Compounding equipment and compounding method for testing viscosity of solutions with different concentrations

Abstract

The invention relates to the technical field of solution compounding, in particular to compounding equipment and a compounding method for testing the viscosity of solutions with different concentrations, the compounding equipment comprises a compounding tank, a supporting shaft is arranged in the compounding tank, a probe is arranged on the supporting shaft, a stirring device is arranged in the compounding tank, and the stirring device comprises a main stirring frame and a transmission assembly. The main stirring frame is rotatably connected to the supporting shaft in a sleeving mode, a rotary driving assembly is arranged on the cover body, an auxiliary stirring frame is rotatably arranged on the main stirring frame, and the main stirring frame drives the auxiliary stirring frame to rotate through a transmission assembly when rotating. According to the device, the function of stirring a solution when a solute is added is achieved, the effect of measuring the viscosity of the solutions with different concentrations is achieved, the effect of further refining and dispersing the solution is achieved through rotation of the auxiliary stirring frame while the solution is stirred through the main stirring frame, the situation that the solute is clustered and cannot be dispersed is avoided, and the stability of the solution is improved. The problem that a solution cannot be mixed in time when solute is added at high frequency through traditional compounding equipment is solved.

Description

Technical Field

[0001] The present invention relates to the technical field of solution compounding, and specifically relates to a compounding device and a compounding method for testing the viscosities of solutions with different concentrations. Background Art

[0002] The influence of the addition of fluorine-modified acrylate (such as fluorinated acrylate) on the solution viscosity is a complex process, which depends on various factors, including the addition amount of fluorine-modified acrylate, other components of the solution, stirring conditions, etc. In order to test the viscosities of solutions with different concentrations, a certain amount of solute needs to be added step by step. For this purpose, the solution needs to be stirred and mixed after the addition. However, traditional devices cannot display the viscosity change during the stirring process, so accurate data on the influence of the addition of fluorine-modified acrylate on the solution viscosity cannot be obtained.

[0003] For this reason, Chinese Patent CN216062813U discloses a digital display stirrer that can measure viscosity. It is inserted and matched with a fixed column through a movable rod. With the cooperation of fastening bolts, it is convenient for manual adjustment to fix different heights for corresponding cosmetic viscosity stirring detection. The cooperation of the motor and the rotating rod, with the cooperation of the stirring ring, uniformly detects the cosmetics to be detected. The cooperation of the display and the detection probe can detect the viscosity of the stirred cosmetic material in real time and display the detection value.

[0004] However, the stirring intensity of existing devices cannot adapt to the situation of frequent addition of solute. After adding the solute, a long stirring time is required. Once the solute is not completely mixed, it will have a great impact on the measurement accuracy of the viscosities of solutions with different concentrations. Therefore, a compounding device that can quickly and completely mix the solute into the solution is needed. Summary of the Invention

[0005] Aiming at the above problems, a compounding device and a compounding method for testing the viscosities of solutions with different concentrations are provided. By means of a storage tank and a stirring device, the problem that traditional compounding devices cannot mix the solution in time when adding solute at a high frequency is solved.

[0006] To solve the problems of the existing technology, the present invention provides a compounding device, including a compounding tank, a cover is provided on the compounding tank, a support shaft is provided inside the compounding tank, a probe for testing the viscosity of the solution in the compounding tank is provided on the support shaft, a stirring device is provided inside the compounding tank, the stirring device includes a main stirring frame and a transmission component, the main stirring frame is rotatably sleeved on the support shaft, a rotary driving component for driving the main stirring frame to rotate is provided on the cover, a sub-stirring frame is rotatably provided on the main stirring frame, and in the working state, when the main stirring frame rotates, it drives the sub-stirring frame to rotate through the transmission component.

[0007] Preferably, a scraping mechanism is provided inside the compounding tank. The scraping mechanism includes a main scraper, a secondary scraper and a reciprocating driving component. The main scraper and the secondary scraper are arranged on the main stirring frame, and a reciprocating driving component for controlling the reciprocating movement of the secondary scraper is arranged on the main stirring frame.

