CN202332782U - Plasma spraying nozzle and large format plasma surface treating machine using spraying nozzle - Google Patents
Plasma spraying nozzle and large format plasma surface treating machine using spraying nozzle Download PDFInfo
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- CN202332782U CN202332782U CN2011204321802U CN201120432180U CN202332782U CN 202332782 U CN202332782 U CN 202332782U CN 2011204321802 U CN2011204321802 U CN 2011204321802U CN 201120432180 U CN201120432180 U CN 201120432180U CN 202332782 U CN202332782 U CN 202332782U
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Abstract
The utility model provides a plasma spraying nozzle and a large format plasma surface treating machine using the spraying nozzle. The spraying nozzle comprises an air bells knife, a grounding electrode, an inner electrode and a high voltage power supply, wherein an air gap penetrates in the air bells knife along the length direction; the grounding electrode is installed on the lower portion of the air bells knife, an air gap is disposed in the grounding electrode, the air gap in the air bells blade extends towards the lower portion of the air bells blade and are communicated with the air gap in the grounding electrode, a plasma treating area is arranged below the grounding electrode; the inner electrode is installed in the grounding electrode along the length direction of the grounding electrode, dielectrics are arranged on the outer side of the inner electrode, a plasma electric discharging area is arranged between the dielectrics and the inner wall of the grounding electrode, the air gap in the grounding electrode, the plasma electric discharging area and the plasma treating area are sequentially communicated with each other; the high voltage power supply is connected with the inner electrode. The plasma spraying nozzle and the large format plasma surface treating machine using the spraying nozzle are strong in processing strength, time-long in effect holding and suitable for the majority of packing materials such as metals, films and leather and the like, and are large in format (100millimeters to 2000 millimeters) and capable of achieving batch type or online type processing.
Description
Technical field
The utility model relates to a kind of print surface treatment facility, particularly a kind of plasma shower nozzle and use the large format plasma surface treatment machine of this shower nozzle.
Background technology
Along with improving constantly of modern life level; People are also increasingly high to the pursuit of U.S.A, and aesthetic consciousness is also in synchronous lifting, and printed decoration is progressively extended in the various daily necessities by paper, film; As: leather, degradable regenerative version, adhesive sticker, printing of metal or the like.Existing print surface treatment technology can't satisfy the requirement of above-mentioned material surface-treated, exists and handles that intensity is weak, the effect retention time is short, can't large format handles or can't carry out the surface-treated deficiency at all.
The print surface treatment technology is to grow up for the problem that solves plastic film surface printing, coating poor adhesive force at first.Common plastic film stock is mainly polypropylene (PP), polyethylene (PE), polyvinyl chloride (PVC), polyester (PET) etc.; Its surface characteristic has very big difference because of the chemical stability of polar group, crystallization degree and the plastics of molecular structure base material etc. is different, and these factors are very big to the adhesion fastness influence of printing ink layer.PS (polystyrene), PVC to belonging to polar structure need not do surface preparation before the printing, but are nonpolar PP, PE, PET etc. for its surface texture; Its chemical stability is high; Be difficult for being permeated and dissolve by most of printing ink solvent, with ink printing combine fastness very low, so must the process surface treatment before printing; Make the plastic surface layer activation generate new chemical bond and make surface coarsening, thus improve printing ink and film surface combine the adhesion fastness; Make simultaneously in some pellet process, mixed the auxiliary agent of some, additives, opening agent by demands of different; After inhaling the film typing, these auxiliary agents just float over face, form the invisible oil reservoir of naked eyes; These oil reservoirs are disadvantageous fully to printing, and it is bonding that it is difficult for face, and adhesive force descends; Therefore the thin-film material that has these oil reservoirs just must remove the grease on film top layer through surface treatment, improves the attachment fastness of printing ink, coating.
Present print surface treatment technology mainly contains following several kinds of processing modes:
1, flame treatment
Flame-treating process is that air heat is formed plasma to high temperature (3000 ° more than the F), and material surface is produced cleaning, activation.Flame activates airborne oxygen molecule, makes them form the polar molecule that has the carbon molecule on the surface of material.The increase of surface molecular polarity and oxidation have reduced the surface tension of plastics, have increased the absorption affinity of material matrix to printing ink.
