A flow battery stack gasket suction device
By designing a gasket suction device for flow battery stacks and employing shape-adaptive suction devices and vacuum suction technology, the problem of inconsistent gasket assembly was solved, enabling automated production and efficient assembly of the stacks.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- KAIFENG SHIDAI NEW ENERGY TECH CO LTD
- Filing Date
- 2025-08-15
- Publication Date
- 2026-06-05
AI Technical Summary
In the current assembly process of flow battery stack sealing gaskets, inconsistent quality due to manual assembly and low level of automation, as well as uneven suction by vacuum nozzles, lead to low production efficiency and quality problems.
A flow battery stack sealing gasket suction device is designed, which uses a suction cup adapted to the shape of the sealing gasket, combined with a rubber layer, air holes and a vacuum generator, to achieve stable adsorption and movement through guide columns and a feed cylinder, ensuring the flatness and firmness of the sealing gasket.
This improved the gasket extraction efficiency and assembly accuracy, enabled automated production of fuel cell stacks, and ensured the stability and consistency of fuel cell stack assembly.
Smart Images

Figure CN224324748U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of flow battery assembly equipment, specifically relating to a flow battery stack sealing gasket suction device. Background Technology
[0002] Currently, there are two main types of assembly processes in flow battery stacking: manual assembly and equipment-assisted assembly. The gaskets can be picked up manually or using vacuum nozzles. With the continuous development of flow batteries, the demand for stack production has increased, and simple manual assembly can no longer meet the growing production volume. The current solution is to recruit a large number of workers and provide them with formal training. Production managers then group qualified personnel to complete the large-scale stacking work. Because the gaskets are relatively soft, they are prone to curling and wrinkling under natural conditions, posing a significant challenge to automated stacking. Therefore, the current stacking process for flow battery stacks still relies heavily on manual labor. Manual assembly involves operators laying the gaskets flat according to standard assembly procedures, stacking them in the appropriate positions, and securing them with locating pins. If the gaskets become misaligned or wrinkled during assembly, the operators handle the issue on-site. While this assembly method can increase production capacity in the short term, the assembly quality can vary due to differences in the skill level of the operators. This can lead to inconsistent assembly quality, easily causing quality problems such as leakage of the flow battery stack and low battery efficiency. This introduces uncontrollability into the entire production process, resulting in questionable production quality and significantly impacting the overall output of the stack, thus greatly limiting the development of the entire flow battery industry.
[0003] Currently, vacuum nozzles are typically installed at intervals. During the suction process, a "sinking" phenomenon occurs between adjacent vacuum nozzles, causing unevenness and creating uncertainty in the positioning of the next stacked sheet. This necessitates on-site operators to perform stacking corrections. This process still requires some manual intervention for stacking, and the influence of human factors remains. Utility Model Content
[0004] To address the shortcomings of existing technologies, this utility model aims to provide a flow battery stack sealing gasket suction device. This device can improve the suction efficiency of flow battery stack sealing gaskets, make the gasket adsorption more reliable, and ensure the flatness of the gaskets, thereby significantly improving the assembly efficiency of flow battery stacks and ensuring assembly accuracy.
[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows:
[0006] A flow battery stack sealing gasket suction device includes a suction device whose shape is adapted to the shape of the sealing gasket. The suction device includes a horizontally arranged frame and a rubber layer, the rubber layer being fixedly installed at the bottom of the frame. A plurality of air holes are evenly distributed at the bottom of the rubber layer. An air inlet valve is installed on the frame, and the air holes are connected to a vacuum generator through the air inlet valve. The top of the frame is slidably mounted on a production line moving module via a guide rail. A lifting drive assembly connected to the production line moving module is also installed above the frame.
[0007] Preferably, a one-way valve is installed inside the vent.
[0008] Preferably, the suction cup is in the shape of a square frame.
[0009] Preferably, the rubber layer is a rubber foam sponge pad with a certain thickness.
[0010] Preferably, the guide rail includes a guide post vertically fixed above the frame, and the guide post is slidably fitted into a sliding hole opened on the moving module of the production line.
[0011] Preferably, there are four guide columns, which are fixed at the top four corners of the frame.
[0012] Preferably, a retainer is horizontally fixed at the center of the upper part of the frame, and the lifting drive assembly is connected to the retainer.
