Fuel cell GDL automatic feeding device

Abstract

The utility model belongs to the technical field of fuel cells, and provides a fuel cell GDL automatic feeding device which comprises a rack, a discharging mechanism is arranged on the rack, a material receiving platform is arranged on the downstream of the discharging mechanism, a traction tool apron is arranged on the downstream of the material receiving platform, and a buffering mechanism is arranged on the downstream of the traction tool apron. The number of the discharging mechanisms is two, each discharging mechanism comprises a discharging roller, a waste winding roller is arranged on one side of the discharging roller, a deviation rectifying shaft is arranged on the downstream portion of the discharging roller, an ultrasonic sensor is arranged on the downstream portion of the deviation rectifying shaft, a pneumatic clamp is arranged on the downstream portion of the ultrasonic sensor, and a first raw material guiding shaft is arranged on the downstream portion of the pneumatic clamp. According to the automatic feeding device, automatic and orderly feeding of the gas diffusion layer can be achieved, the material belt buffering function is achieved, material roll replacement and continuous machining of the material belt are achieved on the premise that constant tension is guaranteed, the machining efficiency of the material belt is greatly improved, and the use requirement of GDL automatic cutting machining is met.

Description

Technical Field

[0001] The utility model relates to the technical field of fuel cells, in particular to a fuel cell GDL automatic feeding device. Background Art

[0002] One of the core components of proton exchange membrane fuel cells is the membrane electrode. The membrane electrode is mainly composed of three parts: proton exchange membrane, catalyst layer and diffusion layer. From the perspective of membrane electrode preparation process, the membrane electrode can be divided into gas diffusion layer (GDL) membrane electrode, catalyst coated (CCM) membrane electrode and ordered membrane electrode. The gas diffusion layer (GDL) is a very important component of the proton exchange membrane fuel cell. It is located between the catalyst electrode (CL) and the bipolar plate (BP). It is a key component of the fuel cell. It is usually composed of carbon paper or carbon cloth. It mainly plays the role of mass transfer, electrical conduction, heat transfer, support for the catalyst layer, and water conduction. At the same time, the gas diffusion layer plays the role of a medium for diffusing hydrogen / oxygen or methanol / air to the catalyst layer reaction, realizing the redistribution of the reaction gas and product water between the flow field and the catalyst layer, which directly affects the performance of the electrode.

[0003] The gas diffusion layer includes a support layer and a microporous layer; the support layer is usually composed of hydrophobically treated carbon paper or carbon cloth, so the fuel cell membrane electrode processing requires carbon paper cutting; in the GDL preparation process, the GDL raw material is usually cut into sheets before subsequent processing, but at present, there is still no automatic loading device specifically used to realize GDL preparation, and the loading of GDL still relies on manual work. The manual loading method not only has low work efficiency, but also cannot meet the processing requirements of GDL automatic cutting. Utility Model Content

[0004] In order to overcome the above-mentioned defects of the prior art, the inventors conducted in-depth research and completed the present utility model after paying a lot of creative work.

[0005] Specifically, the technical problem to be solved by the utility model is to provide a fuel cell GDL automatic feeding device to solve the technical problem that the current manual GDL feeding method has low work efficiency and cannot meet the requirements of GDL automatic cutting and processing.

[0006] In order to solve the above technical problems, the technical solution of the utility model is:

[0007] A fuel cell GDL automatic feeding device comprises a frame, a material discharge mechanism is arranged on the frame, a material receiving platform is arranged downstream of the material discharge mechanism, a traction knife seat is arranged downstream of the material receiving platform, and a buffer mechanism is arranged downstream of the traction knife seat;

[0008] The material discharging mechanism is provided with two sets, and the material discharging mechanism includes a material discharging roller, a waste material winding roller is provided on one side of the material discharging roller, a deviation correction shaft is provided downstream of the material discharging roller, an ultrasonic sensor is provided downstream of the deviation correction shaft, a pneumatic clamp is provided downstream of the ultrasonic sensor, and a first raw material guide shaft is provided downstream of the pneumatic clamp.

