Thermal transfer printing device

Abstract

The utility model discloses a heat transfer printing device, which comprises a transfer printing component, a heat transfer printing component and a heat transfer printing component, the first feeding assembly is suitable for providing a proton exchange membrane; the first feeding assembly comprises a plurality of first conveying rollers, a first deviation adjusting roller is arranged between at least two adjacent first conveying rollers, and the first deviation adjusting rollers are driven by a first driving assembly to move close to or away from the proton exchange membrane and abut against the proton exchange membrane all the time in the moving process; the first driving assembly comprises a first driving piece and two first lead screws; the output end of the first driving part is driven by the two first lead screws; the two first lead screws are arranged in the direction perpendicular to the length direction of the first deviation adjusting roller and oppositely arranged on the two sides of the first deviation adjusting roller. And each first lead screw is connected with the first deviation adjusting roller through a first nut seat. The technical problem that in the transfer printing process of an existing transfer printing device, when the positions of an anode transfer printing film, a cathode transfer printing film and a proton exchange film deviate, adjustment is difficult, and consequently transfer printing patterns are not aligned is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of fuel cells, in particular to a thermal transfer device. Background Art

[0002] The membrane electrode provides a continuous channel for protons, electrons, reaction gases and water for the electrochemical reaction of electrolysis of water to produce hydrogen, and is the focus of researchers' research, especially the research on its manufacturing process. The transfer method is to coat, print or spray the pre-prepared catalyst slurry onto a certain transfer medium, i.e., a transfer membrane, and then transfer the catalyst layer to the proton exchange membrane after drying to obtain a proton exchange membrane covered with a catalyst layer. Since the transfer method has removed the solvent before transfer, the proton exchange membrane will not swell, and the bonding force between the catalyst layer and the proton exchange membrane is strong. Therefore, the transfer method is considered to be a reliable method suitable for industrial continuous production of membrane electrodes. In the prior art, a transfer device is usually used to transfer the catalyst layers on the anode transfer membrane and the cathode transfer membrane to the two sides of the proton exchange membrane respectively.

[0003] The existing transfer device generally includes a transfer assembly, an anode supply assembly, a cathode supply assembly and a proton supply assembly. The anode transfer membrane, the cathode transfer membrane and the proton exchange membrane are provided by the anode supply assembly, the cathode supply assembly and the proton supply assembly, and the three are transferred through the transfer assembly to transfer the catalyst layer on the anode transfer membrane and the cathode transfer membrane to the two sides of the proton exchange membrane respectively. However, the anode transfer membrane, the cathode transfer membrane and the proton exchange membrane are usually manually adjusted and aligned before transfer. When the positions of the anode transfer membrane, the cathode transfer membrane and the proton exchange membrane deviate during the transfer process, it is difficult to adjust, resulting in misalignment of the transfer pattern, affecting the quality of the proton exchange membrane after the transfer is completed. Utility Model Content

[0004] The utility model provides a thermal transfer device, which solves the technical problem that the existing transfer device usually manually adjusts and aligns the anode transfer film, the cathode transfer film and the proton exchange membrane before transfer, and it is difficult to adjust the positions of the anode transfer film, the cathode transfer film and the proton exchange membrane when deviations occur during the transfer process, resulting in misalignment of the transfer pattern and affecting the quality of the proton exchange membrane after the transfer.

[0005] In view of this, the utility model provides a thermal transfer device, comprising:

[0006] A transfer assembly, suitable for transferring the catalyst layers on the anode transfer membrane and the cathode transfer membrane to the two sides of the proton exchange membrane respectively;

[0007] a first feeding assembly, adapted to provide the proton exchange membrane to the transfer assembly; the first feeding assembly comprises a plurality of first conveying rollers sequentially arranged along the conveying direction of the proton exchange membrane, a first deflection roller being arranged between at least two adjacent first conveying rollers, the first deflection roller being driven by a first driving assembly to move closer to or away from the proton exchange membrane, and always abutting against the proton exchange membrane during the movement;

[0008] The first driving assembly includes a first driving member and two first lead screws; the output end of the first driving member is driven by the two first lead screws, and is suitable for driving the two first lead screws to rotate synchronously; the two first lead screws are arranged perpendicular to the length direction of the first deflection roller, and are relatively arranged on both sides of the first deflection roller along the length direction of the first deflection roller; each of the first lead screws is provided with a first nut seat, and the two ends of the first deflection roller along its length direction are respectively connected to the two first nut seats.

[0009] Optionally, the first drive assembly also includes two first support seats, and the two first screws are rotatably arranged on the two first support seats; the end surfaces of the two first support seats facing each other are provided with first slide rails along the axial direction of the first screw, and the first nut seat is slidably connected to the first slide rail via a first slider.

[0010] Optionally, the first driving member includes a first driving motor and two first worm gear reducers; the two first worm gear reducers are respectively arranged on the two first supporting seats, and the output ends of the two first worm gear reducers are respectively drivingly connected to the two first lead screws, suitable for driving the first lead screws to rotate; the two first worm gear reducers are drivingly connected through the first transmission shaft, and the input end of one of the first worm gear reducers is drivingly connected to the output end of the first driving motor;

[0011] And / or, the first feeding assembly further comprises a first photoelectric detection element, and the first photoelectric detection element is communicatively connected with the first driving element; the first photoelectric detection element is located on the conveying path of the proton exchange membrane and is suitable for detecting the position of the proton exchange membrane.

[0012] Optionally, the first feed assembly further comprises a low inertia assembly, wherein the low inertia assembly is located on a conveying path of the proton exchange membrane and is suitable for adjusting the tension of the proton exchange membrane.

