New energy automobile production part conveying device

By using a closed system and nitrogen protection, the oxidation and moisture absorption problems of bipolar plates during transportation are solved, ensuring colloidal stability, reducing rework rate, and improving transportation efficiency.

CN121734857AInactive Publication Date: 2026-03-27JIANGSU HENGHONG NEW ENERGY TECHNOLOGY CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2026-02-25
Publication Date
2026-03-27
Estimated Expiration
Not applicable · inactive patent

AI Technical Summary

Technical Problem

Existing conveying devices are prone to oxidation, moisture absorption and deterioration of bipolar plates after adhesive coating, and dust and metal shavings easily adhere to them, leading to sealing defects and leakage risks.

Method used

The enclosed system, consisting of a conveyor belt, cavity hood, placement box, and sealing cover, combined with nitrogen protection, provides double protection before and after adhesive application, blocking external pollutants and oxygen from contacting each other.

Benefits of technology

This ensures that the colloid does not oxidize, solidify, or absorb moisture during transport, reducing rework rates in subsequent processes and improving transport stability and safety.

✦ Generated by Eureka AI based on patent content.

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Abstract

The invention relates to the technical field of workshop conveying equipment, in particular to a new energy automobile production part conveying device which comprises a conveying frame, a conveying belt arranged at the top end of the conveying frame and a gluing assembly fixed to one side of the top end of the conveying frame. Impurities such as dust and metal chippings in air in a workshop are prevented from being adhered to gluing seams of the bipolar plate, the problem that the impurities influence the glue solution coating uniformity in traditional conveying is solved from the source, a foundation is laid for the subsequent stable gluing effect, and after gluing is completed, the conveying protection assembly can operate again, so that the top of the containing box is closed, and the working efficiency is improved. An independent protection space is formed, external pollutants are effectively prevented from entering the interior to make contact with uncured colloid, the dual protection of pollution prevention before gluing and damage prevention after gluing greatly improves the stability and safety of conveying and transferring of the bipolar plate in a workshop, and the overall conveying effect is guaranteed.
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Description

Technical Field

[0001] This invention relates to the field of workshop conveying equipment technology, specifically a conveying device for new energy vehicle production parts. Background Technology

[0002] During the manufacturing process of new energy vehicle components, it is necessary to transfer the components to various processes for processing. The transfer of new energy vehicle components requires the use of conveying devices. Bipolar plates are core components of fuel cell electric vehicles in the field of new energy vehicles. As a key component of fuel cell stacks, their performance directly affects the power density, lifespan and safety of fuel cell stacks, and thus relates to the range and operational reliability of fuel cell electric vehicles.

[0003] In the automated production process of bipolar plates, belt conveyors are required to complete the transportation and transfer of multiple key processes: after the initial cutting and surface treatment processes, the plates are transferred by the conveyor to the glue application station for glue application; after the glue application is completed, the conveyor transports the glued bipolar plates to the subsequent pressing (lamination), assembly and other processes. Throughout the entire production process, the conveyor plays a core role in the precise transfer of bipolar plates and is an important piece of equipment to ensure the continuity of production.

[0004] However, in the conveying process after the bipolar plates are coated with adhesive, the existing conveying devices have obvious technical defects: the bipolar plates after coating are mostly directly exposed to the workshop air, and the surface of the adhesive is prone to react with oxygen, resulting in premature oxidation and curing. At the same time, the moisture in the environment will cause the adhesive to absorb moisture and deteriorate, resulting in abnormal viscosity or surface skinning. Pollutants such as dust and metal shavings in the workshop air are also prone to adhere to the uncured adhesive surface, forming sealing defects. This can easily lead to leakage risks during subsequent pressing or assembly, resulting in poor overall conveying and protection effects. Summary of the Invention

