CN208542452U - The painting device of metal powder coating - Google Patents
The painting device of metal powder coating Download PDFInfo
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- CN208542452U CN208542452U CN201820879852.6U CN201820879852U CN208542452U CN 208542452 U CN208542452 U CN 208542452U CN 201820879852 U CN201820879852 U CN 201820879852U CN 208542452 U CN208542452 U CN 208542452U
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- powder
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- fluidizing
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/10—Greenhouse gas [GHG] capture, material saving, heat recovery or other energy efficient measures, e.g. motor control, characterised by manufacturing processes, e.g. for rolling metal or metal working
Abstract
A kind of painting device of metal powder coating of the utility model, which is characterized in that there are several spray guns, spray gun is connected with the fluidizing bucket of powder supply, fluidizing bucket is divided into first class bucket and the second fluidizing bucket, and new powder is wherein only equipped in first class bucket, the new powder of accommodating and the useless powder of recycling in the second fluidizing bucket；Spray gun is divided into for the bottom spray gun of sprayed layer undercoat and the surface layer spray gun for spraying surface layer, which connects surface layer spray gun, which connects bottom spray gun.Utilize the device of the utility model, it recycles useless powder and direct use directly is simply mixed with row, need not move through mixing step repeatedly, so that the fluency of coating entirety greatly increases, working efficiency is improved, labor intensity of workers is also mitigated, worker does not need long period operation in harmful dust space.
Description
Technical field
The utility model relates to a kind of painting devices of metal powder coating, are suitable for various powdery paints in various coatings
Coating application on production equipment, especially the coating application of automatic application product line.
Background technique
With the reinforcement that global environmental protection is realized, powdery paints have it is economical, efficiently, environmental protection and save can (often claim 4E:
Economical, Efficient, Environmental, Energy Saving) the advantages that and developed rapidly, very much
Field replaces liquid coating to use completely.After the 1990s, as decorative powder comes out, powdery paints obtains pole
Big development.World powdery paints market is quickly incremented by with 15%~20% speed every year.Powdery paints has become coating
A mainstay in industry.
Powdery paints is that a kind of raw material being made of resin, pigment, filler and additive etc. is squeezed out by high temperature and crushed etc.
The powdered substance of process preparation.The most common coating process of powdery paints is the powder spray using electrostatic gun by fluidized state
Out, ionosphere of the powder between spray gun and substrate is charged and is adsorbed on substrate in the case where voltage drives.Adsorb the base of powder
Material passes through high-temperature baking, and powder is made to be formed by curing coating.
Production, coating and the application technology of ordinary powder coating are all highly developed, but metal powder coating technology
There are also to be improved.Present technology can't fully meet the demand of production.Metal powder coating is unlike metal liquid coating
It is reliable and stable like that, it is mainly manifested in metal powder coating and is difficult to accomplish steady production, color difference inevitably occurs in when coating, recycles powder
Can not use etc..Moreover, the higher problem of metallic pigments content is more.
Metal powder coating be difficult the reason of painting be because metallic pigments and powder are there are different chargeding performances,
Different intermiscibilities and different geometries.The production of metal powder coating is by metallic pigments and to have squeezed out and crushed life
The powder produced is mixed, metallic pigments unlike liquid coating by resin tight, but individualism.It is spraying
Tu Shi, metallic pigments will appear different chargeding performances, and the ability of powder is different in spraying, to color difference occur.To improve metal
The upper powder situation of pigment, people's utility model binding technology, be exactly by high-speed stirred heat, make metallic pigments and powder it
Between occur sticky, both alleviate the difference of charging property and geometry.The processed metal powder coating of binding technology, coating are steady
It is qualitative to greatly improve, so that the production of metal powder coating becomes to operate.On the other hand, metallic pigments supplier is to metal
Pigment carries out inorganic or organic-capping, improves the charging property of metallic pigments and the compatibility with resin, also largely
Metal powder coating is helped to improve the stability of coating.But no matter the technique for packing of binding technology or metallic pigments, all do not have
The series of problems of metal powder coating coating can be thoroughly solved, coating metal powdery paints is always a disaster of painting work
Thing.
The serial coating for how solving the problems, such as current metal powder coating is one very urgent to entire powder coating circle
Technical problem.Because metallochrome can not coating, the coating of many metal colors still has to using the big liquid at high cost of pollution
Body coating.If the problem of color difference problem and recycling powder that are able to solve metal powder coating can not use, to powder coating
Industry has very positive meaning.
The most important problem of metal powder coating is exactly using recycling powder bring color difference problem in fact.In fact, regardless of gold
Belong to whether pigment coats or whether bind, the coating color sprayed under the conditions of certain coating process should be the same
's.Even if spraying process will appear fluctuation, but as long as using the metallic pigments coated and carrying out effective binding processing, spray out
Coating color be substantially constant.Problem is that the metallic pigments ratio of recycling powder in many cases differs larger with original powder, is mixed
It just will appear color difference with being sprayed into original powder.If the content of metallic pigments is higher, it usually will appear the metal of recycling powder
Pigment ratio arranges excessively high situation, even will appear the phenomenon that coating does not form a film when serious.
