CN100522384C - Spray gun with gas pressure detector - Google Patents
Spray gun with gas pressure detector Download PDFInfo
- Publication number
- CN100522384C CN100522384C CNB2004100558457A CN200410055845A CN100522384C CN 100522384 C CN100522384 C CN 100522384C CN B2004100558457 A CNB2004100558457 A CN B2004100558457A CN 200410055845 A CN200410055845 A CN 200410055845A CN 100522384 C CN100522384 C CN 100522384C
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- pressure
- spray gun
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- check
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Abstract
The invention relates to a blowgun. When blowgun is used as common one without detecting pressure, detector (10) keeps separating with exterior. When measuring pressure, manometer (30) equipped in pressure detector (20) connects with cooling duct (20) and detects pressure. Moreover, pressure sensing device (36) is embedded in cooling duct (13) and has input/output terminal (37). When input/output terminal (37) connects with pressure detector, special measurement mechanism acquires detecting data and displays pressure. The invention can standardize spraying work due to detecting accurate pressure continuously by user.
Description
Invention field
The present invention relates to have the spray gun of air pressure detector, the air pressure detector does not influence the maintenance of the paint spraying and the spray gun of user's routine, and can be easily when air pressure is sprayed in needs control and not difficultly do not read air pressure.
Background technology
Spray gun uses compressed air will paint atomizing, is ejected on the object.Compressed-air actuated pressure should come under observation and control all the time, guarantees the steady quality that spray gun sprays paint.In some available spray guns, the user can spray air pressure near the position detection one.
When spraying, the injection air pressure that uses in the air gun, be used for paint injection is arrived object is depended in the quality of final coating and the scattering of coating cloud greatly.That is, be well known that higher air pressure will obtain big injection energy and thinner atomizing paint, this generally helps to improve the quality of painting layer.But on the contrary, the thinner mist that atomizes is subject to the influence of air-flow, and it is bigger to scatter.At this on the one hand, be recommended in the use spray gun of suitable expulsion pressure, this suitable expulsion pressure is to select according to paint, the object that sprays paint and coating condition.For high-quality varnished, wish under air pressure that supervision is used to penetrate and condition, to use spray gun in fine control.In nearest spray gun, use lower air pressure to prevent that paint injection from scattering, and importantly air pressure is sprayed in control because even the little variation of air pressure also can influence coating quality widely.For example, be transported to paint station one by one when applying the paint that color is different each other at object, because the different in kind of paint, paint must atomize under different conditions.In this case, use the spray gun of different paints under many circumstances, their expulsion pressures each other change.
The adjusting of spraying air pressure is before air is fed to spray gun by tracheae, realizes by pressure-reducing valve or similar device.Traditionally, the user of spray gun expulsion pressure seldom in the process of the required coating of spraying.But, as mentioned above, regulate expulsion pressure it is in the scope that guarantees the coating stabilised quality, be considered to very important, and need monitor expulsion pressure in a near position spray gun.And, in order to guarantee the stabilised quality of coating, under with the condition of air pressure adjustment, prepared the standardization of continuous injection coating, and needn't rely on user's skill and intuition at preset range.Like this, need in the process of spraying coating, monitor air pressure.
Usually, in order to obtain quantitative data, in coating test, barometer directly is contained on the spray gun.The pressure gauge that uses in this test is a kind of of universal use, and it is contained in the joint of spray gun tracheae.But because weight and size, pressure gauge influence user's conventional spraying coating to be operated, so seldom uses during actual coating.
But, proposed to use a kind of little pressure gauge, directly be contained on the spray gun, to the not influence of operation of spray gun, and when using spray gun, can check air pressure (seeing: day of the present disclosure and utility model No.22277 that examined, 1993) at any time.This pressure gauge is a kind of simulated pressure meter, is known as the bourdon cast, and can not satisfy the requirement of precision and durability, because it must design for a short time, so that be installed on the spray gun.Spray gun uses diluent or similar material cleaning usually.But have this manometric spray gun, extreme care when cleaning, pressure gauge can not use diluent, and can not use any auto-cleaner to clean.
