Bipolar plate production equipment for hydrogen production electrolytic cell

Abstract

The invention belongs to the technical field of bipolar plate production, and particularly relates to bipolar plate production equipment for a hydrogen production electrolytic bath, the bipolar plate production equipment for the hydrogen production electrolytic bath is used for producing a bipolar plate made of a metal material and comprises a protective bottom plate, and a stamping platform is arranged in the middle of the protective bottom plate; a first fixed connecting rod and a second fixed connecting rod are installed above and below the stamping platform and connected with the two sides of the protective bottom plate, a supporting plate is installed on one side of the protective bottom plate, a driving motor is fixedly installed on the supporting plate, and a driving wheel is installed at the output end of the driving motor. A feeding port is formed in the side, away from the supporting plate, of the protective bottom plate, a feeding baffle is installed on the feeding port, a stamping assembly is arranged above the feeding baffle and comprises an upper stamping unit and a lower stamping unit, and the upper stamping unit is used for executing stamping action; the lower stamping unit is matched with the upper stamping unit and used for assisting in stamping and fixing materials.

Description

Technical Field

[0001] The invention belongs to the technical field of bipolar plate production, and particularly relates to a bipolar plate production device for a hydrogen production electrolytic cell. Background Art

[0002] In the existing stamping process of bipolar plates made of metal materials, a unidirectional stamping method is usually adopted, that is, the stamping die stamps the plate from top to bottom. However, there are many deficiencies in this traditional stamping method. After stamping, it is necessary to manually take out and replace the bipolar plate. This process is not only inefficient, but also has a high safety risk because the operator needs to frequently contact the stamping equipment, which is prone to industrial injury accidents.

[0003] And alkaline electrolytic cells usually use strong alkaline electrolytes, and this environment is corrosive to the bipolar plate material. After long-term use, the unprotected bipolar plate may deteriorate in performance due to corrosion, and even affect the overall life of the electrolytic cell. Therefore, this application proposes a bipolar plate production device for a hydrogen production electrolytic cell to solve the above problems. Summary of the Invention

[0004] The purpose of the present invention is to provide a bipolar plate production device for a hydrogen production electrolytic cell to solve the problems raised in the above background art.

[0005] To solve the above technical problems, the present invention provides the following technical solution: A bipolar plate production device for a hydrogen production electrolytic cell, which is used to produce bipolar plates made of metal materials, includes a protective bottom plate and a stamping assembly. A stamping platform is arranged in the middle of the protective bottom plate. The stamping assembly includes an upper stamping unit and a lower stamping unit. The lower stamping unit cooperates with the upper stamping unit. A material pushing assembly is arranged on the upper stamping unit. A moving groove and a moving double rod are arranged on the upper stamping unit. A protective baffle and a rotating shaft are installed on the upper part of the protective bottom plate. A driven wheel is fixedly installed on one side of the rotating shaft close to the driving motor. A first rotating gear is fixedly installed at the other end of the rotating shaft. A transmission shaft is rotatably installed on the upper part of the protective baffle. A second rotating gear is fixedly installed on one side of the transmission shaft close to the first rotating gear. An eccentric wheel is installed in the middle of the transmission shaft. A swing plate is sleeved on the eccentric wheel. A concave plate is rotatably installed below the swing plate. An upper stamping rod is fixedly installed below the concave plate. An upper stamping plate is fixedly installed at the bottom of the upper stamping rod. The upper stamping plate and the stamping hole opened on the stamping platform are on the same central axis. A cam is fixedly installed on the side of the transmission rod away from the eccentric wheel, and a moving rod 2 is inserted on the fixed connecting rod 1 and the fixed connecting rod 2, and a fixed block is fixedly installed above the moving rod 2, and a moving circular plate is rotatably installed on the fixed block, and the moving circular plate contacts the outer contour surface of the cam, and a cylindrical block is fixedly installed below the moving rod 2, and a movable plate is rotatably installed on the cylindrical block, and a lower punching rod is rotatably installed on the other end of the movable plate, and a lower punching plate is fixedly installed above the lower punching rod, and the lower punching plate, the upper punching plate and the punching hole are all located on the same central axis, and a fixed straight plate is rotatably installed in the middle of the movable plate, and the fixed straight plate is fixedly installed below the protective bottom plate.

