Mechanical exfoliation device for graphene production

Abstract

The application relates to the technical field of graphene, in particular to a mechanical peeling device for graphene production, which comprises a grinding cylinder, an adjusting mechanism is arranged on one side of the grinding cylinder, a screening mechanism is arranged on the side of the grinding cylinder, a supporting table is further arranged outside the grinding cylinder, the screening mechanism comprises a first rotating shaft rotating on the supporting table, and a second gear and a third gear are arranged on the two sides of the first rotating shaft respectively. The purpose of the application is to extrude the second spring through the weight inside the waste box, drive the third connecting rod to move, adjust the moving distance of the control column, control the exposure degree of the second groove inside the discharging pipe, control the amount of dispersing agent added into the pushing pipe in the process of one reciprocating motion of the pushing block, enhance the quality of the produced graphene powder, avoid the influence of blindly adding the dispersing agent on the preparation of the graphene, and avoid the waste of the dispersing agent resources.

Description

Technical Field

[0001] This invention relates to the field of graphene technology, specifically to a mechanical peeling device for graphene production. Background Technology

[0002] Graphene is a two-dimensional carbon nanomaterial in which carbon atoms form a honeycomb structure of six-membered rings with sp2 hybrid orbitals. It is a carbon allotrope with a high specific surface area and excellent physical, chemical and electrochemical properties, as well as excellent structural, electronic, mechanical, thermal conductivity, optical transparency, intrinsic charge mobility, mechanical strength and elasticity. As a highly efficient electrode material, it is widely used in lithium batteries.

[0003] Existing mechanical exfoliation devices for graphene production require the manual addition of dispersants to increase the yield of qualified graphene powder in the product. However, adding too much dispersant manually will waste dispersant resources, and adding too little dispersant can easily affect the product qualification rate. Summary of the Invention

[0004] The purpose of this invention is to provide a method in which the weight inside the waste bin compresses the second spring, thereby driving the third link to move. The distance the control column moves is adjusted, thereby controlling the degree of exposure of the second groove inside the feed tube. This controls the amount of dispersant added inside the feed tube during the reciprocating motion of the push block, thereby enhancing the quality of the produced graphene powder. At the same time, it avoids the negative impact of blindly adding dispersant on graphene preparation and the waste of dispersant resources.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a mechanical stripping device for graphene production, comprising a grinding cylinder, an adjustment mechanism on one side of the grinding cylinder, a screening mechanism on one side of the grinding cylinder, and a support platform on the outside of the grinding cylinder; The screening mechanism includes a first rotating shaft that rotates on a support platform. A second gear and a third gear are respectively arranged on both sides of the first rotating shaft. A fourth gear meshes with one side of the third gear. A screening column is arranged on one side of the fourth gear. A guide column is arranged on the outer side of the screening column. A collection bin is fixedly arranged at the bottom of the guide column. A waste bin is arranged at the bottom of one side of the screening column. A telescopic sleeve is arranged at the bottom of the waste bin. A third connecting rod is arranged on one side of the waste bin. A first lead screw is arranged at one end of the first rotating shaft. A cleaning sleeve is arranged on the first lead screw. Four sets of squeeze plugs are arranged on the cleaning sleeve. The adjusting mechanism includes a storage bin, a fixed rod on the outside of the storage bin, the bottom of the fixed rod being connected to a support platform, a discharge pipe at the bottom of the storage bin, a control column inside the discharge pipe, one side of the control column being connected to a third connecting rod, a push tube at the bottom of the discharge pipe, a fifth gear on one side of the push tube, a second rotating shaft at one end of the fifth gear, a second lead screw on one side of the second rotating shaft, and a push block on the second lead screw.

[0006] Preferably, a motor is fixed to one side of the first rotating shaft, the bottom of the motor is fixedly connected to the support platform, a feed inlet is rotatably located on one side of the grinding cylinder, a discharge outlet is rotatably located on the other side of the grinding cylinder, one side of the second gear meshes with the first gear, and multiple sets of first connecting rods are provided inside the first gear, one side of the first connecting rod is fixedly connected to the grinding cylinder.

[0007] Preferably, the inner side of the fourth gear is provided with multiple sets of second connecting rods, one end of the second connecting rod is connected to the screening column, and one side of the screening column is connected to the discharge port.

