A crushing and shaping device for negative electrode graphite

Abstract

The present invention relates to the field of graphite shaping technology, and in particular to a crushing and shaping device for negative electrode graphite, comprising a cylinder, a vertical cylinder is fixed at the inner center position of the cylinder, a plurality of concentrically arranged grinding rings are movably arranged on the outer side of the vertical cylinder, a support ring is fixed on the lower side of each grinding ring, and a driving mechanism for driving adjacent support rings to rotate in the opposite direction is arranged at the lower end of the vertical cylinder. The present invention drives multiple support rings and grinding rings to rotate through a driving mechanism, and drives the interval grinding rings to rotate through two first traction wheels and two second traction wheels, respectively, so as to realize the reverse rotation between adjacent grinding rings, and at the same time drives two sliding square rods to move back and forth through a telescopic mechanism, thereby driving multiple push plates to move back and forth, and multiple push plates push graphite particles back and forth between the upper sides of adjacent reversed grinding rings, so that the graphite particles at each position can be polished more evenly, thereby improving the shaping efficiency.

Description

Technical Field

[0001] The invention relates to the technical field of graphite shaping, in particular to a crushing and shaping device for negative electrode graphite. Background Art

[0002] Negative electrode graphite is a graphite material used for the negative electrode of the battery. In batteries (such as lithium-ion batteries), negative electrode graphite mainly plays the role of storing and releasing lithium ions. Negative electrode graphite has the advantages of good conductivity and high chemical stability, which enables it to effectively participate in the electrochemical process of the battery and maintain stable performance under a variety of battery working environments.

[0003] Graphite crushing is the process of breaking large pieces of graphite raw materials into smaller particles so that the graphite particle size meets the requirements of industry application scenarios. Shaping is the process of polishing and optimizing the crushed graphite particles, removing spikes and edges on the surface of the graphite particles, and improving the regularity of the graphite particles, so that the graphite particles can be better stacked and the battery performance can be more stable.

[0004] After searching, a Chinese patent with publication number: CN215611846U discloses a device for shaping artificial graphite particles, including a refining mechanism and a shaping mechanism. The refining mechanism includes a refining box and a refining component and a feed guide plate arranged in the refining box. A feed inlet is provided on the top of the refining box. The refining component includes a feed guide hopper and a crushing roller component arranged below the feed guide hopper. The feed guide plate is obliquely installed below the crushing roller component. The refining box has a feed guide inlet at the lowest end of the feed guide plate; the shaping mechanism includes a shaping box and a shaping component arranged in the shaping box. The shaping box is connected to the feed guide inlet through a feed guide pipe. The highest end of the feed guide pipe is connected to the feed guide inlet. The lowest end of the feed guide pipe is arranged in the shaping box. The shaping component includes a rotating drum and a driving motor arranged below the rotating drum. The output end of the driving motor is connected to the bottom of the rotating drum.

[0005] Based on the above search and combined with actual problems, it was found that the existing shaping device drives the graphite particles to move and make the graphite particles collide with the grinding blades, thereby removing the spikes and edges of the graphite particles. However, due to the limited contact area between the grinding blades and the graphite, the graphite particles cannot fully collide and rub with the grinding blades. Therefore, this grinding method is less efficient. In addition, since the graphite particles will collide with the grinding blades, when the collision force is large, it is easy to cause secondary breakage of the graphite particles, thereby causing the graphite particle size to further decrease, thereby reducing the shaping accuracy of the graphite particles. Summary of the invention

[0006] The object of the present invention is to provide a crushing and shaping device for negative electrode graphite to solve the problems raised in the above-mentioned background technology.