[0006] As a preferred solution, the rotating gear one is meshed with the rotating gear two, the driving wheel and the driven wheel are sleeved with a transmission belt, the movable circular plate is in contact with the cam surface, the movable rod two is inserted through the fixed connecting rod one and the fixed connecting rod two, and the upper punch rod is inserted through the fixed short rod two.

[0007] As a preferred solution, the pushing assembly includes a movable groove, a second sliding block, a T-shaped circular plate, a movable round rod, a movable double rod, a fixed short rod one, a fixed short rod two, a pushing plate, a pushing block, a spring, a supporting straight plate, a sliding groove and a sliding block one.

[0008] As a preferred scheme, a supporting straight plate is provided on the upper part of the side of the protective bottom plate close to the rotating gear one, and a sliding groove is opened on the supporting straight plate, and a sliding block 1 is slidably installed in the sliding groove, and a moving double rod is fixedly installed on the sliding block 1, and a moving round rod is fixedly installed above the moving double rod, and a T-shaped circular plate is fixedly installed on the end of the moving round rod away from the moving double rod, and a sliding block 2 is fixedly installed on the T-shaped circular plate. The moving groove is opened on the side of the rotating gear two close to the eccentric wheel, and the sliding block 2 is slidably installed in the moving groove, and a fixed short rod 1 and a fixed short rod 2 are fixedly installed in the middle and tail of the moving double rod, and the fixed short rod 1 is connected to the fixed connecting rod 1 by a spring to assist in resetting, and a push plate is fixedly installed on the fixed short rod 2, and a push block is fixedly installed under the push plate.

[0009] As a preferred solution, the upper punching unit includes a driven wheel and a rotating shaft, a rotating gear 1, a rotating gear 2, a transmission shaft, a swing plate, an eccentric wheel, a concave plate, an upper punching rod and an upper punching plate; The lower punching unit comprises a cam, a movable circular plate, a second movable rod, a fixed straight plate, a movable plate, a lower punching plate and a lower punching rod.

[0010] As a preferred solution, the pusher block is slidably matched with the punching platform, and the size of the pusher block is larger than the punching hole; The movable groove is non-circular in shape, and utilizes the sliding block 2 to slide in the movable groove, thereby causing the T-shaped circular plate to move forward and backward.

[0011] As a preferred solution, a fixed link 1 is installed above the stamping platform, a fixed link 2 is installed below the stamping platform, the protective base plate is overall "U"-shaped, and the fixed link 1 and the fixed link 2 are connected on both sides of the protective base plate; a support plate is installed on one side of the protective base plate, a drive motor is fixedly installed on the support plate, and a driving wheel is installed on the output end of the drive motor; a feed port is opened on the side of the protective base plate away from the support plate, a feed baffle is installed on the feed port, and a feed baffle is arranged below the stamping assembly.

[0012] As a preferred solution, the output end of the stamping platform is provided with a discharge port, and the discharge port is inclined.

[0013] As a preferred solution, the nickel-plated assembly includes a vertical plate, a liquid box, a gear 1, a gear 2, a runway groove, a chain, a triangular plate, a stick plate 1, a stick plate 2, a transmission plate and a sliding rod 1; A stick plate 1 is provided at the output end of the discharge port, a vertical plate is provided at the output end of the stick plate 1, a liquid tank is fixedly installed below the vertical plate, a gear 1 is rotatably installed above the vertical plate, a gear 2 is rotatably installed below the vertical plate, a runway groove is opened on the vertical plate, the runway groove surrounds the outside of gear 1 and gear 2, a chain is sleeved on the gear 1 and gear 2, a triangular plate is fixedly installed on both side transmission nodes of the chain, wherein a sliding rod 1 is penetrated and installed on the side of the triangular plate away from the chain, a transmission plate is installed on the end of the sliding rod 1 facing away from the vertical plate, the other end of the sliding rod 1 is slidably installed in the runway groove, and a stick plate 2 is obliquely provided on the side of the vertical plate away from the discharge port.

[0014] Compared with the prior art, the beneficial effects achieved by the present invention are: 1. A stamping assembly is provided. When the driving motor is started, the driving wheel rotates to transmit power to the driven wheel, and the driven wheel drives the rotating gear 1 and the rotating shaft to rotate, and the rotating gear 2 and the transmission shaft move. The transmission shaft drives the eccentric wheel, the cam and the rotating gear 1 to rotate, thereby controlling the bidirectional stamping of the upper stamping plate and the lower stamping plate, which can significantly improve the stamping accuracy and ensure that the size and shape of the bipolar plate are more in line with the design requirements, thereby improving the quality and consistency of the product.

