JP2002273309A - Apparatus for detecting defect in coating liquid for curtain coater - Google Patents
Apparatus for detecting defect in coating liquid for curtain coaterInfo
- Publication number
- JP2002273309A JP2002273309A JP2001074828A JP2001074828A JP2002273309A JP 2002273309 A JP2002273309 A JP 2002273309A JP 2001074828 A JP2001074828 A JP 2001074828A JP 2001074828 A JP2001074828 A JP 2001074828A JP 2002273309 A JP2002273309 A JP 2002273309A
- Authority
- JP
- Japan
- Prior art keywords
- coating liquid
- curtain
- base paper
- defect
- marking
- 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
Landscapes
- Coating Apparatus (AREA)
- Investigating Materials By The Use Of Optical Means Adapted For Particular Applications (AREA)
- Application Of Or Painting With Fluid Materials (AREA)
- Paper (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は製紙工場で製造され
た原紙に塗工液をカーテン状に塗布するために用いるカ
ーテンコータにおいて塗工液中に含まれる気泡や異物等
の欠陥を検出するための欠陥検出装置に関するものであ
る。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a curtain coater used for applying a coating solution to a base paper manufactured in a paper mill in a curtain shape to detect defects such as air bubbles and foreign matter contained in the coating solution. And a defect detection device.
【０００２】[0002]
【従来の技術】製紙工場で製造された紙はそのままの形
で使用されることはなく、それを原紙として更に加工を
施すことにより所要の目的に適合する製品としての加工
紙とする場合が多い。加工紙には種々のものがあるが、
その一つに、塗被加工紙がある。塗被加工紙は、原紙の
表面に塗工液を塗布させて製造するもので、その装置と
してカーテンコータがある。2. Description of the Related Art Paper produced in a paper mill is not used as it is, but is often used as a base paper for further processing into a processed paper as a product meeting a required purpose. . There are various types of processed paper,
One of them is coated paper. Coated paper is manufactured by applying a coating liquid to the surface of base paper, and there is a curtain coater as an apparatus therefor.
【０００３】カーテンコータは、図２にその一例の概略
を示す如く、コータロール１に巻回されて、該コータロ
ール１から下流に向けてやや上向きに走行する原紙２の
表面に、カーテンコータヘッド（給液ヘッド）３から塗
工液（塗工用カラー）４を一様なカーテン４ａ状に流下
させることにより、塗工液４を原紙２の表面に直接塗布
させるようにしてある。５はガイドロールを示す。As schematically shown in FIG. 2, a curtain coater is wound around a coater roll 1 and is provided on a surface of a base paper 2 which travels slightly upward from the coater roll 1 to a downstream side. The coating liquid (coating color) 4 is caused to flow down from the (liquid supply head) 3 into a uniform curtain 4 a so that the coating liquid 4 is directly applied to the surface of the base paper 2. Reference numeral 5 denotes a guide roll.
【０００４】[0004]
【発明が解決しようとする課題】ところが、上記カーテ
ンコータでは、塗工液４のカーテン４ａの状態が直接塗
工面に現われるので、塗工液４中に気泡や異物が混入し
ていると、該塗工液４中に含まれている気泡や異物が欠
陥として現われて来て、そのままにしておくと、欠陥製
品となって市場に流出してしまうおそれがあるという問
題がある。However, in the above-described curtain coater, the state of the curtain 4a of the coating liquid 4 appears directly on the coating surface. There is a problem that air bubbles and foreign matter contained in the coating liquid 4 appear as defects and if left as they are, they may become defective products and flow out to the market.
【０００５】そこで、本発明は、塗工液中に含まれる気
泡や異物等の欠陥を事前に検出して、欠陥製品となって
市場に流出することがないようにしようとするものであ
る。Therefore, the present invention is to detect defects such as air bubbles and foreign substances contained in a coating liquid in advance, so as to prevent a defective product from flowing to the market.
