CN115837323A - An electrostatic spraying device for conductive paint - Google Patents

Abstract

The invention relates to the technical field of electrostatic spraying, in particular to an electrostatic spraying device for conductive coating; the electric telescopic gun comprises a gun body, a gun barrel, a first column, a second column, a fan blade, a scraper, a second groove, a second rod and an electric telescopic rod; the scraper blade moves to the one end of keeping away from the rifle body along with No. two posts, no. two poles move to the one end of keeping away from the rifle body along with the scraper blade, move along with No. two poles, no. two poles rotate with the scraper blade junction in No. two inslots, and No. two poles receive the torsional spring effect to extrude rifle body inner wall, make No. two poles hug closely rifle body inner wall, and flow at No. two inslots along with gas, the flabellum rotates, the flabellum drives the scraper blade and rotates, the scraper blade drives No. two poles and rotates, when No. two poles rotate, no. two poles clear up the tapered pipe wall of barrel, thereby the accumulational probability of scale deposit has been reduced to the pipe wall.

Description

An electrostatic spraying device for conductive paint

technical field

The invention relates to the technical field of electrostatic spraying, in particular to an electrostatic spraying device for conductive paint.

Background technique

Electrostatic spraying is a spraying method that uses a high-voltage electrostatic electric field to make negatively charged paint particles move in the direction opposite to the electric field, and adsorb the paint particles on the surface of the workpiece; a thicker coating can be obtained in one painting. Spraying equipment consists of a spray gun, a spray cup, and an electrostatic spraying high-voltage power supply. When the spray gun is in use, it is easy to accumulate inside.

A patent has also appeared in the prior art about an electrostatic spraying device for a conductive coating, such as a Chinese patent with the application number CN032335180 disclosing an electrostatic spraying gun, which aims to solve the problem of existing electrostatic spraying guns. The seat is easy to powder and be affected by moisture, the high-voltage package is easily damaged, and the entire potting and maintenance are inconvenient; the spray gun includes a gun handle, a gun barrel, a powder delivery channel, a high-voltage package that generates static electricity, and is connected with the high-voltage package and used in conjunction with it. The high-voltage electric needle for ionized powder also includes a tertiary air channel for delivering three blowing air to the high-voltage electric needle, and a needle valve for adjusting the size of the tertiary air is arranged on the tertiary air channel;

In the above-mentioned prior art, by setting the powder delivery channel, high-voltage bag, high-voltage electric needle and tertiary gas channel, the high-voltage electrode inside the spray gun sleeve of the above application is kept clean without powder accumulation, which effectively solves the problem that the existing electrostatic spray gun is prone to powder accumulation and moisture , leading to the problem of weakening or burning out the static electricity of the high-voltage package, and further improving the life of the spray gun; but the spray gun in the prior art is not sufficiently shaken before spraying, and there is too much deposit on the bottom of the tank when spraying. The pigment causes the nozzle to be blocked; shaking the paint liquid before spraying is too hard, causing the agitator to break and block the nozzle; after one spraying, the nozzle is not cleaned upside down, causing the remaining paint on the nozzle to dry and block the nozzle; during storage, it is inverted or sideways. The pigment precipitation of the pigment will block the discharge hole of the valve; for the products beyond the shelf life, the contents will thicken and block the discharge hole of the valve, which will increase the labor intensity of the workers after processing.

In view of this, the present invention proposes an electrostatic spraying device for conductive paint, which solves the above-mentioned problems.

Contents of the invention

In order to make up for the deficiencies of the prior art, solve the problem of clogging the nozzle due to the excessive pigment deposited at the bottom of the tank during spraying; the excessive force of shaking the paint solution before spraying causes the agitator to break and block the nozzle; Clean the nozzle upside down, causing the remaining paint on the nozzle to block the nozzle after it dries; during storage, if it is inverted or tilted sideways, the pigment in the paint will precipitate and block the discharge hole of the valve; the invention proposes an electrostatic spraying device for conductive paint.

