An automatic stacking line for air-cooled stacks used in hydrogen fuel cell stack production

Abstract

The present invention relates to the field of hydrogen fuel cell technology, and specifically to an automatic stacking line for air-cooled stacks used in the production of hydrogen fuel cell stacks, including a frame, a storage rack, a material transfer mechanism and two conveyor belts, the material transfer mechanism including a support frame, a drive assembly and a pressure assembly, the electrode plates and bipolar plates are alternately transported to the material transfer mechanism by two conveyor belts, the electrode plates or bipolar plates are supported by sliding rollers at the bottom of the flip rack, and then the two flip racks are synchronously driven to move by the drive assembly, so that the electrode plates or bipolar plates fall naturally from between the two flip racks. With the downward pressure of the pressure assembly, the auxiliary electrode plate or bipolar plate can fall stably on the storage rack; the above process does not require manual intervention, ensuring the accuracy and neatness of the stacking. Automated stacking reduces dependence on manual operation and reduces labor costs, and due to the reduction in surface damage to the electrode plates and bipolar plates, the rework costs caused by unqualified materials are further reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of hydrogen fuel cells, and in particular to an automatic stacking line for air-cooled stacks used in the production of hydrogen fuel cell stacks. Background Art

[0002] A fuel cell is a power generation device that converts the chemical energy of a fuel directly into electrical energy. The fuel cell stack is mainly composed of end caps, end plates, electrode plates and bipolar plates. During the assembly process, personnel need to alternately install electrode plates and bipolar plates on the end plates, which is cumbersome and difficult to ensure product assembly accuracy. The current production method of existing equipment is inefficient, complex in structure, and requires a lot of manual participation, resulting in high production costs and unstable product quality.

[0003] Chinese patent authorization publication number CN114725463A discloses an automatic flexible stacking line for air-cooled piles, including a loader, a stacker and a stacking machine connected in sequence. The loader includes a loader shell, a silo arranged on the surface of the loader shell, a secondary positioning mechanism and a handling manipulator, and a lifting arm mechanism for handling products is provided above the silo. The stacker is composed of a transplanting mechanism and a conveying line body mechanism symmetrically arranged on both sides of the transplanting mechanism; the stacking machine includes a stacking machine shell, a stacking speed line mechanism arranged on the surface of the stacking machine shell, and a stacking mechanism erected above the stacking speed line mechanism. This patent can simultaneously complete the loading, stacking and stacking of products through the layout and cooperation of the three parts of the loader, the stacker and the stacking machine, significantly improving the degree of automation of the stacking line, ensuring the mass production of the battery stack, with a short process route and stable quality, thereby realizing low-cost and high-efficiency mass stacking production of the battery stack.

[0004] However, when the arm lifting mechanism loads the electrode plates and bipolar plates, the arm lifting mechanism first needs to be adjusted according to the height of the material, and as the electrode plates and bipolar plates on the battery stack continue to stack, the height of the battery stack will also change. In order to cope with this change, the arm lifting mechanism needs to constantly adjust the height difference between the material rack and the battery stack when stacking the electrode plates and bipolar plates. This frequent height adjustment not only increases the burden on the control system, but also causes the arm lifting mechanism to slow down its response speed during operation. In addition, due to the constant change in the material stacking height, the arm lifting mechanism also requires additional sensors and precise measuring devices to monitor the stacking height in real time and compensate for it. As a result, the entire stacking process becomes more complicated and time-consuming, increases the complexity of the operation, and makes the entire assembly process more cumbersome, further increasing production costs. Summary of the invention

[0005] In response to the above problems, an automatic stacking line for air-cooled stacks for hydrogen fuel cell stack production is provided, in which electrode plates and bipolar plates are alternately transported to a material transfer mechanism by two conveyor belts, and the electrode plates or bipolar plates are supported by multiple sliding rollers at the bottom of the flip rack. The two flip racks are then driven to move synchronously by the movement of a driving assembly, so that the electrode plates or bipolar plates naturally fall between the two flip racks. With the help of the downward pressure assembly on the electrode plate or bipolar plate, the auxiliary electrode plate or bipolar plate can fall stably on the storage rack; the above process does not require manual intervention, and both the electrode plates and bipolar plates maintain good alignment and stability, ensuring the accuracy and neatness of the stacking. Automated stacking reduces dependence on manual operation and reduces labor costs, and due to the reduction in surface damage to the electrode plates and bipolar plates, the rework costs caused by unqualified materials are further reduced.

[0006] In order to solve the problems of the prior art, the present invention provides an automatic stacking line for air-cooled stacks for hydrogen fuel cell stack production, comprising a frame and conveyor belts arranged on both sides of a material transfer mechanism, the two conveyor belts are used to transport bipolar plates and electrode plates to the frame alternately; a storage rack for placing the stack is arranged between the two conveyor belts; a material transfer mechanism for transporting electrode plates or bipolar plates is arranged on the frame; the material transfer mechanism comprises a support frame fixedly connected to the frame, a driving assembly and a pressing assembly, support rods that can extend along the transport direction of the conveyor belt are arranged on both sides of the support frame, a turning frame is sleeved on the two support rods, and a plurality of turning frames are arranged at the bottom of the turning frame. The sliding rollers are equidistantly arranged along the axis of the support rod, and the axis of the sliding rollers is perpendicular to the axis of the support rod; the driving component is slidable in the vertical direction and is arranged between the two flip frames; the pressing component is located below the driving component, and is slidable in the vertical direction and is arranged on the support frame; when the driving component slides in the vertical direction, the driving component will synchronously drive the two flip frames to rotate toward opposite sides around the axis of the support rod until the electrode plate or bipolar plate located between the two flip frames falls, and at the same time, the driving component will drive the pressing component below it to press down the electrode plate or bipolar plate by sliding the pressing component in the vertical direction.

