PEM membrane electrode five-in-one forming process

Abstract

The invention discloses a PEM membrane electrode five-in-one forming process, and particularly relates to the technical field of hydrogen fuel cell production, and the PEM membrane electrode five-in-one forming process comprises the following steps: cutting off a frame protection membrane and a frame membrane of a first layer of frame membrane roll material; the method comprises the following steps of: cutting off a first layer of frame film roll material, cutting off a frame protective film and a frame film of a second layer of frame film roll material, cutting the frame film into sheets, fitting the 3CCM with the first layer of frame film, fitting the second layer of frame film sheet material and the 3CCM, cutting water pores and shapes of a PEM film electrode semi-finished product to form a PEM film electrode product, and finally stripping off the product. The invention provides a PEM membrane electrode five-in-one automatic forming process, and solves the problems of low equipment automation, difficult roll material and sheet material laminating process, difficult roll material stripping, high product waste rate and low product laminating precision in the prior art.

Description

Technical Field

[0001] The present invention relates to the technical field of hydrogen fuel cell production, and in particular to a PEM membrane electrode five-in-one molding process. Background Art

[0002] PEM membrane electrode is a core component in hydrogen fuel cells and certain types of water electrolysis systems. In hydrogen fuel cells, PEM membrane electrode is responsible for the migration and transmission of protons, enabling protons to move from the anode to the cathode while electrons flow through an external circuit to generate current. PEM membrane electrode consists of proton exchange membrane, anode and cathode GDL and frame.

[0003] 3CCM contains a proton exchange membrane and two layers of catalytic coating. 3CCM is sandwiched between two layers of frame membrane to form a five-layer membrane electrode. At present, due to the difficulty of laminating the roll and sheet materials, the existing five-layer membrane electrode forming method is mainly to first cut the raw material roll into sheets through a cutting process, and then perform a hot flat pressing process between the sheets, resulting in overall process redundancy and low automation rate, thus leading to low processing efficiency. Summary of the invention

[0004] The purpose of the present invention is to provide a PEM membrane electrode five-in-one molding process to solve the problems of process redundancy and low processing efficiency in the existing membrane electrode molding technology.

[0005] In order to achieve the above-mentioned purpose, the present invention provides the following technical solutions: a PEM membrane electrode five-in-one molding process, the PEM membrane electrode product is composed of two layers of frame film and a layer of 3CCM sheet material in the middle, and the frame film roll has three layers from top to bottom: frame protection film, frame film and bottom film. The specific molding process steps are as follows: Step 1: The first layer of frame film roll is continuously conveyed, and the first layer of frame film roll is processed first: the frame protection film and the frame film are cut, and then the frame protection film is rolled up, and the frame film is conveyed to the roller pressing and laminating station along with the bottom film; Step 2: Take a piece of 3CCM for deviation correction. At the same time, process the second layer of frame film roll: cut the frame protection film and the frame film, then roll up the frame protection film, and then cut the frame film into sheets. The waste frame film is rolled up with the bottom film; Step 4: First, laminate the 3CCM onto the first layer of frame film, and then laminate the second layer of frame film onto the top of the 3CCM. Then, heat and pressurize the laminated PEM membrane electrode semi-finished product, and then roll up the frame film remaining on the first frame film roll supporting the bottom film. Step 5: Cut the water pores and shape of the PEM membrane electrode semi-finished product to form a PEM membrane electrode product, and then roll up the cut waste; Step 6: Finally, peel off the PEM membrane electrode product attached to the base membrane.

[0006] Preferably, the molding system used in the process includes a first layer frame film transmission system, a second layer frame film feeding system and a 3CCM feeding system.

[0007] Preferably, the first layer frame film transmission system includes a feeding mechanism I, a three-axis cutting mechanism I, a cylinder lifting mechanism I, a deviation correction transition mechanism I, a waste winding mechanism I, a roller pressing and laminating mechanism, an active feeding mechanism, a heating and pressure maintaining mechanism, a cylinder lifting mechanism II, a deviation correction transition mechanism II, a tape winding mechanism, a three-axis cutting mechanism II, a waste winding mechanism II, a finished product stripping mechanism and a material receiving rack which are arranged in sequence; The cylinder lifting mechanism II has the same structure as the cylinder lifting mechanism I, and the deviation correction transition mechanism II has the same structure as the deviation correction transition mechanism I; The feeding mechanism I includes a feeding rack and a guide assembly arranged on one side of the feeding rack. The guide assembly includes a feeding rack, a plurality of feeding guide rollers and a plurality of pressing mechanisms. The plurality of feeding guide rollers are rotatably arranged in the feeding rack for guiding the frame film roll. The pressing mechanism includes a fixed plate, a pressing plate and a pressing cylinder. The fixed plate is fixed to the top of the feeding rack, and a pressing plate for pressing and limiting the frame film roll is arranged at the bottom of the fixed plate. The pressing plate is driven up and down by the pressing cylinder to prevent the frame film roll from deviating. The three-axis cutting mechanism I includes a cutting table and a cutting knife assembly arranged on the top of the cutting table, and pressing mechanisms are also arranged on both sides of the three-axis cutting mechanism I. The pressing mechanisms on both sides of the three-axis cutting mechanism I press the frame film rolls on both sides of the cutting table, and the cutting knife assembly moves in the X, Y, and Z axis directions to cut the frame protection film and the frame film of the frame film roll; The three-axis cutting mechanism II has the same structure as the three-axis cutting mechanism I. The three-axis cutting mechanism II cuts the water pores and the shape of the PEM membrane electrode semi-finished product.