The technical solution adopted by the present invention to solve the technical problems is: an electrostatic spraying device for conductive paint, including a spray gun, a spray cup and a high-voltage power supply for electrostatic spraying; it is characterized in that: the spray gun includes a gun body and a gun barrel, the There is a No. 1 post inside the gun barrel, one end of the No. 1 post is fixedly connected to the gun body, and the No. 1 post is located in the center of the gun barrel;

The opening of the gun barrel away from the gun body is tapered, and the aperture at the end of the gun barrel away from the gun body is smaller than the middle aperture of the gun barrel;

The end of the No. 1 post away from the gun body is rotatably connected to the No. 2 post, and the outer ring of the No. 2 post is evenly fixed with fan blades;

The end of the fan blade away from the No. 2 column is evenly fixed with a scraper; the scraper is in contact with the inner wall of the gun body;

A crushing unit is arranged on the scraper.

Preferably, the crushing unit includes a sawtooth groove, one side of the scraper is provided with a chamfer, the scraper is arranged in an arc, and the sawtooth groove is provided on one side of the chamfer of the scraper.

Preferably, the crushing unit includes a blade, the blade is fixedly connected to one side of the scraper, and the scraper is arranged in an arc shape.

Preferably, the crushing unit includes a No. 1 groove and a helical blade, the No. 1 groove is opened on one side of the scraper, and the helical blade is connected in the No. 1 groove through a rotating shaft.

Preferably, the No. 1 groove has a fan-shaped cross section, and the helical blade is located inside the fan-shaped groove.

Preferably, an electric telescopic rod is fixedly connected to the end of the No. 1 post away from the gun body, and the No. 2 post is rotatably connected to the electric telescopic rod.

Preferably, the end of the scraper near the outlet of the gun barrel is provided with a No. 2 groove, and a No. 2 rod is rotatably connected to the No. 2 groove through a rotating shaft, and a torsion spring is sleeved on the rotating shaft.

Preferably, an annular groove is formed at the bend of the tapered opening at the end of the barrel away from the gun body, and the annular groove is rotatably connected with an annular block.

Preferably, the end of the scraper away from the gun body is arranged in an arc, and the end of the second rod away from the scraper is arranged in an arc.

Preferably, the end of the second rod away from the scraper is rolled with balls, and the balls are in contact with the inner wall of the gun barrel.

The beneficial effects of the present invention are as follows:

1. The electrostatic spraying device of a kind of conductive paint of the present invention, by setting gun body, gun barrel, No. 1 post, No. 2 post, fan blade and scraper; When fan blade rotates, fan blade plays It has the function of breaking up the high-pressure spray, and when the fan blade moves, the scraper set at the end of the fan blade away from the No. 2 column rotates with the fan blade, and when the scraper rotates, the scraper scrapes the inner wall of the gun barrel move, so that the scaling produced by the bonding on the inner wall of the gun barrel is scraped, and by setting a crushing unit on the scraper, the scaling on the barrel is scraped, and the crushing unit breaks the dirt. This prevents large particles from clogging the barrel.

2. The electrostatic spraying device of a kind of conductive paint according to the present invention, by setting No. 2 groove, electric telescopic rod, ring groove, ring block, ball and No. 2 rod; One end of the gun moves, and the second rod moves with the scraper to the end away from the gun body. With the movement of the second rod, the connection between the second rod and the scraper rotates in the second groove, and the second rod is affected The action of the torsion spring squeezes the inner wall of the gun, so that the No. 2 rod is close to the inner wall of the gun, and as the gas flows in the No. 2 groove, the fan blade rotates, the fan blade drives the scraper to rotate, and the scraper drives the second The No. 1 rod rotates, and when the No. 2 rod rotates, the No. 2 rod cleans the tapered tube wall of the gun barrel, thereby reducing the probability of scale accumulation on the tube wall.