[0007] Preferably, there are two pressing down assemblies, which are respectively located on the two ends of the support frame close to the support rod. The two pressing down assemblies include a mounting plate, and the extension direction of the mounting plate is perpendicular to the axial direction of the support rod. Both ends of the mounting plate are provided with guide rods extending in the vertical direction. The bottoms of the two guide rods are provided with buffer sleeves. The guide rods penetrate the support frame and slide with it, and the guide rods are transmission connected with the driving assembly.

[0008] Preferably, the driving assembly includes a driving frame, which is slidably arranged on the supporting frame in a vertical direction, and two mounting frames are mirror-symmetrically arranged on the driving frame, and both mounting frames are provided with inclined slide rails. A mounting rod parallel to the supporting rod is arranged above the flip frame, and a connecting rod is arranged between the mounting rod and the mounting frame, one end of the connecting rod is sleeved on the mounting rod, and the other end of the connecting rod can be slidably arranged on the slide rail.

[0009] Preferably, the driving assembly also includes a first screw rod and a first rotation driving motor. The driving frame spans between the two flip frames. The inner wall of the driving frame is provided with a guide bar perpendicular to the axis of the support rod. The two mounting frames can be relatively slidably arranged on the guide bar. The first screw rod is horizontally arranged on the driving frame, and the two mounting frames both penetrate the first screw rod and cooperate with its thread. The first rotation driving motor is located at one end of the driving frame, and the first screw rod is drivingly connected to the output shaft of the first rotation driving motor.

[0010] Preferably, two support plates that can slide relative to each other are provided at the bottom of the support frame, two support rods are respectively provided on the two support plates, and the support plates extend along the axial direction of the support rods, two down-pressing assemblies are respectively located at both ends of the support plates, and the two down-pressing assemblies are both located between the two support plates, the mounting plates of the two down-pressing assemblies are both retractable structures, and the guide rods at both ends of the mounting plates penetrate the support plates and slideably cooperate with them.

[0011] Preferably, a guide rail perpendicular to the axial direction of the support rod is provided at the bottom of the mounting frame, a pulley matching the guide rail is provided at the top of the guide rod of the mounting plate, the pulley is slidably arranged on the guide rail, and an elastic member is provided on the guide rod between the bottom of the mounting plate and the support plate.

[0012] Preferably, a second rotary drive motor is arranged at the bottom center of the support frame, a second screw rod in a horizontal state is arranged beside the second rotary drive motor, and mounting seats are arranged on both support plates, and the two mounting seats are respectively sleeved on the two ends of the second screw rod and matched with its threads.

[0013] Preferably, the driving assembly also includes a linear driver arranged on the supporting frame, the supporting frame is provided with a guide column extending in a vertical direction, the driving frame is sleeved on the guide column, and the top of the driving frame is transmission-connected to the linear driver.

[0014] Preferably, a third rotary drive motor is disposed on the side walls of the two turning frames, and the sliding rollers on the turning frames are drivingly connected to the third rotary drive motor.

[0015] Preferably, sensors for accurately identifying the position of the electrode plate or bipolar plate are provided at both ends of the bottom of the support frame.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] 1. The two conveyor belts of the present invention can alternately transport the electrode plates and bipolar plates to the material transfer mechanism in sequence, and the electrode plates or bipolar plates are supported by multiple sliding rollers at the bottom of the flip rack, and the sliding rollers only contact the edges of the electrode plates or bipolar plates. The sliding rollers are used to guide the electrode plates or bipolar plates to slide smoothly, and guide the electrode plates or bipolar plates to the top of the rack, and then drive the two flip racks to move synchronously through the movement of the driving assembly, so that the electrode plates or bipolar plates between the two flip racks can naturally fall onto the rack, and cooperate with the downward pressure of the electrode plates or bipolar plates by the downward pressure assembly, so that the auxiliary electrode plates or bipolar plates can fall stably on the rack, and the above process does not require manual intervention, and in the whole process, the electrode plates and bipolar plates maintain good alignment and stability, ensuring the accuracy and neatness of the stacking. Automated stacking reduces the dependence on manual operation, reduces labor costs, and due to the reduction of surface damage to the electrode plates and bipolar plates, the rework costs caused by unqualified materials are further reduced.

[0018] 2. The present invention provides a storage rack below the material transfer mechanism, and the storage rack has the function of telescoping in the vertical direction. After the material transfer mechanism alternately places the electrode plates and bipolar plates on the end plates of the storage rack, the storage rack will continuously slide in the vertical direction according to the height change during the stacking process, so that the top electrode plate or bipolar plate on the end plate always maintains the same vertical distance from the material transfer mechanism. This ensures that the electrode plates and bipolar plates can continue to be placed accurately and efficiently during the entire stacking process, avoiding alignment problems caused by changes in stacking height.

[0019] 3. The present invention ensures that the rotation angle of the flip frame can be accurately adjusted by adjusting the spacing between the two mounting frames, thereby meeting different stacking requirements and improving the stacking accuracy; increasing the adaptability and flexibility of the equipment. By adjusting the spacing between the two support plates, the movement of the support plates drives the movement of the support rods, thereby affecting the spacing between the flip frames, so that the material transfer mechanism can flexibly adapt to electrode plates or bipolar plates of different widths, thereby improving the versatility of the equipment, so that the equipment can handle battery stacks of different specifications and meet diverse production needs. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a three-dimensional structural schematic diagram of an automatic air-cooled stack assembly line for hydrogen fuel cell stack production.

[0021] Figure 2 It is a front view of an automatic stacking line for air-cooled stacks used in the production of hydrogen fuel cell stacks.