[0007] The technical solution of the present invention is: a crushing and shaping device for negative electrode graphite, comprising a cylinder, a vertical cylinder is fixed at the inner center position of the cylinder, a plurality of concentrically arranged grinding rings are movably arranged on the outer side of the vertical cylinder, a support ring is fixed on the lower side of each grinding ring, and a driving mechanism for driving adjacent support rings to rotate in the opposite direction is arranged at the lower end of the vertical cylinder; two guide square tubes are symmetrically fixed on both sides of the upper end of the vertical cylinder, sliding square rods are movably arranged through the inner sides of the two guide square tubes, pusher plates are fixed on the outer sides of the two sliding square rods corresponding to the upper sides of each grinding ring, and a driving mechanism is arranged between the two sliding square rods. There is a telescopic mechanism; two turning mechanisms are arranged on both sides of the vertical cylinder, and the two turning mechanisms and the two sliding square rods are arranged alternately, and a crushing mechanism is arranged on the upper end of the cylinder; the turning mechanism includes a shell fixed to the outside of the vertical cylinder, one end of the shell is rotatably inserted with three driving rollers, the ends of the three driving rollers are movably connected with end plates, and the outer sides of the three driving rollers are movably connected with turning belts, the other ends of the three driving rollers are fixed with driven gears, and a third motor is installed on one side of the outer side of the shell, and the driving end of the third motor is fixed with a driving gear meshing with the three driven gears.

[0008] Preferably, the driving mechanism includes a driving shaft that passes through and is rotatably connected to the lower end of the vertical cylinder and a first motor installed at the lower end of the inner side of the vertical cylinder, a driving bevel gear is fixed to the driving end of the first motor, a driven bevel gear that meshes with the driving bevel gear is fixed to the outer side of the driving shaft, and two first traction wheels are fixed to one end of the driving shaft, and the two first traction wheels are respectively fitted with the lower sides of two spaced support rings, and two second traction wheels are fixed to the other end of the driving shaft, and the two second traction wheels are fitted with the lower sides of the other two spaced support rings.

[0009] Preferably, the plurality of support rings and the innermost support ring and the outer side of the vertical cylinder are rotatably connected via bearings.

[0010] Preferably, the telescopic mechanism includes two rollers rotatably connected to the ends of the two sliding square rods, two slides fixed to one end of the two sliding square rods, and a second motor installed at the upper end of the inner side of the vertical cylinder, a rotating disk is fixed to the driving end of the second motor, two protrusions are symmetrically fixed to the outer side of the rotating disk, and one end of the two slides are elastically connected to the inner end of the two guide square tubes through a return spring.

[0011] Preferably, a plurality of turning plates are evenly arranged on the outer side of the turning belt, and the turning belt and the plurality of turning plates are both made of rubber.

[0012] Preferably, the shell, the end plate and the turning belt are all isosceles triangle structures, and the lower side of the turning belt is parallel to the surface of each grinding ring.

[0013] Preferably, the crushing mechanism includes a cover plate arranged at the upper end of the cylinder, a feed hopper is arranged at the center position on the upper side of the cover plate, a crushing motor is installed at the upper end of the feed hopper, a plurality of circumferentially arranged crushing knives are fixed to the driving end of the crushing motor, a particle filter plate is fixed to the inner lower end of the feed hopper, and a plurality of filter holes are evenly opened on the surface of the particle filter plate.

[0014] Preferably, a plurality of discharge ports are provided at the edge of the cover plate.

[0015] Preferably, a turning mechanism is arranged on the outer side of the cylinder, and the turning mechanism comprises a bracket, and a turning motor for driving the cylinder to rotate is installed at one end of the bracket.

[0016] The present invention provides a crushing and shaping device for negative electrode graphite by improving the present invention, which has the following improvements and advantages compared with the prior art:

[0017] First, the present invention drives multiple support rings and grinding rings to rotate through a driving mechanism, and drives the interval grinding rings to rotate through two first traction wheels and two second traction wheels, so as to realize the reverse rotation between adjacent grinding rings, and at the same time drives the two sliding square rods to move back and forth through the telescopic mechanism, thereby driving multiple push plates to move back and forth, and the multiple push plates push the graphite particles back and forth between the upper sides of adjacent reversed grinding rings, so that the graphite particles perform positive acceleration and deceleration motion and reverse acceleration and deceleration motion under the action of friction force, so that more graphite particles can contact and rub with the grinding rings, and so on and so forth, the graphite particles at various positions can be polished more evenly, thereby greatly improving the shaping efficiency, and compared with the shaping method through impact and collision, this shaping method is not easy to cause graphite particles to break, thereby maintaining the original overall shape of the graphite particles and ensuring the shaping accuracy.