[0008] Preferably, the cylinder lifting mechanism I comprises a frame, guide rollers are arranged on both sides of the frame, a lifting plate is arranged inside the frame between the two guide rollers, and the lifting plate is driven to rise and fall by the lifting cylinder; the frame film roll is supported by the two guide rollers, and the lifting plate lifts the frame film roll under the drive of the lifting cylinder, so that the expansion force of the frame film roll is controllable, thereby preventing the frame film roll from being too tight or too loose; The deviation correction transition mechanism I includes a deviation correction component and two groups of guide roller frames arranged on both sides of the guide roller frame. The two groups of guide roller frames support the frame film roll, and the deviation correction component detects and corrects the material deviation; The waste material winding mechanism I comprises a winding frame, in which a guide roller I and a tape roll roller I arranged on the top of the guide roller I are rotatably arranged, a winding roller I is arranged on the top of the tape roll roller I, and the winding roller I is driven to rotate by a winding motor installed on the winding frame, and the winding frame is also provided with a winding guide roller, a tape roll is sleeved on the tape roll roller I, and one end of the tape roll is passed around the winding guide roller and is wound and fixed on the winding roller I; the cut frame film roll passes between the guide roller I and the tape roll roller I, and the winding motor drives the winding roller I to rotate intermittently, driving the tape roll to rotate intermittently, and the tape roll rewinds the frame protective film on the first layer of frame film roll; The waste material rewinding mechanism II has the same structure as the waste material rewinding mechanism I. The waste material rewinding mechanism II uses a tape roll to rewind the waste material cut from the PEM membrane electrode semi-finished product.

[0009] Preferably, the 3CCM feeding system includes a visual correction mechanism and a 3CCM feeding mechanism; The 3CCM feeding mechanism includes multiple silos for storing 3CCM. A robotic arm is provided on one side of the silo. A suction cup is provided on the robotic arm. The robotic arm drives the suction cup to absorb the 3CCM on the silo and transport it to the visual correction mechanism. The visual correction mechanism includes an adjustable material plate. The 3CCM is sent to the adjustable material plate. A visual inspection system is set up on the top of the adjustable material plate. The visual inspection system performs visual inspection on the 3CCM, and then the driving device adjusts the position of the adjustable material plate to realize the correction of the 3CCM on the adjustable material plate.

[0010] Preferably, the second layer frame film feeding system includes a feeding mechanism II, a three-axis cutting mechanism III, a waste winding mechanism III, a cutting knife mechanism and a cylinder return mechanism, the feeding mechanism II has the same structure as the feeding mechanism I, the three-axis cutting mechanism III has the same structure as the three-axis cutting mechanism I, the waste winding mechanism III has the same structure as the waste winding mechanism I, and the waste winding mechanism III has an adhesive tape roll to roll up the frame protective film on the second layer frame film roll; The cutter mechanism includes a cutter frame and a cutter arranged at the top of the cutter frame. The cutter is driven to rise and fall by a cutting cylinder fixed at the top of the cutter frame to cut the second layer of frame film roll into sheets. The cylinder alignment mechanism includes a profiling plate and eight alignment cylinders arranged on the outside of the profiling plate. Every two alignment cylinders form a group. The profiling plate and the second layer of frame membrane sheet have the same size. The second layer of frame membrane sheet is placed in the profiling plate. Four groups of alignment cylinders respectively support the four sides of the profiling plate, thereby indirectly realizing the positioning of the second layer of frame membrane sheet.

[0011] Preferably, the roller pressing laminating mechanism comprises a flip plate which can be flipped and moved and is arranged at one end of the roller pressing frame, a roller pressing heating roller is arranged at the other end of the roller pressing frame, and the roller pressing heating roller is driven to move by a motor screw transmission assembly, clamping mechanisms are arranged on both sides of the roller pressing frame, and the roller pressing heating roller and the motor screw transmission assembly are driven to rise and fall by a jacking assembly at the bottom; Two sets of clamping mechanisms are used to clamp the two ends of the first layer of frame film roll, and the flip plate flips and transports the 3CCM or the second layer of frame film sheet to the waiting bonding position, and then the lifting component drives the roller pressing and heating roller to move up to the waiting bonding position, and the motor screw transmission component drives the roller pressing and heating roller to move, and the first layer of frame film and 3CCM, and the second layer of frame film sheet and 3CCM are roll-pressed and bonded.

[0012] Preferably, the active feeding mechanism includes an active roller and a driven roller arranged in a feeding frame, the driven roller is arranged on the top of the active roller, the active roller is driven to rotate by a feeding motor on the feeding frame, and the driven roller is driven to rise and fall by a feeding cylinder fixed on the top of the feeding frame, the active roller rotates continuously, the feeding cylinder drives the driven roller to descend and press the laminated frame film roll, and the friction force is used to drive the frame film roll to be transported; The heating and pressure-maintaining mechanism includes a feed roller and an electromagnetic heating roller arranged in a fixed frame. The electromagnetic heating roller is arranged on the top of the feed roller. The feed roller is driven to rotate by a feed motor on the fixed frame, and the electromagnetic heating roller is driven to rise and fall by an electric cylinder fixed on the top of the fixed frame. The electromagnetic heating roller is driven down by the electric cylinder, so that the feed roller and the electromagnetic heating roller press the PEM membrane electrode semi-finished product to make it fit more fully.

[0013] Preferably, the tape winding mechanism comprises a coiling frame, a guide roller II and a pressure roller arranged on the top of the guide roller II are rotatably arranged in the coiling frame, a winding roller II is arranged on the top of the pressure roller, the winding roller II is driven to rotate by a coiling motor installed on the coiling frame, and the coiling frame is also provided with a tape winding roller II and a coiling guide roller, and the tape winding roller II and the coiling guide roller are respectively arranged on both sides of the pressure roller; A tape roll is sleeved on the tape roll roller II, and one end of the tape roll is wrapped around the pressure roller and the roll guide roller and then fixed on the winding roll II. The bottom film of the first frame film roll carries the PEM membrane electrode semi-finished product through the guide roller II and the pressure roller, and the tape roll is used to wind up the remaining frame film on the bottom film of the first frame film roll.

