Mechanical stripping device for graphene production

Abstract

The invention relates to the technical field of graphene, in particular to a mechanical stripping 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 one side of the grinding cylinder, a supporting table is further arranged on the outer side of the grinding cylinder, and the screening mechanism comprises a first rotating shaft rotating on the supporting table. A second gear and a third gear are arranged on the two sides of a first rotating shaft correspondingly, a second spring is extruded through the weight in a waste box so as to drive a third connecting rod to move, the moving distance of a control column is adjusted, and therefore the different exposure degrees of a second groove in a discharging pipe are controlled; the amount of the dispersing agent added into the pushing pipe in the reciprocating motion process of the pushing block is controlled, so that the quality of the produced graphene powder is enhanced, and meanwhile, the influence on graphene preparation caused by blind adding of the dispersing agent is avoided, and the waste of dispersing agent resources is avoided.

Description

Technical Field

[0001] The present invention relates to the technical field of graphene, in particular to a mechanical stripping device for graphene production. Background Art

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

[0003] Existing mechanical exfoliation devices for graphene production require manual addition of dispersants during use to increase the yield of qualified graphene powder in the product. However, if too much dispersant is added manually, it will cause a waste of dispersant resources, and if too little dispersant is added, it will easily affect the product's qualification rate. Summary of the Invention

[0004] The purpose of the present invention is to provide a method for squeezing the second spring by the weight inside the waste box to drive the third connecting rod to move, adjust the distance of movement of the control column, and thus control the degree of exposure of the second groove inside the discharge pipe, thereby controlling the amount of dispersant added to the push pipe during the reciprocating motion of the push block, thereby enhancing the quality of the produced graphene powder, and avoiding the blind addition of dispersant to affect the preparation of graphene and waste dispersant resources.

[0005] To achieve the above-mentioned object, the present invention provides the following technical solution: a mechanical exfoliation device for graphene production, comprising a grinding cylinder, an adjustment mechanism provided on one side of the grinding cylinder, a screening mechanism provided on one side of the grinding cylinder, and a support platform provided on the outer side of the grinding cylinder; The screening mechanism includes a first rotating shaft rotating on a support table, a second gear and a third gear are respectively provided on both sides of the first rotating shaft, a fourth gear is meshed with one side of the third gear, a screening column is provided on one side of the fourth gear, a guide column is provided on the outer side of the screening column, a collecting bin is fixedly provided at the bottom of the guide column, a waste box is provided at the bottom of one side of the screening column, a telescopic sleeve is provided at the bottom of the waste box, a third connecting rod is provided on one side of the waste box, a first screw rod is provided at one end of the first rotating shaft, a cleaning sleeve is provided on the first screw rod, and four sets of extrusion plugs are provided on the cleaning sleeve; The adjusting mechanism includes a material storage barrel, a fixed rod is provided on the outside of the material storage barrel, the bottom of the fixed rod is connected to the support platform, a discharge pipe is provided at the bottom of the material storage barrel, a control column is provided inside the discharge pipe, one side of the control column is connected to the third connecting rod, a push pipe is provided at the bottom of the discharge pipe, a fifth gear is provided on one side of the push pipe, a second rotating shaft is provided at one end of the fifth gear, a second screw rod is provided on one side of the second rotating shaft, and a pushing block is provided on the second screw rod.

[0006] Preferably, a motor is fixed on one side of the first rotating shaft, the bottom of the motor is fixedly connected to the support platform, a feed port is rotated on one side of the grinding cylinder, and a discharge port is rotated on the other side of the grinding cylinder, one side of the second gear is engaged with the first gear, and multiple groups of first connecting rods are arranged inside the first gear, and one side of the first connecting rod is fixedly connected to the grinding cylinder.

[0007] Preferably, a plurality of second connecting rods are provided inside the fourth gear, 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 box.

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

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

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

[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 is engaged with the first gear, and the size of the pushing block is adapted to the pushing tube.

[0013] Preferably, one end of the push tube is connected to the feed port, a limiting rod is provided on the fixed rod, and one side of the limiting rod is rotationally connected to the fifth gear.

[0014] Preferably, a second groove is provided inside the discharge pipe.

