A stirring device for dye mixing

Abstract

The utility model provides a kind of stirring device for dye mixing, including driving device, stirring shaft subassembly, annular static grid, annular dynamic grid, spiral stirring subassembly, vane subassembly and annular mounting structure;The top of stirring shaft subassembly is equipped with driving sleeve, vane subassembly is set in the bottom of stirring shaft subassembly, the output end of driving device is detachably connected with driving sleeve, spiral stirring subassembly is set on stirring shaft subassembly, and spiral stirring subassembly is located between driving sleeve and vane subassembly.The stirring device for dye mixing of the utility model solves the problem that the stirring blade in the related art disperses powder dye, the dispersed powder dye is affected by colloid thickener, there is insufficient shear force, which leads to incomplete dispersion and agglomeration.

Description

Technical Field

[0001] This utility model belongs to the field of dye mixing technology, and in particular relates to a stirring device for dye mixing. Background Technology

[0002] Dye mixing, also known as color matching or blending, refers to the process of mixing two or more different colored dyes or paints in a specific ratio to create new colors or adjust existing colors. The core principles of this process include additive color mixing, such as the superposition of red, green, and blue light, and subtractive color mixing, such as the mixing of the absorption spectra of the three primary colors of magenta, yellow, and cyan. Dye mixing primarily follows the principle of subtractive color mixing, meaning that after mixing, the dye's absorption spectrum expands, reflected light decreases, and ultimately a composite color is presented.

[0003] In the dyeing process, thickeners (such as carboxymethyl cellulose and xanthan gum) are added to the powder dye system as key auxiliaries. Their core function is to form a highly viscoelastic network by absorbing water and swelling through molecular chains, thereby regulating the rheological properties of the dye liquor. This not only prevents pigment sedimentation and stratification caused by density differences, but also provides an anti-permeability support layer for processes such as printing. The two form a viscosity-color stability synergistic system.

[0004] Thickeners exhibit instantaneous strong adhesion through hydration. When powdered dyes come into contact with them, undispersed dye particles are rapidly encapsulated to form a "hard core-gel shell" structure. This structure, due to the high viscoelasticity of the gel network, creates a shear barrier, making it difficult for the dye particles to release and dissolve, thus hindering the molecular-level dispersion of the dye solution. Furthermore, in related technologies, the stirring blades, when dispersing powdered dyes, experience insufficient shear force due to the influence of the colloidal thickener, leading to incomplete dispersion and clumping. Summary of the Invention

[0005] In view of this, the present invention aims to at least partially solve one of the related technical problems.

[0006] To achieve the above objectives, the technical solution of this utility model is implemented as follows:

[0007] A stirring device for dye mixing includes a drive unit, a stirring shaft assembly, an annular static grid, an annular dynamic grid, a spiral stirring assembly, a blade assembly, and an annular mounting structure.

[0008] The top of the stirring shaft assembly is provided with a drive sleeve, the blade assembly is disposed at the bottom of the stirring shaft assembly, the output end of the drive device is detachably connected to the drive sleeve, and the spiral stirring assembly is disposed on the stirring shaft assembly, the spiral stirring assembly being located between the drive sleeve and the blade assembly.

[0009] The top of the annular dynamic grid is detachably connected to the stirring shaft assembly via a connecting component;

[0010] The annular static grid is fitted over the annular dynamic grid, the annular mounting structure is detachable from the inner wall of the mixing tank, and the top of the annular static grid is detachably connected to the annular mounting structure.

[0011] Furthermore, the annular mounting structure includes an annular mounting plate, a guide plate, and a fixing plate. The annular mounting plate is connected to the inner wall of the mixing tank by multiple fixing bolts. The guide plate is disposed at the bottom of the annular mounting plate, and the fixing plate is disposed at the bottom of the guide plate. The fixing plate can be detachably connected to the annular static grid.

[0012] Furthermore, the top of the annular static grille is provided with a fixed bend, which is connected to the fixing plate by screws.