[0013] Preferably, the lifting drive assembly includes a vertically arranged feed cylinder, which is vertically mounted on the production line moving module, and the actuating part of the feed cylinder is connected to the retainer.
[0014] Preferably, two feed cylinders are provided symmetrically on the left and right sides.
[0015] The beneficial effects of this utility model are as follows:
[0016] 1. The frame above the suction device of this application can be a steel frame structure, which can provide stable support. The rubber layer below is made of rubber foam sponge with a certain thickness. When the rubber foam sponge comes into contact with the fuel cell stack sealing gasket, it can achieve soft contact with the fuel cell stack sealing gasket, avoiding damage to the fuel cell stack sealing gasket. In addition, the bottom of the rubber foam sponge has a certain flatness, which can maintain the flatness of the fuel cell stack sealing gasket after adsorption, effectively avoiding wrinkles, skewing and other problems, and ensuring the accuracy of fuel cell stack assembly.
[0017] 2. When the vacuum generator of this application is activated, it can provide suction negative pressure at the pores. The evenly distributed pores can ensure the adsorption stability of the fuel cell stack sealing gasket, avoid the problem of sealing gasket sinking in the prior art, and ensure the flatness of adsorption.
[0018] 3. This application provides effective sliding limits for the vertical sliding of the suction cup through the guide post at the top of the frame, thereby ensuring the stability of the suction cup when it moves up and down.
[0019] 4. This application uses the action of two feed cylinders to drive the suction device to move steadily up and down, thereby realizing the gripping action of the fuel cell stack sealing gasket and improving the fuel cell stack assembly efficiency. Attached Figure Description
[0020] Figure 1 This is a schematic diagram of the structure of this utility model.
[0021] Reference numerals: 1. Guide post; 2. Suction cup; 21. Frame; 22. Rubber layer; 220. Air hole; 3. Inlet valve; 4. Cage; 5. Feed cylinder; 6. Sealing gasket. Detailed Implementation
[0022] The principles and features of this utility model are described below with reference to the accompanying drawings. The examples given are only for explaining this utility model and are not intended to limit the scope of application of this utility model.
[0023] like Figure 1 As shown, this utility model proposes a flow battery stack sealing gasket suction device, including a suction device 2. The suction device 2 adopts a square frame shape adapted to the shape of the sealing gasket 6, thereby ensuring the firmness of the sealing gasket 6 adsorption. The suction device 2 includes a horizontally arranged frame 21 and a rubber layer 22, with the rubber layer 22 fixedly installed at the bottom of the frame 21.
[0024] The frame 21 above the suction device 2 of this application can be a steel frame structure, which can play a stable supporting role. The rubber layer 22 below is a rubber foam sponge pad with a certain thickness. When the rubber foam sponge pad comes into contact with the fuel cell stack sealing gasket 6, it can achieve soft contact with the fuel cell stack sealing gasket 6, avoiding damage to the fuel cell stack sealing gasket 6. In addition, the bottom of the rubber foam sponge pad has a certain flatness, which can maintain the flatness of the fuel cell stack sealing gasket 6 after adsorbing it, effectively avoiding wrinkles, skewing and other problems, and ensuring the accuracy of fuel cell stack assembly.
[0025] The bottom of the rubber layer 22 is evenly provided with several air holes 220, and an air inlet valve 3 is installed on the frame 21. The air holes 220 are connected to the vacuum generator through the air inlet valve 3.
[0026] When the vacuum generator of this application is activated, it can provide suction negative pressure at the air holes 220. The evenly distributed air holes 220 can ensure the adsorption stability of the fuel cell stack sealing gasket 6, avoid the problem of the sealing gasket 6 sinking in the prior art, and ensure the adsorption flatness.
[0027] In addition, a one-way valve is installed inside the vent 220 in this application. During negative pressure suction, the one-way valve can ensure one-way gas flow, thereby effectively improving the stability and firmness of the gasket 6 suction.
[0028] The top of frame 21 is slidably mounted on the production line moving module via guide rails. Specifically, the guide rails include guide posts 1 vertically fixed above frame 21, and the guide posts 1 are slidably fitted into sliding holes opened on the production line moving module. In this embodiment, there are four guide posts 1, which are fixed at the four corners of the top of frame 21 respectively.