[0014] Preferably, the finished product stripping mechanism comprises a feed guide roller and an electrostatic rod arranged on one side of the feed guide roller, a stripping knife is arranged on the side of the electrostatic rod away from the feed guide roller, a finished product plate is arranged at the bottom of the stripping knife, and two bottom film guide rollers distributed up and down are arranged at the bottom of the feed guide roller; The bottom film of the first frame film roll carries the PEM membrane electrode product around the feeding guide roller and the electrostatic rod, and the stripping knife peels the PEM membrane electrode product on the bottom film and drops it on the finished plate. The bottom film passes through two bottom film guide rollers and is rolled up on the receiving rack.

[0015] In the above technical solution, the technical effects and advantages provided by the present invention are: The present invention provides a five-in-one automated forming process for PEM membrane electrode, wherein the frame film roll can be directly bonded to the 3CCM sheet, with a high degree of automation, solving the problems of low automation of current equipment, difficult bonding process between rolls and sheets, difficult stripping of rolls, and high product waste rate; The present invention corrects the position of materials during the molding process, improves the lamination accuracy of 3CCM sheets and frame films, and heats, pressurizes and trims the laminating products, thereby improving the quality of PEM membrane electrode products. The present invention simultaneously rolls up the waste materials during the molding process, thereby ensuring the neatness of the molding system, preventing the waste materials from affecting the product bonding process, and improving the product bonding accuracy. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is a process flow chart of the present invention; Figure 2 It is a schematic diagram of the product processing state of the present invention; Figure 3 It is the overall structural diagram of the molding system of the present invention; Figure 4 It is a structural diagram of the first layer frame film transmission system in the molding system of the present invention; Figure 5 It is the structural diagram of the feeding mechanism I of the present invention; Figure 6 It is a structural diagram of the three-axis cutting mechanism I of the present invention; Figure 7 It is a structural diagram of the cylinder lifting mechanism I of the present invention; Figure 8 It is a structural diagram of the deviation correction transition mechanism I of the present invention; Fig. 9 It is a structural diagram of the waste winding mechanism I of the present invention; Fig.10 It is a schematic diagram of the working of the waste reeling mechanism I of the present invention for reeling in the frame protective film; Fig.11 It is a structural diagram of the roller pressing and laminating mechanism of the present invention; Fig.12 It is a structural diagram of the active feeding mechanism of the present invention; Fig.13 This is a structural diagram of the heating and pressure-maintaining mechanism of the present invention; Fig.14It is a structural diagram of the adhesive tape winding mechanism of the present invention; Fig.15 It is a schematic diagram of the working of the adhesive tape winding mechanism of the present invention for winding up the frame film; Fig.16 It is the structural diagram of the finished product stripping mechanism and the cylinder lifting mechanism II of the present invention; Fig.17 This is a structural diagram of the finished product stripping mechanism of the present invention; Fig.18 It is a schematic diagram of the working of the finished product stripping mechanism of the present invention stripping the PEM membrane electrode product; Fig.19 It is a structural diagram of the 3CCM feeding system in the molding system of the present invention; Fig. 20 It is the structural diagram of the 3CCM feeding mechanism of the present invention; Fig.21 It is a structural diagram of the visual deviation correction mechanism of the present invention; Fig. 22 It is a structural diagram of the second layer frame film feeding system in the molding system of the present invention; Fig.23 It is a structural diagram of the cutter mechanism of the present invention; Fig.24 It is a structural diagram of the cylinder correcting mechanism of the present invention.

[0017] Description of reference numerals: 100, first layer frame film transmission system; 200, second layer frame film feeding system; 300, 3CCM feeding system; 1. Three-axis cutting mechanism Ⅰ; 2. Waste material winding mechanism Ⅰ; 3. Cutter mechanism; 4. Cylinder alignment mechanism; 5. Visual correction mechanism; 6. 3CCM feeding mechanism; 7. Material collection rack; 8. Cylinder lifting mechanism Ⅰ; 9. Heating and pressure-maintaining mechanism; 10. Correction transition mechanism Ⅱ; 11. Feeding mechanism Ⅰ; 12. Correction transition mechanism Ⅰ; 13. Roller pressing and laminating mechanism; 14. Active feeding mechanism; 15. Tape winding mechanism; 16. Finished product stripping mechanism; 17. Cylinder lifting mechanism Ⅱ; 18. Three-axis cutting mechanism Ⅱ; 19. Waste material winding mechanism Ⅱ; 20. Feeding mechanism Ⅱ; 21. Three-axis cutting mechanism Ⅲ; 22. Waste material winding mechanism Ⅲ; 101. cutting table; 102. cutting knife assembly; 111, unloading rack; 112, feeding rack; 113, feeding guide roller; 114, fixing plate; 115, pressing plate; 116, pressing cylinder; 121. guide roller frame; 122. deviation correction component; 131. Roller press frame; 132. Turning plate; 133. Roller press heating roller; 134. Motor screw transmission assembly; 135. Clamping mechanism; 136. Lifting assembly; 141. feeding frame; 142. driving roller; 143. driven roller; 144. feeding motor; 145. feeding cylinder; 151. Coil rack; 152. Guide roller II; 153. Press roller; 154. Winding roller II; 155. Coil motor; 156. Tape roller II; 157. Coil guide roller; 161, feeding guide roller; 162, electrostatic rod; 163, stripping knife; 164, finished board; 165, bottom film guide roller; 201, winding frame, 202, guide roller I; 203, tape winding roller I; 204, winding roller I; 205, winding motor; 206, winding guide roller; 301, cutting knife holder; 302, cutting knife; 303, cutting cylinder; 401, profiling plate; 402, return cylinder; 501, adjustable material board; 502, visual inspection system; 601, silo; 602, robotic arm; 603, suction cup; 801, frame; 802, guide roller; 803, lifting plate; 804, lifting cylinder; 901, fixed frame; 902, feed roller; 903, electromagnetic heating roller; 904, feed motor; 905, electric cylinder. DETAILED DESCRIPTION

[0018] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings.

