CN101961705A - Vertical spraying process for electrostatic spraying gun - Google Patents
Vertical spraying process for electrostatic spraying gun Download PDFInfo
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- CN101961705A CN101961705A CN 201010277376 CN201010277376A CN101961705A CN 101961705 A CN101961705 A CN 101961705A CN 201010277376 CN201010277376 CN 201010277376 CN 201010277376 A CN201010277376 A CN 201010277376A CN 101961705 A CN101961705 A CN 101961705A
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Abstract
The invention discloses a vertical spraying process for an electrostatic spraying gun, which comprises the following steps of: loading a workpiece, spraying primer on the workpiece by using a matrix-arrayed electrostatic spraying gun set or a DISK rotating spraying disk, and leveling after the spraying is finished; spraying finish paint on the workpiece by using the matrix-arrayed electrostatic spraying gun set, and leveling after the spraying is finished; and spraying finish varnish on the workpiece by using the matrix-arrayed electrostatic spraying gun set, leveling after the spraying is finished, drying and cooling to room temperature, unloading the workpiece and packaging. The vertical spraying process has the advantages of high production efficiency, flat paint film and uniform sprayed paint without W-shaped sprayed paint; and in a process of spraying, the workpiece can not swing, a concave part of the workpiece needs not to be repaired with the paint, and a convex part of the workpiece does not sag, therefore, the production efficiency is high, and the labor cost is saved without paint repair.
Description
Technical field
The present invention relates to a kind of spraying coating process, particularly a kind of electrostatic gun vertical spraying technology.
Background technology
Spraying is by spray gun or dish formula atomizer, by pressure or centrifugal force, is dispersed into evenly and fine fog, is applied over the coating process on coated article surface.
Present conventional spraying method mainly contains horizontal spraying method and Disk vertical spraying (perhaps being called the spraying of Ω vertical disc) method, and horizontal spraying method then has following shortcoming: one, production efficiency is low; Two, need fill spray, cause " W " phenomenon promptly to spray paint inhomogeneous in the spraying easily; Three, painting rate is lower; Four, need 12-13 touch-up paint worker on a spray-painting production line, increased human cost, five, in when spraying bigger because many spray guns are lined up a line simultaneously to Workpiece painting to the impact of workpiece, workpiece easily swing cause spray paint irregular.
With respect to horizontal spraying, Disk vertical spraying production efficiency is higher, the DISK spraying is the centrifugal force that utilizes the high speed rotation of spray dish to produce, the coating drop of atomizing is thrown out, owing to have voltage between spray dish and the workpiece, the coating droplet of throwing out just is attracted on the workpiece again, just but its shortcoming be: one, after the spraying, cause the phenomenon of metal blackout easily, influence the overall appearance of workpiece; Two, the recess of workpiece is because the deficiency of spraying paint need fill spray, and because the height of escalator reaches 8.5m, the workpiece of hanging is up to 6-7 rice, and the difficulty that manually fills spray is very big; If three workpiece that adopt are profile shapes, under the effect of electric field force, the more lacquer of the protuberance branch of workpiece absorption has just produced the sagging phenomenon of coating with lacquer, and influences the workpiece outward appearance.
Summary of the invention
The purpose of this invention is to provide a kind of electrostatic gun vertical spraying technology.
The technical solution used in the present invention is:
The electrostatic gun group that a kind of electrostatic gun vertical spraying technology, spray equipment have adopted matrix form to arrange, workpiece be vertical vertical hanging on carrier chain, its spraying process comprises following step:
1) go up workpiece, the electrostatic gun group or the DISK rotation that utilize matrix form to arrange are sprayed dish to Workpiece painting priming paint, after having sprayed, and levelling;
2) utilize electrostatic gun group that matrix form arranges to the Workpiece painting finish paint, after having sprayed, levelling;
3) utilize electrostatic gun group that matrix form arranges to the Workpiece painting coating varnish, after spray, levelling, dry and be cooled to room temperature, workpiece is also packed down.
