New material preparation system with multi-stage dispersion and constant-temperature viscosity control structure

Abstract

The invention relates to the technical field of new material preparation equipment, and discloses a new material preparation system with a multi-stage dispersion and constant-temperature viscosity control structure, which comprises a mixing hopper, a feeding mechanism, a screw extruder, an extruder, a conveyor, a crusher and a grinder. A first dispersing mechanism capable of working forwards and backwards is arranged in the mixing hopper, so that circulating dispersion and mixing of raw materials are realized, and the feeding mechanism is driven to complete feeding during reverse rotation; and a liftable second dispersing mechanism is arranged in the hopper of the screw extruder and is used for dispersing the raw materials again and controlling discharging. The heating assembly and the cooling assembly are arranged on the outer side of the extrusion barrel in a staggered mode, and multi-point temperature detection is combined, so that constant-temperature soaking and viscosity stable control in the extrusion process are achieved. Through the structural design of multi-stage dispersion and constant-temperature viscosity control, the raw material mixing uniformity and extrusion stability are improved, the structure is compact, the process integration degree is high, and the continuous preparation device is suitable for continuous preparation of new materials.

Description

Technical Field

[0001] This invention belongs to the field of new material preparation technology, specifically relating to a new material preparation system with a multi-level dispersion and constant temperature controlled viscosity structure. Background Technology

[0002] With the continuous development of new materials technology, functional polymer materials, composite materials, and modified materials are increasingly widely used in fields such as construction, electronics, chemical industry, and new energy. The preparation of these new materials typically requires the thorough mixing and uniform dispersion of various raw materials with different physical and chemical properties in a predetermined ratio. Furthermore, these materials must maintain a stable molten state and viscosity characteristics during subsequent extrusion, molding, and pulverization processes to ensure the consistency and stability of the final material's performance.

[0003] Existing new material preparation systems mostly employ single-stage stirring or simple mixing structures to premix raw materials. When dealing with raw materials with significant differences in particle size, density, or agglomeration, these structures often suffer from insufficient dispersion and inadequate mixing uniformity. This can easily lead to localized component segregation during subsequent extrusion, thus affecting the mechanical and performance properties of the finished material. Furthermore, some existing equipment requires separate feeding mechanisms or multiple power units for raw material conveying and redispersing, increasing both system complexity and manufacturing and operating costs.

[0004] Furthermore, in the melt extrusion stage of new materials, existing extrusion equipment mostly relies on a single heating method to control the temperature of the extrusion barrel. This relatively limited temperature regulation means that localized overheating or underheating is prone to occur. When the local temperature of the extrusion barrel is too high, the raw material is susceptible to thermal degradation; conversely, when the local temperature is too low, the raw material will not melt sufficiently, increasing viscosity and thus affecting extrusion stability and subsequent molding quality. Especially in continuous production processes, temperature fluctuations have a more significant impact on material viscosity and flowability, making it difficult to meet the requirements for precise control of the melt state.

[0005] Meanwhile, in some existing new material preparation processes, after the raw materials have completed the initial mixing and extrusion, they often still need to go through multiple processes such as crushing and grinding to form particles or powders that meet the requirements. However, the connection between each process is insufficient, the overall process integration is low, and it is easy to cause problems such as low production efficiency, frequent material transfer and increased energy consumption. Summary of the Invention

[0006] To address the problems existing in the prior art, the purpose of this invention is to provide a new material preparation system with a multi-level dispersion and constant temperature viscosity control structure. This system can achieve multi-level dispersion mixing, compact structure, and constant temperature viscosity control, thereby improving the raw material mixing quality, extrusion stability, and overall efficiency of new material preparation.

[0007] To achieve the above objectives, the present invention provides the following technical solution: A novel material preparation system with multi-stage dispersion and constant temperature viscosity control includes a mixing hopper for mixing raw materials, a screw extruder for melt extrusion of raw materials, a feeding mechanism for feeding raw materials to the screw extruder, an extruder for extruding the melt into sheets, a conveyor for conveying the sheet material, a crusher for crushing the sheet material, and a grinder for grinding the crushed material into powder. A first dispersion mechanism is installed at the upper port of the mixing hopper to push the raw materials inside upward and uniformly disperse and stir them. The working part of the first dispersion mechanism can be extended and retracted downward. When the working part of the first dispersion mechanism is extended downward, it is connected to the working part of the feeding mechanism. The first dispersion mechanism rotates in the opposite direction to drive the feeding mechanism to feed the raw materials. The first dispersion mechanism also rotates in the opposite direction to push the raw materials downward and uniformly disperse and stir them. The screw extruder is equipped with a hopper that works in conjunction with the feeding mechanism. A second dispersion mechanism is installed at the upper end of the hopper to further disperse and stir the raw materials inside. The second dispersion mechanism can be raised and lowered on the hopper. When the second dispersion mechanism is lowered, it blocks the discharge port of the hopper and further disperses and stirs the raw materials evenly. The screw extruder includes an extrusion barrel. A heating component for uniformly heating the extrusion barrel and a cooling component for uniformly cooling the extrusion barrel are fitted on the outside of the extrusion barrel. The heating components of the heating component and the cooling components of the cooling component are arranged alternately. The outer sides of the heating component and the cooling component are covered with a shell consisting of upper and lower parts. Several temperature sensors for detecting the temperature of the extrusion barrel are fixed on the upper side of the shell. The several temperature sensors are evenly arranged from left to right.

