JP2008096285A - Defect detection device of sheet-shaped object - Google Patents

Defect detection device of sheet-shaped object Download PDF

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JP2008096285A
JP2008096285A JP2006278434A JP2006278434A JP2008096285A JP 2008096285 A JP2008096285 A JP 2008096285A JP 2006278434 A JP2006278434 A JP 2006278434A JP 2006278434 A JP2006278434 A JP 2006278434A JP 2008096285 A JP2008096285 A JP 2008096285A
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light
sheet
defect
light source
solar cell
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Yoshikazu Kabaya
嘉一 蒲谷
Hidehito Minamizawa
秀仁 南澤
Masatomo Tokieda
正知 時枝
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Toray Industries Inc
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Abstract

<P>PROBLEM TO BE SOLVED: To provide a defect detector capable of supplying a power source to a defect detector control circuit by the power generated by using a solar cell at a defect inspection time, simultaneously with detection of deterioration of a light source, and performing efficient and accurate light source inspection. <P>SOLUTION: This defect detector has characteristics wherein a power generation amount is measured and monitored by using the solar cell adjacent to the light source or a light receiving part, to thereby detect deterioration of the light source, and simultaneously the power source is supplied to the detector control circuit by the power generated by the solar cell, in a method for detecting a defect of a sheet-shaped object by the detector control circuit by irradiating light to one surface of the running sheet-shaped object by a floodlight, and by receiving reflected light or transmitted light of the light irradiated to one surface of the sheet-shaped object by a light receiving part on the light irradiation surface or the other surface of the sheet-shaped object. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

本発明は、走行するシート状物の欠陥を検出する欠陥検出器に関するものである。   The present invention relates to a defect detector that detects a defect of a traveling sheet.

走行するシート状物の欠陥を検出する装置としては、シート状物の一方の面に投光部にて光を照射して、該シートの反射光または透過光を受光部で受光し、該受光部からの出力信号を測定して欠陥の有無を判定する装置が知られている（例えば特許文献１参照）。
また、塗布コーティングされたシート状物の欠陥を検出する装置が知られている（例えば特許分文献2、3参照）。
特開2004-77211号公報 特開平9-136323号公報 特開2004-283688号公報 As a device for detecting a defect of a traveling sheet-like object, light is irradiated on one surface of the sheet-like object by a light projecting unit, and reflected light or transmitted light of the sheet is received by a light receiving unit. There is known an apparatus for measuring the output signal from a section to determine the presence or absence of a defect (for example, see Patent Document 1).
In addition, an apparatus for detecting defects in a sheet-like material coated and coated is known (see, for example, Patent Documents 2 and 3).
JP 2004-77211 A Japanese Unexamined Patent Publication No. 9-13323 JP 2004-283688 A

しかし、従来のシート状物の欠陥を検出する検査装置においては、下記の問題点があった。
（１）投光器の光源を使用時間を基に交換する方法の場合、光源の劣化度合いにバラツキがあり、寿命がまだ残っているのに交換したり、交換時期よりも前に光源不良が発生してしまうケースがある。
（2）画像処理演算部で用いられる自動輝度制御の係数を基に交換時期を判断する方法では、光源の交換を実施していたが、それでは光源の交換が手遅れになってしまう。
（3）フォトディテクタを用いて光源劣化を判断する場合、点でのみ光源輝度を判断となるため、投光器の全幅にわたり正確に光源劣化を検出する事が困難である。 However, the conventional inspection apparatus for detecting defects in sheet-like materials has the following problems.
(1) In the method of replacing the light source of the projector based on the usage time, there is a variation in the deterioration degree of the light source, and the replacement is performed even if the lifetime still remains, or a light source failure occurs before the replacement time. There are cases where this happens.
(2) In the method of determining the replacement time based on the coefficient of automatic brightness control used in the image processing calculation unit, the light source is replaced. However, the replacement of the light source is too late.
(3) When light source deterioration is judged using a photodetector, the light source luminance is judged only by a point, and it is difficult to accurately detect light source deterioration over the entire width of the projector.