The electrostatic gun group that matrix form is arranged has the two rows spray gun, and same row's spray gun spacing is 400-550mm, and the two rows spacing is 400-500mm, and the two rows spray gun is staggered, above a row spray gun be positioned at next arrange in the middle of adjacent two spray guns directly over.
The spray gun of the electrostatic gun group that matrix form is arranged and the surface of workpiece are vertical, every spray gun are jetted over against a workpiece, and the distance between nozzle and the surface of the work is 250-300mm.
The electrostatic gun group that matrix form is arranged places on the lift, and during spraying, the electrostatic gun group that matrix form is arranged moves up and down sprays paint.
The electrostatic gun and the voltage between the workpiece of the electrostatic gun group that matrix form is arranged are 60-90KV.
The atomization air pressure of the spray gun of the electrostatic gun group that matrix form is arranged is 0.1-0.15MPa.
The moulding air pressure of the spray gun of the electrostatic gun group that matrix form is arranged is 0.09-0.14MPa.
When the spray gun of the electrostatic gun group that matrix form is arranged sprayed, every was the spray gun discharge-amount 35-140cc/min.
The electrostatic gun group speed of moving up and down that matrix form is arranged is 40-60m/min.
Carrier chain moves horizontally, and its translational speed is 1.5-2.5m/min, and during spraying, workpiece is transferred chain and takes spraying position over against spray gun to, and after having sprayed, workpiece is transferred chain again and takes away.
The invention has the beneficial effects as follows: the production efficiency height, paint film is smooth, spray paint evenly, irregular " W " phenomenon that can not occur spraying paint in the process of spraying, the phenomenon of workpiece swing can not occur, the recess of workpiece does not need touch-up paint, the projection of workpiece can not produce the sagging phenomenon, the production efficiency height, thus do not need touch-up paint to save human cost.
Description of drawings
Fig. 1-the 3rd, the design sketch after workpiece sprays paint.
The schematic diagram that cooperates of Fig. 4 lift and workpiece.
Among Fig. 4,1 expression carrier chain, the workpiece that 2 expressions are hung, 3 expression lifts, the electrostatic gun group that 4 representing matrix formulas are arranged.
The specific embodiment
Be further described with embodiment below.
Embodiment 1
1) goes up workpiece, select the priming paint UCT51742T of PPG company for use, it is 40m/min that adjusting makes the speed of moving up and down of DISK rotation spray dish, the speed of moving horizontally of carrier chain is 1.5m/min, and the voltage between rotation spray dish and the workpiece is 60KV, the rotary speed 14000RPM of spray dish, single shower nozzle discharge-amount is 600cc/min, utilize DISK rotation spray dish to Workpiece painting priming paint, after having sprayed, levelling;
2) select the finish paint UCT40577XL of PPG company for use, it is 40m/min that adjusting makes the speed of moving up and down of the electrostatic gun group of matrix form arrangement, the speed of moving horizontally of carrier chain is 1.5m/min, voltage between electrostatic gun and the workpiece is 60KV, and atomization air pressure is 0.1MPa, and moulding air pressure is 0.14MPa, every is the spray gun discharge-amount 80cc/min, utilize the spray gun group to the Workpiece painting finish paint, after having sprayed, levelling;
3) select the finishing varnish UC51132T of PPG company for use, it is 40m/min that adjusting makes the speed of moving up and down of the electrostatic gun group of matrix form arrangement, the speed of moving horizontally of carrier chain is 1.5m/min, voltage between electrostatic gun and the workpiece is 85KV, and atomization air pressure is 0.1MPa, and moulding air pressure is 0.12MPa, every is the spray gun discharge-amount 35cc/min, utilize the spray gun group to the Workpiece painting finishing varnish, after having sprayed, levelling, dry and be cooled to room temperature, down part and packing.
