Press machine for graphene production

By designing the workbench and raw material leveling mechanism, baffle lifting mechanism and fixed pulley replacement mechanism on the graphene production press, the uneven pressing and powder fluttering problems caused by uneven placement of graphene powder is solved, the working quality and working environment are improved, and the replacement process of fixed pulley is simplified.

CN119610755AInactive Publication Date: 2025-03-14NANTONG PROTO NEW MATERIAL TECH CO LTD
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Patent Information

Application Number
CN202411917679.0
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2024-12-24
Publication Date
2025-03-14
Estimated Expiration
Not applicable · inactive patent

AI Technical Summary

Technical Problem

The existing graphene production presses are used to process graphene powders due to uneven pressure due to uneven powder laying, which reduces the working quality. The powder is easily fluttered when the press drops, resulting in poor working environment. The fixed pulley is easily damaged after long-term use, making it difficult to replace quickly.

Method used

A press for graphene production is designed, equipped with a workbench and a raw material leveling mechanism, which drives the first motor through the second cylinder and pushes the graphene powder by using a square rod and a guide block; at the same time, the pressure plate and baffle lifting mechanism are driven by the first cylinder, and the powder is prevented from floating by using a wire rope and a fixed pulley; and the fixed pulley is quickly replaced by a fixed pulley replacement mechanism.

Benefits of technology

Through the use of raw material leveling mechanism, the uneven compression problem of graphene powder during processing is avoided, and the working quality is improved. Through the design of the baffle lifting mechanism and the fixed pulley replacement mechanism, the powder is prevented from floating, the working environment is improved, and the replacement process of the fixed pulley is simplified.

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Abstract

The invention relates to the technical field of graphene production equipment, in particular to a pressure machine for graphene production, which comprises a workbench, a raw material leveling mechanism is arranged outside the workbench, the upper end of the workbench is fixedly connected with four support columns, the outer wall of a pressure plate is attached to two fixing blocks, and the two fixing blocks are fixedly connected with the workbench. And a fixed pulley replacing mechanism is arranged at the upper end of the fixed block. Through cooperation of the workbench and the raw material flattening mechanism, a second air cylinder drives a first motor to move, the first motor drives a square rod to move through a first connecting rod and a second connecting rod, the square rod drives a guide block to move, and then redundant graphene powder is sucked into a collecting barrel through a suction valve; and the output shaft of the first motor rotates reversely, the first motor drives the square rod and the collecting barrel to reset in the mode, and in the mode, the situation that graphene is pressed unevenly when being machined by the press machine can be avoided, so that the working quality of the press machine for graphene production is improved.
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Description

Technical Field

[0001] The invention relates to the technical field of graphene production equipment, in particular to a press for graphene production. Background Art

[0002] Graphene is an allotrope of carbon, with carbon atoms bonded in sp² hybridization to form a single-layer hexagonal honeycomb lattice graphene. Graphene needs to be processed by a press during processing.

[0003] In the existing graphene production press, the operator places the graphene powder on the workbench. Since the graphene powder is not laid flat on the workbench, this causes uneven pressing of the press when processing the graphene powder, thereby reducing the working quality of the graphene production press.

[0004] At the same time, when processing graphene, the graphene powder will float when the press machine descends, which causes the working environment near the workbench to deteriorate during graphene processing.

[0005] Moreover, after long-term use, the fixed pulley used for synchronous movement of the baffle plate will be damaged, which leads to poor effect of synchronous movement, and the fixed pulley is not easy to disassemble and replace. Summary of the invention

[0006] The purpose of the present invention is to solve the problem that graphene powder is not laid flat on the workbench, which causes uneven pressing when the press processes the graphene powder, reduces the working quality of the press for graphene production, causes the graphene powder to float when the press descends, causes the working environment near the workbench to deteriorate during graphene processing, and the fixed pulley used for the synchronous movement of the baffle will be damaged after long-term use, thereby causing the effect of the synchronous movement to deteriorate, and the fixed pulley is not convenient to disassemble and replace, thereby proposing a press for graphene production.

[0007] To achieve the above object, the present invention provides the following technical solutions: A press machine for graphene production is designed, including a workbench, a raw material leveling mechanism is provided on the outside of the workbench, the upper end of the workbench is fixedly connected to four support columns, the upper ends of the support columns are fixedly connected to a top plate, the lower end of the top plate is fixedly connected to a first cylinder, the telescopic end of the first cylinder is fixedly connected to a pressing plate, baffle lifting mechanisms are provided on the left and right ends of the pressing plate, the outer wall of the pressing plate is fitted with two fixed blocks, and a fixed pulley replacement mechanism is provided on the upper end of the fixed block.