[0008] Preferably, a telescopic column is provided on one side of the screening column, and one side of the telescopic column is connected to the waste bin.

[0009] Preferably, the bottom of the telescopic sleeve is provided with a support column, and the upper end of the support column is provided with a second spring, the upper end of the second spring being connected to the telescopic sleeve.

[0010] Preferably, a movable sleeve is provided on the first lead screw, and telescopic plates are respectively provided on both sides of the movable sleeve, with one side of the movable sleeve connected to the cleaning sleeve.

[0011] Preferably, a first spring is provided inside the squeeze plug, a squeeze column is provided at one end of the squeeze plug, and an inclined surface is provided on the squeeze column. The two sides of the first spring are respectively connected to the cleaning sleeve and the squeeze column.

[0012] Preferably, a baffle is provided on the third connecting rod, a first groove is provided on one side of the fixed rod, one end of the third connecting rod is inside the first groove, the fifth gear meshes with the first gear, and the size of the push block is adapted to the push tube.

[0013] Preferably, one end of the push tube is connected to the feed inlet, and a limiting rod is provided on the fixing rod, with one side of the limiting rod being rotatably connected to the fifth gear.

[0014] Preferably, the feed tube has a second groove inside.

[0015] Compared with the prior art, the beneficial effects of the present invention are: 1. This invention uses the weight inside the waste bin to compress the second spring, thereby driving the third link to move. By adjusting the distance the control column moves, the degree to which the second groove inside the feed tube is exposed is controlled. This controls the amount of dispersant added to the feed tube during the reciprocating motion of the push block, thereby enhancing the quality of the produced graphene powder. At the same time, it avoids the negative impact of blindly adding dispersant on graphene preparation and the waste of dispersant resources.

[0016] 2. This invention uses a rotating sieve column to guide qualified graphene powder into a guide column, which then collects it in a collection chamber. Meanwhile, larger graphene powder particles pass through the rotating sieve column into a telescopic column, which collects them in a waste bin for further processing. This method separates qualified and unqualified graphene products, thereby improving the quality of the produced graphene.

[0017] 3. In this invention, when the extrusion plug moves, the holes on the sieve column extrude the inclined surface of the extrusion column, while the extrusion column extrudes the extrusion column, causing the extrusion column to return to the inside of the extrusion plug. At the same time, when the extrusion plug moves to the hole on the sieve column, the first spring extrudes the first spring, causing the first spring to move in the hole, clearing the graphene powder blocking the hole. This prevents the holes on the sieve column from being blocked by graphene powder during operation, which would affect the screening of graphene and thus affect the normal operation of the device. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the overall structure of the present invention; Figure 3 This is a partial structural diagram of the screening mechanism of the present invention; Figure 4 This is a second schematic diagram of the partial structure of the screening mechanism of the present invention; Figure 5 This is a third schematic diagram of the partial structure of the screening mechanism of the present invention; Figure 6 This is one of the structural schematic diagrams of the adjustment mechanism of the present invention; Figure 7 This is a second schematic diagram of the adjustment mechanism of the present invention.

[0019] In the diagram: 1. Grinding cylinder; 11. Feed inlet; 12. Discharge outlet; 13. Support platform; 14. First gear; 15. First connecting rod; 2. Screening mechanism; 21. Motor; 22. First rotating shaft; 23. Second gear; 24. Third gear; 25. First lead screw; 26. Moving sleeve; 27. Cleaning sleeve; 28. Extrusion plug; 281. Extrusion column; 282. First spring; 29. ​​Fourth gear; 210. Second connecting rod; 211. Screening column; 212. Guide... 213. Column; 214. Collection bin; 215. Telescopic column; 216. Waste bin; 217. Telescopic sleeve; 218. Support column; 219. Second spring; 210. Telescopic plate; 2110. Third connecting rod; 211. Adjustment mechanism; 32. Fixed rod; 33. Storage bin; 34. Discharge pipe; 35. Baffle; 36. Control column; 37. Pushing pipe; 38. Pushing block; 39. Fifth gear; 30. Limiting rod; 311. Second rotating shaft; 312. Second lead screw. Detailed Implementation