Embodiment 2
1) goes up workpiece, select the priming paint KY1C17839 of VALSPAR company for use, it is 60m/min that adjusting makes the speed of moving up and down of DISK rotation spray dish, the speed of moving horizontally of carrier chain is 2.5m/min, and the voltage between rotation spray dish and the workpiece is 90KV, the rotary speed 16000RPM of spray dish, single shower nozzle discharge-amount is 1000cc/min, utilize DISK rotation spray dish to Workpiece painting priming paint, after having sprayed, levelling;
2) select the finish paint EC-DG-36095A of VALSPAR company for use, it is 60m/min that adjusting makes the speed of moving up and down of the electrostatic gun group of matrix form arrangement, the speed of moving horizontally of carrier chain is 2.5m/min, voltage between electrostatic gun and the workpiece is 85KV, and atomization air pressure is 0.13MPa, and moulding air pressure is 0.09MPa, every is the spray gun discharge-amount 140cc/min, utilize the spray gun group to the Workpiece painting finish paint, after having sprayed, levelling;
3) select the finishing varnish KC3E99704 of VALSPAR company for use, it is 60m/min that adjusting makes the speed of moving up and down of the electrostatic gun group of matrix form arrangement, the speed of moving horizontally of carrier chain is 2.5m/min, voltage between electrostatic gun and the workpiece is 60KV, and atomization air pressure is 0.11MPa, and moulding air pressure is 0.14MPa, every is the spray gun discharge-amount 60cc/min, utilize the spray gun group to the Workpiece painting finishing varnish, after having sprayed, levelling, dry and be cooled to room temperature, down part and packing.
Embodiment 3
1) goes up workpiece, select the priming paint YD130L of KGE company for use, it is 55m/min that adjusting makes the speed of moving up and down of DISK rotation spray dish, the speed of moving horizontally of carrier chain is 2m/min, and the voltage between rotation spray dish and the workpiece is 75KV, the rotary speed 15000RPM of spray dish, single shower nozzle discharge-amount is 850cc/min, utilize DISK rotation spray dish to Workpiece painting priming paint, after having sprayed, levelling;
2) select the finish paint SKC01-18261 of KGE company for use, it is 55m/min that adjusting makes the speed of moving up and down of the electrostatic gun group of matrix form arrangement, the speed of moving horizontally of carrier chain is 2m/min, voltage between electrostatic gun and the workpiece is 90KV, atomization air pressure is 0.15MPa, and moulding air pressure is 0.1MPa, and every is the spray gun discharge-amount that 120cc/min utilizes the spray gun group to the Workpiece painting finish paint, after having sprayed, levelling;
3) select the finishing varnish YJ2443 of KGE company for use, it is 55m/min that adjusting makes the speed of moving up and down of the electrostatic gun group of matrix form arrangement, the speed of moving horizontally of carrier chain is 2m/min, voltage between electrostatic gun and the workpiece is 90KV, and atomization air pressure is 0.15MPa, and moulding air pressure is 0.09MPa, every is the spray gun discharge-amount 50cc/min, utilize the spray gun group to the Workpiece painting finishing varnish, after having sprayed, levelling, dry and be cooled to room temperature, down part and packing.
Embodiment 4
1) goes up workpiece, select the priming paint YD130L of KGE company for use, it is 50m/min that adjusting makes the speed of moving up and down of the electrostatic gun group of matrix form arrangement, and the speed of moving horizontally of carrier chain is 1.8m/min, and the voltage between electrostatic gun and the workpiece is 85KV, atomization air pressure is 0.15MPa, moulding air pressure is 0.1MPa, and every is the spray gun discharge-amount 80cc/min, utilizes the spray gun group to Workpiece painting priming paint, after having sprayed, levelling;
2) select the finish paint SKC01-18261 of KGE company for use, it is 55m/min that adjusting makes the speed of moving up and down of the electrostatic gun group of matrix form arrangement, the speed of moving horizontally of carrier chain is 1.8m/min, voltage between electrostatic gun and the workpiece is 70KV, and atomization air pressure is 0.13MPa, and moulding air pressure is 0.1MPa, every is the spray gun discharge-amount 95cc/min, utilize the spray gun group to the Workpiece painting finish paint, after having sprayed, levelling;
3) select the finishing varnish YJ2443 of KGE company for use, it is 50m/min that adjusting makes the speed of moving up and down of the electrostatic gun group of matrix form arrangement, the speed of moving horizontally of carrier chain is 1.8m/min, voltage between electrostatic gun and the workpiece is 75KV, and atomization air pressure is 0.12MPa, and moulding air pressure is 0.1MPa, every is the spray gun discharge-amount 45cc/min, utilize the spray gun group to the Workpiece painting finishing varnish, after having sprayed, levelling, dry and be cooled to room temperature, down part and packing.
