JPH0321372A - Coating apparatus - Google Patents
Coating apparatusInfo
- Publication number
- JPH0321372A JPH0321372A JP15719889A JP15719889A JPH0321372A JP H0321372 A JPH0321372 A JP H0321372A JP 15719889 A JP15719889 A JP 15719889A JP 15719889 A JP15719889 A JP 15719889A JP H0321372 A JPH0321372 A JP H0321372A
- Authority
- JP
- Japan
- Prior art keywords
- coating
- cylindrical body
- hollow drum
- coating head
- hands
- 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.)
- Granted
Links
- 238000000576 coating method Methods 0.000 title claims abstract description 90
- 239000011248 coating agent Substances 0.000 title claims abstract description 84
- 238000001514 detection method Methods 0.000 claims abstract description 11
- 239000007788 liquid Substances 0.000 claims description 28
- 238000004364 calculation method Methods 0.000 claims description 6
- 238000000034 method Methods 0.000 abstract description 4
- 230000000630 rising effect Effects 0.000 abstract 1
- 230000001360 synchronised effect Effects 0.000 abstract 1
- 108091008695 photoreceptors Proteins 0.000 description 8
- 239000000049 pigment Substances 0.000 description 5
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- AZQWKYJCGOJGHM-UHFFFAOYSA-N 1,4-benzoquinone Chemical compound O=C1C=CC(=O)C=C1 AZQWKYJCGOJGHM-UHFFFAOYSA-N 0.000 description 2
- XLOMVQKBTHCTTD-UHFFFAOYSA-N Zinc monoxide Chemical compound [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 description 2
- 239000011230 binding agent Substances 0.000 description 2
- 238000003618 dip coating Methods 0.000 description 2
- 238000006073 displacement reaction Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- -1 polycyclic aromatic compound Chemical class 0.000 description 2
- 230000001105 regulatory effect Effects 0.000 description 2
- 230000035945 sensitivity Effects 0.000 description 2
- 238000005507 spraying Methods 0.000 description 2
- 239000000758 substrate Substances 0.000 description 2
- QGKMIGUHVLGJBR-UHFFFAOYSA-M (4z)-1-(3-methylbutyl)-4-[[1-(3-methylbutyl)quinolin-1-ium-4-yl]methylidene]quinoline;iodide Chemical compound [I-].C12=CC=CC=C2N(CCC(C)C)C=CC1=CC1=CC=[N+](CCC(C)C)C2=CC=CC=C12 QGKMIGUHVLGJBR-UHFFFAOYSA-M 0.000 description 1
- QSNAVZQFIDCTQI-UHFFFAOYSA-N 1,2,3-trinitro-9h-fluorene Chemical compound C1=CC=C2C(C=C(C(=C3[N+]([O-])=O)[N+]([O-])=O)[N+](=O)[O-])=C3CC2=C1 QSNAVZQFIDCTQI-UHFFFAOYSA-N 0.000 description 1
- WUPHOULIZUERAE-UHFFFAOYSA-N 3-(oxolan-2-yl)propanoic acid Chemical compound OC(=O)CCC1CCCO1 WUPHOULIZUERAE-UHFFFAOYSA-N 0.000 description 1
- 230000002411 adverse 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
- 229910052980 cadmium sulfide Inorganic materials 0.000 description 1
- 238000007598 dipping method Methods 0.000 description 1
- 230000003028 elevating effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 125000002080 perylenyl group Chemical group C1(=CC=C2C=CC=C3C4=CC=CC5=CC=CC(C1=C23)=C45)* 0.000 description 1
- CSHWQDPOILHKBI-UHFFFAOYSA-N peryrene Natural products C1=CC(C2=CC=CC=3C2=C2C=CC=3)=C3C2=CC=CC3=C1 CSHWQDPOILHKBI-UHFFFAOYSA-N 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 229920003227 poly(N-vinyl carbazole) Polymers 0.000 description 1
- 239000004417 polycarbonate Substances 0.000 description 1
- 229920000515 polycarbonate Polymers 0.000 description 1
- 229920005596 polymer binder Polymers 0.000 description 1
- 239000002491 polymer binding agent Substances 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 125000006850 spacer group Chemical group 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 239000011787 zinc oxide Substances 0.000 description 1
Landscapes
- Coating Apparatus (AREA)
- Photoreceptors In Electrophotography (AREA)
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明は、中空ドラムの外面上に感光液を連続的に塗布
し電子写真感光体を得る場合に好適に用いられる塗布装
置に関する。DETAILED DESCRIPTION OF THE INVENTION [Industrial Application Field] The present invention relates to a coating device that is suitably used to continuously coat a photosensitive liquid onto the outer surface of a hollow drum to obtain an electrophotographic photoreceptor.
