A screening device for graphite production

Abstract

The present invention relates to the field of graphite screening technology, and specifically to a screening device for graphite production, including: a screening box, a dispersing and blocking component, a driving component, a drawer component, a screen, a moving component, a cleaning component, a first knocking component, a second telescopic member, a second knocking component, a first linkage component, and a second linkage component. The present invention can reduce the impact force of graphite on the screen to reduce the damage caused by graphite to the screen, and increase the service life of the screen. At the same time, the graphite can be evenly dispersed on the screen to increase the utilization rate of the mesh holes on the screen, and the screen can be cleaned to prevent the screen from being blocked after long-term use, thereby ensuring the screening efficiency, and the screen can be tilted so that the graphite on the screen can be quickly discharged, thereby improving the screening effect of subsequent graphite, and the screen can also be quickly replaced to improve work efficiency.

Description

Technical Field

[0001] The invention relates to the technical field of graphite screening, and in particular to a screening device used for graphite production. Background Art

[0002] Graphite is an allotrope of carbon. It is a gray-black, opaque solid with stable chemical properties, corrosion resistance, and is not easy to react with acids, alkalis and other agents. With its excellent physical and chemical properties, graphite can not only be used as an anti-wear agent and lubricant, but also high-purity graphite can be used as a neutron moderator in atomic reactors. At the same time, graphite can also be used to make crucibles, electrodes, brushes, dry batteries, graphite fibers, heat exchangers, coolers, arc furnaces, arc lamps, pencil refills, etc. It can be seen that graphite is used in many fields.

[0003] In many fields, graphite is often used in the form of powder. In the graphitization production process of lithium battery negative electrode materials, the negative electrode powder raw material is graphitized to make lithium battery negative electrode materials (i.e. graphite). After cooling, it needs to be graded and screened according to the different particle sizes of the negative electrode materials, which requires the use of a screening device to grade and screen the graphite.

[0004] When adding graphite to the existing screening device, the graphite will directly impact the screen, and the landing point of the graphite will not change, so that the same point of the screen is continuously impacted, and the long-term impact will cause the screen to deform, and the graphite will keep falling to the same place, which will cause it to accumulate on the screen. Although the graphite can be moved to other positions on the screen by vibration, it will still affect the screening efficiency and screening effect of the screen, and the screen may be blocked after long-term use. Since the graphite needs to be graded and screened, the internal structure of the screening device is complicated, and it is more troublesome for the staff to clean the screen, which affects the screening efficiency. In addition, the existing screen for graded screening of graphite is usually inclined, causing the graphite to move along the inclination direction of the screen, often accumulated at the bottom of the screen, and cannot be discharged in time. Excessive graphite accumulation will reduce the screening effect of subsequent graphite, and the existing device is also more troublesome when replacing the screen.

[0005] Therefore, the applicant proposes a screening device for graphite production to solve the above problems. Summary of the invention

[0006] In view of the deficiencies in the prior art, an object of the present invention is to provide a screening device for graphite production.

[0007] In order to achieve the above object, the present invention adopts the following technical solutions:

[0008] A screening device for graphite production, comprising:

[0009] A screening box, wherein a feed port is provided at the top of the screening box, a first discharge port is provided at the bottom of the screening box, a first mounting plate is installed at the upper inner portion of the screening box, a first telescopic member is installed on the first mounting plate, a plurality of openings are opened at one side of the screening box, and a plurality of second discharge ports are provided at the other side of the screening box;

[0010] A dispersion and plugging component, wherein the dispersion and plugging component is located directly above the telescopic end of the first telescopic member, and the dispersion and plugging component is located directly below the feed inlet, and the first telescopic member can drive the dispersion and plugging component to plug the feed inlet;

[0011] A driving assembly, which is installed on the upper part of the screening box and can drive the dispersion and plugging assembly to rotate to disperse the graphite;

[0012] A drawer assembly, wherein the drawer assembly is provided in a plurality of groups and the drawer assembly can enter and exit the screening box through the opening;

[0013] A screen, wherein a screen frame is installed on the drawer assembly, and the screen is installed in the screen frame;

[0014] A moving assembly, wherein the moving assembly is provided with a plurality of groups and the moving assembly is located above the drawer assembly;

[0015] A cleaning and brushing assembly is installed on the moving assembly, and the cleaning and brushing assembly is used to clean the screen;

[0016] A first knocking assembly, wherein the first knocking assembly is installed on both sides of the cleaning assembly, and the first knocking assembly is used to knock the screen frame;

[0017] A second telescopic member, the second telescopic member is located at a side of the screening box away from the opening, a plurality of the second telescopic members are provided, the second telescopic members are located below the drawer assembly, and the second telescopic members support the bottom of the side of the drawer assembly away from the opening;

[0018] A second knocking component, the second knocking component is located on one side of the second telescopic member, and the second knocking component is used to knock the bottom of the drawer component;

[0019] A first linkage assembly, wherein the driving assembly is used to drive the moving assembly through the first linkage assembly;

[0020] The second linkage component, the driving component is used to drive the second knocking component through the first linkage component and the second linkage component.

[0021] Furthermore, the dispersion and blocking assembly includes a first conical plate located above the first telescopic member, a plurality of dispersion holes being opened on the first conical plate, a plurality of arc guide plates being evenly distributed along the circumference thereof, a plurality of support rods being installed on the first conical plate, a mounting frame being installed on the top of the support rods, a plurality of elastic protrusions being circumferentially spaced apart on the outer wall of the mounting frame and the lower part of the feed port, a second conical plate being provided on the mounting frame, a plurality of distribution holes being evenly opened on the second conical plate along the circumference thereof.

[0022] Furthermore, the driving assembly includes a motor installed on one side of the upper part of the screening box, a first rotating shaft is installed on the output end of the motor, the other end of the first rotating shaft extends into the screening box and is installed with a first bevel gear, the top of the telescopic end of the first telescopic member is rotatably connected to a second bevel gear that meshes with the first bevel gear, a second rotating shaft is installed on the top of the second bevel gear, and the top of the second rotating shaft is connected to the bottom of the first conical plate.

[0023] Furthermore, the drawer assembly includes a bottom frame and a top frame, a plurality of telescopic rods are provided between the bottom frame and the top frame, the outer sleeve of the telescopic rods is provided with a spring connected to the bottom frame and the top frame, one end of the bottom frame is rotatably connected to the lower part of the connecting plate, a handle is provided on the connecting plate, and a screen frame is installed on the top frame.

