Multifunctional composite transfer printing machine for hydrogen fuel proton exchange membrane

Abstract

The invention provides a hydrogen fuel proton exchange membrane multifunctional composite transfer printing machine which comprises a cathode membrane unwinding mechanism, a proton exchange membrane unwinding mechanism, an anode membrane unwinding mechanism, a transfer printing roller mechanism, a protective membrane stripping and winding mechanism, an upper PTTF membrane winding mechanism, a hydrogen fuel proton exchange membrane winding mechanism, a lower PTTF membrane winding mechanism and a protective membrane unwinding mechanism, a cathode membrane, a proton exchange membrane and an anode membrane are unwound through the cathode membrane unwinding mechanism, the proton exchange membrane unwinding mechanism and the anode membrane unwinding mechanism respectively and then input into the transfer printing roller mechanism for composite transfer printing, and a cathode catalyst coating and an anode catalyst coating are transferred to the proton exchange membrane respectively. And the hydrogen fuel proton exchange membrane is wound by a hydrogen fuel proton exchange membrane winding mechanism. The multi-functional and multi-path composite transfer printing of the proton exchange membrane is realized, the process characteristics of different formulas are better matched, the diversity matching of the proton exchange membrane is met, the continuous production is realized, and the production efficiency is high.

Description

Technical Field

[0001] This invention relates to the field of battery transfer production equipment technology, specifically to a multifunctional composite transfer machine for hydrogen fuel proton exchange membranes. Background Technology

[0002] Hydrogen fuel cell technology is the ideal carrier of the ultimate clean energy source of the future. The proton exchange membrane (PEM membrane) for hydrogen fuel cells consists of a proton exchange membrane, an anode catalyst coating, and a cathode catalyst coating. Traditional manufacturing processes primarily involve coating. However, due to the swelling characteristics of the proton exchange membrane, the lack of a protective film during the second coating process makes it particularly prone to swelling, wrinkling, and damage.

[0003] The improved manufacturing process involves coating the anode catalyst and cathode catalyst onto a polytetrafluoroethylene (PTFE) film, and then transferring the coating onto the proton exchange membrane via hot pressing. The coating is then peeled off from the PTFE film and transferred onto both sides of the proton exchange membrane, forming a complete hydrogen fuel proton exchange membrane.

[0004] Currently available roll-to-roll heat transfer equipment, depending on the manufacturer's specific product requirements, can perform continuous or intermittent heat transfer of the catalyst coating on both sides of the roll-to-roll base film, or intermittent transfer of the catalyst coating on one side only. However, intermittent transfer requires the continuous opening and closing of the heat transfer rollers, resulting in slow transfer speed and low production efficiency. Alternatively, intermittent transfer can be achieved by using a continuous catalyst coating on one side only, but in this method, the intermittent catalyst coating is applied through intermittent coating, which is also achieved through the opening and closing of the coating die, resulting in similarly low production efficiency. Summary of the Invention

[0005] To address the shortcomings of existing technologies, this invention proposes a multifunctional composite transfer machine for hydrogen fuel proton exchange membranes. This machine enables multifunctional and multi-path composite transfer of proton exchange membranes, better matching the process characteristics of different formulations, meeting the diverse needs of proton exchange membranes, and achieving continuous production, thereby improving production efficiency.

[0006] To achieve the above technical solution, this invention provides a multifunctional composite transfer machine for hydrogen fuel proton exchange membranes, comprising: a cathode membrane unwinding mechanism, a proton exchange membrane unwinding mechanism, an anode membrane unwinding mechanism, a transfer roller mechanism, a protective film peeling and winding mechanism, an upper PTTF membrane winding mechanism, a hydrogen fuel proton exchange membrane winding mechanism, a lower PTTF membrane winding mechanism, and a protective film unwinding mechanism; the cathode membrane unwinding mechanism, the proton exchange membrane unwinding mechanism, and the anode membrane unwinding mechanism are arranged in parallel; the transfer roller mechanism is installed behind the cathode membrane unwinding mechanism, the proton exchange membrane unwinding mechanism, and the anode membrane unwinding mechanism; the protective film peeling and winding mechanism is installed in front of the transfer roller mechanism; the upper PTTF membrane winding mechanism, the hydrogen fuel proton exchange membrane winding mechanism, and the lower PTTF membrane winding mechanism are arranged in parallel behind the transfer roller mechanism; and the protective film unwinding mechanism is installed behind the hydrogen fuel proton exchange membrane winding mechanism. The cathode membrane, proton exchange membrane, and anode membrane are respectively unwound via the cathode membrane. After unwinding by the proton exchange membrane (PEM) unwinding mechanism and the anode membrane unwinding mechanism, the membranes are fed into the transfer roller mechanism for composite transfer. The cathode catalyst coating on the cathode membrane and the anode catalyst coating on the anode membrane are transferred onto the PEM, and then wound up by the hydrogen fuel PEM rewinding mechanism. The transferred cathode membrane is wound up by the upper PTTF membrane rewinding mechanism, and the transferred anode membrane is wound up by the lower PTTF membrane rewinding mechanism. Before composite transfer, the PEM body is separated from the proton protective membrane by a peeling knife. The PEM body enters the transfer roller mechanism for composite transfer with the cathode and anode membranes. The protective membrane peeling and rewinding mechanism is used to rewind the peeled proton protective membrane. The protective membrane unwinding mechanism unwinds the surface protective membrane onto the surface of the hydrogen fuel PEM after composite transfer and then rewinds it together with the hydrogen fuel PEM rewinding mechanism.

