CN112223878A

CN112223878A - CCM laminating device

Info

Publication number: CN112223878A
Application number: CN202010934133.1A
Authority: CN
Inventors: 不公告发明人
Original assignee: Wuxi Lead Intelligent Equipment Co Ltd
Current assignee: Jiangsu Hydrogen Guide Intelligent Equipment Co ltd
Priority date: 2020-09-08
Filing date: 2020-09-08
Publication date: 2021-01-15
Anticipated expiration: 2040-09-08
Also published as: CN112223878B

Abstract

The invention relates to a CCM laminating device, which can firstly place a CCM component on an adsorption platform when preparing an MEA membrane electrode. The CCM component can be flatly unfolded and adsorbed and positioned on the adsorption platform. The frame may be placed on the CCM assembly using a transfer mechanism. The frame may then be compressed against the CCM assembly. In the process of attaching the CCM component to the frame, the CCM component is kept static on the adsorption platform all the time, so that the CCM component can be prevented from generating wrinkles or deformation. And, the pre-compaction face alright with the adsorption platform butt before the compression roller, so the pre-compaction piece can play the pre-shaping effect to CCM subassembly and the frame on the adsorption platform earlier to prevent to shift among the roll-in process. Meanwhile, the frame is bonded with the CCM component after being compressed, and the frame has certain rigidity and can support the CCM component, so that the CCM component can be kept stable in shape and size in the subsequent processing process, and the lamination precision of the MEA is further improved. In addition, the invention also provides an MEA stacking method.

Description

CCM laminating device

Technical Field

The invention relates to the technical field of fuel cell processing, in particular to a CCM (continuous current module) laminating device.

Background

The CCM (catalyst Coated membrane) three-in-one component is a core product prepared by MEA (membrane Electrode assemblies) membrane electrodes, and is a core component of a hydrogen fuel cell. The finished MEA is typically formed by stacking a CCM, a gas diffusion layer, and a frame. When stacking, the final performance of the finished product can be guaranteed only by requiring that certain overlapping precision is met among all the film layers.

At present, a single CCM sheet material is transferred by adopting a vacuum suction plate, and the vacuum suction plate drives the CCM to move to the upper part of the frame and then to be placed down so as to be attached to the frame. However, the CCM is easily wrinkled during the CCM pick-and-place process using the vacuum suction plate. Moreover, when the CCM is placed on the frame, the CCM may be deformed due to the stress of the CCM itself and the undulation of the frame surface. Therefore, the flatness of the CCM in the lamination process is difficult to ensure, and the lamination precision of the MEA is influenced.

Disclosure of Invention

Accordingly, it is necessary to provide a CCM bonding apparatus capable of improving the lamination accuracy of the MEA, in order to solve the problem of low lamination accuracy of the MEA.

A CCM laminating device comprising:

a base;

the adsorption platform is used for bearing and adsorbing the CCM component;

the transfer mechanism is arranged on the base and is used for placing a frame on the surface of the CCM component positioned on the adsorption platform; and

the roll pressing mechanism arranged on the base comprises an execution assembly used for executing roll pressing operation so as to press the frame and the CCM assembly on the adsorption platform tightly, the execution assembly comprises a prepressing piece and a press roll, the prepressing piece is provided with a prepressing surface, and when the execution assembly executes roll pressing operation, the prepressing surface is abutted against the surface of the adsorption platform before the press roll.

In one embodiment, the suction platform is multiple, the suction platforms can be switched between a loading station and a stacking station alternately, the transfer mechanism is used for placing the frame on the suction platform located at the stacking station, and the execution component is used for executing rolling operation on the suction platform located at the stacking station.

In one embodiment, the CCM component further comprises a frame magazine, the frame magazine is arranged on the base and is used for stacking the frames, and the transfer mechanism is used for transferring the frames from the frame magazine to the surface of the CCM component.

