CCM transfer printing equipment

Abstract

The utility model relates to CCM transfer printing equipment which comprises a rolling device, a preheating device and a cooling device. The proton exchange membrane and the transfer printing membrane are preheated in the preheating channel and then enter the transfer printing channel, and a catalyst layer on the transfer printing membrane is transferred to the proton exchange membrane under the cooperation of the first working roller and the second working roller, so that the CCM assembly is obtained; the CCM assembly output by the rolling device is borne on the first cooling plate and is pressed and cooled through cooperation of the second cooling plate and the first cooling plate. By preheating the proton exchange membrane and the transfer printing membrane, stress residue after rolling can be remarkably reduced, so that warping of the CCM assembly is avoided. And the CCM assembly is clamped by the first cooling plate and the second cooling plate in the cooling process, so that uniform pressure and cooling speed can be provided for the CCM assembly, and the CCM assembly is not easy to wrinkle or warp in the cooling process. Therefore, the CCM transfer printing equipment can obviously improve the quality of the large-size CCM assembly.

Description

Technical Field

[0001] This utility model relates to the field of hydrogen fuel cell and electrolyzer technology, and in particular to a CCM transfer device. Background Technology

[0002] The catalyst-coated membrane (CCM) is a core component of hydrogen fuel cells, PEM electrolyzers, and AEM electrolyzers, consisting of a proton exchange membrane and positive and negative electrode catalyst layers attached to both sides of the proton exchange membrane. Since transfer printing does not involve coating the proton exchange membrane, it effectively avoids swelling; therefore, the transfer printing method is commonly used in the field to prepare CCMs. For large-size CCM modules, the proton exchange membrane may accumulate significant stress during the rolling process, leading to warping of the resulting CCM product. Furthermore, during the cooling process after rolling, uneven cooling rates in different areas may cause wrinkles or warping in large-size CCM modules. Utility Model Content

[0003] Therefore, it is necessary to provide a CCM transfer device that can improve the quality of large-size CCM components to address the above problems.

[0004] A CCM transfer device, comprising:

[0005] The roller pressing device includes a first working roller and a second working roller, wherein the first working roller and the second working roller are arranged opposite to each other to form a transfer channel;

[0006] A preheating device is disposed upstream of the roller pressing device, the preheating device forming a preheating channel pointing towards the transfer channel; and

[0007] A cooling device is disposed downstream of the roller pressing device. The cooling device includes a first cooling plate and a second cooling plate. The first cooling plate is capable of supporting the CCM component output by the roller pressing device, and the second cooling plate is capable of pressing the CCM component onto the first cooling plate.

[0008] In one embodiment, the distance between the first work roll and the second work roll is adjustable.

[0009] In one embodiment, the preheating device includes a plurality of first pressure rollers arranged in parallel, a plurality of second pressure rollers arranged in parallel, and a driving assembly. The preheating channel is formed between the plurality of first pressure rollers and the plurality of second pressure rollers, and the driving assembly is capable of driving the plurality of first pressure rollers to rotate synchronously.

[0010] In one embodiment, the drive assembly includes a drive motor and a magnetic coupling, wherein the drive motor is connected to a plurality of first pressure rollers via the magnetic coupling.

[0011] In one embodiment, a driven gear is provided at the same end of each of the first pressure rollers, and a meshing transmission gear is provided between two adjacent driven gears, and the drive assembly is connected to one of the transmission gears.

[0012] In one embodiment, the preheating device further includes two heating blocks arranged opposite each other, each heating block having a heating element embedded therein, and a plurality of first pressure rollers and a plurality of second pressure rollers respectively installed in the contour grooves of the two heating blocks.

[0013] In one embodiment, the preheating device further includes a first fixed plate, a second fixed plate, and a lifting assembly. A plurality of first pressure rollers are mounted on the first fixed plate, and a plurality of second pressure rollers are mounted on the second fixed plate. The lifting assembly is drivenly connected to at least one of the first fixed plate and the second fixed plate, and is capable of driving the first fixed plate and the second fixed plate to move closer to or further away from each other.