[0015] Compared with the prior art, the present invention has the following beneficial effects: 1. The present invention compresses the second spring by the weight inside the waste box, thereby driving the movement of the third connecting rod, adjusting the movement distance of the control column, and thus controlling the degree of exposure of the second groove inside the discharge tube, thereby controlling the amount of dispersant added to the push tube during the reciprocating motion of the push block, thereby enhancing the quality of the produced graphene powder and avoiding the blind addition of dispersant that affects the preparation of graphene and wastes dispersant resources.

[0016] 2. The present invention rotates the screening column to allow graphene powder of qualified quality to enter the inside of the guide column, and finally enter the collection bin for collection. At the same time, the graphene powder with larger particle size enters the telescopic column through the rotation of the screening column, and enters the waste box through the telescopic column for collection for subsequent reprocessing, thereby achieving the separation of qualified graphene products and unqualified graphene products, and improving the quality of the produced graphene.

[0017] 3. In the present invention, when the extrusion plug moves, the holes on the screening column squeeze the inclined surface of the extrusion column, and at the same time, the extrusion column squeezes the extrusion column, so that the extrusion column returns to the inside of the extrusion plug. At the same time, when the extrusion plug moves to the hole on the screening column, the first spring squeezes the first spring so that the first spring moves in the hole, cleaning the graphene powder blocked in the hole, avoiding the holes on the screening column being blocked by graphene powder during operation, causing the graphene screening to be affected, thereby affecting the normal operation of the device. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0019] In the figure: 1, grinding cylinder; 11, feeding port; 12, discharging port; 13, supporting 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 screw rod; 26, movable 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 Toward column; 213, collecting bin; 214, telescopic column; 215, waste box; 216, telescopic sleeve; 2161, support column; 2162, second spring; 217, telescopic plate; 218, third connecting rod; 3, adjustment mechanism; 31, fixing rod; 32, storage barrel; 33, discharge pipe; 34, baffle; 35, control column; 36, push pipe; 37, push block; 38, fifth gear; 39, limiting rod; 310, second rotating shaft; 311, second screw rod. DETAILED DESCRIPTION

[0020] To make the purpose, technical solutions and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Therefore, the following detailed description of the embodiments of the present invention provided in the drawings is not intended to limit the scope of the invention claimed for protection, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0021] The present invention provides a mechanical stripping device for graphene production, comprising a grinding cylinder 1, 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 further provided on the outside of the grinding cylinder 1; The screening mechanism 2 includes a first rotating shaft 22 that rotates on the 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 is meshed 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 outer side of the screening column 211. A collecting bin 213 is fixedly provided at the bottom of the guide column 212. A waste box 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 box 215. A third connecting rod 218 is provided on one side of the waste box 215. A first screw rod 25 is provided at one end of the first rotating shaft 22. A cleaning sleeve 27 is provided on the first screw rod 25. Four sets of extrusion plugs 28 are provided on the cleaning sleeve 27. The adjusting mechanism 3 includes a storage barrel 32, a fixed rod 31 is provided on the outside of the storage barrel 32, the bottom of the fixed rod 31 is connected to the support platform 13, a discharge pipe 33 is provided at the bottom of the storage barrel 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 screw rod 311 is provided on one side of the second rotating shaft 310, and a pushing block 37 is provided on the second screw rod 311.

[0022] When using the device, graphite is added to the device through the feed port 11, and the first rotating shaft 22 is driven to rotate by the motor 21. The rotation of the first rotating shaft 22 drives the second gear 23 to rotate. The rotation of the second gear 23 drives the first gear 14 to rotate. The rotation of the first gear 14 drives the first connecting rod 15 to rotate. The rotation of the first connecting rod 15 drives the grinding cylinder 1 to rotate. The grinding cylinder 1 rotates to grind the graphite inside the grinding cylinder 1. 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 drives the third gear 24 to rotate. The rotation of the third gear 24 drives the rotation of the fourth gear 29, and the rotation of the fourth gear 29 drives the rotation of the screening column 211. The rotation of the screening column 211 allows the qualified graphene powder to enter the interior of the guide column 212 and finally enter the collecting bin 213 for collection. At the same time, the graphene powder with larger particle size enters the telescopic column 214 through the rotation of the screening column 211, and enters the waste box 215 through the telescopic column 214 for collection for subsequent processing, thereby achieving the separation of qualified graphene products from unqualified graphene products and improving the quality of the produced graphene.

