CN1104288C - Coating gun device - Google Patents
Coating gun device Download PDFInfo
- Publication number
- CN1104288C CN1104288C CN99109168A CN99109168A CN1104288C CN 1104288 C CN1104288 C CN 1104288C CN 99109168 A CN99109168 A CN 99109168A CN 99109168 A CN99109168 A CN 99109168A CN 1104288 C CN1104288 C CN 1104288C
- Authority
- CN
- China
- Prior art keywords
- cover
- nozzle body
- compressed air
- gun device
- coating gun
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B12/00—Arrangements for controlling delivery; Arrangements for controlling the spray area
- B05B12/16—Arrangements for controlling delivery; Arrangements for controlling the spray area for controlling the spray area
- B05B12/18—Arrangements for controlling delivery; Arrangements for controlling the spray area for controlling the spray area using fluids, e.g. gas streams
Abstract
The present invention relates to a spray gun apparatus which comprises a main body, a nozzle body and a cover of a cone body or a circular plate body, wherein the nozzle body is arranged at the central part of the main body, and is used for spraying paint liquid. The cover of the cone body or the circular plate body surrounds the nozzle body, and expands outwards. A middle wall surface relative to the cover is penetrated by a plurality of outer air inlet holes in parallel with the central line of the cover. The peripheral marginal part of the cover is provided with a plurality of compressed air spray holes which form a slope angle of 1 to 25 degrees with lines passing through the central part and parallel lines at intervals.
Description
Technical field
The present invention relates to carried out the coating gun device of coating spraying usefulness by spray.
Background technology
Mounting cup has been technique known in the coating gun device of spraying spraying, and Figure 11 is a conventional device.Its structure is as described below; 1 is the paint spray gun main body; 2 is the nozzle body of body front part; 3 for surrounding the cover of this nozzle body; 4 for being installed in the nut on the nozzle body; use bolt 5 that aforementioned cover 3 is fixed on periphery, the operation of the trigger 1a by main body 1 side, micronized spray coating liquor 6 is facing to being ejected as fine rule by spray 7.
When the hydraulic pressure of said apparatus was 40 atmospheric pressure～250 atmospheric pressure, the spraying distance can obtain best spraying distribution effect down for the state apart from 30 centimetres～35 centimetres in spraying face.As spraying in the position more farther than this distance, then coating has lost perforation power, and most coating can disperse towards periphery.
Though above-mentioned spray coating liquor 6 defines its injection direction by covering 3, the influence that is subjected to wind can fly around, and Here it is makes spraying irregular colour, the low reason of spray efficiency.That is, in the outdoor spraying in shipyard etc., below 50%, this not only relates to the problem of economy to coating for the adhesive rate of spraying face, and the dispersing also the environment around the factory to be produced of coating polluted.In order to address this problem, present countermeasure is to consider wind direction, or stops spraying operation, or uses the protection network that disperses.
In order to address the above problem, the inventor had once proposed coating gun device in No. 3047146 utility model of Japan, promptly surround nozzle body and be provided with the air trapping alcove that is concavity with a constant volume, and with respect to expanding substantial middle or the edge part that is split into trumpet-shaped inclined wall to foreign side from all end margins of this alcove, be provided with and be concentric 5～12 compressed-air actuated squit holes 9, but this squit hole along continuous straight runs ejection compressed air, as shown in figure 13, by this device, the compressed-air actuated air curtain that sprays the outer periderm along continuous straight runs injection of spray coating liquor surrounds, so, obtained certain effect for addressing the above problem.
Summary of the invention
The objective of the invention is to improve the device that has proposed, solve above-mentioned variety of problems.
To achieve these goals, coating gun device of the present invention has the nozzle body of spray coating liquor at central part, also be formed with and surround this nozzle body and expand the cone open or the cover of plectane body to foreign side, middle wall with respect to this cover, be equipped with several and be the outside air ostium of parastate by the line of central part, and also uniformly-spaced be equipped with the compressed air squit hole that several injection directions and line and parallel lines thereof by the nozzle body central part become 1 °～25 ° of angles of inclination at the peripheral edge portion of cover.
Specifically describe the present invention below.
Central part at cover forms the alcove that surrounds the periphery of nozzle body and have the recessed tubular of a constant volume, and maybe the peripheral edge portion with cover forms downward inclined wall towards injection direction, or the otch of concavity is set between adjacent compressed air squit hole.In addition, the aperture of outside air ostium is 2 millimeters～10 millimeters, uniformly-spaced is adapted to row or a multiple row 4～32 concentric shapes of air ostium of She Zhiing.In an embodiment is circular hole, but is not limited to circular hole, oval, square etc. also passable.The number in hole is relevant with the particle rapidity of spray coating liquor, can do suitable adjustment.
