JP2799698B2 - Corona discharge electrode structure - Google Patents
Corona discharge electrode structureInfo
- Publication number
- JP2799698B2 JP2799698B2 JP9175996A JP9175996A JP2799698B2 JP 2799698 B2 JP2799698 B2 JP 2799698B2 JP 9175996 A JP9175996 A JP 9175996A JP 9175996 A JP9175996 A JP 9175996A JP 2799698 B2 JP2799698 B2 JP 2799698B2
- Authority
- JP
- Japan
- Prior art keywords
- electrode
- corona discharge
- electrode structure
- portions
- discharge
- 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
Links
Landscapes
- Treatments Of Macromolecular Shaped Articles (AREA)
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、樹脂や紙や金属板
などにコロナ放電照射して表面を改質するコロナ放電処
理などに好適なコロナ放電電極構造に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a corona discharge electrode structure suitable for corona discharge treatment for modifying the surface by irradiating corona discharge to resin, paper, metal plate, or the like.
【０００２】[0002]
【従来の技術】従来、コロナ放電処理電極として例えば
特公昭６４−１１０５５号公報に記載のものが知られて
いる。この従来例は、上下両側縁のみを丸棒状とした平
板状の複数枚のナイフ型電極を、多数枚のプラスチック
製電極保持板のスリットに嵌合させて保持する。すなわ
ち、各電極保持板には、ナイフ型電極のほぼ半分を断面
したような形状（盲端が円形）の多数のスリットが一定
の間隔で設けられている。そして、多数枚の電極保持板
を一定の間隔をおいて並べてプラスチック製ハウジング
に保持し、これら電極保持板と交差するようにその並ん
だスリットに各ナイフ型電極を挿通させることにより、
複数枚のナイフ型電極を多数枚の電極保持板を介して一
定間隔にハウジング内に保持する構造となっている。2. Description of the Related Art Conventionally, for example, a corona discharge treatment electrode described in Japanese Patent Publication No. 64-11055 has been known. In this conventional example, a plurality of knife-shaped electrodes each having a round bar shape only on the upper and lower side edges are fitted and held in slits of a large number of plastic electrode holding plates. That is, in each of the electrode holding plates, a large number of slits each having a shape (a blind end is circular) in which substantially half of the knife-shaped electrode is cross-sectioned are provided at regular intervals. Then, a large number of electrode holding plates are arranged at regular intervals and held in a plastic housing, and each knife-type electrode is inserted through a slit arranged so as to intersect with these electrode holding plates,
The structure is such that a plurality of knife-type electrodes are held in the housing at regular intervals via a number of electrode holding plates.
【０００３】[0003]
【発明が解決しようとする課題】しかし、これによる
と、ナイフ型電極が板状であるため熱により変形する欠
点があった。また、一枚のナイフ型電極が単一の放電部
となるシングル電極を上記のように並べてマルチ電極構
造とするため、部品数が多く、更に、アースロールの曲
面（周面）と一定のギャップをもって対向させるに当た
り、ナイフ型電極は長い板状でしかも一つの放電部につ
き一枚ずつ位置設定しなければならないので、その位置
設定及び電極間隔の調整が難しく、全体として均一な放
電条件にできないとか、均質な表面処理効果が得られな
い等の欠点があった。However, according to this, there is a disadvantage that the knife-type electrode is deformed by heat because it is plate-shaped. In addition, since a single electrode, in which one knife-type electrode is used as a single discharge portion, is arranged as described above to form a multi-electrode structure, the number of parts is large, and the gap between the curved surface (peripheral surface) of the earth roll and a certain gap When facing each other, the knife-type electrode is a long plate and must be positioned one by one for each discharge part, so it is difficult to set the position and adjust the electrode spacing, and it is impossible to achieve uniform discharge conditions as a whole. And a uniform surface treatment effect cannot be obtained.
【０００４】本発明の課題は、このような問題点を解決
し、熱による電極の変形防止、部品点数の削減、電極位
置設定及び電極間隔調整の簡素化を図ることにある。An object of the present invention is to solve such problems and to prevent deformation of electrodes due to heat, reduce the number of parts, and simplify electrode position setting and electrode spacing adjustment.