円筒形状の外面上に感光液を塗布し電子写真感光体を製
造するための塗布方法としては、スプレー塗布法、浸漬
塗布法、ブレード塗布法、ロール塗布法、およびスライ
ドホッパー塗布法などが知られている。Known coating methods for manufacturing an electrophotographic photoreceptor by coating a photosensitive liquid onto a cylindrical outer surface include spray coating, dip coating, blade coating, roll coating, and slide hopper coating. ing.
しかし、スプレー塗布法では、スプレーガンより噴出さ
せた感光液が被塗布物の外面上に到達する前に溶剤が蒸
発するために、乾燥固化した粒子が表面に付着し、平滑
性の良い塗布表面が得られずかつ膜厚の制御も難しい。However, in the spray coating method, the solvent evaporates before the photosensitive liquid ejected from the spray gun reaches the outer surface of the object to be coated, so dry and solidified particles adhere to the surface, resulting in a smooth coating surface. cannot be obtained, and it is also difficult to control the film thickness.
また、ブレード塗布法およびロール塗布法は、塗布液の
粘性により均一な塗膜が得られない欠点がある。さらに
、浸漬塗布法は、上記の塗布表面の平滑性、塗布膜の均
一性の難点については改良されるが、膜厚の制御が塗布
液の物性と塗布速度とに支配される。したがって、塗布
液の調整が非常に重要になるが、この調整は実際的に著
しく困難であり、また塗布速度も遅く生産性が悪い欠点
がある。Further, the blade coating method and the roll coating method have the disadvantage that a uniform coating film cannot be obtained due to the viscosity of the coating liquid. Furthermore, although the dip coating method improves the above-mentioned difficulties in the smoothness of the coating surface and the uniformity of the coating film, control of the film thickness is governed by the physical properties of the coating liquid and the coating speed. Therefore, it is very important to adjust the coating liquid, but this adjustment is extremely difficult in practice, and the coating speed is also slow, resulting in poor productivity.
このような塗布法に対して、特開昭５８−１８９０６１
号に代表されるいわゆるスライドホッパ一方式の塗布法
は、上記の欠点がなく好適である。また、特開昭６０
− ５０５３７号には、浸漬法を改良して、環状の塗布
ヘッドから塗布する装置も提案されている。Regarding such a coating method, Japanese Patent Application Laid-Open No. 58-189061
The so-called slide hopper one-type coating method typified by No. 1 is suitable because it does not have the above-mentioned drawbacks. Also, JP-A-60
- No. 50537 also proposes a device that improves the dipping method and coats from an annular coating head.
上記各公報に示された環状の塗布ヘッドから、対象の円
筒体の外面に塗布する場合、いかに塗布ヘッドと円筒体
外面との間隙を周方向に関し均一に保つか、および円筒
体の姿勢を塗布ヘッドの軸心に対していかに一致させる
かがきわめて重要である。When coating the outer surface of a target cylindrical body from the annular coating head shown in each of the above publications, it is important to keep the gap between the coating head and the outer surface of the cylindrical body uniform in the circumferential direction and the posture of the cylindrical body. It is extremely important how to match the axis of the head.
すなわち、上記間隙が周方向に均一でないとすると、塗
布膜厚が周方向に不均一となり、電子写真特性のムラと
なって現れる。That is, if the gap is not uniform in the circumferential direction, the coating film thickness will be non-uniform in the circumferential direction, resulting in uneven electrophotographic characteristics.
前者の円筒体と塗布ヘッドとの間隙の均一性については
、特開昭６０ − ５０５３７号公報では、塗布ヘッド
に位置規制コロを設けて均一性を解決することが示され
ている。Regarding the former uniformity of the gap between the cylindrical body and the coating head, Japanese Patent Laid-Open No. 60-50537 discloses that the uniformity can be solved by providing a position regulating roller on the coating head.
しかし、かかる手段では、円筒体外面がコロに常に接触
しなければ、位置決めを行うことができず、疵付きを嫌
う感光ドラムには不適である。また、若干のクリアラン
スを保つとすれば、逆に位置決め精度が悪くなる。However, with this method, positioning cannot be performed unless the outer surface of the cylindrical body is constantly in contact with the rollers, and is therefore unsuitable for photosensitive drums that are sensitive to scratches. Furthermore, if a certain amount of clearance is maintained, the positioning accuracy will be adversely affected.
そこで、本発明の主たる目的は、円筒体と塗布ヘッドと
の離間距離を周方向に関して均一にできるばかりでなく
、円筒体外面の疵付きを全くさせないで、円筒体が電子
写真感光体である場合、その電子写真特性において優れ
たものを得ることができる塗布装置を提供することにあ
る。Therefore, the main object of the present invention is to not only make the distance between the cylindrical body and the coating head uniform in the circumferential direction, but also to prevent the outer surface of the cylindrical body from being scratched at all, so that the cylindrical body can be used as an electrophotographic photoreceptor. The object of the present invention is to provide a coating device that can obtain excellent electrophotographic properties.