[0019] The PEM membrane electrode product of the present invention is composed of two layers of frame film and a layer of 3CCM sheet material in the middle. The frame film roll has three layers from top to bottom: a frame protection film, a frame film and a bottom support film.

[0020] like Figure 3 As shown, the present invention provides a molding system for a PEM membrane electrode five-in-one molding process, including a first-layer frame film transmission system 100, a second-layer frame film feeding system 200 and a 3CCM feeding system 300.

[0021] like Figure 4 As shown, the first layer frame film transmission system 100 includes a feeding mechanism Ⅰ11, a three-axis cutting mechanism Ⅰ1, a cylinder lifting mechanism Ⅰ8, a correction transition mechanism Ⅰ12, a waste winding mechanism Ⅰ2, a roller pressing and laminating mechanism 13, an active feeding mechanism 14, a heating and pressure-maintaining mechanism 9, a cylinder lifting mechanism Ⅱ17, a correction transition mechanism Ⅱ10, a tape winding mechanism 15, a three-axis cutting mechanism Ⅱ18, a waste winding mechanism Ⅱ19, a finished product stripping mechanism 16 and a receiving rack 7, which are arranged in sequence; The cylinder lifting mechanism II17 has the same structure as the cylinder lifting mechanism I8, and the deviation correction transition mechanism II10 has the same structure as the deviation correction transition mechanism I12.

[0022] like Figure 5 As shown, the feeding mechanism Ⅰ11 includes a feeding frame 111 and a guide assembly arranged on one side of the feeding frame 111, and the guide assembly includes a feeding frame 112 and a plurality of feeding guide rollers 113, and the plurality of feeding guide rollers 113 are rotatably arranged in the feeding frame 112; At the same time, if Fig.12 As shown, the active feeding mechanism 14 includes an active roller 142 and a driven roller 143 arranged in a feeding frame 141, the driven roller 143 is arranged on the top of the active roller 142, the active roller 142 is driven to rotate by a feeding motor 144 on the feeding frame 141, and the driven roller 143 is driven to rise and fall by a feeding cylinder 145 fixed on the top of the feeding frame 141; The frame film roll is sleeved on the unloading rack 111, and then one end of the frame film roll is pulled out to pass through multiple feeding guide rollers 113 and pass between the active roller 142 and the driven roller 143, and then the active roller 142 keeps rotating, and the feeding cylinder 145 drives the driven roller 143 to descend and press the laminated frame film roll, and the friction force is used to drive the frame film roll to be transported, and at the same time the unloading rack 111 unloads the material, and the feeding guide roller 113 guides the frame film roll; Furthermore, multiple sets of pressing mechanisms are provided, which include a fixed plate 114, a pressing plate 115 and a pressing cylinder 116. The fixed plate 114 is fixed to the top of the loading frame 112, and a pressing plate 115 for pressing and limiting the frame film roll is provided at the bottom of the fixed plate 114. The pressing plate 115 is driven by the pressing cylinder 116 to move up and down to limit the top of the frame film roll to prevent the frame film roll from deviating.

[0023] like Figure 6 As shown, the three-axis cutting mechanism Ⅰ1 includes a cutting table 101 and a cutting knife assembly 102 arranged on the top of the cutting table 101. The cutting knife assembly 102 can be driven by an XYZ three-axis linear module to move in the X, Y, and Z axis directions, and pressing mechanisms are also provided on both sides of the three-axis cutting mechanism Ⅰ1. The pressing mechanisms on both sides of the three-axis cutting mechanism Ⅰ1 press the frame film roll on both sides of the cutting table 101, and the cutting knife assembly 102 moves in the X, Y, and Z axis directions to cut the frame protection film and the frame film of the frame film roll; The three-axis cutting mechanism II18 has the same structure as the three-axis cutting mechanism I1. The three-axis cutting mechanism II18 can cut the water pores and the shape of the PEM membrane electrode semi-finished product.

[0024] like Figure 7As shown, the cylinder lifting mechanism Ⅰ8 includes a frame 801, guide rollers 802 are provided on both sides of the frame 801, and a lifting plate 803 is provided between the two guide rollers 802 inside the frame 801, and the lifting plate 803 is driven to rise and fall by the lifting cylinder 804; in the process of film threading and production change, it is often encountered that the expansion force is uncontrollable, resulting in the roll being too tight or too loose. At this time, the two guide rollers 802 support the frame film roll, and the lifting plate 803 lifts the frame film roll under the drive of the lifting cylinder 804, so that the expansion force of the frame film roll can be controlled to avoid the frame film roll being too tight or too loose.

[0025] like Figure 8 As shown, the deviation correction transition mechanism I12 includes a deviation correction component 122 and two groups of guide roller frames 121 arranged on both sides of the guide roller frame 121. The two groups of guide roller frames 121 support the frame film roll, and the deviation correction component 122 detects and corrects the material offset. The deviation correction component 122 is a closed-loop automatic control system composed of a deviation correction controller, an ultrasonic sensor, an electric actuator and a deviation correction guide roller. The ultrasonic sensor detects the position of the edge or line of the material. The position information is converted into an electrical signal and transmitted to the deviation correction controller. The deviation correction controller compares the signal with the set position signal, and outputs a corresponding adjustment signal according to the deviation to drive the electric actuator to perform a correction action, thereby achieving the purpose of correcting the material offset, and the detection accuracy is as high as ±0.01mm.

