A hot spray powder anti-sticking mixing device
By designing the inclined scraper and mesh barrel structure inside the tank, the problems of uneven powder mixing and adhesion were solved, achieving uniform dispersion and efficient mixing of powder, and improving the dispersion effect and cleaning ability of the mixing device.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SUZHOU LANSON ELECTRICAL & MECHANICAL CO LTD
- Filing Date
- 2025-08-11
- Publication Date
- 2026-07-07
AI Technical Summary
Existing mixing devices suffer from uneven mixing, powder adhesion, and cleaning dead zones during powder material mixing. This is especially true in the mixing of metal and ceramic powders, where existing devices struggle to effectively address powder residue and adhesion caused by electrostatic adsorption, humidity effects, and mechanical extrusion.
An anti-sticking mixing device was designed, comprising a tank, a cover, a shaft, a rod, and a scraper. The inclined scraper fits tightly against the inner wall of the tank, and the combination of the mesh barrel and the scraper achieves uniform dispersion and mixing of powder. The motor drives the shaft to move the scraper, eliminating cleaning dead corners and reducing powder residue.
It effectively eliminates cleaning dead corners, enhances the mixing effect, reduces the residual accumulation of powder on the inner wall of the tank, improves the dispersibility and mixing uniformity of the powder, and improves the quality of the mixture.
Smart Images
Figure CN224462609U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of mixing devices, and in particular to a thermal spray powder anti-sticking mixing device. Background Technology
[0002] In thermal spraying technology, the uniformity of powder material mixing directly affects the coating quality. Powders such as metals and ceramics are prone to sticking during mixing due to electrostatic adsorption, humidity, and mechanical extrusion, leading to uneven mixing and residue buildup on the inner wall of the tank. Existing mixing devices mostly use straight-plate or simple paddle-type stirring structures, which are difficult to adapt to the curved inner wall of the tank, easily creating cleaning dead zones, and have limited dispersion effects, failing to effectively solve the powder sticking problem. Therefore, it is necessary to design an anti-sticking mixing device that can conform to the inner wall of the tank, enhance dispersion, and reduce powder residue. Utility Model Content
[0003] The purpose of this invention is to address the shortcomings of existing technologies by proposing a thermal spraying powder anti-sticking mixing device.
[0004] To achieve the above objectives, the present invention adopts the following technical solution:
[0005] A thermal spraying powder anti-sticking mixing device includes a tank body, a cover at the top of the tank body, a shaft rotatably connected to the cover, a plurality of rods fixedly connected to the shaft, some of the rods being fixedly connected to the same plate, a plurality of first scrapers being fixedly connected at equal intervals at one end of the plate, the plurality of first scrapers being inclined, the plurality of first scrapers contacting and fitting with the inner wall of the tank, the remaining rods being fixedly connected to the same second scraper, the second scraper fitting with and contacting the conical area at the bottom of the tank, the second scraper having beveled surfaces at one end and the other end, a mesh barrel being provided inside the cover, and a third scraper being provided inside the mesh barrel.
[0006] Preferably, the inner wall of the cover is fixedly connected to the mesh barrel, the mesh barrel is rotatably connected to the shaft, the mesh barrel has mesh holes processed at one end and the other end, the shaft is fixedly connected to the third scraper, and the third scraper contacts and is adapted to the inner wall of the mesh barrel.
[0007] Preferably, the cover is fixedly connected to a feed inlet, which is located above the mesh barrel.
[0008] Preferably, the cover and the can are fixedly connected, and a rubber pad is fixedly connected at the contact point between the cover and the can.
[0009] Preferably, a motor is fixedly connected to the cover, and the output end of the motor is fixedly connected to the shaft.
[0010] Preferably, the tank body is fixedly connected to a discharge port.
[0011] Preferably, the first scraper, the second scraper, and the third scraper are all made of polytetrafluoroethylene.
