Air forming hood for a spinning cup atomizer

Abstract

The utility model relates to air forming cover technical field discloses a kind of air forming covers for rotary cup atomizer, including air forming cover body, the side of air forming cover body is provided with air flow deflector body, by being provided sealing ring at the thread joint component of air forming cover body and air flow deflector body, effective sealing can be formed to the connecting place of both, block gas leakage path, ensure the air tightness of air flow when rotary cup atomizer works, avoid the problem that air flow is disorderly, atomization effect drops due to sealing failure;Thread joint component connection mode cooperates the design of three integrally disassembled, without separately disassembling air forming cover body, air flow deflector body and sealing ring when routine maintenance and disassembly, greatly reduce the number of parts that need to be disassembled, reduce the complexity and workload of maintenance operation, shorten maintenance time.

Description

Technical Field

[0001] This utility model relates to the field of air-forming hood technology, and in particular to an air-forming hood for a rotary cup atomizer. Background Technology

[0002] High-speed electrostatic rotary cup coating is widely used in various coating industries due to its extremely high transfer efficiency. During the spraying process, a large amount of paint mist is generated. Most of this mist adheres to the workpiece under the influence of the forming air and electric field, but a small portion adheres to the rotary cup itself, causing contamination. If the rotary cup is not cleaned promptly, it can lead to problems such as clogging of the forming hood orifices, damage to the turbine motor, and abnormal electrostatic high voltage. Therefore, regular cleaning and maintenance of the rotary cup are necessary. However, the rotary cup is a precision product involving numerous seals, mating parts, and vulnerable components, making disassembly and assembly difficult and requiring a high level of technical skill from the operators.

[0003] In existing technologies, the connection structure presents significant inconveniences in maintenance and disassembly. Since the air-forming cover, air guide cover, and seals are mostly designed for independent disassembly, routine maintenance requires disassembling each component one by one. This not only increases the number of components to be disassembled but also increases the complexity of maintenance operations. Workers need to spend more time separating the components. Furthermore, during repeated disassembly, the seals are prone to wear and deformation due to stress and friction, requiring frequent replacement to ensure the subsequent sealing effect. This not only increases the maintenance workload and time cost but also raises the procurement cost of consumables such as seals. Utility Model Content

[0004] The purpose of this invention is to solve the problems existing in the prior art by proposing an air-forming cover for a rotary cup atomizer.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: An air-forming cover for a rotary cup atomizer includes an air-forming cover body, an air-guiding cover body on one side of the air-forming cover body, and the air-forming cover body ring and the air-guiding cover body are connected by a threaded screw assembly. A sealing ring is also provided between the air-forming cover body and the air-guiding cover body. The sealing ring is located at the threaded screw assembly of the air-forming cover body ring and the air-guiding cover body, and is used to seal the connection. It does not require disassembly during routine maintenance and disassembly. The air-forming cover body, the air-guiding cover body, and the sealing ring are disassembled and maintained as a whole, which effectively reduces the number of parts that need to be disassembled during maintenance.

[0006] Preferably, the threaded connection assembly includes a threaded hole in the air-forming shroud body, and a screw is provided on one side of the air-guiding shroud body, the screw being movable through the air-guiding shroud body and threadedly connected to the threaded hole.

[0007] Preferably, the air-forming hood body is integrally formed from metal material, and an annular groove is provided on one side of the air-forming hood body, the annular groove being connected to the inner cavity of the air-guiding hood body.

[0008] Preferably, a first air passage communicating with an annular groove is provided in the side wall of the air forming hood body, and a plurality of second air passages are provided on the other side of the air forming hood body, wherein the first air passage is connected to the plurality of second air passages.

[0009] Preferably, a plurality of second air channels are evenly arranged in a circumferential direction along the outer edge of the end face of the air forming hood body, and the axis of each second air channel forms an angle with the end face of the air forming hood body, the angle being between 30° and 70°.

[0010] Preferably, the outer periphery of the air-forming hood body is provided with several wrench-like points.

[0011] Compared with the prior art, the beneficial effects of this utility model are: This invention, by setting a sealing ring at the threaded connection assembly between the air-forming hood body and the air-guiding hood body, effectively seals the connection point, blocks gas leakage paths, ensures the airtightness of the airflow during the operation of the rotary cup atomizer, and avoids problems such as airflow turbulence and reduced atomization effect due to seal failure. The threaded connection assembly, combined with the design for disassembly of the three components as a single unit, eliminates the need to separately disassemble the air-forming hood body, air-guiding hood body, and sealing ring during routine maintenance and disassembly. This significantly reduces the number of parts that need to be disassembled, lowers the complexity and workload of maintenance operations, and shortens maintenance time. At the same time, it avoids the wear and tear on components caused by frequent disassembly. Since the sealing ring does not need to be disassembled during maintenance, it reduces wear and deformation caused by repeated disassembly, extends the service life of the sealing ring, and basically eliminates the need for frequent replacement, thus reducing the cost of purchasing and replacing sealing ring consumables. Attached Figure Description

