Laminating device for membrane electrode

Abstract

The present invention relates to a bonding device for membrane electrodes, comprising a loading station, an unloading station, and a bonding station. The loading station and the unloading station are arranged at intervals along a first direction. The bonding device comprises a first feeding mechanism, a second feeding mechanism, and a positioning bonding mechanism. The first feeding mechanism is used to transport the sheet material from the loading station to the unloading station. The second feeding mechanism is arranged downstream of the first feeding mechanism and is used to transport the sheet material at the unloading station to the first material belt at the bonding station. The positioning bonding mechanism is arranged at the bonding station and is used to position and heat the first material belt at the bonding station and the sheet material on the first material belt so that the sheet material and the first material belt are bonded. By providing the above-mentioned bonding device, it is only necessary to cut one of the material belts into sheets, and then bond the sheet material to the first material belt, thereby improving production efficiency.

Description

Technical Field

[0001] The present invention relates to the technical field of fuel cell production equipment, and in particular to a laminating device for membrane electrodes. Background Art

[0002] The membrane electrode assembly is an important component of the fuel cell, including a coated proton exchange membrane, a frame, and a gas diffusion layer. The coated proton exchange membrane is sandwiched between two layers of frames, and then two layers of gas diffusion layers are sandwiched on the outside to form a seven-layer membrane electrode assembly.

[0003] Currently, in the production process of membrane electrode assemblies, the roll material is first cut into sheets, and then the sheets are grabbed by a robot for stacking. Since all the roll materials need to be cut into sheets before stacking, the production efficiency is low. Summary of the Invention

[0004] Based on this, it is necessary to provide a membrane electrode bonding device with high production efficiency to address the problem of low production efficiency of existing membrane electrode assemblies.

[0005] A laminating device for a membrane electrode, the laminating device having a loading station, an unloading station and a laminating station, the laminating device comprising:

[0006] A first feeding mechanism, used for conveying the sheet material from the loading station to the unloading station;

[0007] A second feeding mechanism is provided downstream of the first feeding mechanism, and is used to convey the sheet material located at the unloading station to the first material belt passing through the laminating station; and

[0008] The positioning and laminating mechanism is provided at the laminating station, and is used for positioning and heating the first material belt located at the laminating station and the sheet material located on the first material belt, so as to laminat e the sheet material and the first material belt.

[0009] By installing the above-mentioned laminating device, the first material strip passes through the laminating station during transportation, and the sheet material is transported to the laminating station by the first and second feeding mechanisms, and is then laminated to the first material strip by the positioning and laminating mechanism. Thus, compared with traditional membrane electrode forming methods, the laminating device only needs to cut one material strip into sheets, and then laminate the sheets to the first material strip, thereby improving production efficiency.

[0010] In one embodiment, the positioning and bonding mechanism includes a bonding platform, a positioning component and a heating element. The bonding platform is located at the bonding station. The positioning component and the heating element are arranged on the bonding platform. The positioning component positions the first material belt of the bonding station and the sheet material on the first material belt. The heating element is used to heat the first material belt of the bonding station and the sheet material on the first material belt.

[0011] In one embodiment, the positioning assembly includes a plurality of telescopic positioning posts, and the plurality of telescopic positioning posts are disposed on the fitting platform, and each of the telescopic positioning posts includes a positioning state and a retracted state;

[0012] When the telescopic positioning post is in the positioning state, the telescopic positioning post can pass through the first material belt located at the bonding station and the sheet material located on the first material belt to position the first material belt and the sheet material on the first material belt;

[0013] When the telescopic positioning column is in the retracted state, the first material tape can be moved in the laminating station.

[0014] In one embodiment, the first feeding mechanism includes at least two feeding components, each of which extends longitudinally along a first direction and is arranged at the loading station and the unloading station. At least two of the feeding components are arranged at intervals along a third direction perpendicular to the first direction, and at least two of the feeding components are used to jointly adsorb the sheet material at the loading station and transport it to the unloading station.

[0015] In one embodiment, the feeding component is a vacuum belt conveyor.

