A hydrogen fuel cell electrode plate dispensing and bonding device with continuous pressure-maintaining function

Abstract

The present invention relates to the technical field of hydrogen fuel cell production equipment, and specifically to a hydrogen fuel cell electrode plate dispensing and bonding device with a continuous pressure-maintaining function, comprising a continuous pressure-maintaining bonding platform arranged beside a dispensing robot and a material discharge robot, the continuous pressure-maintaining bonding platform comprising a limiting template, a linear conveyor, a pressure-maintaining limiting tool, an unlocking and adjusting device, a lifting and ejecting device, a pressure-maintaining pushing and ejecting device and a protective plate placing device; the limiting template is horizontally installed on a frame; the linear conveyor is installed below the limiting template; a plurality of pressure-maintaining limiting tools are provided and distributed on the linear conveyor, and a plurality of limiting card joints are provided on the top of the pressure-maintaining limiting tool; the lifting and ejecting device is arranged directly below the limiting template; the pressure-maintaining pushing and ejecting device is installed below the lifting and ejecting device; a plurality of unlocking and adjusting devices are provided and distributed below the limiting template; the protective plate placing device is arranged beside the limiting template; the present invention can effectively improve production efficiency and optimize the pressure-maintaining effect.

Description

Technical Field

[0001] The present invention relates to the technical field of hydrogen fuel cell production equipment, and in particular to a hydrogen fuel cell electrode plate dispensing and bonding device with a continuous pressure-maintaining function. Background Art

[0002] As a type of proton exchange membrane fuel cell, hydrogen fuel cells can convert chemical energy into electrical energy through redox reactions that continuously occur at the anode and cathode. The electrode plate is an important component of a typical hydrogen fuel cell stack, which serves as both a current collector and a support for the membrane electrode. The flow channel on the electrode plate is used as a channel for fuel hydrogen and oxidant to enter the anode and cathode surfaces, and as a channel to carry away the water generated during the operation of the fuel cell. Electrode plates are mainly divided into three categories according to the material: metal plates, composite plates, and graphite plates. Among them, graphite plates and composite plates are thicker and not easy to warp, and the same fixing fixture can be used during processing.

[0003] Chinese patent number CN110739467B discloses a device and method for dispensing and bonding hydrogen fuel cell electrode plates. The device includes a multifunctional platform, a first conveying mechanism, a first handling manipulator, a dispensing mechanism, a Y-axis manipulator, an X-axis manipulator, a bonding and pressure-maintaining fixture, a handling robot, a second conveying mechanism, a second correction mechanism, a third conveying mechanism, a second handling manipulator, and a controller, wherein the dispensing mechanism includes a dispensing machine and a visual acquisition device. The device provides an automated device for the bonding production of graphite plates and the dispensing and sealing of electrode plates, realizes the automated synthesis of graphite plates, and the automated dispensing of electrode plates, is suitable for mechanized mass production, and improves the production efficiency of products. And the rubber strips formed by dispensing have good sealing performance, which is conducive to improving the quality of products.

[0004] The above device is used during the production of graphite plate bonding. Before each glue bonding, the hydrogen light plate needs to be repeatedly moved to the specified position. This process is not only time-consuming, but also greatly reduces production efficiency. Secondly, after the glue bonding is completed, these plates are often placed in batches in the pressure holding fixture. After all the plates are placed, the cover plates are uniformly locked for pressure holding. This mode of operation leads to a significant problem. The hydrogen light plates and air plates placed early will experience unnecessary waiting time while waiting for the subsequent plates to be placed, and miss the best time for pressure holding. Since the glue is highly sensitive to pressure and time in the early stage of curing, a long wait may cause uneven curing of the glue, affecting the tightness and durability of the glue bonding, and ultimately reducing the overall performance of the hydrogen fuel cell. Summary of the invention

[0005] In view of the above problems, a hydrogen fuel cell electrode plate dispensing and bonding device with a continuous pressure holding function is provided. The continuous pressure holding bonding table can effectively improve production efficiency and optimize the pressure holding effect.

[0006] In order to solve the problems of the prior art, the present invention provides a hydrogen fuel cell electrode plate dispensing and laminating device with a continuous pressure-maintaining function, comprising a continuous pressure-maintaining laminating platform arranged beside a dispensing robot and a material discharge robot, the continuous pressure-maintaining laminating platform comprising a limiting template, a linear conveyor, a pressure-maintaining limiting tool, an unlocking adjustment device, a lifting and ejecting device, a pressure-maintaining pushing device and a protection plate placement device; the limiting template is horizontally installed on a frame, and a limiting material discharge area is provided on the limiting template; the linear conveyor is installed below the limiting template; a plurality of pressure-maintaining limiting tools are provided and distributed on the linear conveyor, and a plurality of limiting card joints are provided on the top of the pressure-maintaining limiting tool; the lifting and ejecting device is arranged directly below the limiting template, the lifting and ejecting device is fixedly connected to the bottom of the linear conveyor, and the working end of the lifting and ejecting device extends vertically upward; the pressure-maintaining pushing device is installed below the lifting and ejecting device, and the working end of the pressure-maintaining pushing device extends vertically upward; a plurality of unlocking adjustment devices are provided and distributed below the limiting template, and the unlocking end of the unlocking adjustment device corresponds one by one to the limiting card joint; the protection plate placement device is arranged beside the limiting template.

[0007] Preferably, a limiting placement opening is provided at the center position of the limiting template, a limiting clamping strip is provided on the inner wall of the limiting placement opening, a docking groove corresponding to the pressure-maintaining limiting device is provided at the bottom of the limiting template, and a sheet material placement opening is provided on the side of the limiting template.

[0008] Preferably, the pressure-maintaining and limiting device comprises a pressure-maintaining base, on which a plurality of right-angle guide plates and a vertical mounting plate are provided, and a limiting card joint is fixedly mounted on the top of the vertical mounting plate.

