A 3D printing flexible circuit preparation system based on composite hydrogel
The 3D printing flexible circuit fabrication system based on composite hydrogel has solved the problems of high cost and open circuit in inkjet printing of flexible electronic products, and has achieved efficient fabrication of three-dimensional flexible circuits, improving printing accuracy and reliability.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- NORTHWESTERN POLYTECHNICAL UNIV
- Filing Date
- 2022-08-09
- Publication Date
- 2026-04-28
AI Technical Summary
Existing inkjet-printed flexible electronic products suffer from drawbacks such as expensive inks and the tendency for open circuits to occur after printing, which limits their large-scale commercial use.
A 3D printing flexible circuit fabrication system based on composite hydrogel is adopted, including components such as the main body of the device, conveyor belt, stirring fan blade, heating device, ion oscillation box and 3D printing nozzle, to realize solution mixing, heating, ion oscillation and omnidirectional 3D printing to fabricate three-dimensional flexible circuits.
It enables efficient and convenient fabrication of three-dimensional flexible circuits, reducing usage costs and improving printing accuracy and reliability.
Smart Images

Figure CN115447130B_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of flexible circuit fabrication technology, and specifically discloses a 3D printing flexible circuit fabrication system based on composite hydrogel. Background Technology
[0002] Hydrogels are gels that use water as a dispersion medium and can exist in water without dissolving. As a special "soft material" with a three-dimensional network structure, hydrogels with a single solute have shortcomings in mechanical properties, thermal properties, response speed to external stimuli, conductivity, and biocompatibility, which seriously affects their application range. However, composite hydrogels can improve their performance in terms of mechanics, thermal properties, electrical properties, and biocompatibility for different application scenarios, greatly expanding the application fields of hydrogels. The rapid development of 3D printing technology (additive manufacturing technology) has provided new ideas for the multi-scale preparation of macroscopic graphene-based three-dimensional materials. The three-dimensional structure of graphene oxide materials can be manufactured using emerging 3D printing technology, including inkjet printing. Inkjet printing is a rapid additive manufacturing method that forms conductive patterns by spraying conductive ink droplets onto a flexible substrate. Due to its advantages of non-contact, high resolution, high precision, and rapid digital prototyping, this method is now expected to be applied in the industrial field to manufacture flexible circuits. Currently, inkjet-printed flexible electronic products have entered the market, but due to the high price of ink and the fact that the powder is prone to "open circuits" after molding, which are difficult to repair, the cost of use is increased, and its large-scale commercial use is still restricted. It is also inconvenient to use. To address this, we propose a 3D printing flexible circuit fabrication system based on composite hydrogel. Summary of the Invention
[0003] In view of the above-mentioned defects or deficiencies in the prior art, this application aims to provide a 3D printing flexible circuit fabrication system based on composite hydrogel, including a device body, a support base installed on the lower surface of the device body, a discharge port opened on one side surface of the device body, a flexible baffle installed on the inner surface of the discharge port, a conveyor belt installed on one side of the flexible baffle, a premixing box installed on the upper surface of the device body, and a feed port installed on the upper surface of the premixing box.
[0004] Preferably, the premixing box has a sealed box inside, and a water return slope is installed on the lower surface of the sealed box.
[0005] Preferably, a support transmission rod is installed on the upper surface of the return slope, a stirring fan blade is installed on the upper surface of the support transmission rod, and a sealing plug is installed on one side of the return slope on the lower surface of the sealing box.
[0006] Preferably, a bearing is installed inside the sealing plug, a transmission threaded rod is installed inside the bearing, a heating box is installed on one side of the threaded rod, and a heating device is installed inside the heating box.
[0007] Preferably, a rotating rod is installed on one side surface of the heating box, a sealing baffle is installed on the surface of the rotating rod, a liquid inlet pipe is installed on one side of the sealing baffle, and an ion oscillation box is installed on the surface of the liquid inlet pipe.