[0022] Figure 3 It is a top view of an automatic stacking line for air-cooled stacks used in the production of hydrogen fuel cell stacks.

[0023] Figure 4 It is the state of two flip racks in the automatic stacking line of an air-cooled stack for the production of hydrogen fuel cell stacks when transporting electrode plates or bipolar plates.

[0024] Figure 5 It is the state when the two flip racks in the automatic stacking line of an air-cooled stack for the production of hydrogen fuel cell stacks are opened.

[0025] Figure 6 It is a three-dimensional structural schematic diagram of a material transfer mechanism in an automatic stacking line for an air-cooled stack used in the production of hydrogen fuel cell stacks.

[0026] Figure 7 It is a three-dimensional structural schematic diagram of a support frame and two turning frames in an automatic stacking line for an air-cooled stack used in the production of hydrogen fuel cell stacks.

[0027] Figure 8 It is a three-dimensional structural schematic diagram of a support frame, two support plates and two mounting plates in an automatic stacking line for an air-cooled stack used in the production of hydrogen fuel cell stacks.

[0028] Fig. 9 It is a three-dimensional structural schematic diagram of two mounting frames and two mounting plates in an automatic stacking line for air-cooled stacks used in the production of hydrogen fuel cell stacks.

[0029] Fig.10 It is a three-dimensional structural schematic diagram of two mounting plates in an automatic stacking line for air-cooled stacks used in the production of hydrogen fuel cell stacks.

[0030] Fig.11 It is a three-dimensional structural schematic diagram of the support frame and the drive frame in the automatic stacking line of an air-cooled stack for the production of hydrogen fuel cell stacks.

[0031] The numbers in the figure are:

[0032] 1. Frame; 11. Conveyor belt; 12. Storage rack; 2. Material transfer mechanism; 21. Support frame; 211. Support rod; 212. Turning frame; 2121. Sliding roller; 2122. Mounting rod; 2123. Connecting rod; 2124. Third rotary drive motor; 213. Support plate; 2131. Mounting seat; 214. Second rotary drive motor; 215. Second screw rod; 216. Guide column; 217. Sensor; 2 2. Driving assembly; 221. Driving frame; 2211. Mounting frame; 2212. Slide rail; 2213. Guide rail; 2214. Guide bar; 222. First screw rod; 223. First rotary driving motor; 224. Linear drive; 23. Pressing assembly; 231. Mounting plate; 2311. Guide rod; 2312. Buffer sleeve; 2313. Pulley; 2314. Elastic member; 3. Electrode plate; 4. Bipolar plate. DETAILED DESCRIPTION

[0033] In order to further understand the features, technical means, specific objectives and functions of the present invention, the present invention is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0034] like Figures 1 to 5 As shown: an automatic stacking line for air-cooled stacks for hydrogen fuel cell stack production, comprising a frame 1 and conveyor belts 11 arranged on both sides of a material transfer mechanism 2, the two conveyor belts 11 are used to transport bipolar plates 4 and electrode plates 3 to the frame 1 alternately; a storage rack 12 for placing the stack is arranged between the two conveyor belts 11; the frame 1 is provided with a material transfer mechanism 2 for transporting electrode plates 3 or bipolar plates 4; the material transfer mechanism 2 comprises a support frame 21 fixedly connected to the frame 1, a driving assembly 22 and a pressing assembly 23, both sides of the support frame 21 are provided with support rods 211 that can extend along the transport direction of the conveyor belt 11, and the two support rods 211 are both provided with a turning frame 212, and the bottom of the turning frame 212 is provided with a plurality of equidistantly arranged components along the support rods 211 The sliding roller 2121 is arranged in the axial direction of the supporting rod 211, and the axis of the sliding roller 2121 is perpendicular to the axis of the supporting rod 211; the driving component 22 is slidably arranged between the two flipping frames 212 in the vertical direction; the pressing component 23 is located below the driving component 22, and the pressing component 23 is slidably arranged on the supporting frame 21 in the vertical direction; when the driving component 22 slides in the vertical direction, the driving component 22 will synchronously drive the two flipping frames 212 to rotate toward opposite sides around the axis of the supporting rod 211 until the electrode plate 3 or the bipolar plate 4 located between the two flipping frames 212 falls, and at the same time, the driving component 22 will drive the pressing component 23 below it, and the electrode plate 3 or the bipolar plate 4 is pressed down by the pressing component 23 sliding in the vertical direction.

[0035] First, the two conveyor belts 11 are used to transport the electrode plates 3 and the bipolar plates 4 respectively; during the transportation process, the conveyor belts 11 transport the electrode plates 3 and the bipolar plates 4 alternately in sequence to the material transfer mechanism 2 on the frame 1, and the material transfer mechanism 2 stacks them in a predetermined order, so that the electrode plates 3 and the bipolar plates 4 can be alternately stacked on the storage rack 12.

[0036] In the initial state, the two flip racks 212 are arranged parallel to each other on both sides of the support rack 21. When the conveyor belt 11 puts the electrode plate 3 or the bipolar plate 4 onto the material transfer mechanism 2, the electrode plate 3 or the bipolar plate 4 can move between the two flip racks 212, and the electrode plate 3 or the bipolar plate 4 is supported by a plurality of sliding rollers 2121 at the bottom of the two flip racks 212. It should be noted that the sliding rollers 2121 only contact the edges of the electrode plate 3 or the bipolar plate 4 during the movement, guide them to slide smoothly along the axis direction of the support rod 211, and guide them to the top of the storage rack 12 to reach the target position.

[0037] When the electrode plate 3 or the bipolar plate 4 moves to a predetermined position, the driving assembly 22 will synchronously drive the two flip frames 212 to move by sliding in the vertical direction, so that the two flip frames 212 can rotate to opposite sides around the axis of the support rod 211. At this time, the electrode plate 3 or the bipolar plate 4 located between the two flip frames 212 will naturally fall from between the two to the storage rack 12.