In one embodiment, the transfer mechanism comprises:

a traversing assembly mounted to the base;

the first lifting assembly is arranged at the driving end of the transverse moving assembly, and the transverse moving assembly can drive the first lifting assembly to move between the adsorption mechanism and the frame material box;

the suction plate is arranged at the driving end of the first lifting assembly, the first lifting assembly can drive the suction plate to lift in the direction perpendicular to the surface of the adsorption platform, and the suction plate can suck and release the frame.

In one embodiment, the rolling mechanism further comprises a second lifting assembly mounted on the base, the execution assembly is in transmission connection with a driving end of the second lifting assembly, and the second lifting assembly can drive the execution assembly to lift in a direction perpendicular to the surface of the adsorption platform.

In one embodiment, the executing assembly further comprises a supporting frame, the pressing roller and the prepressing piece are both mounted on the supporting frame, and the pressing roller is located on one side of the prepressing piece, which faces away from the prepressing face.

In one embodiment, the executing assembly further comprises a first driving member, and the first driving member is in transmission connection with the pressing roller so as to drive the pressing roller to lift in a direction perpendicular to the surface of the adsorption platform until the pressing roller abuts against the prepressing piece.

In one embodiment, the actuating assembly further includes a translation assembly and a movable plate mounted at the driving end of the translation assembly, the translation assembly can drive the movable plate to move along a direction parallel to the surface of the adsorption platform, the first driving member is mounted at the movable plate, and the pressure roller is mounted at the driving end of the first driving member.

In one embodiment, the actuating assembly further includes an air cylinder mounting plate opposite to the movable plate and fixedly disposed relative to the movable plate, and a pressure roller mounting plate disposed at a driving end of the first driving member, the first driving member is disposed on the air cylinder mounting plate, a linear bearing is disposed on the air cylinder mounting plate, the pressure roller is rotatably mounted on the pressure roller mounting plate, and a guide post penetrating through the linear bearing is disposed on the pressure roller mounting plate.

In one embodiment, the rolling mechanism further comprises:

the supporting plate is fixed on the base, and a lifting guide rail extending in a direction vertical to the surface of the adsorption platform is arranged on the supporting plate;

a lifting plate which can be arranged on the lifting guide rail in a sliding way and is in transmission connection with the driving end of the second lifting component, and the execution component is arranged on the lifting plate

When the CCM laminating device is used for preparing the MEA membrane electrode, the CCM component can be placed on the adsorption platform firstly. The CCM component can be flatly unfolded and adsorbed and positioned on the adsorption platform. The frame may be placed on the CCM assembly using a transfer mechanism. Then, the executing component of the rolling mechanism executes the rolling operation, so that the frame and the CCM component can be pressed tightly. In the process of attaching the CCM component to the frame, the CCM component is kept static on the adsorption platform all the time, so that the CCM component can be prevented from generating wrinkles or deformation. And, the pre-compaction face alright with the adsorption platform butt before the compression roller, so the pre-compaction piece can play the pre-shaping effect to CCM subassembly and the frame on the adsorption platform earlier to prevent to shift among the roll-in process. Meanwhile, the frame is bonded with the CCM component after being compressed, and the frame has certain rigidity and can support the CCM component, so that the CCM component can be kept stable in shape and size in the subsequent processing process, and the lamination precision of the MEA is further improved.

In addition, the present invention also provides an MEA stacking method comprising the steps of:

placing a CCM component on the surface of an adsorption platform, and spreading the CCM component on the surface of the adsorption platform;

placing a frame on the surface of the CCM component and aligning the frame with a preset position of the surface of the CCM;

rolling the frame until the CCM component is bonded with the frame to obtain an intermediate component;

and sequentially arranging gas diffusion layers on two sides of the middle assembly to obtain the MEA membrane electrode.

In one embodiment, the step of rolling the frame until the CCM assembly is bonded to the frame to obtain an intermediate assembly includes:

firstly, pressing and holding a gauze on the surface of the frame;

and rolling the side of the gauze, which is back to the frame, by utilizing a press roller to roll the frame.