[0020] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0021] The present invention provides a mechanical stripping device for graphene production, including a grinding cylinder 1, an adjustment mechanism 3 on one side of the grinding cylinder 1, a screening mechanism 2 on one side of the grinding cylinder 1, and a support platform 13 on the outside of the grinding cylinder 1. The screening mechanism 2 includes a first rotating shaft 22 that rotates on a support platform 13. A second gear 23 and a third gear 24 are respectively arranged on both sides of the first rotating shaft 22. A fourth gear 29 is meshed on one side of the third gear 24. A screening column 211 is arranged on one side of the fourth gear 29. A guide column 212 is arranged on the outside of the screening column 211. A collection bin 213 is fixedly arranged at the bottom of the guide column 212. A waste bin 215 is arranged at the bottom of one side of the screening column 211. A telescopic sleeve 216 is arranged at the bottom of the waste bin 215. A third connecting rod 218 is arranged on one side of the waste bin 215. A first lead screw 25 is arranged at one end of the first rotating shaft 22. A cleaning sleeve 27 is arranged on the first lead screw 25. Four sets of compression plugs 28 are arranged on the cleaning sleeve 27. The adjusting mechanism 3 includes a storage tank 32, a fixing rod 31 is provided on the outside of the storage tank 32, the bottom of the fixing rod 31 is connected to the support platform 13, a feeding pipe 33 is provided at the bottom of the storage tank 32, a control column 35 is provided inside the feeding pipe 33, one side of the control column 35 is connected to the third connecting rod 218, a pushing pipe 36 is provided at the bottom of the feeding pipe 33, a fifth gear 38 is provided on one side of the pushing pipe 36, a second rotating shaft 310 is provided at one end of the fifth gear 38, a second lead screw 311 is provided on one side of the second rotating shaft 310, and a pushing block 37 is provided on the second lead screw 311.

[0022] When using this device, graphite is added into the device through the feed inlet 11. The motor 21 drives the first rotating shaft 22 to rotate, which in turn drives the second gear 23 to rotate. The second gear 23 then drives the first gear 14 to rotate, which in turn drives the first connecting rod 15 to rotate. The first connecting rod 15 then drives the grinding cylinder 1 to rotate. The rotation of the grinding cylinder 1 grinds the graphite inside. After the grinding cylinder 1 rotates for a certain period of time, the graphene enters the screening column 211 through the discharge outlet 12. The rotation of the first rotating shaft 22 then drives the third gear 24 to rotate. The rotation of the third gear 24 drives the rotation of the fourth gear 29, which in turn drives the rotation of the screening column 211. The rotation of the screening column 211 guides qualified graphene powder into the guide column 212, and finally into the collection chamber 213 for collection. At the same time, graphene powder with larger particle size passes through the rotation of the screening column 211 into the telescopic column 214, and then into the waste bin 215 for collection, facilitating subsequent reprocessing. This achieves the separation of qualified and unqualified graphene products, improving the quality of the produced graphene.

[0023] Simultaneously, the rotation of the first rotating shaft 22 drives the first lead screw 25 to rotate, and the rotation of the first lead screw 25 drives the moving sleeve 26 to reciprocate. The reciprocating movement of the moving sleeve 26 drives the cleaning sleeve 27 to move, and the movement of the cleaning sleeve 27 drives the extrusion plug 28 to move. When the extrusion plug 28 moves, the holes on the screening column 211 extrude pressure on the inclined surface of the extrusion column 281, and the extrusion column 281 extrudes pressure on the extrusion plug 281, causing the extrusion column 281 to return to the inside of the extrusion plug 28. At the same time, when the extrusion plug 28 moves to the hole on the screening column 211, the first spring 282 extrudes pressure on the first spring 282, causing the first spring 282 to move in the hole, clearing the graphene powder blocking the hole. This prevents the holes on the screening column 211 from being blocked by graphene powder during operation, which would affect the screening of graphene and thus affect the normal operation of the device.