The finish paint spraying effect is as shown in table 1 below among the embodiment 1-4.
Table 1 electrostatic gun vertical spraying technology (finish paint) spraying effect
| Embodiment | Mean square number (m 2/L) | Average film thickness (μ m) | Painting rate |
| 1 | 5.62 | 32 | 77.87％ |
| 2 | 6.86 | 25 | 79.55％ |
| 3 | 6.23 | 28 | 78.26％ |
| 4 | 6.78 | 26 | 78.92％ |
Wherein, the mean square number refers to the area that every liter of coating is coated with, and painting rate refers to spray attached to the living coating content ÷ of surface of the work the result of the living coating content gained that is consumed.As can be seen from Table 1, no matter be spraying PPG coating or VALSPAR coating or KGE coating, use electrostatic gun vertical spraying technology spray paint, painting rate all is higher than 77%, in production practices, horizontal spraying or DISK spraying generally can't reach so high painting rate, in addition, and after the application, average film thickness＜32 μ m, rete is thinner, and can find out from Fig. 1-3, on lacquer be again very full; The mean square number average is higher than 5.5m
2/ L, promptly one liter of coating area that can spray is bigger, and DISK spraying and horizontal spraying generally also can't reach high mean square number like this.
From Fig. 1-3, can find out, electrostatic gun vertical spraying effective, paint film is smooth, sprays paint evenly, " W " phenomenon of spraying paint irregular do not occur, and the corner of workpiece and groove spray paint evenly, and also the no sag phenomenon need not touch-up paint.Owing to adopted the electrostatic gun group, spraying is that the dispersion moulding effect by voltage between spray gun and the workpiece and air-flow is applied to the coating droplet on the workpiece, and every spray gun is jetted over against a workpiece, promptly have only the material of a spray gun ejection to act on the workpiece, workpiece can not swung, so coating can evenly be sprayed on the concavo-convex place of workpiece, and the spray efficiency height, be specially adapted to the spraying of profile shapes.
Claims (10)
1. electrostatic gun vertical spraying technology is characterized in that: the electrostatic gun group that spray equipment has adopted matrix form to arrange, workpiece be vertical vertical hanging on carrier chain, its spraying process comprises following step:
1) go up workpiece, the electrostatic gun group or the DISK rotation that utilize matrix form to arrange are sprayed dish to Workpiece painting priming paint, after having sprayed, and levelling;
2) utilize electrostatic gun group that matrix form arranges to the Workpiece painting finish paint, after having sprayed, levelling;
3) utilize electrostatic gun group that matrix form arranges to the Workpiece painting coating varnish, after spray, levelling, dry and be cooled to room temperature, workpiece is also packed down.
2. a kind of electrostatic gun vertical spraying technology according to claim 1, it is characterized in that: the electrostatic gun group that matrix form is arranged has the two rows spray gun, same row's spray gun spacing is 400-550mm, the two rows spacing is 400-500mm, the two rows spray gun is staggered, above a row spray gun be positioned at next arrange in the middle of adjacent two spray guns directly over.
3. a kind of electrostatic gun vertical spraying technology according to claim 1, it is characterized in that: the spray gun of the electrostatic gun group that matrix form is arranged and the surface of workpiece are vertical, every spray gun is jetted over against a workpiece, the distance between nozzle and the surface of the work is 250-300mm.
4. a kind of electrostatic gun vertical spraying technology according to claim 1 is characterized in that: the electrostatic gun group that matrix form is arranged places on the lift, and during spraying, the electrostatic gun group that matrix form is arranged moves up and down sprays paint.
5. a kind of electrostatic gun vertical spraying technology according to claim 1 is characterized in that: the electrostatic gun and the voltage between the workpiece of the electrostatic gun group that matrix form is arranged are 60-90KV.