[0018] Secondly, the present invention uses the turning mechanism to lift up the graphite particles in the bottom layer that are in contact with the grinding ring, and then makes them fall back to the top layer of graphite particles, thereby achieving the effect of cyclically turning over the upper and lower layers of graphite, so that the graphite particles in different height layers can fully contact the upper side of the grinding ring, thereby further improving the grinding and shaping efficiency and shaping effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the specific implementation methods of the present invention or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0020] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention;

[0021] Figure 2 It is a schematic diagram of the structure of the inner side of the cylinder in the present invention;

[0022] Figure 3 This is a schematic diagram of the structure of the crushing mechanism in the present invention from a first perspective;

[0023] Figure 4 It is a schematic structural diagram of the crushing mechanism of the present invention from a second viewing angle;

[0024] Figure 5 It is a schematic cross-sectional view of the structure of the neutral cylinder and the cylinder of the present invention;

[0025] Figure 6 For the present invention Figure 5 A schematic diagram of the enlarged structure at A in the middle;

[0026] Figure 7 It is a schematic diagram of the front cross-sectional structure of the present invention;

[0027] Figure 8 It is a structural schematic diagram of the material turning mechanism in the present invention;

[0028] Fig. 9 It is a schematic diagram indicating the rotation directions of multiple grinding rings in the present invention.

[0029] Reference numerals:

[0030] 1. Cylinder; 2. Vertical cylinder; 3. Grinding ring; 4. Support ring; 5. Bearing; 6. Bracket; 7. Flip motor; 101. First motor; 102. Driving shaft; 103. Driven bevel gear; 104. Active bevel gear; 105. First traction wheel; 106. Second traction wheel; 201. Guide square tube; 202. Sliding square rod; 203. Pushing plate; 204. Sliding plate; 205. Reset spring; 206. First Second motor; 207, rotating disk; 208, bump; 209, roller; 301, shell; 302, end plate; 303, driving roller; 304, turning belt; 305, third motor; 306, driving gear; 307, driven gear; 308, turning plate; 401, cover plate; 402, feed hopper; 403, crushing motor; 404, crushing knife; 405, particle filter plate; 406, discharge port. DETAILED DESCRIPTION

[0031] The present invention is described in detail below, and the technical solutions in the embodiments of the present invention are clearly and completely described. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0032] The present invention provides a pulverizing and shaping device for negative electrode graphite through improvement. The technical solution of the present invention is:

[0033] like Figures 1 to 9 As shown, the embodiment of the present invention provides a crushing and shaping device for negative electrode graphite, comprising a cylinder 1, a vertical cylinder 2 is fixed at the inner center of the cylinder 1, a plurality of concentrically arranged grinding rings 3 are movably arranged on the outer side of the vertical cylinder 2, and a support ring 4 (such as Figure 5 As shown in the figure, multiple support rings 4 and the innermost support ring 4 and the outer side of the vertical cylinder 2 are rotatably connected through bearings 5, and the lower end of the vertical cylinder 2 is provided with a driving mechanism for driving the adjacent support rings 4 to rotate in the opposite direction; two guide square tubes 201 are symmetrically fixed on both sides of the upper end of the vertical cylinder 2, and sliding square rods 202 are movably provided on the inner sides of the two guide square tubes 201, and push plates 203 are fixed on the outer sides of the two sliding square rods 202 corresponding to the top of each grinding ring 3, and a telescopic mechanism is provided between the two sliding square rods 202; two turning mechanisms are provided on both sides of the vertical cylinder 2, and the two turning mechanisms are connected to the two sliding square rods 202. The shifting rods 202 are arranged alternately, and a crushing mechanism is provided at the upper end of the cylinder 1; the turning mechanism comprises a shell 301 fixed on the outer side of the vertical cylinder 2, and three driving rollers 303 are rotatably inserted at one end of the shell 301, and the ends of the three driving rollers 303 are movably connected with an end plate 302, and the outer sides of the three driving rollers 303 are movably connected with a turning belt 304, and the other ends of the three driving rollers 303 are all fixed with a driven gear 307, and a third motor 305 is installed on one side of the outer side of the shell 301, and a driving gear 306 meshing with the three driven gears 307 is fixed at the driving end of the third motor 305;