[0012] Figure 1 This is an overall schematic diagram of an air-forming shroud for a rotary cup atomizer proposed in this utility model; Figure 2 This utility model proposes an air-forming shroud for a rotary cup atomizer. Figure 1 Enlarged view at point A; Figure 3 This is a schematic diagram of the second air channel distribution of the air forming hood body of an air forming hood for a rotary cup atomizer proposed in this utility model. Figure 4 This utility model proposes an air-forming shroud for a rotary cup atomizer. Figure 3 Enlarged view at point B; Figure 5 This is a side view of the air-forming cover body of an air-forming cover for a rotary cup atomizer proposed in this utility model; Figure 6 This is a schematic diagram showing the airflow direction after the rotating main body of this utility model is installed.

[0013] In the diagram: 1. Air-forming hood body; 2. Air guide hood body; 3. Sealing ring; 4. Threaded hole; 5. Screw; 6. Annular groove; 7. First air passage; 8. Second air passage; 9. Turbo cup head; 10. Wrench application point. Detailed Implementation

[0014] 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.

[0015] Reference Figures 1-5 An air-forming cover for a rotary cup atomizer includes an air-forming cover body 1, an air guide cover body 2 on one side of the air-forming cover body 1, the air-forming cover body 1 and the air guide cover body 2 being connected by a threaded connection assembly, and a sealing ring 3 being provided between the air-forming cover body 1 and the air guide cover body 2. The sealing ring 3 is located at the threaded connection assembly between the air-forming cover body 1 and the air guide cover body 2, and is used to seal the connection. During routine maintenance and disassembly, disassembly is not required. The air-forming cover body 1, the air guide cover body 2 and the sealing ring 3 are disassembled and maintained as a single component, effectively reducing the number of parts that need to be disassembled during maintenance.

[0016] When in use, this device uses a sealing ring 3 at the threaded connection between the air-forming hood body 1 and the air-guiding hood body 2 to effectively seal the connection, blocking gas leakage paths and ensuring the airtightness of the airflow during the operation of the rotary cup atomizer. This prevents airflow turbulence and reduced atomization effect caused by seal failure. The threaded connection method, combined with the design for disassembly of the three components as a single unit, eliminates the need to separately disassemble the air-forming hood body 1, the air-guiding hood body 2, and the sealing ring 3 during routine maintenance and disassembly. This significantly reduces the number of parts that need to be disassembled, lowers the complexity and workload of maintenance operations, and shortens maintenance time. It also avoids wear and tear on components caused by frequent disassembly. Since the sealing ring 3 does not need to be disassembled during maintenance, it reduces wear and deformation caused by repeated disassembly, extends the service life of the sealing ring 3, and basically eliminates the need for frequent replacement, thus reducing the cost of purchasing and replacing the sealing ring 3.

[0017] In the example of this application, the threaded connection assembly includes a threaded hole 4 opened in the air forming shroud body 1, and a screw 5 is provided on one side of the air guiding shroud body 2. The screw 5 moves through the air guiding shroud body 2 and is threadedly connected to the threaded hole 4.

[0018] As a preferred example of this utility model, the screw 5 is designed to pass through the air guide shroud body 2 and then be precisely threaded into the threaded hole 4, forming a firm and detachable connection. This prevents the air forming shroud body 1 and the air guide shroud body 2 from loosening due to vibration and airflow impact during equipment operation, thus ensuring the overall structural stability.

[0019] In the example of this application, the air-forming hood body 1 is integrally formed from metal material, and an annular groove 6 is provided on one side of the air-forming hood body 1, which communicates with the inner cavity of the air guide hood body 2.

[0020] As a preferred example of this utility model, the air-forming cover body 1 is made of metal material (e.g., aluminum alloy) in one piece. On the one hand, the metal material ensures that the body is a completely connected conductor with good current conduction capability; on the other hand, the one-piece molding structure avoids the conductive breaks that may exist in the spliced ​​structure, ensuring the continuity of conductivity, while improving the overall structural strength of the body and making it less prone to deformation or breakage due to external force or long-term use.

[0021] In the example of this application, a first air channel 7 communicating with an annular groove 6 is provided in the side wall of the air forming hood body 1, and a plurality of second air channels 8 are provided on the other side of the air forming hood body 1, and the first air channel 7 is connected to the plurality of second air channels 8.

[0022] As a preferred example of this utility model, the design of connecting the first air channel 7 with several second air channels 8 forms a concentrated air intake and dispersed airflow path. After the external airflow enters the annular groove 6, it can first be evenly distributed through the first air channel 7, and then simultaneously enter each of the second air channels 8. This avoids the flow congestion caused by excessive concentration of airflow in a single channel, ensuring that the airflow passes through the air forming hood body 1 quickly and smoothly, thus improving the airflow transmission efficiency. The first air channel 7 can buffer and divert the incoming airflow, ensuring that the pressure and flow rate of the airflow are consistent before entering each of the second air channels 8, and then flow out directionally through the second air channels 8. This further ensures the uniformity of airflow distribution in the circumferential direction, providing a stable airflow foundation for the subsequent core processes such as atomization and spraying of the rotary cup atomizer, and avoiding problems such as forming defects and uneven coating thickness caused by uneven airflow.