[0009] As an improved technical solution, a waste material guide shaft is provided between the unwinding roller and the waste material winding roller, and a second raw material guide shaft is provided downstream of the buffer mechanism.

[0010] As an improved technical solution, the cache mechanism includes a plurality of material belt guide shafts installed on the frame and arranged in sequence, a sliding mounting plate driven by a driving device is slidably mounted on the frame in a vertical direction, and a plurality of lifting guide shafts are arranged in sequence on the sliding mounting plate, the lifting guide shaft is located below the material belt guide shaft, and the lifting guide shafts are respectively located between two adjacent material belt guide shafts;

[0011] The frame is provided with a strip slide groove in the vertical direction, and a fixed bracket is fixedly installed on the sliding mounting plate. The fixed bracket passes through the frame through the strip slide groove, and the fixed bracket is connected with a counterweight assembly.

[0012] As an improved technical solution, two parallel guide rails are vertically fixedly installed on the frame, a slider is slidably installed on the guide rail, and a sliding mounting plate is fixedly connected to the slider;

[0013] The driving device includes a driving motor installed on the frame, and a driving wheel and a driven wheel are rotatably installed at both ends of the frame, the driving wheel is installed on the output shaft of the driving motor, a synchronous belt is wound around the frame between the driven wheel and the driving wheel, and the driven wheel is transmission-connected to the driving wheel through the synchronous belt, and one side of the synchronous belt is fixedly connected to the fixed bracket by a holding plate.

[0014] As an improved technical solution, the counterweight assembly includes a mounting base fixedly installed on the top of the frame, a guide roller is rotatably installed on the mounting base, a steel wire rope is wound around the guide roller, a lifting base plate is fixedly installed on the fixed bracket, one end of the steel wire rope is connected to the lifting base plate, and the other end of the steel wire rope is connected to the counterweight block.

[0015] As an improved technical solution, a guide rod arranged parallel to the guide rail is fixedly installed on the back of the frame, a limit plate is slidably installed on the guide rod along its axial direction, and the counterweight block is fixedly connected to the limit plate.

[0016] As an improved technical solution, a grating ruler is vertically fixedly mounted on the frame, a connecting plate is fixedly mounted on the fixed bracket, and the connecting plate is connected to the universal head of the grating ruler.

[0017] As an improved technical solution, polyurethane shock-absorbing blocks are fixedly installed at both ends of the guide rail;

[0018] And / or, a hydraulic buffer assembly is provided between the two guide rails on the frame to realize shock absorption and buffering of the sliding mounting plate, and the hydraulic buffer assembly is provided with two groups, and the two groups of hydraulic buffer assemblies are respectively arranged at the two ends of the guide rails, and the hydraulic buffer assembly includes a buffer seat fixedly mounted on the frame, a hydraulic buffer is installed on the buffer seat, and block screws are also fixedly mounted on the buffer seat on both sides of the hydraulic buffer.

[0019] As an improved technical solution, the frame is also provided with a tension sensing assembly, which is located at the head and tail ends of a plurality of the material strip guide shafts arranged in sequence, the tension sensing assembly is located below the material strip guide shaft, and the tension sensing assembly is arranged between two adjacent material strip guide shafts.

[0020] As an improved technical solution, the tension sensing assembly includes a tension detection guide shaft, and the tension detection guide shaft is installed on the frame through a tension sensor.

[0021] After adopting the above technical solution, the beneficial effects of the utility model are:

[0022] The fuel cell GDL automatic feeding device realizes material roll discharge through the discharge roller, and realizes the winding and collection of protective film waste through the waste winding roller, realizes real-time detection of material belt conveying through the ultrasonic sensor, and performs real-time material belt deviation correction through the deviation correction shaft according to the detection result of the ultrasonic sensor. The pneumatic clamp is provided to clamp the material belt for easy material roll replacement. The material belt is conveyed to the material receiving platform after being guided by the first raw material guide shaft, and then the material belt is pulled and conveyed by the traction knife seat, and the material belt is cached by the buffer mechanism. Under the premise of keeping the material belt tension constant, it will not affect the subsequent processing of the material belt, and the material roll can be replaced without stopping the machine, thereby realizing automatic and orderly processing of the material belt, and the processing efficiency is greatly improved.