[0014] In one embodiment, a bearing seat is provided on the second fixed plate, and a plurality of second pressure rollers are mounted on the second fixed plate through the bearing seat. The bearing seat is slidably mounted on the second fixed plate along the driving direction of the lifting assembly, and an elastic element is provided between the bearing seat and the second fixed plate.

[0015] In one embodiment, the elastic element is configured as a compression spring, and the preload of the compression spring is adjustable.

[0016] In one embodiment, the cooling device further includes a base plate and a fourth driving member. The first cooling plate is fixed to the base plate, and the second cooling plate is slidably mounted on the base plate in a direction perpendicular to the bearing surface of the first cooling plate. The fourth driving member is mounted on the base plate and is connected to the second cooling plate in a transmission manner, and is capable of driving the second cooling plate to move closer to or away from the first cooling plate.

[0017] In one embodiment, cooling channels are formed inside both the first cooling plate and the second cooling plate.

[0018] In one embodiment, a feeding platform is also provided upstream of the preheating device, the surface of which is formed with a guide channel pointing towards the preheating channel.

[0019] In one embodiment, a discharge device is further included, disposed between the roller pressing device and the cooling device, the discharge device being capable of conveying the CCM component output by the roller pressing device to the first cooling plate.

[0020] In the aforementioned CCM transfer equipment, the proton exchange membrane and transfer membrane are first preheated in a preheating channel, then enter the transfer channel where the catalyst layer on the transfer membrane is transferred to the proton exchange membrane under the cooperation of the first and second working rollers, thus obtaining a CCM module. The CCM module output from the rolling device is supported on the first cooling plate, and is held and cooled by the cooperation of the second and first cooling plates. By preheating the proton exchange membrane and transfer membrane, the residual stress after rolling can be significantly reduced, thereby preventing the CCM module from warping. During the cooling process, the CCM module is held by the first and second cooling plates, thus providing uniform pressure and cooling rate, making it less prone to wrinkling or warping during cooling. Therefore, the aforementioned CCM transfer equipment can significantly improve the quality of large-size CCM modules. Attached Figure Description

[0021] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0022] Figure 1 This is a top view of a CCM transfer device in one embodiment of the present invention;

[0023] Figure 2 for Figure 1 The CCM transfer device shown is a cross-sectional view along AA.

[0024] Figure 3 for Figure 1 The diagram shows the structure of the roller pressing device in the CCM transfer equipment.

[0025] Figure 4 for Figure 1 The diagram shows the structure of the preheating device in the CCM transfer equipment.

[0026] Figure 5 for Figure 4 Left side view of the preheating device shown;

[0027] Figure 6 for Figure 5 A cross-sectional view of the preheating device shown.

[0028] Figure 7 for Figure 1 The diagram shows the structure of the cooling device in the CCM transfer equipment. Detailed Implementation

[0029] To make the above-mentioned objects, features, and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a full understanding of this utility model. However, this utility model can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this utility model. Therefore, this utility model is not limited to the specific embodiments disclosed below.

[0030] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0031] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0032] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0033] In this utility model, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0034] It should be noted that when an element is referred to as being "fixed to" or "set on" another element, it can be directly on the other element or there may be an intervening element. When an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible implementation.

[0035] Please see Figure 1 and Figure 2 In one embodiment of the present invention, the CCM transfer equipment 10 includes a roller pressing device 100, a preheating device 200, and a cooling device 300.

[0036] The CCM transfer equipment 10 utilizes a proton exchange membrane and a transfer membrane for transfer, transferring the catalyst layer from the transfer membrane to the surface of the proton exchange membrane to obtain a CCM module. Specifically, the CCM transfer equipment 10 is used for sheet-to-sheet transfer, unlike roll-to-roll transfer. Both the proton exchange membrane and the transfer membrane need to be cut into sheets first, then aligned, and finally the CCM module obtained is also a sheet. The CCM transfer equipment 10 is suitable for the trial production of large-size CCM modules and is generally not used for mass production. Large-size CCM modules have a large length and width.

[0037] Please refer to the following: Figure 3 The rolling device 100 includes a first working roller 110 and a second working roller 120, which are arranged opposite to each other to form a transfer channel (not shown in the figure). The proton exchange membrane to be transferred and the transfer membrane can pass through the transfer channel and be rolled by the cooperation of the first working roller 110 and the second working roller 120 to transfer the catalyst layer on the transfer membrane to the surface of the proton exchange membrane, thereby obtaining a CCM module. The proton exchange membrane sheet and the transfer membrane sheet need to be aligned before entering the transfer channel together to achieve the transfer.

