CN201098651Y - Fluorescent powder constant temperature constant pressure spray coating device for shadow mask type plasma display - Google Patents
Fluorescent powder constant temperature constant pressure spray coating device for shadow mask type plasma display Download PDFInfo
- Publication number
- CN201098651Y CN201098651Y CNU2007200463121U CN200720046312U CN201098651Y CN 201098651 Y CN201098651 Y CN 201098651Y CN U2007200463121 U CNU2007200463121 U CN U2007200463121U CN 200720046312 U CN200720046312 U CN 200720046312U CN 201098651 Y CN201098651 Y CN 201098651Y
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- slurry tank
- tank
- pressure
- fluorescent powder
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- Application Of Or Painting With Fluid Materials (AREA)
Abstract
The utility model relates to a constant temperature and constant pressure phosphor spraying device for a shadow mask plasma display, and belongs to flat panel TV manufacturing equipment. The device comprises a spray gun (1) and a paste tank (9), wherein the paste tank (9) is connected with a feeding port (1), an exhaust port (11) and a discharging port (12), the feeding port of the spray gun (1) is connected with a compressed air source (8) and the paste tank (9). The device is characterized in that the wall of the paste tank (9) has a double-layered structure and is filled with liquid medium, which is connected with a heat exchange system (2); the compressed air source (8) communicates with the space above the liquid in the paste tank (9) via an air pipe that is provided with a constant pressure valve (6); and a stirring shaft (1) driven by a motor is installed inside the paste tank (9). The phosphor spraying device in the utility model solves the non-uniform spraying problem of prior spraying system, and has the advantages of simple structure and good spraying effect.
Description
Technical field
The utility model relates to a kind of spray equipment, the device of the sprayed with fluorescent powder of the use in especially a kind of flat-panel monitor manufacture process, specifically a kind of fluorescent powder constant-temperature and constant-pressure spraying device of shadow mask plasma display.
Background technology
As everyone knows, in SMPDP fluorescent powder jet printing technology,, in the ethanol slurry, easily precipitate because the proportion of fluorescent material is bigger.In spraying process, if do not keep certain mixing speed, the uniformity of slurry to be difficult to guarantee.In case the fluorescent material precipitation is very easily stopped up spray gun.And temperature is bigger to the viscosity influence of slurry, and spray gun is wanted to obtain best jeting effect, must obtain under the constant situation of viscosity, therefore, keeps temperature constant most important.In addition, the feed of spray gun how much, influences bigger to coating layer thickness, uniformity.Because in spraying process, liquid level is along with the carrying out of spraying, liquid level can reduce gradually, and it is big that the difference in height of spray gun and liquid level can become gradually.Because fluorescent powder paste material proportion is bigger, cause the flow in the feeder sleeve inconsistent, the uniformity of coating is difficult to guarantee after the lance ejection.
Summary of the invention
The purpose of this utility model be in the existing fluorescent powder jet printing owing to a series of problems such as temperature, pressure, stirring cause the uneven problem of spraying, design the fluorescent powder constant-temperature and constant-pressure spraying device of the shadow mask plasma display that a kind of constant temperature and pressure stirs.
The technical solution of the utility model is:
A kind of fluorescent powder constant-temperature and constant-pressure spraying device of shadow mask plasma display, comprise spray gun 1, slurry tank 9, slurry tank 9 is connected with charging aperture 10, exhaust outlet 11 and discharge gate 12, the charging aperture of spray gun 1 links to each other with compressed air gas source 8 and slurry tank 9 respectively, the tank skin that it is characterized in that described slurry tank 9 is a double-decker, be connected with liquid medium in the tank skin, this liquid medium links to each other with heat-exchange system 2; Described compressed air gas source 8 communicates with the space of liquid upper in the slurry tank 9 by tracheae, and constant pressure valve 6 is housed on this tracheae; Shaft 3 also is installed in slurry tank 9, and this shaft 3 is driven by stirring motor.
Described slurry tank 9 also is connected with the Pressure gauge 7 of pressure in the thermometer 4 that is used for measuring the jar slurry temperature, the liquid level gauge 5 that reflects liquid level height in the jar and the reflection jar.
The beneficial effects of the utility model:
The utility model can make the temperature of fluorescent powder paste material keep constant by heat-exchange system, thereby liquid viscosity is remained unchanged; By constant pressure valve, make the pressure that acts on liquid level keep constant, thereby guarantee that fluid pressure is constant in the feeder sleeve, reach stability of flow.Thereby make and use spray equipment of the present utility model that the performance indications of nozzle are required to reduce greatly, greatly reduce purchase cost.Control of the present utility model simultaneously is simple, need not the control of very complicated, has reduced the control failure factor, has improved production efficiency.To other spraying industry, particularly temperature, flow-control there are the liquid spray of requirement, all can adapt to, have wide range of applications!
Description of drawings
Fig. 1 is a structural representation of the present utility model.
The specific embodiment
Below in conjunction with drawings and Examples the utility model is further described.
As shown in Figure 1.
Among Fig. 1:
1. be spray gun: under the compressed air effect, make fluorescent powder paste material produce uniform coating.
2. be the constant temperature heat-exchange system: make a jar interior fluorescent powder paste material keep design temperature.
3. be agitator: stir pump by pneumatic type, liquid slurry is fully mixed, prevent precipitation.
4. be thermometer: measure slurry temperature.
5. be liquid level gauge: detect liquid level.
