Seven-in-one preparation equipment and method

Abstract

The invention relates to a seven-in-one preparation method and equipment. The seven-in-one preparation equipment comprises a sheet preparation assembly, a plurality of processing assemblies and a control assembly, wherein the sheet preparation assembly is used for cutting a GDL layer on a GDL material belt into a plurality of GDL sheets; the first conveying assembly and the second conveying assembly are used for receiving and conveying the GDL; the first unwinding assembly is used for unwinding and outputting a five-in-one material belt; the dispensing assembly is used for dispensing on the upper side surface of the five-in-one material belt; the laminating assembly is used for simultaneously sucking the M GDLs on the first conveying assembly and laminating the M GDLs to the upper side surface of the five-in-one material belt; the dispensing and laminating assembly is used for bearing the M GDLs and carrying out dispensing on the upper side surfaces of the M GDLs; the dispensing and laminating assembly can be controllably moved to the lower part of the five-in-one material belt, and the M GDLs are laminated to the lower side surface of the five-in-one material belt; the hot pressing assembly is used for carrying out hot pressing on the five-in-one material belt attached with the GDL sheet and forming a seven-in-one material belt; and the cutting assembly is used for cutting the seven-in-one material belt into a plurality of seven-in-one assemblies.

Description

Technical Field

[0001] The present application relates to the field of fuel cell manufacturing technology, and specifically to a seven-in-one preparation device and method. Background Art

[0002] The core component of the fuel cell is the MEA (Membrane Electrode Assembly), also known as a seven-in-one assembly. The seven-in-one assembly includes a CCM (catalyst coated membrane, catalyst / proton exchange membrane assembly) attached to the frame on both sides of the CCM and a gas diffusion layer (GDL). When preparing the seven-in-one assembly, a sheet-like five-in-one assembly and a sheet-like GDL are first prepared, and then the sheet-like GDL is attached to both sides of the sheet-like five-in-one assembly to form a seven-in-one assembly. However, in the prior art, the production efficiency of the sheet-like GDL attached to both sides of the sheet-like five-in-one assembly is low, and it cannot match the production rhythm of the entire production line, and thus cannot meet the demand for increasing production capacity. Summary of the invention

[0003] Based on this, it is necessary to provide a seven-in-one preparation device and method that can improve the production efficiency of seven-in-one components to address the above problems.

[0004] A seven-in-one preparation device, comprising:

[0005] A sheet making component, used for cutting the GDL layer on the GDL material strip into a plurality of GDL sheets;

[0006] The first conveying assembly and the second conveying assembly are both used to receive and convey the GDL sheet cut by the sheet making assembly;

[0007] The first unwinding component is used for unwinding and outputting the five-in-one material tape;

[0008] A glue dispensing component, used for dispensing glue on the upper surface of the five-in-one material strip;

[0009] A laminating component, used for simultaneously sucking the M GDL sheets on the first conveying component and laminating them to the upper surface of the five-in-one material belt; M is a positive integer greater than or equal to 2;

[0010] A glue dispensing and laminating component is used to receive the M GDL sheets conveyed by the second conveying component and to dispense glue on the upper surfaces of the M GDL sheets; the glue dispensing and laminating component can be controlled to move below the five-in-one material belt and laminat the M GDL sheets to the lower surface of the five-in-one material belt;

[0011] A hot pressing assembly, used for hot pressing the five-in-one material strip attached with the GDL sheet to form a seven-in-one material strip; and

[0012] A cutting assembly is arranged downstream of the hot pressing assembly and is used for cutting the seven-in-one material strip into a plurality of seven-in-one assemblies.

[0013] In some embodiments, the film-making assembly includes a first unwinding mechanism, a second unwinding mechanism, a compounding mechanism, a cutting mechanism, and a first winding mechanism;

[0014] The first unwinding mechanism is used to unwind and output the GDL material strip to the compounding mechanism, the second unwinding mechanism is used to unwind and output the first base film to the compounding mechanism, and the compounding mechanism is used to compound the GDL material strip passing through with the first base film to form a first composite material strip; the cutting mechanism is arranged downstream of the compounding mechanism, and is used to cut the GDL material strip on the first composite material strip passing through to form a plurality of GDL sheets, and the first winding mechanism is arranged downstream of the cutting mechanism, and is used to wind up the first base film;

[0015] The seven-in-one preparation equipment also includes a first transfer component, which is used to absorb the GDL on the first composite material strip passing between the cutting mechanism and the first winding mechanism, and transfer the absorbed GDL sheet to the first conveying component and the second conveying component.

[0016] In some embodiments, the glue dispensing and bonding assembly includes a glue dispensing mechanism, a glue dispensing conveying mechanism and a bonding mechanism. The glue dispensing mechanism is used to receive the M GDL sheets conveyed by the second conveying assembly, and to perform glue dispensing on the upper surface of each of the received GDL sheets; the glue dispensing and conveying mechanism is used to transfer the M GDL sheets on the glue dispensing mechanism to the bonding mechanism. The bonding mechanism can be moved in a controlled manner to the bottom of the five-in-one material belt, and drive the M GDL sheets to rise to bond with the lower surface of the five-in-one material belt.

[0017] In some embodiments, the dispensing mechanism includes a bearing part and a dispensing part, the bearing part includes a transfer seat and M second correction platforms arranged on the transfer seat, each of the second correction platforms is used to carry the GDL sheet, and can be controlled to be adjusted in position relative to the transfer seat.

[0018] In some embodiments, the dispensing mechanism also includes a second visual positioning mechanism communicatively connected to each of the second deflection correction platforms, the second visual positioning mechanism is used to detect the position of the GDL sheet on each of the second deflection correction platforms, and each of the second deflection correction platforms is used to adjust its position according to the detection result of the second visual positioning mechanism.

[0019] In some embodiments, the GDL material strip includes a backing film and a GDL layer disposed on one side surface of the backing film, and the GDL layer includes a plurality of sections arranged along the length direction of the backing film;

[0020] The film-making component also includes a second winding mechanism, which is used to wind up the back film of the GDL material strip that has passed through the composite mechanism, so that the GDL layer of the GDL material strip is composited with the first base film to form the first composite material strip; the cutting mechanism cuts the GDL layer passing through to form a plurality of GDL sheets arranged along the width direction of the first base film.