[0008] Preferably, the raw material leveling mechanism comprises a fixed plate, a square plate, a second cylinder, a first motor, a first connecting rod, a second connecting rod, a square rod, a box body, a suction pipe, a suction valve and a collection bucket; The ends of the two fixed plates are fixedly connected to the workbench, the ends of the fixed plates are fixedly connected to the square plate, the upper end of the square plate is fixedly connected to the end of the second cylinder, the output end of the second cylinder is fixedly connected to the first motor through a bracket, the output shaft of the first motor is fixedly connected to the first connecting rod, the end of the first connecting rod is movably connected to the second connecting rod through a pin shaft, the other end of the second connecting rod is movably connected to the square rod through a pin shaft, the rear end of the square rod is fixedly connected to the guide block, both sides of the square rod are fixedly connected to the box body, the upper end of the box body is fixedly connected to the straw, a suction valve is installed on the surface of the straw, and the upper end of the straw is fixedly connected to the collecting bucket.

[0009] Preferably, the outer wall of the workbench is fixedly connected to the end of the third cylinder, the telescopic end of the third cylinder is fixedly connected to the flat plate, and the lower end of the workbench is fixedly connected to the two vertical plates.

[0010] Preferably, the baffle lifting mechanism comprises a first transverse plate, a fixed pulley, a wire rope, a second transverse plate, a fourth cylinder, a connecting plate, a block and a roller; The outer wall of the first horizontal plate is fixedly connected to the pressure plate, the upper surface of the first horizontal plate is fixedly connected to the steel wire rope, the outer wall of the steel wire rope is fitted with the fixed pulley, the lower end of the steel wire rope is fixedly connected to the second horizontal plate, the upper surface of the second horizontal plate is fixedly connected to the fourth cylinder, the output end of the fourth cylinder is fixedly connected to the connecting plate, the outer wall of the connecting plate is fixedly connected to the block, the inner ends of the blocks are rotatably connected to two rollers through bearings, and the outer walls of the rollers are fitted with the steel wire rope.

[0011] Preferably, the fixed pulley replacement mechanism comprises a housing, a spring, a pull block, a conical block and a top block; The outer wall of the shell is fixedly connected to the pressure plate, a spring is installed on the outer wall of the shell, two ends of the spring are respectively fixedly connected to the shell and the pull block, the outer wall of the pull block is fixedly connected to the conical block, and the outer wall of the conical block is tightly against the top block.

[0012] Preferably, the outer walls of the two fixed pulleys are rotatably connected to the fixed block via a bearing and a bracket, and the outer wall of the second transverse plate is fixedly connected to the baffle.

[0013] Preferably, the outer wall of the top block fits with the pressure plate, and the outer wall of the shell fits with the fixing block.

[0014] Preferably, the outer wall of the baffle is slidably connected to the workbench via a sliding groove, and the position of the baffle matches the position of the pressure plate.

[0015] A press for graphene production proposed by the present invention has the beneficial effects that: through the cooperation of the workbench and the raw material leveling mechanism, the second cylinder drives the first motor to move, the first motor drives the square rod to move through the first connecting rod and the second connecting rod, the square rod drives the guide block to move, after the guide block moves to a suitable height so that it can flatten the graphene powder to the required height, the first motor drives the guide block to move in the above manner to flatten the upper surface of the graphene powder, and the excess graphene enters the box along the guide block, and then the excess graphene powder is sucked into the collection bucket through the suction valve, after the graphene powder is flattened, the output shaft of the first motor rotates in the opposite direction, and the first motor drives the square rod and the collection bucket to reset in the above manner, and the above manner can avoid the uneven compaction of graphene when it is processed by the press, thereby improving the working quality of the press for graphene production.

[0016] Through the cooperation of the pressure plate and the baffle lifting mechanism, the first cylinder drives the pressure plate to move downward, and the lower end of the pressure plate drives the first horizontal plate to move downward, the first horizontal plate pulls the wire rope to move, and the wire rope drives the second horizontal plate to move through the fixed pulley, and the second horizontal plate drives the baffle to move upward to block the floating graphene powder. While the first cylinder is working, the external power supply of the fourth cylinder is connected to the fourth cylinder, and the fourth cylinder drives the connecting plate to move, and the connecting plate drives the roller to move through the block. The roller rises close to the wire rope to prevent the wire rope from shaking, which avoids the floating of graphene powder when processing the graphene powder, thereby improving the working environment near the press.