[0015] 2. The feeding component is designed with a special moving groove, which enables the second sliding block to drive the T-shaped circular plate and the moving circular rod to move back and forth, completing the feeding action of the bipolar plate. It can immediately withdraw the bipolar plate after stamping, avoiding affecting the stamping forming of the next bipolar plate. Without manual intervention, it greatly improves production efficiency, reduces labor costs, and effectively avoids potential safety hazards caused by manual operation, making the entire stamping forming process more efficient, safe, and reliable. Description of the Drawings

[0016] The drawings are used to provide a further understanding of the present invention and form a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation to the present invention. In the drawings: Figure 1 is a schematic structural view of the first perspective of the embodiment of the present invention; Figure 2 is a schematic structural view of the second perspective of the embodiment of the present invention; Figure 3 is a schematic structural view of the third perspective of the embodiment of the present invention; Figure 4 is a schematic structural view of the fourth perspective of the embodiment of the present invention; Figure 5 is Figure 2 the enlarged structural view at A in Figure 6 is Figure 2 the enlarged structural view at B in Figure 7 is Figure 4 the enlarged structural view at C in Figure 8 is Figure 4 the enlarged structural view at D in Figure 9 is the schematic structural view of the nickel plating component of the embodiment of the present invention; Figure 10 is Figure 9 the enlarged structural view at E in In the figure: 1. Protective bottom plate; 2. Stamping platform; 201. Stamping hole; 3. Support plate; 4. Driving motor; 5. Driving wheel; 6. Feeding port; 7. Feeding baffle; 8. Stamping assembly; 8-1. Upper stamping unit; 801. Driven wheel; 802. Rotating shaft; 803. First rotating gear; 804. Second rotating gear; 805. Transmission shaft; 806. Swing plate; 807. Eccentric wheel; 808. Concave plate; 809. Upper stamping rod; 810. Upper stamping plate; 8-2. Lower stamping unit; 811. Cam; 812. Moving circular plate; 813. Second moving rod; 814. Fixed straight plate; 815. Movable plate; 816. Lower stamping plate; 817. Lower stamping rod; 9. Pushing component; 901. Moving groove; 902. Second sliding block; 903. T-shaped circular plate; 904. Moving circular rod; 905. Moving double rod; 906. First fixed short rod; 907. Second fixed short rod; 908. Pushing plate; 909. Pushing block; 910. Spring; 911. Support straight plate; 912. Sliding groove; 913. First sliding block; 10. First fixed connecting rod; 11. Second fixed connecting rod; 12. Discharge port; 13. Protective baffle; 14. Nickel plating component; 1401. Vertical plate; 1402. Liquid tank; 1403. First gear; 1404. Second gear; 1405. Raceway groove; 1406. Chain; 1407. Triangular plate; 1408. First stick plate; 1409. Second stick plate; 1410. Transmission plate; 1411. First sliding rod. Detailed implementation manner

[0017] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0018] Embodiment: As Figure 1 shown, this bipolar plate production equipment for hydrogen production electrolyzers is used to produce bipolar plates made of metal materials, including a protective bottom plate 1. A stamping platform 2 is arranged in the middle of the protective bottom plate 1. A first fixed connecting rod 10 and a second fixed connecting rod 11 are installed above and below the stamping platform. The first fixed connecting rod 10 and the second fixed connecting rod 11 are connected to both sides of the protective bottom plate 1. A support plate 3 is installed on one side of the protective bottom plate 1. A driving motor 4 is fixedly installed on the support plate 3. The output end of the driving motor 4 is installed with a driving wheel 5. A feeding port 6 is opened on the side of the protective bottom plate 1 away from the support plate 3. A feeding baffle 7 is installed on the feeding port 6. Above the feeding baffle 7 is arranged a stamping assembly 8.

[0019] The stamping assembly 8 includes an upper stamping unit 8-1 and a lower stamping unit 8-2. The upper stamping unit 8-1 is used to perform stamping actions. The lower stamping unit 8-2 cooperates with the upper stamping unit 8-1 and is used to assist in stamping and fixing the material to be processed. A material pushing assembly 9 is arranged on the upper stamping unit 8-1. A moving groove 901 and a moving double rod 905 are arranged on the upper stamping unit 8-1. The contour of the moving groove 901 enables the moving double rod 905 to cooperate with the stroke of the upper stamping unit 8-1 to push the processed material out of the stamping platform 2 by using the stamping process.

