A device for preparing a nano-conductive ink

Abstract

The utility model discloses a preparation device of nanometer conductive ink, include: preparation frame, mounting ring and scatter subassembly, be provided with preparation bucket on preparation frame, the upside of preparation bucket is provided with the preparation cover that is matched with it, is installed on preparation frame hydraulic pressure rod, is installed on preparation cover stirring motor, and the output of hydraulic pressure rod is connected with stirring motor, and the output fixed connection of stirring motor has stirring rod, the mounting ring sets up in preparation bucket, and the mounting ring top fixed connection has a plurality of even distribution's fixed rod, and a plurality of fixed rod top all are fixedly connected with preparation cover bottom, the number of scatter subassembly is set up to be multiple, and a plurality of scatter subassembly is in the circle distribution, it can realize the dispersion evenness and stability of ink system that has improved significantly, and the conductive performance and printing adaptability of conductive ink have been strengthened, and raw material waste has been reduced, and it is convenient for automation, continuous production, and the whole preparation efficiency and product consistency have been improved.

Description

Technical Field

[0001] This utility model relates to the field of preparation device technology, and in particular to a preparation device for nano-conductive ink. Background Technology

[0002] Currently, the preparation of nano-conductive inks typically involves adding raw materials such as nano-conductive fillers, solvents, binders, and dispersants to a preparation tank in a specific ratio using a stirring device. A stirring motor drives a stirring rod to mix and disperse the materials, ensuring the nanomaterials are evenly distributed throughout the ink system. To further improve ink quality, the dispersed ink undergoes filtration, usually using multi-stage filters or filter cartridges to remove large particles and undispersed agglomerates. The filtered ink then undergoes degassing, commonly achieved through vacuum degassing or centrifugal degassing, to remove residual air bubbles and improve the ink's density and conductivity. These traditional preparation devices and processes are widely used in the production of nano-conductive inks.

[0003] However, in the actual preparation process of material mixing, because nanomaterials are prone to agglomeration, and the traditional stirring method is mainly top-driven, the material in the tank is easily subjected to centrifugal force during stirring, causing large agglomerates or undispersed nanomaterials to settle along the periphery and bottom of the tank. The settled agglomerates are difficult to be fully dispersed and circulated, resulting in large particulate impurities in the ink, which affects the dispersion uniformity, conductivity and printing quality of the final product. In addition, the accumulation of sediment can easily lead to waste of raw materials and difficulty in cleaning equipment, which restricts the industrialization and high-quality production of ink preparation.

[0004] Therefore, a device for preparing nano-conductive ink is proposed to address the above problems. Utility Model Content

[0005] This invention provides a device for preparing nano-conductive ink, which not only significantly improves the dispersion uniformity and stability of the ink system and enhances the conductivity and printability of the conductive ink, but also reduces raw material waste, facilitates automated and continuous production, and improves overall preparation efficiency and product consistency.

[0006] This invention provides a device for preparing nano-conductive ink, comprising: a preparation frame, a mounting ring, and a dispersing assembly. A preparation container is mounted on the preparation frame, and a matching preparation cover is mounted on the upper side of the preparation container. A hydraulic rod is mounted on the preparation frame, and a stirring motor is mounted on the preparation cover. The output end of the hydraulic rod is connected to the stirring motor, and a stirring rod is fixedly connected to the output end of the stirring motor. The mounting ring is disposed inside the preparation container, and multiple evenly distributed fixing rods are fixedly connected to the top of the mounting ring. The top ends of the multiple fixing rods are all fixedly connected to the bottom end of the preparation cover. Multiple dispersing assemblies are arranged circumferentially.

[0007] In a nano-conductive ink preparation device according to an embodiment of the present invention, the dispersing component includes an ascending cylinder, which is connected to an mounting ring via a connecting rod. A drive motor is installed inside the ascending cylinder, and a spiral disk is fixedly connected to the output end of the drive motor. The bottom end of the spiral disk is rotatably connected to the ascending cylinder, and a plurality of evenly distributed inflow holes are opened at the bottom end of the ascending cylinder.

[0008] In a nano-conductive ink preparation device according to an embodiment of the present invention, an adjustment and release assembly is provided on the outside of the rising cylinder. The adjustment and release assembly includes a limiting frame and an adjustment frame. The limiting frame and the adjustment frame are both fixedly connected to the rising cylinder. A servo motor is fixedly connected to one end of the adjustment frame. A reciprocating lead screw is fixedly connected to the output end of the servo motor. A pair of mutually symmetrical Z-shaped rods are installed around the reciprocating lead screw.

