Processing device and manufacturing method of high-thermal-conductivity C-grade soft composite material

Abstract

The invention relates to a processing device and a manufacturing method of a high-thermal-conductivity C-grade soft composite material. The processing device comprises a first mixing mill, a second mixing mill, a dispersing and transferring assembly and a granulator, the dispersing and transferring assembly connects the first mixing mill with the second mixing mill in a sealed mode through a rotating base, an adjusting base and an arc-shaped screen plate structure, closed transferring and homogenizing treatment of materials from the first mixing mill to the second mixing mill are achieved, an auxiliary adding pipeline is integrated through an arc-shaped screen plate, the shearing effect is exerted when the materials pass through meshes, and therefore the materials are evenly mixed. And meanwhile, a functional auxiliary agent is injected, so that dispersion and mixing are synchronously carried out. By implementing the steps of high-temperature primary mixing, closed transfer and shear dispersion, low-temperature final mixing and granulation forming, the heat conductivity of the finally prepared high-heat-conductivity C-grade soft composite material is remarkably improved, and the problems of heat loss, non-uniform filler dispersion and low auxiliary mixing efficiency in a traditional process are effectively solved.

Description

Technical Field

[0001] This invention relates to the field of processing technology for high thermal conductivity Class C soft composite materials, and specifically to a processing apparatus and manufacturing method for high thermal conductivity Class C soft composite materials. Background Technology

[0002] High thermal conductivity Class C flexible composite materials are functional materials with a heat resistance rating of 200℃ or higher (Class C), while also possessing excellent thermal conductivity and a certain degree of flexibility. These materials have crucial application value in the thermal management systems of special motors, electrical appliances, electronic transformers, and modern high-power electronic equipment. They are commonly used for inter-slot, inter-phase, or inter-layer insulation, requiring effective insulation while rapidly dissipating heat to ensure stable and reliable operation of equipment at high temperatures. Their typical composition usually includes a polymer matrix (such as silicone rubber, epoxy resin, etc.) and carbon-based fillers (such as carbon fiber, graphene, etc.) to significantly improve thermal conductivity.

[0003] Currently, the manufacturing of such composite materials generally employs a multi-stage mixing and molding process. The core principle is as follows: First, carbon-based raw materials and a polymer matrix are initially mixed at high temperature in a first mixer to allow the filler to initially disperse within the matrix, resulting in a plasticized material. Then, this plasticized material is transferred to a second mixer for final mixing with functional additives (such as crosslinking agents and coupling agents) at a relatively low temperature to prevent additive failure and ensure uniform dispersion. Finally, the uniformly mixed material is granulated into pellets using a pellet mill.

[0004] In existing technologies, the transfer of materials from initial mixing to final mixing often employs simple pipeline transportation or mechanical shoveling. Meanwhile, functional additives are typically added directly into the mixing mill cavity. However, with increasingly stringent requirements for material performance, particularly the perfection of the heat-conducting network, the uniformity of filler dispersion, and the consistency of final product performance, the industry is facing challenges.

[0005] In traditional manufacturing processes, carbon-based fillers (especially high aspect ratio fibrous fillers) are prone to agglomeration in polymer matrices. Traditional mixing and transfer processes struggle to apply effective and controllable shear forces for secondary dispersion. This prevents the fillers from forming efficient three-dimensional thermal conductivity pathways, hindering further improvements in the thermal conductivity of composite materials. Furthermore, the direct addition of functional additives to the second mixer relies on the mixer's stirring action, resulting in limited mixing efficiency. This can lead to uneven mixing in certain areas or excessively high local temperatures due to concentrated mechanical energy input, affecting additive activity or matrix properties. Simultaneously, the exposed transfer of initial mixed materials not only causes heat loss, affecting the accuracy of temperature control in subsequent final mixing processes, but also increases the risk of introducing external contaminants, posing a significant disadvantage for the production of high-performance composite materials.

[0006] In summary, existing processing equipment and methods for high thermal conductivity Class C flexible composite materials have significant shortcomings in material dispersion and process integration, resulting in products with insufficient thermal conductivity, consistency, and production efficiency to meet the increasingly demanding requirements of high-end applications. Therefore, it is necessary to research a processing equipment and manufacturing method for high thermal conductivity Class C flexible composite materials. Summary of the Invention

[0007] In view of this, the purpose of the present invention is to provide a processing device and manufacturing method for high thermal conductivity Class C soft composite materials, so as to solve the technical problems existing in the material dispersion, process connection and process control of the existing production equipment. Specifically, the initial mixed materials have the risk of heat loss and contamination during the transfer process, which affects the process stability and product consistency. Moreover, simple transfer cannot effectively disperse the carbon-based filler, resulting in the functional additives relying on traditional stirring and poor mixing effect with the carbon-based filler.