[0008] Preferably, the first transmission component includes a first rotating gear, a first rotating shaft and a second rotating gear; the first rotating gear is fixedly sleeved on the support shaft, the support shaft is fixedly connected to the inner wall of the compounding tank, the first rotating shaft is rotatably arranged on the main stirring frame, the second rotating gear is sleeved on the first rotating shaft, the first rotating gear and the second rotating gear are meshed and connected, and the first rotating shaft is in transmission connection with the secondary stirring frame.

[0009] Preferably, an arc-shaped guide rod is arranged on the main scraper, the secondary scraper is slidably matched with the arc-shaped guide rod, and a pushing component is arranged on the main stirring frame. The reciprocating driving component drives the secondary scraper to slide reciprocally along the arc-shaped guide rail through the pushing component.

[0010] Preferably, a limiting block for limiting the moving range of the secondary scraper is arranged at one end of the arc-shaped guide rod away from the main scraper.

[0011] Preferably, the pushing component includes a slider and a connecting rod. The slider is slidably installed on the main stirring frame. Hinge seats are arranged on both the slider and the secondary scraper. The two ends of the connecting rod are respectively hinged to the hinge seats on the slider and the secondary scraper, and the slider is in transmission connection with the driving end of the reciprocating driving component.

[0012] Preferably, the reciprocating driving component includes a push block, a fixed shaft and a push rod. The push block is slidably installed on the main stirring frame. The fixed shaft is arranged on the secondary stirring frame, and the axis of the fixed shaft deviates from the axis around which the secondary stirring frame rotates. The two ends of the push rod are respectively connected to the push block and the slider. A chute is arranged on the push block, and the fixed shaft is slidably matched with the chute on the push block.

[0013] Preferably, the rotation driving component includes a rotation driver, a sleeve and a connecting shaft. The rotation driver is installed on the cover body. The sleeve is arranged on the main stirring frame. The connecting shaft is connected to the sleeve and is rotatably connected to the cover body. The rotation driver is used to drive the connecting shaft to rotate.

[0014] Preferably, a bracket is arranged on the cover body. A worm gear is sleeved on the connecting shaft. A worm is rotatably arranged on the bracket. The worm is meshed and connected with the worm gear. The driving end of the rotation driver is in transmission connection with the worm.

[0015] A compounding method for testing the viscosity of solutions with different concentrations includes the following steps:

[0016] S1. Inject a solvent into the reciprocating mixing tank;

[0017] S2. Inject a specified dose of solute into the compounding tank through a metering pump;

[0018] S3. Start the rotary drive assembly, and the rotary drive assembly drives the main stirring frame to rotate;

[0019] S4. The main stirring frame drives the sub-stirring frame to rotate through the transmission assembly;

[0020] S5. After the stirring is completed, the viscosity of the solution is detected in real time through the probe;

[0021] S6a. If the solution concentration is lower than the specified value, perform S2;

[0022] S6b. If the solution concentration reaches the specified value, complete the test and record the test data.

[0023] The beneficial effects of the present invention compared with the prior art are as follows:

[0024] 1. The present invention realizes the function of stirring the solution when adding solute through the compounding tank and the stirring device, achieves the effect of measuring the viscosity of solutions with different concentrations, while stirring the solution with the main stirring frame, further refines and disperses the solution by the rotation of the sub-stirring frame, avoids the situation where the solute forms clusters and cannot be dispersed, and solves the problem that traditional compounding equipment cannot mix the solution in time when adding solute at high frequency.

[0025] 2. The present invention realizes the function of scraping the solute or polymer molecules in the solution adhering to the inner wall of the compounding tank through the main scraper, the sub-scraper and the reciprocating drive assembly, achieves the effect of further avoiding uneven mixing of the solute, and thus improves the accuracy of measuring the viscosity of solutions with different concentrations. Description of the Drawings

[0026] Figure 1 is a three-dimensional schematic diagram of a compounding device.

[0027] Figure 2 is a three-dimensional schematic diagram of the internal structure of the compounding tank in a compounding device.

[0028] Figure 3 is a three-dimensional schematic diagram of the stirring device and the scraping mechanism in a compounding device.

[0029] Figure 4 is a top view of a compounding device after the cover is opened.

[0030] Figure 5 is a three-dimensional exploded schematic diagram of the main stirring frame, the sub-stirring frame and the first transmission assembly in a compounding device.

[0031] Figure 6 is Figure 5 a partial enlarged schematic diagram of part A in

[0032] Figure 7 is a three-dimensional exploded schematic diagram of the scraping mechanism in a compounding device.