[0009] In a nano-conductive ink preparation device according to an embodiment of the present invention, an adjusting motor is fixedly connected to one end of the Z-shaped rod, a rotating roller is fixedly connected to the output end of the adjusting motor, a limiting block is rotatably connected to one end of the rotating roller, and the limiting block is slidably connected to the limiting frame.

[0010] In a nano-conductive ink preparation apparatus according to one embodiment of the present invention, an inclined plate is fixedly connected to one end of the rising cylinder, and the inclined plate is disposed on the upper side of a pair of rotating rollers.

[0011] In a nano-conductive ink preparation device according to an embodiment of the present invention, an L-shaped rod is fixedly connected to the top of both the limiting frame and the adjusting frame, and a storage box is fixedly connected to one end of a pair of L-shaped rods close to each other.

[0012] In a nano-conductive ink preparation apparatus according to an embodiment of the present invention, a dispersant is provided in the storage box, and multiple uniformly distributed electric nozzles are installed at the bottom of the storage box.

[0013] The technical solution provided in this application embodiment can include the following beneficial effects: This solution adopts an innovative structural design of multiple circumferentially distributed dispersing components, combined with an ascending cylinder, a spiral disk, and subsequent adjustment and release components. This design can effectively capture and enhance the agglomerates deposited at the bottom and around the barrel. Through the synergistic effect of efficient shearing, crushing, and dispersants, the full dispersion and dynamic circulation of nanomaterials are achieved. This structure not only significantly improves the dispersion uniformity and stability of the ink system and enhances the conductivity and printability of conductive inks, but also reduces raw material waste, facilitates automated and continuous production, and improves overall preparation efficiency and product consistency.

[0014] It should be understood that the above general description and the following detailed description are exemplary and explanatory only, and do not limit this application. Attached Figure Description

[0015] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 This is a three-dimensional structural diagram of the preparation apparatus in this scheme;

[0017] Figure 2 This is a schematic diagram of the preparation cap structure in this scheme;

[0018] Figure 3 This is a schematic diagram of the mounting ring structure in this scheme;

[0019] Figure 4 This is a schematic diagram of the disintegration component and the adjustment and release component in this solution;

[0020] Figure 5 This is a side structural diagram of the dispersing component and the adjustment and release component in this solution.

[0021] Reference numerals: 1. Preparation rack; 2. Mounting ring; 3. Dispersing assembly; 4. Adjustment and release assembly; 11. Preparation tank; 12. Preparation cover; 13. Hydraulic rod; 14. Stirring motor; 15. Stirring rod; 21. Fixing rod; 31. Rising cylinder; 32. Drive motor; 33. Spiral disc; 34. Inclined plate; 41. Limiting frame; 42. Adjusting frame; 43. Servo motor; 44. Z-shaped rod; 45. Adjusting motor; 46. Rotating roller; 47. L-shaped rod; 48. Storage box. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0023] In the description of this application, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," and "counterclockwise," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, are only for the convenience of describing this application 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, and therefore should not be construed as a limitation of this application. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include one or more of the stated features. In the description of this application, "a plurality of" means two or more, unless otherwise explicitly specified.

[0024] The following detailed description of some embodiments of this application is provided in conjunction with the accompanying drawings. Unless otherwise specified, the following embodiments and features can be combined with each other.

[0025] like Figures 1 to 5 As shown, this application provides a device for preparing nano-conductive ink, including: a preparation frame 1, a mounting ring 2, and a dispersing component 3. The preparation frame 1 is provided with a preparation barrel 11, and a matching preparation cover 12 is provided on the upper side of the preparation barrel 11. A hydraulic rod 13 is installed on the preparation frame 1, and a stirring motor 14 is installed on the preparation cover 12. The output end of the hydraulic rod 13 is connected to the stirring motor 14, and a stirring rod 15 is fixedly connected to the output end of the stirring motor 14. The mounting ring 2 is disposed inside the preparation barrel 11, and a plurality of evenly distributed fixing rods 21 are fixedly connected to the top of the mounting ring 2. The top ends of the plurality of fixing rods 21 are all fixedly connected to the bottom end of the preparation cover 12. The number of dispersing components 3 is set to multiple, and the plurality of dispersing components 3 are circumferentially distributed.