[0005] The purpose of this invention is to provide a conveying device for new energy vehicle production parts, in order to solve the obvious technical defects of the existing conveying devices mentioned in the background art. After the bipolar plates are coated with adhesive, they are often directly exposed to the workshop air. The surface of the adhesive is prone to react with oxygen, resulting in premature oxidation and curing. At the same time, the moisture in the environment will cause the adhesive to absorb moisture and deteriorate, resulting in abnormal viscosity or surface skinning. Pollutants such as dust and metal shavings in the workshop air are also prone to adhere to the uncured adhesive surface, forming sealing defects, which can easily lead to leakage risks during subsequent pressing or assembly.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a conveying device for new energy vehicle production parts, comprising a conveyor frame, a conveyor belt disposed at the top of the conveyor frame, and an adhesive application assembly fixed to one side of the top of the conveyor frame. A plurality of cavity covers are fixedly installed at equal intervals at the top of the conveyor frame. Each cavity cover has a vertically slidingly engaging placement box at its top. A bipolar plate is placed inside each placement box. Two sealing covers are symmetrically fitted to the top of each placement box. A conveying protection assembly is disposed on one side of each cavity cover. The conveying protection assembly includes a bidirectional threaded rod and a rotating rod. The two ends of the bidirectional threaded rod are rotatably mounted on the outside of one side of the cavity cover via rotating seats. The rotating rod is rotatably mounted inside the bottom end of the cavity cover. The bidirectional threaded rod and the rotating rod are vertically arranged.

[0007] Furthermore, conveyor rollers are fitted and driven inside both ends of the conveyor belt, and both ends of the conveyor rollers are rotatably and through-engaged and installed on the outside of one side of the cavity cover. A control motor is fixedly installed on the outside of one side of the conveyor frame, and the output end of the control motor is coaxially fixed with one end of the conveyor roller.

[0008] Furthermore, a stepper motor is fixedly installed on one side of the cavity cover via a bracket. The output end of the stepper motor is coaxially fixed with one end of the bidirectional threaded rod. A limit block is fixedly installed on the side of each sealing cover near the bottom end of the bidirectional threaded rod. The bottom end of each limit block is threaded through and installed on one side of the bidirectional threaded rod.

[0009] Furthermore, a guide block is fixedly installed on the bottom side of each sealing cover away from the limiting block, and a guide rod is slidably installed through the bottom end of the guide block. Both ends of the guide rod are fixedly installed on the outside of one side of the cavity cover by brackets.

[0010] Furthermore, a worm gear is fixedly installed through one end of the rotating rod, a worm is fixedly installed through the middle of the bidirectional threaded rod, one side of the worm is meshed with one side of the worm gear, and pull rods are fixedly installed through both sides of the rotating rod near the bottom edge of the placement box.

[0011] Furthermore, a connecting frame is rotatably mounted on the end of the pull rod away from the rotating rod, and a positioning seat is rotatably mounted on the end of the connecting frame away from the pull rod. The top of the positioning seat is fixedly mounted on the outside of the bottom side of the placement box.

[0012] Furthermore, a positioning frame is fixedly installed at the top of the gas collecting cylinder, and the top of the positioning frame is fixedly installed on the outside of the bottom side of the placement box. A piston rod is vertically and slidably sealed inside the bottom of the gas collecting cylinder, and the bottom end of the piston rod is fixedly installed on the bottom wall of the cavity cover. A one-way air inlet valve pipe is fixedly installed through the top of the gas collecting cylinder. A spring compression conductor is fixedly installed on the outside of the bottom side of the cavity cover. The output end of the spring compression conductor is connected and fixedly connected to the input end of the one-way air inlet valve pipe. An abutment block is fixedly installed on the outside of the cavity cover near the top of the spring compression conductor.

[0013] Furthermore, a first pressing valve is fixedly installed on the outer side of the top of the conveyor frame away from the glue application assembly. The input end of the first pressing valve is connected to a connecting pipe. An air storage tank is fixedly installed on the bottom side of the conveyor frame. The input end of the connecting pipe is sealed and fixed inside the air storage tank on one side.

[0014] Furthermore, the air injection assembly includes an expansion airbag and a jet nozzle. The expansion airbag is adhered and fixed to the outside of the bottom side of the placement box, and the jet nozzle is fixedly installed on the outside of the top corner of the placement box. A one-way exhaust valve pipe is fixedly installed through one side of the expansion airbag, and the output end of the one-way exhaust valve pipe is fixedly installed through the inside of the top side of the air collecting cylinder. A positioning tube is fixedly installed through the side of the expansion airbag away from the one-way exhaust valve pipe, and the positioning tube is fixedly installed on the outside of the bottom side of the placement box by a bracket.

