A surface impregnation coating device for composite yarn organic conductive fiber

Abstract

The utility model relates to a surface impregnation coating device of conductive fiber, specifically is a surface impregnation coating device of composite yarn organic conductive fiber, including work table, the support beam of fixed setting at work table bottom, through the integration and the programmed design, the technological efficiency and quality of conductive fiber pretreatment and coating have been improved significantly, its core innovation lies in the linkage integration of mobile bin, lifting mechanism, solution storage mechanism and organic solvent pool, realize a set of continuous, sequential processing of conductive fiber in the process, when the lifting mechanism drives the mobile bin loaded fiber to descend, can linkage open the valve, make the polydopamine solution preferentially precoat the fiber, form the firm adhesion layer, then the mobile bin is immersed in the organic solvent pool at the bottom again, this sequential execution process ensures that the fiber surface has completed the polydopamine adhesion layer construction and the deep cleaning of organic solvent in turn before the impregnation of conductive ink.

Description

Technical Field

[0001] This utility model relates to a surface impregnation and coating device for conductive fibers, specifically a surface impregnation and coating device for composite yarn organic conductive fibers. Background Technology

[0002] Composite yarn organic conductive fiber is a functional yarn material made by blending organic conductive materials (such as conductive polymers like polyaniline and polypyrrole, or carbon-based conductive components like carbon nanotubes and graphene) with conventional textile fibers such as cotton, polyester, and nylon through composite spinning processes such as blending, core-spun spinning, and twisting. It retains the soft, breathable, and woven characteristics of conventional fibers while possessing the stable conductivity imparted by organic conductive components. It can also generate additional functions such as antistatic properties, electromagnetic shielding, and sensing detection. It is widely used in scenarios such as antistatic industrial clothing for smart wearable devices and electromagnetic protection fabrics in the electronic information field, realizing the integration of textile materials and conductive functions.

[0003] Surface impregnation coating of conductive fibers is a processing technology that imparts conductive properties to the surface of conventional textile fibers (such as polyester, nylon, cotton, etc.). Specifically, an organic conductive substance is dispersed or dissolved in a solvent to prepare a conductive coating solution. The substrate fiber is then completely immersed in the coating solution for impregnation, allowing the conductive substance to adhere evenly to the fiber surface. Subsequently, steps such as drying and heat curing are performed to ensure that the conductive layer is tightly bonded to the fiber and does not easily fall off. This process can flexibly impart conductive properties to the substrate fiber while retaining its original softness, breathability, and weavability. Furthermore, the thickness of the conductive layer and the conductive effect can be controlled by adjusting the concentration of the coating solution and the number of impregnations. It is commonly used in the production of antistatic fabrics, simple sensing fibers, and other applications.

[0004] Before impregnating conductive materials, conductive fibers typically require surface treatment, such as pretreatment with an adhesive spray (e.g., polydopamine) to enhance the bond between the conductive material and the fibers. This step helps improve the adhesion of subsequent coatings.

[0005] Existing technologies for surface impregnation and coating pretreatment of substrate fibers typically suffer from inherent drawbacks such as fragmented processes, cumbersome operations, and unstable quality. Specifically, traditional step-by-step processing methods require operators to transfer and soak fibers multiple times between separate equipment or containers. This discontinuous operation is not only inefficient and labor-intensive, but also highly susceptible to secondary contamination due to fiber exposure to the external environment during transfer, or accidental damage to the already formed polydopamine adhesion layer. Furthermore, step-by-step processing makes it difficult to precisely control the timing and conditions between each step, resulting in inconsistent fiber surface cleanliness and adhesion layer quality. Ultimately, this leads to uneven adhesion of the subsequent conductive coating, large fluctuations in product performance, and difficulty in guaranteeing yield, thus hindering the large-scale and consistent production of high-performance conductive fibers. Summary of the Invention

[0006] The purpose of this invention is to provide a surface impregnation and coating device for composite yarn organic conductive fibers to solve the problems mentioned in the background art.

[0007] To achieve the above objectives, this utility model provides the following technical solution: A surface impregnation coating device for composite yarn organic conductive fibers includes a workbench, a support beam fixedly disposed at the bottom of the workbench, and guide columns disposed at both ends of the support beam. An organic solvent pool is connected to the top of the workbench, and a movable chamber is disposed above the organic solvent pool. A filter plate is disposed at the bottom of the movable chamber. A cylinder and a telescopic rod disposed on the cylinder are connected to the top of the support beam. A support base and a solution storage mechanism disposed on the top of the support base are connected to the bottom two ends of the support base. The solution supply mechanism is connected to the solution storage mechanism, and a valve mechanism is rotatably installed inside the solution supply mechanism.

