JP2729501B2 - Method of applying high voltage to rotating metal roller - Google Patents
Method of applying high voltage to rotating metal rollerInfo
- Publication number
- JP2729501B2 JP2729501B2 JP6915789A JP6915789A JP2729501B2 JP 2729501 B2 JP2729501 B2 JP 2729501B2 JP 6915789 A JP6915789 A JP 6915789A JP 6915789 A JP6915789 A JP 6915789A JP 2729501 B2 JP2729501 B2 JP 2729501B2
- Authority
- JP
- Japan
- Prior art keywords
- metal roller
- rotating metal
- high voltage
- rotating
- coating
- 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
- Application Of Or Painting With Fluid Materials (AREA)
- Nozzles (AREA)
- Coating Apparatus (AREA)
- Manufacturing Of Magnetic Record Carriers (AREA)
Description
【発明の詳細な説明】 〔産業上の利用分野〕 本発明は塗布方法、特に写真感光材料及び記録材料の
塗布液の塗布方法に用いられる、連続走行する帯状可撓
性支持体を回転金属ローラで支持し、該回転金属ローラ
に高電圧を印加し、該回転金属ローラ上で前記支持体上
に塗布液を塗布するのに用いられる回転金属ローラの高
電圧印加方法に関するものである。DETAILED DESCRIPTION OF THE INVENTION [Industrial Application Field] The present invention relates to a continuously moving belt-shaped flexible support used as a coating method, in particular, a coating method of a coating liquid for a photographic photosensitive material and a recording material. The present invention relates to a method for applying a high voltage to a rotating metal roller used for applying a high voltage to the rotating metal roller and applying a coating liquid on the support on the rotating metal roller.
従来、感光材料等の塗布に用いられる回転金属ローラ
への高電圧印加方法は、第２図に示すように連続走行す
る帯状可撓性支持体13であるプラスチックフイルム上に
注液器11より液体を塗布する直前において、回転金属ロ
ーラ15と塗布液架橋14との間を電気的に絶縁して、電
界、若しくは磁界を作用させて塗布する方法が特公昭46
−27423号，特公昭49−7050号各公報に開示されてい
る。Conventionally, a method of applying a high voltage to a rotating metal roller used for coating a photosensitive material or the like is as follows: a liquid is applied from a liquid injector 11 onto a plastic film, which is a belt-shaped flexible support 13 that runs continuously as shown in FIG. Immediately before coating, a method is known in which the rotary metal roller 15 and the coating liquid bridge 14 are electrically insulated from each other and an electric or magnetic field is applied to apply the coating.
No. 27423 and JP-B-49-7050.
しかしながら、この方法の実施には、特公昭46−2742
3号公報に示すように、回転金属ローラの軸受としてボ
ールベアリングを用いており、カイそれにより、回転金
属ローラに伝達される振動は３μｍ程度あり、回転金属
ローラの回転のフレは10μｍ程度もあり、感光材料のよ
うな精密薄層高速塗布には問題であった。However, the implementation of this method requires the use of JP-B-46-2742.
As shown in Japanese Patent Publication No. 3 (1999), a ball bearing is used as a bearing for the rotating metal roller. The vibration transmitted to the rotating metal roller is about 3 μm, and the rotation deflection of the rotating metal roller is about 10 μm. However, there has been a problem in high-precision thin layer coating such as photosensitive materials.
またスリップリングがブラシ型を用いるので、実際に
高速度で長時間適用出来る最大電圧は200V程度で、必要
な高電圧例えば1000V以上の印加は不可能であった。Further, since the slip ring uses a brush type, the maximum voltage that can be applied for a long time at a high speed is about 200 V, and it is impossible to apply a necessary high voltage, for example, 1000 V or more.
本発明は上記問題点を解決し、精密薄層高速塗布に必
要な回転金属ローラの軸受精度を保ち、高速度で長時間
適用出来る最大電圧を数kvに高めることによって、更に
精密薄層高速塗布を実現出来る回転金属ローラの高電圧
印加方法を提供することにある。The present invention solves the above problems, maintains the bearing accuracy of the rotating metal roller required for high-precision thin-layer high-speed coating, and increases the maximum voltage that can be applied at high speed for a long time to several kv, thereby further applying high-precision thin-layer high-speed coating. It is an object of the present invention to provide a method of applying a high voltage to a rotating metal roller which can realize the above.