Utility model content
The main purpose of the utility model is that providing a kind of painting device of new metal powder coating, it is able to solve back
Receive the color difference problem of powder, it will be able to substantially improve the stability of coating, reduce color difference.
The technological means of the utility model are as follows: a kind of painting device of metal powder coating, have several spray guns, spray gun with
The fluidizing bucket of powder supply is connected, and fluidizing bucket is divided into first class bucket and the second fluidizing bucket, is wherein only equipped in first class bucket
New powder, the new powder of the interior accommodating of the second fluidizing bucket and the useless powder of recycling；Spray gun is divided into for the bottom spray gun of sprayed layer undercoat and for spraying
The surface layer spray gun on surface layer, the first class bucket connect surface layer spray gun, which connects bottom spray gun.
The utility model has the following beneficial effects: recycling useless powder is directly simply mixed direct use with row, need not move through
Mixing step repeatedly, so that the fluency of coating entirety greatly increases, working efficiency is improved, and also mitigates worker's labor
Fatigue resistance, worker do not need long period operation in harmful dust space.
Detailed description of the invention
Fig. 1 is a kind of example structure schematic diagram of this subtraction unit.
Specific embodiment
Theoretically, identical technique coating should obtain identical coating color.It avoids when coating because recycling flour gold
Belong to the color difference that content difference generates, seeks to the color difference for solving the problems, such as recycling powder.That is, being applied if only using new powder
Dress, color difference are easy for controlling.It was noticed that automatic painting line, which often all employs, much carries out coating spray gun, before
Spray gun powder be absorbed after, the powder that subsequent spray gun sprays is covered topmost.Spray gun use has been admixed time if front is several
The powder of powder is received, and the powder of last or two (one group or two groups) spray guns only uses new powder, this makes it possible to guarantee to apply
The color of layer surface is uniform.
According to idea above, an individual fluidizing bucket is set, last or two spray gun powder supplies are dedicated for, and
Recycling powder pours into original fluidizing bucket, and it is several rifle powder supply to be dedicated for front.The powder of recycling powder has been admixed although having certain
Color difference, but because not on the surface, will not influence the color on surface.
The fluidizing bucket of new powder, which can be, to be independently arranged, and can also be structure as a whole with original fluidizing bucket, be sprayed the portion of new powder
Divide and only adds new powder, and another part addition recycling powder supply front is several rifle.
A kind of coating process of metal powder coating of the utility model, the useless powder in coating spraying process need to recycle again
It utilizes, focuses on, coating elder generation coating floor portions, then coating surface part, coating bottom therein portion are used when coating
The coating divided is used in mixed way using useless powder is recycled with new powder, and the coating of coating surface part does not use recycling using new powder completely
Useless powder.
When the useless powder of recycling and new powder are used in mixed way, recycle useless powder and be directly simply mixed with new powder, need not move through spy
Other ratio calculates and stirring directly uses.And needed to pass through in useless powder strict calculating when using a fluidizing bucket originally,
The stirring for mixing and carrying out the long period in proportion, then just can be used, so that the process of entire reuse is longer, in addition to shadow
It rings outside paint color, will also result in that the whole coating process time is longer, and working efficiency is relatively low.And use the utility model
Method after, recycle useless powder and direct use directly be simply mixed with row, mixing step repeatedly is needed not move through, so that coating
Whole fluency greatly increases, and working efficiency is improved, and labor intensity of workers is also mitigated, when worker does not need be longer
Between the operation in harmful dust space.
As shown in Figure 1, the utility model provides a kind of painting device of metal powder coating, there are several spray guns (two
More than), spray gun is connected with the fluidizing bucket of powder supply, and fluidizing bucket is divided into first class bucket 8 and the second fluidizing bucket 9, wherein second
Change and is only equipped with new powder in bucket 9, the new powder of accommodating and the useless powder of recycling in first class bucket 8.
Spray gun is divided into for the bottom spray gun of sprayed layer undercoat and the surface layer spray gun for spraying surface layer, second fluidizing bucket 9
Surface layer spray gun is connected, which connects bottom spray gun.
In the present embodiment, each side spray gun is sequentially the first spray gun by taking left side as an example from top to bottom there are four tools
4, the second spray gun 5, third spray gun 6 and the 4th spray gun 7, right side is identical, and details are not described herein, and spray gun is arranged on gun stand 2.
Here spray gun structure is similar with existing structure.
Profile 1 is mobile from the bottom up sequentially to pass through the 4th spray gun 7, third spray gun 6, the second spray gun 5 and the first spray gun 4,
In the present embodiment, the 4th spray gun 7 and third spray gun 6 are defined as bottom spray gun, and the second spray gun 5 and the first spray gun 4 are defined as table
Layer spray gun, second fluidizing bucket 9 connect the first spray gun 4 and the second spray gun 5, which connects third spray gun 6 and the 4th
Spray gun 7.