[0007] Preferably, the transfer roller mechanism includes a transfer frame, on which an upper transfer roller and a lower transfer roller are mounted side-by-side and closely fitted. The upper transfer roller is fixedly mounted on the transfer frame, and the lower transfer roller is mounted on a ball bearing guide rail on the transfer frame. A weighing sensor mounting base is mounted below the lower transfer roller, and a weighing sensor is mounted on the weighing sensor mounting base. The weighing sensor is in contact with the lower transfer roller. The weighing sensor mounting base is mounted on a linear guide rail on the transfer frame, and a ball screw jack is mounted at the bottom of the weighing sensor mounting base. A ball screw servo motor is mounted at the bottom of the ball screw jack.

[0008] Preferably, the cathode film unwinding mechanism includes a cathode film unwinding roller, a first guide roller is installed behind the cathode film unwinding roller, a first CCD photoelectric sensor and a first CCD photoelectric sensor positioning servo motor are installed below the first guide roller, a first tension detection roller is installed behind the first tension detection roller, a first tension adjustment platform is installed behind the first tension adjustment platform, a second guide roller and a third guide roller are installed behind the third guide roller, a pressure roller device composed of a small pressure roller and a pressure roller support roller is installed behind the pressure roller device, a peeling roller is installed behind the peeling roller, a peeling knife is installed below the peeling roller, and a second transfer introduction roller is installed behind the peeling roller, the second transfer introduction roller being located obliquely above the upper transfer roller and the lower transfer roller.

[0009] Preferably, the proton exchange membrane unwinding mechanism includes a proton exchange membrane unwinding roller, a fourth guide roller is installed behind the proton exchange membrane unwinding roller, a second CCD photoelectric sensor and a second CCD photoelectric sensor positioning servo motor are installed above the fourth guide roller, a second tension detection roller is installed behind the fourth guide roller, a second tension adjustment platform is installed behind the second tension detection roller, and a fifth guide roller is installed behind the second tension adjustment platform. The fifth guide roller is located in front of and below the pressure roller device composed of a small pressure roller and a pressure roller support roller.

[0010] Preferably, the anode film unwinding mechanism includes an anode film unwinding roller, a sixth guide roller is installed behind the anode film unwinding roller, a third CCD photoelectric sensor and a third CCD photoelectric sensor positioning servo motor are installed above the sixth guide roller, a third tension detection roller is installed behind the sixth guide roller, a third tension adjustment platform is installed behind the third tension detection roller, a correction roller is installed behind the third tension adjustment platform, a seventh guide roller is installed behind the correction roller, and a first transfer introduction roller is installed behind the seventh guide roller. The first transfer introduction roller is located obliquely below the upper transfer roller and the lower transfer roller.

[0011] Preferably, the protective film peeling and winding mechanism includes a protective film peeling and winding roller, which is installed below the peeling roller, and a ninth guide roller is installed between the protective film peeling and winding roller and the peeling roller.

[0012] Preferably, the upper PTTF film winding mechanism includes an upper PTTF film winding roller, a thirteenth guide roller installed in front of the upper PTTF film winding roller, a fourth tension detection roller installed in front of the thirteenth guide roller, a fourth tension adjustment platform installed in front of the fourth tension detection roller, a twelfth guide roller installed in front of the fourth tension adjustment platform, a traction device consisting of a traction pressure roller and a traction roller installed in front of the twelfth guide roller, an eleventh guide roller installed in front of the traction device, a tenth guide roller installed in front of the eleventh guide roller, and a transfer lead-out roller installed in front of the tenth guide roller. The transfer lead-out roller is located behind the upper transfer roller and the lower transfer roller.

[0013] Preferably, the hydrogen fuel proton exchange membrane winding mechanism includes a hydrogen fuel proton exchange membrane winding roller, an electro-optical detection roller is installed in front of the hydrogen fuel proton exchange membrane winding roller, a fourth CCD photoelectric sensor is installed directly opposite the electro-optical detection roller, a fifth tension detection roller is installed in front of the electro-optical detection roller, a fifth tension adjustment platform is installed in front of the fifth tension detection roller, a fifteenth guide roller is installed in front of the fifth tension adjustment platform, and a fourteenth guide roller is installed in front of the fifteenth guide roller. The fourteenth guide roller is located behind the traction device composed of the traction pressure roller and the traction roller.

[0014] Preferably, the lower PTTF film winding mechanism includes a lower PTTF film winding roller, a nineteenth guide roller installed in front of the lower PTTF film winding roller, a sixth tension detection roller installed in front of the nineteenth guide roller, a sixth tension adjustment platform installed in front of the sixth tension detection roller, an eighteenth guide roller installed in front of the sixth tension adjustment platform, and a seventeenth guide roller installed in front of the eighteenth guide roller. The seventeenth guide roller is located below and behind the traction device composed of the traction pressure roller and the traction roller.

[0015] Preferably, the protective film unwinding mechanism includes a protective film unwinding roller, and a sixteenth guide roller is installed between the protective film unwinding roller and the hydrogen fuel proton exchange membrane take-up roller.

