CN202410875U

CN202410875U - Thorn spray gun

Info

Publication number: CN202410875U
Application number: CN2011205067118U
Authority: CN
Inventors: 高竹筠
Original assignee: WUJIANG YUNFENG METALLIC COMPONENT COATING CO Ltd
Current assignee: WUJIANG YUNFENG METALLIC COMPONENT COATING CO Ltd
Priority date: 2011-12-08
Filing date: 2011-12-08
Publication date: 2012-09-05
Anticipated expiration: 2021-12-08

Abstract

The utility model relates to a thorn spray gun. The gun comprises a gun handle and a gun pipe, wherein a trigger is arranged at the gun handle; the gun pipe comprises an annular channel and a thin pipe channel; a corona wire parallel to the axis of the gun pipe is arranged in the annular channel; the annular channel is connected with a compressed air source and a coating powder container; and the thin pipe channel is connected in series with an electromagnetic valve and is only connected with the compressed air source. By the thorn spray gun, mist spray can be performed, and a good thorn spray effect can be achieved.

Description

Thorn spray formula paint spray gun

Technical field

The utility model relates to a kind of spray gun in the coated metal field, especially, is a kind of electrostatic gun that utilizes the compressed gas-driven coating powder, comprises source of the gas and static recurring structure.

Background technology

For hardware, under more situation, need carry out application to its surface, so that metal component surface has good antiseptic property, and make it more neat and artistic.For this reason; Usually adopt simple manual work to spray paint or the mode of electrostatic spraying; When adopting simple and easy manual work to spray paint,, therefore make surface of the work that the uneven situation of paint trickling takes place easily because the ejection of common spray gun is liquid paint; Finally cause coating fruit after the uneven thickness everywhere, coating quality is relatively poor.

In view of the foregoing; In the coated metal technology of present high requirement; Require to adopt the electrostatic spraying mode to carry out application, promptly adopt electrostatic gun that pulverous charged coating particles is sprayed to charged workpiece, make coating particles be adsorbed in surface of the work equably; Through high temperature melting, levelling, curing process, make coating be coated on surface of the work equably again; Its principle is: electrostatic gun connects a utmost point of power supply, and workpiece connects another utmost point of power supply, and the powder type coating prepn particle is blown out by compressor in electrostatic gun, through the electrostatic generator of muzzle charged after, make it evenly to be adsorbed by workpiece.

For this kind electrostatic gun, it can only projecting fog shape coating powder, and in actual spraying process; Sometimes need spray some minimum parts; For this kind demand, even if adopt the electrostatic gun that to regulate the spraying angle of flare, because spray gun inside does not have thin passage path of navigation; Therefore good coating concentration effect can't be reached, thorn spray effect can not be realized.

Summary of the invention

In order to address the above problem, the purpose of the utility model is to provide a kind of thorn spray formula paint spray gun, and this thorn spray formula paint spray gun not only can carry out vaporific spraying, and can realize good thorn spray effect.

The utility model solves the technical scheme that its technical problem adopted: this thorn spray formula paint spray gun comprises pikestaff and gun barrel, and the pikestaff place is provided with trigger; Said gun barrel comprises a circular passage and a capillary passages; Be provided with the corona wire parallel in the said circular passage with gun tube axis; Said circular passage links to each other with compressed gas source and coating powder container, only links to each other with compressed gas source behind magnetic valve of said capillary passages serial connection.

As preferably, the perisporium of said circular passage is made up of the high-temperature insulation pottery, thereby the electrostatic charge that corona wire is produced remains on inside, circular passage as much as possible, makes coating powder efficiently charged.

As preferably, the internal diameter of said capillary passages between 2mm-5mm, thereby can produce very thin stream effectively.

As preferably, the length of said capillary passages is greater than 10cm.

The beneficial effect of the utility model is: this thorn spray formula paint spray gun when needs carry out vaporific spraying, is closed the magnetic valve in the said capillary passages in use; Coating powder is under the blowing of Compressed Gas; Said circular passage in gun barrel blows out, and to external diffusion, forms smoke-like; In the time need stinging spray to the part of workpiece; Open said magnetic valve; Then forwards will produce a very thin flow line along gun tube axis, according to fluid mechanics principle, very thin flow line ambient air will be pressed to this very thin flow line; So will make the coating powder around the very thin flow line together stabbed the workpiece part with flow line, obtain good thorn spray effect by this very thin flow line traction.