[0021] In some embodiments, the first conveying assembly includes a first reversing belt and a first adjustable-distance belt, the first reversing belt is used to receive the plurality of GDL sheets transferred by the first transfer assembly, so that the GDL sheets on the first reversing belt are arranged at intervals along a preset direction, the conveying direction of the first reversing belt is parallel to the preset direction, and the preset direction is parallel to the width direction of the first bottom film;

[0022] The first adjustable-distance belt is used to receive the GDL sheets conveyed by the first reversing belt, and to adjust the spacing between each GDL sheet during the conveying along the preset direction, so that every M GDL sheets form a group, and the distance between two adjacent GDL sheets in the same group is a preset distance. The bonding component is used to simultaneously absorb the M GDL sheets in the same group on the first adjustable-distance belt.

[0023] In some embodiments, the second conveying assembly includes a second reversing belt and a second adjustable-distance belt, the second reversing belt is used to receive the plurality of GDL sheets transferred by the first transfer assembly, so that the GDL sheets on the second reversing belt are arranged at intervals along a preset direction, the conveying direction of the second reversing belt is parallel to the preset direction, and the preset direction is parallel to the width direction of the first bottom film;

[0024] The second adjustable-distance belt is used to receive the GDL sheets conveyed by the second reversing belt, and to adjust the spacing between each GDL sheet during the conveying along the preset direction, so that every M GDL sheets form a group, and the distance between two adjacent GDL sheets in the same group is a preset distance. The glue dispensing and laminating component is used to simultaneously absorb the M GDL sheets in the same group on the second adjustable-distance belt.

[0025] A seven-in-one preparation method, comprising the following steps:

[0026] Cutting the GDL layer on the GDL material strip into a plurality of GDL sheets, and conveying the GDL sheets to the first conveying assembly and the second conveying assembly respectively;

[0027] Dispensing glue on the upper surface of each of the GDL sheets on the second conveying assembly;

[0028] Apply glue to the upper surface of the five-in-one material strip;

[0029] Simultaneously attaching the M GDL sheets on the first conveying assembly to the upper surface of the five-in-one material belt;

[0030] Simultaneously attaching the M GDL sheets on the second conveying assembly to the lower surface of the five-in-one material belt;

[0031] Hot pressing the five-in-one material strip and the GDL sheets attached to the upper and lower sides of the five-in-one material strip to form a seven-in-one material strip;

[0032] The seven-in-one material strip is cut into a plurality of seven-in-one components.

[0033] In some embodiments, when the GDL sheet is transferred to the first conveyor assembly:

[0034] The first conveying component adjusts the spacing between the GDL sheets thereon so that every M GDL sheets form a group, and the distance between two adjacent GDL sheets in the same group is a preset distance.

[0035] In some embodiments, the step of simultaneously attaching the M GDL sheets on the first conveying assembly to the upper surface of the five-in-one material belt specifically includes:

[0036] At the same time, the M GDL sheets in the same group on the first conveying assembly are sucked and turned 180°;

[0037] At the same time, the M GDL sheets flipped 180° are sucked and attached to the upper surface of the five-in-one material strip.

[0038] In some embodiments, when the GDL sheet is transferred to the second conveyor assembly:

[0039] The second conveying assembly adjusts the spacing between the GDL sheets thereon so that every M GDL sheets form a group, and the distance between two adjacent GDL sheets in the same group is a preset distance.

[0040] When the above-mentioned seven-in-one preparation equipment and method are actually used, the film-making component cuts the GDL layer on the GDL tape into multiple GDL sheets, and provides them to the first conveying component and the second conveying component. The first conveying component and the second conveying component convey the GDL sheets they carry in sequence. At the same time, the first unwinding component unwinds and outputs the five-in-one tape. On the upper surface of the five-in-one tape, the glue dispensing component dispenses glue, and the bonding component simultaneously absorbs the M GDL sheets on the first conveying component each time, and bonds the M GDL sheets absorbed at the same time to the upper surface of the five-in-one tape, that is, the M GDL sheets are pre-fixed by the glue on the upper surface of the five-in-one tape. The glue dispensing and bonding component simultaneously receives the M GDL sheets conveyed by the second conveying component, dispenses glue on the upper surfaces of the M GDL sheets, and then bonds them to the lower surface of the five-in-one tape. Then, the five-in-one material strip with the GDL sheets attached to the upper and lower surfaces is hot-pressed to form a seven-in-one material strip, and the seven-in-one material strip is cut to form a plurality of seven-in-one components.

[0041] In this way, the five-in-one material strip is a multi-column continuous material strip, and GDL sheets are bonded to the upper and lower surfaces of the five-in-one material strip for multiple times. Each time, M GDL sheets are bonded to the upper and lower surfaces of the five-in-one material strip, thereby greatly improving the bonding efficiency. The bonding rhythm can reach more than 40ppm, which can better match the production rhythm of the entire production line and better meet the needs of increasing production capacity. BRIEF DESCRIPTION OF THE DRAWINGS

[0042] Figure 1 This is a schematic structural diagram of a portion of a seven-in-one preparation device in an embodiment of the present application;

[0043] Figure 2 for Figure 1 A schematic structural diagram of another part of the seven-in-one preparation device shown;

[0044] Figure 3 for Figure 2 The seven-in-one preparation device shown has a partial structural schematic diagram;

[0045] Figure 4 for Figure 2 The structural schematic diagram of the dispensing mechanism of the seven-in-one preparation equipment shown;

[0046] Figure 5 for Figure 4 A schematic diagram of the detection position of the second visual positioning mechanism of the dispensing mechanism shown;

[0047] Figure 6 for Figure 2 A schematic structural diagram of a cutting assembly of a seven-in-one preparation device is shown;

[0048] Figure 7This is a flow chart of the steps of the seven-in-one preparation method in one embodiment of the present application. DETAILED DESCRIPTION

[0049] In order to make the above-mentioned purposes, features and advantages of the present application more obvious and easy to understand, the specific implementation methods of the present application are described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the present application. However, the present application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the present application, so the present application is not limited by the specific embodiments disclosed below.