And, manometric problem and indicate expulsion pressure exactly when safeguarding spray gun in order to solve, in Japan publication No.506310 in 1993, disclosed a kind of spray gun, the pressure gauge unit of working pressure sensor has been installed in wherein airtight feud, in order to the numeral indication of air pressure when spraying paint to be provided.In this example, the barometer unit is to use battery operated, and has it to be contained in the container of a hermetic seal.Therefore, spray gun is expensive, and battery is running stores, just becomes rubbish later in the operating period.That is, such spray gun has the problem of a lot of reality not solve.
Summary of the invention
Therefore, an object of the present invention is to overcome the shortcoming of above-mentioned correlation technique, and a kind of spray gun is provided, its expulsion pressure is checked easily when needed, and coating work is by standardization.
The present invention also has another purpose, provides a kind of spray gun, and it is made under the cost reducing, and does not need expensive related facility, can similarly handle with conventional lance when General Maintenance.
A further object of the present invention provides a kind of spray gun, and air pressure is obtained in its design easily, thereby allows to check pressure data, and according to pressure data pressure is carried out expectant control.
The realization of above-mentioned purpose is by a kind of spray gun is provided, and comprising: atomizer, described atomizer use compressed air will paint atomizing; The air intake that is used for compressed-air actuated atomizer; The air duct that between atomizer and air intake, is communicated with, spray gun also comprises check-valves, the one side is towards the portion of air passage, opposite side is towards the spray gun outside, and check-valves is configured such that the device for pressure measurement that is connected to the outside when check-valves, thereby when under outside applied pressure, opening, gas pressure in the air duct is on device for pressure measurement, and separate with device for pressure measurement when check-valves, thereby when closing along with the pressure removal, air duct and external isolation.
Above-mentioned according to spray gun of the present invention in, device for pressure measurement separates with spray gun usually, when needs are measured air pressure, the two is connected to each other.Certainly, as required, spray gun can use the device for pressure measurement that always is connected on the spray gun.
And in above-mentioned spray gun, pressure detector is to use the detection valve of check-valves, and it is externally opened under the applied pressure, and closes when removing pressure.
And the detection valve can be embedded in the joint of spray gun handle end or similarly install.Pressure detector can be detachably connected on the device for pressure measurement by near, screw thread or insertion, is tightly connected as long as reach between the two.
In conjunction with the accompanying drawings, from the detailed description of the following preferred embodiment of the present invention, it is clearer that these and other purposes, features and advantages of the present invention will become.
The accompanying drawing summary
Fig. 1 is the schematic cross sectional views according to spray gun of the present invention;
Fig. 2 also is the cutaway view of an embodiment of check-valves;
Fig. 3 is the cutaway view of another embodiment of check-valves;
Fig. 4 is the external view that check-valves is contained in the spray gun of handle joint;
Fig. 5 is the enlarged side view of part A among Fig. 4.
The specific embodiment
Referring to Fig. 1, schematically show an embodiment of spray gun with the form of cutaway view according to the present invention.Spray gun is a kind of type hand spray gun of handling with trigger 2 generally with reference number 1 expression.As shown in the figure, spray gun 1 comprises the atomizer that is mainly formed by atomizing space gas cap 3 and paint spray nozzle 4, the gun barrel 8 that forms by paint supply adjuster 5, pattern adjuster 6 and air valve 7, and from gun barrel 8 backward and the handle 9 of downward extension.Jointing 12 is formed on the bottom of handle 9, wherein has air intake 10.
In gun barrel, form air duct 13, air intake 10 and atomizer are connected to each other.The control valve 61 that in portion of air passage 13, has air valve 7 and pattern adjuster 6.According to this embodiment, check-valves 20 is contained between above-mentioned air valve 7 and the control valve 61.Check-valves 20 has main body 21, and main body 21 closely is fixed on the spraygun body 11 by screw thread.Wherein valve 23 cooperates with seat 22, in order to close air duct.Valve 23 is under the effect of elastic component 24, and its rear end is always near on present 22.The front of valve 23 forms bar 26, stretches out in the hole 25 that forms from the main body 21 of valve 23.When valve rod 26 was pushed into, valve 23 was opened, and was subjected to from the pressure in the air duct 13.