According to the MEA laminating method, in the process of attaching the CCM assembly and the frame, the CCM assembly is kept static and unfolded on the adsorption platform all the time, so that the CCM assembly can be prevented from being wrinkled or deformed. Meanwhile, after the frame is bonded with the CCM component to obtain the intermediate component, the frame has certain rigidity, so that the support can be provided for the CCM component. When the gas diffusion layer is arranged, the CCM assembly can keep the stability of the shape and the size due to the supporting function of the frame. Therefore, the above MEA stacking method can improve the stacking accuracy of the MEA.

Drawings

In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present application, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.

FIG. 1 is a front view of a CCM laminating device in accordance with a preferred embodiment of the present invention;

FIG. 2 is a side view of the CCM applicator of FIG. 1;

FIG. 3 is a front view of a transfer mechanism in the CCM laminating apparatus shown in FIG. 1;

FIG. 4 is a top view of the transfer mechanism shown in FIG. 3;

FIG. 5 is a front view of a roller mechanism in the CCM laminating apparatus shown in FIG. 1;

FIG. 6 is a side view of the roller mechanism shown in FIG. 5;

FIG. 7 is a schematic flow chart of a preferred embodiment MEA stacking method according to the present invention;

fig. 8 is a schematic flow chart of step S203 in the MEA stacking method of fig. 7.

Detailed Description

In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein.

In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the invention and to simplify the description, and are not intended to indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and are not to be considered limiting of the invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

In the present invention, unless otherwise expressly stated or limited, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through an intermediate. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and the like as used herein are for illustrative purposes only and do not denote a unique embodiment.

The invention provides a CCM laminating device and an MEA laminating method. The CCM bonding apparatus is used for bonding a CCM (catalyst Coated membrane) assembly with a frame to obtain an intermediate assembly for preparing an mea (membrane Electrode assemblies).

The CCM component is a proton membrane coated with catalysts on two surfaces, is relatively soft and has no rigidity, and is a three-in-one structure. The surface of the proton membrane is not entirely coated with the catalyst, and the area not coated with the catalyst has a certain viscosity. The frame can be made of plastic materials and has stronger rigidity compared with the CCM component. The frame is attached to the region of the CCM component which is not coated with the catalyst, so that the middle component with a four-in-one structure is obtained. On the basis of obtaining the intermediate assembly, the other side is attached with a frame, and gas diffusion layers are formed on two sides of the CCM assembly, so that the MEA membrane electrode can be obtained.

Referring to fig. 1 and 2, a CCM laminating apparatus 10 according to a preferred embodiment of the present invention includes a base 100, an adsorption mechanism 200, a transfer mechanism 300, and a roller press mechanism 400.

The base 100 mainly serves as a support and is generally a frame structure formed of a metal material. To enhance the stability of the support, the bottom of the base 100 may be provided with widened feet. For the purpose of improving the mobility, rollers may be provided on the bottom of the base 100.

The adsorption platform 200 is used for carrying and adsorbing the CCM assembly. The adsorption platform 200 may be a platform made of stainless steel, ceramic or marble, and has high surface flatness. The adsorption platform 200 is generally a vacuum adsorption platform, and a small hole communicated with the vacuum chamber is formed on the surface of the adsorption platform. When placing the CCM components on the adsorption platform 200, the CCM components may be first spread out flat on the surface of the adsorption platform 200. Then, the vacuum chamber is activated to form a negative pressure on the surface of the adsorption platform 200, so that the CCM assembly is adsorbed on the surface of the adsorption platform 200.

As shown in fig. 1, the suction platform 200 of the present embodiment is disposed at a predetermined position below or at two sides of the base 100 by means of a guide rail, a support frame, etc., and is not directly connected to the base 100. It is understood that in other embodiments, a platform, a table, etc. may be disposed on the base 100, and the adsorption platform 200 may be disposed on the platform or the table.

The transfer mechanism 300 is mounted to the base 100 and serves to perform a transfer operation to the adsorption platform 200. The transfer operation refers to placing the frame on the surface of the CCM assembly located on the adsorption platform 200. The transfer mechanism 300 may be a robot arm, a robot arm having a suction cup attached to the end thereof, or the like, which enables frame conveyance. The transfer mechanism 300 can pick up the frame, drive the frame to move towards the adsorption platform 200, and release the frame after moving in place, so that the frame is overlapped with the CCM assembly.