[0020] Place the feed inlet 6 on the bipolar plate conveying line, and the bipolar plate can enter the stamping platform 2 through the feed inlet 6. Start the driving motor 4. The driving motor 4 rotates to drive the driving wheel 5 at its output end to rotate, and transmits the power to the stamping assembly 8. By adopting the up-and-down two-way stamping technology of the upper stamping unit 8-1 and the lower stamping unit 8-2, the stamping accuracy can be significantly improved, ensuring that the size and shape of the bipolar plate more conform to the design requirements, thereby improving the product quality and consistency. And when the upper stamping unit 8-1 works, it will drive the material pushing assembly 9 to move, and can immediately push out the bipolar plate after stamping, avoiding affecting the stamping forming of the next bipolar plate. Without manual intervention, the production efficiency is greatly improved, the labor cost is reduced, and the potential safety hazards caused by manual operation are effectively avoided, making the entire stamping forming process more efficient, safe and reliable.

[0021] As Figures 2 - 5 shown, the upper stamping unit 8-1 includes a driven wheel 801, a rotating shaft 802, a first rotating gear 803, a second rotating gear 804, a transmission shaft 805, a swing plate 806, an eccentric wheel 807, a concave plate 808, an upper stamping rod 809 and an upper stamping plate 810. A protective baffle 13 and a rotating shaft 802 are installed on the upper part of the protective bottom plate 1. A driven wheel 801 is fixedly installed on one side of the rotating shaft 802 close to the driving motor 4. A first rotating gear 803 is fixedly installed at the other end of the rotating shaft 802. A transmission shaft 805 is rotatably installed on the upper part of the protective baffle 13. A second rotating gear 804 is fixedly installed on one side of the transmission shaft 805 close to the first rotating gear 803. An eccentric wheel 807 is installed in the middle of the transmission shaft 805. A swing plate 806 is sleeved on the eccentric wheel 807. A concave plate 808 is rotatably installed below the swing plate 806. An upper stamping rod 809 is fixedly installed below the concave plate 808. An upper stamping plate 810 is fixedly installed at the bottom of the upper stamping rod 809. The upper stamping plate 810 and the stamping hole 201 opened on the stamping platform 2 are located on the same central axis.

[0022] When the driving motor 4 is started, the driving wheel 5 rotates and transmits power to the driven wheel 801, and the driven wheel 801 drives the rotating gear 1 803 and the rotating shaft 802 to rotate. At the same time, the rotating gear 2 804 and the transmission shaft 805 move, and the transmission shaft 805 drives the eccentric wheel 807 and the rotating gear 2 804 to rotate. The movement of the eccentric wheel 807 drives the concave plate 808 to move up and down, and then drives the upper punch rod 809 and the upper punch plate 810 to reciprocate up and down, so as to perform punching processing on the bipolar plate on the punching platform 2.

[0023] like Figures 3 - 4 As shown, the lower punching unit 8-2 includes a cam 811, a movable circular plate 812, a movable rod 813, a fixed straight plate 814, a movable plate 815, a lower punching plate 816 and a lower punching rod 817; the cam 811 is fixedly installed on the side of the transmission shaft 805 away from the eccentric wheel 807, the movable rod 813 is inserted on the fixed connecting rod 10 and the fixed connecting rod 2 11, and a fixed block is fixedly installed above the movable rod 813, and a movable circular plate 812 is rotatably installed on the fixed block, and the movable circular plate 812 is rotatably installed with the cam The outer contour surface of the wheel 811 is in contact, and a cylindrical block is fixedly installed below the movable rod 813, and a movable plate 815 is rotatably installed on the cylindrical block. A lower punching rod 817 is rotatably installed on the other end of the movable plate 815, and a lower punching plate 816 is fixedly installed above the lower punching rod 817. The lower punching plate 816 and the upper punching plate 810 and the punching hole 201 are all located on the same central axis. A fixed straight plate 814 is rotatably installed in the middle of the movable plate 815, and the fixed straight plate 814 is fixedly installed below the protective bottom plate 1.

