JPH0246623A - Sealing surface washing device of cathode-ray tube envelope - Google Patents
Sealing surface washing device of cathode-ray tube envelopeInfo
- Publication number
- JPH0246623A JPH0246623A JP63196886A JP19688688A JPH0246623A JP H0246623 A JPH0246623 A JP H0246623A JP 63196886 A JP63196886 A JP 63196886A JP 19688688 A JP19688688 A JP 19688688A JP H0246623 A JPH0246623 A JP H0246623A
- Authority
- JP
- Japan
- Prior art keywords
- panel
- roller
- water
- sealing surface
- cleaning
- 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.)
- Pending
Links
- 238000007789 sealing Methods 0.000 title claims abstract description 22
- 238000005406 washing Methods 0.000 title abstract description 17
- 239000007779 soft material Substances 0.000 claims abstract description 6
- 238000004140 cleaning Methods 0.000 claims description 55
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 44
- 239000002253 acid Substances 0.000 abstract description 23
- 238000010521 absorption reaction Methods 0.000 abstract description 10
- 239000007788 liquid Substances 0.000 abstract description 10
- 230000000694 effects Effects 0.000 abstract description 6
- 239000000243 solution Substances 0.000 description 6
- 239000011521 glass Substances 0.000 description 4
- KRHYYFGTRYWZRS-UHFFFAOYSA-N Fluorane Chemical compound F KRHYYFGTRYWZRS-UHFFFAOYSA-N 0.000 description 2
- 238000010292 electrical insulation Methods 0.000 description 2
- DDFHBQSCUXNBSA-UHFFFAOYSA-N 5-(5-carboxythiophen-2-yl)thiophene-2-carboxylic acid Chemical compound S1C(C(=O)O)=CC=C1C1=CC=C(C(O)=O)S1 DDFHBQSCUXNBSA-UHFFFAOYSA-N 0.000 description 1
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 1
- 230000002745 absorbent Effects 0.000 description 1
- 239000002250 absorbent Substances 0.000 description 1
- 230000002378 acidificating effect Effects 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- 239000007864 aqueous solution Substances 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 239000007795 chemical reaction product Substances 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 239000005383 fluoride glass Substances 0.000 description 1
- 230000001771 impaired effect Effects 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Landscapes
- Cleaning In General (AREA)
- Cleaning And De-Greasing Of Metallic Materials By Chemical Methods (AREA)
- Manufacture Of Electron Tubes, Discharge Lamp Vessels, Lead-In Wires, And The Like (AREA)
Abstract
Description
【発明の詳細な説明】
［産業上の利用分野〕
この発明は陰極線管外囲器を構成するパネルまたはファ
ンネルのシール面洗浄装置に関するものである。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a sealing surface cleaning device for a panel or funnel constituting a cathode ray tube envelope.
［従来の技術］
第３図は陰極線管（２０）の概略断面図である、同図に
おいて、（２１）はパネル、（２２）はファンネル、（
２３）はネックである。ネック（２３）はファンネル（
２２）と一体に形成されている。（２４）はフリットガ
ラスである。このフリットガラス（２４）でパネル（２
１）とファンネル（２２）とが封着されている。（２５
）は蛍光面で、パネル（２１）の内面に形成され、アル
ミ膜を有している。（２６）はシャドウマスク、（２７
）は導電膜でファンネル（２２）の内面に形成されてい
る。（２８）は導通バネでシャドウマスク（２６）と導
電膜（２７）とを電気的に接続している。（２９）はア
ノードボタン、（３０）は電子銃である。[Prior Art] FIG. 3 is a schematic cross-sectional view of a cathode ray tube (20). In the figure, (21) is a panel, (22) is a funnel, (
23) is the bottleneck. The neck (23) is funnel (
22). (24) is frit glass. Panel (2) with this frit glass (24)
1) and the funnel (22) are sealed. (25
) is a fluorescent screen, which is formed on the inner surface of the panel (21) and has an aluminum film. (26) is a shadow mask, (27
) is a conductive film formed on the inner surface of the funnel (22). A conductive spring (28) electrically connects the shadow mask (26) and the conductive film (27). (29) is an anode button, and (30) is an electron gun.
