Extrusion forming device for graphite production

Abstract

The invention relates to the technical field of graphite production, in particular to an extrusion forming device for graphite production, which comprises a worktable and a support frame mounted above the worktable, a vertical rod is mounted in the middle of the upper surface of the worktable, and forming cavities are mounted on the outer side of the vertical rod at equal intervals through a regulation and control assembly; an electric push rod is fixed to the middle of the supporting frame in a penetrating mode, a supporting plate is installed at the output end of the electric push rod, and a pressing head and a pushing column are installed below the right side and the rear side of the supporting plate correspondingly. According to the extrusion forming device for graphite production, the vertical rods drive the four sets of forming cavities installed on the outer side at equal intervals to rotate, meanwhile, the supporting plates drive the pressing heads and the material pushing columns to move downwards together, and therefore the pressing heads conduct extrusion forming on paste in the corresponding forming cavities under the pressing heads; and the formed graphite electrode biscuit in the corresponding forming cavity under the pushing column is pushed out and demolded by the pushing column, so that the continuous batch extrusion forming efficiency of the graphite electrode can be improved.

Description

Technical Field

[0001] This invention relates to the field of graphite production technology, specifically to an extrusion molding apparatus for graphite production. Background Technology

[0002] Graphite materials can be processed into graphite electrodes with good electrical conductivity through specific processes. Graphite electrodes are mainly used as conductive materials in electric furnace equipment such as electrometallurgy. During the processing of graphite electrodes, extrusion molding devices are used to press the paste into graphite electrode blanks of a certain shape and size. For example, the patent application published in the prior art with the publication number "CN120245494B" is entitled "An extrusion molding device for manufacturing graphite electrodes". It discloses that in actual use, the raw material is introduced into the molding hole, and the amount of raw material in each molding hole can be different. Then, the pressure plate drives the pressure head to move downward. When the pressure head enters the molding hole, it stops moving. The chain drives the sprocket to move, and the sprocket can drive the ring plate to rotate. Then, the extrusion assembly drives the collar to rotate. Through the cooperation of the slider and the slide groove, the collar can drive the lifting rod to rotate. Due to the threaded cooperation between the lifting rod and the platform, the lifting rod can drive the push block to move upward during the rotation, thereby extruding the raw material in the molding hole between the pressure head and the push block. During this process, the driven gear at the bottom of the collar can mesh with the gear ring. Through the gear ring, the driven gear can drive the rotation of the driven gear, which in turn drives the rotating shaft and the drum to rotate. As the drum gradually winds up the rope, the slider will gradually slide away from the lifting rod.

[0003] In the aforementioned extrusion molding apparatus, the raw material is first introduced into the molding hole, and then the extrusion molding operation is performed by moving the pressure head downwards. Later, the graphite electrode blank is pushed out of the mold by moving the push block upwards. This means that the raw material can only be introduced into the molding hole again for the next extrusion molding operation after the graphite electrode blank has been pushed out of the mold. As a result, the efficiency of continuous batch extrusion molding of graphite electrodes is slow. Therefore, we propose an extrusion molding apparatus for graphite production to solve the problems mentioned above. Summary of the Invention

[0004] The purpose of this invention is to provide an extrusion molding apparatus for graphite production, which solves the problem mentioned in the background art that existing extrusion molding apparatuses first introduce raw materials into the molding hole, then perform extrusion molding by moving the pressure head downwards, and finally push the molded graphite electrode blank out of the mold by moving the push block upwards. This means that raw materials can only be introduced into the molding hole again for the next extrusion molding operation after the graphite electrode blank has been pushed out of the mold, resulting in slow efficiency in continuous batch extrusion molding of graphite electrodes.

[0005] To achieve the above objectives, the present invention provides the following technical solution: an extrusion molding apparatus for graphite production, comprising a worktable and a support frame mounted thereon. A vertical rod is installed at the middle position of the upper surface of the worktable, and molding cavities are installed at equal intervals on the outer side of the vertical rod through an adjustment component. An electric push rod is fixed through the middle position of the support frame, and a support plate is installed at the output end of the electric push rod. A pressure head and a push column are respectively installed on the lower right and rear sides of the support plate. A wobbling component is installed in the worktable corresponding to the molding cavity on the right side of the vertical rod. A discharge hole is opened in the worktable corresponding to the molding cavity on the rear side, and a temporary storage plate is installed inside the lower part of the worktable corresponding to the discharge hole.