以上（1）〜（3）に挙げた光源の劣化の検出方法は投光器の光源不良を効率的に検出するものでなく、光源不良を見逃して、欠陥を流出したり、使用可能な光源を交換／廃棄する場合があり、ランニングコストが増大するなどの問題がある。また、検査ロスが発生し、検査効率が悪くなるなどの問題がある。また、厚いシート状物の欠陥検査をする際、光源は強く投光する必要があるが、その際多量の電力が消費される。   The light source deterioration detection methods listed in (1) to (3) above do not efficiently detect the light source failure of the projector, but overlook the light source failure, leak the defect, or replace the usable light source. / There is a problem that the running cost is increased in some cases. In addition, there is a problem that inspection loss occurs and inspection efficiency deteriorates. Further, when inspecting a defect of a thick sheet-like material, the light source needs to emit light strongly, but at that time, a large amount of power is consumed.

本発明は、かかる従来技術の背景に鑑み、光源の劣化を検出すると同時に、欠点検査時に太陽電池を用いて発電する電力で欠点検出器制御回路に電源を供給可能な、効率的かつ正確な光源検査が可能な欠陥検出器を提供せんとするものである。   In view of the background of the prior art, the present invention is an efficient and accurate light source capable of supplying power to a defect detector control circuit with electric power generated using a solar cell at the time of defect inspection while detecting deterioration of the light source. It is intended to provide a defect detector that can be inspected.

本発明は、かかる課題を解決するために、次のような手段を採用するものである。すなわち、本発明の欠陥検出器は、走行するシート状物の一方の面に投光器で光を照射し、該シート状物の光照射面または他方の面において前記シート状物の一方の面に照射した光の反射光または透過光を受光部にて受光することにより、該シート状物の欠陥を検出器制御回路にて検出する方法において、光源または受光部に隣接した太陽電池を用いて発電量を計測し監視することで光源劣化を検出し、かつ同時に該太陽電池にて発電した電力によって、該検出器制御回路に電源を供給することを特徴とするものである。   The present invention employs the following means in order to solve such problems. That is, the defect detector of the present invention irradiates light on one surface of a traveling sheet material with a projector, and irradiates one surface of the sheet material on the light irradiation surface or the other surface of the sheet material. In a method of detecting a defect of the sheet-like material with a detector control circuit by receiving reflected light or transmitted light of the light with a light receiving unit, the amount of power generation using a solar cell adjacent to the light source or the light receiving unit The light source deterioration is detected by measuring and monitoring the power, and power is supplied to the detector control circuit simultaneously with the power generated by the solar cell.

本発明の欠陥検出器の好ましい態様は、次の通りである。すなわち、
（1）該検出器制御回路が、プログラマブルロジックコントローラ（PLC）回路を持ち、かつ、該太陽電池から電源供給を受けながら動作し、光源に不良が発生した際、該制御回路に設けられた警報装置から警告を発し光源の投光不良箇所を特定することを特徴とすること、
（2）該欠陥検出器が、反射率70％以上のシート状物の欠点を検出するものであること、
（3）該欠陥検出器が、全光線透過率85%以上のシート状物の欠点を検出するものであること、
（4）該投光器が、シート状物の幅1mあたり出力100W以上の光源を用いるものであること、
（5）該投光器が、シート状物の幅1mあたり光束10000lm以上の光源を複数用いるものであること、
である。 Preferred embodiments of the defect detector of the present invention are as follows. That is,
(1) The detector control circuit has a programmable logic controller (PLC) circuit, operates while receiving power supply from the solar cell, and an alarm provided in the control circuit when a failure occurs in the light source It is characterized by issuing a warning from the device and identifying the light projection failure location of the light source,
(2) The defect detector detects a defect of a sheet-like material having a reflectance of 70% or more,
(3) the defect detector detects a defect of a sheet-like material having a total light transmittance of 85% or more;
(4) The projector uses a light source with an output of 100 W or more per 1 m width of the sheet-like material,
(5) The projector uses a plurality of light sources having a luminous flux of 10000 lm or more per 1 m width of the sheet-like material,
It is.

本発明によれば、光源劣化を検出し、かつ同時に発電し、検出器制御回路に電源を供給することが可能となるので、省エネが可能であるとともに、光源劣化をいち早く検出することができ、欠陥シート状物の流出防止をすることが確実に可能となる。   According to the present invention, since it is possible to detect light source deterioration and simultaneously generate power and supply power to the detector control circuit, it is possible to save energy and quickly detect light source deterioration, It is possible to reliably prevent the defective sheet from flowing out.