上記課題は、円筒体の外面にこれを取り囲んで配置され
前記円筒体の外面に塗布液を塗布する塗布ヘッドと、前
記円筒体の外面または中心軸位置を検出する位置検出手
段と、円筒体の横断面上における塗布ヘッドの位置を調
整する位置調整手段と、前記位置検出手段からの位置検
出信号に基づいて前記位置調整手段に円筒体の位置修正
信号を与える位置演算制御手段とを備えたことで解決で
きる。The above-mentioned problems include: a coating head disposed surrounding the outer surface of a cylindrical body for applying a coating liquid to the outer surface of the cylindrical body; a position detection means for detecting the outer surface or center axis position of the cylindrical body; A position adjustment means for adjusting the position of the application head on the cross section, and a position calculation control means for giving a position correction signal of the cylindrical body to the position adjustment means based on a position detection signal from the position detection means. It can be solved by
他方、本発明が対象にする塗布法においては、基本的に
円筒体と塗布ヘッドとの相対位置のみが重要であるから
、塗布ヘッドの位置を固定し、円筒体の位置を調整する
ようにしてもよい。On the other hand, in the coating method targeted by the present invention, basically only the relative position between the cylindrical body and the coating head is important, so the position of the coating head is fixed and the position of the cylindrical body is adjusted. Good too.
本発明では、円筒体の位置、たとえばその外面または中
心軸位置を検出するとともに、この検出信号に基づいて
塗布ヘッドまたは円筒体の位置を修正制御するので、円
筒体の外面と塗布ヘッドの内面との離間距離を周方向に
関し均一に調節でき、もって周方向の塗布膜厚を均一に
できる。さらに、前述のような位置規制コロを用いない
でも、位置決めを高精度で行うことができるから、感光
ドラムの疵付きもない。In the present invention, the position of the cylindrical body, for example, its outer surface or center axis position, is detected, and the position of the coating head or the cylindrical body is corrected and controlled based on this detection signal, so that the outer surface of the cylindrical body and the inner surface of the coating head are The distance between them can be adjusted uniformly in the circumferential direction, thereby making the thickness of the coating film uniform in the circumferential direction. Furthermore, since positioning can be performed with high precision without using the position regulating rollers as described above, the photosensitive drum will not be damaged.
なお，本発明の塗布装置は電子写真感光体を得る場合に
おいて特に有効である。かかる電子写真感光体における
塗布膜厚は、帯電量、感度および残留電位などの電子写
真特性に大きな影響を与える。したがって、感光ドラム
の周方向に塗布膜厚が不均一であると、同一複写物中の
画像濃度が不均一となったり、カブリを生ずる。本発明
によれば、塗布膜厚が周方向で均一となるので、かかる
問題が一切生じない。Incidentally, the coating apparatus of the present invention is particularly effective in obtaining an electrophotographic photoreceptor. The coating thickness of such an electrophotographic photoreceptor has a large effect on electrophotographic properties such as charge amount, sensitivity, and residual potential. Therefore, if the thickness of the coating film is non-uniform in the circumferential direction of the photosensitive drum, the image density within the same copy may become non-uniform or fog may occur. According to the present invention, the coating film thickness is uniform in the circumferential direction, so such problems do not occur at all.
また、円筒体の位置ずれやその傾斜が万一発生した場合
において、塗布ヘッドと円筒体との相対位置の修正を行
うので、傷つきを激しく嫌う感光ドラム表面の損傷が防
止される。Further, in the event that the cylindrical body is misaligned or tilted, the relative position between the application head and the cylindrical body is corrected, thereby preventing damage to the surface of the photosensitive drum, which is extremely sensitive to scratches.
以下、本発明をさらに詳説する。なお、以下本発明にい
う円筒体として、電子写真感光体用の円筒体、すなわち
中空ドラムを例に採るが、中空か中実であるかを問われ
ない。また、本発明にいう塗布ヘッドとしては、円筒体
の外面にこれを取り囲んで配置され前記円筒体の外面に
塗布液を塗布する基本的構成を有していれば、特開昭５
８−１８９０６１号、特開昭６０ − ５０５３７号な
どに開示されたもの、あるいは以下に図示するものなど
適宜採用できる。The present invention will be explained in further detail below. Hereinafter, the cylindrical body referred to in the present invention will be taken as an example of a cylindrical body for an electrophotographic photoreceptor, that is, a hollow drum, but it does not matter whether it is hollow or solid. Further, the coating head referred to in the present invention may have a basic structure that is arranged around the outer surface of a cylindrical body and applies a coating liquid to the outer surface of the cylindrical body.
8-189061, Japanese Patent Application Laid-Open No. 60-50537, etc., or those illustrated below can be adopted as appropriate.