[0023] At the same time, the rotation of the first rotating shaft 22 drives the first screw rod 25 to rotate, and the rotation of the first screw rod 25 drives the movable sleeve 26 to move back and forth. The reciprocating movement of the movable 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 squeeze the inclined surface of the extrusion column 281, and at the same time, the extrusion column 281 squeezes the extrusion column 281, so that the extrusion column 281 returns 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 squeezes the first spring 282 so that the first spring 282 moves in the hole, cleaning the graphene powder blocked in the hole, and avoiding the holes on the screening column 211 being blocked by graphene powder during operation, which affects the screening of graphene and thus affects the normal operation of the device.

[0024] At the same time, the unqualified graphene powder enters the waste box 215, which increases the mass of the waste box 215, thereby squeezing the telescopic sleeve 216, compressing the second spring 2162, and causing the waste box 215 to drop. The movement of the waste box 215 drives the third connecting rod 218 to move, and the movement of the third connecting rod 218 drives the control column 35 at the other end to move. The movement of the control column 35 causes the second groove inside the discharge pipe 33 to leak out, so that the storage barrel 32 The internal dispersant enters the pushing tube 36 through the second groove inside the discharge tube 33. At the same time, the rotation of the second gear 23 drives the first gear 14 to rotate, and the rotation of the first gear 14 drives the fifth gear 38 to rotate. The rotation of the fifth gear 38 drives the second rotating shaft 310 to rotate. The rotation of the second rotating shaft 310 drives the second screw rod 311 to rotate. The rotation of the second screw rod 311 drives the pushing block 37 to reciprocate. The pushing block 37 reciprocates to push the dispersant inside the pushing tube 36 into the feeding port 11 and adds it to the grinding cylinder 1 for action. The weight inside the waste box 215 squeezes the second spring 2162, thereby driving the third connecting rod 218 to move, and adjusting the distance moved by the control column 35, thereby controlling the degree of exposure of the second groove inside the discharge tube 33, thereby controlling the amount of dispersant added to the pushing tube 36 during the reciprocating motion of the pushing block 37, thereby enhancing the quality of the produced graphene powder, and avoiding the blind addition of dispersant to affect the preparation of graphene and waste of dispersant resources.

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

[0026] In an optional embodiment, a motor 21 is fixed on 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 port 11 is rotated on one side of the grinding cylinder 1, and a discharge port 12 is rotated on the other side of the grinding cylinder 1. One side of the second gear 23 is engaged with the first gear 14, and multiple groups of first connecting rods 15 are arranged inside the first gear 14. 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 added through the feed port 11 and the product is delivered through the discharge port 12. At the same time, the motor 21 rotates to drive the first shaft 22 to rotate, and the first shaft 22 rotates to drive the second gear 23 and the third gear 24 to rotate. The second gear 23 rotates to drive the first gear 14 to rotate, and the first gear 14 rotates to drive the first connecting rod 15 to rotate. The first connecting rod 15 rotates to drive the grinding cylinder 1 to rotate, thereby grinding the graphite added to the inside of the grinding cylinder 1.

[0028] In an optional embodiment, multiple groups 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 the 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 screening column 211 to rotate, so as to screen the graphene powder inside the screening 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 box 215 .

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

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

[0033] It should be noted that the waste box 215 squeezes the telescopic sleeve 216, and the telescopic sleeve 216 squeezes the second spring 2162, causing the telescopic sleeve 216 to descend. When the mass inside the waste box 215 increases, the pressure on the telescopic sleeve 216 also increases, driving the second spring 2162 to descend further.

[0034] In an optional embodiment, a movable sleeve 26 is provided on the first screw rod 25 , and telescopic plates 217 are respectively provided on both sides of the movable sleeve 26 , and 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 screw 25 to rotate, and the rotation of the first screw 25 drives the movable sleeve 26 to move back and forth. The reciprocating movement of the movable 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 extrusion plug 28, and an extrusion column 281 is provided at one end of the extrusion plug 28. The extrusion column 281 is provided with an inclined surface, and both sides of the first spring 282 are connected to the cleaning sleeve 27 and the extrusion column 281 respectively.

