Automatic mixing device for water-based paint

Abstract

This utility model discloses an automatic extrusion mixing device for water-based coatings, relating to the field of dispersion and mixing equipment. This device includes a mixing vessel, which has a cylindrical hollow structure and serves as the main container for holding the raw materials of the water-based coatings to be mixed. The mixing vessel is equipped with a top cover, which can be fixed to the top edge of the mixing vessel with bolts. This automatic extrusion mixing device for water-based coatings, by incorporating adjustable-angle crushing teeth, can flexibly adjust the shear force distribution according to the characteristics of the solid materials, significantly improving the dispersion efficiency and mixing quality of different materials, and solving the problem that traditional fixed-angle crushing teeth cannot adapt to the needs of multi-variety production.

Description

Technical Field

[0001] This utility model relates to the field of dispersion and mixing equipment, and in particular to an automatic extrusion and mixing device for water-based coatings. Background Technology

[0002] In the production of water-based coatings, solid and liquid materials need to be mixed and dispersed. During the dispersion and mixing process, the solid materials are mainly crushed by the high-speed rotation of the crushing teeth of the mixing device, so that they are evenly dispersed into the liquid in the reactor. However, since the crushing teeth of the existing technology are all integrated with the dispersion disc, the angle of the crushing teeth is difficult to adjust. Therefore, it is difficult to adjust the shear force distribution according to the characteristics of the solid materials (such as hardness, particle size, and agglomeration strength), and thus cannot meet the crushing and dispersion requirements of multiple varieties. Utility Model Content

[0003] To overcome the shortcomings of existing technologies, the purpose of this utility model is to provide an automatic extrusion mixing device for water-based coatings, which solves the problem that the angle of the crushing teeth in traditional dispersion mixing equipment cannot be adjusted.

[0004] To address the problems in the existing technology, the technical solution of this utility model is as follows:

[0005] An automatic extrusion mixing device for water-based coatings includes a mixing tank. The top of the mixing tank is provided with a top cover, and a crushing shaft is provided in the middle of the top cover. The crushing shaft extends into the mixing tank. A dispersing disc is fixed at the lower end of the crushing shaft. A set of crushing teeth is provided on the outer edge of the top surface and the outer edge of the bottom surface of the dispersing disc. Each set of crushing teeth is rotatably connected to the dispersing disc, and the angle is adjusted by an angle adjustment component installed on the dispersing disc.

[0006] Optionally, a connecting piece is fixed to the side of the pulverizing tooth near the dispersing disk. The end of the connecting piece away from the pulverizing tooth is located on the side of the pulverizing tooth near the pulverizing shaft and is fixed with a rotating shaft. The axis of the rotating shaft is perpendicular to the top and bottom surfaces of the dispersing disk, and the rotating shaft is rotatably connected to the dispersing disk.

[0007] Optionally, the angle adjustment assembly includes drive rings respectively disposed on the top and bottom surfaces of the dispersing disk. The axes of the two drive rings coincide with the axis of the dispersing disk. The drive rings are rotatably connected to the outer wall of the crushing shaft. Multiple drive grooves are evenly spaced on the drive rings. The length direction of the drive grooves coincides with the radial direction of the drive rings. Each drive groove corresponds to a rotating shaft. A flipping strip is fixed on the outer wall of the rotating shaft. The flipping strip is located in the gap between the drive ring and the dispersing disk. A push shaft is fixed at the end of the flipping strip away from the rotating shaft. The end of the push shaft away from the dispersing disk is inserted into the drive groove. The angle of the drive ring is fixed by a positioning assembly.

[0008] Optionally, the diameter of the dispersing disc is larger than the diameter of the drive ring, and a sleeve is fixed at the center of the drive ring. The sleeve and the drive ring are integrally formed. The sleeve is rotatably fitted onto the outer wall of the crushing shaft. The positioning assembly includes multiple bolts that are threaded at equal angles to the side wall of the sleeve through threaded holes. The ends of the bolts abut against the outer wall of the crushing shaft.

[0009] Compared with the prior art, the advantages of this utility model are as follows:

[0010] This invention, by setting adjustable-angle crushing teeth, can flexibly adjust the shear force distribution according to the characteristics of solid materials (such as hardness, particle size, and agglomeration strength), significantly improving the dispersion efficiency and mixing quality of different materials, and solving the problem that traditional fixed-angle crushing teeth cannot adapt to the needs of multi-variety production.