The present invention can improve the particle rapidity of spray coating liquor by said method, even also can not reduce particle rapidity with being increased by the distance of spray, therefore spraying evenly and can prevent dispersing of dust.Specifically; existing apparatus is because the contact resistance of coating and air makes the particle rapidity of spray coating liquor descend; and too micronized dust can disperse; and the present invention is by the air vent leaked-in air from the cover that is arranged in cone or plectane body; the particle rapidity of spraying spray coating liquor is accelerated, can be prevented also that simultaneously dust formation from improving deposit efficiency.
The spirality air curtain that forms by the compressed air that sprays at an angle of neighboring particularly from cover, make that the spray film of spray liquid and diffusion thereof is being rolled up along straight ahead, and be not subjected to the influence of crosswind (even under windless condition, because shaking yet of paint spray gun can produce crosswind).
In reality, if there is wind, even gentle breeze can make that also spray liquid spreads towards periphery, contaminated environment, adhesive rate can drop to below 50% simultaneously, can prevent the generation of described problem reliably by the present invention.
Because the particle rapidity from central authorities to the edge is evenly distributed, so the outline line of spraying face is clear, mould is evenly distributed, and can prevent to spray generation mottled or the drip phenomenon, improves coating quality.In addition, except can eliminating adhering to loss, improving spray efficiency and the economy of spray coating liquor, can also be by above-mentioned helical form air curtain, the problem such as rebound of generation when solving existing apparatus and spraying in corner portion.
Description of drawings
Fig. 1 is near the part stereogram of cover of coating gun device of the present invention;
Fig. 2 is the central sectional view of Fig. 1;
Fig. 3 is the plane of cutting open along the X-X line of Fig. 1;
Fig. 4 A～Fig. 8 is other variation;
Fig. 9 is the key diagram of the user mode of Fig. 1;
Figure 10 adheres to the key diagram of figure for spray coating liquor;
Figure 11 is the figure of common existing apparatus;
The stereogram of the cover of the device that Figure 12 proposes in No. 3047146 utility model of Japan before the present patent application for the present inventor;
Figure 13 is the key diagram of its user mode;
Figure 14 is the table of representing spray characteristics, the experiment comparison sheet that is the device of Fig. 1, Figure 11, Figure 12.
The specific embodiment
Below with reference to the description of drawings embodiments of the invention.
Fig. 1 is near the part stereogram of cover of spray equipment of the present invention, and Fig. 2 is a central sectional view.1b is a spray pipe among this figure, and 2 is the nozzle of coating, and 3 are cover, and 4 be the nozzle body hold-down nut, and 5 is bolt, and what variation this and Figure 11 and existing apparatus shown in Figure 12 do not have, and the cover 3 among the present invention has the structure after the improvement as described below.
3a is for surrounding nozzle body concavity alcove 2 position peripheries, that have a constant volume, the volume of this alcove 3a is for can suitably being detained the air of outside in alcove, its internal diameter R is about 1.5r～2r of nozzle body external diameter r, and the size of its depth S is similarly 1.5r～2r.
8 open-works for using in the uniformly-spaced adjacent inflow outside air that wears in substantial middle vicinity that is the inclined wall 3b that horn-like expansion opens, its aperture is that 2 millimeters～10 millimeters, quantity are at least 4, maximum 32, it is row or a multiple row (being 12 concentric row in the diagram) that this open-work wears with concentric shape.Used in an embodiment is circular hole, but is not limited to circular hole, oval or square also passable, and the number in this hole is relevant with the particle rapidity of spray coating liquor, can suitably adjust, for example, and can filling in or pulling up and adjust by blockage embolus.
9 are used for spraying compressed-air actuated compressed air squit hole for what be arranged on the circumference of cover, become 1 °～25 ° angles of inclination (with reference to Fig. 3) with the spray coating liquor of nozzle body 2, and this hole equally spaced disposes with 4～16 (among the figure being 10).
The aperture of compressed air squit hole 9 is 0.5mm φ～2.0mm φ, and 10 for the compressed air that surrounds this squit hole back part flows into the chamber, and 11 for to lead to this indoor compressed air ingress pipe, and 12 is compressed air regulating valve.
