Anti-cracking curing agent precision proportioning and temperature control mixing equipment

Abstract

The present application relates to the technical field of polymer material processing equipment, and particularly relates to a precise proportioning and temperature control mixing device for anti-cracking curing agent. The device comprises a mixing tank, a storage tank is arranged on the top of the mixing tank, the storage tank is used for storing curing agent ingredients, a feed pump one is installed on the mixing tank, the feed pump one is used for conveying the curing agent ingredients in the storage tank into the mixing tank, a discharge pipe is installed on the mixing tank, and the discharge pipe is used for discharging the ingredients in the mixing tank, the present application is provided with a material distribution frame, a feed frame, a material distribution hopper, an adjusting motor and a material distribution plate, the material distribution frame is separated into multiple independent chambers by a partition plate, intermittent docking of the feed opening one and the feed opening two is achieved, time sequence and quantitative feeding of multiple curing agent ingredients are realized, meanwhile, the sweeping scraper arranged on the material distribution plate can scrape and arrange the ingredients, uniform discharging of the hopper-shaped discharge hole one is achieved, and the mixing precision of the ingredients is significantly improved.

Description

Technical Field

[0001] This invention relates to the field of polymer material processing equipment technology, and in particular to a device for precise proportioning and temperature-controlled mixing of anti-cracking curing agents. Background Technology

[0002] Crack-resistant curing agents are a class of functional additives developed in recent years to improve the brittleness of thermosetting materials. By introducing toughening segments or nano-modified particles into the curing agent components, the cured product can maintain a high crosslinking density while possessing excellent impact resistance and crack resistance. However, the effectiveness of this type of curing agent is highly dependent on the precision of its ratio with the matrix resin—when the curing agent addition deviates by more than ±2%, the toughening effect drops sharply, and even more serious cracking problems may occur due to insufficient crosslinking density or local enrichment.

[0003] There is room for optimization in the mixing methods of existing equipment. Tank agitators rely on large-scale macroscopic convection to achieve mixing, which can easily form dead zones near the tank wall and bottom, resulting in uneven local proportions. While conventional static mixers have high mixing efficiency, they lack independent control over the mixing temperature. For resin-curing agent systems with large viscosity differences, the diffusion at the mixing interface is insufficient, which may still produce a certain scale of proportion concentration gradient. Summary of the Invention

[0004] To address the problems existing in the background technology, a precise mixing and temperature-controlled equipment for anti-cracking curing agents is proposed.

[0005] This invention proposes a precise proportioning and temperature-controlled mixing device for anti-cracking curing agents, comprising a mixing tank, a storage tank at the top of the mixing tank for storing curing agent ingredients, a feed pump installed on the mixing tank for conveying the curing agent ingredients from the storage tank to the mixing tank, and a discharge pipe installed on the mixing tank for discharging the ingredients from the mixing tank. The mixing tank is composed of a dispensing cylinder, a stirring cylinder, a conversion cylinder, and a discharge cylinder from top to bottom. The dispensing cylinder is equipped with a dispensing component for sequentially and quantitatively dispensing various curing agent ingredients into the mixing tank. Inside the mixing tank, a stirring mechanism is installed on the stirring drum. The stirring mechanism is used to shear, disperse, and homogenize the ingredients entering the stirring drum. A rotating component is rotatably installed on the conversion drum. Two ingredient chambers are opened on the discharge drum. A heating frame is installed on one side of the mixing tank. A heating mechanism is installed on the heating frame. The heating mechanism is used to heat and control the temperature of the ingredients entering the heating frame. The heating frame is connected to one of the ingredient chambers on the discharge drum. A second conveying pump is installed below the mixing tank. The second conveying pump is used to re-transport the heated ingredients back into the mixing tank.