[0009] Preferably, a plurality of positioning docking holes are provided at the bottom of the pressure-maintaining base, a planar push plate is provided on the pressure-maintaining base, a first guide column is installed on the planar push plate, the first guide column is slidably connected to the pressure-maintaining base, a first pushing spring is installed between the first guide column and the pressure-maintaining base, and a first through hole is provided on both the pressure-maintaining base and the planar push plate.

[0010] Preferably, the limit card joint includes a mounting rail horizontally installed on the top of the vertical mounting plate, a movable mounting block is slidably installed inside the mounting rail, an unlocking groove is provided at the bottom of the movable mounting block, a first unlocking angle is provided inside the unlocking groove, a return spring is installed between the mounting rail and the movable mounting block, a movable card block is installed on the movable mounting block, a support plane is provided on the top of the movable card block, and an extrusion angle is provided on the side of the movable card block.

[0011] Preferably, the unlocking and adjusting device includes a rotating mounting shaft rotatably mounted on the frame, a plurality of rotating unlocking hooks are provided on the rotating mounting shaft, a second unlocking angle is provided at one end of the rotating unlocking hook away from the rotating mounting shaft, and the unlocking and adjusting device also includes a rotary drive for driving the rotating mounting shaft to rotate.

[0012] Preferably, the lifting and pushing device includes a mounting base plate installed on the bottom of the linear conveyor, a first lifting push plate is provided above the mounting base plate, a plurality of second guide columns are installed on the first lifting push plate, the second guide columns are slidably connected to the mounting base plate, a plurality of docking guide blocks are provided on the top of the first lifting push plate, both the mounting base plate and the first lifting push plate are provided with second through holes, a first linear drive is also installed on the mounting base plate, the output end of the first linear drive is connected to the first lifting push plate, a limited position blocking device is also installed on the mounting base plate, the limited position blocking device includes a second linear drive installed on the mounting base plate, a lifting blocking frame is installed on the output end of the second linear drive, and the lifting blocking frame is slidably connected to the mounting base plate.

[0013] Preferably, the pressure-maintaining pushing device includes a ball screw slide fixedly mounted on the mounting base plate, a second lifting push plate is mounted on the movable end of the ball screw slide, an inductive pushing assembly is mounted on the second lifting push plate, and the top of the inductive pushing assembly extends upward through the second through hole.

[0014] Preferably, the inductive pushing assembly includes a plurality of vertical push plates mounted on the second lifting push plate, a telescopic resistance block is slidably mounted on the top of the vertical push plate, a second pushing spring is installed between the telescopic resistance block and the vertical push plate, and a pressure sensor is also installed on the top of the telescopic resistance block.

[0015] Preferably, the protection plate placement device includes a push conveyor arranged beside the limiting template, the discharge end of the push conveyor is connected to the plate placement opening of the limiting template, and a limiting storage rail is installed on the push conveyor.

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

[0017] 1. The present invention realizes the automatic conveying, positioning and pressure-maintaining processing of hydrogen light plates and air plates by integrating a linear conveyor, a lifting and ejecting device, a pressure-maintaining ejecting device, a pressure-maintaining limiter, an unlocking and adjusting device and a limit template. During the glue dispensing and bonding process, there is no need to repeatedly move the hydrogen light plate to the specified position, which greatly reduces manual intervention and waiting time. At the same time, the design of the pressure-maintaining limiter allows multiple hydrogen light plates and air plates to enter the pressure-maintaining state continuously and quickly, avoiding the problem that the early placed plates miss the best pressure-maintaining time due to waiting for subsequent plates, thereby significantly improving production efficiency and optimizing the pressure-maintaining effect.

[0018] 2. The pressure-maintaining and ejecting device in the present invention can adjust its position according to the number of graphite plates and separation protection plates entering, ensuring that each layer of graphite plates can be evenly pressure-maintained. This continuous pressure-maintaining effect helps the glue to obtain sufficient pressure and time in the initial stage of curing, avoiding the problem of uneven glue curing, thereby improving the tightness and durability of the glue point bonding. In addition, the use of the separation protection plate effectively avoids the mutual pressure of multiple graphite plates during the pressure-maintaining process, reduces the occurrence of outer wall wear, and further improves product quality.

[0019] 3. The present invention realizes the precise placement and dispensing of hydrogen light panels and air panels through the coordinated use of dispensing robots and dispensing robots. The entire bonding process is highly automated, reducing the need for manual operation. At the same time, the design of the continuous pressure-maintaining bonding table allows the panels to enter the pressure-maintaining state continuously and quickly, and the pressure-maintaining process can be completed without manual intervention. This not only reduces labor costs, but also improves the stability and reliability of the production process. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a three-dimensional schematic diagram of a hydrogen fuel cell electrode plate dispensing and bonding device with a continuous pressure-maintaining function according to the present invention. Figure 1 .

[0021] Figure 2 This is a three-dimensional schematic diagram of a hydrogen fuel cell electrode plate dispensing and bonding device with a continuous pressure-maintaining function according to the present invention. Figure 2 .

[0022] Figure 3 yes Figure 2 A partial enlarged view of point A in the middle.

[0023] Figure 4 It is a three-dimensional schematic diagram of a limiting template in a hydrogen fuel cell electrode plate dispensing and bonding device with a continuous pressure-maintaining function according to the present invention.

[0024] Figure 5 It is a three-dimensional schematic diagram of a pressure-maintaining limiter in a hydrogen fuel cell electrode plate dispensing and bonding device with a continuous pressure-maintaining function according to the present invention.

[0025] Figure 6 It is a planar sectional stereoscopic diagram of a pressure-maintaining limiter in a hydrogen fuel cell electrode plate dispensing and bonding device with a continuous pressure-maintaining function according to the present invention.

[0026] Figure 7 It is a three-dimensional schematic diagram of a limit clamp joint in a hydrogen fuel cell electrode plate dispensing and bonding device with a continuous pressure maintaining function according to the present invention.

[0027] Figure 8The present invention is a three-dimensional schematic diagram of a lifting and pushing device and a pressure-maintaining pushing device in a hydrogen fuel cell electrode plate dispensing and bonding device with a continuous pressure-maintaining function. Figure 1 .