[0024] Furthermore, the moving assembly includes a reciprocating screw rod rotatably arranged on one side of the screening box and a guide rod arranged on the other side of the screening box, the reciprocating screw rod is threadedly connected with a threaded block, a slider is slidably provided on the guide rod, and a cleaning brush assembly is rotatably provided between the threaded block and the slider.

[0025] Furthermore, the brush cleaning assembly includes a connecting shaft rotatably arranged between the threaded block and the slider, a brush cleaning roller is installed on the connecting shaft, the brush cleaning roller is provided with bristles, gears are installed on both sides of the connecting shaft, racks meshing with the gears are installed on both sides of the screening box, and a first knocking assembly is installed on both sides of the connecting shaft.

[0026] Furthermore, the first knocking assembly includes a first ring plate installed on the connecting shaft, a plurality of first connecting rods are evenly arranged on the outer wall of the first ring plate, a first knocking head is installed at one end of the first connecting rod away from the first ring plate, and the first knocking head can knock on the top of the screen frame.

[0027] Furthermore, the second knocking assembly includes a seventh rotating shaft rotatably arranged on one side of the screening box, and the seventh rotating shaft is located on one side of the second telescopic member, second ring plates are installed on both sides of the seventh rotating shaft, and a plurality of second connecting rods are evenly arranged on the outer side wall of the second ring plate, and a second knocking head is installed at one end of the second connecting rod away from the second ring plate, and the second knocking head can knock on the bottom of the bottom frame.

[0028] Furthermore, the first linkage assembly includes a third bevel gear installed on the first rotating shaft, one side of the third bevel gear is meshed with the fourth bevel gear, the fourth bevel gear is connected to one end of the third rotating shaft, a fifth bevel gear is installed on the other end of the third rotating shaft, one side of the fifth bevel gear is meshed with the sixth bevel gear, the sixth bevel gear is connected to a fourth rotating shaft rotatably connected to the side wall of the screening box, a first pulley is installed on the fourth rotating shaft, one end of the reciprocating screw rod extends to the outside of the screening box and a second pulley is installed, and a first belt is connected between the first pulley and the second pulley.

[0029] Furthermore, the second linkage assembly includes a seventh bevel gear meshingly connected to one side of the sixth bevel gear, the seventh bevel gear is connected to one end of the fifth rotating shaft, the other end of the fifth rotating shaft is equipped with a third pulley, a sixth rotating shaft is rotatably connected on the side wall of the screening box directly above the seventh rotating shaft, a fourth pulley and a fifth pulley are installed on the sixth rotating shaft, a second belt is connected between the third pulley and the fourth pulley, one end of the seventh rotating shaft extends to the outside of the screening box and a sixth pulley is installed, and a third belt is connected between the fifth pulley and the sixth pulley.

[0030] Compared with the prior art, the present invention provides a screening device for graphite production, which has the following beneficial effects:

[0031] 1. The present invention can reduce the impact force of graphite on the screen to reduce the damage caused by graphite to the screen and increase the service life of the screen by the cooperation between the dispersion plugging component and the driving component. At the same time, it can also control the position where the graphite falls on the screen so that the graphite is evenly dispersed on the screen to increase the utilization rate of the mesh on the screen, thereby improving the screening efficiency.

[0032] 2. The present invention cooperates with the first telescopic member through the dispersion and plugging assembly. At regular intervals, the first telescopic member can drive the dispersion and plugging assembly to rise, separate the transmission between the dispersion and plugging assembly, and block the feed port through the dispersion and plugging assembly to avoid excessive graphite entering the screening box, causing screening difficulties, and can control the amount of graphite entering the screening box to ensure the working efficiency of the screening box;

[0033] 3. The present invention cooperates with the moving component, the cleaning component and the first knocking component. The moving component drives the cleaning component to move, and the cleaning component can rotate to clean the screen, thereby preventing the screen from being blocked after long-term use, thereby ensuring the screening efficiency of the screen. During the cleaning, the cleaning component drives the first knocking component to rotate, knocking the screen frame, causing the screen to vibrate, thereby further improving the dispersion effect of graphite and the screening efficiency of the screen.

[0034] 4. When the drawer assembly of the present invention is located in the screening box, the screen is in a horizontal state, and the bottom of the drawer assembly away from the opening is supported by the second telescopic member. When the graphite screened on the screen needs to be discharged, the telescopic end of the second telescopic member descends, so that the screen on the drawer assembly is in an inclined state, and the outlet in the inclined direction corresponds to the second discharge port, and the bottom of the drawer assembly is knocked by the second knocking assembly, so that the graphite on the screen can be quickly discharged, thereby improving the screening effect of subsequent graphite and ensuring the working efficiency of the screening box;

[0035] 5. The present invention can realize the driving of the dispersed blocking component, the moving component, the cleaning component, the first knocking component and the second knocking component through the mutual cooperation of the driving component, the first linkage component and the second linkage component through a single drive, without setting up multiple sets of drives, which not only saves manpower and material resources, but also helps to simplify the equipment and reduce costs;

[0036] 6. The present invention installs the screen in the screen frame, and the mounting frame is installed on the drawer assembly. When the screen needs to be replaced, the drawer assembly can be directly taken out from the opening of the screening box, and the screen frame can be directly replaced. After replacement, the drawer assembly can be reinserted into the screening box from the opening, thereby realizing the function of quickly replacing the screen and improving work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] Figure 1 It is a front cross-sectional structural schematic diagram of the present invention;

[0038] Figure 2 It is a right view structural schematic diagram of the present invention;

[0039] Figure 3 yes Figure 2 A schematic diagram of a top view structure;

[0040] Figure 4 yes Figure 1 A schematic diagram of the enlarged structure at A in the middle;

[0041] Figure 5 It is a schematic diagram of the top view of the structure of the dispersed plugging assembly of the present invention;

[0042] Figure 6 yes Figure 1A schematic diagram of the enlarged structure at B in the middle;

[0043] Figure 7 yes Figure 1 Schematic diagram of the enlarged structure at C in the middle;

[0044] Figure 8 It is a structural schematic diagram of the screen frame and the screen of the present invention;

[0045] Fig. 9 yes Figure 1 Schematic diagram of the enlarged structure at D in the middle;

[0046] Fig.10 It is a left-side structural schematic diagram of the moving assembly, the cleaning assembly and the first knocking assembly of the present invention;

[0047] Fig.11 It is a left-side structural schematic diagram of the second supporting plate, the second protective shell and the second mounting plate of the present invention;

[0048] Fig.12 It is a left-side structural schematic diagram of the second linkage component of the present invention.

