Efficient stirring promotes modified epoxy phenolic resin homogenizing device

Abstract

The application relates to the technical field of high polymer material processing equipment, and discloses a high-efficiency stirring and promoting modification epoxy phenolic resin homogenizing device, which comprises a stirring cylinder. In the application, a flow guide cylinder structure is arranged in the stirring cylinder, the material is forced to form directional up-down large circulation of axial pushing in the flow guide cylinder and annular gap backflow outside the flow guide cylinder, the traditional single circumferential flow stirring is upgraded to a multi-directional stirring mode, and radial and axial material exchange is significantly strengthened; the height and angle of the paddle are adjustable, the paddle can be in real time attached to the bottom wall of the stirring cylinder, the flow guide cylinder restricts the flow channel, the shear paddle shear zone is concentrated, and the flow speed is improved, the paddle angle is adjustable, the shear strength can be controlled as required, the deagglomeration capacity of nano or micron modified fillers is greatly enhanced, the height of the paddle is adjustable, the material can pass through the high shear core area repeatedly, homogenization can be completed in a shorter time, the homogenization period is significantly shortened, and energy consumption is reduced; long-time high-temperature stirring is avoided, and local aging and small molecule volatilization of the resin are reduced.

Description

Technical Field

[0001] This invention relates to the field of polymer material processing equipment technology, specifically to a high-efficiency stirring device for promoting the homogenization of modified epoxy phenolic resin. Background Technology

[0002] Modified epoxy-phenolic resin combines the excellent adhesion and corrosion resistance of epoxy resin with the outstanding heat resistance and flame retardancy of phenolic resin. After being modified with multiple components such as inorganic fillers, curing agents, and toughening agents, it is widely used in high-end anti-corrosion coatings, electronic packaging, insulating materials, and composite matrix materials. This system exhibits high-viscosity non-Newtonian fluid characteristics, with solid-liquid multiphase coexistence and significant differences in density and viscosity among its components. The quality of homogenization and mixing directly determines the crosslinking density, mechanical properties, heat resistance stability, and batch consistency of the cured resin, making it a core aspect of the production process.

[0003] Current methods for homogenizing modified epoxy phenolic resins mostly employ traditional paddle, anchor, or frame-type stirred reactors, relying on the main shaft to drive the stirring paddle in a circular motion to achieve mixing. These devices have significant technical drawbacks: First, the stirring flow field is singular, only forming circumferential circulation, with insufficient radial and axial material exchange. High-viscosity resins are prone to stirring dead zones, and material stagnation zones easily form at the bottom, walls, and behind the paddle blades, leading to uneven filler dispersion, localized agglomeration, and performance fluctuations after curing. Second, shearing and dispersion efficiency is low. Traditional stirring has weak deagglomeration capabilities for nano- or micron-sized modified fillers, making it difficult to break up intermolecular entanglements and solid-liquid interfacial tension in the liquid phase. Homogenization time is long, energy consumption is high, and prolonged high-temperature stirring easily leads to localized resin aging and small molecule volatilization, affecting product purity and performance. Summary of the Invention

[0004] To address the shortcomings of existing technologies, this invention provides a highly efficient stirring-promoting homogenization device for modified epoxy phenolic resin, which solves the problems of a single stirring flow field and low shearing and dispersion efficiency in existing homogenization devices.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a high-efficiency stirring device for promoting the homogenization of modified epoxy phenolic resin, comprising a stirring drum, wherein an adjusting component is provided inside the stirring drum, the adjusting component being used to improve stirring efficiency;

[0006] The adjustment assembly includes an adjustment cylinder and a stirring head. The adjustment cylinder is internally threaded with a lifting plate, and a rotating block is rotatably connected inside the lifting plate. The stirring head has an installation cavity, and a dual-head motor is fixedly connected inside the installation cavity. The output shaft of one end of the dual-head motor passes through the outer wall and is fixedly connected to the rotating block. A ratchet mechanism is provided between the rotating block and the installation cavity of the lifting plate.