[0016] In one embodiment, the laminating device further includes a waste discharge mechanism, which includes a waste box and a waste discharge component that can be reciprocated along a second direction perpendicular to the first direction and the third direction. The waste box is located on one side of the feeding component along the second direction. During the reciprocating movement of the waste discharge component along the second direction, it can pass between two adjacent groups of the feeding components to push the defective sheet material on the feeding component into the waste box.

[0017] In one embodiment, the second feeding mechanism includes an adsorption component, which is located between two adjacent groups of the feeding components. The adsorption component can absorb the sheet material located at the unloading station and transport the sheet material to the first material belt located at the bonding station.

[0018] In one embodiment, the second feeding mechanism further includes a mounting base, a first middle member, and a second middle member, wherein the mounting base and the positioning and fitting mechanism are respectively located on opposite sides of the feeding assembly along the second direction, the first middle member is reciprocally connected to the mounting base along the second direction and a fourth direction and a fifth direction perpendicular to the second direction, the second middle member is rotatably connected to the first middle member about a rotation axis extending along the second direction, and the plurality of adsorption members are connected to the second middle member;

[0019] The second direction is perpendicular to the first direction and the third direction, and the fourth direction is at an angle to the fifth direction.

[0020] In one embodiment, the bonding device further includes a first loading mechanism and a cutting mechanism. The first loading mechanism is used to transport the second material strip to the cutting mechanism. The cutting mechanism is located at the loading station and is used to cut the second material strip to form the sheet material.

[0021] In one embodiment, the bonding device further includes a second loading mechanism, which is located upstream of the positioning bonding mechanism and is used to transport the first material tape to the bonding station. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0023] Figure 1 A schematic structural diagram of a membrane electrode laminating device provided in one embodiment of the present invention in a tape-feeding state;

[0024] Figure 2 for Figure 1 The structure diagram of the bonding device shown is in the bonding state. DETAILED DESCRIPTION

[0025] To make the above-mentioned objects, features, and advantages of the present invention more readily apparent, specific embodiments of the present invention are described in detail below with reference to the accompanying drawings. The following description sets forth numerous specific details to facilitate a full understanding of the present invention. However, the present invention can be implemented in many other ways than those described herein, and those skilled in the art may make similar modifications without departing from the scope of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0026] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like to indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0027] 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 the technical features being referred to. 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, "plurality" means at least two, such as two, three, etc., unless otherwise specifically defined.

[0028] In the present invention, unless otherwise specified or limited, the terms "installed," "connected," "connect," "fixed," etc. should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integration; mechanical connection, electrical connection; direct connection, or indirect connection through an intermediate medium; internal communication between two components, or interaction between two components, unless otherwise specified. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on specific circumstances.

[0029] In the present invention, unless otherwise expressly specified or limited, when a first feature is "above" or "below" a second feature, it may mean that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediary. Furthermore, when a first feature is "above," "above," or "above" a second feature, it may mean that the first feature is directly above or diagonally above the second feature, or simply means that the first feature is at a higher level than the second feature. When a first feature is "below," "below," or "below" a second feature, it may mean that the first feature is directly below or diagonally below the second feature, or simply means that the first feature is at a lower level than the second feature.

[0030] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or there may be an intermediate element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be an intermediate 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 implementation methods.

[0031] In order to facilitate understanding of the technical solution of the present invention, the existing membrane electrode forming method is explained here: the existing membrane electrode forming method is to cut two rolls of material into sheets 300, and then use a robot to grab the corresponding sheets 300 and fit them together. Since both rolls of material need to be cut and then fit together, the efficiency is low.

[0032] like Figure 1 and Figure 2 As shown, a membrane electrode laminating device 100 provided in one embodiment of the present invention comprises a loading station 101, an unloading station 102, and a laminating station 103. The loading station 101 and the unloading station 102 are arranged in a first direction with intervals therebetween. The laminating device includes a first feeding mechanism 21, a second feeding mechanism 22, and a positioning and laminating mechanism 30.

[0033] The first feeding mechanism 21 is used to transport the sheet material 300 from the loading station 101 to the unloading station 102, and the second feeding mechanism 22 is arranged downstream of the first feeding mechanism 21, and is used to transport the sheet material 300 located at the unloading station 102 to the first material belt 200 passing through the bonding station 103 along the belt path.