本発明は、前記課題、つまり光源の劣化を検出すると同時に、欠点検査時に太陽電池を用いて発電する電力で欠点検出器制御回路に電源を供給可能な、効率的かつ正確な光源検査が可能な欠陥検出器について、鋭意検討し、光源または受光部に隣接した太陽電池を用いて発電量を計測し監視することで光源劣化を検出し、同時に該太陽電池によって発電された電気を電源として、検出器制御回路に供給してみたところ、かかる課題を一挙に解決することを究明したものである。   The present invention can detect the above-mentioned problem, that is, the deterioration of the light source, and at the same time, can efficiently supply the defect detector control circuit with the power generated by using the solar cell at the time of defect inspection, enabling efficient and accurate light source inspection Investigate the defect detector and detect the degradation of the light source by measuring and monitoring the amount of power generation using the solar cell adjacent to the light source or the light receiving unit, and at the same time detect the electricity generated by the solar cell as the power source As a result, we have found that this problem can be solved all at once.

本発明においてシート状物とは、紙や布などの繊維製品や、熱可塑性樹脂および／または熱硬化性樹脂製のフィルムなどいずれであってもよい。   In the present invention, the sheet-like material may be a fiber product such as paper or cloth, a film made of a thermoplastic resin and / or a thermosetting resin, or the like.

本発明の欠陥検出器は、かかるシート状物に投光器から光をあてて、その反射光または透過光を太陽電池に受光して、その太陽電池で発電した電力を計測して監視する方式を採用するものである。   The defect detector of the present invention employs a system in which light from a projector is applied to such a sheet, the reflected light or transmitted light is received by a solar cell, and the power generated by the solar cell is measured and monitored. To do.

したがって、非透明シート状物においては、反射率は高いほど良く、また透明シート状物に関しては全光線透過率が高い程良い。すなわち、波長５６０nmの光において、好ましくは反射率７０％以上、より好ましくは８５％以上である場合、本発明の効果を好適に達成することができる。これは反射率が高いほど反射光が大きくなり、太陽電池での発電量が増大するとともに、光源不良の欠陥検出の精度が向上するというものである。また、熱可塑性樹脂および／または熱硬化性樹脂製のフィルムなど透明なシート状物においては、同様に波長５６０nmの光において、好ましくは全光線透過率８５%以上、より好ましくは９０％以上のシート状物である場合、本発明の効果を好適に達成することができる。これは全光線透過率が高いほど発電量が増大するとともに、光源不良の欠陥検出精度が向上することができるからである。   Therefore, the higher the reflectance, the better for the non-transparent sheet, and the higher the total light transmittance for the transparent sheet. That is, in the case of light having a wavelength of 560 nm, when the reflectance is preferably 70% or more, more preferably 85% or more, the effect of the present invention can be suitably achieved. This means that the higher the reflectance, the larger the reflected light, the more the amount of power generated by the solar cell, and the higher the accuracy of detecting a defect of a light source defect. In the case of a transparent sheet such as a thermoplastic resin and / or a film made of a thermosetting resin, it is preferably a sheet having a total light transmittance of 85% or more, more preferably 90% or more in the light having a wavelength of 560 nm. In the case of a shape, the effects of the present invention can be suitably achieved. This is because, as the total light transmittance is higher, the amount of power generation increases and the defect detection accuracy of a light source failure can be improved.

ここで、波長５６０nmの光の反射率とは、フィルムサンプルを２５ｍｍ×５０ｍｍ（長軸方向とフィルムの長手方向を合わせる）にカットして（株）島津製作所製分光光度計UV-2450に、６０mmφ積分球ユニットISR-2200を装着した状態で、硫酸バリウム（株式会社島津製作所指定部品：200-53627）を標準板として５６０nmでの８°傾斜における反射率を測定したものである。
また、全光線透過率とは、フィルムサンプルを２５ｍｍ×５０ｍｍ（長軸方向とフィルムの長手方向を合わせる）にカットして、スガ試験機（株）製ヘイズコンピューターHZ-2を用いて日本工業規格（JIS）K-7105に従い全光線透過率を測定したものである。 Here, the reflectance of light having a wavelength of 560 nm means that a film sample is cut into 25 mm × 50 mm (the major axis direction is aligned with the longitudinal direction of the film), and the spectrophotometer UV-2450 manufactured by Shimadzu Corporation is 60 mmφ In the state where the integrating sphere unit ISR-2200 is mounted, the reflectivity at an inclination of 8 ° at 560 nm is measured using barium sulfate (specified by Shimadzu Corporation: 200-53627) as a standard plate.
The total light transmittance is a Japanese Industrial Standard using a haze computer HZ-2 manufactured by Suga Test Instruments Co., Ltd. The total light transmittance was measured according to (JIS) K-7105.

