Electrostatic powder spraying device

Abstract

The utility model discloses an electrostatic powder spraying device which comprises a spray gun body with a nozzle, one end of the spray gun body is connected with an air pressure regulating valve, the air pressure regulating valve is provided with an air pressure meter used for displaying air pressure, a fixing frame is arranged on the surface of the air pressure meter, a guide rod is installed in the fixing frame, and the guide rod is connected with the spray gun body. A mounting plate sleeves the circumferential outer wall of each guide rod, a sponge wiping plate is arranged on one side, opposite to the barometer, of the mounting plate, an elastic part is arranged between the mounting plate and the inner wall of the fixing frame, the guide rods are symmetrically arranged about the axis of the fixing frame, and the sponge wiping plate is detachably connected with the mounting plate. And the sponge wiping plate is connected with the mounting plate through a plurality of bolts. According to the electrostatic powder spraying device, the situation that in the spraying process, dust adheres to the device, so that reading by personnel is difficult is avoided, it is guaranteed that the surface of the device is clean, and reading by the personnel is facilitated.

Description

Technical Field

[0001] The utility model relates to the technical field of electrostatic spraying, in particular to an electrostatic powder spraying device. Background Art

[0002] Electrostatic spraying refers to a coating method that uses the principle of corona discharge to charge atomized paint negatively under the action of a high-voltage DC electric field, and then adsorbs on the surface of a positively charged substrate to discharge. In order to ensure the stability of the spraying air pressure during electrostatic powder spraying, an air pressure regulating mechanism needs to be set up, and the air pressure is regulated by an air pressure regulating valve. The principle of the air pressure regulating valve is to use the balance between the spring and the gas pressure to control the gas flow and pressure.

[0003] After searching, the patent with the patent announcement number CN214288872U discloses "a hand-held spray gun for painting handicrafts", which includes a gun body, an air interface, an air pressure regulating valve, an air spring switch, a paint flow regulating valve, a mist regulating valve, a trigger, an air cover and a nozzle; the air interface is located below the gun body and is connected and fixed to the gun body through a thread; the air pressure regulating valve is located at the lower end of the gun body and is connected and fixed to the gun body through a thread; the air spring switch is installed in the gun body and is fixedly connected to the gun body through a thread, and one end extends out of the gun body to connect with the trigger; the paint flow regulating valve is installed at the upper end of the gun body and is connected and fixed to the gun body through a thread. The device is simple and easy to operate, making it convenient to add paint and change paint colors. At the same time, it can prevent the paint gun from being blocked during use, avoid damage to the paint gun, and improve the work efficiency of the hand-held spray gun for painting handicrafts.

[0004] The air pressure regulating valve is generally equipped with a barometer to facilitate personnel to obtain air pressure information in a timely manner. The electrostatic field drive can reduce the dispersion of powder during electrostatic spraying. However, in actual use, it is difficult to avoid air flow and high dust content in the air, which causes powder to splash and deposit on the barometer, resulting in unclear barometer readings, which in turn affects the correct reading of personnel. Utility Model Content

[0005] The utility model aims to provide an electrostatic powder spraying device, which avoids the situation that dust adheres to the device during the spraying process, causing difficulty for personnel to read the readings, ensures that the surface of the device is clean, and is convenient for personnel to read the readings.

[0006] To achieve the above-mentioned purpose, the technical solution adopted by the utility model is: an electrostatic powder spraying device, comprising: a spray gun body with a nozzle, one end of the spray gun body is connected to an air pressure regulating valve, and the air pressure regulating valve has a pressure gauge for displaying the air pressure, a fixed frame is arranged on the surface of the pressure gauge, and a guide rod is installed inside the fixed frame, and a mounting plate is sleeved on the circumferential outer wall of the guide rod, a sponge wiper is arranged on the side of the mounting plate opposite to the pressure gauge, and an elastic member is arranged between the mounting plate and the inner wall of the fixed frame.

[0007] The further improved scheme in the above technical scheme is as follows:

[0008] 1. In the above solution, the guide rods are symmetrically arranged about the axis of the fixed frame.

[0009] 2. In the above solution, the sponge wiping plate is detachably connected to the mounting plate.

[0010] 3. In the above solution, the sponge wiping plate and the mounting plate are connected by a plurality of bolts.