第３図に本発明の塗布ヘッドＩＯの例として、スライド
ホッパー型塗布ヘッドが示されている。FIG. 3 shows a slide hopper type coating head as an example of the coating head IO of the present invention.
■は中空ドラムで、これを取り囲んで塗布ヘッド１０が
配置され、中空ドラム１の外面に塗布液すなわち感光液
Ｌを塗布するようになっている。2 is a hollow drum, around which a coating head 10 is arranged to apply a coating liquid, that is, a photosensitive liquid L, to the outer surface of the hollow drum 1.
塗布ヘッド１０には、中空ドラム１側に開口する塗布液
流出口１１を有する幅狭の塗布液分配スリットｌ２が水
平方向に形成されている。このスリット１２は液溜ヘッ
ダｌ３に連通し、この液溜ヘッダｌ３には感光液Ｌを圧
送ボンプ（図示せず）により供給するようになっている
。A narrow coating liquid distribution slit 12 having a coating liquid outlet 11 opening toward the hollow drum 1 is formed in the coating head 10 in the horizontal direction. This slit 12 communicates with a liquid reservoir header l3, and the photosensitive liquid L is supplied to this liquid reservoir header l3 by a pressure pump (not shown).
他方、スリットｌ２の塗布液流出口１ｌの下側には、連
続して下窄まりに傾斜し中空ドラムｌの外寸よりやや大
なる寸法で終端をなすように液スライド面１５が形成さ
れ、さらに、この液スライド面１５の終端より下方に延
びて唇状部ｌ６が形成されている。On the other hand, below the coating liquid outlet 1l of the slit l2, a liquid sliding surface 15 is formed so as to continuously slope downward and terminate at a dimension slightly larger than the outer dimension of the hollow drum l. Furthermore, a lip-shaped portion l6 is formed extending downward from the terminal end of this liquid sliding surface 15.
かかる塗布装置では、中空ドラムｌを引き上げる過程で
、感光液Ｌをスリットｌ２および塗布液流出口１１から
押出し、液スライド面１５に沿って流下させる。唇状部
１６に到った感光液Ｌは、ほぼ唇状部ｌ６と中空ドラム
１とのクリアランスに相当する厚みをもって中空ドラム
１の外面に塗布される。In such a coating device, in the process of pulling up the hollow drum 1, the photosensitive liquid L is pushed out from the slit 12 and the coating liquid outlet 11, and is caused to flow down along the liquid sliding surface 15. The photosensitive liquid L that has reached the lip portion 16 is applied to the outer surface of the hollow drum 1 with a thickness approximately corresponding to the clearance between the lip portion l6 and the hollow drum 1.
上記の塗布ヘッド１０自体は基本的に公知のものである
が、本発明では、中空ドラムｌと塗布ヘッド１０の内面
との距離を周方向に関し均一にするために、第１図の装
置構成例が採られる。The coating head 10 itself is basically known, but in the present invention, in order to make the distance between the hollow drum l and the inner surface of the coating head 10 uniform in the circumferential direction, the apparatus configuration example shown in FIG. is taken.
すなわち、塗布ヘッドＩＯを支承する架台２０に塗布ヘ
ッド１０の位置調整手段３０が設けられる。この位置調
整手段３０としては、公知のＸ−Ｙ軸制御テーブルをそ
のまま採用できる。位置調整手段３０は、塗布ヘッドＩ
Ｏと連結部材３１により連結されており、位置調整手段
３０のＸ軸またはＹ軸の移動が直接塗布ヘッドＩＯのＸ
軸またはＹ軸の移動として現れるようになっている。That is, the position adjustment means 30 for the coating head 10 is provided on the pedestal 20 that supports the coating head IO. As this position adjustment means 30, a known X-Y axis control table can be used as is. The position adjustment means 30 is a coating head I.
O is connected to the coating head IO by a connecting member 31, and movement of the position adjustment means 30 in the X axis or Y axis directly affects the
It appears as an axis or Y-axis movement.