In addition, surface layer spray gun and defining for bottom spray gun can adjust according to demand, for example, it is also possible to which three spray guns are bottom
Layer spray gun, a spray gun are surface layer spray gun.If spray gun number is more, can even more be adjusted flexibly, it, can for example, by using ten spray guns
With three surface layer spray guns, seven bottom spray guns or two surface layer spray guns, eight bottom spray guns.
If pressing the Mass Calculation of spray coating powder amount, the coating content of general surface layer spray accounts for what 5-50% was sprayed using new powder, lower layer
Coating accounts for 50-95% using the powdery paints for recycling useless powder is mixed with, since the too thin possible color difference in surface layer can be problematic, also for
Cost consideration, the coating content of more preferable surface layer spray account for 10-30% using new powder, and the coating of lower layer's spray accounts for 70-90% using mixing
Recycle the powdery paints of useless powder.
In general, the mass percentage of metallic pigments is 0.01-30% (being free of) in metal powder coating.Metal powder
Coating includes aluminium powder pigment, pearlescent pigment and other metallic pigments.Coating includes polyester, polyurethane, epoxy, acrylic acid, fluorine carbon
Coating etc..Both include thermosetting powder coating, be also applied for thermoplastic powder coating.
The following are specific embodiments.
Embodiment one
Coating equipment is automatic spraying line, and two surface coating in spray room, every one side installs ten Golden Horse spray guns, on point
Lower two rows, each five.Coating workpiece be various aluminum profiles, 5 ms/min of coating linear velocity.Powdery paints is 6% aluminium of mass fraction
The silver polyester powdery paints of powder content.
In the suction powder that coating metal powder is by the ten of one side two finally sprayed of spray gun spray gun (up and down each one)
Pipe is inserted into an individual fluidizing bucket, which is known as new powder fluidizing bucket.Without using recycling powder in new powder fluidizing bucket, only add
Add new powder；Other 8 are inserted into the powder absorbing pipe of spray gun in original fluidizing bucket, which receives the powder of all recycling back and apply
Material, and constantly add new powder.The ten of another side are also so to handle spray gun and powder supply.
After in this way, in several hours spraying process, the metallochrome of coating is able to maintain uniformly, and color difference is very
It is small.
It is relatively free of the production using this method, the color for producing product in just beginning a few minutes is more normal, but with
The increase of powder is recycled, color changes.
Embodiment two
Such as embodiment one, the air intake duct that will finally spray four spray guns (up and down each two) is inserted into new powder fluidizing bucket, should
Fluidizing bucket only adds new powder；Remaining six is inserted into the powder absorbing pipe of spray gun in original recycling powder fluidizing bucket, which receives institute
There is recycling powder and adds new powder.The ten of another side are also so to handle spray gun and powder supply.
Spraying carries out several hours, and the metallochrome of coating is able to maintain uniformly, color difference very little.
Three-embodiment of embodiment 13
In following case column, it is all made of the coating process such as case column two.No matter metallic pigments contents height, coating product
Color is all very stable, and recycling powder can normal use.Before the technique using the utility model, metal powder coating
The color difference of coating would generally be very big, especially the powdery paints of high metal content, and recycling powder is because influence color difference and surface hair are thick
Etc. reasons, be not often available.
Embodiment 14
Coating equipment uses manual spray gun, and coating aluminum veneer or big aluminum profile are carried out in small spray room.Powder applies
Material uses the PVDF fluorocarbon powder paint of the golden pearly-lustre content of mass percentage 4.5%.First using the powder of doping recycling powder
End is sprayed, and after spraying about 3/4ths thickness, is changed other one spray gun for only using new powder, is thinly sprayed on surface
One layer.Coating avoids biggish color difference the result shows that metal coating surface color is very stable.
Claims (1)
1. a kind of painting device of metal powder coating, which is characterized in that have several spray guns, the fluidizing bucket phase of spray gun and powder supply
Connection, fluidizing bucket are divided into first class bucket and the second fluidizing bucket, new powder, the second fluidizing bucket are wherein only equipped in first class bucket
It is interior to accommodate new powder and recycle useless powder；
Spray gun is divided into for the bottom spray gun of sprayed layer undercoat and the surface layer spray gun for spraying surface layer, the first class bucket connection table
Layer spray gun, second fluidizing bucket connect bottom spray gun.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820879852.6U CN208542452U (en) | 2018-06-05 | 2018-06-05 | The painting device of metal powder coating |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820879852.6U CN208542452U (en) | 2018-06-05 | 2018-06-05 | The painting device of metal powder coating |
Publications (1)
| Publication Number | Publication Date |
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| CN208542452U true CN208542452U (en) | 2019-02-26 |
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ID=65420876
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| Application Number | Title | Priority Date | Filing Date |
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| CN201820879852.6U Active CN208542452U (en) | 2018-06-05 | 2018-06-05 | The painting device of metal powder coating |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110560308A (en) * | 2018-06-05 | 2019-12-13 | 广东兴发铝业（河南）有限公司 | Method and device for coating metal powder coating |
-
2018
- 2018-06-05 CN CN201820879852.6U patent/CN208542452U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110560308A (en) * | 2018-06-05 | 2019-12-13 | 广东兴发铝业（河南）有限公司 | Method and device for coating metal powder coating |
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