[0038] Both the first working roller 110 and the second working roller 120 can be steel rollers, or one can be a steel roller and the other a rubber roller. Optionally, the first working roller 110 and the second working roller 120 can generate heat, thereby heating the proton exchange membrane and transfer membrane while rolling, which can improve the catalyst transfer rate and improve the transfer effect. Specifically, the first working roller 110 and the second working roller 120 can be heated by magnetic induction, which has a fast heating speed and good temperature uniformity. Of course, the first working roller 110 and the second working roller 120 can also be heated by electric heating rods.

[0039] The roller pressing device 100 generally includes a first driving member 130, a second driving member 140, and a third driving member 150. The first driving member 130 and the second driving member 140 can be servo motors, and the third driving member 150 can be an electric cylinder. The first driving member 130 and the second driving member 140 are respectively connected to the first working roller 110 and the second working roller 120 for driving the first working roller 110 and the second working roller 120 to rotate independently around their axes. The third driving member 150 applies pressure to the first working roller 110, thereby pressing the proton exchange membrane and the transfer membrane passing through the transfer channel to ensure smooth transfer. To ensure uniform force on the proton exchange membrane and the transfer membrane, the third driving member 150 is provided at both ends of the first working roller 110 along its length.

[0040] A pressure sensor (not shown) can also be installed at the connection of the third drive component 150 to provide pressure feedback, thereby monitoring the pressure between the first work roller 110 and the second work roller 120 in real time, so as to facilitate the adjustment of the pressure of the third drive component 150 according to the actual processing requirements.

[0041] Furthermore, in this embodiment, the distance between the first working roller 110 and the second working roller 120 is adjustable, thereby adjusting the height of the transfer channel.

[0042] Specifically, the greater the distance between the first working roller 110 and the second working roller 120, the higher the height of the transfer channel. The distance between the first working roller 110 and the second working roller 120 refers to the distance in the direction of the line connecting their axes. The height of the transfer channel can be adjusted by moving the position of at least one of the first working roller 110 and the second working roller 120.

[0043] When the height of the transfer channel is small, the first working roller 110 and the second working roller 120 can roll the transfer film and proton exchange membrane passing through the transfer channel. However, when the height of the transfer channel increases and exceeds the sum of the thicknesses of the transfer film and the proton exchange membrane, the first working roller 110 and the second working roller 120 will not be able to roll the transfer film and the proton exchange membrane. Therefore, by periodically controlling the height of the transfer channel to increase or decrease, intermittent transfer of the proton exchange membrane can be achieved.

[0044] A preheating device 200 is located upstream of the rolling device 100, and the preheating device 200 forms a preheating channel pointing towards the transfer channel. The preheating channel allows the transfer film and proton exchange membrane to be transferred to pass through and be heated. Before entering the transfer channel, the transfer film and proton exchange membrane are preheated in the preheating channel. Because the temperature of the transfer film and proton exchange membrane increases after preheating, their yield strength decreases with increasing temperature, making them more prone to plastic deformation during rolling, thus reducing residual stress during deformation. Therefore, the CCM assembly obtained by the rolling device 100 has less residual stress, effectively preventing warping of the CCM assembly.

[0045] Please refer to the following: Figure 4 and Figure 5 In this embodiment, the preheating device 200 includes a plurality of first pressure rollers 210 arranged in parallel, a plurality of second pressure rollers 220 arranged in parallel, and a drive assembly 230. A preheating channel is formed between the plurality of first pressure rollers 210 and the plurality of second pressure rollers 220, and the drive assembly 230 can drive the plurality of first pressure rollers 210 to rotate synchronously.