[0013] Optionally, it further includes a second feeding assembly, which is suitable for providing the anode transfer film to the transfer assembly; the second feeding assembly includes a plurality of second conveying rollers sequentially arranged along the conveying direction of the anode transfer film, and a second deflection roller is arranged between at least two adjacent second conveying rollers, and the second deflection roller is driven by a second driving assembly to move closer to or away from the anode transfer film, and always abuts against the anode transfer film during the movement;

[0014] The second driving assembly includes a second driving member and two second lead screws; the output end of the second driving member is driven by the two second lead screws, and is suitable for driving the two second lead screws to rotate synchronously; the two second lead screws are arranged perpendicular to the length direction of the second deflection roller, and are relatively arranged on both sides of the second deflection roller along the length direction of the second deflection roller; each second lead screw is provided with a second nut seat, and the two ends of the second deflection roller along its length direction are respectively connected to the two second nut seats.

[0015] Optionally, the second drive assembly also includes two second support seats, and two second screws are rotatably arranged on the two second support seats; second slide rails are provided on the end surfaces of the two second support seats facing each other along the axial direction of the second screw, and the second nut seat is slidably connected to the second slide rail via a second slider.

[0016] Optionally, the second driving member includes a second driving motor and two second worm gear reducers; the two second worm gear reducers are respectively arranged on the two second supporting seats, and the output ends of the two second worm gear reducers are respectively drivingly connected to the two second lead screws, suitable for driving the second lead screws to rotate; the two second worm gear reducers are drivingly connected through a second transmission shaft, and the input end of one of the second worm gear reducers is drivingly connected to the output end of the second driving motor;

[0017] And / or, the second feeding assembly further comprises a second photoelectric detection element, and the second photoelectric detection element is communicatively connected with the second driving element; the second photoelectric detection element is located on the conveying path of the anodic transfer film and is suitable for detecting the position of the anodic transfer film.

[0018] Optionally, it further comprises a third feeding assembly, which is suitable for providing the cathode transfer film to the transfer assembly; the third feeding assembly comprises a plurality of third conveying rollers arranged in sequence along the conveying direction of the cathode transfer film, a third deflection roller is arranged between at least two adjacent third conveying rollers, the third deflection roller is driven by a third driving assembly to move close to or away from the cathode transfer film, and always abuts against the cathode transfer film during the movement;

[0019] The third driving assembly includes a third driving member and two third lead screws; the output end of the third driving member is driven by the two third lead screws, and is suitable for driving the two third lead screws to rotate synchronously; the two third lead screws are arranged perpendicular to the length direction of the third deflection roller, and are relatively arranged on both sides of the third deflection roller along the length direction of the third deflection roller; each of the third lead screws is provided with a third nut seat, and the two ends of the third deflection roller along its length direction are respectively connected to the two third nut seats.

[0020] Optionally, the third driving assembly also includes two third support seats, and the two third screws are rotatably arranged on the two third support seats; third slide rails are provided on the end surfaces of the two third support seats facing each other along the axial direction of the third screw, and the third nut seat is slidably connected to the third slide rail via a third slider.

[0021] Optionally, the third driving member includes a third driving motor and two third worm gear reducers; the two third worm gear reducers are respectively arranged on the two third supporting seats, and the output ends of the two third worm gear reducers are respectively drivingly connected to the two third lead screws, suitable for driving the third lead screws to rotate; the two third worm gear reducers are drivingly connected through a third transmission shaft, and the input ends of the three third worm gear reducers are drivingly connected to the output ends of the third driving motor;

[0022] And / or, the third feeding assembly further includes a third photoelectric detection element, and the third photoelectric detection element is communicatively connected with the third driving element; the third photoelectric detection element is located on the conveying path of the cathode transfer film and is suitable for detecting the position of the cathode transfer film.

[0023] The technical solution of the utility model has the following advantages:

[0024] 1. The utility model drives the first deflection roller to abut against the proton exchange membrane to move closer to or away from the proton exchange membrane through the first driving member, thereby adjusting the front and rear positions of the proton exchange membrane, which is convenient for real-time adjustment during the transfer process, thereby achieving the purpose of aligning the transfer pattern;

[0025] 2. The utility model adjusts the first deflection roller by cooperating with the first lead screw and the first nut seat, thereby improving the adjustment accuracy and stability. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] In order to more clearly illustrate the specific implementation methods of the utility model or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0027] Figure 1 A schematic diagram of the structure of the thermal transfer device provided by the utility model;

[0028] Figure 2 The operation logic diagram of the thermal transfer device provided by the utility model;

[0029] Figure 3 This is a structural schematic diagram of the connection between the first deflection roller and the first driving assembly provided by the utility model.

[0030] Description of reference numerals:

[0031] 1. Proton exchange membrane; 2. First unwinding air expansion shaft; 3. First conveying roller; 4. First deflection roller; 5. First lead screw; 6. First nut seat; 7. First support seat; 8. First slide rail; 9. First slider; 10. First drive motor; 11. First worm gear reducer; 12. First transmission shaft; 13. First material receiving platform; 14. First tension sensor; 15. First deflection assembly; 16. Low inertia assembly; 17. Transfer assembly; 18. Rubber pressure roller; 19. First wind-up air expansion Shaft; 20, anode transfer film; 21, second unwinding air-expansion shaft; 22, second conveying roller; 23, second deflection roller; 24, second material receiving platform; 25, second tension sensor; 26, second deflection assembly; 27, first over-roller; 28, second winding air-expansion shaft; 29, cathode transfer film; 30, third unwinding air-expansion shaft; 31, third conveying roller; 32, third deflection roller; 33, third material receiving platform; 34, third tension sensor; 35, second over-roller; 36, third winding air-expansion shaft. DETAILED DESCRIPTION

[0032] The technical solution of the utility model will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0033] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the 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 cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0034] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" 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 it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0035] In addition, the technical features involved in the different embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0036] Example 1

[0037] See also Figures 1 to 3 The present embodiment provides a thermal transfer device, comprising: a transfer assembly 17, suitable for transferring the catalyst layers on the anode transfer membrane 20 and the cathode transfer membrane 29 to the two sides of the proton exchange membrane 1 respectively; a first feeding assembly, suitable for providing the proton exchange membrane 1 to the transfer assembly 17; the first feeding assembly comprises a plurality of first conveying rollers 3 arranged in sequence along the conveying direction of the proton exchange membrane 1, and a first deflection roller 4 is arranged between at least two adjacent first conveying rollers 3, the first deflection roller 4 is driven by the first driving assembly to move closer to or away from the proton exchange membrane 1, and always abuts against the proton exchange membrane 1 during the movement; the first driving assembly comprises a first driving member and two first lead screws 5; the output end of the first driving member is driven by the two first lead screws 5, and is suitable for driving the two first lead screws 5 to rotate synchronously; the two first lead screws 5 are arranged perpendicular to the length direction of the first deflection roller 4, and are relatively arranged on both sides of the first deflection roller 4 along the length direction of the first deflection roller 4; each first lead screw 5 is provided with a first nut seat 6, and the two ends of the first deflection roller 4 along its length direction are respectively connected to the two first nut seats 6.