【０００６】[0006]
【課題を解決するための手段】本発明は、上記課題を解
決するために、コータロールに巻回されて走行する原紙
の表面にカーテンコータヘッドから塗工液をカーテン状
に流下させて塗布させるようにしてあるカーテンコータ
における上記塗工液カーテンの片面側に監視カメラを配
置し、且つ該監視カメラで撮影した画像を処理して欠陥
検出信号を出力するようにした画像処理装置を備えた構
成とする。According to the present invention, in order to solve the above-mentioned problems, a coating liquid is caused to flow down in a curtain form from a curtain coater head onto a surface of a base paper which is wound around a coater roll and travels. A configuration provided with an image processing device in which a monitoring camera is arranged on one side of the coating liquid curtain in a curtain coater as described above, and an image captured by the monitoring camera is processed to output a defect detection signal. And
【０００７】カーテンコータの運転時に、監視カメラで
撮影された塗工液カーテンの画像が画像処理装置に送ら
れて画像処理され、気泡や異物があれば、欠陥として検
出することができる。[0007] During operation of the curtain coater, an image of the coating liquid curtain taken by the monitoring camera is sent to an image processing device and subjected to image processing, and any bubbles or foreign matter can be detected as a defect.
【０００８】又、塗工液が塗布された後の原紙の幅端部
にマーキングを行うためのマーキング装置と、画像処理
装置からの欠陥検出信号を基に該マーキング装置にマー
キング指令信号を送る制御器を備えた構成とすることに
より、画像処理装置から出力された欠陥検出信号を基
に、制御器から所要のタイミングでマーキング装置にマ
ーキング指令信号が出され、原紙の幅端部に欠陥部分を
知らせるためのマーキングが施される。Also, a marking device for marking the width end of the base paper after the coating liquid is applied, and a control for sending a marking command signal to the marking device based on a defect detection signal from the image processing device. With the configuration including the device, a marking command signal is issued from the controller to the marking device at a required timing based on the defect detection signal output from the image processing device, and a defective portion is formed at the width end of the base paper. A marking is provided for notification.
【０００９】更に、監視カメラと対向するように、塗工
液カーテンを挟んで照明装置を設置した構成とした場合
は、塗工液は透明ではないが、光の照射により、泡は光
を通し、異物は黒く写るので、欠陥の検出をより精度よ
く行うことができるようになる。Further, in the case where the lighting device is provided so as to sandwich the coating liquid curtain so as to face the surveillance camera, the coating liquid is not transparent, but the bubbles are transmitted through the light by irradiation of light. In addition, since the foreign matter appears black, the defect can be detected with higher accuracy.
【００１０】[0010]
【発明の実施の形態】以下、本発明の実施の形態を図面
を参照して説明する。Embodiments of the present invention will be described below with reference to the drawings.
【００１１】図１（イ）（ロ）は本発明の実施の一形態
を示すもので、カーテンコータは塗工液のカーテンの状
態が直接製品（塗工紙）に現われることと、塗工液が原
紙上に塗布されて走行する速度に比して塗工液がカーテ
ン状に流下する速度がはるかに遅いことに着目して、直
接カーテンを監視するため、図２に示したと同様に、コ
ータロール１に巻回されて走行する原紙２の表面に、カ
ーテンコータヘッド３から塗工液４をカーテン４ａ状に
流下させて塗布させるようにしてあるカーテンコータに
おいて、上記カーテンコータヘッド３から原紙２上に流
下する塗工液４のカーテン４ａの片面側（図では塗布時
の表面となる面側）に、カーテン４ａの全幅に光を当て
ることができるように照明装置６を配置すると共に、上
記カーテン４ａの反対面側に、カーテン４ａの全幅を片
面より撮影して光がカーテン４ａを透過する具合を検出
する監視カメラ７を設置し、且つ該監視カメラ７で撮影
した画像を処理してカーテン４ａに混入する気泡１２や
異物１３等の欠陥を検出して欠陥検出信号Ｓ１を出力す
るようにした画像処理装置８と、その処理画像を表示す
るモニター９を設ける。更に、原紙２の表面に塗工液４
のカーテン４ａが塗布される位置の下流側所要位置に、
原紙２の幅端部にマーキングを行うためのマーキング装
置（ポインター）１０を設置し、上記画像処理装置８か
らの欠陥検出信号Ｓ１を基に該マーキング装置１０にマ
ーキング指令信号Ｓ２を送るようにした制御器１１を備
えた構成とする。FIGS. 1 (a) and 1 (b) show an embodiment of the present invention. A curtain coater is used to show that the state of a curtain of a coating liquid directly appears on a product (coated paper) and that the coating liquid Focusing on the fact that the speed at which the coating liquid flows down in the form of a curtain is much slower than the speed at which the coating liquid is applied on the base paper and travels, the direct monitoring of the curtain is performed. In a curtain coater in which a coating liquid 4 flows down from a curtain coater head 3 in the form of a curtain 4a and is applied to a surface of a base paper 2 wound and run around the curtain 1, A lighting device 6 is arranged on one side of the curtain 4a of the coating liquid 4 flowing down (the surface side which is the surface at the time of application in the figure) so that light can be applied to the entire width of the curtain 4a. Curtain 4a On the opposite side, a surveillance camera 7 for photographing the entire width of the curtain 4a from one side and detecting the degree of light passing through the curtain 4a is installed, and processing the image photographed by the surveillance camera 7 to mix it into the curtain 4a. an image processing device 8 to output a defect detection signals S 1 and detects defects such as bubbles 12 or foreign matter 13 is provided with a monitor 9 for displaying the processed image. Further, a coating liquid 4 is applied to the surface of the base paper 2.