[0015] Furthermore, a second pressing valve is fixedly and continuously connected to one side of the positioning tube, and a diverter pipe is fixedly and continuously connected to the output end of the second pressing valve. The output end of the diverter pipe is fixedly and continuously connected to the input end of the jet head. A squeezing block is fixedly installed on the inner wall of the cavity cover near the bottom end of the second pressing valve, and the pressing trigger end of the second pressing valve is located on the side facing the squeezing block.

[0016] Compared with the prior art, the beneficial effects of the present invention are as follows: By setting up a conveyor belt, cavity cover, placement box, sealing cover, and conveying protection components, the conveying device can achieve precise sealing of the placement box when conveying bipolar plates before adhesive application. This prevents dust, metal shavings, and other impurities in the workshop air from adhering to the adhesive seams of the bipolar plates, thus solving the problem of impurities affecting the uniformity of adhesive coating in traditional conveying from the source. This lays the foundation for a stable adhesive coating effect in the future. After adhesive application, the conveying protection components can operate again to seal the top of the placement box, forming an independent protective space. This effectively prevents external pollutants from entering the interior and contacting the uncured adhesive. This dual protection against contamination before adhesive application and against damage after adhesive application greatly improves the stability and safety of bipolar plate conveying and transfer within the workshop, ensuring the overall conveying effect.

[0017] The combination of the gas collecting cylinder and the gas injection component enables precise nitrogen protection of the colloid, further ensuring the quality of conveying. The nitrogen injection process is only initiated after the colloid application is completed and the sealing cover is fully closed. This avoids waste caused by premature nitrogen injection or protection failure due to poor sealing. The injected nitrogen forms a stable inert atmosphere in the placement box, which effectively blocks the contact between the colloid and oxygen, preventing premature oxidation and curing or skin formation on the colloid surface. At the same time, it isolates the colloid from environmental moisture, preventing moisture absorption and abnormal viscosity. This ensures that the colloid remains in the optimal uncured state throughout the bipolar plate's conveyor belt transport. This design solves the key problem of colloid deterioration in traditional conveying, significantly reducing the rework rate of subsequent processes due to colloid failure, and significantly improving the quality stability and production efficiency of the conveying process. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a partial cross-sectional three-dimensional structural schematic diagram of the conveyor belt and cavity cover of the present invention; Figure 3 for Figure 2 Enlarged structural diagram at point A in the middle; Figure 4 This is a three-dimensional structural diagram of the cavity cover and sealing cover plate of the present invention; Figure 5 for Figure 4 Enlarged structural diagram at point B; Figure 6 This is a partial cross-sectional three-dimensional structural schematic diagram of the cavity cover and rotating rod of the present invention; Figure 7 for Figure 6 Enlarged structural diagram at point C; Figure 8 This is a schematic diagram demonstrating how the rotation of the bidirectional threaded rod of the present invention drives the sealing cover plates on both sides to move in the center. Figure 9 This is a three-dimensional structural diagram of the spring compression conduction head and the first pressing valve of the present invention; Figure 10 This is a partial cross-sectional three-dimensional structural schematic diagram of the piston rod and gas collecting cylinder of the present invention; Figure 11 This is a partial cross-sectional three-dimensional structural schematic diagram of the gas collecting cylinder and positioning frame of the present invention; Figure 12 This is a partial cross-sectional three-dimensional structural diagram of the placement box and the inflatable airbag of the present invention.

