CN219497850U - Membrane electrode preparation system - Google Patents

Abstract

The application relates to a membrane electrode preparation system, comprising: the carbon paper dispensing and transferring mechanism comprises a first dispensing and transferring mechanism and a second dispensing and transferring mechanism, wherein the two mechanisms comprise a dispensing mechanism and a conveying belt, the conveying belt is respectively used for conveying first carbon paper and second carbon paper, and the dispensing mechanism is respectively used for dispensing the first carbon paper and the second carbon paper; the carbon paper turnover mechanism is arranged at the downstream of the first adhesive transferring mechanism and is used for turning over the first carbon paper; the carbon paper robot carrying mechanism is arranged at the downstream of the carbon paper overturning mechanism and is used for attaching the first carbon paper after overturning to the middle core layer material belt; the carbon paper deviation correcting and positioning platform is arranged at the downstream of the second dispensing and transferring mechanism and is used for positioning the second carbon paper; the hot pressing mechanism is arranged at the downstream of the carbon paper deviation correcting and positioning platform and is used for hot pressing the middle core layer material belt and the carbon paper at two sides. The application can directly finish dispensing carbon paper on the conveying belt, and the hot pressing cut pieces are performed after the film electrodes are pre-attached, so that the structure is simple, and the falling of the carbon paper can be avoided.

Description

Membrane electrode preparation system

Technical Field

The utility model relates to the technical field of batteries, in particular to a membrane electrode preparation system.

Background

The MEA (membrane electrode) is a core component of a hydrogen fuel cell, and is generally composed of a five-in-one middle core layer (CCM and frames on both sides of the CCM) and two layers of carbon paper on both sides of the upper and lower surfaces of the middle core layer.

In the existing production process, cathode and anode carbon paper is sheet stock supplied materials, a middle core layer is continuous coiled materials, after dispensing is finished on the cathode and anode carbon paper respectively, sheet cutting is carried out after belt conveying, transferring module carrying and sheet stock is attached to a coiled material alignment mechanism, and then the sheet is pressed by a press to meet the process requirements.

Because the sheet material is to coil stock counterpoint mechanism laminating time, use the manipulator to laminate in advance the action, the effort is less, follow-up stretching strap cut-parts and transport cut-off sheet material can appear the circumstances that the great probability dropped GDL (carbon paper) to the in-process of press, laminate in advance that the manipulator accomplished promptly can not make GDL laminate with middle sandwich layer firmly for the loss is more, and the failure rate rises.

Therefore, in order to ensure the qualification rate of the web production, a new lamination process is necessary to be designed to realize the preparation of the membrane electrode.

Disclosure of Invention

The present disclosure provides a membrane electrode assembly system to improve the yield of web production.

According to the present disclosure, there is provided a membrane electrode preparation system comprising:

the carbon paper dispensing and transferring mechanism comprises a first dispensing and transferring mechanism and a second dispensing and transferring mechanism, wherein the first dispensing and transferring mechanism and the second dispensing and transferring mechanism respectively comprise a dispensing mechanism and a conveying belt, the conveying belts of the first dispensing and transferring mechanism and the second dispensing and transferring mechanism are respectively used for conveying first carbon paper and second carbon paper, and the dispensing mechanisms of the first dispensing and transferring mechanism and the second dispensing and transferring mechanism are respectively used for dispensing the first carbon paper and the second carbon paper on the conveying belt;

the carbon paper turnover mechanism is arranged at the downstream of the first dispensing transfer mechanism and is used for turning over the dispensed first carbon paper;

the carbon paper robot carrying mechanism is arranged at the downstream of the carbon paper overturning mechanism and is used for attaching the turned first carbon paper to the upper surface of the middle core layer material belt;

the carbon paper deviation correcting and positioning platform is arranged at the downstream of the second dispensing and transferring mechanism and is used for positioning the second carbon paper after dispensing so that the second carbon paper is aligned to the lower part of the middle core layer material belt and is attached;

and the hot pressing mechanism is arranged at the downstream of the carbon paper deviation rectifying and positioning platform and is used for hot pressing the middle core layer material belt and the first carbon paper and the second carbon paper at two sides.

According to an example embodiment of the present application, the system further includes a carbon paper handling mechanism, configured to transfer the second carbon paper after dispensing on the conveying belt to the carbon paper deviation rectifying and positioning platform.