他方、中空ドラム１の未塗布位置、この例では塗布ヘッ
ドＩＯの下方位置に、中空ドラム１の外面位置を検出す
るための位置検出器４０Ａ〜４０Ｄが、中空ドラムｌの
外面に対して離間し、かつ第２図に明示されているよう
に、周方向に９０度の間隔をもって配設されている。位
置検出器４０Ａ〜４０Ｄとしては、たとえばレーザ変位
計または渦電流式変位計が用いられる。かかる各位置検
出器４０Ａ〜４０Ｄからの中空ドラムｌ外面との離間距
離信号は、演算器４１に与えられ、中空ドラムｌの中心
軸が塗布ヘッド１０の中心軸に対してどのように偏位し
ているかが演算され、この演算結果に基づいて前記両中
心軸が一致するように、コントローラー４２を介して位
置調整手段３０に位置修正信号が与えられるよう構成さ
れている。On the other hand, position detectors 40A to 40D for detecting the outer surface position of the hollow drum 1 are located at an uncoated position of the hollow drum 1, in this example below the coating head IO, and are spaced apart from the outer surface of the hollow drum 1. , and are arranged at intervals of 90 degrees in the circumferential direction, as clearly shown in FIG. For example, a laser displacement meter or an eddy current displacement meter is used as the position detectors 40A to 40D. The distance signals from each of the position detectors 40A to 40D between the outer surface of the hollow drum l and the outer surface of the hollow drum l are given to a computing unit 41, which calculates how the central axis of the hollow drum l deviates from the central axis of the coating head 10. Based on the result of this calculation, a position correction signal is given to the position adjustment means 30 via the controller 42 so that the two central axes coincide.
本発明にいう位置演算制御手段とは、この例では、演算
器４ｌとコントローラー４２とで構成される。In this example, the position calculation control means referred to in the present invention is composed of a calculation unit 4l and a controller 42.
また、上記のＸ輪＝Ｙ軸制御テーブル３０を駆動する各
サーボモータの出力信号は演算器４１に入力され、塗布
ヘッド１０の現位置信号として与えられる。Furthermore, the output signals of the respective servo motors that drive the above-mentioned X-wheel=Y-axis control table 30 are input to the arithmetic unit 41 and given as the current position signal of the coating head 10.
このように構或された塗布装置においては、第２図のよ
うに、位置検出器４０Ａおよび４０Ｃにより与えられる
中空ドラム１外面に対する離間信号差からＸ軸方向の、
位置検出器４０Ｂおよび４０Ｄにより与えられる中空ド
ラム１外面に対する離間信号差からＸ軸方向の偏位がそ
れぞれ検出され、もって、Ｘ軸一Ｙ軸制御テーブル３０
を駆動する各サーボモー夕の出力信号による塗布ヘッド
ｌＯの現位置とを比較して、塗布ヘッドＩＯの位置を修
正する。In the coating device constructed in this manner, as shown in FIG.
The deviation in the X-axis direction is detected from the separation signal difference with respect to the outer surface of the hollow drum 1 given by the position detectors 40B and 40D, and thus the X-axis and Y-axis control table 30
The position of the coating head IO is corrected by comparing the current position of the coating head IO based on the output signal of each servo motor driving the servo motor.
この場合、中空ドラム１の中心軸と塗布ヘッド１０の中
心軸とが一致するよう塗布ヘッド１０の位置を調整する
と、周方向に関し、中空ドラム１と塗布ヘッドＩＯ内面
との離間距離が均一化され、塗布膜厚が均一となる。In this case, if the position of the coating head 10 is adjusted so that the central axis of the hollow drum 1 and the central axis of the coating head 10 match, the distance between the hollow drum 1 and the inner surface of the coating head IO will be made uniform in the circumferential direction. , the coating film thickness becomes uniform.
塗布ヘッド１０の位置調整手段としては、種々のものを
適宜採用できる。たとえば、第４図および第５図のよう
に、架台２０に支点枢軸５０を設け、この枢軸５０に第
１アーム５ｌを連結し、その一端を塗布ヘッド１０の鍔
部１０ａに枢着し、他方、架台２０にＸ軸−Ｙｆｄｌ制
御テーブル５２をＸ軸およびＹ軸方向に移動自在に配設
し、このテーブル５２に第２アーム５３および第３アー
ム５４を枢着し、かつ第３アーム５４は第１アーム５１
と枢着しておく。Various types of means for adjusting the position of the coating head 10 can be employed as appropriate. For example, as shown in FIGS. 4 and 5, a fulcrum pivot 50 is provided on the pedestal 20, a first arm 5l is connected to this pivot 50, one end of which is pivoted to the flange 10a of the coating head 10, and the other , an X-axis-Yfdl control table 52 is disposed on the pedestal 20 so as to be movable in the X-axis and Y-axis directions, a second arm 53 and a third arm 54 are pivotally connected to the table 52, and the third arm 54 is First arm 51
I'll keep that in mind.
この例による位置調整手段によれば、Ｘ軸一Ｙ軸制御テ
ーブル５２のＸ軸またはＹ軸の移動に伴って、塗布ヘッ
ド１０が第４図の矢印方向に移動させることが可能とな
る。According to the position adjusting means according to this example, the coating head 10 can be moved in the direction of the arrow in FIG. 4 as the X-axis-Y-axis control table 52 moves in the X-axis or Y-axis.