According to result of experiment repeatedly, peripheral edge portion at the above-mentioned cover that is equipped with compressed air squit hole 9, preferably form downward-sloping inclined wall p towards compressed air squit hole 9, it can prevent from the back side of ejection air-flow turbulent flow to take place when ejection compressed air effectively.
A last example is that cover is described for the situation of cone, but can implement equally for the plectane body as cover, and Fig. 4 A is that stereogram, Fig. 4 B are central sectional view.
In this example, the use wall thickness is 1.5 centimetres～2 centimetres metal system or a plastics rounding plate body, can be made into to compare with a last example to make and be relatively easy to cover 3,8 is the open-work that the outside air parallel with the nozzle of plectane body central part flows into usefulness among the figure, 9 is the compressed air squit hole, 10 for compressed air flows into the chamber, and 11 is the compressed air ingress pipe, and 12 is compressed air regulating valve.
In addition, 3a is an alcove, and 3b is for expanding the inclined wall of opening from this alcove front end towards plectane body front.
In the last example, the open-work 8 that outside air flows into usefulness that is provided with in interior week at the smooth front k of plectane body is provided with compressed air squit hole 9 in periphery, yet in Fig. 5, the open-work 8 that outside air flows into usefulness is located on the inclined wall 3b, has only compressed air squit hole 9 to be located on the tabular surface k.
In enforcement of the present invention, in order to prevent the generation of turbulent flow, the rear side that is preferably in compressed air squit hole 9 forms the inclined wall p that descends towards compressed-air actuated emission direction.In above-mentioned each example compressed air squit hole 9 with respect to horn-like inner face expand open wall (Fig. 1, Fig. 2), or the tabular surface of plectane body (Fig. 4 Fig. 5) is provided with, and its rear side forms decline inclined wall p.Fig. 6 directly is provided in the interior structure chart of decline inclined wall p for compressed air squit hole 9.
Outside air in above-mentioned each example flows into the open-work 8 of usefulness, all is to be located in the cover of cone or plectane body to form concentric row, when the outer diameter D of cover is big, then wears multiple row and can fully flow into to guarantee outside air.Promptly generally speaking, when the outer diameter D of cone or plectane body is 5 centimetres～10 centimetres, 4～16 apertures be set usually be 2 millimeters～10 millimeters and be concentric row or two row open-works, and when outer diameter D more than 10 centimetres the time, then be provided with two be listed as, three row ...When unnecessary, available blockage embolus clogs it.
Fig. 7 is that outer diameter D is the example of 13 centimetres plectane body, and it is three row and establishes.Under above-mentioned any situation, make between open-work can make outside air flow into equably apart from equating.
In the present invention, can be not yet in the rear side of the compressed air squit hole 9 of the peripheral edge portion that is equipped on cover 3, formation prevents the inclined wall towards the decline of compressed air emission direction that turbulent flow takes place, and solves the problems referred to above by the otch 13 that concavity as shown in Figure 8 is set between adjacent compressed air squit hole 9 and 9.
In above-mentioned each example, the injection direction of compressed air squit hole 9 is certain tilt angle theta, the direction that tilts to the left or to the right at promptly 1 °～25 ° of angles of inclination for line O and the parallel lines thereof with center by nozzle body 2.Fig. 3 is the plane of cutting open along the X-X line shown in Figure 1, demonstration be the state that is tilted to the left.Like this, tilt, can make the periphery of the vaporific spray coating liquor that ejects from nozzle body 2 be surrounded as tubular with certain tilt angle theta, promptly can reach and prevent the effect of dispersing to periphery, in addition, also can make spray coating liquor not be subjected to the influence of outside air, arrive smoothly by the spraying body.
The key diagram of Fig. 9 for using coating gun device shown in Figure 1 to spray, in nozzle body 2 ejection spray coating liquors 6, eject the compressed air of 3 Kilograms Per Square Meters～6 Kilograms Per Square Meters from compressed air squit hole 9, the outer periderm of spray coating liquor 6 surrounds from the air curtain 14 of the compressed air formation of above-mentioned compressed air squit hole 9 ejections, can spread towards periphery by geodetic.
Above-mentioned compressed air squit hole has 1 °～25 ° angle of inclination, can surround the periphery of spray coating liquor by rotating flow, prevents the spray coating liquor dust formation and disperses, thereby make spraying evenly, does not have mottledly, and spraying operation is respond well.From experimental result repeatedly, above-mentioned tilt angle theta is best in 3 °～12 ° scope.