According to this application example embodiment, carbon paper transport mechanism is including the first driving motor, horizontal transport module, lifting module and the first suction plate that connect gradually, first suction plate is used for adsorbing the second carbon paper after the point is glued, lifting module is used for right first suction plate carries out vertical direction and removes, first driving motor drive horizontal transport module is right lifting module and first suction plate carry out horizontal direction and remove.

According to an example embodiment of the present application, the system further includes a web cutting mechanism for cutting the membrane electrode on the intermediate core web, on which the first carbon paper and the second carbon paper are attached, to a predetermined size.

According to this application example embodiment, the tablet cutting mechanism includes presses area structure, cutter mechanism, cutter removal module, stretching strap mechanism and stretching strap module, press the area structure be used for with middle sandwich layer material area compresses tightly, cutter removal module is used for the drive cutter mechanism removes, stretching strap mechanism is used for taut the tip in middle sandwich layer material area, the stretching strap module is used for the drive stretching strap mechanism is followed middle sandwich layer material area direction of delivery removes.

According to the exemplary embodiment of the application, the first dispensing transfer mechanism and the second dispensing transfer mechanism are arranged in parallel.

According to the embodiment of the application, the carbon paper turnover mechanism comprises a second driving motor, a transfer module, a rotary cylinder and a second suction plate which are sequentially connected, wherein the rotary cylinder is used for rotating the second suction plate, and the second driving motor drives the transfer module to move the rotary cylinder and the second suction plate.

According to the example embodiment of the application, the carbon paper robot handling mechanism includes a robot body and a third suction plate, the third suction plate is used for adsorbing the first carbon paper on the carbon paper turning mechanism, the robot body is used for driving the third suction plate to move so as to suck the first carbon paper from the carbon paper turning mechanism, and the first carbon paper is placed on the middle core layer material belt.

According to this application example embodiment, carbon paper location platform of rectifying is including the X direction that connects gradually removes module, Y direction and removes the module, rotatory removal module and fourth suction plate, the fourth suction plate is used for adsorbing second carbon paper, rotatory removal module is used for right the rotation of horizontal plane is carried out to fourth suction plate and absorptive second carbon paper, X direction removes module and Y direction and removes module 410 and be used for right respectively fourth suction plate and absorptive second carbon paper carry out the removal of X direction and Y direction.

According to the embodiment of the application, the carbon paper deviation rectifying and positioning platform further comprises a CCD assembly, and the CCD assembly is used for acquiring the position of the middle core layer material belt.

According to the scheme, the carbon paper can be directly dispensed on the conveying belt, the multi-layer membrane electrode is finished to be pre-attached, then hot pressing and cutting are carried out, the production mechanism can be simplified, the situation that the carbon paper falls due to unstable pre-attachment in the tape feeding process can be reduced, the reject ratio of production is reduced, and the cost loss caused by the falling damage of the carbon paper is avoided.

For a further understanding of the nature and the technical aspects of the present utility model, reference should be made to the following detailed description of the utility model and the accompanying drawings, which are included to illustrate and not to limit the scope of the utility model.

Drawings

Embodiments of the present disclosure are described in detail below with reference to the accompanying drawings. The accompanying drawings, which are incorporated in and constitute a part of this disclosure, are included to provide a further understanding of the disclosure. The exemplary embodiments of the present disclosure and their description are for the purpose of explaining the present disclosure and are not to be construed as unduly limiting the present disclosure. In the accompanying drawings:

FIG. 1 illustrates an overall top view structural schematic of a membrane electrode preparation system according to an example embodiment of the present application;

FIG. 2 shows a schematic cross-sectional structure of a seven-layer membrane electrode according to an example embodiment of the present application;

fig. 3 shows a schematic structural diagram of a carbon paper dispensing transfer mechanism according to an example embodiment of the present application;

FIG. 4 shows a schematic diagram of a carbon paper handling mechanism according to an example embodiment of the present application;

FIG. 5A shows a schematic top view of a carbon paper turning mechanism according to an example embodiment of the present application;

FIG. 5B illustrates a schematic side view of a carbon paper turning mechanism according to an example embodiment of the present application;

fig. 6 shows a schematic structural view of a carbon paper robotic handling mechanism according to an example embodiment of the present application;

FIG. 7 shows a schematic structural diagram of a carbon paper deviation correcting and positioning platform according to an example embodiment of the present application;

fig. 8 shows a schematic structural view of a hot press mechanism according to an exemplary embodiment of the present application;

fig. 9 shows a schematic structural view of a web cutting mechanism according to an exemplary embodiment of the present application.