一方、本発明において、塗布ヘッド１０の位置を固定し
て、必要時のみ、中空ドラム１のその横断面上の位置を
修正するようにしてもよい。このために、たとえば第６
図および第７図のように、中空ドラム１をその両側から
把持する一対のハンド６０Ａ，ＢＯＢと、これを揺動自
在に支持軸６１、６ｌを介して保持する基板６２と、ハ
ンド６０Ａ１ＢＯＢの基部を連結するシリンダ６３と、
前記基板６２を保持しこれをＸ軸およびＹ軸に移動させ
るＸ軸一Ｙ軸制御テーブル６４と、このＸ軸一Ｙ軸制御
テーブル６４を保持するホルダー６５と、このホルダー
６５に螺合するスクリューネジ軸６６と、これを回転駆
動する駆動手段（図示せず）と、スクリューネジ軸６６
を保持する昇降架台６７とが設けられる。６８は中空ド
ラムｌの外面に当接するゴムなどからなるタッチローラ
である。On the other hand, in the present invention, the position of the coating head 10 may be fixed, and the position of the hollow drum 1 on its cross section may be corrected only when necessary. For this purpose, for example, the sixth
As shown in FIG. 7 and FIG. 7, a pair of hands 60A and BOB grip the hollow drum 1 from both sides, a substrate 62 that swingably holds the hollow drum 1 via support shafts 61 and 6l, and a base of the hand 60A1BOB. a cylinder 63 that connects the
An X-axis/Y-axis control table 64 that holds the substrate 62 and moves it along the X-axis and Y-axis, a holder 65 that holds the X-axis/Y-axis control table 64, and a screw that is screwed into the holder 65. A screw shaft 66, a driving means (not shown) for rotationally driving the screw shaft 66, and a screw shaft 66.
An elevating pedestal 67 for holding the is provided. 68 is a touch roller made of rubber or the like that comes into contact with the outer surface of the hollow drum l.
かかる装置において、シリンダ６３のロツドを伸縮する
と、それぞれハンドＢＯＡ、６０Ｂは、支持軸６ｌ、６
ｌを中心にして閉および開方向に揺動する。したがって
、位置修正必要時には、閉方向にシリンダ６３を動作さ
せ、ハンド６０Ａ，６０Ｂにより中空ドラムｌを把持し
た状態で、Ｘ輪−Ｙ軸制御テーブル６４により中空ドラ
ム１の位置を修正する。また、スクリューネジ軸６６は
中空ドラム１の引き上げ速度に同期させてハンドＢＯＡ
，６０Ｂを上昇させるのに用いる。この上昇がある限度
に達したならば、ハンド６０Ａ１ＢＯＢによる中空ドラ
ムｌの把持を解放して、再び当初の位置に復帰させるこ
とができる。In such a device, when the rod of the cylinder 63 is expanded or contracted, the hands BOA and 60B are moved to support shafts 6l and 6, respectively.
It swings around l in the closing and opening directions. Therefore, when the position needs to be corrected, the cylinder 63 is operated in the closing direction, and the position of the hollow drum 1 is corrected by the X-wheel-Y-axis control table 64 while the hollow drum 1 is gripped by the hands 60A and 60B. Further, the screw shaft 66 is connected to the hand BOA in synchronization with the lifting speed of the hollow drum 1.
, 60B. When this rise reaches a certain limit, the grip of the hollow drum 1 by the hand 60A1BOB can be released and the hollow drum 1 can be returned to its original position.
かかるハンド６０Ａ，６０Ｂによる把持および解放は、
連続塗布のための中空ドラムの引き上げ手段として用い
ることができる。The gripping and releasing by such hands 60A and 60B are
It can be used as a lifting means for hollow drums for continuous coating.
本発明において、塗布ヘッドＩＯの位置修正と中空ドラ
ム１の位置修正を同時に行うことをも含む。The present invention also includes simultaneously correcting the position of the coating head IO and the position of the hollow drum 1.
他方、位置検出器４０Ａ〜４０Ｄ群を、もう一群高さ方
向に異ならせて中空ドラム１に対して配設すれば、中空
ドラム１の傾斜も検出できる。そして、この傾斜を修正
すべく、第６図および第７図に示したハンド６０Ａ．６
０Ｂを、もう一対高さ方向に異ならせて配設するととも
に、これらをＸ軸およびＹ軸に移動させる前記の機構を
設けて傾斜修正を行うことができる。On the other hand, if another group of position detectors 40A to 40D is arranged at different heights relative to the hollow drum 1, the inclination of the hollow drum 1 can also be detected. In order to correct this inclination, the hand 60A. shown in FIGS. 6 and 7. 6
The inclination can be corrected by arranging another pair of 0Bs at different heights and by providing the above-mentioned mechanism for moving these in the X-axis and Y-axis.