[0038] It should be noted that the axial direction of the first deflection roller is parallel to the width direction of the proton exchange membrane 1 , the catalyst layer of the anode transfer membrane 20 is an anode catalyst layer, and the catalyst layer of the cathode transfer membrane 29 is a cathode catalyst layer.

[0039] In this embodiment, when the proton exchange membrane 1 is transferred, the proton exchange membrane 1 passes through a plurality of first conveying rollers 3 and a first deflection roller 4 to a transfer assembly 17, and in the transfer assembly 17, the catalyst layers on the anode transfer membrane 20 and the cathode transfer membrane 29 are respectively transferred to the two sides of the proton exchange membrane 1, so as to obtain a proton exchange membrane 1 having catalyst layers on both sides. During the transfer process, when the transfer patterns of the catalyst layers on the anode transfer membrane 20 and the cathode transfer membrane 29 transferred to the proton exchange membrane 1 are not aligned, the two first lead screws 5 can be driven to rotate synchronously by controlling the first driving member, so that the two The first lead screw 5 drives the first deflection roller 4 to abut against the proton exchange membrane 1 through the first nut seat 6 to move closer to or away from the proton exchange membrane 1, so that the proton exchange membrane 1 is tightened or relaxed, thereby realizing the tension control of the proton exchange membrane 1, which can drive the front and rear positions of the proton exchange membrane 1 to change, realize the front and rear position alignment of the proton exchange membrane 1, and achieve the purpose of aligning the transfer pattern, so as to facilitate real-time adjustment during the transfer process to ensure the quality of the proton exchange membrane 1 after transfer. At the same time, the first deflection roller 4 is adjusted by the cooperation of the first lead screw 5 and the first nut seat 6 to improve the adjustment accuracy and stability.

[0040] Example 2

[0041] As a further improvement to Example 1, Figure 3 As shown, the first drive assembly also includes two first support seats 7, and the two first lead screws 5 are rotatably arranged on the two first support seats 7; the end surfaces of the two first support seats 7 facing each other are provided with first slide rails 8 along the axial direction of the first lead screw 5, and the first nut seat 6 is slidably connected to the first slide rail 8 through the first slider 9.

[0042] It should be noted that the first support seat 7 can be fixedly arranged.

[0043] In this embodiment, the first support seat 7 is provided to support the first screw 5, and the first slide rail 8 is provided on the first support seat 7, so that the first nut seat 6 is slidably connected to the first slide rail 8 through the first slider 9, thereby improving the stability of the first deflection roller 4 during adjustment and ensuring its adjustment accuracy.

[0044] Based on the above implementation, in a preferred implementation, Figure 3As shown, the first driving member includes a first driving motor 10 and two first worm gear reducers 11; the two first worm gear reducers 11 are respectively arranged on two first supporting seats 7, and the output ends of the two first worm gear reducers 11 are respectively drivingly connected to the two first lead screws 5, suitable for driving the first lead screws 5 to rotate; the two first worm gear reducers 11 are drivingly connected through the first transmission shaft 12, and the input end of one of the first worm gear reducers 11 is drivingly connected to the output end of the first driving motor 10.

[0045] It should be noted that the first worm gear reducer 11 adopts a double-axis worm gear reducer, which facilitates the two first worm gear reducers 11 to be connected through the first transmission shaft 12; the rotation speed output by the first transmission shaft 12 is 1:1 with the rotation speed of the first drive motor 10.

[0046] In this embodiment, when the first deflection roller 4 needs to be adjusted, one of the first worm gear reducers 11 is driven to rotate by the first drive motor 10. While the first worm gear reducer 11 drives one of the first lead screws 5 to rotate, the other first worm gear reducer 11 is driven by the first transmission shaft 12 to synchronously drive the other first lead screw 5 to rotate, thereby achieving synchronous rotation of the two first lead screws 5 to adjust the first deflection roller 4.

[0047] Based on the above embodiment, in a preferred embodiment, the first feeding assembly also includes a first photoelectric detection element, and the first photoelectric detection element is communicatively connected with the first driving element; the first photoelectric detection element is located on the conveying path of the proton exchange membrane 1 and is suitable for detecting the position of the proton exchange membrane 1.

[0048] Communication connection refers to the communication between connected devices through signal transmission interaction, including wired connection (such as through wires, network cables, etc.) and wireless connection (such as WiFi, 4G connection, etc.).

[0049] In this embodiment, a first photoelectric detection element is provided to detect the position of the proton exchange membrane 1. When the position of the proton exchange membrane 1 is offset, a signal can be fed back to the first driving element. The first deflection roller 4 is adjusted by the first driving element to adjust the tension of the proton exchange membrane 1. The first driving element can be controlled to adjust the tension of the proton exchange membrane 1 in real time according to the signal feedback from the first photoelectric detection element, and its front and rear positions can be changed to realize automatic control to ensure that the transfer pattern is aligned with it, thereby saving manpower and material resources and improving production efficiency.

[0050] Specifically, the first photoelectric detection element may adopt existing technology such as a photoelectric sensor.

