Cutting machine special for bipolar plate graphene and using method of cutting machine

Abstract

The invention relates to a cutting machine special for bipolar plate graphene and a using method of the cutting machine, and belongs to the technical field of cutting machines. The cutting machine comprises a cutting machine rack, a feeding support, a discharging support, a driving frame, a limiting side plate, an upper cutting die, a lower cutting die, an upper inner side limiting plate, an upper outer side limiting frame, a spring rod and a discharging conveyor; the feeding support and the discharging support are installed on the two sides of the cutting machine rack correspondingly, and the supporting supports are fixedly installed on the feeding support and the discharging support correspondingly. According to the cutting machine special for the bipolar plate graphene, cutting machining can be conducted on bipolar plates with different widths, good applicability is achieved, the bipolar plates sprayed with graphene coatings can be safely cut, the cutting machine is suitable for cutting work of the brittle bipolar plates, the cutting protection assembly is arranged, and the cutting efficiency is improved. And the bipolar plate sprayed with the graphene coating can be rapidly and safely cut, so that the cutting edges of the double-sided plate can be prevented from being broken, the surface coating is prevented from being damaged, and the finished product quality is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of cutting machines, and in particular to a bipolar plate graphene special cutting machine and a use method thereof. Background Art

[0002] The bipolar plate, also known as the current collecting plate, provides a gas flow channel to prevent the hydrogen and oxygen in the battery gas chamber from communicating with each other and to establish a current path between the positive and negative poles in series. The bipolar plate is one of the important components of the fuel cell. The bipolar plate of the fuel cell is the "skeleton" in the stack and is assembled with the membrane electrode layer to form a stack. It plays an important role in supporting, collecting current and distributing gas in the fuel cell.

[0003] Graphite bipolar plate is a high-tech material with a wide range of uses. It can be used in battery manufacturing. Graphite bipolar plate can be used as the positive or negative electrode of the battery. In the battery, the function of graphite bipolar plate is to store charge and generate electrical energy. Therefore, graphite bipolar plate is an indispensable material in battery manufacturing. In order to improve the performance of graphite bipolar plate, the existing technology will coat modified metals, resins and other materials on the surface of graphite bipolar plate. Graphene coating can be applied to the surface of graphite bipolar plate to improve performance due to its thin structure, high strength, high conductivity and good barrier properties.

[0004] After the graphene bipolar plate sprayed with graphene coating is carved and pressed to form a material strip, it needs to be cut so that the entire produced graphene bipolar plate can be quickly separated into single plates for subsequent processing. However, the graphene bipolar plate is relatively brittle as a whole. When cutting it, it is necessary to ensure that it is neatly separated from the residual plate and discharged separately. For this reason, a bipolar plate graphene special cutting machine and a method of using the same are proposed. The machine is provided with a cutting tool that is easy to replace, and can quickly cut the overall thin and brittle bipolar plate graphene, so that the bipolar plate material strip that has been carved, pressed and sprayed with graphene coating can be quickly removed from the material strip and cut, and the bipolar plate can be protected from damage and scratches during the cutting process, thereby preventing the graphene coating on the surface of the bipolar plate from being damaged, thereby ensuring the quality of the finished bipolar plate. Summary of the invention

[0005] The present invention provides a bipolar plate graphene-specific cutting machine and a method for using the same, which solves the problems raised by the above-mentioned prior art. The machine can cut bipolar plates of different widths and has good applicability. The machine can safely cut bipolar plates sprayed with graphene coatings and is suitable for cutting relatively brittle bipolar plates. A cutting protection component is provided to enable the bipolar plates sprayed with graphene coatings to be cut quickly and safely, thereby preventing the bipolar plate cutting edges from being broken and the surface coating from being damaged, thereby improving the quality of the finished product.

