An automatic loading, unloading, and marking device for graphite bipolar plates

Abstract

This invention relates to an automatic loading, unloading, and marking device for graphite bipolar plates, comprising a cabinet, a scanning mechanism, and a marking mechanism. The cabinet has a loading bin and a unloading bin at each end. A conveying mechanism is located above the loading bin, and a lifting mechanism is located between the conveying mechanism and the unloading bin. A dropping mechanism is located at the tail end of the lifting mechanism. The conveying mechanism includes a feeding component, a transfer component, and a guiding component. The lifting mechanism includes a carrying component and a limiting component. The feeding component moves the graphite bipolar plate at the top of the loading bin to the transfer component. The transfer component moves the graphite bipolar plate to the carrying component, and during the movement, it works with the guiding component to raise and lower the carrying component. The lowering of the carrying component causes the limiting component to rise and limit the graphite bipolar plate. The dropping mechanism transfers the marked graphite bipolar plate to the unloading bin. This invention solves the problems of existing equipment where robotic arms cannot effectively load materials, resulting in loose adhesion and drops, while manual loading and unloading is time-consuming, labor-intensive, inefficient, and lacks precise positioning.

Description

Technical Field

[0001] This invention relates to the technical field of graphite bipolar plate marking equipment, specifically to an automatic loading and unloading marking equipment for graphite bipolar plates. Background Technology

[0002] After production, graphite bipolar plates need to be marked on their surface using marking equipment to imprint necessary information. Current technology typically uses laser marking machines, but because the surface of graphite bipolar plates is relatively rough, the robotic arm on the laser marking machine is prone to poor adhesion and dropping during loading and unloading. Therefore, manual placement of the graphite bipolar plates onto the laser marking machine for marking is often required, followed by removal and replacement. This process is not only time-consuming and labor-intensive, resulting in low processing efficiency, but also makes it difficult to ensure precise positioning of the graphite bipolar plates after loading, affecting the marking quality. Summary of the Invention

[0003] The purpose of this invention is to address the shortcomings of existing technologies by providing an automatic loading, unloading, and marking device for graphite bipolar plates. The device includes a cabinet and a barcode scanning mechanism located in the middle of the cabinet. A marking mechanism is located at the tail end of the barcode scanning mechanism. A loading bin and a unloading bin are located at opposite ends of the cabinet. A conveying mechanism is located above the loading bin. A lifting mechanism is located between the conveying mechanism and the unloading bin. A material dropping mechanism is located at the tail end of the lifting mechanism. The conveying mechanism includes a material feeding component and a transfer component. A guide component is located on one side of the transfer component. The lifting mechanism includes a load-bearing component and a limiting component. The graphite bipolar plate is pulled onto the carrier component by the handle 'a' in the transfer component. During the movement, the carrier component descends, causing the limiting component to rise and limit the graphite bipolar plate. This not only ensures smooth feeding but also achieves precise positioning of the graphite bipolar plate. After the marking and scanning mechanisms mark and scan the graphite bipolar plate in the limiting position, the unloading mechanism transfers the graphite bipolar plate to the unloading bin for collection. This process has strong continuity and solves the problems of unstable feeding methods, time-consuming and labor-intensive manual loading and unloading, low processing efficiency, and difficulty in ensuring marking quality in existing technologies.

[0004] The technical solution of the present invention is as follows:

[0005] An automatic loading, unloading, and marking device for graphite bipolar plates includes a cabinet and a barcode scanning mechanism located in the middle of the cabinet. A marking mechanism is located at the tail end of the barcode scanning mechanism. A loading bin and a unloading bin are respectively located at both ends of the cabinet. A conveying mechanism is located above the loading bin. A lifting mechanism is located between the conveying mechanism and the unloading bin. A material dropping mechanism is located at the tail end of the lifting mechanism. The conveying mechanism includes a material feeding component located above the loading bin and a transfer component located at the tail end of the material feeding component. A guide component is located on one side of the transfer component. The lifting mechanism includes... The marking mechanism includes a support component and a limiting component. The feeding component moves the graphite bipolar plate located at the top of the feeding bin to the top of the transfer component. The transfer component is used to transfer the graphite bipolar plate to the support component and, during the movement, cooperates with the guide component to raise and lower the support component. During the descent of the support component, the limiting component is raised to limit the graphite bipolar plate. The marking mechanism and the scanning mechanism mark and scan the graphite bipolar plate in the limiting position in turn. The unloading mechanism is used to transfer the marked graphite bipolar plate to the unloading bin for collection.

[0006] As a preferred embodiment, the cabinet has a receiving cavity, the bottom of the receiving cavity has a sliding groove a, the inner wall of the receiving cavity has a sliding groove b, the top of the receiving cavity is fixedly provided with a processing platform, the processing platform has through holes a and b, and baffles are provided on both sides of the top of the receiving cavity.

[0007] As a preferred embodiment, the material feeding assembly includes a mounting base fixedly mounted on the cabinet, a servo motor a, and a drive wheel and a driven wheel driven by the servo motor a, wherein the drive wheel is connected to the driven wheel via a belt.

