CN201134404Y - Apparatus for rubber coating and defoaming in production of planar mask for cathode ray tube - Google Patents
Apparatus for rubber coating and defoaming in production of planar mask for cathode ray tube Download PDFInfo
- Publication number
- CN201134404Y CN201134404Y CNU2007200302609U CN200720030260U CN201134404Y CN 201134404 Y CN201134404 Y CN 201134404Y CN U2007200302609 U CNU2007200302609 U CN U2007200302609U CN 200720030260 U CN200720030260 U CN 200720030260U CN 201134404 Y CN201134404 Y CN 201134404Y
- Authority
- CN
- China
- Prior art keywords
- glue
- planar mask
- ball valve
- flow meter
- vacuum
- 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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- Manufacture Of Electron Tubes, Discharge Lamp Vessels, Lead-In Wires, And The Like (AREA)
- Coating Apparatus (AREA)
- Application Of Or Painting With Fluid Materials (AREA)
Abstract
The utility model relates to glue defoaming device of a flat shadow mask production technology for cathode-ray tubes, which comprises a ball valve, a flow meter and a vacuum generator and characterized in that the flow meter is communicated with glue liquor in a glue feeding pipeline via the ball valve, certain vacuum cavity is formed inside the flow meter by vacuum generated by the vacuum generator, thereby removing foams in the glue liquor communicated with the flow meter, guaranteeing reliability of gluing system and production process, and further reducing generation rate of flat shadow mask defects.
Description
Technical field
The utility model relates to a kind of explained hereafter gluing defoaming device of cathode-ray tube planar mask, and the bubble under this device can effectively improve in the sebific duct road promotes product quality, belongs to gluing defoaming device technical field.
Background technology
Planar mask is not only the important color component that selects in the colour display tube, also plays a part the exposure template in the manufacture process of colour display tube, so planar mask has a significant impact the landing performance of colour display tube.
In the planar mask production process, planar mask surface-coated layer of even glued membrane, this layer glued membrane can be resisted the corrosion of corrosive liquid in corrosion process, guarantee the pass quality of planar mask, if in the glue coating procedure, contain impurity or bubble in the glue and can cause this layer glued membrane inhomogeneous, the pass of planar mask can be destroyed, be influenced the quality of product.For guaranteeing the product quality of planar mask, need eliminate the bubble in the glue as far as possible.
Former design is at following sebific duct road inlet a vacuum defoaming device to be installed, and through the froth breaking of vacuum defoaming device, makes down that the bubble in the glue is removed in the sebific duct road, but the actual part bubble that still has do not eliminated fully, has influenced the product quality of planar mask.Instantly after saving bit by bit a large amount of bubbles in the sebific duct road, just need the bubble operation of exitting of glue in the pipeline, this operating influence coating system stable, cause the planar mask defective to increase.
Summary of the invention
The purpose of this utility model just relates to a kind of gluing defoaming device that can effectively improve bubble in the cathode-ray tube planar mask gluing pipeline.
For realizing above purpose, the technical solution of the utility model is by increasing a secondary vacuum defoaming device in the sebific duct road down, further eliminates the bubble in the glue.This secondary vacuum defoaming device is taken into account a vacuum generator by two ball valves, a flow and is formed, and wherein the flowmeter lower end is connected with following sebific duct road by a ball valve, and the upper end is connected with vacuum generator.
The principle of this device is: the vacuum that vacuum generator produces forms certain vacuum chamber in flowmeter, thereby will eliminate with the bubble in the glue that flowmeter communicates, guarantee the stable of coating system and production process, reduced the probability that the planar mask defective produces.
Below in conjunction with accompanying drawing and example the utility model is further specified.
Description of drawings
Fig. 1 is a structural representation of the present utility model.
1. ball valves (1) among the figure, 2. ball valve (2), 3. flowmeter, 4. secondary vacuum generator.
Embodiment
In Fig. 1, vacuum generator (4), flowmeter (3) and ball valve (1) connect successively by stainless steel tube, and ball valve (1) links together with following sebific duct road.Production period, close ball valve (2), open ball valve (1), open vacuum generator, by adjusting the vacuum degree of vacuum generator, in flowmeter, keep the glue of certain liquid level and in flowmeter, form certain vacuum chamber, will constantly eliminate with the bubble in the glue that flowmeter is communicated with by the vacuum chamber that forms.Along with the minimizing of bubble in the following sebific duct road, the stability of coating system strengthens, and has reduced the probability that the planar mask defective produces.
Claims (1)
1. the explained hereafter gluing defoaming device of a cathode-ray tube planar mask, it is characterized in that increasing a secondary vacuum defoaming device of forming by ball valve (1), ball valve (2), flowmeter (3) and secondary vacuum generator (4) in the sebific duct road down, wherein the flowmeter lower end is connected with following sebific duct road by ball valve (1), and the upper end is connected with vacuum generator.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200302609U CN201134404Y (en) | 2007-11-06 | 2007-11-06 | Apparatus for rubber coating and defoaming in production of planar mask for cathode ray tube |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200302609U CN201134404Y (en) | 2007-11-06 | 2007-11-06 | Apparatus for rubber coating and defoaming in production of planar mask for cathode ray tube |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201134404Y true CN201134404Y (en) | 2008-10-15 |
Family
ID=40062671
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007200302609U Expired - Fee Related CN201134404Y (en) | 2007-11-06 | 2007-11-06 | Apparatus for rubber coating and defoaming in production of planar mask for cathode ray tube |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201134404Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2010121478A1 (en) * | 2009-04-24 | 2010-10-28 | 东莞宏威数码机械有限公司 | Glue-water-defoaming device |
| CN104960802A (en) * | 2015-06-01 | 2015-10-07 | 浙江汇力胶囊有限公司 | Vacuum-pumping dustproof glue solution insulation barrel |
| CN104960778A (en) * | 2015-06-01 | 2015-10-07 | 浙江汇力胶囊有限公司 | Automatic control vacuum-pumping dustproof glue solution insulation barrel |
-
2007
- 2007-11-06 CN CNU2007200302609U patent/CN201134404Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2010121478A1 (en) * | 2009-04-24 | 2010-10-28 | 东莞宏威数码机械有限公司 | Glue-water-defoaming device |
| CN104960802A (en) * | 2015-06-01 | 2015-10-07 | 浙江汇力胶囊有限公司 | Vacuum-pumping dustproof glue solution insulation barrel |
| CN104960778A (en) * | 2015-06-01 | 2015-10-07 | 浙江汇力胶囊有限公司 | Automatic control vacuum-pumping dustproof glue solution insulation barrel |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20081015 Termination date: 20141106 |
|
| EXPY | Termination of patent right or utility model |