[0011] 4. In the above solution, the length of the mounting plate is 1 to 1.5 times the diameter of the barometer.

[0012] 5. In the above solution, a trigger is provided in the middle of the spray gun.

[0013] 6. In the above solution, a paint tank is provided between the trigger and the nozzle.

[0014] Due to the application of the above technical solution, the utility model has the following advantages compared with the prior art:

[0015] The utility model discloses an electrostatic powder spraying device, a fixing frame is arranged on the surface of the barometer, a guide rod is installed inside the fixing frame, a mounting plate is sleeved on the circumferential outer wall of the guide rod, a sponge wiping plate is arranged on the side of the mounting plate relative to the barometer, an elastic member is arranged between the mounting plate and the inner wall of the fixing frame, a person can push the mounting plate to make the sponge wiping plate on the mounting plate clean the barometer, after releasing it, the barometer is reset under the restoring action of the elastic member to be cleaned again, thus avoiding the situation that dust adheres to the barometer during the spraying process, causing difficulty for the person to read the reading, and ensuring that the surface of the barometer is clean, so that the person can read the reading conveniently. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Attached Figure 1 This is a schematic diagram of the structure of the electrostatic powder spraying device of the utility model;

[0017] Attached Figure 2 The schematic diagram of the local structure of the electrostatic powder spraying device of the utility model is shown in FIG. Figure 1 ;

[0018] Attached Figure 3 The schematic diagram of the local structure of the electrostatic powder spraying device of the utility model is shown in FIG. Figure 2 .

[0019] In the above drawings: 1. air pressure regulating valve; 2. air pressure gauge; 3. spray gun body; 301. nozzle; 302. trigger; 303. paint tank; 4. guide rod; 5. bolt; 6. fixing frame; 7. mounting plate; 8. sponge wiper; 9. elastic member. Implementation

[0020] The present invention can be further understood through the specific embodiments given below, but they are not intended to limit the present invention.

[0021] Embodiment 1: An electrostatic powder spraying device comprises: a spray gun body 3 having a nozzle 301, one end of the spray gun body 3 is connected to an air pressure regulating valve 1, and the air pressure regulating valve 1 has a barometer 2 for displaying air pressure. The spray gun body is held and the trigger is pulled to spray the paint in the paint tube from the nozzle. During the long spraying process, dust will adhere to the barometer and it is not convenient to read the reading. At this time, the barometer can be cleaned;

[0022] A fixing frame 6 is provided on the surface of the barometer 2, and a guide rod 4 is installed inside the fixing frame 6, and a mounting plate 7 is sleeved on the circumferential outer wall of the guide rod 4, a sponge wiper 8 is provided on the side of the mounting plate 7 relative to the barometer 2, and an elastic member 9 is provided between the mounting plate 7 and the inner wall of the fixing frame 6;

[0023] During cleaning, the mounting plate is operated to slide along the guide rod, the mounting plate compresses the elastic part and drives the sponge wiping plate to move to clean the surface of the barometer. After cleaning, the mounting plate is released, and the elasticity of the elastic part is used to drive the mounting plate and the sponge wiping plate to reset, and the surface of the barometer is cleaned again.

[0024] The guide rods 4 are symmetrically arranged about the axis of the fixed frame 6 .

[0025] The sponge wiping plate 8 and the mounting plate 7 are detachably connected.

[0026] The sponge wiping board 8 is connected to the mounting plate 7 by a plurality of bolts 5. When the sponge wiping board needs to be cleaned or replaced, the sponge wiping board can be disassembled or assembled by screwing the bolts.

[0027] The length of the mounting plate 7 is 1.1 times the diameter of the barometer 2 .

[0028] A trigger 302 is disposed in the middle of the spray gun 32 .

[0029] Embodiment 2: An electrostatic powder spraying device, comprising: a spray gun body 3 having a nozzle 301, one end of the spray gun body 3 is connected to an air pressure regulating valve 1, and the air pressure regulating valve 1 has a barometer 2 for displaying air pressure, a fixed frame 6 is arranged on the surface of the barometer 2, and a guide rod 4 is installed inside the fixed frame 6, and a mounting plate 7 is sleeved on the circumferential outer wall of the guide rod 4, a sponge wiper 8 is arranged on the side of the mounting plate 7 relative to the barometer 2, and an elastic member 9 is arranged between the mounting plate 7 and the inner wall of the fixed frame 6;

[0030] The guide rod can support the movement of the mounting plate and improve the movement stability of the mounting plate. When the mounting plate moves downward on the surface of the guide rod, the elastic member will be driven to deform. Therefore, after the force applied to the mounting plate is released after the downward movement, the elasticity of the elastic member can be used to drive the mounting plate to quickly move upward and reset, thereby improving the convenience of operation.