The installation site of check-valves 20 can be the position that communicates with the part of air duct 13 in the spray gun, and pressure herein is to detect.According to the position of check-valves 20, for example, can have independent communication passage, make between check-valves 20 and the air duct 13 to be communicated with.And hole 25 can have lid, and that paints when preventing to use spray gun entering or by mistake opening.And, for fixation pressure meter 30 provisionally, for example, can have detachable apparatus, pressure gauge 30 is screwed in the hole 25 of valve body 21.
As mentioned above,, spraying coating is improved, and when needs are measured and check air pressure, can air pressure be detected immediately by depressing pressure gauge 30 by providing pressure gauge 30 as the pressure detecting valve.As mentioned above, tracheae setting pressure meter is different with unloading in the conventional lance, according to spray gun of the present invention not needs after installation, unload pressure gauge because the operability of the present invention when not damaging the lance ejection coating.According to spray gun of the present invention, certainly as common spray gun.
And, owing to there is not the setting pressure meter above the spray gun, therefore can easily cleans, and also can in automatic cleaning equipment, diluent be sprayed to whole spray gun with diluent or similar material, these two kinds are all no problem.
Figure 4 and 5 are represented an alternative embodiment of the invention, and wherein the pressure detector of spray gun is contained in the joint of spray gun air intake.Fig. 4 is the external view of spray gun.As the expression in detail of the cutaway view of Fig. 5, pressure detector 41 is embedded in the jointing 12.Pressure detector 41 can have similar check-valves, as what comprise among the top embodiment with reference to figure 2 descriptions.Although can have the free detachable cap 44 that dotted line is represented among Fig. 5 if desired, what be used to prevent to paint directly enters, and wishes that pressure detector 41 can easily dismantle.So shown in the embodiment, on a part of structure that pressure detector 41 is embedded in the air duct of spray gun links to each other, the joint of conventional lance or similar device can be replaced with spray gun joint of the present invention, and needn't make amendment to spraygun body.
According to the present invention, take out the valve of the injection air pressure in the air duct or the sensor of the displacement that detected pressures causes, be installed on the spray gun, and pressure gauge itself is not contained on the spray gun.Not needing provides pressure sensor, change-over circuit plate, pressure indicator or similar device for every spray gun.That is, Zhuan Yong device for pressure measurement only just is connected on the spray gun during air pressure in needs detect spray gun.
And device for pressure measurement can comprise conversion equipment, as power subsystem, is used for pressure is converted to the control circuit board of the signal of telecommunication that numeral shows, the working pressure data are as the storage/calculation element of control signal etc., and these and spray gun separate itself.Like this, the pressure detecting feature can be included in the measurement mechanism of the present invention self, and needn't consider to paint and may the invading and adhere to of solvent, and security requirement, paint injection condition that thus can be storing predetermined, can easily regulate air pressure, the acceptability of air pressure can be informed by warning or similar device.
Industrial usability
As top description, spray gun provided by the invention, a key factor--the expulsion pressure when allowing the user easily to check as the use spray gun in any required moment, and easily control expulsion pressure.And the structure of lance tube is not how, and the present invention is applicable to the spray gun that has air duct and use blast injection paint.
According to the present invention, only on spray gun, have minimum function, detect valve or sensor or similar device as air pressure, just can easily detect air pressure when needed.For barometric surveying, do not need big mechanism, therefore spray gun of the present invention is a high safety and durable.And because superincumbent device for pressure measurement is installed in the unnecessary use of spray gun always, independent this device can use with a plurality of spray guns.That is, can use a lot of spray guns at low cost.