List of reference numerals:

second suction plate of 10-carbon paper dispensing transfer mechanism 230

10A first dispensing transfer mechanism 30 carbon paper robot conveying mechanism

10B second dispensing transfer mechanism 300 robot body

100 point gum machine 310 third suction plate

110 conveyer belt 40 carbon paper deviation rectifying and positioning platform

400X direction moving module of 20 carbon paper turnover mechanism

200 second driving motor 410Y direction moving module

210 transfer module 420 rotary moving module

220 rotary cylinder 430 fourth suction plate

50 hot pressing mechanism

500 press electric cylinder 70 carbon paper carrying mechanism

510 pressfitting major structure 700 first driving motor

60 horizontal transport module of tablet cutting mechanism 710

600 press belt structure 720 lifting module

610 cutter mechanism 730 first suction plate

620 first carbon paper of cutter moving module A

630 drawstring mechanism B second carbon paper

640 draw tape module Z middle core layer material tape

Detailed Description

Example embodiments will now be described more fully with reference to the accompanying drawings. However, the exemplary embodiments can be embodied in many forms and should not be construed as limited to the embodiments set forth herein; rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the concept of the example embodiments to those skilled in the art. The same reference numerals in the drawings denote the same or similar parts, and thus a repetitive description thereof will be omitted.

The described features, structures, or characteristics may be combined in any suitable manner in one or more embodiments. In the following description, numerous specific details are provided to give a thorough understanding of embodiments of the disclosure. One skilled in the relevant art will recognize, however, that the disclosed aspects may be practiced without one or more of the specific details, or with other methods, components, materials, apparatus, etc. In these instances, well-known structures, methods, devices, implementations, materials, or operations are not shown or described in detail.

The flow diagrams depicted in the figures are exemplary only, and do not necessarily include all of the elements and operations/steps, nor must they be performed in the order described. For example, some operations/steps may be decomposed, and some operations/steps may be combined or partially combined, so that the order of actual execution may be changed according to actual situations.

The terms "first," "second," "left," "right," and the like in the description and in the claims of this application and in the above-described figures, are used for distinguishing between different objects and not necessarily for describing a particular sequential or chronological order. Furthermore, the terms "comprise" and "have," as well as any variations thereof, are intended to cover a non-exclusive inclusion. For example, a process, method, system, article, or apparatus that comprises a list of steps or elements is not limited to only those listed steps or elements but may include other steps or elements not listed or inherent to such process, method, article, or apparatus.

Fig. 1 shows a schematic structural diagram of a membrane electrode preparation system according to an embodiment of the present application.

As shown in fig. 1, the present application provides a multilayer membrane electrode preparation system. The multi-layer membrane electrode is composed of a middle core layer material belt and carbon paper attached to the surfaces of two sides, and the section of the attached membrane electrode is shown in figure 2. Fig. 2 is a schematic diagram of a seven-layer membrane structure of the MEA, which is composed of cathode and anode carbon paper (i.e., first carbon paper a and second carbon paper B) and a five-in-one middle core layer material tape Z.

The membrane electrode preparation system mainly comprises: the carbon paper dispensing and transferring mechanism 10, the carbon paper overturning mechanism 20, the carbon paper robot carrying mechanism 30, the carbon paper deviation correcting and positioning platform 40 and the hot pressing mechanism 50 can finish the alignment lamination and hot pressing of the first carbon paper A, the second carbon paper B and the five-in-one middle core layer material belt Z. A web cutting mechanism 60 can be arranged downstream of the production line, and the web after hot pressing and lamination can be cut into sheets stably. According to the scheme, the carbon paper can be directly dispensed on the conveying belt, the multi-layer membrane electrode is finished to be pre-attached, then hot pressing and cutting are carried out, the production mechanism can be simplified, the situation that the carbon paper falls due to unstable pre-attachment in the process of feeding can be reduced, the reject ratio of production is reduced, and the cost loss caused by the falling damage of the carbon paper is avoided.

