Stirring unit for water-based paint stirrer
Through the coordinated rotation of the inner agitator and the outer stirring frame and the design of the side scraper and bottom scraper, combined with the high-speed dispersion component, the problems of wall adhesion and uneven mixing in the mixer are solved, the uniform mixing of the coating and the cleaning of the kettle are achieved, and the stirring effect and resource utilization are improved.
Patent Information
- Application Number
- CN202422837335.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-20
- Publication Date
- 2025-09-30
- Estimated Expiration
- 2034-11-20
AI Technical Summary
The scraper of the existing mixer cannot fit completely with the inner wall of the tank, resulting in incomplete stirring of the raw materials in the reactor, uneven mixing and wall adhesion, which affects the quality of the coating and causes waste of resources.
The stirring unit includes a stirring component and a dispersing component. The inner stirrer rotates in coordination with the outer stirring frame. The side scrapers and bottom scrapers abut against the inner wall of the reactor. Combined with the high-speed rotating dispersing component, comprehensive stirring and cleaning are achieved, dead angles are reduced, and mixing uniformity and cleanliness are improved.
It realizes comprehensive stirring of raw materials in the reactor, reduces local unevenness, improves coating quality and cleanliness, avoids waste of raw materials, ensures uniform distribution of raw materials and cleanliness of the reactor wall.
Smart Images
Figure CN223393300U_ABST
Abstract
Description
Technical Field
[0001] The present application relates to the technical field of mixers, and in particular to a mixing unit for a water-based paint mixer. Background Art
[0002] During the processing of water-based paints, a mixer is often required to agitate the raw materials. A mixer uses mechanical force to rotate the stirring blades or agitator to generate shear and extrusion forces to mix the various raw materials. The purpose is to break up the particles or dispersions in the paint and evenly distribute them in the solvent. The quality and performance of the paint can be greatly improved by the stirring of the paint mixer.
[0003] Because water-based paint is a viscous liquid, a large amount of raw materials will remain on the inner wall of the reactor during the mixing process, resulting in a phenomenon of sticking to the wall. Therefore, it is necessary to scrape the raw materials off the inner wall of the reactor to ensure uniform mixing of the raw materials and reduce the waste of raw material resources. However, the scraper of the existing mixer does not completely fit the inner wall of the tank. There is a gap between the scraper and the inner wall of the tank, resulting in incomplete stirring of the raw materials in the reactor, resulting in uneven mixing, which affects the quality of the finished paint. Utility Model Content
[0004] In order to effectively scrape off the raw materials attached to the inner wall of the reactor, avoid wall hanging phenomenon, ensure uniform mixing of the raw materials, and reduce raw material waste, the present application provides a stirring unit for a water-based paint mixer.
[0005] In order to achieve the above objectives, this application adopts the following technical solutions:
[0006] A stirring unit for a water-based paint mixer comprises a stirring assembly and a dispersing assembly, wherein the stirring assembly is arranged in the middle of a reactor, and the dispersing assembly is arranged on one side of the stirring assembly; the stirring assembly comprises a driving motor arranged at the top of the reactor and a stirring shaft, an internal agitator and an external stirring frame arranged in the reactor, the stirring shaft is connected to the output end of the driving motor, the internal agitator and the external stirring frame are both sleeved on the stirring shaft, and the internal agitator is arranged in the external stirring frame, and the external stirring frame is provided with side scrapers and a bottom scraper, and the side scrapers and the bottom scraper are both in contact with the inner wall of the reactor.
[0007] By adopting the above-mentioned device, the stirring shaft is driven to rotate by the first drive motor, and then the inner stirrer and the outer stirring frame installed on the stirring shaft are driven to rotate at the same time. Under the cooperation of the inner stirrer and the outer stirring frame, the stirring of the raw materials is made more uniform. Among them, the inner stirrer stirs the raw materials in the center part of the reactor, and the outer stirring frame stirs the raw materials near the edge of the reactor, thereby improving the mixing effect of the raw materials, so that the raw materials in the reactor can be stirred more comprehensively and thoroughly, reducing the situation of local uneven mixing, and improving the uniformity and quality of the coating. In addition, the side scrapers and bottom scrapers on the outer stirring frame abut against the inner wall of the reactor, which helps to clean the raw material residue on the inner wall of the reactor, reduce the accumulation of raw materials on the inner wall, and ensure the uniform distribution of raw materials and the cleanliness of the reactor. The dispersion component operates through high-speed rotation and the action of centrifugal force, which can quickly subject the raw materials to centrifugal high-speed collision, effectively breaking up particle agglomeration and achieving rapid dispersion.
[0008] Preferably, a plurality of side scrapers are provided, the side scrapers on the same side of the outer stirring frame are distributed at intervals, and the side scrapers on both sides of the outer stirring frame are distributed alternately.