[0008] To achieve the above objectives, the technical solution adopted by the present invention is as follows: a processing device for high thermal conductivity Class C soft composite materials, comprising a first mixer, a second mixer, a dispersion and transfer assembly, and a granulator; the dispersion and transfer assembly includes a rotating base, a telescopic component, an adjusting seat, a connecting cylinder, and an arc-shaped mesh plate; the rotating base is rotatably mounted at the discharge port of the first mixer, the adjusting seat is slidably fitted inside the rotating base, the telescopic component is mounted on the rotating base and connected to the adjusting seat, allowing the adjusting seat to slide relative to the rotating base; the connecting cylinder is located at the feed port of the second mixer, the arc-shaped mesh plate is adapted to the adjusting seat and located at the inner end of the connecting cylinder; after the rotating base rotates, it can dock with the connecting cylinder, and allow the adjusting seat to be pushed and translated into the connecting cylinder; the granulator is connected to the discharge end of the second mixer and is used to form the final mixed material into granules.

[0009] Furthermore, the first mixer is used to perform high-temperature initial mixing of materials containing carbon-based raw materials and high-molecular polymer matrix to obtain plasticized materials; the second mixer is located downstream of the first mixer and is used to receive the plasticized materials and perform low-temperature final mixing with functional additives.

[0010] Furthermore, the arc-shaped mesh plate is provided with a main pipe and branch pipes. The main pipe is located in the middle of the arc-shaped mesh plate, and the branch pipes are connected to the main pipe and located at the mesh connection of the arc-shaped mesh plate. The main pipe is connected to the functional additive adding device of the second mixing machine.

[0011] Furthermore, the arc-shaped mesh plate is provided with a slider, and a groove is provided on the inner wall of the connecting cylinder. A positioning shaft is provided in the groove, and the slider is adapted to be mounted on the positioning shaft. A spring is provided between the end of the groove and the slider, and the spring is mounted on the positioning shaft.

[0012] Furthermore, a limit block is provided on the slider, a limit groove is provided on the inner wall of the slide, and a pressure switch is provided on the inner side of the limit groove. When the arc-shaped mesh plate moves to the predetermined working position, the limit block triggers the pressure switch.

[0013] Furthermore, an annular sealing sleeve is fitted on the outer side of the rotating base, and the outer contour of the sealing sleeve is adapted to the feed inlet of the connecting cylinder and the discharge outlet of the first mixer.

[0014] Furthermore, a protective plate is provided between the discharge port of the first mixer and the connecting cylinder, and the protective plate is fitted and adapted to the sealing sleeve.

[0015] Furthermore, a lower limit seat is provided inside the rotating base, and an upper limit seat is provided at the discharge port of the first mixing machine. The upper limit seat and the lower limit seat form an adjustable range.

[0016] A method for manufacturing a high thermal conductivity Class C flexible composite material, applied to the processing apparatus described above, includes the following steps: S1. The initial material containing carbon-based raw materials and polymer matrix is ​​fed into the first mixer via the first conveyor belt; S2. In the first mixer, the material is subjected to high-temperature primary mixing at a temperature of 140℃-180℃ to obtain plasticized material. S3. Activate the dispersive transfer assembly to transfer the plasticized material from the first mixer to the second mixer. The transfer process specifically includes: activating the telescopic component to move the adjusting seat down along the rotating base, forming a receiving space within the rotating base, into which the plasticized material enters; subsequently, the rotating base rotates and connects with the connecting cylinder at the feed inlet of the second mixer; after connection, the adjusting seat, driven by the telescopic component, carries the plasticized material and moves it horizontally into the connecting cylinder; the temporarily stored plasticized material is forced through the mesh of the arc-shaped mesh plate under the pressure of the adjusting seat; the material is subjected to shearing, compression, and diversion effects as it passes through the mesh; finally, it falls into the second mixer. S4. Add functional additives to the second mixer and perform low-temperature final mixing at 80℃-120℃ to obtain a uniform composite material mixture. S5. Receive the composite material mixture from the second mixer via the second conveyor belt and transport it to the feed inlet of the granulator; S6. In the pelletizer, the conveyed mixture is melt-extruded, cooled and pelletized to finally obtain a high thermal conductivity C-grade soft composite material.

[0017] Furthermore, functional additives are added to the pipeline integrated into the arc-shaped mesh plate, so that the functional additives are homogenized and mixed with the material passing through the arc-shaped mesh plate.