[0008] As a preferred embodiment, the transfer assembly includes rollers a rotatably disposed on both sides of the inner wall of the receiving cavity, a servo motor b fixedly disposed at the bottom of the receiving cavity, a lead screw driven by the servo motor b, and a fixed seat driven by the lead screw. A telescopic sleeve a is fixedly disposed on the top of the fixed seat, a telescopic rod is telescopically disposed inside the telescopic sleeve a, a handle a is fixedly disposed on the top of the telescopic rod, the bottom of the telescopic rod is connected to the telescopic sleeve a through a return spring a, a connector is fixedly disposed on one side of the handle a, a rotating wheel is rotatably disposed on the bottom of the connector, a support rod is fixedly connected to the top of the connector, a protrusion is fixedly connected to the top of the support rod, and a slider a is disposed at the bottom of the fixed seat corresponding to the sliding groove a.

[0009] As a preferred embodiment, a connecting arm is also provided on one side of the fixed base, and a pressing rod is fixedly provided at the bottom of the connecting arm.

[0010] As a preferred embodiment, the guide assembly includes a lower guide rail fixedly disposed within the receiving cavity and an upper guide rail fixedly connected to the top of the lower guide rail. The lower guide rail is provided with a smooth section and a lifting section. A swing member is hinged to the front section of the upper guide rail, and a torsion spring is connected between the swing member and the upper guide rail.

[0011] As a preferred embodiment, the bearing assembly includes a rotating seat a and a rotating seat b symmetrically arranged below the processing platform. Rollers b are rotatably mounted on both rotating seats a and b. Slider b is provided on the back of both rotating seats a and b corresponding to the sliding groove b. A rack a is fixedly mounted at both ends of rotating seat a, and a wedge block is fixedly mounted at the tail end of rotating seat b. Rotating seats a and b are fixedly connected by a fixing rod, and a return spring b is provided at the bottom of both rotating seats a and b.

[0012] As a preferred embodiment, the limiting assembly includes telescopic sleeves b and c symmetrically arranged below both ends of the processing platform, as well as rotating seats c and d. Limiting elements a and b are telescopically arranged inside the telescopic sleeves b and c, respectively. Both limiting elements a and b cooperate with through holes b. Gears are provided on both rotating seats c and d. Racks b are provided on both limiting elements a and b. The two sides of the gears mesh with racks a and b, respectively. The bottoms of limiting elements a and b are connected to the telescopic sleeves b and c, respectively, through a return spring c.

[0013] As a preferred embodiment, the material feeding mechanism includes a servo cylinder fixedly installed at the tail end of the feeding bin, and a handle b is fixedly connected to the front end of the servo cylinder.

[0014] As another preferred embodiment, both the loading hopper and the unloading hopper are equipped with a support plate, and a return spring d is fixedly connected to the bottom of the support plate.

[0015] The beneficial effects of this invention are as follows:

[0016] 1. This invention includes a transfer component. The feeding component, through the cooperation of a drive wheel and a driven wheel, moves the graphite bipolar plate at the top of the feeding bin backward a certain distance, placing it above the transfer component. When the handle a in the transfer component resets along the lower guide rail, it lifts the graphite bipolar plate via the rising section on the lower guide rail and engages it in the opening on one side of the graphite bipolar plate. As it continues to be transported backward, it drives the graphite bipolar plate to the carrier plate for subsequent marking. The feeding method using handle a achieves stable feeding of the graphite bipolar plate, solving the problems of existing laser marking machines where robotic arms cannot effectively feed the plate, and the rough surface of the graphite bipolar plate easily leads to poor adhesion and drop. Manual feeding is time-consuming, labor-intensive, and has low processing efficiency. When the transfer component resets, it drives the carrier component to rise, lifting the graphite bipolar plate from the processing platform, facilitating the unloading mechanism to transfer and unload the graphite bipolar plate. The linkage effect between the components is good.

[0017] 2. This invention incorporates a limiting component. During the backward movement of the fixed seat in the transfer component, it causes the rotating seats a and b in the bearing component to descend. As rotating seat a descends, it is driven by rack a in conjunction with gears to move the limiting components a and b in the limiting component in the opposite direction, thus achieving upward movement. This limits and fixes the front and rear ends of the graphite bipolar plate transferred to the processing platform, ensuring precise positioning of the graphite bipolar plate and maintaining stability during processing. This prevents deviations that could affect marking quality, resulting in more accurate marking. This invention solves the problems of existing technologies where manual feeding cannot guarantee precise positioning of the graphite bipolar plate, and the lack of effective fixation during processing affects marking quality.

[0018] 3. This invention is equipped with a material unloading mechanism. The servo cylinder in the unloading mechanism drives the handle b to transfer the marked and scanned graphite bipolar plate to the unloading bin. After the carrying component descends and places the graphite bipolar plate on the processing platform, the servo cylinder drives the handle b to reset. After the handle b is reset, its position is above the working platform. When the carrying component rises and resets under the drive of the transfer component, it lifts the graphite bipolar plate from the processing platform, so that the handle b can pass through the opening on one side of the graphite bipolar plate and hook into the graphite bipolar plate. This allows the handle b to accurately pull the graphite bipolar plate to complete the unloading. The unloading method is stable and fast, with a high degree of automation, which solves the problems of slow unloading speed and poor processing continuity caused by manual handling in the prior art.

[0019] In summary, this invention has the advantages of stable and efficient loading and unloading, accurate positioning without deviation, good processing continuity, high degree of automation, low labor intensity, and good linkage effect between components, making it suitable for the field of graphite bipolar plate marking equipment technology. Attached Figure Description

[0020] The invention will be further described below with reference to the accompanying drawings:

[0021] Figure 1 This is a structural schematic diagram of the automatic loading, unloading, and marking equipment for graphite bipolar plates.