[0006] The solution of the present invention to solve the above technical problems is as follows: a bipolar plate graphene special cutting machine, including a cutting machine frame, a loading bracket, a unloading bracket, a driving frame, a limiting side plate, an upper cutting knife die, a lower cutting die, an upper inner limiting plate, an upper outer limiting frame, a spring rod, and a discharging conveyor. The loading bracket and the unloading bracket are respectively installed on both sides of the cutting machine frame, and the loading bracket and the unloading bracket are fixedly installed with a supporting bracket, and the supporting brackets on both sides are fixedly installed with a No. 1 hydraulic cylinder, and the driving frame is provided with two, and the No. 1 hydraulic cylinder is fixedly connected to the driving frame, and the driving frame is fixedly installed with a driving motor, and the driving end of the driving motor is fixedly installed with a driving roller, and the loading bracket and the unloading bracket are rotatably connected with a feeding roller, and the limiting side plate can be connected to the supporting bracket by screws, and the cutting machine frame is fixedly installed with a No. 2 hydraulic cylinder. Cylinder, No. 3 hydraulic cylinder, No. 4 hydraulic cylinder, the No. 2 hydraulic cylinder is fixedly installed with a connecting frame, the connecting frame is connected to the upper cutting die through screws, the lower cutting die can be connected to the cutting machine frame through screws, the cutting machine frame is provided with a material discharge slope, the material discharge slope is provided with a sponge pad, the connecting frame is fixedly installed with a positioning cylinder, the positioning cylinder is fixedly installed with a positioning spring, the positioning cylinder is slidably connected with a telescopic rod, the positioning spring is fixedly connected to the telescopic rod, the telescopic rod is fixedly connected with a mounting frame, the mounting frame can be connected to the upper inner limit plate through screws, the No. 3 hydraulic cylinder can be connected to the upper outer limit frame through screws, the No. 4 hydraulic cylinder is installed with a placement plate through screws, the spring rod can be installed on the placement plate through screws, the spring rod is fixedly installed with a rubber ball, and the discharging conveyor is placed at the outlet of the material discharge slope;

[0007] The method of use includes the following steps:

[0008] S1: The bipolar sheet strip sprayed with graphene coating can be loaded into the cutting machine frame through the loading bracket and discharged through the unloading bracket. The No. 1 hydraulic cylinder is started to drive the driving frame to press down. The driving motors on both sides are started through the same stepping controller. The driving motors on both sides can drive the driving rollers to rotate. The driving rollers on both sides can drive the bipolar sheet strip to load. Feeding rollers are provided in the loading bracket and the unloading bracket so that the bipolar sheet strip can be stably transported.

[0009] S2: According to the bipolar plate structure at the material strip, an upper cutting die, a lower cutting die, an upper inner limit plate, and an upper outer limit frame are selected. The upper cutting die is installed at the connecting frame, the lower cutting die is installed at the cutting machine frame, the upper inner limit plate is installed at the mounting frame, and the upper outer limit frame is installed at the No. 3 hydraulic cylinder;

[0010] S3: The material strip moves to the cutting position, and the No. 3 hydraulic cylinder is first started to drive the upper outer limit frame to press down. The upper outer limit frame can limit the bipolar plate material strip, and the No. 2 hydraulic cylinder is started to drive the upper cutting knife die to press down. Before the upper cutting knife die contacts the bipolar plate material strip, the upper inner limit plate can first contact the bipolar plate material strip and compress the telescopic rod in the positioning spring, so that the upper inner limit plate can squeeze and position the bipolar plate material strip, so that the upper cutting knife die can pass through the gap between the upper inner limit plate and the upper outer limit frame to cut the bipolar plates in the bipolar plate material strip. The limiting effect of the lower cutting die, the upper inner limit plate and the upper outer limit frame can ensure stable cutting, and the lower cutting die, the upper inner limit plate and the upper outer limit frame can also protect other parts during the cutting process, thereby ensuring the cutting effect;

[0011] S4: After the cutting is completed, the No. 2 hydraulic cylinder and the No. 3 hydraulic cylinder can be started to reset, and the No. 4 hydraulic cylinder can be started to adjust the height of the rubber ball to convey the bipolar plate belt. The cut bipolar plate can slide from the unloading slope to the unloading conveyor under the push of the rubber ball. A sponge pad is provided on the top of the unloading slope to make the bipolar plate easier to install during the sliding process. The unloading conveyor can discharge the cut bipolar plate products smoothly, and the cut residue can be collected at the top of the unloading bracket.