Flame treatment once was a method most popular when handling polyethylene, polypropylene and any surface thickness and surpassing 10 millimeters plastics.But today, flame treatment only keeps the part as mold or blowing mould technology, is used for the surface treatment (like the carton of dress milk) of the material of paper mold and packaged food, beverage in addition.
Its shortcoming is to handle space to equipment with environmental requirement is all higher, coefficient of safety is low, handles intensity and is not easy to control, and can't realize online online process.
2, corona treatment
Corona treatment is on the needle electrode on plate electrode opposite, to be added with positive voltage; When voltage is elevated to certain numerical value; The luminous component that stretches out from needle point just can touch plate electrode, and is divided into the luminous component of many wire, and they all are in the blink states of not stopping; These luminous components are exactly plasma, material surface are produced the effect of cleaning, activation.Corona plasma makes frosting produce radical reaction and makes the polymer generation crosslinked; The surface roughening also increases its wetting to polar solvent; These plasmas are got into by its molecular structure of surface breakdown of seal body by electric shock and osmosis; And then with the surface molecular oxidation and the polarization that are processed, activating surface, so that increase the surperficial adhesive ability of stock.
Corona technology device miniaturization, one-touch characteristics can satisfy the requirement of online process fully, and nowadays, nearly all plastic film, paper and metal foil material all adopt corona method to handle.But the shortcoming that its exists be handle weak strength, effect retention time short, can't be to Treatment of Metal Surface, and two-sided the processing simultaneously increases energy consumption.
3, jet plasma process for treating surface
The jet plasma handling system partly is made up of plasma generator, gas transfer pipeline and plasma shower nozzle etc.Plasma generator produces the high voltagehigh frequency energy, in the nozzle steel pipe, forms cold plasma discharge generation low temperature plasma, by compressed air plasma is sprayed to surface of the work; When meet in plasma and object being treated surface, produced cleaning, activation, corrasion, the surface has obtained cleaning; Removed hydrocarbon class dirt; Like grease, auxiliary additive etc., according to material composition, its surface molecular chain structure has obtained change.Set up free groups such as hydroxyl, carboxyl, these groups have its bonding effect of promotion to various coating materials, have obtained optimization bonding when using with painting.
The jet plasma process for treating surface is popular in the market surface processing equipment, and existing model is four types of processors of wide cut 5mm, 15mm, 50mm, 100mm, and wherein 50mm and 100mm breadth belong to rotary processor.This treatment facility has the advantage of handling intensity height, effect retention time length, single face high speed processing, satisfying the profiled piece processing, but that it also exists processing area is little, and the large format processing cost, huge shortcoming consumes energy.
In view of this, for solving all deficiencies in the existing print surface treatment technology, the design people is based on the research and development of association area, and constantly test and improvement of process, and then the generation of the utility model is arranged.
Summary of the invention
The purpose of the utility model provides that a kind of processing intensity is strong, the effect retention time long, be suitable for most of packaging material such as metal, film, leather; Large format (100mm-2000mm) can be realized the plasma shower nozzle that batch (-type) or on line formula are handled and use the large format plasma surface treatment machine of this shower nozzle.
For reaching above-mentioned purpose, the utility model provides a kind of plasma shower nozzle, and it comprises:
Be penetrated with air gap along its length direction in the air knife, air knife; Grounding electrode is installed on the below of air knife, also is provided with air gap in the grounding electrode, and the air gap in the said air knife extends and is connected with air gap in the grounding electrode to the below of air knife, and the bottom of said grounding electrode is provided with the Cement Composite Treated by Plasma district;
Interior electrode; Its length direction along grounding electrode is installed in the grounding electrode; The outside of interior electrode is provided with dielectric, is plasma discharge region between the inwall of dielectric and grounding electrode, and air gap, plasma discharge region in the said grounding electrode are communicated with the Cement Composite Treated by Plasma district successively; And
High voltage source is connected with said interior electrode.
Described plasma shower nozzle, wherein, air knife connects air accumulator or air compressor machine, the even air curtain of generation feeds in the electrode air gap, can be in grounding electrode air gap direction in the grounding electrode produce the top-down air-flow.
Described plasma shower nozzle, wherein, said interior electrode is hollow copper tubing or stainless steel tube electrode, and the external diameter of interior electrode is 10-50mm, and interior electrode wall thickness is 1-5mm; The inboard space of interior electrode is used to the cooling water that circulates.