[0016] The beneficial effects of the hydrogen fuel proton exchange membrane multifunctional composite transfer machine provided by the invention are as follows:

[0017] (1) This multi-functional composite transfer machine for hydrogen fuel proton exchange membranes realizes multiple composite paths for anode membranes, cathode membranes, and proton exchange membranes, exhibiting strong process adaptability. This invention can achieve four composite transfer paths: 1. The proton exchange membrane is first composited with the cathode membrane. After removing the protective film of the proton exchange membrane, it is composited with the anode membrane and enters the transfer rollers for thermal composite transfer. 2. The proton exchange membrane has its protective film removed before being composited with the anode membrane. Then, it enters the transfer rollers with the cathode membrane for thermal composite transfer. 3. The proton exchange membrane has its protective film removed before being thermally composited with the anode and cathode membranes at the hot-rolling transfer rollers. 4. The proton exchange membrane has its protective film removed before being pre-composite with the anode and cathode membranes before entering the transfer rollers, and then enters the hot-rolling transfer rollers for thermal composite transfer. This improves the adaptability of the products in actual production.

[0018] (2) This invention automatically aligns the anode membrane, proton exchange membrane, and cathode membrane by detecting the coating edges of the materials using a correction CCD photoelectric sensor. This ensures accurate positioning of the anode catalyst coating and cathode catalyst coating on the proton exchange membrane during composite transfer. The correction CCD photoelectric sensor is positioned by a servo motor. It has an automatic positioning function and can adapt to coatings of different widths. After the width value is calibrated on the touch screen according to the coating width, the servo motor calibrates the current position of the photoelectric sensor. When changing product models, the coating width value of the new product is input, and the photoelectric sensor can automatically position itself under the drive of the servo motor. This avoids repeated positioning and debugging, and reduces material waste during the debugging process.

[0019] (3) In this invention, a CCD laser sensor is used to detect the roll diameter of the substrate during winding and unwinding. The winding and unwinding drive servo motors can automatically match the rotation speed according to the roll diameter. This reduces substrate vibration. At the same time, the tension signal of the material is detected by a tension detection roller. The tension signal is further used by the PLC to perform PID adjustment on the speed of the servo motor, which improves the tension control accuracy and speed closed-loop feedback. This ensures that there is no stretching deformation on the surface of the composite transfer material, prevents substrate vibration, and improves product quality.

[0020] (4) In this invention, a pair of traction roller mechanisms are provided after the hot-rolled transfer roller. The traction roller mechanism consists of a traction roller, a traction pressure roller, and a drive servo motor. Between the hot-rolled transfer roller and the traction roller mechanism, a tension roller mechanism and an encoding roller mechanism are provided. The tension roller mechanism controls the substrate between the hot-rolled transfer roller and the traction roller mechanism, and ensures synchronous rotation of the two mechanisms by adjusting the speed of the servo motor through a closed loop, thereby achieving synchronous speed control. The encoding roller consists of an aluminum pass roller and an encoder. It has an automatic length recording function. Thus, in the gap transfer process, the PEM film has a uniform coating length and gap length, improving product consistency.

[0021] (5) In this invention, when the finished hydrogen fuel proton exchange membrane (PEM membrane) is wound up, a protective film unwinding mechanism is provided. The protective film is applied to the surface of the finished PEM membrane and the surface is laminated on the winding shaft. The protective film is attached to the surface of the finished membrane. This ensures that the finished product has less exposure time to air in subsequent processes, and prevents water vapor and dust in the air from having an adverse effect on the finished PEM membrane.

[0022] Further improve product quality. Attached Figure Description

[0023] Figure 1 This is a flowchart illustrating the structure of the present invention.

[0024] Figure 2 This is a flowchart of the first half of the structure of this invention.

[0025] Figure 3 This is a flowchart of the structure of the latter half of this invention.

[0026] In the diagram: 1. Cathode membrane unwinding roller; 2. First guide roller; 3. First tension detection roller; 4. First tension adjustment platform; 5. Second guide roller; 6. Third guide roller; 7. Small pressure roller; 8. Pressure roller support roller; 9. Peeling knife; 10. Peeling roller; 11. First CCD photocell; 12. First CCD photocell positioning servo motor; 13. Proton exchange membrane unwinding roller; 14. Fourth guide roller; 15. Second CCD photocell; 16. Second CCD photocell positioning servo motor; 17. Second tension detection roller; 18. Second tension adjustment platform; 19. Fifth guide roller; 20. Anode film unwinding roller; 21. Sixth guide roller; 22. Third CCD photoelectric sensor; 23. Third CCD photoelectric sensor positioning servo motor; 24. Third tension detection roller; 25. Third tension adjustment platform; 26. Correction roller; 27. Seventh guide roller; 28. Protective film peeling and winding roller; 29. ​​Eighth guide roller; 30. Ninth guide roller; 31. First transfer introduction roller; 32. Second transfer introduction roller; 33. Upper transfer roller; 34. Transfer roller. 35. Lead-out roller; 36. Lower transfer roller; 37. Ball bearing guide; 38. Weighing sensor; 39. Weighing sensor mounting base; 40. Linear guide; 41. Ball screw jack; 42. Screw servo motor; 43. Transfer frame; 44. Tenth guide roller; 45. Eleventh guide roller; 46. Traction roller; 47. Twelfth guide roller; 48. Fourth tension adjustment platform; 49. Fourth tension detection roller; 50. Thirteenth guide roller; 51. Upper PTTF film take-up roller; 52. Traction pressure roller; 53. Fourteenth guide roller; 54. Fifteenth guide roller; 55. Fifth tension adjustment platform; 56. Fifth tension detection roller; 57. Photoelectric sensor detection roller; 58. Fourth CCD photoelectric sensor; 59. Hydrogen fuel proton exchange membrane take-up roller; 60. Sixteenth guide roller; 61. Protective film unwinding roller; 62. Seventeenth guide roller; 63. Eighteenth guide roller; 64. Sixth tension adjustment platform; 65. Sixth tension detection roller; 66. Nineteenth guide roller; 67. Lower PTTF membrane take-up roller; 68. Roll diameter detection laser sensor. Detailed Implementation

[0027] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. All other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present invention.