[0037] It should be noted that the reciprocating movement of the movable sleeve 26 drives the movement of the cleaning sleeve 27, 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 squeeze the inclined surface of the extrusion column 281, and at the same time, the extrusion column 281 squeezes the extrusion column 281, so that the extrusion column 281 returns 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 squeezes the first spring 282 so that the first spring 282 moves in the hole, thereby cleaning the graphene powder blocked in 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 fixing rod 31, one end of the third connecting rod 218 is inside the first groove, the fifth gear 38 is engaged with the first gear 14, and the size of the pushing block 37 is adapted to the pushing tube 36.

[0039] It should be noted that the rotation of the first gear 14 drives the fifth gear 38 to rotate, the rotation of the fifth gear 38 drives the second rotating shaft 310 to rotate, the rotation of the second rotating shaft 310 drives the second screw rod 311 to rotate, the rotation of the second screw rod 311 drives the pushing block 37 to move, and the dispersant inside the pushing tube 36 is added to the inside of the feed port 11. At the same time, the movement of the extrusion column 281 drives the baffle 34 to move, so as to avoid the leakage of the dispersant inside the discharge tube 33 and cause waste. At the same time, the third connecting rod 218 slides inside the first groove.

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

[0041] It should be noted that the pushing block 37 moves to add the dispersant in the pushing tube 36 into the feed port 11 , and at the same time the limiting rod 39 fixes the fifth gear 38 .

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

[0043] It should be noted that the movement of the third connecting rod 218 drives the control column 35 at the other end to move. The movement of the control column 35 exposes the second groove inside the discharge pipe 33, so that the dispersant inside the storage barrel 32 enters the push pipe 36 through the second groove inside the discharge pipe 33. At the same time, the farther the third connecting rod 218 moves, the larger the gap in the second groove, and the more dispersant is added over a period of time.

[0044] Working principle: When using this device, graphite is added to the device through the feed port 11, and the first rotating shaft 22 is driven to rotate by the motor 21. The rotation of the first rotating shaft 22 drives the second gear 23 to rotate. The rotation of the second gear 23 drives the first gear 14 to rotate. The rotation of the first gear 14 drives the first connecting rod 15 to rotate. The rotation of the first connecting rod 15 drives the grinding cylinder 1 to rotate. The rotation of the grinding cylinder 1 grinds the graphite inside the grinding cylinder 1. 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 drives the third gear 24 to rotate. The third gear 24 rotates, driving the fourth gear 29 to rotate. The fourth gear 29 rotates, driving the screening column 211 to rotate. The screening column 211 rotates to drive the qualified graphene powder into the guide column 212, and finally into the collecting bin 213 for collection. At the same time, the graphene powder with a larger particle size rotates through the screening column 211 and enters the telescopic column 214, and enters the waste box 215 through the telescopic column 214 for collection for subsequent reprocessing, thereby achieving the separation of qualified graphene products from unqualified graphene products and improving the quality of the produced graphene.

[0045] At the same time, the rotation of the first rotating shaft 22 drives the first screw rod 25 to rotate, and the rotation of the first screw rod 25 drives the movable sleeve 26 to move back and forth. The reciprocating movement of the movable 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 squeeze the inclined surface of the extrusion column 281, and at the same time, the extrusion column 281 squeezes the extrusion column 281, so that the extrusion column 281 returns 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 squeezes the first spring 282 so that the first spring 282 moves in the hole, cleaning the graphene powder blocked in the hole, and avoiding the holes on the screening column 211 being blocked by graphene powder during operation, which affects the screening of graphene and thus affects the normal operation of the device.

