CN204602461U - A kind of line source electrode electrostatic powder coating device - Google Patents
A kind of line source electrode electrostatic powder coating device Download PDFInfo
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- CN204602461U CN204602461U CN201520108996.8U CN201520108996U CN204602461U CN 204602461 U CN204602461 U CN 204602461U CN 201520108996 U CN201520108996 U CN 201520108996U CN 204602461 U CN204602461 U CN 204602461U
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Abstract
The utility model relates to a kind of line source electrode electrostatic powder coating device, comprise sprayer body, described sprayer body is provided with 2 ~ 100 tube cell pipe joints and and compressed air pipe joint between each tube cell pipe joint, also comprise be positioned at sprayer body spraying cavity below the nozzle with spray crack structure and the electrode be positioned at below nozzle.This utility model adopt a straight line elongated gap replace many spray gun side by side with certain pitch arrangement, can to plate surface even application powder, again can high speed electrostatic powder coating.
Description
Technical field
The utility model relates to a kind of electrostatic powder spraying field, particularly relates to the interrupted steel plate of plane, aluminium sheet, or coil of strip, aluminium volume continuous high speed electrostatic powder spraying device, relate to a kind of line source electrode electrostatic powder coating device specifically.
Background technology
At present, the mode of electrostatic powder coating is generally adopted to carry out surface spraying to hardware, cold-rolled steel sheet, galvanized steel plain sheet and aluminium sheet in the world.
Electrostatic powder coating employing is many carries out spray gun.General spray gun arranges independent HV generator in the rifle body inside of spray gun, produces electrostatic field at its jet expansion electrode.Electrode is generally a rectilinear wire and stretches out jet expansion a little, and guidewire tip is sharp shape.Concentrated by this tip and a bit produce high-voltage electrostatic field, be called that point source discharges, nozzle ejection powder carries out charged.Because body of spray gun rifle is little, it is not high that inside arranges electrostatic generator power, and again owing to only a bit producing electric field by point source electric discharge in guidewire tip, so electrostatic field intensity is not high, charge capacity is low.So the powder of every root spray gun ejection is relatively little, the material sprayed in the unit interval is few, the material speed of service is low.
For the sprayer of more existing employing line source electrodes, annular umbrella-like nozzle, its powder spray amount is larger than above-mentioned spray gun.If be arranged in a row by this kind of many handle of spray gun and be arranged to one fixed width, carry out many layouts, the sheet material of commensurateiy wide also can be sprayed.But be arranged in a row wherein two spray gun spacing can not be near, reason has two.First, spray tip electrode is with high-pressure electrostatic, when two nozzle distances are near, if because some nozzles have electrical potential difference because of electric leakage or other reason between two nozzles, closely electric discharge phenomena can be produced because of distance, lose or reduce the electromotive force of nozzle, its charge capacity declines, the charged weak effect of powder and affect spraying; Discharge also is dangerous phenomenon in spray coating operations simultaneously, can cause dust-firing or blast.The second, because it adopts nozzle ring, the powder sprayed becomes umbrella taper shape to amplify form.When two nozzle distances are near, powder ejection conical lower section edge can be assembled, intersects or be interfered, will certainly make this place's powder local than other concentrated, measure greatly.The nozzle equidistantly arranged side by side a row sprays the sheet material run, local in other in above-mentioned powders region coatings thickness.And the major requirement of sheet material powder spray is exactly along strip width, powder spray thickness is wanted evenly, therefore not reach perfect coating quality.In addition, because spray gun distance can not be near, so nozzle quantity is limited when arranging that in a row and sprayed strip width is similar to, thus the total amount of annular lineation electrode that formed of all nozzles or overall length relatively little, the intensity that the electrostatic field of its generation is total is just not high, and charge capacity is not high yet.Above-mentioned nozzle ring line source electrode spray gun is when spraying the sheet material of one fixed width, many spray gun spacing certain distance is arranged is needed to spray, heart position is different with the amount of powder of the marginal position of the conical magnifying state of ejection umbrella wherein for the powder sprayed due to spray gun, just different along the thickness of plate width direction powder under sheet material operation state state.Even if above-mentioned spray gun arranged in rows, can not avoid this shortcoming.
Utility model content
The purpose of this utility model is in order to large powder amount, uniform coiled material, sheet material electrostatic spraying, provides a kind of and improves charge capacity by line source electrode and external electrostatic generator, provide a kind of line source electrode electrostatic powder coating device.
