CN1169584A - Device for cleaning cathode ray tube (CRT) panel - Google Patents
Device for cleaning cathode ray tube (CRT) panel Download PDFInfo
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- CN1169584A CN1169584A CN 97110204 CN97110204A CN1169584A CN 1169584 A CN1169584 A CN 1169584A CN 97110204 CN97110204 CN 97110204 CN 97110204 A CN97110204 A CN 97110204A CN 1169584 A CN1169584 A CN 1169584A
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- rinse water
- filter
- clean
- feed tube
- pump
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Abstract
The present invention relates to a device for cleaning the panel of a cathode-ray tube. The device is provided with a tank to hold cleaning water, at least one pump connected onto the water tank in a parallel manner for pumping the cleaning water from the middle pump, a plurality of filters installed by parallel connection to filter the cleaning water pumped out, at least one nozzle for sprinkling the filtered cleaning water onto the panel, a first delivery pipe connecting the water tank to the pump, a secondary delivery pipe connecting the pump to the filter, a third delivery pipe connecting the filter to the nozzle, and a bypass pipe arranged between the outlet of a filter and the inlet of another filter to make the cleaning water run from one filter into another filter. The device is capable to improve the cleaning and developing efficiency.
Description
The present invention relates to a kind of device that is used to clean the cathode ray tube (CRT) panel, wherein before formation fluorescence membrane on the inner surface of panel, the rinse water of high pressure is ejected on the inner surface of panel.
Usually, color CRT comprises a panel that is formed with fluorescence membrane within it on the surface, one is installed in the shadow mask frame assembly that leaves a preset distance of panel, a funnel that is connected hermetically on this panel, an electron gun that is installed in the funnel neck, and a deflecting coil that is installed in the funnel tapering.
In by above-mentioned such color CRT that constitutes, image can be by making the electron beam deflecting that emits from electron gun so that the mode that it lands on fluorescence membrane forms selectively with deflecting coil.In order to produce the image of a high resolution, electron beam should accurately land on the phosphor dot of fluorescence membrane.
Be used on panel at first cleaning a glass bulb on the panel in the conventional method of spraying fluorescence membrane.Then, an absorbing film of being made up of no fluorescent material forms a predetermined pattern on the inner surface of panel.What then order formed on this absorbing film is the fluorescence membrane of green, red and blue look.At last, by aluminum precipitation is formed the layer of metal reflectance coating on this fluorescence membrane.
During absorbing film formed, predetermined pattern can use photoresist film and form.Then, the graphite slurry is coated on this pattern, makes the dry and development of the structure that obtains again.
In the process of making fluorescence membrane, the formation of absorbing film is the most basic.Therefore, the accurate formation of absorbing film pattern needs a perfect development step of under high pressure using developing solution.
Fig. 1 show one over there the inner surface of plate clean and the step of the absorbing film that develops in make the example of the cleaning device of the routine that the court of a feudal ruler uses.
Referring to Fig. 1, this conventional cleaning device has a water tank 11 that blender 10 is housed, be used for storing developer solution or rinse water (hereinafter only referring to rinse water), a pump 13 that is connected on first feed tube 12 that stretches out from water tank 11, a plurality of a plurality of nozzles 15 that are connected on second feed tube 14 that stretches out from an outlet of pump 13, be set in place the filter 16 in second feed tube 14 between pump 13 and nozzle 15, a plurality of electromagnetically operated valves 17 that are used for controlling the rinse water that ejects from each nozzle 15.
In conventional cleaning device as constituted above, the cleaning of the inner surface of the development of absorbing film or panel 18 is all by pumping the rinse water that is stored in the water tank 11 by pump 13 by filter 16, and the mode on the rinse water that filters is ejected into panel 18 by nozzle 15 the inner surface crossed through filter 16 is carried out.
But the cleaning device of this routine has the problem that can not fully clean, because the once filtration of rinse water can not make exogenous impurity remove fully from rinse water, and the lower discharge pressure that is about 5-7 kilograms per centimeter 2 of pump has also limited high-pressure wash.Another problem that this routine cleaning device has is that this electromagnetically operated valve 17 is damaged under superhigh pressure easily owing to its electronics automatic control structure.
For overcoming the problems referred to above, the purpose of this invention is to provide a kind of cleaning device that can carry out the superhigh pressure cleaning, the firm in structure and reliable operation of this device.
For achieving the above object, the invention provides a kind of device that is used to clean crt panel, comprising: a water tank that is used to store rinse water; The pump that at least one is connected on the water tank in parallel with each other is used for pumping rinse water from water tank; A plurality of filters that are installed in parallel are used for the rinse water that pumps from water tank is filtered; At least one is used for the rinse water of filtering by filter is ejected into nozzle on the panel; One is used for water tank is connected to first feed tube on the pump; One is used for pump is connected to second feed tube on the filter; One is used for filter is connected to the 3rd feed tube on the nozzle; And the bypass pipe between the import of an outlet that is installed in a filter and another filter, be used for making rinse water to flow to another filter from of filter.