[0012] The beneficial effects of this utility model are as follows:
[0013] 1. Through the cooperation between the first scraper, rod, and shaft, in the powder mixing process of thermal spraying technology, when the shaft rotates, it can drive the rod and plate, thereby driving multiple first scrapers to move. Since the multiple first scrapers are all inclined plates and equally spaced vertically, and are adapted to the inner wall of the tank, they can closely fit the arc-shaped inner wall of the tank during movement, effectively eliminating the cleaning dead corners that are easily generated by traditional straight plate or simple paddle-type stirring structures, and reducing the residual accumulation of metal, ceramic, and other powders on the inner wall of the tank due to electrostatic adsorption, humidity, and mechanical extrusion; moreover, the inclined plate design can produce a better dispersion effect on the adhered powder during movement, enhancing the mixing effect and solving the problem of limited dispersion effect and difficulty in dealing with uneven mixing caused by powder adhesion in existing mixing devices;
[0014] 2. Through the coordination between the shaft, the third scraper, the screen barrel, and the mesh, when the shaft rotates and drives the third scraper to move inside the screen barrel, the movement of the third scraper inside the screen barrel, which is responsible for receiving the material falling from the feed inlet, can promptly agitate and disperse the material that has just fallen, preventing the material from accumulating and clumping inside the screen barrel. At the same time, the structure of the screen barrel allows the material to be distributed more evenly when it is acted upon by the scraper, reducing the phenomenon of local material agglomeration. This provides more dispersed and uniform raw materials for subsequent mixing processes, which helps to improve the overall mixing quality and also reduces the problem of uneven mixing caused by poor initial material conditions. Attached Figure Description
[0015] Figure 1 This is a schematic diagram of the structure of a thermal spraying powder anti-sticking mixing device proposed in this utility model;
[0016] Figure 2 for Figure 1 A schematic diagram of the cross-sectional structure;
[0017] Figure 3 for Figure 2 Structural diagram of the central axis, rod, and plate;
[0018] Figure 4 for Figure 2 A schematic diagram of the structure of the first scraper, the mesh barrel, and the mesh openings;
[0019] Figure 5 for Figure 2 A schematic diagram of the structure of the central mesh barrel, mesh openings, and third scraper.
[0020] In the diagram: 1. Tank body; 2. Cover body; 3. Shaft body; 4. Rod body; 5. Plate body; 6. First scraper; 7. Second scraper; 8. Mesh tank; 9. Mesh holes; 10. Third scraper; 11. Motor; 12. Feed inlet; 13. Discharge outlet; 14. Rubber pad. Detailed Implementation
[0021] 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.
[0022] Example 1, referring to Figures 1 to 5 A thermal spraying powder anti-sticking mixing device includes a tank body 1, with a cover 2 at the top of the tank body 1. After the cover 2 is separated from the tank body 1, a mesh barrel 8, a shaft 3, a first scraper 6, a second scraper 7 rod 4, a plate 5, and a third scraper 10 can be removed from the tank body 1. The cover 2 is rotatably connected to the shaft 3, and the shaft 3 is fixedly connected to multiple rods 4. Some rods 4 are fixedly connected to the same plate 5. Multiple first scrapers 6 are fixedly connected at equal intervals at one end of the plate 5, serving as the carrier for the first scrapers 6. All the first scrapers 6 are designed to be inclined. The tilting not only enhances the ability to push the powder but also improves the dispersion effect. Multiple first scrapers 6 are in contact with and adapted to the inner wall of the tank 1, achieving cleaning and covering of the inner wall of the tank 1. The remaining rods 4 are fixedly connected to the same second scraper 7. The second scraper 7 is adapted to and in contact with the conical area at the bottom of the tank 1, achieving cleaning and covering of the inner wall of the tank 1. Both ends of the second scraper 7 are machined with bevels, which can effectively reduce the accumulation of powder at the end of the third scraper 10. A mesh barrel 8 is provided inside the cover 2, and the third scraper 10 is provided inside the mesh barrel 8.
[0023] In this embodiment, the inner wall of the cover 2 is fixedly connected to the mesh barrel 8, so that the rotation of the shaft 3 will not cause the mesh barrel 8 to rotate synchronously. The mesh barrel 8 and the shaft 3 are rotatably connected through each other. The mesh barrel 8 has mesh holes 9 processed at one end and the other end, which play a preliminary screening role. The shaft 3 is fixedly connected to the third scraper 10. The third scraper 10 contacts and fits the inner wall of the mesh barrel 8. The third scraper 10 can push and stir the material in the mesh barrel 8 as the shaft 3 rotates. The cover 2 is fixedly connected to the feed inlet 12. The feed inlet 12 is located above the mesh barrel 8 to ensure that the material put in from the feed inlet 12 can fall accurately into the inside of the mesh barrel 8 and avoid material leakage. The cover 2 is fixedly connected to the tank 1. A rubber gasket 14 is fixedly connected at the contact point between the cover 2 and the tank 1. The gasket 14 fills the connection gap through its own elastic deformation. This effectively enhances the overall sealing of the device, preventing powder leakage from gaps during mixing. The cover 2 is fixedly connected to a motor 11, the model of which is selected according to actual working requirements. The output end of the motor 11 is fixedly connected to the shaft 3. The tank 1 is fixedly connected to a discharge port 13, on which a valve is installed. The opening and closing of the discharge port can be controlled by the valve, allowing for flexible control of the powder discharge timing according to the mixing progress. The first scraper 6, the second scraper 7, and the third scraper 10 are all made of polytetrafluoroethylene (PTFE). This material has extremely low surface energy, which can effectively prevent powder from adsorbing onto the scraper surface due to static electricity or stickiness. It also has good wear resistance and corrosion resistance, making it suitable for mixing environments of various powders such as metals and ceramics, thus extending the service life of the scrapers.