[0046] Multiple first pressure rollers 210 extend along the preheating channel, i.e. Figure 5 The first pressure rollers 210 and the second pressure rollers 220 are arranged side-by-side in the left-right direction. Similarly, multiple second pressure rollers 220 are also arranged side-by-side along the extension direction of the preheating channel. Moreover, the first pressure rollers 210 and the second pressure rollers 220 are opposite each other in the vertical direction, and the transfer film and proton exchange membrane can pass between the multiple first pressure rollers 210 and the multiple second pressure rollers 220. Specifically, in this embodiment, the first pressure roller 210 is located below the second pressure roller 220. The first pressure rollers 210 and the second pressure rollers 220 can cooperate to squeeze the transfer film and proton exchange membrane passing through the preheating channel. Therefore, when the drive assembly 230 drives the multiple first pressure rollers 210 to rotate synchronously, the friction generated by the squeezing of the first pressure rollers 210 and the second pressure rollers 220 can transport the transfer film and proton exchange membrane.

[0047] Specifically, multiple first pressure rollers 210 are tangent to the same plane, and multiple second pressure rollers 220 are also tangent to the same plane, thereby ensuring smooth transfer of the transfer film and proton exchange membrane. Moreover, the multiple first pressure rollers 210 and multiple second pressure rollers 220 are arranged in a one-to-one correspondence, so that the transfer film and proton exchange membrane can be effectively flattened under the action of the first pressure rollers 210 and the second pressure rollers 220 during the process of passing through the preheating channel.

[0048] Furthermore, by controlling the speed of the drive assembly 230, a small speed difference can be maintained between the preheating device 200 and the rolling device 100. This allows the transfer film and proton exchange membrane to be subjected to a certain traction force, ensuring that the transfer film and proton exchange membrane between the preheating device 200 and the rolling device 100 can maintain a certain tension, thereby ensuring that they remain flat during the rolling process.

[0049] Furthermore, in this embodiment, the drive assembly 230 includes a drive motor 231 and a magnetic coupling 232. The drive motor 231 is connected to a plurality of first pressure rollers 210 via the magnetic coupling 232. That is, the torque of the drive motor 231 is transmitted to the plurality of first pressure rollers 210 through the magnetic coupling 232, thereby driving the plurality of first pressure rollers 210 to rotate synchronously.

[0050] The magnetic coupling 232 transmits end-face torque through two permanent magnets, and the upper limit of its transmitted torque can be set by adjusting the gap between the two permanent magnets. When this upper limit is exceeded, the magnetic coupling 232 automatically disconnects. In this way, the tension of the transfer film and proton exchange membrane can be controlled, avoiding excessive or insufficient tension of the transfer film and proton exchange membrane due to errors in the speed difference control of the drive motor 231.

[0051] Furthermore, in this embodiment, each first pressure roller 210 is provided with a driven gear 211 at the same end, and a meshing transmission gear 240 is provided between two adjacent driven gears 211, and the drive assembly 230 is connected to one of the transmission gears 240 in a transmission connection.

[0052] Specifically, each transmission gear 240 meshes with two adjacent driven gears 211, and the drive assembly 230 is connected to one of the transmission gears 240 via a synchronous belt and a synchronous pulley. When the drive assembly 230 drives one of the transmission gears 240 to rotate, that transmission gear 240 can drive all the driven gears 211 to rotate via the adjacent driven gears 211 and other transmission gears 240, ensuring that the rotation direction of the multiple driven gears 211 is consistent.

[0053] Furthermore, in this embodiment, the preheating device 200 also includes two heating blocks 250 arranged opposite to each other, each heating block 250 having a heating element 260 embedded therein, and a plurality of first pressure rollers 210 and a plurality of second pressure rollers 220 respectively installed in the contour grooves (not shown) of the two heating blocks 250.

[0054] Specifically, a gap exists between the two heating blocks 250, and arc-shaped contoured grooves are formed on their surfaces facing each other to accommodate the first pressure roller 210 or the second pressure roller 220. The first pressure roller 210 and the second pressure roller 220 are mounted in the corresponding contoured grooves and partially extend into the gap between the two heating blocks 250 to contact the transfer film and the proton exchange membrane. The heating element 260 can be a heating rod or a thermal resistor, and the heating blocks 250 can be formed of copper or other good thermal conductors. The heating element 260 can heat the heating blocks 250 to raise their temperature. Since the transfer film and the proton exchange membrane pass through the preheating channel between the two heating blocks 250, the heating blocks 250 can preheat the transfer film and the proton exchange membrane through thermal radiation.