[0031] By pushing up the mounting plate, the staff can use the sponge block on the mounting plate to clean the pressure gauge. After releasing it, the sponge block can be reset under the recovery action of the elastic part to clean the pressure gauge again, thus avoiding the situation in which dust adheres to the pressure gauge during the spraying process, making it difficult for staff to read the readings, and ensuring that the surface of the pressure gauge is clean, making it easy for staff to read the readings.

[0032] The guide rods 4 are symmetrically arranged about the axis of the fixed frame 6 .

[0033] The sponge wiping plate 8 and the mounting plate 7 are detachably connected.

[0034] The length of the mounting plate 7 is 1.4 times the diameter of the barometer 2 .

[0035] A trigger 302 is disposed in the middle of the spray gun 32 .

[0036] A paint tank 303 is disposed between the trigger 302 and the nozzle 301 .

[0037] The working principle is:

[0038] When in use, hold the spray gun body and pull the trigger to spray the paint in the paint tube from the nozzle. During the long spraying process, dust will adhere to the pressure gauge and make it inconvenient to read. At this time, the pressure gauge can be cleaned. When cleaning, operate the mounting plate to slide along the guide rod. The mounting plate compresses the elastic part and drives the sponge wiper to move to clean the surface of the pressure gauge. After cleaning, loosen the mounting plate, use the elasticity of the elastic part to drive the mounting plate and the sponge wiper to reset, and clean the surface of the pressure gauge again. When the sponge wiper needs to be cleaned and replaced, the sponge wiper can be disassembled and assembled by tightening the bolts.

[0039] When the above-mentioned electrostatic powder spraying device is used, the personnel can push up the mounting plate so that the sponge block on the mounting plate can clean the barometer. After releasing it, the sponge block on the mounting plate can be reset to clean the barometer again under the recovery action of the elastic part, thereby avoiding the situation in which dust adheres to the barometer during the spraying process, making it difficult for personnel to read the readings, and ensuring that the surface of the barometer is clean, making it easy for personnel to read the readings.

[0040] The above embodiments are only for illustrating the technical concept and features of the utility model, and their purpose is to enable people familiar with the technology to understand the content of the utility model and implement it accordingly, and they cannot be used to limit the protection scope of the utility model. Any equivalent changes or modifications made according to the spirit of the utility model should be included in the protection scope of the utility model.

Claims

1. An electrostatic powder spraying device, comprising: A spray gun body (3) having a nozzle (301), one end of the spray gun body (3) being connected to an air pressure regulating valve (1), and the air pressure regulating valve (1) being provided with a barometer (2) for displaying air pressure, characterized in that a fixing frame (6) is provided on the surface of the barometer (2), a guide rod (4) is installed inside the fixing frame (6), a mounting plate (7) is sleeved on the circumferential outer wall of the guide rod (4), a sponge wiping plate (8) is provided on the side of the mounting plate (7) opposite to the barometer (2), and an elastic member (9) is provided between the mounting plate (7) and the inner wall of the fixing frame (6).

2. The electrostatic powder spraying device according to claim 1, characterized in that: The guide rods (4) are symmetrically arranged with respect to the axis of the fixed frame (6).

3. The electrostatic powder spraying device according to claim 2, characterized in that: The sponge wiping plate (8) is detachably connected to the mounting plate (7).

4. The electrostatic powder spraying device according to claim 3, characterized in that: The sponge wiping plate (8) and the mounting plate (7) are connected via a plurality of bolts (5).

5. The electrostatic powder spraying device according to claim 1, characterized in that: The length of the mounting plate (7) is 1 to 1.5 times the diameter of the barometer (2).

6. The electrostatic powder spraying device according to claim 1, characterized in that: A trigger (302) is provided in the middle of the spray gun (32).

7. The electrostatic powder spraying device according to claim 6, characterized in that: A paint tank (303) is provided between the trigger (302) and the nozzle (301).

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