[0024] When the transmission shaft 805 rotates, the cam 811 is driven to rotate, and the cam 811 drives the movable circular plate 812 to rotate. When the raised part on the cam 811 contacts the movable circular plate 812, the movable circular plate 812 drives the second movable rod 813 to move downward, so that the movable plate 815 rotates around the fixed straight plate 814, and the lower punching rod 817 is pushed upward, and the lower punching plate 816 moves upward accordingly. At this time, the upper punching plate 810 and the lower punching plate 816 sandwich the bipolar plate to be processed for stamping. When the raised part of the cam 811 ends contacting the movable circular plate 812, the second movable rod 813 is reset, the lower punching rod 817 moves downward, and the lower punching plate 816 returns to its original position, and the stamping of the bipolar plate is completed.

[0025] like Figure 4As shown, the rotating gear 1 803 is meshed with the rotating gear 2 804, the driving wheel 5 and the driven wheel 801 are sleeved with a transmission belt, the moving circular plate 812 is in surface contact with the cam 811, the moving rod 2 813 is inserted through the fixed connecting rod 10 and the fixed connecting rod 2 11, and the upper punching rod 809 is inserted through the fixed short rod 2 907. The meshing of the rotating gear 1 803 and the rotating gear 2 804 can transmit the power of the driving motor 4 to the eccentric wheel 807 and the cam 811, the moving circular plate 812 can move up and down by using the cam 811, and the cooperation of the upper punching rod 809 and the moving rod 2 813 with the fixed connecting rod 10 and the fixed connecting rod 2 11 can complete the stable movement and reset of the upper punching rod 809 and the moving rod 2 813.

[0026] like Figure 2 and Figures 4 - 8 As shown, the pusher assembly 9 includes a moving groove 901, a second sliding block 902, a T-shaped circular plate 903, a moving circular rod 904, a moving double rod 905, a fixed short rod 1 906, a fixed short rod 2 907, a push plate 908, a pusher block 909, a spring 910, a supporting straight plate 911, a sliding groove 912 and a sliding block 1 913; A supporting straight plate 911 is provided on the upper part of one side of the protective bottom plate 1 close to the rotating gear 803, a sliding groove 912 is provided on the supporting straight plate 911, a sliding block 913 is slidably installed inside the sliding groove 912, a moving double rod 905 is fixedly installed on the sliding block 913, a moving round rod 904 is fixedly installed above the moving double rod 905, a T-shaped round plate 903 is fixedly installed on the end of the moving round rod 904 away from the moving double rod 905, and a sliding Block 2 902, the movable groove 901 is opened on the side of the rotating gear 2 804 close to the eccentric wheel 807, the sliding block 2 902 is slidably installed inside the movable groove 901, the middle and tail parts of the movable double rod 905 are fixedly installed with a fixed short rod 1 906 and a fixed short rod 2 907, the fixed short rod 1 906 is connected to the fixed connecting rod 10 through a spring 910, which can assist in resetting, a push plate 908 is fixedly installed on the fixed short rod 2 907, and a push block 909 is fixedly installed under the push plate 908.

[0027] When the second gear 804 rotates, it will drive the moving groove 901 to rotate, and the second slider 902 will slide within the moving groove 901. Due to the unique design of the moving groove 901, when the second slider 902 slides to a specific position, it will move, thereby driving the T-shaped circular plate 903 and the moving circular rod 904 to move, and synchronously driving the moving double rod 905 to move back and forth inside the first slider 913 within the sliding groove 912. When the moving double rod 905 moves forward, the push plate 908 drives the pushing block 909 to slide on the stamping platform 2, pushing out the processed bipolar plate from the processing platform. When the moving double rod 905 moves backward, the push plate 908 drives the pushing block 909 to move backward, leaving space for the bipolar plate to be stamped. Under the cooperation of the upper stamping plate 810 and the lower stamping plate 816, the spring 910 fixed to the first fixed short rod 906 and the second fixed connecting rod 11 can use its reset elastic force to assist the pushing block 909 in pushing out the bipolar plate.

[0028] As Figure 4 shown, the shape of the moving groove 901 is non-circular. It utilizes the second slider 902 to slide within the moving groove 901, thereby causing the T-shaped circular plate 903 to move back and forth. By using the irregular elliptical design of the moving groove 901, the second slider 902 can drive the moving circular plate 812 and the moving circular rod 904 to move back and forth, completing the pushing action of the bipolar plate. The pushed-out bipolar plate can enter the next production process along the inclined discharge port 12.