The transfer mechanism 300 places the frame in alignment with the predetermined position of the CCM assembly, i.e., the area not coated with catalyst.

In this embodiment, the CCM laminating apparatus 10 further includes a frame magazine 500, the frame magazine 500 is disposed on the base 100 and is used for stacking frames, and the transferring mechanism 300 is used for transferring the frames from the frame magazine 500 to the surface of the CCM assembly. Before the lamination, a plurality of frames can be stacked in the frame material box 500 in sequence. The transfer mechanism 300 may perform the transfer operations in sequence and access one frame at a time from the frame magazine 500. Since the frame magazine 500 is fixed to the base 100, the transferring mechanism 300 can take materials conveniently.

It should be noted that in other embodiments, the transfer mechanism 300 may take materials from a magazine placed near the CCM laminating device 10.

Further, referring to fig. 3 and 4, in the embodiment, the transfer mechanism 300 includes a traverse unit 310, a first lifting unit 320, and a suction plate 330. Wherein:

the traverse assembly 310 is mounted to the base 100. The first lifting assembly 320 is mounted at the driving end of the traverse assembly 310, and the traverse assembly 310 can drive the first lifting assembly 320 to move between the adsorption mechanism 200 and the frame magazine 500. The suction plate 330 is installed at the driving end of the first lifting assembly 320, the first lifting assembly 320 can drive the suction plate 330 to lift in a direction perpendicular to the surface of the adsorption platform 200, and the suction plate 330 can suck and release the frame.

The traverse assembly 310 generally includes a traverse guide 311 and a traverse drive 312. The traverse guide 311 is fixed to the base 100 and extends from the adsorption mechanism 200 to the frame magazine 500, and the traverse member 312 may be a motor. The first elevation assembly 320 is slidably disposed on the traverse guide 311. Specifically, the first lifting assembly 320 includes a transition mounting plate 321 slidably disposed on the traverse guide 311, a transfer lifting driving member 322, and a transfer lifting plate 323. The transition mounting plate 321 is provided with a guide rail (not shown) extending in a direction perpendicular to the surface of the adsorption platform 200, and the transfer lifting plate 323 is slidably provided on the guide rail and driven by the transfer lifting driving member 322. The suction plate 330 may be a vacuum suction plate that sucks the frame by forming a negative pressure on the surface.

During the transfer operation, the traverse assembly 310 first moves the first lifting assembly 320 to the top of the frame magazine 500. Then, the first elevating assembly 320 drives the suction plate 330 to descend until contacting the frame in the frame magazine 500 and sucking the frame. Then, the first lifting assembly 320 drives the suction plate 330 to ascend, and the traverse assembly 310 drives the first lifting assembly 320 to retreat until the suction plate comes above the suction platform 200. Finally, the first lifting assembly 320 drives the suction plate 330 to descend again, until the frame adsorbed on the suction plate 330 contacts or is about to contact the CCM assembly on the surface of the adsorption plane 200, the suction plate 330 releases the frame.

The rolling mechanism 400 is mounted on the base 100. Wherein the rolling mechanism 400 includes an executing assembly 420 that executes a rolling operation. And the frame and the CCM assembly on the adsorption platform 200 can be pressed tightly by the rolling operation. The transfer mechanism 200 aligns the frame with the catalyst-uncoated region of the CCM assembly while performing the transfer operation, which has some tackiness. Thus, after being compressed by the rolling mechanism 400, the frame will be bonded to the CCM assembly.

When the CCM assembly is placed on the adsorption platform 200, the CCM assembly can be spread out flatly and adsorbed and positioned. When the transferring mechanism 300 and the rolling mechanism 400 perform the frame transferring operation and the rolling operation, the CCM assembly can be kept still on the adsorption platform 200, so that the CCM assembly can be prevented from being wrinkled or deformed. Meanwhile, the frame is bonded with the CCM component to obtain an intermediate component, and the frame with certain rigidity can support the CCM component. In the subsequent processing process, the protective action of the frame can also avoid the CCM component from deforming or wrinkling, so that the shape and the size of the CCM component are always kept stable.