[0013] Furthermore, the connecting assembly includes a drive plate and a fixing sleeve. The outer edge of the drive plate is fixedly connected to the top of the annular dynamic grid, and the fixing sleeve is disposed in the middle of the drive plate. The fixing sleeve is detachably connected to the stirring shaft assembly.

[0014] Furthermore, the stirring shaft assembly includes a drive shaft and a rotating shaft. The drive shaft and the rotating shaft are aligned and combined through a U-shaped or fork-shaped opening groove. The connection position of the drive shaft and the rotating shaft is fixed by two pins. The two pins are connected to a fixed sleeve. A drive sleeve is provided on the top of the drive shaft. The blade assembly and the spiral stirring assembly are both arranged on the rotating shaft.

[0015] Furthermore, the blade assembly includes a stalk mounting shaft and multiple stirring blades. The stalk mounting shaft is located at the bottom of the rotating shaft, and the multiple stirring blades are evenly arranged circumferentially on the stalk mounting shaft. Each stirring blade has a serrated structure on its outer edge.

[0016] Furthermore, the spiral stirring assembly includes multiple spiral blades, which are evenly arranged on the rotating shaft.

[0017] Furthermore, the gap between the inner wall of the annular static grid and the outer edge of the annular dynamic grid is 0.2-0.5 mm.

[0018] Compared with the prior art, the stirring device for dye mixing described in this utility model has the following advantages:

[0019] 1. The static grid is bolted to the tank wall via an annular mounting plate, directional flow guides via baffles, and is rigidly connected to a fixing plate, forming a stable support structure. This forces the fluid to flow directionally along the grid openings, eliminating dead zones for adhesion to the tank wall and ensuring that dye micro-clusters concentrate in the high-shear region. The static grid achieves rapid positioning by being screwed to the fixing plate via a fixed curved edge at the top, and its inner wall maintains a constant micro-gap with the dynamic grid. This structure creates a continuous compression-expansion zone, enhancing the mechanical stripping effect on colloidal agglomerates.

[0020] 2. The dynamic grid, through a rigid connection between the drive plate and the fixed sleeve, transmits the torque of the stirring shaft to the annular grid without loss. During rotation, the grid teeth form a continuous cutting trajectory, actively tearing the viscoelastic network of the thickener. As the dynamic grid rotates with the shaft, it generates alternating pressure pulsations, inducing the fluid inside the tank to form a vertical vortex circulation, forcing the settled powder back into the high-shear zone, thus solving the bottom accumulation problem.

[0021] 3. The spiral stirring assembly uses a continuous spiral surface to force axial circulation of the fluid, eliminating the concentration gradient between the upper and lower layers of the tank; the strong radial turbulence generated at the bottom by the blade assembly breaks up local agglomerates. Together, they achieve full-scale coverage from macroscopic circulation to microscopic shearing. The spiral blades concentrate energy into directional transport kinetic energy, reducing ineffective eddy current loss in the fluid; the serrated blades at the bottom focus kinetic energy on agglomerate breakup, forming a "transport-breakup" energy transfer chain, significantly improving mechanical energy conversion efficiency. Attached Figure Description

[0022] The accompanying drawings, which form part of this utility model, are used to provide a further understanding of the utility model. The illustrative embodiments of the utility model and their descriptions are used to explain the utility model and do not constitute an undue limitation of the utility model. In the drawings:

[0023] Figure 1 This is a schematic diagram of a stirring device for dye mixing according to an embodiment of the present invention;

[0024] Figure 2 This is a schematic diagram of the ring-shaped mounting structure described in an embodiment of the present utility model;

[0025] Figure 3 This is a schematic diagram of the annular static grille structure described in an embodiment of the present utility model;

[0026] Figure 4 This is a schematic diagram of the annular dynamic grid structure described in an embodiment of the present utility model;

[0027] Figure 5 This is a schematic diagram of the spiral stirring blade structure described in an embodiment of the present invention.

[0028] Explanation of reference numerals in the attached figures:

[0029] 100. Annular mounting structure; 110. Annular mounting plate; 120. Guide plate; 130. Threaded hole; 200. Annular static grid; 210. Fixed bend; 300. Annular dynamic grid; 310. Fixed sleeve; 400. Stirring shaft assembly; 410. Drive sleeve; 420. Blade mounting shaft; 500. Spiral stirring assembly; 600. Blade assembly. Detailed Implementation

[0030] It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments of the present invention can be combined with each other.