[0028] Example: A multifunctional composite transfer machine for hydrogen fuel proton exchange membranes.

[0029] Before transfer printing, an anodic catalyst coating is applied to the PTFE film on a coating machine to form an anodic catalyst film (referred to as an anodic film); a cathodic catalyst coating is then applied to the PTFE film on the same coating machine to form an anodic catalyst film (referred to as a cathodic film). The proton exchange membrane and the protective film are bonded together. Before transfer printing, a film-peeling process separates the proton exchange membrane from the protective film. Based on the above, refer to... Figures 1 to 3 As shown, this invention provides a multifunctional composite transfer machine for hydrogen fuel proton exchange membranes, comprising: a cathode membrane unwinding mechanism, a proton exchange membrane unwinding mechanism, an anode membrane unwinding mechanism, a transfer roller mechanism, a protective film peeling and winding mechanism, an upper PTTF membrane winding mechanism, a hydrogen fuel proton exchange membrane winding mechanism, a lower PTTF membrane winding mechanism, and a protective film unwinding mechanism; the cathode membrane unwinding mechanism, the proton exchange membrane unwinding mechanism, and the anode membrane unwinding mechanism are arranged in parallel; the transfer roller mechanism is installed behind the cathode membrane unwinding mechanism, the proton exchange membrane unwinding mechanism, and the anode membrane unwinding mechanism; the protective film peeling and winding mechanism is installed in front of the transfer roller mechanism; the upper PTTF membrane winding mechanism, the hydrogen fuel proton exchange membrane winding mechanism, and the lower PTTF membrane winding mechanism are arranged in parallel behind the transfer roller mechanism; and the protective film unwinding mechanism is installed behind the hydrogen fuel proton exchange membrane winding mechanism. The cathode membrane, the proton exchange membrane, and the anode membrane are respectively connected via the cathode membrane unwinding mechanism, the proton exchange membrane unwinding mechanism, the upper PTTF membrane unwinding mechanism, the lower PTTF membrane winding mechanism, and the lower PTTF membrane winding mechanism. After unwinding by the proton exchange membrane unwinding mechanism and the anode membrane unwinding mechanism, the membranes are fed into the transfer roller mechanism for composite transfer. The cathode catalyst coating on the cathode membrane and the anode catalyst coating on the anode membrane are transferred onto the proton exchange membrane, respectively. The membranes are then wound up by the hydrogen fuel proton exchange membrane winding mechanism. The transferred cathode membrane is wound up by the upper PTTF membrane winding mechanism, and the transferred anode membrane is wound up by the lower PTTF membrane winding mechanism. Before composite transfer, the proton exchange membrane body is separated from the proton protective membrane by a peeling knife. The proton exchange membrane body enters the transfer roller mechanism for composite transfer with the cathode and anode membranes. The protective membrane peeling and winding mechanism is used to wind up the peeled proton protective membrane. The protective membrane unwinding mechanism unwinds the surface protective membrane onto the surface of the hydrogen fuel proton exchange membrane after composite transfer and winds it up together with the hydrogen fuel proton exchange membrane winding mechanism.

[0030] Reference Figure 1 and Figure 2As shown, the transfer roller mechanism includes a transfer frame 42, on which an upper transfer roller 33 and a lower transfer roller 35 are mounted side-by-side and closely attached. The upper transfer roller 33 is fixedly mounted on the transfer frame 42, and the lower transfer roller 35 is mounted on a ball bearing guide rail 36 mounted on the transfer frame 42. A weighing sensor mounting base 38 is mounted below the lower transfer roller 35, and a weighing sensor 37 is mounted on the weighing sensor mounting base 38. The weighing sensor 37 is in contact with the lower transfer roller 35. The weighing sensor mounting base 38 is mounted on a linear guide rail 39 mounted on the transfer frame 42. A ball screw jack 40 is mounted at the bottom of the weighing sensor mounting base 38, and a screw servo motor 41 is mounted at the bottom of the ball screw jack 40. In actual operation, the top of the ball screw of the ball screw jack 40 is connected to the load cell mounting base 38. When the ball screw servo motor 41 drives the ball screw jack 40 to move up and down, the ball screw jack 40 will drive the load cell mounting base 38 to move, which in turn drives the lower transfer roller 35 to move on the ball guide rail 36. The linear guide rail 39 prevents the ball screw jack 40 from rotating, thus avoiding lifting errors. The lower transfer roller 35, together with the bearing housing and bearing, forms a movable roller assembly. A ball guide block is installed on the side of the bearing housing, and the ball guide block is positioned with the inner frame of the wall panel, forming a planar constraint mechanism. Since both the upper transfer roller 33 and the lower transfer roller 35 are electromagnetically heated steel rollers, the roller surface temperature can be precisely controlled, and the temperature within the effective area of ​​the roller surface can reach ±1℃. The ball screw servo motor 41 drives the ball screw jack 40 to move up and down, while the load cell 37 detects the pressure of the lower transfer roller 35, precisely controlling the transfer pressure. This dual closed-loop control of the position control of the ball screw servo motor 41 and the pressure control of the load cell 37 precisely improves the transfer quality and effectively enhances the yield of the finished product in the hydrogen fuel cell proton exchange membrane transfer process.