[0023] Through the fuel cell GDL automatic feeding device, the gas diffusion layer can be automatically and orderly fed, and it has a material strip caching function, ensuring the replacement of material rolls and continuous processing of material strips under the premise of constant tension, greatly improving the processing efficiency of the material strip and meeting the use requirements of GDL automatic cutting processing. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the specific implementation of the utility model or the technical solution in the prior art, the following is a brief introduction to the drawings required for the specific implementation or the prior art description. In all the drawings, similar elements or parts are generally identified by similar reference numerals. In the drawings, each element or part is not necessarily drawn according to the actual scale.

[0025] Figure 1 This is a schematic diagram of the structure of the GDL automatic feeding device for fuel cells of the utility model;

[0026] Figure 2 This is a schematic diagram of the structure of the cache mechanism of the utility model;

[0027] Figure 3 Another three-dimensional structural diagram of the buffer mechanism of the utility model;

[0028] Figure 4 This is a front view structural diagram of the cache mechanism of the utility model;

[0029] Figure 5 It is a rear view structural diagram of the cache mechanism of the utility model;

[0030] Figure 6 This is a schematic diagram of the installation structure of the lifting guide shaft of the utility model;

[0031] Figure 7 This is a schematic diagram of the installation structure of the counterweight block of the utility model;

[0032] Figure 8 for Figure 3 A schematic diagram of the enlarged structure of the middle I part;

[0033] Reference numerals: 1-frame; 101-strip slide; 2-discharging roller; 3-waste guide shaft; 4-waste winding roller; 5-correction shaft; 6-ultrasonic sensor; 7-pneumatic clamp; 8-first raw material guide shaft; 9-material receiving platform; 10-traction knife seat; 11-second raw material guide shaft; 12-material belt guide shaft; 13-sliding mounting plate; 14-lifting guide shaft; 15-fixed bracket; 16-guide rail; 17-sliding block; 18-driving motor; 19-driven wheel; 20-synchronous belt; 21-holding plate; 22-mounting seat; 23-guide roller; 24-wire rope; 25-lifting base plate; 26-counterweight block; 27-guide rod; 28-limiting plate; 29-grating scale; 30-connecting plate; 31-polyurethane shock-absorbing block; 32-buffer seat; 33-hydraulic buffer; 34-block screw; 35-tension detection guide shaft; 36-tension sensor; 37-material belt; 38-waste belt. DETAILED DESCRIPTION

[0034] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only 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.

[0035] It should be noted that all directional indications (such as up, down, left, right, front, back...) in the embodiments of the present invention are only used to explain the relative position relationship, movement status, etc. between the various components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0036] At the same time, the meaning of "and / or" or "and / or" appearing in the full text includes three options. Taking "A and / or B" as an example, it includes option A, or option B, or a option in which both A and B are satisfied.

[0037] In addition, in the present utility model, descriptions such as "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their 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 addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the ability of ordinary technicians in the field to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the present utility model.

[0038] like Figures 1 to 8 As shown together, the present embodiment provides a fuel cell GDL automatic feeding device, comprising a frame 1, on which a discharging mechanism is provided, a material receiving platform 9 is provided downstream of the discharging mechanism, a traction knife seat 10 is provided downstream of the material receiving platform 9, and a cache mechanism is provided downstream of the traction knife seat 10; the discharging mechanism comprises a discharging roller 2, a waste material winding roller 4 is provided on one side of the discharging roller 2, a deviation correction shaft 5 is provided downstream of the discharging roller 2, the deviation correction shaft 5 can be fine-tuned along the Y-axis direction to realize the deviation correction of the material belt 37, an ultrasonic sensor 6 is provided downstream of the ultrasonic sensor 6, a pneumatic clamp 7 is provided downstream of the ultrasonic clamp 6, and a first raw material guide shaft 8 is provided downstream of the pneumatic clamp 7.

