Spray head device for plastic spraying

Abstract

The utility model discloses a spray head device for plastic spraying, which comprises a spray pipe, a stirring mechanism is arranged in the spray pipe, an atomizing spray head is mounted at the left end of the spray pipe, a controller is mounted on the upper surface of the spray pipe, an operation button is mounted on the upper surface of the controller, and a diffusion pore plate is arranged in the spray pipe. The outer surface of the spray pipe is fixedly communicated with two fixed pipes, the top ends of the two fixed pipes are both provided with air pump valves, the bottom end of the spray pipe is fixedly communicated with a blow-off pipe, the bottom end of the blow-off pipe is provided with a blow-off valve, the stirring mechanism comprises a motor, the motor is installed on the upper surface of the spray pipe, the upper surface of the spray pipe is provided with a through hole, and the through hole is communicated with the blow-off pipe. And a rotating shaft is mounted at the output end of the motor. According to the plastic spraying device, the rotating shaft can be driven to rotate through the motor, plastic spraying materials can be stirred through cooperation of the rotating shaft and the stirring curved bar, blockage during plastic spraying is prevented, and the materials can be properly heated through the heating rod.

Description

Technical Field

[0001] This utility model relates to the field of powder coating nozzles, and in particular to a powder coating nozzle device. Background Technology

[0002] Powder coating is a process in which plastic powder is charged using a high-voltage electrostatic device. Under the influence of an electric field, the coating is sprayed onto the surface of the workpiece. The powder is evenly adsorbed onto the workpiece surface, forming a powdery coating. After being baked at high temperature, the powdery coating flows and solidifies, and the plastic particles melt into a dense final protective coating with varying effects, firmly adhering to the workpiece surface. Powder-coated products are mostly used for indoor enclosures, and the paint film has a flat or matte finish. Powder coating powders mainly include acrylic powder and polyester powder.

[0003] Powder coating is a surface treatment method that involves spraying plastic powder onto parts. Its advantages include no need for thinner, no environmental pollution during application, no toxicity to humans, excellent coating appearance quality, strong adhesion and mechanical strength, short curing time, significantly higher corrosion and wear resistance, no need for primer, simple application, low skill requirements for workers, and lower cost than spray painting. However, current powder coating nozzle devices are relatively simple, and some high-viscosity coatings are prone to clogging during powder coating, resulting in uneven coating and affecting the quality of the workpiece. Therefore, we propose a powder coating nozzle device to solve these problems. Utility Model Content

[0004] The purpose of this invention is to provide a spray nozzle device for powder coating to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A spray nozzle device for powder coating includes a spray pipe with a stirring mechanism inside. An atomizing nozzle is installed at the left end of the spray pipe. A controller is installed on the upper surface of the spray pipe, and an operation button is installed on the upper surface of the controller. A diffuser plate is provided inside the spray pipe. Two fixed pipes are fixedly connected to the outer surface of the spray pipe. An air pump valve is provided at the top end of each of the two fixed pipes. A drain pipe is fixedly connected to the bottom end of the spray pipe, and a drain valve is provided at the bottom end of the drain pipe.

[0007] In a further embodiment, the stirring mechanism includes a motor mounted on the upper surface of the nozzle, the upper surface of the nozzle having a through hole, the output end of the motor having a rotating shaft mounted on it, and the inner top wall of the nozzle having a first sealing gasket mounted on it.

[0008] In a further embodiment, the outer surface of the rotating shaft is equipped with stirring cranks arranged at equal intervals, and the outer surface of the rotating shaft is equipped with heating rods arranged at equal intervals.

[0009] In a further embodiment, the motor has a connecting seat on its front side, a connecting piece inside the connecting seat, and symmetrical model stickers are affixed to the outer surface of the nozzle.

[0010] In a further embodiment, the atomizing nozzle includes a connecting pipe, inside which are arranged equidistant telescopic springs, and the left end of the connecting pipe is connected to a powder coating cover, inside which an atomizing orifice plate is installed.