[0006] Preferably, the control component includes a guide rod fixed in a groove on the outer side of the vertical rod, and a second mounting block is provided through the outer side of the guide rod. A first reset spring is nested and connected to the outer side of the vertical rod above the second mounting block. The first mounting block is slidably connected to the side of the second mounting block away from the guide rod by a groove. One end of the first mounting block is connected to the interior of the second mounting block through the second reset spring, and the other end of the first mounting block is connected to the molding cavity.

[0007] Preferably, the lowest point of the pressure head is higher than the lowest point of the pusher column, and the height of the pressure head is less than the height of the pusher column, while the height of the pusher column is greater than the height of the forming cavity.

[0008] Preferably, the bottom surface of the molding cavity is in close contact with the upper surface of the worktable, and a first magnet block is embedded at each of the four corners of the bottom surface of the molding cavity, with the lower surface of the first magnet block flush with the lower surface of the molding cavity.

[0009] Preferably, the shaking component includes a movable plate slidably connected to a slot in the worktable below the molding cavity on the right side. The upper surface of the movable plate is flush with the upper surface of the worktable, and a second magnet is embedded at each of the four corners of the upper surface of the movable plate. The upper surface of the second magnet is flush with the upper surface of the movable plate, and the first magnet and the second magnet are opposite magnetic poles.

[0010] Preferably, a push column is slidably connected through the worktable on the right side of the movable plate, and a connecting plate is fixed to the rear side of the push column. A single-turn reciprocating screw is threaded through the rear end of the connecting plate, and the left end of the single-turn reciprocating screw is rotatably installed with the right side of the worktable. A ratchet is keyed to the outer side of the left end of the single-turn reciprocating screw. A rotating frame is provided on the outer side of the left end of the single-turn reciprocating screw, and the left side of the rotating frame is rotatably installed with the right side of the worktable. A pawl connected to the ratchet is installed on the inner side of the rotating frame, and a gear ring is installed on the outer side of the rotating frame.

[0011] Preferably, a rack assembly is installed on the right side of the support plate, and the lower front side of the rack assembly is engaged with the gear ring.

[0012] Preferably, a first gas storage pipe is installed inside the workbench on the left side of the movable plate, and the right side of the first gas storage pipe is connected to the first piston assembly via a connecting spring, and a movable plate is provided on the right side of the first piston assembly.

[0013] Preferably, a second air storage pipe is installed in the workbench below the movable plate, and a second piston assembly is attached to the upper part of the second air storage pipe. A push plate is connected to the upper end of the second piston assembly, and a roller is embedded in the upper surface of the push plate. The movable plate is attached to the upper surface of the roller. The lower part of the first air storage pipe is connected to the interior of the second air storage pipe through a connecting pipe.

[0014] Preferably, a scraper is installed on the outer side of the molding cavity, the lowest point of the scraper is on the same horizontal plane as the lowest point of the molding cavity, and the bottom surface of the scraper is in close contact with the upper surface of the moving plate. A slag discharge trough is installed through the worktable corresponding to the rear of the molding cavity on the right side.