[0055] It should be noted that in other embodiments, the heating block 250 may be omitted, and the heating element 260 may be directly installed inside the first pressure roller 210 and the second pressure roller 220.

[0056] Optionally, the lower heating block 250 has a guide portion 251 at one end facing the roller pressing device 100. This guide portion 251 is wedge-shaped and extends between the first working roller 110 and the second working roller 120. In this way, the preheated transfer film and proton exchange membrane can first reach the guide portion 251 and smoothly enter the transfer channel under the guidance of the guide portion 251.

[0057] In addition, please refer to the following: Figure 6 In this embodiment, the preheating device 200 further includes a first fixed plate 270, a second fixed plate 280, and a lifting assembly 290. A plurality of first pressure rollers 210 are installed on the first fixed plate 270, and a plurality of second pressure rollers 220 are installed on the second fixed plate 280. The lifting assembly 290 is connected to at least one of the first fixed plate 270 and the second fixed plate 280 in a transmission connection, and is capable of driving the first fixed plate 270 and the second fixed plate 280 to move closer to or further away from each other.

[0058] Specifically, the lifting assembly 290 and the second fixed plate 280 can drive the second fixed plate 280 to move relative to the first fixed plate 270, thereby causing the multiple second pressure rollers 220 to abut or separate from the multiple first pressure rollers 210. The lifting assembly 290 generally includes a clamping cylinder (not shown) and a moving guide rail (not shown). The second fixed plate 280 is mounted on the moving guide rail and can move along the moving guide rail under the drive of the clamping cylinder. Driven by the lifting assembly 290, the multiple second pressure rollers 220 and the multiple first pressure rollers 210 can clamp the proton exchange membrane and transfer membrane passing through the preheating channel, ensuring smooth delivery of the proton exchange membrane and transfer membrane.

[0059] Furthermore, in this embodiment, a bearing seat 281 is provided on the second fixed plate 280, and a plurality of second pressure rollers 220 are mounted on the second fixed plate 280 through the bearing seat 281. The bearing seat 281 is slidably mounted on the second fixed plate 280 along the driving direction of the lifting assembly 290, and an elastic member 282 is provided between the bearing seat 281 and the second fixed plate 280.

[0060] In other words, the multiple second pressure rollers 220 can float up and down with the bearing housing 281, and the elastic element 282 can provide elastic preload for the multiple second pressure rollers 220, so that the multiple second pressure rollers 220 can elastically abut against the multiple first pressure rollers 210. Therefore, when the lifting assembly 290 drives the second pressure rollers 220 to abut against the multiple first pressure rollers 210, it can play a better buffering role, and the elastic preload provided by the elastic element 282 can reliably keep the second pressure rollers 220 and the first pressure rollers 210 abutting.

[0061] Specifically, a guide sleeve 284 is provided on the bearing housing 281, and a guide shaft is provided on the second fixed plate 280. The guide sleeve 284 and the guide shaft 285 are fitted together so that the bearing housing 281 can slide relative to the second fixed plate 280. Moreover, a limit post 286 is installed at the end of the guide shaft 285 to prevent the bearing housing 281 from disengaging.

[0062] Furthermore, in this embodiment, the elastic element 282 is configured as a compression spring, and the preload of the compression spring is adjustable. By adjusting the preload of the compression spring, the magnitude of the preload force can be adjusted, thereby allowing the pressure between the second pressure roller 220 and the first pressure roller 210 to be adjusted as needed.

[0063] Specifically, the second fixing plate 280 has a threaded hole (not shown) at the position corresponding to the compression spring for installing the clamping screw 283. The clamping screw 283 can be screwed in and out, thereby adjusting the preload of the compression spring.

[0064] Please refer to it again. Figure 2 See also Figure 7 The cooling device 300 is located downstream of the roller pressing device 100. The cooling device 300 includes a first cooling plate 310 and a second cooling plate 320. The first cooling plate 310 can carry the CCM assembly output by the roller pressing device 100, and the second cooling plate 320 can press the CCM assembly onto the first cooling plate 310.

