ropes can be cleaned, the cleaning efficiency is improved, and the labor cost is reduced.

[0018] The plurality of locking fastening blocks are arranged, so that the damaged screen rope can be disassembled and replaced, the use cost is reduced, and the damaged screen rope is replaced.

[0019] The specific embodiments of the present application are described in detail below with reference to the accompanying drawings. BRIEF DESCRIPTION OF DRAWINGS

[0020] The drawings in the following description are only some embodiments, and other drawings can be obtained by those skilled in the art without creative labor on the basis of these drawings. In the drawings

[0021] In the drawings:

[0022] Figure 1 Schematic diagram of the three-dimensional structure of the screening device;

[0023] Figure 2 Schematic diagram of the internal structure of the screening device;

[0024] Figure 3 Schematic diagram of the relative transmission assembly structure;

[0025] Figure 4 Schematic diagram of the locking fastening block structure;

[0026] Figure 5 Schematic diagram of the bidirectional threaded rod structure;

[0027] Figure 6 Schematic diagram of the internal structure of the inclined chute.

[0028] In the drawings, the components represented by each reference numeral are listed as follows:

[0029] Screening box 1, feed bin 2, box door 3, observation window 4, collection box 5, first moving plate 6, second moving plate 7, locking fastening block 8, fixed block 801, groove 802, pressing block 803, fastening bolt 804, screen rope 9, elastic member 10, relative transmission assembly 11, channel 1101, bidirectional threaded rod 1102, first rod body 11021, second rod body 11022, first thread 11023, second thread 11024, threaded block 1103, driving member 1104, fixed groove 12, ball 13, sliding groove 14, vibration motor 15.

[0030] It should be noted that these drawings and written descriptions are not intended to limit the scope of the concept of the present application in any way, but to illustrate the concept of the present application to those skilled in the art by referring to specific embodiments. DETAILED DESCRIPTION

[0031] The present application will now be further described in detail in conjunction with the drawings.

[0032] Please refer to Figures 1-6As shown, in the embodiment, a lithium battery negative graphite raw material screening device is provided, which comprises a screening box 1 and a plurality of interlaced screen ropes 9. The screening box 1 is provided with a feeding bin 2 on the upper side. Two first moving plates 6 are slidably connected to one side of the inner wall of the screening box 1. The two first moving plates 6 are parallel to each other and are respectively arranged perpendicularly on the inner wall of the feeding bin 2. The two first moving plates 6 can move closer to or away from each other. Two second moving plates 7 are slidably connected between the two first moving plates 6. A plurality of locking fastening blocks 8 are arranged on the first moving plate 6 and the second moving plate 7. A vibration motor 15 is arranged on the lower side of the second moving plate 7.

[0033] The two ends of the screen rope 9 are located in the opposite locking fastening blocks 8. The first connecting plate 6 comprises two sliding parts which are symmetrically arranged along the length direction. The thickness of the sliding part gradually increases from inside to outside, that is, the sliding surface of the sliding part is inclined. The end surface of the second moving plate 7 can be matched with the sliding surface of the sliding part. When the two first connecting plates 6 move closer to each other, the two first connecting plates 6 extrude the second moving plate 7. Under the guidance of the sliding part, the second moving plate 7 gradually moves closer to the middle of the first connecting plate 6, so that the distance between the two second moving plates 7 is shortened. The screen rope 9 connected between the two second connecting plates 7 changes from the tight state to the relaxed state.

[0034] The relative transmission assembly 11 connected with the two first moving plates 6 is arranged in one side of the screening box 1.

[0035] In use, the user puts the graphite particles into the screening box 1 from the feeding bin 2. The vibration motor 15 is started to drive the plurality of screen ropes 9 to vibrate through the first moving plate 6 and the second moving plate 7, so as to screen out fine particle powder graphite.

[0036] When the graphite particles blocked between the plurality of screen ropes 9 are cleaned, the relative transmission assembly 11 is started to drive the two first moving plates 6 to move closer to each other. When the two first connecting plates 6 move closer to each other, the two first connecting plates 6 extrude the second moving plate 7. Under the guidance of the sliding part, the second moving plate 7 gradually moves closer to the middle of the first connecting plate 6, so that the distance between the two second moving plates 7 is shortened. The screen rope 9 connected between the two second connecting plates 7 changes from the tight state to the relaxed state. The graphite particles blocked between the plurality of screen ropes 9 automatically fall off, so as to clean the graphite particles blocked between the plurality of screen ropes 9. It should be noted that all the electrical equipment involved in the present application can be powered by a storage battery or an external power source.