[0015] Compared with the prior art, the beneficial effects of the present invention are: In this extrusion molding apparatus for graphite production, while the pressure head extrudes the paste in the corresponding molding cavity below, the pusher pushes the molded graphite electrode blank out of the corresponding molding cavity below for demolding. Therefore, it can improve the efficiency of continuous batch extrusion molding of graphite electrodes. The specific details are as follows: (1) The four sets of molding cavities installed at equal intervals on the outside are rotated by the vertical rod. At the same time, the pressure head and the pusher column are moved downward together by the support plate. This allows the pressure head to extrude the paste in the molding cavity directly below while the pusher column pushes out the molded graphite electrode blank in the molding cavity directly below to demold. Therefore, the efficiency of continuous batch extrusion molding of graphite electrodes can be improved. (2) When the support plate drives the rack assembly to move downward, the rack assembly drives the gear ring and rotating frame to rotate. The pawl and ratchet drive the single-rotor reciprocating screw to rotate, which in turn drives the connecting plate and the push column to move back and forth. This causes the push column to push the moving plate and the upper forming cavity to move slightly back and forth. At the same time, the first air storage pipe and the second air storage pipe work together to drive the push plate to move up and down. This causes the push plate to push the moving plate and the upper forming cavity to move slightly up and down. Therefore, the paste in the forming cavity can be shaken, which can not only improve the uniformity of the paste in the forming cavity, but also facilitate the merging and floating of small bubbles through slight shaking. This allows the pressure head to apply pressure to the paste in the forming cavity in the later stage, ensuring the density and strength of the graphite electrode blank and improving the quality of the later extrusion molding. (3) By setting the pawl and ratchet, when the rack assembly moves upward to reset, the moving plate and the upper forming cavity will not shake, thereby avoiding damage to the formed graphite electrode blank in the forming cavity.

[0016] (4) When the forming cavity drives the scraper to rotate around the center of the vertical rod, the scraper can scrape off the impurities remaining on the upper surface of the moving plate and drop them into the slag discharge trough for automatic cleaning of the moving plate surface. Attached Figure Description

[0017] Figure 1 This is a three-dimensional structural diagram of Embodiment 1 of the present invention; Figure 2 This is a schematic diagram of the overall left-side three-dimensional structure of the present invention; Figure 3 This is a schematic diagram of the overall three-dimensional structure on the right side of the present invention; Figure 4 For the present invention Figure 3 Enlarged structural diagram at point A in the middle; Figure 5 This is a schematic cross-sectional view of the workbench in Embodiment 2 of the present invention; Figure 6 This is a schematic cross-sectional view of the vertical rod structure of the present invention; Figure 7 For the present invention Figure 6 Enlarged structural diagram at point B; Figure 8 This is a schematic diagram of the front structure of the worktable, moving plate, and molding cavity of the present invention. Figure 9 This is a schematic diagram of the lower structure of the worktable, moving plate, and molding cavity of the present invention. Figure 10 This is a schematic cross-sectional view of the first gas storage pipe of the present invention; Figure 11 This is a three-dimensional structural diagram of the right side of the workbench in Embodiment 3 of the present invention.

[0018] In the diagram: 1. Workbench; 2. Support frame; 3. Electric push rod; 4. Forming cavity; 41. First magnet block; 5. Temporary storage plate; 6. Support plate; 61. Rack assembly; 7. Pressure head; 8. Push column; 9. Vertical rod; 91. Guide rod; 92. First return spring; 10. First mounting block; 11. Second mounting block; 111. Second return spring; 12. Push column; 121. Connecting plate; 13. Rotating frame; 131. Pawl; 132. Gear ring; 14. Single-turn reciprocating screw; 141. Ratchet; 15. Moving plate; 151. Second magnet block; 16. First air storage pipe; 161. Connecting spring; 162. First piston assembly; 17. Connecting pipe; 18. Second air storage pipe; 181. Second piston assembly; 19. Push plate; 191. Roller; 20. Discharge hole; 21. Scraper; 22. Slag discharge trough. Detailed Implementation