[0033] Figure 8 It is a three-dimensional exploded view of a reciprocating drive assembly and a pushing assembly in a compounding device.

[0034] Figure 9 It is a three-dimensional schematic diagram of a rotary drive assembly in a compounding device.

[0035] Figure 10 It is a three-dimensional schematic diagram of a stirring device and a scraping mechanism in a compounding device when the secondary scraper is opened.

[0036] The reference numerals in the figure are: 1 - compounding tank; 11 - cover body; 12 - support shaft; 121 - probe; 13 - rotary drive assembly; 131 - rotary driver; 132 - sleeve; 133 - connecting shaft; 134 - bracket; 135 - worm gear; 136 - worm; 2 - stirring device; 21 - main stirring frame; 211 - secondary stirring frame; 22 - first transmission assembly; 221 - first rotating gear; 222 - first rotating shaft; 223 - second rotating gear; 224 - second rotating shaft; 225 - belt pulley; 226 - transmission belt; 3 - scraping mechanism; 31 - main scraper; 311 - arc guide rod; 312 - limit block; 32 - secondary scraper; 33 - reciprocating drive assembly; 331 - push block; 3311 - chute; 332 - fixed shaft; 333 - push rod; 34 - pushing assembly; 341 - slider; 342 - connecting rod. Detailed implementation manners

[0037] To further understand the features, technical means, specific purposes and functions achieved by the present invention, the present invention will be further described in detail below in conjunction with the accompanying drawings and specific implementation manners.

[0038] Refer to Figures 1-3 : A compounding device, including a compounding tank 1, a cover body 11 is provided on the compounding tank 1, a support shaft 12 is provided in the compounding tank 1, a probe 121 for testing the viscosity of the solution in the compounding tank 1 is provided on the support shaft 12, a stirring device 2 is provided in the compounding tank 1, the stirring device 2 includes a main stirring frame 21 and a transmission assembly, the main stirring frame 21 is rotatably sleeved on the support shaft 12, a rotary drive assembly 13 for driving the main stirring frame 21 to rotate is provided on the cover body 11, a secondary stirring frame 211 is rotatably provided on the main stirring frame 21, and in the working state, when the main stirring frame 21 rotates, it drives the secondary stirring frame 211 to rotate through the transmission assembly.

[0039] The present invention realizes the function of stirring the solution when adding solute through the compounding tank 1 and the stirring device 2, achieves the effect of measuring the viscosities of solutions with different concentrations, and through the stirring device 2, while agitating the solution by the main stirring frame 21, the effect of further refining and dispersing the solution is achieved by the rotation of the auxiliary stirring frame 211, avoiding the situation where the solute forms clusters and cannot be dispersed, and solving the problem that the traditional compounding equipment cannot mix the solution in time when adding solute at a high frequency. A support frame is provided at the bottom of the compounding tank 1, and a metering pump and a storage tank for transporting raw materials are provided on the side of the compounding tank 1. An annular tray for supporting the auxiliary stirring frame 211 is provided on the main stirring frame 21, guiding the rotation of the auxiliary stirring frame 211 and giving support to the auxiliary stirring frame 211 at the same time. A controller for human-machine interaction is provided on the cover body 11, and the rotation drive assembly 13 is electrically connected to the controller; in the working state, the operator first injects a solvent into the compounding tank 1, then injects a certain amount of solute into the compounding tank 1 through the metering pump, and then starts the rotation drive assembly 13. The rotation drive assembly 13 drives the main stirring frame 21 to rotate. When the main stirring frame 21 rotates, it drives the auxiliary stirring frame 211 to rotate through the transmission assembly. The overall stirring is carried out by the rotation of the main stirring frame 21, and then the local refining stirring is carried out by the auxiliary stirring frame 211, which can not only quickly mix the solution but also avoid the situation where the solution forms clusters. During the process of mixing the solution, the viscosity change of the solution is measured in real time by the probe 121. When measuring the viscosities of solutions with different concentrations, a certain amount of solute needs to be added frequently. After adding the solute, efficient stirring is carried out to mix the solution, thereby improving the detection accuracy.