第３図に示された陰極線管を動作させるためには、アノ
ードボタン（２９）より約３０ＫＶの高電圧を印加する
ことが必要である０通常、陰極線管の外面はアース電位
とされるため、パネル（２１）、ファンネル（２２）、
フリットガラス（２４）の内外面では上記３０にＶの電
位差を生じることになり、この間の電気的絶縁の良否は
非常に重要な問題である。パネル（２１）、ファンネル
（２２）のシール面に汚れがあるままフリットガラス（
２４）で封着されると、この封着部での電気絶縁付が損
なわれることがあり、時に動作中に絶縁破壊を起こし、
完全に不良となることはもちろん、高圧スパークにより
テレビジョンセットの火災を招くおそれがある。したが
って、パネル（２１）をファンネル（２２）との封着前
にこれらのシール面を効果的に洗浄することは封着部の
電気的信頼性を向上させるための重要な工程である。In order to operate the cathode ray tube shown in Fig. 3, it is necessary to apply a high voltage of about 30 KV from the anode button (29).Normally, the outer surface of the cathode ray tube is at ground potential, so Panel (21), funnel (22),
A potential difference of V is generated between the inner and outer surfaces of the frit glass (24) at the above-mentioned 30, and the quality of the electrical insulation between them is a very important issue. There is dirt on the sealing surfaces of the panel (21) and funnel (22).
24), the electrical insulation at this sealed part may be impaired, and sometimes dielectric breakdown may occur during operation.
Not only will it be completely defective, but the high-voltage sparks may cause a fire in the television set. Therefore, effectively cleaning these sealing surfaces before sealing the panel (21) with the funnel (22) is an important step for improving the electrical reliability of the sealed portion.
第４図は従来の一般的なシール面洗浄装置を説明する断
面図である。同図において、（２１）はパネル、（２ｌ
ｂ）はパネルシール面、（２１ｃ）はパネル側壁部、
（１）は酸洗浄槽で内部に酸洗浄液（２）が入っている
。（３）は水洗浄槽で内部に洗浄水（４）が入っている
。（５）は洗浄・搬送用ローラで、酸洗浄槽（１）、水
洗浄槽（３）の内部に複数個並列配置され、回転駆動機
構（図示せず）に連結されている。上記洗浄・搬送用ロ
ーラ（５）は酸洗浄槽（１）の酸洗浄液（２）および水
洗浄槽（３）の洗浄水（４）に部分的に浸漬された状態
で配置されている。また、上記酸洗浄液（２）には一般
に、フッ化水素酸や酸性フッ化アンモニウム水溶液のよ
うなガラス侵食溶解性液体が使われる。FIG. 4 is a sectional view illustrating a conventional general seal surface cleaning device. In the same figure, (21) is a panel, (2l
b) is the panel sealing surface, (21c) is the panel side wall part,
(1) is an acid cleaning tank which contains an acid cleaning solution (2). (3) is a water washing tank which contains washing water (4). (5) is a cleaning/conveying roller, and a plurality of rollers are arranged in parallel inside the acid cleaning tank (1) and the water cleaning tank (3), and are connected to a rotation drive mechanism (not shown). The cleaning/conveying roller (5) is disposed so as to be partially immersed in the acid cleaning liquid (2) of the acid cleaning tank (1) and the cleaning water (4) of the water cleaning tank (3). Further, as the acid cleaning liquid (2), a glass-eroding and dissolving liquid such as hydrofluoric acid or an acidic ammonium fluoride aqueous solution is generally used.