[0008] Furthermore, the feeding mechanism includes a guide pipe, one end of which is fixedly connected to a discharge cylinder installed on the hopper, and the other end of the guide pipe is fixedly connected to the bottom of the mixing hopper. Screw blades are provided on the inner side of the guide pipe.

[0009] Furthermore, a fixing frame is fixed to the inner side of the mixing hopper near the lower side, and a connector is rotatably installed at the center of the fixing frame. The lower end of the connector is fixedly connected to the auger blade, and a square column is provided at the upper end of the connector.

[0010] Furthermore, the first dispersing mechanism includes a first support frame fixed to the upper end of the mixing hopper and a first transmission rod disposed inside the mixing hopper. A first motor is fixed to the upper side of the first support frame. The lower end of the output shaft of the first motor is fixedly connected to the first transmission rod through a telescopically adjustable transmission joint. A spiral blade and several evenly distributed stirring rods are fixed on the first transmission rod. A square sleeve is opened at the lower end of the first transmission rod.

[0011] Furthermore, the transmission joint includes a square connecting sleeve fixedly connected to the output shaft of the first motor and a square adjusting rod fixedly connected to the first transmission rod. The upper end of the adjusting rod is inserted into the inner side of the connecting sleeve, and an adjusting screw is fixed on the side of the adjusting rod near the upper end. A guide opening is provided on the side of the connecting sleeve to allow the adjusting screw to move and make way.

[0012] Furthermore, the second dispersing mechanism includes a second support frame that can be raised and lowered and an additional second transmission rod disposed inside the hopper. A second motor that is fixedly connected to the second transmission rod is fixed on the upper side of the second support frame. Several stirring blades are fixed on the second transmission rod, and a circular stop block is fixed at the lower end of the second transmission rod. A circular discharge port is provided at the bottom inner side of the hopper.

[0013] Furthermore, the second support frame includes a horizontal section for mounting the second motor, one end of which is fixed to a downward vertical section. An adjusting plate is fixed to the lower end of the vertical section of the second support frame, and a guide sleeve fixed to the side of the hopper is fitted on the outer side of the vertical section of the second support frame. A support plate is fixed to the side of the guide sleeve, and an adjusting screw threaded through the adjusting plate is rotatably mounted on the support plate.

[0014] Furthermore, the heating assembly includes several electric heating tubes sleeved on the outside of the extrusion cylinder and a fixed base located on one side of the extrusion cylinder. The ends of the electric heating tubes are connected to electrical connectors, which are fixed to the fixed base.

[0015] Furthermore, the cooling assembly includes cooling pipes arranged alternately with the electric heating pipes and an air box located on one side of the extrusion cylinder. The cooling pipes are divided into upper and lower groups, and the air inlet ends of both groups of cooling pipes are connected to the air box. A mounting bracket fixed to the screw extruder is provided on the lower side of the air box, and several fans connected to the air box are fixed on the mounting bracket.

[0016] Compared with the prior art, the beneficial effects of the present invention are: To address the problem of insufficient dispersion and uneven mixing that easily occurs when raw materials have large differences in particle size and significant differences in physical properties during the preparation of new materials, this technical solution sets up a first dispersion mechanism with forward and reverse dispersion capabilities in the mixing hopper. This allows the raw materials to form an up-and-down circulating flow path during the mixing stage, achieving multi-directional movement and full contact of the raw materials. This effectively improves the agglomeration of raw materials in the initial mixing stage, enhances the dispersion uniformity of various raw materials in the mixing hopper, and provides a stable material basis for subsequent processing.

[0017] To address the problem that existing preparation systems have independent mixing and feeding processes, requiring an additional power source to drive the feeding mechanism, resulting in complex structures and high costs, this technical solution directly drives the feeding mechanism for conveying by rotating the first dispersing mechanism in reverse. This links the mixing and feeding processes, ensuring the raw materials are redispersed while completing the feeding operation. This reduces the need for independent driving components, simplifies the structure, and lowers the manufacturing and operating costs of the equipment.