According to one embodiment of the application, as shown in fig. 1 and 3, the carbon paper dispensing and transferring mechanism 10 includes a first dispensing and transferring mechanism 10A and a second dispensing and transferring mechanism 10B, the first dispensing and transferring mechanism 10A and the second dispensing and transferring mechanism 10B each include a dispensing and transferring mechanism 100 and a conveying belt 110, the conveying belts 110 of the first dispensing and transferring mechanism 10A and the second dispensing and transferring mechanism 10B are respectively used for conveying the first carbon paper a and the second carbon paper B, and the dispensing and transferring mechanisms 100 of the first dispensing and transferring mechanism 10A and the second dispensing and transferring mechanism 10B are respectively used for dripping and coating the adhesive on the surfaces of the first carbon paper a and the second carbon paper B. Wherein vacuum suction may be established on the conveyor belt 110.

According to one embodiment of the present application, the dispensing mechanism 100 mainly includes a dispensing valve, a motor and a triaxial module, wherein the motor is used for driving the triaxial module to precisely position the dispensing position on the carbon paper, the triaxial module connects the dispensing valve, and drives the dispensing valve to dispense at the accurate position. The dispensing mechanism 100 may be implemented by using the prior art, and will not be described herein.

A conveyor belt 110 may be provided below the dispensing valve of the dispensing mechanism 100, the conveyor belt 110 being used to convey the sheet of carbon paper.

According to one embodiment of the present application, as shown in fig. 1, the first dispensing transfer mechanism 10A and the second dispensing transfer mechanism 10B are juxtaposed.

Because the upper surface and the lower surface of the middle core layer are respectively adhered with a layer of carbon paper, one layer of the glued two layers of carbon paper can be directly adhered to the lower surface of the middle core layer material belt Z, and the other layer of the glued two layers of carbon paper is required to be turned over firstly and then adhered to the upper surface of the middle core layer material belt Z.

In the two parallel dispensing conveyor lines, the conveyor belt 110 on one side, such as the right side in fig. 1, can directly convey the second carbon paper B after dispensing to the carbon paper positioning position, so that the carbon paper is attached to the lower surface of the middle core layer material belt later, and other mechanisms can be provided to take the second carbon paper B from the conveyor belt 110 and then transfer the carbon paper to the carbon paper positioning position.

According to an embodiment of the present application, as shown in fig. 4, a schematic diagram of a carbon paper handling mechanism 70 is shown, where the carbon paper handling mechanism 70 is configured to transfer a second carbon paper B after dispensing on a conveyor belt 110 to the carbon paper deviation correcting and positioning platform 40. The carbon paper transporting mechanism 70 mainly includes a first driving motor 700, a horizontal transporting module 710, a lifting module 720 and a first suction plate 730, which are sequentially connected. The first suction plate 730 is used for adsorbing the second carbon paper B after dispensing, and the horizontal handling module 710 and the lifting module 720 are used for driving the first suction plate 730 to move in the horizontal and vertical directions, so that the first suction plate 730 can move the adsorbed second carbon paper B to the carbon paper deviation rectifying and positioning platform 40. The first driving motor 700 drives the horizontal transfer module 710 to horizontally move the lifting module 720 and the first suction plate 730.

In two parallel dispensing conveyor lines, for example, the first carbon paper a after dispensing on the left side of fig. 1 needs to be attached to the upper surface of the intermediate core layer material belt Z, so that a mechanism is needed to turn over the first carbon paper a with the dispensed upper surface and attach it to the upper surface of the intermediate core layer material belt Z.

According to an embodiment of the present application, as shown in fig. 5A and 5B, a schematic diagram of a carbon paper turning mechanism 20 is shown, where the carbon paper turning mechanism 20 is used for turning over a first carbon paper a after dispensing, and the carbon paper turning mechanism 20 mainly includes a second driving motor 200, a transfer module 210, a rotary cylinder 220 and a second suction plate 230 that are sequentially connected. The second driving motor 200 drives the transfer module 210 to move the second suction plate 230, and the rotating cylinder 220 is used for rotating the second suction plate 230, so that the first carbon paper a adsorbed by the second suction plate 230 turns over, i.e. the upward side of the first carbon paper a glue turns over to be downward.