[0022] Figure 2 for Figure 1 Enlarged view of point A;

[0023] Figure 3 This is a structural diagram of the server rack;

[0024] Figure 4 This is a schematic diagram showing the positional structure of the support component and the limiting component;

[0025] Figure 5 for Figure 4 Enlarged view of point B;

[0026] Figure 6 This is a schematic diagram illustrating the state of the supporting component as it descends during the movement of the transfer component.

[0027] Figure 7 A schematic diagram showing the state in which the protrusion abuts against the swinging component when the fixed base and handle a are reset, causing the swinging component to swing upward.

[0028] Figure 8 This is a schematic diagram showing the state of the marking mechanism marking the graphite bipolar plate in the upper limit position of the processing platform.

[0029] In the diagram: 1. Cabinet; 2. Scanning mechanism; 3. Marking mechanism; 4. Loading bin; 5. Unloading bin; 6. Conveying mechanism; 7. Lifting mechanism; 8. Unloading mechanism; 9. Graphite bipolar plate; 11. Receiving cavity; 12. Slide a; 13. Slide b; 14. Processing platform; 15. Through hole a; 16. Through hole b; 17. Baffle; 41. Bearing plate; 42. Return spring d; 61. Material feeding assembly; 62. Transfer assembly; 63. Guide assembly; 610. Mounting base; 611. Servo motor a; 612. Drive wheel; 613. Driven wheel; 614. Belt; 620. Roller a; 621. Servo motor b; 622. Lead screw; 623. Fixed base; 624. Telescopic sleeve a; 625. Telescopic rod; 626. Handle a; 627. Return spring a; 628. Connector; 629. Rotating wheel. 29. Support rod 6210, protrusion 6211, slider a6212, connecting arm 6213, pressing rod 6214, lower guide rail 630, upper guide rail 631, smooth section 632, lifting section 633, swing component 634, torsion spring 635, bearing assembly 71, limiting assembly 72, rotating seat a710, rotating seat b711, roller b712, slider b713, rack a714, inclined block 715, fixed rod 716, return spring b717, telescopic sleeve b720, telescopic sleeve c721, rotating seat c722, rotating seat d723, limiting component a724, limiting component b725, gear 726, rack b727, return spring c728, servo cylinder 81, handle b82. Detailed Implementation

[0030] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings.

[0031] Example 1

[0032] like Figures 1 to 8As shown, an automatic loading, unloading, and marking device for graphite bipolar plates includes a cabinet 1 and a barcode scanning mechanism 2 located in the middle of the cabinet 1. A marking mechanism 3 is located at the tail end of the barcode scanning mechanism 2. A loading bin 4 and a unloading bin 5 are respectively located at both ends of the cabinet 1. A conveying mechanism 6 is located above the loading bin 4. A lifting mechanism 7 is located between the conveying mechanism 6 and the unloading bin 5. A dropping mechanism 8 is located at the tail end of the lifting mechanism 7. The conveying mechanism 6 includes a feeding component 61 located above the loading bin 4 and a transfer component 62 located at the tail end of the feeding component 61. A guide component 63 is located on one side of the transfer component 62. The lifting mechanism 7 includes a guide component 63 located on the tail end of the barcode scanning mechanism 2. The bearing component 71 and limiting component 72 below the marking mechanism 3, and the feeding component 61 drive the graphite bipolar plate 9 located at the top of the feeding bin 4 to move above the transfer component 62. The transfer component 62 is used to transfer the graphite bipolar plate 9 to the bearing component 71 and, in the process of moving, cooperates with the guide component 63 to drive the bearing component 71 to rise and fall. During the descent of the bearing component 71, it drives the limiting component 72 to rise and limit the graphite bipolar plate 9. The marking mechanism 3 and the scanning mechanism 2 mark and scan the graphite bipolar plate 9 in the limiting position in turn. The unloading mechanism 8 is used to transfer the marked graphite bipolar plate 9 to the unloading bin 5 for collection. The operator first stacks the graphite bipolar plates 9 to be processed in the feeding hopper 4, then turns on the equipment. The servo motor a611 drives the drive wheel 612 and driven wheel 613 to rotate, pulling the top graphite bipolar plate 9 in the feeding hopper 4 to the right by one distance, where it lands on the roller a620. Next, the handle a626 is inserted from below into the opening on the right side of the graphite bipolar plate 9. Then, the servo motor b621 drives the lower lead screw 622 to rotate clockwise, causing the fixed seat 6... 23. Moving to the right causes the handle a626 to drive the graphite bipolar plate 9 to move backward along the roller a620. After the fixed seat 623 moves, the protrusion 6211 on the top of the handle a626 falls onto the upper surface of the upper guide rail 631 and moves along the upper surface of the upper guide rail 631. When the fixed seat 623 moves below the processing platform 14, the handle a626 drives the graphite bipolar plate 9 to transfer onto the roller b712. When the bottom of the connecting arm 6213 on one side of the fixed seat 623... After the extrusion rod 6214 contacts the inclined block 715 at the tail end of the rotating seat b711, the extrusion rod 6214 presses the inclined block 715 downwards, causing the fixed seat 623 to move backwards, which in turn drives the rotating seats a710 and b711 to descend. This causes the roller b712 to slowly descend along the through hole a15 to the bottom of the processing platform 14, allowing the graphite bipolar plate 9 carried on the roller b712 to fall onto the processing platform 14. After the graphite bipolar plate 9 falls onto the processing platform 14, the servo cylinder 81 drives the handle b82 to move above the processing platform 14. During the descent of the rotating seat a710, the racks a714 at both ends drive the gears 726 meshing with them to rotate clockwise. The rotation of the gears 726 drives the rack b727 to move upwards in the opposite direction to the rack a714, causing the limiting members a724 and b725 to slowly extend out of the through hole b16 to limit the front and rear ends of the graphite bipolar plate 9.When the protrusion 6211 moves to the end of the upper guide rail 631, it falls and resets, causing the handle a626 to descend and release the traction on the graphite bipolar plate 9. After the handle a626 falls, the rotating wheel 629 lands on the lower guide rail 630. Then, the servo motor b621 stops, and at the same time, the roller b712 descends below the processing platform 14, causing the graphite bipolar plate 9 to land on the processing platform 14. Then, the laser in the marking mechanism 3 marks the surface of the graphite bipolar plate 9. After the marking is completed, the marking mechanism 2 scans the markings on the graphite bipolar plate 9. Then, the servo motor b621 drives the lead screw 622 counterclockwise. The rotation of the needle causes the fixed seat 623 and the handle a626 to move to the left and reset. The rotating wheel 629 moves along the gentle section 632 of the lower guide rail 630. When the rotating wheel 629 enters the lifting section 633, the protrusion 6211 abuts against the swing member 634 hinged to the front end of the upper guide rail 631, lifting the swing member 634 from below. After the protrusion 6211 passes, the swing member 634 rotates and resets under the action of the torsion spring 635. During the reset process, the fixed seat 623 slowly releases the downward pressure on the rotating seats a710 and b711, allowing the rotating seats a710 and b711 to rise under the action of the reset spring b717. The resetting mechanism causes roller b712 to extend out of through hole a15, lifting the graphite bipolar plate 9 again. The opening on the right side of the lifted graphite bipolar plate 9 allows the handle b82 of the upper unloading mechanism 8 to be inserted. Simultaneously, limiting components a724 and b725 descend and retract into through hole b16, releasing the limiting effect on the graphite bipolar plate 9. Then, servo cylinder 81 drives handle b82 to move to the right, transferring the graphite bipolar plate 9 onto the support plate 41 in the unloading bin 5. After the graphite bipolar plate 9 completely lands on the support plate 41, the support plate 41 descends one position, disengaging the graphite bipolar plate 9 from handle b82 and completing the unloading process. During the resetting process of the fixed seat 623, the feeding component 61 has moved the next graphite bipolar plate 9 onto the roller a620, so that the handle a626, following the rotating wheel 629, rises and is inserted into the opening on the right side of the graphite bipolar plate 9 from below. This processing cycle repeats continuously, solving the problems of existing marking equipment where robotic arms cannot effectively feed materials, and the rough surface of the graphite bipolar plate easily leads to weak adhesion and drop. Manual feeding is time-consuming, labor-intensive, inefficient, and lacks precise positioning. Both the scanning mechanism 2 and the marking mechanism 3 are mature technologies and will not be elaborated upon further here.