[0019] The attached diagram lists the components represented by each number as follows: 1. Conveyor frame; 2. Conveyor belt; 3. Glue application assembly; 4. Cavity cover; 5. Placement box; 6. Bipolar plate; 7. Sealing cover plate; 8. Bidirectional threaded rod; 9. Stepper motor; 10. Limit block; 11. Guide rod; 12. Guide block; 13. Worm gear; 14. Rotating rod; 15. Worm wheel; 16. Pull rod; 17. Connecting frame; 18. Positioning seat; 19. Piston rod; 20. Air collection cylinder; 21. Positioning frame; 22. One-way air inlet valve pipe; 23. Spring compression guide head; 24. First pressing valve; 25. Guide pipe; 26. Air tank; 27. One-way exhaust valve pipe; 28. Inflatable air bladder; 29. ​​Positioning pipe; 30. Second pressing valve; 31. Diverter pipe; 32. Jet nozzle; 33. Extrusion block; 34. Conveyor roller; 35. Control motor; 36. Contact block. Detailed Implementation

[0020] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0021] Example 1: Please refer to Figure 1 - Figure 8 A new energy vehicle production parts conveying device includes a conveyor frame 1, a conveyor belt 2 set at the top of the conveyor frame 1, and an adhesive application assembly 3 fixed to one side of the top of the conveyor frame 1. Several cavity covers 4 are fixedly installed at equal intervals at the top of the conveyor frame 1. Placement boxes 5 are vertically slidably engaged at the top of each cavity cover 4. Bipolar plates 6 are placed inside the placement boxes 5. Two sealing cover plates 7 are symmetrically attached to the top of the placement boxes 5. A conveying protection assembly is set on one side of the cavity cover 4. The conveying protection assembly includes a bidirectional threaded rod 8 and a rotating rod 14. The two ends of the bidirectional threaded rod 8 are rotatably installed on the outside of one side of the cavity cover 4 through a rotating seat. The rotating rod 14 is rotatably installed inside the bottom end of the cavity cover 4. The bidirectional threaded rod 8 and the rotating rod 14 are arranged vertically.

[0022] Both ends of the conveyor belt 2 are fitted with conveyor rollers 34. Both ends of the conveyor rollers 34 are rotatably and through-engaged and installed on one side of the cavity cover 4. A control motor 35 is fixedly installed on one side of the conveyor frame 1. The output end of the control motor 35 is coaxially fixed with one end of the conveyor roller 34.

[0023] A stepper motor 9 is fixedly installed on one side of the cavity cover 4 by a bracket. The output end of the stepper motor 9 is coaxially fixed with one end of the bidirectional threaded rod 8. Each sealing cover 7 is fixedly installed on the side near the bottom end of the bidirectional threaded rod 8. The bottom end of the limit block 10 is threaded through and installed on the outside of one side of the bidirectional threaded rod 8.

[0024] Each sealing cover 7 has a guide block 12 fixedly installed on the bottom side away from the limit block 10. A guide rod 11 is slidably installed through the bottom end of the guide block 12. Both ends of the guide rod 11 are fixedly installed on the outside of one side of the cavity cover 4 by brackets.

[0025] A worm gear 15 is fixedly installed through one end of the rotating rod 14, and a worm 13 is fixedly installed through the middle of the double-threaded rod 8. One side of the worm 13 is meshed with one side of the worm gear 15. Pull rods 16 are fixedly installed through both sides of the rotating rod 14 near the bottom edge of the placement box 5.

[0026] A connecting bracket 17 is rotatably mounted on the end of the pull rod 16 away from the rotating rod 14. A positioning seat 18 is rotatably mounted on the end of the connecting bracket 17 away from the pull rod 16. The top of the positioning seat 18 is fixedly mounted on the outside of the bottom side of the placement box 5.

[0027] In this embodiment, the bipolar plate 6 to be processed is first precisely placed inside the placement box 5 using an existing robotic arm, thus completing the feeding operation of the bipolar plate 6.