[0049] Markings in the figure: 1, screening box; 2, feed inlet; 3, first discharge outlet; 4, first mounting plate; 5, first telescopic member; 6, dispersion blocking assembly; 61, first conical plate; 62, dispersion hole; 63, arc guide plate; 64, support rod; 65, mounting frame; 66, second conical plate; 67, distribution hole; 7, driving assembly; 71, motor; 72, first rotating shaft; 73, first bevel gear; 74, second bevel gear; 75, second rotating shaft; 8, opening; 9, drawer assembly; 91, bottom frame; 92, top frame; 93, telescopic rod; 94, spring; 95, connecting plate; 96, handle; 10, screen frame; 11, screen; 12, moving assembly; 121, reciprocating screw rod; 122, thread block; 123, guide rod; 124, slider; 13, brush cleaning assembly; 131, connecting shaft; 132, brush cleaning roller; 133, bristles; 134, gear; 135, rack; 14, first knocking assembly; 141, first ring plate; 142, first connecting rod; 143, first knocking head; 1 5. Second telescopic member; 16. Second discharge port; 17. Second knocking assembly; 171. Seventh rotating shaft; 172. Second ring plate; 173. Second connecting rod; 174. Second knocking head; 18. First linkage assembly; 181. Third bevel gear; 182. Fourth bevel gear; 183. Third rotating shaft; 184. Fifth bevel gear; 185. Sixth bevel gear; 186. Fourth rotating shaft; 187. First pulley; 188. Second pulley; 189. First belt; 19. Second linkage assembly ; 191, seventh bevel gear; 192, fifth rotating shaft; 193, third pulley; 194, sixth rotating shaft; 195, fourth pulley; 196, second belt; 197, fifth pulley; 198, sixth pulley; 199, third belt; 20, flange; 21, first protective shell; 22, first support plate; 23, second support plate; 24, second protective shell; 25, second mounting plate; 26, pin shaft; 27, rotating baffle; 28, rib; 29, support leg; 30, elastic protrusion. DETAILED DESCRIPTION

[0050] The present invention will be further described below in conjunction with the accompanying drawings and embodiments:

[0051] The standard parts used in the present invention can all be purchased from the market, and special-shaped parts can be customized according to the instructions and the drawings. The specific connection methods of each part adopt conventional means such as mature bolts, rivets, welding, etc. in the prior art. Machinery, parts and equipment all adopt conventional models in the prior art, and the circuit connection adopts the conventional connection method in the prior art, which will not be described in detail here.

[0052] It should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", "third", "fourth", "fifth", "sixth", and "seventh" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0053] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0054] In the description of the present invention, “plurality” means two or more than two, unless otherwise clearly and specifically defined.

[0055] The embodiment of the present invention provides a screening device for graphite production, referring to Figures 1 to 12 , including: a screening box 1, a dispersion and blocking component 6, a driving component 7, a drawer component 9, a screen 11, a moving component 12, a cleaning component 13, a first knocking component 14, a second telescopic member 15, a second knocking component 17, a first linkage component 18 and a second linkage component 19;

[0056] The top of the screening box 1 is provided with a feed port 2, the bottom of the screening box 1 is provided with a first discharge port 3, the first discharge port 3 is used to discharge graphite with the smallest particle size, the upper part of the screening box 1 is installed with a first mounting plate 4, the first mounting plate 4 is installed with a first telescopic member 5, one side of the screening box 1 is provided with a plurality of openings 8, the other side of the screening box 1 is provided with a plurality of second discharge ports 16, the second discharge ports 16 are used to discharge the screened graphite;

[0057] Specifically, the top of the first mounting plate 4 is arranged in an arc shape to reduce the obstruction to the graphite and facilitate the falling of the graphite; the number of the openings 8 is consistent with the number of the second discharge ports 16, and the openings 8 and the second discharge ports 16 are arranged opposite to each other on the screening box 1; the feed port 2 and the first discharge port 3 are both funnel-shaped; the graphite discharged from the first discharge port 3 and the second discharge port 16 can be collected respectively by the collecting box;

[0058] Reference Figure 1A flange 20 is installed on the top of the feed port 2, which is connected to an external feeding device through the flange 20, so that graphite can enter the screening box 1 through the feed port 2; support legs 29 are installed on both sides of the lower part of the screening box 1. Preferably, the number of support legs 29 is 4, which are distributed in a rectangular array at the lower part of the screening box 1;

[0059] The dispersion and blocking component 6 is located directly above the telescopic end of the first telescopic member 5, and the dispersion and blocking component 6 is located directly below the feed inlet 2. The first telescopic member 5 can drive the dispersion and blocking component 6 to block the feed inlet 2.

[0060] The driving assembly 7 is installed on the upper part of the screening box 1, and the driving assembly 7 can drive the dispersion and plugging assembly 6 to rotate to disperse the graphite; the dispersion and plugging assembly 6 can match the bottom of the feed port 2;

[0061] By cooperating with the dispersing plugging assembly 6 and the driving assembly 7, the impact force of the graphite on the screen 11 can be reduced to reduce the damage caused by the graphite to the screen 11, thereby increasing the service life of the screen 11. At the same time, the position where the graphite falls on the screen 11 can be controlled so that the graphite is evenly dispersed on the screen 11, thereby increasing the utilization rate of the mesh holes on the screen 11 and thus improving the screening efficiency.

[0062] The drawer assembly 9 is provided in a plurality of groups, and the drawer assembly 9 can enter and exit the screening box 1 through the opening 8;

[0063] Specifically, each group of drawer components 9 corresponds to one opening 8, and similarly, each group of drawer components 9 corresponds to one second discharge port 16; the number of drawer components 9 is consistent with the number of openings 8;

[0064] The drawer assembly 9 is provided with a screen frame 10, and the screen 11 is installed in the screen frame 10;

[0065] Specifically, refer to Figure 8 , ribs 28 are provided on both sides of the screen frame 10 along the width direction of the screen frame 10 to prevent graphite from falling from both sides of the screen frame 10 due to vibration, thereby ensuring the screening effect;

[0066] The moving assembly 12 is provided with a plurality of groups, and the moving assembly 12 is located above the drawer assembly 9;

[0067] Specifically, the number of the moving components 12 is consistent with the number of the drawer components 9, and each group of the moving components 12 is located above the corresponding group of the drawer components 9;

[0068] The moving component 12 is provided with a cleaning component 13, and the cleaning component 13 is used to clean the screen 11;

[0069] The first knocking components 14 are installed on both sides of the cleaning component 13, and the first knocking components 14 are used to knock the screen frame 10;

[0070] Specifically, refer to Fig. 9 and Fig.10 When the moving component 12 drives the cleaning component 13 to move, the cleaning component 13 can rotate to clean the screen 11 to prevent the screen 11 from being blocked after long-term use, thereby ensuring the screening efficiency of the screen 11. While cleaning, the cleaning component 13 drives the first knocking component 14 to rotate to knock the screen frame 10, so that the screen 11 vibrates, further improving the dispersion effect of graphite and the screening efficiency of the screen 11.

