CN214320573U

CN214320573U - Water based paint electrostatic atomization rifle

Info

Publication number: CN214320573U
Application number: CN202023223740.1U
Authority: CN
Inventors: 杨建伟
Original assignee: Dongguan Qibrothers Spraying Equipment Technology Co ltd
Current assignee: Dongguan Qibrothers Spraying Equipment Technology Co ltd
Priority date: 2020-12-28
Filing date: 2020-12-28
Publication date: 2021-10-01
Anticipated expiration: 2030-12-28

Abstract

The utility model belongs to the technical field of the spraying device technique and specifically relates to indicate a water based paint electrostatic atomization rifle, the electric iron comprises a gun body, the spraying mouth, the atomising head, control valve subassembly and needle, the axial of the rifle body is equipped with the valve pocket, the via hole, spout material air flue and atomizing air flue, the rifle body is located to the spraying mouth, the spraying mouth is equipped with the spraying way, the radial valve body control air flue and fuel feeding way that is equipped with of the rifle body, the atomising hole of atomising head and the end intercommunication of giving vent to anger of atomizing air flue, the spraying mouth communicates with the end of giving vent to anger of spouting material air flue, control valve subassembly is installed in the valve pocket, the one end and the case of control valve subassembly of needle are connected, the other end activity of needle sets up in via hole and spraying way, the atmospheric pressure of valve body control air flue output is used for driving the valve core to remove along the valve pocket, the needle is used for opening or shutoff spraying way. The utility model discloses atomizing effectual to water based paint, the spraying is even, opens or the shutoff spraying says through the needle, avoids appearing the problem that water based paint leaked, and the needle can dredge the spraying way, and the spraying is said and is difficult to block up.

Description

Water based paint electrostatic atomization rifle

Technical Field

The utility model belongs to the technical field of the spraying device technique and specifically relates to indicate a water based paint electrostatic atomization rifle.

Background

In recent years, with the pressure of environmental protection policies and the discharge limit standards of VOC from provinces and cities across the country, the environmental requirements of spray paint products are gradually increased, the original chemical paint is not allowed to be sprayed on various products, and some enterprises begin to change the oil paint into the water paint. Electrostatic spraying is a spraying method in which paint is atomized by a rotating spray cup or compressed air and enters an electric field, and the paint mist is charged and atomized into finer particles under the action of a high-voltage electric field and is adsorbed on the surface of an object with different charges under the action of the electric field. However, the viscosity of the water-based paint is high, so that a spray head of a spraying device is easily blocked in the electrostatic spraying process, the pressure in the spray head is too high, and the spray head is cracked and damaged. Therefore, the drawbacks are obvious, and a solution is needed.

SUMMERY OF THE UTILITY MODEL

In order to solve the technical problem, an object of the utility model is to provide a water based paint electrostatic atomization rifle.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

an electrostatic atomizing gun for water paint is composed of a gun body with a valve cavity, a via hole communicated with said valve cavity, a material spraying channel and an atomizing channel, an atomizing head with a valve body and a nozzle surrounding the nozzle, a control valve assembly with another end movably arranged in said via hole and said spraying channel, and a valve body for controlling said channel and an oil supply channel, the valve body controls air pressure output by the air passage to drive the valve core to move along the valve cavity, and the valve needle is used for opening or blocking the spraying passage.

Further, the gun body is provided with an electrostatic pore channel.

Further, the atomizing head is in threaded connection with the gun body.

Furthermore, the middle part of the atomizing head is provided with a through hole for the spraying opening of the spraying nozzle to protrude outside the atomizing head.

Furthermore, one end of the gun body, which is far away from the spraying nozzle, is provided with a sleeve cover.

Further, the sleeve cover is provided with an avoiding hole, and the avoiding hole is communicated with the inner cavity of the sleeve cover.

Furthermore, the control valve component comprises a valve core, an elastic part and a sealing cover, the valve needle is connected with the valve core, the sealing cover is detachably connected with the valve cavity, the elastic part is arranged between the valve core and the sealing cover, and an annular air groove communicated with the valve body control air passage is formed in the circumferential direction of the valve core.

Furthermore, the outer side wall of the valve core is provided with a sealing ring, and the sealing ring is used for sealing a gap between the valve core and the inner wall of the valve cavity.

Furthermore, the air inlet end of the material spraying air passage is connected with a material spraying air pipe, the air inlet end of the atomizing air passage is connected with an atomizing air pipe, the valve body control air passage is connected with a control air pipe, and the oil inlet end of the oil supply passage is connected with an oil pipe.