[0024] Simultaneously, substandard graphene powder enters the waste bin 215, increasing its mass and thus compressing the telescopic sleeve 216. This compresses the second spring 2162, causing the waste bin 215 to descend. The movement of the waste bin 215 moves the third connecting rod 218, which in turn moves the control column 35 at the other end. The movement of the control column 35 causes the second groove inside the feed pipe 33 to leak out, thus exposing the storage bin 32. The dispersant inside the feed tube 33 enters the push tube 36 through the second groove inside the feed tube 33. Simultaneously, the rotation of the second gear 23 drives the rotation of the first gear 14, which in turn drives the rotation of the fifth gear 38. The rotation of the fifth gear 38 drives the rotation of the second rotating shaft 310, which in turn drives the rotation of the second lead screw 311. The rotation of the second lead screw 311 drives the push block 37 to reciprocate. The reciprocating movement of the push block 37 pushes the dispersant inside the push tube 36 into the feed inlet 11 and into the grinding cylinder 1. The weight inside the waste bin 215 compresses the second spring 2162, thereby driving the third connecting rod 218 to move. The distance of movement of the control column 35 is adjusted to control the degree of exposure of the second groove inside the feed tube 33. This controls the amount of dispersant added to the push tube 36 during the reciprocating motion of the push block 37, thereby enhancing the quality of the produced graphene powder and avoiding the impact of blindly adding dispersant on graphene preparation and the waste of dispersant resources.

[0025] It should also be noted that when the pusher block 37 is reciprocating, it will still block the feed pipe 33 when it reaches the front end to prevent the dispersant inside the feed pipe 33 from being added to the rear end of the pusher block 37. At the same time, when the pusher block 37 is reciprocating, it will expose the connection between the feed pipe 33 and the pusher pipe 36 when it reaches a certain extent, so that the dispersant in the feed pipe 33 can be added to the pusher pipe 36.

[0026] In an optional embodiment, a motor 21 is fixed to one side of the first rotating shaft 22, and the bottom of the motor 21 is fixedly connected to the support platform 13. A feed inlet 11 is rotatably located on one side of the grinding cylinder 1, and a discharge outlet 12 is rotatably located on the other side of the grinding cylinder 1. One side of the second gear 23 meshes with the first gear 14. Multiple sets of first connecting rods 15 are provided inside the first gear 14, and one side of the first connecting rod 15 is fixedly connected to the grinding cylinder 1.

[0027] It should be noted that the material is fed through the inlet 11 and the product is sent out through the outlet 12. At the same time, the rotation of the motor 21 drives the first rotating shaft 22 to rotate, which in turn drives the second gear 23 and the third gear 24 to rotate. The rotation of the second gear 23 drives the first gear 14 to rotate, which in turn drives the first connecting rod 15 to rotate, which in turn drives the grinding cylinder 1 to rotate, thereby grinding the graphite added inside the grinding cylinder 1.

[0028] In an optional embodiment, a plurality of second connecting rods 210 are provided inside the fourth gear 29. One end of the second connecting rod 210 is connected to the screening column 211, and one side of the screening column 211 is connected to the discharge port 12.

[0029] It should be noted that the rotation of motor 21 drives the first rotating shaft 22 to rotate, the rotation of the first rotating shaft 22 drives the third gear 24 to rotate, the rotation of the third gear 24 drives the fourth gear 29 to rotate, the rotation of the fourth gear 29 drives the second connecting rod 210 to rotate, and the rotation of the second connecting rod 210 drives the sieving column 211 to rotate, thereby sieving the graphene powder inside the sieving column 211.

[0030] In an optional embodiment, a telescopic column 214 is provided on one side of the screening column 211, and one side of the telescopic column 214 is connected to the waste bin 215.

[0031] It should be noted that the unqualified graphene powder inside the screening column 211 rotates through the screening column 211 and enters the waste bin 215 for collection when it reaches one end through the telescopic column 214. At the same time, the telescopic column 214 extends and retracts to ensure that the waste bin 215 can move up and down.

[0032] In an optional embodiment, a support post 2161 is provided at the bottom of the telescopic sleeve 216, and a second spring 2162 is provided at the upper end of the support post 2161. The upper end of the second spring 2162 is connected to the telescopic sleeve 216.

[0033] It should be noted that the scrap bin 215 squeezes the telescopic sleeve 216, which in turn squeezes the second spring 2162, causing the telescopic sleeve 216 to descend. When the internal mass of the scrap bin 215 increases, the pressure on the telescopic sleeve 216 also increases, causing the second spring 2162 to descend even further.