Description of drawings

Fig. 1 is the structural representation of an embodiment of the utility model thorn spray formula paint spray gun;

Fig. 2 is that the A of gun barrel among Fig. 1 embodiment is to view;

Fig. 3 is the view of the utility model thorn spray formula paint spray gun when vaporific spraying;

Fig. 4 is the view of the utility model thorn spray formula paint spray gun when the thorn spray.

Among the figure: 1, gun barrel; 11, circular passage; 110, paint guide; 12, capillary passages; 120, thin airflow duct; 121, magnetic valve; 13, corona wire; 2, pikestaff; 3, trigger.

The specific embodiment

Below in conjunction with accompanying drawing and embodiment the utility model is further specified:

In Fig. 1, embodiment shown in Figure 2, this thorn spray formula paint spray gun comprises pikestaff 2 and gun barrel 1, and pikestaff 2 places are provided with trigger 3, and the startup of these trigger 3 control electrostatic guns is electric related with source of the gas, static recurring structure; Said gun barrel 1 comprises a circular passage 11 and a capillary passages 12; Be provided with corona wire 13 in the said circular passage 11 with gun barrel 1 parallel axes; Said circular passage 11 is through paint guide 110 and compressed gas source and coating powder container (non-the utility model improvements; Not shown) link to each other, magnetic valve of said capillary passages 12 serial connections 121 backs link to each other with compressed gas source through 120 of thin airflow ducts.

Above-mentioned thorn spray formula paint spray gun, the perisporium of said circular passage 11 is made up of the high-temperature insulation pottery, thus the electrostatic charge that corona wire 13 is produced remains on 11 inside, circular passage as much as possible, makes coating powder efficiently charged.

Above-mentioned thorn spray formula paint spray gun, the internal diameter of said capillary passages 12 are between 2mm-5mm, and length is greater than 10cm, thereby can produce very thin stream effectively.

Above-mentioned thorn spray formula paint spray gun when needs carry out vaporific spraying, is closed the magnetic valve 121 in the said capillary passages 12 in use; Coating powder is under the blowing of Compressed Gas; Said circular passage 11 in gun barrel 1 blows out, and to external diffusion, forms smoke-like; As shown in Figure 3, dotted arrow has been illustrated the injection direction of coating powder; In the time need stinging spray to the part of workpiece, open said magnetic valve 121, then forwards will produce a very thin flow line along gun barrel 1 axis; Shown in straight dotted arrow among Fig. 4; According to fluid mechanics principle, very thin flow line ambient air will be pressed to this very thin flow line, shown in curve dotted arrow among Fig. 4; So will make the coating powder around the very thin flow line together stabbed the workpiece part with very thin flow line, obtain good thorn spray effect by this very thin flow line traction.

The above is merely the preferred embodiment of the utility model, and is in order to restriction the utility model, not all within the spirit and principle of the utility model, any modification of being done, is equal to replacement, improvement etc., all should be included within the protection domain of the utility model.

Claims

1. one kind is stung spray formula paint spray gun; Comprise pikestaff (2) and gun barrel (1); Pikestaff (2) locates to be provided with trigger (3); It is characterized in that: said gun barrel (2) comprises a circular passage (11) and a capillary passages (12); Be provided with the corona wire (13) with gun barrel (1) parallel axes in the said circular passage (11), said circular passage (11) link to each other with compressed gas source and coating powder container, and said capillary passages (a 12) magnetic valve of serial connection (121) back links to each other with compressed gas source.

2. thorn spray formula paint spray gun according to claim 1, it is characterized in that: the perisporium of said circular passage (11) is made up of the high-temperature insulation pottery.

3. thorn spray formula paint spray gun according to claim 1, it is characterized in that: the internal diameter of said capillary passages (12) is between 2mm-5mm.

4. according to claim 1 or the described thorn spray of claim 3 formula paint spray gun, it is characterized in that: the length of said capillary passages (12) is greater than 10cm.