[0029] As Figures 9 - 10 shown, the nickel plating assembly 14 includes a vertical plate 1401, a liquid tank 1402, a first gear 1403, a second gear 1404, a runway groove 1405, a chain 1406, a triangular plate 1407, a first rod plate 1408, a second rod plate 1409, a transmission plate 1410, and a first sliding rod 1411; the output end of the discharge port 12 is provided with a first rod plate 1408, the output end of the first rod plate 1408 is provided with a vertical plate 1401, a liquid tank 1402 is fixedly installed below the vertical plate 1401, a first gear 1403 is rotatably installed above the vertical plate 1401, a second gear 1404 is rotatably installed below the vertical plate 1401, a runway groove 1405 is opened on the vertical plate 1401, and the runway groove 1405 surrounds the outside of the first gear 1403 and the second gear 1404. A chain 1406 is sleeved on the first gear 1403 and the second gear 1404. A triangular plate 1407 is fixedly installed at each of the two transmission nodes on the chain 1406. One side of the triangular plate 1407 away from the chain 1406 is penetrated and installed with a first sliding rod 1411. The end of the first sliding rod 1411 facing away from the vertical plate 1401 is installed with a transmission plate 1410, and the other end of the first sliding rod 1411 is slidably installed within the runway groove 1405. A second rod plate 1409 is inclinedly arranged on the side of the vertical plate 1401 away from the discharge port 12.

[0030] The nickel-plated assembly 14 of the present application is rotated by the gear 1403, and the power is transmitted to the gear 2 1404 by the chain 1406. When the bipolar plate slides from the discharge port 12 to the stick plate 1408, the chain 1406 drives the triangular plate 1407 and the transmission plate 1410 to run under the stick plate 1408, and the bipolar plate is lifted out of the plating solution by the gap between the transmission plate 1410 and the stick plate 1408, and the transmission plate 1410 is smoothly transported to the stick plate 2 1409 by the rotation of the chain 1406 and the sliding of the sliding rod 1411 for the next operation. Alkaline electrolytic cells usually use strong alkaline electrolytes (such as 30% potassium hydroxide solution), which are corrosive to bipolar plate materials. After long-term use, unprotected bipolar plates may suffer performance degradation due to corrosion, and even affect the overall life of the electrolytic cell. Nickel plating can form a dense metal nickel coating on the surface of the bipolar plate. This coating can effectively isolate the direct contact between the electrolyte and the bipolar plate substrate, thereby significantly improving the corrosion resistance of the bipolar plate.

[0031] The working principle of the present invention is as follows: the feed port 6 is placed on the bipolar plate conveyor line, and the bipolar plate can enter the stamping platform 2 through the feed port 6. When the drive motor 4 is started, the driving wheel 5 rotates to transmit power to the driven wheel 801, and the driven wheel 801 drives the rotating gear 1 803 and the rotating shaft 802 to rotate. At the same time, the rotating gear 2 804 and the transmission shaft 805 move, and the transmission shaft 805 drives the eccentric wheel 807 and the rotating gear 2 804 to rotate. The movement of the eccentric wheel 807 drives the concave plate 808 to move up and down, and then drives the upper punch rod 809 and the upper punch plate 810 to reciprocate up and down, and the bipolar plate on the stamping platform 2 is stamped. When the transmission shaft 805 rotates, the cam 811 is driven to rotate. At this time, the cam 811 drives the movable circular plate 812 to rotate. When the raised part on the cam 811 contacts the movable circular plate 812, the movable circular plate 812 drives the movable rod 813 to move downward, so that the movable plate 815 rotates around the fixed straight plate 814, and the lower punching rod 817 is lifted upward, and the lower punching plate 816 moves upward accordingly. At this time, the upper punching plate 810 and the lower punching plate 816 clamp the bipolar plate to be processed in the middle for stamping. When the raised part of the cam 811 ends the contact with the movable circular plate 812, the movable rod 813 is reset, the lower punching rod 817 moves downward, and the lower punching plate 816 returns to its original position, and the stamping of the bipolar plate is completed. By adopting the two-way stamping technology, the precision of stamping can be significantly improved, ensuring that the size and shape of the bipolar plate are more in line with the design requirements, thereby improving the quality and consistency of the product.