[0028] Fig. 9 The present invention is a three-dimensional schematic diagram of a lifting and pushing device and a pressure-maintaining pushing device in a hydrogen fuel cell electrode plate dispensing and bonding device with a continuous pressure-maintaining function. Figure 2 .

[0029] Fig.10 It is a three-dimensional schematic diagram of a protective plate placement device in a hydrogen fuel cell electrode plate dispensing and bonding device with a continuous pressure maintaining function according to the present invention.

[0030] Fig.11 It is a planar sectional stereoscopic diagram of the working states of an unlocking and adjusting device and a limit card joint in a hydrogen fuel cell electrode plate dispensing and bonding device with a continuous pressure maintaining function according to the present invention.

[0031] The numbers in the figure are:

[0032] 1. Limit template; 11. Limit placement opening; 111. Limit card strip; 12. Docking groove; 13. Sheet material placement opening; 2. Linear conveyor; 3. Pressure-maintaining limiter; 31. Pressure-maintaining base; 311. Plane push plate; 3111. First guide column; 3112. Positioning docking hole; 312. First push spring; 313. First insertion hole; 32. Right-angle guide plate; 33. Vertical mounting plate; 34. Limit card joint; 341. Mounting guide rail; 342. Movable mounting block; 3421. Unlocking groove; 3422. First unlocking bevel; 343. Movable card block; 3431. Support plane; 3432. Extrusion bevel; 344. Reset spring; 4. Unlocking Adjusting device; 41. Rotating mounting shaft; 42. Rotating drive; 43. Rotating unlocking hook; 44. Second unlocking bevel; 5. Lifting and ejecting device; 51. Mounting base plate; 52. First lifting and ejecting plate; 53. Second guide column; 54. Docking guide block; 55. Second through hole; 56. First linear drive; 57. Second linear drive; 58. Lifting and ejecting frame; 6. Pressure-maintaining and ejecting device; 61. Ball screw slide; 62. Second lifting and ejecting plate; 63. Inductive pushing assembly; 631. Vertical push plate; 632. Telescopic resistance block; 7. Protection plate placement device; 71. Limiting storage rail; 72. Pushing conveyor; 8. Partitioning protection plate; 9. Graphite 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] See also Figures 1 to 11As shown, a hydrogen fuel cell electrode plate dispensing and laminating device with a continuous pressure-maintaining function comprises a continuous pressure-maintaining laminating platform arranged beside a dispensing robot and a material discharge robot, and the continuous pressure-maintaining laminating platform comprises a limiting template 1, a linear conveyor 2, a pressure-maintaining limiting device 3, an unlocking adjustment device 4, a lifting and ejecting device 5, a pressure-maintaining pushing device 6 and a protection plate placing device 7; the limiting template 1 is horizontally installed on a frame, and a limiting discharge area is provided on the limiting template 1; the linear conveyor 2 is installed below the limiting template 1; a plurality of pressure-maintaining limiting devices 3 are provided and distributed on the linear conveyor 2, and the pressure-maintaining limiting devices 3 are arranged on the linear conveyor 2. A plurality of limit card joints 34 are provided on the top of the pressure limiter 3; the lifting and pushing device 5 is arranged directly below the limit template 1, the lifting and pushing device 5 is fixedly connected to the bottom of the linear conveyor 2, and the working end of the lifting and pushing device 5 extends vertically upward; the pressure-maintaining pushing device 6 is installed below the lifting and pushing device 5, and the working end of the pressure-maintaining pushing device 6 extends vertically upward; a plurality of unlocking adjustment devices 4 are provided, which are distributed below the limit template 1, and the unlocking ends of the unlocking adjustment devices 4 correspond one by one to the limit card joints 34; the protection plate placement device 7 is arranged on the side of the limit template 1.

[0035] Install the preset limiting template 1 horizontally on the frame. Then, stack the partition protection plates 8 neatly inside the protection plate placement device 7 for subsequent use. The linear conveyor 2 starts to operate and transports the empty pressure-maintaining limiting device 3 to the top of the lifting and pushing device 5. The pressure-maintaining limiting device 3 is used to carry and store the hydrogen light plate and the air plate under pressure. The lifting and pushing device 5 is started to push the pressure-maintaining limiting device 3 upward until the limiting card joint 34 of the pressure-maintaining limiting device 3 is tightly in contact with the bottom of the limiting template 1. The stability and accuracy of the pressure-maintaining limiting device 3 in subsequent operations are ensured. Then, the pressure-maintaining pushing device 6 starts to work, and the working end of the pressure-maintaining pushing device 6 moves vertically upward, passing through the lifting and pushing device 5 and the pressure-maintaining limiting device 3 in turn. The pressure-maintaining pushing device 6 provides a continuous pressure-maintaining effect for the subsequent graphite plate 9 formed by bonding the hydrogen light plate and the air plate.

[0036] During the glue dispensing and laminating process, the protective plate placing device 7 pre-places the partition protective plate 8 in the limited discharge area of ​​the limited template 1. The bottom of the partition protective plate 8 contacts the limited clamp joint 34, and then the discharge robot accurately places the hydrogen light board in the limited discharge area of ​​the limited template 1, and closely fits the partition protective plate 8. The glue dispensing robot then performs glue dispensing on the hydrogen light board.

[0037] After the dispensing is completed, the unloading robot places the air plate on top of the hydrogen plate so that the two are attached to each other to form a graphite plate 9. At this time, the unlocking and adjusting device 4 performs preliminary unlocking and adjustment on the limit clamp joint 34, so that the unloading robot can press down the graphite plate 9. During the synchronous downward pressing process of the graphite plate 9 and the separation protection plate 8, the limit clamp joint 34 after preliminary adjustment will be squeezed to shrink and move, ensuring that the graphite plate 9 and the separation protection plate 8 can smoothly descend into the interior of the pressure-maintaining limiter 3.