[0028] Subsequently, the stepper motor 9 on one side of the cavity cover 4 starts, and its output end drives the bidirectional threaded rod 8 to rotate along the rotating seat. Since the limiting block 10 at the bottom of each sealing cover 7 is threadedly connected to the bidirectional threaded rod 8, and the guide block 12 at the bottom of the other side of the sealing cover 7 slides along the guide rod 11, the rotation of the bidirectional threaded rod 8 will drive the two sealing cover 7 to move towards each other in the horizontal direction until they are completely attached to the top of the placement box 5, thus sealing the placement box 5. At the same time, the worm gear 13 fixed in the middle of the bidirectional threaded rod 8 rotates synchronously with it, and the worm gear 13 meshes with the worm wheel 15 fixed at one end of the rotating rod 14. The combined transmission drives the rotating rod 14 to rotate along the bottom of the cavity cover 4. The pull rods 16 on both sides of the rotating rod 14 rotate with it and pull the placement box 5 through the connecting frame 17 and the positioning seat 18. This causes the placement box 5 to move downward along the vertical sliding locking structure at the top of the cavity cover 4 for storage. This allows the placement box 5 to be accurately sealed when the bipolar plate 6 is conveyed before adhesive application. This prevents dust, metal shavings and other impurities in the workshop air from adhering to the adhesive seam of the bipolar plate 6. This solves the problem of impurities affecting the uniformity of adhesive coating in traditional conveying from the source and lays the foundation for a stable adhesive coating effect in the future.

[0029] Next, the control motor 35 on one side of the control conveyor frame 1 starts, and its output end drives the conveyor roller 34 to rotate. The conveyor roller 34 is in close contact with the inside of the conveyor belt 2, driving the conveyor belt 2 to move the cavity cover 4 and the internally enclosed placement box 5 intermittently to ensure accurate delivery to the corresponding glue injection position of the glue application assembly 3. When the cavity cover 4 moves directly below the glue application assembly 3, the control motor 35 stops running, the stepper motor 9 starts in reverse and drives the bidirectional threaded rod 8 to rotate in reverse, so that the two sealing cover plates 7 move in opposite directions in the horizontal direction, opening the top of the placement box 5; at the same time, the worm gear 13 drives the worm wheel 15 and the rotating rod 14 to rotate in reverse, and the pull rod 16 pushes the placement box 5 to rise vertically along the cavity cover 4, so that the bipolar plate 6 inside the placement box 5 reaches the working height of the glue application assembly 3. Then the glue application assembly 3 starts to apply glue to the bipolar plate 6. After the glue application is completed, the stepper motor 9 starts in the forward direction again, driving the sealing cover plate 7 to close the top of the placement box 5 again, and at the same time the placement box 5 descends into the cavity cover 4. Finally, the control motor 35 starts again, and the conveyor belt 2 drives the placement box 5, which is sealed with the coated bipolar plate 6, to continue moving intermittently, transporting it to the next processing step and completing a single transport operation. This allows the transport protection component to operate again after the bipolar plate 6 is coated with adhesive, thereby sealing the top of the placement box 5 and forming an independent protective space. This effectively prevents external pollutants from entering the interior and contacting the uncured adhesive. This dual protection against contamination before coating and against damage after coating greatly improves the stability and safety of the bipolar plate 6 during transport and transfer within the workshop, ensuring the overall transport effect.

[0030] Example 2: Please refer to Figure 9 - Figure 12 This embodiment further illustrates Example 1: A gas collecting cylinder 20 is vertically arranged at the center of the bottom of the placement box 5, and gas injection components are arranged on both sides of the gas collecting cylinder 20.

[0031] A positioning frame 21 is fixedly installed at the top of the air collecting cylinder 20. The top of the positioning frame 21 is fixedly installed on the outside of the bottom side of the placement box 5. A piston rod 19 is vertically and slidingly sealed inside the bottom of the air collecting cylinder 20. The bottom of the piston rod 19 is fixedly installed on the bottom wall of the cavity cover 4. A one-way air inlet valve pipe 22 is fixedly installed through the top of the air collecting cylinder 20. A spring compression conductor 23 is fixedly installed on the outside of the bottom side of the cavity cover 4. The output end of the spring compression conductor 23 is connected and fixedly connected to the input end of the one-way air inlet valve pipe 22. An abutment block 36 is fixedly installed on the outside of the cavity cover 4 near the top of the spring compression conductor 23.

[0032] A first pressing valve 24 is fixedly installed on the top side of the conveyor frame 1, away from the glue application component 3. The input end of the first pressing valve 24 is connected to a connecting pipe 25. A gas storage tank 26 is fixedly installed on the bottom side of the conveyor frame 1. The input end of the connecting pipe 25 is sealed and fixed inside the gas storage tank 26.