Further, referring to fig. 5 and fig. 6, the actuating assembly 420 includes a pre-pressing member 422 and a pressing roller 423. The pre-pressing member 422 has a pre-pressing surface (not shown), and the pre-pressing surface abuts against the surface of the suction platform 200 before the pressing roller 423 when the executing assembly 420 performs the rolling operation.

The pre-press surface generally matches the surface of the adsorption platform 200 and may cover the surface of the adsorption platform 200. The pressing roller 423 may be a metal roller or a resin roller. Specifically, the pressing roller 423 presses the CCM assembly and the frame by rolling in a direction parallel to the surface of the adsorption platform 200.

When the rolling operation is performed, the pre-pressing surface will contact the frame and the CCM assembly on the surface of the adsorption platform 200 before the pressing roller 423. The surface area of the pre-pressing surface is large, and the frame and the CCM component can be pressed on the whole surface, so that the pre-shaping effect on the frame and the CCM component is realized before the rolling operation is executed. Thus, when the compression roller 423 rolls, the frame and the CCM component can be prevented from following, and deformation and wrinkles of the CCM component are avoided. In addition, due to the presetting function of the prepressing piece 322, dislocation between the frame and the CCM component during rolling can be prevented, and the attaching precision is further improved.

During the rolling operation, the force of the pressing roller 423 is transmitted to the frame and CCM assembly through the pre-pressing member 422. Thus, the pre-stress element 422 should be relatively soft but also have a certain rigidity. Specifically, in this embodiment, the pre-pressing member 422 may be a metal mesh or a plastic gauze. Of course, the preload member 422 may be a thin plate structure.

Referring to fig. 1 again, in the present embodiment, the suction platforms 200 are multiple, and the suction platforms 200 can be alternately switched between the loading station and the stacking station, and the transferring mechanism 300 and the rolling mechanism 400 are respectively used for performing a transferring operation and a rolling operation on the suction platform 200 located at the stacking station. That is, the transfer mechanism 300 is used to place the CCM assembly on the adsorption platform 200 located at the stacking station, and the execution assembly 420 is used to perform a rolling operation on the adsorption platform 200 located at the stacking station.

The suction platform 200 can be switched between positions by a guide rail, a driving member, and the like, so that the suction platform can be transferred between the loading station and the stacking station. As shown in fig. 2, the adsorption platform 200 can move in a horizontal direction, so that the work stations can be switched. At the feeding station, the CCM assembly can be placed on the adsorption platform 200, and an intermediate assembly obtained after the CCM assembly is bonded with the frame can be taken out from the adsorption platform 200. Of course, a blanking station may be additionally provided, and the adsorption platform 200 may be moved to the blanking station and the intermediate assembly may be taken out from the blanking station.

Optionally, when one suction platform 200 is located at the stacking station, any one of the remaining suction platforms 200 is located at the loading station. As shown in fig. 2, there are two suction platforms 200, and when one suction platform 200 is located at the stacking station, the other suction platform 200 is located at the loading station. That is, when the transferring mechanism 300 and the rolling mechanism 400 perform the transferring operation and the rolling operation, the feeding of the CCM module and the discharging of the intermediate module can be performed simultaneously, so that the production efficiency can be significantly improved.

Referring to fig. 5 and 6 again, in the present embodiment, the rolling mechanism 400 further includes a second lifting assembly 410 mounted on the base 100. Wherein:

the actuating element 420 is in driving connection with a driving end of the second lifting element 410, and the second lifting element 410 can drive the actuating element 420 to lift in a direction perpendicular to the surface of the suction platform 200.