[0034] The positioning and laminating mechanism 30 is provided at the laminating station 103 for positioning and heating the first material belt 200 at the laminating station 103 and the sheet material 300 on the first material belt 200 so as to laminarize the sheet material 300 and the first material belt 200 .

[0035] The first direction is Figure 1 Left and right directions shown.

[0036] By setting up the above-mentioned laminating device, the first material strip 200 passes through the laminating station 103 during transportation, and the sheet 300 is transported to the laminating station 103 by the first feeding mechanism 21 and the second feeding mechanism 22, and is laminated to the first material strip 200 by the positioning laminating mechanism 30. Thus, compared with traditional membrane electrode forming methods, the laminating device only needs to cut one material strip into sheets 300, and then laminate the sheets 300 to the first material strip 200, thereby improving production efficiency.

[0037] It should be noted that since the membrane electrode assembly is a seven-layer membrane electrode, five membrane electrode layers are formed during the production process, namely the upper frame, coating layer, proton exchange membrane, coating layer, and lower frame stacked in sequence. The laminating device is used to initially laminate the upper frame or lower frame to the proton exchange membrane with the coating layer or to which one of the frames is laminated. Subsequently, the upper frame or lower frame can be rolled and laminated to the proton exchange membrane with the coating layer using a rolling device. In other words, the first material strip 200 is the proton exchange membrane with the coating layer, and the sheet 300 is the upper frame or lower frame.

[0038] In addition, since the upper frame or lower frame needs to be bonded to the proton exchange membrane with the coating layer, the upper frame or lower frame needs to be bonded to the position of the corresponding coating layer, so the first material strip 200 and the sheet material 300 need to be positioned to ensure the accuracy of the bonding position.

[0039] In some embodiments, the bonding device also includes a first loading mechanism 11 and a cutting mechanism 40. The first loading mechanism 11 is used to transport the second material strip 400 to the cutting mechanism 40. The cutting mechanism 40 is located at the loading station 101 and is used to cut the second material strip 400 to form a sheet 300.

[0040] In some embodiments, the first loading mechanism 11 includes a first unwinding member 112 and a main drive component 114. The first unwinding member 112 is located upstream of the cutting mechanism 40 and is used to release the second material tape 400. The main drive component 114 is located between the first unwinding member 112 and the cutting mechanism 40 and is used to provide a guiding force to guide the material tape from the first unwinding member 112 toward the cutting mechanism 40.

[0041] Furthermore, the main drive component 114 includes a rewinding drive member, a drive roller 1142 and a counter-roller 1144. The rewinding drive member is connected to the drive roller 1142 to drive the drive roller 1142 to rotate. The drive roller 1142 and the counter-roller 1144 are parallel to each other, and the distance between the two is less than the thickness of the second material strip 400. The second material strip 400 is located between the drive roller 1142 and the counter-roller 1144. When the drive member is actuated, the drive roller 1142 rotates, driving the counter-roller 1144 to rotate and conveying the second material strip 400 toward the cutting mechanism 40.

[0042] Specifically, the unwinding drive component is a servo motor.

[0043] In some embodiments, the cutting mechanism 40 includes a cutting drive, a cutter 41 and a conveying platform 42. The cutting drive is fixedly connected to the cutter 41 to drive the cutter 41 to reciprocate along a second direction perpendicular to the surface of the second material strip 400, thereby cutting the second material strip 400 during the reciprocating movement to form the above-mentioned sheet material 300. The conveying platform 42 is located at the loading station 101 and is located on the side of the cutter 41 away from the first loading mechanism 11 along the first direction, and is used to receive the sheet material 300. The first feeding mechanism 21 is used to convey the sheet material 300 on the conveying platform 42 located at the loading station 101 to the unloading station 102.

[0044] It can be understood that since the second material belt 400 is conveyed from the first loading mechanism 11, after the front end of the second material belt 400 moves to the conveying platform 42, the cutter 41 cuts off the front end of the second material belt 400, and the front end becomes a sheet material 300 and is located on the conveying platform 42. The first feeding mechanism 21 transports the sheet material 300 away, and the second material belt 400 continues to be conveyed, and the steps are repeated to generate a new sheet material 300.