ところで、感光液の塗布に際して、通常、塗布ヘッドＩ
Ｏの位置を固定し、中空ドラム１を引き上げるようにす
る。この場合の中空ドラム１の引き上げには、前記のロ
ボットハンド方式に代えて、特開昭６１−２５１４９号
公報に記載のように、中空ドラムＩの下端をまたはスペ
ーサードラムを介してシリンダーなどの手段により行う
ことができる。By the way, when applying a photosensitive liquid, usually the application head I
The position of O is fixed and the hollow drum 1 is pulled up. In this case, instead of using the above-mentioned robot hand method, the hollow drum 1 can be pulled up by a means such as a cylinder by lifting the lower end of the hollow drum I or through a spacer drum, as described in Japanese Patent Application Laid-Open No. 61-25149. This can be done by
また、必要ならば、第３図の位置関係を上下逆転させて
、中空ドラム１を引下げながら塗布することも可能であ
る。さらに、前述のように、本発明における塗布ヘッド
の構造に関し、環状構造である限り限定されるものでは
ない。Furthermore, if necessary, it is also possible to reverse the positional relationship shown in FIG. 3 and apply the coating while lowering the hollow drum 1. Further, as described above, the structure of the coating head in the present invention is not limited as long as it has an annular structure.
本発明は、前述のように、電子写真感光体を製造する際
の塗布装置としてきわめて有効である。As described above, the present invention is extremely effective as a coating device for manufacturing electrophotographic photoreceptors.
この場合の感光液としては、酸化亜鉛や硫化カドミウム
等の無機感光材料、ポリビニルカルバゾールとトリニト
ロフルオレン等の有機感光材料を高分子バインダーに分
散させたものなどを用いることができる。また近年、高
感度化、耐久性向上のために、電荷発生層と電荷輸送層
を積層した機能分離型感光層も用いることができる。In this case, the photosensitive liquid may be one in which an inorganic photosensitive material such as zinc oxide or cadmium sulfide or an organic photosensitive material such as polyvinylcarbazole or trinitrofluorene is dispersed in a polymer binder. Furthermore, in recent years, in order to increase sensitivity and improve durability, functionally separated photosensitive layers in which a charge generation layer and a charge transport layer are laminated can also be used.
たとえば電荷発生層はアゾ顔料、キノン顔料、ペリレン
顔料、フタ口シアニン顔料、アンスアンスロン顔料等を
ポリカーボネートなどの高分子バインダーに分散し、電
荷輸送層は多環芳香族化合物、含窒素環式化合物等を高
分子バインダーに分散して得ることができる。電荷発生
層の厚さは、０６０１〜１０μ好ましくは０．０５〜５
μであり、電荷輸送層の厚さは好ましくは５〜３０μで
ある。感光液の年度は０．５〜７００ｃｐの範囲で、好
ましくは１〜５００ｃｐの範囲である。For example, the charge generation layer is made by dispersing an azo pigment, a quinone pigment, a perylene pigment, a cyanine pigment, an anthurone pigment, etc. in a polymeric binder such as polycarbonate, and the charge transport layer is made by dispersing a polycyclic aromatic compound, a nitrogen-containing cyclic compound, etc. can be obtained by dispersing it in a polymeric binder. The thickness of the charge generation layer is 0.601 to 10μ, preferably 0.05 to 5μ.
μ, and the thickness of the charge transport layer is preferably 5 to 30 μ. The age of the photosensitive liquid is in the range of 0.5 to 700 cp, preferably in the range of 1 to 500 cp.
また、電子写真用の中空ドラムとしては、アルミニウム
、ステンレス、導電層が形成されたプラスチック等があ
る。また、先に下引き層や電荷発生層を形成しておいた
ものでもよい。Further, hollow drums for electrophotography include aluminum, stainless steel, plastic on which a conductive layer is formed, and the like. Alternatively, an undercoat layer and a charge generation layer may be formed in advance.
以上の通り、本発明によれば、円筒体と塗布ヘッドとの
離間距離を周方向に関して均一にできるので、円筒体が
電子写真感光体である場合、その電子写真特性において
優れたものを得ることができる。さらに、円筒体の外面
への疵付き防止も可能である。As described above, according to the present invention, since the distance between the cylindrical body and the coating head can be made uniform in the circumferential direction, when the cylindrical body is an electrophotographic photoreceptor, excellent electrophotographic properties can be obtained. I can do it. Furthermore, it is also possible to prevent scratches from forming on the outer surface of the cylindrical body.