[0033] like Figure 1 , Figure 3 and Figure 8As shown, the cabinet 1 has a receiving cavity 11, the bottom of the receiving cavity 11 has a sliding groove a12, the inner wall of the receiving cavity 11 has a sliding groove b13, and the top of the receiving cavity 11 is fixedly equipped with a processing platform 14, which has through holes a15 and b16. By opening the slide groove a12, the fixed seat 623 moves more smoothly under the drive of the lead screw 622. By opening the slide groove b13, the rotating seats a710 and b711 can be raised and lowered smoothly. By opening the through hole a15, the roller b712 can lift and assist in the transmission of the graphite bipolar plate 9 when it extends out of the through hole a15. After descending along the through hole a15 to below the processing platform 14, the graphite bipolar plate 9 can be placed on the processing platform 14 for marking. By opening the through hole b16, the limiting members a724 and b725 can limit the two ends of the graphite bipolar plate 9 placed on the processing platform 14 when they extend out of the through hole b16. After the limiting members a724 and b725 descend into the through hole b16, the limiting of the graphite bipolar plate 9 can be released.

[0034] like Figure 1 As shown, the material feeding assembly 61 includes a mounting base 610 fixedly mounted on the cabinet 1, a servo motor a611, and a drive wheel 612 and a driven wheel 613 driven by the servo motor a611. The drive wheel 612 is connected to the driven wheel 613 via a belt 614. Driven by the servo motor a611, the drive wheel 612 and the driven wheel 613 pull the graphite bipolar plate 9 at the top of the loading bin 4 to the right by one end, allowing it to land on the roller a620. Before the handle a626 resets, the graphite bipolar plate 9 is pre-transferred to the top of the transfer assembly 62, so that the handle a626 can automatically insert into the opening on the right side of the graphite bipolar plate 9 after resetting. This makes the processing smoother and faster, with a simple structure, good effect, and easy maintenance.