[0033] The air injection assembly includes an inflatable airbag 28 and a jet nozzle 32. The inflatable airbag 28 is adhered and fixed to the outside of the bottom side of the placement box 5. The jet nozzle 32 is fixedly installed on the outside of the top corner of the placement box 5. A one-way exhaust valve pipe 27 is fixedly installed through one side of the inflatable airbag 28. The output end of the one-way exhaust valve pipe 27 is fixedly installed through the inside of the top side of the air collecting cylinder 20. A positioning pipe 29 is fixedly installed through the side of the inflatable airbag 28 away from the one-way exhaust valve pipe 27. The positioning pipe 29 is fixedly installed on the outside of the bottom side of the placement box 5 by a bracket.

[0034] A second pressing valve 30 is fixedly and continuously connected to one side of the positioning tube 29. A diverter pipe 31 is fixedly and continuously connected to the output end of the second pressing valve 30. The output end of the diverter pipe 31 is fixedly and continuously connected to the input end of the jet head 32. A squeezing block 33 is fixedly installed on the inner wall of the cavity cover 4 near the bottom of the second pressing valve 30. The pressing trigger end of the second pressing valve 30 is located on the side facing the squeezing block 33.

[0035] In this embodiment, firstly, during the conveying stage before adhesive application, the protection logic of Embodiment 1 continues: after the existing robotic arm places the bipolar plate 6 into the placement box 5, the stepper motor 9 drives the bidirectional threaded rod 8 to rotate. Through the cooperation of the limiting block 10 and the guide block 12, the two sealing cover plates 7 close the top of the placement box 5. At the same time, the worm gear 13 meshes with the worm wheel 15 to drive the rotating rod 14 to rotate. The pull rod 16 pulls the placement box 5 down into the cavity cover 4 through the connecting frame 17 and the positioning seat 18. Then, the control motor 35 starts, and the conveying roller 34 drives the conveyor belt 2 to intermittently convey the cavity cover 4 containing the bipolar plate 6 to the designated position corresponding to the adhesive application component 3, completing the sealing and protective conveying before adhesive application.

[0036] When the cavity cover 4 precisely reaches directly below the adhesive application assembly 3, the control motor 35 stops running. At this time, the cavity cover 4 approaches the contact block 36 at the top of the spring compression guide head 23, which abuts against the first pressing valve 24 fixed on the conveyor frame 1, triggering the first pressing valve 24 to open; simultaneously, the spring compression guide head 23 at the bottom of the cavity cover 4 is tightly fitted with the output end of the first pressing valve 24, forming a nitrogen delivery path. Immediately afterwards, the stepper motor 9 starts in reverse, driving the bidirectional threaded rod 8 to rotate in reverse, and the sealing cover 7 moves in opposite directions along the guide rod 11 to open the top of the placement box 5; at the same time, the worm gear 13 drives the worm wheel 15 and the rotating rod 14 to rotate in reverse, and the pull rod 16 pushes the placement box 5 to rise vertically along the cavity cover 4. Since the gas collecting cylinder 20 is fixed to the bottom of the placement box 5 by the positioning frame 21, and the bottom of the piston rod 19, which is slidably and sealed inside the gas collecting cylinder 20, is fixed to the bottom wall of the cavity cover 4, the gas collecting cylinder 20 will move upward synchronously when the placement box 5 is lifted. The internal volume of the gas collecting cylinder 20 increases and a negative pressure is formed, which draws the nitrogen in the gas storage tank 26 into the gas collecting cylinder 20 through the guide pipe 25, the first pressing valve 24, the spring compression guide head 23 and the one-way air inlet valve pipe 22, thus completing the nitrogen extraction process.

[0037] After the placement box 5 is raised to the working height of the adhesive application assembly 3, the adhesive application assembly 3 starts to apply adhesive to the bipolar plate 6 inside the placement box 5. After the adhesive application is completed, the stepper motor 9 starts forward again, and the bidirectional threaded rod 8 drives the sealing cover 7 to move towards the center to prepare for sealing. At the same time, the rotating rod 14 rotates in the opposite direction, and the pull rod 16 pulls the placement box 5 vertically downward along the cavity cover 4. When the placement box 5 descends, the gas collecting cylinder 20 moves downward synchronously with it. The decrease in internal volume causes the pressure to increase. The nitrogen in the gas collecting cylinder 20 is discharged into the expansion bladder 28 attached to the bottom of the placement box 5 through the one-way exhaust valve pipe 27, realizing the temporary storage of nitrogen.