[0045] It should be noted that the second direction is perpendicular to the second material strip 400, that is, the second direction is also perpendicular to the first direction. Figure 1 The up and down directions shown are the vertical directions in actual use.

[0046] Specifically, the cutting drive member can be a structure in which a motor and a cam cooperate, or a drive structure such as an electric cylinder or a pneumatic cylinder, which will not be described in detail here.

[0047] In some embodiments, the first feeding mechanism 21 includes at least two feeding components, each feeding component extends longitudinally along a first direction and is arranged at the loading station 101 and the unloading station 102, and at least two feeding components are arranged at intervals along a third direction perpendicular to the first direction, and at least two feeding components are used to jointly adsorb the sheet material 300 of the loading station 101 and transport it to the unloading station 102.

[0048] Among them, the third direction is Figure 1 The front-to-back direction shown is perpendicular to Figure 1 The direction of the paper, that is, the third direction is perpendicular to both the first direction and the second direction.

[0049] It can be understood that the sheet material 300 has a certain width in the third direction, and the width of each feeding component along the third direction is smaller than the width of the sheet material 300 in the third direction. In order to avoid the sheet material 300 from detaching from the feeding component during the transportation of the sheet material 300 by the feeding component, and at the same time ensure the flatness of the sheet material 300 during the transportation process, at least two feeding components are set to cooperate with each other to jointly adsorb and grasp the sheet material 300.

[0050] In actual applications, the feeding components are vacuum belt conveyors, each of which extends longitudinally along a first direction and is arranged at a loading station 101 and an unloading station 102 .

[0051] In other embodiments, each feeding assembly includes an independent first feeding unit and a second feeding unit, and the first feeding unit and the second feeding unit are arranged at intervals along the first direction. At least two first feeding units are used to jointly absorb the sheet material 300 of the loading station 101 and transport it to the second feeding unit, and at least two second feeding units are used to jointly absorb the sheet material 300 and transport it to the unloading station 102.

[0052] In this way, the first feeding unit and the second feeding unit can be controlled separately. After the sheet material 300 is transported to the unloading station 102, the sheet material 300 needs to be transported to the bonding station 103 through the second feeding mechanism 22. At this time, the second feeding unit is shut down so that the sheet material 300 is separated from the adsorption of the second feeding unit and transferred to the second feeding mechanism 22.

[0053] Furthermore, the first feeding mechanism 21 includes four feeding components, namely, four first feeding units arranged at intervals along the third direction and four second feeding units arranged at intervals along the third direction. Specifically, the first feeding units and the second feeding units are both vacuum belt conveyors and are evenly spaced along the third direction.

[0054] It should be noted that, in the above two sets of embodiments, the difference is that each feeding assembly is one or two vacuum belt conveyors, and preferably each feeding assembly is one vacuum belt conveyor.

[0055] In some embodiments, the bonding device further includes a waste discharge mechanism 50, which includes a waste box 51 and a waste discharge component 52 that can reciprocate along a second direction perpendicular to the first direction and the third direction. The waste box 51 is located on one side of the feeding component along the second direction. The waste discharge component 52 can pass between two adjacent feeding components during the reciprocating movement along the second direction to push the defective sheet 300 on the feeding component into the waste box 51.

[0056] In this way, the first feeding mechanism 21 is configured to be at least two feeding components arranged at intervals along the third direction, and at least two feeding components cooperate with each other to adsorb the sheet material 300. When there is a defect in the adsorbed sheet material 300, the waste discharge part 52 can extend through between adjacent feeding components and push the adsorbed sheet material 300 into the waste box 51.

[0057] Furthermore, the waste discharge mechanism 50 also includes a detector for inspecting the sheet 300 to determine whether the sheet 300 has defects. It should be noted that for defective sheet 300, the previous inspection system may detect a defect somewhere on the second material belt 400 and then mark the corresponding location. The detector is then used to detect whether the mark exists on the sheet 300. If the mark exists, it indicates that the sheet 300 is defective, and the waste discharge unit 52 then operates to push the sheet 300 into the waste box 51.