[0026] In an optional embodiment, the dispersing component 3 includes an ascending cylinder 31, which is connected to the mounting ring 2 via a connecting rod. A drive motor 32 is installed inside the ascending cylinder 31, and a spiral disk 33 is fixedly connected to the output end of the drive motor 32. The bottom end of the spiral disk 33 is rotatably connected to the ascending cylinder 31, and multiple evenly distributed inflow holes are opened at the bottom end of the ascending cylinder 31.

[0027] For example, the device includes a preparation rack 1, a mounting ring 2, and multiple dispersing components 3. The preparation rack 1 is provided with a preparation tank 11 for holding raw materials. The upper side of the preparation tank 11 is sealed by a preparation cover 12. A hydraulic rod 13 is also installed on the preparation rack 1. The output end of the hydraulic rod 13 is connected to a stirring motor 14. The output end of the stirring motor 14 is fixedly connected to a stirring rod 15, which can efficiently stir the materials in the tank and make the raw materials initially mixed evenly.

[0028] The mounting ring 2 is set inside the preparation barrel 11, which can provide a stable mounting base for the subsequent dispersing components 3. Multiple evenly distributed fixing rods 21 are fixedly connected to the top of the mounting ring 2, and are fixedly connected to the bottom of the preparation cover 12 through these fixing rods 21. Multiple dispersing components 3 are distributed in a circumferential shape inside the preparation barrel 11, which can work together at multiple points to completely disperse the agglomerates in different bottom areas of the barrel.

[0029] In a preferred embodiment, each dispersing component 3 includes an ascending cylinder 31, which is connected to the mounting ring 2 via a connecting rod. A drive motor 32 is provided inside the ascending cylinder 31. The output end of the drive motor 32 is fixedly connected to a spiral disk 33. The bottom end of the spiral disk 33 is rotatably connected to the ascending cylinder 31. The bottom end of the ascending cylinder 31 is provided with a plurality of evenly distributed inflow holes.

[0030] During operation, the spiral disk 33 rotates at high speed under the drive of the drive motor 32, forming a strong fluid disturbance, which causes the agglomerates deposited at the bottom of the barrel or near the inner wall to be sucked into the riser 31 through the inlet hole. Subsequently, the spiral disk 33 drives these agglomerates upward to achieve dynamic circulation of the sediment.

[0031] Through the coordinated operation of multiple dispersing components 3, various agglomerates formed during ink preparation can be captured and transported to the rising cylinder 31 in a timely and effective manner. With the mechanical action of the spiral disk 33, they are transported to the subsequent regulating and releasing components 4 for full dispersion, which promotes the highly uniform distribution of nanomaterials in the system and significantly improves the dispersibility and stability of the ink.

[0032] During preparation, nano-conductive fillers such as nano-silver, nano-carbon nanotubes, and graphene, as well as solvents and binders, can be prepared according to a certain formula ratio. After accurate weighing, all raw materials are added to the preparation tank 11 in sequence. To ensure that the materials are initially uniformly mixed, the stirring motor 14 is started first, and the raw materials in the tank are thoroughly stirred by the stirring rod 15 to form a uniform mixture system of nanomaterials, dispersants, and other components.

[0033] Subsequently, based on the stirring, multiple dispersing components 3 are activated. The drive motor 32 in each dispersing component 3 drives the spiral disk 33 to rotate at high speed. The nano-agglomerates deposited or unevenly dispersed on the bottom and wall of the barrel are sucked in through the inlet hole at the bottom of the rising cylinder 31 and conveyed upward as the spiral disk 33 rotates. Through this process, large particle agglomerates are efficiently captured and sent to the subsequent regulation and release components for shearing and redispersing.

[0034] The ink can then undergo post-processing steps such as filtration and degassing to ultimately obtain a conductive ink product with highly dispersed nanoparticles and excellent performance. After dispersion, the ink is first finely filtered through a filtration device, typically using multi-stage microporous filters or filter cartridges, which can effectively remove residual large particle agglomerates, impurities, or mechanical impurities from the system, ensuring uniform particle size distribution of the ink and avoiding quality problems such as clogging and broken lines in the subsequent printing process.

[0035] The filtered ink needs to be degassed. The ink can be sent to a vacuum degaussing tank or centrifugal degaussing equipment to quickly remove residual bubbles or microbubbles in the system by depressurization or centrifugal force. The degassed ink is more dense and can effectively prevent defects such as pinholes and bubbles during printing, and improve the conductivity and surface smoothness of the finished product.

[0036] After the above-mentioned post-processing steps such as filtration and degassing, the final nano-conductive ink has the advantages of high dispersion, few impurities, no bubbles, good fluidity, and excellent conductivity, which can meet the application needs of high-precision printed electronics, flexible circuits and other fields. The filtration and degassing processes are existing technologies and will not be described in detail here.