[0071] The second telescopic member 15 is located at a side of the screening box 1 away from the opening 8, and a plurality of the second telescopic members 15 are provided. The second telescopic members 15 are located below the drawer assembly 9, and the second telescopic members 15 support the bottom of the drawer assembly 9 away from the opening 8;

[0072] Specifically, the first telescopic member 5 and the second telescopic member 15 can be a cylinder, an electric cylinder or a hydraulic cylinder, preferably a cylinder, which is a prior art and will not be described in detail here; every 2-4 second telescopic members 15 form a group, corresponding to a group of drawer components 9;

[0073] Reference Figure 6 , Figure 7 and Fig.11 A first support plate 22 is installed below the side of the screening box 1 close to the opening 8, and the top surface of the first support plate 22 is flush with the bottom surface of the opening 8; a second mounting plate 25 is installed on the side of the screening box 1 away from the opening 8, and a second protective shell 24 is installed on the second mounting plate 25 to protect the second telescopic member 15. The second telescopic member 15 is arranged in the second protective shell 24, and the second telescopic member 15 is installed on the second mounting plate 25. The telescopic end of the second telescopic member 15 extends out of the top of the second protective shell 24, and the second support plate 23 is installed on the top of the telescopic end of the second telescopic member 15 , the bottom of the drawer assembly 9 away from the opening 8 is supported by the second support plate 23, wherein the second telescopic member 15 is slidably connected to the second protective shell 24, and initially, the second telescopic member 15 is in an extended state, so that the top surface of the second support plate 23 is flush with the top surface of the first support plate 22, so that the screen 11 is in a horizontal state, and the first support plate 22 and the second support plate 23 support both sides of the bottom of the drawer assembly 9. At this time, the screen frame 10 is located above the corresponding second discharge port 16 to prevent incompletely screened graphite from being discharged from the second discharge port 16;

[0074] When the screened graphite on the screen 11 needs to be discharged, the telescopic end of the second telescopic member 15 is lowered, so that the screen 11 on the drawer assembly 9 is tilted, and the outlet in the tilting direction corresponds to the second discharge port 16, so that the graphite on the screen 11 is discharged;

[0075] Reference Fig.12 The second knocking component 17 is located on one side of the second telescopic member 15, and the second knocking component 17 is used to knock the bottom of the drawer component 9;

[0076] Specifically, the second knocking components 17 are provided with a plurality of groups, and the number of the second knocking components 17 is consistent with the number of the drawer components 9. Each group of the second knocking components 17 is located below the drawer components 9 of the corresponding group. When the screen 11 is in an inclined state, the graphite on the screen 11 can be quickly discharged by knocking the bottom of the drawer components 9, thereby improving the screening effect of the subsequent graphite.

[0077] The driving assembly 7 is used to drive the moving assembly 12 through the first linkage assembly 18;

[0078] The driving assembly 7 is used to drive the second striking assembly 17 through the first linkage assembly 18 and the second linkage assembly 19 .

[0079] Through the mutual cooperation of the driving component 7, the first linkage component 18 and the second linkage component 19, the driving of the dispersed blocking component 6, the moving component 12, the cleaning component 13, the first knocking component 14 and the second knocking component 17 can be realized through a single drive, without setting up multiple sets of drives, which not only saves manpower and material resources, but also helps to simplify equipment and reduce costs.

[0080] Reference Figure 4 and Figure 5 In this embodiment, the dispersion and blocking assembly 6 includes a first conical plate 61 located above the first telescopic member 5, a plurality of dispersion holes 62 are opened on the first conical plate 61, a plurality of arc guide plates 63 are evenly distributed along the circumference of the first conical plate 61, a plurality of support rods 64 are installed on the first conical plate 61, a mounting frame 65 is installed on the top of the support rod 64, a plurality of elastic protrusions 30 are circumferentially spaced between the outer wall of the mounting frame 65 and the lower part of the feed port 2, a second conical plate 66 is provided on the mounting frame 65, and a plurality of distribution holes 67 are evenly opened on the second conical plate 66 along the circumference.

[0081] Specifically, the top of the first conical plate 61 is an arc transition, and the top surface of the first conical plate 61 can match the bottom of the feed port 2. At regular intervals, the first telescopic member 5 can drive the first conical plate 61 to rise, and block the feed port 2 to prevent too much graphite from entering the screening box 1, causing screening difficulties. The amount of graphite entering the screening box 1 can be controlled to ensure the working efficiency of the screening box 1; the dispersion holes 62 are in the shape of an eight-shaped hole with a small top and a large bottom, so that the graphite is more easily dispersed after passing through the dispersion holes 62; the number of arc guide plates 63 is 6-10, and by setting The arc guide plate 63 guides and throws out the graphite. When the graphite leaves the first conical plate 61, the graphite can continue to be further dispersed in the air along the guidance of the arc guide plate 63, so that the graphite is evenly dispersed on the screen 11, so as to improve the utilization rate of the mesh holes on the screen 11, thereby improving the screening efficiency; the number of support rods 64 is 3-6, which support the mounting frame 65; there is a gap between the outer wall of the mounting frame 65 and the inner wall of the feed port 2, and the gap is used to set the elastic protrusion 30; the mounting frame 65 can move in the vertical direction along the feed port 2; the elastic protrusion The block 30 is convex or hemispherical. Only when the first conical plate 61 rotates, the elastic protrusion 30 of the mounting frame 65 will cooperate with the elastic protrusion 30 at the lower part of the feed port 2. The number of the elastic protrusions 30 of the mounting frame 65 is 6-16. Similarly, the number of the elastic protrusions 30 at the lower part of the feed port 2 is also 6-16. The top of the second conical plate 66 is an arc transition. The number of the distribution holes 67 is 6-10, which is consistent with the number of the arc guide plates 63, so that the graphite can fall between the adjacent arc guide plates 63 after passing through the distribution holes 67, which is convenient for graphite to be distributed. Distribution is performed to prevent the accumulated graphite from falling directly onto the first conical plate 61. It falls from one direction of the first conical plate 61, which reduces the dispersion effect. When the first conical plate 61 rotates, the second conical plate 66 and the mounting frame 65 located at the lower part of the feed port 2 rotate synchronously, driving the elastic protrusion 30 of the mounting frame 65 to contact and separate from the elastic protrusion 30 at the lower part of the feed port 2, thereby causing vibration at the lower part of the feed port 2, preventing too much graphite from entering the feed port 2, causing the graphite to be blocked in the feed port 2 and unable to fall, thereby ensuring work efficiency.