At a required position downstream of the position where the curtain 4a is applied,
The marking device (pointer) 10 for performing marking width end portion of the stencil sheet 2 is placed, to send a marking command signal S 2 to the marking device 10 on the basis of the defect detection signals S 1 from the image processing apparatus 8 It is configured to include the controller 11 described above.
【００１２】上記制御器１１には、監視カメラ７の設置
位置、カーテン４ａの流下速度、原紙２の走行速度、マ
ーキング装置１０の設置位置等の情報が入力されてい
て、欠陥がマーキング装置１０の位置に達するときに、
所要のタイミングでマーキング指令信号Ｓ２が出される
ようにしてある。Information such as the installation position of the surveillance camera 7, the falling speed of the curtain 4 a, the traveling speed of the base paper 2, and the installation position of the marking device 10 is input to the controller 11. When you reach the position,
It is as marking command signal S 2 is issued at a desired timing.
【００１３】カーテンコータの運転時、カーテンコータ
ヘッド３から流下させられる塗工液４のカーテン４ａの
片面より照明装置６にて光を当て、その光がカーテン４
ａを透過する具合をカーテン４ａの反対側から監視カメ
ラ７で検出する。監視カメラ７で撮影された画像は常時
画像処理装置８に送られ、ここで、画像の局所的なコン
トラストが強められるように、たとえば、コントラスト
シャープニングなどの画像処理が施されることで欠陥の
有無が目視によらず検出される。この場合、塗工液４は
透明ではないので、欠陥が気泡１２であるときには、光
が透過し周囲より明るい筋又は点となり、一方、異物１
３であるときには、周囲より暗い点となることを利用し
て画像処理されるので、欠陥の検出が正確に行われる。During operation of the curtain coater, light is applied from one side of the curtain 4a of the coating liquid 4 flowing down from the curtain coater head 3 by the illumination device 6, and the light is applied to the curtain 4a.
The surveillance camera 7 detects the degree of transmission through the a from the opposite side of the curtain 4a. The image captured by the surveillance camera 7 is always sent to the image processing device 8, where image processing such as contrast sharpening is performed to enhance the local contrast of the image. Presence or absence is detected without visual inspection. In this case, since the coating liquid 4 is not transparent, when the defect is the bubble 12, light is transmitted and becomes a streak or a point brighter than the surroundings.
When the number is 3, image processing is performed by utilizing a point that is darker than the surroundings, so that defect detection is performed accurately.
【００１４】上記において、カーテンコータヘッド３か
ら流下する塗工液４のカーテン４ａの流速は、約１ｍ／
ｓｅｃであるのに対し、原紙２の走行速度は２０ｍ／ｓ
ｅｃ程度で、約２０倍の速さであるが、本発明では、速
度の遅いカーテン４ａの部分で欠陥検出を行うようにし
ていることから、高速走行中の欠陥検出に比して検出精
度をより高めることが可能となる。In the above, the flow rate of the coating liquid 4 flowing down from the curtain coater head 3 through the curtain 4a is about 1 m /
sec, the running speed of the base paper 2 is 20 m / s
Although the speed is about 20 ec, which is about 20 times faster, in the present invention, since the defect is detected at the portion of the curtain 4a having a low speed, the detection accuracy is lower than that of the defect detection during high-speed running. It is possible to further increase.
