CN102553745A - Electrostatic spray gun head - Google Patents
Electrostatic spray gun head Download PDFInfo
- Publication number
- CN102553745A CN102553745A CN2011104043500A CN201110404350A CN102553745A CN 102553745 A CN102553745 A CN 102553745A CN 2011104043500 A CN2011104043500 A CN 2011104043500A CN 201110404350 A CN201110404350 A CN 201110404350A CN 102553745 A CN102553745 A CN 102553745A
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- China
- Prior art keywords
- helical duct
- cylinder
- gun head
- cylinder body
- electrostatic gun
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Abstract
The invention discloses an electrostatic spray gun head, comprising a section of cylinder body. A rotary joint matched with the guan barrel of an electrostatic spray gun is assembled at the back end of the cylinder body. A spiral channel is arranged inside the cylinder body, and an inlet end of the spiral channel extends along the axis of the cylinder body and passes through the back end of the cylinder body, and an outlet end of the spiral channel deviates from the axis of the cylinder body and passes through the front end of the cylinder body; and the inner wall of the spiral channel is a coarse surface. Compared with a diffusion board, the electrostatic spray gun head can improve the diffusion degree of powder paint particles to a large extent. Furthermore, dust is hardly accumulated.
Description
Technical field
The present invention relates to a kind of coated metal instrument, especially relate to electrostatic gun, especially, relate to the rifle head accessory of electrostatic gun.
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; Workpiece connects another utmost point of power supply; The powder type coating prepn particle is blown out by compressor in electrostatic gun, through the electrostatic generator (constituting) of muzzle by static pin or electrostatic disk charged after, make it evenly to be adsorbed by workpiece.
In this kind electrostatic gun, in order to improve the diffusion of the Powdered charged coating particles in rifle head place, to improve the spraying uniformity of coating particles; Generally need to increase a diffuser plate, yet the diffuser plate that adds usually is a staticizer; Its diffusion effect is still very limited, is easy to generate laying dust on the other hand, therefore; Rifle head disperser for electrostatic gun needs further improvement.
Summary of the invention
In order to address the above problem, the object of the present invention is to provide a kind of electrostatic gun head, this electrostatic gun can improve the diffusion of powder type coating prepn particle largely, and be difficult for laying dust with respect to diffuser plate.
The technical solution adopted for the present invention to solve the technical problems is: this electrostatic gun head comprises one section cylinder; This cylinder rear end is equipped with the rotatable joint that is complementary with the electrostatic gun gun barrel; Said cylinder inside offers helical duct; The upstream end of this helical duct extends through the cylinder rear end along said cylinder axis, and the port of export of this helical duct departs from said cylinder axis and extends through the cylinder front end; Said helical duct inwall is a matsurface.
As preferably, said helical duct inwall is the annular burr that relies closely, and the spiral path line quadrature of each annular burr and said helical duct is to increase the circumferential thrust of coating powder air-flow to the helical duct inwall.
As preferably, the port of export of said helical duct is a horn mouth, so that good diffusion space is provided for coating powder.
As preferably, be provided with sealing ring in the said rotatable joint, be a hermetic seal swivel joint.
Beneficial effect of the present invention is: this electrostatic gun head can be assemblied in the gun barrel mouth of common electrostatic gun, and Compressed Gas sprayed coating powder from gun barrel after, the powder air communication sprayed after crossing said helical duct; Because the helical duct inwall is a matsurface, therefore, during powder airflow passes helical duct; To circumferentially promote helical duct, thereby force this electrostatic gun head rotation, in this process; The port of export of helical duct will make the powder of ejection under centrifugal action, improve diffusivity around said cylinder axis rotation, thereby obtain the better spraying uniformity; In addition, this diffusion structure is a bascule, therefore is difficult for laying dust.
Description of drawings
Fig. 1 is the structural representation of a kind of electrostatic gun head of the present invention;
Fig. 2 is the vertical profile sketch map of Fig. 1 embodiment;
Fig. 3 is the spraying effect sketch map of a kind of electrostatic gun head of the present invention.
Among the figure: 1, cylinder; 10, helical duct; 11, upstream end; 12, the port of export; 2, rotatable joint; 3, electrostatic gun gun barrel.
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 electrostatic gun head comprises one section cylinder 1; This cylinder 1 rear end is equipped with the rotatable joint 2 that is complementary with electrostatic gun gun barrel 3; Said cylinder 1 inside offers helical duct 10, and the upstream end 11 of this helical duct 10 extends through cylinder 1 rear end along said cylinder 1 axis, and the port of export 12 of this helical duct 10 departs from said cylinder 1 axis and extends through cylinder 1 front end; Said helical duct 10 inwalls are matsurface, and this matsurface is made up of the annular burr that relies closely, and the spiral path line quadrature of each annular burr as shown in Figure 2 and said helical duct 10 is to increase the circumferential thrust of coating powder air-flow to helical duct 10 inwalls.