[0035] like Figure 1 , Figure 2 , Figure 6 and Figure 7As shown, the transfer assembly 62 includes rollers a620 rotatably disposed on both sides of the inner wall of the receiving cavity 11, a servo motor b621 fixedly disposed at the bottom of the receiving cavity 11, a lead screw 622 driven by the servo motor b621, and a fixed seat 623 driven by the lead screw 622. A telescopic sleeve a624 is fixedly disposed on the top of the fixed seat 623. A telescopic rod 625 is telescopically disposed inside the telescopic sleeve a624. A handle a626 is fixedly disposed on the top of the telescopic rod 625. The bottom of the telescopic rod 625 is connected to the telescopic sleeve a624 through a return spring a427. A connector 628 is fixedly disposed on one side of the handle a626. A rotating wheel 629 is rotatably disposed on the bottom of the connector 628. A support rod 6210 is fixedly connected to the top of the connector 628. A protrusion 6211 is fixedly connected to the top of the support rod 6210. A slider a6212 is disposed at the bottom of the fixed seat 623 corresponding to the sliding groove a12.The servo motor b621 drives the lower lead screw 622 to rotate clockwise, causing the fixed seat 623 to move to the right. This causes the handle a626 to pull the graphite bipolar plate 9 backward along the roller a620. After the fixed seat 623 moves, the protrusion 6211 on the top of the handle a626 falls onto the upper surface of the upper guide rail 631 and moves along the upper surface of the upper guide rail 631. When the fixed seat 623 moves below the processing platform 14, the handle a626 transfers the graphite bipolar plate 9 onto the roller b712. When the protrusion 6211 moves to the end of the upper guide rail 631, it falls back to its original position, causing the handle a626 to descend and release the traction on the graphite bipolar plate 9. After the graphite bipolar plate 9 falls, the rotating wheel 629 lands on the lower guide rail 630. Then, the servo motor b621 pauses, and at the same time, the roller b712 descends below the processing platform 14, causing the graphite bipolar plate 9 to land on the processing platform 14. Next, the laser in the marking mechanism 3 marks the surface of the graphite bipolar plate 9. After marking is completed, the marking on the graphite bipolar plate 9 is scanned by the scanning mechanism 2. Then, the servo motor b621 drives the lead screw 622 to rotate counterclockwise, causing the fixed seat 623 and the handle a626 to move to the left and reset. The rotating wheel 629 moves along the flat section 632 of the lower guide rail 630. When the rotating wheel 629 enters the lifting section 63... At time 3, the protrusion 6211 abuts against the swing member 634 hinged to the front end of the upper guide rail 631, lifting the swing member 634 from below. After the protrusion 6211 passes, the swing member 634 rotates and resets under the action of the torsion spring 635. During the reset process of the fixed seat 623, the feeding assembly 61 has already moved the next graphite bipolar plate 9 onto the roller a620, so that the handle a626 rises with the rotating wheel 629 and is inserted into the opening on the right side of the graphite bipolar plate 9 from below. The processing process is repeated in sequence, which solves the problem that the existing laser marking machine cannot effectively feed materials by means of a robotic arm, and is prone to poor adhesion due to the rough surface of the graphite bipolar plate. In cases where materials fall off, manual loading is time-consuming, labor-intensive, and inefficient. A return spring a427 allows the telescopic rod 625 to rise and fall stably within the telescopic sleeve a624, driving the handle a626 to descend and reset. The rotating wheel 629, in conjunction with the lower guide rail 630, allows the handle a626 to rise during the reset process, enabling the protrusion 6211 to land on the upper surface of the upper guide rail 631. The protrusion 6211 is circular for smoother sliding. The slider a6212, in conjunction with the groove a12, limits the movement of the fixed seat 623, making its movement more stable.

[0036] like Figure 6 and Figure 7As shown, a connecting arm 6213 is also provided on one side of the fixed seat 422, and a pressing rod 6214 is fixedly provided at the bottom of the connecting arm 6213. After the pressing rod 6214 at the bottom of the connecting arm 6213 on one side of the fixed seat 623 contacts the inclined block 715 at the tail end of the rotating seat b711, the pressing rod 6214 presses the inclined block 715 downward, so that the fixed seat 623 moves backward, driving the rotating seats a710 and b711 to descend, so that the roller b712 slowly descends along the through hole a15 to the bottom of the processing platform 14, so that the graphite bipolar plate 9 carried on the roller b712 falls on the processing platform 14. When the fixed seat 623 is closed, the pressing rod 6214 cooperates with the inclined block 715 to slowly release the downward pressure on the rotating seats a710 and b711, so that the rotating seats a710 and b711 rise and reset under the action of the return spring b717, so that the roller b71 2. Extend through hole a15 to lift graphite bipolar plate 9 again. The opening on the right side of the lifted graphite bipolar plate 9 is just right for the handle b82 in the upper unloading mechanism 8 to be inserted into. At the same time, limit member a724 and limit member b725 descend and retract into through hole b16 to release the limit on graphite bipolar plate 9. Then, servo cylinder 81 drives handle b82 to move to the right to transfer graphite bipolar plate 9 to unloading bin 5 to complete unloading. When transfer component 62 resets, it drives bearing component 71 to rise and lift graphite bipolar plate 9 from processing platform 14, so that unloading mechanism 8 can transfer graphite bipolar plate 9 for unloading. The linkage effect between components is good. Multiple components can be moved by one power, which not only saves energy and power, but also has good synchronization and better processing continuity.