[0011] In a further embodiment, a connecting ring is installed at the right end of the nozzle, the inner wall of the connecting ring is provided with a connecting screw groove, and a second sealing gasket is provided at the right end of the connecting ring.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] This device utilizes a fixed pipe and air pump valve to easily fill the spray nozzle with compressed air, increasing the spraying pressure and ensuring uniform spraying. The drain pipe and drain valve facilitate the cleaning of granular plastic powder and impurities accumulated inside the spray nozzle over time. A motor drives a rotating shaft, which, in conjunction with a stirring crank, agitates the spraying material, preventing blockages during spraying. A heating rod moderately heats the material, preventing adhesion and improving spraying uniformity. A telescopic spring and atomizing plate further enhance the uniformity of material atomization, ensuring consistent spraying quality. Attached Figure Description

[0014] Figure 1 This is a three-dimensional structural diagram of a spray nozzle device for powder coating.

[0015] Figure 2 This is a cross-sectional view of the nozzle in a powder coating spray head device.

[0016] Figure 3 This is a side sectional view of the connecting pipe in the spray nozzle device for powder coating.

[0017] Figure 4 This is a top sectional view of the nozzle in a powder coating spray head device.

[0018] In the diagram: 1. Nozzle; 2. Stirring mechanism; 201. Motor; 202. Through hole; 203. First sealing gasket; 204. Rotating shaft; 205. Stirring crank; 206. Heating rod; 207. Connecting seat; 208. Connecting piece; 3. Atomizing nozzle; 301. Connecting pipe; 302. Powder coating cover; 303. Atomizing orifice plate; 304. Telescopic spring; 4. Diffuser orifice plate; 5. Controller; 6. Operation button; 7. Connecting ring; 8. Connecting screw groove; 9. Second sealing gasket; 10. Model label; 11. Drain pipe; 12. Drain valve; 13. Fixed pipe; 14. Air pump valve. Detailed Implementation

[0019] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientation or positional relationships, are based on the orientation or positional relationships shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, features defined with "first," "second," etc., may explicitly or implicitly include one or more of that feature. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0020] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[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. 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.

[0022] Please see Figure 1-4In this utility model, a spray nozzle device for powder coating includes a spray pipe 1, a stirring mechanism 2 inside the spray pipe 1, an atomizing nozzle 3 installed at the left end of the spray pipe 1, a controller 5 installed on the upper surface of the spray pipe 1, an operation button 6 installed on the upper surface of the controller 5, a diffuser plate 4 inside the spray pipe 1, two fixed pipes 13 fixedly connected to the outer surface of the spray pipe 1, each fixed pipe 13 having an air pump valve 14 at its top, and a drain pipe 11 fixedly connected to the bottom end of the spray pipe 1, with a drain valve 12 at the bottom end of the drain pipe 11. The controller 5 and the operation button 6 facilitate the control of the motor 201. The fixed pipes 13 and the air pump valve 14 facilitate the injection of compressed air into the spray pipe 1, increasing the powder coating pressure and ensuring uniform powder coating. The drain pipe 11 and the drain valve 12 facilitate the cleaning of granular plastic powder and impurities accumulated inside the spray pipe 1 over a long period.

[0023] The stirring mechanism 2 includes a motor 201, which is mounted on the upper surface of the nozzle 1. The upper surface of the nozzle 1 has a through hole 202. A rotating shaft 204 is mounted on the output end of the motor 201. A first sealing gasket 203 is mounted on the inner top wall of the nozzle 1. Equally spaced stirring cranks 205 are mounted on the outer surface of the rotating shaft 204. Equally spaced heating rods 206 are mounted on the outer surface of the rotating shaft 204. A connecting seat 207 is provided on the front of the motor 201. A connecting piece 208 is provided inside the connecting seat 207. Symmetrical model stickers 10 are pasted on the outer surface of the nozzle 1. The motor 201 can drive the rotating shaft 204 to rotate. The cooperation of the rotating shaft 204 and the stirring cranks 205 can stir the powder coating material to prevent clogging during powder coating. The heating rods 206 can moderately heat the material to prevent it from sticking together and improve the uniformity of powder coating. The cooperation of the connecting seat 207 and the connecting piece 208 facilitates the electrical connection of the motor 201.

