Multifunctional powder rotary cup spray gun with powder optimization path
By designing a 90° elbow powder conveying pipe and a conductive mechanism, the problems of high powder conveying resistance and clogging in powder coating equipment are solved, achieving a highly efficient and uniform powder coating effect, which is suitable for the automotive, home appliance and building materials industries.
Patent Information
- Application Number
- CN202520102697.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-16
- Publication Date
- 2026-01-09
- Estimated Expiration
- 2035-01-16
AI Technical Summary
In existing powder coating equipment, the traditional elbow design increases the resistance of the powder conveying path, and the powder tends to accumulate at the turning point. Long-term use can easily cause pipeline blockage and affect the coating quality.
It adopts a 90° elbow powder conveying pipe design, combined with a conductive mechanism, to provide electrostatic spraying power. The inner wall of the elbow is smooth and has a large radius of curvature, which reduces powder deposition. Atomization is achieved through high-pressure gas, making it suitable for spraying irregularly shaped workpieces.
It improves powder coating efficiency, reduces conveying resistance and clogging risk, ensures stable electrostatic field, and enhances powder adhesion, making it suitable for various coating applications.
Smart Images
Figure CN223775083U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of powder coating equipment technology, and in particular to a multifunctional powder rotary cup spray gun with powder optimization path. Background Technology
[0002] Existing powder coating equipment typically uses a straight conveying pipe design for its powder conveying system. However, in complex and irregularly shaped coating processes, the powder conveying path often needs to make multiple turns. Traditional elbow designs have the following problems: an unreasonable elbow design can increase the resistance of the powder conveying path, affecting the coating quality; powder tends to accumulate at turning points, which can easily cause pipe blockage, especially after long-term use. Utility Model Content
[0003] In view of this, in order to solve the problems existing in the technical background, this utility model proposes a multi-functional powder rotary cup spray gun with optimized powder delivery path and improved spraying efficiency. The specific technical solution is as follows:
[0004] A multifunctional powder rotary cup spray gun with optimized powder path includes a spray gun connector, an elbow powder delivery pipe, a conductive mechanism, and a nozzle. The elbow powder delivery pipe is a 90° elbow, and its two ends are connected to the spray gun holder and the air motor holder respectively by a first fixing screw and a second fixing screw. The air motor holder is connected to a motor powder delivery pipe, and one end of the motor powder delivery pipe is connected to the spray cup.
[0005] The conductive mechanism includes a conductive connecting spring, a conductive wire, and a conductive ring. The conductive ring is in contact with the conductive connecting spring, and the conductive connecting spring is connected to the conductive wire. The conductive ring and the conductive spring cooperate to provide the power required for electrostatic spraying through the conductive wire.
[0006] Furthermore, the elbow powder conveying pipe is provided with an outer shell.
[0007] Furthermore, a rotating air pipe is connected to the side wall of the motor powder conveying pipe, and the motor powder conveying pipe is located inside the air motor.
[0008] Furthermore, the inner wall of the elbow powder conveying pipe is smooth, reducing the adhesion and deposition of powder at the elbow. The elbow powder conveying pipe adopts a 90° large curvature radius design, which increases the turning radius of the powder flow channel, reduces the conveying resistance, and eliminates the need for large swinging of the spray gun angle for irregularly shaped workpieces.
[0009] The above technical solution has the following beneficial effects:
[0010] This utility model's elbow-shaped powder conveying pipe features a 90° elbow design, resulting in a shorter powder path and reduced conveying losses compared to a straight conveying pipe. The elbow-shaped powder conveying pipe is detachably connected to the spray gun holder and the air motor holder via a first and a second fixing screw, facilitating disassembly and replacement. The elbow-shaped powder conveying pipe used in the spray gun of this invention is suitable for various powder coating equipment, such as automotive coating, home appliance spraying, and building material coating. Attached Figure Description
[0011] Figure 1 This is a schematic diagram of the structure of a multifunctional powder rotary cup spray gun with powder optimization path according to the present invention.
[0012] Figure 2 This is a schematic diagram of the changing state structure of a multifunctional powder rotary cup spray gun with powder optimization path according to the present invention.
[0013] In the diagram: 1-Spray gun holder; 2-Outer shell; 3-Elbowed powder conveying pipe; 4-Air motor holder; 5-Conductive connecting spring; 6-Conductive wire; 7-Conductive ring; 8-Powder channel; 9-First fixing screw; 10-Second fixing screw; 11-Air motor; 12-Motor powder conveying pipe; 13-Speed air pipe; 14-Spray cup. 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. 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.