[0038] When the placement box 5 is fully lowered into the cavity cover 4, the two sealing covers 7 completely close the top of the placement box 5, completing the sealing operation. At this time, the second pressure valve 30 in the air injection assembly at the bottom of the placement box 5 descends with the placement box 5 (as shown). Figure 12 (As indicated by the black arrow in the middle) and contacts the extrusion block 33 on the inner wall of the cavity cover 4. The extrusion block 33 presses the trigger end of the second press valve 30, causing the second press valve 30 to open. The nitrogen gas temporarily stored in the expansion bladder 28 enters the diversion pipe 31 through the positioning tube 29 and the second press valve 30, and finally passes through the jet nozzle 32 at the top corner of the placement box 5, and is evenly sprayed into the closed placement box 5 to form a stable inert nitrogen atmosphere, which protects the uncured colloid and prevents it from oxidizing, absorbing moisture or being contaminated with impurities. Finally, the control motor 35 is restarted, and the conveyor belt 2 drives the closed and nitrogen-protected placement box 5 to continue to be intermittently transported to the next processing step, completing the entire glue coating, protection and transport process.

[0039] In summary, this conveying device, through the cooperation of the gas collecting cylinder 20 and the gas injection component, can achieve precise nitrogen protection for the colloid, further ensuring the conveying quality. The nitrogen injection process is only started after the colloid application is completed and the sealing cover 7 is completely closed, avoiding waste caused by premature nitrogen injection or protection failure caused by poor sealing. The injected nitrogen forms a stable inert atmosphere in the placement box 5, which can effectively block the contact between the colloid and oxygen, prevent the colloid from prematurely oxidizing and curing or forming a skin on the colloid surface, and isolate the ambient moisture to prevent the colloid from absorbing moisture and causing abnormal viscosity. This ensures that the colloid remains in the best uncured state throughout the entire transfer of the bipolar plate 6 on the conveyor belt 2. This design solves the key problem of easy deterioration of colloid in traditional conveying, greatly reduces the rework rate of subsequent processes caused by colloid failure, and significantly improves the quality stability and production efficiency of the conveying process.

[0040] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0041] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A conveying device for new energy vehicle production parts, comprising a conveyor frame (1), a conveyor belt (2) disposed at the top of the conveyor frame (1), and an adhesive application assembly (3) fixed to one side of the top of the conveyor frame (1), characterized in that: The top of the conveyor frame (1) is fixedly installed with several cavity covers (4) at equal intervals. The top of each cavity cover (4) is vertically slidably fitted with a placement box (5). The placement box (5) contains a bipolar plate (6). The top of the placement box (5) is symmetrically fitted with two sealing cover plates (7). A conveying protection component is provided on one side of the cavity cover (4). A gas collecting cylinder (20) is vertically installed in the middle of the bottom of the placement box (5). Gas injection components are provided on both sides of the gas collecting cylinder (20). The conveying protection assembly includes a bidirectional threaded rod (8) and a rotating rod (14). The two ends of the bidirectional threaded rod (8) are rotatably mounted on the outside of one side of the cavity cover (4) via a rotating seat. The rotating rod (14) is rotatably mounted inside the bottom end of the cavity cover (4). The bidirectional threaded rod (8) and the rotating rod (14) are arranged vertically.

2. The new energy vehicle production component conveying device according to claim 1, characterized in that: The conveyor belt (2) has conveyor rollers (34) attached to both ends of the conveyor belt (2). Both ends of the conveyor rollers (34) are rotated through and engaged on one side of the cavity cover (4). A control motor (35) is fixedly installed on one side of the conveyor frame (1). The output end of the control motor (35) is coaxially fixed with one end of the conveyor roller (34).