[0006] Preferably, the material distribution assembly comprises a material distribution frame, a conveying frame, a material distribution hopper, an adjusting motor, and a material distribution plate. The material distribution frame is mounted on a material distribution cylinder, the conveying frame is rotatably mounted on the material distribution frame, the material distribution hopper is mounted on the conveying frame, the adjusting motor is mounted on the material distribution cylinder and is used to drive the conveying frame to rotate, the material distribution plate is mounted on the material distribution cylinder, and a partition is provided on the material distribution frame. The partition divides the interior of the material distribution frame into multiple independent material dispensing chambers along the circumference. A first material dispensing port is provided on the conveying frame, and a second material dispensing port is provided on one side of each material dispensing chamber. During the rotation of the conveying frame, the first material dispensing port is intermittently and selectively aligned with the second material dispensing port of each material dispensing chamber.

[0007] Preferably, the upper surface of the material distribution plate is provided with a leveling scraper, which is fixedly connected to the material distribution hopper via a connecting rod. The leveling scraper rotates synchronously with the material distribution hopper to level and spread the ingredients falling onto the material distribution plate.

[0008] Preferably, the material distribution plate is provided with a plurality of feeding holes that extend through the thickness direction. The feeding holes are cone-shaped structures with a larger top and a smaller bottom, and the inner diameter of the top opening is larger than the inner diameter of the bottom opening.

[0009] Preferably, the stirring mechanism consists of a stirring assembly and a dividing plate. The stirring assembly is disposed on the stirring drum and is used to apply shearing and stirring action to the ingredients. The dividing plate is fixedly installed inside the stirring drum and located above the stirring assembly, and is used to guide the ingredients falling into the stirring drum in a circumferential direction. The stirring assembly consists of a stirring motor, a transmission plate, and a stirring rod. The stirring motor is mounted on the stirring drum, the transmission plate is rotatably mounted on the stirring drum, and the outer edge of the transmission plate is connected to the output end of the stirring motor through gear meshing. The stirring rod is vertically disposed inside the stirring drum, with its upper end fixedly connected to the transmission plate and its lower end extending to the bottom area of ​​the stirring drum.

[0010] Preferably, the dividing plate is shaped like a bucket, and the dividing plate has a plurality of feeding holes evenly distributed along the circumference. Each feeding hole is used to divert the ingredients into different mixing zones where the stirring rod is located.

[0011] Preferably, the rotating component is composed of a rotating disk, which is rotatably installed inside the conversion cylinder and coaxially arranged with the conversion cylinder. The rotating disk has an arc-shaped material discharge channel that runs through the axis. A rotating motor is fixedly installed on the discharge cylinder, and the output end of the rotating motor is connected to the rotating disk for driving the rotating disk to rotate at a certain angle inside the conversion cylinder, so as to switch the communication state between the material discharge channel and the two batching chambers.

[0012] Preferably, the heating mechanism consists of a heating plate, a synchronous belt assembly, and a conveyor bar. The heating plate is disposed on the heating frame and is used to provide a controllable heat source to the interior of the heating frame. The synchronous belt assembly is disposed on the heating frame and has a synchronous belt. The conveyor bar is disposed inside the heating frame and contacts the inner wall of the heating frame. The conveyor bar is connected to the synchronous belt and is driven to move by the synchronous belt assembly. The material entering the heating frame is quantitatively divided into several equal portions by the interval between adjacent conveyor bars.

[0013] Preferably, the heating frame is provided with a stirring component, which is located between two adjacent conveyor bars and is used to intermittently agitate and stir the quantitatively separated ingredients. The stirring component consists of a moving rod, a fixed cylinder, a return spring, a hemispherical block, and a spherical protrusion. The moving rod is slidably mounted on the synchronous belt, the fixed cylinder is mounted on the synchronous belt, one end of the moving rod extends to the fixed cylinder and is slidably connected to the fixed cylinder, the return spring is mounted inside the fixed cylinder, one end of the return spring is connected to the moving rod, the hemispherical block is mounted on one end of the moving rod, and the spherical protrusion is disposed on one inner wall of the heating frame.