[0039] In this embodiment, the unwinding mechanism is provided with two sets, one of which is used as a spare when the material roll is replaced. The unwinding roller 2 and the waste material winding roller 4 are both air shaft structures installed on the frame 1, which is convenient for the material roll replacement operation.

[0040] In this embodiment, a waste guide shaft 3 is provided between the unwinding roller 2 and the waste winding roller 4 to achieve guided transportation of the waste belt 38 .

[0041] In this embodiment, a second raw material guide shaft 11 is provided downstream of the buffer mechanism to achieve guided conveyance of the material belt 37 .

[0042] The cache mechanism includes a plurality of material belt guide shafts 12 installed on the frame 1 and arranged in sequence. A sliding mounting plate 13 driven by a driving device is slidably installed on the frame 1 along the vertical direction. A plurality of lifting guide shafts 14 are arranged in sequence on the sliding mounting plate 13. The lifting guide shaft 14 is located below the material belt guide shaft 12, and the lifting guide shaft 14 is respectively located between two adjacent material belt guide shafts 12. A strip slide groove 101 is opened on the frame 1 in the vertical direction, and a fixed bracket 15 is fixedly installed on the sliding mounting plate 13. The fixed bracket 15 passes through the frame 1 through the strip slide groove 101, and the fixed bracket 15 is connected to a counterweight assembly.

[0043] In order to realize the sliding installation of the sliding installation plate 13 in the vertical direction, two parallel guide rails 16 are vertically fixedly installed on the frame 1, and a slider 17 is slidably installed on the guide rail 16. The sliding installation plate 13 is fixedly connected to the slider 17.

[0044] The driving device includes a driving motor 18 mounted on the frame 1, and a driving wheel and a driven wheel 19 are rotatably mounted on both ends of the frame 1. The driving wheel is mounted on the output shaft of the driving motor 18, and a synchronous belt 20 is wound between the driven wheel 19 and the driving wheel. The driven wheel 19 is connected to the driving wheel through the synchronous belt 20, and one side of the synchronous belt 20 is fixedly connected to the fixed bracket 15 by a holding plate 21. When the driving motor 18 works, the synchronous belt 20 is driven through the driving wheel and the driven wheel 19, thereby driving the sliding mounting plate 13 to rise and fall.

[0045] The counterweight assembly includes a mounting seat 22 fixedly mounted on the top of the frame 1, a guide roller 23 is rotatably mounted on the mounting seat 22, a steel wire rope 24 is wound around the guide roller 23, a hoisting base plate 25 is fixedly mounted on the fixed bracket 15, one end of the steel wire rope 24 is connected to the hoisting base plate 25, and the other end of the steel wire rope 24 is connected to a counterweight block 26. The counterweight assembly provided can realize the counterweighting of the sliding mounting plate 13 and the lifting guide shaft 14, ensuring that the lifting and lowering of the sliding mounting plate 13 and the lifting guide shaft 14 is labor-saving and stable.

[0046] A guide rod 27 parallel to the guide rail 16 is fixedly installed on the back of the frame 1, and a limit plate 28 is slidably installed on the guide rod 27 along its axial direction, and the counterweight block 26 is fixedly connected to the limit plate 28; the counterweight block 26 is lifted and lowered along the axial direction of the guide rod 27 through the limit plate 28, so that the counterweight block 26 moves up and down along the guide rod 27, realizing the sliding limit of the counterweight block 26, avoiding the counterweight block 26 from shaking during the lifting process, and realizing stable counterweighting.

[0047] In this embodiment, a grating ruler 29 is vertically fixedly mounted on the frame 1, a connecting plate 30 is fixedly mounted on the fixed bracket 15, and the connecting plate 30 is connected to the universal head of the grating ruler 29; the grating ruler 29 is used to detect the lifting position of the sliding mounting plate 13.