[0051] Based on the above implementation, in a preferred implementation, Figure 1 and Figure 2As shown, the first feed assembly further includes a low inertia assembly 16 . The low inertia assembly 16 is located on the transport path of the proton exchange membrane 1 and is suitable for adjusting the tension of the proton exchange membrane 1 .

[0052] In this embodiment, by setting a low-inertia component 16 on the conveying path of the proton exchange membrane 1, the proton exchange membrane 1 is conveyed to the transfer component 17 through the low-inertia component 16. The tension of the proton exchange membrane 1 can be adjusted by the low-inertia component 16 to further ensure the alignment of the transfer pattern during the transfer process.

[0053] Specifically, Figure 1 and Figure 2 As shown, the first feeding assembly also includes a first unwinding member, which includes a first unwinding air-inflating shaft 2. The first unwinding air-inflating shaft 2 is used to store and provide the proton exchange membrane 1, and the first unwinding driving member drives the first unwinding air-inflating shaft 2 to rotate to control the unwinding speed of the proton exchange membrane 1.

[0054] Specifically, Figure 1 and Figure 2 As shown, the first material supply assembly also includes a first material receiving platform 13, which is arranged on the conveying path of the proton exchange membrane 1 and is suitable for pressing the proton exchange membrane 1 in the middle, cutting it open, aligning the new proton exchange membrane 1, and fixing it with tape during the membrane replacement process of the proton exchange membrane 1.

[0055] Specifically, Figure 1 and Figure 2 As shown, the first feeding assembly further includes a first tension roller, which is disposed on the conveying path of the proton exchange membrane 1 , and is suitable for abutting against the proton exchange membrane 1 and adjusting the tension of the proton exchange membrane 1 , thereby improving the flexibility of adjustment.

[0056] Specifically, Figure 1 and Figure 2 As shown, the first feeding assembly also includes a first tension sensor 14, which is arranged on the conveying path of the proton exchange membrane 1 and is suitable for detecting the tension of the proton exchange membrane 1; the first tension sensor 14 is communicatively connected with the first driving member and the first unwinding driving member, and can be adjusted according to the detected tension of the proton exchange membrane 1 by adjusting the first deflection roller 4 and the unwinding speed of the proton exchange membrane 1, so that the proton exchange membrane 1 maintains an appropriate tension.

[0057] Specifically, Figure 1 and Figure 2As shown, the first feeding assembly also includes a first deflection adjustment assembly 15, which is disposed on the conveying path of the proton exchange membrane 1. The adjustment end of the first deflection adjustment assembly 15 abuts against the proton exchange membrane 1 and adjusts the position of the proton exchange membrane 1. The position of the proton exchange membrane 1 is adjusted by the first deflection adjustment assembly 15 before transfer, so that the catalyst layers of the anode transfer membrane 20 and the cathode transfer membrane 29 are aligned with the proton exchange membrane 1, so as to facilitate the alignment of the transfer pattern after the transfer starts.

[0058] Based on the above implementation, in a preferred implementation, Figures 1 to 3 As shown, the thermal transfer device also includes a second feeding assembly, which is suitable for providing the anode transfer film 20 to the transfer assembly 17; the second feeding assembly includes a plurality of second conveying rollers 22 arranged in sequence along the conveying direction of the anode transfer film 20, and a second deflection roller 23 is arranged between at least two adjacent second conveying rollers 22, and the second deflection roller 23 is driven by the second driving assembly to move closer to or away from the anode transfer film 20, and always abuts against the anode transfer film 20 during the movement; the second driving assembly includes a second driving member and two second lead screws; the output end of the second driving member is driven by the two second lead screws, and is suitable for driving the two second lead screws to rotate synchronously; the two second lead screws are arranged perpendicular to the length direction of the second deflection roller 23, and are relatively arranged on both sides of the second deflection roller 23 along the length direction of the second deflection roller 23; each second lead screw is provided with a second nut seat, and the two ends of the second deflection roller 23 along its length direction are respectively connected to the two second nut seats.

[0059] It should be noted that the axial direction of the second deflection roller is parallel to the width direction of the anode transfer film 20; the second deflection roller 23 and the second driving assembly have the same structure as the first deflection roller 4 and the first driving assembly.

[0060] In this embodiment, the anode transfer film 20 passes through a plurality of second conveying rollers 22 and a second deflection roller 23 to the transfer assembly 17, and the catalyst layer of the anode transfer film 20 is transferred to one side of the proton exchange membrane 1 in the transfer assembly 17. During the transfer process, when the transfer patterns of the catalyst layers on the anode transfer film 20 and the cathode transfer film 29 are not aligned with each other, the two second lead screws can be driven to rotate synchronously by controlling the second driving member, and then the two second lead screws drive the second deflection roller 23 to abut against the anode through the second nut seat. The transfer film 20 moves toward or away from the anode transfer film 20, so that the anode transfer film 20 is tightened or relaxed, thereby realizing the tension control of the anode transfer film 20, which can drive the front and rear positions of the anode transfer film 20 to change, realize the front and rear position alignment of the anode transfer film 20, and achieve the purpose of transfer pattern alignment, which is convenient for real-time adjustment during the transfer process to ensure the quality of the proton exchange membrane 1 after transfer, and at the same time, the second deflection roller 23 is adjusted by the cooperation of the second lead screw and the second nut seat to improve the adjustment accuracy and stability.

[0061] Based on the above implementation, in a preferred implementation, Figure 3 As shown, the second drive assembly also includes two second support seats, and two second screws are rotatably arranged on the two second support seats; second slide rails are provided on the end surfaces of the two second support seats facing each other along the axial direction of the second screw, and the second nut seat is slidably connected to the second slide rail via a second slider.

[0062] It should be noted that the second supporting seat can be fixedly arranged.

[0063] In this embodiment, the second support seat is provided to support the second lead screw, and a second slide rail is provided on the second support seat, so that the second nut seat is slidably connected to the second slide rail through the second slider, thereby improving the stability of the second deflection roller 23 during adjustment and ensuring its adjustment accuracy.