本発明を図面を用いて、以下説明する。   The present invention will be described below with reference to the drawings.

図１は本発明の欠陥検出装置の構成図である。   FIG. 1 is a block diagram of a defect detection apparatus according to the present invention.

図１のシート状物６の一方の面側に投光器１を設置して、該光をシート状物６に光を照射し、該シート状物６を挟んだ反対側に受光器の電荷撮像素子（以下、CCDとする）カメラ４を設置し、このCCDカメラ４を用いて、その透過光または反射光を太陽電池パネル５に受光して、その太陽電池で発電した電力を計測して監視するものである。   The light projector 1 is installed on one surface side of the sheet-like material 6 in FIG. 1, the light is irradiated to the sheet-like material 6, and the charge imaging device of the light receiver is placed on the opposite side of the sheet-like material 6. A camera 4 (hereinafter referred to as CCD) is installed, and the CCD camera 4 is used to receive the transmitted light or reflected light on the solar cell panel 5 and measure and monitor the power generated by the solar cell. Is.

かかる投光器１は特に限定されず、公知の投光器を使用することができる。例えば、投光器１に蛍光灯や光伝達棒を用いることができる。かかる投光器１としては、光源の出力が高く、また照度が高いほど、太陽電池（太陽電池パネルともいう）５での発電量が向上すると同時に、光源の欠陥検出の精度が向上するので、かかる光源としては、シート状物の幅１mあたり出力１００W以上の光源を用いることが望ましい。さらにシート状物の幅１mあたり光束１００００lm以上の光源を複数用いることがより好ましい。   Such a projector 1 is not particularly limited, and a known projector can be used. For example, a fluorescent lamp or a light transmission rod can be used for the projector 1. As such a projector 1, as the output of the light source is higher and the illuminance is higher, the power generation amount in the solar cell (also referred to as a solar cell panel) 5 is improved and at the same time, the accuracy of defect detection of the light source is improved. It is desirable to use a light source with an output of 100 W or more per 1 m width of the sheet-like material. It is more preferable to use a plurality of light sources having a luminous flux of 10,000 lm or more per 1 m width of the sheet-like material.

なお、以降の説明において、シート状物の走行方向を単に走行方向、そしてシート状物の幅方向を単に幅方向という。   In the following description, the traveling direction of the sheet-like material is simply referred to as the traveling direction, and the width direction of the sheet-like material is simply referred to as the width direction.

本発明においては、使用する太陽電池５は特に限定されないが、変換効率の高い太陽電池セル、単結晶シリコン、多結晶シリコン、単結晶化合物、多結晶化合物、アモルファスが使用可能だが、特に変換効率の良い太陽電池５が好ましい。   In the present invention, the solar cell 5 to be used is not particularly limited, but a solar cell with high conversion efficiency, single crystal silicon, polycrystalline silicon, single crystal compound, polycrystalline compound, and amorphous can be used. A good solar cell 5 is preferred.

たとえば、図１の例では、投光器１として出力１１０Wの蛍光灯で輝度１１０００lmの蛍光灯を９本を幅方向に図３に例示したように設置し、光源からシート状物までの距離を３０cmとしたものである。なお、太陽電池５は、公称最大出力７００Wの多結晶太陽電池を、上部太陽電池パネル５と、下部太陽電池パネル５と合わせて合計６ｍ２となるように設置したものである。また、下部太陽電池パネル５は、投光器１を囲むように設置し、上部太陽電池パネル５は、受光器のCCDカメラ４を囲むように設置したものを使用することにより、より正確な光源不良の欠陥検出精度が得られるものである。 For example, in the example of FIG. 1, nine fluorescent lamps having an output of 110 W and a luminance of 11000 lm are installed as the projector 1 in the width direction as illustrated in FIG. 3, and the distance from the light source to the sheet is 30 cm. It is a thing. Note that the solar cell 5, a polycrystalline solar cell having a nominal maximum output 700 W, the upper solar cell panel 5 is obtained by installed such that the total 6 m 2 together with the lower solar cell panel 5. In addition, the lower solar cell panel 5 is installed so as to surround the projector 1, and the upper solar cell panel 5 is used so as to surround the CCD camera 4 of the light receiver, so that a more accurate light source failure can be achieved. Defect detection accuracy can be obtained.