[0038] Since the sliding roller 2121 may cause the electrode plate 3 or the bipolar plate 4 to move when it is separated from the edge of the electrode plate 3 and the bipolar plate 4, the further movement of the driving component 22 drives the pressing component 23 located below the driving component 22, and the pressing component 23 presses down the electrode plate 3, so that the auxiliary electrode plate 3 or the bipolar plate 4 can fall stably on the storage rack 12; by accurately controlling the movement of the flip rack 212, the electrode plate 3 and the bipolar plate 4 can fall stably on the storage rack 12 at a predetermined position. The auxiliary role of the pressing component 23 further ensures the stability of the electrode plate 3 and the bipolar plate 4, and prevents possible misalignment or deviation during the stacking process. This process ensures high stacking accuracy, avoids the unevenness of the battery stack, and improves the quality of the stacking.

[0039] Through the above operation, the electrode plate 3 and the bipolar plate 4 can be automatically and stably stacked on the rack 12. This process does not require manual intervention, and throughout the process, the electrode plate 3 and the bipolar plate 4 maintain good alignment and stability, ensuring the accuracy and neatness of the stacking. Automated stacking reduces dependence on manual operation, reduces labor costs, and due to the reduction of surface damage to the electrode plate 3 and the bipolar plate 4, further reduces the rework cost caused by unqualified materials.

[0040] It should be noted that the rack 12 is provided with an end plate for carrying the electrode plate 3 and the bipolar plate 4, and the rack 12 has the function of telescoping in the vertical direction. After the material transfer mechanism 2 places the electrode plate 3 and the bipolar plate 4 alternately on the end plate of the rack 12, the rack 12 will continue to slide in the vertical direction according to the height change during the stacking process, so that the top electrode plate 3 and the bipolar plate 4 on the end plate always maintain the same vertical distance from the material transfer mechanism 2. This design ensures that the electrode plate 3 and the bipolar plate 4 can continue to be placed accurately and efficiently throughout the stacking process, avoiding alignment problems caused by changes in stacking height. In addition, in order to further improve the assembly efficiency, after the placement is completed, the battery stack on the rack 12 can be easily removed and enter the subsequent end cover assembly link. In order to ensure that the end plate is always firmly fixed during the stacking process, a special fixing tool can be set on the rack 12 to stabilize the position of the end plate. At the same time, guides can also be installed on the rack 12 to provide auxiliary support for the electrode plate 3 and the bipolar plate 4 to prevent displacement or offset during the stacking process, thereby ensuring that the stack of the battery stack is always in an aligned state and avoiding unnecessary interference caused by height adjustment. Through the above functions, the rack 12 can effectively solve the adjustment problem caused by the height change during the stacking of the battery stack, ensuring that each layer of the electrode plate 3 and the bipolar plate 4 can be accurately placed, thereby improving the efficiency and stability of the entire stacking process.

[0041] The increase in automation also reduces problems caused by human error, thereby reducing overall production costs. The equipment can be efficiently stacked in a limited space, reducing the equipment footprint. The equipment is suitable for deployment in a production environment with limited space, which can increase the equipment density of the workshop and optimize space utilization.

[0042] Since the present invention reduces unnecessary material movement and collision during the entire stacking process, the stacking process is more stable and quiet, which helps to improve the environmental quality of the production workshop. At the same time, the automated operation reduces manual contact, helps to reduce the labor intensity and safety risks of the staff, and improves the work safety of the production line.

[0043] The stacking arrangement of the present invention has strong adaptability and can be adjusted according to electrode plates 3 and bipolar plates 4 of different specifications to meet the production requirements of different types of hydrogen fuel cell stacks. It is not only suitable for current hydrogen fuel cell production, but also can adapt to changes in future technological development, and has strong flexibility and scalability.

[0044] During operation, since the sliding roller 2121 only contacts the edge of the electrode plate 3 or the bipolar plate 4, the large-area friction with the surface of the electrode plate 3 and the bipolar plate 4 is effectively reduced, thereby greatly reducing the risk of surface scratches and damage. This precise contact method ensures that the battery stack will not be subjected to unnecessary wear during transportation and stacking, and maintains the surface integrity of the electrode plate 3 and the bipolar plate 4.

[0045] like Figures 4 to 10 As shown: there are two pressing components 23, and the two pressing components 23 are respectively located on the two ends of the support frame 21 close to the support rod 211. The two pressing components 23 include a mounting plate 231, and the extension direction of the mounting plate 231 is perpendicular to the axial direction of the support rod 211. Both ends of the mounting plate 231 are provided with guide rods 2311 extending in the vertical direction, and the bottoms of the two guide rods 2311 are both provided with buffer sleeves 2312. The guide rods 2311 penetrate the support frame 21 and slide with it, and the guide rods 2311 are transmission connected with the driving component 22.

[0046] The movement of the driving assembly 22 drives the movement of the guide rod 2311, so that the guide rod 2311 can slide in the vertical direction on the support frame 21. Since the two pressing assemblies 23 are respectively located on the two ends of the support frame 21 close to the support rod 211, the guide rod 2311 can evenly apply downward pressure through its bottom end, ensuring that when the electrode plate 3 or the bipolar plate 4 moves on the flip frame 212, the guide rod 2311 can apply pressure to the electrode plate 3 or the bipolar plate 4, ensuring that the electrode plate 3 or the bipolar plate 4 always remains stable during the stacking process. Through the setting of the mounting plate 231, the pressing assembly 23 can apply downward pressure smoothly and accurately, effectively avoiding the problem of offset or uneven downward pressure caused by a single pressure point. The above method can effectively improve the production efficiency of the stacking line, reduce the need for human intervention, and ensure the stability of the stacking process.