【０００５】[0005]
【課題を解決するための手段】本発明のコロナ放電電極
構造は、断面逆凸状で保持部材の凹部に嵌合させて保持
するための取付部と、該取付部から一体に逆Ｕ状に分岐
する２つの平行な放電部とを有し、各放電部の先端部分
を、半円以上の丸みをもった膨らみ形状として互いに外
側へ突出させたものである。熱による線膨張に対応させ
るため、取付部は、保持部材の凹部に長さ方向に摺動可
能に嵌合させる。A corona discharge electrode structure according to the present invention has a mounting portion for fitting into and holding a concave portion of a holding member having an inverted convex cross section, and an inverted U shape integrally formed from the mounting portion. It has two parallel discharge portions that branch off, and the tip portion of each discharge portion protrudes outward from each other in a bulged shape having a semicircle or more. In order to cope with linear expansion due to heat, the mounting portion is fitted in the concave portion of the holding member so as to be slidable in the length direction.
【０００６】[0006]
【発明の実施の形態】以下、本発明の一実施例を図面に
基づいて説明する。DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described below with reference to the drawings.
【０００７】図１は１本の電極１を示す。この電極１
は、アルミニュームやステンレス等で一体成形され、断
面逆凸状の取付部２と、この取付部２から一体に逆Ｕ状
に分岐する２つの平行な放電部３・４とを有する。取付
部２の天面２ａは平らであるが、両側面２ｂ・２ｃは弧
状に膨らんでいる。FIG. 1 shows one electrode 1. This electrode 1
Has a mounting portion 2 integrally formed of aluminum, stainless steel, or the like, and having an inverted convex cross section, and two parallel discharge portions 3 and 4 that are integrally branched from the mounting portion 2 in an inverted U shape. The top surface 2a of the mounting portion 2 is flat, but both side surfaces 2b and 2c are bulged in an arc shape.
【０００８】放電部３・４は、取付部２との間にくびれ
部５及び段部６・７を形成して分岐している。放電部３
・４の先端部分３ａ・４ａは、半円以上の丸みをもった
膨らみ形状となって互いに外側へやや突出し、両放電部
３・４の股間内面８も滑らかな丸みをもった逆Ｕ形にな
っている。The discharge portions 3 and 4 are branched by forming a constricted portion 5 and stepped portions 6 and 7 between the discharge portions 3 and 4. Discharge unit 3
The tip portions 3a, 4a of the 4 have a bulging shape having a roundness of a semi-circle or more and slightly project outward from each other, and the crotch inner surfaces 8 of both the discharge portions 3, 4 have a smooth rounded inverted U shape. Has become.
【０００９】図２は、このような電極１を３本使用し
て、プラスチックフィルムのコロナ放電処理のためのコ
ロナ放電電極とした例を示す。図では１枚しか示してい
ないが、ステンレス等による板状の複数枚の保持部材９
が、アースロール１０の軸線方向（図２の紙面に向かっ
て前後）に間隔をおいてそれぞれ碍子１１にボルト止め
されている。各保持部材９には、電極１の取付部２から
くびれ部５の途中までの断面形状に合致した形状の３つ
の凹部１２が所定の間隔で設けられ、これら凹部１２の
中心は、アースロール１０の中心Ｏからの半径が同じ同
一円弧線Ｃ−Ｃ上に位置するようになっている。FIG. 2 shows an example in which three such electrodes 1 are used as a corona discharge electrode for corona discharge treatment of a plastic film. Although only one sheet is shown in the figure, a plurality of plate-like holding members 9 made of stainless steel or the like are used.
Are bolted to the insulator 11 at intervals in the axial direction of the earth roll 10 (front and rear in the plane of FIG. 2). Each holding member 9 is provided with three recesses 12 having a shape corresponding to the cross-sectional shape from the mounting portion 2 of the electrode 1 to the middle of the constriction portion 5 at a predetermined interval. Are located on the same circular arc line CC along the center O.
【００１０】各電極１は、上記のようにアースロール１
０の軸線方向に間隔をもって配置された複数枚の保持部
材９の凹部１２に対して、一端の保持部材９の凹部１２
から順次他の保持部材９の凹部１２へ摺動可能に挿通さ
せることにより、複数枚の保持部材９によって水平に保
持されている。そして、このように各凹部１２に挿通し
て保持された３本の電極１は、同一円弧線Ｃ−Ｃ上にお
いて並列し、それらの放電部３・４の先端部分３ａ・４
ａは、アースロール１０の周面と同じ距離だけ離れて対
向している。Each electrode 1 is connected to the earth roll 1 as described above.