[0031] Reference Figure 1 and Figure 2As shown, the cathode film unwinding mechanism includes a cathode film unwinding roller 1. A first guide roller 2 is installed behind the cathode film unwinding roller 1. A first CCD photoelectric sensor 11 and a first CCD photoelectric sensor positioning servo motor 12 are installed below the first guide roller 2. A first tension detection roller 3 is installed behind the first tension detection roller 3. A first tension adjustment platform 4 is installed behind the first tension adjustment platform 4. A second guide roller 5 and a third guide roller 6 are installed behind the first tension adjustment platform 4. A pressure roller device composed of a small pressure roller 7 and a pressure roller support roller 8 is installed behind the third guide roller 6. A peeling roller 10 is installed behind the pressure roller device. A peeling knife 9 is installed below the peeling roller 10. A second transfer introduction roller 32 is installed behind the peeling roller 10. The second transfer introduction roller 32 is located obliquely above the upper transfer roller 33 and the lower transfer roller 35. In actual operation, the cathode membrane unwinding roller 1 unwinds the cathode membrane, which is then conveyed to the first tension detection roller 3 via the first guide roller 2 for tension detection. The first CCD photoelectric sensor 11 automatically locates the edge, achieving automatic positioning of the cathode catalyst coating. When the material process width changes, the position of the CCD photoelectric sensor can be automatically adjusted to reduce debugging losses. After detection by the first tension detection roller 3, the tension of the unwound cathode membrane can be adjusted via the first tension adjustment platform 4. Then, the pressure roller device consisting of the small pressure roller 7 and the pressure roller support roller 8 is introduced through the second guide roller 5 and the third guide roller 6 to pre-press the proton exchange membrane. Then, the protective film on the surface of the proton exchange membrane is peeled off by the peeling knife 9. Finally, the cathode membrane, proton exchange membrane and anode membrane are compositely transferred by the pressure area between the upper transfer roller 33 and the lower transfer roller 35 through the second transfer introduction roller 32.

[0032] Reference Figure 1 and Figure 2 As shown, the proton exchange membrane unwinding mechanism includes a proton exchange membrane unwinding roller 13. A fourth guide roller 14 is installed behind the proton exchange membrane unwinding roller 13. A second CCD photoelectric sensor 15 and a second CCD photoelectric sensor positioning servo motor 16 are installed above the fourth guide roller 14. A second tension detection roller 17 is installed behind the fourth guide roller 14. A second tension adjustment platform 18 is installed behind the second tension detection roller 17. A fifth guide roller 19 is installed behind the second tension adjustment platform 18. The fifth guide roller 19 is located in front of and below the pressure roller device composed of a small pressure roller 7 and a pressure roller support roller 8. In actual operation, the proton exchange membrane unwinding roller 13 unwinds the proton exchange membrane, and then it is conveyed to the second tension detection roller 17 for tension detection through the fourth guide roller 14. The second CCD photoelectric eye 15 automatically locates the edge to achieve automatic positioning of the proton exchange membrane. After detection by the second tension detection roller 17, the tension of the unwound proton exchange membrane can be adjusted through the second tension adjustment platform 18. Then, it is introduced into the pressure roller device composed of the small pressure roller 7 and the pressure roller support roller 8 through the fifth guide roller 19 to pre-press with the cathode membrane.

[0033] Reference Figure 1 and Figure 2 As shown, the anode film unwinding mechanism includes an anode film unwinding roller 20. A sixth guide roller 21 is installed behind the anode film unwinding roller 20. A third CCD photoelectric sensor 22 and a third CCD photoelectric sensor positioning servo motor 23 are installed above the sixth guide roller 21. A third tension detection roller 24 is installed behind the sixth guide roller 21. A third tension adjustment platform 25 is installed behind the third tension detection roller 24. A correction roller 26 is installed behind the third tension adjustment platform 25. A seventh guide roller 27 is installed behind the correction roller 26. A first transfer introduction roller 31 is installed behind the seventh guide roller 27. The first transfer introduction roller 31 is located obliquely below the upper transfer roller 33 and the lower transfer roller 35. In actual operation, the anode membrane unwinding roller 20 unwinds the anode membrane, which is then conveyed to the third tension detection roller 24 via the sixth guide roller 21 for tension detection. The third CCD photoelectric sensor 22 automatically locates the edge, achieving automatic positioning of the anode catalyst coating. When the material process width changes, the position of the third CCD photoelectric sensor 22 can be automatically adjusted to reduce debugging losses. After detection by the third tension detection roller 24, the tension of the unwound anode membrane can be adjusted via the third tension adjustment platform 25. Then, it is corrected by the correction roller 26, and then introduced into the pressure zone between the upper transfer roller 33 and the lower transfer roller 35 via the seventh guide roller 27 and the first transfer introduction roller 31 to perform composite transfer of the cathode membrane, proton exchange membrane and anode membrane.

[0034] Reference Figure 1 and Figure 2 As shown, the protective film peeling and winding mechanism includes a protective film peeling and winding roller 28, which is installed below the peeling roller 10. An eighth guide roller 29 and a ninth guide roller 30 are installed between the protective film peeling and winding roller 28 and the peeling roller 10. In actual operation, when the protective film at the bottom of the proton exchange membrane passes through the peeling roller 10, the protective film is separated from the surface of the proton exchange membrane by the peeling knife 9, and then introduced into the protective film peeling and winding roller 28 for winding through the eighth guide roller 29 and the ninth guide roller 30.