[0038] When the graphite plate 9 and the partition protection plate 8 completely enter the pressure-maintaining limiter 3, the limit clamp joint 34 is reset, and the unlocking adjustment device 4 is also reset. At this time, the unloading robot stops pressing, so that the graphite plate 9 and the partition protection plate 8 stay between the limit clamp joint 34 and the pressure-maintaining push-up device 6. The top of the graphite plate 9 is in close contact with the bottom of the limit clamp joint 34, and the pressure-maintaining push-up device 6 continues to push the graphite plate 9 and the partition protection plate 8 to provide an effective pressure-maintaining effect. The pressure-maintaining push-up device 6 will adjust the position according to the number of graphite plates 9 and the partition protection plate 8 entering, so that the top of the pressure-maintaining push-up device 6 is adjusted downward to the adaptable position, and the top of the pressure-maintaining push-up device 6 always maintains a suitable pushing force, ensuring that there is enough extrusion space inside the pressure-maintaining limiter 3, so that the graphite plates 9 and the partition protection plates 8 can be continuously stacked and placed, and at the same time, it is ensured that each layer of graphite plates 9 can be uniformly pressure-maintained. The above steps are repeated until the specified number of layers are stacked inside the pressure-maintaining limiter 3.

[0039] Finally, the pressure-maintaining push-up device 6 and the lifting and pushing-up device 5 are reset synchronously, so that the fully stacked pressure-maintaining limiters 3 are synchronously lowered onto the linear conveyor 2. The linear conveyor 2 transports them to the designated area for subsequent processing, and at the same time moves the unused pressure-maintaining limiters 3 to the lifting and pushing-up device 5, forming a continuous cycle of pressure-maintaining and laminating work flow. The use of the separation protection plate 8 can effectively avoid the occurrence of outer wall wear caused by the mutual pressure between multiple graphite plates 9 during pressure maintenance, thereby improving production quality and efficiency.

[0040] The dispensing robot and the material discharging robot are both existing technologies and will not be described in detail here.

[0041] See also Figures 1 to 4 As shown, a limiting placement opening 11 is provided at the center position of the limiting template 1, a limiting clamping strip 111 is provided on the inner wall of the limiting placement opening 11, a docking groove 12 corresponding to the pressure-maintaining limiting device 3 is provided at the bottom of the limiting template 1, and a sheet material placement opening 13 is provided on the side of the limiting template 1.

[0042] The limiting template 1 is installed horizontally on the frame, and a limiting placement opening 11 is designed at its center. The inner wall of the limiting placement opening 11 is equipped with elastic limiting clamping strips 111. The main function of these limiting clamping strips 111 is to limit and stabilize the positions of the air plate and the hydrogen light plate to ensure the position accuracy of the two during the bonding process. When the hydrogen light plate is placed in the limiting placement opening 11, the limiting clamping strips 111 will use their elastic properties to squeeze and clamp the hydrogen light plate, thereby preventing displacement in subsequent operations and ensuring the stability and accuracy of the bonding process.

[0043] In addition, the bottom of the limiting template 1 is designed with a docking groove 12 corresponding to the pressure-maintaining limiter 3. The stability of the limiting template 1 and the pressure-maintaining limiter 3 during the docking process is ensured to prevent the fitting error caused by unstable docking. The shape and size of the docking groove 12 match the bottom of the pressure-maintaining limiter 3, so that the two can fit closely during docking, ensuring the smooth progress of the fitting process.

[0044] A sheet material placement opening 13 is also provided on the side of the position limiting template 1, so as to facilitate the stable placement of the partition protection plate 8 in cooperation with the protection plate placement device 7. The partition protection plate 8 is accurately placed in the position limiting placement opening 11 through the sheet material placement opening 13.

[0045] See also Figures 1 to 5 As shown, the pressure-maintaining and limiting device 3 includes a pressure-maintaining base 31 , on which a plurality of right-angle guide plates 32 and a vertical mounting plate 33 are provided, and a limiting clamp joint 34 is fixedly installed on the top of the vertical mounting plate 33 .

[0046] The pressure-maintaining base 31 is the main structure for bearing and pushing the graphite plates 9, and its top is designed to have a certain elasticity, so that when the graphite plates 9 and the separation protection plates 8 are stacked on the pressure-maintaining base 31, a moderate pushing force can be generated, thereby ensuring that the graphite plates 9 are closely fitted to achieve a continuous pressure-maintaining effect.

[0047] The right-angle guide plate 32 is vertically mounted on the pressure-maintaining base 31, and the right-angle guide plate 32 effectively guides the corners of the graphite plate 9 into the pressure-maintaining limiter 3. The physical constraint of the right-angle guide plate 32 can ensure the stability and accuracy of the graphite plate 9 during the stacking process, and avoid displacement or tilting.

[0048] The vertical mounting plate 33 is used to support and fix the limiting clamp joint 34. When the graphite plates 9 and the partition protection plates 8 are stacked inside the pressure-maintaining limiter 3, the graphite plates 9 and the partition protection plates 8 will be limited between the pressure-maintaining base 31 and the limiting clamp joint 34. At this time, the limiting clamp joint 34 plays a role of fixing and limiting, preventing the graphite plates 9 and the partition protection plates 8 from moving or dislocating during the pressure-maintaining process. During the stacking process, as the graphite plates 9 and the partition protection plates 8 are added layer by layer, the elastic pushing force of the pressure-maintaining base 31 and the physical limiting of the limiting clamp joint 34 work together to keep the graphite plates 9 and the partition protection plates 8 in a tight fit. When the stacking reaches the specified number of layers, the entire stack of graphite plates 9 and the partition protection plates 8 are stably limited between the pressure-maintaining base 31 and the limiting clamp joint 34, thereby achieving effective pressure maintenance and limiting of the graphite plates 9 and the partition protection plates 8.

[0049] See also Figures 5 and 6 As shown, a plurality of positioning docking holes 3112 are provided at the bottom of the pressure-maintaining base 31, a planar push plate 311 is provided on the pressure-maintaining base 31, a first guide column 3111 is installed on the planar push plate 311, the first guide column 3111 is slidably connected to the pressure-maintaining base 31, a first pushing spring 312 is installed between the first guide column 3111 and the pressure-maintaining base 31, and a first through hole 313 is provided on both the pressure-maintaining base 31 and the planar push plate 311.