[0011] The angle adjustment structure of this utility model, through the linkage structure of the drive ring, the flip bar and the push shaft, can simultaneously drive all the crushing teeth in each group to adjust their angle synchronously, which is simple and quick to operate and does not require individual adjustment. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0013] Figure 2 This is a schematic diagram showing the positional relationship between the mixing sleeve and the stirring blades of this utility model.

[0014] Figure 3 This is a schematic diagram showing the positional relationship between the drive ring and the sleeve of this utility model.

[0015] Figure 4 This utility model Figure 3 Enlarged view of point A.

[0016] Figure 5 This is a schematic diagram showing the position of the flip bar in this utility model.

[0017] Reference numerals in the attached drawings: 1. Mixing vessel; 2. Top cover; 3. Mixing sleeve; 4. Stirring blade; 5. Crushing shaft; 6. Dispersing disc; 7. Crushing teeth; 8. Connecting plate; 9. Rotating shaft; 10. Drive ring; 11. Sleeve; 12. Drive groove; 13. Push shaft; 14. Tilting bar; 15. Bolt. Detailed Implementation

[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0019] Please see Figures 1 to 5This embodiment provides an automatic extrusion mixing device for water-based coatings, including a mixing vessel 1, which has a cylindrical hollow structure and is the main container for holding the raw materials of the water-based coatings to be mixed. The top of the mixing vessel 1 is equipped with a top cover 2, which can be fixed to the top edge of the mixing vessel 1 by bolts 15 to seal the mixing vessel 1 and prevent the materials from splashing or being contaminated by the outside during the mixing process.

[0020] A mixing sleeve 3 is rotatably connected to the axis of the top cover 2 via a bearing. Stirring blades 4 are fixed at equal angular intervals on the lower outer wall of the mixing sleeve 3. The stirring blades 4 are located inside the mixing vessel 1. During operation, the mixing sleeve 3 is driven to rotate by a power device, which in turn drives the stirring blades 4 to rotate, thus mixing the materials in the mixing vessel 1.

[0021] A crushing shaft 5 is rotatably connected to the inner wall of the mixing sleeve 3 via bearings. A power unit is also connected to the upper end of the crushing shaft 5, which is driven to rotate by another power drive unit. The lower end of the crushing shaft 5 extends vertically into the mixing vessel 1. A horizontally arranged dispersing disc 6 is welded to the lower end of the crushing shaft 5. The dispersing disc 6 is a circular plate structure and serves as the carrier for mounting the crushing teeth 7 and achieving material mixing. When the power drive unit is working, the crushing shaft 5 drives the dispersing disc 6 to rotate at high speed, providing power for material mixing.

[0022] On the outer edges of the top and bottom surfaces of the dispersing disc 6, a set of crushing teeth 7 is evenly distributed. The two sets of crushing teeth 7 have the same number of teeth, thus achieving crushing and mixing of materials in both vertical and horizontal directions, improving mixing efficiency. A connecting piece 8 is welded and fixed to the side of each crushing tooth 7 closest to the dispersing disc 6. The end of the connecting piece 8 away from the crushing tooth 7 extends towards the crushing shaft 5, and a rotating shaft 9 is fixed to its end. The axis of the rotating shaft 9 is perpendicular to the top and bottom surfaces of the dispersing disc 6, and the end furthest from the connecting piece 8 is rotatably connected to the dispersing disc 6 via a bearing, allowing the crushing teeth 7 to rotate relative to the dispersing disc 6 around the axis of the rotating shaft 9, providing a structural basis for angle adjustment.

[0023] A drive ring 10 is provided on the top and bottom surfaces of the dispersing disk 6. The drive ring 10 is circular, and the diameter of the dispersing disk 6 is larger than the diameter of the drive ring 10. The axis of the drive ring 10 coincides with the axis of the dispersing disk 6. A sleeve 11 is provided at the center of the drive ring 10. The sleeve 11 is integrally set with the drive ring 10 and rotates around the outer wall of the crushing shaft 5, so that the drive ring 10 can rotate flexibly around the axis of the crushing shaft 5. Multiple drive grooves 12 are evenly spaced on the outer circumference of the drive ring 10. The number of grooves is the same as that of each set of crushing teeth 7, and the length direction coincides with the radial direction of the drive ring 10. A push shaft 13 is inserted into each drive groove 12. One end of the push shaft 13 is vertically fixed on the rotating bar 14. The rotating bar 14 is strip-shaped, and the other end is welded to the outer wall of the rotating shaft 9 and is located in the gap between the drive ring 10 and the dispersing disk 6.