[0009] By adopting this device, the staggered distribution of side scrapers reduces dead angles during the stirring process, ensuring that every part of the stirring area is fully stirred, and improving the stirring effect. During cleaning, the occurrence of paint sticking to the wall is reduced, ensuring the complete cleaning of the inner wall of the reactor and reducing the accumulation of paint on the inner wall of the reactor.
[0010] Preferably, two bottom scrapers are provided, the bottom shape of the outer stirring frame is adapted to the bottom of the reactor, and one of the two bottom scrapers is close to the stirring shaft, while the other is away from the stirring shaft.
[0011] By adopting the above device, due to the asymmetric position distribution of the two bottom scrapers, dead angles during stirring can be reduced, ensuring comprehensive cleaning of the bottom of the reactor, avoiding accumulation of materials at the bottom, and helping to improve stirring effect and product quality.
[0012] Preferably, the internal stirrer includes stirring paddles distributed in two layers, and the stirring paddles in the upper and lower layers are perpendicular to each other in the horizontal direction.
[0013] By adopting the above device, the double-layer distributed stirring paddles can evenly stir the coatings in the upper and lower parts of the reactor, thereby improving the mixing effect and quality of the coatings.
[0014] Preferably, each layer of the stirring paddle includes two blades, and the two blades are bent 45 degrees to 60 degrees in opposite directions.
[0015] By adopting the above device, the two blades of each layer of stirring paddles are bent 45-60 degrees in opposite directions, and the axial force generated by the blades is used to achieve mixing and stirring of the liquid. When the stirring paddles rotate, the blades push the liquid coating in the reactor to flow axially, forming an up and down circulation flow, thereby achieving uniform mixing of the coating.
[0016] Preferably, the dispersion assembly includes a second drive motor arranged on the top of the reactor and a transmission shaft and a dispersion disk arranged inside the reactor, the transmission shaft is connected to the output end of the second drive motor, and the dispersion disk is sleeved on the transmission shaft.
[0017] Preferably, two dispersion discs are provided, and the two dispersion discs are arranged in upper and lower layers.
[0018] By adopting the above device, the paint is subjected to strong shearing and mixing under the action of the dispersion component, achieving the purpose of rapid mixing. Among them, the second drive motor drives the upper and lower dispersion discs to rotate at high speed, thereby achieving a more efficient dispersion and mixing process.
[0019] Preferably, the two layers of stirring paddles and the two layers of dispersion disks are staggered in the vertical direction.
[0020] By adopting the above device, the staggered distribution of stirring paddles and dispersion disks can increase the shear rate of the fluid and achieve a better mixing effect.
[0021] This application has the following beneficial effects:
[0022] 1. In the present application, the stirring shaft is driven to rotate by a first driving motor, thereby driving the inner stirrer and the outer stirring frame installed on the stirring shaft to rotate at the same time. Under the cooperation of the inner stirrer and the outer stirring frame, the stirring of the raw materials is made more uniform. Among them, the inner stirrer stirs the raw materials in the center part of the reactor, and the outer stirring frame stirs the raw materials near the edge of the reactor, thereby improving the mixing effect of the raw materials, so that the raw materials in the reactor can be stirred more comprehensively and thoroughly, reducing the situation of local uneven mixing, and improving the uniformity and quality of the coating. In addition, the side scrapers and bottom scrapers on the outer stirring frame abut against the inner wall of the reactor, which helps to clean the raw material residues on the inner wall of the reactor, reduce the accumulation of raw materials on the inner wall, and ensure the uniform distribution of raw materials and the cleanliness of the reactor. The dispersion component operates through the action of high-speed rotation and centrifugal force, which can quickly centrifuge the raw materials at high speed, effectively break the particle agglomeration, and achieve rapid dispersion.
[0023] 2. In this application, due to the asymmetric position distribution of the two bottom scrapers, the dead angle during stirring can be reduced, ensuring the comprehensive cleaning of the bottom of the reactor, avoiding the accumulation of materials at the bottom, which is conducive to improving the stirring effect and product quality. BRIEF DESCRIPTION OF THE DRAWINGS
[0024] Figure 1 This is a cross-sectional view of a stirring unit for a water-based paint stirring machine according to an embodiment of the present utility model;
[0025] Figure 2 It is a schematic diagram of a stirring unit, a stirring component and a dispersing component for a water-based paint stirring machine according to an embodiment of the present invention.