[0048] In one embodiment, polyurethane shock-absorbing blocks 31 are fixedly installed at both ends of the guide rail 16 to achieve position limiting and blocking of the slider 17 and prevent the slider 17 from slipping off the guide rail 16 .

[0049] In one embodiment, a hydraulic buffer assembly is provided between two guide rails 16 on the frame 1 to achieve shock absorption and buffering of the sliding mounting plate 13 . Two groups of hydraulic buffer assemblies are provided, and the two groups of hydraulic buffer assemblies are respectively arranged at the two ends of the guide rails 16 .

[0050] The hydraulic buffer assembly includes a buffer seat 32 fixedly mounted on the frame 1, a hydraulic buffer 33 is mounted on the buffer seat 32, and block screws 34 are also fixedly mounted on the buffer seat 32 on both sides of the hydraulic buffer 33; the hydraulic assembly is provided, which can achieve shock absorption and buffering of the sliding mounting plate 13 to avoid the influence of inertial impact.

[0051] The frame 1 is also provided with a tension sensor assembly, which is located at the head and tail ends of a plurality of material belt guide shafts 12 arranged in sequence, the tension sensor assembly is located below the material belt guide shaft 12, and the tension sensor assembly is arranged between two adjacent material belt guide shafts 12.

[0052] The tension sensing assembly includes a tension detection guide shaft 35, and the tension detection guide shaft 35 is installed on the frame 1 through a tension sensor 36. Through the tension sensing assembly, the tension of the material belt 37 can be detected in real time, and according to the detection result of the tension sensing assembly, the tension of the material belt 37 can be adjusted in real time, thereby realizing the constant tension conveyance of the material belt 37.

[0053] The fuel cell GDL automatic feeding device realizes material roll discharge through the discharge roller 2, and realizes winding and collecting of protective film waste through the waste winding roller 4, realizes real-time detection of the conveying of the material belt 37 through the ultrasonic sensor 6, and performs real-time deviation correction of the material belt 37 through the deviation correction shaft 5 according to the detection result of the ultrasonic sensor 6, and provides a pneumatic clamp 7 for clamping the material belt 37 to facilitate material roll replacement. The material belt 37 is conveyed to the material receiving platform 9 after being guided by the first raw material guide shaft 8, and then the material belt 37 is pulled and conveyed by the traction knife seat 10, and the material belt 37 is cached by the buffer mechanism. Under the premise of keeping the tension of the material belt 37 constant, it will not affect the subsequent processing of the material belt 37, and the material roll can be replaced without stopping, thereby realizing automatic and orderly processing of the material belt 37, and the processing efficiency is greatly improved.

[0054] Through the fuel cell GDL automatic feeding device, the gas diffusion layer can be automatically and orderly fed, and it has a material strip caching function, ensuring the replacement of material rolls and continuous processing of material strips under the premise of constant tension, greatly improving the processing efficiency of the material strip and meeting the use requirements of GDL automatic cutting processing.

[0055] It should be understood that the purpose of these embodiments is only to illustrate the utility model and is not intended to limit the protection scope of the utility model. In addition, it should also be understood that after reading the technical content of the utility model, those skilled in the art can make various changes, modifications and / or variations to the utility model, and all of these equivalent forms also fall within the protection scope defined by the claims attached to this application.

Claims

1. A fuel cell GDL automatic feeding device, characterized in that: It comprises a frame, a material discharge mechanism is arranged on the frame, a material receiving platform is arranged downstream of the material discharge mechanism, a traction knife seat is arranged downstream of the material receiving platform, and a buffer mechanism is arranged downstream of the traction knife seat; The material discharging mechanism is provided with two sets, and the material discharging mechanism includes a material discharging roller, a waste material winding roller is provided on one side of the material discharging roller, a deviation correction shaft is provided downstream of the material discharging roller, an ultrasonic sensor is provided downstream of the deviation correction shaft, a pneumatic clamp is provided downstream of the ultrasonic sensor, and a first raw material guide shaft is provided downstream of the pneumatic clamp.