[0017] Through the cooperation of the pressure plate and the fixed pulley replacement mechanism, the top block drives the conical block to move while pulling the spring to extend. After the conical block moves away from the top block, the operator removes the fixed block. After the fixed block drives the fixed pulley to be removed from the upper end of the pressure plate, a new fixed block is placed on the upper part of the pressure plate to wrap the wire rope around the fixed pulley. After that, the operator releases the pulling block, the spring reset drives the conical block to move, and the conical block is inserted into the top block to complete the replacement of the fixed pulley. The above method allows the operator to quickly replace the fixed pulley after it is damaged. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the appearance structure of the present invention; Figure 2 for Figure 1 Schematic diagram of the left view state; Figure 3 for Figure 2 Schematic diagram of the upward-looking state; Figure 4 for Figure 1 Schematic diagram of the rear view of the middle workbench; Figure 5 for Figure 4Schematic diagram of the upward-looking state; Figure 6 for Figure 4 A partial enlarged schematic diagram of the middle A part; Figure 7 for Figure 2 A partial three-dimensional schematic diagram of the middle baffle lifting mechanism; Figure 8 for Figure 2 A partial three-dimensional schematic diagram of the central fixed pulley replacement mechanism.

[0019] In the figure: 1, workbench, 2, raw material leveling mechanism, 201, fixed plate, 202, square plate, 203, second cylinder, 204, first motor, 205, first connecting rod, 206, second connecting rod, 207, square rod, 208, guide block, 209, box, 210, straw, 211, collection bucket, 3, support column, 4, top plate, 5, first cylinder, 6, baffle lifting mechanism, 601, first horizontal Plate, 602, fixed pulley, 603, wire rope, 604, second horizontal plate, 605, fourth cylinder, 606, connecting plate, 607, block, 608, roller, 7, pressure plate, 8, fixed pulley replacement mechanism, 801, shell, 802, spring, 803, pulling block, 804, conical block, 805, top block, 9, fixed block, 10, vertical plate, 11, third cylinder, 12, flat plate, 13, baffle. DETAILED DESCRIPTION

[0020] The present invention will be further described below in conjunction with the accompanying drawings: See attached Figure 1-8 : In the present embodiment, a graphene production press comprises a workbench 1, a raw material leveling mechanism 2 is arranged outside the workbench 1, the upper end of the workbench 1 is fixedly connected to four support columns 3, the upper ends of the support columns 3 are fixedly connected to a top plate 4, the lower end of the top plate 4 is fixedly connected to a first cylinder 5, the model of the first cylinder 5 is selected according to actual needs, and the selection can meet the work needs, the telescopic end of the first cylinder 5 is fixedly connected to a pressing plate 7, the first cylinder 5 drives the pressing plate 7 to move, the left and right ends of the pressing plate 7 are provided with a baffle lifting mechanism 6, the outer wall of the pressing plate 7 is fitted with two fixed blocks 9, the pressing plate 7 drives the fixed block 9 to move, and the upper end of the fixed block 9 is provided with a fixed pulley replacement mechanism 8; The outer wall of the workbench 1 is fixedly connected to the end of the third cylinder 11. The model of the third cylinder 11 can be selected according to actual needs and can meet the working needs. The telescopic end of the third cylinder 11 is fixedly connected to the flat plate 12, and the third cylinder 11 drives the flat plate 12 to move. The lower end of the workbench 1 is fixedly connected to the two vertical plates 10. The outer walls of the two fixed pulleys 602 are rotatably connected to the fixed block 9 through bearings and brackets. The fixed pulley 602 rotates on the fixed block 9. The outer wall of the second cross plate 604 is fixedly connected to the baffle 13. The outer wall of the top block 805 is fitted with the pressure plate 7. The outer wall of the shell 801 is fitted with the fixed block 9. The shell 801 drives the fixed block 9 to move. The outer wall of the baffle 13 is slidably connected to the workbench 1 through a slide groove. The baffle 13 slides on the workbench 1, and the position of the baffle 13 matches the position of the pressure plate 7.