[0007] Multiple guide plates are uniformly fixedly connected to one end of the stirring head near the regulating cylinder. Multiple guide grooves are uniformly opened along the circumference of the regulating cylinder, and the guide plates are slidably connected to the guide grooves. A first bevel gear is fixedly connected to the output shaft at the other end of the dual-head motor. Multiple shafts are uniformly installed along the circumference of the stirring head. A second bevel gear is fixedly connected to one end of the shaft near the dual-head motor, and a blade is fixedly connected to the other end of the shaft. The teeth of the first bevel gear mesh with the teeth of several second bevel gears.

[0008] Preferably, the ratchet mechanism includes a rotating cavity formed on the lifting plate, a plurality of slots are evenly formed on the inner wall of the lifting plate along the circumference, the rotating block is rotatably connected to the rotating cavity, a plurality of ratchet teeth are evenly installed on the rotating block along the circumference, a compression spring is connected between adjacent ratchet teeth, and each ratchet tooth engages with the corresponding slot.

[0009] Preferably, a limiting plate is fixedly connected to the end of the lifting plate away from the stirring head, and multiple telescopic grooves are evenly opened on the end of the limiting plate away from the lifting plate, with a telescopic block slidably connected in each telescopic groove.

[0010] Preferably, the limiting disk has a cavity, and a rotating disk is rotatably connected to the cavity. The rotating disk has multiple arc-shaped grooves evenly formed along its circumference.

[0011] Preferably, a pull rod is fixedly connected to the end of the telescopic block near the rotating disk, the pull rod is slidably connected to the arc-shaped groove, and a friction block is fixedly connected to the end of the telescopic block away from the pull rod.

[0012] Preferably, an end cover is fixedly connected to the upper end of the mixing drum, and two independently operating drive motors are installed on the top of the mixing drum. Gears are installed on the output ends of the drive motors, and gear rings are fixedly connected to the top ends of the rotating shaft and the hollow shaft. The gears at the output ends of the two drive motors mesh with the gear rings at the top ends of the rotating shaft and the hollow shaft, respectively. A feed pipe and a vacuum pump are fixedly connected to the end cover, and the feed pipe is connected to the mixing drum.

[0013] Preferably, the vacuum pump output end is fixedly connected to a gas pipe, the gas pipe is connected to the inside of the stirring drum, the stirring drum wall is provided with an installation groove, and a heat-conducting pipe is fixedly connected in the installation groove.

[0014] Preferably, a plurality of fixing brackets are evenly installed circumferentially on the inner wall of the stirring cylinder, and a guide cylinder is fixedly connected to the end of the plurality of fixing brackets away from the end cover. A hollow shaft is rotatably connected to the end cover, and a plurality of shearing blades are evenly installed on the outer wall of the hollow shaft, and the shearing blades are located inside the guide cylinder.

[0015] Preferably, a rotating shaft is fitted inside the hollow shaft, and the rotating shaft is fixedly connected to the adjusting cylinder, and a first scraper is fixedly connected to the outer wall of the hollow shaft.

[0016] Preferably, an adjusting tube is fixedly connected to the end of the stirring head away from the adjusting cylinder. Two adjusting grooves are evenly opened in the circumferential direction of the adjusting tube. A sliding plate is slidably connected between the two adjusting grooves. A return spring is fixedly connected inside the adjusting tube and abuts against the sliding plate. A second scraper is fixedly connected to the outer wall of the sliding plate.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] 1. In this invention, by setting a guide tube structure inside the mixing drum, the material is forcibly guided to form a directional large-scale circulation that pushes axially inside the guide tube and circulates back through the annular gap outside the guide tube. This upgrades the traditional single circumferential flow mixing to a multi-directional mixing method, significantly enhancing radial and axial material exchange. Combined with an adjustable blade height and lower blade angle structure, it can be brought close to the bottom wall of the mixing drum in real time, continuously lifting the heavy filler in the mixing drum. This counteracts centrifugal sedimentation and stratification caused by density differences, achieving synchronous homogenization of light and heavy components, ensuring uniform dispersion of the filler throughout the entire area, preventing local agglomeration, and significantly reducing performance fluctuations after curing.

