A ro membrane cartridge assembly apparatus
By integrating a vibration fiber arrangement module, a tension feedback system, and an infrared welder, the RO membrane core assembly equipment solves the problems of filament orientation and tension uniformity control, improves the quality and efficiency of membrane core assembly, and achieves highly efficient automated production.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- JIANGSU HEER MEMBRANE TECHNOLOGY CO LTD
- Filing Date
- 2025-07-17
- Publication Date
- 2026-06-02
AI Technical Summary
In the current RO membrane core assembly process, it is difficult to achieve the orientation and uniform tension control of membrane fibers, resulting in uneven winding and frequent breakage. Traditional fixing methods are inefficient and unstable, making it difficult to meet the needs of high-efficiency and high-quality production.
Design an RO membrane core assembly device that integrates a vibration fiber arrangement module, a tension feedback system, and an infrared welder. The device achieves directional alignment of membrane fibers through vibration and a guiding structure, monitors and adjusts tension in real time, and uses an infrared welder for efficient fixation.
This technology enables directional alignment and uniform stress distribution of membrane filaments, reduces the probability of breakage, improves product qualification rate and assembly efficiency, and solves the problems of automation and stability in membrane core assembly.
Smart Images

Figure CN224311186U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of RO membrane core assembly technology, and specifically relates to an RO membrane core assembly device. Background Technology
[0002] The RO membrane core is the core structural component of the RO reverse osmosis membrane element, typically made of materials such as plastic. It provides support and fixation for the membrane, ensuring a stable structural shape during operation. Functionally, the RO membrane core has a multi-layered microporous structure composed of numerous membrane fibers, each with nanometer-sized pores. During reverse osmosis, with the aid of external pressure, water flows from the high-concentration side (containing impurities) to the low-concentration side (pure water). Bacteria, colloids, salts, and other impurities are blocked because they cannot pass through the pores of the membrane fibers, while small molecules such as water molecules pass through smoothly, thus purifying the water and producing high-purity water. RO membrane cores are widely used in various reverse osmosis water treatment equipment, such as household water purifiers, commercial drinking water systems, industrial ultrapure water production, and seawater desalination, and are a key component for ensuring water quality purification.
[0003] Currently, the assembly of RO membrane cores relies heavily on manual operation. Manually arranging the membrane fibers makes it difficult to ensure their orientation, leading to frequent problems like fiber crossing and entanglement, which affect the performance and quality of the membrane core. In the fiber winding stage, precise control of winding tightness is difficult, resulting in uneven stress on the fibers and a tendency for fiber breakage, reducing the product yield. Furthermore, traditional methods for fixing the membrane bundle ends are inefficient and produce inconsistent results. While some existing automated equipment can partially automate the assembly process, the lack of effective linkage between functional modules fails to fundamentally solve key issues such as fiber orientation, uniform tension control, and efficient fixing of the membrane bundle ends. This makes it difficult to meet the demands of efficient and high-quality RO membrane core production. Therefore, we need to upgrade and transform existing technologies. Utility Model Content
[0004] The purpose of this invention is to provide an RO membrane core assembly device to solve the problems mentioned in the background art.
[0005] To solve the above problems, the following technical solutions are provided:
[0006] Design an RO membrane core assembly device, including a device body with a worktable on the device body, and a vibration fiber-sorting module set on the worktable, including a vibration platform, an inclined fiber-sorting groove, an ultrasonic vibration roller, parallel comb teeth, a guide roller and a vibration motor, a winding rotary table set on the worktable, including a circular table and a membrane fiber fixing clamp, a tension feedback system set on the worktable, including a mounting frame, a tension sensor and a pneumatic tension adjusting arm, an infrared welder including a fixing plate, a rotating seat, a robotic arm and a heating head, and a membrane fiber unwinding frame including a fixing frame, a retaining ring and an unwinding roller.
[0007] Furthermore, in the vibrating fiber-sorting module, an ultrasonic vibrating roller is installed at the top of the inclined fiber-sorting groove, parallel comb teeth are arranged inside the inclined fiber-sorting groove, a guide roller is installed at the bottom of the inclined fiber-sorting groove, and a vibration motor is connected to the vibration platform and drives its vibration.
[0008] Furthermore, in the tension feedback system, the tension sensor is mounted on a mounting bracket, and the pneumatic tension adjusting arm is connected to the tension sensor and controlled by its feedback signal.
[0009] Furthermore, in the infrared welder, the rotating base is mounted on the fixed plate, the robotic arm is connected to the rotating base and can rotate relative to it, and the heating head is mounted on the end of the robotic arm.
[0010] Furthermore, in the unwinding frame, the unwinding roller is mounted on the fixed frame via a retaining ring.
[0011] Furthermore, a support leg is fixedly provided under the workbench, and multiple sets of the support leg are provided.