[0008] Preferably, an ion oscillation device is installed inside the ion oscillation box, an oscillation detection device is installed on one side of the ion oscillation box, and a control panel is installed below the oscillation detection device.
[0009] Preferably, an infusion pipe is installed on the surface of the ion oscillation box, a directional rod is installed at one end of the infusion pipe, and a sliding rail is installed on one side of the directional rod.
[0010] Preferably, a compression infusion rod is mounted on the surface of the directional rod, a hydraulic tank is mounted on one side of the compression infusion rod, a 3D printing nozzle is mounted on one end of the hydraulic tank, and a three-dimensional flexible circuit is mounted on one side of the 3D printing nozzle.
[0011] Beneficial effects:
[0012] 1. This 3D printing flexible circuit fabrication system based on composite hydrogel can deliver printing ink to a hydraulic tank after the solution is prepared through a set infusion pipeline. The direction of the printing nozzle can be adjusted by the set directional rod and sliding rail, so as to perform 3D printing from all directions. During 3D printing, the set compression infusion rod can squeeze the hydraulic tank, thereby adjusting the printing air pressure of the printing nozzle to a suitable level. The system can print circuit patterns designed by computer software onto a flexible substrate, thus fabricating three-dimensional flexible circuits. It is extremely convenient to use.
[0013] 2. This 3D printing flexible circuit fabrication system based on composite hydrogel features a transmission threaded rod that rotates after the solution is mixed, causing the sealing plug to move downwards and slide off the lower surface of the sealing box. Bearings prevent the transmission threaded rod from sliding off the sealing plug surface. After the mixed solution is transported to the heating box, a heating device heats the solution, facilitating subsequent operations. An oscillation detection device detects the centrifuged solution after centrifugation. If the detection is successful, the control panel is activated to initiate the 3D printing process. Attached Figure Description
[0014] Other features, objects, and advantages of this application will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings:
[0015] Figure 1This is a schematic diagram of the overall structure of the present invention;
[0016] Figure 2 This is a schematic cross-sectional view of the overall structure of the present invention;
[0017] Figure 3 This is an enlarged cross-sectional view of part of the structure of the present invention;
[0018] Figure 4 This is a partial structural diagram of the present invention.
[0019] In the diagram: 1. Main body of the device; 2. Support base; 3. Discharge port; 4. Flexible baffle; 5. Conveyor belt; 6. Premixing box; 7. Feed inlet; 8. Sealing box; 9. Return slope; 10. Support transmission rod; 11. Stirring fan blade; 12. Sealing plug; 13. Bearing; 14. Threaded rod; 15. Heating box; 16. Heating device; 17. Rotating rod; 18. Sealing baffle; 19. Liquid inlet pipe; 20. Ion oscillation box; 21. Ion oscillation device; 22. Oscillation detection device; 23. Liquid delivery pipe; 24. Orientation rod; 25. Sliding track; 26. Compression delivery rod; 27. Hydraulic tank; 28. 3D printing nozzle; 29. Three-dimensional flexible circuit; 220. Control panel. Detailed Implementation
[0020] The present application will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and not intended to limit it. Furthermore, it should be noted that, for ease of description, only the parts relevant to the invention are shown in the accompanying drawings.
[0021] The accompanying drawings in this embodiment of the invention: The different types of cross-sectional lines in the drawings are not labeled according to national standards, nor do they specify the material requirements of the components. They are used to distinguish the cross-sectional views of the components in the drawings.
[0022] Please see Figure 1-3 A 3D printing flexible circuit fabrication system based on composite hydrogel includes a device body 1, a support base 2 installed on the lower surface of the device body 1, a discharge port 3 opened on one side surface of the device body 1, a flexible baffle 4 installed on the inner surface of the discharge port 3, a conveyor belt 5 installed on one side of the flexible baffle 4, a premixing box 6 installed on the upper surface of the device body 1, and a feed port 7 installed on the upper surface of the premixing box 6. The support base 2 can support the entire device. The completed three-dimensional flexible circuit 29 can be transported out through the discharge port 3. The polymer matrix and conductive filler can be premixed in solution through the premixing box 6.