【００１５】画像処理装置８での画像処理により欠陥が
検出されると、制御器１１に欠陥検出信号Ｓ１が送ら
れ、この欠陥検出信号Ｓ１に基づいて制御器１１から所
要のタイミングでマーキング装置１０にマーキング指令
信号Ｓ２が送られ、塗工液４中に欠陥が検出された個所
に相当する原紙２の幅端部にマーキング装置１０にてマ
ーキングが施されることで、欠陥の表示が行われる。[0015] defects by image processing in the image processing apparatus 8 is detected, the defect detection signal S 1 is sent to the controller 11, marked with required timing from the controller 11 on the basis of the defect detection signals S 1 marking command signal S 2 is transmitted to the device 10, that defects in the coating liquid 4 is marked at the width end portion marking apparatus 10 to the base paper 2 corresponding to positions detected subjected, display defects Is performed.
【００１６】上記原紙２にマーキングが施された位置の
幅方向領域内には欠陥が存在することになるので、下流
の工程で該欠陥部分をカットすることにより、欠陥製品
が市場に流出することを未然に防止することができる。Since a defect exists in the width direction region of the position where the marking is applied to the base paper 2, cutting the defective portion in a downstream process causes a defective product to flow to the market. Can be prevented beforehand.
【００１７】なお、上記実施の形態では監視カメラ７に
対向させて照明装置６を設置した場合を示したが、照明
装置６は周囲の環境によっては不要としてもよく、又、
監視カメラ７として赤外線監視カメラを用いた場合は照
明装置６は不要であり、更に、これら監視カメラとして
放射線透過装置を用いるようにしてもよいこと、その他
本発明の要旨を逸脱しない範囲内において種々変更を加
え得ることは勿論である。In the above embodiment, the case where the lighting device 6 is installed so as to face the monitoring camera 7 has been described. However, the lighting device 6 may be unnecessary depending on the surrounding environment.
When an infrared surveillance camera is used as the surveillance camera 7, the illuminating device 6 is unnecessary. Further, a radiation transmission device may be used as the surveillance camera, and various other methods may be used without departing from the scope of the present invention. Of course, changes can be made.
【００１８】[0018]
【発明の効果】以上述べた如く、本発明のカーテンコー
タにおける塗工液中の欠陥検出装置によれば、コータロ
ールに巻回されて走行する原紙の表面にカーテンコータ
ヘッドから塗工液をカーテン状に流下させて塗布させる
ようにしてあるカーテンコータにおける上記塗工液カー
テンの片面側に監視カメラを配置し、且つ該監視カメラ
で撮影した画像を処理して欠陥検出信号を出力するよう
にした画像処理装置を備えた構成としてあるので、塗工
液のカーテンを監視カメラで直接撮影して塗工液中の気
泡、異物等を画像処理装置で処理することにより欠陥を
自動的に検出することができ、又、塗工液塗布後の原紙
の幅端部にマーキングを行うためのマーキング装置と、
画像処理装置からの欠陥検出信号を基に該マーキング装
置にマーキング指令信号を送る制御器を備えた構成とす
ることにより、欠陥検出信号を基に原紙の幅端部に欠陥
部分を知らせるためのマーキングを行うことができるの
で、この部分を下流工程でカットすることにより、欠陥
製品の市場への流出を未然に防ぐことができ、更に、監
視カメラと対向するように、塗工液カーテンを挟んで照
明装置を設置した構成とすることによって、欠陥の検出
精度をより高めることができる、という優れた効果を発
揮する。As described above, according to the apparatus for detecting defects in a coating liquid in a curtain coater according to the present invention, the coating liquid is applied from a curtain coater head to the surface of a base paper wound around a coater roll and running. A surveillance camera is arranged on one side of the coating liquid curtain in a curtain coater adapted to flow down and apply, and an image taken by the surveillance camera is processed to output a defect detection signal. Since it has a configuration equipped with an image processing device, the defect of the coating liquid is automatically detected by directly photographing the curtain of the coating liquid with a monitoring camera and processing bubbles, foreign matter, etc. in the coating liquid with the image processing device. And a marking device for marking the width end of the base paper after applying the coating liquid,
A marking for notifying a defective portion at the width end of the base paper based on the defect detection signal by including a controller that sends a marking command signal to the marking device based on the defect detection signal from the image processing device. Therefore, by cutting this part in the downstream process, it is possible to prevent the defective product from flowing out to the market beforehand, and further, sandwich the coating liquid curtain so as to face the surveillance camera. With the configuration in which the lighting device is installed, an excellent effect that the accuracy of detecting a defect can be further improved is exhibited.