このような装置の動作を説明すると、まずパネル（２１
）は回転駆動機構により駆動された洗浄・搬送用ローラ
（５）の回転により、酸洗浄槽（１）の上部を移動する
と同時に、洗浄・搬送用ローラ（５）の表面に付着した
酸洗浄液（２）がパネル（２１）のシール面（２ｌ ｂ
）に付着し、酸洗浄液（２）の作用によりパネル（２１
）のシール面（２ｌ ｂ）は侵食溶解されて汚れが除去
される。ついでパネル（２１）は水洗浄槽（３）に移動
し、洗浄水（４）が酸洗浄槽（１）の場合と同様に、洗
浄・搬送用ローラ（５）を介してパネル（２１）のシー
ル面に接触し、酸洗浄液（２）を除去するのである。To explain the operation of such a device, first, the panel (21
) is moved over the top of the acid cleaning tank (1) by the rotation of the cleaning/conveyance roller (5) driven by a rotational drive mechanism, and at the same time the acid cleaning liquid (5) attached to the surface of the cleaning/conveyance roller (5) is removed. 2) is the sealing surface (2l b) of the panel (21)
) and is removed by the action of the acid cleaning solution (2).
The sealing surface (2l b) of ) is eroded and dissolved to remove dirt. Next, the panel (21) is moved to the water cleaning tank (3), and the cleaning water (4) is applied to the panel (21) via the cleaning/conveying roller (5), as in the case of the acid cleaning tank (1). It contacts the sealing surface and removes the acid cleaning liquid (2).
［発明が解決しようとする課題１
上記従来装置においては、パネル（２１）が酸洗浄槽（
１）を通過する際、酸洗浄液（２）がパネルシール面（
２ｌ ｂ）に付着するだけでなく、酸洗浄液（２）の表
面張力およびパネル（２１）の移動のための洗浄液巻き
上げによって、酸洗浄液（２）がパネル側壁部（２１ｃ
）の一部にまで付着し、これが次の水洗浄槽（３）での
洗浄水（４）によっても除去しきれないでパネル側壁部
（２１Ｃ）の一部に残留するという欠点があった。[Problem to be Solved by the Invention 1] In the above conventional device, the panel (21) is connected to the acid cleaning tank (
When passing through 1), the acid cleaning solution (2) touches the panel seal surface (
In addition to adhering to the panel side wall (21c), the acid cleaning liquid (2) also adheres to the panel side wall (21c) due to the surface tension of the acid cleaning liquid (2) and the lifting up of the cleaning liquid to move the panel (21).
), which could not be completely removed by the next washing water (4) in the water washing tank (3) and remained on a part of the panel side wall (21C).
この残留した酸洗浄液（２）はガラスとの反応生成物と
してパネル側壁部（２１ｃ）に沈着し、パネル（２１）
、ファンネル（２２）の封着に際して、フッリドガラス
（２４）の正常な溶着を阻害し、また完成された陰極線
管となったあとも管内で一部沈着物が剥離し、マスクの
目詰まりとなって蛍光面品位を低下させることがある。This residual acid cleaning solution (2) is deposited on the panel side wall (21c) as a reaction product with the glass, and the panel (21)
, when sealing the funnel (22), the normal welding of the fluoride glass (24) is inhibited, and even after the cathode ray tube is completed, some deposits peel off inside the tube, clogging the mask. It may deteriorate the quality of the phosphor screen.
従来よりこのような欠点を改善するため、ローラにスポ
ンジなどの軟質材を用いたりして水洗効果の向上を図っ
ているが充分とはいえない。Conventionally, attempts have been made to improve the washing effect by using soft materials such as sponges for the rollers in order to overcome these drawbacks, but these efforts have not been sufficient.
この発明は上記従来の問題点を解決するためになされた
もので、パネル側壁部（２１ｃ）に残留する酸洗浄液（
２）を完全に除去することはもとより、パネル側壁部（
２１ｃ）も含めたシール面の洗浄を可能とする陰極線管
外囲器のシール面洗浄装置を提供することを目的とする
。This invention was made to solve the above conventional problems, and the acid cleaning solution remaining on the panel side wall (21c)
2), as well as completely removing the panel side wall (
An object of the present invention is to provide a sealing surface cleaning device for a cathode ray tube envelope, which makes it possible to clean the sealing surfaces including 21c).
この発明における陰極線管外囲器のシール面洗浄装置は
、洗浄・搬送用ローラとして、隣接するローラより外径
を大きくしてその外周上面を上方へ配置し、かつスポン
ジのような吸水性軟質材からなる吸水ローラを具備した
ものである。The device for cleaning the sealing surface of a cathode ray tube envelope according to the present invention has a cleaning/conveying roller that has a larger outer diameter than an adjacent roller and is arranged with its outer circumferential upper surface facing upward, and is made of a water-absorbing soft material such as a sponge. It is equipped with a water absorbing roller consisting of.