[0012] Based on the above technical solution, the present invention can also be improved as follows.

[0013] Furthermore, the drive motors on both sides are stepper motors, and the stepper motors on both sides are connected to the same stepper controller, so that the drive motors on both sides can be started and stopped synchronously. The stepper motor is a motor that converts an electrical pulse signal into a corresponding angular displacement or linear displacement. Every time a pulse signal is input, the rotor rotates an angle or moves forward. The output angular displacement or linear displacement is proportional to the number of input pulses, and the rotation speed is proportional to the pulse frequency, so that the bipolar sheet belt can be stably transported.

[0014] Furthermore, the driving roller is rotatably connected to the inner wall of the driving frame, and the outer wall of the driving roller is provided with an anti-slip rubber pad, so that the driving roller can stably drive the bipolar plate material belt for transportation.

[0015] Furthermore, the support bracket is provided with a strip hole corresponding to the limiting side plate, and the screw passes through the strip hole and is connected to the limiting side plate, so that the position of the limiting side plate can be adjusted at the support bracket.

[0016] Furthermore, the cutting machine frame is provided with a placement groove corresponding to the lower cutting mold, the upper cutting die is provided with a cutting tool, and the lower cutting mold is provided with a knife groove corresponding to the cutting tool. The tool of the upper cutting die is inserted into the lower cutting mold to cut the bipolar plate.

[0017] Furthermore, a smooth film is provided on the surface of the sponge pad, so that the bipolar plate can slide down smoothly for unloading.

[0018] The beneficial effects of the present invention are as follows: the present invention provides a bipolar plate graphene special cutting machine and a method for using the same, which have the following advantages:

[0019] 1. According to the bipolar plate structure at the material strip, select the upper cutting die, the lower cutting die, the upper inner limit plate, and the upper outer limit frame. The upper cutting die is installed on the connecting frame, the lower cutting die is installed on the cutting machine frame, the upper inner limit plate is installed on the mounting frame, and the upper outer limit frame is installed on the No. 3 hydraulic cylinder, so that the cutting mechanism can be disassembled and replaced according to needs, making the cutting machine have better applicability;

[0020] 2. The thin and brittle bipolar plate graphene can be quickly cut, so that the bipolar plate strip after engraving, pressing and spraying graphene coating can be quickly removed from the strip, and the bipolar plate can be protected from damage and scratches during the cutting process, thereby preventing the graphene coating on the surface of the bipolar plate from being damaged, thereby ensuring the quality of the finished bipolar plate;

[0021] 3. Such a bipolar plate graphene-specific cutting machine can cut bipolar plates of different widths and has good applicability. It can safely cut bipolar plates sprayed with graphene coatings and is suitable for cutting more brittle bipolar plates. It is equipped with a cutting protection component to enable the bipolar plates sprayed with graphene coatings to be cut quickly and safely, thereby preventing the bipolar plate cutting edges from breaking and the surface coating from being damaged, and improving the quality of the finished product.

[0022] The above description is only an overview of the technical solution of the present invention. In order to more clearly understand the technical means of the present invention and implement it according to the contents of the specification, the following is a detailed description of the preferred embodiments of the present invention in conjunction with the accompanying drawings. The specific implementation of the present invention is given in detail by the following embodiments and their accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The drawings described herein are used to provide a further understanding of the present invention and constitute a part of this application. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the drawings:

[0024] Figure 1 A schematic structural diagram of a bipolar plate graphene cutting machine and a method of using the same provided in one embodiment of the present invention;

[0025] Figure 2 A front view of a bipolar plate graphene cutting machine and a method for using the same provided in one embodiment of the present invention;

[0026] Figure 3A schematic diagram of the structure inside a cutting machine frame in a bipolar plate graphene cutting machine and a method for using the same provided in one embodiment of the present invention;

[0027] Figure 4 A schematic diagram of the structure of a bipolar plate graphene cutting machine and a method for using the same provided in an embodiment of the present invention, from a top view of a cutting machine frame;