The second lifting assembly 410 may be a power assembly such as a motor and an air cylinder, and the second lifting assembly 410 in this embodiment is a motor and a ball screw pair structure matched with the motor. When the transfer mechanism 300 performs a transfer operation, the second lifting assembly 410 drives the actuating assembly 420 to lift, thereby avoiding the position of the transfer mechanism 300. After the transfer operation is completed, the second lifting assembly 410 can drive the executing assembly 420 to descend until the executing assembly 420 descends to a proper height, and the executing assembly 420 completes the rolling operation. Therefore, the rolling operation and the transferring operation do not interfere with each other.

Further, in the present embodiment, the rolling mechanism 400 further includes a supporting plate 430 and a lifting plate 440. The support plate 430 is fixed to the base 100, and the support plate 430 is provided with a lifting rail 431 extending in a direction perpendicular to the surface of the adsorption platform 200. The lifting plate 440 is slidably disposed on the lifting rail 431, the lifting plate 440 is in transmission connection with the driving end of the second lifting assembly 410, and the actuator assembly 420 is disposed on the lifting plate 440.

The supporting plate 430 may have a metal plate-shaped structure with high rigidity, and may be fixed to the base 100 by welding, or may be integrally formed with a profile constituting the base 100. The lifting guide rails 431 are provided in two, parallel and spaced apart. Thus, the stability of the lifting plate 440 during sliding is better. The second lifting assembly 410 drives the actuating assembly 420 to lift by driving the lifting plate 440 to slide. Therefore, the stability of the lifting process of the executing assembly 420 can be improved.

In the present embodiment, the actuating assembly 420 includes a support frame 421. The pressing roller 423 and the pre-pressing member 422 are both mounted on the supporting frame 421, and the pressing roller 423 is located on a side of the pre-pressing member 422 opposite to the pre-pressing surface.

The supporting frame 421 may be a frame structure formed by splicing a plurality of parallel and spaced upright posts through transverse connecting rods. In this embodiment, the supporting frame 421 is fixed on the lifting plate 440, so as to be in transmission connection with the driving end of the second lifting assembly 410. The supporting frame 421 can drive the executing assembly 420 to integrally lift under the driving of the second lifting assembly 410.

Further, in this embodiment, the executing assembly 420 further includes a first driving element 424, and the first driving element 424 is in transmission connection with the pressing roller 423 to drive the pressing roller 423 to move up and down along a direction perpendicular to the surface of the suction platform 200 until abutting against the pre-pressing element 422.

The position between the pressing roller 423 and the pre-pressing piece 422 is adjustable, and the pressing roller 423 can be fully contacted with the pre-pressing piece 422 through the first driving piece 424, so that the pressure of the pressing roller 423 can be smoothly transmitted to the surface of the upper frame of the adsorption platform 200.

Obviously, in other embodiments, the relative position of the pressing roller 423 and the pre-pressing member 422 may be kept constant, and the pressing roller 423 is set to be in contact with the pre-pressing member 422 in the initial state.

In this embodiment, the first driving member 424 is a cylinder, and a flow control valve (not shown) is disposed on an air inlet pipeline of the cylinder. The cylinder is extended to press the pressing roller 423 against the pre-pressing member 422. Also, the air pressure of the air cylinder may be adjusted by the flow control valve, thereby changing the pressure of the pressing roller 423. So, can be according to the parameter of the CCM subassembly and the frame of treating the roll-in, adjust the pressure of compression roller 423 roll-in to make the roll-in effect better.

Still further, in the present embodiment, the performing assembly 420 further includes a moving assembly 425 and a moving plate 426 installed at a driving end of the moving assembly 425, the moving assembly 425 can drive the moving plate 426 to move along a direction parallel to the surface of the adsorption platform 200, the first driving member 424 is installed at the moving plate 426, and the pressing roller 423 is installed at the driving end of the first driving member 424.

The translation assembly 425 generally includes a traverser guide (not shown) and a traverser drive (not shown). The actuator 420 further includes a cylinder mounting plate 427 disposed opposite the movable plate 426 and fixed relative to the movable plate 426, and the first driving member 424 is disposed on the cylinder mounting plate 427. The moving plate 426 can be driven by the translating assembly 425 to move, so as to drive the first driving member 424 to move, and further drive the pressing roller 423 to roll along a direction parallel to the surface of the adsorption platform 200, thereby implementing the rolling.