［作用〕
この発明における吸水ローラは、洗浄・搬送中にパネル
の重量で部分的に変形し、この時はき出される洗浄水で
パネルのシール面のみならず、その側壁部にも充分な量
の洗浄水を接触させ、より広い範囲で洗浄効果を得るこ
とができる。[Function] The water absorbing roller of the present invention is partially deformed by the weight of the panel during cleaning and transportation, and the cleaning water discharged at this time cleans not only the sealing surface of the panel but also the side wall of the panel in a sufficient amount. By bringing water into contact with the product, you can obtain a cleaning effect over a wider area.
〔実施例〕 以下、この発明の一実施例を図にもとすいて説明する。〔Example〕 An embodiment of the present invention will be described below with reference to the drawings.
第１図において、（６）は吸水ローラである。この吸水
ローラ（６）は水洗浄槽（３）内に従来のローラ（５）
と交互の関係で並列配置されている。この吸水ローラ（
６）はスポンジなどの吸水性軟質材からなっている。ま
た第２図に示すように、この吸水ローラ（６）は従来の
ローラ（５）よりも外径を大きくしてあり、このため吸
水ローラ（６）の外周上面（８）は隣接するローラ（５
）の外周上面（７）よりｄの分だけ高さ方向で少なくと
も上方へ位置するようになっている次に上記構成の動作
について説明する。In FIG. 1, (6) is a water absorption roller. This water absorbing roller (6) is installed inside the water washing tank (3) as compared to the conventional roller (5).
are arranged in parallel in an alternating relationship. This water absorption roller (
6) is made of water absorbent soft material such as sponge. Further, as shown in FIG. 2, this water absorbing roller (6) has a larger outer diameter than the conventional roller (5), so that the outer circumferential upper surface (8) of the water absorbing roller (6) 5
) is positioned at least upward in the height direction by an amount d from the outer circumferential upper surface (7).Next, the operation of the above structure will be explained.
第１図および第２図においてパネル（２１）が吸水ロー
ラ（６）の上方へ移動してきたとき、パネルシール面（
２ｌ ｂ）はローラ（５）の外周上面（７）の高さにあ
るため、吸水ローラ（６）はパネル（２１）の重量で外
周上面（８）の高さよりほぼｄの分だけ変形し部分的に
押しつぶされることになり、このとき吸水ローラに含ま
れていた洗浄水（４）がはき出され、パネルシール面（
２１ｂ）およびパネル側壁部（２１ｃ）の下部に充分な
水量で接触し、パネル側壁部（２１ｃ）に付着していた
酸洗浄液（２）は完全に除去されることになる。In FIGS. 1 and 2, when the panel (21) moves above the water absorption roller (6), the panel seal surface (
2l b) is at the height of the upper outer surface (7) of the roller (5), so the water absorbing roller (6) is deformed by approximately d from the height of the upper outer surface (8) due to the weight of the panel (21). At this time, the cleaning water (4) contained in the water absorption roller is forced out and the panel seal surface (
21b) and the lower part of the panel side wall (21c) with a sufficient amount of water, and the acid cleaning liquid (2) adhering to the panel side wall (21c) is completely removed.
なお、上記実施例では水洗浄槽（３）について説明した
が水洗部のみに制約されることはなく、酸洗浄槽（１）
においてこの発明を適用した場合には、パネル側壁部（
２１ｃ）においても酸洗浄が可能で、この場合、水洗浄
槽（３）での吸水ローラ（６）と従来ローラ（５）との
外径差ｄを酸洗浄槽（１）でのそれよりも大きくし、洗
浄水のローラよりのはき出しをより多くすることにより
シール面の広い範囲にわたる効率的な洗浄が可能となる
。In addition, although the water washing tank (3) was explained in the above embodiment, it is not limited to the water washing part only, and the acid washing tank (1)
When this invention is applied to the panel side wall (
21c) is also possible, and in this case, the difference in outer diameter d between the water absorbing roller (6) and the conventional roller (5) in the water cleaning tank (3) is greater than that in the acid cleaning tank (1). By increasing the size and allowing more cleaning water to be discharged from the roller, efficient cleaning over a wide range of the sealing surface becomes possible.