In the present invention, along with above-mentioned compressed-air actuated injection, the air of outside flows into by several open-works 8 that are located on cone or the plectane body, this makes from the suitable miniaturization of the spray coating liquor 6 of nozzle body 2 ejections, its flow velocity is accelerated, on raising adhesion effect and efficient, had significant effect.
Figure 14 is for wearing the experiment comparison sheet of the existing apparatus A (cover shown in Figure 11) of outside air ostium and modifying device B (cover shown in Figure 12) that the present inventor once proposed and the C of device of the present invention (cover shown in Figure 1) on cover, with the spray characteristics of each device (at 30 centimetres at distance nozzle, 50 centimetres, during 70 centimetres position, the particle rapidity and the spray efficiency of injection center and left and right sides part) pictorialization.
Experiment condition: experiment is La Pamalin BTD (ラ バ マ リ Application BTD) [dilution is La Pamalin solution (ラ バ マ リ Application シ Application Na-) 5%] with coating, being coated with output is 2000 ml/min, pressure is 3.5 Kilograms Per Square Meters, air curtain condition (air pressure is 6.0 Kilograms Per Square Meters).
In this table, existing apparatus (particularly A) is along with distance becomes 50 centimetres, and 70 centimetres, particle rapidity obviously reduces, and the speed difference of left and right directions is bigger.
Therefore, can bring harmful effect to spray efficiency, but how the particle rapidity of apparatus of the present invention C do not reduce, left and right directions does not almost have speed difference yet, and the low high pressure of this and spray coating liquor is irrelevant, can improve spray efficiency widely.
Figure 10 is at the spraying figure of 70 centimeters in the above-mentioned experimental example, existing apparatus A (shown in Figure 11) is shown in dotted line, can be clear that the dust m that disperses at left and right directions, this is that spraying produces mottled reason, and can see that in the device C of the present invention (solid line) of modifying device B of cover shown in Figure 12 (chain-dotted line) and cover shown in Figure 1 the dust m that disperses has obtained obvious suppression.
In the various embodiments described above, the angle of considering compressed-air actuated nozzle is oblique towards a left side or right two square necks, but because of the relation of earth rotation, better towards left bank.This angle of inclination effect in 3 °～12 ° scopes is best in addition.
Claims (6)
1. coating gun device, it is characterized in that, the nozzle body that has spray coating liquor at central part, also be formed with and surround this nozzle body and expand the cone opened or the cover of plectane body to foreign side, middle wall with respect to this cover, be equipped with several and the outside air ostium that is parastate by the line of central part, peripheral edge portion at cover also uniformly-spaced is equipped with several compressed air squit holes, and the injection direction of this compressed air squit hole becomes 1 °～25 ° angles of inclination with center line by nozzle body.
2. coating gun device as claimed in claim 1 is characterized in that, forms the alcove cylindraceous of a constant volume at central part, to surround the periphery of nozzle body.
3. coating gun device as claimed in claim 1 is characterized in that, the aperture of outside air ostium is 2 millimeters～10 millimeters, and equally spaced 4～32 holes are worn to being concentric row or a multiple row.
4. coating gun device as claimed in claim 1 is characterized in that, all end margins of cover form towards the downward inclined wall of the injection direction of spray coating liquor.
5. coating gun device as claimed in claim 1 is characterized in that, is provided with otch between adjacent compressed air squit hole.
6. coating gun device as claimed in claim 1 is characterized in that, for several outside air ostiums that are located on the cover, and filling in or pulling up the influx of outside air is regulated by blockage embolus.