[0050] In the description of the present application, 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 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 application and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0051] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of this application, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0052] In this application, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0053] In the present application, unless otherwise clearly specified and limited, a first feature being “above” or “below” a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being “above”, “above”, and “above” a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being “below”, “below”, and “below” a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0054] 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 a central 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 a central element at the same time. The terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used herein are for illustrative purposes only and are not intended to be the only implementation method.

[0055] See also Figures 1 to 3 The present application provides a seven-in-one preparation device, including a film-making component 10, a first conveying component 20, a second conveying component 30, a first unwinding component 40 (see Figure 3), glue dispensing assembly 50, laminating assembly 60, glue dispensing laminating assembly 70, hot pressing assembly 80 and cutting assembly 90. The film-making assembly 10 is used to cut each GDL layer on the GDL material tape a1 into multiple GDL sheets a41. The first conveying assembly 20 and the second conveying assembly 30 are both used to receive and convey the GDL sheets a41 cut by the film-making assembly 10. The first unwinding assembly 40 is used to unwind and output the five-in-one material tape a5 downstream. During the conveying process, one side surface of the five-in-one material tape a5 faces upward (i.e., the upper side surface), and the other side surface faces downward (i.e., the lower side surface). The glue dispensing assembly 50 is used to dispense glue to the upper side surface of the five-in-one material tape a5. The laminating assembly 60 is used to simultaneously absorb M GDL sheets a41 on the first conveying assembly 20 and laminate them to the upper side surface of the five-in-one material tape a5. The glue-dispensing and laminating component 70 is used to receive the M GDL sheets a41 conveyed by the second conveying component 30, and to dispense glue on the upper surfaces of the M GDL sheets a41. The glue-dispensing and laminating component 70 can be controlled to move to the bottom of the five-in-one material belt a5, and drive the M GDL sheets a41 thereon to rise to fit with the lower surface of the five-in-one material belt a5, and then descend, so that the M GDL sheets a41 on the glue-dispensing and laminating component 70 fit with the lower surface of the five-in-one material belt a5. The hot pressing component 80 is used to hot press the five-in-one material belt a5 with the GDL sheets a41, so that the glue layers between the five-in-one material belt a5 and the GDL sheets a41 on its upper and lower surfaces are activated by pressure and heat, and then the five-in-one material belt a5 and the GDL sheets a41 on its upper and lower surfaces are bonded and compounded to form the seven-in-one material belt a9. The cutting assembly 90 is arranged downstream of the hot pressing assembly 80 and is used to cut the seven-in-one material strip a9 formed by hot pressing into multiple seven-in-one components.

[0056] In actual use, the film-making component 10 cuts the GDL layer on the GDL tape a1 into multiple GDL sheets a41, and provides them to the first conveying component 20 and the second conveying component 30. The first conveying component 20 and the second conveying component 30 convey the GDL sheets a41 carried by each of them in sequence. At the same time, the first unwinding component 40 unwinds and outputs the five-in-one tape a5. On the upper surface of the five-in-one tape a5, the glue dispensing component 50 dispenses glue, and the laminating component 60 simultaneously absorbs the M GDL sheets a41 on the first conveying component 20 each time, and adheres the M GDL sheets a41 absorbed at the same time to the upper surface of the five-in-one tape a5, that is, the M GDL sheets a41 are pre-fixed by using the glue dispensed on the upper surface of the five-in-one tape a5. The glue-dispensing and laminating assembly 70 simultaneously receives the M GDL sheets a41 conveyed by the second conveying assembly 30, and applies glue to the upper surfaces of the M GDL sheets a41 before laminating them to the lower surface of the five-in-one material strip a5. Then, the five-in-one material strip a5 with the GDL sheets a41 laminating the upper and lower surfaces is hot-pressed to form a seven-in-one material strip a9, and the seven-in-one material strip a9 is cut to form a plurality of seven-in-one assemblies.

[0057] In this way, the five-in-one material strip a5 is a multi-column continuous material strip, and the GDL sheets a41 are bonded to the upper and lower surfaces of the five-in-one material strip a5 for multiple times, and M GDL sheets a41 are bonded to the upper and lower surfaces of the five-in-one material strip a5 each time, thereby greatly improving the bonding efficiency, and the bonding rhythm can reach more than 40ppm, which can better match the production rhythm of the entire production line and better meet the needs of increasing production capacity.

[0058] It should be noted that since the various GDL sheets a41 are not transported or transferred in a stacked state during the entire process of preparing the seven-in-one component, there is no risk of multiple sheets (i.e., at least two GDL sheets a41 are stacked and bonded together), and there is no need to take anti-multiple sheet measures, thereby simplifying the process flow and operation, and is conducive to improving product yield.

[0059] See also Figure 1 As shown, in an embodiment of the present application, the film-making assembly 10 includes a first unwinding mechanism 11, a second unwinding mechanism 12, a compounding mechanism 15, a cutting mechanism 16 and a first winding mechanism 13. The first unwinding mechanism 11 is used to unwind and output the GDL material strip a1 to the compounding mechanism 15. The second unwinding mechanism 12 is used to unwind and output the first bottom film a2 to the compounding mechanism 15. The compounding mechanism 15 is used to compound the GDL material strip a1 passing through with the first bottom film a2 and form a first composite material strip a4. The cutting mechanism 16 is arranged downstream of the compounding mechanism 15, and is used to cut the GDL material strip a1 on the first composite material strip a4 passing through to form a plurality of GDL sheets a41. The first winding mechanism 13 is arranged downstream of the cutting mechanism 16, and is used to wind up the first bottom film a2. The seven-in-one preparation equipment also includes a first transfer component 18, which is used to absorb the GDL sheet a41 on the first composite material strip a4 passing between the cutting mechanism 16 and the first winding mechanism 13, and transfer the absorbed GDL sheet a41 to the first conveying component 20 and the second conveying component 30. In this way, the first supporting film a2 is used to support the GDL sheet a41 cut from the GDL material strip a1, so that the first transfer component 18 can absorb each GDL sheet a41 and realize the transfer of the GDL sheet a41. Optionally, the first transfer component 18 can use a suction cup manipulator.