[0028] Figure 5 A schematic structural diagram of a bottom-mounted cutting mold in a bipolar plate graphene-specific cutting machine and a method for using the same provided in one embodiment of the present invention;

[0029] Figure 6 A schematic diagram of the structure of a side view angle of a blanking bracket in a bipolar plate graphene cutting machine and a method for using the same provided in one embodiment of the present invention;

[0030] Figure 7 A schematic diagram of the structure of a driving frame in a bipolar plate graphene cutting machine and a method for using the same provided in one embodiment of the present invention;

[0031] Figure 8 A schematic structural diagram of a placement plate in a bipolar plate graphene-specific cutting machine and a method for using the same provided in one embodiment of the present invention.

[0032] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0033] 1. Cutting machine frame; 2. Loading bracket; 3. Unloading bracket; 4. Support bracket; 5. No. 1 hydraulic cylinder; 6. Driving frame; 7. Driving motor; 8. Driving roller; 9. Feeding roller; 10. Limiting side plate; 11. No. 2 hydraulic cylinder; 12. No. 3 hydraulic cylinder; 13. No. 4 hydraulic cylinder; 14. Connecting frame; 15. Upper cutting die; 16. Lower cutting die; 17. Unloading slope; 18. Sponge pad; 19. Positioning cylinder; 20. Positioning spring; 21. Telescopic rod; 22. Mounting frame; 23. Upper inner limit plate; 24. Upper outer limit frame; 25. Placement plate; 26. Spring rod; 27. Rubber ball; 28. Unloading conveyor. DETAILED DESCRIPTION

[0034] The following is combined with Figure 1-8 The principles and features of the present invention are described, and the examples are only used to explain the present invention and are not used to limit the scope of the present invention. In the following paragraphs, the present invention is described in more detail by way of example with reference to the accompanying drawings. The advantages and features of the present invention will become clearer according to the following description and claims. It should be noted that the drawings are all in a very simplified form and are not in precise proportions, and are only used to facilitate and clearly assist in explaining the purpose of the embodiments of the present invention.

[0035] It should be noted that when a component is referred to as being "fixed to" another component, it may be directly on the other component or there may also be a component centered. When a component is considered to be "connected to" another component, it may be directly connected to the other component or there may also be a component centered. When a component is considered to be "set on" another component, it may be directly set on the other component or there may also be a component centered. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only.

[0036] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art of the present invention. The terms used herein in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "and / or" used herein includes any and all combinations of one or more related listed items.

[0037] like Figure 1-8 As shown, the present invention provides a bipolar plate graphene special cutting machine, including a cutting machine frame 1, a feeding bracket 2, a discharging bracket 3, a driving frame 6, a limiting side plate 10, an upper cutting knife die 15, a lower cutting mold 16, an upper inner limiting plate 23, an upper outer limiting frame 24, a spring rod 26, and a discharging conveyor 28. The feeding bracket 2 and the discharging bracket 3 are respectively installed on both sides of the cutting machine frame 1, and the feeding bracket 2 and the discharging bracket 3 are fixedly installed with a supporting bracket 4, and the supporting brackets 4 on both sides are fixedly installed with a No. 1 hydraulic cylinder 5. The driving frame 6 is provided with two, and the No. 1 hydraulic cylinder 5 is fixedly connected to the driving frame 6. The driving frame 6 is fixedly installed with a driving motor 7, and a driving roller 8 is fixedly installed at the driving end of the driving motor 7. The feeding bracket 2 and the discharging bracket 3 are rotatably connected with a feeding roller 9. The limiting side plate 10 can be connected to the supporting bracket 4 by screws. The cutting machine frame 1 is fixedly installed with a No. 2 hydraulic cylinder 11, a No. 3 hydraulic cylinder 12, The No. 4 hydraulic cylinder 13 and the No. 2 hydraulic cylinder 11 are fixedly installed with a connecting frame 14, which is connected to the upper cutting die 15 by screws, and the lower cutting die 16 can be connected to the cutting machine frame 1 by screws. The cutting machine frame 1 is provided with a material discharge slope 17, and the material discharge slope 17 is provided with a sponge pad 18. The connecting frame 14 is fixedly installed with a positioning cylinder 19, and the positioning cylinder 19 is fixedly installed with a positioning spring 20. The positioning cylinder 19 is slidably connected with a telescopic rod 21, and the positioning spring 20 is fixedly connected to the telescopic rod 21. The telescopic rod 21 is fixedly connected with a mounting frame 22, and the mounting frame 22 can be connected to the upper inner limit plate 23 by screws. The No. 3 hydraulic cylinder 12 can be connected to the upper outer limit frame 24 by screws. The No. 4 hydraulic cylinder 13 is installed with a placement plate 25 by screws, and a spring rod 26 can be installed on the placement plate 25 by screws. The spring rod 26 is fixedly installed with a rubber ball 27, and a discharge conveyor 28 is placed at the outlet of the material discharge slope 17.