[0024] When the drive ring 10 is rotated, the drive groove 12 drives the rotating bar 14 to rotate via the push shaft 13. The rotating bar 14 then drives the rotating shaft 9 and the crushing teeth 7 to rotate around the axis of the rotating shaft 9, thereby adjusting the angle of the crushing teeth 7. This linkage structure allows all the crushing teeth 7 in each group to adjust their angles synchronously, making operation simple and eliminating the need for individual adjustments, thus greatly improving adjustment efficiency.

[0025] Three bolts 15 are threaded at equal angles through threaded holes on the side wall of the sleeve 11. After the angle of the crushing tooth 7 is adjusted properly, the bolts 15 are tightened, and their ends will abut against the outer wall of the crushing shaft 5, fixing the sleeve 11 and the crushing shaft 5 relative to each other, thereby fixing the angle of the drive ring 10 and the crushing tooth 7, ensuring that the angle of the crushing tooth 7 is stable during the crushing process, and ensuring the crushing effect.

[0026] Working principle: When the angle of the crushing teeth 7 needs to be adjusted according to the characteristics of different solid materials, first loosen the bolt 15, rotate the drive ring 10, and through the linkage of the drive groove 12, the push shaft 13 and the tilting bar 14, drive the crushing teeth 7 to rotate to adjust the angle. After adjustment, tighten the bolt 15 to fix it, start the power unit, and the crushing shaft 5 drives the dispersion disc 6 and the crushing teeth 7 to rotate at high speed, crushing and mixing the materials, so that the solid materials are evenly dispersed into the liquid, significantly improving the dispersion efficiency and mixing quality of different materials, and meeting the needs of multi-variety production.

[0027] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An automatic mixing device for water-based paint, comprising a mixing kettle (1), a top cover (2) is arranged on the top of the mixing kettle (1), a pulverizing shaft (5) is arranged in the middle of the top cover (2), and the pulverizing shaft (5) extends into the mixing kettle (1), characterized in that, The lower end of the crushing shaft (5) is fixed with a dispersing disk (6). The outer edge of the top surface and the outer edge of the bottom surface of the dispersing disk (6) are each provided with a set of crushing teeth (7). Each set of crushing teeth (7) is rotatably connected to the dispersing disk (6) and the angle is adjusted by the angle adjustment component installed on the dispersing disk (6).

2. The automatic extrusion mixing device for water-based coatings according to claim 1, characterized in that, A connecting piece (8) is fixed on the side of the crushing tooth (7) near the dispersing disk (6). The end of the connecting piece (8) away from the crushing tooth (7) is located on the side of the crushing tooth (7) near the crushing shaft (5) and is fixed with a rotating shaft (9). The axis of the rotating shaft (9) is perpendicular to the top and bottom surfaces of the dispersing disk (6). The rotating shaft (9) is rotatably connected to the dispersing disk (6).

3. The automatic extrusion mixing device for water-based coatings according to claim 2, characterized in that, The angle adjustment assembly includes drive rings (10) respectively set on the top and bottom surfaces of the dispersion disk (6). The axes of the two drive rings (10) coincide with the axis of the dispersion disk (6). The drive rings (10) are rotatably connected to the outer wall of the crushing shaft (5). Multiple drive grooves (12) are provided at equal angles on the drive rings (10). The length direction of the drive grooves (12) coincides with the radial direction of the drive rings (10). Each drive groove (12) corresponds to a rotating shaft (9). A flipping strip (14) is fixed on the outer wall of the rotating shaft (9). The flipping strip (14) is located in the gap between the drive ring (10) and the dispersion disk (6). A push shaft (13) is fixed at one end of the flipping strip (14) away from the rotating shaft (9). The end of the push shaft (13) away from the dispersion disk (6) is inserted into the drive groove (12). The angle of the drive rings (10) is fixed by the positioning assembly.

4. The automatic extrusion mixing device for water-based coatings according to claim 3, characterized in that, The diameter of the dispersion disk (6) is larger than the diameter of the drive ring (10).

5. The automatic extrusion mixing device for water-based coatings according to claim 3, characterized in that, A sleeve (11) is fixed at the center of the drive ring (10), and the sleeve (11) is rotatably sleeved on the outer wall of the crushing shaft (5).

6. The automatic extrusion mixing device for water-based coatings according to claim 5, characterized in that, The positioning assembly includes a plurality of bolts (15) threaded at equal angular intervals to the side wall of the sleeve (11) through threaded holes, with the ends of the bolts (15) abutting against the outer wall of the crushing shaft (5).

7. The automatic extrusion mixing device for water-based coatings according to claim 5, characterized in that, The sleeve (11) and the drive ring (10) are integrally formed.

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