Specifically, in the present embodiment, the actuating assembly 420 further includes a cylinder mounting plate 427 disposed opposite to the movable plate 426 and fixed relative to the movable plate 426, and the first driving member 424 is disposed on the cylinder mounting plate 427. In addition, the actuating assembly 420 further includes a pressure roller mounting plate 428, and the pressure roller 423 is rotatably mounted to the pressure roller mounting plate 428.

The cylinder mounting plate 427 is provided with a linear bearing 4271, and the platen mounting plate 428 is provided with a guide post 4281 passing through the linear bearing 4271. Through the cooperation of the guide column 4281 and the linear bearing 4271, the pressure roller 423 can be guided during the lifting process, so that the pressure roller 423 moves more smoothly.

In the CCM bonding apparatus 10, when the MEA membrane electrode is prepared, the CCM assembly may be first placed on the adsorption platform 200. The CCM assembly may be spread flat and suction positioned on the suction platform 200. Using the transfer mechanism 300, the bezel may be placed on the CCM assembly. Then, the rolling mechanism 400 performs a rolling operation to compress the frame and the CCM assembly. In the process of attaching the CCM assembly to the frame, the CCM assembly is always kept stationary on the adsorption platform 200, so that the CCM assembly can be prevented from being wrinkled or deformed. Moreover, the pre-pressing surface can abut against the adsorption platform 200 before the pressing roller 423, so the pre-pressing piece 422 can pre-shape the CCM assembly and the frame on the adsorption platform 200, thereby preventing displacement during the rolling process. Meanwhile, the frame is bonded with the CCM component after being compressed, and the frame has certain rigidity and can support the CCM component, so that the CCM component can be kept stable in shape and size in the subsequent processing process, and the lamination precision of the MEA is further improved.

Referring to fig. 7, the MEA stacking method according to the preferred embodiment of the present invention includes steps S201 to S204:

step S201, placing the CCM component on the surface of the adsorption platform, and enabling the CCM component to spread on the surface of the adsorption platform.

The adsorption platform can be made of stainless steel, ceramics or marble materials and has high surface flatness. The adsorption platform can be a vacuum adsorption platform, and the surface of the adsorption platform is provided with a small hole communicated with the vacuum cavity. When the CCM component is placed on the adsorption platform, the CCM component may be first spread out flat on the surface of the adsorption platform. Then, starting the vacuum cavity to form negative pressure on the surface of the adsorption platform, so that the CCM component is adsorbed on the surface of the adsorption platform. The adsorption stage may be the adsorption stage 200 shown in fig. 1 to 7.

Step S202, placing the frame on the surface of the CCM component and aligning the frame with the preset position of the CCM surface.

Specifically, the frame can be transferred by using a manipulator, a sucker and the like. The predetermined location of the CCM surface refers to the area of the surface of the CCM assembly that is not coated with catalyst. When placing the frame, it is necessary to align the frame with the areas that are not coated with catalyst.

And step S203, rolling the frame until the CCM component is bonded with the frame to obtain an intermediate component.

Specifically, a press roller may be used to roll along the surface of the frame. The catalyst-uncoated areas of the CCM assembly were somewhat tacky. Thus, after rolling, the frame will be bonded to the CCM assembly, resulting in an intermediate assembly. The middle assembly is a four-in-one structure, and the frame can be used as a support. Therefore, in the process of attaching the CCM component to the frame, the CCM component is kept static and unfolded on the adsorption platform all the time, so that the CCM component can be effectively prevented from being wrinkled or deformed.

And step S204, sequentially arranging gas diffusion layers on two sides of the middle assembly to obtain the MEA membrane electrode.

Specifically, after the intermediate assembly is obtained, a gas diffusion layer may be continuously disposed on the surface of the frame. For the preparation of the single-frame MEA membrane electrode, the middle assembly provided with one gas diffusion layer is turned over, and the other gas diffusion layer is arranged on the other side. For the preparation of the MEA membrane electrode with the double-frame structure, a second layer of frame is required to be arranged after the face is turned over.