Description of drawings

The present invention will be further described below in conjunction with accompanying drawing.

Fig. 1 is a perspective view of the present invention;

Fig. 2 is the structural diagram of gun barrel and embodiment one among Fig. 1;

Fig. 3 is the structural view of embodiment two;

Fig. 4 is the structural view of embodiment three;

Fig. 5 is a broken line graph of six iron block weight detections of group A;

Fig. 6 is a broken line diagram of six iron block weight detections of group B;

Fig. 7 is the broken line diagram of six iron block weight detections of C group;

In the figure: gun body 1, gun barrel 2, No. 1 post 21, No. 2 post 22, fan blade 23, scraper 24, No. 2 slot 241, No. 2 rod 242, electric telescopic rod 25, ring slot 26, ring block 27. Ball 28, crushing unit 4, serrated groove 41, blade 42, No. 1 groove 43, helical blade 431.

Detailed ways

In order to make the technical means, creative features, goals and effects achieved by the present invention easy to understand, the present invention will be further described below in conjunction with specific embodiments.

As shown in Figure 1 to Figure 7;

Embodiment one;

An electrostatic spraying device for conductive paint, comprising a spray gun, a spray cup and an electrostatic spraying high-voltage power supply; the spray gun includes a gun barrel 2 and a gun body 1, and the gun barrel 2 is provided with a No. One end of 21 is fixedly connected to the gun body 1, and the first column 21 is located at the inner center of the gun barrel 2;

The opening of the gun barrel 2 away from the gun body 1 is tapered, and the aperture at one end of the gun barrel 2 away from the gun body 1 is smaller than the middle aperture of the gun barrel 2;

The end of the No. 1 post 21 away from the gun body 1 is rotatably connected to the No. 2 post 22, and the outer ring of the No. 2 post 22 is evenly fixed with fan blades 23;

The end of the fan blade 23 away from the second column 22 is evenly fixed with a scraper 24; the scraper 24 is in contact with the inner wall of the gun body 1;

The scraper 24 is provided with a crushing unit 4;

When in use, when the conductive electrostatic spraying paint enters the spray gun through the storage tank, compressed air is introduced into the spray gun to make the compressed air blow the paint, so that the paint is sprayed out of the spray gun in the form of mist. When the high-pressure spray flows inside the gun barrel 2 When the high-pressure spray flows, the fan blade 23 is blown, so that the fan blade 23 and the second column 22 rotate at the end of the first column 21 away from the gun body 1. When the fan blade 23 rotates, the fan blade 23 plays a role It has the effect of breaking up the high-pressure spray, and when the fan blade 23 moves, the scraper 24 provided at the end of the fan blade 23 away from the second column 22 rotates with the fan blade 23, and when the scraper 24 rotates, the scraper 24 to scrape the inner wall of the gun barrel 2, so that the scaling produced by the bonding of the inner wall of the gun barrel 2 is scraped, and by setting the crushing unit 4 on the scraper 24, the scaling on the gun barrel 2 is scraped After moving down, the crushing unit 4 crushes the dirt, so as to prevent the large particles from clogging the gun barrel 2.

As a specific embodiment of the present invention, the crushing unit 4 includes a sawtooth groove 41, one side of the scraper 24 is chamfered, the scraper 24 is arranged in an arc shape, and the sawtooth groove 41 is opened on the scraper. one side of the chamfer of the plate 24;

During use, by making the crushing unit 4 include the sawtooth groove 41, and by opening a chamfer on one side of the scraper 24, the scraper 24 is arranged in an arc shape, so that the sawtooth groove 41 is opened on the side of the chamfer of the scraper 24, when When the fan blade 23 rotates, the fan blade 23 drives the scraper 24 to rotate. When the scraper 24 rotates, the sawtooth groove 41 on the scraper 24 scrapes the dirt on the scraper 24, and by setting the sawtooth groove 41 , so that the pressure of the sharp part of the fan of the sawtooth groove 41 on the dirt is increased, thereby increasing the scraping efficiency of the scraper 24 on the sawtooth groove 41, and by making the scraper 24 arc-shaped, when the gas blows the fan blade 23 When the scraper 24 rotates, the scraped dirt is drawn out of the gun barrel 2 along with the arc guide of the scraper 24, thereby improving the outflow efficiency of the dirt inside the gun barrel 2.