[0064] Based on the above implementation, in a preferred implementation, Figure 3 As shown, the second driving member includes a second driving motor and two second worm gear reducers; the two second worm gear reducers are respectively arranged on two second supporting seats, and the output ends of the two second worm gear reducers are respectively drivingly connected to the two second lead screws, suitable for driving the second lead screws to rotate; the two second worm gear reducers are drivingly connected through a second transmission shaft, and the input end of one of the second worm gear reducers is drivingly connected to the output end of the second driving motor.

[0065] It should be noted that the second worm gear reducer adopts a double-axis worm gear reducer, which is convenient for the two second worm gear reducers to be connected in transmission through the second transmission shaft; the speed output by the second transmission shaft is 1:1 with the speed of the second drive motor.

[0066] In this embodiment, when the second deflection roller 23 needs to be adjusted, one of the second worm gear reducers is driven to rotate by the second drive motor. While the second worm gear reducer drives one of the second lead screws to rotate, the other second worm gear reducer is driven by the second transmission shaft to synchronously drive the other second lead screw to rotate, thereby achieving synchronous rotation of the two second lead screws to adjust the second deflection roller 23.

[0067] Based on the above embodiment, in a preferred embodiment, the second feeding assembly also includes a second photoelectric detection element, and the second photoelectric detection element is communicatively connected with the second driving element; the second photoelectric detection element is located on the conveying path of the anodic transfer film 20 and is suitable for detecting the position of the anodic transfer film 20.

[0068] In this embodiment, a second photoelectric detection element is provided to detect the position of the anode transfer film 20. When the position of the anode transfer film 20 is offset, a signal can be fed back to the second driving element, and the second deflection roller 23 is adjusted by the second driving element to adjust the tension of the anode transfer film 20. The second driving element can be controlled to adjust the tension of the anode transfer film 20 in real time according to the signal feedback from the second photoelectric detection element, and its front and rear positions can be changed to realize automatic control to ensure that the transfer pattern is aligned with it, save manpower and material resources, and improve production efficiency. At the same time, the position of the proton exchange membrane 1 fed back by the first photoelectric detection element can be combined for judgment to improve the accuracy of adjustment.

[0069] Specifically, the second photoelectric detection element may adopt existing technology such as a photoelectric sensor.

[0070] Specifically, Figure 1 and Figure 2 As shown, the second feeding assembly also includes a second unwinding member, which includes a second unwinding air-inflating shaft 21. The second unwinding air-inflating shaft 21 is used to store and provide the anode transfer film 20, and the second unwinding driving member drives the second unwinding air-inflating shaft 21 to rotate to control the unwinding speed of the anode transfer film 20.

[0071] Specifically, Figure 1 and Figure 2 As shown, the second material feeding assembly also includes a second material receiving platform 24, which is arranged on the conveying path of the anodic transfer film 20 and is suitable for pressing the anodic transfer film 20 in the middle and cutting it open during the film replacement process of the anodic transfer film 20, aligning the new anodic transfer film 20 and fixing it with tape.

[0072] Specifically, Figure 1 and Figure 2 As shown, the second feeding assembly also includes a second tension roller, which is arranged on the conveying path of the anodic transfer film 20. The second tension roller is suitable for abutting against the anodic transfer film 20 and adjusting the tension of the anodic transfer film 20 to improve the flexibility of adjustment.

[0073] Specifically, Figure 1 and Figure 2 As shown, the second feeding assembly also includes a second tension sensor 25, which is arranged on the conveying path of the anodic transfer film 20 and is suitable for detecting the tension of the anodic transfer film 20; the second tension sensor 25 is communicatively connected with the second driving member and the second unwinding driving member, and can be adjusted according to the detected tension of the anodic transfer film 20 by adjusting the second deflection roller 23 and the unwinding speed of the anodic transfer film 20, so that the anodic transfer film 20 maintains a suitable tension.

[0074] Specifically, Figure 1 and Figure 2As shown, the second feeding assembly also includes a second deflection adjustment assembly 26, which is arranged on the conveying path of the anode transfer film 20. The adjustment end of the second deflection adjustment assembly 26 abuts against the anode transfer film 20 and adjusts the position of the anode transfer film 20. The position of the anode transfer film 20 is adjusted by the second deflection adjustment assembly 26 before transfer, so that the catalyst layer and the proton exchange membrane 1 of the anode transfer film 20 are aligned with the cathode transfer film 29, so as to facilitate the alignment of the transfer pattern after the transfer starts.

[0075] Based on the above implementation, in a preferred implementation, Figures 1 to 3 As shown, the thermal transfer device also includes a third feeding assembly, which is suitable for providing a cathode transfer film 29 to the transfer assembly 17; the third feeding assembly includes a plurality of third conveying rollers 31 arranged in sequence along the conveying direction of the cathode transfer film 29, and a third deflection roller 32 is arranged between at least two adjacent third conveying rollers 31, and the third deflection roller 32 is driven by the third driving assembly to move closer to or away from the cathode transfer film 29, and always abuts against the cathode transfer film 29 during the movement; the third driving assembly includes a third driving member and two third lead screws; the output end of the third driving member is driven by the two third lead screws, and is suitable for driving the two third lead screws to rotate synchronously; the two third lead screws are arranged perpendicular to the length direction of the third deflection roller 32, and are relatively arranged on both sides of the third deflection roller 32 along the length direction of the third deflection roller 32; each third lead screw is provided with a third nut seat, and the two ends of the third deflection roller 32 along its length direction are respectively connected to the two third nut seats.

[0076] It should be noted that the axial direction of the third deflection roller is parallel to the width direction of the cathode transfer film 29; the third deflection roller 32 and the third driving assembly have the same structure as the first deflection roller 4 and the first driving assembly.