[0038] Preferably, the driving motors 7 on both sides are stepper motors, and the stepper motors on both sides are connected to the same stepper controller, so that the driving motors 7 on both sides can be started and stopped synchronously. The stepper motor is a motor that converts an electrical pulse signal into a corresponding angular displacement or linear displacement. For each input pulse signal, the rotor rotates an angle or a plurality of degrees. Preferably, the output angular displacement or linear displacement is proportional to the input pulse number, and the rotation speed is proportional to the pulse frequency, so that the bipolar sheet material belt can be stably transported.

[0039] Preferably, the driving roller 8 is rotatably connected to the inner wall of the driving frame 6, and the outer wall of the driving roller 8 is provided with an anti-slip rubber pad, so that the driving roller 8 can stably drive the bipolar plate material belt for transportation.

[0040] Preferably, the support bracket 4 is provided with a strip hole corresponding to the limiting side plate 10 , and the screw passes through the strip hole to connect with the limiting side plate 10 , so that the position of the limiting side plate 10 can be adjusted at the support bracket 4 .

[0041] Preferably, the cutting machine frame 1 is provided with a placement groove corresponding to the lower cutting mold 16, the upper cutting die 15 is provided with a cutting tool, and the lower cutting mold 16 is provided with a knife groove corresponding to the cutting tool, and the tool of the upper cutting die 15 can be inserted into the lower cutting mold 16 to cut the bipolar plate.

[0042] Preferably, the surface of the sponge pad 18 is provided with a smooth film so that the bipolar plate can slide down smoothly for unloading.

[0043] The specific working principle and use method of the present invention are:

[0044] S1: The bipolar sheet strip after the graphene coating is sprayed can be loaded through the loading bracket 2 and transferred to the cutting machine frame 1 and discharged through the unloading bracket 3. The No. 1 hydraulic cylinder 5 is started to drive the driving frame 6 to press down, and the driving motors 7 on both sides are started through the same stepping controller. The driving motors 7 on both sides can drive the driving rollers 8 to rotate, and the driving rollers 8 on both sides can drive the bipolar sheet strip to load. Feeding rollers 9 are provided in the loading bracket 2 and the unloading bracket 3 so that the bipolar sheet strip can be stably transported;

[0045] S2: According to the bipolar plate structure at the material strip, an upper cutting die 15, a lower cutting die 16, an upper inner limit plate 23, and an upper outer limit frame 24 are selected. The upper cutting die 15 is installed at the connecting frame 14, the lower cutting die 16 is installed at the cutting machine frame 1, the upper inner limit plate 23 is installed at the mounting frame 22, and the upper outer limit frame 24 is installed at the No. 3 hydraulic cylinder 12;

[0046] S3: The material strip moves to the cutting position. First, the No. 3 hydraulic cylinder 12 is started to drive the upper outer limit frame 24 to press down. The upper outer limit frame 24 can limit the bipolar sheet material strip. The No. 2 hydraulic cylinder 11 is started to drive the upper cutting die 15 to press down. Before the upper cutting die 15 contacts the bipolar sheet material strip, the upper inner limit plate 23 can contact the bipolar sheet material strip first and compress the telescopic rod 21 in the positioning spring 20, so that the upper inner limit plate 23 can squeeze the bipolar sheet material strip. The upper cutting die 15 can pass through the gap between the upper inner limiting plate 23 and the upper outer limiting frame 24 to cut the bipolar plates in the bipolar plate strip. The bipolar plates can be stably cut under the limiting effect of the lower cutting die 16, the upper inner limiting plate 23 and the upper outer limiting frame 24. The lower cutting die 16, the upper inner limiting plate 23 and the upper outer limiting frame 24 can also protect other parts during the cutting process, thereby ensuring the cutting effect.