As a specific embodiment of the present invention, the end of the No. 1 post 21 away from the gun body 1 is fixedly connected with an electric telescopic rod 25, and the No. 2 post 22 is rotatably connected with the electric telescopic rod 25;

During use, the first column 21 is fixedly connected with an electric telescopic rod 25 away from the end of the first column 21 away from the gun body 1, so that the second column 22 is rotatably connected with the electric telescopic rod 25, but when the gas blows the fan blade 23 , the fan blade 23 and the second column 22 rotate at the end of the electric telescopic rod 25 away from the gun body 1, and the scraper 24 rotates with the fan blade 23, and the scraper 24 scrapes the inner wall of the gun barrel 2, and when the scraper When 24 rotates, the electric telescopic rod 25 performs a telescopic movement, so that when the scraper 24 rotates, the scraper 24 reciprocates back and forth on the inner wall of the gun barrel 2, so that the scraping area of the scraper 24 on the inner wall of the gun barrel 2 is within Increase, thereby improving the scraping efficiency of the scraper 24.

As a specific embodiment of the present invention, the end of the scraper 24 close to the outlet of the gun barrel 2 is provided with a No. 2 groove 241, and a No. 2 rod 242 is connected to the No. 2 groove 241 through a rotating shaft. Set with torsion spring;

When in use, a No. 2 groove 241 is provided at the end of the scraper 24 near the outlet of the gun barrel 2, and a No. 2 rod 242 is connected to the No. 2 groove 241 through a rotating shaft, and a torsion spring is sleeved on the rotating shaft. When the rod 25 moves, the electric telescopic rod 25 pushes the No. 2 post 22 to move away from the direction of the gun body 1, and the scraper 24 moves along with the No. 2 post 22 to the end away from the gun body 1, and the No. The plate 24 moves to the end away from the gun body 1, and along with the No. 2 rod 242 moves, the connection between the No. 2 rod 242 and the scraper 24 rotates in the No. The inner wall of the gun body 1 is squeezed, so that the No. 2 rod 242 is close to the inner wall of the gun body 1, and as the gas flows in the No. 2 groove 241, the fan blade 23 rotates, and the fan blade 23 drives the scraper 24 to rotate, scraping The plate 24 drives the No. 2 rod 242 to rotate. When the No. 2 rod 242 rotates, the No. 2 rod 242 cleans the tapered tube wall of the gun barrel 2, thereby reducing the probability of scale accumulation on the tube wall.

As a specific embodiment of the present invention, an annular groove 26 is provided at the bend of the tapered opening at the end of the gun barrel 2 away from the gun body 1, and the annular groove 26 is rotatably connected with an annular block 27;

During use, an annular groove 26 is provided at the bend of the tapered opening at the end of the gun barrel 2 away from the gun body 1, so that the annular groove 26 is rotated and connected with an annular block 27. When the electric telescopic rod 25 stretches, the two The number rod 242 moves to the end away from the gun body 1 along with the scraper 24. When the second rod 242 is in full contact with the tapered inner wall of the gun barrel 2, the end of the scraper 24 away from the gun body 1 contacts the ring block 27, Therefore, when the scraper 24 rotates, the annular block 27 rotates in the annular groove 26 , thereby reducing the friction of the scraper 24 on the inner wall of the gun barrel 2 .

