A continuous powder coating mixing machine

Abstract

This utility model relates to the field of mixing machine technology and discloses a continuous powder coating mixing machine, including a machine body with a mixing chamber inside the machine body. A shaft is provided on the machine body, passing through the mixing chamber and rotatably connected to the machine body via a connector. The shaft is formed by connecting at least two sets of short shafts end-to-end, and a mixing assembly is provided between the two sets of short shafts. Each set of short shafts is provided with a spiral blade, and the pitch of the spiral blade decreases from one end of the shaft to the other. This application adopts an integrated multi-segment structure to form an asymmetrical mixing machine structure. The pitch is adjusted progressively from the feed end to the discharge end, thereby increasing the shear force in accordance with the discharge direction, which is beneficial for the dispersion and refinement of powder coatings, enhances the disturbance during mixing, and reduces the situation of insufficient local mixing.

Description

Technical Field

[0001] This utility model relates to the field of mixing machine technology, specifically to a continuous powder coating mixing machine. Background Technology

[0002] In the powder coating production industry, mixing equipment is a core component, and its performance directly determines the quality and production efficiency of the powder coating. Traditional powder coating mixing methods are mainly divided into batch mixing equipment and two-step processes.

[0003] Intermittent mixing equipment, such as high-speed mixers, internal mixers, or twin-screw extruders, operates on a batch production model. This production method is inefficient and cannot meet the demands of large-scale production. Because it is difficult to ensure that the production conditions for each batch are absolutely consistent, the product quality fluctuates significantly between batches, seriously affecting the consistency and stability of powder coating products and making it difficult to guarantee the continuous production of high-quality powder coatings.

[0004] The two-step process first premixes the dry powder raw materials using a high-speed mixer, and then melt-mixes them using an extruder. However, this process has several drawbacks. On the one hand, the entire production process is relatively cumbersome, requiring multiple machines to work together, which increases equipment investment costs and production management difficulty. On the other hand, during the premixing stage, the mixing of dry powder raw materials easily generates a large amount of dust, which not only seriously pollutes the production environment but also leads to material loss, increases production costs, and poses a threat to the health of operators.

[0005] In addition to the two traditional methods mentioned above, existing technologies use screws or blades for mixing. However, due to the gap between the blade tip and the inside of the machine body, this can easily lead to insufficient mixing of local powders, affecting the uniformity of mixing and hindering the even distribution of powders. Furthermore, there are shortcomings in shear force control, which can also lead to insufficient mixing of materials and affect product quality. Utility Model Content

[0006] The purpose of this invention is to provide a continuous powder coating mixing machine to solve the technical problem of insufficient local powder mixing in existing mixing machines.

[0007] To solve the above-mentioned technical problems, this utility model specifically provides the following technical solution:

[0008] A continuous powder coating mixing machine includes a machine body, a mixing chamber is provided in the machine body, a shaft is provided on the machine body, the shaft passes through the mixing chamber and is rotatably connected to the machine body through a connector, the shaft is formed by connecting at least two sets of short shafts end to end, and a mixing component is provided between the two sets of short shafts;

[0009] Each of the short shafts is provided with a spiral blade, and the pitch of the spiral blade decreases from one end of the shaft to the other.

[0010] As a preferred embodiment of the present invention, the chaotic component includes a fixed shaft installed between the two sets of short shafts, and a disturbance plate is provided on the outer wall of the fixed shaft, the disturbance plate being eccentrically arranged about the fixed shaft as the axis.

[0011] As a preferred embodiment of this utility model, a shearing blade is provided on one side of the cavity wall of the mixing chamber on the machine body, and the shearing blade is staggered between the pitches of the spiral blades.

[0012] In a preferred embodiment of this invention, the thickness of the shear blade decreases from one end of the shaft to the other, thereby enhancing the axial and radial bidirectional shearing force of the spiral blade.

[0013] As a preferred embodiment of this utility model, the machine body is provided with a feed pipe and a discharge pipe at both ends, and a mixing pipe is provided at one end of the machine body. The machine body is connected to two sets of feed hoppers through the mixing pipe.