[0065] Both the first cooling plate 310 and the second cooling plate 320 can exchange heat with the CCM module they hold, thereby cooling the CCM module. Specifically, in this embodiment, both the first cooling plate 310 and the second cooling plate 320 have cooling channels (not shown). Cooling medium, such as cooling water, can flow through the cooling channels under the drive of an external circulation system (not shown), thereby cooling the CCM module.

[0066] During the cooling process of the CCM module, it is clamped by the first cooling plate 310 and the second cooling plate 320, thus providing uniform pressure to the CCM module. Furthermore, the first cooling plate 310 and the second cooling plate 320 are in full contact with both sides of the CCM module, enabling uniform heat exchange with all areas of the CCM module, thus allowing all areas of the CCM module to cool at a uniform cooling rate. Therefore, the CCM module is less prone to wrinkling or warping during the cooling process.

[0067] Specifically, in this embodiment, the cooling device 300 further includes a base plate 330 and a fourth driving member 240. The first cooling plate 310 is fixed to the base plate 330, and the second cooling plate 320 is slidably mounted on the base plate 330 in a direction perpendicular to the bearing surface of the first cooling plate 310. The fourth driving member 240 is mounted on the base plate 330 and is connected to the second cooling plate 320 in a transmission manner, and can drive the second cooling plate 320 to move closer to or away from the first cooling plate 310.

[0068] Before the CCM component enters the cooling device 300, the fourth drive member 240 first drives the second cooling plate 320 away from the first cooling plate 310; after the CCM component enters the cooling device 300, the fourth drive member 240 then drives the second cooling plate 320 closer to the first cooling plate 310 until the CCM component supported on the first cooling plate 310 is clamped.

[0069] Specifically, the fourth drive component 240 can be a cylinder. In order to keep the second cooling plate 320 stable during movement, a guide structure 350, such as a linear bearing, is also provided on the base plate 330, and the second cooling plate 320 is slidably mounted on the base plate 330 through the guide structure 350.

[0070] Please refer to it again. Figure 1 and Figure 2 In this embodiment, the CCM transfer device 10 also includes a loading platform 400 disposed upstream of the preheating device 200, and the surface of the loading platform 400 is formed with a guide channel (not shown in the figure) pointing to the preheating channel.

[0071] Specifically, the surface of the feeding platform 400 is provided with guide blocks 410, which form a guide channel. When transfer printing is required, the transfer film and proton exchange membrane are first stacked and aligned on the surface of the feeding platform 400; then, the operator pushes them into the preheating channel along the guide channel. In this way, feeding can be easily achieved, meeting the requirement that a single person can complete the transfer operation.

[0072] In addition, in this embodiment, the CCM transfer equipment 10 also includes a discharge device 500 disposed between the roller pressing device 100 and the cooling device 300, which can transport the CCM components output by the roller pressing device 100 to the first cooling plate 310.

[0073] The discharge device 500 provides driving force to the CCM components output from the roller pressing device 100, enabling them to smoothly enter the cooling device 300. Specifically, the discharge device 500 can employ paired conveyor rollers capable of clamping the CCM components output from the roller pressing device 100 and conveying them to the cooling device 300. The discharge device 500 can also adopt a structure similar to the preheating device 200, but without the need for the heating element 260, and the heating element 260 can be replaced with a cooling channel through which the cooling medium flows, thereby also cooling the CCM components.

[0074] Similarly, by controlling the speed of the discharge device 500, a small speed difference can be maintained between the discharge device 500 and the roller pressing device 100. In this way, the transfer film and proton exchange membrane can be subjected to a certain traction force, ensuring that the CCM components between the discharge device 500 and the roller pressing device 100 can maintain a certain tension, thereby ensuring that they enter the cooling device 300 in a relatively flat state.

[0075] In the aforementioned CCM transfer equipment 10, the proton exchange membrane and the transfer membrane are first preheated in a preheating channel, then enter the transfer channel where the catalyst layer on the transfer membrane is transferred to the proton exchange membrane with the cooperation of the first working roller 110 and the second working roller 120, thereby obtaining a CCM module. The CCM module output from the rolling device 100 is supported on the first cooling plate 310, and is held and cooled by the cooperation of the second cooling plate 320 and the first cooling plate 310. By preheating the proton exchange membrane and the transfer membrane, the residual stress after rolling can be significantly reduced, thereby preventing the CCM module from warping. During the cooling process, the CCM module is held by the first cooling plate 310 and the second cooling plate, thus providing uniform pressure and cooling speed to the CCM module, making it less prone to wrinkling or warping during cooling. Therefore, the aforementioned CCM transfer equipment 10 can significantly improve the quality of large-size CCM modules.