[0077] In this embodiment, the cathode transfer film 29 passes through a plurality of third conveying rollers 31 and a third deflection roller 32 to the transfer assembly 17, and the catalyst layer of the cathode transfer film 29 is transferred to one side of the proton exchange membrane 1 in the transfer assembly 17. During the transfer process, when the transfer patterns of the catalyst layer on the cathode transfer film 29 and the anode transfer film 20 are not aligned with each other, the two third lead screws can be driven to rotate synchronously by controlling the third driving member, and then the two third lead screws drive the third deflection roller 32 to abut against the cathode through the third nut seat. The transfer film 29 moves toward or away from the cathode transfer film 29, so that the cathode transfer film 29 is tightened or relaxed, which can drive the front and rear positions of the cathode transfer film 29 to change, thereby realizing the tension control of the cathode transfer film 29 and realizing the front and rear position alignment of the cathode transfer film 29, thereby achieving the purpose of transfer pattern alignment, facilitating real-time adjustment during the transfer process to ensure the quality of the proton exchange membrane 1 after transfer, and at the same time adjusting the third deflection roller 32 by cooperating with the third screw and the third nut seat to improve the adjustment accuracy and stability.

[0078] Based on the above implementation, in a preferred implementation, Figure 3 As shown, the third drive assembly also includes two third support seats, and two third screws are rotatably arranged on the two third support seats; third slide rails are provided on the end surfaces of the two third support seats facing each other along the axial direction of the third screw, and the third nut seat is slidably connected to the third slide rail via a third slider.

[0079] It should be noted that the third support seat can be fixedly arranged.

[0080] In this embodiment, the third screw is supported by setting a third support seat, and a third slide rail is set on the third support seat, so that the third nut seat is slidably connected to the third slide rail through the third slider, thereby improving the stability of the third deflection roller 32 during adjustment and ensuring its adjustment accuracy.

[0081] Based on the above implementation, in a preferred implementation, Figure 3 As shown, the third driving member includes a third driving motor and two third worm gear reducers; the two third worm gear reducers are respectively arranged on two third supporting seats, and the output ends of the two third worm gear reducers are respectively drivingly connected to the two third lead screws, suitable for driving the third lead screws to rotate; the two third worm gear reducers are drivingly connected through the third transmission shaft, and the input ends of the three third worm gear reducers are drivingly connected to the output ends of the third driving motor.

[0082] It should be noted that the third worm gear reducer adopts a double-axis worm gear reducer, which is convenient for the two third worm gear reducers to be connected through the third transmission shaft; the speed output by the third transmission shaft is 1:1 with the speed of the third drive motor.

[0083] In this embodiment, when the third deflection roller 32 needs to be adjusted, one of the third worm gear reducers is driven to rotate by the third drive motor. While the third worm gear reducer drives one of the third lead screws to rotate, another third worm gear reducer is driven by the third transmission shaft to synchronously drive another third lead screw to rotate, thereby achieving synchronous rotation of the two third lead screws to adjust the third deflection roller 32.

[0084] Based on the above embodiment, in a preferred embodiment, the third feeding assembly also includes a third photoelectric detection element, and the third photoelectric detection element is communicatively connected with the third driving element; the third photoelectric detection element is located on the conveying path of the cathode transfer film 29 and is suitable for detecting the position of the cathode transfer film 29.

[0085] In this embodiment, a third photoelectric detection element is provided to detect the position of the cathode transfer film 29. When the position of the cathode transfer film 29 is offset, a signal can be fed back to the third driving element. The third deflection roller 32 is adjusted by the third driving element to adjust the tension of the cathode transfer film 29. The third driving element can be controlled to adjust the tension of the cathode transfer film 29 in real time according to the signal feedback from the third photoelectric detection element, and its front and rear positions can be changed to realize automatic control to ensure that the transfer pattern is aligned with it, saving manpower and material resources and improving production efficiency. At the same time, the position of the proton exchange membrane 1 fed back by the first photoelectric detection element and the position of the anode transfer film 20 fed back by the second photoelectric detection element can be combined for judgment to improve the accuracy of adjustment.

[0086] Specifically, the third photoelectric detection element may adopt existing technology such as a photoelectric sensor.

[0087] Specifically, Figure 1 and Figure 2 As shown, the third feeding assembly also includes a third unwinding member, and the third unwinding member includes a third unwinding air-inflating shaft 30. The third unwinding air-inflating shaft 30 is used to store and provide the cathode transfer film 29, and the third unwinding driving member drives the third unwinding air-inflating shaft 30 to rotate to control the unwinding speed of the cathode transfer film 29.

[0088] Specifically, Figure 1 and Figure 2 As shown, the third material feeding assembly also includes a third material receiving platform 33, which is arranged on the conveying path of the cathode transfer film 29 and is suitable for pressing the cathode transfer film 29 in the middle, cutting it open, aligning the new cathode transfer film 29, and fixing it with tape during the film replacement process of the cathode transfer film 29.

[0089] Specifically, Figure 1 and Figure 2As shown, the third feeding assembly also includes a third tension roller, which is arranged on the conveying path of the cathode transfer film 29. The third tension roller is suitable for abutting the cathode transfer film 29 and adjusting the tension of the cathode transfer film 29 to improve the flexibility of adjustment.

[0090] Specifically, Figure 1 and Figure 2 As shown, the third feeding assembly also includes a third tension sensor 34, which is arranged on the conveying path of the cathode transfer film 29 and is suitable for detecting the tension of the cathode transfer film 29; the third tension sensor 34 is communicatively connected with the third driving member and the third unwinding driving member, and can be adjusted according to the detected tension of the cathode transfer film 29 by adjusting the third deflection roller 32 and the unwinding speed of the cathode transfer film 29, so that the cathode transfer film 29 maintains an appropriate tension.

[0091] Specifically, Figure 1 and Figure 2 As shown, the third feeding assembly also includes a third deflection adjustment assembly, which is arranged on the conveying path of the cathode transfer film 29. The adjustment end of the third deflection adjustment assembly abuts against the cathode transfer film 29 and adjusts the position of the cathode transfer film 29. The position of the cathode transfer film 29 is adjusted by the third deflection adjustment assembly before transfer, so that the cathode transfer film 29 is aligned with the catalyst layer and the proton exchange membrane 1 of the anode transfer film 20, so as to facilitate the alignment of the transfer pattern after the transfer starts.