[0019] 2. In this invention, the guide tube constrains the flow channel, concentrating the shearing zone of the shearing paddle and increasing the flow velocity. Combined with the adjustable blade angle, the shearing intensity can be controlled as needed, significantly enhancing the deagglomeration ability of nano or micro modified fillers. It can efficiently break the resin molecular entanglement and solid-liquid interfacial tension. The adjustable blade height allows the material to repeatedly pass through the high-shear core zone, completing homogenization in a shorter time, significantly shortening the homogenization cycle and reducing energy consumption. At the same time, it avoids prolonged high-temperature stirring, reducing local aging of resin and volatilization of small molecules, ensuring product purity and stability. Combined with vacuum conditions, it can quickly remove air bubbles in high-viscosity systems, resulting in no pinholes or defects after curing, and significantly improving insulation and density. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall structure of a high-efficiency stirring-promoting homogenization device for modified epoxy phenolic resin according to the present invention.

[0021] Figure 2 This is a cross-sectional view of the stirring cylinder of the high-efficiency stirring-promoting homogenization device for modified epoxy phenolic resin according to the present invention.

[0022] Figure 3 This is a cross-sectional view of the hollow shaft of the high-efficiency stirring-promoting homogenization device for modified epoxy phenolic resin according to the present invention.

[0023] Figure 4 This is a cross-sectional view of the regulating cylinder of a high-efficiency stirring device for promoting the homogenization of modified epoxy phenolic resin according to the present invention.

[0024] Figure 5This is a schematic cross-sectional view of the limiting plate of a high-efficiency stirring device for promoting the homogenization of modified epoxy phenolic resin according to the present invention.

[0025] Figure 6 This is a cross-sectional view of the stirring head of a high-efficiency stirring device for promoting the homogenization of modified epoxy phenolic resin according to the present invention.

[0026] Figure 7 This is a cross-sectional view of the lifting plate of the high-efficiency stirring device for promoting the homogenization of modified epoxy phenolic resin according to the present invention.

[0027] In the diagram: 1. Mixing drum; 2. End cap; 3. Vacuum pump; 4. Gas pipe; 5. Feed pipe; 6. Hollow shaft; 7. Rotating shaft; 8. Guide tube; 9. Fixing frame; 10. Mounting groove; 11. Heat pipe; 12. First scraper; 13. Shearing paddle; 14. Adjusting cylinder; 15. Second scraper; 16. Paddle blade; 17. Guide groove; 18. Guide plate; 19. Mounting cavity; 20. Limiting plate; 21. Lifting plate; 22. Stirring 23. Mixing head; 24. Adjusting pipe; 25. Telescopic groove; 26. Cavity; 27. Rotating disc; 28. Arc groove; 29. ​​Pull rod; 30. Friction block; 31. Dual-head motor; 32. Shaft; 33. First bevel gear; 34. Second bevel gear; 35. Adjusting groove; 36. Sliding plate; 37. Return spring; 38. Rotating block; 39. Ratchet; 40. Compression spring; 41. Slot; 42. Rotating cavity; 43. Telescopic block. Detailed Implementation

[0028] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0029] refer to Figures 1-7 The device for promoting the homogenization of modified epoxy phenolic resin by stirring, as shown, includes a stirring drum 1. An adjusting component is installed inside the stirring drum 1 to improve stirring efficiency. A specific embodiment is shown below:

[0030] Example 1

[0031] An end cover 2 is fixedly connected to the upper end of the mixing drum 1. Two independently operating drive motors are installed on the top of the mixing drum 1. Gears are installed at the output ends of the drive motors. Gear rings are fixedly connected to the top ends of the rotating shaft 7 and the hollow shaft 6. The gears at the output ends of the two drive motors mesh with the gear rings at the top ends of the rotating shaft 7 and the hollow shaft 6, respectively. A feed pipe 5 and a vacuum pump 3 are fixedly connected to the end cover 2. The feed pipe 5 is connected to the mixing drum 1. An air pipe 4 is fixedly connected to the output end of the vacuum pump 3. The air pipe 4 is connected to the inside of the mixing drum 1. An installation groove 10 is opened inside the mixing drum 1. A heat conduction pipe 11 is fixedly connected to the installation groove 10. Multiple fixing brackets 9 are evenly installed along the circumference of the inner wall of the mixing drum 1. The ends of the multiple fixing brackets 9 away from the end cover 2 are... A guide tube 8 is fixedly connected to the end cap 2, and a hollow shaft 6 is rotatably connected to the end cap 2. Multiple shearing blades 13 are evenly installed on the outer wall of the hollow shaft 6, and the shearing blades 13 are located inside the guide tube 8. A rotating shaft 7 is sleeved inside the hollow shaft 6 and is fixedly connected to the regulating tube 14. A first scraper 12 is fixedly connected to the outer wall of the hollow shaft 6. An regulating tube 23 is fixedly connected to the end of the stirring head 22 away from the regulating tube 14. Two regulating grooves 34 are evenly opened in the circumferential direction of the regulating tube 23. A sliding plate 35 is slidably connected between the two regulating grooves 34. A return spring 36 is fixedly connected inside the regulating tube 23 and abuts against the sliding plate 35. A second scraper 15 is fixedly connected to the outer wall of the sliding plate 35.