[0021] The material leveling mechanism 2 includes a fixed plate 201, a square plate 202, a second cylinder 203, a first motor 204, a first connecting rod 205, a second connecting rod 206, a square rod 207, a guide block 208, a box body 209, a suction pipe 210 and a collection bucket 211; The ends of the two fixed plates 201 are fixedly connected to the workbench 1, the ends of the fixed plates 201 are fixedly connected to the square plate 202, the upper ends of the square plate 202 are fixedly connected to the ends of the second cylinder 203, the square plate 202 fixes the position of the second cylinder 203, the model of the second cylinder 203 is selected according to actual needs, and the selection meets the work needs, the output end of the second cylinder 203 is fixedly connected to the first motor 204 through the bracket, the second cylinder 203 drives the first motor 204 to move, the model of the first motor 204 is selected according to actual needs, and the selection meets the work needs, the output shaft of the first motor 204 is fixedly connected to the first connecting rod 205, and the first motor 204 drives the first connecting rod 205 Rotate, the end of the first connecting rod 205 is movably connected to the second connecting rod 206 through a pin shaft, the first connecting rod 205 drives the second connecting rod 206 to rotate, the other end of the second connecting rod 206 is movably connected to the square rod 207 through a pin shaft, the second connecting rod 206 drives the square rod 207 to move, the rear end of the square rod 207 is fixedly connected to the guide block 208, the square rod 207 drives the guide block 208 to move, both sides of the square rod 207 are fixedly connected to the box body 209, the square rod 207 drives the box body 209 to move, the upper end of the box body 208 is fixedly connected to the straw 210, a suction valve is installed on the surface of the straw 210, the upper end of the straw 210 is fixedly connected to the collecting bucket 211, the straw 210 drives the collecting bucket 211 to move.

[0022] Through the cooperation of the workbench 1 and the raw material leveling mechanism 2, the second cylinder 203 drives the first motor 204 to move, and the first motor 204 drives the square rod 207 to move through the first connecting rod 205 and the second connecting rod 206, and the square rod 207 drives the guide block 208 to move. After the guide block 208 moves to a suitable height so that it can flatten the graphene powder to a required height, the first motor 204 drives the guide block 208 to move in the above manner to flatten the upper surface of the graphene powder, and the excess graphene enters the box 209 along the guide block 208, and then the excess graphene powder is sucked into the collection bucket 211 through the suction pipe 210. After the graphene powder is flattened, the output shaft of the first motor 204 rotates in the opposite direction, and the first motor 204 drives the square rod 207 and the collection bucket 211 to reset in the above manner. The above manner can avoid the uneven compression of graphene when it is processed by the press, which improves the working quality of the press for graphene production.

[0023] The baffle lifting mechanism 6 includes a first transverse plate 601, a fixed pulley 602, a steel wire rope 603, a second transverse plate 604, a fourth cylinder 605, a connecting plate 606, a block 607 and a roller 608; The outer wall of the first transverse plate 601 is fixedly connected to the pressure plate 7, the upper surface of the first transverse plate 601 is fixedly connected to the wire rope 603, the wire rope 603 drives the first transverse plate 601 to move, the outer wall of the wire rope 603 fits the fixed pulley 602, the wire rope 603 slides on the fixed pulley 602, the lower end of the wire rope 603 is fixedly connected to the second transverse plate 604, the wire rope 603 drives the second transverse plate 604 to move, the upper surface of the second transverse plate 604 is fixedly connected to the fourth cylinder 605, the model of the fourth cylinder 605 The selection is based on actual needs and the selection meets the work needs. The output end of the fourth cylinder 605 is fixedly connected to the connecting plate 606. The fourth cylinder 605 drives the connecting plate 606 to move. The outer wall of the connecting plate 606 is fixedly connected to the block 607. The connecting plate 606 drives the block 607 to move. The inner ends of the blocks 607 are rotatably connected to the two rollers 608 through bearings. The blocks 607 drive the rollers 608 to move. The outer walls of the rollers 608 are in contact with the wire rope 603, and the rollers 608 are close to the wire rope 603.

[0024] Through the cooperation of the pressing plate 7 and the baffle lifting mechanism 6, the first cylinder 5 drives the pressing plate 7 to move downward, and the lower end of the pressing plate 7 drives the first transverse plate 601 to move downward, and the first transverse plate 601 pulls the wire rope 603 to move, and the wire rope 603 drives the second transverse plate 604 to move through the fixed pulley 602, and the second transverse plate 604 drives the baffle 13 to move upward to block the floating graphene powder. While the first cylinder 5 is working, the external power supply of the fourth cylinder 605 is connected, and the fourth cylinder 605 is started. The fourth cylinder 605 drives the connecting plate 606 to move, and the connecting plate 606 drives the roller 608 to move through the block 607. The roller 608 rises close to the wire rope 603 to prevent the wire rope 603 from shaking, which avoids the floating of the graphene powder when the graphene powder is processed, thereby improving the working environment near the press.