[0026] Description of reference numerals:
[0027] 1. Stirring assembly; 11. First drive motor; 12. Stirring shaft; 13. Internal agitator; 131. Stirring paddle; 131a. Blade; 14. External stirring frame; 15. Side scraper; 16. Bottom scraper; 2. Dispersion assembly; 21. Second drive motor; 22. Drive shaft; 23. Dispersion disk; 3. Reactor. DETAILED DESCRIPTION
[0028] The following is combined with Figure 1-2 This application is described in further detail.
[0029] A stirring unit for a water-based paint mixer, such as Figure 1 As shown, the stirring assembly 1 and the dispersing assembly 2 are included. The stirring assembly 1 is installed in the middle of the reactor 3, and the dispersing assembly 2 is arranged side by side with the stirring assembly 1, and the dispersing assembly 2 is installed between the edge of the reactor 3 and the stirring assembly 1. During operation, the stirring assembly 1 and the dispersing assembly 2 operate simultaneously, which helps to improve the stirring efficiency and mixing uniformity of the raw materials.
[0030] Specifically, such as Figure 1 As shown, the stirring assembly 1 includes a first drive motor 11, a stirring shaft 12, an inner stirrer 13 and an outer stirring frame 14. Among them, the first drive motor 11 is fixedly mounted on the top of the reactor 3, and the output end of the first drive motor 11 is connected to the stirring shaft 12 through a coupling to drive the stirring shaft 12 to rotate. The inner stirrer 13 and the outer stirring frame 14 are both located in the reactor 3 and are both fixed on the stirring shaft 12. During operation, the stirring shaft 12 is driven to rotate by the first drive motor 11, and the stirring shaft 12 drives the inner stirrer 13 and the outer stirring frame 14 to rotate simultaneously, thereby stirring the raw materials and achieving uniform mixing of the raw materials.
[0031] like Figure 2As shown, the internal agitator 13 is entirely located within the external stirring frame 14. The internal agitator 13 includes two layers of stirring paddles 131, each arranged vertically and perpendicular to each other in the horizontal direction. This allows the paint in both the upper and lower portions of the reactor 3 to be evenly stirred, improving the mixing effect and quality of the paint. Each layer of stirring paddles 131 includes two blades 131a. In this embodiment, the two blades 131a are bent 45 degrees in opposite directions. In other embodiments, the angles of the two blades 131a can be 50 degrees, 55 degrees, 60 degrees, etc. The axial force generated by the blades 131a achieves mixing and stirring of the raw materials. When the stirring shaft 12 rotates, the blades 131a push the paint in the reactor 3 along the axial direction, forming an upward and downward circulation flow, thereby achieving uniform mixing of the paint. In this embodiment, the upper and lower layers of the stirring paddles 131 of the internal agitator 13 can be fixed to the stirring shaft 12 by bolts, or a snap-on connection can be used for easy disassembly and cleaning.
[0032] like Figure 2 As shown, both sides of the outer stirring frame 14 are parallel to the inner wall of the reactor 3, and the bottom shape of the outer stirring frame 14 is adapted to the bottom shape of the reactor 3. The outer stirring frame 14 can stir the raw materials near the edge of the reactor 3, so that the raw materials in the reactor 3 can be stirred more comprehensively and thoroughly, reducing the situation of local uneven mixing and improving the uniformity and quality of the coating.
[0033] like Figure 2 As shown, a plurality of side scrapers 15 are provided on both sides of the outer stirring frame 14, and the side scrapers 15 are closely attached to the inner sidewalls of the reactor 3. Furthermore, the side scrapers 15 on the same side of the outer stirring frame 14 are evenly spaced, while the side scrapers 15 on different sides are staggered. This helps reduce dead angles during the stirring process, ensures that every part within the stirring area is fully stirred, and improves the stirring effect. When the reactor 3 needs to be cleaned, the side scrapers 15 can clean the residual paint on the inner wall of the reactor 3, reducing the phenomenon of paint sticking to the wall.
[0034] like Figure 2As shown, in order to further reduce dead angles during the stirring process, two bottom scrapers 16 are provided at the bottom of the outer stirring frame 14. The shape of the two bottom scrapers 16 on the side close to the bottom wall of the reactor 3 is adapted to the shape of the bottom of the reactor 3, so that the two bottom scrapers 16 can be closely attached to the inner wall of the reactor 3, reducing the gap between the bottom scrapers 16 and the inner wall of the reactor 3. In addition, one of the two bottom scrapers 16 is close to the stirring shaft 12, and the other is away from the stirring shaft 12, ensuring that the raw materials at the bottom of the reactor 3 can also be evenly mixed. In this embodiment, the side scrapers 15 and the bottom scraper 16 can be made of an elastic material (such as rubber) with a certain degree of flexibility, which can better fit the inner wall of the reactor 3 and reduce gaps. The side scrapers 15 and the bottom scraper 16 can also be fine-tuned by adjusting screws to adapt to the inner wall of the reactor 3 of different diameters and shapes.