[0040] Refer to Figure 3 and Figure 4 : A scraping mechanism 3 is provided in the compounding tank 1. The scraping mechanism 3 includes a main scraper 31, an auxiliary scraper 32 and a reciprocating drive assembly 33. The main scraper 31 and the auxiliary scraper 32 are arranged on the main stirring frame 21, and a reciprocating drive assembly 33 for controlling the reciprocating movement of the auxiliary scraper 32 is provided on the main stirring frame 21.

[0041] The present invention realizes the function of scraping the polymer molecules in the solute or solution adhering to the inner wall of the compounding tank 1 through the main scraper 31, the auxiliary scraper 32 and the reciprocating drive assembly 33, achieving the effect of further avoiding uneven mixing of the solute, and thus improving the accuracy of measuring the viscosity of solutions with different concentrations. During the mixing process of the fluorine-modified acrylate solution, since the fluorine-modified acrylate solution may have a relatively high viscosity, it is likely to adhere to the inner wall of the tank during the mixing process, and the traditional stirring equipment cannot reach the inner wall of the compounding tank 1, thus affecting the solution mixing situation. Therefore, a scraping mechanism 3 is provided. When the rotary drive assembly 13 drives the main stirring frame 21 to rotate, the main scraper 31 is driven to rotate by the main stirring frame 21, and then the polymer molecules in the solute or solution adhering to the inner wall of the compounding tank 1 are scraped off by the main scraper 31. Then, the solution is mixed by the main stirring frame 21 and the auxiliary stirring frame 211. And during the rotation of the main scraper 31, the auxiliary scraper 32 is driven by the reciprocating drive assembly 33 to reciprocate relative to the main scraper 31, and thus the scraping effect is improved by the repeated friction of the auxiliary scraper 32 on the inner wall of the compounding tank 1.

[0042] Refer to Figure 3 , Figure 5 and Figure 6 : The first transmission assembly 22 includes a first rotating gear 221, a first rotating shaft 222 and a second rotating gear 223; the first rotating gear 221 is fixedly sleeved on the support shaft 12, the support shaft 12 is fixedly connected to the inner wall of the compounding tank 1, the first rotating shaft 222 is rotatably arranged on the main stirring frame 21, the second rotating gear 223 is sleeved on the first rotating shaft 222, the first rotating gear 221 and the second rotating gear 223 are meshed and connected, and the first rotating shaft 222 is in transmission connection with the auxiliary stirring frame 211.

[0043] The present invention realizes the function of driving the secondary stirring frame 211 to rotate when the main stirring frame 21 rotates through the first rotating gear 221, the first rotating shaft 222 and the second rotating gear 223. A second rotating shaft 224 is rotatably provided on the main stirring frame 21. The secondary stirring frame 211 is connected to the second rotating shaft 224. A pulley 225 is sleeved on each of the first rotating shaft 222 and the second rotating shaft 224. A transmission belt 226 is strung across the pulleys 225, and the transmission belt 226 connects the two pulleys 225. When the rotating drive assembly 13 drives the main stirring frame 21 to rotate, the main stirring frame 21 drives the first rotating shaft 222 to rotate, so that the first rotating shaft 222 and the second rotating gear 223 rotate around the axis of the support shaft 12. The support shaft 12 and the first rotating gear 221 are fixed. When the second rotating gear 223 rotates following the main stirring frame 21, the second rotating gear 223 and the first rotating shaft 222 rotate around the axis of the first rotating shaft 222. The first rotating shaft 222 drives the second rotating shaft 224 to rotate through the pulley 225 and the transmission belt 226. The second rotating shaft 224 drives the secondary stirring frame 211 to rotate, and then the solution in the compounding tank 1 is stirred by the main stirring frame 21 and the secondary stirring frame 211.

[0044] Refer to Figure 3 , Figure 4 and Figure 7 : An arc-shaped guide rod 311 is provided on the main scraper 31. The secondary scraper 32 is slidably matched with the arc-shaped guide rod 311. A pushing assembly 34 is provided on the main stirring frame 21. The reciprocating drive assembly 33 drives the secondary scraper 32 to slide reciprocally along the arc-shaped guide rail through the pushing assembly 34.