Furthermore, the gun body is provided with an insertion hole, and one end of the spraying nozzle is inserted in the insertion hole.

The utility model has the advantages that: in practical application, in an initial state, the valve needle penetrates through the hole and the spraying channel, so that the valve needle blocks the communication between the oil supply channel and the spraying channel, the valve needle blocks the spraying channel, the oil supply channel cannot supply the water-based paint to the spraying channel, and the electrostatic atomizing gun for the water-based paint is in a non-working state; when water-based paint needs to be sprayed, the valve body controls the air passage to supply high-pressure air to the valve cavity, the high-pressure air enters the valve cavity and pushes the valve core of the control valve component to move in the valve cavity, the moving valve core drives the valve needle to move until the valve needle opens the spraying passage, so that the oil supply passage is communicated with the spraying passage, the oil supply passage supplies the water-based paint to the spraying passage, meanwhile, the spraying air passage supplies spraying air flow to the spraying nozzle, the spraying air flow enables the water-based paint to be sprayed on a workpiece through the spraying nozzle, the atomizing air flow supplies atomizing air flow to the atomizing head, the atomizing air flow is divided and blown out through the atomizing holes to act on the water-based paint sprayed by the spraying nozzle, and the water-based paint is atomized, so that the water-based paint can be uniformly sprayed on the workpiece. After the spraying is finished, the valve body controls the air passage to stop supplying high-pressure air into the valve cavity, and the valve core of the control valve component drives the valve needle to automatically reset, so that the valve needle blocks the spraying passage, and the leakage of the water-based paint is avoided. The valve needle can reciprocate in the spraying channel, so that the spraying channel can be dredged, and the phenomenon that the spraying channel is blocked is avoided. The utility model discloses atomizing effectual to water based paint, the spraying is even, opens or the shutoff spraying says through the needle, avoids appearing the problem that water based paint leaked, and the needle can dredge the spraying way, and the spraying is said and is difficult to block up, has reduced the cost of maintaining.

Drawings

Fig. 1 is a sectional view of the present invention.

Fig. 2 is a cross-sectional view of another perspective of the present invention.

Description of reference numerals:

1. a gun body; 2. a spray nozzle; 3. an atomizing head; 4. a control valve assembly; 5. a valve needle; 6. a valve cavity; 7. a via hole; 8. a material spraying air passage; 9. an atomizing air passage; 10. spraying a channel; 11. the valve body controls the air passage; 12. an oil supply passage; 13. an electrostatic tunnel; 14. a through hole; 15. covering; 16. avoiding holes; 17. a valve core; 18. an elastic member; 19. sealing the cover; 20. a seal ring; 21. a material spraying air pipe; 22. an atomizing air pipe; 23. a control air pipe; 24. an oil pipe; 25. inserting holes; 26. an annular gas groove.

Detailed Description

In order to facilitate understanding of those skilled in the art, the present invention will be further described with reference to the following examples and drawings, which are not intended to limit the present invention.

As shown in fig. 1 and fig. 2, the utility model provides an electrostatic atomizing gun for water-based paint, which comprises a gun body 1, a spraying nozzle 2, an atomizing head 3, a control valve assembly 4 and a valve needle 5, wherein the gun body 1 is axially provided with a valve cavity 6, a via hole 7 communicated with the valve cavity 6, and a spraying air passage 8 and an atomizing air passage 9 respectively arranged at two sides of the valve cavity 6, the spraying nozzle 2 is arranged on the gun body 1, the spraying nozzle 2 is provided with a spraying passage 10 communicated with the via hole 7, the gun body 1 is radially provided with a valve body control air passage 11 communicated with the valve cavity 6 and an oil supply passage 12 communicated with the spraying passage 10, the atomizing head 3 is arranged on the spraying nozzle 2 or/and the gun body 1, the atomizing head 3 is wound around a spraying port of the spraying nozzle 2, an atomizing hole of the atomizing head 3 is communicated with an air outlet end of the atomizing air passage 9, the spraying nozzle 2 is communicated with an air outlet end of the spraying air passage 8, the control valve assembly 4 is arranged in the valve cavity 6, one end of the valve needle 5 is connected with a valve core 17 of the control valve assembly 4, the other end of the valve needle 5 is movably arranged in the through hole 7 and the spraying channel 10, the air pressure output by the valve body control air channel 11 is used for driving the valve core 17 to move along the valve cavity 6, and the valve needle 5 is used for opening or blocking the spraying channel 10.