[0018] The beneficial effects of the above technical solution are as follows: Addressing the core pain points in the production of existing high thermal conductivity Class C soft composite materials, such as heat dissipation pollution during material transfer, agglomeration of carbon-based fillers, and uneven mixing of additives, this solution constructs an integrated processing system with closed-loop transfer, secondary dispersion, and synchronous mixing through a design approach that integrates processes and coordinates workflows. This upgrades the traditional single material transfer step into a key process that combines dispersion and mixing functions. Through the modular design of the dispersion and transfer components, the system links the high-temperature initial mixing of the first mixer, the low-temperature final mixing of the second mixer, and the forming process of the granulator, achieving fully closed-loop and intelligent control throughout the entire process. This fundamentally improves the uniformity of material dispersion, process stability, and product performance consistency.

[0019] The core features of this invention are as follows: First, it utilizes a rotating base, adjusting seat, and sealing structure to achieve closed material transfer, reducing heat loss and pollution; second, it achieves secondary dispersion of carbon-based fillers through the shearing action of the arc-shaped mesh plate, helping to build an efficient heat-conducting network; and third, it integrates the additive addition pipeline into the arc-shaped mesh plate to achieve simultaneous dispersion and mixing, thereby improving mixing efficiency.

[0020] In its specific structure, this invention features an annular sealing sleeve fitted to the outside of the rotating base, which is compatible with the discharge port of the first mixer and the inlet of the connecting cylinder. A protective plate is also fitted between the first mixer and the connecting cylinder. Simultaneously, the adjusting seat and the rotating base cooperate to form a sealed receiving space. During material transfer, the sealing sleeve and the protective plate remain in contact during the rotating docking process, forming a continuous sealing ring. Combined with the sealed receiving space, this achieves a fully sealed transfer of material from the first mixer to the second mixer. This avoids the rapid heat loss of the high-temperature plasticized material caused by traditional exposed transfer methods, reducing temperature fluctuations in the material entering the second mixer and ensuring the stability of subsequent low-temperature final mixing process parameters. Furthermore, it prevents the intrusion of external dust, moisture, and other contaminants, reducing the risk of material oxidation and improving product qualification rate.

[0021] The core component of the distributed transfer assembly features an arc-shaped mesh plate, and the adjusting seat can be driven by the telescopic component to push and compress materials into the connecting cylinder. After the plasticized material, which has undergone initial mixing at high temperature, enters the receiving space, the adjusting seat forces the material through the mesh of the arc-shaped mesh plate. The mesh exerts strong shearing, compression, and diversion effects on the material, breaking up the agglomerated carbon-based fillers (carbon fibers, graphene, etc.). This effectively solves the problem that traditional transfer methods cannot achieve secondary dispersion, allowing the carbon-based fillers to be uniformly dispersed in the polymer matrix, forming a complete three-dimensional thermally conductive network.

[0022] The arc-shaped mesh plate integrates a main pipe and branch pipes for conveying additives. The outlet of each branch pipe is located at the mesh connection point, and the pipes are connected to the additive addition equipment of the second mixing mill. While the material is sheared and dispersed by the arc-shaped mesh plate, functional additives are precisely conveyed to the mesh shearing area via the main pipe and branch pipes. The turbulence effect in this area achieves immediate and uniform mixing of the additives and materials. This changes the inefficient traditional method of adding additives after conveying them, relying on the mixing mill for stirring. It also avoids the problem of localized agglomeration caused by directly adding additives to the mixing mill, effectively protecting the activity of crosslinking agents, coupling agents, and other additives, and optimizing the crosslinking density and mechanical properties of the composite material.

[0023] The arc-shaped mesh plate is equipped with a slider, and the inner wall of the connecting cylinder is equipped with a groove, a positioning shaft, and a spring. The slider is equipped with a limit block, and the groove is equipped with a limit slot and a pressure switch. The rotating base is equipped with a lower limit seat, and the discharge port of the first mixing mill is equipped with an upper limit seat. When the adjusting seat moves, the upper and lower limit seats limit its range of motion and the position is fed back by sensors. When the arc-shaped mesh plate is pushed forward, the slider slides along the positioning shaft, the spring buffers the impact force, and after the limit block triggers the pressure switch, the system synchronously starts the additive addition program to achieve precise positioning of each component. Therefore, this invention, through an improved design of the processing device and manufacturing method for high thermal conductivity Class C soft composite materials, overcomes the technical bottlenecks in traditional processes related to transfer, dispersion, and mixing separation. By integrating the dispersion and transfer components, it links the high-temperature initial mixing, low-temperature final mixing, and molding / granulation processes, achieving a synergistic effect of closed-loop transfer with heat preservation and pollution prevention, secondary dispersion via an arc-shaped mesh plate, simultaneous mixing to improve uniformity, and precise positioning to ensure reliability. Compared to existing technologies, this invention not only significantly improves the thermal conductivity and performance consistency of composite materials but also increases production efficiency, reduces pollution risks and equipment maintenance costs, demonstrating significant industrial application value and promising prospects for widespread adoption. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of an embodiment of the present invention; Figure 2 for Figure 1 Internal structure diagram; Figure 3 Another state diagram for the distributed transfer component; Figure 4 This is a schematic diagram of the implementation structure of the arc-shaped mesh panel; Figure 5 This is a schematic diagram of the mating structure between the arc-shaped mesh plate and the adjusting seat; Figure 6 This is a schematic diagram of the mating structure of the limiting groove and the limiting block; Figure 7 This is a process flow diagram of the present invention.