[0023] The premixing box 6 has a sealed box 8 inside, and a water return slope 9 is installed on the lower surface of the sealed box 8. The water return slope 9 can transport the mixed solution to the heating box 15.
[0024] The upper surface of the return slope 9 is equipped with a support transmission rod 10, and the upper surface of the support transmission rod 10 is equipped with a stirring blade 11. A sealing plug 12 is installed on one side of the return slope 9 on the lower surface of the sealing box 8. The support transmission rod 10 can drive the stirring blade 11, so that the stirring blade 11 can stir the mixed solution, thereby enabling the materials in it to be mixed normally. The sealing plug 12 can seal the sealing box 8 during the stirring and mixing process.
[0025] The sealing plug 12 has a bearing 13 installed inside, and a transmission threaded rod 14 is installed inside the bearing 13. A heating box 15 is installed on one side of the threaded rod 14, and a heating device 16 is installed inside the heating box 15. After the solution is stirred and mixed, the transmission threaded rod 14 can rotate, thereby driving the sealing plug 12 to move downward and slide off the lower surface of the sealing box 8. The bearing 13 can prevent the transmission threaded rod 14 from sliding off the surface of the sealing plug 12. After the mixed solution is transported to the heating box 15, the heating device 16 can heat the mixed solution to facilitate the normal operation of subsequent work.
[0026] The heating chamber 15 has a rotating rod 17 mounted on one side, a sealing baffle 18 mounted on the surface of the rotating rod 17, an inlet pipe 19 mounted on one side of the sealing baffle 18, and an ion oscillation chamber 20 mounted on the surface of the inlet pipe 19. After the solution is heated, the rotating rod 17 can rotate, thereby driving the sealing baffle 18 to rotate, so that the mixed solution in the heating chamber 15 can be normally transported to the ion oscillation chamber 20 for ion oscillation, thereby enabling the preparation of the required printing ink.
[0027] The ion oscillation chamber 20 is equipped with an ion oscillation device 21, an oscillation detection device 22 is installed on one side of the ion oscillation chamber 20, and a control panel 220 is installed below the oscillation detection device 22. The ion oscillation device 21 can oscillate solutions with high concentrations. After centrifugation, the oscillation detection device 22 can detect the solution after centrifugation. When the detection is qualified, the control panel 220 will be controlled to carry out the subsequent 3D printing.
[0028] The ion oscillation box 20 is equipped with a liquid delivery pipe 23. One end of the liquid delivery pipe 23 is equipped with a directional rod 24, and a sliding rail 25 is installed on one side of the directional rod 24. Through the liquid delivery pipe 23, the printing ink can be delivered to the hydraulic tank 27 after the solution is prepared. Through the directional rod 24 and the sliding rail 25, the direction of the printing nozzle 28 can be adjusted, thereby enabling 3D printing from all directions.
[0029] The device includes a compression infusion rod 26 mounted on the surface of the directional rod 24, a hydraulic tank 27 mounted on one side of the compression infusion rod 26, a 3D printing nozzle 28 mounted on one end of the hydraulic tank 27, and a three-dimensional flexible circuit 29 mounted on one side of the 3D printing nozzle 28. During 3D printing, the compression infusion rod 26 can compress the hydraulic tank 27, thereby adjusting the printing air pressure of the printing nozzle 28 to a suitable level. This allows the circuit pattern designed with computer software to be printed onto a flexible substrate, thus creating a three-dimensional flexible circuit that is extremely convenient to use.