すなわち、ここでいう投光器１および受光器４をその周辺を囲むように配置されている太陽電池は、太陽電池セルを投光器１及びまたは受光器４に近接して配置されて形成されたものであり、かかる投光器１および受光器４の太陽電池を含め、かかる太陽電池パネル５は、シート状物全幅をカバーできるように配置し、各太陽電池セルの発電量を計測し監視することで隣接した投光器１の光源劣化を検出するとともに劣化した光源の位置も特定するものである。
なお、受光効率を高めるために、上記太陽電池５は傾斜角度を調整するのが好ましく、たとえば、図１の例では、該下部太陽電池パネル５は、傾斜角度５０°で設置し、上部太陽電池パネル５は、傾斜角度を４０°で設置さているものが使用されているものである。 In other words, the solar cell disposed so as to surround the projector 1 and the light receiver 4 here is formed by arranging the solar cells in the vicinity of the projector 1 and / or the light receiver 4. The solar cell panel 5 including the solar cells of the projector 1 and the light receiver 4 is arranged so as to cover the entire width of the sheet-like material, and the adjacent projectors are measured and monitored by measuring the power generation amount of each solar cell. 1 and the position of the deteriorated light source are specified.
In order to increase the light receiving efficiency, it is preferable to adjust the inclination angle of the solar cell 5. For example, in the example of FIG. 1, the lower solar cell panel 5 is installed at an inclination angle of 50 °, and the upper solar cell. The panel 5 is installed with an inclination angle of 40 °.

次に、図２は、本発明の欠陥検出器の作動中の様子を示したものであり、投光器１から照射された光は、シート状物６により反射された反射光３が太陽電池パネル５により受光され、一方で透過した透過光は上部の太陽電池パネル５で受光して発電される。この際発電される電力はプログラマブルロジックコントローラ（以下、PLCとする）回路８に供給される。また、シート状物６を透過した透過光２は、受光器のCCDカメラ４によって受光され、映像は画像処理装置７を経て解析され、欠陥を検知した場合には、警報装置９により警告を発し、欠陥検出器の前工程１０と欠陥検出器の後工程１１に情報をフィードバックし各工程で対策手段を講ずる。   Next, FIG. 2 shows a state in which the defect detector of the present invention is in operation, and the light irradiated from the projector 1 is the reflected light 3 reflected by the sheet-like object 6 being the solar cell panel 5. On the other hand, the transmitted light that has been transmitted is received by the upper solar cell panel 5 and generated. The electric power generated at this time is supplied to a programmable logic controller (hereinafter referred to as PLC) circuit 8. The transmitted light 2 transmitted through the sheet 6 is received by the CCD camera 4 of the light receiver, the video is analyzed through the image processing device 7, and a warning is issued by the alarm device 9 when a defect is detected. Information is fed back to the defect detector pre-process 10 and the defect detector post-process 11 to take countermeasures in each process.

ここで、前記受光器としては、CCD素子が一列に並んだラインセンサカメラなど公知のものを用いることができる。また、かかる受光部はシート状物からの反射光及び／または透過光を受光することができるものである。   Here, as the light receiver, a known device such as a line sensor camera in which CCD elements are arranged in a line can be used. Further, such a light receiving part can receive reflected light and / or transmitted light from the sheet-like material.

また、本発明において、上記画像処理装置は特に限定されず、公知の画像処理装置を使用することができる。例えば、受光部で検知した光をA/D変換した後にパラメータ化し、演算処理を行う画像処理装置や、受光部で検知した光量を用いて演算処理を行う画像処理装置などが好ましく用いられる。特に、比較的低電力（150W）で稼働できるPLC（プログラマブルロジックコントローラ）制御回路を持ち、容易に欠陥検査を開始、終了を決定できる画像処理装置が望ましい。   In the present invention, the image processing apparatus is not particularly limited, and a known image processing apparatus can be used. For example, an image processing device that performs parameterization after A / D conversion of light detected by the light receiving unit and performs arithmetic processing, an image processing device that performs arithmetic processing using the amount of light detected by the light receiving unit, and the like are preferably used. In particular, an image processing apparatus that has a PLC (programmable logic controller) control circuit that can operate at a relatively low power (150 W) and can easily determine the start and end of defect inspection is desirable.