[0025] Reference numerals: 1. First conveyor belt; 2. First mixer; 201. Pressure seat; 202. Mixing roller; 203. Mixing chamber; 3. Dispersion and transfer assembly; 301. Rotating base; 302. Adjusting seat; 303. Telescopic component; 304. Sealing sleeve; 305. Protective plate; 306. Connecting cylinder; 307. Arc-shaped mesh plate; 308. Slider; 309. Spring; 310. Positioning shaft; 311. Lower limit seat; 312. Upper limit seat; 313. Limiting groove; 314. Limiting block; 315. Pressure switch; 4. Second mixer; 401. Main pipe; 402. Branch pipe; 403. Flexible pipe; 404. Functional additive addition equipment; 5. Second conveyor belt; 6. Granulator; 7. Support. Detailed Implementation

[0026] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments: Example 1

[0027] This embodiment aims to provide a processing apparatus and manufacturing method for high thermal conductivity Class C flexible composite materials. It is mainly used for the production of high thermal conductivity Class C flexible composite materials. In traditional multi-stage mixing processes, the transfer of materials between different mixing units often employs exposed or simple pipeline conveying methods. These methods not only easily cause heat loss from the materials, increasing the risk of external contaminant intrusion, but may also disrupt the uniformity of the initially dispersed filler distribution. Furthermore, the transferred materials are often directly fed into the next stage mixer. Because the physical state of the materials (such as temperature and degree of agglomeration) has not been optimized, the subsequent mixing difficulty is significantly increased, resulting in poor uniformity of material and additive mixing, which in turn prolongs the overall processing time and affects the stability of the final product's performance. Therefore, this embodiment optimizes the transfer and connection methods of materials between mixing units, providing a processing apparatus and manufacturing method that can effectively reduce heat loss and contamination, promote uniform dispersion of fillers, improve mixing efficiency, and ensure the consistency of the final product's performance.

[0028] like Figure 1As shown, a processing apparatus for a high thermal conductivity Class C soft composite material includes a first mixer 2, a second mixer 4, a dispersion and transfer assembly 3, and a granulator 6. In this embodiment, the first mixer 2 performs preliminary mixing and plasticization of carbon-based raw materials (such as carbon fiber and graphene) and polymer matrix (such as silicone rubber and epoxy resin) at a relatively high temperature (e.g., 140°C-180°C), laying the foundation for subsequent processing. The dispersion and transfer assembly 3 is used for precision transfer and dispersion. Utilizing a rotatable and telescopic structure, it can receive the plasticized material from the first mixer 2 and transfer it to the second mixer 4 in a sealed manner. The assembly is usually equipped with an arc-shaped mesh plate 307. When the material is pushed through, it will be subjected to strong shearing and extrusion, which can effectively break up the agglomeration of fillers, significantly improve the dispersion uniformity, and create favorable conditions for constructing an efficient three-dimensional thermally conductive network. The second mixer 4 is for low-temperature final mixing. Pre-dispersed materials are mixed with functional additives (such as crosslinking agents and coupling agents) at a relatively low temperature to protect the activity of the additives and ensure their uniform distribution, thereby optimizing the performance of the final product. The granulator 6 is used for molding and granulation. It processes the uniformly mixed materials through melt extrusion, cooling, and pelletizing to produce granular products of uniform specifications, facilitating packaging, transportation, and subsequent use.

[0029] In the specific implementation structure, such as Figure 2 As shown, the dispersion transfer assembly 3 includes a rotating base 301, a telescopic component 303, an adjusting seat 302, a connecting cylinder 306, and an arc-shaped mesh plate 307. In this embodiment, the first mixer 2 and the second mixer 4 have different structures and functions. Functionally, the first mixer 2 is used to perform high-temperature initial mixing of materials containing carbon-based raw materials and high-molecular polymer matrices to obtain plasticized materials. The second mixer 4 is located downstream of the first mixer 2 and is used to receive the plasticized materials and perform low-temperature final mixing with functional additives. Structurally, a sliding pressure seat 201 is provided at the upper part of the first mixer 2, and a retractable and rotatable rotating base 301 is provided at the lower part of the first mixer 2. When material is added from the feeding port at the top of the mixer, the upper pressure seat 201 moves downward and presses down under the action of a driving device (such as a hydraulic system, an electric cylinder, or an electric hoist after the pressure seat 201 is configured). After the material is added, the pressure seat 201 can slide down under the drive, press down and completely seal the feeding port, and at the same time apply continuous pressure to the material in the cavity. At the same time, the adjusting seat 302 located at the bottom of the mixer is also in a closed state in the initial position. When the pressure seat 201 is pressed down and the bottom adjusting seat 302 is closed, the two together form a closed mixing cavity 203 inside the first mixer 2, which effectively prevents material volatilization loss and external pollutants from entering, and provides a closed mixing environment for the material.