In practical application, in an initial state, the valve needle 5 penetrates through the hole 7 and the spraying channel 10, so that the valve needle 5 blocks the communication between the oil supply channel 12 and the spraying channel 10, the valve needle 5 blocks the spraying channel 10, the oil supply channel 12 cannot supply the water-based paint to the spraying channel 10, and the electrostatic atomization gun for the water-based paint is in a non-working state; when water-based paint needs to be sprayed, the valve body control air passage 11 supplies high-pressure air to the valve cavity 6, the high-pressure air enters the valve cavity 6 and pushes the valve core 17 of the control valve assembly 4 to move in the valve cavity 6, the moving valve core 17 drives the valve needle 5 to move until the valve needle 5 opens the spraying passage 10, the oil supply passage 12 is communicated with the spraying passage 10, the oil supply passage 12 supplies the water-based paint to the spraying passage 10, meanwhile, the spraying air passage 8 supplies spraying air flow to the spraying nozzle 2, the water-based paint is sprayed on a workpiece through the spraying nozzle 2 due to the spraying air flow, the atomizing air passage 9 supplies atomizing air flow to the atomizing head 3, the atomizing air flow is shunted and blown out through the atomizing holes to act on the water-based paint sprayed by the spraying nozzle 2, and the water-based paint is atomized, and can be uniformly sprayed on the workpiece. After the spraying is finished, the valve body control air passage 11 stops supplying high-pressure air into the valve cavity 6, and the valve core 17 of the control valve component 4 drives the valve needle 5 to automatically reset, so that the valve needle 5 blocks the spraying passage 10, and the leakage of the water-based paint is avoided. The valve needle 5 can reciprocate in the spraying channel 10, so that the spraying channel 10 can be dredged, and the phenomenon that the spraying channel 10 is blocked is avoided. The utility model discloses atomizing effectual to water based paint, the spraying is even, opens or shutoff spraying through needle 5 says 10, avoids appearing the problem that water based paint leaked, and needle 5 can dredge spraying way 10, and spraying way 10 is difficult to block up, has reduced the cost of maintaining.

In this embodiment, the gun body 1 is provided with an electrostatic pore passage 13, and an outlet end of the electrostatic pore passage 13 is arranged corresponding to the spraying nozzle 2. Static pore 13 can be connected with external static generator, and the high-tension static that produces through external static generator can be so the utility model discloses and produce certain electrostatic magnetic field adsorption affinity between the work piece by the spraying, can be so that the good water based paint of atomizing is adsorbed on the work piece easily, improves the rate of coating after the paint atomizing.

In this embodiment, the atomizing head 3 is in threaded connection with the gun body 1; this structural design, the dismouting of the atomising head 3 and the rifle body 1 of being convenient for.

In this embodiment, the middle of the atomizing head 3 is provided with a through hole 14 through which the spraying opening of the spraying nozzle 2 protrudes out of the atomizing head 3. Not only is convenient for the spraying nozzle 2 to spray the water-based paint on the workpiece, but also is beneficial to the atomizing head 3 to atomize the water-based paint, and the atomizing effect is more obvious.

In this embodiment, a sleeve cover 15 is disposed at an end of the gun body 1 away from the spraying nozzle 2, the sleeve cover 15 is in threaded connection with the gun body 1, so as to facilitate the disassembly and assembly of the gun body 1 and the sleeve cover 15, the sleeve cover 15 plays a role in protecting components on the gun body 1, and the sleeve cover 15 facilitates the connection of the utility model with external structures (such as a manipulator, etc.).

In this embodiment, the sleeve cover 15 is provided with the avoidance hole 16, the avoidance hole 16 is communicated with the inner cavity of the sleeve cover 15, the avoidance hole 16 provides an avoidance space, the material spraying air pipe 21 and the material spraying air passage 8 are convenient to connect, and the static pore passage 13 is also convenient to connect with an external static generator.

In this embodiment, the control valve assembly 4 includes a valve core 17, an elastic member 18 and a cover 19, the valve needle 5 is fixedly connected with the valve core 17, and the cover 19 is detachably connected with the valve cavity 6; preferably, the sealing cover 19 is in threaded connection with the valve cavity 6, the elastic element 18 is arranged between the valve core 17 and the sealing cover 19, an annular air groove 26 communicated with the valve body control air passage 11 is arranged on the valve core 17 in the circumferential direction, and the elastic element 18 is a spring. In practical application, high-pressure gas is introduced into the valve cavity 6, the high-pressure gas pushes the valve core 17 to move in the valve cavity 6, and the valve core 17 compresses the elastic part 18, so that the valve needle 5 opens the spraying channel 10 to spray the workpiece in an atomizing manner; after the spraying is finished, the high-pressure gas is stopped from being introduced into the valve cavity 6, the valve core 17 is reset and moves under the resilience force of the elastic part 18, so that the valve needle 5 is reset to seal the spraying channel 10, and the spraying is stopped.