[0030] When the system is working, such as Figure 2 As shown, during use, the supporting transmission rod 10 drives the stirring blades 11, enabling them to stir the mixed solution and ensure proper mixing of the materials. The sealing plug 12 seals the sealing box 8 during the mixing process. After mixing, the transmission threaded rod 14 rotates, causing the sealing plug 12 to move downwards and slide off the lower surface of the sealing box 8. The bearing 13 prevents the transmission threaded rod 14 from slipping off the sealing plug 12. When the mixed solution is transferred to the heating box 15, the heating device 16 heats it, facilitating subsequent operations. After heating, the rotating rod 17 rotates, causing the sealing baffle 18 to rotate, allowing the mixed solution in the heating box 15 to be properly transported to the ion exchange station. In the oscillation chamber 20, ion oscillation is performed to prepare the required printing ink. The oscillation detection device 22 detects the solution after centrifugation. If the detection is successful, the control panel 220 is activated to initiate subsequent 3D printing. The infusion pipe 23 delivers the printing ink to the hydraulic tank 27 after solution preparation. The direction of the printing nozzle 28 can be adjusted using the directional lever 24 and sliding rail 25, enabling omnidirectional 3D printing. During 3D printing, the compression infusion rod 26 applies pressure to the hydraulic tank 27, adjusting the printing air pressure of the printing nozzle 28. The circuit pattern designed with computer software assistance is printed onto a flexible substrate, creating a three-dimensional flexible circuit that is extremely convenient to use.
[0031] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. This application will now be described in detail with reference to the accompanying drawings and embodiments.
[0032] The above description is merely a preferred embodiment of this application and an explanation of the technical principles employed. Those skilled in the art should understand that the scope of the invention involved in this application is not limited to technical solutions formed by specific combinations of the above-described technical features, but should also cover other technical solutions formed by arbitrary combinations of the above-described technical features or their equivalents without departing from the inventive concept. For example, technical solutions formed by substituting the above features with (but not limited to) technical features with similar functions disclosed in this application.
Claims
1. A 3D printing flexible circuit fabrication system based on composite hydrogel, comprising a main body of the device (1), characterized in that: A support base (2) is installed on the lower surface of the main body (1) of the device. A discharge port (3) is opened on one side surface of the main body (1). A flexible baffle (4) is installed on the inner surface of the discharge port (3). A conveyor belt (5) is installed on one side of the flexible baffle (4). A premixing box (6) is installed on the upper surface of the main body (1). A feed inlet (7) is installed on the upper surface of the premixing box (6). A sealing box (8) is opened inside the premixing box (6). A water return slope is installed on the lower surface of the sealing box (8). 9); A support transmission rod (10) is installed on the upper surface of the return slope (9), and an agitator blade (11) is installed on the upper surface of the support transmission rod (10). A sealing plug (12) is installed on one side of the return slope (9) on the lower surface of the sealing box (8). A bearing (13) is installed inside the sealing plug (12), and a transmission threaded rod (14) is installed inside the bearing (13). A heating box (15) is installed on one side of the threaded rod (14), and a heating device (16) is installed inside the heating box (15). A rotating rod (17) is mounted on one side of the heating box (15), a sealing baffle (18) is mounted on the surface of the rotating rod (17), an inlet pipe (19) is mounted on one side of the sealing baffle (18), and an ion oscillation box (20) is mounted on the surface of the inlet pipe (19); an ion oscillation device (21) is installed inside the ion oscillation box (20), an oscillation detection device (22) is mounted on one side of the ion oscillation box (20), and a control panel (22) is mounted below the oscillation detection device (22). 0); The surface of the ion oscillation box (20) is equipped with an infusion pipe (23), one end of the infusion pipe (23) is equipped with an adjusting rod (24), and a sliding rail (25) is installed on one side of the adjusting rod (24); a compression infusion rod (26) is installed on the surface of the adjusting rod (24), a hydraulic tank (27) is installed on one side of the compression infusion rod (26), a 3D printing nozzle (28) is installed at one end of the hydraulic tank (27), and a three-dimensional flexible circuit (29) is installed on one side of the 3D printing nozzle (28).
Citation Information
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