In contrast to the concave portions 12 of the plurality of holding members 9 arranged at intervals in the axial direction of
Are sequentially slidably inserted into the concave portions 12 of the other holding members 9 to be horizontally held by the plurality of holding members 9. The three electrodes 1 thus inserted and held in the respective recesses 12 are arranged in parallel on the same arc line CC, and the tip portions 3a, 4 of the discharge portions 3, 4 are formed.
a is opposed to the peripheral surface of the earth roll 10 by the same distance.
【００１１】このような電極構造において、全電極１に
同時に高電圧を印加すると、全電極１の放電部３・４の
先端部分３ａ・４ａからアースロール１０の周面に向か
って一斉にコロナ放電が生ずる。放電部３・４の先端部
分３ａ・４ａは、半円以上の丸みをもった膨らみ形状と
なって互いに外側へ突出しているので、各先端部分３ａ
・４ａからのコロナ放電はアースロール１０の周方向に
広がり、３本の電極１によるコロナ放電がアースロール
１０の周面上で連続した状態となる。従って、アースロ
ール１０上を案内されるプラスチックフィルムに対する
表面処理効果が良いとともに、ムラなく均質にコロナ放
電処理できる。In such an electrode structure, when a high voltage is applied to all the electrodes 1 at the same time, the corona discharges from the tip portions 3a and 4a of the discharge portions 3.4 and 4 of all the electrodes 1 simultaneously toward the peripheral surface of the earth roll 10. Occurs. The tip portions 3a, 4a of the discharge portions 3, 4 have a bulging shape having a semi-circle or more and protrude outward from each other.
The corona discharge from 4a spreads in the circumferential direction of the earth roll 10, and the corona discharge by the three electrodes 1 is continuous on the circumferential surface of the earth roll 10. Therefore, the surface treatment effect on the plastic film guided on the earth roll 10 is good, and the corona discharge treatment can be performed uniformly and uniformly.
【００１２】各電極１は、２つの平行な放電部３・４を
有し、しかもこれらが断面逆凸状の取付部２から一体に
逆Ｕ状に分岐しているので、従来の板状のものに比べ
て、部品点数を少なくすることができるとともに、熱に
よる変形が少なく、強度も強くなる。また、複数本の電
極１を組み合わせてマルチ電極構造とする場合に、電極
間の間隔を広くしたり狭くして使用することが容易にな
る。更に、各電極１は、保持部材９の凹部１２に対して
長さ方向に摺動可能であるため、熱による線膨張に対応
できる。Each of the electrodes 1 has two parallel discharge portions 3 and 4, and these are integrally branched from the mounting portion 2 having an inverted convex cross section in an inverted U-shape. The number of parts can be reduced as compared with the one, and the deformation due to heat is small, and the strength is increased. Further, when a plurality of electrodes 1 are combined to form a multi-electrode structure, it is easy to use the electrode by increasing or decreasing the interval between the electrodes. Furthermore, since each electrode 1 is slidable in the length direction with respect to the concave portion 12 of the holding member 9, it can cope with linear expansion due to heat.
【００１３】[0013]
【発明の効果】以上説明したように本発明のコロナ放電
電極構造によれば、各電極が２つの平行な放電部を有
し、しかもこれらが断面逆凸状の取付部から一体に逆Ｕ
状に分岐しているので、従来の板状のものに比べて、部
品点数を少なくすることができるとともに、熱による変
形が少なく、強度も強くなる。また、複数本の電極を組
み合わせてマルチ電極構造とする場合に、電極間の間隔
を広くしたり狭くして使用することが容易になる。更
に、平行な２つの放電部の先端部分が、半円以上の丸み
をもった膨らみ形状となって互いに外側へ突出している
ので、その突出分だけ放電表面積が広くなるので、広範
囲にコロナ放電照射でき、プラスチックフィルム等に対
してコロナ傷が生じにくい形状であり、また表面処理効
果が良いとともに、ムラなく均質にコロナ放電処理でき
る。As described above, according to the corona discharge electrode structure of the present invention, each electrode has two parallel discharge portions, and these are integrally formed from the mounting portion having the inverted convex cross section.
As a result, the number of parts can be reduced, the deformation due to heat is reduced, and the strength is increased. In addition, when a multi-electrode structure is formed by combining a plurality of electrodes, it becomes easy to use the electrode by increasing or decreasing the distance between the electrodes. Furthermore, the tip portions of the two parallel discharge portions are bulged with a semi-circle or more and protrude outward from each other, so that the discharge surface area is increased by the amount of the protrusion. It has a shape that is less likely to cause corona damage to a plastic film and the like, has a good surface treatment effect, and enables uniform and uniform corona discharge treatment.