[0058] In actual application, the waste discharge mechanism 50 also includes a waste discharge drive component. The waste box 51 and the waste discharge drive component are located on opposite sides of the first feeding mechanism 21 along the second direction, and the waste box 51 is located below the first feeding mechanism 21. The waste box 51 is arranged corresponding to the feeding component, and the waste discharge drive component is connected to the waste discharge component 52 to drive the waste discharge component 52 to move back and forth along the second direction.

[0059] It is understandable that the waste discharge part 52 does not have the ability to absorb the sheet material 300. Since the waste box 51 is located below the feeding component, when the waste discharge part 52 moves downward, it pushes the sheet material 300 away from the absorption of the feeding component, and the sheet material 300 will automatically fall into the waste box 51.

[0060] Specifically, the waste driving member is a pneumatic cylinder or an electric cylinder, and the waste discharge members 52 include three. Each row of waste members 52 is arranged between two adjacent feeding components and are all connected to the waste discharge driving member. The three waste discharge knives operate simultaneously to conveniently and quickly push the defective sheet material 300 into the waste box 51.

[0061] It should also be noted that, for defective sheets 300 , when the waste discharge component 52 pushes the defective sheet 300 into the waste box 51 , there is no need to consider damage to the sheet 300 , and therefore there is no need to shut down the feeding assembly.

[0062] In some embodiments, the second feeding mechanism 22 includes an adsorption member 222 located between two adjacent feeding components. The adsorption member 222 can absorb the sheet material 300 from the unloading station 102 and transport the sheet material 300 to the first material belt 200 located at the bonding station 103.

[0063] In practical applications, there are three adsorption members 222 , and each adsorption member 222 is located between two adjacent feeding assemblies.

[0064] It should be noted that when there are two feeding components, an adsorption component 222 is arranged between the two feeding components, and the two feeding components are respectively adsorbed on the opposite ends of the sheet material 300 along the third direction, and the adsorption component 222 has an adsorption plane for adsorbing the sheet material 300. The area of ​​the adsorption plane should be as large as possible within the allowable range to ensure the adsorption strength and ensure that the adsorption component 222 absorbs the sheet material 300 and the flatness of the sheet material 300.

[0065] In addition, when the number of feeding components is three or more, a single adsorption component 222 cannot ensure the adsorption strength, and cannot ensure that the sheet material 300 can be as flat as possible after absorbing the sheet material 300. Therefore, multiple adsorption components 222 are set, and multiple adsorption components 222 are arranged at intervals along the third direction to ensure the adsorption strength, avoid the sheet material 300 from falling off when it is conveyed to the first material belt 200 of the bonding station 103, and ensure the flatness of the sheet material 300 during the conveying process as much as possible to facilitate the bonding of the sheet material 300 with the first material belt 200.

[0066] In some embodiments, the adsorption member 222 can synchronously reciprocate along the second direction, and the adsorption member 222 can absorb the sheet material 300 from the unloading station 102 during the reciprocating movement along the second direction, and transport the sheet material 300 to the first material belt 200 located at the bonding station 103.

[0067] During this process, after the adsorption plane of the adsorption component 222 absorbs the sheet material 30, the feeding assembly stops, the sheet material 300 separates from the feeding assembly, and is transferred to the adsorption plane of the adsorption component 222, and then moves along the second direction with the adsorption component 222 to the bonding station 103.

[0068] In some embodiments, the second feeding mechanism 22 further includes a mounting base 224, a first intermediate member, and a second intermediate member. The mounting base 224 and the positioning and laminating mechanism 30 are located on opposite sides of the feeding assembly along the second direction. The first intermediate member is connected to the mounting base 224 for reciprocal movement along the second direction and in fourth and fifth directions perpendicular to the second direction. The second intermediate member is rotatably connected to the first intermediate member about a rotation axis extending along the second direction. The suction member 222 is connected to the second intermediate member. The fourth direction and the fifth direction are at an angle.