[0014] The mixing tube is provided with a spiral guide plate, one end of which extends to the inner wall of the feed tube. A rotating shaft is provided at both the feed end and the discharge end of the mixing tube. A blade is movably provided on the outer wall of the rotating shaft through a connector.

[0015] Compared with the prior art, this utility model has the following advantages:

[0016] This utility model adopts an integrated multi-segment structure to form an asymmetrical mixer. The pitch is adjusted in a progressive manner from the feed end to the discharge end, thereby improving the shear force in line with the discharge direction, which is beneficial to the dispersion and refinement of powder coatings, enhances the disturbance during mixing, and reduces the situation of insufficient local mixing. Attached Figure Description

[0017] To more clearly illustrate the embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings in the following description are merely exemplary, and those skilled in the art can derive other embodiments based on the provided drawings without creative effort.

[0018] Figure 1 A schematic diagram of the overall front section structure is provided for the embodiments of this utility model;

[0019] Figure 2 A cross-sectional view of the fuselage is provided for embodiments of this utility model;

[0020] Figure 3 A side sectional view of the fuselage is provided for embodiments of this utility model;

[0021] Figure 4 A top-sectional view of the mixing tube is provided for an embodiment of this utility model.

[0022] The labels in the diagram represent the following:

[0023] 10-Fuse; 20-Shaft; 30-Chaos Component;

[0024] 11-Mixing chamber; 12-Shearing blade; 13-Feed pipe; 14-Discharge pipe; 15-Mixing pipe; 16-Feed hopper; 151-Spiral guide plate; 152-Rotating shaft; 153-Blade;

[0025] 21-Short shaft; 22-Helical blade;

[0026] 31-Fixed shaft; 32-Disturbance plate. Detailed Implementation

[0027] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0028] like Figure 1 and Figure 2 As shown, this utility model provides a continuous powder coating mixing machine, including a machine body 10, a mixing chamber 11 is provided in the machine body 10, a shaft 20 is provided on the machine body 10, the shaft 20 passes through the mixing chamber 11 and is rotatably connected to the machine body 10 through a connector, the shaft 20 is formed by connecting at least two sets of short shafts 21 end to end, and a mixing component 30 is provided between the two sets of short shafts 21;

[0029] Each short shaft 21 is provided with a spiral blade 22, and the pitch of the spiral blade 22 decreases from one end of the shaft 20 to the other end.

[0030] This utility model adopts an integrated multi-segment structure to form an asymmetrical mixer. The pitch is adjusted in a progressive manner from the feed end to the discharge end, thereby improving the shear force in line with the discharge direction, which is beneficial to the dispersion and refinement of powder coatings, enhances the disturbance during mixing, and reduces the situation of insufficient local mixing.

[0031] The powder coating is pushed and tumbled in the mixing chamber 11 by the spiral blade 22. As the screw pitch decreases, the moving speed of the powder coating gradually changes, which helps to enhance the collision and mixing between powders, thereby obtaining a good mixing effect.

[0032] like Figure 2 As shown, the chaotic component 30 includes a fixed shaft 31 installed between two sets of short shafts 21, and a disturbance piece 32 is provided on the outer wall of the fixed shaft 31. The disturbance piece 32 is eccentrically arranged with the fixed shaft 31 as the axis.

[0033] The eccentric setting of the disturbance plate 32 will disrupt the original flow state of the powder coating, producing a chaotic mixing effect, making the powder coating more uniform and helping to reduce the situation of insufficient local mixing.

[0034] like Figure 2 and Figure 3 As shown, a shearing blade 12 is provided on one side of the cavity wall of the mixing chamber 11 on the machine body 10, and the shearing blade 12 is staggered between the pitch of the spiral blade 22.

[0035] The shaft 20 is controlled to rotate by an external drive mechanism, such as a motor or other drive device. When the shaft 20 rotates, the spiral blade 22 and the shear blade 12 cooperate to generate bidirectional shearing force on the powder coating in both the axial and radial directions.

[0036] like Figure 2 As shown, the thickness of the shear blade 12 decreases from one end of the shaft 20 to the other end, which enhances the axial and radial bidirectional shearing force of the spiral blade 22.