Described plasma shower nozzle, wherein, said dielectric is a solid dielectric, and dielectric substance is a pottery, and dielectric thickness is 0.5-3mm.
Described plasma shower nozzle, wherein, the arranged beneath of said grounding electrode has the base material that is processed.
Described plasma shower nozzle, wherein, the material of grounding electrode is a stainless steel.
Described plasma shower nozzle wherein, has the discharge spacing between interior electrode and the grounding electrode, the discharge spacing is 1-5mm, and the width of air gap in the grounding electrode is 2-5 times of this discharge spacing; The Cement Composite Treated by Plasma district has spout, and this width of jet is 1-2 times of this discharge spacing, and the effective length of spout is 100-2000mm.
Described plasma shower nozzle, wherein, said in the length of electrode and grounding electrode all at least greater than the effective length 10-20mm of the air gap of air knife,
The utility model also provides a kind of large format plasma surface treatment machine of using above-mentioned plasma shower nozzle; Wherein, Plasma shower nozzle and fixed platform are installed on the frame, and the spout of plasma shower nozzle is towards fixed platform, and the single sheet type base material is fixed on the fixed platform; The plasma shower nozzle more renews base material with preset velocity scanning base material after having scanned.
The utility model provides a kind of large format plasma surface treatment machine of using above-mentioned plasma shower nozzle again; Wherein, Plasma shower nozzle and live-roller are installed on the frame; The roll type base material of the spout of plasma shower nozzle on live-roller, said plasma shower nozzle is fixed, and live-roller transmits the roll type base material with pre-set velocity.
The beneficial effect of the utility model is:
1, processing intensity is big.The surface processing equipment of the utility model adopts the dielectric barrier discharge principle, and strength of discharge is higher than corona discharge far away, and the energy of the electronics that it comprises can reach 5-10eV, and active particle kind, quantity all are the several times of corona discharge.
2, processing area is big.Dielectric barrier discharge is realized processing procedure stabilisation, homogenizing, large tracts of landization.
3, handle longer duration.The surface processing equipment of the utility model is big to surface treatment intensity; Thicker active layer in material surface energy formation; The destruction that the active layer densification is not vulnerable to material such as oxygen, dust in the air loses activity; Usually the material surface activity after jet plasma is handled can be kept two weeks or one month even longer time.
4, single face is handled.Jet plasma is to handle with the form of single face to material, reduced the danger that the corona double treatment causes the material roll banding, handles power consumption simultaneously and reduces by half, and the ozone of generation reduces by half.
Description of drawings
Fig. 1 is the schematic perspective view of plasma shower nozzle;
Fig. 2 is the sectional view of plasma shower nozzle;
Fig. 3 is the sketch map of batch (-type) plasma surface treatment machine;
Fig. 4 is the sketch map of on line formula plasma surface treatment machine.
Description of reference numerals: 1-control panel; 2-plasma shower nozzle; 3-Cement Composite Treated by Plasma district; The 4-fixed platform; The 5-frame; The 6-power cabinet; The 7-air-flow; The 8-grounding electrode; The 9-dielectric; The 10-cooling water; The 11-plasma discharge region; Electrode in the 12-; The 13-high voltage source; 14-Cement Composite Treated by Plasma district; The 15-base material; The 16-air knife; The 17-plasma jet; The direction of 18-shower nozzle scanning; 19-roll type base material; The 20-live-roller; 21-single sheet type base material; Width of air gap in the A-grounding electrode; The discharge spacing of electrode and grounding electrode in the B-; The width of jet in C-Cement Composite Treated by Plasma district: the effective length of D-spout.
Embodiment
About the utility model is the application target that reaches above-mentioned and effect and the technological means that adopted, enumerate preferable feasible embodiment, and shown in the conjunction with figs., details are as follows at present:
At first as depicted in figs. 1 and 2, be respectively the schematic perspective view and the sectional view of plasma shower nozzle.Described plasma shower nozzle mainly comprises: high voltage source 13, air knife 16, interior electrode 12 and grounding electrode 8.