[0076] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0077] The embodiments described above are merely illustrative of several implementations of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.

Claims

1. A CCM transfer apparatus, characterized by, The application relates to a roll pressing device, which comprises a first working roller and a second working roller, the first working roller and the second working roller are oppositely arranged to form a transfer channel; a preheating device is arranged upstream of the roll pressing device, the preheating device is formed with a preheating channel, and the preheating channel is directed to the transfer channel; and a cooling device is arranged downstream of the roll pressing device, the cooling device comprises a first cooling plate and a second cooling plate, the first cooling plate can carry a CCM assembly output by the roll pressing device, and the second cooling plate can press and hold the CCM assembly on the first cooling plate. The distance between the first working roller and the second working roller is adjustable. The preheating device comprises a plurality of first pressing rollers arranged in parallel, a plurality of second pressing rollers arranged in parallel and a driving assembly, the preheating channel is formed between the plurality of first pressing rollers and the plurality of second pressing rollers, and the driving assembly can drive the plurality of first pressing rollers to rotate synchronously. The driving assembly comprises a driving motor and a magnetic coupling, the driving motor is in transmission connection with the plurality of first pressing rollers through the magnetic coupling. The same end of each first pressing roller is provided with a driven gear, adjacent two driven gears are provided with transmission gears in engagement, and the driving assembly is in transmission connection with one of the transmission gears.

2. The CCM transfer apparatus of claim 1, wherein, The preheating device further comprises two heating blocks arranged oppositely, each heating block is provided with a heating element embedded therein, and the plurality of first pressing rollers and the plurality of second pressing rollers are respectively installed in profiled grooves of the two heating blocks.

3. The CCM transfer apparatus of claim 1, wherein, The preheating device further comprises a first fixed plate, a second fixed plate and a lifting assembly, the plurality of first pressing rollers are installed on the first fixed plate, the plurality of second pressing rollers are installed on the second fixed plate, the lifting assembly is in transmission connection with at least one of the first fixed plate and the second fixed plate, and the lifting assembly can drive the first fixed plate and the second fixed plate to move close to or away from each other.

4. The CCM transfer apparatus of claim 3, wherein, The second fixed plate is provided with a bearing seat, the plurality of second pressing rollers are installed on the second fixed plate through the bearing seat, the bearing seat is slidably installed on the second fixed plate along the driving direction of the lifting assembly, and an elastic element is arranged between the bearing seat and the second fixed plate.

5. The CCM transfer apparatus of claim 3, wherein, The elastic element is a compression spring, and the pre-tightening degree of the compression spring is adjustable.

6. The CCM transfer apparatus of claim 3, wherein, The cooling device further comprises a bottom plate and a fourth driving element, the first cooling plate is fixed on the bottom plate, the second cooling plate is slidably installed on the bottom plate in a direction perpendicular to the bearing surface of the first cooling plate, the fourth driving element is installed on the bottom plate and in transmission connection with the second cooling plate, and the fourth driving element can drive the second cooling plate to move close to or away from the first cooling plate.

7. The CCM transfer apparatus of claim 3, wherein The first cooling plate and the second cooling plate are both formed with cooling flow channels.

8. The CCM transfer apparatus of claim 7, wherein, An upper feeding platform is arranged upstream of the preheating device, and the surface of the upper feeding platform is formed with a guide channel directed to the preheating channel.

9. The CCM transfer apparatus of claim 8, wherein, A discharging device is arranged between the roll pressing device and the cooling device, and the discharging device can convey the CCM assembly output by the roll pressing device to the first cooling plate.

10. The CCM transfer apparatus of claim 1, wherein, ​ 11. The CCM transfer apparatus of claim 1, wherein, ​ 12. The CCM transfer apparatus according to any one of claims 1 to 11, characterized by, ​ 13. The CCM transfer apparatus according to any one of claims 1 to 11, characterized by, ​

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