[0047] S4: After the cutting is completed, the No. 2 hydraulic cylinder 11 and the No. 3 hydraulic cylinder 12 can be started to reset, and the No. 4 hydraulic cylinder 13 can be started to adjust the height of the rubber ball 27 to convey the bipolar plate belt. The cut bipolar plate can slide from the unloading slope 17 to the discharging conveyor 28 under the manipulation of the rubber ball 27. A sponge pad 18 is provided on the top of the unloading slope 17, so that the bipolar plate can be more easily installed during the sliding process. The discharging conveyor 28 can discharge the cut bipolar plate products smoothly, and the cut residue can be transferred and collected at the top of the unloading bracket 3.

[0048] It should be noted that, in this document, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Contents not described in detail in this specification belong to the prior art known to professionals in the field.

[0049] The above description is only a preferred embodiment of the present invention and does not limit the present invention in any form. Any ordinary technician in the industry can smoothly implement the present invention as shown in the drawings and described above. However, any equivalent changes, modifications and evolutions made by technicians familiar with the profession without departing from the scope of the technical solution of the present invention using the technical content disclosed above are all equivalent embodiments of the present invention. At the same time, any equivalent changes, modifications and evolutions made to the above embodiments based on the essential technology of the present invention are still within the protection scope of the technical solution of the present invention.