また、これまではパネルについてのみ説明したが、ファ
ンネルのシール面洗浄においても同様の効果のあること
は明白である。Further, although only the panel has been described so far, it is clear that the same effect can be achieved in cleaning the sealing surface of the funnel.
［発明の効果］
以上の説明かられかるようにこの発明によれば、洗浄・
搬送用ローラとして、隣接するローラより外周上面を高
くしてかつ、スポンジのような吸水性軟質材からなる吸
水ローラを配置したので、この吸水ローラがパネルの重
量で部分的に変形しこのときはき出される洗浄水でパネ
ルのシール面のみならず、側壁部にも充分な量の洗浄水
を接触させることができ、より広い範囲で洗浄効果を得
ることができる。[Effect of the invention] As can be seen from the above explanation, according to the present invention, cleaning and
As the transport roller, we installed a water absorbing roller made of a sponge-like water-absorbing soft material with the upper surface of the outer periphery higher than the adjacent rollers, so that the water absorbing roller partially deforms due to the weight of the panel and does not come out at this time. A sufficient amount of cleaning water can be brought into contact not only with the sealing surface of the panel but also with the side wall portion, making it possible to obtain a cleaning effect over a wider area.
第１図はこの発明の実施例による洗浄装置を示す正面断
面図、第２図はこの発明によるローラの詳細断面図、第
３図は陰極線管の概略構造を示す・断面図、第４図は従
来の洗浄装置を示す正面断面図である。
図において、（１）は酸洗浄層、（２）は酸洗浄液、（
３）は水洗浄層、（４）は洗浄水、（５）はローラ、（
６）は吸水ローラである。
なお、図中同一符号は同一もしくは相当部分を示す。
第１図
第２図
２１、FIG. 1 is a front cross-sectional view showing a cleaning device according to an embodiment of the invention, FIG. 2 is a detailed cross-sectional view of a roller according to the invention, FIG. 3 is a cross-sectional view showing the schematic structure of a cathode ray tube, and FIG. FIG. 2 is a front sectional view showing a conventional cleaning device. In the figure, (1) is the acid cleaning layer, (2) is the acid cleaning solution, (
3) is a water washing layer, (4) is washing water, (5) is a roller, (
6) is a water absorption roller. Note that the same reference numerals in the figures indicate the same or corresponding parts. Figure 1 Figure 2 21,
Claims (1)
の洗浄・搬送用ローラとを備え、前記ローラの少なくと
も一つを、吸水性軟質材とし、かつその外周上面が隣接
するローラより少なくとも上方へ位置するローラを備え
たことを特徴とする陰極線管外囲器のシール面洗浄装置
。(1) A cleaning tank and a plurality of cleaning/conveying rollers arranged in parallel within the cleaning layer, at least one of the rollers being made of a water-absorbing soft material, and the upper surface of the outer periphery of the roller being adjacent to the roller. 1. A sealing surface cleaning device for a cathode ray tube envelope, comprising a roller positioned at least upwardly.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63196886A JPH0246623A (en) | 1988-08-06 | 1988-08-06 | Sealing surface washing device of cathode-ray tube envelope |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63196886A JPH0246623A (en) | 1988-08-06 | 1988-08-06 | Sealing surface washing device of cathode-ray tube envelope |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0246623A true JPH0246623A (en) | 1990-02-16 |
Family
ID=16365290
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP63196886A Pending JPH0246623A (en) | 1988-08-06 | 1988-08-06 | Sealing surface washing device of cathode-ray tube envelope |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0246623A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0671043A (en) * | 1992-08-04 | 1994-03-15 | Japax Inc | Device for cleaning coin |
-
1988
- 1988-08-06 JP JP63196886A patent/JPH0246623A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0671043A (en) * | 1992-08-04 | 1994-03-15 | Japax Inc | Device for cleaning coin |
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