【００１４】各電極を、保持部材の凹部に対して長さ方
向に摺動可能とすれば、熱による線膨張に対応できる。If each electrode is slidable in the length direction with respect to the concave portion of the holding member, it can cope with linear expansion due to heat.
【図面の簡単な説明】[Brief description of the drawings]
【図１】本発明における１本の電極の斜視図である。FIG. 1 is a perspective view of one electrode in the present invention.
【図２】本発明のコロナ放電電極構造の一例を示す側面
図である。FIG. 2 is a side view showing an example of a corona discharge electrode structure of the present invention.
１ 電極 ２ 取付部 ３・４ 放電部 ３ａ・４ａ 先端部分 ９ 保持部材 １２ 凹部 DESCRIPTION OF SYMBOLS 1 Electrode 2 Mounting part 3.4 Discharge part 3a 4a Tip part 9 Holding member 12 Recess
───────────────────────────────────────────────────── フロントページの続き (56)参考文献 特開 平８−111278（ＪＰ，Ａ) 特開 平６−163143（ＪＰ，Ａ) 特開 昭58−46588（ＪＰ，Ａ) 特開 平７−272827（ＪＰ，Ａ) 実開 昭56−29892（ＪＰ，Ｕ) 実開 昭56−112892（ＪＰ，Ｕ) 実開 昭56−110913（ＪＰ，Ｕ) 実開 平１−119190（ＪＰ，Ｕ) (58)調査した分野(Int.Cl.6，ＤＢ名) H01T 19/04 B29C 71/04 C08J 7/00 303──────────────────────────────────────────────────続 き Continuation of front page (56) References JP-A-8-111278 (JP, A) JP-A-6-163143 (JP, A) JP-A-58-46588 (JP, A) JP-A-7-111 272827 (JP, A) Fully open sho 56-29892 (JP, U) Full open sho 56-112892 (JP, U) Full open sho 56-110913 (JP, U) Full open 1-119190 (JP, U) (58) Field surveyed (Int. Cl. 6 , DB name) H01T 19/04 B29C 71/04 C08J 7/00 303
Claims (2)
保持するための取付部と、該取付部から一体に逆Ｕ状に
分岐する２つの平行な放電部とを有し、各放電部の先端
部分を、半円以上の丸みをもった膨らみ形状として互い
に外側へ突出させたことを特徴とするコロナ放電電極構
造。1. A mounting portion for fitting and holding a concave portion of a holding member with an inverted convex cross section, and two parallel discharge portions branching from the mounting portion into an inverted U shape integrally, A corona discharge electrode structure characterized in that the tip portions of the respective discharge portions project outward from each other in a bulged shape having a roundness of at least a semicircle.
可能に嵌合したことを特徴とする請求項１に記載のコロ
ナ放電電極構造。2. The corona discharge electrode structure according to claim 1, wherein the mounting portion is fitted in the concave portion of the holding member so as to be slidable in the length direction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9175996A JP2799698B2 (en) | 1996-03-22 | 1996-03-22 | Corona discharge electrode structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9175996A JP2799698B2 (en) | 1996-03-22 | 1996-03-22 | Corona discharge electrode structure |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH09260027A JPH09260027A (en) | 1997-10-03 |
| JP2799698B2 true JP2799698B2 (en) | 1998-09-21 |
Family
ID=14035481
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP9175996A Expired - Fee Related JP2799698B2 (en) | 1996-03-22 | 1996-03-22 | Corona discharge electrode structure |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2799698B2 (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3400298B2 (en) * | 1997-06-11 | 2003-04-28 | ワイケイケイ株式会社 | Resin composite aluminum profile, heat-insulating aluminum profile, method for producing them, and apparatus used therefor |
| JP3141199B2 (en) * | 1999-04-01 | 2001-03-05 | 春日電機株式会社 | Corona discharge treatment equipment |
| JP2017176927A (en) * | 2016-03-28 | 2017-10-05 | 春日電機株式会社 | Surface processing apparatus |
| CN110001043A (en) * | 2019-03-13 | 2019-07-12 | 常州奥福电子设备有限公司 | Ceramic electrode, coronal structure and corona machine |
-
1996
- 1996-03-22 JP JP9175996A patent/JP2799698B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH09260027A (en) | 1997-10-03 |
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