[0045] The present invention realizes the function of driving the secondary scraper 32 to move stably through the arc-shaped guide rail and the pushing assembly 34. The movement of the secondary scraper 32 is guided by the arc-shaped guide rail, so that the secondary scraper 32 is always parallel to the main scraper 31 during the movement. When the rotating drive assembly 13 drives the main stirring frame 21 to rotate, the main stirring frame 21 drives the first rotating shaft 222 to rotate, so that the first rotating shaft 222 and the second rotating gear 223 rotate around the axis of the support shaft 12. The support shaft 12 and the first rotating gear 221 are fixed. When the second rotating gear 223 rotates following the main stirring frame 21, the second rotating gear 223 and the first rotating shaft 222 rotate around the axis of the first rotating shaft 222. The first rotating shaft 222 drives the second rotating shaft 224 to rotate through the pulley 225 and the transmission belt 226. The second rotating shaft 224 drives the secondary stirring frame 211 to rotate. When the main stirring frame 21 rotates, it drives the main scraper 31 to move. And during the movement of the main scraper 31, the reciprocating drive assembly 33 drives the secondary scraper 32 to move reciprocally along the arc-shaped guide rail through the pushing assembly 34. When the main scraper 31 performs a scraping action, some solutes or polymer molecules in the solution that adhere relatively tightly are scraped off through the reciprocating movement of the secondary scraper 32.

[0046] Refer to Figure 3 andFigure 7 One end of the arc-shaped guide rod 311 away from the main scraper 31 is provided with a limit block 312 for restricting the moving range of the sub-scraper 32.

[0047] The present invention realizes the function of restricting the moving range of the sub-scraper 32 through the limit block 312, achieving the effect of preventing the sub-rod body from falling off the main stirring frame 21 during the reciprocating movement. And during the process of adding solute, the viscosity of the solution will increase. In order to reduce the shear force on the high-viscosity solution and avoid property change or structural damage of the solution caused by excessive shearing, the stirring is carried out in a low-speed stirring manner. After reducing the rotation speed of the main stirring frame 21, the rotation speed of the sub-stirring frame 211 will also decrease relatively, so that during the reciprocating movement of the sub-scraper 32, its rotation speed following the rotation of the main stirring frame 21 will not be too high, further ensuring the moving stability of the sub-scraper 32.

[0048] Refer to Figure 4 and Figure 8 The pushing component 34 includes a slider 341 and a connecting rod 342. The slider 341 is slidably installed on the main stirring frame 21. Hinge seats are provided on both the slider 341 and the sub-scraper 32. Two ends of the connecting rod 342 are respectively hinged to the hinge seats on the slider 341 and the sub-scraper 32. The slider 341 is in transmission connection with the driving end of the reciprocating driving component 33.

[0049] The present invention realizes the function of pushing the sub-scraper 32 to move through the slider 341 and the connecting rod 342. During the movement of the main scraper 31, the reciprocating driving component 33 drives the slider 341 to reciprocate along the main stirring frame 21. The slider 341 pushes or pulls the sub-scraper 32 to move through the connecting rod 342. The sub-scraper 32 reciprocally slides along the inner wall of the compounding tank 1 under the guiding action of the arc-shaped guide rod 311. When the main scraper 31 performs a scraping action, some solutes or polymer molecules in the solution that adhere more tightly are scraped off through the reciprocating movement of the sub-scraper 32.

[0050] Refer to Figure 4 and Figure 8 The reciprocating driving component 33 includes a push block 331, a fixed shaft 332 and a push rod 333. The push block 331 is slidably installed on the main stirring frame 21. The fixed shaft 332 is arranged on the sub-stirring frame 211, and the axis of the fixed shaft 332 deviates from the axis around which the sub-stirring frame 211 rotates. Two ends of the push rod 333 are respectively connected to the push block 331 and the slider 341. A chute 3311 is formed on the push block 331. The fixed shaft 332 is in sliding fit with the chute 3311 on the push block 331.

[0051] The present invention realizes the function of driving the secondary scraper 32 to move by means of the pushing block 331, the fixed shaft 332 and the push rod 333. In the working state, when the secondary stirring frame 211 rotates, the side wall of the chute 3311 on the pushing block 331 is pushed by the fixed shaft 332 on the secondary stirring frame 211, thereby driving the pushing block 331 to move. The pushing block 331 drives the slider 341 to move through the push rod 333. The slider 341 drives or pulls the secondary scraper 32 to move through the connecting rod 342. The secondary scraper 32 reciprocally slides along the inner wall of the compounding tank 1 under the guiding action of the arc-shaped guide rod 311. When the main scraper 31 performs the scraping action, the secondary scraper 32 reciprocally moves to scrape some solutes or polymer molecules in the solution that adhere relatively tightly.