[0034] The turning mechanism can lift the bottom layer of graphite particles in contact with the grinding ring 3 upwards. After the graphite particles turn over the upper end of the turning belt 304, they fall back to the top layer of graphite particles, thereby achieving the effect of cyclically turning the upper and lower layers of graphite, so that the graphite particles at different height layers can fully contact the upper side of the grinding ring 3, thereby further improving the grinding and shaping efficiency and shaping effect.

[0035] Further, the driving mechanism includes a driving shaft 102 that is rotatably connected to the lower end of the vertical cylinder 2 and a first motor 101 installed at the lower end of the inner side of the vertical cylinder 2, a driving bevel gear 104 is fixed to the driving end of the first motor 101, a driven bevel gear 103 that meshes with the driving bevel gear 104 is fixed to the outer side of the driving shaft 102, and two first traction wheels 105 are fixed to one end of the driving shaft 102, and the two first traction wheels 105 are respectively fitted with the lower sides of two spaced support rings 4, and two second traction wheels 106 are fixed to the other end of the driving shaft 102, and the two second traction wheels 106 are fitted with the lower sides of the other two spaced support rings 4;

[0036] The driving mechanism is used to drive each support ring 4 to rotate, thereby driving each grinding ring 3 to rotate, and making each adjacent grinding ring 3 rotate in the opposite direction (such as Fig. 9 As shown in the figure), the graphite particles are subjected to forward acceleration and deceleration motion and reverse acceleration and deceleration motion under the action of friction force, so that more graphite particles can contact and rub with the grinding ring 3, thereby improving the grinding and shaping efficiency.

[0037] Furthermore, the telescopic mechanism includes two rollers 209 rotatably connected to the ends of the two sliding square rods 202, two slide plates 204 fixed to one end of the two sliding square rods 202, and a second motor 206 installed at the upper end of the inner side of the vertical tube 2. A rotating disk 207 is fixed to the driving end of the second motor 206, and two protrusions 208 are symmetrically fixed to the outer side of the rotating disk 207. One end of the two slide plates 204 is elastically connected to the inner end of the two guide square tubes 201 through a return spring 205.

[0038] The telescopic mechanism is used to drive each sliding square rod 202 to move reciprocatingly and telescopically. Each sliding square rod 202 can drive multiple outer push plates 203 to move back and forth respectively. When the multiple push plates 203 move back and forth, the graphite particles can be pushed back and forth between the upper sides of adjacent grinding rings 3. When the graphite particles are pushed to the upper side of the forward rotating grinding ring 3, the grinding ring 3 drives the graphite particles to accelerate along its upper side through friction. When it is accelerated to a certain speed, it is pushed to the upper side of the adjacent reverse grinding ring 3. Under the action of the friction force of the adjacent reverse grinding ring 3, the fast-moving graphite particles are decelerated and then driven to accelerate in the opposite direction. This reciprocating process can be used to grind the graphite particles at various positions more evenly.

[0039] Furthermore, a plurality of turning plates 308 are evenly arranged on the outer side of the turning belt 304, and the turning belt 304 and the plurality of turning plates 308 are both made of rubber.

[0040] The turning plate 308 facilitates lifting the graphite particles of the lower layer upwards, so that the graphite particles of the lower layer roll to the upper layer, realizing the continuous circulation of the graphite particles of the upper and lower layers, so that the graphite particles of different heights can fully contact with the grinding ring 3, thereby improving the grinding efficiency and grinding uniformity.

[0041] Furthermore, the housing 301, the end plate 302 and the turning belt 304 are all isosceles triangle structures, and the lower side of the turning belt 304 is parallel to the surface of each grinding ring 3;

[0042] The lower side of the turning belt 304 can push the bottom layer of graphite particles in contact with the grinding ring 3 to one side, and then lift the bottom layer of graphite particles upward through multiple turning plates 308 on the side to achieve a turning effect.