[0069] It should be noted that the first intermediate member can be connected to the mounting base 224 via multiple drive mechanisms, and the second intermediate member can be connected to the first intermediate member via corresponding drive members. For example, via a first linear module, a second linear module, and a pneumatic cylinder (or electric cylinder), the first linear module is transmission-connected to the second linear module to drive the second linear module to reciprocate in a fourth direction. The second linear module is transmission-connected to the pneumatic cylinder (or electric cylinder) to drive the pneumatic cylinder (or electric cylinder) to reciprocate in a fifth direction. The pneumatic cylinder (or electric cylinder) is transmission-connected to the first intermediate member to drive the intermediate member to reciprocate in the second direction. The second intermediate member is connected to the first intermediate member via a servo motor to rotate about the rotation axis.

[0070] In addition, the fourth direction and the fifth direction are directions perpendicular to the third direction, and preferably, the fourth direction is perpendicular to the fifth direction.

[0071] Furthermore, the mounting seat 224 and the positioning and laminating mechanism 30 both correspond to the feeding assembly, and the mounting seat 224 is located above the feeding assembly, and the positioning and laminating mechanism 30 is located below the feeding assembly.

[0072] In some embodiments, the laminating apparatus further includes a visual detection mechanism for detecting positional information of the sheet 300, and the second feeding mechanism 22 is configured to operate based on the positional information detected by the visual detection mechanism. In practical applications, the visual detection mechanism includes two or more high-resolution cameras and associated light sources. The high-resolution cameras are used to capture images of at least two sharp corners of the sheet 300 to determine the position and posture of the sheet 300.

[0073] It can be understood that after the adsorption part 222 adsorbs the sheet material 300, the sheet material 300 is transported to the bonding station 103 along a fixed route and angle. When the sheet material 300 is transported to the unloading station 102 through the first feeding mechanism 21, although the sheet material 300 remains horizontal, the angles of different sheets 300 are different.

[0074] Therefore, by detecting the position information of the sheet material 300 through the visual detection mechanism, the suction member 222 can be adjusted horizontally along with the first intermediate member and / or the second intermediate member, so that the suction member 222 is always adsorbed at a fixed position on the sheet material 300. For example, when a sheet material 300 is offset in the horizontal direction, the suction member 222 can be adjusted horizontally along with the first intermediate member and / or the second intermediate member, so that the suction member 222 is adsorbed at the corresponding position on the sheet material 300. The suction member 222 then returns to its initial position in the horizontal direction and then moves along the second direction to the bonding station 103. That is, the suction member 222 conveys the sheet material 300 along a fixed route and angle, thereby ensuring that the sheet material 300 is accurately conveyed to the corresponding position on the first material belt 200.

[0075] In some embodiments, the positioning and bonding mechanism 30 includes a bonding platform 31, a positioning component and a heating element. The bonding platform 31 is located at the bonding station 103. The positioning component and the heating element are arranged on the bonding platform 31. The positioning component positions the first material belt 200 of the bonding station 103 and the sheet material 300 located on the first material belt 200. The heating element is used to heat the first material belt 200 of the bonding station 103 and the sheet material 300 on the first material belt 200.

[0076] It needs to be explained that the first material strip 200 passes through the bonding station 103. In order to ensure the normal transportation of the first material strip 200, the first material strip 200 does not contact the bonding platform 31 during the transportation process. In order to ensure that the first material strip 200 and the sheet material 300 are tightly bonded when the heating element heats the first material strip 200 and the sheet material 300, the adsorption element 222 can be pressed on the sheet material 300 and the first material strip 200, and the sheet material 300 and the first material strip 200 are pressed onto the bonding platform 31, and then heated.

[0077] Of course, the bonding platform 31 can also be driven by the driving mechanism to move back and forth along the second direction. The bonding platform 31 rises to bond with the first material strip 200 to support the first material strip 200, and then the adsorption component 222 drives the sheet material 300 down to the first material strip 200 to achieve bonding between the two, and then it can be heated by the heating rack.

[0078] Furthermore, the positioning assembly includes a plurality of telescopic positioning posts 32 . The plurality of telescopic positioning posts 32 are disposed on the fitting platform 31 , and each telescopic positioning post 32 includes a positioning state and a retracted state.