Priority Applications (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10048848A JP2917013B1 (en) | 1998-02-12 | 1998-02-12 | Painting gun equipment |
| TW088109887A TW411284B (en) | 1998-02-12 | 1999-06-14 | A spray gun device |
| CN99109168A CN1104288C (en) | 1998-02-12 | 1999-06-18 | Coating gun device |
| DE19928614A DE19928614C1 (en) | 1998-02-12 | 1999-06-22 | Painting gun for misting paint effect |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10048848A JP2917013B1 (en) | 1998-02-12 | 1998-02-12 | Painting gun equipment |
| CN99109168A CN1104288C (en) | 1998-02-12 | 1999-06-18 | Coating gun device |
| DE19928614A DE19928614C1 (en) | 1998-02-12 | 1999-06-22 | Painting gun for misting paint effect |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1277895A CN1277895A (en) | 2000-12-27 |
| CN1104288C true CN1104288C (en) | 2003-04-02 |
Family
ID=27179247
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN99109168A Expired - Fee Related CN1104288C (en) | 1998-02-12 | 1999-06-18 | Coating gun device |
Country Status (4)
| Country | Link |
|---|---|
| JP (1) | JP2917013B1 (en) |
| CN (1) | CN1104288C (en) |
| DE (1) | DE19928614C1 (en) |
| TW (1) | TW411284B (en) |
Families Citing this family (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| ATE435046T1 (en) | 2002-05-16 | 2009-07-15 | Boehringer Ingelheim Int | SYSTEM COMPRISING A NOZZLE AND A MOUNTING SYSTEM |
| US9162245B1 (en) * | 2012-03-29 | 2015-10-20 | BTD Wood Powder Coating, Inc. | Powder coating conveyor support |
| CN104492298B (en) * | 2014-12-04 | 2016-08-17 | 苏州国环环境检测有限公司 | Prevention occupation disease powder writes the detecting system that descends slowly and lightly freely and easily |
| CN104492296B (en) * | 2014-12-04 | 2016-06-08 | 苏州国环环境检测有限公司 | The directed concentration adjusting device of solution |
| CN105457788A (en) * | 2015-11-24 | 2016-04-06 | 高佳 | Atomizing nozzle of dust humidification dust unloading machine |
| CN106437107B (en) * | 2016-11-28 | 2018-09-28 | 重庆瑞恩涂料有限公司 | A kind of straight-line anti-splashing painting spraying device |
| CN106437109B (en) * | 2016-11-28 | 2018-11-13 | 重庆瑞恩涂料有限公司 | A kind of painting spraying device with non-proliferation ring |
| CN107930928B (en) * | 2017-12-20 | 2020-01-31 | 安徽摩诃环保科技有限公司 | High-pressure micro-mist dust suppression nozzle protection cover |
| CN108406607A (en) * | 2018-03-16 | 2018-08-17 | 广东中远海运重工有限公司 | A kind of novel environment friendly water mist sand rifle |
| CN110684890B (en) * | 2019-10-31 | 2021-08-03 | 宝钢轧辊科技有限责任公司 | Cryogenic treatment method for forged steel cold roll and novel nozzle adopted by cryogenic treatment method |
| CN110665663A (en) * | 2019-11-13 | 2020-01-10 | 台州市台清环保科技有限公司 | Air curtain spray head and spraying gun applying same |
| CN111266236B (en) * | 2020-04-01 | 2021-03-12 | 邢台职业技术学院 | Leather spraying device |
| KR102310874B1 (en) * | 2021-02-15 | 2021-10-08 | 주식회사 블루 | Paint spraying device capable of painting a large area |
| CN113663845B (en) * | 2021-09-14 | 2022-05-13 | 兴三星云科技有限公司 | Surface treatment device for hardware processing |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6239860U (en) * | 1985-08-26 | 1987-03-10 | ||
| US4969602A (en) * | 1988-11-07 | 1990-11-13 | Nordson Corporation | Nozzle attachment for an adhesive dispensing device |
| JPH09290184A (en) * | 1996-04-26 | 1997-11-11 | Sekisui House Ltd | Spatter coating nozzle |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4767056A (en) * | 1987-04-20 | 1988-08-30 | Kris Demetrius | Spray guard |
-
1998
- 1998-02-12 JP JP10048848A patent/JP2917013B1/en not_active Expired - Fee Related
-
1999
- 1999-06-14 TW TW088109887A patent/TW411284B/en not_active IP Right Cessation
- 1999-06-18 CN CN99109168A patent/CN1104288C/en not_active Expired - Fee Related
- 1999-06-22 DE DE19928614A patent/DE19928614C1/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6239860U (en) * | 1985-08-26 | 1987-03-10 | ||
| US4969602A (en) * | 1988-11-07 | 1990-11-13 | Nordson Corporation | Nozzle attachment for an adhesive dispensing device |
| JPH09290184A (en) * | 1996-04-26 | 1997-11-11 | Sekisui House Ltd | Spatter coating nozzle |
Also Published As
| Publication number | Publication date |
|---|---|
| DE19928614C1 (en) | 2001-02-08 |
| TW411284B (en) | 2000-11-11 |
| CN1277895A (en) | 2000-12-27 |
| JP2917013B1 (en) | 1999-07-12 |
| JPH11226459A (en) | 1999-08-24 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C06 | Publication | ||
| PB01 | Publication | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20030402 Termination date: 20120618 |