6. be constant pressure valve: make a jar internal pressure reach setting value, show by Pressure gauge 7.
7. be Pressure gauge: jar internal pressure shows.
8. be compressed air gas source: provide power source.
9. be slurry tank: slurry stores.
10. be charging aperture: reinforced.
11. be exhaust outlet: lose heart.
12. be discharge gate: row's raffinate.
A kind of fluorescent powder constant-temperature and constant-pressure spraying device of shadow mask plasma display, comprise spray gun 1, slurry tank 9, slurry tank 9 is connected with charging aperture 10, exhaust outlet 11 and discharge gate 12, the charging aperture of spray gun 1 links to each other with compressed air gas source 8 and slurry tank 9 respectively, the tank skin of described slurry system jar 9 is a double-decker, be connected with liquid medium in the tank skin, this liquid medium links to each other with constant temperature heat-exchange system 2; Described compressed air gas source 8 communicates with the space of liquid upper in the slurry tank 9 by tracheae, and constant pressure valve 6 is housed on this tracheae; Shaft 3 also is installed in slurry tank 9, and this shaft 3 is by stirring motor or stir the air pump driving.In addition, slurry tank 3 also is connected with the Pressure gauge 7 of pressure in the thermometer 4 that is used for measuring the jar slurry temperature, the liquid level gauge 5 that reflects liquid level height in the jar and the reflection jar.
Specify as follows below:
As shown in Figure 1, the utility model mainly is made up of spray gun 1, constant temperature system 2, shaft 3, thermometer 4, liquid level gauge 5, constant pressure valve 6, Pressure gauge 7, compressed air gas source 8, slurry tank 9, charging aperture 10, exhaust outlet 11, discharge gate 12.
In spray equipment of the present utility model, slurry tank 9 is double-layer structurals, and the centre is full of water, under constant temperature heat-exchange system 2 effect of (can be made up of circulating pump and electric heater unit), makes water temperature keep constant, thereby reaches the stability of jar interior slurry temperature; Whether thermometer 4 monitoring slurry temperatures reach design load; Slurry tank 9 inserts source of the gas, and after constant pressure valve 6 is set certain pressure, this valve will be controlled the air pressure in the slurry tank 9.No matter how liquid level changes, and all can keep tank level air pressure constant (constantly providing pressure by compressed air gas source), thereby makes fluid flow keep stable; Air pump motor or 3 rotations of driven by motor shaft are fully stirred slurry, prevent the deposition of fluorescent material, reach even dispersion effect; Spray gun 1 is under the effect of compressed air gas source 8, and the liquid that ejects will obtain desirable coating; Liquid level gauge 5 is controlled liquid levels within the specific limits, and liquid reduces to a certain degree can be reinforced from charging aperture 10; Before reinforced, exhaust outlet 11 is opened, and exhaust prevents the slurry ejection; Waste material can be discharged by discharge gate 12.
Claims (2)
1, a kind of fluorescent powder constant-temperature and constant-pressure spraying device of shadow mask plasma display, comprise spray gun (1), slurry tank (9), slurry tank (9) is connected with charging aperture (10), exhaust outlet (11) and discharge gate (12), the charging aperture of spray gun (1) links to each other with compressed air gas source (8) and slurry tank (9) respectively, the tank skin that it is characterized in that described slurry tank (9) is a double-decker, be connected with liquid medium in the tank skin, this liquid medium links to each other with heat-exchange system (2); Described compressed air gas source (8) communicates with the space of liquid upper in the slurry tank (9) by tracheae, and constant pressure valve (6) is housed on this tracheae; Shaft (3) also is installed in slurry tank (9), and this shaft (3) is driven by stirring motor.
2, the fluorescent powder constant-temperature and constant-pressure spraying device of shadow mask plasma display according to claim 1 is characterized in that described slurry tank (9) also is connected with the Pressure gauge (7) of pressure in the thermometer (4) that is used for measuring the jar slurry temperature, the liquid level gauge (5) that reflects liquid level height in the jar and the reflection jar.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200463121U CN201098651Y (en) | 2007-10-10 | 2007-10-10 | Fluorescent powder constant temperature constant pressure spray coating device for shadow mask type plasma display |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200463121U CN201098651Y (en) | 2007-10-10 | 2007-10-10 | Fluorescent powder constant temperature constant pressure spray coating device for shadow mask type plasma display |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201098651Y true CN201098651Y (en) | 2008-08-13 |
Family
ID=39935180
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007200463121U Expired - Lifetime CN201098651Y (en) | 2007-10-10 | 2007-10-10 | Fluorescent powder constant temperature constant pressure spray coating device for shadow mask type plasma display |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201098651Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2009046643A1 (en) * | 2007-10-10 | 2009-04-16 | Nanjing Huaxian High Technology Co., Ltd. | A fluorescent powder spraying device for shadow mask type plasma display |
-
2007
- 2007-10-10 CN CNU2007200463121U patent/CN201098651Y/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2009046643A1 (en) * | 2007-10-10 | 2009-04-16 | Nanjing Huaxian High Technology Co., Ltd. | A fluorescent powder spraying device for shadow mask type plasma display |
| CN101143354B (en) * | 2007-10-10 | 2011-04-27 | 南京华显高科有限公司 | Shadow mask type plasma display fluorescent powder constant-temperature and constant-pressure spraying device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20080813 Effective date of abandoning: 20071010 |