[0024] The atomizing nozzle 3 includes a connecting pipe 301, inside which are arranged equidistant telescopic springs 304. The left end of the connecting pipe 301 is connected to a powder coating cover 302, inside which is installed an atomizing orifice plate 303. The right end of the nozzle 1 is equipped with a connecting ring 7, the inner wall of the connecting ring 7 is provided with a connecting screw groove 8, and the right end of the connecting ring 7 is provided with a second sealing washer 9. Through the cooperation of the telescopic springs 304 and the atomizing orifice plate 303, the uniformity of material atomization can be increased, and the powder coating quality of the workpiece can be improved. The cooperation of the connecting ring 7 and the connecting screw groove 8 facilitates the connection and installation of the nozzle 1.

[0025] The working principle of this utility model is as follows:

[0026] In use, first connect the device to the corresponding power supply. Then, use the connecting ring 7 and the connecting screw groove 8 to connect and install the spray pipe 1. Next, use the controller 5 and the operation button 6 to easily control the motor 201. Use the fixing pipe 13 and the air pump valve 14 to easily fill the spray pipe 1 with compressed air, increasing the spraying pressure and ensuring uniform spraying. Use the drain pipe 11 and the drain valve 12 to easily clean the granular plastic powder and impurities that have accumulated inside the spray pipe 1 over a long period. Motor 201 drives rotating shaft 204 to rotate. The rotation shaft 204 and stirring crank 205 work together to stir the powder coating material, preventing clogging during powder coating. Heating rod 206 can moderately heat the material to prevent it from sticking together and improve the uniformity of powder coating. Connecting seat 207 and connecting piece 208 facilitate electrical connection of motor 201. The cooperation between telescopic spring 304 and atomizing plate 303 can increase the uniformity of material atomization and improve the powder coating quality of workpiece.

[0027] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0028] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A spray nozzle device for powder coating, characterized in that: The nozzle (1) includes a spray pipe (1), which has a stirring mechanism (2) inside. Atomizing nozzle (3) is installed at the left end of the spray pipe (1). A controller (5) is installed on the upper surface of the spray pipe (1). An operation button (6) is installed on the upper surface of the controller (5). A diffuser plate (4) is installed inside the spray pipe (1). Two fixed pipes (13) are fixedly connected to the outer surface of the spray pipe (1). A pump valve (14) is provided at the top of each of the two fixed pipes (13). A drain pipe (11) is fixedly connected to the bottom end of the spray pipe (1). A drain valve (12) is provided at the bottom end of the drain pipe (11).

2. The spray nozzle device for powder coating according to claim 1, characterized in that: The stirring mechanism (2) includes a motor (201), which is mounted on the upper surface of the nozzle (1). The upper surface of the nozzle (1) has a through hole (202). The output end of the motor (201) is equipped with a rotating shaft (204). The inner top wall of the nozzle (1) is equipped with a first sealing gasket (203).

3. The spray nozzle device for powder coating according to claim 2, characterized in that: The outer surface of the rotating shaft (204) is equipped with stirring rods (205) arranged at equal intervals, and the outer surface of the rotating shaft (204) is equipped with heating rods (206) arranged at equal intervals.

4. A spray nozzle device for powder coating according to claim 2, characterized in that: The motor (201) has a connecting seat (207) on its front side, and a connecting piece (208) is provided inside the connecting seat (207). The nozzle (1) has a symmetrical model sticker (10) pasted on its outer surface.

5. A spray nozzle device for powder coating according to claim 1, characterized in that: The atomizing nozzle (3) includes a connecting pipe (301), inside which are arranged telescopic springs (304) at equal intervals. The left end of the connecting pipe (301) is connected to a spray-coated cover (302), inside which is installed an atomizing orifice plate (303).

6. The spray nozzle device for powder coating according to claim 1, characterized in that: A connecting ring (7) is installed at the right end of the nozzle (1). A connecting screw groove (8) is provided on the inner wall of the connecting ring (7). A second sealing gasket (9) is provided at the right end of the connecting ring (7).

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