[0043] Furthermore, the pulverizing mechanism includes a cover plate 401 disposed at the upper end of the cylinder 1, a feed hopper 402 is disposed at the center position on the upper side of the cover plate 401, a pulverizing motor 403 is mounted on the upper end of the feed hopper 402, a plurality of pulverizing knives 404 arranged in a circle are fixed to the driving end of the pulverizing motor 403, a particle filter plate 405 is fixed to the inner lower end of the feed hopper 402, and a plurality of filter holes are evenly opened on the surface of the particle filter plate 405;

[0044] The operation of the crushing motor 403 drives the multiple crushing knives 404 at the driving end to rotate. The rotation of the multiple crushing knives 404 can cut and crush the graphite raw material put into the inner side of the feed hopper 402, so that large-grained graphite raw material is formed into small-grained graphite raw material. When the size of the small-grained graphite is smaller than the filter hole size on the surface of the particle filter plate 405, the small-grained graphite can pass through the filter hole through the particle filter plate 405 and fall to the inner side of the cylinder 1.

[0045] Furthermore, a plurality of discharge ports 406 are provided at the edge of the cover plate 401, and a turning mechanism is provided on the outer side of the cylinder 1. The turning mechanism includes a bracket 6, and a turning motor 7 for driving the cylinder 1 to rotate is installed at one end of the bracket 6;

[0046] When the graphite particles are shaped to the desired state, the driving mechanism, the telescopic mechanism and the turning mechanism are controlled to stop running, and then the turning motor 7 of the turning mechanism is controlled to run. The turning motor 7 can drive the cylinder 1 to reverse a certain angle, so that the turning angle of the cylinder 1 is between 90° and 180°, so that the graphite particles on the inner side of the cylinder 1 above the multiple grinding rings 3 can fall on one side of the cover plate 401, and finally be unloaded outward through the multiple unloading ports 406 located at the edge of the cover plate 401, thereby realizing the function of automatic unloading.

[0047] Working principle: when in use, the graphite raw material to be crushed and shaped is put into the inner side of the feed hopper 402 of the crushing mechanism, and the crushing motor 403 is running to drive the multiple crushing knives 404 on the driving end to rotate. The rotation of the multiple crushing knives 404 can cut and crush the graphite raw material put into the inner side of the feed hopper 402, so that large-grained graphite raw material is formed into small-grained graphite raw material. When the size of the small-grained graphite is smaller than the filter hole size on the surface of the particle filter plate 405, the small-grained graphite can pass through the filter hole through the particle filter plate 405 and fall to the inner side of the cylinder 1. The graphite particles first fall on the upper side of a grinding ring 3 in the innermost layer. Since the upper end of the vertical cylinder 2 is in a pointed cone shape, the fallen graphite particles can be evenly dispersed to various positions on the upper side of the innermost grinding ring 3. As the graphite particles continue to fall into the inner side of the cylinder 1, the graphite particles will gradually flow to the upper sides of several grinding rings 3 in the outer layer until they are evenly spread on the upper side of each grinding ring 3.