[0012] Compared with the prior art, the beneficial effects of this utility model are as follows:
[0013] 1. This utility model, through a vibration fiber arrangement module, utilizes vibration and a guiding structure to effectively achieve the directional arrangement of membrane fibers, reduce the phenomenon of membrane fiber crossing and entanglement, and improve the quality and consistency of membrane core assembly.
[0014] 2. This utility model uses a tension feedback system to monitor and adjust the tension of the membrane fibers in real time, so that the membrane fibers are subjected to uniform force during winding, which greatly reduces the probability of membrane fibers breaking due to uneven force and improves the product qualification rate.
[0015] 3. This utility model uses an infrared welding device to quickly and accurately weld and fix the ends of the membrane bundle. Compared with traditional fixing methods, it is more efficient, has a more stable fixing effect, and avoids problems such as glue contamination.
[0016] 4. This equipment integrates functions such as unwinding, filament sorting, winding, tension control, and end welding of membrane fibers, realizing the automated process of RO membrane core assembly, reducing manual intervention, significantly improving the assembly efficiency of RO membrane cores, meeting the needs of mass production, and solving the technical problem of uneven stress on membrane fibers leading to easy breakage.
[0017] Specific embodiments of the present invention are disclosed in detail with reference to the following description and accompanying drawings, indicating how the principles of the present invention can be employed. It should be understood that the embodiments of the present invention are not limited in scope. Within the spirit and scope of the appended claims, the embodiments of the present invention include many changes, modifications, and equivalents. Attached Figure Description
[0018] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:
[0019] Figure 1 This is a perspective view of the overall structure of an RO membrane core assembly device according to the present invention;
[0020] Figure 2 This is a schematic diagram of the vibration fiber arrangement module structure of an RO membrane core assembly device according to the present invention;
[0021] Figure 3 This is a schematic diagram of the winding rotary table structure and tension feedback system of an RO membrane core assembly equipment according to the present invention;
[0022] Figure 4 This is a schematic diagram of the infrared welding device structure of an RO membrane core assembly equipment according to the present invention;
[0023] Figure 5 This is a schematic diagram of the membrane fiber unwinding frame structure of an RO membrane core assembly device according to the present invention.
[0024] In the diagram: 1. Device body; 2. Workbench; 3. Support leg; 4. Vibration fiber winding module; 41. Vibration platform; 42. Inclined fiber winding groove; 43. Ultrasonic vibrating roller; 44. Parallel comb teeth; 45. Guide roller; 46. Vibration motor; 5. Winding rotary table; 51. Circular table; 52. Film fiber fixing clamp; 6. Tension feedback system; 61. Mounting frame; 62. Tension sensor; 63. Pneumatic tension adjusting arm; 7. Infrared welder; 71. Fixing plate; 72. Rotating seat; 73. Robotic arm; 74. Heating head; 8. Film fiber unwinding frame; 81. Fixing frame; 82. Clamping ring; 83. Unwinding roller. Detailed Implementation
[0025] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.
[0026] like Figure 1 As shown in Figure 5, this embodiment provides an RO membrane core assembly device, including a device body 1, a workbench 2 on the device body 1, and a vibration fiber-arranging module 4, which is set on the workbench 2 and includes a vibration platform 41, an inclined fiber-arranging groove 42, an ultrasonic vibration roller 43, parallel comb teeth 44, a guide roller 45 and a vibration motor 46. A winding rotary table 5 is set on the workbench 2 and includes a circular table 51 and a membrane fiber fixing clamp 52. A tension feedback system 6 is set on the workbench 2 and includes a mounting frame 61, a tension sensor 62 and a pneumatic tension adjusting arm 63. An infrared welder 7 includes a fixing plate 71, a rotating seat 72, a robotic arm 73 and a heating head 74. A membrane fiber unwinding frame 8 includes a fixing frame 81, a retaining ring 82 and an unwinding roller 83.
[0027] Preferably, in the vibrating fiber-sorting module 4, the ultrasonic vibrating roller 43 is installed at the top of the inclined fiber-sorting groove 42, the parallel comb teeth 44 are located inside the inclined fiber-sorting groove 42, the guide roller 45 is installed at the bottom of the inclined fiber-sorting groove 42, and the vibrating motor 46 is connected to the vibrating platform 41 and drives its vibration. The installation position and connection relationship of each component in the vibrating fiber-sorting module 4 are defined in detail, providing convenience for the user.
[0028] Preferably, in the tension feedback system 6, the tension sensor 62 is mounted on the mounting bracket 61, and the pneumatic tension adjusting arm 63 is connected to the tension sensor 62 and controlled by its feedback signal. This clarifies the connection relationship and control logic between the tension sensor 62 and the pneumatic tension adjusting arm 63 in the tension feedback system 6, and precisely defines the specific way in which the system realizes the membrane tension feedback adjustment function.
[0029] Preferably, in the infrared welder 7, the rotating base 72 is mounted on the fixed plate 71, the robotic arm 73 is connected to the rotating base 72 and can rotate relative to it, and the heating head 74 is mounted on the end of the robotic arm 73. The connection and cooperation relationship between the fixed plate 71, the rotating base 72, the robotic arm 73 and the heating head 74 in the infrared welder 7 are explained in detail, the mechanical structure of the component is clearly presented, and the applicability of the device is increased.