[0024] The working principle of this embodiment is as follows: In use, firstly, the motor 11 is connected to an external power supply and control device. This drives the shaft 3 to move the rod 4, plate 5, first scraper 6, second scraper 7, and third scraper 10. After operation, the material falls from the feed inlet 12 and is collected by the mesh bucket 8. At this time, the shaft 3 rotates, on the one hand driving the third scraper 10 to move within the mesh bucket 8, promptly agitating and dispersing the newly fallen material. The mesh holes 9 of the mesh bucket 8 help distribute the material more evenly, preventing accumulation and clumping, and providing dispersed and uniform raw materials for subsequent mixing processes. On the other hand, the rotation of the shaft 3 simultaneously... The rod 4 and plate 5 are driven together, which in turn drives multiple first scrapers 6 and second scrapers 7 to move. Since these first scrapers 6 are all inclined plates and are equidistantly distributed, and the first scrapers 6 and second scrapers 7 are adapted to the inner wall of the tank 1, they can closely fit the arc-shaped inner wall of the tank 1 during movement. This effectively eliminates the cleaning dead corners that are easily generated by traditional straight plate or simple paddle-type stirring structures, and reduces the residual accumulation of metal, ceramic and other powders on the inner wall of the tank 1 due to electrostatic adsorption, humidity and mechanical extrusion. At the same time, the inclined plate design of the first scraper 6 produces a better dispersion effect on the adhered powder during movement, enhancing the mixing effect.
[0025] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.
Claims
1. A thermal spray powder anti-sticking mixing device, comprising a tank (1), characterized in that, The top of the tank (1) is provided with a cover (2), the cover (2) is rotatably connected to a shaft (3), the shaft (3) is fixedly connected to multiple rods (4), some of the rods (4) are fixedly connected to the same plate (5), one end of the plate (5) is fixedly connected to multiple first scrapers (6) at equal intervals, the multiple first scrapers (6) are all inclined, the multiple first scrapers (6) are in contact with and adapted to the inner wall of the tank (1), the remaining rods (4) are fixedly connected to the same second scraper (7), the second scraper (7) is adapted to and in contact with the conical area at the bottom of the tank (1), one end and the other end of the second scraper (7) are both processed with bevels, the cover (2) is provided with a mesh barrel (8), the mesh barrel (8) is provided with a third scraper (10).
2. The thermal spraying powder anti-sticking mixing device according to claim 1, characterized in that, The inner wall of the cover (2) is fixedly connected to the mesh barrel (8), the mesh barrel (8) is rotatably connected to the shaft (3), the mesh barrel (8) has mesh holes (9) processed at one end and the other end, the shaft (3) is fixedly connected to the third scraper (10), and the third scraper (10) is in contact with and adapted to the inner wall of the mesh barrel (8).
3. The thermal spraying powder anti-sticking mixing device according to claim 1, characterized in that, The cover (2) is fixedly connected to the feed inlet (12), which is located above the mesh barrel (8).
4. The thermal spraying powder anti-sticking mixing device according to claim 1, characterized in that, The cover (2) and the tank (1) are fixedly connected, and a rubber pad (14) is fixedly connected at the contact point between the cover (2) and the tank (1).
5. The thermal spraying powder anti-sticking mixing device according to claim 1, characterized in that, The cover (2) is fixedly connected to a motor (11), and the output end of the motor (11) is fixedly connected to the shaft (3).
6. The thermal spraying powder anti-sticking mixing device according to claim 1, characterized in that, The tank (1) is fixedly connected to a discharge port (13).
7. The thermal spraying powder anti-sticking mixing device according to claim 1, characterized in that, The first scraper (6), the second scraper (7) and the third scraper (10) are all made of polytetrafluoroethylene.