Claims

1. A bipolar plate graphene cutting machine, comprising a cutting machine frame (1), a feeding support (2), a discharging support (3), a driving frame (6), a limiting side plate (10), an upper cutting die (15), a lower cutting die (16), an upper inner limiting plate (23), an upper outer limiting frame (24), a spring rod (26), and a discharging conveyor (28), characterized in that: The feeding bracket (2) and the unloading bracket (3) are respectively mounted on two sides of the cutting machine frame (1); the feeding bracket (2) and the unloading bracket (3) are both fixedly mounted with a supporting bracket (4); the supporting brackets (4) on both sides are both fixedly mounted with a No. 1 hydraulic cylinder (5); two driving frames (6) are provided; the No. 1 hydraulic cylinder (5) is fixedly connected to the driving frame (6); the driving frame (6) is fixedly mounted with a driving motor (7); the driving end of the driving motor (7) is fixedly mounted with a driving cylinder (5); The feeding bracket (2) and the unloading bracket (3) are both rotatably connected to a feeding roller (9), the limiting side plate (10) can be connected to the supporting bracket (4) by screws, the cutting machine frame (1) is fixedly installed with a No. 2 hydraulic cylinder (11), a No. 3 hydraulic cylinder (12), and a No. 4 hydraulic cylinder (13), the No. 2 hydraulic cylinder (11) is fixedly installed with a connecting frame (14), the connecting frame (14) is connected to an upper cutting die (15) by screws, and the lower cutting die (15) is fixedly installed with a connecting frame (14) 16) can be connected to the cutting machine frame (1) by screws, the cutting machine frame (1) is provided with a material discharge slope (17), the material discharge slope (17) is provided with a sponge pad (18), the connecting frame (14) is fixedly installed with a positioning cylinder (19), the positioning cylinder (19) is fixedly installed with a positioning spring (20), the positioning cylinder (19) is slidably connected with a telescopic rod (21), the positioning spring (20) is fixedly connected to the telescopic rod (21), and the telescopic rod (21) is fixedly connected with A mounting frame (22), wherein the mounting frame (22) can be connected to an upper inner limit plate (23) by screws, the No. 3 hydraulic cylinder (12) can be connected to an upper outer limit frame (24) by screws, the No. 4 hydraulic cylinder (13) is installed with a placement plate (25) by screws, the spring rod (26) can be installed on the placement plate (25) by screws, the spring rod (26) is fixedly installed with a rubber ball (27), and the discharge conveyor (28) is placed at the exit of the discharge slope (17); The method of use includes the following steps: S1: The bipolar sheet material strip after spraying the graphene coating can be loaded through the loading bracket (2) and transferred to the cutting machine frame (1) and discharged through the unloading bracket (3). The No. 1 hydraulic cylinder (5) is started to drive the driving frame (6) to press down. The driving motors (7) on both sides are started through the same stepping controller. The driving motors (7) on both sides can drive the driving rollers (8) to rotate. The driving rollers (8) on both sides can drive the bipolar sheet material strip to load. Feeding rollers (9) are provided in the loading bracket (2) and the unloading bracket (3) so that the bipolar sheet material strip can be stably transported. S2: According to the bipolar plate structure at the material strip, an upper cutting die (15), a lower cutting die (16), an upper inner limit plate (23), and an upper outer limit frame (24) are selected, the upper cutting die (15) is installed at the connecting frame (14), the lower cutting die (16) is installed at the cutting machine frame (1), the upper inner limit plate (23) is installed at the mounting frame (22), and the upper outer limit frame (24) is installed at the No. 3 hydraulic cylinder (12); S3: The material strip moves to the cutting position. First, the No. 3 hydraulic cylinder (12) is started to drive the upper outer limit frame (24) to press downward. The upper outer limit frame (24) can limit the bipolar sheet material strip. The No. 2 hydraulic cylinder (11) is started to drive the upper cutting die (15) to press downward. Before the upper cutting die (15) contacts the bipolar sheet material strip, the upper inner limit plate (23) can contact the bipolar sheet material strip first and compress the telescopic rod (21) in the positioning spring (20), so that the upper inner limit plate (23) can limit the bipolar sheet material strip. The extrusion positioning allows the upper cutting die (15) to pass through the gap between the upper inner limiting plate (23) and the upper outer limiting frame (24) to cut the bipolar plates in the bipolar plate strip. The limiting effect of the lower cutting die (16), the upper inner limiting plate (23) and the upper outer limiting frame (24) allows the bipolar plates to be stably cut. The lower cutting die (16), the upper inner limiting plate (23) and the upper outer limiting frame (24) can also protect other parts during the cutting process, thereby ensuring the cutting effect. S4: After the cutting is completed, the No. 2 hydraulic cylinder (11) and the No. 3 hydraulic cylinder (12) can be started to reset, and the No. 4 hydraulic cylinder (13) can be started to adjust the height of the rubber ball (27) to convey the bipolar plate belt. The cut bipolar plate can slide from the unloading slope (17) to the discharging conveyor (28) under the action of the rubber ball (27). A sponge pad (18) is provided on the top of the unloading slope (17) so that the bipolar plate can be more easily installed during the sliding process. The discharging conveyor (28) can discharge the cut bipolar plate products smoothly, and the cut residue can be transferred and collected at the top of the unloading bracket (3).

2. A bipolar plate graphene cutting machine according to claim 1, characterized in that: The driving motors (7) on both sides are stepper motors, and the stepper motors on both sides are connected to the same stepper controller, so that the driving motors (7) on both sides can be started and stopped synchronously.

3. A bipolar plate graphene cutting machine according to claim 1, characterized in that: The driving roller (8) is rotatably connected to the inner wall of the driving frame (6), and the outer wall of the driving roller (8) is provided with an anti-slip rubber pad.

4. A bipolar plate graphene cutting machine according to claim 1, characterized in that: The support bracket (4) is provided with a strip hole corresponding to the limiting side plate (10), and a screw passes through the strip hole to connect with the limiting side plate (10).

5. The bipolar plate graphene cutting machine according to claim 1, characterized in that: The cutting machine frame (1) is provided with a placement groove corresponding to the lower cutting mold (16), the upper cutting die is provided with a cutting tool, and the lower cutting mold (16) is provided with a tool groove corresponding to the cutting tool.

6. A bipolar plate graphene cutting machine according to claim 1, characterized in that: The surface of the sponge pad (18) is provided with a smooth film.

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