[0032] The feed pipe 5 is used to add epoxy phenolic resin, nano or micron modified fillers, and additives. After the materials are added to the feed pipe 5, the feed end of the feed pipe 5 is sealed with a matching sealing plug. The gas pipe 4 at the output end of the vacuum pump 3 is used to extract the gas from the mixing drum 1, so that the inside of the mixing drum 1 is in a closed vacuum state, which suppresses the phenomenon of air entrapment during stirring and quickly removes air bubbles in the system, avoiding pinhole defects after subsequent curing. The heat conduction pipe 11 in the mounting groove 10 is filled with a heat conduction medium to achieve precise temperature control and prevent local overheating and aging of high viscosity resin during long-term stirring and volatilization of small molecules. Here, the heat pipe 11 has a single spiral structure. The guide tube 8 divides the interior of the stirring tank 1 into a shear zone inside the guide tube 8 and a reflux zone between the guide tube 8 and the stirring tank 1. The high-shear core zone is the area around the outer edge of the blade in the inner cavity of the guide tube, defined by the relative spatial position of the guide tube and the blade. Adjusting the blade height can change the vertical position of this core zone, causing the circulating material to continuously pass through this area, forcing the material to form an axial up-and-down circulating flow field, breaking the traditional single circumferential circulation, strengthening radial and axial material exchange, and eliminating stirring dead zones. The shear blade 13 is located inside the guide tube 8 and is used for high-speed shearing and deagglomeration of resin and filler. The first scraper 12, which is fixedly connected to the outer wall of the hollow shaft 6, is in contact with the inner wall of the guide tube 8, scraping off the material adhering to the inner wall of the guide tube 8 in real time, avoiding material retention and crusting. The second scraper 15 is always in contact with the bottom of the mixing drum 1 under the pushing action of the return spring 36. The second scraper 15 is U-shaped to facilitate scraping the inner wall of 1, scraping off the material stuck at the bottom of the mixing drum 1, preventing high viscosity resin and heavy filler from settling and agglomerating, and ensuring uniform dispersion throughout the entire area.

[0033] Example 2

[0034] The adjustment assembly includes an adjustment cylinder 14 and a stirring head 22. A lifting plate 21 is threadedly connected to the adjustment cylinder 14. A rotating block 37 is rotatably connected inside the lifting plate 21. An installation cavity 19 is formed inside the stirring head 22. A dual-head motor 30 is fixedly connected inside the installation cavity 19. The output shaft of one end of the dual-head motor 30 is fixedly connected to the rotating block 37. A ratchet mechanism is provided between the rotating block 37 and the installation cavity 19 of the lifting plate 21. The ratchet mechanism includes a rotating cavity 41 formed on the lifting plate 21. Multiple slots 40 are evenly formed along the circumference of the lifting plate 21. The rotating block 37 is rotatably connected to the rotating cavity 41. Multiple ratchet teeth 38 are evenly installed along the circumference of the rotating block 37. A compression spring 39 is fixedly connected to the outer wall of 38, and the ratchet 38 and the slot 40 engage with each other. A limiting plate 20 is fixedly connected to the end of the lifting plate 21 away from the stirring head 22. Multiple telescopic grooves 24 are evenly opened on the end of the limiting plate 20 away from the lifting plate 21. A telescopic block 42 is slidably connected in the telescopic groove 24. A cavity 25 is opened in the limiting plate 20. A rotating plate 26 is rotatably connected in the cavity 25. Multiple arc-shaped grooves 27 are evenly opened in the circumference of the rotating plate 26. A pull rod 28 is fixedly connected to the end of the telescopic block 42 near the rotating plate 26. The pull rod 28 is slidably connected to the arc-shaped groove 27. A friction block 29 is fixedly connected to the end of the telescopic block 42 away from the pull rod 28.