[0031] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, features defined with "first," "second," etc., may explicitly or implicitly include one or more of that feature. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0032] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0033] The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0034] A stirring device for dye mixing, such as Figure 1As shown, it includes a drive device, a stirring shaft assembly 400, an annular static grid 200, an annular dynamic grid 300, a spiral stirring assembly 500, a blade assembly 600, and an annular mounting structure 100; the top of the stirring shaft assembly 400 is provided with a drive sleeve 410, the blade assembly 600 is provided at the bottom of the stirring shaft assembly 400, the output end of the drive device is detachably connected to the drive sleeve 410, and the spiral stirring assembly 500 is provided on the stirring shaft assembly 400, and the spiral stirring assembly 500 is located between the drive sleeve 410 and the blade assembly 600;

[0035] The top of the annular dynamic bar grid 300 is detachably connected to the stirring shaft assembly 400 via a connecting component; the annular static bar grid 200 is fitted over the annular dynamic bar grid 300, and the annular mounting structure 100 is detachably connected to the inner wall of the mixing tank. The top of the annular static bar grid 200 is detachably connected to the annular mounting structure 100. The gap between the inner wall of the annular static bar grid 200 and the outer edge of the annular dynamic bar grid 300 is 0.2-0.5 mm.

[0036] The annular mounting structure 100 includes an annular mounting plate 110, a guide plate 120, and a fixing plate. The annular mounting plate 110 is connected to the inner wall of the mixing tank by multiple fixing bolts. The guide plate 120 is located at the bottom of the annular mounting plate 110, and the fixing plate is located at the bottom of the guide plate 120. The fixing plate can be detachably connected to the annular static grid 200. The top of the annular static grid 200 has a fixed bend 210, which is connected to the fixing plate by screws, with the screws located in threaded holes 130. The static grid forms a stable support structure through the bolts fixing the annular mounting plate 110 to the tank wall, the directional flow guidance of the guide plate 120, and the rigid connection of the fixing plate. This forces the fluid to flow directionally along the grid holes, eliminating dead corners of adhesion to the tank wall and ensuring that dye micro-clusters concentrate in the high-shear region. The static grid achieves rapid positioning through the screw connection between the top fixed bend 210 and the fixing plate, and its inner wall maintains a constant micro-gap with the dynamic grid. This structure forms a continuous compression-expansion action zone, enhancing the mechanical stripping effect on colloidal agglomerates.

[0037] The dynamic grid, through a rigid connection assembly between the drive plate and the fixed sleeve 310, transmits the torque of the stirring shaft to the annular grid without loss. During rotation, the grid teeth form a continuous cutting trajectory, actively tearing apart the viscoelastic network of the gel thickener. As the dynamic grid rotates with the shaft, it generates alternating pressure pulsations, inducing the fluid inside the tank to form a vertical vortex circulation, forcing the settled powder back into the high-shear zone, thus solving the bottom accumulation problem.

[0038] The connecting assembly includes a drive plate and a fixing sleeve 310. The outer edge of the drive plate is fixedly connected to the top of the annular dynamic grid 300, and the fixing sleeve 310 is located in the middle of the drive plate. The fixing sleeve 310 is detachably connected to the stirring shaft assembly 400.

[0039] The stirring shaft assembly 400 includes a drive shaft and a rotating shaft. The drive shaft and the rotating shaft are aligned and combined through a U-shaped or fork-shaped opening groove. The connection between the drive shaft and the rotating shaft is fixed by two pins. The two pins are connected to the fixing sleeve 310. A drive sleeve 410 is provided on the top of the drive shaft. The blade assembly 600 and the spiral stirring assembly 500 are both provided on the rotating shaft.