As a specific embodiment of the present invention, the end of the scraper 24 away from the gun body 1 is arranged in an arc shape, and the end of the second rod 242 away from the scraper 24 is arranged in an arc shape;

The end of the second rod 242 away from the scraper 24 is rollingly provided with a ball 28, and the ball 28 is in contact with the inner wall of the gun barrel 2;

During use, the end of the scraper 24 away from the gun body 1 is set in an arc, and the end of the second rod 242 away from the scraper 24 is set in an arc. When the electric telescopic rod 25 moves, the scraper 24 moves away from the gun. One end of the body 1 moves, and when the scraper 24 moves, the scraper 24 drives the No. 2 rod 242 to move toward the end away from the gun body 1, and by making the end of the No. 2 rod 242 away from the scraper 24 be arc-shaped, Therefore, when the No. 2 rod 242 moves away from the gun body 1, the arc surface on the No. 2 rod 242 contacts the inner wall of the gun barrel 2, so that the friction force of the No. 2 rod 242 is reduced when the inner wall of the gun barrel 2 is excessive. Small; and by setting the ball 28 at the end of the second rod 242 away from the scraper 24, the ball 28 is in contact with the inner wall of the gun barrel 2, so that when the scraper 24 drives the second rod 242 to rotate, the ball 28 is in contact with the inner wall of the gun barrel 2 , the ball 28 slides, thereby reducing the frictional force between the second rod 242 and the inner wall of the gun barrel 2 .

Embodiment two;

The difference between the second embodiment and the first embodiment is that the crushing unit 4 includes a blade 42, and the blade 42 is fixed on one side of the scraper 24, and the scraper 24 is arranged in an arc; by making the crushing unit 4 include a blade 42, the blade 42 is fixedly connected to one side of the scraper 24, and the scraper 24 is arranged in an arc shape. When the high-pressure gas blows the scraper 24, the fan blade 23 is blown by the gas, and the fan blade 23 is driven by the rotation. The scraper 24 rotates, and when the scraper 24 rotates, the blade 42 on the scraper 24 moves along with the scraper 24, and when the blade 42 moves, the blade 42 shreds the dirt inside the gun barrel 2, and the blade 42 After the dirt is chopped, the scraper 24 scrapes the broken dirt, and then by making the scraper 24 arc-shaped, the scraper 24 is arc-shaped to guide the scraped dirt, so that the dirt follows With fan blade 23 rotating, dirt is discharged to gun barrel 2 outside.

Embodiment three;

The difference between Embodiment 3 and Embodiment 1 and Embodiment 2 is that the crushing unit 4 includes a No. 1 groove 43 and a helical blade 431. The No. 1 groove 43 is opened on the side of the scraper 24, and the helical blade 431 passes through The rotating shaft is connected in the No. 1 groove 43 by rotation; by making the crushing unit 4 include the No. 1 groove 43 and the helical blade 431, the No. 1 groove 43 is opened on one side of the scraper 24, and the helical blade 431 is connected to the No. 1 groove through the rotating shaft. In the groove 43, when the gas blows the fan blade 23, the fan blade 23 rotates, and when the fan blade 23 rotates, the fan blade 23 drives the scraper 24 to rotate, and when the scraper 24 rotates, the spiral blade 431 sticks to the When the inner wall of the gun barrel 2 rotates, when the helical blade 431 rotates on the inner wall of the gun barrel 2, the sharp part of the outer ring of the helical blade 431 breaks the dirt on the inner wall of the gun barrel 2, and rotates with the helical blade 431 to make the broken The final dirt is guided by the spiral blade 431 to the outlet of the gun barrel 2, so that the dirt is broken and the larger particles are prevented from blocking the outlet;

It also includes that the No. 1 groove 43 has a fan-shaped section, and the helical blade 431 is located inside the fan-shaped groove;

During use, by making the section of No. 1 groove 43 fan-shaped, the helical blade 431 is positioned at the inside of the fan-shaped groove. When the helical blade 431 rotates, the helical blade 431 rotates in the fan-shaped groove. The dirt is crushed, and when the scraper 24 rotates, the broken dirt enters the No. 1 groove 43, and the No. 1 groove 43 is fan-shaped, so that the dirt enters the No. 1 groove 43, and the spiral blade 431 is in the No. 1 groove. Rotating in the groove 43, so that after the dirt enters the No. 1 groove 43, the crushing efficiency of the dirt by the helical blade 431 increases, thereby reducing the particle size of the dirt.