[0046] At the same time, the unqualified graphene powder enters the waste box 215, which increases the mass of the waste box 215, thereby squeezing the telescopic sleeve 216, compressing the second spring 2162, and causing the waste box 215 to drop. The movement of the waste box 215 drives the third connecting rod 218 to move, and the movement of the third connecting rod 218 drives the control column 35 at the other end to move. The movement of the control column 35 causes the second groove inside the discharge pipe 33 to leak out, so that the storage barrel 32 The internal dispersant enters the pushing tube 36 through the second groove inside the discharge tube 33. At the same time, the rotation of the second gear 23 drives the first gear 14 to rotate, and the rotation of the first gear 14 drives the fifth gear 38 to rotate. The rotation of the fifth gear 38 drives the second rotating shaft 310 to rotate. The rotation of the second rotating shaft 310 drives the second screw rod 311 to rotate. The rotation of the second screw rod 311 drives the pushing block 37 to reciprocate. The pushing block 37 reciprocates to push the dispersant inside the pushing tube 36 into the feeding port 11 and adds it to the grinding cylinder 1 for action. The weight inside the waste box 215 squeezes the second spring 2162, thereby driving the third connecting rod 218 to move, and adjusting the distance moved by the control column 35, thereby controlling the degree of exposure of the second groove inside the discharge tube 33, thereby controlling the amount of dispersant added to the pushing tube 36 during the reciprocating motion of the pushing block 37, thereby enhancing the quality of the produced graphene powder, and avoiding the blind addition of dispersant to affect the preparation of graphene and waste of dispersant resources.

[0047] It should also be noted that when the pushing block 37 is performing reciprocating motion, it still blocks the discharge pipe 33 when it moves to the front end to prevent the dispersant inside the discharge pipe 33 from entering the rear end of the pushing block 37. At the same time, when the pushing block 37 is performing reciprocating motion, it will move to a certain extent to expose the connection between the discharge pipe 33 and the pushing pipe 36, so that the dispersant in the discharge pipe 33 is added to the pushing pipe 36, which is convenient for adding to the inside of the feed port 11.

[0048] The rotation of the first rotating shaft 22 drives the first screw rod 25 to rotate, and the rotation of the first screw rod 25 drives the movable sleeve 26 to move back and forth. The reciprocating movement of the movable 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 to prevent the dispersant inside the discharge pipe 33 from leaking and causing waste. At the same time, the third connecting rod 218 slides inside the first groove. At the same time, the farther the third connecting rod 218 moves, the larger the gap in the second groove, and the more dispersant is added over a period of time.

[0049] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention 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 adjusting 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 supporting platform (13) is further provided on the outside of the grinding cylinder (1); The screening mechanism (2) includes a first rotating shaft (22) rotating 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) is meshed 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 collecting bin (213) is fixedly provided at the bottom of the guide column (212), a waste box (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 box (215), a third connecting rod (218) is provided on one side of the waste box (215), a first screw rod (25) is provided at one end of the first rotating shaft (22), a cleaning sleeve (27) is provided on the first screw rod (25), and four groups of extrusion plugs (28) are provided on the cleaning sleeve (27); The regulating mechanism (3) comprises a material storage barrel (32), a fixed rod (31) is provided on the outside of the material storage barrel (32), the bottom of the fixed rod (31) is connected to the support platform (13), a discharge pipe (33) is provided at the bottom of the material storage barrel (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 screw rod (311) is provided on one side of the second rotating shaft (310), and a push block (37) is provided on the second screw rod (311).

2. A 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), and the bottom of the motor (21) is fixedly connected to the support platform (13). A material inlet (11) is rotated on one side of the grinding cylinder (1), and a material outlet (12) is rotated on the other side of the grinding cylinder (1). One side of the second gear (23) is meshed with the first gear (14), and multiple groups 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).

3. A mechanical exfoliation device for graphene production according to claim 1, characterized in that: 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 a screening column (211), and one side of the screening column (211) is connected to a discharge port (12).

4. A 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 a waste box (215).

5. The mechanical exfoliation device for graphene production according to claim 1, characterized in that: A support column (2161) is provided at the bottom of the telescopic sleeve (216), a second spring (2162) is provided at the upper end of the support column (2161), and 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 screw rod (25), telescopic plates (217) are provided on both sides of the movable sleeve (26), and 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: A first spring (282) is provided inside the extrusion plug (28), an extrusion column (281) is provided at one end of the extrusion plug (28), an inclined surface is provided on the extrusion column (281), and both sides of the first spring (282) are connected to the cleaning sleeve (27) and the extrusion column (281) respectively.

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

9. The 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 fixed rod (31), and one side of the limiting rod (39) is rotatably connected to the fifth gear (38).

10. The mechanical exfoliation device for graphene production according to claim 1, characterized in that: A second groove is provided inside the discharge pipe (33).

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