[0092] Specifically, Figure 1 and Figure 2 As shown, the transfer assembly 17 includes a first transfer roller and a second transfer roller, which are arranged relatively parallel to each other, and a transfer channel for the cathode transfer membrane 29, the anode transfer membrane 20 and the proton exchange membrane 1 to pass through is formed between the first transfer roller and the second transfer roller. The transfer channel is suitable for extruding the cathode transfer membrane 29, the anode transfer membrane 20 and the proton exchange membrane 1, and transferring the catalyst layers on the cathode transfer membrane 29 and the anode transfer membrane 20 to the proton exchange membrane 1, so as to achieve the purpose of composite transfer.

[0093] Specifically, the first transfer roller and the second transfer roller are electromagnetic steel rollers, which can be electromagnetically heated to improve the transfer effect.

[0094] Specifically, Figure 1 and Figure 2 As shown, the thermal transfer device also includes a first winding component, which is arranged downstream of the transfer component 17 and is suitable for winding up the proton exchange membrane 1 after the transfer is completed; preferably, the first winding component includes a rubber pressure roller 18 and a first winding air-expansion shaft 19 arranged in sequence along the conveying direction of the proton exchange membrane 1. After passing through the rubber pressure roller 18, the proton exchange membrane 1 is wound up by the first winding air-expansion shaft 19, and the rubber pressure roller 18 is used to ensure that the membrane is smooth and flat during the winding process.

[0095] Specifically, Figure 1 and Figure 2 As shown, the thermal transfer device also includes a second winding assembly, which is arranged downstream of the transfer assembly 17 and is suitable for winding up the anode transfer film 20 after the transfer is completed; preferably, the second winding assembly includes a first roller 27 and a second winding air-expanding shaft 28 which are arranged in sequence along the conveying direction of the anode transfer film 20, and the anode transfer film 20 is wound up by the second winding air-expanding shaft 28 after passing through the first roller 27, and the conveying direction of the anode transfer film 20 is adjusted by the first roller 27.

[0096] Specifically, Figure 1 and Figure 2 As shown, the thermal transfer device also includes a third winding component, which is arranged downstream of the transfer component 17 and is suitable for winding up the cathode transfer film 29 after the transfer is completed; preferably, the third winding component includes a first roller 27 and a third winding air-expanding shaft 36 which are arranged in sequence along the conveying direction of the cathode transfer film 29, and the cathode transfer film 29 is wound up by the third winding air-expanding shaft 36 after passing through the first roller 27, and the conveying direction of the cathode transfer film 29 is adjusted by the first roller 27.

[0097] The specific working principle of the transfer device provided in this embodiment is as follows: before the transfer starts, the proton exchange membrane 1 first passes through the first conveying roller 3, the first deflection roller 4, the first material receiving platform 13, the first tension sensor 14, the first deflection component 15, the low inertia component 16, the transfer component 17, and the rubber pressure roller 18 by the first unwinding air-expanding shaft 2 in sequence, and is then wound up by the first winding air-expanding shaft 19; the anode transfer film 20 passes through the second conveying roller 22, the second deflection roller 23, the second material receiving platform 24, the second tension sensor 25, the second deflection component 26, the transfer component 17, and the first roller 27 by the second unwinding air-expanding shaft 21 in sequence, and is then wound up by the second winding air-expanding shaft 28; the cathode transfer film 29 passes through the third conveying roller 31, the third material receiving platform 33, the third tension sensor 34, the third deflection roller 32, the third deflection component, the transfer component 17, and the first roller 27 by the third unwinding air-expanding shaft 30 in sequence. The cathode transfer film 29, the anode transfer film 20 and the proton exchange membrane 1 are aligned by the first deflection adjustment component 15, the second deflection adjustment component 26 and the third deflection adjustment component before the transfer starts, and then the transfer starts. During the transfer process, the first photoelectric detection component, the second photoelectric detection component and the third photoelectric detection component are used for detection. When the transfer patterns of the catalyst layers on the anode transfer film 20 and the cathode transfer film 29 are not aligned to the proton exchange membrane 1, the first deflection adjustment roller 4, the second deflection adjustment roller 23 and the third deflection adjustment roller 32 can be adjusted respectively by the first drive component, the second drive component and the third drive component to adjust the front and rear positions of the proton exchange membrane 1, the anode transfer film 20 and the cathode transfer film 29 in real time to align the transfer and improve the production quality. The invention solves the technical problem that the existing transfer device usually manually adjusts and aligns the anode transfer film 20, the cathode transfer film 29 and the proton exchange membrane 1 before transfer, but it is difficult to adjust the positions of the anode transfer film 20, the cathode transfer film 29 and the proton exchange membrane 1 when they deviate during the transfer process, resulting in misalignment of the transfer pattern and affecting the quality of the proton exchange membrane 1 after the transfer.

[0098] Obviously, the above embodiments are merely examples for the purpose of clear explanation, and are not intended to limit the implementation methods. For those skilled in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the implementation methods here. The obvious changes or modifications derived therefrom are still within the scope of protection of the invention of the utility model.

Claims

1. A thermal transfer device, characterized in that: include: A transfer assembly (17) adapted to transfer the catalyst layers on the anode transfer membrane (20) and the cathode transfer membrane (29) to both sides of the proton exchange membrane (1); A first feeding assembly, adapted to provide the proton exchange membrane (1) to the transfer assembly (17); the first feeding assembly comprises a plurality of first conveying rollers (3) arranged in sequence along the conveying direction of the proton exchange membrane (1), a first deflection roller (4) being arranged between at least two adjacent first conveying rollers (3), the first deflection roller (4) being driven by a first driving assembly to move towards or away from the proton exchange membrane (1), and always abutting against the proton exchange membrane (1) during the movement; The first driving assembly comprises a first driving member and two first lead screws (5); the output end of the first driving member is driven by the two first lead screws (5), and is suitable for driving the two first lead screws (5) to rotate synchronously; the two first lead screws (5) are arranged perpendicular to the length direction of the first deflection roller (4), and are relatively arranged on both sides of the first deflection roller (4) along the length direction of the first deflection roller (4); each of the first lead screws (5) is provided with a first nut seat (6), and the two ends of the first deflection roller (4) along its length direction are respectively connected to the two first nut seats (6).