[0030] Two sets of parallel mixing rollers 202 (rotors) are arranged inside the mixing chamber 203, and the two mixing rollers 202 are driven by a motor to rotate in opposite directions. During the mixing process, the motor drives the two rollers to rotate relative to each other at the same or a specific speed ratio. The polymer matrix and carbon-based fillers are dragged into the narrow gaps of the rollers, thus undergoing strong shearing, compression, and kneading. The continuous pressure applied by the upper pressure seat 201 increases the material filling density, forces the material to pass through the roller gap better, and improves the shearing efficiency and filler dispersion effect.

[0031] The rotating base 301 is adapted to be rotatably set at the discharge port of the first mixer 2. In the implementation structure, a rotating shaft is provided on the outer side of the rotating base 301. The rotating shaft is rotatably mounted on the external support 7. The first mixer 2 is fixed on the support 7. The rotating base 301 is driven to swing 90 degrees by a motor that is connected to the rotating shaft, thereby driving the internal adjusting seat 302 and the temporarily stored material to accurately align with the equipment interface of the next process.

[0032] The adjusting seat 302 is slidably fitted inside the rotating base 301. The telescopic component 303 is set on the rotating base 301 and connected to the adjusting seat 302, so that the adjusting seat 302 can slide relative to the rotating base 301. The adjusting seat 302 is adapted to be installed in the inner cavity of the rotating base 301 and can move up and down. When the rotating base 301 is docked with the first mixing machine 2, the adjusting seat 302 moves upward and can dock with the mixing chamber 203. When it moves downward, a receiving space is formed in the lower part of the mixing chamber 203, so that the material enters the rotating base 301.

[0033] The connecting cylinder 306 is located at the feed inlet of the second mixer 4. The arc-shaped mesh plate 307 is adapted to the adjusting seat 302 and is located at the inner end of the connecting cylinder 306. After the rotating base 301 rotates, it can dock with the connecting cylinder 306, allowing the adjusting seat 302 to move and slide into the connecting cylinder 306. The arc-shaped mesh plate 307 is fitted to the inner end of the connecting cylinder 306, and its contour is adapted to the adjusting seat 302, so that it can cooperate with the adjusting seat 302 when it is pushed forward. When the rotating base 301 rotates to a predetermined angle, its outlet can accurately dock with the feed inlet of the connecting cylinder 306. After docking, the adjusting seat 302 can be smoothly pushed forward along the axial direction of the connecting cylinder 306 and complete the translational feeding action under the drive of the telescopic member 303.

[0034] To precisely limit the travel distance of the adjusting seat 302, this embodiment provides a lower limit seat 311 inside the rotating base 301 and an upper limit seat 312 at the discharge port of the first mixing mill 2. The upper limit seat 312 and the lower limit seat 311 form the active range of the adjusting seat 302. Specifically, the lower limit seat 311 is provided inside the rotating base 301, and the upper limit seat 312 is correspondingly provided at the discharge port of the first mixing mill 2. The upper limit seat 312 and the lower limit seat 311 together define the safe sliding range of the adjusting seat 302, preventing it from overtraveling.

[0035] In a further implementation, pressure sensors can be configured on the upper limit seat 312 and the lower limit seat 311. When the adjusting seat 302 contacts and triggers the corresponding sensor during movement, the system can generate corresponding position feedback or control signals in real time, thereby achieving precise sensing and closed-loop control of the movement state of the adjusting seat 302. Figure 2-3 As shown, in this embodiment, driven by the telescopic member 303, the adjusting seat 302 can perform precise translational movement within the rotating base 301, specifically including the following working stages: During the mixing stage (closed mixing chamber 203), the telescopic component 303 extends, driving the adjusting seat 302 to move upward along the rotating base 301 until the sensor of the upper limit seat 312 is triggered, confirming that the closed position has been reached. At this time, the adjusting seat 302, the pressure seat 201, and the inner wall of the mixing chamber 203 form a closed space. The first mixing machine 2 further collects the feeding and pressure seat 201 positions and starts the operation of the first mixing machine 2.

[0036] Preparation stage (material receiving and positioning): The telescopic component 303 shortens, driving the adjusting seat 302 to slide downwards along the rotating base 301 until the lower limit seat 311 sensor is triggered, confirming that the material receiving position has been reached. At this time, the adjusting seat 302 and the rotating base 301 together form a sealed material receiving space, and the discharge of the first mixing machine 2 enters the material receiving space.