[0079] When the telescopic positioning column 32 is in the positioning state, the telescopic positioning column 32 can pass through the first material belt 200 located at the bonding station 103 and the sheet material 300 located on the first material belt 200 to position the first material belt 200 and the sheet material 300 on the first material belt 200; when the telescopic positioning column 32 is in the retracted state, the first material belt 200 can be moved in the bonding station 103.

[0080] In this way, when the first material strip 200 is conveyed to the bonding station 103, the telescopic positioning column 32 is switched from the retracted state to the positioning state, so that the telescopic positioning column 32 passes through the opening on the first material strip 200. At the same time, when the adsorption component 222 adsorbs the sheet material 300 and drives the sheet material to move downward, the opening on the sheet material 300 also passes through the telescopic positioning column 32, thereby realizing the positioning of the first material strip 200 and the sheet material 300, and ensuring that the sheet material 300 corresponds to the position with the coating layer on the first material strip 200; after the bonding is completed and heated, the telescopic positioning column 32 is switched to the retracted state, and the first material strip 200 continues to be transported to the next station.

[0081] It can also be understood that the laminating device includes a laminating state and a running state, such as Figure 2 As shown, when the laminating device is in the laminating state, the first material belt 200 stops conveying, the telescopic positioning column 32 is in the positioning state, and the laminating positioning mechanism 30 positions and heats the first material belt 200 and the sheet material 300 for laminating; as shown in FIG. Figure 1 As shown, when the telescopic positioning column 32 is in the running state, the telescopic positioning column 32 is in the retracted state, and the first material tape 200 can continue to be transported to the next workstation.

[0082] In actual applications, the positioning and laminating mechanism 30 further includes a telescopic drive member disposed on the laminating platform 31 and in transmission connection with the telescopic positioning post 32. The telescopic drive member is configured to drive the telescopic positioning post 32 to reciprocate in the second direction, thereby allowing the telescopic positioning post 32 to pass through the opening in the first material strip 200 during the reciprocating movement in the second direction. Specifically, the telescopic drive member is a pneumatic cylinder or an electric cylinder.

[0083] In other embodiments, when the bonding platform 31 moves back and forth along the second direction, the telescopic positioning column 32 can be fixedly connected to the bonding platform 31 so as to move back and forth along the second direction with the bonding platform 31, and during the movement, multiple telescopic positioning members can pass through the corresponding openings on the first material strip 200 and the corresponding openings on the sheet material 300, or after the first material strip 200 contacts the bonding platform 31, multiple telescopic positioning members extend and pass through the corresponding openings on the first material strip 200 and the corresponding openings on the sheet material 300.

[0084] In some embodiments, the bonding device further includes a second loading mechanism 12 , which is located upstream of the positioning bonding mechanism 30 and is used to transport the first material tape 200 to the bonding station 103 .

[0085] Furthermore, the second loading mechanism 12 includes a second unwinding member 122 and a roller 114. The second unwinding member 122 is used to release the first material tape 200. The roller 114 is located between the second unwinding member 122 and the positioning and bonding mechanism 30, and is used to guide the transportation of the second material tape 400 so that the first material tape 200 passes through the bonding station 103.

[0086] It should be noted that in this embodiment, when the first material tape 200 passes through the bonding station 103, the first material tape 200 is conveyed along the first direction, while in other embodiments, the first material tape 200 can also be conveyed along other directions. It is only necessary to ensure that the first material tape 200 is conveyed horizontally.

[0087] In some embodiments, the laminating device further includes a deviation correction mechanism, which is used to correct the conveyance of the first material belt 200 and the second material belt 400 .

[0088] In some embodiments, the laminating device further includes a tension control mechanism, which is used to ensure that the first material tape 200 has a stable and normal tension during the conveying process.

[0089] In some embodiments, the bonding device further includes a dust removal mechanism, which is used to remove dust from the sheet material 300 formed after cutting the second material strip 400 .

[0090] The technical features of the above-mentioned embodiments can be combined arbitrarily. In order to make the description concise, not all possible combinations of the technical features in the above-mentioned 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.