[0050] The bottom of the pressure-maintaining base 31 is designed with a plurality of positioning docking holes 3112, which cooperate with the lifting and pushing device 5 to ensure the stability of the pressure-maintaining limiter 3 during the lifting process. When the lifting and pushing device 5 is started and pushes upward, the pressure-maintaining base 31 is precisely docked with the lifting and pushing device 5 through the positioning docking holes 3112, thereby stably rising.

[0051] A flat push plate 311 is provided on the pressure-maintaining base 31, and the flat push plate 311, the first guide column 3111 and the first push spring 312 jointly realize an elastic push effect. The first guide column 3111 is slidably connected to the pressure-maintaining base 31, ensuring that the flat push plate 311 can move smoothly when subjected to pressure. The first push spring 312 is installed between the first guide column 3111 and the pressure-maintaining base 31 to provide elastic support for the flat push plate 311. When the graphite plates 9 and the partition protection plates 8 are stacked inside the pressure-maintaining limiter 3, the flat push plate 311 is subjected to pressure and moves downward, compressing the first push spring 312. At this time, the elastic force of the first push spring 312 and the push force of the flat push plate 311 work together to provide a moderate push force for the stacked graphite plates 9 and the partition protection plates 8, ensuring that they maintain a tight fit.

[0052] In addition, the pressure-maintaining base 31 and the flat push plate 311 are both provided with a first insertion hole 313, and the first insertion hole 313 is used to provide a position for the pressure-maintaining push-up device 6 to pass through. When the pressure-maintaining push-up device 6 is working, the working end of the pressure-maintaining push-up device 6 will pass through the first insertion hole 313, further pushing the graphite plate 9 and the separation protection plate 8 stacked inside the pressure-maintaining limiter 3, providing them with a continuous pressure-maintaining effect.

[0053] See also Figure 5 , Figure 6 , Figure 7 and Fig.11 As shown, the limit clamp joint 34 includes a mounting rail 341 horizontally mounted on the top of the vertical mounting plate 33, a movable mounting block 342 is slidably mounted inside the mounting rail 341, an unlocking groove 3421 is provided at the bottom of the movable mounting block 342, a first unlocking angle 3422 is provided inside the unlocking groove 3421, a return spring 344 is installed between the mounting rail 341 and the movable mounting block 342, a movable clamping block 343 is installed on the movable mounting block 342, a supporting plane 3431 is provided on the top of the movable clamping block 343, and an extrusion angle 3432 is provided on the side of the movable clamping block 343.

[0054] The mounting rail 341 is horizontally fixed on the vertical mounting plate 33 to guide the movable mounting block 342 to slide inside the rail 341. The movable mounting block 342 is connected to the mounting rail 341 via a return spring 344, which provides an outward thrust for the movable mounting block 342 to ensure that the movable block 343 remains in an outwardly extended state.

[0055] The bottom of the movable mounting block 342 is designed with an unlocking groove 3421, and the inside of the unlocking groove 3421 is provided with a first unlocking bevel 3422, so that the unlocking adjustment device 4 can collide with the first unlocking bevel 3422 of the movable mounting block 342 when needed, thereby changing the position of the movable mounting block 342. A movable clamping block 343 is installed on the movable mounting block 342, and a detachable connection method is adopted between the movable clamping block 343 and the movable mounting block 342 to ensure that the two can maintain a stable connection when needed, and at the same time facilitate maintenance and replacement. When the pressure-maintaining limiter 3 is docked with the bottom of the limit template 1, the movable clamping block 343 maintains a state of extending to the outside of the mounting guide rail 341 under the action of the reset spring 344. At this time, the support plane 3431 on the top of the movable clamping block 343 can effectively support the partition protection plate 8 placed on the limit template 1, ensuring that the partition protection plate 8 remains stable during the stacking process. Subsequently, the dispensing robot and the material discharging robot cooperate to perform the bonding operation of the hydrogen light plate and the air plate to obtain the graphite plate 9. When the graphite plate 9 and the partition protection plate 8 need to be pushed into the pressure-maintaining limiter 3, the unlocking adjustment device 4 will interfere with the first unlocking angle 3422 of the movable mounting block 342, so that the movable mounting block 342 drives the movable clamping block 343 to retract into the mounting guide rail 341. When the movable mounting block 342 retracts, the extrusion angle 3432 on its side will move to the edge of the partition protection plate 8.

[0056] At this time, the unloading robot pushes the graphite plate 9 and the partition protection plate 8 to perform a downward movement. The corners of the partition protection plate 8 will interfere with the extrusion bevel 3432 of the movable clamping block 343, further causing the movable clamping block 343 to shrink toward the inside of the mounting guide rail 341, thereby allowing the graphite plate 9 and the partition protection plate 8 to pass through the limiting clamping joint 34 and enter the inside of the pressure-maintaining limiter 3. Once the graphite plate 9 and the partition protection plate 8 completely enter the inside of the pressure-maintaining limiter 3, the unlocking adjustment device 4 will reset, and at the same time, the reset spring 344 will drive the movable mounting block 342 and the movable clamping block 343 to reset and move synchronously. After the movable clamping block 343 is reset, the bottom of the movable clamping block 343 will limit the graphite plate 9 and the partition protection plate 8 entering the inside of the pressure-maintaining limiter 3 to prevent them from rising, thereby achieving effective limiting and pressure maintenance of the graphite plate 9 and the partition protection plate 8.

[0057] See also Figure 1 , Figure 3 and Fig.11 As shown, the unlocking and adjusting device 4 includes a rotating mounting shaft 41 rotatably mounted on a frame, a plurality of rotating unlocking hooks 43 are provided on the rotating mounting shaft 41, a second unlocking angle 44 is provided at one end of the rotating unlocking hook 43 away from the rotating mounting shaft 41, and the unlocking and adjusting device 4 also includes a rotating driver 42 for driving the rotating mounting shaft 41 to rotate.