[0029] This application uses the guide post 1 at the top of the frame 21 to provide effective sliding limit for the vertical sliding of the suction cup 2, thereby ensuring the stability of the suction cup 2 when it moves up and down.
[0030] A lifting drive assembly connected to the production line moving module is also installed above the frame 21. A retainer 4 is horizontally fixed in the middle of the upper part of the frame 21, and the lifting drive assembly is connected to the retainer 4. The lifting drive assembly includes a vertically arranged feed cylinder 5, which is vertically mounted on the production line moving module, and the actuating part of the feed cylinder is connected to the retainer 4. In this embodiment, two feed cylinders 5 are symmetrically arranged on the left and right sides.
[0031] This application uses the action of two feed cylinders 5 to drive the suction device 2 to move steadily up and down, thereby realizing the gripping action of the fuel cell stack sealing gasket 6 and improving the fuel cell stack assembly efficiency.
[0032] This utility model is practically applied to the gasket 6 suction station in an automated stacking production line for flow battery stacks. The specific principle is as follows: First, the production line's moving module transports this device above the gasket 6 feeding box. Then, the feeding cylinder 5 is activated, causing the suction cup 2 to move down to the gasket 6 loading position. The vacuum generator activates and opens the air inlet valve 3, adsorbing the gasket 6 below the suction cup 2. Finally, the production line's moving module transfers the gasket 6 to the stacking station. During actual assembly, to ensure assembly accuracy, a vision positioning system can be added after the stacking station for positioning correction. Compared with existing technologies, this application enables automated production of the gasket 6 in an automated stacking production line for flow battery stack raw material gaskets, improving assembly efficiency, ensuring assembly accuracy, and playing a crucial role in the promotion of flow battery technology.
[0033] Obviously, the embodiments described above are only some embodiments of this application, not all embodiments. The accompanying drawings show preferred embodiments of this application, but do not limit the patent scope of this application. This application can be implemented in many different forms; rather, the purpose of providing these embodiments is to provide a more thorough and comprehensive understanding of the disclosure of this application. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing specific embodiments, or make equivalent substitutions for some of the technical features. Any equivalent structures made using the content of this application's specification and drawings, directly or indirectly applied to other related technical fields, are similarly within the scope of patent protection of this application.
Claims
1. A flow battery stack sealing gasket suction device, comprising a suction device, characterized in that: The shape of the suction device is adapted to the shape of the sealing gasket. The suction device includes a horizontally arranged frame and a rubber layer. The rubber layer is fixedly installed at the bottom of the frame. Several air holes are evenly distributed at the bottom of the rubber layer. An air inlet valve is installed on the frame. The air holes are connected to a vacuum generator through the air inlet valve. The top of the frame is slidably installed on the production line moving module via a guide rail. A lifting drive assembly connected to the production line moving module is also installed above the frame.
2. The flow battery stack sealing gasket suction device according to claim 1, characterized in that: A one-way valve is installed inside the vent.
3. The flow battery stack sealing gasket suction device according to claim 1, characterized in that: The suction device is square-shaped.
4. The flow battery stack sealing gasket suction device according to claim 1, characterized in that: The rubber layer is made of rubber foam sponge pad with a certain thickness.
5. The flow battery stack sealing gasket suction device according to claim 1, characterized in that: The guide rail includes a guide post that is vertically fixed above the frame, and the guide post is slidably fitted into a sliding hole opened on the moving module of the production line.
6. The flow battery stack sealing gasket suction device according to claim 5, characterized in that: The guide pillars are four in number and are fixed at the four top corners of the frame.
7. The flow battery stack sealing gasket suction device according to claim 1, characterized in that: A retainer is horizontally fixed at the center of the upper part of the frame, and the lifting drive assembly is connected to the retainer.
8. The flow battery stack sealing gasket suction device according to claim 7, characterized in that: The lifting drive assembly includes a vertically arranged feed cylinder, which is vertically mounted on the production line moving module. The actuating part of the feed cylinder is connected to the retainer.
9. The flow battery stack sealing gasket suction device according to claim 8, characterized in that: The feed cylinders are provided symmetrically on the left and right sides.