[0032] When the second gear 804 rotates, it will drive the moving groove 901 to rotate, and the second slider 902 will slide within the moving groove 901. Due to the unique design of the moving groove 901, the second slider 902 will move when it slides to a specific position, thereby driving the T-shaped circular plate 903 and the moving circular rod 904 to move, synchronously driving the moving double rod 905 to move back and forth inside the first slider 913 within the sliding groove 912. When the moving double rod 905 moves forward, the push plate 908 drives the pusher block 909 to slide on the stamping platform 2, pushing out the processed bipolar plate from the processing platform. When the moving double rod 905 moves backward, the push plate 908 drives the pusher block 909 to move backward, leaving space for the bipolar plate to be stamped. Under the cooperation of the upper stamping plate 810 and the lower stamping plate 816, the stamping action is carried out. The spring 910 fixed to the first fixed short rod 906 and the second fixed connecting rod 11 can use its reset elastic force to assist the pusher block 909 in pushing out the bipolar plate. This avoids affecting the stamping and forming of the next bipolar plate, eliminates the need for manual intervention, greatly improves production efficiency, reduces labor costs, and effectively avoids safety hazards caused by manual operation, making the entire stamping and forming process more efficient, safe, and reliable.

[0033] The nickel plating assembly 14 rotates through the first gear 1403, and transmits the power to the second gear 1404 using the chain 1406. When the bipolar plate slides from the discharge port 12 onto the first roller plate 1408, the chain 1406 drives the triangular plate 1407 and the transmission plate 1410 to move below the first roller plate 1408. The bipolar plate is lifted out of the plating solution using the gap between the staggered arrangement of the transmission plate 1410 and the first roller plate 1408, and the chain 1406 rotates and the first sliding rod 1411 slides to enable the transmission plate 1410 to smoothly transport the bipolar plate onto the second roller plate 1409 for the next operation. Alkaline electrolytic cells usually use strongly alkaline electrolytes, and this environment is corrosive to the bipolar plate material. After long-term use, the unprotected bipolar plate may experience performance degradation due to corrosion, which may even affect the overall lifespan of the electrolytic cell. Nickel plating treatment can form a dense metal nickel coating on the surface of the bipolar plate, and this coating can effectively isolate the direct contact between the electrolyte and the bipolar plate substrate, thereby significantly improving the corrosion resistance of the bipolar plate.

[0034] For those skilled in the art, it is obvious that the present invention is not limited to the details of the above exemplary embodiments, and without departing from the spirit or basic characteristics of the present invention, the present invention can be implemented in other specific forms. Therefore, from any perspective, the embodiments should be regarded as exemplary and non-limiting. The scope of the present invention is defined by the appended claims rather than the above description. Therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be encompassed within the present invention. Any reference signs in the claims should not be regarded as limiting the claimed rights.

Claims

1. A bipolar plate production device for a hydrogen production electrolytic cell, characterized in that: It includes a protective bottom plate and a stamping assembly, wherein a stamping platform is arranged in the middle of the protective bottom plate, the stamping assembly includes an upper stamping unit and a lower stamping unit, the lower stamping unit cooperates with the upper stamping unit, a pusher assembly is arranged on the upper stamping unit, and a moving groove and a moving double rod are arranged on the upper stamping unit; A protective baffle and a rotating shaft are installed on the upper part of the protective bottom plate, a driven wheel is fixedly installed on the side of the rotating shaft close to the driving motor, a rotating gear 1 is fixedly installed on the other end of the rotating shaft, a transmission shaft is rotatably installed on the upper part of the protective baffle, a rotating gear 2 is fixedly installed on the side of the transmission shaft close to the rotating gear 1, an eccentric wheel is installed in the middle part of the transmission shaft, a swing plate is sleeved on the eccentric wheel, a concave plate is rotatably installed below the swing plate, an upper punching rod is fixedly installed below the concave plate, an upper punching plate is fixedly installed on the bottom of the upper punching rod, and the upper punching plate and the punching hole opened on the punching platform are located on the same central axis; A cam is fixedly installed on the side of the transmission rod away from the eccentric wheel, and a moving rod 2 is inserted on the fixed connecting rod 1 and the fixed connecting rod 2, and a fixed block is fixedly installed above the moving rod 2, and a moving circular plate is rotatably installed on the fixed block, and the moving circular plate contacts the outer contour surface of the cam, and a cylindrical block is fixedly installed below the moving rod 2, and a movable plate is rotatably installed on the cylindrical block, and a lower punching rod is rotatably installed on the other end of the movable plate, and a lower punching plate is fixedly installed above the lower punching rod, and the lower punching plate, the upper punching plate and the punching hole are all located on the same central axis, and a fixed straight plate is rotatably installed in the middle of the movable plate, and the fixed straight plate is fixedly installed below the protective bottom plate.