[0019] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0020] Please see Figures 1-11 The present invention provides the following technical solution: Example 1: In this example, the extrusion molding device for graphite production uses a press head 7 to extrude the paste in the corresponding molding cavity 4 below, while the pusher column 8 pushes the molded graphite electrode blank out of the corresponding molding cavity 4 below for demolding. This improves the efficiency of continuous batch extrusion molding of graphite electrodes. For the specific structure, please refer to the attached diagram. Figures 1-2As shown, the system includes a worktable 1 and a support frame 2 mounted on top of it. A vertical rod 9 is installed in the middle of the upper surface of the worktable 1, and forming cavities 4 are installed at equal intervals on the outer side of the vertical rod 9 through a control component. An electric push rod 3 is fixed through the middle of the support frame 2, and a support plate 6 is installed at the output end of the electric push rod 3. A pressure head 7 and a push column 8 are respectively installed on the lower right and rear sides of the support plate 6. A wobbling component is installed in the worktable 1 corresponding to the forming cavity 4 on the right side of the vertical rod 9. A discharge hole 20 is opened in the worktable 1 corresponding to the forming cavity 4 on the rear side, and a temporary storage plate 5 is installed inside the lower part of the worktable 1 corresponding to the discharge hole 20. The control component includes a slot fixed on the outer side of the vertical rod 9. A guide rod 91 is provided in the groove, and a second mounting block 11 is provided through the outer side of the guide rod 91. A first return spring 92 is nested and connected to the outer side of the vertical rod 9 above the second mounting block 11. A first mounting block 10 is slidably connected to the side of the second mounting block 11 away from the guide rod 91 with a slot. One end of the first mounting block 10 is connected to the interior of the second mounting block 11 through the second return spring 111. The other end of the first mounting block 10 is connected to the molding cavity 4. The lowest point of the pressure head 7 is higher than the lowest point of the push column 8, and the height of the pressure head 7 is less than the height of the push column 8. The height of the push column 8 is greater than the height of the molding cavity 4. The bottom surface of the molding cavity 4 is in contact with the upper surface of the worktable 1.

[0021] A certain amount of the mixed paste is injected into the molding cavity 4 on the right side of the vertical rod 9. Then, the electric push rod 3 is activated. The output end of the electric push rod 3 drives the support plate 6 to move downward. The support plate 6 drives the pressure head 7 and the push column 8 to move downward together. The pressure head 7 extrudes the paste in the corresponding molding cavity 4 below to form a graphite electrode blank. Next, the motor installed at the bottom of the vertical rod 9 is activated. The motor drives the vertical rod 9 to rotate 90° counterclockwise. The vertical rod 9 drives the molding cavity 4 to rotate, so that the molding cavity 4 on the right side of the vertical rod 9 rotates to the rear side of the vertical rod 9, and the molding cavity 4 on the front side of the vertical rod 9 rotates to the right side of the vertical rod 9. Then, a certain amount of the mixed paste is injected into the molding cavity 4 on the right side of the vertical rod 9 again. Then, the electric push rod 3 is activated. The output end of the electric push rod 3 drives the support plate 6 to move downward. The support plate 6 drives the pressure head 7 and the push column 8 to move downward together. The pressure head 7 extrudes the paste in the corresponding molding cavity 4 below to form a graphite electrode blank. The paste in cavity 4 is extruded and molded into a graphite electrode blank. The pusher column 8 pushes the molded graphite electrode blank in the corresponding molding cavity 4 below, causing the molded graphite electrode blank to separate from the molding cavity 4 and then be discharged into the temporary storage plate 5 through the discharge hole 20. A rubber pad can be installed on the upper surface of the temporary storage plate 5 to support and protect the molded graphite electrode blank from impact damage. Later, the staff removes the graphite electrode blank from the temporary storage plate 5. Then, as described above, the motor drives the vertical rod 9 to rotate 90° counterclockwise again and continues the above steps. This allows the press head 7 to extrude and mold the paste in the corresponding molding cavity 4 below, while the pusher column 8 pushes the molded graphite electrode blank in the corresponding molding cavity 4 below out of the mold for demolding. Therefore, the efficiency of continuous batch extrusion molding of graphite electrodes can be improved.