The specific workflow is as follows:

When the conductive electrostatic spraying paint enters the spray gun through the storage tank, compressed air is injected into the spray gun to make the compressed air blow the paint, so that the paint is sprayed out of the spray gun in the form of mist. When the high-pressure spray flows inside the gun barrel 2, the high-pressure Blow the fan blade 23 during the spray flow, so that the fan blade 23 and the second column 22 rotate at the end of the first column 21 away from the gun body 1. When the fan blade 23 rotates, the fan blade 23 acts as a countermeasure against the high-pressure spray. The function of breaking up is carried out, and when the fan blade 23 moves, the scraper 24 provided at the end of the fan blade 23 away from the second column 22 rotates with the fan blade 23, and when the scraper 24 rotates, the scraper 24 is opposite to the gun. The inner wall of the tube 2 is scraped, so that the scaling produced by the bonding on the inner wall of the gun barrel 2 is scraped, and by setting the crushing unit 4 on the scraper 24, the scaling on the gun barrel 2 is scraped. , The crushing unit 4 crushes the dirt, so as to prevent the large particles from clogging the barrel 2.

In order to verify the specific use effect of the present invention, the relevant applicants of the present invention have carried out the following experiments:

1. Experiment and parameter analysis:

1.1 The purpose of the experiment: to compare the difference between the spray guns designed in this application and the existing spray guns on the market when using electrostatic spraying, so as to prove the application effect of this application;

1.2 Experimental equipment: the spray gun designed by this application, China Taiwan Haima spray gun and China Taiwan Yuanqi spray gun; spraying hanger, 5 iron blocks and weighing instrument;

1.3 Experimental procedure: By selecting 18 iron blocks of the same size, divide the 18 iron blocks into three groups, each with six iron blocks, and then use the spray gun designed in this application, the Chinese Taiwan Haima spray gun and the Chinese Taiwan Yuanqi Three types of spray guns correspond to each group of iron blocks, so that the designed spray gun and a group of iron blocks are group A, the Chinese Taiwan Haima spray gun and a group of iron blocks are group B, and the Chinese Taiwan Yuanqi spray gun and a group of iron blocks are C Group;

Each group of spray guns uses 3000g of spray paint to spray six iron blocks, each time using 500g, each iron block weighs 500g, then weighs each sprayed iron block, and records the weighed iron block weight data, and summarized in a table;

1.4 Display of experimental results;

Fig. 1 and Fig. 5 are respectively the data form of the spray gun designed by the present application and a corresponding line chart;

Figure 1

Figure 3 and Figure 6 are the data table of the Haima spray gun in Taiwan, China and the corresponding line chart;

Figure three

Figure 5 and Figure 7 are the data tables of Yuanqi Spray Gun in Taiwan, China and the corresponding line charts of the tables;

Figure five

1.5 Analysis of experimental results:

By analyzing the three sets of experimental data in the above figure, it can be clearly seen from the broken line graph that after the spray gun designed by this application is cleaned internally, after the application is electrostatically sprayed, the loss of the sprayed coating of this application is kept within 15g, and through As can be seen from the analysis of the broken line graph, the paint utilization rate after spraying of the present application is relatively stable.

1.6 Experimental conclusion:

The electrostatic spray gun designed by this application is superior to the existing electrostatic spray guns on the market when used.

Front, back, left, right, up, and down are all based on Figure 2 in the accompanying drawings, and according to the viewing angle of the person as the standard, the side of the device facing the observer is defined as the front, and the left side of the observer is defined as the left, in order analogy.