[0037] The thickness of the shear plate 12 decreases from one end of the shaft 20 to the other, which further enhances the bidirectional shear force, which is beneficial to the dispersion and refinement of the powder coating and improves the mixing quality.

[0038] like Figure 1 and Figure 4 As shown, the machine body 10 is provided with a feed pipe 13 and a discharge pipe 14 at both ends, and a mixing pipe 15 is provided at one end of the machine body 10. The machine body 10 is connected to two sets of feed hoppers 16 through the mixing pipe 15.

[0039] The mixing tube 15 is provided with a spiral guide plate 151, one end of which extends to the inner wall of the feed tube 13. A rotating shaft 152 is provided at both the feed end of the mixing tube 15 and the discharge end of the feed tube 13. A blade 153 is movably provided on the outer wall of the rotating shaft 152 through a connector.

[0040] The powder is fed into the mixing tube 15 through two feed hoppers 16. The powder falls onto the blades 153, which drive the blades 153 to rotate through the rotating shaft 152. This helps to increase the friction and dispersion of the powder and increases the chance of mixing the two powders during the falling process.

[0041] The powder then falls through the spiral guide plate 151 to buffer the falling, which helps to adjust the speed at which the powder falls into the body 10 and also helps to collect the two powders together and fall into the body 10.

[0042] When the powder falls into the machine body 10 after it has gathered, it passes through the blades 153 in the feed pipe 13 again for further dispersion. This increases the friction of the powder falling into the machine body 10, which helps to further disperse the powder and thus facilitates better mixing.

[0043] It facilitates continuous feeding of powder coatings, and during the feeding process, the spiral guide plate 151 and blade 153 premix the powder coatings from different sources before they enter the mixing chamber 11 for further mixing, thereby improving the efficiency and continuity of the entire mixing process.

[0044] The above embodiments are merely exemplary embodiments of this application and are not intended to limit this application. The scope of protection of this application is defined by the claims. Those skilled in the art can make various modifications or equivalent substitutions to this application within its substance and scope of protection, and such modifications or equivalent substitutions should also be considered to fall within the scope of protection of this application.

Claims

1. A continuous powder coating mixing machine, characterized in that, Includes a body (10), a mixing chamber (11) is provided inside the body (10), a shaft (20) is provided on the body (10), the shaft (20) passes through the mixing chamber (11) and is rotatably connected to the body (10) through a connector, the shaft (20) is formed by connecting at least two sets of short shafts (21) end to end, and a chaos assembly (30) is provided between the two sets of short shafts (21). Each of the short shafts (21) is provided with a spiral blade (22), and the pitch of the spiral blade (22) decreases from one end of the shaft (20) to the other end.

2. The continuous powder coating mixing machine according to claim 1, characterized in that, The chaotic component (30) includes a fixed shaft (31) installed between two sets of short shafts (21), and a disturbance plate (32) is provided on the outer wall of the fixed shaft (31), the disturbance plate (32) being eccentrically arranged with the fixed shaft (31) as the axis.

3. A continuous powder coating mixing machine according to claim 1, characterized in that, A shearing blade (12) is provided on one side of the cavity wall of the mixing chamber (11) on the machine body (10), and the shearing blade (12) is staggered between the pitches of the spiral blade (22).

4. A continuous powder coating mixing machine according to claim 3, characterized in that, The thickness of the shear blade (12) decreases from one end of the shaft (20) to the other end, thereby enhancing the axial and radial bidirectional shearing force of the spiral blade (22).

5. A continuous powder coating mixing machine according to claim 1, characterized in that, The machine body (10) is provided with a feed pipe (13) and a discharge pipe (14) at both ends, and a mixing pipe (15) is provided at one end of the machine body (10). The machine body (10) is connected to two sets of feed hoppers (16) through the mixing pipe (15). A spiral guide plate (151) is provided inside the mixing tube (15), one end of which extends to the inner wall of the feed tube (13). A rotating shaft (152) is provided at both the feed end of the mixing tube (15) and the discharge end of the feed tube (13). A blade (153) is movably provided on the outer wall of the rotating shaft (152) through a connector.

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