3. The new energy vehicle production component conveying device according to claim 1, characterized in that: A stepper motor (9) is fixedly installed on one side of the cavity cover (4) by a bracket. The output end of the stepper motor (9) is coaxially fixed with one end of the bidirectional threaded rod (8). Each sealing cover (7) is fixedly installed with a limit block (10) on the side near the bottom end of the bidirectional threaded rod (8). The bottom end of the limit block (10) is threaded through and installed on one side of the bidirectional threaded rod (8).

4. A new energy vehicle production component conveying device according to claim 3, characterized in that: Each of the sealing cover plates (7) has a guide block (12) fixedly installed on the bottom side away from the limiting block (10). A guide rod (11) is slidably installed through the bottom end of the guide block (12). Both ends of the guide rod (11) are fixedly installed on the outside of one side of the cavity cover (4) by a bracket.

5. A new energy vehicle production component conveying device according to claim 1, characterized in that: One end of the rotating rod (14) is fixedly installed with a worm gear (15), and the middle position of the bidirectional threaded rod (8) is fixedly installed with a worm (13). One side of the worm (13) is meshed with one side of the worm gear (15). Both sides of the rotating rod (14) near the bottom edge of the placement box (5) are fixedly installed with pull rods (16).

6. A new energy vehicle production component conveying device according to claim 5, characterized in that: The end of the pull rod (16) away from the rotating rod (14) is rotatably mounted with a connecting frame (17), and the end of the connecting frame (17) away from the pull rod (16) is rotatably mounted with a positioning seat (18). The top of the positioning seat (18) is fixedly mounted on the outside of the bottom side of the placement box (5).

7. A new energy vehicle production component conveying device according to claim 1, characterized in that: A positioning frame (21) is fixedly installed at the top of the gas collecting cylinder (20). The top of the positioning frame (21) is fixedly installed on the outside of the bottom side of the placement box (5). A piston rod (19) is vertically and slidingly sealed inside the bottom of the gas collecting cylinder (20). The bottom of the piston rod (19) is fixedly installed on the bottom wall of the cavity cover (4). A one-way air inlet valve pipe (22) is fixedly installed through the top of the gas collecting cylinder (20). A spring compression conductor (23) is fixedly installed on the outside of the bottom side of the cavity cover (4). The output end of the spring compression conductor (23) is connected and fixedly connected to the input end of the one-way air inlet valve pipe (22). A contact block (36) is fixedly installed on the outside of the cavity cover (4) near the top of the spring compression conductor (23).

8. A new energy vehicle production component conveying device according to claim 7, characterized in that: A first pressing valve (24) is fixedly installed on the top side of the conveyor frame (1) away from the glue application assembly (3). The input end of the first pressing valve (24) is connected to a connecting pipe (25). A gas storage tank (26) is fixedly installed on the bottom side of the conveyor frame (1). The input end of the connecting pipe (25) is sealed and fixed inside the gas storage tank (26) on one side.

9. A new energy vehicle production component conveying device according to claim 1, characterized in that: The air injection assembly includes an inflatable airbag (28) and a jet nozzle (32). The inflatable airbag (28) is adhered and fixed to the outside of the bottom side of the placement box (5). The jet nozzle (32) is fixedly installed outside the top corner of the placement box (5). A one-way exhaust valve pipe (27) is fixedly installed through one side of the inflatable airbag (28). The output end of the one-way exhaust valve pipe (27) is fixedly installed through the inside of the top side of the air collecting cylinder (20). A positioning pipe (29) is fixedly installed through the side of the inflatable airbag (28) away from the one-way exhaust valve pipe (27). The positioning pipe (29) is fixedly installed outside the bottom side of the placement box (5) by a bracket.

10. A new energy vehicle production component conveying device according to claim 9, characterized in that: A second press valve (30) is fixedly and continuously connected to one side of the positioning tube (29). A diverter pipe (31) is fixedly and continuously connected to the output end of the second press valve (30). The output end of the diverter pipe (31) is fixedly and continuously connected to the input end of the jet head (32). A squeezing block (33) is fixedly installed on the inner wall of the cavity cover (4) near the bottom end of the second press valve (30). The pressing trigger end of the second press valve (30) is located on the side facing the squeezing block (33).