Preferably, this crt panel cleaning device also has the device that is used to prevent the rinse water fluctuation on second feed tube at the outlet side place that is installed in pump.Best situation is that the anti-locking apparatus of this fluctuation has an auxiliary water tank.
Preferably, the electromagnetically operated valve of an air-operated control is installed on the 3rd feed tube, is used for controlling the supply of the rinse water of supply nozzle.
Preferably, this crt panel cleaning device also has the device that is used for that the rinse water of discharging from pump is supplied to nozzle or makes the rinse water reflow tank.Best situation is, this flows back to device and has a triple valve that is installed on second feed tube, and one is used for triple valve is connected feedback pipe on the water tank.
Preferably, this crt panel cleaning device also has a transducer, and this transducer has the pressure of a rinse water that is used for detecting supply nozzle and is in a predetermined value or drives the Pressure gauge of a warning device when following when this pressure.Best situation is that this transducer also comprises a thermometer, is used for detecting the temperature of rinse water and drives a warning device in the time of one in this temperature departure preset upper limit and the lower limit.
Preferably, this transducer is installed on one of the second and the 3rd feed tube.
Above-mentioned purpose of the present invention and advantage are by to the detailed description of a most preferred embodiment and will be clearer with reference to accompanying drawing, in the accompanying drawing:
Fig. 1 is the piping diagram that is used for the conventional cleaning device of crt panel;
Fig. 2 is the piping diagram that is used for the cleaning device of the present invention of crt panel.
Referring to Fig. 2, cleaning device of the present invention has a water tank 20 that is used to store rinse water, a blender (not shown) is housed on it, at least one is used to the super-pressure pump 30 that pumps rinse water, be connected in parallel to each other, a plurality ofly be used for filtering rinse water and the installed filters parallel to each other 40 that pumps by pump 30, and at least one is used for this rinse water of crossing filtration is ejected into spray nozzle device on the inner surface of panel 100.First, second and the 3rd feed tube 21,31 and 41 are connected water tank 20 on the pump 30 respectively, pump 30 are connected on the filter 40 and filter 40 be connected on the nozzle 50.
The fluctuation that comprises an auxiliary water tank 61 prevents that part 60 is arranged on second feed tube 31 at the outlet side of pump 30, to prevent from the fluctuation of the rinse water of pump 30 discharges.
Being equipped with one at second feed tube 31 that prevents part 60 extensions from fluctuation is used for a rinse water of discharging from pump 30 is transported to nozzle 50 or this rinse water is flow back into first triple valve 32 that goes the water tank 20.Feed back pipe 34 first triple valve 32 is connected on the water tank 20 so that rinse water flow back in the water tank 20, be installed in first and feed back the flow that the valve 33 of managing on 34 is used for controlling the rinse water that flows back to. Reference number 36 and 37 is represented first and second auxiliary valves, and when first triple valve 32 was out of order, they were just closed or open.
Second triple valve 52 is installed on the 3rd feed tube, the rinse water of filtering through filter 40 to be provided to nozzle 50 or to make current recovery tank 20.Second feeds back pipe 53 is connected second triple valve 52 on the water tank 20, so that flow back to rinse water, valve 45 is installed in second and feeds back on the pipe 53, so that control the flow that flows back to rinse water.Reference number 46 and 47 is represented third and fourth auxiliary valve, and when second triple valve 52 was out of order, they were just closed or open.
At least one electromagnetically operated valve 44 is installed on the 3rd feed tube 41, with the supply of control by the rinse water of nozzle 50 injections.Best, electromagnetically operated valve 44 has the structure of air-operated control.
Operation principle as the cleaning device of the present invention of above-mentioned composition is described as follows.
When rinse water pumped from water tank 20 by driving super-pressure pump 30, this rinse water flow through first and second feed tubes 21 and 31, fed back pipe 34 reflow tanks 20 by first then.This moment, valve 33 was opened.In this case, when inner surface to be cleaned when this or the panel 100 that develops was set at the front of nozzle 50 by a support (not shown), electromagnetically operated valve 44 just was subjected to the manipulation of Pneumatic pressure.Thereby rinse water is just with about 100 kilograms per centimeter
2Or above high-pressure injection is to the inner surface of panel 100, thereby cleans or the inner surface of this panel 100 that develops.At this moment, valve 33 cuts out.Carrying in the said method of rinse water to nozzle 50, exogenous impurity leaches from rinse water by filter 40, and is reduced to predetermined value or when following, transducer 70 just drives a warning device when the pressure of rinse water.