[0014] Compared with the prior art, the present invention has the following beneficial technical effects: This invention, by setting up a material distribution component—including a material distribution frame, a conveying frame, a material distribution hopper, an adjusting motor, and a material distribution plate—and using partitions to divide the material distribution frame into multiple independent chambers, combined with the intermittent docking of conveying port one and conveying port two, achieves the sequential and quantitative dispensing of various curing agents. At the same time, the leveling scraper on the material distribution plate can level and tidy up the materials, and with the uniform dispensing of the hopper-shaped discharge hole one, it significantly improves the metering accuracy of the materials and effectively overcomes the problem in the prior art that "the toughening effect drops sharply when the curing agent addition deviation exceeds ±2%", ensuring the optimal ratio of crack-resistant curing agent to matrix resin.

[0015] This invention designs the mixing tank as a segmented structure consisting of a distribution cylinder, a stirring cylinder, a conversion cylinder, and a discharge cylinder. A stirring assembly, comprising a stirring motor, a transmission disc, and a stirring rod, is installed inside the stirring cylinder. Combined with a bucket-shaped dividing disc and its discharge hole, the ingredients are diverted and guided before entering the stirring zone, preventing material accumulation. This structural design changes the traditional tank-type mixing method that relies on large-scale macroscopic convection, effectively reducing the flow dead zones in the tank walls and bottom, significantly improving the microscopic uniformity of the mixture, and solving the problem of uneven local proportions in the prior art.

[0016] This invention features a heating frame on one side of the mixing tank, equipped with a heating mechanism consisting of a heating plate, a synchronous belt assembly, and a conveyor bar. This ensures that the ingredients are quantitatively separated and uniformly heated after entering the heating frame. Simultaneously, a second conveyor pump re-transports the heated ingredients back into the mixing tank, forming a closed-loop temperature control circuit of heating-circulation-remixing. This design achieves independent control of the mixing temperature, and is particularly suitable for resin-curing agent systems with significant viscosity differences. It effectively improves the diffusion sufficiency at the mixing interface and eliminates microscale concentration gradients.

[0017] This invention further incorporates a stirring assembly on the heating frame, consisting of a moving rod, a fixed cylinder, a return spring, a hemispherical block, and a heating plate. While the synchronous belt assembly moves the conveyor bars, the hemispherical block intermittently contacts the heating plate and presses against the moving rod, causing the moving rod to reciprocate under the action of the return spring, thus assisting in the stirring of the ingredients between adjacent conveyor bars. This structure achieves dynamic disturbance during the heating process without adding an additional drive source, preventing localized overheating or deposition of ingredients within the heating frame, and further improving the uniformity of temperature-controlled mixing and heat transfer efficiency. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the main structure of the present invention; Figure 2 This is a cross-sectional structural diagram of the present invention; Figure 3 This is a three-dimensional cross-sectional view of the mixing tank in this invention; Figure 4 This is a three-dimensional cross-sectional view of the material distribution cylinder in this invention; Figure 5 This is a three-dimensional cross-sectional view of the stirring cylinder in this invention; Figure 6 This is a three-dimensional cross-sectional view of the conversion cylinder in this invention; Figure 7 This is a three-dimensional structural diagram of the discharge cylinder in this invention; Figure 8 This is a three-dimensional cross-sectional view of the heating frame in this invention; Figure 9 This is a three-dimensional structural diagram of the synchronous belt component in this invention; Figure 10 This is a schematic diagram of another three-dimensional cross-sectional structure of the heating frame in this invention.