[0047] The buffer sleeve 2312 on the guide rod 2311 is preferably made of rubber. The buffer sleeve 2312 can play a buffering role in the pressing process, reduce the impact force between mechanical parts, and prevent the surface of the electrode plate 3 or the bipolar plate 4 from being damaged due to excessive pressure or sudden impact. This buffer setting not only protects the electrode plate 3 and the bipolar plate 4, but also prolongs the service life of the device.

[0048] The guide rod 2311 passes through the support frame 21 and slidably cooperates with it, so that the pressing component 23 can slide smoothly and be accurately positioned, avoiding failures caused by deflection or unbalanced pressure of the pressing component 23, and improving the flexibility and efficiency of the pressing operation.

[0049] like Figures 4 to 9As shown: the driving component 22 includes a driving frame 221, which can be slidably arranged on the supporting frame 21 in a vertical direction, two mounting frames 2211 are mirror-symmetrically arranged on the driving frame 221, and both mounting frames 2211 are provided with inclined slide rails 2212, and a mounting rod 2122 parallel to the supporting rod 211 is arranged on the flip frame 212 above the supporting rod 211, and a connecting rod 2123 is arranged between the mounting rod 2122 and the mounting frame 2211, one end of the connecting rod 2123 is sleeved on the mounting rod 2122, and the other end of the connecting rod 2123 can be slidably arranged on the slide rail 2212.

[0050] When the driving frame 221 slides in the vertical direction, the driving frame 221 drives the two mounting frames 2211 to move synchronously, so that the two mounting frames 2211 also slide in the vertical direction (at this time, the distance between the two mounting frames 2211 is fixed). The movement of the mounting frame 2211 causes the slide rail 2212 to move with it, and the movement of the slide rail 2212 pushes the connecting rod 2123, so that the end of the connecting rod 2123 can slide along the slide rail 2212, thereby pulling the other end of the connecting rod 2123, and the movement of the connecting rod 2123 pulls the mounting rod 2122 connected thereto. Since the mounting rod 2122 is installed on the flip frame 212, the movement of the mounting rod 2122 drives the flip frame 212 to rotate around the axis of the support rod 211, thereby realizing that the displacement of the driving frame 221 synchronously drives the two flip frames 212 to rotate. Through the cooperation of the driving frame 221, the mounting frame 2211, the slide rail 2212 and the connecting rod 2123, the driving frame 221 can accurately control the rotation of the flip frame 212 by moving, so that the flip frame 212 can rotate smoothly and accurately around the axis of the support rod 211, ensuring the smoothness and stability of the stacking process. The inclined slide rail 2212 is adopted, so that the vertical sliding of the driving frame 221 can effectively transmit power to the mounting frame 2211 and the flip frame 212, ensuring the high efficiency of power transmission, reducing the friction and energy loss of the intermediate transmission link, improving the driving efficiency, and thus improving the working efficiency of the entire stacking line.

[0051] The two mounting frames 2211 are arranged in mirror symmetry, so that the force transmission is more uniform, ensuring the consistency of the movement of the two flip frames 212. This can effectively avoid mechanical failures or stacking deviations caused by uneven power transmission, and improve assembly accuracy and stability.

[0052] The complex driving function of the overturning frame 212 is realized by a small number of mechanical parts, which reduces the complexity of the system, improves the reliability and maintainability of the mechanical system, and reduces the probability of failure.

[0053] like Figures 4 to 9 and Fig.11As shown: the driving component 22 also includes a first screw rod 222 and a first rotation driving motor 223, the driving frame 221 spans between the two flip frames 212, the inner wall of the driving frame 221 is provided with a guide bar 2214 perpendicular to the axis of the support rod 211, and the two mounting frames 2211 can be relatively slidably arranged on the guide bar 2214, the first screw rod 222 is horizontally arranged on the driving frame 221, and the two mounting frames 2211 both penetrate the first screw rod 222 and are threadedly matched with it, the first rotation driving motor 223 is located at one end of the driving frame 221, and the first screw rod 222 is drivingly connected to the output shaft of the first rotation driving motor 223.

[0054] By starting the first rotary drive motor 223, the output shaft of the first rotary drive motor 223 drives the rotation of the first screw rod 222 connected thereto, and the rotation of the first screw rod 222 drives the movement of the two mounting frames 2211 threadedly matched therewith. The two ends of the first screw rod 222 have threads in opposite directions, so that the two mounting frames 2211 can slide relatively along the guide bar 2214 of the driving frame 221. Through the threaded cooperation of the first screw rod 222 and the mounting frame 2211, the sliding of the two mounting frames 2211 can be accurately controlled. Through the relative sliding of the two mounting frames 2211, the spacing between the two mounting frames 2211 can be adjusted, ensuring that the rotation angle of the flip frame 212 can be accurately adjusted, thereby meeting different stacking requirements and improving the stacking accuracy; increasing the adaptability and flexibility of the equipment.

[0055] The cooperation of the first screw rod 222 and the first rotary drive motor 223 can provide a smooth and continuous driving force, so that the sliding of the drive frame 221 and the mounting frame 2211 is smoother. The design of the guide bar 2214 ensures the stable movement of the mounting frame 2211, reduces the error caused by uneven sliding or stuck, and improves the stability of the overall stacking line. By controlling the first rotary drive motor 223 and the first screw rod 222, precise automatic operation can be achieved, the need for manual intervention can be reduced, and production efficiency can be improved. In addition, with the adjustable speed of the first rotary drive motor 223, the rotation speed and angle of the flip frame 212 can be adjusted according to actual needs to meet the requirements of different production scenarios. And the transmission mode of the first screw rod 222 has the self-locking characteristic, so that the position of the mounting frame 2211 can remain stable after being adjusted, so that it can achieve continuous operation after adjustment, and avoid misoperation due to the inability to self-lock.