[0008] The surface impregnation and coating device for composite yarn organic conductive fibers as described above: the solution storage mechanism includes a material tank connected to both ends of the support base and a guide pipe connected to one end of the material tank, and the two ends of the support base are respectively slidably mounted on the guide columns at both ends of the support beam.

[0009] The surface impregnation coating device for composite yarn organic conductive fibers as described above: the solution supply mechanism includes two cylinders connected to the bottom of the support base and a flow channel opened inside the support base, and one end of the cylinder is connected to a solution spray pipe.

[0010] The surface impregnation coating device for composite yarn organic conductive fibers as described above: the valve mechanism includes a rotating disk rotatably installed in the cylinder and a groove formed on the rotating disk, the groove cooperating with the flow channel.

[0011] The surface impregnation and coating device for composite yarn organic conductive fibers as described above: the feed tube is connected to the rear end of the cylinder, and the feed tube corresponds to the flow channel.

[0012] The surface impregnation coating device for composite yarn organic conductive fibers as described above: the valve mechanism further includes transmission teeth connected to the rotating disk, and the transmission teeth on the two rotating disks respectively mesh with two racks fixed on the top of the worktable.

[0013] The surface impregnation and coating device for composite yarn organic conductive fibers as described above: the bottom of the support base is connected to two outward expansion plates, and the two outward expansion plates are squeezed into the same movable chamber.

[0014] Compared with the prior art, the beneficial effects of this utility model are: Through integrated and programmed design, the efficiency and quality of substrate fiber pretreatment and coating processes are significantly improved. Its core innovation lies in the coordinated integration of the moving chamber, lifting mechanism, polydopamine solution storage mechanism, and organic solvent pool, achieving continuous and sequential processing of conductive fibers within a single process. During operation, the lifting mechanism, while driving the fiber-loaded moving chamber downwards, simultaneously opens valves, allowing the pretreatment solution to preferentially pre-coat the fibers, forming a strong adhesive layer. Subsequently, the moving chamber is completely immersed in the organic solvent pool at the bottom. This sequential execution process ensures that before the conductive ink is impregnated, the fiber surface has sequentially completed the construction of the pretreatment liquid adhesive layer and deep bonding with the organic solvent, thereby greatly enhancing the adhesion and uniformity of the subsequent conductive functional layer to the fiber matrix, effectively preventing coating peeling, and ultimately endowing the conductive fibers with superior and more durable conductive properties.

[0015] This utility model achieves semi-automatic operation of the entire process through the linkage of lifting mechanism and valve, reducing operational errors caused by manual intervention and improving processing efficiency. At the same time, the detachable design of the mobile compartment facilitates the batch loading and unloading of conductive fibers, adapting to the processing needs of fibers of different specifications, and providing convenient and efficient equipment support for the industrial continuous production of conductive fiber surface modification. Attached Figure Description

[0016] Figure 1 This is a front view schematic diagram of a device for impregnating and coating the surface of composite yarn organic conductive fibers.

[0017] Figure 2 This is a side view schematic diagram of the surface impregnation coating device for composite yarn organic conductive fibers.

[0018] Figure 3 This is a top view schematic diagram of the surface impregnation coating device for composite yarn organic conductive fibers.

[0019] Figure 4 This is a top view of the non-operating structure of the surface impregnation coating device for composite yarn organic conductive fibers.

[0020] Figure 5 This is a schematic diagram of the axial structure in the surface impregnation coating device for composite yarn organic conductive fibers.

[0021] Figure 6 A schematic diagram of the cylinder, solution storage mechanism, solution supply mechanism, and valve mechanism in the surface impregnation coating device for composite yarn organic conductive fibers.

[0022] Figure 7 This is a schematic diagram of the solution storage mechanism, solution supply mechanism, and valve mechanism in a surface impregnation coating device for composite yarn organic conductive fibers.

[0023] Figure 8 A schematic diagram of the solution supply mechanism and valve mechanism in a surface impregnation coating device for composite yarn organic conductive fibers.

[0024] Figure 9 This is a cross-sectional schematic diagram of the solution supply mechanism and valve mechanism in a surface impregnation coating device for composite yarn organic conductive fibers.

[0025] Figure 10 This is a schematic diagram of the organic solvent pool and moving chamber structure in the surface impregnation coating device for composite yarn organic conductive fibers.