Because the frame has certain rigidity, can provide the support to CCM subassembly. When the gas diffusion layer or the second layer frame is arranged, the CCM component can keep the stability of the shape and the size due to the supporting function of the frame, thereby improving the superposition precision of the MEA.

Referring to fig. 8, in the present embodiment, the step S203 includes steps S2031 to S2032:

step S2031, first, the pre-pressing member is pressed against the surface of the frame.

The pre-pressing member may be of metal mesh or plastic mesh construction, which is relatively flexible but also rigid. Therefore, the pressing and holding effect can be better achieved, and the pressure of the pressing roller can be better transmitted. The surface area of the pre-pressing piece is large, and the frame and the CCM component can be pressed on the whole surface generally.

And S2032, rolling the side of the pre-pressing piece, which is back to the frame, by using a press roller to roll the frame.

The press roll may be a metal roll or a resin roll. Before the rolling operation is executed, the prepressing piece plays a role in presetting the frame and the CCM component. Like this, when the compression roller rolled, can prevent frame and CCM subassembly follow-up to avoid the CCM subassembly to produce deformation and fold. In addition, due to the presetting function of the prepressing piece, dislocation between the frame and the CCM assembly during rolling can be prevented, and therefore the laminating precision of the MEA is further improved.

The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.

Claims

1. A CCM laminating device, comprising:

a base;

the adsorption platform is used for bearing and adsorbing the CCM component;

2. The CCM laminating device of claim 1 wherein the suction platform is multiple, and the suction platforms are alternately switched between a loading station and a stacking station, the transfer mechanism is configured to place the frame on the suction platform at the stacking station, and the execution assembly is configured to perform a rolling operation on the suction platform at the stacking station.

3. The CCM laminating device of claim 1 further comprising a frame magazine disposed on the base and configured to stack the frames, wherein the transfer mechanism is configured to transfer the frames from the frame magazine to the surface of the CCM assembly.

4. The CCM laminating device of claim 3, wherein the transfer mechanism comprises:

a traversing assembly mounted to the base;

5. The CCM laminating device of claim 1, wherein the rolling mechanism further comprises a second lifting assembly mounted to the base, the actuating assembly is in driving connection with a driving end of the second lifting assembly, and the second lifting assembly can drive the actuating assembly to lift in a direction perpendicular to the surface of the adsorption platform.

6. The CCM laminating device of claim 1 wherein the actuating assembly further comprises a support frame, the pressing roller and the pre-pressing member are both mounted on the support frame, and the pressing roller is located on a side of the pre-pressing member facing away from the pre-pressing surface.

7. The CCM laminating device of claim 6, wherein the actuating assembly further comprises a first driving member, and the first driving member is in transmission connection with the pressing roller to drive the pressing roller to ascend and descend in a direction perpendicular to the surface of the adsorption platform until the pressing roller abuts against the pre-pressing member.

8. The CCM laminating device of claim 7, wherein the actuating assembly further comprises a translation assembly and a movable plate mounted at a driving end of the translation assembly, the translation assembly can drive the movable plate to move in a direction parallel to the surface of the adsorption platform, the first driving member is mounted at the movable plate, and the pressure roller is mounted at the driving end of the first driving member.

9. The CCM laminating device of claim 8, wherein the actuator assembly further comprises an air cylinder mounting plate opposite to and fixed relative to the movable plate, and a pressure roller mounting plate disposed at a driving end of the first driving member, wherein the first driving member is disposed on the air cylinder mounting plate, a linear bearing is disposed on the air cylinder mounting plate, the pressure roller is rotatably mounted on the pressure roller mounting plate, and a guide post penetrating through the linear bearing is disposed on the pressure roller mounting plate.

10. The CCM laminating device of claim 5, wherein the roller mechanism further comprises:

the lifting plate is slidably arranged on the lifting guide rail, the lifting plate is in transmission connection with the driving end of the second lifting assembly, and the execution assembly is arranged on the lifting plate.