[0026] like Fig. 9 and Fig.10 As shown, the waste winding mechanism Ⅰ2 includes a winding frame 201, in which a guide roller Ⅰ202 and a tape roll Ⅰ203 arranged on the top of the guide roller Ⅰ202 are rotatably provided, and a winding roller Ⅰ204 is arranged on the top of the tape roll Ⅰ203, and the winding roller Ⅰ204 is driven to rotate by a winding motor 205 installed on the winding frame 201, and the winding frame 201 is also provided with a winding guide roller 206, and a tape roll is sleeved on the tape roll Ⅰ203, and one end of the tape roll passes around the winding guide roller 206 and is wound and fixed on the winding roller Ⅰ204; the cut frame film roll passes between the guide roller Ⅰ202 and the tape roll Ⅰ203, and the winding motor 205 drives the winding roller Ⅰ204 to rotate intermittently, driving the tape roll to rotate intermittently, and the tape roll rewinds the frame protective film on the first layer of frame film roll; The waste winding mechanism II19 has the same structure as the waste winding mechanism I2. The waste winding mechanism II19 uses a tape roll to wind up the waste cut from the PEM membrane electrode semi-finished product.

[0027] like Fig.19 As shown, the 3CCM feeding system 300 includes a visual correction mechanism 5 and a 3CCM feeding mechanism 6.

[0028] Specifically, Fig. 20As shown, the 3CCM feeding mechanism 6 includes a plurality of silos 601 for storing 3CCM. A robotic arm 602 is provided on one side of the silo 601. A suction cup 603 is provided on the robotic arm 602. The suction cup 603 is driven by the robotic arm 602 to absorb the 3CCM on the silo 601 and transport it to the visual correction mechanism 5.

[0029] like Fig.21 As shown, the visual correction mechanism 5 includes an adjustable material plate 501, which can be driven and moved by a driving device such as a linear module, and a visual detection system 502 is set up on the top of the adjustable material plate 501. The visual detection system 502 uses an industrial camera to replace human eyes to complete functions such as recognition, measurement, and positioning. It is mainly composed of an industrial camera, an industrial lens, a visual detection light source, a controller, etc. The 3CCM is sent to the adjustable material plate 501, and the visual detection system 502 performs a visual inspection on the 3CCM. If there is a position deviation, the driving device adjusts the position of the adjustable material plate 501 to drive the 3CCM to adjust its position, thereby correcting the 3CCM.

[0030] like Fig. 22 As shown, the second layer frame film feeding system 200 includes a feeding mechanism II20, a three-axis cutting mechanism III21, a waste winding mechanism III22, a cutter mechanism 3 and a cylinder alignment mechanism 4. The feeding mechanism II20 has the same structure as the feeding mechanism I11, the three-axis cutting mechanism III21 has the same structure as the three-axis cutting mechanism I1, the waste winding mechanism III22 has the same structure as the waste winding mechanism I2, and the waste winding mechanism III22 has an adhesive tape roll to roll up the frame protective film on the second layer frame film roll.

[0031] like Fig.23 As shown, the cutting mechanism 3 includes a cutting frame 301 and a cutting knife 302 arranged at the top of the cutting frame 301. The cutting knife 302 is driven to rise and fall by a cutting cylinder 303 fixed at the top of the cutting frame 301 to cut the second layer of frame film roll into sheets.

[0032] like Fig.24 As shown, the cylinder alignment mechanism 4 includes a profiling plate 401 and eight alignment cylinders 402 arranged on the outside of the profiling plate 401, and each two alignment cylinders 402 form a group. The profiling plate 401 has the same size as the second layer of frame film material. The second layer of frame film material is placed in the profiling plate 401. The four groups of alignment cylinders 402 respectively support the four sides of the profiling plate 401, thereby indirectly realizing the positioning of the second layer of frame film material.

[0033] Next, you need to stick the first frame film, 3CCM, and the second frame film sheet together, such as Fig.11As shown, the roller-pressing laminating mechanism 13 includes a flip plate 132 that can be flipped and moved and is arranged at one end of a roller-pressing frame 131. The flip plate 132 can be driven to move by a driving device such as a linear module, and can be driven to rotate by a driving device such as a motor to achieve flipping. A roller-pressing heating roller 133 is arranged at the other end of the roller-pressing frame 131, and the roller-pressing heating roller 133 is driven to move by a motor screw transmission assembly 134. Clamping mechanisms 135 are arranged on both sides of the roller-pressing frame 131. The structure of the clamping mechanism 135 can be set to be consistent with the structure of the laminating mechanism, and is used to clamp the frame film coil. The roller-pressing heating roller 133 and the motor screw transmission assembly 134 are driven to rise and fall by a jacking assembly 136 at the bottom. The jacking assembly 136 can be set to a cylinder, a hydraulic cylinder, an electric push rod, etc. Two sets of clamping mechanisms 135 are used to clamp the two ends of the first layer of frame film roll, and a robot is set to place the 3CCM and the second layer of frame film sheets on the flip plate 132 in turn. Then the flip plate 132 flips the 3CCM or the second layer of frame film sheets and transports them to the position to be bonded. Then the lifting component 136 drives the roller-pressing heating roller 133 to move up to the position to be bonded, and the motor screw transmission component 134 drives the roller-pressing heating roller 133 to move, so as to roll-press and bond the first layer of frame film with the 3CCM, and the second layer of frame film sheets with the 3CCM.

[0034] like Fig.13 As shown, the heating and pressure-maintaining mechanism 9 includes a feed roller 902 and an electromagnetic heating roller 903 arranged in a fixed frame 901. The electromagnetic heating roller 903 is arranged on the top of the feed roller 902. The feed roller 902 is driven to rotate by a feed motor 904 on the fixed frame 901, and the electromagnetic heating roller 903 is driven to rise and fall by an electric cylinder 905 fixed on the top of the fixed frame 901. The electromagnetic heating roller 903 is driven to descend by the electric cylinder 905, so that the feed roller 902 and the electromagnetic heating roller 903 press the PEM membrane electrode semi-finished product to make it fit more fully.