[0026] In the diagram: 1. Workbench; 2. Support beam; 3. Guide column; 4. Organic solvent tank; 5. Moving chamber; 6. Cylinder; 7. Telescopic rod; 8. Support base; 9. Outer expansion plate; 10. Material bucket; 11. Material guide pipe; 12. Cylinder; 13. Flow channel; 14. Solution spray pipe; 15. Rotary disk; 16. Tank; 17. Transmission gear; 18. Rack. Detailed Implementation

[0027] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0028] Please see Figures 1-10 As an embodiment of this utility model, the surface impregnation coating device for composite yarn organic conductive fibers includes a workbench 1 and a support beam 2 fixedly disposed at the bottom of the workbench 1. It also includes guide columns 3 disposed at both ends of the support beam 2. An organic solvent pool 4 and a movable chamber 5 disposed above the organic solvent pool 4 are connected to the top of the workbench 1. A filter plate is disposed at the bottom of the movable chamber 5. A cylinder 6 and a telescopic rod 7 disposed on the cylinder 6 are connected to the top of the support beam 2. A support base 8 and a solution storage mechanism disposed at the top of the support base 8 are connected to the bottom two ends of the support base 8. The solution supply mechanism is connected to the solution storage mechanism. A valve mechanism is rotatably installed inside the solution supply mechanism.

[0029] In this embodiment, during use, organic solvent is introduced into the organic solvent pool 4, and then conductive fibers are placed on the filter plate at the bottom of the moving chamber 5. At this time, the moving chamber 5 is fixed to the bottom of the support base 8. Then, the cylinder 6 can be activated, and the moving chamber 5 slowly moves downward. When the moving chamber 5 carrying the fibers descends and approaches the organic solvent pool 4, the solution supply mechanism and the valve mechanism work together to open the channel inside the solution supply mechanism. Then, the solution supply mechanism atomizes the pretreatment solution inside and introduces it into the moving chamber 5, so that the pretreatment solution preferentially pre-coats the fibers to form a strong adhesion layer. Then, the moving chamber 5 is completely immersed in the organic solvent pool 4 at the bottom, ensuring that the fiber surface has completed the construction of the adhesion layer and the deep bonding of the organic solvent before the conductive ink is impregnated. This greatly enhances the bonding force and uniformity between the subsequent conductive functional layer and the fiber matrix, effectively avoids coating peeling, and ultimately gives the conductive fibers better and more durable conductivity.

[0030] As a further embodiment of this utility model, the solution storage mechanism includes a material tank 10 connected to both ends of the support base 8 and a guide pipe 11 connected to one end of the material tank 10. The two ends of the support base 8 are respectively slidably mounted on the guide posts 3 at both ends of the support beam 2.

[0031] In this embodiment, the material tank 10 is used to temporarily store the pretreatment solution. One end of each of the two material tanks 10 is connected to a guide pipe 11, and the material tanks 10 move synchronously with the support base 8.

[0032] As a further embodiment of the present invention, the solution supply mechanism includes two cylinders 12 connected to the bottom of the support base 8 and a flow channel 13 opened inside the support base 8, with a solution spray pipe 14 connected to one end of each cylinder 12.

[0033] In this embodiment, the cylinder 12 is connected to the feed pipe 11, and the feed pipe 11 is provided with a flow channel 13. The solution spray pipe 14 cooperates with the flow channel 13, and the pretreatment solution can be introduced into the moving chamber 5 through the solution spray pipe 14.

[0034] As a further embodiment of this utility model, the valve mechanism includes a rotating disk 15 rotatably installed inside the cylinder 12 and a groove 16 formed on the rotating disk 15, wherein the groove 16 cooperates with the flow channel 13.

[0035] In this embodiment, the rotating disk 15 is rotatably mounted on the cylinder 12, and the trough 16 corresponds to the flow channel 13.

[0036] As a further embodiment of this utility model, the guide pipe 11 is connected to the rear end of the cylinder 12, and the guide pipe 11 corresponds to the flow channel 13.

[0037] In this embodiment, the feed pipe 11 is fixed at the rear end of the cylinder 12, and the feed pipe 11 corresponds to the flow channel 13 at the rear end of the cylinder 12, so that the pretreatment solution can be introduced into the flow channel 13.

[0038] As a further embodiment of this utility model, the valve mechanism also includes transmission teeth 17 connected to the rotating disk 15, and the transmission teeth 17 on the two rotating disks 15 respectively mesh with two racks 18 fixed on the top of the workbench 1.

[0039] In this embodiment, transmission teeth 17 are connected to the periphery of the rotating disk 15, and two racks 18 are provided on the top of the worktable 1. The two racks 18 mesh with the transmission teeth 17 on the two rotating disks 15 respectively.

[0040] As a further embodiment of this utility model, the bottom of the support base 8 is connected to two outward expansion plates 9, which are in a compression fit with the same movable compartment 5.