According to one embodiment of the present application, as shown in fig. 6, a schematic diagram of a carbon paper robot handling mechanism 30, the carbon paper robot handling mechanism 30 mainly includes a robot body 300 and a third suction plate 310. The carbon paper robot handling mechanism 30 is used for attaching the turned first carbon paper a to the upper surface of the middle core material tape Z. The third suction plate 310 is used for adsorbing the first carbon paper a on the carbon paper turning mechanism 20, and the robot body 300 is used for driving the third suction plate 310 to move so as to suck the first carbon paper a from the carbon paper turning mechanism 20 and place the first carbon paper a on the middle core layer material belt Z. The carbon paper robot handling mechanism 30 may also be implemented by using the prior art, and will not be described herein.

According to an embodiment of the present application, as shown in fig. 7, a schematic diagram of a carbon paper deviation correcting and positioning platform 40 is shown, where the carbon paper deviation correcting and positioning platform 40 is used for accurately positioning a second carbon paper B after dispensing, which is transferred from a carbon paper handling mechanism 70 or transferred from a transfer belt 110, that is, aligning the second carbon paper below the middle core material strip Z with reference to the middle core material strip Z, so that the second carbon paper can be attached to a predetermined position on the lower surface of the middle core material strip Z. According to one embodiment, the predetermined position of the five-in-one middle core material strip Z is an active area on the five-in-one middle core material strip Z, specifically, a hollowed-out area of the frame, or an area where the active layer of the CCM is located.

According to one embodiment of the present application, as shown in fig. 7, the carbon paper deviation correcting and positioning platform 40 mainly includes an X-direction moving module 400, a Y-direction moving module 410, a rotating moving module 420 and a fourth suction plate 430, which are sequentially connected. The fourth suction plate 430 is used for adsorbing the second carbon paper B, the X-direction moving module 400 and the Y-direction moving module 410 are respectively used for moving the fourth suction plate 430 and the second carbon paper B adsorbed by the fourth suction plate 430 in the X-direction and the Y-direction, and the rotating moving module 420 is used for rotating the fourth suction plate 430 and the second carbon paper B adsorbed by the fourth suction plate 430 in the horizontal plane so as to accurately position the fourth suction plate 430 and the second carbon paper B adsorbed by the fourth suction plate. The carbon paper deviation correcting and positioning platform 40 can also be implemented by adopting the prior art, and is not described herein again.

According to one embodiment of the present application, the carbon paper deviation correcting and positioning platform 40 further includes a CCD assembly, which is a visual photographing assembly, for obtaining the position of the intermediate core material strip Z.

According to one embodiment of the present application, as shown in fig. 8, a schematic diagram of a hot press mechanism 50 is provided, where the hot press mechanism 50 is used for hot pressing the electrodes stacked in multiple layers, and hot press forming is performed on the first carbon paper a, the intermediate core material strip Z, and the second carbon paper B as shown in the drawing. The hot press mechanism 50 mainly includes a press cylinder 500 and a press body structure 510. The press machine 500 drives the pressing main body structure 510 to perform hot press forming on the clamped first carbon paper A, middle core layer material belt Z and second carbon paper B. According to one embodiment of the present application, the pressing body structure 510 of the hot pressing mechanism 50 includes an upper pressing plate and a lower pressing plate, and the press cylinder 500 drives the upper pressing plate to move toward the lower pressing plate, so as to complete hot pressing of the material placed in the middle.

According to one embodiment of the present application, as shown in fig. 9, a schematic diagram of a web cutting mechanism 60 is shown, where the web cutting mechanism 60 is used to cut a membrane electrode with carbon paper attached to a middle core material tape Z into a required size. The web cutting mechanism 60 mainly includes a press belt structure 600, a cutter mechanism 610, a cutter moving module 620, a belt drawing mechanism 630, and a belt drawing module 640. The belt pressing structure 600 is used for pressing the middle core layer material belt Z, the cutter moving module 620 is used for driving the cutter mechanism 610 to move, the belt pulling mechanism 630 is used for tensioning the end part of the middle core layer material belt Z, and the belt pulling module 640 is used for driving the belt pulling mechanism 630 to move along the conveying direction of the material belt.