[0030] Preferably, in the unwinding frame 8, the unwinding roller 83 is mounted on the fixed frame 81 via the retaining ring 82. This specifically illustrates the installation relationship between the unwinding roller 83, the retaining ring 82, and the fixed frame 81 in the unwinding frame 8, making the structure of this component simple and clear, and increasing the practicality and convenience of the device.
[0031] Preferably, a support leg 3 is fixedly provided under the workbench 2. Multiple sets of support legs 3 are provided, which increases the stability of the device and ensures the safety of the device during use.
[0032] The working principle and process of this utility model are as follows: In use, the membrane filament roll is installed on the unwinding roller 83 of the membrane filament unwinding frame 8. The membrane filament is released from the unwinding roller 83 and enters the vibrating filament-arranging module 4. The vibrating motor 46 drives the vibrating platform 41 to vibrate, causing the inclined filament-arranging groove 42 to also vibrate. Within the inclined filament-arranging groove 42, the membrane filament is oriented and aligned under the auxiliary vibration of the ultrasonic vibrating roller 43 and the guiding action of the parallel comb teeth 44. Finally, it is guided out through the guide roller 45. One end of the oriented membrane filament is fixed to the membrane filament fixing clamp 52 of the winding rotary table 5. The circular table 51 rotates, causing the membrane filament to wind around the membrane core mold (not shown in the diagram), which can be installed at the membrane filament fixing clamp 52. During the membrane filament winding process, the tension feedback system 6 plays a role. When the membrane filament passes through the tension sensor 62, the tension sensor 62 detects the membrane filament tension in real time and feeds the signal back to the control system. When tension becomes abnormal, the control system drives the pneumatic tension adjusting arm 63 to adjust the membrane fiber tension, ensuring uniform tension during winding. Once the membrane fiber has been wound to the set number of turns, the infrared welder 7 starts working. The robotic arm 73, with the cooperation of the rotating base 72, moves to the end of the membrane bundle. The heating head 74 emits infrared radiation to heat and weld the end of the membrane bundle, achieving rapid fixation of the membrane bundle end.
[0033] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "front end," "rear end," "both ends," "one end," and "the other end," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element 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 this utility model. In addition, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.
[0034] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," "connected," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.
[0035] The present invention has been described above with reference to specific embodiments. However, those skilled in the art should understand that these descriptions are exemplary and not intended to limit the scope of protection of the present invention. Those skilled in the art can make various modifications and variations to the present invention based on its spirit and principles, and these modifications and variations are also within the scope of the present invention.
Claims
1. An RO membrane core assembly device, characterized in that, The device includes a main body (1), on which a worktable (2) is provided, and further includes: The vibrating fiber-sorting module (4) is set on the workbench (2) and includes a vibrating platform (41), an inclined fiber-sorting groove (42), an ultrasonic vibrating roller (43), parallel comb teeth (44), a guide roller (45) and a vibrating motor (46). A winding rotary table (5) is set on a worktable (2) and includes a circular table (51) and a membrane filament fixing clamp (52). The tension feedback system (6) is set on the workbench (2) and includes a mounting bracket (61), a tension sensor (62) and a pneumatic tension adjustment arm (63). The infrared fusion splicer (7) includes a fixed plate (71), a rotating base (72), a robotic arm (73), and a heating head (74); The unwinding frame (8) includes a fixing frame (81), a retaining ring (82), and an unwinding roller (83).
2. The RO membrane core assembly equipment according to claim 1, characterized in that, In the vibrating fiber-arranging module (4), the ultrasonic vibrating roller (43) is installed at the top of the inclined fiber-arranging groove (42), the parallel comb teeth (44) are located in the inclined fiber-arranging groove (42), the guide roller (45) is installed at the bottom of the inclined fiber-arranging groove (42), and the vibrating motor (46) is connected to the vibrating platform (41) and drives it to vibrate.
3. The RO membrane core assembly equipment according to claim 1, characterized in that, In the tension feedback system (6), the tension sensor (62) is mounted on the mounting bracket (61), and the pneumatic tension adjusting arm (63) is connected to the tension sensor (62) and controlled by its feedback signal.
4. The RO membrane core assembly equipment according to claim 1, characterized in that, In the infrared fusion splicer (7), the rotating seat (72) is mounted on the fixed plate (71), the robotic arm (73) is connected to the rotating seat (72) and can rotate relative to it, and the heating head (74) is mounted on the end of the robotic arm (73).
5. The RO membrane core assembly equipment according to claim 1, characterized in that, In the unwinding frame (8), the unwinding roller (83) is mounted on the fixed frame (81) by a retaining ring (82).
6. The RO membrane core assembly equipment according to claim 1, characterized in that, The workbench (2) is fixedly provided with support legs (3) below it, and the support legs (3) are provided in multiple sets.