[0058] When the graphite plate 9 and the partition protection plate 8 need to be pushed into the pressure-maintaining limiter 3, the rotary driver 42 is activated to drive the rotary installation shaft 41 to rotate. As the rotary installation shaft 41 rotates, the multiple rotary unlocking hooks 43 rotate accordingly, and the second unlocking angle 44 on the rotary unlocking hook 43 conflicts with the first unlocking angle 3422 at the bottom of the movable installation block 342. Due to the cooperation of the second unlocking angle 44 and the first unlocking angle 3422, the movable installation block 342 is subjected to an inward thrust, thereby driving the movable clamping block 343 to retract into the inside of the installation guide rail 341.

[0059] This contraction action adjusts the original positions of the movable mounting block 342 and the movable clamping block 343, and the extrusion bevel 3432 on the side of the movable mounting block 342 moves to the edge of the partition protection plate 8, thereby providing the necessary conditions for the graphite plate 9 and the partition protection plate 8 to pass through the limit clamping joint 34 and enter the interior of the pressure-maintaining limiter 3.

[0060] See also Figure 2 , Figure 8 and Fig. 9 As shown, the lifting and pushing device 5 includes a mounting base plate 51 installed at the bottom of the linear conveyor 2, a first lifting push plate 52 is provided above the mounting base plate 51, a plurality of second guide columns 53 are installed on the first lifting push plate 52, the second guide columns 53 are slidably connected to the mounting base plate 51, a plurality of docking guide blocks 54 are provided on the top of the first lifting push plate 52, and second insertion holes 55 are provided on the mounting base plate 51 and the first lifting push plate 52. A first linear drive 56 is also installed on the mounting base plate 51, and the output end of the first linear drive 56 is connected to the first lifting push plate 52. A limited position blocking device is also installed on the mounting base plate 51, and the limited position blocking device includes a second linear drive 57 installed on the mounting base plate 51, and a lifting blocking frame 58 is installed on the output end of the second linear drive 57, and the lifting blocking frame 58 is slidably connected to the mounting base plate 51.

[0061] The first lifting push plate 52 is located above the mounting base plate 51 and is slidably connected to the mounting base plate 51 through a plurality of second guide pillars 53. The sliding connection of the second guide pillars 53 ensures the stability and guidance of the first lifting push plate 52 during the lifting process. The second guide pillars 53 not only play a supporting role, but also limit the movement trajectory of the first lifting push plate 52 to prevent it from deflecting or shaking.

[0062] The docking guide block 54 is arranged at the top of the first lifting push plate 52, and is used to cooperate with the positioning docking hole 3112 of the pressure-maintaining limiter 3. When the pressure-maintaining limiter 3 is transported by the linear conveyor 2 to the top of the first lifting push plate 52, the docking guide block 54 can be accurately inserted into the positioning docking hole 3112 of the pressure-maintaining limiter 3, thereby ensuring the stability and accuracy of the pressure-maintaining limiter 3 during the lifting process. The second insertion hole 55 is arranged on the mounting base plate 51 and the first lifting push plate 52, providing a position for the abutting end of the pressure-maintaining push device 6 to be inserted. In this way, when the pressure-maintaining push device 6 needs to pass through the lifting push device 5 to maintain pressure on the graphite plate 9 and the partition protection plate 8, the abutting end of the pressure-maintaining push device 6 can smoothly pass through the second insertion hole 55, contact with the graphite plate 9 and the partition protection plate 8 and apply pressure. The first linear drive 56 is installed on the mounting base plate 51, and its output end is connected to the first lifting push plate 52. By controlling the telescopic movement of the first linear drive 56 , the first lifting push plate 52 can be driven to perform lifting movement.

[0063] When the linear conveyor 2 transports the pressure-maintaining limiter 3, the lifting blocking frame 58 can effectively block the movement of the pressure-maintaining limiter 3, so as to ensure that the pressure-maintaining limiter 3 stays directly above the first lifting push plate 52. The lifting and lowering movement of the lifting blocking frame 58 is controlled by the second linear drive 57. When the second linear drive 57 controls the lifting and lowering blocking frame 58, the blocking of the pressure-maintaining limiter 3 will be released.

[0064] See also Figure 2 , Figure 8 and Fig. 9 As shown, the pressure-maintaining pushing device 6 includes a ball screw slide 61 fixedly mounted on the mounting base plate 51, a second lifting push plate 62 is mounted on the movable end of the ball screw slide 61, an induction pushing assembly 63 is mounted on the second lifting push plate 62, and the top of the induction pushing assembly 63 extends upward through the second through hole 55.

[0065] When the ball screw slide 61 receives the control signal, it will accurately drive the second lifting push plate 62 to perform stable lifting and lowering movements.

[0066] When the second lifting and pushing plate 62 is lifted, it will drive the inductive pushing assembly 63 to move upward. At this time, the second insertion hole 55 and the first insertion hole 313 provide a space for the inductive pushing assembly 63 to pass through, ensuring that the inductive pushing assembly 63 can smoothly pass through the lifting and pushing device 5 and the pressure-maintaining limiter 3, so as to reach the bottom of the graphite plate 9 and the partition protection plate 8.

[0067] The top of the inductive pushing component 63 is designed to push the graphite plate 9 and the partition protection plate 8. When the graphite plate 9 and the partition protection plate 8 are placed in the pressure-maintaining limiter 3, the inductive pushing component 63 will immediately press them to ensure that they are tightly fitted and maintain a certain pressure.

[0068] In addition, the top of the inductive pushing component 63 also has a pressure detection function. By detecting the pressure change during the pressing process, the inductive pushing component 63 can determine the number of stacked layers of the graphite plate 9 and the partition protection plate 8. When the number of stacked layers increases, the required pressing force will also change accordingly. The ball screw slide 61 will dynamically adjust the position of the inductive pushing component 63 according to the pressure information fed back by the inductive pushing component 63, so that the inductive pushing component 63 is adjusted downward to the adaptive position. The inductive pushing component 63 always maintains a suitable pushing force to ensure that there is enough extrusion space inside the pressure-holding limiter 3, so that the graphite plate 9 and the partition protection plate 8 can be continuously stacked and placed, while also ensuring that each layer of graphite plate 9 and partition protection plate 8 can obtain a uniform pressure-holding effect.