[0082] Reference Figure 1 and Figure 4 In this embodiment, the driving assembly 7 includes a motor 71 installed on one side of the upper part of the screening box 1, and a first rotating shaft 72 is installed on the output end of the motor 71. The other end of the first rotating shaft 72 extends into the screening box 1 and is installed with a first bevel gear 73. The top of the telescopic end of the first telescopic member 5 is rotatably connected to a second bevel gear 74 that meshes with the first bevel gear 73. A second rotating shaft 75 is installed on the top of the second bevel gear 74, and the top of the second rotating shaft 75 is connected to the bottom of the first conical plate 61.

[0083] Specifically, the motor 71 is installed on a transverse plate, one side of which is connected to the side wall of the screening box 1 ; the motor 71 is preferably a servo motor, which can be used in conjunction with a reducer; there is no interference between the first conical plate 61 and the first rotating shaft 72 .

[0084] Reference Figure 4 A first protective shell 21 is provided on the first mounting plate 4, and the first protective shell 21 is sleeved on the outside of the first telescopic member 5, the first bevel gear 73, the second bevel gear 74 and the second rotating shaft 75, wherein the first rotating shaft 72 is rotationally connected to the first protective shell 21; the second rotating shaft 75 is slidingly matched with the first protective shell 21.

[0085] When the first conical plate 61 is needed to disperse the graphite, the motor 71 is started, and the motor 71 drives the first rotating shaft 72 to rotate, thereby driving the first bevel gear 73 to rotate, the first bevel gear 73 drives the second bevel gear 74 to rotate, and the second bevel gear 74 drives the second rotating shaft 75 to rotate, thereby driving the first conical plate 61 to rotate, thereby achieving dispersion of the graphite; when the first conical plate 61 is needed to block the feed port 2, the telescopic end of the first telescopic member 5 is extended, so that the second bevel gear 74 is separated from the first bevel gear 73, and the first conical plate 61 stops rotating and matches the bottom of the feed port 2 to block the feed port 2, and when blocking, the arc guide plate 63 does not interfere with the inner top wall of the screening box 1.

[0086] Reference Figure 6 and Figure 7 In this embodiment, the drawer assembly 9 includes a bottom frame 91 and a top frame 92, and a plurality of telescopic rods 93 are provided between the bottom frame 91 and the top frame 92. The outer sleeve of the telescopic rod 93 is provided with a spring 94 connected to the bottom frame 91 and the top frame 92. One end of the bottom frame 91 is rotatably connected to the lower part of the connecting plate 95, and a handle 96 is provided on the connecting plate 95. A screen frame 10 is installed on the top frame 92.

[0087] Specifically, one end of the spring 94 is connected to the bottom frame 91, and the other end of the spring 94 is connected to the top frame 92; the size of the connecting plate 95 matches the size of the opening 8; the lower part of the connecting plate 95 is hinged to one end of the bottom frame 91; the screen frame 10 and the top frame 92 can be installed and matched by screws or bolts and nuts; the bottom frame 91 is taken out or inserted from the opening 8 by the handle 96, and the bottom frame 91 drives the top frame 92 and the screen frame 10 to be taken out or inserted synchronously by the telescopic rod 93; the bottom sides of the bottom frame 91 are supported by the first support plate 22 and the second support plate 23;

[0088] Several groups of drawer assemblies 9 can be set according to the actual desired fineness of screening to finely screen the graphite, and the mesh size of the screen 11 decreases from top to bottom. In this embodiment, there are two groups of drawer assemblies 9.

[0089] The bottom of the second discharge port 16 extends into a part of the screening box 1, and does not interfere with the rotation of the second support plate 23. A part of the top frame 92 extends from the side of the screen frame 10 close to the second discharge port 16. This part is located directly above the part of the bottom of the second discharge port 16 extending into the screening box 1. When the screen frame 10 rotates, the bottom of the side of the screen frame 10 close to the second discharge port 16 will move slightly inward, and extend into a part of the screening box 1 through the bottom of the second discharge port 16. When the screen 11 is tilted, the graphite thereon will fall into the corresponding second discharge port 16, and will not fall to the bottom of the screening box 1 and be discharged from the first discharge port 3, thereby avoiding screening errors.

[0090] Pins 26 are installed on both sides above the opening 8 of the screening box 1, and a rotating baffle 27 is rotatably provided on the pin 26. When the connecting plate 95 is inserted into the opening 8, the rotating baffle 27 rotates to block both sides of the connecting plate 95 to prevent the connecting plate 95 from being moved out of the opening 8 due to accidents or shaking, thereby affecting the work efficiency.

[0091] Reference Fig. 9 and Fig.10 In this embodiment, the moving assembly 12 includes a reciprocating screw rod 121 rotatably arranged on one side of the screening box 1 and a guide rod 123 arranged on the other side of the screening box 1, a threaded block 122 is threadedly connected to the reciprocating screw rod 121, a slider 124 is slidably provided on the guide rod 123, and a cleaning brush assembly 13 is rotatably provided between the threaded block 122 and the slider 124.

[0092] Specifically, the reciprocating screw rod 121 is arranged in parallel with the guide rod 123 and is parallel to the length direction of the screen frame 10; by arranging the guide rod 123, the slider 124 is guided, so that the movement of the cleaning assembly 13 is more stable;

[0093] Reference Fig. 9 and Fig.10 In this embodiment, the brush assembly 13 includes a connecting shaft 131 rotatably arranged between the threaded block 122 and the slider 124, a brush roller 132 is installed on the connecting shaft 131, and bristles 133 are provided on the brush roller 132. Gears 134 are installed on both sides of the connecting shaft 131, and racks 135 meshing with the gears 134 are installed on both sides of the screening box 1. The first knocking assembly 14 is installed on both sides of the connecting shaft 131.