[0019] Attached reference numerals: 1. Distribution cylinder; 2. Mixing cylinder; 3. Transfer cylinder; 4. Discharge cylinder; 5. Storage tank; 6. Feed pump one; 7. Discharge pipe; 8. Distribution frame; 9. Feeding frame; 10. Adjusting motor; 11. Distribution hopper; 12. Distribution plate; 13. Feeding port two; 14. Feeding port one; 15. Conducting disc; 16. Mixing motor; 17. Mixing rod; 18. Dividing disc; 19. Rotating component; 20. Rotating motor; 21. Discharge chute; 22. Conveying frame; 23. Heating frame; 24. Synchronous belt assembly; 25. Synchronous belt; 26. Conveying bar; 27. Conveying pump II; 28. Moving rod; 29. ​​Fixed cylinder; 30. Return spring; 31. Hemispherical block; 32. Spherical protrusion; 33. Conveying pipe; 34. Discharge hole I; 35. Sweeping scraper; 36. Discharge hole II; 37. Heating plate. Detailed Implementation

[0020] like Figures 1-10 As shown, the present invention proposes a precise proportioning and temperature-controlled mixing device for anti-cracking curing agent, comprising: a mixing tank, the mixing tank adopting a vertical segmented structure, which is composed of a material distribution cylinder 1, a stirring cylinder 2, a conversion cylinder 3 and a discharge cylinder 4 connected coaxially and sealed from top to bottom; a number of storage tanks 5 are provided at the top of the mixing tank for storing different types of curing agent ingredients respectively; each storage tank 5 is connected to the inlet end of a material pump 6 through an independent material conveying pipeline; the outlet end of the material pump 6 is connected to the inlet at the top of the material distribution cylinder 1 for quantitatively conveying different ingredients into the mixing tank in a preset order according to the process sequence; and a discharge pipe 7 is provided at the bottom of the mixing tank for discharging the finished curing agent that has completed mixing and temperature control treatment. The dispensing cylinder 1 is equipped with a dispensing assembly, which is used to sequentially and quantitatively dispense various curing agent ingredients into the mixing tank. The dispensing assembly consists of a dispensing frame 8, a conveying frame 9, a dispensing hopper 11, an adjusting motor 10, and a dispensing plate 12. The dispensing frame 8 is mounted on the dispensing cylinder 1, and its interior is divided into multiple independent dispensing chambers along the circumference by partitions. Each chamber corresponds to one type of curing agent ingredient. The conveying frame 9 is rotatably mounted on the dispensing frame 8, and the dispensing hopper 11 is mounted on the conveying frame 9. The adjusting motor 10... The motor 10 is installed on the distributing cylinder 1. The adjusting motor 10 is used to drive the conveying frame 9 to rotate. The distributing plate 12 is installed on the distributing cylinder 1. The conveying frame 9 has a first conveying port 14. The distributing chamber has a second conveying port 13 on one side. The first conveying port 14 is intermittently and selectively aligned with the second conveying port 13 of each distributing chamber during the rotation of the conveying frame 9. This enables multiple ingredients to fall into the distributing hopper 11 in a quantitative manner according to a preset time sequence and rotation angle, thus completing the precise feeding of ingredients in a time sequence and quantity.

[0021] The upper surface of the distribution plate 12 is provided with a leveling scraper 35, which is fixedly connected to the distribution hopper 11 via a connecting rod. The leveling scraper 35 rotates synchronously with the distribution hopper 11. A small gap (preferably 0.5-2mm) is maintained between the lower edge of the leveling scraper 35 and the upper surface of the distribution plate 12 to evenly scrape and spread the ingredients falling on the distribution plate 12, avoiding local accumulation. The distribution plate 12 is evenly provided with a plurality of discharge holes 34 that penetrate along the thickness direction. The discharge holes 34 are designed as a cone-shaped structure with a larger upper opening and a smaller lower opening. The inner diameter of the top opening is larger than the inner diameter of the bottom opening. This structure helps to guide the ingredients to fall evenly in a dispersed manner, avoiding concentrated blockage, and improving the uniformity of material discharge.