第１図は本発明装置例の全体的概要斜視図、第２図はそ
の位置検出器と中空ドラムとの位置関係を示す横断面図
、第３図は塗布ヘッド例の縦断面図、第４図は塗布ヘッ
ドの位置調整手段例の平面図、第５図はその正面図、第
６図は中空ドラムの位置調整手段の平面図、第７図はそ
の正面図である。
ｌ・・・中空ドラム、１０・・・塗布ヘッド３０・・・
位置調整手段
４０Ａ〜４０Ｄ・・・位置検出器、４ｌ・・・演算器４
２・・・コントローラー
５２・・・Ｘ輪−Ｙ軸制御テーブル
６０Ａ，６０Ｂ・・・ハンド、６３・・・開閉シリンダ
６４・・・Ｘ軸一Ｙ軸制御テーブル、Ｌ・・・感光液。
第１図
第２図
４０Ｄ
壺
第３図
第
４
図
第
５
図
第
６
図
第
ア
図FIG. 1 is an overall schematic perspective view of an example of the apparatus of the present invention, FIG. 2 is a cross-sectional view showing the positional relationship between the position detector and the hollow drum, FIG. 3 is a longitudinal cross-sectional view of an example of the coating head, and FIG. 5 is a plan view of an example of a position adjusting means for a coating head, FIG. 5 is a front view thereof, FIG. 6 is a plan view of a position adjusting means for a hollow drum, and FIG. 7 is a front view thereof. l...Hollow drum, 10...Applying head 30...
Position adjustment means 40A to 40D...Position detector, 4l...Arithmetic unit 4
2... Controller 52... X-wheel-Y-axis control table 60A, 60B... Hand, 63... Opening/closing cylinder 64... X-axis-Y-axis control table, L... Photosensitive liquid. Figure 1 Figure 2 40D Jar Figure 3 Figure 4 Figure 5 Figure 6 Figure A
Claims (2)
筒体の外面に塗布液を塗布する塗布ヘッドと、前記円筒
体の外面または中心軸位置を検出する位置検出手段と、
円筒体の横断面上における塗布ヘッドの位置を調整する
位置調整手段と、前記位置検出手段からの位置検出信号
に基づいて前記位置調整手段に円筒体の位置修正信号を
与える位置演算制御手段とを備えたことを特徴とする塗
布装置。(1) a coating head disposed surrounding the outer surface of a cylindrical body for applying a coating liquid to the outer surface of the cylindrical body; and a position detection means for detecting the outer surface or central axis position of the cylindrical body;
a position adjustment means for adjusting the position of the coating head on the cross section of the cylindrical body; and a position calculation control means for supplying a position correction signal of the cylindrical body to the position adjustment means based on a position detection signal from the position detection means. A coating device characterized by comprising:
筒体の外面に塗布液を塗布する塗布ヘッドと、前記円筒
体の外面または中心軸位置を検出する位置検出手段と、
円筒体の横断面上における円筒体の位置を調整する位置
調整手段と、前記位置検出手段からの位置検出信号に基
づいて前記位置調整手段に円筒体の位置修正信号を与え
る位置演算制御手段とを備えたことを特徴とする塗布装
置。(2) a coating head disposed surrounding the outer surface of the cylindrical body and applying a coating liquid to the outer surface of the cylindrical body; and a position detection means for detecting the outer surface or central axis position of the cylindrical body;
a position adjustment means for adjusting the position of the cylindrical body on a cross section of the cylindrical body; and a position calculation control means for supplying a position correction signal of the cylindrical body to the position adjustment means based on a position detection signal from the position detection means. A coating device characterized by comprising:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15719889A JP2764435B2 (en) | 1989-06-20 | 1989-06-20 | Coating device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15719889A JP2764435B2 (en) | 1989-06-20 | 1989-06-20 | Coating device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0321372A true JPH0321372A (en) | 1991-01-30 |
| JP2764435B2 JP2764435B2 (en) | 1998-06-11 |
Family
ID=15644349
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP15719889A Expired - Lifetime JP2764435B2 (en) | 1989-06-20 | 1989-06-20 | Coating device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2764435B2 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7954860B2 (en) | 2006-03-31 | 2011-06-07 | Hideo Suzuki | Coupling mechanism |
| CN111408519A (en) * | 2019-08-30 | 2020-07-14 | 南京精微迅智能科技有限公司 | Spraying device is used in processing of unmanned aerial vehicle shell |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4044509B2 (en) * | 2003-10-24 | 2008-02-06 | シャープ株式会社 | Coating liquid coating apparatus and coating method for cylindrical substrate, electrophotographic photosensitive member produced by the method, and electrophotographic apparatus including the same |
-
1989
- 1989-06-20 JP JP15719889A patent/JP2764435B2/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7954860B2 (en) | 2006-03-31 | 2011-06-07 | Hideo Suzuki | Coupling mechanism |
| CN111408519A (en) * | 2019-08-30 | 2020-07-14 | 南京精微迅智能科技有限公司 | Spraying device is used in processing of unmanned aerial vehicle shell |
| CN111408519B (en) * | 2019-08-30 | 2021-05-14 | 南京精微迅智能科技有限公司 | Spraying device is used in processing of unmanned aerial vehicle shell |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2764435B2 (en) | 1998-06-11 |
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