[0037] In an optional embodiment, an adjustment and release assembly 4 is provided on the outside of the riser 31. The adjustment and release assembly 4 includes a limit frame 41 and an adjustment frame 42. Both the limit frame 41 and the adjustment frame 42 are fixedly connected to the riser 31. A servo motor 43 is fixedly connected to one end of the adjustment frame 42. A reciprocating lead screw is fixedly connected to the output end of the servo motor 43. A pair of symmetrical Z-shaped rods 44 are installed around the reciprocating lead screw.

[0038] One end of the Z-shaped rod 44 is fixedly connected to an adjusting motor 45, and the output end of the adjusting motor 45 is fixedly connected to a rotating roller 46. One end of the rotating roller 46 is rotatably connected to a limit block, and the limit block is slidably connected to the limit frame 41. One end of the rising cylinder 31 is fixedly connected to an inclined plate 34, which is located directly above a pair of rotating rollers 46.

[0039] For example, an adjustment and release assembly 4 is provided on the outside of the rising cylinder 31. The adjustment and release assembly 4 includes a limiting frame 41 and an adjustment frame 42, both of which are fixedly connected to the rising cylinder 31, and can provide a stable support structure for the subsequent shearing and release mechanism.

[0040] A servo motor 43 is fixedly connected to one end of the adjustment frame 42. The output end of the servo motor 43 is connected to a reciprocating lead screw. A pair of symmetrical Z-shaped rods 44 are installed around the outside of the reciprocating lead screw. This structure enables precise position adjustment of the shearing component.

[0041] Specifically, one end of the Z-shaped rod 44 is fixedly connected to the adjusting motor 45, and the output end of the adjusting motor 45 is fixedly connected to the rotating roller 46. One end of the rotating roller 46 is connected to the limiting block through a rotating connection, and the limiting block is slidably connected to the limiting frame 41. This structure ensures that the rotating roller 46 can move and adjust flexibly during the shearing process.

[0042] The servo motor 43 drives the reciprocating lead screw to rotate, which in turn drives the Z-shaped rod 44 and its adjusting motor 45 to move precisely along the limit frame 41, thereby achieving fine adjustment of the spacing and pressure of the rotating roller 46.

[0043] When the rising cylinder 31 conveys the agglomerates to the rotating rollers 46 through the inclined plate 34, the rotating rollers 46 can fully crush and shear the agglomerates, further breaking them up and preventing blockage, thus ensuring the efficient dispersion of nanomaterials.

[0044] In summary, the regulating and releasing component 4 can efficiently shear and break up large particle agglomerates conveyed by the ascending cylinder 31, ensuring that the agglomerates can be fully broken up, which is beneficial to the uniform dispersion of nanomaterials.

[0045] Secondly, the position of a pair of rotating rollers 46 can be finely adjusted by a servo motor 43, a reciprocating lead screw and a Z-shaped rod 44, so as to flexibly adjust the shearing force and gap according to the size and dispersion difficulty of different agglomerates, meet the dispersion requirements under different working conditions, and ensure the shearing effect and equipment adaptability.

[0046] By automatically adjusting the position and pressure of the shearing rollers and rationally guiding the material flow, the dispersion efficiency and adaptability of the device are significantly improved. It can flexibly shear for different agglomerate sizes, effectively avoiding insufficient dispersion or dispersion failure due to insufficient pressure, thereby further improving the preparation quality and production efficiency of nano-conductive inks.

[0047] In an optional embodiment, an L-shaped rod 47 is fixedly connected to the top of both the limiting frame 41 and the adjusting frame 42. A storage box 48 is fixedly connected to one end of a pair of L-shaped rods 47 close to each other. The storage box 48 contains a dispersant, and multiple evenly distributed electric nozzles are installed at the bottom of the storage box 48.

[0048] For example, both the top of the limiting frame 41 and the adjusting frame 42 are fixedly connected to L-shaped rods 47. A storage box 48 is fixedly connected to the two L-shaped rods 47 at their close ends. The storage box 48 is used to store the dispersant, and multiple evenly distributed electric nozzles are installed at its bottom. Through the above structural design, the dispersant can be accurately and evenly sprayed from the multiple electric nozzles at the bottom of the storage box 48 to the shearing area where a pair of rotating rollers 46 are located, according to actual needs.

