CN102553744A - Spray gun with spot spraying function - Google Patents
Spray gun with spot spraying function Download PDFInfo
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- CN102553744A CN102553744A CN2011104044804A CN201110404480A CN102553744A CN 102553744 A CN102553744 A CN 102553744A CN 2011104044804 A CN2011104044804 A CN 2011104044804A CN 201110404480 A CN201110404480 A CN 201110404480A CN 102553744 A CN102553744 A CN 102553744A
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- gun
- spray
- spray gun
- circular passage
- thorn
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Abstract
The invention discloses a spray gun with a spot spraying function, which comprises a grip and a gun pipe. A trigger is arranged on the grip. The gun pipe comprises an annular passage and a thin tubular passage, a corona wire parallel to the axis of the gun pipe is arranged in the annular passage, the annular passage is connected with a compressed air source and a spray powder container, and the thin tubular passage is connected with the compressed air source after being connected with an electromagnetic valve in series. The spray gun can not only be used for atomizing but realizing fine spot spraying effect.
Description
Technical field
The present invention 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 object of the present invention is to provide a kind of thorn spray formula paint spray gun, this thorn spray formula paint spray gun not only can carry out vaporific spraying, and can realize good thorn spray effect.
The technical solution adopted for the present invention to solve the technical problems is: 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.
Beneficial effect of the present invention 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 a kind of structural representation that stings an embodiment of spray formula paint spray gun of the present invention;
Fig. 2 is that the A of gun barrel among Fig. 1 embodiment is to view;
Fig. 3 is a kind of view of spray formula paint spray gun when vaporific spraying of stinging of the present invention;
Fig. 4 is a kind of view of spray formula paint spray gun when the thorn spray of stinging of the present invention.
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 present invention 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-improvements of the present invention; 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 preferred embodiment of the present invention, and is in order to restriction the present invention, not all within spirit of the present invention and principle, any modification of being done, is equal to replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (4)
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.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011104044804A CN102553744A (en) | 2011-12-08 | 2011-12-08 | Spray gun with spot spraying function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011104044804A CN102553744A (en) | 2011-12-08 | 2011-12-08 | Spray gun with spot spraying function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102553744A true CN102553744A (en) | 2012-07-11 |
Family
ID=46401129
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011104044804A Pending CN102553744A (en) | 2011-12-08 | 2011-12-08 | Spray gun with spot spraying function |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102553744A (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1498424A (en) * | 1975-11-27 | 1978-01-18 | Airlub Co Ltd | Apparatus for spraying powder |
| JPS54118446A (en) * | 1978-03-07 | 1979-09-13 | Kansai Paint Co Ltd | Powder spraying gun |
| CN1053760A (en) * | 1990-01-30 | 1991-08-14 | 气体产品与化学公司 | The electric arc spraying of reactive metal |
| US5997643A (en) * | 1994-02-18 | 1999-12-07 | Nordson Corporation | Apparatus for powder coating welding cans |
| EP1303356B1 (en) * | 2000-07-11 | 2004-10-20 | Nordson Corporation | Unipolarity powder coating systems including improved tribocharging and corona guns |
| CN201500603U (en) * | 2009-08-31 | 2010-06-09 | 天津新技术产业园区天博科工贸有限公司 | Spray gun for coating static powder in pipeline |
| CN202410875U (en) * | 2011-12-08 | 2012-09-05 | 吴江云峰金属购件涂装有限公司 | Thorn spray gun |
-
2011
- 2011-12-08 CN CN2011104044804A patent/CN102553744A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1498424A (en) * | 1975-11-27 | 1978-01-18 | Airlub Co Ltd | Apparatus for spraying powder |
| JPS54118446A (en) * | 1978-03-07 | 1979-09-13 | Kansai Paint Co Ltd | Powder spraying gun |
| CN1053760A (en) * | 1990-01-30 | 1991-08-14 | 气体产品与化学公司 | The electric arc spraying of reactive metal |
| US5997643A (en) * | 1994-02-18 | 1999-12-07 | Nordson Corporation | Apparatus for powder coating welding cans |
| EP1303356B1 (en) * | 2000-07-11 | 2004-10-20 | Nordson Corporation | Unipolarity powder coating systems including improved tribocharging and corona guns |
| CN201500603U (en) * | 2009-08-31 | 2010-06-09 | 天津新技术产业园区天博科工贸有限公司 | Spray gun for coating static powder in pipeline |
| CN202410875U (en) * | 2011-12-08 | 2012-09-05 | 吴江云峰金属购件涂装有限公司 | Thorn spray gun |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20120711 |