[0037] Transfer stage (rotation docking): After receiving the material, the drive mechanism (such as a servo motor) drives the rotating base 301 and its internal adjusting seat 302 to rotate together with the material. After rotating into position, feedback is obtained through a position sensor (or rotary encoder) to ensure that the discharge port of the rotating base 301 and the connecting cylinder 306 of the feed port of the second mixer 4 are precisely docked.

[0038] Pushing Phase (Extrusion Discharge): After the docking completion signal is given, the telescopic component 303 actuates again, pushing the adjusting seat 302 smoothly into the connecting cylinder 306 along the guide mechanism of the rotating base 301. During this process, the adjusting seat 302 continuously pushes the temporarily stored material through the arc-shaped mesh plate 307. The material is subjected to controllable shearing and dispersion when passing through the mesh plate, and finally enters the second mixing mill 4 evenly.

[0039] The pre-dispersed plasticized material, after passing through the dispersion and transfer component 3, is fed into the second mixer 4. The dispersed plasticized material is then mixed with added functional additives. By controlling the rotor speed and cooling system, the material is ensured to achieve uniform mixing under gentle shear force, resulting in a molecular-level uniform distribution of the functional additives within the polymer matrix. Finally, the mixture is fed into the granulator 6, which is connected to the discharge end of the second mixer 4, to form the final mixed material into granules.

[0040] In specific implementation, such as Figure 7 As shown, this embodiment also provides a method for manufacturing a high thermal conductivity Class C soft composite material, which specifically includes the following steps: S1. The initial material containing carbon-based raw materials and polymer matrix is ​​fed into the first mixer 2 via the first conveyor belt 1. The first conveyor belt 1 is located at a high position, such as on the second floor. The initial material is placed on the first conveyor belt 1 and enters the feed port of the first mixer 2. S2. In the first mixer 2, the material is subjected to high-temperature primary mixing at a temperature of 140℃-180℃ to obtain plasticized material. S3. Start the dispersing and transferring component 3 to transfer the plasticized material from the first mixer 2 to the second mixer 4. The transfer process specifically includes: starting the telescopic component 303 to move the adjusting seat 302 down along the rotating base 301, forming a receiving space in the rotating base 301, and the plasticized material entering the receiving space; then the rotating base 301 rotates and docks with the connecting cylinder 306 at the feed inlet of the second mixer 4; after docking, the adjusting seat 302, driven by the telescopic component 303, carries the plasticized material and moves it horizontally into the connecting cylinder 306; the temporarily stored plasticized material is forced through the mesh of the arc-shaped mesh plate 307 under the pressure of the adjusting seat 302; the material is subjected to shearing, compression and diversion when passing through the mesh; finally, it falls into the second mixer 4. S4. Add functional additives to the second mixer 4 and perform low-temperature final mixing at a temperature of 80℃-120℃ to obtain a uniform composite material mixture. S5. The composite material mixture from the second mixer 4 is received by the second conveyor belt 5 and conveyed to the feed inlet of the granulator 6. In practice, the tilting structure at the bottom of the second mixer 4 adopts the structure of the first mixer 2. The tilting structure is used to tilt the material into the receiving hopper of the second conveyor belt 5. The receiving hopper moves along the second conveyor belt 5 and tilts when it reaches the top, and the material enters the granulator 6. S6. In the pelletizer 6, the fed mixture is melt-extruded, cooled and pelletized to finally obtain a high thermal conductivity C-grade soft composite material.

[0041] Therefore, this embodiment integrates a dispersion and transfer assembly 3 consisting of a rotating base 301, an adjusting seat 302, and an arc-shaped mesh plate 307. This transforms the open and singular material transfer process in traditional processes into a closed, controllable process with dispersion capabilities. The dispersion and transfer assembly 3, located between the first mixer 2 and the second mixer 4, not only achieves precise docking and quantitative conveying of materials, but also actively disperses the carbon-based filler through shearing and extrusion when pushing materials through the arc-shaped mesh plate 307, effectively breaking up filler agglomeration. Simultaneously, in conjunction with the dynamic sealed mixing chamber 203 formed by the upper and lower pressure seats 201 and a sensor-based closed-loop control system, it realizes integrated and intelligent production throughout the entire process, from high-temperature initial mixing, closed transfer and dispersion, low-temperature final mixing to molding and granulation. This fundamentally solves the problems of large heat loss, uneven filler dispersion, and poor process integration in traditional methods, significantly improving the thermal conductivity, production efficiency, and product consistency of high thermal conductivity Class C soft composite materials. Example 2

[0042] In order to further improve the mixing effect of the functional additives added to the second mixer 4 and the plasticized material passing through the arc-shaped mesh plate 307, this embodiment has a functional additive adding device 404 connected to the arc-shaped mesh plate 307 to disperse the functional additives based on the arc-shaped mesh plate 307.