[0018] To address the issue that raw materials may still experience localized component segregation and uneven dispersion before entering the extrusion stage, thus affecting extrusion stability, this technical solution incorporates a liftable second dispersion mechanism within the hopper of the screw extruder. This mechanism further disperses and shears the raw materials before they enter the extrusion zone and effectively seals the discharge port during the dispersion process, preventing the raw materials from prematurely entering the extrusion zone and significantly improving the uniformity of the raw materials entering the extrusion stage.

[0019] To address the issues of insufficient temperature control precision and large local temperature differences leading to fluctuations in melt viscosity in existing extrusion equipment, this technical solution simultaneously installs heating and cooling components on the outside of the extrusion barrel, employing a staggered arrangement in conjunction with multi-point temperature detection. This ensures that the extrusion barrel maintains a constant and uniform temperature under dynamic adjustment of heating and cooling, effectively avoiding local overheating or underheating, and guaranteeing the melt stability and viscosity consistency of the raw material during the extrusion process.

[0020] To address the issues of fragmented processes, insufficient process connectivity, and low production efficiency in the continuous preparation of new materials, this technical solution integrates processes such as mixing, dispersing, feeding, extrusion, molding, conveying, crushing, and grinding into the same preparation system. This allows raw materials to be processed step by step in a continuous process, reducing intermediate transfers and repetitive operations, and improving the overall efficiency of new material preparation and the stability of finished product quality. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the mixing hopper and screw extruder of the present invention. Figure 3 This is a schematic diagram of the internal structure of the screw extruder of the present invention; Figure 4 This is a schematic diagram of the feeding mechanism of the present invention; Figure 5 This is a schematic diagram of the first dispersing mechanism of the present invention; Figure 6 This is a schematic diagram of the transmission joint of the present invention; Figure 7 This is a schematic diagram of the second dispersing mechanism of the present invention; Figure 8 This is a schematic diagram of the heating assembly of the present invention; Figure 9 This is a schematic diagram of the cooling assembly of the present invention.

[0022] The attached diagram lists the components represented by each number as follows: 1. Mixing hopper; 11. First dispersing mechanism; 111. First motor; 112. Transmission joint; 1121. Connecting sleeve; 1122. Guide opening; 1123. Adjusting screw; 1124. Adjusting rod; 113. First support frame; 114. First transmission rod; 115. Stirring rod; 116. Spiral blade; 12. Connector; 13. Fixing frame; 2. Feeding mechanism; 21. Screw blade; 22. Guide pipe; 23. Discharge cylinder; 3. Screw extruder; 31. Second dispersing mechanism; 311. Second motor; 312. Second... 313. Support frame; 314. Guide sleeve; 315. Adjusting screw; 316. Support plate; 317. Adjusting plate; 318. Second transmission rod; 319. Stirring blade; 32. Stop block; 33. Hopper; 34. Housing; 35. Temperature sensor; 36. Extrusion cylinder; 37. Heating assembly; 361. Electric heating tube; 362. Fixing base; 363. Power connection base; 37. Cooling assembly; 371. Cooling tube; 372. Air box; 373. Fan; 374. Mounting bracket; 4. Extruder; 5. Conveyor; 6. Crusher; 7. Grinding mill. Detailed Implementation

[0023] To make the objectives and advantages of this invention clearer, the invention will be specifically described below with reference to embodiments. It should be understood that the following text is merely used to describe one or more specific embodiments of the invention and does not strictly limit the scope of protection specifically claimed by the invention. Example

[0024] like Figure 1 As shown, a novel material preparation system with a multi-stage dispersion and constant-temperature viscosity control structure includes a mixing hopper 1 for mixing raw materials, a screw extruder 3 for melt extrusion of raw materials, a feeding mechanism 2 for feeding raw materials to the screw extruder 3, an extruder 4 for extruding the melt into sheets, a conveyor 5 for conveying the sheet material, a crusher 6 for crushing the sheet material, and a grinder 7 for grinding the crushed material into powder. Addressing the problems of uneven mixing, insufficient dispersion, and poor continuity of subsequent processing steps that easily occur in existing new material preparation processes when raw material particle size differences and physical properties are inconsistent, this system integrates the mixing, dispersion, extrusion, molding, crushing, and grinding processes into a single system. This allows for continuous processing of raw materials within the same preparation system, structurally reducing intermediate transfer links and improving overall preparation efficiency and material consistency.

[0025] like Figure 2As shown, a first dispersion mechanism 11 is installed at the upper port of the mixing hopper 1 to push the raw materials inside upward and evenly disperse and stir them. The working part of the first dispersion mechanism 11 can be extended and retracted downward. When the working part of the first dispersion mechanism 11 extends downward, it is connected to the working part of the feeding mechanism 2. The first dispersion mechanism 11 rotates in the opposite direction to drive the feeding mechanism 2 to feed the raw materials. The first dispersion mechanism 11 also pushes the raw materials downward and evenly disperses and stirs them. In view of the problem that the existing mixing equipment can only stir in one direction and the raw material circulation path is single, resulting in insufficient dispersion, the first dispersion mechanism 11 realizes the forward and reverse pushing and circulation of the raw materials, so that the raw materials form an up and down circulating dispersion path in the mixing hopper 1. After completing the initial dispersion, it can also directly provide power to the feeding mechanism 2, thereby simplifying the structure and reducing costs.