[0035] Reference Figure 1 and Figure 3As shown, the upper PTTF film winding mechanism includes an upper PTTF film winding roller 50. A thirteenth guide roller 49 is installed in front of the upper PTTF film winding roller 50. A fourth tension detection roller 48 is installed in front of the thirteenth guide roller 49. A fourth tension adjustment platform 47 is installed in front of the fourth tension detection roller 48. A twelfth guide roller 46 is installed in front of the fourth tension adjustment platform 47. A traction device consisting of a traction pressure roller 51 and a traction roller 45 is installed in front of the twelfth guide roller 46. An eleventh guide roller 44 is installed in front of the traction device. A tenth guide roller 43 is installed in front of the eleventh guide roller 44. A transfer lead-out roller 34 is installed in front of the tenth transfer roller 43. The transfer lead-out roller 34 is located behind the upper transfer roller 33 and the lower transfer roller 35. In actual operation, the traction device consisting of traction pressure roller 51 and traction roller 45 provides traction force to pull the upper PTTF film, hydrogen fuel proton exchange membrane and lower PTTF film after composite transfer out of the transfer roller mechanism. Then, the upper PTTF film is guided by the twelfth guide roller 46 into the fourth tension adjustment platform 47 for tension adjustment. After tension detection by the fourth tension detection roller 48, it is guided by the thirteenth guide roller 49 into the upper PTTF film take-up roller 50 for winding.

[0036] Reference Figure 1 and Figure 3 As shown, the hydrogen fuel proton exchange membrane winding mechanism includes a hydrogen fuel proton exchange membrane winding roller 58. A photoelectric sensor roller 56 is installed in front of the hydrogen fuel proton exchange membrane winding roller 58. A fourth CCD photoelectric sensor 57 is installed directly opposite the photoelectric sensor roller 56. A fifth tension sensor roller 55 is installed in front of the photoelectric sensor roller 56. A fifth tension adjustment platform 54 is installed in front of the fifth tension adjustment platform 54. A fifteenth guide roller 53 is installed in front of the fifth tension adjustment platform 54. A fourteenth guide roller 52 is installed in front of the fifteenth guide roller 53. The fourteenth guide roller 52 is located behind the traction device composed of the traction pressure roller 51 and the traction roller 45. In actual operation, the hydrogen fuel proton exchange membrane, after being composite-transferred by the transfer roller mechanism, is guided by the fourteenth guide roller 52 and the fifteenth guide roller 53 to the fifth tension adjustment platform 54 for tension adjustment under the traction of the traction device composed of the traction pressure roller 51 and the traction roller 45. Then, the tension is checked by the fifth tension detection roller to see if it is qualified. Next, the product is inspected by the fourth CCD photoelectric sensor 57 at the photoelectric sensor detection roller 56. Finally, it is wound up by the hydrogen fuel proton exchange membrane winding roller 58.

[0037] Reference Figure 1 and Figure 3As shown, the lower PTTF film winding mechanism includes a lower PTTF film winding roller 66, a nineteenth guide roller 65 installed in front of the lower PTTF film winding roller 66, a sixth tension detection roller 64 installed in front of the nineteenth guide roller 65, a sixth tension adjustment platform 63 installed in front of the sixth tension detection roller 64, an eighteenth guide roller 62 installed in front of the sixth tension adjustment platform 63, and a seventeenth guide roller 61 installed in front of the eighteenth guide roller 62. The seventeenth guide roller 61 is located below and behind the traction device composed of the traction pressure roller 51 and the traction roller 45. In actual operation, the traction device consisting of traction pressure roller 51 and traction roller 45 provides traction force to pull the upper PTTF film, hydrogen fuel proton exchange membrane and lower PTTF film after composite transfer out of the transfer roller mechanism. Then, the lower PTTF film is guided by the seventeenth guide roller 61 and the eighteenth guide roller 62 into the sixth tension adjustment platform 63 for tension adjustment. After tension detection by the sixth tension detection roller 64, it is guided by the nineteenth guide roller 65 into the lower PTTF film take-up roller 66 for winding.

[0038] Reference Figure 1 and Figure 3 As shown, the protective film unwinding mechanism includes a protective film unwinding roller 60, and a sixteenth guide roller 59 is installed between the protective film unwinding roller 60 and the hydrogen fuel proton exchange membrane take-up roller 58. In actual operation, the protective film unwinding roller 60 unwinds the protective film that needs to be adhered to the surface of the hydrogen fuel proton exchange membrane, and guides it into the hydrogen fuel proton exchange membrane take-up roller 58 through the sixteenth guide roller 59, where it adheres to the surface of the hydrogen fuel proton exchange membrane and is wound up together.

[0039] Reference Figure 1 As shown, the cathode membrane unwinding roller 1, proton exchange membrane unwinding roller 13, anode membrane unwinding roller 20, protective film peeling and winding roller 28, upper PTTF membrane winding roller 50, hydrogen fuel proton exchange membrane winding roller 58, protective film unwinding roller 60, and lower PTTF membrane winding roller 66 are all equipped with roll diameter detection laser sensors 67. In actual operation, the roll diameter detection laser sensors 67 can detect the roll diameter of the substrate during winding and unwinding. The winding and unwinding drive servo motors can automatically match the speed according to the roll diameter, reducing substrate vibration and thus improving transfer quality.

[0040] This multi-functional composite transfer machine for hydrogen fuel cell proton exchange membranes achieves multiple composite paths for the anode membrane, cathode membrane, and proton exchange membrane, exhibiting strong process adaptability. This invention can achieve four transfer composite paths: 1. The proton exchange membrane is first composited with the cathode membrane, then the protective film of the proton exchange membrane is removed, and it is then composited with the anode membrane before entering the transfer rollers for thermal composite transfer. 2. The proton exchange membrane has its protective film removed before being composited with the anode membrane. Then it enters the transfer rollers with the cathode membrane for thermal composite transfer. 3. The proton exchange membrane has its protective film removed before being thermally composited with the anode and cathode membranes at the hot-rolling transfer rollers. 4. The proton exchange membrane has its protective film removed before being pre-composite with the anode and cathode membranes before entering the transfer rollers, and then enters the hot-rolling transfer rollers for thermal composite transfer. This improves the adaptability of products in actual production.