[0035] One end of the dual-head motor 30 outputs power to drive the rotating block 37 to rotate. The compression spring 39 presses the ratchet 38 into the slot 40 of the lifting plate 21. Utilizing the unidirectional transmission characteristic of the ratchet mechanism, the lifting plate 21 is driven to rise threadedly inside the adjusting cylinder 14, simultaneously driving the lower stirring head 22 and the blade 16 to complete the overall height increase. The ratchet structure rotates in reverse and locks itself, which can stably lock the lifting drive end. When the blade 16 descends to the low position and is close to the bottom wall of the stirring cylinder 1, it can strongly stir the high-density packing material deposited at the bottom, counteracting the centrifugal sedimentation effect. When the blade 16 is raised to the high position, the flow field tends to be gentle, and the liquid surface disturbance is small, which facilitates the vacuum degassing process. At the same time, it avoids the blade 16 rubbing against the bottom wall of the stirring cylinder 1 at close range, which would generate additional temperature rise. After the height adjustment is completed, a worm gear is fixedly connected to one end of the rotating disk 26, and a drive motor is installed in the cavity 25. A worm is fixedly connected to the output end of the drive motor. The rotating disk 26 is driven to rotate by the rotation of the worm. The arc groove 27 pulls the pull rod 28 to drive the telescopic block 42 to extend outward, so that the friction block 29 presses against the inner wall of the adjusting cylinder 14. The mechanical positioning and locking are completed by the friction between the friction block 29 and the inner wall of the adjusting cylinder 14, so as to prevent the height of the blade 16 from moving on its own during the mixing operation. This realizes the dynamic adjustment of the height of the blade 16 as needed, which can adapt to the process requirements of different stages of feeding, dispersion, homogenization and degassing.

[0036] Example 3

[0037] Multiple guide plates 18 are evenly fixedly connected to one end of the stirring head 22 near the regulating cylinder 14. Multiple guide grooves 17 are evenly opened in the circumferential direction of the regulating cylinder 14, and the guide plates 18 are slidably connected to the guide grooves 17. The output shaft of the other end of the dual-head motor 30 is fixedly connected to a first bevel gear 32. Multiple shafts 31 are evenly installed in the circumferential direction of the stirring head 22. A second bevel gear 33 is fixedly connected to one end of the shaft 31 near the dual-head motor 30, and a blade 16 is fixedly connected to the other end of the shaft 31. The teeth of the first bevel gear 32 mesh with the teeth of the second bevel gear 33.

[0038] During the lifting and lowering operation of the stirring head 22, the guide plate 18 slides vertically along the guide groove 17 of the adjusting cylinder 14, restricting the stirring head 22 to only lift vertically, preventing radial offset and jamming, and ensuring smooth operation of the lifting structure. The other end of the dual-head motor 30 outputs torque to drive the first bevel gear 32 to rotate, which in turn meshes and drives multiple sets of second bevel gears 33 to rotate, driving the shaft 31 to rotate synchronously. Here, the outer wall of the shaft 31 is fitted with a ball bearing to limit the shaft 31 and prevent offset during rotation, thereby realizing the adjustment of the tilt angle of the blade 16. Increasing the blade 16 tilt angle enhances the axial fluid pushing force, accelerating the axial circulation of the overall material, making it suitable for macroscopic large-scale material mixing. Decreasing the blade 16 tilt angle significantly enhances the shearing force of the blade 16, which can efficiently tear apart nano- and micro-filler agglomerates, break the entanglement of resin liquid phase molecules, reduce solid-liquid interfacial tension, greatly improve deagglomeration efficiency, shorten the overall homogenization time, and reduce equipment operating energy consumption. It solves the problem of weak traditional stirring and dispersion capabilities from a shearing perspective. Combined with the blade 16 height adjustment and the circulating flow field of the guide tube 8, it greatly improves the homogenization efficiency of modified epoxy phenolic resin.