And, device for pressure measurement, for example digital pressure gauge can unload from spray gun, uses as common spray gun.Therefore, when safety, plant bulk and cost can not considered, device for pressure measurement can be equipped with memory cell, control feature and similarly install, and was used for standardization and management spraying operation.
In the superincumbent description, consider some preferred embodiment of the present invention with reference to the accompanying drawings as an example, described the present invention in detail.But, one of ordinary skill in the art it should be understood that, the present invention is not limited to these embodiment, but do not departing under that claim provides and the conditions scope and spirit of the present invention that limit, can revise differently, construct in other mode, perhaps with different embodied in other.
Claims (2)
1. spray gun comprises: atomizer, described atomizer use compressed air will paint atomizing; The air intake that is used for compressed-air actuated atomizer; The air duct that is communicated with between atomizer and air intake is characterized in that also providing check-valves, and the one side is towards the portion of air passage, and opposite side is towards the spray gun outside,
Described check-valves is configured to, make that working as check-valves is connected to outside device for pressure measurement, thereby when under outside applied pressure, opening, gas pressure in the air duct is on device for pressure measurement, separate with device for pressure measurement and work as check-valves, thereby when closing along with the pressure removal, air duct and external isolation.
2. spray gun as claimed in claim 1 is characterized in that in the joint of described check-valves embedding as air intake.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2004100558457A CN100522384C (en) | 2004-08-04 | 2004-08-04 | Spray gun with gas pressure detector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2004100558457A CN100522384C (en) | 2004-08-04 | 2004-08-04 | Spray gun with gas pressure detector |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1730169A CN1730169A (en) | 2006-02-08 |
| CN100522384C true CN100522384C (en) | 2009-08-05 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2004100558457A Expired - Fee Related CN100522384C (en) | 2004-08-04 | 2004-08-04 | Spray gun with gas pressure detector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN100522384C (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20080217437A1 (en) * | 2007-03-06 | 2008-09-11 | Spraying Systems Co. | Optimized Method to Drive Electric Spray Guns |
| CN201841081U (en) * | 2010-09-28 | 2011-05-25 | 潘星钢 | Spray gun with air pressure display device |
| CN105804377A (en) * | 2016-02-23 | 2016-07-27 | 纬冈工业（宁波）有限公司 | Putty spray gun |
| CN107350104A (en) * | 2017-06-28 | 2017-11-17 | 安徽信陆电子科技有限公司 | A kind of spraying equipment spray gun automatic regulating system |
| CN108722712B (en) * | 2018-08-08 | 2023-11-24 | 广东好顺欧迪斯科技股份有限公司 | Spray head and spraying device |
| CN111558478B (en) * | 2020-04-30 | 2021-09-10 | 余姚市瑞达日用品有限公司 | External spring type spray gun head with double one-way valve structure |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6585173B2 (en) * | 2001-07-19 | 2003-07-01 | Sata-Farbspritztechnik Gmbh & Co. | Paint spray gun |
| FR2841093A1 (en) * | 2002-06-24 | 2003-12-26 | Denis Deleval | Equipment for watering plantations, comprises pistol or lance attached to hose with integral sensor to measure the quantity of water delivered and signaling unit to give audible or visual indication |
| EP1375013A2 (en) * | 2002-06-18 | 2004-01-02 | ITW Limited | Pressure gauge |
-
2004
- 2004-08-04 CN CNB2004100558457A patent/CN100522384C/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6585173B2 (en) * | 2001-07-19 | 2003-07-01 | Sata-Farbspritztechnik Gmbh & Co. | Paint spray gun |
| EP1375013A2 (en) * | 2002-06-18 | 2004-01-02 | ITW Limited | Pressure gauge |
| FR2841093A1 (en) * | 2002-06-24 | 2003-12-26 | Denis Deleval | Equipment for watering plantations, comprises pistol or lance attached to hose with integral sensor to measure the quantity of water delivered and signaling unit to give audible or visual indication |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1730169A (en) | 2006-02-08 |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090805 Termination date: 20190804 |