[0035] like Figure 2 As shown, the dispersion assembly 2 includes a second drive motor 21, a transmission shaft 22, and a dispersion disc 23. The second drive motor 21 is disposed on the top of the reactor 3, and the transmission shaft 22 and the dispersion disc 23 are both disposed inside the reactor 3. The output end of the second drive motor 21 is connected to the transmission shaft 22 to provide power for the transmission shaft 22, while the dispersion disc 23 is fixed to the transmission shaft 22.
[0036] like Figure 2 As shown, two dispersion discs 23 are provided, arranged in an upper and lower layer. The two layers of agitator paddles 131 are vertically offset from the two layers of dispersion discs 23. During operation, the second drive motor 21 drives the dispersion discs 23 to rotate at high speed, and the raw materials are subjected to strong shearing and mixing under the action of the dispersion discs 23 to achieve the purpose of rapid mixing.
[0037] Working principle: The stirring component 1 and the dispersing component 2 cooperate to form a multi-level stirring and dispersing effect, thereby improving the mixing uniformity. Among them, the internal agitator 13 stirs the raw materials in the center part of the reactor 3, and the external stirring frame 14 stirs the raw materials near the edge of the reactor 3, thereby improving the mixing effect of the raw materials, so that the raw materials in the reactor 3 can be stirred more comprehensively and thoroughly, and the situation of local uneven mixing can be reduced. The coating is quickly dispersed and mixed under the action of the dispersion plate 23, further improving the uniformity of the coating. The side scrapers 15 and the bottom scrapers 16 on the external stirring frame 14 can effectively scrape the raw materials on the inner wall of the reactor 3, ensuring that the raw materials are mixed evenly and reducing the waste of raw materials.
[0038] Finally, it should be noted that the above is only a preferred embodiment of the present application and is not intended to limit the present application. Although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent replacements for some of the technical features therein. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present application should be included in the scope of protection of the present application.
Claims
1. A stirring unit for a water-based paint mixer, characterized in that: The invention comprises a stirring assembly (1) and a dispersing assembly (2), wherein the stirring assembly (1) is arranged in the middle of the reactor (3), and the dispersing assembly (2) is arranged on one side of the stirring assembly (1); the stirring assembly (1) comprises a first driving motor (11) arranged on the top of the reactor (3), and a stirring shaft (12), an internal stirrer (13) and an external stirring frame (14) arranged in the reactor (3); the stirring shaft (12) is connected to the output end of the first driving motor (11); the internal stirrer (13) and the external stirring frame (14) are both sleeved on the stirring shaft (12), and the internal stirrer (13) is arranged in the external stirring frame (14); the external stirring frame (14) is provided with a side scraper (15) and a bottom scraper (16); the side scraper (15) and the bottom scraper (16) are both in contact with the inner wall of the reactor (3).
2. A stirring unit for a water-based paint mixer according to claim 1, characterized in that: A plurality of side scrapers (15) are provided, the side scrapers (15) on the same side of the outer stirring frame (14) are spaced apart, and the side scrapers (15) on both sides of the outer stirring frame (14) are staggered.
3. A stirring unit for a water-based paint mixer according to claim 1, characterized in that: Two bottom scrapers (16) are provided, the bottom shape of the outer stirring frame (14) is adapted to the bottom of the reactor (3), and one of the two bottom scrapers (16) is close to the stirring shaft (12), while the other is away from the stirring shaft (12).
4. A stirring unit for a water-based paint mixer according to claim 1, characterized in that: The internal stirrer (13) comprises stirring paddles (131) distributed in two layers, upper and lower, and the stirring paddles (131) in the upper and lower layers are perpendicular to each other in the horizontal direction.
5. A stirring unit for a water-based paint mixer according to claim 4, characterized in that: Each layer of the stirring paddle (131) includes two blades (131a), and the two blades (131a) are bent 45 degrees to 60 degrees in opposite directions.
6. A stirring unit for a water-based paint mixer according to claim 4, characterized in that: The dispersion assembly (2) comprises a second drive motor (21) arranged on the top of the reactor (3), and a transmission shaft (22) and a dispersion disc (23) arranged inside the reactor (3), wherein the transmission shaft (22) is connected to the output end of the second drive motor (21), and the dispersion disc (23) is sleeved on the transmission shaft (22).
7. A stirring unit for a water-based paint mixer according to claim 6, characterized in that: Two dispersion discs (23) are provided, and the two dispersion discs (23) are provided in two layers, one above the other.
8. A stirring unit for a water-based paint mixer according to claim 6, characterized in that: The two layers of stirring paddles (131) and the two layers of dispersion disks (23) are staggered in the vertical direction.