[0041] In this embodiment, when not in operation, the two expansion plates 9 tend to tilt outwards, and the expansion plates 9 are made of elastic material and have the characteristic of being elastically bendable. First, the movable chamber 5 is moved from the direction of the two expanding plates 9. During this process, the expanding plates 9 will be squeezed inward by the inner wall of the movable chamber 5 and bend elastically. When the movable chamber 5 is successfully installed outside the two expanding plates 9, the two expanding plates 9 will expand and fix the movable chamber 5 outward by elastic pre-tightening force. Then, as the support base 8 moves downward, the cylinder 12 will pass by one side of the rack 18. At this time, the rotating disk 15 will rotate by the transmission gear 17 as it passes by the rack 18, causing the position of the groove 16 of the rotating disk 15 to change. Then, through meshing transmission, the groove 16 of the rotating disk 15 rotates to the flow channel 13, so that the flow channel 13 is in a smooth state. At this time, the pretreatment solution will flow through the flow channel 13 and the groove 16 into the solution spray pipe 14, and then be sprayed by two solution spray pipes. The tube 14 atomizes the pretreatment solution and evenly coats it onto the conductive fiber to form a strong adhesion layer. Then, the moving chamber 5 carries the conductive fiber and completely immerses it in the bottom organic solvent pool 4. This ensures that the fiber surface has completed the construction of the adhesion layer and the deep bonding of the organic solvent before the conductive ink is impregnated. This greatly enhances the bonding force and uniformity between the subsequent conductive functional layer and the fiber matrix, effectively preventing the coating from falling off. Ultimately, this gives the conductive fiber better and more durable conductivity. After the work is completed, the support 8 returns to its original position, and then the two outer expansion plates 9 separate from the two outer covers. At the same time, the transmission teeth 17 on the rotating disk 15 mesh with the rack 18 again, causing the rotating disk 15 to rotate. The tank 16 leaves the flow channel 13, making the flow channel 13 closed.

[0042] The above embodiments are exemplary and not restrictive. Therefore, without departing from the spirit or basic characteristics of this utility model, any technical solutions that can be implemented in other specific forms are included in this utility model.

Claims

1. A surface impregnation coating device for composite yarn organic conductive fibers, comprising a worktable (1), a support beam (2) fixedly disposed at the bottom of the worktable (1), and guide posts (3) disposed at both ends of the support beam (2), characterized in that, The top of the workbench (1) is connected to an organic solvent pool (4) and a movable chamber (5) located above the organic solvent pool (4). A filter plate is provided at the bottom of the movable chamber (5). The top of the support beam (2) is connected to a cylinder (6) and a telescopic rod (7) located on the cylinder (6). The bottom end of the telescopic rod (7) is connected to a support base (8) and a solution storage mechanism located on the top of the support base (8). Both ends of the bottom of the support base (8) are connected to a solution supply mechanism. The solution supply mechanism is connected to the solution storage mechanism. A valve mechanism is rotatably installed inside the solution supply mechanism.

2. The surface impregnation and coating device for composite yarn organic conductive fibers according to claim 1, characterized in that, The solution storage mechanism includes a material tank (10) connected to both ends of the support base (8) and a guide pipe (11) connected to one end of the material tank (10). The two ends of the support base (8) are respectively slidably mounted on the guide posts (3) at both ends of the support beam (2).

3. The surface impregnation and coating device for composite yarn organic conductive fibers according to claim 2, characterized in that, The solution supply mechanism includes two cylinders (12) connected to the bottom of the support (8) and a flow channel (13) opened inside the support (8). One end of the cylinder (12) is connected to a solution nozzle (14).

4. The surface impregnation and coating device for composite yarn organic conductive fibers according to claim 3, characterized in that, The valve mechanism includes a rotating disk (15) rotatably installed inside the cylinder (12) and a groove (16) formed on the rotating disk (15), the groove (16) cooperating with the flow channel (13).

5. The surface impregnation and coating device for composite yarn organic conductive fibers according to claim 4, characterized in that, The feed pipe (11) is connected to the rear end of the cylinder (12), and the feed pipe (11) corresponds to the flow channel (13).

6. The surface impregnation and coating device for composite yarn organic conductive fibers according to claim 5, characterized in that, The valve mechanism also includes transmission teeth (17) connected to the rotating disk (15), and the transmission teeth (17) on the two rotating disks (15) respectively mesh with two racks (18) fixed on the top of the workbench (1).

7. The surface impregnation and coating device for composite yarn organic conductive fibers according to claim 6, characterized in that, The bottom of the support base (8) is connected to two expansion plates (9), which are squeezed into the same mobile compartment (5).

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