[0035] like Fig.14 and Fig.15 As shown, the tape winding mechanism 15 includes a coiling frame 151, in which a guide roller II 152 and a pressure roller 153 arranged on the top of the guide roller II 152 are rotatably arranged, and a winding roller II 154 is arranged on the top of the pressure roller 153, and the winding roller II 154 is driven to rotate by a coiling motor 155 installed on the coiling frame 151, and the coiling frame 151 is also provided with a tape winding roller II 156 and a coiling guide roller 157, and the tape winding roller II 156 and the coiling guide roller 157 are respectively arranged on both sides of the pressure roller 153; A tape roll is sleeved on the tape roll roller II 156, and one end of the tape roll is wrapped around the pressure roller 153 and the roll guide roller 157 and then fixed on the winding roller II 154. The bottom film of the first frame film roll carries the PEM membrane electrode semi-finished product through the guide roller II 152 and the pressure roller 153, and the tape roll is used to wind up the remaining frame film on the bottom film of the first frame film roll.

[0036] like Fig.16 , Fig.17 and Fig.18 As shown, the finished product stripping mechanism 16 includes a feed guide roller 161 and an electrostatic rod 162 arranged on one side of the feed guide roller 161, the electrostatic rod 162 is used to eliminate static electricity generated during stripping, a stripping knife 163 is arranged on the side of the electrostatic rod 162 away from the feed guide roller 161, a finished product plate 164 is arranged at the bottom of the stripping knife 163, and two bottom film guide rollers 165 distributed up and down are arranged at the bottom of the feed guide roller 161; The bottom film of the first frame film roll carries the PEM membrane electrode product around the feed guide roller 161 and the electrostatic rod 162, and the stripping knife 163 peels off the PEM membrane electrode product on the bottom film and drops it onto the finished plate 164. The bottom film passes through two bottom film guide rollers 165 and is rolled up on the material receiving rack 7. The vacuum suction cup on the finished plate 164 can be taken and placed on the platform by a robot.

[0037] like Figure 1 and Figure 2 As shown, the five-in-one forming process of the PEM membrane electrode of the present invention is as follows: Step 1: A1: The first layer of frame film roll is loaded onto the loading mechanism Ⅰ11 of the first layer of frame film transmission system 100, and the first layer of frame film roll is continuously transported by the active feeding mechanism 14. The product status is as follows Figure 2 As shown in S1; A2: Processing of the first layer of frame film roll: The three-axis cutting mechanism Ⅰ1 cuts the frame protection film and the frame film. The product status is as follows Figure 2 As shown in S2; A3: The cylinder lifting mechanism Ⅰ8 and the deviation correction transition mechanism Ⅰ12 adjust the tension and correct the deviation of the first layer of frame film roll, and then the waste winding mechanism Ⅰ2 winds up the frame protection film. The product status is as follows: Figure 2 As shown in S3; A4: The first layer of frame film roll material continues to be transported forward to the roller pressing and laminating mechanism 13 station; Step 2: The 3CCM feeding mechanism 6 of the 3CCM feeding system 300 takes a piece of 3CCM and places it in the visual correction mechanism 5 for photographing and correction; Step 3: Simultaneously with step 2, the second layer of frame film roll is loaded onto the loading mechanism II20 of the second layer of frame film loading system 200, and the second layer of frame film roll is processed: the three-axis cutting mechanism III21 cuts the frame protection film and the frame film, and then the waste winding mechanism III22 winds up the frame protection film, and then cuts the frame film into sheets, and the frame film waste is wound up with the bottom film; Step 4: B1: At the 13th station of the roller laminating mechanism, 3CCM is first laminated to the first layer of frame film. The product status is as follows Figure 2 As shown in S4, the second layer of frame film sheet is then attached to 3CCM, and the product state is as follows Figure 2 As shown in S5; B2: The laminated PEM membrane electrode semi-finished product is heated and pressurized by the heating and pressurizing mechanism 9; B3: The PEM membrane electrode semi-finished product passes through the cylinder lifting mechanism Ⅱ17 and the correction transition mechanism Ⅱ10 to achieve the second tension adjustment and correction; B4: The tape rewinding mechanism 15 rewinds the frame film remaining on the bottom film of the first frame film roll, and the product status is as follows: Figure 2 As shown in S6; Step 5: The three-axis cutting mechanism II 18 cuts the water pores and shape of the PEM membrane electrode semi-finished product. The product state is as follows: Figure 2 As shown in S7, a PEM membrane electrode product is formed, and then the waste material winding mechanism II 19 winds up the cut waste material. The product state is as shown in FIG. Figure 2 As shown in S8; Step 6: Finally, the bottom film of the first frame film roll carries the PEM membrane electrode product through the finished product stripping mechanism 16, and the finished product stripping mechanism 16 strips the PEM membrane electrode product attached to the bottom film. The product status is as follows: Figure 2 As shown in S9 , the bottom film is wound on the receiving rack 7 .