[0052] Refer to Figure 1 、 Figure 2 and Figure 9 : The rotation drive assembly 13 includes a rotation driver 131, a sleeve 132 and a connecting shaft 133. The rotation driver 131 is installed on the cover 11. The sleeve 132 is arranged on the main stirring frame 21. The connecting shaft 133 is connected to the sleeve 132 and is rotatably connected to the cover 11. The rotation driver 131 is used to drive the connecting shaft 133 to rotate.

[0053] The present invention realizes the function of driving the main stirring frame 21 to rotate by means of the rotation driver 131, the sleeve 132 and the connecting shaft 133. The rotation driver 131 is preferably a servo motor, and the servo motor is electrically connected to the controller. After the equipment is started, the controller sends a signal to the rotation driver 131. After receiving the signal, the rotation driver 131 drives the connecting shaft 133 to rotate. The connecting shaft 133 drives the main stirring frame 21 to rotate through the sleeve 132 to perform the stirring action.

[0054] Refer to Figure 1 、 Figure 2 and Figure 9 : A bracket 134 is provided on the cover 11. A worm gear 135 is sleeved on the connecting shaft 133. A worm 136 is rotatably provided on the bracket 134. The worm 136 is meshed and connected with the worm gear 135. The driving end of the rotation driver 131 is in transmission connection with the worm 136.

[0055] The present invention realizes the functions of reducing the rotational speed and increasing the torque through the bracket 134, the worm gear 135, and the worm 136. Due to the high viscosity of the solution, the main stirring frame 21 is stirred in a low-speed stirring manner. Therefore, the main stirring frame 21 does not require a high rotational speed. To improve the stirring stability of the main stirring frame 21, a speed reduction mechanism of the worm gear 135 and the worm 136 is provided. After starting the device, the controller sends a signal to the rotary driver 131. After receiving the signal, the rotary driver 131 drives the worm 136 to rotate. The worm 136 drives the worm gear 135 engaged with it to rotate. The worm gear 135 drives the connecting shaft 133 to rotate. The connecting shaft 133 drives the main stirring frame 21 to rotate through the sleeve 132 to perform the stirring action.

[0056] Refer to Figures 1-5 : A compounding method for testing the viscosity of solutions with different concentrations, comprising the following steps:

[0057] S1. Inject a solvent into the reciprocating mixing tank 1;

[0058] S2. Inject a specified dose of solute into the compounding tank 1 through a metering pump;

[0059] S3. Start the rotary drive assembly 13, and the rotary drive assembly 13 drives the main stirring frame 21 to rotate;

[0060] S4. The main stirring frame 21 drives the secondary stirring frame 211 to rotate through the transmission assembly;

[0061] S5. After the stirring is completed, the viscosity of the solution is detected in real time through the probe 121;

[0062] S6a. If the solution concentration is lower than the specified value, perform S2;

[0063] S6b. If the solution concentration reaches the specified value, complete the test and record the test data.

[0064] The above embodiments only represent one or several implementation manners of the present invention, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of the present invention. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present invention, several modifications and improvements can still be made, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.

Claims

1. A compounding device, comprising a compounding tank (1), wherein the compounding tank (1) is provided with a cover (11), characterized in that: A supporting shaft (12) is arranged in the compounding tank (1), and a probe (121) for testing the viscosity of the solution in the compounding tank (1) is arranged on the supporting shaft (12). A stirring device (2) is arranged in the compounding tank (1), and the stirring device (2) comprises a main stirring frame (21) and a transmission assembly. The main stirring frame (21) is rotatably sleeved on the supporting shaft (12), and a rotary drive assembly (13) for driving the main stirring frame (21) to rotate is arranged on the cover body (11). A secondary stirring frame (211) is rotatably arranged on the main stirring frame (21), and in a working state, the main stirring frame (21) drives the secondary stirring frame (211) to rotate through the transmission assembly when rotating.