Line source electrode electrostatic powder coating device described in the utility model, comprises sprayer body.Wherein: described sprayer body is provided with 2 ~ 100 tube cell pipe joints and and compressed air pipe joint between each tube cell pipe joint, also comprise be positioned at sprayer body spraying cavity below the nozzle with spray crack structure and the electrode be positioned at below nozzle.
Described sprayer body has the hole of installing tube cell pipe joint and installing compressed air pipe joint, the spraying cavity top of installing tube cell pipe joint is circular apertures, its underpart is set to has oblate or flat seam type through hole, the spray seam of the nozzle arranged below the oblate Kong Yuqi in spraying cavity bottom is connected, and the wall in the hole of described installation tube cell pipe joint is provided with 1 ~ 3 passage be communicated with the hole of installing compressed air pipe joint.
Described nozzle is the microscler cavity of straight line, and this cross section, slit both sides is parallel lines, or the splayed of less entrance and bigger exit or tubaeform, described splayed both sides are straight lines, or curve, no matter be splayed or tubaeform, be all symmetrical arranged along sprayer center line about it.
Described electrode is the nozzle centre being positioned at nozzle, parallel with spout, arranges an one metal wire electrode, and wire two ends are fixed on spray seam outlet both sides.
Described electrode is longilineal, and cross section is the metal material of knife-edge, is positioned at spray seam length both sides or for zigzag fashion knife-edge metal material, is positioned at spray seam length both sides.
Described electrode is an one metal wire, is positioned at the nozzle centre of nozzle, parallel with spout, and wire two ends are fixed on spray seam outlet both sides.
Described electrode is the similar leg-of-mutton metal material in cross section, is positioned at the spout centre of nozzle, parallel with spout, and one jiao, triangle is towards spout.
Compared with prior art, the utility model has the following advantages and good effect:
1. according to existing plate surface powder spray, sprayer described in the utility model requires that surface powder is even, adopt a straight line elongated gap replace many spray gun side by side with certain pitch arrangement.Again because spray seam arrival end adopts the equidistant tube cell input of a row many and the microscler line source electrode of straight line, so charge capacity and spraying uniformity all meet sheet material high speed electrostatic powder coating.
2. adopt line source electrode to produce electrostatic field, line source electrode is long, can carry out charged to more substantial powder, improves powder spray ability, thus meeting relatively reduces sprayer quantity or can complete the sheet material powder spray of the higher speed of service.
Accompanying drawing explanation
Fig. 1 is the front view of sprayer described in the utility model;
Fig. 2 is that the C of Fig. 1 is to diagram;
Fig. 3 is the B-B sectional view of Fig. 1, represents that the electrode of sprayer shown in Fig. 1 is the side-looking situation of blade-like;
Fig. 4 is the B-B sectional view of Fig. 1, represents that the electrode of sprayer shown in Fig. 1 is side-looking situation wiry;
Fig. 5 is the B-B sectional view of Fig. 1, represents that shown in Fig. 1, sprayer electrode is leg-of-mutton side-looking situation;
Fig. 6 represents that in Fig. 1, sprayer electrode front is jagged situation;
Description of reference numerals:
1-tube cell; 2-compressed air hose; 3-tube cell pipe joint; 4-compressed air pipe joint; 5-sprays cavity; 6-passage; 7-nozzle; 8-electrode; 9-wire electrode; 10-metal material; 11-parallel lines; 12-splayed straight line; 13-splayed curve; 14-sprayer center line; 15-zigzag fashion; 16-sprayer body.
Detailed description of the invention
Be described further below in conjunction with the detailed description of the invention of accompanying drawing to line source electrode electrostatic powder coating device of the present utility model.
See Fig. 1 and Fig. 2, sprayer described in the utility model comprises sprayer body 16, be arranged at least 2 ~ 100 tube cell pipe joints 3 on sprayer body and and compressed air pipe joint 4 between each tube cell pipe joint 3, that is: tube cell pipe joint 3 and compressed air pipe joint 4 interval are arranged.Like this, the number ratio tube cell pipe joint 3 of tube cell pipe joint 3 wants many one.Also comprise be positioned at sprayer body spraying cavity 5 below the nozzle 7 with spray crack structure and the electrode 8 be positioned at below nozzle.
The quantity of described tube cell pipe joint 3 and compressed air pipe joint 4 is determined according to by the width of spraying workpiece, and under the sprayed width substrate to be coated that is 1000mm ensures uniform situation, quantity is 20.