[0041] This invention automatically aligns the anode membrane, proton exchange membrane, and cathode membrane by detecting the coating edges using a correction CCD photoelectric sensor. This ensures accurate positioning of the anode and cathode catalyst coatings on the proton exchange membrane during composite transfer. The correction CCD photoelectric sensor is positioned by a servo motor. It features automatic positioning to adapt to coatings of varying widths. After the coating width is calibrated on the touchscreen, the servo motor calibrates the current position of the photoelectric sensor. When changing product models, the new product's coating width is input, and the photoelectric sensor automatically positions itself under the drive of the servo motor. This avoids repeated positioning adjustments and reduces material waste during the adjustment process.

[0042] In this invention, a roll diameter detection laser sensor 67 is used to detect the roll diameter of the substrate during winding and unwinding. The winding and unwinding drive servo motors can automatically match their speeds according to the roll diameter, reducing substrate vibration. Simultaneously, a tension detection roller detects the material tension signal. The tension signal is further used by a PLC to perform PID adjustment on the servo motor speed, improving tension control accuracy and speed closed-loop feedback. This ensures that the surface of the composite transfer material is free from stretching deformation, prevents substrate vibration, and improves product quality.

[0043] In this invention, a pair of traction roller mechanisms are provided after the hot-rolled transfer roller. The traction roller mechanism consists of a traction roller, a traction pressure roller, and a drive servo motor. Between the hot-rolled transfer roller and the traction roller mechanism, a tension roller mechanism and an encoding roller mechanism are provided. The tension roller mechanism controls the substrate between the hot-rolled transfer roller and the traction roller mechanism, and ensures synchronous rotation of the two mechanisms by adjusting the speed of the servo motor through a closed loop, thereby achieving synchronous speed control. The encoding roller consists of an aluminum guide roller and an encoder. It has an automatic length recording function. This ensures that the PEM film has a uniform coating length and gap length in the gap transfer process, improving product consistency.

[0044] In this invention, a protective film unwinding mechanism is provided during the winding of the finished hydrogen fuel proton exchange membrane (PEM membrane). The protective film is applied to the surface of the finished PEM membrane, and surface lamination is completed on the winding shaft. The protective film is then applied to the surface of the finished membrane. This ensures that the finished product has less exposure time to air in subsequent processes, preventing water vapor and dust in the air from adversely affecting the finished PEM membrane, thereby further improving product quality.

[0045] The above description is only a preferred embodiment of the present invention, but the present invention should not be limited to the content disclosed in the embodiments and drawings. Therefore, any equivalent or modified embodiments made without departing from the spirit of the present invention shall fall within the protection scope of the present invention.

Claims

1. A multifunctional composite transfer machine for hydrogen fuel proton exchange membranes, characterized in that... include: The system comprises a cathode membrane unwinding mechanism, a proton exchange membrane unwinding mechanism, an anode membrane unwinding mechanism, a transfer roller mechanism, a protective film peeling and winding mechanism, an upper PTTF membrane winding mechanism, a hydrogen fuel proton exchange membrane winding mechanism, a lower PTTF membrane winding mechanism, and a protective film unwinding mechanism. The cathode membrane unwinding mechanism, proton exchange membrane unwinding mechanism, and anode membrane unwinding mechanism are arranged in parallel. The transfer roller mechanism is installed behind these three mechanisms. The protective film peeling and winding mechanism is installed in front of the transfer roller mechanism. The upper PTTF membrane winding mechanism, hydrogen fuel proton exchange membrane winding mechanism, and lower PTTF membrane winding mechanism are arranged in parallel behind the transfer roller mechanism. The protective film unwinding mechanism is installed behind the hydrogen fuel proton exchange membrane winding mechanism. The cathode membrane, proton exchange membrane, and anode membrane are respectively connected via the cathode membrane unwinding mechanism, the proton exchange membrane unwinding mechanism, and the anode membrane unwinding mechanism. After unwinding, the membrane is fed into the transfer roller mechanism for composite transfer, transferring the cathode catalyst coating on the cathode film and the anode catalyst coating on the anode film onto the proton exchange membrane. The membrane is then wound up by the hydrogen fuel proton exchange membrane winding mechanism. The transferred cathode film is wound up by the upper PTTF membrane winding mechanism, and the transferred anode film is wound up by the lower PTTF membrane winding mechanism. Before composite transfer, the proton exchange membrane body is separated from the proton protective film by a peeling knife. The proton exchange membrane body enters the transfer roller mechanism for composite transfer with the cathode and anode films. The protective film peeling and winding mechanism is used to wind up the peeled proton protective film. The protective film unwinding mechanism unwinds the surface protective film onto the surface of the hydrogen fuel proton exchange membrane after composite transfer, and then winds it up together by the hydrogen fuel proton exchange membrane winding mechanism.