In addition, along with the starting that begins of electromagnetically operated valve 44 since pressure with snap on second feed tube 31 and water hammer may take place.But this phenomenon can prevent by the overflow valve 38 that use is installed in filter 40 fronts on second feed tube 31.This overflow valve 38 can also be installed on the 3rd feed tube 41.
As mentioned above, cleaning device of the present invention can be removed all exogenous impurities by bypass pipe is set between filter from rinse water, can use a plurality of pumps rinse water to be ejected on the inner surface of panel, and can improve the stability of pipeline configuration by the electromagnetically operated valve that air-operated control is installed in the nozzle front with high pressure.In addition, can be by feeding back supply that pipe is back to the rinse water of pump work initial provisioning to control rinse water in the water tank regularly, and can prevent that part from preventing that rinse water is in ducted fluctuation by fluctuation.
The present invention is not limited to the foregoing description, should point out clearly, and under situation about not departing from the scope of the present invention with spirit, anyone in the present technique field can both make various variations to the present invention.
Claims (10)
1. device that is used to clean crt panel comprises:
A water tank that is used to store rinse water;
At least one pump that is connected in parallel with each other on the described water tank, this pump are used for pumping described rinse water from described water tank;
A plurality of filters that are installed in parallel, this filter are used for the described rinse water that pumps from described water tank is filtered;
At least one is used for the described rinse water of filtering by described filter is ejected into nozzle on the panel;
One is used for described water tank is connected to first feed tube on the described pump;
One is used for described pump is connected to second feed tube on the described filter;
One is used for described filter is connected to the 3rd feed tube on the described nozzle; And
Bypass pipe between the import of an outlet that is installed in a filter and another filter, this pipe are used for making described rinse water to flow to another filter from of described filter.
2. a kind of device that is used to clean crt panel described in claim 1 is characterized in that: the outlet side place that this device also is included in described pump is installed in the device that being used on described second feed tube prevents described rinse water fluctuation.
3. a kind of device that is used to clean crt panel described in claim 2 is characterized in that: the anti-locking apparatus of described fluctuation has an auxiliary water tank.
4. a kind of device that is used to clean crt panel described in claim 1, it is characterized in that: the electromagnetically operated valve of an air-operated control is installed on described the 3rd feed tube, is used for controlling the supply to the described rinse water of described nozzle.
5. a kind of device that is used to clean crt panel described in claim 1 is characterized in that: this device comprises that also a described rinse water that is used for discharging from described pump is supplied to described nozzle or makes described rinse water flow back to the device of described water tank.
6. a kind of device that is used to clean crt panel described in claim 5, it is characterized in that: the described device that flows back to has a triple valve that is installed on described second feed tube, and one is used for described triple valve is connected feedback pipe on the described water tank.
7. a kind of device that is used to clean crt panel described in claim 1, it is characterized in that: this device also comprises a transducer, and this transducer has a pressure that is used for detecting the described rinse water of supplying with described nozzle and is in a predetermined value or the Pressure gauge of a warning device of driving when following when this pressure.
8. a kind of device that is used to clean crt panel described in claim 7, it is characterized in that: described transducer also comprises a thermometer, and this thermometer is used for detecting the temperature of described rinse water and drives a warning device in the time of one in this temperature departure preset upper limit and the lower limit.
9. a kind of device that is used to clean crt panel described in claim 7, it is characterized in that: described transducer is installed on one of the described second and the 3rd feed tube.
10. a kind of device that is used to clean crt panel described in claim 8, it is characterized in that: described transducer is installed on one of the described second and the 3rd feed tube.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 97110204 CN1169584A (en) | 1996-03-27 | 1997-03-27 | Device for cleaning cathode ray tube (CRT) panel |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR6034/96 | 1996-03-27 | ||
| CN 97110204 CN1169584A (en) | 1996-03-27 | 1997-03-27 | Device for cleaning cathode ray tube (CRT) panel |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1169584A true CN1169584A (en) | 1998-01-07 |
Family
ID=5171369
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 97110204 Pending CN1169584A (en) | 1996-03-27 | 1997-03-27 | Device for cleaning cathode ray tube (CRT) panel |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1169584A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106098505A (en) * | 2016-08-10 | 2016-11-09 | 昆山国力真空电器有限公司 | Sigmatron pipe cooling system cleans device |
-
1997
- 1997-03-27 CN CN 97110204 patent/CN1169584A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106098505A (en) * | 2016-08-10 | 2016-11-09 | 昆山国力真空电器有限公司 | Sigmatron pipe cooling system cleans device |
| CN106098505B (en) * | 2016-08-10 | 2017-09-05 | 昆山国力电子科技股份有限公司 | Sigmatron pipe cooling system cleaning device |
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