[0048] At the same time, the first motor 101 of the driving mechanism is controlled to drive the active bevel gear 104 to rotate, and the active bevel gear 104 drives the driven bevel gear 103 to rotate through the teeth, and the driven bevel gear 103 drives the driving shaft 102 to rotate, and the driving shaft 102 drives the two first traction wheels 105 and the two second traction wheels 106 on the outside to rotate. Since the two first traction wheels 105 are in contact with the two spaced support rings 4, and the two second traction wheels 106 are in contact with the other two spaced support rings 4, and the two first traction wheels 105 and the two second traction wheels 106 rotate in the same direction, Under the friction of the two traction wheels 106, the spaced support rings 4 can be driven to rotate in the same direction, and the adjacent support rings 4 can be driven to rotate in the opposite direction. At the same time, the second motor 206 of the telescopic mechanism drives the rotating disk 207 to rotate, and the rotating disk 207 drives the two outer protrusions 208 to rotate. The two rollers 209 can roll along the outer sides of the rotating disk 207 and the two protrusions 208. When the two protrusions 208 contact the two rollers 209, radial thrust can be applied to the rollers 209, thereby respectively pushing the two sliding square rods 202 to extend outward at the same time, and the two sliding square rods 202 drive the two slide plates 204 to move in the guide The two sliding square rods 202 slide toward the inner side of the square tube 201, compressing the two return springs 205 at the same time, and the two sliding square rods 202 respectively drive the multiple outer push plates 203 to move radially toward the inner wall of the cylinder 1. When the two protrusions 208 are separated from the two rollers 209, the two return springs 205 push the two sliding square rods 202 to move in the opposite direction and retract to the inner side of the vertical tube 2 through the slide plate 204 under the elastic force of the two return springs 205, and so on. As the rotating disk 207 drives the two protrusions 208 to rotate continuously, the two sliding square rods 202 can be driven to continuously extend and retract, and the two sliding square rods 202 respectively drive the multiple outer push plates 203 to When the push plates 203 move back and forth, the graphite particles can be pushed back and forth between the upper sides of the adjacent grinding rings 3. When the graphite particles are pushed to the upper side of the forward-rotating grinding ring 3, the grinding ring 3 drives the graphite particles to accelerate along its upper side through friction. When the graphite particles are accelerated to a certain speed, they are pushed to the upper side of the adjacent reverse-rotating grinding ring 3. Under the friction of the adjacent reverse-rotating grinding ring 3, the fast-moving graphite particles are decelerated and then driven to accelerate in the reverse direction. In this way, the graphite particles at each position can be polished more evenly, thereby greatly improving the shaping effect and shaping efficiency.

[0049] The third motor 305 controls the operation of the two material turning mechanisms while grinding. The third motor 305 drives the driving gear 306 to rotate. The driving gear 306 drives the three driven gears 307 to rotate in the same direction at an equal speed through tooth meshing, thereby driving the three driving rollers 303 to rotate in the same direction and at a constant speed. The three driving rollers 303 can drive the outer material turning belt 304 to rotate in one direction. Since a plurality of material turning plates 308 are arranged on the outer side of the material turning belt 304, the plurality of material turning plates 308 located on the lower side can push the graphite particles located on the bottom layer to one side, and then lift the graphite particles on the bottom layer upward through the plurality of material turning plates 308 on the side. After the graphite particles turn over the upper end of the material turning belt 304, they fall back on the uppermost layer of the graphite particles, thereby achieving the effect of cyclically turning the upper and lower layers of graphite, so that the graphite particles at different height layers can fully contact with the upper side of the grinding ring 3, thereby further improving the grinding and shaping efficiency and shaping effect.

[0050] When the graphite particles are shaped to the desired state, the driving mechanism, the telescopic mechanism and the turning mechanism are controlled to stop running, and then the turning motor 7 is controlled to run. The turning motor 7 can drive the cylinder 1 to reverse a certain angle, so that the turning angle of the cylinder 1 is between 90° and 180°, so that the graphite particles on the inner side of the cylinder 1 above the multiple grinding rings 3 can fall on one side of the cover plate 401, and finally be unloaded outward through the multiple unloading ports 406 located at the edge of the cover plate 401, thereby realizing the function of automatic unloading.