[0039] The working principle of this invention is as follows: The material is fed into the mixing drum 1 through the feed pipe 5. A drive motor is installed at the top of the mixing drum 1, and a gear is installed at the output end of the drive motor. A gear ring is fixedly connected to the top of the hollow shaft 6. The gear at the output end of the drive motor meshes with the gear ring at the top of the hollow shaft 6. The hollow shaft 6 drives the shearing blade 13 inside the guide tube 8 to rotate. Relying on the constraint of the guide tube 8, an axial closed-loop circulating flow field is formed with downward flow inside the tube and upward flow in the annular gap outside the tube. One end of the dual-head motor 30 outputs power to drive the rotating block 37 to rotate. The compression spring 39 presses the ratchet 38 into the slot 40 of the lifting plate 21, driving the lifting plate 21 to rise and fall threadedly inside the adjusting cylinder 14. Simultaneously, it drives the lower stirring head 22 and the blade 16 to complete the overall height rise and fall. When the stirring head 22 is raised and lowered, the guide plate 18 slides vertically along the guide groove 17 of the adjusting cylinder 14 for a limited position. The other end of the dual-head motor 30 outputs power. The torque drives the first bevel gear 32 to rotate, which in turn meshes with and drives multiple sets of second bevel gears 33 to rotate, causing the shaft 31 to rotate synchronously, thereby adjusting the tilt angle of the blade 16. After the height adjustment is completed, the rotating disk 26 is rotated, and the arc groove 27 pulls the pull rod 28 to extend the telescopic block 42 outward, so that the friction block 29 presses against the inner wall of the adjusting cylinder 14 to prevent the height of the blade 16 from moving on its own during the stirring operation. The vacuum pump 3 performs a vacuum operation in the cylinder through the air pipe 4, and the heat conduction pipe 11 introduces hot and cold media to achieve constant temperature control in the cylinder. The first scraper 12, which rotates synchronously with the hollow shaft 6, scrapes off the material adhering to the inner wall of the guide cylinder 8. The return spring 36 inside the bottom adjusting pipe 23 continuously pushes the sliding plate 35, so that the second scraper 15 elastically and tightly adheres to the bottom wall of the stirring cylinder 1, continuously cleaning the deposited filler and resin in the bottom retention area, effectively avoiding local agglomeration of filler and reducing the performance fluctuation of the resin after curing.

[0040] Finally, it should be noted that the above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A high-efficiency stirring device for promoting the homogenization of modified epoxy phenolic resin, comprising a stirring drum (1), characterized in that: An adjustment component is provided inside the stirring drum (1), which is used to improve the stirring efficiency; The adjustment assembly includes an adjustment cylinder (14) and a stirring head (22). The adjustment cylinder (14) is threadedly connected to a lifting plate (21). A rotating block (37) is rotatably connected inside the lifting plate (21). An installation cavity (19) is opened inside the stirring head (22). A double-head motor (30) is fixedly connected inside the installation cavity (19). The output shaft of one end of the double-head motor (30) passes through the outer wall of 22 and is fixedly connected to the rotating block (37). A ratchet mechanism is provided between the rotating block (37) and the installation cavity (19) of the lifting plate (21). The stirring head (22) is uniformly fixedly connected to a plurality of guide plates (18) at one end near the regulating cylinder (14). The regulating cylinder (14) is uniformly provided with a plurality of guide grooves (17) along the circumference, and the guide plates (18) are slidably connected to the guide grooves (17). The output shaft of the other end of the dual-head motor (30) is fixedly connected to a first bevel gear (32). A plurality of shafts (31) are uniformly installed on the circumference of the stirring head (22). A second bevel gear (33) is fixedly connected to one end of the shaft (31) near the dual-head motor (30). A blade (16) is fixedly connected to the other end of the shaft (31). The teeth of the first bevel gear (32) mesh with the teeth of a plurality of second bevel gears (33).