[0034] In an optional embodiment, a movable sleeve 26 is provided on the first lead screw 25, and telescopic plates 217 are respectively provided on both sides of the movable sleeve 26. One side of the movable sleeve 26 is connected to the cleaning sleeve 27.

[0035] It should be noted that the rotation of the first rotating shaft 22 drives the first lead screw 25 to rotate, and the rotation of the first lead screw 25 drives the moving sleeve 26 to reciprocate. The reciprocating movement of the moving sleeve 26 squeezes and stretches the telescopic plates 217 on both sides to prevent the graphene powder in the screening column 211 from leaking out.

[0036] In an optional embodiment, a first spring 282 is provided inside the squeeze plug 28, and a squeeze post 281 is provided at one end of the squeeze plug 28. An inclined surface is provided on the squeeze post 281, and the two sides of the first spring 282 are respectively connected to the cleaning sleeve 27 and the squeeze post 281.

[0037] It should be noted that the reciprocating movement of the moving sleeve 26 drives the cleaning sleeve 27 to move, and the movement of the cleaning sleeve 27 drives the extrusion plug 28 to move. When the extrusion plug 28 moves, the holes on the sieve column 211 extrude the inclined surface of the extrusion column 281, and at the same time, the extrusion column 281 extrudes the extrusion plug 281, causing the extrusion column 281 to return to the inside of the extrusion plug 28. At the same time, when the extrusion plug 28 moves to the hole on the sieve column 211, the first spring 282 extrudes the first spring 282, causing the first spring 282 to move in the hole, clearing the graphene powder blocking the hole.

[0038] In an optional embodiment, a baffle 34 is provided on the third connecting rod 218, a first groove is provided on one side of the fixed rod 31, one end of the third connecting rod 218 is inside the first groove, the fifth gear 38 meshes with the first gear 14, and the size of the push block 37 is adapted to the push tube 36.

[0039] It should be noted that the rotation of the first gear 14 drives the rotation of the fifth gear 38, the rotation of the fifth gear 38 drives the rotation of the second rotating shaft 310, the rotation of the second rotating shaft 310 drives the rotation of the second lead screw 311, and the rotation of the second lead screw 311 drives the push block 37 to move, adding the dispersant inside the push tube 36 into the feed port 11. At the same time, the extrusion column 281 moves, driving the baffle 34 to move, avoiding the leakage of dispersant inside the feed tube 33 and causing waste. Meanwhile, the third connecting rod 218 slides inside the first groove.

[0040] In an optional embodiment, one end of the push tube 36 is connected to the feed port 11, and a limiting rod 39 is provided on the fixing rod 31. One side of the limiting rod 39 is rotatably connected to the fifth gear 38.

[0041] It should be noted that the movement of the push block 37 adds the dispersant in the push tube 36 into the feed port 11, while the limiting rod 39 fixes the fifth gear 38.

[0042] In an optional embodiment, a second groove is provided inside the feed tube 33.

[0043] It should be noted that the movement of the third link 218 causes the control column 35 at the other end to move. The movement of the control column 35 exposes the second groove inside the feed pipe 33, allowing the dispersant inside the storage tank 32 to enter the push pipe 36 through the second groove inside the feed pipe 33. At the same time, the farther the third link 218 moves, the larger the gap in the second groove becomes, and the more dispersant is added in a certain period of time.

[0044] Working principle: When using this device, graphite is added into the device through the feed port 11. The motor 21 drives the first rotating shaft 22 to rotate, which in turn drives the second gear 23 to rotate. The second gear 23 then drives the first gear 14 to rotate, which in turn drives the first connecting rod 15 to rotate. The first connecting rod 15 then drives the grinding cylinder 1 to rotate. The rotation of the grinding cylinder 1 grinds the graphite inside. After the grinding cylinder 1 rotates for a certain period of time, the graphene enters the screening column 211 through the discharge port 12. The rotation of the first rotating shaft 22 then drives the third gear 24 to rotate. The rotation of the third gear 24 drives the rotation of the fourth gear 29, which in turn drives the rotation of the screening column 211. The rotation of the screening column 211 guides qualified graphene powder into the guide column 212, and finally into the collection chamber 213 for collection. At the same time, graphene powder with larger particle size passes through the rotating screening column 211 and enters the telescopic column 214, and then enters the waste bin 215 for collection, facilitating subsequent reprocessing. This achieves the separation of qualified and unqualified graphene products, improving the quality of the produced graphene.