2. A thermal transfer device according to claim 1, characterized in that: The first driving assembly further comprises two first supporting seats (7), on which the two first lead screws (5) are rotatably arranged; first slide rails (8) are arranged along the axial direction of the first lead screw (5) on the end surfaces of the two first supporting seats (7) facing each other, and the first nut seat (6) is slidably connected to the first slide rail (8) via a first slider (9).

3. A thermal transfer device according to claim 2, characterized in that: The first driving member comprises a first driving motor (10) and two first worm gear reducers (11); the two first worm gear reducers (11) are respectively arranged on the two first supporting seats (7), and the output ends of the two first worm gear reducers (11) are respectively drivingly connected to the two first lead screws (5), suitable for driving the first lead screws (5) to rotate; the two first worm gear reducers (11) are drivingly connected via a first transmission shaft (12), and the input end of one of the first worm gear reducers (11) is drivingly connected to the output end of the first driving motor (10); And / or, the first feeding assembly further comprises a first photoelectric detection element, and the first photoelectric detection element is communicatively connected with the first driving element; the first photoelectric detection element is located on the conveying path of the proton exchange membrane (1) and is suitable for detecting the position of the proton exchange membrane (1).

4. The thermal transfer device according to claim 1, characterized in that: The first feed assembly further comprises a low inertia assembly (16), wherein the low inertia assembly (16) is located on the transport path of the proton exchange membrane (1) and is suitable for adjusting the tension of the proton exchange membrane (1).

5. The thermal transfer device according to any one of claims 1 to 4, characterized in that: It also includes a second feeding assembly, which is suitable for providing the anode transfer film (20) to the transfer assembly (17); the second feeding assembly includes a plurality of second conveying rollers (22) arranged in sequence along the conveying direction of the anode transfer film (20), and a second deflection roller (23) is arranged between at least two adjacent second conveying rollers (22); the second deflection roller (23) is driven by a second driving assembly to move closer to or away from the anode transfer film (20), and always abuts against the anode transfer film (20) during the movement; The second driving assembly includes a second driving member and two second lead screws; the output end of the second driving member is driven by the two second lead screws, and is suitable for driving the two second lead screws to rotate synchronously; the two second lead screws are arranged perpendicular to the length direction of the second deflection roller (23), and are relatively arranged on both sides of the second deflection roller (23) along the length direction of the second deflection roller (23); each second lead screw is provided with a second nut seat, and the two ends of the second deflection roller (23) along its length direction are respectively connected to the two second nut seats.

6. The thermal transfer device according to claim 5, characterized in that: The second driving assembly also includes two second supporting seats, and two second lead screws are rotatably arranged on the two second supporting seats; second slide rails are provided on the end surfaces of the two second supporting seats facing each other along the axial direction of the second lead screw, and the second nut seat is slidably connected to the second slide rail via a second slider.

7. The thermal transfer device according to claim 6, characterized in that: The second driving member includes a second driving motor and two second worm gear reducers; the two second worm gear reducers are respectively arranged on the two second supporting seats, and the output ends of the two second worm gear reducers are respectively connected to the two second lead screws, suitable for driving the second lead screws to rotate; The two second worm gear reducers are drivingly connected via a second transmission shaft, and an input end of one of the second worm gear reducers is drivingly connected to an output end of the second drive motor; And / or, the second feeding assembly further comprises a second photoelectric detection element, and the second photoelectric detection element is communicatively connected with the second driving element; The second photoelectric detection element is located on the conveying path of the anodic transfer film (20) and is suitable for detecting the position of the anodic transfer film (20).

8. The thermal transfer device according to any one of claims 1 to 4, characterized in that: It also includes a third feeding assembly, which is suitable for providing the cathode transfer film (29) to the transfer assembly (17); the third feeding assembly includes a plurality of third conveying rollers (31) arranged in sequence along the conveying direction of the cathode transfer film (29), and a third deflection roller (32) is arranged between at least two adjacent third conveying rollers (31); the third deflection roller (32) is driven by a third driving assembly to move closer to or away from the cathode transfer film (29), and always abuts against the cathode transfer film (29) during the movement; The third driving assembly includes a third driving member and two third lead screws; the output end of the third driving member is driven by the two third lead screws, and is suitable for driving the two third lead screws to rotate synchronously; the two third lead screws are arranged perpendicular to the length direction of the third deflection roller (32), and are relatively arranged on both sides of the third deflection roller (32) along the length direction of the third deflection roller (32); each of the third lead screws is provided with a third nut seat, and the two ends of the third deflection roller (32) along its length direction are respectively connected to the two third nut seats.

9. The thermal transfer device according to claim 8, characterized in that: The third driving assembly also includes two third supporting seats, and the two third lead screws are rotatably arranged on the two third supporting seats; third slide rails are provided on the end surfaces of the two third supporting seats facing each other along the axial direction of the third lead screw, and the third nut seat is slidably connected to the third slide rail via a third slider.

10. The thermal transfer device according to claim 9, characterized in that: The third driving member includes a third driving motor and two third worm gear reducers; the two third worm gear reducers are respectively arranged on the two third supporting seats, and the output ends of the two third worm gear reducers are respectively connected to the two third lead screws, suitable for driving the third lead screws to rotate; Two third worm gear reducers are drivingly connected via a third transmission shaft, and input ends of three of the third worm gear reducers are drivingly connected to output ends of the third drive motor; And / or, the third feeding assembly further comprises a third photoelectric detection element, and the third photoelectric detection element is communicatively connected with the third driving element; the third photoelectric detection element is located on the conveying path of the cathode transfer film (29) and is suitable for detecting the position of the cathode transfer film (29).

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