[0040] The blade assembly 600 includes a shank mounting shaft 420 and multiple stirring blades. The shank mounting shaft 420 is located at the bottom of the rotating shaft, and the multiple stirring blades are evenly arranged circumferentially on the shank mounting shaft 420. Each stirring blade has a serrated structure on its outer edge. The spiral stirring assembly 500 includes multiple spiral blades, which are evenly arranged on the rotating shaft. The spiral stirring assembly 500 uses a continuous spiral curved surface to drive the fluid to form a forced axial circulation, eliminating the concentration gradient between the upper and lower layers of the tank. The strong radial turbulence generated at the bottom by the blade assembly 600 breaks up local agglomerates. The two work together to achieve full-scale coverage from macroscopic circulation to microscopic shearing. The spiral blades concentrate energy into directional transport kinetic energy, reducing ineffective eddy current loss in the fluid; the bottom serrated blades focus kinetic energy on agglomerate breakup, forming a "transport-breakup" energy transfer chain, significantly improving mechanical energy conversion efficiency.

[0041] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A stirring device for mixing dyes, characterized in that: It includes a drive unit, a stirring shaft assembly (400), an annular static grid (200), an annular dynamic grid (300), a spiral stirring assembly (500), a blade assembly (600), and an annular mounting structure (100); The top of the stirring shaft assembly (400) is provided with a drive sleeve (410), the blade assembly (600) is disposed at the bottom of the stirring shaft assembly (400), the output end of the drive device is detachably connected to the drive sleeve (410), the spiral stirring assembly (500) is disposed on the stirring shaft assembly (400), and the spiral stirring assembly (500) is located between the drive sleeve (410) and the blade assembly (600); The top of the annular dynamic grid (300) is detachably connected to the stirring shaft assembly (400) via a connecting component; The annular static grid (200) is sleeved on the outside of the annular dynamic grid (300), the annular mounting structure (100) is detachable from the inner wall of the mixing tank, and the top of the annular static grid (200) is detachably connected to the annular mounting structure (100).

2. The stirring device for dye mixing according to claim 1, characterized in that: The annular mounting structure (100) includes an annular mounting plate (110), a guide plate (120), and a fixing plate. The annular mounting plate (110) is connected to the inner wall of the mixing tank by multiple fixing bolts. The guide plate (120) is provided at the bottom of the annular mounting plate (110), and the fixing plate is provided at the bottom of the guide plate (120). The fixing plate can be detachably connected to the annular static grid (200).

3. The stirring device for dye mixing according to claim 2, characterized in that: The top of the annular static grid (200) is provided with a fixed bend (210), and the fixed bend (210) is connected to the fixing plate by screws.

4. A stirring device for dye mixing according to any one of claims 1-3, characterized in that: The connecting assembly includes a drive plate and a fixing sleeve (310). The outer edge of the drive plate is fixedly connected to the top of the annular dynamic grid (300). The fixing sleeve (310) is disposed in the middle of the drive plate. The fixing sleeve (310) is detachably connected to the stirring shaft assembly (400).

5. A stirring device for dye mixing according to claim 4, characterized in that: The stirring shaft assembly (400) includes a drive shaft and a rotating shaft. The drive shaft and the rotating shaft are aligned and combined through a U-shaped or fork-shaped opening groove. The connection position of the drive shaft and the rotating shaft is fixed by two pins. The two pins are connected to a fixing sleeve (310). A drive sleeve (410) is provided on the top of the drive shaft. The blade assembly (600) and the spiral stirring assembly (500) are both arranged on the rotating shaft.

6. A stirring device for dye mixing according to claim 5, characterized in that: The blade assembly (600) includes a blade holder mounting shaft (420) and a plurality of stirring blades. The blade holder mounting shaft (420) is located at the bottom of the rotating shaft. The plurality of stirring blades are evenly arranged on the blade holder mounting shaft (420) around the circumference. Each stirring blade has a serrated structure on its outer edge.

7. A stirring device for dye mixing according to claim 5, characterized in that: The spiral stirring assembly (500) includes multiple spiral blades, which are evenly arranged on the rotating shaft.

8. A stirring device for dye mixing according to claim 5, characterized in that: The gap between the inner wall of the annular static grid (200) and the outer edge of the annular dynamic grid (300) is 0.2-0.5mm.

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