Said air knife 16 is strip, is installed on the top of the grounding electrode 8 that is all strip.Be penetrated with air gap 161 along its length direction in the air knife 16, said air gap 161 extends and is connected with air gap in the grounding electrode 8 to the below of air knife 16.Air knife 16 directly connects air accumulator or air compressor machine; The even air curtain that produces feeds in the electrode air gap; Can be grounding electrode 8 in air gap direction in the grounding electrode produce top-down air-flow 7, air knife 16 is used to produce air curtain, forms simultaneously very thin high strength, the impact air curtain of air flow; Therefore air knife 16 provides linear uniform air flow for the plasma shower nozzle, and the effective length of air knife 16 air gaps 161 can be 100-2000mm.Pressure >=the 5bar of air knife 16 sources of the gas.
Wherein, said high voltage source 13 is a high frequency pulse power supply, and the voltage of 10-30KV is provided, and frequency is 10-30KHz, can be the power supply (referring to Deutsche Bundespatent 4235766-C1) of corona discharge.
The length of electrode 12 and grounding electrode 8 is all at least greater than the effective length 10-20mm of air knife 16 air gaps 161 in said; When interior electrode 12 assembles with grounding electrode 8; The electrode two ends add the insulating material packing ring, and gasket materials can be materials such as silica, aluminium oxide, tetrafluoroethene.The effect of packing ring is with the both sides sealing of interior electrode 12 with grounding electrode 8 on the one hand, is the spacing B that fixedly discharges between the two poles of the earth on the other hand, and the spacing of promptly discharging B is: 1-5mm, processing and the assembling deviation＜0.05-0.1mm of discharge spacing B.
The material of grounding electrode 8 is a stainless steel, and the width of air gap A in the grounding electrode 8 is 2-5 a times of discharge spacing B, and width of jet C is 1-2 times of discharge spacing B.Electrode 12 connects high voltage source 13 in said, and grounding electrode 8 ground connection eliminate safe hidden trouble.
The effective length D of spout is 100-2000mm.
As shown in Figure 3 again, be the sketch map of batch (-type) plasma surface treatment machine.Plasma shower nozzle 2 and fixed platform 4 are installed on the frame 5, and the spout of plasma shower nozzle 2 is towards fixed platform 4, and the zone that plasma shower nozzle 2 can operation is Cement Composite Treated by Plasma district 3.Control panel 1 also is installed on the frame 5, and is provided with power cabinet 6.
In practical operation, single sheet type base material 21 is fixed on the fixed platform 4, and plasma shower nozzle 2 is with direction (direction 18 of shower nozzle scanning, vertical with the length direction of shower nozzle) the scanning base material of preset speed arrow in the figure, and taking-up more renews base material after scan.
As shown in Figure 4 at last, be the sketch map of on line formula plasma surface treatment machine.Plasma shower nozzle 2 and live-roller 20 are installed on the frame 5, the roll type base material 19 that be processed of the spout of plasma shower nozzle 2 on live-roller 20, and the zone that plasma shower nozzle 2 can operation is Cement Composite Treated by Plasma district 3.Control panel 1 also is installed on the frame 5, and is provided with power cabinet 6.
In practical operation, it is fixing that plasma shower nozzle 2 is set, and the roll type base material is transmitted with pre-set velocity.
In sum, the utlity model has following advantage:
1, processing intensity is big.The surface processing equipment of the utility model adopts the dielectric barrier discharge principle, and strength of discharge is higher than corona discharge far away, and the energy of the electronics that it comprises can reach 5-10eV, and active particle kind, quantity all are the several times of corona discharge.
2, processing area is big.Dielectric barrier discharge is realized processing procedure stabilisation, homogenizing, large tracts of landization.
3, handle longer duration.The surface processing equipment of the utility model is big to surface treatment intensity; Thicker active layer in material surface energy formation; The destruction that the active layer densification is not vulnerable to material such as oxygen, dust in the air loses activity; Usually the material surface activity after jet plasma is handled can be kept two weeks or one month even longer time.
4, single face is handled.Jet plasma is to handle with the form of single face to material, reduced the danger that the corona double treatment causes the material roll banding, handles power consumption simultaneously and reduces by half, and the ozone of generation reduces by half.
More than be illustrative to the description of the utility model; And it is nonrestrictive; Those skilled in the art is understood, and within spirit that claim limits and scope, can carry out many modifications, variation or equivalence to it, but they will fall in the protection range of the utility model all.