[0043] In specific implementation, such as Figure 4 As shown, the arc-shaped mesh plate 307 is provided with a main pipe 401 and branch pipes 402. The main pipe 401 is located in the middle of the arc-shaped mesh plate 307, and the branch pipes 402 are connected to the main pipe 401 and are located at the mesh connection points of the arc-shaped mesh plate 307. The main pipe 401 is connected to the functional additive adding device 404 of the second mixing machine 4. In specific connection, the interface of the main pipe 401 is connected to the flexible pipe 403, and the flexible pipe 403 is connected to the functional additive adding device 404 of the main pipe 401. In this embodiment, the main pipe 401 serves as the main channel, responsible for receiving functional additives (such as crosslinking agents and coupling agents) from the functional additive adding device 404 of the second mixing machine 4. Subsequently, the additives are directly transported to the various mesh connection points of the arc-shaped mesh plate 307 through multiple radially distributed branch pipes 402.

[0044] A slider 308 is provided on the arc-shaped mesh plate 307. A groove is provided on the inner wall of the connecting cylinder 306, and a positioning shaft 310 is provided in the groove. The slider 308 is adapted to be mounted on the positioning shaft 310. A spring 309 is provided between the end of the groove and the slider 308, and the spring 309 is fitted on the positioning shaft 310. When the adjusting seat 302 pushes the arc-shaped mesh plate 307 forward, the compression of the spring 309 can absorb part of the impact energy, ensuring that the initial stage of contact between the mesh plate and the material is flexible, thereby protecting the mechanism and the arc-shaped mesh plate 307. At the same time, the mesh plate can be adjusted according to the resistance of the material to ensure the smooth application of extrusion and shearing forces. This buffer structure allows the arc-shaped mesh plate 307 to move forward and enter the feed of the second mixer 4, ensuring that all the material falls into the second mixer 4. After feeding is completed, it retracts into the connecting cylinder 306, which facilitates the closing operation of the second mixer 4.

[0045] like Figure 5-6 As shown, a limiting block 314 is provided on the slider 308, and a limiting groove 313 is provided on the inner wall of the slide. A pressure switch 315 is provided on the inner side of the limiting groove 313. When the arc-shaped mesh plate 307 moves to the predetermined working position, the limiting block 314 triggers the pressure switch 315. When the arc-shaped mesh plate 307 reaches the predetermined working position under the push of the adjusting seat 302, the limiting block 314 on the slider 308 will move accordingly and trigger the pressure switch 315 provided in the limiting groove 313 on the inner wall of the slide. The pressure switch 315 transmits the generated signal to the central control system to confirm that the arc-shaped mesh plate 307 has been accurately positioned and to allow the system to perform the next operation, such as starting to inject functional additives through the integrated pipeline. In this embodiment, functional additives are added through the pipeline integrated into the arc-shaped mesh plate 307, so that the functional additives are homogenized and mixed with the material passing through the arc-shaped mesh plate 307. Example 3

[0046] In this embodiment, the annular sealing sleeve 304 on the rotating base 301 and the protective plate 305 set at the fixed interface cooperate with each other to form an efficient and reliable sealing system.

[0047] To ensure the overall structure's airtightness, such as Figure 2-3As shown, in this embodiment, an annular sealing sleeve 304 is fitted around the outer side of the rotating base 301. The outer contour of the sealing sleeve 304 is adapted to the feed inlet of the connecting cylinder 306 and the discharge outlet of the first mixer 2. A protective plate 305 is provided between the discharge outlet of the first mixer 2 and the connecting cylinder 306, and the protective plate 305 is adapted to fit snugly against the sealing sleeve 304. When the rotating base 301 rotates and switches positions, the sealing sleeve 304 moves accordingly, forming a continuous sealing ring between the rotating base 301 and the connecting cylinder 306. Its main function is to enhance the sealing effect at the interface and prevent leakage of positive pressure materials and intrusion of external contaminants under negative pressure conditions.

[0048] During implementation, the sealing sleeve 304 first seals the opening of the connecting cylinder 306. When rotating, due to the presence of the arc-shaped protective plate 305, the opening of the rotating base 301 will not be exposed to the environment, thus avoiding heat loss. As the rotating base 301 rotates, the sealing sleeve 304 can seal the opening of the first mixer 2. During implementation, the sealing performance between the connecting cylinder 306 and the first mixer 2 is ensured, and cross-contamination between the external environment and the first mixer 2, the connecting cylinder 306, and the external environment is avoided.