[0022] Example 2: The extrusion molding device for graphite production in this example, based on Example 1, can agitate the paste in the molding cavity 4. This not only improves the uniformity of the paste in the molding cavity 4, but also facilitates the merging and rising of micro-bubbles through slight agitation. This allows the pressure head 7 to effectively apply pressure to the paste in the molding cavity 4 later, ensuring the density and strength of the graphite electrode preform and improving the quality of subsequent extrusion molding. For the specific structure, please refer to the attached diagram. Figures 3-10As shown, a first magnet block 41 is embedded at each of the four corners of the bottom surface of the molding cavity 4. The lower surface of the first magnet block 41 is flush with the lower surface of the molding cavity 4. The shaking assembly includes a movable plate 15 slidably connected to a slot opened in the worktable 1 below the molding cavity 4 on the right side. The upper surface of the movable plate 15 is flush with the upper surface of the worktable 1, and a second magnet block 151 is embedded at each of the four corners of the upper surface of the movable plate 15. The upper surface of the second magnet block 151 is flush with the upper surface of the movable plate 15. Magnet block 41 and second magnet block 151 are opposite magnetic poles. A push column 12 is slidably connected through the worktable 1 on the right side of the movable plate 15, and a connecting plate 121 is fixed to the rear side of the push column 12. A single-turn reciprocating screw 14 is threadedly connected through the rear end of the connecting plate 121, and the left end of the single-turn reciprocating screw 14 is rotatably mounted to the right side of the worktable 1. A ratchet 141 is keyed to the outer side of the left end of the single-turn reciprocating screw 14, and a rotating frame 13 is provided on the outer side of the left end of the single-turn reciprocating screw 14. The left side of the moving frame 13 is rotatably mounted to the right side of the worktable 1. A pawl 131 connected to a ratchet 141 is mounted on the inner side of the moving frame 13. A gear ring 132 is mounted on the outer side of the moving frame 13. A rack assembly 61 is mounted on the right side of the support plate 6, and the lower front side of the rack assembly 61 meshes with the gear ring 132. A first air storage pipe 16 is installed inside the worktable 1 on the left side of the moving plate 15, and the right side of the first air storage pipe 16 is connected to the first piston assembly 162 via a connecting spring 161. Furthermore, a movable plate 15 is provided on the right side of the first piston assembly 162. A second gas storage pipe 18 is installed in the worktable 1 below the movable plate 15. The second piston assembly 181 is attached to the upper part of the second gas storage pipe 18. A push plate 19 is connected to the upper end of the second piston assembly 181. A roller 191 is embedded in the upper surface of the push plate 19. The movable plate 15 is attached to the upper surface of the roller 191. The lower part of the first gas storage pipe 16 is connected to the interior of the second gas storage pipe 18 through a connecting pipe 17.

[0023] The first magnet 41 and the second magnet 151 on the bottom surface of the forming cavity 4 on the right side of the vertical rod 9 are attracted by opposite magnetic poles, which makes the bottom surface of the forming cavity 4 tightly connected to the upper surface of the moving plate 15. When the support plate 6 drives the rack assembly 61 to move downward, the rack assembly 61 engages with the gear ring 132, thereby driving the gear ring 132, the rotating frame 13 and the pawl 131 to rotate. The pawl 131 drives the ratchet 141 and the single-turn reciprocating screw 14 to rotate. When the single-turn reciprocating screw 14 rotates, it drives the connecting plate 121 connected by the outer thread to move back and forth. Therefore, the connecting plate 121 drives the push column 12 to move back and forth. When the push column 12 moves to the left, it pushes the push column 12 to move back and forth. The movable plate 15 and the upper adsorbed forming cavity 4 move to the left together. At this time, the first mounting block 10 slides within the second mounting block 11, compressing and storing force on the second return spring 111. The sliders on the front and rear sides of the movable plate 15 slide to the left within the grooves opened in the worktable 1. The bottom surface of the movable plate 15 contacts and slides with the roller 191. The setting of the roller 191 reduces the friction of the bottom surface when the movable plate 15 slides. The movable plate 15 compresses the first piston assembly 162, and the first piston assembly 162 pushes the gas in the first gas storage pipe 16. The connecting spring 161 stores force, so that the gas in the first gas storage pipe 16 enters the second gas storage pipe 18 through the connecting pipe 17, and then the second gas storage pipe 18... The gas inside pushes the second piston assembly 181 and the push plate 19 upward. The rollers 191 on the upper surface of the push plate 19 push the moving plate 15 and the forming cavity 4 upward. At this time, the second mounting block 11 moves upward outside the guide rod 91, and the first return spring 92 stores force, causing the sliders on the front and rear sides of the moving plate 15 to slide upward in the grooves opened in the worktable 1. When the push column 12 moves to the right, as described above, the stored force of the connecting spring 161 pushes the moving plate 15 to move to the right and then move downward to reset. This operation is repeated, causing the moving plate 15 to drive the forming cavity 4 above to make slight left-right reciprocating swaying and slight up-down reciprocating swaying. The height and length of the groove inside are greater than the height and length of the slider. Both the slider and the groove are rectangular. Therefore, when the moving plate 15 moves slightly left and right and slightly up and down, the sliders on the front and rear sides of the moving plate 15 slide left and right and up and down in the groove inside the worktable 1, thus ensuring the stability of the moving plate 15. This allows the paste in the forming cavity 4 to be shaken, which not only improves the uniformity of the paste in the forming cavity 4, but also facilitates the merging and floating of micro bubbles through slight shaking. This allows the pressure head 7 to apply pressure to the paste in the forming cavity 4 in the later stage, ensuring the density and strength of the graphite electrode blank and improving the quality of the later extrusion molding.