[0023] In the example of this application, a plurality of second air channels 8 are evenly arranged in a circumferential direction along the outer edge of the end face of the air forming cover body 1, and the axis of each second air channel 8 forms an angle with the end face of the air forming cover body 1, the degree of the angle being between 30° and 70°.

[0024] As a preferred example of this utility model, several second air channels 8 are evenly arranged along the outer circumference of the end face of the air forming cover body 1. With the design of a 30°-70° angle, it can not only ensure the consistency of the direction of the airflow from each second air channel 8, but also precisely control the outflow angle of the airflow by adjusting the angle, adapting to the airflow direction requirements of different specifications of rotary cup heads 9, and flexibly adjusting the position and angle of the airflow acting on the cup head; the evenly arranged second air channels 8 and the reasonable angle range can make the airflow form a stable and regular airflow pattern (such as single-blade hyperboloid airflow) after passing through the second air channels 8, avoiding airflow turbulence caused by messy channel layout or improper angle, and ensuring that the airflow pattern meets the atomization efficiency of the rotary cup atomizer.

[0025] In the example of this application, the position of the rotating cup head 9 is as follows: Figure 1 As shown, the centerline of the air-forming cover body 1 coincides with the centerline of the rotating cup head 9.

[0026] The rotating cup head 9 and the air forming hood body 1 can be connected by threaded fastening or flange docking. The connection method between the rotating cup head 9 and the air forming hood body 1 is existing technology and will not be described in detail here.

[0027] As a preferred example of this utility model, the centerline of the air-forming hood body 1 coincides with the centerline of the rotary cup head 9, ensuring that the airflow from the second air channel 8 can accurately act on the central area of ​​the rotary cup head 9, avoiding the problem of airflow being biased to one side of the cup head due to axial offset, resulting in local airflow being too strong or insufficient, and ensuring the uniform effect of airflow on the atomization process of the cup head; the axial overlap design allows the relative position of the air-forming hood body 1 and the rotary cup head 9 to remain accurate, reducing equipment vibration and noise caused by positional deviation, while ensuring that the atomized medium (such as paint) can move along the preset trajectory, avoiding problems such as spraying deviation and medium waste, and improving the working accuracy and product qualification rate of the rotary cup atomizer.

[0028] In the example of this application, a plurality of wrench points 10 are provided on the outer periphery of the air-forming hood body 1.

[0029] As a preferred example of this utility model, several wrench application points 10 are provided on the outer periphery of the air forming hood body 1, providing clear and stable force points for disassembling the air forming hood body 1 during maintenance. Workers can directly use the wrench to apply force at the application points without having to find additional force points or use other auxiliary tools, reducing the difficulty of disassembly operations and avoiding problems such as disassembly difficulties and wear on the outer wall of the body due to the lack of application points.

[0030] 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. An air-forming hood for a rotary cup atomizer, comprising an air-forming hood body (1), characterized in that: An air guide body (2) is provided on one side of the air forming hood body (1). The air forming hood body (1) ring and the air guide body (2) are connected by a threaded screw assembly. A sealing ring (3) is also provided between the air forming hood body (1) and the air guide body (2). The sealing ring (3) is at the threaded screw assembly of the air forming hood body (1) ring and the air guide body (2) and is used to seal the connection.

2. The air-forming shroud for a rotary cup atomizer according to claim 1, characterized in that: The threaded connection assembly includes a threaded hole (4) in the air-forming hood body (1), and a screw (5) is provided on one side of the air-guiding hood body (2). The screw (5) moves through the air-guiding hood body (2) and is threadedly connected to the threaded hole (4).

3. The air-forming shroud for a rotary cup atomizer according to claim 1, characterized in that: The air-forming hood body (1) is integrally formed from metal material, and an annular groove (6) is provided on one side of the air-forming hood body (1), which is connected to the inner cavity of the air guide hood body (2).

4. The air-forming shroud for a rotary cup atomizer according to claim 2, characterized in that: The air-forming hood body (1) has a first air passage (7) that communicates with the annular groove (6) in the inner side wall, and a number of second air passages (8) are provided on the other side of the air-forming hood body (1). The first air passage (7) is connected to the number of second air passages (8).

5. An air-forming shroud for a rotary cup atomizer according to claim 4, characterized in that: Several second air channels (8) are evenly arranged in a circumferential direction along the outer edge of the end face of the air forming hood body (1), and the axis of each second air channel (8) forms an angle with the end face of the air forming hood body (1), the angle being between 30° and 70°.

6. An air-forming shroud for a rotary cup atomizer according to claim 1, characterized in that: The outer periphery of the air-forming hood body (1) is provided with several wrench points (10).

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