2. The high-efficiency stirring-promoting homogenization device for modified epoxy phenolic resin according to claim 1, characterized in that: The pawl mechanism includes a rotating cavity (41) opened on the lifting plate (21). Multiple slots (40) are evenly opened on the inner wall of the lifting plate (21) along the circumference. The rotating block (37) is rotatably connected to the rotating cavity (41). Multiple ratchet teeth (38) are evenly installed on the rotating block (37) along the circumference. A compression spring (39) is connected between adjacent ratchet teeth (38), and each ratchet tooth (38) is engaged and matched with the corresponding slot (40).

3. The high-efficiency stirring-promoting homogenization device for modified epoxy phenolic resin according to claim 1, characterized in that: The lifting plate (21) is fixedly connected to a limiting plate (20) at the end away from the stirring head (22). The limiting plate (20) is provided with a plurality of telescopic grooves (24) at the end away from the lifting plate (21). Each telescopic groove (24) is slidably connected to a telescopic block (42).

4. The high-efficiency stirring-promoting homogenization device for modified epoxy phenolic resin according to claim 3, characterized in that: The limiting disk (20) has a cavity (25) inside, and a rotating disk (26) is rotatably connected inside the cavity (25). Multiple arc-shaped grooves (27) are evenly opened on the rotating disk (26) along the circumferential direction.

5. The high-efficiency stirring-promoting homogenization device for modified epoxy phenolic resin according to claim 4, characterized in that: The telescopic block (42) is fixedly connected to a pull rod (28) at one end near the rotating disk (26), the pull rod (28) is slidably connected to the arc groove (27), and the telescopic block (42) is fixedly connected to a friction block (29) at the other end away from the pull rod (28).

6. The high-efficiency stirring-promoting homogenization device for modified epoxy phenolic resin according to claim 1, characterized in that: The upper end of the stirring drum (1) is fixedly connected to an end cap (2). Two independently operating drive motors are installed on the top of the stirring drum (1). Gears are installed on the output end of the drive motors. Gear rings are fixedly connected to the top ends of the rotating shaft (7) and the hollow shaft (6). The gears at the output ends of the two drive motors mesh with the gear rings at the top ends of the rotating shaft (7) and the hollow shaft (6), respectively. A feed pipe (5) and a vacuum pump (3) are fixedly connected to the end cap (2). The feed pipe (5) is connected to the stirring drum (1).

7. The high-efficiency stirring-promoting homogenization device for modified epoxy phenolic resin according to claim 6, characterized in that: The vacuum pump (3) is fixedly connected to a gas pipe (4) at its output end. The gas pipe (4) is connected to the inside of the stirring drum (1). An installation groove (10) is provided inside the wall of the stirring drum (1). A heat-conducting pipe (11) is fixedly connected inside the installation groove (10).

8. The high-efficiency stirring-promoting homogenization device for modified epoxy phenolic resin according to claim 7, characterized in that: The inner wall of the stirring cylinder (1) is uniformly equipped with multiple fixing frames (9) along the circumference. The ends of the multiple fixing frames (9) away from the end cap (2) are jointly fixedly connected to the guide cylinder (8). A hollow shaft (6) is rotatably connected to the end cap (2). Multiple shearing blades (13) are uniformly installed on the outer wall of the hollow shaft (6), and the shearing blades (13) are located inside the guide cylinder (8).

9. The high-efficiency stirring-promoting homogenization device for modified epoxy phenolic resin according to claim 8, characterized in that: The hollow shaft (6) is fitted with a rotating shaft (7), and the rotating shaft (7) is fixedly connected to the adjusting cylinder (14). The outer wall of the hollow shaft (6) is fixedly connected to a first scraper (12).

10. The high-efficiency stirring-promoting homogenization device for modified epoxy phenolic resin according to claim 1, characterized in that: The stirring head (22) is fixedly connected to an adjusting tube (23) at the end away from the adjusting cylinder (14). The adjusting tube (23) has two adjusting grooves (34) evenly opened in the circumferential direction. A sliding plate (35) is slidably connected between the two adjusting grooves (34). A return spring (36) is fixedly connected inside the adjusting tube (23), and the return spring (36) abuts against the sliding plate (35). A second scraper (15) is fixedly connected to the outer wall of the sliding plate (35).

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