【図１】本発明のカーテンコータにおける塗工液中の欠
陥検出装置の実施の一形態を示すもので、（イ）は全体
の概略図、（ロ）は（イ）のＡ−Ａ方向矢視図である。FIG. 1 shows an embodiment of an apparatus for detecting a defect in a coating liquid in a curtain coater according to the present invention, wherein (a) is a schematic view of the entirety, and (b) is an arrow AA direction of (a). FIG.
【図２】カーテンコータの一例を示す概略図である。FIG. 2 is a schematic view showing an example of a curtain coater.
１ コータロール ２ 原紙 ３ カーテンコータヘッド ４ 塗工液 ４ａ カーテン ６ 照明装置 ７ 監視カメラ ８ 画像処理装置 １０ マーキング装置 １１ 制御器 Ｓ１ 欠陥検出信号 Ｓ２ マーキング指令信号1 coating rolls 2 sheet 3 curtain coater head 4 coating liquid 4a curtain 6 lighting device 7 surveillance camera 8 the image processing apparatus 10 marking device 11 controller S 1 defect detection signal S 2 marking command signal
───────────────────────────────────────────────────── フロントページの続き (72)発明者 濱口 幸洋 神奈川県横浜市磯子区新中原町１番地 石 川島播磨重工業株式会社横浜エンジニアリ ングセンター内 Ｆターム(参考） 2G051 AA34 AA90 AB01 AB02 AB12 AB20 CA04 CB02 DA06 DA15 4D075 AC14 AC72 AC86 AC97 CA47 DA04 DB18 4F041 AA12 AB02 BA05 BA51 CA04 CA21 4F042 AA22 AB00 DH09 4L055 CH10 CH30 DA09 DA13 DA40 FA23 FA30 GA19 ──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor Yukihiro Hamaguchi 1 Shin-Nakahara-cho, Isogo-ku, Yokohama-shi, Kanagawa Ishikawashima Harima Heavy Industries, Ltd. Yokohama Engineering Center F term (reference) 2G051 AA34 AA90 AB01 AB02 AB12 AB20 CA04 CB02 DA06 DA15 4D075 AC14 AC72 AC86 AC97 CA47 DA04 DB18 4F041 AA12 AB02 BA05 BA51 CA04 CA21 4F042 AA22 AB00 DH09 4L055 CH10 CH30 DA09 DA13 DA40 FA23 FA30 GA19
Claims (3)
の表面にカーテンコータヘッドから塗工液をカーテン状
に流下させて塗布させるようにしてあるカーテンコータ
における上記塗工液カーテンの片面側に監視カメラを配
置し、且つ該監視カメラで撮影した画像を処理して欠陥
検出信号を出力するようにした画像処理装置を備えた構
成を有することを特徴とするカーテンコータにおける塗
工液中の欠陥検出装置。1. A curtain coater in which a coating liquid is caused to flow down from a curtain coater head in a curtain shape to be applied to the surface of a base paper that is wound around a coater roll and travels, and is applied to one side of the coating liquid curtain. A defect in a coating liquid in a curtain coater, comprising: a surveillance camera, and an image processing device configured to process an image photographed by the surveillance camera and output a defect detection signal. Detection device.
グを行うためのマーキング装置と、画像処理装置からの
欠陥検出信号を基に該マーキング装置にマーキング指令
信号を送る制御器を備えた請求項１記載のカーテンコー
タにおける塗工液中の欠陥検出装置。2. A marking device for marking a width end portion of a base paper after application of a coating liquid, and a controller for sending a marking command signal to the marking device based on a defect detection signal from an image processing device. A defect detecting device in a coating liquid in the curtain coater according to claim 1.