[0024] When the lower end of the pressure head 7 is about to enter the corresponding forming cavity 4 directly below, the rack assembly 61 and the gear ring 132 separate and do not mesh, so that the forming cavity 4 is reset and stationary. This ensures that the pressure head 7 can enter the corresponding forming cavity 4 directly below for extrusion molding. After extrusion molding is completed, when the pressure head 7 and the rack assembly 61 move upward, the pawl 131 rotates in the opposite direction. At this time, the pawl 131 does not drive the ratchet 141 and the single-turn reciprocating screw 14 to rotate. At this time, the moving plate 15 and the forming cavity 4 above will not shake, thereby avoiding damage to the graphite electrode blank after molding in the forming cavity 4. Then the motor drives the vertical rod 9 to rotate 90° counterclockwise again. Continuing to operate the above steps can perform continuous extrusion molding.

[0025] Example 3: The extrusion molding device for graphite production in this example, based on Example 1, has a scraper 21 that can scrape off the impurities remaining on the upper surface of the moving plate 15 and discharge them into the slag discharge trough 22, facilitating automatic cleaning of the surface of the moving plate 15. The specific structure is shown in the attached diagram. Figure 11 As shown, a scraper 21 is installed on the outer side of the molding cavity 4. The lowest point of the scraper 21 is on the same horizontal plane as the lowest point of the molding cavity 4, and the bottom surface of the scraper 21 is in contact with the upper surface of the moving plate 15. A slag discharge trough 22 is installed through the worktable 1 corresponding to the rear of the molding cavity 4 on the right side.

[0026] When the vertical rod 9 drives the molding cavity 4 to rotate, the bottom end of the scraper 21 on the outside of the molding cavity 4 is in close contact with the upper surface of the moving plate 15, so that the scraper 21 scrapes off the impurities remaining on the upper surface of the moving plate 15 and drops them into the slag discharge trough 22. Therefore, it is convenient to automatically clean the upper surface of the moving plate 15 and make it convenient to reuse the moving plate 15, thereby completing a series of tasks.

[0027] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A graphite production extrusion molding device comprising a workbench (1) and a supporting frame (2) installed above it, characterized in that: The upper surface of the workbench (1) is provided with a vertical rod (9) in the middle position, and the outer side of the vertical rod (9) is provided with a plurality of forming cavities (4) at equal intervals through a regulating assembly. The middle position of the support frame (2) is provided with an electric push rod (3) penetratingly fixed, and the output end of the electric push rod (3) is provided with a support plate (6). The right side and the rear side of the lower side of the support plate (6) are provided with a pressure head (7) and a pushing column (8), respectively. The corresponding workbench (1) in the lower side of the forming cavity (4) on the right side of the vertical rod (9) is provided with a shaking assembly, and the corresponding workbench (1) in the lower side of the forming cavity (4) on the rear side is provided with a discharging hole (20). The lower side of the workbench (1) is provided with a temporary storage plate (5) inside.