[0015] See Figure 1 and Figure 2 The invention relates to a multifunctional powder rotary cup spray gun with optimized powder path, comprising a spray gun connector, a bent powder conveying pipe 3, a conductive mechanism, and a nozzle. The bent powder conveying pipe 3 is a 90° bent powder conveying pipe. The two ends of the bent powder conveying pipe 3 are respectively connected to the spray gun base 1 and the air motor base 4 via a first fixing screw 9 and a second fixing screw 10. The air motor base 4 is connected to a motor powder conveying pipe 12, and one end of the motor powder conveying pipe 12 is connected to a spray cup 14. The invention has a compact and reasonable structure.
[0016] The conductive mechanism includes a conductive connecting spring 5, a conductive wire 6, and a conductive ring 7. The conductive ring 7 is in contact with the conductive connecting spring 5, and the conductive connecting spring 5 is connected to the conductive wire 6. The conductive ring 7 cooperates with the conductive spring to provide the power required for electrostatic spraying through the conductive wire 6.
[0017] In this embodiment, the elbow powder conveying pipe 3 is externally equipped with a housing 2, and the motor powder conveying pipe 12 is connected to a rotating air pipe 13 on its side wall. The air motor 11 has a motor powder conveying pipe 12 inside. The inner wall of the elbow powder conveying pipe 3 is smooth, reducing powder adhesion and deposition at the elbow. The elbow powder conveying pipe 3 adopts a 90° large curvature radius design, increasing the turning radius of the powder flow channel and reducing conveying resistance. Irregularly shaped workpieces do not require significant swaying of the spray gun angle. By improving the elbow inner wall structure and fluid design of the elbow powder conveying pipe 3, the smoothness of powder conveying is improved, and the risk of deposition and blockage is reduced.
[0018] In this embodiment, the elbow powder conveying pipe 3 is made of high-strength wear-resistant material, which can withstand high-speed airflow and powder friction.
[0019] See Figure 1 and Figure 2 As shown, powder enters through powder channel 8 and is guided to spray cup 14 via elbow powder conveying pipe 3. Efficient and uniform spraying is achieved under the action of motor powder conveying pipe 12. The elbow design shortens the powder path, reducing conveying losses. Air enters spray cup 14 from air motor 11 via rotating air pipe 13, achieving atomization through high-pressure gas. Conductive ring 7, in conjunction with conductive connecting spring 5, provides the power required for electrostatic spraying via conductive wire 6, ensuring a stable electrostatic field and improving powder adhesion.
[0020] The spray cup 14 of this utility model is a replaceable design, which makes it easy to adapt to different spraying needs.
[0021] This utility model's elbow powder conveying pipe 3 adopts a 90° elbow design, which shortens the powder path and reduces conveying losses compared to a straight conveying pipe. The elbow powder conveying pipe 3 is detachably connected to the spray gun base 1 and the air motor base 4 via a first fixing screw 9 and a second fixing screw 10, facilitating disassembly and replacement. The elbow powder conveying pipe used in the spray gun of this invention is suitable for various powder coating equipment, such as automotive coating, home appliance spraying, and building material coating.
[0022] The basic principles and main features of this utility model have been described above. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are only illustrative of the principles of this utility model. Various changes and modifications may be made to this utility model without departing from the spirit and scope of this utility model. All such changes and modifications fall within the scope of protection of this utility model as defined by the appended claims and their equivalents.
Claims
1. A multifunctional powder rotary cup spray gun with optimized powder path, characterized in that, The system includes a spray gun connector, a bent powder conveying pipe (3), a conductive mechanism, and a nozzle. The bent powder conveying pipe (3) is a 90° bent powder conveying pipe. Both ends of the bent powder conveying pipe (3) are connected to the spray gun holder (1) and the air motor (11) holder (4) respectively by a first fixing screw (9) and a second fixing screw (10). The air motor (11) holder (4) is connected to a motor powder conveying pipe (12), and one end of the motor powder conveying pipe (12) is connected to a spray cup (14). The conductive mechanism includes a conductive connecting spring (5), a conductive wire (6), and a conductive ring (7). The conductive ring (7) is in contact with the conductive connecting spring (5), and the conductive connecting spring (5) is connected to the conductive wire (6). The conductive ring (7) cooperates with the conductive spring to provide the power required for electrostatic spraying through the conductive wire (6).
2. The multifunctional powder rotary cup spray gun with powder optimization path according to claim 1, characterized in that, The elbow powder conveying pipe (3) is provided with an outer shell (2).
3. A multifunctional powder rotary cup spray gun with powder optimization path according to claim 1, characterized in that, The motor powder conveying pipe (12) is connected to a rotating air pipe (13) on its side wall, and the air motor (11) is equipped with a motor powder conveying pipe (12).
4. A multifunctional powder rotary cup spray gun with powder optimization path according to claim 1, characterized in that, The inner wall of the elbow powder conveying pipe (3) is smooth, which reduces the adhesion and deposition of powder at the elbow. The elbow powder conveying pipe (3) adopts a large curvature radius design of 90°.