[0025] The fixed pulley replacement mechanism 8 includes a housing 801, a spring 802, a pull block 803, a conical block 804 and a top block 805; The outer wall of the shell 801 is fixedly connected to the pressure plate 7, and a spring 802 is installed on the outer wall of the shell 801. The elastic coefficient of the spring 802 is selected according to actual needs and can be selected to meet working needs. The two ends of the spring 802 are respectively fixedly connected to the shell 801 and the pull block 803, and the outer wall of the pull block 803 is fixedly connected to the conical block 804. The pull block 803 drives the conical block 804 to move, and the outer wall of the conical block 804 is tightly pressed against the top block 805, and the conical block 804 presses the top block 805.

[0026] Through the cooperation of the pressure plate 7 and the fixed pulley replacement mechanism 8, the top block 805 drives the conical block 804 to move while pulling the spring 802 to extend. After the conical block 804 moves away from the top block 805, the operator removes the fixed block 9. After the fixed block 9 drives the fixed pulley 602 to be removed from the upper end of the pressure plate 7, a new fixed block 9 is placed on the upper part of the pressure plate 7 to wrap the wire rope 603 around the fixed pulley 602. Then the operator releases the pulling block 803, the spring 802 resets and drives the conical block 804 to move, and the conical block 804 is inserted into the top block 805 to complete the replacement of the fixed pulley 602. The above method allows the operator to quickly replace the fixed pulley after it is damaged.

[0027] Working principle: When graphene powder needs to be processed by a press: Preparation stage: First, the operator pours the graphene powder to be processed onto the workbench 1, then connects the external power supply of the second cylinder 203, starts the second cylinder 203, and the second cylinder 203 drives the first motor 204 to move. The first motor 204 drives the square rod 207 to move through the first connecting rod 205 and the second connecting rod 206, and the square rod 207 drives the guide block 208 to move. After the guide block 208 moves to a suitable height so that it can flatten the graphene powder to the required height, the second cylinder 203 stops working, and then connects the first motor 204. The external power supply is connected to the first motor 204, and the first motor 204 drives the guide block 208 to move in the above manner to flatten the upper surface of the graphene powder. The excess graphene enters the box body 209 along the guide block 208, and then the excess graphene powder is sucked into the collection bucket 211 through the suction tube 210. After the graphene powder is flattened, the output shaft of the first motor 204 rotates in the opposite direction, and the first motor 204 drives the square rod 207 and the collection bucket 211 to reset in the above manner, and then the first motor 204 stops working.

[0028] Graphene powder processing stages: First, the external power supply of the third cylinder 11 is connected, and the third cylinder 11 is started. The third cylinder 11 drives the flat plate 12 to move downward. After the flat plate 12 is pressed against the ground, the third cylinder 11 stops working. Then, the external power supply of the first cylinder 5 is connected, and the first cylinder 5 is started. The first cylinder 5 drives the pressing plate 7 to move downward. The lower end of the pressing plate 7 drives the first transverse plate 601 to move downward. The first transverse plate 601 pulls the steel wire rope 603 to move. The steel wire rope 603 drives the second transverse plate 604 to move through the fixed pulley 602. The second transverse plate 604 drives the baffle 13 to move upward to block the floating graphene powder. While the first cylinder 5 is working, the external power supply of the fourth cylinder 605 is connected, and the fourth cylinder 605 is started. The fourth cylinder 605 drives the connecting plate 606 to move. The connecting plate 606 drives the roller 608 to move through the block 607. The roller 608 rises close to the steel wire rope 603 to prevent the steel wire rope 603 from shaking.

[0029] When the fixed pulley needs to be replaced after long-term use: The operator first pulls the top block 805, and the top block 805 drives the conical block 804 to move, while pulling the spring 802 to extend. After the conical block 804 moves away from the top block 805, the operator removes the fixed block 9. After the fixed block 9 drives the fixed pulley 602 to be removed from the upper end of the pressure plate 7, a new fixed block 9 is placed on the upper part of the pressure plate 7 to wrap the wire rope 603 around the fixed pulley 602. Then the operator releases the pulling block 803, the spring 802 resets and drives the conical block 804 to move, and the conical block 804 is inserted into the top block 805 to complete the replacement of the fixed pulley 602.

[0030] Although the present invention has been shown and described with reference to preferred embodiments, it will be understood by those skilled in the art that various changes in form and details may be made therein within the scope of the claims.