本発明の上記目的は、連続走行する帯状可撓性支持体
を回転金属ローラで支持し、該回転金属ローラに高電圧
を印加する方法において、該回転金属ローラのジャーナ
ル部分にセラミックによる絶縁被覆して施して流体軸受
で支軸し、更に該軸を延長した回転部分に接続端子とし
てブラシ型スリップリング以外のものを介して直流高電
圧を接続することを特徴とする回転金属ローラへの高電
圧印加方法によって達成される。The object of the present invention is to provide a method of supporting a continuously running belt-shaped flexible support with a rotating metal roller and applying a high voltage to the rotating metal roller, wherein the journal portion of the rotating metal roller is coated with insulating ceramic. A high-voltage to the rotating metal roller, wherein a DC high voltage is connected as a connection terminal to a rotating part having the shaft extended by a fluid bearing and a connection terminal other than a brush type slip ring. This is achieved by the application method.
本発明における回転金属ローラのジャーナル部分にセ
ラミックによる絶縁材料を施すとは、セラミックの材料
は特に限定されないが、一般的には酸化アルミニュム
（Al2O3）または酸化チタン等の粒子（粒径30〜40μ
ｍ）をプラズマ溶射により被覆させたものが好ましい。
被覆層の厚さとしては0.5〜1.5mmが適当である。The application of an insulating material made of ceramic to the journal portion of the rotating metal roller in the present invention means that the material of the ceramic is not particularly limited, but particles of aluminum oxide (Al 2 O 3 ) or titanium oxide (particle diameter 30) are generally used. ~ 40μ
Preferably, m) is coated by plasma spraying.
An appropriate thickness of the coating layer is 0.5 to 1.5 mm.
本発明における流体軸受とは、油圧による静圧ジャー
ナル軸受けをいう。The fluid bearing in the present invention refers to a hydrostatic journal bearing by hydraulic pressure.
本発明の場合、回転金属ローラの軸を延長した回転部
分と直流高電圧電源の接続端子としてブラシ型スリップ
リング以外のものを介するこということは、接続端子と
して精密ボールベアリングそのものをスリップリングと
して用いるか、又は水銀を封入した水銀式スリップリン
グを用いることをいう。In the case of the present invention, the fact that the rotating metal roller has an extended rotating shaft and a connection terminal other than the brush type slip ring as the connection terminal for the DC high voltage power supply is used, the precision ball bearing itself is used as the connection terminal as the slip ring. Or using a mercury slip ring containing mercury.
本発明において直流高電圧電源を接続するということ
は、特に感光材料等を塗布する場合は直流電源が好まし
く、印加電圧の使用範囲は0.5〜3kvが適当である。In the present invention, the connection of a DC high voltage power supply means that a DC power supply is preferable especially when a photosensitive material or the like is applied, and the application range of the applied voltage is suitably 0.5 to 3 kv.
本発明の実施態様を図を用いて詳しく説明する。第１
図において本発明は帯状可撓性支持体６を回転金属ロー
ラ１で支持し、該回転金属ローラ１に高電圧を印加し
て、該回転金属ローラ上で前記支持体上に塗布液を高速
塗布する方法において、該回転金属ローラ１のジャーナ
ル部分７にセラミックによる絶縁被覆８を施して、流体
軸受である静圧ジャーナル軸受２で支持し、更に該軸を
延長した回転部分に接続端子としてブラシ型スリップリ
ング以外のもの、本実施態様では精密ボールベアリング
４を介して直流高電圧電源に接続することを特徴として
いる。An embodiment of the present invention will be described in detail with reference to the drawings. First
In the drawing, the present invention supports a strip-shaped flexible support 6 with a rotating metal roller 1 and applies a high voltage to the rotating metal roller 1 to apply a coating liquid on the rotating metal roller at a high speed. In this method, the journal portion 7 of the rotating metal roller 1 is coated with an insulating coating 8 made of ceramic and supported by a hydrostatic journal bearing 2 which is a fluid bearing. This embodiment is characterized in that it is connected to a DC high-voltage power supply via a precision ball bearing 4 other than the slip ring.