6. a kind of electrostatic gun vertical spraying technology according to claim 1 is characterized in that: the atomization air pressure of the spray gun of the electrostatic gun group that matrix form is arranged is 0.1-0.15MPa.
7. a kind of electrostatic gun vertical spraying technology according to claim 1 is characterized in that: the moulding air pressure of the spray gun of the electrostatic gun group that matrix form is arranged is 0.09-0.14MPa.
8. a kind of electrostatic gun vertical spraying technology according to claim 1 is characterized in that: when the spray gun of the electrostatic gun group that matrix form is arranged sprayed, every was the spray gun discharge-amount 35-140cc/min.
9. a kind of electrostatic gun vertical spraying technology according to claim 4 is characterized in that: the electrostatic gun group speed of moving up and down that matrix form is arranged is 40-60m/min.
10. a kind of electrostatic gun vertical spraying technology according to claim 1, it is characterized in that: carrier chain moves horizontally, and its translational speed is 1.5-2.5m/min, during spraying, workpiece is transferred chain and takes spraying position over against spray gun to, and after having sprayed, workpiece is transferred chain again and takes away.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010277376 CN101961705B (en) | 2010-09-08 | 2010-09-08 | Vertical spraying process for electrostatic spraying gun |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010277376 CN101961705B (en) | 2010-09-08 | 2010-09-08 | Vertical spraying process for electrostatic spraying gun |
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| CN101961705A true CN101961705A (en) | 2011-02-02 |
| CN101961705B CN101961705B (en) | 2013-03-27 |
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| CN 201010277376 Active CN101961705B (en) | 2010-09-08 | 2010-09-08 | Vertical spraying process for electrostatic spraying gun |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102755946A (en) * | 2011-04-29 | 2012-10-31 | 刘州 | Painting process for metal spring toys |
| CN104324851A (en) * | 2014-11-10 | 2015-02-04 | 江苏亨特宏业重工有限公司 | Electrostatic spraying production line of aluminum material |
| CN110614208A (en) * | 2019-09-30 | 2019-12-27 | 杭州泛亚卫浴股份有限公司 | Spraying method of self-cleaning coating for realizing rich colors of bathroom products |
| CN114700195A (en) * | 2022-03-11 | 2022-07-05 | 百家丽（中国）照明电器有限公司 | Workpiece surface electrostatic spraying device and process |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101249487A (en) * | 2008-04-01 | 2008-08-27 | 天津市汉沽区茶西制桶厂 | Vertical type steel barrel jet printing system |
| CN201195149Y (en) * | 2008-05-13 | 2009-02-18 | 中国北车集团大同电力机车有限责任公司 | Spray painting apparatus for top cover of motorcycle |
| CN101491799A (en) * | 2009-01-15 | 2009-07-29 | 济南轻骑摩托车股份有限公司 | Paint-coating technique |
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2010
- 2010-09-08 CN CN 201010277376 patent/CN101961705B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101249487A (en) * | 2008-04-01 | 2008-08-27 | 天津市汉沽区茶西制桶厂 | Vertical type steel barrel jet printing system |
| CN201195149Y (en) * | 2008-05-13 | 2009-02-18 | 中国北车集团大同电力机车有限责任公司 | Spray painting apparatus for top cover of motorcycle |
| CN101491799A (en) * | 2009-01-15 | 2009-07-29 | 济南轻骑摩托车股份有限公司 | Paint-coating technique |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102755946A (en) * | 2011-04-29 | 2012-10-31 | 刘州 | Painting process for metal spring toys |
| CN104324851A (en) * | 2014-11-10 | 2015-02-04 | 江苏亨特宏业重工有限公司 | Electrostatic spraying production line of aluminum material |
| CN110614208A (en) * | 2019-09-30 | 2019-12-27 | 杭州泛亚卫浴股份有限公司 | Spraying method of self-cleaning coating for realizing rich colors of bathroom products |
| CN114700195A (en) * | 2022-03-11 | 2022-07-05 | 百家丽（中国）照明电器有限公司 | Workpiece surface electrostatic spraying device and process |
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| CN101961705B (en) | 2013-03-27 |
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