[0069] This process will continue until the specified number of layers are stacked inside the pressure-maintaining limiter 3. At this time, the inductive pushing assembly 63 will be reset to the initial position, waiting for the start of the next round of pressure-maintaining operation.

[0070] See also Figure 2 , Figure 8 and Fig. 9 As shown, the inductive pushing assembly 63 includes a plurality of vertical push plates 631 installed on the second lifting push plate 62, a telescopic resistance block 632 is slidably installed on the top of the vertical push plate 631, a second pushing spring is installed between the telescopic resistance block 632 and the vertical push plate 631, and a pressure sensor is also installed on the top of the telescopic resistance block 632.

[0071] The telescopic resistance block 632 is connected to the vertical push plate 631 through a second push spring, which provides elastic push force for the telescopic resistance block 632. At the same time, a pressure sensor is also installed on the top of the telescopic resistance block 632 to detect the pressure change of the second push spring in real time.

[0072] During the pressure holding process, when the ball screw slide 61 drives the second lifting push plate 62 to rise, the vertical push plate 631 and the telescopic resistance block 632 thereon will also rise. At this time, the telescopic resistance block 632 will pass through the second insertion hole 55 and the first insertion hole 313 to reach the bottom of the graphite plate 9 and the partition protection plate 8.

[0073] As the number of stacked layers increases, the reaction force generated by the graphite plate 9 and the partition protection plate 8 on the telescopic resistance block 632 will gradually increase. This reaction force will be transmitted to the second push spring through the telescopic resistance block 632, causing the second push spring to deform. At the same time, the pressure sensor will detect the pressure changes of the second push spring in real time. According to the received pressure information, the number of stacked layers of the graphite plate 9 and the partition protection plate 8 and the required pressing force can be determined. Then, the position of the ball screw slide 61 will be adjusted so that the inductive push assembly 63 can always be maintained in a suitable pressing position to ensure that each layer of graphite plate 9 and partition protection plate 8 can obtain a uniform pressure-maintaining effect.

[0074] See also Figure 1 and Fig.10 As shown, the protection plate placement device 7 includes a push conveyor 72 arranged beside the limiting template 1, the discharge end of the push conveyor 72 is connected to the plate placement opening 13 of the limiting template 1, and a limiting storage rail 71 is installed on the push conveyor 72.

[0075] The discharge end of the push conveyor 72 is precisely docked with the plate placement opening 13 of the limiting template 1 to ensure the stable transmission of the partition protection plate 8. A limiting storage rail 71 is installed on the push conveyor 72. The main function of the limiting storage rail 71 is to limit the stacking and storage of multiple layers of partition protection plates 8 to ensure the stability and accuracy of the stacking.

[0076] During the stacking process, the bottom partition protection plate 8 is in close contact with the conveyor belt of the push conveyor 72, and the friction of the conveyor belt keeps the position stable. When the production process requires the placement of the partition protection plate 8 in the limit placement port 11 of the limit template 1, the push conveyor 72 is started and begins to stably convey the partition protection plate 8. As the push conveyor 72 runs, the bottom partition protection plate 8 is driven and moves smoothly along the limit storage rail 71. When the partition protection plate 8 reaches the discharge end of the push conveyor 72, since the discharge end is docked with the sheet material placement port 13 of the limit template 1, the partition protection plate 8 can smoothly enter the interior of the limit template 1 from the sheet material placement port 13. After passing through the sheet material placement port 13, the partition protection plate 8 will continue to move forward until it enters the limit placement port 11.

[0077] The protection plate placement device 7 can efficiently and stably transport the partition protection plate 8 to the limiting placement opening 11 of the limiting template 1, thereby improving production efficiency.

[0078] Specific working principle:

[0079] During the glue dispensing and laminating process, the protective plate placing device 7 pre-places the partition protective plate 8 in the limited discharge area of ​​the limited template 1. The bottom of the partition protective plate 8 contacts the limited clamp joint 34. Subsequently, the discharge robot accurately places the hydrogen light board in the limited discharge area of ​​the limited template 1, and closely fits the partition protective plate 8. The glue dispensing robot then performs glue dispensing on the hydrogen light board.

[0080] After the dispensing is completed, the unloading robot places the air plate on top of the hydrogen plate, so that the two are attached to each other to form a graphite plate 9. At this time, the unlocking adjustment device 4 makes a preliminary adjustment to the limit clamp joint 34, so that the unloading robot can press the graphite plate 9 downward. During the synchronous downward pressing process of the graphite plate 9 and the separation protection plate 8, the limit clamp joint 34 after the preliminary adjustment will be squeezed to make it shrink and move. This ensures that the graphite plate 9 and the separation protection plate 8 can smoothly descend into the interior of the pressure-maintaining limiter 3.

[0081] When the graphite plate 9 and the partition protection plate 8 completely enter the pressure-maintaining limiter 3, the limit clamp joint 34 is reset, and the unlocking adjustment device 4 is also reset. At this time, the unloading robot stops pressing, so that the graphite plate 9 and the partition protection plate 8 stay between the limit clamp joint 34 and the pressure-maintaining push-up device 6. The top of the graphite plate 9 is in close contact with the bottom of the limit clamp joint 34, and the pressure-maintaining push-up device 6 continues to push the graphite plate 9 and the partition protection plate 8 to provide an effective pressure-maintaining effect. The pressure-maintaining push-up device 6 will adjust the position according to the number of graphite plates 9 and the partition protection plate 8 entering, so that the top of the pressure-maintaining push-up device 6 is adjusted downward to the adaptable position, and the top of the pressure-maintaining push-up device 6 always maintains a suitable pushing force, ensuring that there is enough extrusion space inside the pressure-maintaining limiter 3, so that the graphite plates 9 and the partition protection plates 8 can be continuously stacked and placed, and at the same time, it is ensured that each layer of graphite plates 9 can be uniformly pressure-maintained. The above steps are repeated until the specified number of layers are stacked inside the pressure-maintaining limiter 3.