[0045] Simultaneously, the rotation of the first rotating shaft 22 drives the first lead screw 25 to rotate, and the rotation of the first lead screw 25 drives the moving sleeve 26 to reciprocate. The reciprocating movement of the moving sleeve 26 drives the cleaning sleeve 27 to move, and the movement of the cleaning sleeve 27 drives the extrusion plug 28 to move. When the extrusion plug 28 moves, the holes on the screening column 211 extrude pressure on the inclined surface of the extrusion column 281, and the extrusion column 281 extrudes pressure on the extrusion plug 281, causing the extrusion column 281 to return to the inside of the extrusion plug 28. At the same time, when the extrusion plug 28 moves to the hole on the screening column 211, the first spring 282 extrudes pressure on the first spring 282, causing the first spring 282 to move in the hole, clearing the graphene powder blocking the hole. This prevents the holes on the screening column 211 from being blocked by graphene powder during operation, which would affect the screening of graphene and thus affect the normal operation of the device.

[0046] Simultaneously, substandard graphene powder enters the waste bin 215, increasing its mass and thus compressing the telescopic sleeve 216. This compresses the second spring 2162, causing the waste bin 215 to descend. The movement of the waste bin 215 moves the third connecting rod 218, which in turn moves the control column 35 at the other end. The movement of the control column 35 causes the second groove inside the feed pipe 33 to leak out, thus exposing the storage bin 32. The dispersant inside the feed tube 33 enters the push tube 36 through the second groove inside the feed tube 33. Simultaneously, the rotation of the second gear 23 drives the rotation of the first gear 14, which in turn drives the rotation of the fifth gear 38. The rotation of the fifth gear 38 drives the rotation of the second rotating shaft 310, which in turn drives the rotation of the second lead screw 311. The rotation of the second lead screw 311 drives the push block 37 to reciprocate. The reciprocating movement of the push block 37 pushes the dispersant inside the push tube 36 into the feed inlet 11 and into the grinding cylinder 1. The weight inside the waste bin 215 compresses the second spring 2162, thereby driving the third connecting rod 218 to move. The distance of movement of the control column 35 is adjusted to control the degree of exposure of the second groove inside the feed tube 33. This controls the amount of dispersant added to the push tube 36 during the reciprocating motion of the push block 37, thereby enhancing the quality of the produced graphene powder and avoiding the impact of blindly adding dispersant on graphene preparation and the waste of dispersant resources.

[0047] It should also be noted that when the pusher block 37 is reciprocating, it will still block the feed pipe 33 when it reaches the front end, so as to prevent the dispersant inside the feed pipe 33 from being added to the rear end of the pusher block 37. At the same time, when the pusher block 37 is reciprocating, it will expose the connection between the feed pipe 33 and the pusher pipe 36 when it reaches a certain extent, so that the dispersant in the feed pipe 33 can be added to the pusher pipe 36, which is convenient for being added into the feed inlet 11.

[0048] The rotation of the first rotating shaft 22 drives the first lead screw 25 to rotate, and the rotation of the first lead screw 25 drives the moving sleeve 26 to reciprocate. The reciprocating movement of the moving sleeve 26 squeezes and stretches the telescopic plates 217 on both sides to prevent the graphene powder in the screening column 211 from leaking. At the same time, the movement of the extrusion column 281 drives the baffle 34 to move, preventing the dispersant inside the feed pipe 33 from leaking and causing waste. Meanwhile, the third connecting rod 218 slides inside the first groove. The farther the third connecting rod 218 moves, the larger the gap in the second groove becomes, and the more dispersant is added over a period of time.