本発明において、回転金属ローラのジャーナル部分に
セラミックによる絶縁被覆を施して、流体軸受で支軸す
ることによって、先ず、軸受はバックアップローラより
絶縁される。In the present invention, the journal portion of the rotating metal roller is provided with an insulating coating made of ceramic and supported by a fluid bearing, so that the bearing is first insulated from the backup roller.
絶縁被覆が無い場合は流体軸受の油膜が非常に薄いた
めに導通状態になり（例えば電気抵抗で20Ω程度）、高
電圧印加が出来ない。If there is no insulating coating, the oil film of the fluid bearing is very thin, so that it becomes conductive (for example, about 20Ω in electrical resistance), and high voltage cannot be applied.
又回転金属ローラに絶縁被覆を施すことによって、高
電圧が印加されたローラとの接触による人体への電撃を
防止する効果もある。In addition, applying an insulating coating to the rotating metal roller also has the effect of preventing electric shock to the human body due to contact with the roller to which a high voltage is applied.
流体軸受で支軸する場合、回転金属ローラに伝達され
る振動は軸受がボールベアリングの場合約３μｍであっ
たものが0.5μｍに減じ、又、回転金属ローラのフレは
ボールベアリングの場合10μｍだったものが２μｍに減
じるので、写真感光材料のような精密薄層高速塗布の場
合の精度が充分に維持される。When the shaft was supported by a fluid bearing, the vibration transmitted to the rotating metal roller was reduced from about 3 μm when the bearing was a ball bearing to 0.5 μm, and the deflection of the rotating metal roller was 10 μm when the ball bearing was used. Since the thickness is reduced to 2 μm, the accuracy in the case of high-precision thin-layer high-speed coating such as a photographic material is sufficiently maintained.
また、本発明の軸を延長した回転部分の接続端子とし
て、ブラシ型スリップリング以外のものとして精密ボー
ルべアリング又は水銀を封入した水銀式スリップリング
を用いて直流高電圧電源を接続することにより、従来の
ブラシ型スリップリングの場合は高速度長時間運転時に
適用可能な最大電圧が200Vであったのが、3000V迄の印
加電圧が可能となった。In addition, by connecting a DC high-voltage power supply using a precision ball bearing or a mercury-type slip ring filled with mercury other than the brush type slip ring as a connection terminal of a rotating part extending the shaft of the present invention, In the case of the conventional brush-type slip ring, the maximum voltage applicable at the time of high-speed long-time operation was 200 V, but the applied voltage up to 3000 V has become possible.
実施例−１ 第１図において、回転金属ローラとして、直径150φm
mのアルミニウム製ローラを用い、その表面に酸化アル
ミニウム（Al2O3）粒子（粒子30〜40μｍ）をプラズマ
溶射を行い、支持体と接する面に0.4mm,ジャーナル部分
に1mmのセラミックによる絶縁被覆を施した。更に該軸
を延長した回転部分の接続端子として精密ポールベアリ
ングを用いて直流高圧電源（TREK社製Model 664）をケ
ーブルに接続したところ、回転金属ローラの振動は0.5
μm,回転のフレは２μｍに減じ、10kvを印加した時でも
過電流（20mA以上）は流れなかった。Example 1 In FIG. 1, the diameter of the rotating metal roller was 150 φm.
Plasma spraying of aluminum oxide (Al 2 O 3 ) particles (particles 30 to 40 μm) on the surface of a roller made of aluminum with a thickness of 0.4 mm on the surface in contact with the support and 1 mm on the journal with 1 mm ceramic coating Was given. Furthermore, when a DC high-voltage power supply (Model 664 manufactured by TREK) was connected to the cable using a precision pole bearing as a connection terminal of a rotating part extending the shaft, the vibration of the rotating metal roller was 0.5
μm, rotation deflection was reduced to 2 μm, and no overcurrent (20 mA or more) flowed even when 10 kv was applied.