ーテンを挟んで照明装置を設置した請求項１又は２記載
のカーテンコータにおける塗工液中の欠陥検出装置。3. A defect detecting device in a coating liquid in a curtain coater according to claim 1, wherein an illuminating device is installed with a coating liquid curtain interposed therebetween so as to face the surveillance camera.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2001074828A JP2002273309A (en) | 2001-03-15 | 2001-03-15 | Apparatus for detecting defect in coating liquid for curtain coater |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2001074828A JP2002273309A (en) | 2001-03-15 | 2001-03-15 | Apparatus for detecting defect in coating liquid for curtain coater |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JP2002273309A true JP2002273309A (en) | 2002-09-24 |
Family
ID=18932021
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2001074828A Pending JP2002273309A (en) | 2001-03-15 | 2001-03-15 | Apparatus for detecting defect in coating liquid for curtain coater |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2002273309A (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102008000122A1 (en) | 2007-02-24 | 2008-08-28 | Voith Patent Gmbh | System to monitor coating medium flow, at a web curtain coating applicator, uses acoustic waves to detect a local parameter deviation to activate a jet cleaning unit |
| EP2145693A1 (en) | 2008-07-16 | 2010-01-20 | Voith Patent GmbH | Monitoring of a coating agent flow when being applied to a paper, cardboard or other fibre sheet lengths |
| JP2013011510A (en) * | 2011-06-29 | 2013-01-17 | Dainippon Printing Co Ltd | Evaluation method of coating liquid |
| JP2015102456A (en) * | 2013-11-26 | 2015-06-04 | 日本電気株式会社 | Liquid feeding device and inspection method thereof |
| CN109146841A (en) * | 2018-07-02 | 2019-01-04 | 广州市讯思视控科技有限公司 | A kind of visible detection method and system of dry cell pulp layer paper filling defect |
| CN110091377A (en) * | 2019-06-03 | 2019-08-06 | 江苏万宝瑞达高新技术有限公司 | A kind of automatic cutting off apparatus of high-speed coating |
| CN111495702A (en) * | 2020-05-26 | 2020-08-07 | 苏州凌威新能源科技有限公司 | Detection control system and method for pole piece coating size |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04156972A (en) * | 1990-10-19 | 1992-05-29 | Kubota Corp | Film breakage inspecting device for flow coat painting equipment |
| JPH04235303A (en) * | 1991-01-10 | 1992-08-24 | Mitsubishi Paper Mills Ltd | Method and apparatus for measuring profile of applied amount |
| JPH0682385A (en) * | 1992-09-01 | 1994-03-22 | Mitsubishi Rayon Co Ltd | Defect inspection device |
| JPH09173935A (en) * | 1995-12-25 | 1997-07-08 | Matsushita Electric Works Ltd | Detection of coating state by flow coating and apparatus therefor |
| JP2000117173A (en) * | 1998-10-19 | 2000-04-25 | Konica Corp | Method and apparatus for monitoring liquid membrane, method and system for controlling production of web |
-
2001
- 2001-03-15 JP JP2001074828A patent/JP2002273309A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04156972A (en) * | 1990-10-19 | 1992-05-29 | Kubota Corp | Film breakage inspecting device for flow coat painting equipment |
| JPH04235303A (en) * | 1991-01-10 | 1992-08-24 | Mitsubishi Paper Mills Ltd | Method and apparatus for measuring profile of applied amount |
| JPH0682385A (en) * | 1992-09-01 | 1994-03-22 | Mitsubishi Rayon Co Ltd | Defect inspection device |
| JPH09173935A (en) * | 1995-12-25 | 1997-07-08 | Matsushita Electric Works Ltd | Detection of coating state by flow coating and apparatus therefor |
| JP2000117173A (en) * | 1998-10-19 | 2000-04-25 | Konica Corp | Method and apparatus for monitoring liquid membrane, method and system for controlling production of web |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102008000122A1 (en) | 2007-02-24 | 2008-08-28 | Voith Patent Gmbh | System to monitor coating medium flow, at a web curtain coating applicator, uses acoustic waves to detect a local parameter deviation to activate a jet cleaning unit |