[0026] The screw extruder 3 is equipped with a hopper 32 that cooperates with the feeding mechanism 2. A second dispersion mechanism 31 is installed at the upper port of the hopper 32 to further disperse and stir the raw materials inside. The second dispersion mechanism 31 can be raised and lowered on the hopper 32. When the second dispersion mechanism 31 descends, it blocks the discharge port of the hopper 32 and further disperses and stirs the raw materials evenly. In view of the problem that the raw materials may still have local agglomeration and uneven component distribution before entering the extrusion stage, by setting up a second dispersion mechanism 31 that can be raised and lowered in the hopper 32, the raw materials undergo forced dispersion and shearing treatment again before entering the screw extruder 3. During the dispersion process, the discharge port is blocked to prevent the raw materials from entering the extrusion zone in advance and affecting the dispersion effect.

[0027] like Figure 3 As shown, the screw extruder 3 includes an extrusion barrel 35. A heating component 36 for uniformly heating the extrusion barrel 35 and a cooling component 37 for uniformly cooling the extrusion barrel 35 are fitted around its outer side. The heating components of the heating component 36 and the cooling components of the cooling component 37 are arranged alternately. A housing 33 consisting of upper and lower parts is provided on the outer side of the heating component 36 and the cooling component 37. Several temperature sensors 34 for detecting the temperature of the extrusion barrel 35 are fixed on the upper side of the housing 33. These temperature sensors 34 are evenly arranged from left to right. Addressing the problem of single temperature control methods and large local temperature differences leading to fluctuations in melt viscosity in existing extrusion equipment, the alternating arrangement of the heating component 36 and the cooling component 37, combined with real-time detection by the temperature sensors 34, enables precise sensing and adjustment of the temperature at different locations on the extrusion barrel 35. Structurally, this ensures that the extrusion barrel 35 is in a constant and uniform heating state, preventing insufficient melting or overheating and degradation.

[0028] like Figure 4As shown, the feeding mechanism 2 includes a guide pipe 22, one end of which is fixedly connected to a discharge cylinder 23 installed on the hopper 32, and the other end of the guide pipe 22 is fixedly connected to the bottom of the mixing hopper 1. An auger blade 21 is provided on the inner side of the guide pipe 22. In view of the problem that traditional feeding mechanisms require independent driving and have complex structures, by setting the auger blade 21 in the guide pipe 22, the raw materials can be synchronously transported into the hopper 32 when the first dispersing mechanism 11 rotates in the reverse direction, so as to realize the integrated linkage of mixing and feeding.

[0029] like Figure 4 As shown, a fixing frame 13 is fixed to the inner side of the mixing hopper 1 near the lower side. A connector 12 is rotatably installed at the center of the fixing frame 13. The lower end of the connector 12 is fixedly connected to the auger blade 21, and the upper end of the connector 12 is provided with a square column. In order to address the problems of slippage and unstable transmission during power transmission, the fixing frame 13 provides stable support for the connector 12, and the square column structure of the connector 12 is used to achieve reliable engagement with the first transmission rod 114, thereby ensuring the stable rotation of the auger blade 21 under different working conditions.

[0030] like Figure 5 As shown, the first dispersion mechanism 11 includes a first support frame 113 fixed to the upper end of the mixing hopper 1 and a first transmission rod 114 disposed inside the mixing hopper 1. A first motor 111 is fixed to the upper side of the first support frame 113. The lower end of the output shaft of the first motor 111 is fixedly connected to the first transmission rod 114 through a telescopically adjustable transmission joint 112. A spiral blade 116 and several evenly distributed stirring rods 115 are fixed on the first transmission rod 114. A square sleeve is opened at the lower end of the first transmission rod 114. In order to address the problem that raw materials are prone to local accumulation and circulation dead zones in the mixing hopper 1, the spiral blade 116 realizes axial movement of the raw materials, and the stirring rods 115 realize radial stirring and dispersion. The adjustable structure of the first transmission rod 114 provides a structural basis for subsequent power coupling with the feeding mechanism 2.

[0031] like Figure 6 As shown, the transmission joint 112 includes a square connecting sleeve 1121 fixedly connected to the output shaft of the first motor 111 and a square adjusting rod 1124 fixedly connected to the first transmission rod 114. The upper end of the adjusting rod 1124 is inserted into the inner side of the connecting sleeve 1121, and an adjusting screw 1123 is fixed on the side of the adjusting rod 1124 near the upper end. The side of the connecting sleeve 1121 is provided with a guide opening 1122 for moving and making way for the adjusting screw 1123. In view of the problems of inconvenient adjustment and poor adaptability of traditional transmission structures, the first transmission rod 114 can be stably locked at different height positions by the cooperation of the adjusting screw 1123 and the guide opening 1122, thereby meeting the usage requirements of different dispersion stages and power transmission stages.