Claims

1. A graphene production press, comprising a workbench (1), characterized in that: A raw material leveling mechanism (2) is provided on the outside of the workbench (1); the upper end of the workbench (1) is fixedly connected to four support columns (3); the upper ends of the support columns (3) are fixedly connected to a top plate (4); the lower end of the top plate (4) is fixedly connected to a first cylinder (5); the telescopic end of the first cylinder (5) is fixedly connected to a pressing plate (7); baffle lifting mechanisms (6) are provided at the left and right ends of the pressing plate (7); the outer wall of the pressing plate (7) is in contact with two fixed blocks (9); and a fixed pulley replacement mechanism (8) is provided at the upper end of the fixed block (9).

2. A graphene production press according to claim 1, characterized in that: The material leveling mechanism (2) comprises a fixed plate (201), a square plate (202), a second cylinder (203), a first motor (204), a first connecting rod (205), a second connecting rod (206), a square rod (207), a guide block (208), a box body (209), a suction pipe (210) and a collection bucket (211); The ends of the two fixed plates (201) are fixedly connected to the workbench (1), the ends of the fixed plates (201) are fixedly connected to the square plate (202), the upper end of the square plate (202) is fixedly connected to the end of the second cylinder (203), the output end of the second cylinder (203) is fixedly connected to the first motor (204) via a bracket, the output shaft of the first motor (204) is fixedly connected to the first connecting rod (205), and the end of the first connecting rod (205) is fixedly connected to the first motor (204) via a pin. The second connecting rod (206) is movably connected, and the other end of the second connecting rod (206) is movably connected to the square rod (207) via a pin shaft. The rear end of the square rod (207) is fixedly connected to the guide block (208). Both sides of the square rod (207) are fixedly connected to the box body (209). The upper end of the box body (209) is fixedly connected to the suction pipe (210). A suction valve is installed on the surface of the suction pipe (210). The upper end of the suction pipe (210) is fixedly connected to the collection bucket (211).

3. A graphene production press according to claim 1, characterized in that: The outer wall of the workbench (1) is fixedly connected to the end of the third cylinder (11), the telescopic end of the third cylinder (11) is fixedly connected to the flat plate (12), and the lower end of the workbench (1) is fixedly connected to the two vertical plates (10).

4. A graphene production press according to claim 1, characterized in that: The baffle lifting mechanism (6) comprises a first transverse plate (601), a fixed pulley (602), a steel wire rope (603), a second transverse plate (604), a fourth cylinder (605), a connecting plate (606), a block (607) and a roller (608); The outer wall of the first transverse plate (601) is fixedly connected to the pressure plate (7), the upper surface of the first transverse plate (601) is fixedly connected to the steel wire rope (603), the outer wall of the steel wire rope (603) is in contact with the fixed pulley (602), the lower end of the steel wire rope (603) is fixedly connected to the second transverse plate (604), the upper surface of the second transverse plate (604) is fixedly connected to the fourth cylinder (605), the output end of the fourth cylinder (605) is fixedly connected to the connecting plate (606), the outer wall of the connecting plate (606) is fixedly connected to the block (607), the inner ends of the blocks (607) are rotatably connected to two rollers (608) via bearings, and the outer walls of the rollers (608) are in contact with the steel wire rope (603).

5. A graphene production press according to claim 1, characterized in that: The fixed pulley replacement mechanism (8) comprises a housing (801), a spring (802), a pulling block (803), a conical block (804) and a top block (805); The outer wall of the shell (801) is fixedly connected to the pressure plate (7), the outer wall of the shell (801) is installed with a spring (802), the two ends of the spring (802) are respectively fixedly connected to the shell (801) and the pull block (803), the outer wall of the pull block (803) is fixedly connected to the conical block (804), and the outer wall of the conical block (804) is tightly abutted against the top block (805).

6. A graphene production press according to claim 4, characterized in that: The outer walls of the two fixed pulleys (602) are rotatably connected to the fixed block (9) via bearings and brackets, and the outer wall of the second transverse plate (604) is fixedly connected to the baffle (13).

7. A graphene production press according to claim 5, characterized in that: The outer wall of the top block (805) fits with the pressure plate (7), and the outer wall of the shell (801) fits with the fixing block (9).

8. A graphene production press according to claim 6, characterized in that: The outer wall of the baffle (13) is slidably connected to the workbench (1) via a sliding groove, and the position of the baffle (13) matches the position of the pressing plate (7).