[0091] The above-described embodiments merely illustrate several implementations of the present invention, and while their descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent. It should be noted that a person skilled in the art would be able to make numerous variations and improvements without departing from the spirit of the present invention, all of which fall within the scope of protection of the present invention. Therefore, the scope of protection of the patent for this invention shall be determined by the appended claims.

Claims

1. A laminating device for membrane electrode, characterized in that: The laminating device has a loading station, an unloading station and a laminating station, and the laminating device includes: A first feeding mechanism, used for conveying the sheet material from the loading station to the unloading station; A second feeding mechanism is provided downstream of the first feeding mechanism, and is used to convey the sheet material located at the unloading station to the first material belt passing through the laminating station; and a positioning and laminating mechanism, disposed at the laminating station, for positioning and heating the first material belt located at the laminating station and the sheet material located on the first material belt, so as to laminat e the sheet material and the first material belt; The positioning and laminating mechanism includes a laminating platform, a positioning assembly, and a heating element. The laminating platform is located at the laminating station. The positioning assembly and the heating element are arranged on the laminating platform. The positioning assembly positions the first material belt at the laminating station and the sheet material on the first material belt. The heating element is used to heat the first material belt at the laminating station and the sheet material on the first material belt. The first feeding mechanism includes at least two feeding components, each of which extends longitudinally along a first direction and is arranged at the loading station and the unloading station. At least two of the feeding components are arranged at intervals along a third direction perpendicular to the first direction. At least two of the feeding components are used to jointly adsorb the sheet material at the loading station and transport it to the unloading station.

2. The membrane electrode bonding device according to claim 1, characterized in that: The positioning assembly includes a plurality of telescopic positioning columns, which are arranged on the fitting platform, and each of the telescopic positioning columns includes a positioning state and a retracted state; When the telescopic positioning post is in the positioning state, the telescopic positioning post can pass through the first material belt located at the bonding station and the sheet material located on the first material belt to position the first material belt and the sheet material on the first material belt; When the telescopic positioning column is in the retracted state, the first material tape can be moved in the laminating station.

3. The membrane electrode bonding device according to claim 1, characterized in that: The feeding component is a vacuum belt conveyor.

4. The membrane electrode bonding device according to claim 1, characterized in that: The laminating device also includes a waste discharge mechanism, which includes a waste box and a waste discharge component that can be reciprocated along a second direction perpendicular to the first direction and the third direction. The waste box is located on one side of the feeding component along the second direction. During the reciprocating movement of the waste discharge component along the second direction, it can pass between two adjacent groups of the feeding components to push the defective sheet material on the feeding component into the waste box.

5. The membrane electrode laminating device according to claim 1, characterized in that: The second feeding mechanism includes an adsorption component, which is located between two adjacent groups of the feeding components. The adsorption component can absorb the sheet material located at the unloading station and transport the sheet material to the first material belt located at the bonding station.

6. The membrane electrode laminating device according to claim 5, characterized in that: The second feeding mechanism further includes a mounting base, a first intermediate member, and a second intermediate member, the mounting base and the positioning and fitting mechanism being located on opposite sides of the feeding assembly along the second direction, the first intermediate member being connected to the mounting base so as to be reciprocally movable along the second direction and a fourth direction and a fifth direction perpendicular to the second direction, the second intermediate member being rotatably connected to the first intermediate member about a rotation axis extending along the second direction, and the plurality of adsorption members being connected to the second intermediate member; The second direction is perpendicular to the first direction and the third direction, and the fourth direction is at an angle to the fifth direction.

7. The membrane electrode laminating device according to claim 1, characterized in that: The laminating device further includes a first loading mechanism and a cutting mechanism. The first loading mechanism is used to convey the second material strip to the cutting mechanism. The cutting mechanism is located at the loading station and is used to cut the second material strip to form the sheet material.

8. The membrane electrode laminating device according to claim 1, characterized in that: The bonding device further includes a second loading mechanism, which is located upstream of the positioning and bonding mechanism and is used to transport the first material tape to the bonding station.

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