[0022] The mixing drum 2 is equipped with a stirring mechanism, which is used to shear, disperse, and homogenize the ingredients entering the mixing drum 2. The stirring mechanism consists of a stirring assembly and a dividing plate 18. The stirring assembly is mounted on the mixing drum 2 and is used to apply shearing and stirring action to the ingredients. The dividing plate 18 is fixedly installed inside the mixing drum 2. The dividing plate 18 is cone-shaped (i.e., a bucket-shaped structure with a low center and high edges or vice versa), and has multiple circumferentially evenly distributed discharge holes 36. The distribution position of each discharge hole 36 corresponds to the stirring area of ​​the stirring rod 17 below, so as to divert and guide the ingredients after falling through the distribution plate 12 to different stirring areas in the mixing drum 2, avoiding the material from falling into a single position, thereby improving the dispersion efficiency in the initial stage of stirring. The stirring assembly consists of a stirring motor 16, a transmission plate 15, and a stirring plate 18. The mixing rod 17 is composed of a stirring motor 16 fixedly installed on the outer wall of the mixing drum 2, with a drive gear at its output end. The transmission disk 15 is rotatably installed at the top port of the mixing drum 2, and a driven gear ring is provided on the outer edge of the transmission disk 15. The driven gear ring meshes with the drive gear at the output end of the stirring motor 16 for transmission. The stirring rod 17 is vertically arranged inside the mixing drum 2, with its upper end fixedly connected to the center of the transmission disk 15 and its lower end extending to the bottom area of ​​the mixing drum 2. The stirring rod 17 can be equipped with shear blades or a dispersion disk (optional according to process requirements) to perform high shear dispersion and homogenization of the ingredients. After the stirring motor 16 is started, it drives the transmission disk 15 to rotate through gear meshing, thereby driving the stirring rod 17 to rotate at high speed, performing strong shearing, dispersion and mixing on the various ingredients falling into the mixing drum 2, ensuring that each component is uniformly distributed at the microscale.

[0023] A rotating component is rotatably mounted on the conversion cylinder 3. Two batching chambers are provided on the discharge cylinder 4. The rotating component 19 is preferably a rotating disk structure, coaxially arranged with the conversion cylinder 3, and the outer wall of the rotating disk maintains a sealed sliding fit with the inner wall of the conversion cylinder 3. An arc-shaped discharge groove 21 extending axially is provided on the rotating disk. The upper end of the discharge cylinder 4 is fixedly connected to the lower end of the conversion cylinder 3. The interior of the discharge cylinder 4 is divided into two independent batching chambers by a vertical partition. One batching chamber is connected to the inlet of the heating frame 23 via the conveying frame 22, and the other batching chamber is connected to the discharge pipe 7.

[0024] A rotary motor 20 is fixedly installed on the outer wall of the discharge cylinder 4. The output end of the rotary motor 20 is fixedly connected to the center of the rotating disk through a transmission shaft, which drives the rotating disk to rotate at a fixed angle inside the conversion cylinder 3. When the rotary motor 20 drives the rotating disk to the first working position, the discharge chute 21 is aligned with the upper port of one of the batching chambers. The batching material after mixing enters the batching chamber through the discharge chute 21 and is then transported to the heating frame 23 for heating and temperature control. When the rotary motor 20 drives the rotating disk to the second working position, the discharge chute 21 is aligned with the upper port of another batching chamber. The finished batching material after mixing is discharged through the batching chamber and the discharge pipe 7. Through the precise angle control of the rotary motor 20, the two working states can be switched quickly and stably. A heating frame 23 is provided on one side of the mixing tank. A heating mechanism is provided on the heating frame 23. The heating mechanism is used to heat and control the temperature of the ingredients entering the heating frame 23. The heating frame 23 is connected to one of the ingredient chambers on the discharge cylinder 4. A second feed pump 27 is provided below the mixing tank. The discharge port of the heating frame 23 is connected to the inlet of the second feed pump 27 through a feed pipeline. The outlet of the second feed pump 27 is connected to the upper return port of the mixing drum 2 through a feed pipe 33. The second feed pump 27 re-feeds the heated ingredients back into the mixing drum 2, where they are mixed again with the newly added unheated ingredients, thus forming a closed-loop temperature control circuit of "mixing → heating → re-mixing". This ensures that the entire mixing system achieves a microscopically uniform state under precise temperature control. The heating mechanism consists of a heating plate 37, a synchronous belt assembly 24, and a feed bar 26. The heating plate 37 is mounted on the heating frame 23 and provides a controllable heat source to the interior of the heating frame 23. The synchronous belt assembly 24 is mounted on the heating frame 23 and has a synchronous belt 25. The feed bar 26 is located inside the heating frame 23 and contacts the inner wall of the heating frame 23. The feed bar 26 is connected to the synchronous belt 25 and is driven to move by the synchronous belt assembly 24. The feed bar 26 is quantitatively divided into several equal portions by the intervals between adjacent feed bars 26.