[0056] like Figures 4 to 8As shown: two support plates 213 that can slide relative to each other are arranged at the bottom of the support frame 21, two support rods 211 are respectively arranged on the two support plates 213, and the support plates 213 extend along the axial direction of the support rods 211, two pressing components 23 are respectively located at the two ends of the support plates 213, and the two pressing components 23 are both located between the two support plates 213, the mounting plates 231 of the two pressing components 23 are both retractable structures, and the guide rods 2311 at both ends of the mounting plates 231 penetrate the support plates 213 and slide with them.

[0057] By adjusting the distance between the two support plates 213, the support rods 211 connected thereto are driven by the relative movement of the support plates 213, thereby affecting the distance between the two flip frames 212. In this way, not only can the stability of the electrode plate 3 or the bipolar plate 4 in the flip frame 212 be ensured, but also the precise alignment of the electrode plate 3 or the bipolar plate 4 can be ensured during the assembly process, thereby improving the stacking accuracy. It can flexibly adapt to electrode plates 3 or bipolar plates 4 of different widths, thereby improving the versatility of the equipment, so that the equipment can handle battery stacks of different specifications and meet diverse production needs.

[0058] Through the adjustable setting between the two support plates 213, electrode plates 3 or bipolar plates 4 of different sizes can be quickly adapted without frequent replacement or adjustment of other devices. This design greatly improves the flexibility of the stacking line, reduces the conversion time in the production process, and improves the overall stacking efficiency. By making the mounting plate 231 a retractable structure, the mounting plate 231 can be matched with the adjustment of the support plate 213, and the support plate 213 and the mounting plate 231 work together to make the entire stacking process more automated. In actual operation, the adjustment of the support plate 213 and the pressing action of the pressing assembly 23 can be automatically completed by the control system, reducing manual intervention, improving the level of automation, and reducing errors caused by human operation. By automatically adjusting the spacing between the support plates 213, not only the stacking efficiency is improved, but also the time loss caused by manual adjustment or tool replacement is reduced. This design that simplifies operation and increases stacking speed helps to reduce production costs.

[0059] like Figures 4 to 10 As shown: a guide rail 2213 perpendicular to the axial direction of the support rod 211 is arranged at the bottom of the mounting frame 2211, a pulley 2313 matching the guide rail 2213 is arranged at the top of the guide rod 2311 of the mounting plate 231, the pulley 2313 is slidably arranged on the guide rail 2213, and an elastic member 2314 is arranged on the guide rod 2311 between the bottom of the mounting plate 231 and the support plate 213.

[0060] The movement of the driving frame 221 drives the movement of the mounting frame 2211, and the downward movement of the mounting frame 2211 drives the movement of the guide rail 2213, thereby driving the pulley 2313 through the guide rail 2213, and then driving the movement of the guide rod 2311 and the mounting plate 231. This fully automated driving method reduces manual intervention and improves the automation of the entire stacking process. It reduces the time consumption caused by manual adjustment, thereby improving production efficiency and work accuracy.

[0061] The guide rail 2213 and the pulley 2313 are arranged to ensure that the guide rod 2311 is always kept in the guide rail 2213. The deviation of the guide rod 2311 is effectively avoided, the stability of the mounting frame 2211 is guaranteed, the precise driving of the pressing assembly 23 by the mounting plate 231 and the smooth movement of the pressing assembly 23 are ensured, and the movement of the mounting plate 231 of the pressing assembly 23 is made more stable. Through the interaction between the pulley 2313 and the guide rail 2213, the extension and retraction of the mounting plate 231 can be accurately controlled, thereby achieving higher operating accuracy and avoiding the driving instability caused by deviation or friction.

[0062] The elastic member 2314 plays a buffering role, and plays a role in shock absorption and impact absorption between the mounting plate 231 and the support plate 213. The compression and rebound of the elastic member 2314 can effectively reduce mechanical vibration and impact, ensure the stability of the mounting plate 231 during movement, thereby reducing errors and equipment wear during the assembly process, and extending the service life of the equipment.

[0063] like Figures 4 to 8 As shown: a second rotary drive motor 214 is arranged at the bottom center of the support frame 21, a second screw rod 215 in a horizontal state is arranged beside the second rotary drive motor 214, and mounting seats 2131 are arranged on the two support plates 213, and the two mounting seats 2131 are respectively sleeved on the two ends of the second screw rod 215 and matched with its threads.

[0064] The two ends of the second screw rod 215 have threads in opposite directions. By starting the second rotary drive motor 214, the output shaft of the second rotary drive motor 214 drives the rotation of the second screw rod 215 connected thereto. The rotation of the second screw rod 215 drives the movement of the two mounting seats 2131. The threads in opposite directions of the second screw rod 215 enable the two mounting seats 2131 to move relative to each other, thereby driving the two support plates 213 to slide relative to each other.

[0065] The above-mentioned operating equipment can realize fully automated control, and the spacing of the support plates 213 can be quickly adjusted according to the needs, reducing the complexity and error of manual operation. By driving the second screw 215 to rotate through the second rotary drive motor 214, the spacing of the support plates 213 can be accurately adjusted to ensure the accurate position of the electrode plates 3 and the bipolar plates 4 during the stacking process, thereby improving the overall assembly accuracy and reducing the stacking deviation. Compared with the traditional manual adjustment method, the automated adjustment greatly reduces the maintenance requirements of the equipment, reduces the failure rate and operating costs. The production line can automatically and efficiently process electrode plates 3 and bipolar plates 4 of different specifications, reducing manual intervention and improving production speed and work efficiency. By tightly integrating the second rotary drive motor 214 with the second screw 215 system, the spatial layout of the equipment is optimized, the mechanical structure is simplified, the occupied space is saved, the overall compactness of the equipment is improved, and it is suitable for a variety of production environments.