In this embodiment, the outer side wall of the valve core 17 is provided with a sealing ring 20, and the sealing ring 20 is used for sealing a gap between the valve core 17 and the inner wall of the valve cavity 6, so that the air tightness between the valve core 17 and the valve cavity 6 is good, and the influence on the movement of the valve core 17 and the valve needle 5 due to air leakage is avoided.

In this embodiment, the air inlet end of the material spraying air passage 8 is connected with a material spraying air pipe 21, the air inlet end of the atomizing air passage 9 is connected with an atomizing air pipe 22, the valve body control air passage 11 is connected with a control air pipe 23, and the oil inlet end of the oil supply passage 12 is connected with an oil pipe 24. This structural design is convenient for the utility model discloses use with the exterior structure connection.

In this embodiment, the gun body 1 is provided with the insertion hole 25, and one end of the spray nozzle 2 is inserted into the insertion hole 25, so that the assembly of the spray nozzle 2 and the gun body 1 is facilitated, and the connection between the spray nozzle 2 and the gun body 1 is tight and firm, and the air tightness is good.

All the technical features in the embodiment can be freely combined according to actual needs.

The above-mentioned embodiment is the utility model discloses the implementation scheme of preferred, in addition, the utility model discloses can also realize by other modes, any obvious replacement is all within the protection scope of the utility model under the prerequisite that does not deviate from this technical scheme design.

Claims

1. An electrostatic atomization gun for water paint is characterized in that: the spraying nozzle is arranged on the gun body, the spraying nozzle is provided with a spraying channel communicated with the through hole, the radial direction of the gun body is provided with a valve body control air channel communicated with the valve cavity and an oil supply channel communicated with the spraying channel, the atomizing head is arranged on the spraying nozzle or/and the gun body and is wound around the spraying port of the spraying nozzle, the atomizing hole of the atomizing head is communicated with the air outlet end of the atomizing air channel, the spraying nozzle is communicated with the air outlet end of the spraying air channel, the control valve component is arranged in the valve cavity, one end of the valve needle is connected with a valve core of the control valve component, and the other end of the valve needle is movably arranged in the through hole and the spraying channel, the valve body controls air pressure output by the air passage to drive the valve core to move along the valve cavity, and the valve needle is used for opening or blocking the spraying passage.

2. The electrostatic atomizing gun for water-based paint as claimed in claim 1, wherein: the gun body is provided with an electrostatic pore channel.

3. The electrostatic atomizing gun for water-based paint as claimed in claim 1, wherein: the atomizing head is in threaded connection with the gun body.

4. The electrostatic atomizing gun for water-based paint as claimed in claim 1, wherein: the middle part of the atomizing head is provided with a through hole for the spraying opening of the spraying nozzle to extend to the outside of the atomizing head.

5. The electrostatic atomizing gun for water-based paint as claimed in claim 1, wherein: and a sleeve cover is arranged at one end of the gun body, which is far away from the spraying nozzle.

6. The electrostatic atomizing gun for water-based paint as claimed in claim 5, wherein: the sleeve cover is provided with an avoiding hole, and the avoiding hole is communicated with the inner cavity of the sleeve cover.

7. The electrostatic atomizing gun for water-based paint as claimed in claim 1, wherein: the control valve assembly comprises a valve core, an elastic part and a sealing cover, the valve needle is connected with the valve core, the sealing cover is detachably connected with the valve cavity, the elastic part is arranged between the valve core and the sealing cover, and an annular air groove communicated with the control air passage of the valve body is formed in the circumferential direction of the valve core.

8. The electrostatic atomizing gun for water-based paint according to claim 7, wherein: the outer side wall of the valve core is provided with a sealing ring, and the sealing ring is used for sealing a gap between the valve core and the inner wall of the valve cavity.

9. The electrostatic atomizing gun for water-based paint as claimed in claim 1, wherein: the air inlet end of the material spraying air passage is connected with a material spraying air pipe, the air inlet end of the atomizing air passage is connected with an atomizing air pipe, the valve body control air passage is connected with a control air pipe, and the oil inlet end of the oil supply passage is connected with an oil pipe.

10. The electrostatic atomizing gun for water-based paint as claimed in claim 1, wherein: the gun body is provided with an insertion hole, and one end of the spraying nozzle is inserted in the insertion hole.