[0032] like Figure 7 As shown, the second dispersion mechanism 31 includes a second support frame 312 that can be raised and lowered and an adjustable second transmission rod 317 disposed in the hopper 32. A second motor 311 fixedly connected to the second transmission rod 317 is fixed on the upper side of the second support frame 312. Several stirring blades 318 are fixed on the second transmission rod 317, and a circular stop block 319 is fixed at the lower end of the second transmission rod 317. A circular discharge port is provided at the bottom inner side of the hopper 32. To address the problems of insufficient dispersion of raw materials before extrusion and uncontrollable discharge, the stirring blades 318 are driven by the second transmission rod 317 to perform forced shearing and dispersion of the raw materials, and the stop block 319 is used to selectively block or open the discharge port, thereby achieving coordinated control of dispersion and discharge.

[0033] like Figure 7 As shown, the second support frame 312 includes a horizontal section for mounting the second motor 311. One end of the horizontal section is fixed to a downward vertical section. An adjusting plate 316 is fixed to the lower end of the vertical section of the second support frame 312. A guide sleeve 313 fixed to the side of the hopper 32 is fitted on the outer side of the vertical section of the second support frame 312. A support plate 315 is fixed to the side of the guide sleeve 313. An adjusting screw 314 threaded through the adjusting plate 316 is rotatably mounted on the support plate 315. To address the problem of insufficient lifting stability of the second dispersing mechanism 31, the guide sleeve 313 guides and restricts the second support frame 312, and the adjusting screw 314 drives the adjusting plate 316 to achieve precise lifting, thereby ensuring reliable cooperation between the stop block 319 and the discharge port.

[0034] like Figure 8 As shown, the heating assembly 36 includes several electric heating tubes 361 sleeved on the outside of the extrusion cylinder 35 and a fixed seat 362 located on one side of the extrusion cylinder 35. The ends of the electric heating tubes 361 are connected to a power connector 363, which is fixed on the fixed seat 362. To address the problem of uneven extrusion heating, multiple electric heating tubes 361 are distributed along the circumference and axial direction of the extrusion cylinder 35 to achieve uniform heating of the extrusion cylinder 35, and a stable power supply is achieved through the fixed seat 362 and the power connector 363.

[0035] like Figure 9As shown, the cooling assembly 37 includes cooling pipes 371 arranged alternately with the electric heating pipes 361 and an air box 372 disposed on one side of the extrusion cylinder 35. The cooling pipes 371 are divided into upper and lower groups, and the air inlet ends of both groups of cooling pipes 371 are connected to the air box 372. A mounting bracket 374 fixed on the screw extruder 3 is provided on the lower side of the air box 372. Several fans 373 connected to the air box 372 are fixed on the mounting bracket 374. To address the problem of excessively high local temperatures during the extrusion process, the fans 373 send air to the air box 372 and cool the extrusion cylinder 35 in sections through the cooling pipes 371, so that the heating assembly 36 and the cooling assembly 37 form a dynamic balance, thereby achieving stable control of the viscosity of the molten raw material. Example

[0036] See Figure 1 , Figure 2 and Figure 5 A novel material preparation system with multi-stage dispersion and constant temperature viscosity control structure is applied in practical applications. Powdered or granular raw materials of different particle sizes and densities are added to the mixing hopper 1 in a set ratio. Addressing the problem of agglomeration and accumulation of raw materials in the initial mixing stage, the system activates a first motor 111 to drive a first transmission rod 114. The first transmission rod 114 drives a spiral blade 116 and multiple stirring rods 115 to rotate synchronously. The spiral blade 116 exerts an axial pushing effect on the raw materials, causing them to circulate upwards along the inner wall of the mixing hopper 1. The stirring rods 115 exert a radial disturbance effect on the raw materials, ensuring sufficient contact and dispersion between different materials. This creates a dispersion path within the mixing hopper 1 that circulates vertically and disturbs in multiple directions, significantly improving the dispersion uniformity of the raw materials in the initial mixing stage. The first transmission rod 114 is made of 45# steel, while the stirring rods 115 and spiral blades 116 are made of wear-resistant stainless steel to adapt to long-term continuous mixing conditions.