[0037] By setting the relative transmission assembly 11, the two first moving plates 6 can be moved relative to each other to press the two second moving plates 7 to move relative to each other, the plurality of screen ropes 9 on the two first moving plates 6 and the two second moving plates 7 change from a taut state to a relaxed state, and the graphite particles blocked between the plurality of screen ropes 9 automatically fall off, so that the graphite particles blocked between the plurality of screen ropes 9 can be cleaned, thereby improving the cleaning efficiency and reducing the labor cost.

[0038] By setting the plurality of locking fastening blocks 8, when one of the screen ropes 9 is damaged, the damaged screen rope 9 can be disassembled and replaced, thereby reducing the use cost.

[0039] Specifically, as shown in Figure 3 The first moving plate 6 further includes a fixed portion between the two sliding portions, the thickness of the fixed portion is greater than the thickness of the sliding portion, and the second moving plate 7 is provided with an elastic member 10 between the fixed portion, so as to exert a pulling force on the second moving plate 7 to move towards the fixed portion, so that the second moving plate 7 moves more smoothly; the elastic member 10 is a spring or an elastic telescopic rod;

[0040] The specific structure of the relative transmission assembly 11 includes the following: as shown in Figure 3 The groove 1101 is opened on one side of the screening box 1, the bidirectional threaded rod 1102 is rotatably connected in the groove 1101, the two threaded blocks 1103 are slidably connected in the groove 1101 and are threadedly connected with the bidirectional threaded rod 1102, the driving member 1104 is arranged at the end of the bidirectional threaded rod 1102 penetrating the screening box 1, and the two threaded blocks 1103 are respectively connected with the two first moving plates 6; the driving member 1104 is a handle or a motor; the bidirectional threaded rod 1102 includes a first rod body 11021 and a second rod body 11022, the first thread 11023 is arranged on the side of the first rod body 11021, the second thread 11024 is arranged on the side of the second rod body 11022, and the two threaded blocks 1103 are respectively threadedly connected on the first thread 11023 and the second thread 11024, wherein the rotation directions of the first thread 11023 and the second thread 11024 are opposite.

[0041] Through the relative transmission assembly 11, the driving member 1104 drives the first rod body 11021 and the second rod body 11022 to rotate, the first rod body 11021 and the second rod body 11022 drive the two threaded blocks 1103 to move relative to each other through the first screw 11023 and the second screw 11024, the two threaded blocks 1103 drive the two first moving plates 6 to move close to each other, when the two first connecting plates 6 move close to each other, the two first connecting plates 6 extrude the second moving plate 7, the second moving plate 7 gradually moves to the middle of the first connecting plate 6 under the guidance of the sliding part, so that the distance between the two second moving plates 7 is shortened, the screen rope 9 connected between the two second connecting plates 7 changes from the tight state to the relaxed state, the graphite particles blocked between the screen ropes 9 automatically fall off, the graphite particles blocked between the screen ropes 9 can be cleaned, thereby improving the cleaning efficiency and reducing the labor cost.

[0042] After the graphite particles between the screen ropes 9 are cleaned, the driving member 1104 drives the first rod body 11021 and the second rod body 11022 to rotate in the opposite direction and drives the two first moving plates 6 to reset through the above steps, the two second moving plates 7 are reset through the elastic force of the elastic member 10, and the two first moving plates 6 and the two second moving plates 7 reset the screen ropes 9 in the relaxed state to the tight state, thereby facilitating the resetting of the screen ropes 9.

[0043] Specifically, as shown in the figure, Figure 4 The locking and fastening block 8 specifically comprises the following: a plurality of fixed blocks 801 arranged on the first moving plate 6 and the second moving plate 7 respectively, a groove 802 opened on one side of the fixed block 801, a pressing block 803 slidingly fitted in the groove 802, a fastening bolt 804 threadedly fitted on the upper side of the fixed block 801, and the threaded end of the fastening bolt 804 being rotationally fitted on the upper side of the pressing block 803; a circular groove is opened on the upper side of the pressing block 803, the circular groove is a convex structure, and a rotating block fixedly connected with the threaded end of the fastening bolt 804 is rotationally fitted in the circular groove, wherein one end of the screen rope 9 is located in the groove 802.

[0044] Through the locking and fastening block 8, when one of the screen ropes 9 is damaged, the user can rotate the fastening bolt 804, the threaded end of the fastening bolt 804 rotates in the circular groove through the rotating block, and the pressing block 803 can move up and down in the groove 802, the pressing block 803 can press or loosen the screen rope 9, the damaged screen rope 9 can be disassembled and replaced, thereby reducing the use cost.