[0060] Specifically in the embodiment, the GDL material strip a1 includes a back film a3 and a GDL layer arranged on one side surface of the back film a3. The GDL layer includes multiple sections arranged along the length direction of the back film a3. The film-making component 10 also includes a second winding mechanism 14, which is used to wind up the back film a3 of the GDL material strip a1 wound by the composite mechanism 15, so that the GDL layer of the GDL material strip a1 is composited with the first base film a2 to form a first composite material strip a4. The cutting mechanism 16 cuts a section of the GDL layer passing through to form a plurality of GDL sheets a41 arranged along the width direction of the first base film a2. In this way, the cutting mechanism 16 can cut a section of the GDL layer passing through into a plurality of GDL sheets a41 arranged in sequence along the preset direction X each time.

[0061] Optionally, the first conveying assembly 20 includes a first reversing belt 21 and a first adjustable-distance belt 22. The first reversing belt 21 is used to receive a plurality of GDL sheets a41 transferred by the first transfer assembly 18, so that the GDL sheets a41 on the first reversing belt 21 are arranged at intervals along a preset direction X. The conveying direction of the first reversing belt 21 is parallel to the preset direction X, and the preset direction X is parallel to the width direction of the first base film a2. The first adjustable-distance belt 22 is used to receive the GDL sheets a41 conveyed by the first reversing belt 21, and adjust the spacing between the GDL sheets a41 during the conveying process along the preset direction X, so that each M GDL sheets a41 form a group, and the distance between two adjacent GDL sheets a41 in the same group is a preset distance. The laminating assembly 60 is used to simultaneously absorb the M GDL sheets a41 in the same group on the first adjustable-distance belt 22. In this way, the function of the first reversing belt 21 is to change the conveying direction (i.e., reversing) of each GDL sheet a41, so that each GDL sheet a41 transferred from the first supporting film a2 is arranged in sequence along the preset direction X, and is conveyed along the preset direction X. The function of the first adjustable belt 22 is to adjust the distance of each GDL sheet a41 thereon by controlling the speed difference and other means, so that every M GDL sheets a41 on the first adjustable belt 22 is a group, and the distance between two adjacent GDL sheets a41 in the same group is a preset distance, so as to ensure that the laminating component 60 can simultaneously absorb the M GDL sheets a41 in the same group on the first adjustable belt 22. It should be noted that the first transfer component 18 can use a vacuum suction cup manipulator, as long as it can realize the transfer of multiple GDL sheets a41 on the first supporting film a2 to the first reversing belt 21 and the second reversing belt 31, and no special limitation is made here.

[0062] It should be noted that the first reversing belt 21 and the first adjustable distance belt 22 can adopt relatively mature existing technologies, as long as they can achieve the functions of reversing and changing distance, and are not limited here. The value of the preset distance can be set according to the requirements of the dispensing process and is not limited here.

[0063] Optionally, the second conveying assembly 30 includes a second reversing belt 31 and a second adjustable-distance belt 32. The second reversing belt 31 is used to receive a plurality of GDL sheets a41 transferred by the first transfer assembly 18, so that each GDL sheet a41 on the second reversing belt 31 is arranged in sequence along a preset direction X. The conveying direction of the second reversing belt 31 is parallel to the preset direction X, and the preset direction X is parallel to the width direction of the first support film a2 (i.e., Figure 1 The second adjustable-distance belt 32 is used to receive the GDL sheets a41 conveyed by the second reversing belt 31, and to adjust the spacing between the GDL sheets a41 during the conveying process along the preset direction X, so that every M GDL sheets a41 form a group, and the distance between two adjacent GDL sheets a41 in the same group is a preset distance. The glue-dispensing laminating component 70 is used to simultaneously absorb the M GDL sheets a41 in the same group on the second adjustable-distance belt 32. In this way, the function of the second reversing belt 31 is to change the conveying direction (i.e., reversing) of each GDL sheet a41, so that the various GDL sheets a41 transferred from the first base film a2 are arranged in sequence along the preset direction X, and are conveyed along the preset direction X. The function of the second adjustable-distance belt 32 is to adjust the distance of each GDL piece a41 thereon by controlling the speed difference and other means, so that every M GDL pieces a41 on the second adjustable-distance belt 32 form a group, and the distance between two adjacent GDL pieces a41 in the same group is a preset distance, so as to ensure that the glue-dispensing and laminating component 70 can simultaneously absorb the M GDL pieces a41 in the same group on the second adjustable-distance belt 32.

[0064] It should be noted that the second reversing belt 31 and the second adjustable distance belt 32 can adopt relatively mature existing technologies, as long as they can achieve the functions of reversing and changing distance, and are not limited here. The value of the preset distance can be set according to the needs of the dispensing process and is not limited here.

[0065] See also Figure 2 As shown, in an embodiment of the present application, the laminating component 60 includes a flipping mechanism 61 and a conveying mechanism 62. The flipping mechanism 61 is used to simultaneously absorb the M GDL sheets a41 in the same group on the first spacing belt 22, and flip the absorbed M GDL sheets a41 by 180°, so that the surface to be laminated with the upper surface of the five-in-one material belt a5 faces downward, so that the two can be laminated later. The conveying mechanism 62 is used to simultaneously absorb the M GDL sheets a41 after flipping 180°, and simultaneously laminate the absorbed M GDL sheets a41 to the upper surface of the five-in-one material belt a5, so that the M GDL sheets a41 are all glued to the upper surface of the five-in-one material belt a5 through the glue dispensed on the upper surface of the five-in-one material belt a5.

[0066] Furthermore, the laminating component 60 also includes a first visual positioning mechanism 63. The conveying mechanism 62 has M first deflection correction platforms, each of which is used to absorb and fix the GDL sheet a41, and can controllably drive the absorbed GDL sheet a41 to adjust its position. When the conveying mechanism 62 transfers the M GDL sheets a41 on the flipping mechanism 61, it can pass through the first visual positioning mechanism 63, and the first visual positioning mechanism 63 is used to detect the position of the GDL sheets a41 on each first deflection correction platform. Each first deflection correction platform is used to adjust its position according to the detection result of the first visual positioning mechanism 63, so as to ensure that the M GDL sheets a41 can be accurately laminated to the upper surface of the five-in-one material strip a5, that is, the laminating position accuracy meets the process requirements.