[0037] Using a traditional mixing hopper structure with only a unidirectional stirring paddle, under the same raw material ratio and mixing time conditions, obvious particle agglomeration can still be observed in the raw materials after mixing. After entering the extrusion process, composition fluctuations occur, indicating that the multidirectional circulating dispersion structure described in this embodiment has a significant advantage in improving the initial mixing uniformity. Example

[0038] See Figure 2 , Figure 4 , Figure 5 and Figure 6After the initial dispersion of the raw materials is completed, the adjusting screw 1123 is loosened, allowing the adjusting rod 1124 to slide downward relative to the connecting sleeve 1121, thereby driving the first transmission rod 114 to descend as a whole, so that the square sleeve at the lower end of the first transmission rod 114 can reliably engage with the square column at the upper end of the connector 12; then the adjusting screw 1123 is tightened to lock it, and the first motor 111 rotates in the reverse direction, driving the first transmission rod 114 to rotate in the reverse direction, and the connector 12 drives the auger blade 21 to rotate in the guide pipe 22, so that the raw materials in the mixing hopper 1 are continuously transported to the hopper 32 while being mixed and dispersed in the reverse direction, thus completing the feeding process without setting up an additional independent power source; the connector 12 is made of tempered steel, and the auger blade 21 is made of wear-resistant alloy steel to ensure the stability of power transmission.

[0039] The preparation system using a traditional independent motor-driven feeding mechanism has an increased number of motors, a more complex control structure, more potential failure points, and significantly higher operating costs than the embodiment in achieving the same feeding capacity. This demonstrates that the mixing and feeding linkage scheme in the embodiment is feasible in terms of structural simplification and cost control. Example

[0040] See Figure 2 and Figure 7 When the raw material enters the hopper 32 through the feeding mechanism 2, the adjusting screw 314 rotates, driving the adjusting plate 316 to move upward along the guide sleeve 313, causing the second support frame 312 to descend as a whole. The stop block 319 at the lower end of the second transmission rod 317 blocks the discharge port at the bottom of the hopper 32. Then, the second motor 311 is started, driving the second transmission rod 317 to rotate. The second transmission rod 317 drives multiple stirring blades 318 to forcibly shear and redisperse the raw material in the hopper 32, thereby breaking up large particles in the raw material and eliminating the problem of uneven component distribution. The stirring blades 318 are made of high-strength stainless steel, and the second transmission rod 317 is made of alloy steel.

[0041] In a preparation system without a second dispersion mechanism, the raw material enters the extrusion zone directly, resulting in localized uneven melting and pressure fluctuations during the extrusion process. This indicates that the re-dispersion treatment before extrusion in this embodiment can effectively improve the uniformity of the raw material when it enters the extrusion stage. Example

[0042] See Figure 3 , Figure 8 and Figure 9After the raw material enters the extrusion cylinder 35, it is heated in sections by multiple electric heating tubes 361. The electric heating tubes 361 are 220V industrial heating tubes and are evenly distributed on the outside of the extrusion cylinder 35. When the temperature sensor 34 detects that the temperature at a certain position exceeds the set threshold, the corresponding fan 373 is started. The fan 373 sends air into the air box 372 and cools the extrusion cylinder 35 in a directional manner through the cooling pipe 371, so that the extrusion cylinder 35 maintains a temperature balance in the axial and circumferential directions, thereby stabilizing the flow viscosity of the molten raw material. The extrusion cylinder 35 is made of high-temperature resistant alloy steel, and the cooling pipe 371 is made of aluminum alloy.

[0043] The extrusion system using only electric heating elements exhibited localized overheating and melt viscosity fluctuations during continuous operation, demonstrating the significant feasibility of the heating and cooling synergistic control method described in this embodiment for constant temperature and viscosity control. Example

[0044] See Figure 1 After the extrusion process is completed, the screw extruder 3 continuously feeds the molten material into the extruder 4, which extrudes the molten material into a sheet structure. The sheet material is then conveyed by the conveyor 5 to the crusher 6 for primary crushing, and then enters the grinder 7 for fine grinding, finally forming a new material powder with uniform particle size. The equipment is arranged in sequence according to the process and is continuously connected by the conveying method, thereby reducing intermediate transfer and manual intervention and improving the overall preparation efficiency. The conveyor 5 adopts a heat-resistant conveyor belt, the crusher 6 adopts a hammer crushing structure, and the grinder 7 adopts a high-speed grinding disc structure.

[0045] The production method using decentralized equipment and independent operation requires multiple manual material transfers, resulting in unstable production cycle and large fluctuations in finished product quality. This demonstrates that the systematic integration scheme described in this embodiment has good engineering feasibility in terms of continuous preparation and quality stability.