The working process of the system is as follows: carbon paper is respectively fed to the upper parts of the conveying belts 110 on the left side and the right side, and the vacuum adsorption material sheets are used for enabling the material sheets to be stably and accurately conveyed to each station on a belt line, feeding positions, dispensing positions, glue line detection positions, discharging positions and buffer positions are arranged on the conveying belt 110 line, and each station can be arranged at equal intervals, so that equipment space layout and time can be greatly saved, and the beat of dispensing is improved.

The end of the conveying belt 110 is the discharging position of the carbon paper after dispensing is completed, the transfer modules in the carbon paper overturning mechanism 20 and the carbon paper conveying mechanism 70 move the respective suction plates to the upper part of the discharging position, the carbon paper overturning mechanism 20 sucks the first carbon paper A and overturns the carbon paper, and moves the first carbon paper A to the feeding position of the carbon paper robot conveying mechanism 30, the carbon paper robot conveying mechanism 30 sucks the overturned first carbon paper A, moves the first carbon paper A to the upper part of the carbon paper deviation correcting and positioning platform 40, and meanwhile, the carbon paper conveying mechanism 70 sucks the second carbon paper B, and the second carbon paper B is placed above the carbon paper deviation correcting and positioning platform 40.

And the five-in-one middle core layer material belt Z which is fed to the upper part of the carbon paper deviation correcting and positioning platform 40 is photographed and positioned by a CCD. The deviation correcting action of the carbon paper takes CCD photographing and positioning of the middle core layer material belt Z as a reference. After the first carbon paper A, the second carbon paper B and the middle core layer material belt Z are all in place, pressure is applied to laminate the first carbon paper A, the second carbon paper B and the middle core layer material belt Z, and the seven-in-one material belt pre-lamination is completed.

According to one embodiment of the present application, the movement of the web may be accomplished by a drawstring mechanism 630 in the web cutting mechanism 60. Of course, a separate drawstring mechanism may be provided to accomplish this.

According to one embodiment of the present application, the tape station has: the device comprises a pre-attaching station, a hot pressing station, a cutting station and a caching station. The pre-lamination may be accomplished with the web stationary. Pressure can be applied at the hot press station by the hot press mechanism 50 to provide the appropriate temperature to the pre-applied, finished, seven-in-one web of draw tape thereto. The cutting work of the material belt can be completed at the cutting station. Seven combined tablets can be obtained.

According to one embodiment of the present application, the tape pulling module 640 drives the tape pulling mechanism 630 to move to the cutting position to clamp the tape, then pulls the tape until a predetermined length, the cutter mechanism 610 slices the tape, and then the tape pulling module 640 drives the tape pulling mechanism 630 to come to the cutting position again to clamp the tape, and the above actions are repeated continuously.

In the whole seven-in-one membrane electrode preparation process, the equal-interval multi-station simultaneous action can be realized, the waiting time of a plurality of actions is reduced, and the laminating effect is stable and the equipment structure is more compact.

The application can directly accomplish the point on conveyer belt and glue, can equidistant multistation simultaneous movement, compare with prior art, need not carry it again to conveyer belt after the point glues the platform with the carbon paper point glues, simplified structure and saved the cost.

After the pre-lamination is completed, the heat pressing and cutting are carried out, and compared with the process route of the heat pressing and cutting, the carbon paper cannot fall off easily, so that the material loss caused by poor pre-lamination is reduced.

The completion of laminating and hot pressing of this application is accomplished before the cut-parts, can establish tension on the material area at any time for the material area is difficult for wrinkling in the heating process, has reduced the adverse loss that wrinkling caused.

Compared with the prior art that the cut pieces are subjected to hot pressing, the method has the advantages that the cut pieces do not need to be transferred to the hot pressing mechanism and then transferred to the next station, a large number of transfer mechanisms are reduced, the whole system structure is simplified on the premise that all functions are realized, and the cost is reduced.

Finally, it should be noted that: the foregoing description is only exemplary embodiments of the present disclosure, and not intended to limit the disclosure, but although the disclosure is described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the technical solutions described in the foregoing embodiments, or equivalents may be substituted for some of the technical features thereof. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present disclosure should be included in the protection scope of the present disclosure.