[0049] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A mechanical exfoliation device for graphene production, comprising a grinding cylinder (1), characterized in that, An adjustment mechanism (3) is provided on one side of the grinding cylinder (1), a screening mechanism (2) is provided on one side of the grinding cylinder (1), and a support platform (13) is provided on the outside of the grinding cylinder (1). The screening mechanism (2) includes a first rotating shaft (22) that rotates on a support platform (13). A second gear (23) and a third gear (24) are respectively provided on both sides of the first rotating shaft (22). A fourth gear (29) meshes with one side of the third gear (24). A screening column (211) is provided on one side of the fourth gear (29). A guide column (212) is provided on the outside of the screening column (211). A collection bin (213) is fixedly provided at the bottom of the guide column (212). A waste bin (215) is provided at the bottom of one side of the screening column (211). A telescopic sleeve (216) is provided at the bottom of the waste bin (215). A third connecting rod (218) is provided on one side of the waste bin (215). A first lead screw (25) is provided at one end of the first rotating shaft (22). A cleaning sleeve (27) is provided on the first lead screw (25). Four sets of squeeze plugs (28) are provided on the cleaning sleeve (27). The adjustment mechanism (3) includes a storage tank (32), a fixing rod (31) is provided on the outside of the storage tank (32), the bottom of the fixing rod (31) is connected to the support platform (13), a discharge pipe (33) is provided at the bottom of the storage tank (32), a control column (35) is provided inside the discharge pipe (33), one side of the control column (35) is connected to the third connecting rod (218), a push pipe (36) is provided at the bottom of the discharge pipe (33), a fifth gear (38) is provided on one side of the push pipe (36), a second rotating shaft (310) is provided at one end of the fifth gear (38), a second lead screw (311) is provided on one side of the second rotating shaft (310), and a push block (37) is provided on the second lead screw (311).

2. The mechanical exfoliation device for graphene production according to claim 1, characterized in that, A motor (21) is fixed on one side of the first rotating shaft (22). The bottom of the motor (21) is fixedly connected to the support platform (13). The grinding cylinder (1) has a feed inlet (11) on one side and a discharge outlet (12) on the other side. The second gear (23) meshes with the first gear (14) on one side. The first gear (14) has multiple sets of first connecting rods (15) inside. The first connecting rod (15) is fixedly connected to the grinding cylinder (1) on one side.

3. The mechanical exfoliation device for graphene production according to claim 1, characterized in that, The inner side of the fourth gear (29) is provided with multiple sets of second connecting rods (210), one end of the second connecting rod (210) is connected to the screening column (211), and one side of the screening column (211) is connected to the discharge port (12).

4. The mechanical exfoliation device for graphene production according to claim 1, characterized in that, A telescopic column (214) is provided on one side of the screening column (211), and one side of the telescopic column (214) is connected to the waste bin (215).

5. The mechanical exfoliation device for graphene production according to claim 1, characterized in that, The telescopic sleeve (216) has a support column (2161) at its bottom and a second spring (2162) at its upper end. The upper end of the second spring (2162) is connected to the telescopic sleeve (216).

6. A mechanical exfoliation device for graphene production according to claim 5, characterized in that, A movable sleeve (26) is provided on the first lead screw (25), and telescopic plates (217) are provided on both sides of the movable sleeve (26). One side of the movable sleeve (26) is connected to the cleaning sleeve (27).

7. The mechanical exfoliation device for graphene production according to claim 1, characterized in that, The squeeze plug (28) is provided with a first spring (282) inside. One end of the squeeze plug (28) is provided with a squeeze column (281). The squeeze column (281) is provided with an inclined surface. The first spring (282) is connected to the cleaning sleeve (27) and the squeeze column (281) on both sides respectively.

8. A mechanical exfoliation device for graphene production according to claim 1, characterized in that, A baffle (34) is provided on the third link (218), a first groove is provided on one side of the fixed rod (31), one end of the third link (218) is inside the first groove, the fifth gear (38) meshes with the first gear (14), and the size of the push block (37) is adapted to the push tube (36).

9. A mechanical exfoliation device for graphene production according to claim 1, characterized in that, One end of the push tube (36) is connected to the feed port (11), and a limiting rod (39) is provided on the fixing rod (31). One side of the limiting rod (39) is rotatably connected to the fifth gear (38).

10. A mechanical exfoliation device for graphene production according to claim 1, characterized in that, The feed tube (33) has a second groove inside.

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