2. A compounding device according to claim 1, characterized in that: A scraping mechanism (3) is provided in the compounding tank (1), the scraping mechanism (3) comprising a main scraper (31), an auxiliary scraper (32) and a reciprocating drive assembly (33), the main scraper (31) and the auxiliary scraper (32) are arranged on a main stirring frame (21), and the main stirring frame (21) is provided with a reciprocating drive assembly (33) for controlling the reciprocating movement of the auxiliary scraper (32).

3. A compounding device according to claim 1, characterized in that: The first transmission assembly (22) comprises a first rotating gear (221), a first rotating shaft (222) and a second rotating gear (223); the first rotating gear (221) is fixedly sleeved on the supporting shaft (12), the supporting shaft (12) is fixedly connected to the inner wall of the compounding tank (1), the first rotating shaft (222) is rotatably arranged on the main stirring frame (21), the second rotating gear (223) is sleeved on the first rotating shaft (222), the first rotating gear (221) and the second rotating gear (223) are meshedly connected, and the first rotating shaft (222) is transmission-connected to the auxiliary stirring frame (211).

4. A compounding device according to claim 2, characterized in that: The main scraper (31) is provided with an arc-shaped guide rod (311), the auxiliary scraper (32) is slidably matched with the arc-shaped guide rod (311), and the main stirring frame (21) is provided with a pushing assembly (34), and the reciprocating driving assembly (33) drives the auxiliary scraper (32) to slide reciprocatingly along the arc-shaped guide rail through the pushing assembly (34).

5. A compounding device according to claim 4, characterized in that: A limit block (312) for limiting the moving range of the auxiliary scraper (32) is provided at one end of the arc-shaped guide rod (311) away from the main scraper (31).

6. A compounding device according to claim 4, characterized in that: The pushing assembly (34) comprises a slider (341) and a connecting rod (342). The slider (341) is slidably mounted on the main stirring frame (21). Both the slider (341) and the auxiliary scraper (32) are provided with hinge seats. Both ends of the connecting rod (342) are hinged to the hinge seats on the slider (341) and the auxiliary scraper (32) respectively. The slider (341) is drivingly connected to the driving end of the reciprocating driving assembly (33).

7. A compounding device according to claim 6, characterized in that: The reciprocating drive assembly (33) comprises a push block (331), a fixed shaft (332) and a push rod (333); the push block (331) is slidably mounted on the main stirring frame (21); the fixed shaft (332) is arranged on the auxiliary stirring frame (211); the axis of the fixed shaft (332) deviates from the axis around which the auxiliary stirring frame (211) rotates; the two ends of the push rod (333) are respectively connected to the push block (331) and the slider (341); a slide groove (3311) is provided on the push block (331); the fixed shaft (332) and the slide groove (3311) on the push block (331) are slidably matched.

8. A compounding device according to claim 1, characterized in that: The rotary drive assembly (13) comprises a rotary drive (131), a sleeve (132) and a connecting shaft (133); the rotary drive (131) is mounted on the cover body (11); the sleeve (132) is arranged on the main stirring frame (21); the connecting shaft (133) is connected to the sleeve (132); and the connecting shaft (133) is rotatably connected to the cover body (11); the rotary drive (131) is used to drive the connecting shaft (133) to rotate.

9. A compounding device according to claim 8, characterized in that: A bracket (134) is provided on the cover body (11), a worm wheel (135) is sleeved on the connecting shaft (133), a worm (136) is rotatably provided on the bracket (134), the worm (136) is meshingly connected with the worm wheel (135), and the driving end of the rotary driver (131) is drivingly connected with the worm (136).

10. A compounding method for testing the viscosity of solutions of different concentrations, using a compounding device as described in any one of claims 1 to 9, characterized in that: The following steps are involved: S1, injecting solvent into the re-preparation tank (1); S2, injecting a specified amount of solute into the compounding tank (1) through a metering pump; S3, starting the rotary drive assembly (13), the rotary drive assembly (13) drives the main stirring frame (21) to rotate; S4, the main stirring frame (21) drives the auxiliary stirring frame (211) to rotate through the transmission assembly; S5, after the stirring is completed, the viscosity of the solution is detected in real time by a probe (121); S6a, solution concentration is lower than the specified value, proceed to S2; S6b. When the solution concentration reaches the specified value, the test is completed and the test data is recorded.

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