[0051] The above description enables those skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A device for crushing and shaping negative electrode graphite, comprising a cylinder (1), a vertical cylinder (2) being fixed at the inner center of the cylinder (1), characterized in that: A plurality of concentrically arranged grinding rings (3) are movably arranged on the outer side of the vertical cylinder (2), a support ring (4) is fixed on the lower side of each grinding ring (3), and a driving mechanism for driving adjacent support rings (4) to rotate in the opposite direction is provided at the lower end of the vertical cylinder (2); Two guide square tubes (201) are symmetrically fixed on both sides of the upper end of the vertical cylinder (2), and sliding square rods (202) are movably provided through the inner sides of the two guide square tubes (201), and push plates (203) are fixed on the outer sides of the two sliding square rods (202) corresponding to the upper sides of each grinding ring (3), and a telescopic mechanism is provided between the two sliding square rods (202); Two material turning mechanisms are arranged on both sides of the vertical cylinder (2), the two material turning mechanisms and the two sliding square rods (202) are arranged alternately, and a crushing mechanism is arranged at the upper end of the cylinder (1); The material turning mechanism comprises a shell (301) fixed on the outside of the vertical cylinder (2); three driving rollers (303) are rotatably inserted into one end of the shell (301); the ends of the three driving rollers (303) are movably connected to an end plate (302); the outsides of the three driving rollers (303) are movably connected to a material turning belt (304); the other ends of the three driving rollers (303) are all fixed with a driven gear (307); a third motor (305) is installed on one side of the outside of the shell (301); and a driving gear (306) meshing with the three driven gears (307) is fixed to the driving end of the third motor (305).

2. The device for crushing and shaping negative electrode graphite according to claim 1, characterized in that: The driving mechanism comprises a driving shaft (102) which passes through and is rotatably connected to the lower end of the vertical cylinder (2) and a first motor (101) which is mounted on the lower end of the inner side of the vertical cylinder (2); a driving bevel gear (104) is fixed to the driving end of the first motor (101); a driven bevel gear (103) which meshes with the driving bevel gear (104) is fixed to the outer side of the driving shaft (102); two first traction wheels (105) are fixed to one end of the driving shaft (102); the two first traction wheels (105) are respectively fitted to the lower sides of two spaced support rings (4); and two second traction wheels (106) are fixed to the other end of the driving shaft (102); the two second traction wheels (106) are fitted to the lower sides of the other two spaced support rings (4).

3. The device for crushing and shaping negative electrode graphite according to claim 1, characterized in that: The plurality of support rings (4) as well as the innermost support ring (4) and the outer side of the vertical cylinder (2) are rotatably connected via bearings (5).

4. The device for crushing and shaping negative electrode graphite according to claim 1, characterized in that: The telescopic mechanism comprises two rollers (209) rotatably connected to the ends of the two sliding square rods (202), two slide plates (204) fixed to one end of the two sliding square rods (202), and a second motor (206) mounted on the upper end of the inner side of the vertical tube (2), a rotating disk (207) being fixed to the driving end of the second motor (206), two protrusions (208) being symmetrically fixed to the outer side of the rotating disk (207), and one end of the two slide plates (204) being elastically connected to the inner ends of the two guide square tubes (201) respectively through return springs (205).

5. The device for crushing and shaping negative electrode graphite according to claim 1, characterized in that: A plurality of material turning plates (308) are evenly arranged on the outer side of the material turning belt (304), and the material turning belt (304) and the plurality of material turning plates (308) are both made of rubber.

6. The device for crushing and shaping negative electrode graphite according to claim 1, characterized in that: The housing (301), the end plate (302) and the turning belt (304) are all isosceles triangle structures, and the lower side of the turning belt (304) is parallel to the surface of each grinding ring (3).

7. The device for crushing and shaping negative electrode graphite according to claim 1, characterized in that: The pulverizing mechanism comprises a cover plate (401) arranged at the upper end of the cylinder (1); a feed hopper (402) is arranged at the center position on the upper side of the cover plate (401); a pulverizing motor (403) is installed on the upper end of the feed hopper (402); a plurality of pulverizing knives (404) arranged in a circle are fixed to the driving end of the pulverizing motor (403); a particle filter plate (405) is fixed to the inner lower end of the feed hopper (402); a plurality of filter holes are evenly provided on the surface of the particle filter plate (405).

8. The device for crushing and shaping negative electrode graphite according to claim 7, characterized in that: A plurality of discharge openings (406) are provided at the edge of the cover plate (401).

9. The device for crushing and shaping negative electrode graphite according to claim 1, characterized in that: A turning mechanism is arranged on the outside of the cylinder (1), and the turning mechanism comprises a bracket (6). A turning motor (7) for driving the cylinder (1) to rotate is mounted on one end of the bracket (6).

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