[0067] See also Figure 1 and Figure 2 As shown, in the embodiment of the present application, the glue dispensing and laminating assembly 70 includes a glue dispensing mechanism 73, a glue dispensing and conveying mechanism 78, and a laminating mechanism 79. The glue dispensing mechanism 73 is used to carry the M GDL sheets a41 conveyed by the second adjustable distance belt 32, and to dispense glue on the upper surface of the M GDL sheets a41 received. The glue dispensing and conveying mechanism 78 is used to transfer the M GDL sheets a41 that have been glued to the laminating mechanism 79. The laminating mechanism 79 can be controlled to move to the bottom of the five-in-one material belt a5 unwound and output by the first unwinding assembly 40, and can controllably drive the M GDL sheets a41 to rise to be bonded with the lower surface of the five-in-one material belt a5. In this way, in actual use, first, the glue dispensing mechanism 73 receives the M GDL sheets a41 conveyed by the first adjustable-distance belt 22; then, the glue dispensing mechanism 73 dispenses glue on the upper surfaces of the M GDL sheets a41 thereon; after the glue dispensing is completed, the glue dispensing conveying mechanism 78 transfers the M GDL sheets a41 that have completed the glue dispensing to the bonding mechanism 79, so that the surface of each GDL sheet a41 with the glue dispensing is facing upward; then, the bonding mechanism 79 moves to the bottom of the five-in-one material tape a5 unwound and output by the first unwinding component 40; then, the bonding mechanism 79 drives the M GDL sheets a41 thereon to rise until the M GDL sheets a41 are bonded to the lower surface of the five-in-one material tape a5 (that is, each GDL sheet a41 is bonded to the lower surface of the five-in-one material tape a5 by glue dispensing).

[0068] Furthermore, the glue dispensing assembly 50 also includes a glue dispensing detection mechanism 74 and a detection and transport mechanism 76. The detection and transport mechanism 76 is used to transfer the M GDL sheets a41 on the glue dispensing mechanism 73 to the glue dispensing detection mechanism 74, and the glue dispensing detection mechanism 74 is used to detect the glue on the M GDL sheets a41 thereon. The glue dispensing transport mechanism 78 is used to transfer the M GDL sheets a41 on the glue dispensing detection mechanism 74 to the bonding mechanism 79.

[0069] Furthermore, the glue dispensing assembly 50 further includes a patch conveying mechanism 77, which is used to transfer the GDL sheets a41 on the second reversing belt 31 between the glue dispensing mechanism 73 and the glue dispensing detection mechanism 74 in sequence. When the glue dispensing detection mechanism 74 detects that there are defective products among the M GDL sheets a41, the glue dispensing conveying mechanism 78 transfers the defective products to the waste collection box. At this time, the patch conveying mechanism 77 transfers the GDL sheets a41 on the second reversing belt 31 to the glue dispensing mechanism 73 and the glue dispensing detection mechanism 74 in sequence, thereby ensuring that there are M GDL sheets a41 with qualified glue dispensing on the glue dispensing detection mechanism 74.

[0070] Furthermore, the glue dispensing assembly 50 also includes a second transfer mechanism 75, which is used to simultaneously absorb M GDL sheets a41 in the same group on the second adjustable belt 32, and transfer the absorbed M GDL sheets a41 to the glue dispensing mechanism 73.

[0071] It should be noted that the second transfer mechanism 75 can use a vacuum suction cup manipulator, the detection and transport mechanism 76 can also use a vacuum suction cup manipulator, and the dispensing and transport mechanism 78 can also use a vacuum suction cup manipulator. Since only part of the upper surface of each GDL sheet a41 on the dispensing mechanism 73 is glued, in order to avoid damage to the glued area, the second transfer mechanism 75, the detection and transport mechanism 76 and the dispensing and transport mechanism 78 absorb the part of the upper surface of the GDL sheet a41 that is not glued.

[0072] See also Figure 4 As shown, specifically in the embodiment, the glue dispensing mechanism 73 includes a bearing part 731 and a glue dispensing part 732, and the bearing part 731 includes a transfer seat 7310 and M second deviation correction platforms 7311 arranged on the transfer seat 7310. Each second deviation correction platform 7311 is used to carry the GDL sheet a41, and can be controlled to adjust the position relative to the transfer seat 7310, that is, each second deviation correction platform 7311 can independently drive its own GDL sheet a41 for deviation correction, so as to ensure that the position accuracy of the glue dispensing part 732 on each GDL sheet a41 meets the process requirements.

[0073] Furthermore, the glue dispensing mechanism 73 also includes a second visual positioning mechanism 733 communicatively connected to each second deviation correction platform 7311. The second visual positioning mechanism 733 is used to detect the position of the GDL sheet a41 on each second deviation correction platform 7311. Each second deviation correction platform 7311 is used to adjust the position according to the detection result of the second visual positioning mechanism 733 to ensure that the glue dispensing accuracy of the glue dispensing part 732 on each GDL sheet a41 meets the process requirements. Optionally, the second visual positioning mechanism 733 can use a CCD (charge coupled device) camera.

[0074] It should be noted that, in one embodiment, the second visual positioning mechanism 733 detects the positions of the two diagonal corners of the GDL sheet a41 on each second deviation correction platform 7311 to determine the position of the GDL sheet a41. Figure 5 In the illustrated embodiment, M=4, the second visual positioning mechanism 733 includes 5 CCD cameras, the first CCD camera detects the position of the upper left corner of the first GDL piece a41, the second CCD camera detects the position of the lower right corner of the first GDL piece a41 and the position of the upper right corner of the second GDL piece a41, the third CCD camera detects the position of the lower left corner of the second GDL piece a41 and the position of the upper left corner of the third GDL piece a41, the fourth CCD camera detects the position of the lower right corner of the third GDL piece a41 and the position of the upper right corner of the fourth GDL piece a41, and the fifth CCD camera detects the position of the lower left corner of the fourth GDL piece a41. Of course, the second visual positioning mechanism 733 may also adopt other position detection methods, as long as the position of each GDL piece a41 can be detected, and it is not limited here.