[0045] As shown in the figure, Figure 6As shown, one side of the second moving plate 7 of the embodiment is provided with a fixing groove 12, a ball 13 is movably fitted in the fixing groove 12, a sliding groove 14 is formed in the sliding part, the ball 13 is located in the sliding groove 14, and the fixing groove 12 is an arc-shaped groove larger than a semicircle. Through the sliding groove 14, the ball 13 can roll in the sliding groove 14, thereby improving the stability of the sliding of one end of the second moving plate 7 on one side of the first moving plate 6.

[0046] As shown, Figure 1 As shown, one side of the screening box 1 of the embodiment is provided with a box door 3, the box door 3 is provided with an observation window 4, and the inner wall of the screening box 1 is provided with a collection box 5. Through the observation window 4, the user can conveniently observe the screening situation of the graphite particles in the screening box 1, and through the collection box 5, the screened graphite particles can be collected.

[0047] When the graphite particles are put into the feeding bin 2, the powder of the graphite particles will be scattered into the working space, causing pollution of the working space. In order to reduce the pollution of the working space, an embodiment is provided.

[0048] The feeding bin 2 of the embodiment is communicated with the screening box 1 through a discharging pipe, a dust cover is arranged above the feeding bin 2 and covers the opening of the feeding bin 2, a dust suction pipe is arranged on the dust cover and is used for sucking dust in the dust cover, and a feeding port is formed in the dust cover; the dust suction pipe penetrates into the dust cover, a fixing member is arranged at the connection between the dust suction pipe and the dust cover and is used for fixing the dust suction pipe on the dust cover, the fixing member includes a clamping block arranged on the dust suction pipe and a locking ring threadedly connected to the dust suction pipe, the locking ring is located outside the dust cover, the clamping block is located inside the dust cover, the dust cover is provided with a mounting hole for the dust suction pipe to penetrate, and a penetrating hole is formed in the hole wall of the mounting hole and is used for the clamping block to penetrate; a sealing ring is arranged on the locking ring and abuts against the dust cover at one end away from the locking ring; first and second clamping sealing rings are arranged at both ends of the sealing ring, a first clamping ring groove is formed in the locking ring and is used for the first clamping sealing ring to be placed, and a second clamping ring groove is formed in the dust cover and is used for the second clamping sealing ring to be placed; a plurality of dust suction holes are formed in the end of the dust suction pipe penetrating into the dust cover and are distributed in the circumferential direction of the dust suction pipe; a dustproof door is slidably connected to the feeding port, and a transmission member is arranged on the dust cover and is used for driving the dustproof door to move vertically; the transmission member includes a driving rack, a driving gear and a driving motor used for driving the driving gear to rotate, the driving gear is rotatably connected to the dust cover, the driving rack is vertically arranged and is arranged on the dustproof door, and the driving gear is engaged with the driving rack; the transmission member further includes a worm gear and a worm, the worm gear rotates synchronously with the driving gear, the worm is rotatably connected to the dust cover, and the worm is engaged with the worm gear.

[0049] In use, the driving motor and the air suction machine are started, the driving motor drives the dustproof door to move downwards through the worm, the worm gear, the driving gear and the driving rack, then the graphite particles are put in through the inlet, the driving motor drives the dustproof door to move upwards through the worm, the worm gear, the driving gear and the driving rack, and the dust suction pipe sucks the powder in the hopper of the bin body; when the dust suction pipe needs to be detached from the dust cover, the locking ring is screwed out, then the dust suction pipe is rotated to make the clamping block slide out through the through hole, so that the dust suction pipe is detached from the dust cover.

[0050] When the graphite particles are put in, the dust cover and the dust suction pipe can reduce the powder in the graphite particles from entering the working environment, the fixing member, the first clamping sealing ring and the second clamping sealing ring can fix and install the dust suction pipe on the dust cover, and reduce the powder in the graphite particles from scattering into the working space through the gap between the dust suction pipe and the dust cover, the dustproof door and the transmission member can reduce the powder in the perlite from scattering into the working space through the inlet.

[0051] The present application is not limited to the above-mentioned embodiments, and anyone should know that the structural changes made under the inspiration of the present application fall within the protection scope of the present application. The technical, shape and structure parts not described in detail in the present application are well-known technologies.