Claims

1. A PEM membrane electrode five-in-one molding process, characterized by: The PEM membrane electrode product is composed of two layers of frame film and a layer of 3CCM sheet material in the middle. The frame film roll has three layers from top to bottom: frame protection film, frame film and bottom film. The specific molding process steps are as follows: Step 1: The first layer of frame film roll is continuously conveyed, and the first layer of frame film roll is processed first: the frame protection film and the frame film are cut, and then the frame protection film is rolled up, and the frame film is conveyed to the roller pressing and laminating station along with the bottom film; Step 2: Take a piece of 3CCM for deviation correction. At the same time, process the second layer of frame film roll: cut the frame protection film and the frame film, then roll up the frame protection film, and then cut the frame film into sheets. The waste frame film is rolled up with the bottom film; Step 4: First, laminate the 3CCM onto the first layer of frame film, and then laminate the second layer of frame film onto the top of the 3CCM. Then, heat and pressurize the laminated PEM membrane electrode semi-finished product, and then roll up the frame film remaining on the first frame film roll supporting the bottom film. Step 5: Cut the water pores and shape of the PEM membrane electrode semi-finished product to form a PEM membrane electrode product, and then roll up the cut waste; Step 6: Finally, the PEM membrane electrode product attached to the bottom membrane is peeled off; The molding system used in the process includes a first layer frame film transmission system (100), a second layer frame film feeding system (200) and a 3CCM feeding system (300); The first layer frame film transmission system (100) comprises a feeding mechanism I (11), a three-axis cutting mechanism I (1), a cylinder lifting mechanism I (8), a deviation correction transition mechanism I (12), a waste material winding mechanism I (2), a roller pressing and laminating mechanism (13), an active feeding mechanism (14), a heating and pressure-maintaining mechanism (9), a cylinder lifting mechanism II (17), a deviation correction transition mechanism II (10), a tape winding mechanism (15), a three-axis cutting mechanism II (18), a waste material winding mechanism II (19), a finished product stripping mechanism (16) and a material receiving rack (7) which are arranged in sequence; The cylinder lifting mechanism II (17) has the same structure as the cylinder lifting mechanism I (8), and the deviation correction transition mechanism II (10) has the same structure as the deviation correction transition mechanism I (12); The feeding mechanism I (11) comprises a feeding frame (111) and a guide assembly arranged on one side of the feeding frame (111), the guide assembly comprising a feeding frame (112), a plurality of feeding guide rollers (113) and a plurality of pressing mechanisms, the plurality of feeding guide rollers (113) being rotatably arranged in the feeding frame (112) for guiding the frame film roll; the pressing mechanism comprises a fixed plate (114), a pressing plate (115) and a pressing cylinder (116), the fixed plate (114) being fixed to the top of the feeding frame (112), and a pressing plate (115) for pressing and limiting the frame film roll is arranged at the bottom of the fixed plate (114), the pressing plate (115) being driven by the pressing cylinder (116) to move up and down to prevent the frame film roll from deviating; The three-axis cutting mechanism I (1) comprises a cutting table (101) and a cutting knife assembly (102) arranged on the top of the cutting table (101), and pressing mechanisms are also arranged on both sides of the three-axis cutting mechanism I (1), and the pressing mechanisms on both sides of the three-axis cutting mechanism I (1) press the frame film roll on both sides of the cutting table (101), and the cutting knife assembly (102) moves in the X, Y, and Z axis directions to cut the frame protection film and the frame film of the frame film roll; The three-axis cutting mechanism II (18) has the same structure as the three-axis cutting mechanism I (1). The three-axis cutting mechanism II (18) cuts the water pores and the shape of the PEM membrane electrode semi-finished product.

2. A PEM membrane electrode five-in-one molding process according to claim 1, characterized in that: The cylinder lifting mechanism I (8) comprises a frame (801), guide rollers (802) are provided on both sides of the frame (801), a lifting plate (803) is provided inside the frame (801) and between the two guide rollers (802), and the lifting plate (803) is driven to rise and fall by a lifting cylinder (804); the frame film roll is supported by the two guide rollers (802), and the lifting plate (803) lifts the frame film roll under the drive of the lifting cylinder (804), so that the expansion force of the frame film roll can be controlled, thereby preventing the frame film roll from being too tight or too loose; The deviation correction transition mechanism I (12) comprises a deviation correction component (122) and two groups of guide roller frames (121) arranged on both sides of the guide roller frame (121), the two groups of guide roller frames (121) support the frame film roll, and the deviation correction component (122) detects and corrects the material deviation; The waste material winding mechanism I (2) comprises a winding frame (201), wherein a guide roller I (202) and a tape roll roller I (203) arranged on the top of the guide roller I (202) are rotatably arranged in the winding frame (201), a winding roller I (204) is arranged on the top of the tape roll roller I (203), and the winding roller I (204) is driven to rotate by a winding motor (205) installed on the winding frame (201), and the winding frame (201) is also provided with a winding guide roller. Roller (206), a tape roll is sleeved on the tape roll roller I (203), and one end of the tape roll passes around the winding guide roller (206) and is wound and fixed on the winding roller I (204); the cut frame film roll passes between the guide roller I (202) and the tape roll roller I (203), and the winding motor (205) drives the winding roller I (204) to rotate intermittently, driving the tape roll to rotate intermittently, and the tape roll winds up the frame protection film on the first layer of frame film roll; The waste material rewinding mechanism II (19) has the same structure as the waste material rewinding mechanism I (2), and the waste material rewinding mechanism II (19) uses a tape roll to rewind the waste material cut from the PEM membrane electrode semi-finished product.

3. A PEM membrane electrode five-in-one molding process according to claim 1, characterized in that: The 3CCM feeding system (300) comprises a visual correction mechanism (5) and a 3CCM feeding mechanism (6); The 3CCM feeding mechanism (6) comprises a plurality of silos (601) for storing 3CCMs, a mechanical arm (602) is provided on one side of the silo (601), a suction cup (603) is provided on the mechanical arm (602), and the suction cup (603) is driven by the mechanical arm (602) to absorb the 3CCMs on the silo (601) and transport them to the visual correction mechanism (5); The visual correction mechanism (5) comprises an adjustable material plate (501), 3CCM is fed onto the adjustable material plate (501), a visual inspection system (502) is mounted on the top of the adjustable material plate (501), the visual inspection system (502) performs visual inspection on the 3CCM, and then the driving device adjusts the position of the adjustable material plate (501) to correct the deviation of the 3CCM on the adjustable material plate (501).