[0075] Please continue to see Figure 1 and Figure 2 Furthermore, the dispensing mechanism 73 also includes a third visual positioning mechanism 791 that is communicatively connected to the bonding mechanism 79. The third visual positioning mechanism 791 is used to detect the positions of the M GDL sheets a41 on the bonding mechanism 79, and the bonding mechanism 79 can adjust the positions (i.e., correct the deviation) of the M GDL sheets a41 thereon according to the detection results of the second visual positioning mechanism 733, thereby ensuring that the M GDL sheets a41 on the bonding mechanism 79 can be accurately bonded to the lower surface of the five-in-one material strip a5.

[0076] See also Figure 6 As shown, in the embodiment of the present application, the cutting assembly 90 includes a mounting frame 91, a bottom roller 92 and an engraving roller cutter 93. The bottom roller 92 is rotatably mounted on the mounting frame 91. The engraving roller cutter 93 is arranged on the mounting frame 91, and a cutting gap is formed between the engraving roller cutter 93 and the bottom roller 92 for the seven-in-one material strip a9 to pass through. The engraving roller cutter 93 can be controlled to rotate around its own axis to cooperate with the bottom roller 92 to cut the seven-in-one material strip a9 passing through the cutting gap, thereby forming a plurality of seven-in-one assemblies.

[0077] It should be noted that the rotation of the engraving roller 93 relative to the mounting frame 91 can be driven by a driving mechanism 94 that outputs a rotating motion such as a motor. The engraving roller 93 can be driven to rise and fall relative to the bottom roller 92 by a linear drive assembly 95, thereby adjusting the distance between the engraving roller 93 and the bottom roller 92, facilitating the threading action, and maintaining the position of the engraving roller 93 to protect the parts from collision damage. The specific structure of the cutting assembly 90 can adopt relatively mature existing technologies, as long as it can achieve the cutting of the seven-in-one material strip a9, and is not particularly limited here.

[0078] See also Figure 3 As shown, further, the seven-in-one preparation equipment also includes a second unwinding component 41, a film assembly 43, a second winding component 42 and a blanking component (not shown). The second unwinding component 41 is used to unwind and output the second base film a6 to the film assembly 43. The film assembly 43 is arranged upstream of the cutting component 90, and is used to compound the seven-in-one material strip a9 passing through with the second base film a6 to form a second composite material strip a7. The cutting component 90 cuts the seven-in-one material strip a9 in the second composite material strip a7 to form multiple seven-in-one components on the second base film a6. The second winding component 42 is arranged downstream of the cutting component 90, and is used to wind up the second base film a6. The blanking component is used to blank each seven-in-one component on the second base film a6 passing between the cutting component 90 and the second winding component 42.

[0079] It should be noted that the cutting assembly 90 uses an engraved roller cutter 93 for cutting. For small-sized waste materials of regular shapes such as round, a waste discharge channel is designed inside the engraved roller cutter 93. During cutting, the waste materials enter the engraved roller cutter 93 and are sucked and collected by the fan. For large-sized irregular waste materials, they are attached to the second support film a6 and rolled up onto the second winding assembly 42 along with the second support film a6.

[0080] Based on the above-mentioned seven-in-one preparation device, the present application also provides a seven-in-one preparation method. The seven-in-one preparation method comprises the following steps:

[0081] S10, cutting the GDL layer on the GDL material strip a1 into a plurality of GDL sheets a41, and conveying the GDL sheets a41 to the first conveying assembly 20 and the second conveying assembly 30 respectively. Specifically, the first unwinding mechanism 11 unwinds and outputs the GDL material strip a1 to the compounding mechanism 15, the second unwinding mechanism 12 unwinds and outputs the first bottom film a2 to the compounding mechanism 15, the second rewinding mechanism 14 is used to rewind the back film a3 of the GDL material strip a1, and the compounding mechanism 15 is used to compound the GDL layer of the GDL material strip a1 with the first bottom film a2 to form a first composite material strip a4. The cutting mechanism 16 cuts the GDL layer on the first composite material strip a4, and each cutting forms a plurality of GDL sheets a41 arranged along the width direction of the first bottom film a2 on the first bottom film a2. The first transfer assembly 18 is used to transfer the plurality of GDL sheets a41 on the first bottom film a2 to the first reversing belt 21 and the second reversing belt 31. The first winding mechanism 13 is used to wind up the first base film a2. It is understandable that the waste part and the unqualified part of the GDL layer are rolled up onto the first winding mechanism 13 along with the first base film a2.

[0082] S20, glue is applied to the upper surface of each GDL sheet a41 on the second conveying assembly 30. Specifically, the second transfer mechanism 75 transfers the M GDL sheets a41 of the same group conveyed by the second adjustable belt 32 to the M second deviation correction platforms 7311 of the bearing portion 731. The second visual positioning mechanism 733 performs position detection on the M GDL sheets a41 on the M second deviation correction platforms 7311, and each second deviation correction platform 7311 independently adjusts the position (i.e., corrects the deviation) of the M GDL sheets a41 according to the detection result of the second visual positioning mechanism 733. After the deviation correction is completed, the detection and transport mechanism 76 transfers the GDL sheets a41 on each second deviation correction platform 7311 to the glue application detection mechanism 74 for glue application detection. After the detection is completed, the glue application transport mechanism 78 transfers the M GDL sheets a41 on the glue application detection mechanism 74 to the bonding mechanism 79.

[0083] S30, using the glue dispensing component 50 to dispense glue on the upper surface of the five-in-one material tape a5 unwound and output by the first unwinding component 40.

[0084] S40, simultaneously attach the M GDL sheets a41 on the first conveying assembly 20 to the upper surface of the five-in-one material belt a5. Specifically, the flipping mechanism 61 simultaneously absorbs the M GDL sheets a41 in the same group on the first spacing belt 22, and flips the absorbed M GDL sheets a41 180°, so that the surface that needs to be attached to the upper surface of the five-in-one material belt a5 faces downward. The conveying mechanism 62 simultaneously absorbs the M GDL sheets a41 on the flipping mechanism 61, and moves to the top of the five-in-one material belt a5 unwound and output by the first unwinding assembly 40. After the conveying mechanism 62 is above the five-in-one material belt a5, the conveying mechanism 62 is controlled to drive the absorbed M GDL sheets a41 to descend to fit the upper surface of the five-in-one material belt a5, so that the M GDL sheets a41 are attached to the upper surface of the five-in-one material belt a5 by dispensing glue.