| EP2145693A1 (en) | 2008-07-16 | 2010-01-20 | Voith Patent GmbH | Monitoring of a coating agent flow when being applied to a paper, cardboard or other fibre sheet lengths |
| JP2013011510A (en) * | 2011-06-29 | 2013-01-17 | Dainippon Printing Co Ltd | Evaluation method of coating liquid |
| JP2015102456A (en) * | 2013-11-26 | 2015-06-04 | 日本電気株式会社 | Liquid feeding device and inspection method thereof |
| CN109146841A (en) * | 2018-07-02 | 2019-01-04 | 广州市讯思视控科技有限公司 | A kind of visible detection method and system of dry cell pulp layer paper filling defect |
| CN109146841B (en) * | 2018-07-02 | 2021-07-02 | 广州市讯思视控科技有限公司 | Visual detection method and system for filling defects of dry battery coated paper |
| CN110091377A (en) * | 2019-06-03 | 2019-08-06 | 江苏万宝瑞达高新技术有限公司 | A kind of automatic cutting off apparatus of high-speed coating |
| CN110091377B (en) * | 2019-06-03 | 2024-06-04 | 江苏万宝瑞达高新技术有限公司 | Automatic cutting device of high-speed coating |
| CN111495702A (en) * | 2020-05-26 | 2020-08-07 | 苏州凌威新能源科技有限公司 | Detection control system and method for pole piece coating size |
| CN111495702B (en) * | 2020-05-26 | 2023-10-27 | 湖南领湃达志科技股份有限公司 | Detection control system and method for pole piece coating size |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP2002273309A (en) | Apparatus for detecting defect in coating liquid for curtain coater | |
| JP2009216539A (en) | Detector for hole/crack defect of belt-shaped object | |
| JP2002303580A (en) | Defect marking method and device for sheet like product | |
| JP2001305070A (en) | Method and device for marking defect in sheet product | |
| US8540543B2 (en) | Method for continuously manufacturing liquid crystal display panel and inspection method | |
| JPS6147542A (en) | Method and apparatus for inspecting surface of web | |
| JP2009053122A (en) | Visual inspection system for transparent film | |
| JP2002148198A (en) | Defect marking apparatus for sheet-like product | |
| JP4202707B2 (en) | Method for identifying periodic defect occurrence location and inspection system | |
| JP2017003352A (en) | Detecting device for faulty rubber adhesion of topping rubber sheets | |
| JP3445995B2 (en) | Edge crack / perforation detection device for band-like body Detection accuracy confirmation device for signal processing unit and detection accuracy confirmation method | |
| CN204188542U (en) | A kind of detection record device for detecting paper quality | |
| JPS62235551A (en) | Defect position display of strip object | |
| US4065213A (en) | Apparatus for and method of inspecting tubular textile goods | |
| JP6295765B2 (en) | Foil transfer defect inspection system | |
| JPH0631693A (en) | Slitter provided with defect inspecting device | |
| JP4749523B2 (en) | Film defect inspection equipment | |
| JP2701860B2 (en) | Monitoring method of adhesive application point | |
| JP2004125493A (en) | Inspection system | |
| JP2997327B2 (en) | Foreign matter inspection device | |
| JP2004109069A (en) | Defect distinguishing apparatus | |
| JP2004522974A (en) | Electronic imaging and quality control method for high-speed moving web | |
| JP2911685B2 (en) | Paper break prevention method and paper break prevention device in coating machine | |
| CN205631650U (en) | Braided bag laminating machine operation self -detection device | |
| US20070179035A1 (en) | Method and apparatus for a bag machine |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| A621 | Written request for application examination |
Free format text: JAPANESE INTERMEDIATE CODE: A621 Effective date: 20080129 |
|
| A977 | Report on retrieval |
Free format text: JAPANESE INTERMEDIATE CODE: A971007 Effective date: 20091126 |
|
| A131 | Notification of reasons for refusal |
Free format text: JAPANESE INTERMEDIATE CODE: A131 Effective date: 20091201 |
|
| A02 | Decision of refusal |
Free format text: JAPANESE INTERMEDIATE CODE: A02 Effective date: 20100330 |