[0046] The working principle of this invention is as follows: When preparing new materials, multiple raw materials are poured into the inner side of the mixing hopper 1 in proportion. At this time, the first motor 111 is started to drive the transmission joint 112 to drive the first transmission rod 114 to rotate. The first transmission rod 114 then drives the stirring rod 115 and the spiral blade 116 to rotate. The stirring rod 115 rotates and stirs to disperse and mix the raw materials. The spiral blade 116 continuously pushes the raw materials upward to make the raw materials continuously circulate and mix, thereby completing the dispersion and mixing of the raw materials. After the initial mixing of the raw materials is completed, the adjusting screw 1123 is loosened, causing the adjusting rod 1124 to descend, which in turn drives the first transmission rod 114 to descend. At this time, the sleeve at the lower end of the first transmission rod 114 is fitted onto the square column at the upper end of the connector 12. Then, the adjusting screw 1123 is tightened to fix it. At this time, the first motor 111 is started to rotate in the opposite direction. The first motor 111 rotates in the opposite direction, which drives the first transmission rod 114 to rotate in the opposite direction. At this time, the stirring rod 115 continues to stir and mix, while the spiral blade 116 pushes the raw materials downward, thereby ensuring the further dispersion and uniform mixing of the raw materials. When the first transmission rod 114 rotates in the reverse direction, it drives the auger blade 21 to rotate and, together with the guide pipe 22, discharges the original material that was mixed again into the inner side of the feed hopper 32 through the discharge cylinder 23. At this time, there is no need to set up a separate power source to drive the feeding mechanism 2 to feed the material, which simplifies the structure and saves costs. When the raw material enters the hopper 32, the second motor 311 is started to drive the second transmission rod 317 to rotate. The rotating second transmission rod 317 drives multiple stirring blades 318 to disperse and mix the raw material evenly again. At the same time, it shears and crushes the larger particles in the raw material, thereby completing the multi-stage dispersion and mixing process of the raw material and ensuring the uniform mixing of various components of the raw material. After the raw materials are dispersed and mixed, the adjusting screw 314 drives the adjusting plate 316 to lift the second support frame 312 and the second motor 311 and the second transmission rod 317. The second transmission rod 317 then lifts the stop block 319 to open the discharge port of the hopper 32. The raw materials then enter the inside of the extrusion cylinder 35 and are extruded to the right by the extrusion screw. At this time, multiple evenly arranged electric heating tubes 361 heat the extrusion cylinder 35 evenly and melt the raw materials. When the temperature sensor 34 detects that the temperature of the extrusion cylinder 35 is too high, the fan 373 is started to blow air into the air box 372 and send it to each cooling tube 371 to cool the extrusion cylinder 35 evenly. This ensures that the extrusion cylinder 35 is in a constant temperature and uniform heat state, avoiding the situation of high melt viscosity caused by local low temperature, thus completing the constant temperature and viscosity control. The molten material extruded by screw extruder 3 is extruded into sheets by extruder 4 and crushed into granules by conveyor 5 and rosin crusher 6. Finally, it is ground into powder by grinder 7, thus completing the preparation of the new material.

[0047] The above description is merely a preferred embodiment of the present invention. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principles of the present invention, and these improvements and modifications should also be considered within the scope of protection of the present invention. Structures, devices, and operating methods not specifically described or explained in this invention are implemented according to conventional methods in the art unless otherwise specified or limited.

Claims

1. A new material preparation system with multi-stage dispersion and constant temperature control viscosity structure, comprising a mixing hopper (1) for mixing raw materials, a screw extruder (3) for melting and extruding the raw materials, a feeding mechanism (2) for feeding the raw materials to the screw extruder (3), an extruder (4) for extruding the melt into a sheet shape, a conveyor (5) for conveying the sheet-shaped material, a crusher (6) for crushing the sheet-shaped material, and a grinder (7) for grinding the crushed material into powder, characterized in that: The upper end of the mixing hopper (1) is provided with a first dispersion mechanism (11) for stirring and uniformly dispersing the raw materials in the mixing hopper (1), the working part of the first dispersion mechanism (11) can be telescopically adjusted downward, and the working part of the first dispersion mechanism (11) is in transmission connection with the working part of the feeding mechanism (2) when it is telescopically extended downward, the first dispersion mechanism (11) drives the feeding mechanism (2) to feed when it rotates reversely, and the first dispersion mechanism (11) stirs and uniformly disperses the raw materials downward when it rotates reversely; The screw extruder (3) is provided with a hopper (32) matched with the feeding mechanism (2), the upper end of the hopper (32) is provided with a second dispersion mechanism (31) for stirring and uniformly dispersing the raw materials in the hopper (32), the second dispersion mechanism (31) can be telescopically adjusted upward and downward, and the second dispersion mechanism (31) blocks the discharge port of the hopper (32) and stirs and uniformly disperses the raw materials again when it is telescopically adjusted downward. The screw extruder (3) comprises an extrusion cylinder (35), the outer side of the extrusion cylinder (35) is provided with a heating assembly (36) for uniformly heating the extrusion cylinder (35) and a cooling assembly (37) for uniformly cooling the extrusion cylinder (35), the heating parts of the heating assembly (36) and the cooling parts of the cooling assembly (37) are staggered, the outer side of the heating assembly (36) and the cooling assembly (37) is provided with a sleeve shell (33) composed of two parts, the upper side of the sleeve shell (33) is fixedly provided with a plurality of temperature sensors (34) for detecting the temperature of the extrusion cylinder (35), and the plurality of temperature sensors (34) are uniformly arranged from left to right.