Claims

1. A lithium battery negative electrode graphite raw material screening device, characterized by, The utility model relates to a screening box, which comprises: a screening box (1) provided with a feeding bin (2) on the upper side, two first moving plates (6) slidingly fitted on the inner wall of the screening box (1), the two first moving plates (6) being parallel to each other and vertically arranged on the inner wall of the feeding bin (2), the two first moving plates (6) being capable of moving closer to or away from each other, two second moving plates (7) slidingly fitted between the two first moving plates (6), a plurality of locking fastening blocks (8) evenly distributed being arranged on the first moving plates (6) and the second moving plates (7), and a vibration motor (15) arranged on the lower side of the second moving plates (7); a plurality of interlaced screen ropes (9), the two ends of the screen rope (9) being located in the opposite locking fastening blocks (8) respectively, the first moving plate (6) comprising two sliding parts symmetrically arranged along the length direction, the thickness of the sliding part gradually increasing from inside to outside, i.e. the sliding surface of the sliding part being obliquely arranged, the end surface of the two ends of the second moving plate (7) being capable of cooperating with the sliding surface of the sliding part, when the two first moving plates (6) move closer to each other, the two first moving plates (6) extrude the second moving plate (7), the second moving plate (7) gradually moves closer to the middle of the first moving plate (6) under the guidance of the sliding part, so that the distance between the two second moving plates (7) is shortened, and the screen rope (9) connected between the two second moving plates (7) changes from the taut state to the relaxed state; wherein the screening box (1) is internally provided with an opposite transmission assembly (11) connected with the two first moving plates (6); the opposite transmission assembly (11) comprising a channel (1101) opened on one side of the screening box (1), a bidirectional threaded rod (1102) rotationally fitted in the channel (1101), two threaded blocks (1103) slidingly fitted in the channel (1101) and threadedly cooperating with the bidirectional threaded rod (1102), and a driving member (1104) arranged at the end of the bidirectional threaded rod (1102) penetrating through the screening box (1), the two threaded blocks (1103) being respectively connected with the two first moving plates (6).

2. The lithium battery negative graphite raw material screening device according to claim 1, characterized in that, The first moving plate (6) further comprises a fixed part between the two sliding parts, the thickness of the fixed part being greater than the thickness of the sliding part, an elastic member (10) being arranged between the second moving plate (7) and the fixed part to exert a pulling force on the second moving plate (7) moving towards the fixed part, so that the second moving plate (7) moves more smoothly.

3. The graphite raw material screening device for a lithium battery negative electrode according to claim 2, characterized by, The elastic member (10) is a spring or an elastic telescopic rod.

4. The graphite raw material screening device for a lithium battery anode according to claim 1, characterized by, The driving member (1104) is a handle or a motor.

5. The graphite raw material screening device for a lithium battery anode according to claim 1, characterized by, The bidirectional threaded rod (1102) comprises a first rod body (11021) and a second rod body (11022), a first thread (11023) arranged on the circumferential side of the first rod body (11021), and a second thread (11024) arranged on the circumferential side of the second rod body (11022), the two threaded blocks (1103) being threadedly cooperated on the first thread (11023) and the second thread (11024) respectively.

6. The graphite raw material screening device for a lithium battery anode according to claim 1, characterized by, The locking fastening block (8) comprises a plurality of fixed blocks (801) respectively arranged on the first moving plate (6) and the second moving plate (7), a recess (802) formed on one side of the fixed block (801), a pressing block (803) slidingly fitted in the recess (802), and a fastening bolt (804) threadedly fitted on the upper side of the fixed block (801), and the threaded end of the fastening bolt (804) is rotationally fitted on the upper side of the pressing block (803).

7. The graphite raw material screening device for a lithium battery anode according to claim 6, characterized by, A circular groove is formed on the upper side of the pressing block (803), the circular groove is a convex structure, and a rotating block fixedly connected with the threaded end of the fastening bolt (804) is rotationally fitted in the circular groove.

8. The graphite raw material screening device for a lithium battery anode according to claim 1, characterized by, One side of the second moving plate (7) is provided with a fixed groove (12), the fixed groove (12) movably fits with a ball (13), a sliding groove (14) is formed in the sliding part, the ball (13) is located in the sliding groove (14), and the fixed groove (12) is an arc-shaped groove larger than a semicircle.

9. The graphite raw material screening device for a lithium battery anode according to claim 1, characterized by, One side of the screening box (1) is provided with a box door (3), the box door (3) is provided with an observation window (4), and the inner wall of the screening box (1) is provided with a collecting box (5).

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