[0025] A stirring assembly is provided on the heating frame 23. The stirring assembly is located between two adjacent conveyor bars 26 and is used to intermittently agitate and stir the quantitatively separated ingredients to prevent the ingredients from settling or overheating locally during the heating process. The stirring assembly consists of a moving rod 28, a fixed cylinder 29, a return spring 30, a hemispherical block 31, and a spherical protrusion 32. The fixed cylinder 29 is fixedly installed on the synchronous belt 25. One end of the moving rod 28 is slidably inserted into the fixed cylinder 29, and the other end extends out of the fixed cylinder 29 and is fixedly connected to the hemispherical block 31. The return spring 30 is located in the fixed cylinder. Inside the fixed cylinder 29, one end of the fixed cylinder 29 abuts against the inner wall of the fixed cylinder 29, and the other end abuts against the inner end of the moving rod 28, always applying an outward elastic thrust to the moving rod 28. The spherical protrusion 32 is set on one side of the inner wall of the heating frame 23. The spherical protrusion 32 can apply a thrust to the moving rod 28 during its movement, causing the moving rod 28 to move. During the continuous movement of the synchronous belt 25, the moving rod 28 generates a reciprocating telescopic motion. Its outer end intermittently moves and disturbs the material between adjacent conveyor bars 26, realizing the functions of auxiliary mixing and anti-deposition.

[0026] In this embodiment, before operation, various curing agent ingredients are stored in their respective storage tanks 5. The feed pump 6 is started to transport the ingredients to the corresponding chambers separated by partitions on the distribution frame 8 according to the process requirements. The regulating motor 10 is started to drive the feed frame 9 to rotate, so that the feed inlet 14 is intermittently connected to the feed inlets 13 of each chamber. The ingredients fall from the distribution hopper 11 to the distribution plate 12. The leveling scraper 35 rotates synchronously with the distribution hopper 11 to level the ingredients, so that the ingredients are evenly distributed on the surface of the distribution plate 12. Then, the ingredients fall evenly from the bucket-shaped discharge hole 34 to the dividing plate 18 in the mixing drum 2. The ingredients are then diverted into the mixing area through the discharge hole 36. The mixing motor 16 is started, and the mixing rod 17 is rotated through the conduction plate 15 to fully mix the ingredients. After the initial mixing is completed, the rotating motor 20 is started to drive the rotating plate to rotate, so that the discharge channel 21 is aligned with the ingredient chamber connected to the heating frame 23, and the ingredients enter the heating frame 23. The heating plate 37 is activated to heat the material, and the synchronous belt assembly 24 is activated to drive the conveyor bar 26 to move, which quantitatively divides the material and heats it evenly. When the synchronous belt 25 moves, the hemispherical block 31 at the end of the moving rod 28 intermittently contacts the spherical protrusion 32. After being squeezed, it slides along the fixed cylinder 29 and compresses the return spring 30. After being released, the spring returns to its original position and pushes the moving rod 28 to reciprocate, intermittently stirring the material between adjacent conveyor bars 26 to avoid sedimentation and local overheating.