Described sprayer body 16 has the hole of installing tube cell pipe joint 3 and installing compressed air pipe joint 4, spraying cavity 5 top of installing tube cell pipe joint 3 is circular apertures, its underpart has oblate or flat seam type through hole, the circular apertures of cavity upper end is connected with bottom oblateness or flat slit-like hole rounding off, and the nozzle 7 of the spray crack structure arranged below the oblate Kong Yuqi in cavity bottom is connected.Wall between the hole of described installation compressed air pipe joint and the hole of installing tube cell pipe joint is provided with 1 ~ 3 passage, the hole of installing tube cell pipe joint is communicated with the hole of installing compressed air pipe joint by this passage, compressed air is made to enter in the hole of installing tube cell pipe joint, compressed air enters spraying cavity 5 thus, make air be split into two-way or three tunnels input spraying cavity 5, the air of shunting can play the effect of atomization or homogenize powder.
Described nozzle 7 is the microscler cavity of straight line, and this cross section, slit both sides can be parallel lines 11, sees Fig. 3; Also can be the splayed or tubaeform of less entrance and bigger exit, described splayed both sides can be straight lines 12, see Fig. 4; Also can be curve 13, see Fig. 5, be no matter splayed tubaeform or its about be symmetrical arranged along sprayer center line 14.
Described electrode have four kinds multi-form.
Fig. 3 represents first embodiment of electrode, and this electrode 8 is elongated shape, cross section is the metal material of knife-edge, is positioned at spray seam length both sides, sees number in the figure 8.
Fig. 4 represents second embodiment of electrode, and this electrode 8 is for being positioned at the nozzle centre of nozzle 7, parallel with spout, arranges an one metal wire, sees number in the figure 9.Wire two ends are fixed on spray seam outlet both sides.
Fig. 5 represents the 3rd embodiment of electrode, and this electrode 8 is positioned at the nozzle 7 place centre of spray crack structure, parallel with spout, arranges a metal material, the similar triangle in cross section, sees number in the figure 10; One jiao, triangle is towards spout.
Fig. 6 represents the 4th embodiment of electrode, and this electrode 8, for having the metal material of the knife-edge of zigzag fashion, is positioned at the both sides of spray seam length, sees number in the figure 15.
Enter spraying cavity 5 by tube cell 1 after compressed air mixes with powder, the air in external compression air hose 2 together inputs in this spraying cavity 5 by the passage 6 that now cavity sidewalls is opened, and the nozzle 7 that then powder linearly sprays crack structure sprays through electrode; Now, electrostatic generator output high voltage source makes powder charged, with electrostatic charge through the electrostatic field that electrode discharge produces.Under having above-mentioned each compressed air to promote, fly to the sheet material with another polarity electric field, realize electrostatic powder coating.
When passage is designed to 2 or 3, that is: entering before in this spraying cavity 5, air is shunted in two-way or three tunnels input spraying cavity 5, and the air of shunting can play atomization or the effect of homogenize powder; Then the nozzle 7 that the powder after atomization or homogenize linearly sprays crack structure can spray uniformly across electrode more.Equally, the electrostatic field powder that electrostatic generator output high voltage source produces through electrode discharge is charged, with electrostatic charge.Under having above-mentioned each compressed air to promote, fly to the sheet material with another polarity electric field, realize electrostatic powder coating, coating quality is high.
Sprayer described in the utility model is equivalent to existing that many and its electrode is the microscler electrode of straight line in a row for the spray gun collection that gathers, employing be that line source electrode produces high-voltage electrostatic field.Because line source electrode is much put point source electrodes and formed formation continuously as same group, its charge capacity is several times as much as point source electrodes, so line source electrode charge capacity is far above point source.Meanwhile, what adopt due to line source electrode again is external electrostatic generator, because external electrostatic generator power can be accomplished far above the built-in electrostatic generator of above-mentioned spray gun, also can accomplish to be greater than above-mentioned many summation of built-in for spray gun electrostatic generator power.So its external electrostatic generator can meet the utility model line source electrode apply larger charge capacity.Meanwhile, this line source electrode length is greater than the many summation of annular electrode spray gun of Boulez one row, so charge capacity is greater than many annular electrode spray gun.Meet to ejection a large amount of powder carry out charged, be applicable to the interrupted steel plate of plane, aluminium sheet, or coil of strip, aluminium volume continuous high speed electrostatic powder coating.
Claims (10)
1. a line source electrode electrostatic powder coating device, comprise sprayer body, it is characterized in that: described sprayer body (16) is provided with 2 ~ 100 tube cell pipe joints (3) and and the compressed air pipe joint (4) that is positioned between each tube cell pipe joint (3), also comprise the nozzle (7) with spray crack structure of spraying cavity (5) below being positioned at sprayer body and the electrode (8) be positioned at below nozzle.