In describing the present invention, it is to be understood that the terms "central", "longitudinal", "transverse", "front", "rear", "left", "right", "vertical", "horizontal", The orientations or positional relationships indicated by "top", "bottom", "inner", "outer", etc. are based on the orientations or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying the Means that a device or element must have a specific orientation, be constructed and operate in a specific orientation, and therefore should not be construed as limiting the scope of the invention.

Finally, it should be pointed out that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit them. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that: they can still modify the technical solutions described in the aforementioned embodiments, or perform equivalent replacements for some of the technical features; and these The modification or replacement does not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the various embodiments of the present invention. All other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

Claims (10)

1. An electrostatic spraying device of conductive coating comprises a spray gun, a spray cup and an electrostatic spraying high-voltage power supply; the method is characterized in that: the spray gun comprises a gun body (1) and a gun barrel (2), a first column (21) is arranged in the gun barrel (2), one end of the first column (21) is fixedly connected to the gun body (1), and the first column (21) is located in the center of the interior of the gun barrel (2);

the opening of the gun barrel (2) far away from the gun body (1) is arranged in a conical manner, and the aperture of one end of the gun barrel (2) far away from the gun body (1) is smaller than the aperture of the middle part of the gun barrel (2);

one end of the first column (21) far away from the gun body (1) is rotatably connected with a second column (22), and fan blades (23) are uniformly fixedly connected to the outer ring of the second column (22);

one end of the fan blade (23) far away from the second column (22) is uniformly fixedly connected with a scraper (24); the scraper (24) is contacted with the inner wall of the gun body (1);

the scraping plate (24) is provided with a crushing unit (4).

2. An electrostatic spraying device of a conductive paint as claimed in claim 1, wherein: broken unit (4) include sawtooth groove (41), the chamfer has been seted up to scraper blade (24) one side, scraper blade (24) are the arc setting, sawtooth groove (41) are seted up in one side of scraper blade (24) chamfer.

3. An electrostatic spraying device of a conductive paint as claimed in claim 1, wherein: the crushing unit (4) comprises a blade (42), the blade (42) is fixedly connected to one side of the scraper (24), and the scraper (24) is arranged in an arc shape.

4. An electrostatic spraying device of a conductive paint as claimed in claim 1, wherein: the crushing unit (4) comprises a first groove (43) and a spiral blade (431), wherein the first groove (43) is formed in one side of the scraper (24), and the spiral blade (431) is rotatably connected into the first groove (43) through a rotating shaft.

5. An electrostatic spraying device of a conductive paint as claimed in claim 4, wherein: the section of the first groove (43) is fan-shaped, and the spiral blade (431) is positioned inside the fan-shaped groove.

6. An electrostatic spraying device of a conductive paint as claimed in claim 1, wherein: one end of the first column (21) far away from the gun body (1) is fixedly connected with an electric telescopic rod (25), and the second column (22) is rotatably connected with the electric telescopic rod (25).

7. An electrostatic spraying device of a conductive paint as claimed in claim 1, wherein: scraper blade (24) are close to the one end of barrel (2) export and have been seted up No. two groove (241), rotate through the pivot in No. two groove (241) and be connected with No. two pole (242), the cover is equipped with the torsional spring in the pivot.

8. An electrostatic spraying device of a conductive paint as claimed in claim 1, wherein: the gun barrel (2) is far away from the bending part of the conical opening at one end of the gun body (1) and is provided with an annular groove (26), and the annular groove (26) is rotatably connected with an annular block (27).

9. An electrostatic spraying device of a conductive paint as claimed in claim 7, wherein: the one end that the rifle body (1) was kept away from in scraper blade (24) is the arc setting, no. two pole (242) keep away from the one end of scraper blade (24) and set up for the arc.

10. An electrostatic spraying device of a conductive paint as claimed in claim 7, wherein: one end of the second rod (242) far away from the scraper (24) is provided with balls (28) in a rolling mode, and the balls (28) are in contact with the inner wall of the gun barrel (2).

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