[0037] like Figure 2 , Figure 6 and Figure 7As shown, the guide assembly 63 includes a lower guide rail 630 fixedly disposed in the receiving cavity 11 and an upper guide rail 631 fixedly connected to the top of the lower guide rail 630. The lower guide rail 630 is provided with a smooth section 632 and a lifting section 633. The front section of the upper guide rail 631 is hinged with a swing member 634, and a torsion spring 635 is connected between the swing member 634 and the upper guide rail 631. After the servo motor b621 drives the fixed base 623 to move, the protrusion 6211 on the top of the handle a626 lands on the upper surface of the upper guide rail 631 and moves along the upper surface of the upper guide rail 631, causing the rotating wheel 629 to disengage from the lower guide rail 630. This allows the handle a626 to maintain horizontal movement and smoothly drive the graphite bipolar plate 9 to the right. After the protrusion 6211 reaches the end of the upper guide rail 631, it falls and resets, causing the handle a626 to descend and release the traction on the graphite bipolar plate 9. After the graphite bipolar plate 9 completes marking and scanning, the servo motor b621 drives the lead screw 622 to rotate counterclockwise, causing the fixed base 623 and the handle a626 to move to the left and reset. The rotating wheel 629 moves along the lower guide rail 630. As the smooth section 632 of the rail 630 moves, when the rotating wheel 629 enters the lifting section 633, the protrusion 6211 abuts against the swing member 634 hinged to the front end of the upper guide rail 631, lifting the swing member 634 from below. After the protrusion 6211 passes, the swing member 634 rotates back to its original position under the action of the torsion spring 635. The upper guide rail 631 and the swing member 634 are at the same height as the lifting section 633 of the lower guide rail 630, but slightly shorter than the lifting section 633 of the lower guide rail 630. This ensures that the protrusion 6211 is higher than the swing member 634 after passing it. Therefore, when the handle a626 moves to the right again, the protrusion 6211 can land on the upper surface of the swing member 634 and move along the upper surface of the upper guide rail 631.

[0038] like Figure 4 , Figure 5 and Figure 6As shown, the bearing assembly 71 includes a rotating seat a710 and a rotating seat b711 symmetrically arranged below the processing platform 14. Rollers b712 are rotatably mounted on both rotating seats a710 and b711. Slider b713 is provided on the back of both rotating seats a710 and b711 corresponding to the slide groove b13. A rack a714 is fixedly mounted at both ends of rotating seat a710, and a wedge block 715 is fixedly mounted at the tail end of rotating seat b711. Rotating seats a710 and b711 are fixedly connected by a fixing rod 716. A return spring b717 is provided at the bottom of both rotating seats a710 and b711.When the fixed seat 623 moves below the processing platform 14, the handle a626 drives the graphite bipolar plate 9 to transfer onto the roller b712. When the pressing rod 6214 at the bottom of the connecting arm 6213 on one side of the fixed seat 623 contacts the inclined block 715 at the tail end of the rotating seat b711, the pressing rod 6214 presses the inclined block 715 downwards, causing the fixed seat 623 to move backwards, which in turn drives the rotating seats a710 and b711 to descend. This causes the roller b712 to slowly descend along the through hole a15 to below the processing platform 14, so that the graphite bipolar plate 9 carried on the roller b712 falls onto the processing platform 14. Then, the laser in the marking mechanism 3 marks the surface of the graphite bipolar plate 9. After marking is completed, the marking on the graphite bipolar plate 9 is scanned by the scanning mechanism 2. After marking and scanning are completed, the servo motor b621 drives the lead screw 622 to rotate counterclockwise, causing the fixed seat 623 and the handle a626 to move to the left and reset. During the reset process, the fixed seat 623 slowly releases the pressure on the rotating seats a710 and b711, causing the rotating seats a710 and b711 to rise and reset under the action of the reset spring b717, causing the roller b712 to extend out of the through hole a15 and lift the graphite bipolar plate 9 again. The opening on the right side of the lifted graphite bipolar plate 9 is just right for the handle b82 in the upper unloading mechanism 8 to be inserted into. At the same time, the limiting parts a724 and b726 are also engaged. The 725-degree descent retracts into the through hole b16, releasing the restriction on the graphite bipolar plate 9. Then, the servo cylinder 81 drives the handle b82 to move to the right, transferring the graphite bipolar plate 9 into the unloading bin 5 to complete the unloading. This not only achieves the support of the graphite bipolar plate 9 but also enables rapid unloading of the assisted-processed graphite bipolar plate 9 via the roller b712, making the loading and unloading of the graphite bipolar plate 9 more convenient and maintaining stable processing efficiency. This solves the problems of low efficiency and poor processing continuity caused by manual loading and unloading of graphite bipolar plates 9 in existing technologies. The slider b713 supports and limits the rotating seats a710 and b711 and can move through the groove... The cooperation of b13 enables the smooth lifting and lowering of rotating seats a710 and b711. Roller b712 provides support and auxiliary transmission for the graphite bipolar plate 9, making the transmission of the graphite bipolar plate 9 smoother. The shape of the inclined block 715 is set to gradually rise from front to back, so that the rotating seats a710 and b711 can slowly descend through the cooperation of the inclined block 715 and the extrusion rod 6214. When the servo motor b621 drives the fixed seat 623 to move to the right and stops, the extrusion rod 6214 is located at the end of the inclined block 715 and continues to press down on the rotating seats a710 and b711 during the marking and scanning process, which facilitates the successful completion of the marking and scanning work.