[0027] After heating, the batching is pumped back into the mixing drum 2 by the second pump 27, where it is mixed again with the newly added batching to achieve temperature-controlled cyclic mixing. After the batching has undergone multiple cycles and reached the predetermined mixing time and uniformity requirements, the rotating motor 20 is restarted to switch the discharge chute 21 to the batching chamber connected to the discharge pipe 7. The mixed curing agent batching is then discharged through the discharge pipe 7, completing the entire operation process. During operation, the operator can flexibly adjust the conveying rate of each pump, the speed of motor 10, the speed of stirring motor 16, the temperature of heating plate 37, and the running speed of synchronous belt assembly 24 according to different formulation process requirements to meet the production needs of various anti-cracking curing agents.

[0028] The embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited thereto. Various changes can be made within the scope of knowledge possessed by those skilled in the art without departing from the spirit of the present invention.

Claims

1. A precise mixing and temperature-controlled mixing device for an anti-cracking curing agent, comprising: The mixing tank is characterized by: The top of the mixing tank is provided with a storage tank (5), which is used to store curing agent ingredients. A feed pump (6) is installed on the mixing tank, which is used to transport the curing agent ingredients in the storage tank (5) to the mixing tank. A discharge pipe (7) is installed on the mixing tank to discharge the ingredients in the mixing tank. The mixing tank is composed of a dispensing cylinder (1), a stirring cylinder (2), a conversion cylinder (3), and a discharge cylinder (4) from top to bottom. The dispensing cylinder (1) is equipped with a dispensing component, which is used to sequentially and quantitatively add various curing agent ingredients into the mixing tank. The stirring cylinder (2) is equipped with a stirring mechanism, which is used to shear, disperse, and homogenize the ingredients entering the stirring cylinder (2). The conversion cylinder (3) is rotatably equipped with a rotating component. The discharge cylinder (4) has two dispensing chambers. A heating frame (23) is provided on one side of the mixing tank. A heating mechanism is provided on the heating frame (23). The heating mechanism is used to heat and control the temperature of the ingredients entering the heating frame (23). The heating frame (23) is connected to one of the ingredient chambers on the discharge cylinder (4). A second conveying pump (27) is provided below the mixing tank. The second conveying pump (27) is used to re-transport the heated ingredients into the mixing tank.

2. The anti-cracking curing agent precise proportioning and temperature-controlled mixing equipment according to claim 1, characterized in that, The material distribution assembly consists of a material distribution frame (8), a conveying frame (9), a material distribution hopper (11), an adjusting motor (10), and a material distribution plate (12). The material distribution frame (8) is mounted on the material distribution cylinder (1), the conveying frame (9) is rotatably mounted on the material distribution frame (8), the material distribution hopper (11) is mounted on the conveying frame (9), and the adjusting motor (10) is mounted on the material distribution cylinder (1). The adjusting motor (10) is used to drive the conveying frame (9) to rotate. The material distribution plate... (12) Installed on the material distribution cylinder (1), the material distribution frame (8) is provided with a partition, the partition divides the interior of the material distribution frame (8) into multiple independent material distribution chambers along the circumference, the material conveying frame (9) is provided with a material conveying port one (14), and a material conveying port two (13) is provided on one side of the material distribution chamber. The material conveying port one (14) is intermittently and selectively aligned with the material conveying port two (13) of each material distribution chamber during the rotation of the material conveying frame (9).

3. The anti-cracking curing agent precise proportioning and temperature-controlled mixing equipment according to claim 2, characterized in that, The upper surface of the material distribution plate (12) is provided with a leveling scraper (35), which is fixedly connected to the material distribution hopper (11) via a connecting rod. The leveling scraper (35) rotates synchronously with the material distribution hopper (11) to level and spread the ingredients falling onto the material distribution plate (12).

4. The anti-cracking curing agent precise proportioning and temperature-controlled mixing equipment according to claim 3, characterized in that, The material distribution plate (12) is provided with a plurality of material discharge holes (34) that run through the thickness direction. The material discharge holes (34) are cone-shaped structures with a larger top and a smaller bottom, and the inner diameter of the top opening is larger than the inner diameter of the bottom opening.