[0085] S50, the M GDL sheets a41 on the second conveying assembly 30 are simultaneously bonded to the lower surface of the five-in-one material belt a5. Specifically, the bonding mechanism 79 moves to the lower side of the five-in-one material belt a5 unwound by the first unwinding assembly 40, and drives the M GDL sheets a41 thereon to rise to bond with the lower surface of the five-in-one material belt a5, so that the M GDL sheets a41 are bonded to the lower surface of the five-in-one material belt a5 by dispensing glue.

[0086] S60, hot pressing the five-in-one material strip a5 and the GDL sheets a41 attached to the upper and lower sides of the five-in-one material strip a5 to form a seven-in-one material strip a9.

[0087] S70, cutting the seven-in-one material strip a9 into a plurality of seven-in-one components.

[0088] It should be noted that the above steps are not limited to being executed in the order of S10 to S70, but may also be executed in other orders. For example, the order of step S20 and step S30 may be reversed or executed simultaneously, and the order of S40 and S50 may also be reversed or executed simultaneously. No special limitation is made here.

[0089] Specifically in the embodiment, when the GDL sheet a41 is transported to the first conveying assembly 20:

[0090] The first reversing belt 21 receives each GDL sheet a41 transferred by the first transfer assembly 18, so that each GDL sheet a41 is arranged in sequence along a preset direction X, and is transported along the preset direction X;

[0091] The first spacing-adjustable belt 22 receives each GDL sheet a41 conveyed by the first reversing belt 21, and adjusts the spacing between each GDL sheet a41 thereon, so that every M GDL sheets a41 form a group, and the distance between two adjacent GDL sheets a41 in the same group is a preset distance, so that the flipping mechanism 61 can simultaneously absorb the M GDL sheets a41 in the same group on the first spacing-adjustable belt 22.

[0092] Specifically in the embodiment, when the GDL sheet a41 is transported to the second conveying assembly 30:

[0093] The second reversing belt 31 receives each GDL sheet a41 transferred by the first transfer assembly 18, so that each GDL sheet a41 is arranged in sequence along a preset direction X, and is transported along the preset direction X;

[0094] The second spacing-adjusting belt 32 receives each GDL sheet a41 conveyed by the second reversing belt 31, and adjusts the spacing between each GDL sheet a41 thereon, so that every M GDL sheets a41 form a group, and the distance between two adjacent GDL sheets a41 in the same group is a preset distance, so that the M GDL sheets a41 in the same group on the first spacing-adjusting belt 22 can be simultaneously transferred to each second deviation correction platform 7311 of the bearing portion 731.

[0095] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described 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.

[0096] The above-described embodiments only express several implementation methods of the present application, and the descriptions thereof are relatively specific and detailed, but they cannot be construed as limiting the scope of the patent application. It should be pointed out that, for a person of ordinary skill in the art, several variations and improvements can be made without departing from the concept of the present application, and these all belong to the protection scope of the present application. Therefore, the protection scope of the patent application shall be subject to the attached claims.

Claims

1. A seven-in-one preparation device, characterized in that: include: A sheeting component (10) is used to cut the GDL layer on the GDL material strip (a1) into a plurality of GDL sheets (a4); A first conveying assembly (20) and a second conveying assembly (30), both used to receive and convey the GDL sheet (a4) cut by the sheet making assembly (10); A first unwinding component (40) is used for unwinding and outputting a five-in-one material tape (a5); A glue dispensing component (50), used for dispensing glue on the upper surface of the five-in-one material strip (a5); A laminating component (60) is used to simultaneously absorb the M GDL sheets (a4) on the first conveying component (20) and laminate them to the upper surface of the five-in-one material belt (a5); M is a positive integer greater than or equal to 2; A glue-dispensing and laminating component (70) is used to receive the M GDL sheets (a4) conveyed by the second conveying component (30) and to dispense glue on the upper surfaces of the M GDL sheets (a4); the glue-dispensing and laminating component (70) can be moved to the bottom of the five-in-one material belt (a5) in a controlled manner and laminar the M GDL sheets (a4) to the lower surface of the five-in-one material belt (a5); A hot pressing assembly (80) is used to hot press the five-in-one material strip (a5) attached with the GDL sheet (a4) to form a seven-in-one material strip (a9); and A cutting assembly (90) is arranged downstream of the hot pressing assembly (80) and is used to cut the seven-in-one material strip (a9) into a plurality of seven-in-one assemblies.

2. The seven-in-one preparation device according to claim 1, characterized in that: The film-making assembly (10) comprises a first unwinding mechanism (11), a second unwinding mechanism (12), a compounding mechanism (15), a cutting mechanism (16) and a first winding mechanism (13); The first unwinding mechanism (11) is used to unwind the GDL material strip (a1) to the composite mechanism (15), the second unwinding mechanism (12) is used to unwind the first base film (a2) to the composite mechanism (15), the composite mechanism (15) is used to composite the GDL material strip (a1) passing through with the first base film (a2) to form a first composite material strip (a4); the cutting mechanism (16) is arranged downstream of the composite mechanism (15), and is used to cut the GDL material strip (a1) on the first composite material strip (a4) passing through to form a plurality of GDL sheets (a4); the first winding mechanism (13) is arranged downstream of the cutting mechanism (16), and is used to wind up the first base film (a2); The seven-in-one preparation equipment also includes a first transfer component (18), which is used to absorb the GDL sheet (a4) on the first composite material strip (a4) passing between the cutting mechanism (16) and the first winding mechanism (13), and transfer the absorbed GDL sheet (a4) to the first conveying component (20) and the second conveying component (30).