Claims (10)

1. A membrane electrode assembly system comprising:

the carbon paper dispensing and transferring mechanism comprises a first dispensing and transferring mechanism and a second dispensing and transferring mechanism, wherein the first dispensing and transferring mechanism and the second dispensing and transferring mechanism respectively comprise a dispensing mechanism and a conveying belt, the conveying belts of the first dispensing and transferring mechanism and the second dispensing and transferring mechanism are respectively used for conveying first carbon paper and second carbon paper, and the dispensing mechanisms of the first dispensing and transferring mechanism and the second dispensing and transferring mechanism are respectively used for dispensing the first carbon paper and the second carbon paper on the conveying belt;

the carbon paper turnover mechanism is arranged at the downstream of the first dispensing transfer mechanism and is used for turning over the dispensed first carbon paper;

the carbon paper robot carrying mechanism is arranged at the downstream of the carbon paper overturning mechanism and is used for attaching the turned first carbon paper to the upper surface of the middle core layer material belt;

the carbon paper deviation correcting and positioning platform is arranged at the downstream of the second dispensing and transferring mechanism and is used for positioning the second carbon paper after dispensing so that the second carbon paper is aligned to the lower part of the middle core layer material belt and is attached;

and the hot pressing mechanism is arranged at the downstream of the carbon paper deviation rectifying and positioning platform and is used for hot pressing the middle core layer material belt and the first carbon paper and the second carbon paper at two sides.

2. The membrane electrode assembly system of claim 1 further comprising a carbon paper handling mechanism for transferring the second carbon paper after dispensing on the conveyor belt to the carbon paper deviation correcting and positioning platform.

3. The membrane electrode assembly system of claim 2, wherein the carbon paper handling mechanism comprises a first drive motor, a horizontal handling module, a lifting module and a first suction plate which are sequentially connected, wherein the first suction plate is used for adsorbing the second carbon paper after dispensing, the lifting module is used for vertically moving the first suction plate, and the first drive motor drives the horizontal handling module to horizontally move the lifting module and the first suction plate.

4. A membrane electrode assembly system according to any one of claims 1 to 3, further comprising a web cutting mechanism for cutting the membrane electrode assembly with the first and second carbon papers attached to the intermediate core web to a predetermined size.

5. The membrane electrode assembly system of claim 4 wherein the web cutting mechanism comprises a press belt structure for pressing the intermediate core web, a cutter mechanism for driving the cutter mechanism to move, a cutter movement module for tensioning an end of the intermediate core web, a pull belt mechanism for driving the pull belt mechanism to move in the intermediate core web transport direction, and a pull belt module.

6. A membrane electrode assembly according to any one of claims 1 to 3 wherein the first and second dispensing transfer mechanisms are juxtaposed.

7. The membrane electrode assembly system of any one of claims 1 to 3, wherein the carbon paper turning mechanism comprises a second driving motor, a transfer module, a rotary cylinder and a second suction plate which are sequentially connected, the rotary cylinder is used for rotating the second suction plate, and the second driving motor drives the transfer module to move the rotary cylinder and the second suction plate.

8. A membrane electrode assembly system according to any one of claims 1 to 3 wherein the carbon paper robotic handling mechanism comprises a robotic body and a third suction plate, the third suction plate being adapted to adsorb the first carbon paper on the carbon paper turning mechanism, the robotic body being adapted to drive the third suction plate to move to draw the first carbon paper from the carbon paper turning mechanism and place the first carbon paper on the intermediate core web.

9. A membrane electrode assembly according to any one of claims 1 to 3, wherein the carbon paper deviation correcting and positioning platform comprises an X-direction moving module, a Y-direction moving module, a rotating moving module and a fourth suction plate which are sequentially connected, the fourth suction plate is used for adsorbing the second carbon paper, the rotating moving module is used for rotating the fourth suction plate and the second carbon paper adsorbed by the fourth suction plate in a horizontal plane, and the X-direction moving module and the Y-direction moving module (410) are respectively used for moving the fourth suction plate and the second carbon paper adsorbed by the fourth suction plate in an X-direction and a Y-direction.

10. The membrane electrode assembly of claim 9, wherein the carbon paper deviation correcting and positioning stage further comprises a CCD assembly for acquiring the position of the intermediate core layer web.