Claims

1. A processing apparatus for a high thermal conductivity Class C soft composite material, characterized in that: The system includes a first mixer, a second mixer, a dispersion and transfer assembly, and a granulator. The dispersion and transfer assembly includes a rotating base, a telescopic component, an adjusting seat, a connecting cylinder, and an arc-shaped screen. The rotating base is rotatably mounted at the discharge port of the first mixer. The adjusting seat is slidably fitted inside the rotating base. The telescopic component is mounted on the rotating base and connected to the adjusting seat, allowing the adjusting seat to slide relative to the rotating base. The connecting cylinder is located at the feed port of the second mixer. The arc-shaped screen is adapted to the adjusting seat and is located at the inner end of the connecting cylinder. After the rotating base rotates, it can dock with the connecting cylinder and allow the adjusting seat to be pushed and moved into the connecting cylinder; the granulator is connected to the discharge end of the second mixer and is used to form the final mixed material into granules.

2. The processing apparatus for high thermal conductivity C-grade soft composite materials according to claim 1, characterized in that: The first mixer is used to perform high-temperature initial mixing of materials containing carbon-based raw materials and high-molecular polymer matrix to obtain plasticized materials; the second mixer is located downstream of the first mixer and is used to receive the plasticized materials and perform low-temperature final mixing with functional additives.

3. The processing apparatus for high thermal conductivity C-grade soft composite materials according to claim 2, characterized in that: The arc-shaped mesh plate is provided with a main pipe and branch pipes. The main pipe is located in the middle of the arc-shaped mesh plate, and the branch pipes are connected to the main pipe and located at the mesh connection of the arc-shaped mesh plate. The main pipe is connected to the functional additive adding device of the second mixing machine.

4. The processing apparatus for high thermal conductivity Class C soft composite materials according to claim 1, characterized in that: The arc-shaped mesh plate is equipped with a slider, and a groove is provided on the inner wall of the connecting cylinder. A positioning shaft is provided in the groove, and the slider is adapted to be mounted on the positioning shaft. A spring is provided between the end of the groove and the slider, and the spring is fitted on the positioning shaft.

5. The processing apparatus for high thermal conductivity Class C soft composite materials according to claim 4, characterized in that: The slider is provided with a limit block, and the inner wall of the slide groove is provided with a limit groove. A pressure switch is provided on the inner side of the limit groove. When the arc-shaped mesh plate moves to the predetermined working position, the limit block triggers the pressure switch.

6. The processing apparatus for high thermal conductivity Class C soft composite materials according to claim 1, characterized in that: The outer side of the rotating base is fitted with an annular sealing sleeve, the outer contour of which is adapted to the feed inlet of the connecting cylinder and the discharge outlet of the first mixer.

7. The method for manufacturing the high thermal conductivity Class C soft composite material according to claim 6, characterized in that: A protective plate is provided between the discharge port of the first mixer and the connecting cylinder, and the protective plate is fitted and adapted to the sealing sleeve.

8. The processing apparatus for high thermal conductivity Class C soft composite materials according to claim 1, characterized in that: The rotating base is provided with a lower limit seat, and the discharge port of the first mixing machine is provided with an upper limit seat. The upper limit seat and the lower limit seat form an adjustable range.

9. A method for manufacturing a high thermal conductivity Class C flexible composite material, applied to the processing apparatus according to any one of claims 1-9, characterized in that: Includes the following steps: S1. The initial material containing carbon-based raw materials and polymer matrix is ​​fed into the first mixer via the first conveyor belt; S2. In the first mixer, the material is subjected to high-temperature primary mixing at a temperature of 140℃-180℃ to obtain plasticized material. S3. Activate the dispersive transfer assembly to transfer the plasticized material from the first mixer to the second mixer. The transfer process specifically includes: activating the telescopic component to move the adjusting seat down along the rotating base, forming a receiving space within the rotating base, into which the plasticized material enters; subsequently, the rotating base rotates and connects with the connecting cylinder at the feed inlet of the second mixer; after connection, the adjusting seat, driven by the telescopic component, carries the plasticized material and moves it horizontally into the connecting cylinder; the temporarily stored plasticized material is forced through the mesh of the arc-shaped mesh plate under the pressure of the adjusting seat; the material is subjected to shearing, compression, and diversion effects as it passes through the mesh; finally, it falls into the second mixer. S4. Add functional additives to the second mixer and perform low-temperature final mixing at 80℃-120℃ to obtain a uniform composite material mixture. S5. Receive the composite material mixture from the second mixer via the second conveyor belt and transport it to the feed inlet of the granulator; S6. In the pelletizer, the conveyed mixture is melt-extruded, cooled and pelletized to finally obtain a high thermal conductivity C-grade soft composite material.

10. The method for manufacturing the high thermal conductivity Class C soft composite material according to claim 9, characterized in that: Functional additives are added through pipes integrated into the arc-shaped mesh plate, allowing the functional additives to be homogenized and mixed with the materials passing through the arc-shaped mesh plate.

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