Claims (10)
1. a plasma shower nozzle is characterized in that, comprising:
Be penetrated with air gap along its length direction in the air knife, air knife; Grounding electrode is installed on the below of air knife, also is provided with air gap in the grounding electrode, and the air gap in the said air knife extends and is connected with air gap in the grounding electrode to the below of air knife, and the bottom of said grounding electrode is provided with the Cement Composite Treated by Plasma district;
Interior electrode; Its length direction along grounding electrode is installed in the grounding electrode; The outside of interior electrode is provided with dielectric, is plasma discharge region between the inwall of dielectric and grounding electrode, and air gap, plasma discharge region in the said grounding electrode are communicated with the Cement Composite Treated by Plasma district successively; And
High voltage source is connected with said interior electrode.
2. plasma shower nozzle according to claim 1 is characterized in that, air knife connects air accumulator or air compressor machine, and the even air curtain of generation feeds in the electrode air gap, can be in grounding electrode air gap direction in the grounding electrode produce the top-down air-flow.
3. plasma shower nozzle according to claim 1 is characterized in that, said interior electrode is hollow copper tubing or stainless steel tube electrode, and the external diameter of interior electrode is 10-50mm, and interior electrode wall thickness is 1-5mm; The inboard space of interior electrode is used to the cooling water that circulates.
4. plasma shower nozzle according to claim 1 is characterized in that, said dielectric is a solid dielectric, and dielectric thickness is 0.5-3mm.
5. plasma shower nozzle according to claim 1 is characterized in that the arranged beneath of said grounding electrode has the base material that is processed.
6. plasma shower nozzle according to claim 1 is characterized in that, the material of grounding electrode is a stainless steel.
7. plasma shower nozzle according to claim 1 is characterized in that, has the discharge spacing between interior electrode and the grounding electrode, and the discharge spacing is 1-5mm, and the width of air gap in the grounding electrode is 2-5 times of this discharge spacing; The Cement Composite Treated by Plasma district has spout, and this width of jet is 1-2 times of this discharge spacing, and the length of spout is 100-2000mm.
8. plasma shower nozzle according to claim 1 is characterized in that, said in the length of electrode and grounding electrode all at least greater than the effective length 10-20mm of the air gap of air knife.
9. an application rights requires the large format plasma surface treatment machine of each described plasma shower nozzle in 1 to 8; It is characterized in that; Plasma shower nozzle and fixed platform are installed on the frame, and the spout of plasma shower nozzle is towards fixed platform, and the single sheet type base material is fixed on the fixed platform; The plasma shower nozzle more renews base material with preset velocity scanning base material after having scanned.
10. an application rights requires the large format plasma surface treatment machine of each described plasma shower nozzle in 1 to 8; It is characterized in that; Plasma shower nozzle and live-roller are installed on the frame; The roll type base material of the spout of plasma shower nozzle on live-roller, said plasma shower nozzle is fixed, and live-roller transmits the roll type base material with pre-set velocity.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204321802U CN202332782U (en) | 2011-11-03 | 2011-11-03 | Plasma spraying nozzle and large format plasma surface treating machine using spraying nozzle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204321802U CN202332782U (en) | 2011-11-03 | 2011-11-03 | Plasma spraying nozzle and large format plasma surface treating machine using spraying nozzle |
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| Publication Number | Publication Date |
|---|---|
| CN202332782U true CN202332782U (en) | 2012-07-11 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011204321802U Expired - Lifetime CN202332782U (en) | 2011-11-03 | 2011-11-03 | Plasma spraying nozzle and large format plasma surface treating machine using spraying nozzle |
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| CN (1) | CN202332782U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103889138A (en) * | 2012-12-24 | 2014-06-25 | 中国科学院微电子研究所 | Plasma discharge device |
| CN114316166A (en) * | 2021-12-29 | 2022-04-12 | 江苏澳盛复合材料科技有限公司 | Modification preparation method of polyolefin material, polyolefin and device |
-
2011
- 2011-11-03 CN CN2011204321802U patent/CN202332782U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103889138A (en) * | 2012-12-24 | 2014-06-25 | 中国科学院微电子研究所 | Plasma discharge device |
| CN103889138B (en) * | 2012-12-24 | 2016-06-29 | 中国科学院微电子研究所 | Plasma discharge apparatus |
| CN114316166A (en) * | 2021-12-29 | 2022-04-12 | 江苏澳盛复合材料科技有限公司 | Modification preparation method of polyolefin material, polyolefin and device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20120711 |