2. The new material preparation system with multi-stage dispersion and constant temperature controlled viscosity structure according to claim 1, characterized in that: The feeding mechanism (2) comprises a guide pipe (22), one end of the guide pipe (22) is fixedly provided with a discharge cylinder (23) installed on the hopper (32), and the other end of the guide pipe (22) is fixedly connected with the bottom of the mixing hopper (1), and the inner side of the guide pipe (22) is provided with an auger blade (21).

3. The system for preparing new materials with multi-stage dispersion and constant temperature controlled viscosity structure according to claim 2, characterized in that: The inner side of the mixing hopper (1) is fixedly provided with a fixed frame (13) near the lower side, the center of the fixed frame (13) is rotatably provided with a connecting head (12), the lower end of the connecting head (12) is fixedly connected with the auger blade (21), and the upper end of the connecting head (12) is provided with a square column.

4. The system for preparing new materials with multi-stage dispersion and constant temperature controlled viscosity structure according to claim 3, characterized in that: The first dispersion mechanism (11) comprises a first support frame (113) fixed on the upper end of the mixing hopper (1) and a first transmission rod (114) arranged in the mixing hopper (1), the upper side of the first support frame (113) is fixedly provided with a first motor (111), the lower end of the output shaft of the first motor (111) is fixedly connected with the first transmission rod (114) through a telescopic transmission joint (112), the first transmission rod (114) is fixedly provided with a spiral blade (116) and a plurality of uniformly distributed stirring rods (115), and the lower end of the first transmission rod (114) is provided with a square sleeve opening.

5. The system for preparing new materials with multi-stage dispersion and constant temperature controlled viscosity structure according to claim 4, characterized in that: The transmission joint (112) comprises a square connecting sleeve (1121) fixedly connected with the output shaft of the first motor (111) and a square adjusting rod (1124) fixedly connected with the first transmission rod (114), the upper end of the adjusting rod (1124) is inserted into the inner side of the connecting sleeve (1121), and the side of the adjusting rod (1124) close to the upper end position is fixedly provided with an adjusting screw (1123), and the side of the connecting sleeve (1121) is provided with a guide opening (1122) for moving the adjusting screw (1123).

6. The system for preparing new materials with multi-stage dispersion and constant temperature controlled viscosity structure according to claim 1, characterized in that: The second dispersion mechanism (31) comprises a second support frame (312) capable of being adjusted in lifting mode and a second transmission rod (317) arranged in the hopper (32), the upper side of the second support frame (312) is fixedly provided with a second motor (311) fixedly connected with the second transmission rod (317), a plurality of stirring blades (318) are fixedly arranged on the second transmission rod (317), and the lower end of the second transmission rod (317) is fixedly provided with a circular stop block (319), and the inner bottom of the hopper (32) is provided with a circular discharge port.

7. The system for preparing new materials with multi-stage dispersion and constant temperature controlled viscosity structure according to claim 6, characterized in that: The second support frame (312) comprises a horizontal section for mounting the second motor (311), one end of the horizontal section is fixedly provided with a downward vertical section, the lower end of the vertical section of the second support frame (312) is fixedly provided with an adjusting plate (316), and the outer side of the vertical section of the second support frame (312) is sleeved with a guide sleeve (313) fixedly arranged on the side of the hopper (32), the side of the guide sleeve (313) is fixedly provided with a support plate (315), and the support plate (315) is rotatably provided with an adjusting screw rod (314) penetrating through the adjusting plate (316).

8. The system for preparing a new material with multi-stage dispersion and constant temperature controlled viscosity structure according to claim 1, characterized in that: The heating assembly (36) comprises a plurality of electric heating pipes (361) sleeved on the outer side of the extrusion cylinder (35) and a fixed seat (362) located on one side of the extrusion cylinder (35), the end part of the electric heating pipe (361) is connected with an electric connection seat (363), and the electric connection seat (363) is fixed on the fixed seat (362).

9. The system for preparing a new material with multi-stage dispersion and constant temperature controlled viscosity structure according to claim 8, characterized in that: The cooling assembly (37) comprises cooling pipes (371) staggered with the electric heating pipes (361) and a wind box (372) arranged on one side of the extrusion cylinder (35), the cooling pipes (371) are divided into two groups of upper and lower cooling pipes (371), the air inlet ends of the two groups of upper and lower cooling pipes (371) are connected with the wind box (372), the lower side of the wind box (372) is provided with a mounting bracket (374) fixed on the screw extruder (3), and the mounting bracket (374) is fixedly provided with a plurality of fans (373) connected with the wind box (372).

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