Above-mentioned electrostatic gun head, the port of export 12 of said helical duct 10 is a horn mouth, so that good diffusion space is provided for coating powder.
Above-mentioned electrostatic gun head is provided with sealing ring in the said rotatable joint 2, is a hermetic seal swivel joint.
Above-mentioned electrostatic gun head can be assemblied in the gun barrel mouth of common electrostatic gun, and Compressed Gas sprayed coating powder from gun barrel after, the powder air communication was crossed said helical duct 10 back ejections; Because helical duct 10 inwalls are matsurface, therefore, during powder airflow passes helical duct 10; To circumferentially promote helical duct 10, thereby force this electrostatic gun head rotation, in this process; The port of export of helical duct 10 will make the powder of ejection under centrifugal action, improve diffusivity around said cylinder 1 axis rotation, thereby obtain the better spraying uniformity; As shown in Figure 3; Dotted arrow has been illustrated the roughly sprinkling path of coating powder, and it had both had a circumferential diffusion motion, had an axial advancement motion again.
In addition, this electrostatic gun head is bascule as diffusion structure, therefore is difficult for laying dust.
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. electrostatic gun head; Comprise one section cylinder (1); It is characterized in that: this cylinder (1) rear end is equipped with the rotatable joint (2) that is complementary with electrostatic gun gun barrel (3); Said cylinder (1) inside offers helical duct (10); The upstream end (11) of this helical duct (10) extends through cylinder (1) rear end along said cylinder (1) axis, and the port of export (12) of this helical duct (10) departs from said cylinder (1) axis and extends through cylinder (1) front end; Said helical duct (10) inwall is a matsurface.
2. electrostatic gun head according to claim 1 is characterized in that: said helical duct (10) inner wall coarse face is made up of the annular burr that relies closely, the spiral path line quadrature of each annular burr and said helical duct (10).
3. according to claim 1 or the described electrostatic gun head of claim 2, it is characterized in that: the port of export (12) of said helical duct (10) is a horn mouth.
4. electrostatic gun head according to claim 1 is characterized in that: being provided with sealing ring in the said rotatable joint (2), is a hermetic seal swivel joint.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011104043500A CN102553745A (en) | 2011-12-08 | 2011-12-08 | Electrostatic spray gun head |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011104043500A CN102553745A (en) | 2011-12-08 | 2011-12-08 | Electrostatic spray gun head |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102553745A true CN102553745A (en) | 2012-07-11 |
Family
ID=46401130
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011104043500A Pending CN102553745A (en) | 2011-12-08 | 2011-12-08 | Electrostatic spray gun head |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102553745A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103382913A (en) * | 2013-03-22 | 2013-11-06 | 哈尔滨工程大学 | Combined-type rotary oil spray nozzle |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4811898A (en) * | 1987-09-21 | 1989-03-14 | Nordson Corporation | Electrostatic powder spray gun with adjustable deflector and electrostatic shield |
| CN2161380Y (en) * | 1993-06-18 | 1994-04-13 | 李宗能 | Powder coating spray pistol |
| CN2332492Y (en) * | 1998-07-03 | 1999-08-11 | 李宗能 | Powder spray gun |
| CN201049331Y (en) * | 2007-05-29 | 2008-04-23 | 薛春玉 | Particle dry ice spraying cleaning gun |
| CN102114908A (en) * | 2011-01-01 | 2011-07-06 | 赵明 | Pump-jet water propeller system for five-element combined ship |
| CN202410874U (en) * | 2011-12-08 | 2012-09-05 | 吴江云峰金属购件涂装有限公司 | Head of static spray gun |
-
2011
- 2011-12-08 CN CN2011104043500A patent/CN102553745A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4811898A (en) * | 1987-09-21 | 1989-03-14 | Nordson Corporation | Electrostatic powder spray gun with adjustable deflector and electrostatic shield |
| CN2161380Y (en) * | 1993-06-18 | 1994-04-13 | 李宗能 | Powder coating spray pistol |
| CN2332492Y (en) * | 1998-07-03 | 1999-08-11 | 李宗能 | Powder spray gun |
| CN201049331Y (en) * | 2007-05-29 | 2008-04-23 | 薛春玉 | Particle dry ice spraying cleaning gun |
| CN102114908A (en) * | 2011-01-01 | 2011-07-06 | 赵明 | Pump-jet water propeller system for five-element combined ship |
| CN202410874U (en) * | 2011-12-08 | 2012-09-05 | 吴江云峰金属购件涂装有限公司 | Head of static spray gun |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103382913A (en) * | 2013-03-22 | 2013-11-06 | 哈尔滨工程大学 | Combined-type rotary oil spray nozzle |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 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 |