[0094] Specifically, the connecting shaft 131 can be located between the threaded block 122 and the lower part of the slider 124; the bristles 133 can contact the surface of the screen 11 when it is horizontal, and clean the screen 11 to prevent the screen 11 from being blocked after long-term use; the rack 135 is parallel to the length direction of the screen frame 10, and both ends of the rack 135 are installed on the inner wall of the screening box 1; the cleaning roller 132 and the first knocking assembly 14 are located between the two retaining edges 28 on the screen frame 10.

[0095] Reference Fig. 9 and Fig.10 In this embodiment, the first knocking assembly 14 includes a first ring plate 141 installed on the connecting shaft 131, and a plurality of first connecting rods 142 are evenly provided on the outer wall of the first ring plate 141. A first knocking head 143 is installed at one end of the first connecting rod 142 away from the first ring plate 141, and the first knocking head 143 can knock on the top of the screen frame 10.

[0096] Specifically, the first connecting rod 142 is arranged along the radial direction of the first ring plate 141; one end of the first connecting rod 142 is connected to the first ring plate 141, and the other end of the first connecting rod 142 is installed with a first knocking head 143; the number of the first connecting rods 142 is 2-8, which is arranged according to the actual knocking situation required;

[0097] When the reciprocating screw 121 rotates, the threaded block 122 is driven to move on the reciprocating screw 121, thereby driving the cleaning brush roller 132 to move. At the same time, the gear 134 on the connecting shaft 131 is driven by the rack 135, so that the connecting shaft 131 rotates, thereby driving the cleaning brush roller 132 to rotate, and the bristles 133 are used to brush the screen 11 to prevent the screen 11 from being blocked after long-term use. At the same time, the connecting shaft 131 drives the first ring plate 141 to rotate, and the first ring plate 141 drives the first connecting rod 142 to rotate, and the top of the screen frame 10 is knocked by the first knocking head 143, so that the screen 11 vibrates, which further improves the dispersion effect of graphite and the screening efficiency of the screen 11.

[0098] Reference Fig.12 In this embodiment, the second knocking assembly 17 includes a seventh rotating shaft 171 rotatably arranged on one side of the screening box 1, and the seventh rotating shaft 171 is located on one side of the second telescopic member 15, and second ring plates 172 are installed on both sides of the seventh rotating shaft 171, and a plurality of second connecting rods 173 are evenly arranged on the outer side wall of the second ring plate 172, and a second knocking head 174 is installed at one end of the second connecting rod 173 away from the second ring plate 172, and the second knocking head 174 can knock on the bottom of the bottom frame 91.

[0099] Specifically, the seventh rotating shaft 171 is parallel to the width direction of the screen frame 10, that is, the seventh rotating shaft 171 and the reciprocating screw rod 121 are vertically arranged; the number of the second connecting rods 173 is 2-8, which is set according to the actual knocking situation; when the second telescopic member 15 descends and the screened graphite is discharged, the second knocking head 174 can knock on the bottom of both sides of the bottom frame 91, so that the graphite on the screen 11 can be quickly discharged, thereby improving the screening effect of subsequent graphite and ensuring the working efficiency of the screening box 1.

[0100] Reference Figures 1 to 3 In this embodiment, the first linkage assembly 18 includes a third bevel gear 181 installed on the first rotating shaft 72, one side of the third bevel gear 181 is meshed with the fourth bevel gear 182, the fourth bevel gear 182 is connected to one end of the third rotating shaft 183, and the other end of the third rotating shaft 183 is installed with a fifth bevel gear 184, one side of the fifth bevel gear 184 is meshed with the sixth bevel gear 185, the sixth bevel gear 185 is connected to a fourth rotating shaft 186 rotatably connected to the side wall of the screening box 1, a first pulley 187 is installed on the fourth rotating shaft 186, one end of the reciprocating screw rod 121 extends to the outside of the screening box 1 and is installed with a second pulley 188, and a first belt 189 is connected between the first pulley 187 and the second pulley 188.

[0101] Specifically, the third bevel gear 181 is installed on a section of the first rotating shaft 72 located outside the screening box 1; the third bevel gear 181 and the fourth bevel gear 182 are arranged perpendicular to each other; the fifth bevel gear 184 and the sixth bevel gear 185 are arranged perpendicular to each other; a fixed plate is installed on the side wall of the screening box 1, and the fixed plate is rotatably connected to the third rotating shaft 183 to support the third rotating shaft 183; there can be several second pulleys 188, and the number of second pulleys 188 is consistent with the number of moving components 12, and the first belt 189 is driven to rotate through the first pulley 187, and several second pulleys 188 are driven to rotate synchronously.

[0102] Reference Figures 1 to 3 In this embodiment, the second linkage assembly 19 includes a seventh bevel gear 191 meshingly connected to one side of the sixth bevel gear 185, the seventh bevel gear 191 is connected to one end of the fifth rotating shaft 192, the other end of the fifth rotating shaft 192 is equipped with a third pulley 193, and a sixth rotating shaft 194 is rotatably connected on the side wall of the screening box 1 directly above the seventh rotating shaft 171, a fourth pulley 195 and a fifth pulley 197 are installed on the sixth rotating shaft 194, a second belt 196 is connected between the third pulley 193 and the fourth pulley 195, one end of the seventh rotating shaft 171 extends to the outside of the screening box 1 and is equipped with a sixth pulley 198, and a third belt 199 is connected between the fifth pulley 197 and the sixth pulley 198.

[0103] Specifically, the sixth bevel gear 185 and the seventh bevel gear 191 are arranged perpendicular to each other; the fifth rotating shaft 192 is also rotatably connected to the fixed plate installed on the side wall of the screening box 1 to support the fifth rotating shaft 192, and the fixed plate can be L-shaped; the sixth pulley 198 can be provided with a plurality of sixth pulleys 198, the number of which is consistent with the number of the second knocking assembly 17, and the third belt 199 is driven to rotate by the fifth pulley 197, and the plurality of sixth pulleys 198 are driven to rotate synchronously;

[0104] Preferably, the pulley may be a toothed synchronous pulley, and the belt may be a toothed synchronous belt;

[0105] Wherein, a protective cover (not shown in the figure) is provided outside the first linkage component 18 and the second linkage component 19 to protect the first linkage component 18 and the second linkage component 19 .