2. electrostatic powder coating device according to claim 1, it is characterized in that: described sprayer body (16) has the hole of installing tube cell pipe joint (3) and installing compressed air pipe joint (4), spraying cavity (5) top of installing tube cell pipe joint (3) is circular apertures, its underpart is set to has oblate or flat seam type through hole, the spray seam of the nozzle (7) arranged below the oblate Kong Yuqi in spraying cavity (5) bottom is connected, the wall in the hole of described installation tube cell pipe joint is provided with 1 ~ 3 passage (6) be communicated with the hole of installing compressed air pipe joint (4).
3. electrostatic powder coating device according to claim 1 and 2, it is characterized in that: described nozzle (7) is the microscler cavity of straight line, this cross section, slit both sides is parallel lines (11), or the splayed of less entrance and bigger exit or tubaeform, described splayed both sides are straight line (12), or curve (13), no matter be splayed or tubaeform, be all symmetrical arranged along sprayer center line (14) about it.
4. electrostatic powder coating device according to claim 1 and 2, it is characterized in that: described electrode (8) is for being positioned at the nozzle centre of nozzle (7), parallel with spout, arrange an one metal wire electrode, wire two ends are fixed on spray seam outlet both sides.
5. electrostatic powder coating device according to claim 3, it is characterized in that: described electrode (8) is for being positioned at the nozzle centre of nozzle (7), parallel with spout, arrange an one metal wire electrode (9), wire two ends are fixed on spray seam outlet both sides.
6. electrostatic powder coating device according to claim 1 and 2, it is characterized in that: described electrode (8) is for longilineal, cross section is the metal material of knife-edge, is positioned at spray seam length both sides or for zigzag fashion knife-edge metal material, is positioned at spray seam length both sides.
7. electrostatic powder coating device according to claim 1 and 2, it is characterized in that: described electrode (8) is an one metal wire, be positioned at the nozzle centre of nozzle (7), parallel with spout, wire two ends are fixed on spray seam outlet both sides.
8. electrostatic powder coating device according to claim 3, is characterized in that: described electrode (8) is an one metal wire, is positioned at the spout centre of nozzle (7), parallel with spout, and wire two ends are fixed on spray seam outlet both sides.
9. electrostatic powder coating device according to claim 1 and 2, it is characterized in that: described electrode (8) is the similar leg-of-mutton metal material in cross section, be positioned at the spout centre of nozzle (7), parallel with spout, one jiao, triangle is towards spout.
10. electrostatic powder coating device according to claim 1 and 2, it is characterized in that: described electrode (8) is the similar leg-of-mutton metal material in cross section, be positioned at the spout centre of nozzle (7), parallel with spout, one jiao, triangle is towards spout.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520108996.8U CN204602461U (en) | 2015-02-13 | 2015-02-13 | A kind of line source electrode electrostatic powder coating device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520108996.8U CN204602461U (en) | 2015-02-13 | 2015-02-13 | A kind of line source electrode electrostatic powder coating device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204602461U true CN204602461U (en) | 2015-09-02 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520108996.8U Withdrawn - After Issue CN204602461U (en) | 2015-02-13 | 2015-02-13 | A kind of line source electrode electrostatic powder coating device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204602461U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104588226A (en) * | 2015-02-13 | 2015-05-06 | 北京京诚之星科技开发有限公司 | Linear source electrode static powder spraying device |
| CN108080239A (en) * | 2017-11-14 | 2018-05-29 | 广州擎天材料科技有限公司 | A kind of preparation method of environmental protection powder coating Coil Coating Products |
-
2015
- 2015-02-13 CN CN201520108996.8U patent/CN204602461U/en not_active Withdrawn - After Issue
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104588226A (en) * | 2015-02-13 | 2015-05-06 | 北京京诚之星科技开发有限公司 | Linear source electrode static powder spraying device |
| CN108080239A (en) * | 2017-11-14 | 2018-05-29 | 广州擎天材料科技有限公司 | A kind of preparation method of environmental protection powder coating Coil Coating Products |
| CN108080239B (en) * | 2017-11-14 | 2021-06-08 | 擎天材料科技有限公司 | Preparation method of environment-friendly powder coating color-coated sheet |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20150902 Effective date of abandoning: 20190809 |
|
| AV01 | Patent right actively abandoned |