2. The extrusion molding device for graphite production according to claim 1, characterized in that: The regulating assembly comprises a guide rod (91) fixed in the groove on the outer side of the vertical rod (9), and a second mounting block (11) penetratingly arranged on the outer side of the guide rod (91). The outer side of the vertical rod (9) above the second mounting block (11) is connected with a first reset spring (92) in a nested manner. The inner side of the second mounting block (11) away from the guide rod (91) is provided with a first mounting block (10) in a slotted clamping and sliding connection. One end of the first mounting block (10) is connected with the inner side of the second mounting block (11) through a second reset spring (111), and the other end of the first mounting block (10) is connected with the forming cavity (4).

3. The extrusion molding device for graphite production according to claim 1, characterized in that: The lowest point of the pressure head (7) is higher than the lowest point of the pushing column (8), and the height of the pressure head (7) is less than the height of the pushing column (8). The height of the pushing column (8) is greater than the height of the forming cavity (4).

4. The extrusion molding device for graphite production according to claim 1, characterized in that: The bottom surface of the forming cavity (4) is in contact with the upper surface of the workbench (1), and the first magnet block (41) is embedded and installed at the four corners of the bottom surface of the forming cavity (4). The lower surface of the first magnet block (41) is flush with the lower surface of the forming cavity (4).

5. The extrusion molding device for graphite production according to claim 4, characterized in that: The shaking assembly comprises a moving plate (15) slidingly connected in the groove in the corresponding workbench (1) below the forming cavity (4) on the right side. The upper surface of the moving plate (15) is flush with the upper surface of the workbench (1), and the second magnet block (151) is embedded and installed at the four corners of the upper surface of the moving plate (15). The upper surface of the second magnet block (151) is flush with the upper surface of the moving plate (15), and the first magnet block (41) and the second magnet block (151) have different magnetic poles.

6. The extrusion molding device for graphite production according to claim 5, characterized in that: The right side of the moving plate (15) is slidably connected with a push column (12) in the workbench (1), and the rear side of the push column (12) is fixedly connected with a connecting plate (121), the rear end of the connecting plate (121) is threadedly connected with a single-rotation reciprocating screw rod (14) inside, the left end of the single-rotation reciprocating screw rod (14) is rotatably connected with the right side of the workbench (1), the left end of the single-rotation reciprocating screw rod (14) is connected with a ratchet wheel (141) outside by a key, the left end of the single-rotation reciprocating screw rod (14) is provided with a rotating frame (13) outside, the left side of the rotating frame (13) is rotatably connected with the right side of the workbench (1), and the inner side of the rotating frame (13) is provided with a pawl (131) connected with the ratchet wheel (141), and the outer side of the rotating frame (13) is provided with a gear ring (132).

7. The extrusion molding device for graphite production according to claim 6, characterized in that: The right side of the support plate (6) is provided with a rack assembly (61), and the lower front side of the rack assembly (61) is meshingly connected with the gear ring (132).

8. The extrusion molding device for graphite production according to claim 7, characterized in that: The left side of the moving plate (15) is provided with a first gas storage pipe (16) in the workbench (1), the right side of the first gas storage pipe (16) is connected with a first piston assembly (162) through a connecting spring (161) inside, and the right side of the first piston assembly (162) is provided with the moving plate (15).

9. The extrusion molding device for graphite production according to claim 8, characterized in that: The lower side of the moving plate (15) is provided with a second gas storage pipe (18) in the workbench (1), the upper side of the second gas storage pipe (18) is connected with a second piston assembly (181) inside, the upper end of the second piston assembly (181) is connected with a push plate (19), the upper surface of the push plate (19) is embeddedly connected with a roller (191), the upper surface of the roller (191) is connected with the moving plate (15), and the lower side of the first gas storage pipe (16) is connected with the inside of the second gas storage pipe (18) through a connecting pipe (17).

10. The extrusion molding device for graphite production according to claim 1, characterized in that: The outer side of the forming cavity (4) is provided with a scraper (21), the lowest point of the scraper (21) is on the same horizontal plane as the lowest point of the forming cavity (4), the bottom surface of the scraper (21) is connected with the upper surface of the moving plate (15), and the rear side of the right forming cavity (4) is provided with a slag discharge groove (22) in the workbench (1).

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