[0066] like Figures 4 to 8 and Fig.11 As shown: the driving assembly 22 also includes a linear driver 224 arranged on the support frame 21, and the support frame 21 is provided with a guide column 216 extending in the vertical direction. The driving frame 221 is sleeved on the guide column 216, and the top of the driving frame 221 is transmission-connected to the linear driver 224.

[0067] The linear drive 224 is preferably a cylinder, and the introduction of the linear drive 224 provides precise linear motion control. As a driving element, the cylinder can accurately adjust the position of the drive frame 221 according to the set control signal to ensure that the drive frame 221 can move smoothly and quickly in the vertical direction. This high-precision control is crucial to the assembly process of the electrode plate 3 and the bipolar plate 4, and can ensure the accuracy of the position of the components during the stacking process. The guide column 216 provided on the support frame 21 plays a guiding role to ensure the smooth sliding of the drive frame 221 in the vertical direction. The cooperation between the guide column 216 and the drive frame 221 effectively reduces the friction of the drive frame 221 during movement, avoids vibration or jamming caused by uneven movement, and improves the stability of the system and the reliability of long-term operation. The setting of the linear drive 224 and the guide column 216 simplifies the structure of the drive assembly 22 and saves equipment installation space. Compared with the traditional complex mechanical transmission system, the device is not only simpler, but also can greatly reduce the occupied area of ​​the equipment, and is suitable for application in stacking lines that require a compact layout.

[0068] As a cylinder-type drive system, the linear actuator 224 can complete efficient displacement adjustment in a short time, making the equipment respond more quickly and the drive more stable, ensuring that the production line can be automatically operated at a higher speed and improving work efficiency. It is especially suitable for automatic stacking systems that require fast and precise position control.

[0069] like Figures 4 to 7 As shown, a third rotation drive motor 2124 is disposed on the side walls of the two turning frames 212 , and the sliding roller 2121 on the turning frames 212 is transmission-connected to the third rotation drive motor 2124 .

[0070] After the two conveyor belts 11 transfer the electrode plates 3 and the bipolar plates 4 to the material transfer mechanism 2, the electrode plates 3 and the bipolar plates 4 need to slide for a certain distance, so the conveyor belts 11 need to be adjusted to a suitable speed, which places high requirements on the conveyor belts 11 to ensure that the positions of the electrode plates 3 and the bipolar plates 4 when they are moved to the material transfer mechanism 2 remain stable. In addition, a material blocking mechanism can be set on the material transfer mechanism 2 to further ensure that the electrode plates 3 and the bipolar plates 4 always remain stable during the transmission process, avoid the plates from slipping or misalignment, and ensure the smooth progress of the entire assembly process.

[0071] By setting the third rotary drive motor 2124, the sliding roller 2121 can rotate smoothly, thereby realizing accurate positioning of the electrode plate 3 or the bipolar plate 4, avoiding deviation or misalignment during the stacking process, and ensuring the stacking stability of each layer. By independently setting the rotary drive motors on the side walls of the two flip racks 212, the sliding rollers 2121 of the two flip racks 212 can be driven at the same time to achieve synchronous operation. Manual intervention is reduced and the degree of automation is improved. The above method can transport the electrode plate 3 or the bipolar plate 4 more accurately, and the requirements for the conveyor belt 11 are relatively low, and there is no need to add a material blocking mechanism.

[0072] like Figures 4 to 7 As shown: sensors 217 for accurately identifying the position of the electrode plate 3 or the bipolar plate 4 are provided at both ends of the bottom of the support frame 21.

[0073] Through the sensor 217, the specific positions of the electrode plate 3 and the bipolar plate 4 can be monitored in real time to ensure their accurate docking during transportation and stacking, avoid offset or misalignment, and improve assembly accuracy. The sensor 217 can effectively cooperate with the control system to realize automatic identification of the position of the electrode plate 3 or the bipolar plate 4, thereby triggering subsequent actions, such as adjusting the speed of the conveyor belt 11 or enabling the down-pressing component 23, to enhance the automation and response speed of the equipment. The application of the sensor 217 reduces manual intervention, improves the handling efficiency of the electrode plate 3 and the bipolar plate 4, avoids assembly problems caused by position errors, and optimizes the overall operation efficiency of the production line. Through accurate position information, collisions or frictions between the electrode plate 3 and the bipolar plate 4 due to inaccurate position can be avoided, thereby effectively reducing damage to the plate during assembly, extending the service life of the equipment, and ensuring product quality.

[0074] The above embodiments only express one or several implementation modes of the present invention, and the description thereof is relatively specific and detailed, but it cannot be understood as limiting the protection scope of the present invention. It should be pointed out that, for a person of ordinary skill in the art, several variations and improvements can be made without departing from the concept of the present invention, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the attached claims.