[0106] Working principle: When the device is used, graphite is transported to the screening box 1 through the feed port 2, and the motor 71 is started. The motor 71 drives the first rotating shaft 72 to rotate, thereby driving the first bevel gear 73 to rotate, the first bevel gear 73 drives the second bevel gear 74 to rotate, and the second bevel gear 74 drives the second rotating shaft 75 to rotate, thereby driving the first conical plate 61 to rotate, and then the mounting frame 65 and the second conical plate 66 rotate, and the graphite is distributed through the distribution hole 67 on the second conical plate 66, and then the graphite falls. On the first conical plate 61, with the cooperation of the dispersion holes 62 and the arc guide plate 63, the graphite is dispersed, which can reduce the impact force of the graphite on the screen 11 to reduce the damage caused by the graphite to the screen 11, and improve the service life of the screen 11. At the same time, the position where the graphite falls on the screen 11 can be controlled, so that the graphite is evenly dispersed on the screen 11. At the same time, the first rotating shaft 72 drives the third bevel gear 181 to rotate, and the third bevel gear 181 drives the fourth bevel gear 182 to rotate, and the fourth bevel gear 182 rotates through the third The rotating shaft 183 drives the fifth bevel gear 184 to rotate, the fifth bevel gear 184 drives the sixth bevel gear 185 to rotate, the sixth bevel gear 185 drives the first pulley 187 to rotate through the fourth rotating shaft 186, the first pulley 187 drives the second pulley 188 to rotate synchronously through the first belt 189, the second pulley 188 drives the reciprocating screw rod 121 to rotate, thereby driving the threaded block 122 to move on the reciprocating screw rod 121, thereby driving the cleaning brush roller 132 to move, and at the same time, the gear 134 on the connecting shaft 131 Driven by the rack 135, the connecting shaft 131 rotates, thereby driving the cleaning roller 132 to rotate, and the screen 11 is cleaned by the bristles 133 to prevent the screen 11 from being blocked after long-term use. At the same time, the connecting shaft 131 drives the first ring plate 141 to rotate, and the first ring plate 141 drives the first connecting rod 142 to rotate, and the top of the screen frame 10 is knocked by the first knocking head 143, so that the screen 11 vibrates, further improving the dispersion effect of graphite and the screening efficiency of the screen 11.

[0107] After a period of time, the telescopic end of the first telescopic member 5 is extended, so that the second bevel gear 74 is separated from the first bevel gear 73, and the first conical plate 61 stops rotating, matches with the bottom of the feed port 2, and blocks the feed port 2 to prevent too much graphite from entering the screening box 1, causing screening difficulties;

[0108] After the graphite is completely screened, the telescopic end of the second telescopic member 15 descends, so that the screen 11 on the top frame 92 is in an inclined state, and the outlet in the inclined direction corresponds to the second discharge port 16, so that the graphite on the screen 11 is discharged. At the same time, the sixth bevel gear 185 drives the seventh bevel gear 191 to rotate, and the seventh bevel gear 191 drives the third pulley 193 to rotate through the fifth rotating shaft 192, and the third pulley 193 drives the fourth pulley 195 to rotate through the second belt 196, and the fourth pulley 195 drives the fourth pulley 195 through the fifth rotating shaft 192. The sixth rotating shaft 194 drives the fifth pulley 197 to rotate, the fifth pulley 197 drives the sixth pulley 198 to rotate synchronously through the third belt 199, the sixth pulley 198 drives the seventh rotating shaft 171 to rotate, the seventh rotating shaft 171 drives the second ring plate 172 to rotate, the second ring plate 172 drives the second connecting rod 173 to rotate, and the second knocking head 174 can knock the bottom of both sides of the bottom frame 91, so that the graphite on the screen 11 can be quickly discharged, thereby improving the screening effect of subsequent graphite;

[0109] When all the graphite is discharged, the telescopic end of the second telescopic member 15 is extended, so that the top surface of the second support plate 23 is flush with the top surface of the first support plate 22, so that the screen 11 is in a horizontal state again, and then the telescopic end of the first telescopic member 5 is lowered, so that the second bevel gear 74 is meshed with the first bevel gear 73 again, and the feed port 2 is reopened, so that the graphite enters the screening box 1 for further screening, and the above steps are repeated until all the graphite is screened;

[0110] When the screen 11 needs to be replaced, the bottom frame 91 is taken out or inserted from the opening 8 through the handle 96, and the bottom frame 91 drives the top frame 92 and the screen frame 10 to be taken out or inserted synchronously through the telescopic rod 93, so that the screen frame 10 is directly replaced. After replacement, the bottom frame 91 and the top frame 92 are reinserted into the screening box 1 from the opening 8, thereby realizing the function of quickly replacing the screen 11 and improving work efficiency.

[0111] The contents not described in detail in this specification belong to the prior art known to professional and technical personnel in this field.

[0112] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit the scope of protection of the invention. Obviously, the described embodiments are only some embodiments of the present invention, rather than all embodiments. Based on these embodiments, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention. Although the present invention has been described in detail with reference to the above embodiments, ordinary technicians in this field can still combine, add, delete or make other adjustments to the features in the various embodiments of the present invention according to the circumstances without conflict, without making creative work, so as to obtain different other technical solutions that do not deviate from the concept of the present invention in essence, and these technical solutions also belong to the scope of protection of the present invention.