2. The fuel cell GDL automatic feeding device according to claim 1, characterized in that: A waste material guide shaft is arranged between the unwinding roller and the waste material winding roller, and a second raw material guide shaft is arranged downstream of the buffer mechanism.

3. The fuel cell GDL automatic feeding device according to claim 1, characterized in that: The cache mechanism comprises a plurality of material belt guide shafts mounted on the frame and arranged in sequence, a sliding mounting plate driven by a driving device is slidably mounted on the frame in a vertical direction, a plurality of lifting guide shafts are arranged in sequence on the sliding mounting plate, the lifting guide shafts are located below the material belt guide shafts, and the lifting guide shafts are respectively located between two adjacent material belt guide shafts; The frame is provided with a strip slide groove in the vertical direction, and a fixed bracket is fixedly installed on the sliding mounting plate. The fixed bracket passes through the frame through the strip slide groove, and the fixed bracket is connected with a counterweight assembly.

4. The fuel cell GDL automatic feeding device according to claim 3, characterized in that: Two parallel guide rails are vertically fixedly installed on the frame, a slider is slidably installed on the guide rail, and a sliding mounting plate is fixedly connected to the slider; The driving device includes a driving motor installed on the frame, and a driving wheel and a driven wheel are rotatably installed at both ends of the frame, the driving wheel is installed on the output shaft of the driving motor, a synchronous belt is wound around the frame between the driven wheel and the driving wheel, and the driven wheel is transmission-connected to the driving wheel through the synchronous belt, and one side of the synchronous belt is fixedly connected to the fixed bracket by a holding plate.

5. The fuel cell GDL automatic feeding device according to claim 4, characterized in that: The counterweight assembly includes a mounting seat fixedly mounted on the top of the frame, a guide roller is rotatably mounted on the mounting seat, a steel wire rope is wound around the guide roller, a lifting base plate is fixedly mounted on the fixed bracket, one end of the steel wire rope is connected to the lifting base plate, and the other end of the steel wire rope is connected to a counterweight block.

6. The fuel cell GDL automatic feeding device according to claim 5, characterized in that: A guide rod parallel to the guide rail is fixedly mounted on the back of the frame, a limit plate is slidably mounted on the guide rod along its axial direction, and the counterweight is fixedly connected to the limit plate.

7. The fuel cell GDL automatic feeding device according to claim 6, characterized in that: A grating ruler is vertically fixedly installed on the frame, a connecting plate is fixedly installed on the fixed bracket, and the connecting plate is connected to the universal head of the grating ruler.

8. The fuel cell GDL automatic feeding device according to claim 4, characterized in that: Polyurethane shock-absorbing blocks are fixedly installed at both ends of the guide rail; And / or, a hydraulic buffer assembly is provided between the two guide rails on the frame to realize shock absorption and buffering of the sliding mounting plate, and the hydraulic buffer assembly is provided with two groups, and the two groups of hydraulic buffer assemblies are respectively arranged at the two ends of the guide rails, and the hydraulic buffer assembly includes a buffer seat fixedly mounted on the frame, a hydraulic buffer is installed on the buffer seat, and block screws are also fixedly mounted on the buffer seat on both sides of the hydraulic buffer.

9. The fuel cell GDL automatic feeding device according to any one of claims 3 to 8, characterized in that: The frame is also provided with a tension sensor component, which is located at the head and tail ends of a plurality of the material belt guide shafts arranged in sequence, the tension sensor component is located below the material belt guide shaft, and the tension sensor component is arranged between two adjacent material belt guide shafts.

10. The fuel cell GDL automatic feeding device according to claim 9, characterized in that: The tension sensing assembly comprises a tension detection guide shaft, and the tension detection guide shaft is installed on the frame through a tension sensor.

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