2. The bipolar plate production equipment for a hydrogen production electrolytic cell according to claim 1, characterized in that: The rotating gear 1 is meshed with the rotating gear 2, a transmission belt is sleeved on the driving wheel and the driven wheel, the moving circular plate contacts the cam surface, the moving rod 2 is inserted through the fixed connecting rod 1 and the fixed connecting rod 2, and the upper punching rod is inserted through the fixed short rod 2.

3. The production equipment for a bipolar plate used in a hydrogen production electrolytic cell according to claim 2, characterized in that: The pusher assembly comprises a moving groove, a second sliding block, a T-shaped circular plate, a moving circular rod, a moving double rod, a first fixed short rod, a second fixed short rod, a pusher plate, a pusher block, a spring, a supporting straight plate, a sliding groove and a first sliding block.

4. The production equipment for a bipolar plate used in a hydrogen production electrolytic cell according to claim 3, characterized in that: The transmission gear of the present invention is a gear shifting device, and the gear shifting device is a gear shifting device, and the gear shifting device is a gear shifting device. The gear shifting device is a gear shifting device, and the gear shifting device is a gear shifting device.

5. The bipolar plate production equipment for a hydrogen production electrolytic cell according to claim 4, characterized in that: The upper stamping unit includes a driven wheel, a rotating shaft, a first rotating gear, a second rotating gear, a transmission shaft, a swing plate, an eccentric wheel, a concave plate, an upper stamping rod, and an upper stamping plate; The lower stamping unit includes a cam, a moving circular plate, a second moving rod, a fixed straight plate, a movable plate, a lower stamping plate, and a lower stamping rod.

6. The production equipment for bipolar plates used in a hydrogen production electrolytic cell according to claim 5, characterized in that: The pusher block is slidably engaged with the stamping platform, and the size of the pusher block is larger than the stamping hole; The shape of the moving groove is non-circular. It uses the second sliding block to slide in the moving groove, so that the T-shaped circular plate moves back and forth.

7. The production equipment for bipolar plates used in hydrogen production electrolytic cells according to claim 6, characterized in that: Above the stamping platform, a first fixed connecting rod is installed. Below the stamping platform, a second fixed connecting rod is installed. The protective bottom plate is in a "U" shape as a whole. The first fixed connecting rod and the second fixed connecting rod are connected to both sides of the protective bottom plate; on one side of the protective bottom plate, a support plate is installed. A drive motor is fixedly installed on the support plate. The output end of the drive motor is installed with a driving wheel; on the side of the protective bottom plate away from the support plate, a feed inlet is provided. A feed baffle is installed on the feed inlet. The stamping assembly is arranged below the feed baffle.

8. The production equipment for a bipolar plate used in a hydrogen production electrolytic cell according to claim 7, characterized in that: The output end of the stamping platform is provided with a discharge port, and the discharge port is inclined.

9. The production equipment for bipolar plates of a hydrogen production electrolytic cell according to claim 8, characterized in that: The nickel plating assembly includes a vertical plate, a liquid tank, a first gear, a second gear, a runway groove, a chain, a triangular plate, a first rod plate, a second rod plate, a transmission plate, and a first sliding rod; At the output end of the discharge port, a first rod plate is provided. At the output end of the first rod plate, a vertical plate is provided. Below the vertical plate, a liquid tank is fixedly installed. Above the vertical plate, a first gear is rotatably installed. Below the vertical plate, a second gear is rotatably installed. A runway groove is provided on the vertical plate, and the runway groove surrounds the outside of the first gear and the second gear. A chain is sleeved on the first gear and the second gear. On both sides of the chain, a triangular plate is fixedly installed at each transmission node. One side of the triangular plate away from the chain is installed with a first sliding rod in a penetrating manner. The end of the first sliding rod away from the vertical plate is installed with a transmission plate. The other end of the first sliding rod is slidably installed in the runway groove. On the side of the vertical plate away from the discharge port, a second rod plate is inclined.

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