2. The multifunctional composite transfer machine for hydrogen fuel proton exchange membranes as described in claim 1, characterized in that: The transfer roller mechanism includes a transfer frame, on which an upper transfer roller and a lower transfer roller are mounted side-by-side and closely fitted. The upper transfer roller is fixedly mounted on the transfer frame, and the lower transfer roller is mounted on a ball bearing guide rail on the transfer frame. A load cell mounting base is mounted below the lower transfer roller, and a load cell is mounted on the load cell mounting base. The load cell is in contact with the lower transfer roller. The load cell mounting base is mounted on a linear guide rail on the transfer frame, and a ball screw jack is mounted at the bottom of the load cell mounting base. A ball screw servo motor is mounted at the bottom of the ball screw jack.

3. The multifunctional composite transfer machine for hydrogen fuel proton exchange membranes as described in claim 2, characterized in that: The cathode film unwinding mechanism includes a cathode film unwinding roller, a first guide roller is installed behind the cathode film unwinding roller, a first CCD photoelectric sensor and a first CCD photoelectric sensor positioning servo motor are installed below the first guide roller, a first tension detection roller is installed behind the first tension detection roller, a first tension adjustment platform is installed behind the first tension adjustment platform, a second guide roller and a third guide roller are installed behind the third guide roller, a pressure roller device composed of a small pressure roller and a pressure roller support roller is installed behind the pressure roller device, a peeling roller is installed behind the peeling roller, a peeling knife is installed below the peeling roller, and a second transfer introduction roller is installed behind the peeling roller. The second transfer introduction roller is located obliquely above the upper transfer roller and the lower transfer roller.

4. The multifunctional composite transfer machine for hydrogen fuel proton exchange membranes as described in claim 3, characterized in that: The proton exchange membrane unwinding mechanism includes a proton exchange membrane unwinding roller, a fourth guide roller is installed behind the proton exchange membrane unwinding roller, a second CCD photoelectric sensor and a second CCD photoelectric sensor positioning servo motor are installed above the fourth guide roller, a second tension detection roller is installed behind the fourth guide roller, a second tension adjustment platform is installed behind the second tension detection roller, and a fifth guide roller is installed behind the second tension adjustment platform. The fifth guide roller is located in front of and below the pressure roller device composed of a small pressure roller and a pressure roller support roller.

5. The multifunctional composite transfer machine for hydrogen fuel proton exchange membranes as described in claim 4, characterized in that: The anode film unwinding mechanism includes an anode film unwinding roller, a sixth guide roller is installed behind the anode film unwinding roller, a third CCD photoelectric sensor and a third CCD photoelectric sensor positioning servo motor are installed above the sixth guide roller, a third tension detection roller is installed behind the sixth guide roller, a third tension adjustment platform is installed behind the third tension detection roller, a correction roller is installed behind the third tension adjustment platform, a seventh guide roller is installed behind the correction roller, and a first transfer introduction roller is installed behind the seventh guide roller. The first transfer introduction roller is located obliquely below the upper transfer roller and the lower transfer roller.

6. The multifunctional composite transfer machine for hydrogen fuel proton exchange membranes as described in claim 3, characterized in that: The protective film peeling and winding mechanism includes a protective film peeling and winding roller, which is installed below the peeling roller, and a ninth guide roller is installed between the protective film peeling and winding roller and the peeling roller.

7. The multifunctional composite transfer machine for hydrogen fuel proton exchange membranes as described in claim 2, characterized in that: The upper PTTF film winding mechanism includes an upper PTTF film winding roller, a thirteenth guide roller installed in front of the upper PTTF film winding roller, a fourth tension detection roller installed in front of the thirteenth guide roller, a fourth tension adjustment platform installed in front of the fourth tension detection roller, a twelfth guide roller installed in front of the fourth tension adjustment platform, a traction device consisting of a traction pressure roller and a traction roller installed in front of the twelfth guide roller, an eleventh guide roller installed in front of the traction device, a tenth guide roller installed in front of the eleventh guide roller, and a transfer lead-out roller installed in front of the tenth guide roller. The transfer lead-out roller is located behind the upper transfer roller and the lower transfer roller.

8. The multifunctional composite transfer machine for hydrogen fuel proton exchange membranes as described in claim 7, characterized in that: The hydrogen fuel proton exchange membrane winding mechanism includes a hydrogen fuel proton exchange membrane winding roller. A photoelectric sensor roller is installed in front of the hydrogen fuel proton exchange membrane winding roller. A fourth CCD photoelectric sensor is installed directly opposite the photoelectric sensor roller. A fifth tension sensor roller is installed in front of the photoelectric sensor roller. A fifth tension adjustment platform is installed in front of the fifth tension adjustment platform. A fifteenth guide roller is installed in front of the fifth tension adjustment platform. A fourteenth guide roller is installed in front of the fifteenth guide roller. The fourteenth guide roller is located behind the traction device composed of a traction pressure roller and a traction roller.

9. The multifunctional composite transfer machine for hydrogen fuel proton exchange membranes as described in claim 8, characterized in that: The lower PTTF film winding mechanism includes a lower PTTF film winding roller, a nineteenth guide roller installed in front of the lower PTTF film winding roller, a sixth tension detection roller installed in front of the nineteenth guide roller, a sixth tension adjustment platform installed in front of the sixth tension detection roller, an eighteenth guide roller installed in front of the sixth tension adjustment platform, and a seventeenth guide roller installed in front of the eighteenth guide roller. The seventeenth guide roller is located below and behind the traction device composed of the traction pressure roller and the traction roller.

10. The multifunctional composite transfer machine for hydrogen fuel proton exchange membranes as described in claim 8, characterized in that: The protective film unwinding mechanism includes a protective film unwinding roller, and a sixteenth guide roller is installed between the protective film unwinding roller and the hydrogen fuel proton exchange membrane take-up roller.

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