[0039] like Figure 4 and Figure 5As shown, the limiting assembly 72 includes telescopic sleeves b720 and c721, as well as rotating seats c722 and d723, symmetrically arranged below both ends of the processing platform 14. Limiting elements a724 and b725 are telescopically arranged inside the telescopic sleeves b720 and c721, respectively. Both limiting elements a724 and b725 cooperate with the through hole b16. Gears 726 are provided on both rotating seats c722 and d723. Racks b727 are provided on both limiting elements a724 and b725. The two sides of the gears 726 mesh with racks a714 and b727, respectively. The bottoms of the limiting elements a724 and b725 are connected to the telescopic sleeves b720 and c721, respectively, through a return spring c728. During the descent of the rotating seat a710, the racks a714 at both ends drive the meshing gears 726 to rotate clockwise. The rotation of gear 726 causes rack b727 to move upwards in the opposite direction to rack a714, causing limiting members a724 and b725 to slowly extend out of the through hole b16 to limit the front and rear ends of the graphite bipolar plate 9. After marking and scanning are completed, the fixed seat 623 resets, releasing the pressure rod 6214 from the inclined block 715, thus allowing the rotating seats a710 and b711 to rise and reset. When the rotating seat a710 rises, the rack a714 drives gear 726 to rotate counterclockwise. The mechanism involves the gear 726 rotating to drive the rack b727 downwards, causing the limiting components a724 and b725 to descend and reset, releasing the limiting on the graphite bipolar plate 9. This allows the handle b82 to drive the graphite bipolar plate 9 to complete the unloading process, achieving automated limiting and fixing of the graphite bipolar plate 9 during processing. This ensures precise positioning of the graphite bipolar plate 9 and maintains stability during processing, preventing deviations that could affect marking quality and making marking more accurate. It solves the problem that existing technologies cannot guarantee precise positioning of the graphite bipolar plate 9 through manual feeding, and that the graphite bipolar plate 9 lacks effective fixing during processing, thus affecting marking quality.

[0040] like Figure 1 and Figure 8As shown, the unloading mechanism 8 includes a servo cylinder 81 fixedly installed at the tail end of the unloading bin 5, with a handle b82 fixedly connected to the front end of the servo cylinder 81. The servo cylinder 81 is pre-programmed with a push-pull interval. When the bearing component 71 descends and places the graphite bipolar plate 9 on the processing platform 14, the servo cylinder 81 drives the handle b82 to reset. After the handle b82 is reset, its position is above the working platform 14. When the bearing component 71 rises and resets under the action of the transfer component 62, it lifts the graphite bipolar plate 9 from the processing platform 14, allowing the handle b82 to pass through the opening on the right side of the graphite bipolar plate 9 and engage with it. This allows the handle b82 to accurately pull the graphite bipolar plate 9 to complete the unloading process. The unloading method is smooth and fast, with a high degree of automation, solving the problems of slow unloading speed and poor processing continuity caused by manual handling in existing technologies.

[0041] like Figure 3 and Figure 4 As shown, both the loading bin 4 and the unloading bin 5 are equipped with a support plate 41, and a return spring d42 is fixedly connected to the bottom of the support plate 41. The return spring d42 at the bottom of the support plate 41 in the loading bin 4 has greater rigidity than that in the unloading bin 5. Therefore, after the uppermost graphite bipolar plate 9 is transferred, the support plate 41 in the loading bin 4 can lift the next graphite bipolar plate 9 so that it is exposed on the top end face of the loading bin 4 and fits against the driving wheel 612 and the driven wheel 613, which facilitates subsequent transmission. When the unloading mechanism 8 transfers a graphite bipolar plate 9 onto the support plate 41 in the unloading bin 5, the support plate 41 will drop down by the height of one graphite bipolar plate 9, so that the top surface of the uppermost graphite bipolar plate 9 is parallel to the top end face of the unloading bin 5. This allows the handle b82 to detach from the opening on one side of the graphite bipolar plate 9, so that the unloading of the graphite bipolar plate 9 does not interfere with the reset of the handle b82.

[0042] Example 2

[0043] like Figure 3 As shown, components that are the same as or corresponding to those in Embodiment 1 are referred to by the same reference numerals as those in Embodiment 1. For simplicity, only the differences from Embodiment 1 will be described below. The difference between Embodiment 2 and Embodiment 1 is that baffles 17 are provided on both sides of the top of the receiving cavity 11. By setting the baffles 17, the two sides of the graphite bipolar plate 9 can be kept in a limited position at all times during the transmission and processing, so as to avoid the graphite bipolar plate 9 from shifting during the transmission, causing inaccurate positioning and affecting the processing quality.

[0044] In the description of this invention, it should be understood that the terms "front and back", "left and right", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the invention.

[0045] Of course, those skilled in the art should understand that the term "a" should be understood as "at least one" or "one or more". That is, in one embodiment, the number of an element can be one, while in another embodiment, the number of the element can be multiple. The term "a" should not be understood as a limitation on the quantity.

[0046] The above description is merely a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art under the technical guidance of the present invention should be included within the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be determined by the scope of the claims.