Claims

1. An automatic stacking line for air-cooled stacks for hydrogen fuel cell stack production, comprising a frame (1) and conveyor belts (11) arranged on both sides of a material transfer mechanism (2), the two conveyor belts (11) being used to alternately transport bipolar plates (4) and electrode plates (3) to the frame (1); a storage rack (12) for placing a stack is arranged between the two conveyor belts (11); the characteristic is that: A material transfer mechanism (2) for transporting electrode plates (3) or bipolar plates (4) is provided on the frame (1); The material transfer mechanism (2) comprises a support frame (21) fixedly connected to the frame (1), a driving assembly (22) and a pressing assembly (23); support rods (211) capable of extending along the transport direction of the conveyor belt (11) are arranged on both sides of the support frame (21); a turning frame (212) is sleeved on the two support rods (211); a plurality of sliding rollers (2121) equidistantly arranged along the axis direction of the support rod (211) are arranged at the bottom of the turning frame (212); and the axis of the sliding roller (2121) is perpendicular to the axis of the support rod (211); The driving assembly (22) is slidably disposed in a vertical direction between the two turning frames (212); The pressing assembly (23) is located below the driving assembly (22), and the pressing assembly (23) is slidably disposed on the support frame (21) in a vertical direction; When the driving component (22) slides in the vertical direction, the driving component (22) will synchronously drive the two flip frames (212) to rotate toward opposite sides around the axis of the support rod (211) until the electrode plate (3) or the bipolar plate (4) located between the two flip frames (212) falls down. At the same time, the driving component (22) will drive the pressing component (23) below it to press down the electrode plate (3) or the bipolar plate (4) by sliding the pressing component (23) in the vertical direction.

2. The automatic air-cooled stack assembly line for hydrogen fuel cell stack production according to claim 1 is characterized in that: The two pressing components (23) are respectively located on the two ends of the support frame (21) near the support rod (211). The two pressing components (23) each include a mounting plate (231). The extending direction of the mounting plate (231) is perpendicular to the axial direction of the support rod (211). Both ends of the mounting plate (231) are provided with guide rods (2311) extending in a vertical direction. The bottoms of the two guide rods (2311) are both sleeved with buffer sleeves (2312). The guide rods (2311) penetrate the support frame (21) and are slidably matched therewith. The guide rods (2311) are drivingly connected to the driving component (22).

3. The automatic air-cooled stack assembly line for hydrogen fuel cell stack production according to claim 2 is characterized in that: The driving assembly (22) comprises a driving frame (221), the driving frame (221) being slidably arranged on the supporting frame (21) in a vertical direction, two mounting frames (2211) being mirror-symmetrically arranged on the driving frame (221), both mounting frames (2211) being provided with inclined slide rails (2212), a mounting rod (2122) being arranged above the supporting rod (211) on the flip frame (212) and being parallel to the supporting rod (211), a connecting rod (2123) being arranged between the mounting rod (2122) and the mounting frame (2211), one end of the connecting rod (2123) being sleeved on the mounting rod (2122), and the other end of the connecting rod (2123) being slidably arranged on the slide rail (2212).

4. The automatic air-cooled stack assembly line for hydrogen fuel cell stack production according to claim 3 is characterized in that: The driving assembly (22) further comprises a first screw rod (222) and a first rotation driving motor (223); the driving frame (221) spans between the two flip frames (212); a guide bar (2214) perpendicular to the axis of the support rod (211) is provided on the inner wall of the driving frame (221); two mounting frames (2211) are relatively slidably arranged on the guide bar (2214); the first screw rod (222) is horizontally arranged on the driving frame (221); the two mounting frames (2211) both penetrate the first screw rod (222) and are threadedly engaged with the first screw rod (222); the first rotation driving motor (223) is located at one end of the driving frame (221); and the first screw rod (222) is drivingly connected to an output shaft of the first rotation driving motor (223).

5. The automatic air-cooled stack assembly line for hydrogen fuel cell stack production according to claim 4, characterized in that: Two support plates (213) capable of sliding relative to each other are arranged at the bottom of the support frame (21), two support rods (211) are respectively arranged on the two support plates (213), and the support plates (213) extend along the axis direction of the support rods (211), two pressing components (23) are respectively located at two ends of the support plates (213), and the two pressing components (23) are both located between the two support plates (213), the mounting plates (231) of the two pressing components (23) are both telescopic structures, and the guide rods (2311) at both ends of the mounting plates (231) penetrate the support plates (213) and slidably cooperate with the support plates (213).

6. The automatic air-cooled stack assembly line for hydrogen fuel cell stack production according to claim 5, characterized in that: A guide rail (2213) perpendicular to the axial direction of the support rod (211) is arranged at the bottom of the mounting frame (2211); a pulley (2313) matching the guide rail (2213) is arranged at the top of the guide rod (2311) of the mounting plate (231); the pulley (2313) is slidably arranged on the guide rail (2213); and an elastic member (2314) is arranged on the guide rod (2311) between the bottom of the mounting plate (231) and the support plate (213).

7. The automatic air-cooled stack assembly line for hydrogen fuel cell stack production according to claim 5, characterized in that: A second rotary drive motor (214) is arranged in the center of the support frame (21), a second screw rod (215) in a horizontal state is arranged beside the second rotary drive motor (214), and mounting seats (2131) are arranged on both support plates (213), and the two mounting seats (2131) are respectively sleeved on the two ends of the second screw rod (215) and threadedly matched therewith.

8. The automatic air-cooled stack assembly line for hydrogen fuel cell stack production according to claim 3 is characterized in that: The driving assembly (22) further comprises a linear driver (224) arranged on the support frame (21); a guide column (216) extending in a vertical direction is arranged on the support frame (21); the driving frame (221) is sleeved on the guide column (216); and the top of the driving frame (221) is drivingly connected to the linear driver (224).

9. The automatic air-cooled stack assembly line for hydrogen fuel cell stack production according to claim 1, characterized in that: A third rotary drive motor (2124) is disposed on the side walls of the two turning frames (212), and the sliding roller (2121) on the turning frames (212) is drivingly connected to the third rotary drive motor (2124).

10. The automatic air-cooled stack assembly line for hydrogen fuel cell stack production according to claim 9, characterized in that: Sensors (217) for accurately identifying the position of the electrode plate (3) or the bipolar plate (4) are provided at both ends of the bottom of the support frame (21).

Images