4. A PEM membrane electrode five-in-one molding process according to claim 2, characterized in that: The second layer frame film feeding system (200) comprises a feeding mechanism II (20), a three-axis cutting mechanism III (21), a waste material winding mechanism III (22), a cutting knife mechanism (3) and a cylinder return mechanism (4), wherein the feeding mechanism II (20) has the same structure as the feeding mechanism I (11), the three-axis cutting mechanism III (21) has the same structure as the three-axis cutting mechanism I (1), the waste material winding mechanism III (22) has the same structure as the waste material winding mechanism I (2), and the waste material winding mechanism III (22) is equipped with a tape roll to wind up the frame protection film on the second layer frame film roll; The cutting mechanism (3) comprises a cutting frame (301) and a cutting knife (302) arranged at the top of the cutting frame (301); the cutting knife (302) is driven to rise and fall by a cutting cylinder (303) fixed at the top of the cutting frame (301) to cut the second layer of frame film roll into sheets; The cylinder alignment mechanism (4) comprises a profiling plate (401) and eight alignment cylinders (402) arranged outside the profiling plate (401), with two alignment cylinders (402) forming a group. The profiling plate (401) has the same size as the second layer of frame film material. The second layer of frame film material is placed inside the profiling plate (401). The four groups of alignment cylinders (402) respectively support the four sides of the profiling plate (401), thereby indirectly achieving the positioning of the second layer of frame film material.

5. A PEM membrane electrode five-in-one molding process according to claim 1, characterized in that: The roller-pressing laminating mechanism (13) comprises a flip plate (132) which is arranged at one end of a roller-pressing frame (131) and is capable of flipping and moving; a roller-pressing heating roller (133) is arranged at the other end of the roller-pressing frame (131); the roller-pressing heating roller (133) is driven to move by a motor screw transmission assembly (134); clamping mechanisms (135) are arranged on both sides of the roller-pressing frame (131); and the roller-pressing heating roller (133) and the motor screw transmission assembly (134) are driven to rise and fall by a lifting assembly (136) at the bottom; The two ends of the first layer frame film roll are clamped by two sets of clamping mechanisms (135), and the flip plate (132) flips and transports the 3CCM or the second layer frame film sheet to the waiting bonding position, and then the lifting component (136) drives the roller pressing and heating roller (133) to move up to the waiting bonding position, and the motor screw transmission component (134) drives the roller pressing and heating roller (133) to move, so as to roll-press and bond the first layer frame film and the 3CCM, and the second layer frame film sheet and the 3CCM.

6. A PEM membrane electrode five-in-one molding process according to claim 1, characterized in that: The active feeding mechanism (14) comprises an active roller (142) and a driven roller (143) arranged in a feeding frame (141); the driven roller (143) is arranged on the top of the active roller (142); the active roller (142) is driven to rotate by a feeding motor (144) on the feeding frame (141); and the driven roller (143) is driven to rise and fall by a feeding cylinder (145) fixed to the top of the feeding frame (141); the active roller (142) rotates continuously, and the feeding cylinder (145) drives the driven roller (143) to descend and press the laminated frame film roll, thereby utilizing friction to drive the frame film roll to be transported; The heating and pressure-maintaining mechanism (9) comprises a feed roller (902) and an electromagnetic heating roller (903) arranged in a fixed frame (901); the electromagnetic heating roller (903) is arranged on the top of the feed roller (902); the feed roller (902) is driven to rotate by a feed motor (904) on the fixed frame (901); and the electromagnetic heating roller (903) is driven to rise and fall by an electric cylinder (905) fixed on the top of the fixed frame (901); the electromagnetic heating roller (903) is driven to descend by the electric cylinder (905), so that the feed roller (902) and the electromagnetic heating roller (903) press the PEM membrane electrode semi-finished product together, so that the fit is more complete.

7. A PEM membrane electrode five-in-one molding process according to claim 1, characterized in that: The adhesive tape winding mechanism (15) comprises a coiling frame (151), wherein a guide roller II (152) and a pressure roller (153) arranged on the top of the guide roller II (152) are rotatably arranged in the coiling frame (151), a winding roller II (154) is arranged on the top of the pressure roller (153), and the winding roller II (154) is driven to rotate by a coiling motor (155) installed on the coiling frame (151), and the coiling frame (151) is also provided with an adhesive tape winding roller II (156) and a coiling guide roller (157), and the adhesive tape winding roller II (156) and the coiling guide roller (157) are respectively arranged on both sides of the pressure roller (153); The tape roll is sleeved on the tape roll roller II (156), and one end of the tape roll is wound around the pressure roller (153) and the roll guide roller (157) and then fixed on the winding roll II (154). The bottom film of the first frame film roll carries the PEM membrane electrode semi-finished product through the guide roller II (152) and the pressure roller (153), and the tape roll is used to wind up the frame film remaining on the bottom film of the first frame film roll.

8. A PEM membrane electrode five-in-one molding process according to claim 1, characterized in that: The finished product stripping mechanism (16) comprises a feed guide roller (161) and an electrostatic rod (162) arranged on one side of the feed guide roller (161); a stripping knife (163) is arranged on the side of the electrostatic rod (162) away from the feed guide roller (161); a finished product plate (164) is arranged at the bottom of the stripping knife (163); and two bottom film guide rollers (165) distributed up and down are arranged at the bottom of the feed guide roller (161); The bottom film of the first frame film roll carries the PEM membrane electrode product around the feeding guide roller (161) and the electrostatic rod (162), and the stripping knife (163) peels the PEM membrane electrode product on the bottom film and drops it onto the finished plate (164). The bottom film passes through two bottom film guide rollers (165) and is then rolled up on the material receiving rack (7).

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