5. The anti-cracking curing agent precise proportioning and temperature-controlled mixing equipment according to claim 1, characterized in that, The stirring mechanism consists of a stirring assembly and a dividing plate (18). The stirring assembly is set on the stirring drum (2) and is used to apply shearing and stirring action to the ingredients. The dividing plate (18) is fixedly installed inside the stirring drum (2) and located above the stirring assembly. It is used to guide the ingredients falling into the stirring drum (2) in a circumferential direction. The stirring assembly consists of a stirring motor (16), a transmission disk (15), and a stirring rod (17). The stirring motor (16) is mounted on the stirring drum (2). The transmission disk (15) is rotatably mounted on the stirring drum (2). The outer edge of the transmission disk (15) is connected to the output end of the stirring motor (16) through gear meshing. The stirring rod (17) is vertically arranged inside the stirring drum (2). The upper end of the stirring rod (17) is fixedly connected to the transmission disk (15), and the lower end extends to the bottom area of ​​the stirring drum (2).

6. The anti-cracking curing agent precise proportioning and temperature-controlled mixing equipment according to claim 5, characterized in that, The dividing plate (18) is shaped like a bucket, and multiple feeding holes (36) are evenly distributed along the circumference on the dividing plate (18). Each feeding hole (36) is used to divert the ingredients into different mixing areas where the stirring rod (17) is located.

7. The anti-cracking curing agent precise proportioning and temperature-controlled mixing equipment according to claim 6, characterized in that, The rotating component (19) is composed of a rotating disk, which is rotatably installed inside the conversion cylinder (3) and coaxially arranged with the conversion cylinder (3). The rotating disk has an arc-shaped material discharge groove (21) that runs through the axis. A rotating motor (20) is fixedly installed on the discharge cylinder (4). The output end of the rotating motor (20) is connected to the rotating disk for transmission, and is used to drive the rotating disk to rotate at a fixed angle inside the conversion cylinder (3) to switch the communication state between the material discharge groove (21) and the two batching chambers.

8. The anti-cracking curing agent precise proportioning and temperature-controlled mixing equipment according to claim 1, characterized in that, The heating mechanism consists of a heating plate (37), a synchronous belt assembly (24), and a conveyor bar (26). The heating plate (37) is set on the heating frame (23) and is used to provide a controllable heat source to the interior of the heating frame (23). The synchronous belt assembly (24) is set on the heating frame (23) and a synchronous belt (25) is provided on the synchronous belt assembly (24). The conveyor bar (26) is set inside the heating frame (23) and is in contact with the inner wall of the heating frame (23). The conveyor bar (26) is connected to the synchronous belt (25). The conveyor bar (26) is driven to move by the synchronous belt assembly (24). The material entering the heating frame (23) is quantitatively divided into several equal parts by the interval between adjacent conveyor bars (26).

9. The anti-cracking curing agent precise proportioning and temperature-controlled mixing equipment according to claim 8, characterized in that, The heating frame (23) is provided with a stirring component, which is located between two adjacent conveying bars (26) and is used to intermittently agitate and stir the quantitatively separated ingredients; The stirring assembly consists of a moving rod (28), a fixed cylinder (29), a return spring (30), a hemispherical block (31), and a spherical protrusion (32). The moving rod (28) is slidably mounted on the synchronous belt (25), and the fixed cylinder (29) is mounted on the synchronous belt (25). One end of the moving rod (28) extends to the fixed cylinder (29) and is slidably connected to the fixed cylinder (29). The return spring (30) is installed inside the fixed cylinder (29), and one end of the return spring (30) is connected to the moving rod (28). The hemispherical block (31) is installed at one end of the moving rod (28), and the spherical protrusion (32) is disposed on the inner wall of one side of the heating frame (23).

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