3. The seven-in-one preparation device according to claim 1, characterized in that: The glue dispensing and bonding component (70) includes a glue dispensing mechanism (73), a glue dispensing and conveying mechanism (78) and a bonding mechanism (79). The glue dispensing mechanism (73) is used to receive the M GDL sheets (a4) conveyed by the second conveying component (30) and to dispense glue on the upper surface of each of the received GDL sheets (a4); the glue dispensing and conveying mechanism (78) is used to transfer the M GDL sheets (a4) on the glue dispensing mechanism (73) to the bonding mechanism (79). The bonding mechanism (79) can be moved to the bottom of the five-in-one material belt (a5) in a controlled manner and drive the M GDL sheets (a4) to rise to bond with the lower surface of the five-in-one material belt (a5).

4. The seven-in-one preparation device according to claim 3, characterized in that: The glue dispensing mechanism (73) comprises a bearing portion (731) and a glue dispensing portion (732); the bearing portion (731) comprises a transfer seat (7310) and M second deviation correction platforms (7311) arranged on the transfer seat (7310); each of the second deviation correction platforms (7311) is used to carry the GDL sheet (a4) and can be controlled to adjust its position relative to the transfer seat (7310).

5. The seven-in-one preparation device according to claim 4, characterized in that: The dispensing mechanism (73) also includes a second visual positioning mechanism (733) communicatively connected to each of the second deviation correction platforms (7311), and the second visual positioning mechanism (733) is used to detect the position of the GDL sheet (a4) on each of the second deviation correction platforms (7311), and each of the second deviation correction platforms (7311) is used to adjust the position according to the detection result of the second visual positioning mechanism (733).

6. The seven-in-one preparation device according to claim 2, characterized in that: The GDL material strip (a1) comprises a backing film (a3) ​​and a GDL layer arranged on one side surface of the backing film (a3), wherein the GDL layer comprises a plurality of sections arranged along the length direction of the backing film (a3); The film-making component (10) further comprises a second winding mechanism (14), wherein the second winding mechanism (14) is used for winding the back film (a3) ​​of the GDL material strip (a1) which has passed through the composite mechanism (15), so that the GDL layer of the GDL material strip (a1) is composited with the first backing film (a2) to form the first composite material strip (a4); the cutting mechanism (16) cuts the GDL layer passing through to form a plurality of GDL sheets (a4) arranged along the width direction of the first backing film (a2).

7. The seven-in-one preparation device according to claim 6, characterized in that: The first conveying assembly (20) comprises a first reversing belt (21) and a first adjustable-distance belt (22), the first reversing belt (21) being used to receive the plurality of GDL sheets (a4) transferred by the first transfer assembly (18), so that the GDL sheets (a4) on the first reversing belt (21) are arranged at intervals along a preset direction (X), the conveying direction of the first reversing belt (21) is parallel to the preset direction (X), and the preset direction (X) is parallel to the width direction of the first base film (a2); The first adjustable-distance belt (22) is used to receive the GDL sheets (a4) transported by the first reversing belt (21), and to adjust the spacing between each GDL sheet (a4) during the transportation along the preset direction (X), so that every M GDL sheets (a4) form a group, and the distance between two adjacent GDL sheets (a4) in the same group is a preset distance. The laminating component (60) is used to simultaneously absorb the M GDL sheets (a4) in the same group on the first adjustable-distance belt (22).

8. The seven-in-one preparation device according to claim 6, characterized in that: The second conveying assembly (30) comprises a second reversing belt (31) and a second adjustable-distance belt (32), the second reversing belt (31) being used to receive the plurality of GDL sheets (a4) transferred by the first transfer assembly (18), so that the GDL sheets (a4) on the second reversing belt (31) are arranged at intervals along a preset direction (X), the conveying direction of the second reversing belt (31) is parallel to the preset direction (X), and the preset direction (X) is parallel to the width direction of the first base film (a2); The second adjustable-distance belt (32) is used to receive the GDL sheets (a4) transported by the second reversing belt (31), and to adjust the spacing between each GDL sheet (a4) during the transportation along the preset direction (X), so that every M GDL sheets (a4) form a group, and the distance between two adjacent GDL sheets (a4) in the same group is a preset distance. The glue dispensing and laminating component (70) is used to simultaneously absorb the M GDL sheets (a4) in the same group on the second adjustable-distance belt (32).

9. A seven-in-one preparation method, characterized in that: The following steps are involved: Cutting the GDL layer on the GDL material strip (a1) into a plurality of GDL sheets (a4), and conveying the GDL sheets (a4) to a first conveying assembly (20) and a second conveying assembly (30), respectively; Applying glue to the upper surface of each of the GDL sheets (a4) on the second conveying assembly (30); Apply glue to the upper surface of the five-in-one material strip (a5); Simultaneously attaching the M GDL sheets (a4) on the first conveying assembly (20) to the upper surface of the five-in-one material belt (a5); Simultaneously attaching the M GDL sheets (a4) on the second conveying assembly (30) to the lower surface of the five-in-one material belt (a5); The five-in-one material strip (a5) and the GDL sheets (a4) attached to the upper and lower sides of the five-in-one material strip (a5) are hot pressed to form a seven-in-one material strip (a9); The seven-in-one material strip (a9) is cut into a plurality of seven-in-one components.

10. The seven-in-one preparation method according to claim 9, characterized in that: When the GDL sheet (a4) is transported to the first conveying assembly (20): The first conveying component (20) adjusts the spacing between the GDL sheets (a4) thereon so that every M GDL sheets (a4) form a group, and the distance between two adjacent GDL sheets (a4) in the same group is a preset distance.

11. The seven-in-one preparation method according to claim 10, characterized in that: The step of simultaneously attaching the M GDL sheets (a4) on the first conveying assembly (20) to the upper surface of the five-in-one material belt (a5) specifically includes: Simultaneously, the M GDL sheets (a4) in the same group on the first conveying assembly (20) are sucked up and turned over by 180°; At the same time, the M GDL sheets (a4) flipped 180° are sucked and attached to the upper surface of the five-in-one material strip (a5).

12. The seven-in-one preparation method according to claim 9, characterized in that: When the GDL sheet (a4) is transported to the second conveying assembly (30): The second conveying component (30) adjusts the spacing between the GDL sheets (a4) thereon so that every M GDL sheets (a4) form a group, and the distance between two adjacent GDL sheets (a4) in the same group is a preset distance.

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