Claims

1. A screening device for graphite production, characterized in that: include: A screening box (1), wherein a feed port (2) is provided at the top of the screening box (1), a first discharge port (3) is provided at the bottom of the screening box (1), a first mounting plate (4) is installed at the upper inner portion of the screening box (1), a first telescopic member (5) is installed on the first mounting plate (4), a plurality of openings (8) are provided on one side of the screening box (1), and a plurality of second discharge ports (16) are provided on the other side of the screening box (1); a dispersion and blocking component (6), wherein the dispersion and blocking component (6) is located directly above the telescopic end of the first telescopic member (5), and the dispersion and blocking component (6) is located directly below the feed inlet (2), and the first telescopic member (5) can drive the dispersion and blocking component (6) to block the feed inlet (2); A driving assembly (7), wherein the driving assembly (7) is mounted on the upper part of the screening box (1), and the driving assembly (7) is capable of driving the dispersion and plugging assembly (6) to rotate, thereby dispersing the graphite; A drawer assembly (9), wherein the drawer assembly (9) is provided in a plurality of groups, and the drawer assembly (9) can enter and exit the screening box (1) through the opening (8); A screen (11), wherein a screen frame (10) is installed on the drawer assembly (9), and the screen (11) is installed in the screen frame (10); A moving assembly (12), wherein the moving assembly (12) is provided with a plurality of groups, and the moving assembly (12) is located above the drawer assembly (9); A cleaning and brushing component (13), wherein the moving component (12) is provided with a cleaning and brushing component (13), and the cleaning and brushing component (13) is used to clean the screen (11); A first knocking assembly (14), wherein the first knocking assembly (14) is installed on both sides of the cleaning assembly (13), and the first knocking assembly (14) is used to knock the screen frame (10); a second telescopic member (15), the second telescopic member (15) being located on a side of the screening box (1) away from the opening (8), a plurality of second telescopic members (15) being provided, the second telescopic members (15) being located below the drawer assembly (9), and the second telescopic members (15) supporting the bottom of the drawer assembly (9) on a side away from the opening (8); A second knocking component (17), the second knocking component (17) being located on one side of the second telescopic member (15), and the second knocking component (17) being used to knock on the bottom of the drawer component (9); A first linkage component (18), wherein the driving component (7) is used to drive the moving component (12) via the first linkage component (18); A second linkage component (19), wherein the driving component (7) is used to drive the second striking component (17) via the first linkage component (18) and the second linkage component (19); The dispersion and blocking assembly (6) comprises a first conical plate (61) located above the first telescopic member (5), a plurality of dispersion holes (62) being provided on the first conical plate (61), a plurality of arc guide plates (63) being evenly distributed along the circumference of the first conical plate (61), a plurality of support rods (64) being installed on the first conical plate (61), a mounting frame (65) being installed on the top of the support rods (64), a plurality of elastic protrusions (30) being provided at intervals along the circumference on the outer side wall of the mounting frame (65) and the lower part of the feed port (2), a second conical plate (66) being provided on the mounting frame (65), a plurality of distribution holes (67) being evenly distributed along the circumference of the second conical plate (66).

2. The screening device for graphite production according to claim 1, characterized in that: The driving assembly (7) comprises a motor (71) mounted on one side of the upper portion of the screening box (1); a first rotating shaft (72) is mounted on the output end of the motor (71); the other end of the first rotating shaft (72) extends into the screening box (1) and is mounted with a first bevel gear (73); the top of the telescopic end of the first telescopic member (5) is rotatably connected to a second bevel gear (74) meshing with the first bevel gear (73); a second rotating shaft (75) is mounted on the top of the second bevel gear (74); and the top of the second rotating shaft (75) is connected to the bottom of the first conical plate (61).

3. The screening device for graphite production according to claim 2, characterized in that: The drawer assembly (9) comprises a bottom frame (91) and a top frame (92); a plurality of telescopic rods (93) are provided between the bottom frame (91) and the top frame (92); a spring (94) connected to the bottom frame (91) and the top frame (92) is sleeved on the outside of the telescopic rods (93); one end of the bottom frame (91) is rotatably connected to the lower part of a connecting plate (95); a handle (96) is provided on the connecting plate (95); and a screen frame (10) is installed on the top frame (92).

4. The screening device for graphite production according to claim 3, characterized in that: The moving assembly (12) comprises a reciprocating screw rod (121) rotatably arranged on one side of the screening box (1) and a guide rod (123) arranged on the other side of the screening box (1); a threaded block (122) is threadedly connected to the reciprocating screw rod (121); a sliding block (124) is slidably arranged on the guide rod (123); and a cleaning brush assembly (13) is rotatably arranged between the threaded block (122) and the sliding block (124).

5. The screening device for graphite production according to claim 4, characterized in that: The cleaning brush assembly (13) comprises a connecting shaft (131) rotatably arranged between a threaded block (122) and a sliding block (124); a cleaning brush roller (132) is mounted on the connecting shaft (131); bristles (133) are mounted on the cleaning brush roller (132); gears (134) are mounted on both sides of the connecting shaft (131); racks (135) meshing with the gears (134) are mounted on both sides of the screening box (1); and a first knocking assembly (14) is mounted on both sides of the connecting shaft (131).

6. The screening device for graphite production according to claim 5, characterized in that: The first knocking assembly (14) comprises a first ring plate (141) mounted on a connecting shaft (131); a plurality of first connecting rods (142) are evenly arranged on an outer side wall of the first ring plate (141); a first knocking head (143) is mounted on one end of the first connecting rod (142) away from the first ring plate (141); and the first knocking head (143) is capable of knocking on the top of the screen frame (10).

7. The screening device for graphite production according to claim 4, characterized in that: The second knocking assembly (17) comprises a seventh rotating shaft (171) rotatably arranged on one side of the screening box (1), and the seventh rotating shaft (171) is located on one side of the second telescopic member (15), second ring plates (172) are installed on both sides of the seventh rotating shaft (171), a plurality of second connecting rods (173) are evenly arranged on the outer side wall of the second ring plate (172), and a second knocking head (174) is installed at one end of the second connecting rod (173) away from the second ring plate (172), and the second knocking head (174) can knock on the bottom of the bottom frame (91).

8. The screening device for graphite production according to claim 7, characterized in that: The first linkage assembly (18) comprises a third bevel gear (181) mounted on the first rotating shaft (72), one side of the third bevel gear (181) being meshed with a fourth bevel gear (182), the fourth bevel gear (182) being connected to one end of the third rotating shaft (183), a fifth bevel gear (184) being mounted on the other end of the third rotating shaft (183), one side of the fifth bevel gear (184) being meshed with a sixth bevel gear (185), the sixth bevel gear (185) being connected to a fourth rotating shaft (186) rotatably connected to a side wall of the screening box (1), a first pulley (187) being mounted on the fourth rotating shaft (186), one end of the reciprocating screw rod (121) extending to the outside of the screening box (1) being mounted with a second pulley (188), a first belt (189) being connected between the first pulley (187) and the second pulley (188).

9. The screening device for graphite production according to claim 8, characterized in that: The second linkage assembly (19) comprises a seventh bevel gear (191) meshingly connected to one side of the sixth bevel gear (185); the seventh bevel gear (191) is connected to one end of a fifth rotating shaft (192); a third pulley (193) is mounted on the other end of the fifth rotating shaft (192); a sixth rotating shaft (194) is rotatably connected to the side wall of the screening box (1) located directly above the seventh rotating shaft (171); a fourth pulley (195) and a fifth pulley (197) are mounted on the sixth rotating shaft (194); a second belt (196) is connected between the third pulley (193) and the fourth pulley (195); one end of the seventh rotating shaft (171) extends to the outside of the screening box (1) and is mounted with a sixth pulley (198); a third belt (199) is connected between the fifth pulley (197) and the sixth pulley (198).

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