比較例−１ 従来のジャーナル部分を絶縁被覆せずに軸受延長部回
転部分に精密ボールベアリングを用い、10kvを印加した
ところ、過電流20mAが流れ、高電圧印加は不可能であっ
た。Comparative Example-1 When a precision ball bearing was applied to the rotating portion of the bearing extension without applying insulation to the conventional journal portion, an overcurrent of 20 mA flowed when a 10 kv was applied, and high voltage application was impossible.
本発明の回転金属ローラの高電圧印加方法により、回
転金属ローラの軸受精度が充分に保ちたれ、高速度で長
時間の連続運転でも適用出来る電圧が数kvまで高めるこ
とが可能となり、安定した精密高速薄層塗布を可能にす
ることができた。By the method of applying a high voltage to the rotating metal roller of the present invention, the bearing accuracy of the rotating metal roller can be sufficiently maintained, and the voltage applicable to continuous operation at a high speed for a long time can be increased to several kv, thereby achieving stable precision. High speed thin layer coating was enabled.
第１図は本発明の回転金属ローラへの高電圧印加方法の
一実施例の部分正面図、第２図は本発明の回転金属ロー
ラへの高電圧印加方法を適用した塗布方法の一実施例の
側面図である。 １……回転金属ローラ ２……静圧ジャーナル軸受 ３……直流電圧電源 ４……精密ボールベアリング ５……油圧配管、６……支持体 ７……ジャーナル部分、８……絶縁被覆 11……注液器、12……塗布液 13……支持体、14……塗布液架橋 15……回転金属ローラ 16……直流高圧電源FIG. 1 is a partial front view of one embodiment of a method for applying a high voltage to a rotating metal roller of the present invention, and FIG. 2 is an embodiment of a coating method to which the method of applying a high voltage to a rotating metal roller of the present invention is applied. FIG. DESCRIPTION OF SYMBOLS 1 ... Rotating metal roller 2 ... Static pressure journal bearing 3 ... DC voltage power supply 4 ... Precision ball bearing 5 ... Hydraulic piping, 6 ... Support body 7 ... Journal part, 8 ... Insulation coating 11 ... Injector, 12 coating liquid 13 support, 14 coating liquid bridging 15 rotating metal roller 16 DC high-voltage power supply
Claims (1)
ローラで支持し、該回転金属ローラに高電圧を印加する
方法において、該回転金属ローラのジャーナル部分にセ
ラミックによる絶縁被覆を施して流体軸受で支軸し、更
に該軸を延長した回転部分に接続端子としてブラシ型ス
リップリング以外のものを介して直流高電圧電源を接続
することを特徴とする回転金属ローラへの高電圧印加方
法。1. A method in which a continuously running belt-shaped flexible support is supported by a rotating metal roller and a high voltage is applied to the rotating metal roller. A method of applying a high voltage to a rotating metal roller, wherein a DC high voltage power supply is connected to a rotating part having a shaft extended with a fluid bearing and further extending the shaft via a connection terminal other than a brush type slip ring as a connection terminal. .
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6915789A JP2729501B2 (en) | 1989-03-23 | 1989-03-23 | Method of applying high voltage to rotating metal roller |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6915789A JP2729501B2 (en) | 1989-03-23 | 1989-03-23 | Method of applying high voltage to rotating metal roller |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH02251266A JPH02251266A (en) | 1990-10-09 |
| JP2729501B2 true JP2729501B2 (en) | 1998-03-18 |
Family
ID=13394570
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP6915789A Expired - Fee Related JP2729501B2 (en) | 1989-03-23 | 1989-03-23 | Method of applying high voltage to rotating metal roller |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2729501B2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112547442B (en) * | 2020-12-01 | 2022-03-15 | 陕西航天时代导航设备有限公司 | Conducting ring glue filling tool |
-
1989
- 1989-03-23 JP JP6915789A patent/JP2729501B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH02251266A (en) | 1990-10-09 |
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