[0049] During device operation, the dispersant can be quantitatively and periodically sprayed onto the agglomerates as they pass through the shearing zone of a pair of rotating rollers 46. In this way, the dispersant can quickly coat the surface of the newly exposed nanoparticles at the moment when the agglomerates are mechanically sheared and crushed, achieving efficient dispersion in conjunction with the shearing force and further preventing the particles from re-agglomerating.

[0050] Since the spraying area directly corresponds to the shear action zone, it effectively ensures the utilization rate and efficiency of the dispersant, allowing the physical dispersing and chemical dispersion processes to work closely together.

[0051] By precisely synchronizing the replenishment of dispersant within the physical shear region, this device significantly improves the dispersion uniformity and efficiency of the nano-conductive ink system, thereby substantially enhancing the conductivity and stability of the final product. Simultaneously, the multi-nozzle design ensures broad and uniform dispersant distribution, avoiding localized deficiencies or waste, further optimizing the preparation process and improving the automation and intelligence level of the entire device.

[0052] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection. They can refer to a mechanical connection or an electrical connection. They can refer to a direct connection or an indirect connection through an intermediate medium, and they can refer to the internal communication of two components or the interaction between two components. For those skilled in the art, the specific meaning of the above terms in this application can be understood according to the specific circumstances.

[0053] In this application, unless otherwise expressly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature being directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature being directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0054] The foregoing disclosure provides many different embodiments or examples for implementing different structures of this application. To simplify the disclosure, specific examples of components and arrangements are described above. Of course, these are merely examples and are not intended to limit the scope of this application. Furthermore, reference numerals and / or letters may be repeated in different examples; such repetition is for simplification and clarity and does not in itself indicate a relationship between the various embodiments and / or arrangements discussed. In addition, examples of various specific processes and materials are provided in this application, but those skilled in the art will recognize the application of other processes and / or the use of other materials.

[0055] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with an embodiment or example is included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0056] Although embodiments of this application have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of this application, the scope of which is defined by the claims and their equivalents.

Claims

1. An apparatus for preparing nano-conductive ink, characterized in that, include: A preparation rack is provided, on which a preparation barrel is provided. A matching preparation cover is provided on the upper side of the preparation barrel. A hydraulic rod is installed on the preparation rack, and a stirring motor is installed on the preparation cover. The output end of the hydraulic rod is connected to the stirring motor, and a stirring rod is fixedly connected to the output end of the stirring motor. The mounting ring is placed inside the preparation barrel, and a plurality of evenly distributed fixing rods are fixedly connected to the top of the mounting ring, with the tops of the plurality of fixing rods being fixedly connected to the bottom of the preparation cover. The number of the dispersing components is set to multiple, and the multiple dispersing components are distributed in a circular pattern.

2. The apparatus for preparing nano-conductive ink according to claim 1, characterized in that, The dispersing component includes an ascending cylinder, which is connected to an mounting ring via a connecting rod. A drive motor is installed inside the ascending cylinder, and a spiral disk is fixedly connected to the output end of the drive motor. The bottom end of the spiral disk is rotatably connected to the ascending cylinder, and multiple evenly distributed inflow holes are opened at the bottom end of the ascending cylinder.

3. The apparatus for preparing nano-conductive ink according to claim 2, characterized in that, An adjustment and release assembly is provided on the outside of the rising cylinder. The adjustment and release assembly includes a limiting frame and an adjustment frame. Both the limiting frame and the adjustment frame are fixedly connected to the rising cylinder. A servo motor is fixedly connected to one end of the adjustment frame. A reciprocating lead screw is fixedly connected to the output end of the servo motor. A pair of symmetrical Z-shaped rods are installed around the reciprocating lead screw.

4. The apparatus for preparing nano-conductive ink according to claim 3, characterized in that, One end of the Z-shaped rod is fixedly connected to an adjusting motor, the output end of the adjusting motor is fixedly connected to a rotating roller, one end of the rotating roller is rotatably connected to a limit block, and the limit block is slidably connected to the limit frame.

5. The apparatus for preparing nano-conductive ink according to claim 4, characterized in that, An inclined plate is fixedly connected to one end of the rising cylinder, and the inclined plate is located directly above a pair of rotating rollers.

6. The apparatus for preparing nano-conductive ink according to claim 4, characterized in that, The top of both the limiting frame and the adjusting frame are fixedly connected to L-shaped rods, and a storage box is fixedly connected to one end of each pair of L-shaped rods close to each other.

7. The apparatus for preparing nano-conductive ink according to claim 6, characterized in that, The storage box contains a dispersant, and multiple evenly distributed electric nozzles are installed at the bottom of the storage box.

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