[0082] Finally, the pressure-maintaining push-up device 6 and the lifting and pushing-up device 5 are reset synchronously, so that the fully stacked pressure-maintaining limiters 3 are synchronously lowered onto the linear conveyor 2. The linear conveyor 2 transports them to the designated area for subsequent processing, and at the same time moves the unused pressure-maintaining limiters 3 to the lifting and pushing-up device 5, forming a continuous cycle of pressure-maintaining and laminating work flow. The use of the separation protection plate 8 can effectively avoid the occurrence of outer wall wear caused by the mutual pressure between multiple graphite plates 9 during pressure maintenance, thereby improving production quality and efficiency.

[0083] 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 scope of the present invention. It should be pointed out that, for those 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. A hydrogen fuel cell electrode plate dispensing and laminating device with a continuous pressure-maintaining function, comprising a continuous pressure-maintaining laminating table arranged beside a dispensing robot and a material discharging robot, characterized in that: The continuous pressure-maintaining laminating table includes a limiting template, a linear conveyor, a pressure-maintaining limiting device, an unlocking and adjusting device, a lifting and ejecting device, a pressure-maintaining ejecting device and a protective plate placing device; The limit template is installed horizontally on the frame, and a limit material discharge area is provided on the limit template; The linear conveyor is installed below the limit template; A plurality of pressure-maintaining limiters are provided and distributed on the linear conveyor, and a plurality of limit clamping joints are provided on the top of the pressure-maintaining limiter; The lifting and pushing device is arranged directly below the limiting template, the lifting and pushing device is fixedly connected to the bottom of the linear conveyor, and the working end of the lifting and pushing device extends vertically upward; The pressure-maintaining ejecting device is installed below the lifting ejecting device, and the working end of the pressure-maintaining ejecting device extends vertically upward; There are multiple unlocking and adjusting devices, which are distributed below the limiting template, and the unlocking ends of the unlocking and adjusting devices correspond to the limiting card joints one by one; The protection plate placement device is arranged beside the limiting template; The lifting and pushing device includes a mounting base plate installed at the bottom of the linear conveyor, a first lifting and pushing plate is provided above the mounting base plate, a plurality of second guide columns are installed on the first lifting and pushing plate, the second guide columns are slidably connected to the mounting base plate, a plurality of docking guide blocks are provided on the top of the first lifting and pushing plate, the mounting base plate and the first lifting and pushing plate are both provided with second insertion holes, a first linear drive is also installed on the mounting base plate, an output end of the first linear drive is connected to the first lifting and pushing plate, a limited position blocking device is also installed on the mounting base plate, the limited position blocking device includes a second linear drive installed on the mounting base plate, a lifting and blocking frame is installed on the output end of the second linear drive, and the lifting and blocking frame is slidably connected to the mounting base plate; The pressure-maintaining push-up device comprises a ball screw slide fixedly mounted on the mounting bottom plate, a second lifting push plate is mounted on the movable end of the ball screw slide, an inductive push assembly is mounted on the second lifting push plate, and the top of the inductive push assembly extends upward through the second insertion hole; The inductive push assembly includes a plurality of vertical push plates mounted on the second lifting push plate, a telescopic resistance block is slidably mounted on the top of the vertical push plate, a second push spring is mounted between the telescopic resistance block and the vertical push plate, and a pressure sensor is also mounted on the top of the telescopic resistance block; The pressure-maintaining limiter comprises a pressure-maintaining base, on which a plurality of right-angle guide plates and a vertical mounting plate are arranged, and a limit card joint is fixedly mounted on the top of the vertical mounting plate; The limit clamp joint comprises a mounting rail horizontally mounted on the top of the vertical mounting plate, a movable mounting block is slidably mounted inside the mounting rail, an unlocking groove is provided at the bottom of the movable mounting block, a first unlocking angle is provided inside the unlocking groove, a return spring is installed between the mounting rail and the movable mounting block, a movable clamping block is installed on the movable mounting block, a supporting plane is provided on the top of the movable clamping block, and an extrusion angle is provided on the side of the movable clamping block; The unlocking and adjusting device comprises a rotating mounting shaft rotatably mounted on the frame, a plurality of rotating unlocking hooks are arranged on the rotating mounting shaft, and a second unlocking angle is arranged at one end of the rotating unlocking hook away from the rotating mounting shaft.

2. A hydrogen fuel cell electrode plate dispensing and bonding device with continuous pressure-maintaining function according to claim 1, characterized in that: A limiting placement opening is provided at the center of the limiting template, a limiting clamping strip is provided on the inner wall of the limiting placement opening, a docking groove corresponding to the pressure-maintaining limiting device is provided at the bottom of the limiting template, and a sheet material placement opening is provided on the side of the limiting template.

3. The hydrogen fuel cell electrode plate dispensing and bonding device with continuous pressure-maintaining function according to claim 1, characterized in that: A plurality of positioning docking holes are provided at the bottom of the pressure-maintaining base, a planar push plate is provided on the pressure-maintaining base, a first guide column is installed on the planar push plate, the first guide column is slidably connected to the pressure-maintaining base, a first pushing spring is installed between the first guide column and the pressure-maintaining base, and a first through hole is provided on both the pressure-maintaining base and the planar push plate.

4. The hydrogen fuel cell electrode plate dispensing and bonding device with continuous pressure-maintaining function according to claim 1, characterized in that: The unlocking and adjusting device also includes a rotary drive for driving the rotary mounting shaft to rotate.

5. The hydrogen fuel cell electrode plate dispensing and bonding device with continuous pressure-maintaining function according to claim 2, characterized in that: The protection plate placing device comprises a push conveyor arranged beside the limiting template, the discharging end of the push conveyor is connected with the plate placing opening of the limiting template, and a limiting storage rail is installed on the push conveyor.

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