Claims

1. An automatic loading, unloading, and marking device for graphite bipolar plates, comprising a cabinet (1) and a barcode scanning mechanism (2) disposed in the middle of the cabinet (1), wherein a marking mechanism (3) is disposed at the tail end of the barcode scanning mechanism (2), characterized in that, The cabinet (1) is provided with a loading bin (4) and a unloading bin (5) at both ends. A conveying mechanism (6) is provided above the loading bin (4). A lifting mechanism (7) is provided between the conveying mechanism (6) and the unloading bin (5). A dropping mechanism (8) is provided at the tail end of the lifting mechanism (7). The conveying mechanism (6) includes a feeding component (61) provided above the loading bin (4) and a transfer component (62) provided at the tail end of the feeding component (61). A guide component (63) is provided on one side of the transfer component (62). The lifting mechanism (7) includes a bearing component (71) and a limiting component (72) provided below the marking mechanism (3). The material assembly (61) moves the graphite bipolar plate (9) located at the top of the loading bin (4) to the top of the transfer assembly (62). The transfer assembly (62) is used to transfer the graphite bipolar plate (9) to the carrying assembly (71) and, in the process of moving, cooperates with the guide assembly (63) to drive the carrying assembly (71) to rise and fall. During the descent of the carrying assembly (71), it drives the limiting assembly (72) to rise and limit the graphite bipolar plate (9). The marking mechanism (3) and the scanning mechanism (2) mark and scan the graphite bipolar plate (9) in the limiting position in turn. The unloading mechanism (8) is used to transfer the marked graphite bipolar plate (9) to the unloading bin (5) for collection. The cabinet (1) has a receiving cavity (11), the bottom of the receiving cavity (11) has a sliding groove a (12), the inner wall of the receiving cavity (11) has a sliding groove b (13), and the top of the receiving cavity (11) is fixedly provided with a processing platform (14). The transfer assembly (62) includes rollers a (620) rotatably disposed on both sides of the inner wall of the receiving cavity (11), a servo motor b (621) fixedly disposed at the bottom of the receiving cavity (11), a lead screw (622) driven by the servo motor b (621), and a fixed seat (623) driven by the lead screw (622). A telescopic sleeve a (624) is fixedly disposed on the top of the fixed seat (623). A telescopic rod (625) is telescopically disposed inside the telescopic sleeve a (624). A handle a (626) is fixedly disposed on the top of the telescopic rod (625). The telescopic rod (625) can be inserted into the opening on the right side of the graphite bipolar plate (9) from below. The bottom of the telescopic rod (625) is connected to the telescopic sleeve (624) through the return spring a (627). A connector (628) is fixedly provided on one side of the handle a (626). A rotating wheel (629) is rotatably provided at the bottom of the connector (628). A support rod (6210) is fixedly connected to the top of the connector (628). A protrusion (6211) is fixedly connected to the top of the support rod (6210). A slider a (6212) is provided at the bottom of the fixed seat (623) corresponding to the sliding groove a (12). A connecting arm (6213) is also provided on one side of the fixed base (623), and a pressing rod (6214) is fixedly provided at the bottom of the connecting arm (6213). The pressing rod (6214) cooperates with the inclined block (715) provided on the bearing component (71). The guide assembly (63) includes a lower guide rail (630) fixedly disposed in the receiving cavity (11) and an upper guide rail (631) fixedly connected to the top of the lower guide rail (630). The lower guide rail (630) is provided with a smooth section (632) and a lifting section (633). The front section of the upper guide rail (631) is hinged with a swing member (634). A torsion spring (635) is connected between the swing member (634) and the upper guide rail (631). The bearing assembly (71) includes a rotating seat a (710) and a rotating seat b (711) symmetrically arranged below the processing platform (14). Rollers b (712) are rotatably arranged on both rotating seats a (710) and rotating seats b (711). Slider b (713) is provided on the back of both rotating seats a (710) and rotating seats b (711) corresponding to the sliding groove b (13). A rack a (714) is fixedly arranged at both ends of rotating seat a (710). A wedge block (715) is fixedly arranged at the tail end of rotating seat b (711). Rotating seats a (710) and rotating seats b (711) are fixedly connected by a fixing rod (716). A return spring b (717) is provided at the bottom of both rotating seats a (710) and rotating seats b (711).

2. The automatic loading, unloading, and marking equipment for graphite bipolar plates according to claim 1, characterized in that, The processing platform (14) is provided with through holes a (15) and b (16), and baffles (17) are provided on both sides of the top of the receiving cavity (11).

3. The automatic loading, unloading, and marking equipment for graphite bipolar plates according to claim 1, characterized in that, The material feeding assembly (61) includes a mounting base (610) fixedly mounted on the cabinet (1), a servo motor a (611), and a drive wheel (612) and a driven wheel (613) driven by the servo motor a (611). The drive wheel (612) is connected to the driven wheel (613) via a belt (614).

4. The automatic loading, unloading, and marking equipment for graphite bipolar plates according to claim 2, characterized in that, The limiting assembly (72) includes telescopic sleeves b (720), c (721), and rotating seats c (722) and d (723) symmetrically arranged below both ends of the processing platform (14). Limiting elements a (724) and b (725) are telescopically arranged inside the telescopic sleeves b (720) and c (721), respectively. Both limiting elements a (724) and b (725) cooperate with the through hole b (16). Gears (726) are provided on c (722) and rotating seat d (723). Racks (727) are provided on limiting member a (724) and limiting member b (725). The two sides of the gear (726) mesh with racks a (714) and rack b (727) respectively. The bottom of the limiting member a (724) and limiting member b (725) are connected to the telescopic sleeve b (720) and telescopic sleeve c (721) respectively through the return spring c (728).

5. The automatic loading, unloading, and marking equipment for graphite bipolar plates according to claim 1, characterized in that, The material feeding mechanism (8) includes a servo cylinder (81) fixedly installed at the tail end of the feeding bin (5), and a handle b (82) is fixedly connected to the front end of the servo cylinder (81).

6. The automatic loading, unloading, and marking equipment for graphite bipolar plates according to claim 1, characterized in that, Both the loading bin (4) and the unloading bin (5) are equipped with a bearing plate (41), and a reset spring d (42) is fixedly connected to the bottom of the bearing plate (41).

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