かかる画像処理装置は、シート状物の一方の面に照射した光の反射光または透過光を用いて、光源または受光部に隣接した太陽電池で発電し、検出器制御回路に電源を供給されることで稼働する方式であるのが望ましい。   Such an image processing device generates power by a solar cell adjacent to a light source or a light receiving unit using reflected or transmitted light of light irradiated on one surface of a sheet-like material, and is supplied with power to a detector control circuit. It is desirable that this is a system that works.

また、太陽電池パネル５は、シート状物６の透過光２、反射光３を余すことなく受光するために、シート状物６の全体を覆う形に展張されており、かつ、受光器のCCDカメラ４に集光させるように傾斜角度をつけて設置されていることは、もちろん、図３、４のように投光器１またはCCDカメラ４にも、その周辺を囲むように配置されているのが好ましい。かくして、シート状物６の欠陥検査中は、かかる透過光２、反射光３を、太陽電池のパネル５で受光して発電し、PLC回路８は太陽電池パネル５で発電される電力を供給されて、自立して稼働することができる。   Further, the solar cell panel 5 is extended so as to cover the entire sheet-like object 6 so as to receive the transmitted light 2 and reflected light 3 of the sheet-like object 6 without leaving any excess, and the CCD of the light receiver. Of course, the projector 4 is installed with an inclination angle so that the light is condensed. As shown in FIGS. 3 and 4, the projector 1 or the CCD camera 4 is also arranged so as to surround the periphery thereof. preferable. Thus, during the defect inspection of the sheet-like object 6, the transmitted light 2 and the reflected light 3 are received by the solar cell panel 5 to generate electric power, and the PLC circuit 8 is supplied with electric power generated by the solar cell panel 5. Can operate independently.

図５は、本発明の欠陥検出装置の回路図の概要を示す。隣接する投光器１に欠陥が発生した場合、隣接する太陽電池パネル５の発電量が低下するので、このPLC回路８は太陽電池パネル５からの供給電力低下のためにオフになり、自動的に外部直流電源に切り替わり、投光器不良の警報を該警報装置９により発すると同時に投光器不良の発生位置を特定するものである。   FIG. 5 shows an outline of a circuit diagram of the defect detection apparatus of the present invention. When a defect occurs in the adjacent projector 1, the power generation amount of the adjacent solar panel 5 is reduced, so that the PLC circuit 8 is turned off due to a decrease in power supplied from the solar panel 5, and automatically Switching to a DC power source is used to issue a projector failure alarm by the alarm device 9 and at the same time specify the location of the projector failure.

該警報装置９のような警報発生機構を設けたことにより、欠陥が検出された場合に、次の工程で適切な処置を行うことにより、ロスを最小限に抑えることが可能となったものである。   By providing an alarm generating mechanism such as the alarm device 9, it is possible to minimize loss by performing appropriate measures in the next process when a defect is detected. is there.

実施例で用いる反射率、全光線透過率の測定方法を下記に示す。   The measuring method of the reflectance and total light transmittance used in the examples is shown below.

（１）波長560nmの光の反射率：
フィルムサンプルを25ｍｍ×50ｍｍ（長軸方向とフィルムの長手方向を合わせる）にカットして（株）島津製作所製分光光度計UV-2450に、60mmφ積分球ユニットISR-2200を装着した状態で、硫酸バリウム（株式会社島津製作所指定部品：200-53627）を標準板として560nmでの8°傾斜における反射率を測定した。 (1) Reflectance of light having a wavelength of 560 nm:
A film sample is cut to 25 mm x 50 mm (the long axis direction and the film longitudinal direction are matched), and a 60 mmφ integrating sphere unit ISR-2200 is attached to a spectrophotometer UV-2450 manufactured by Shimadzu Corporation. Using barium (Specified Parts: Shimadzu Corporation: 200-53627) as a standard plate, the reflectivity at 560 nm at an inclination of 8 ° was measured.

（２）全光線透過率：
フィルムサンプルを25mm×50mm（長軸方向とフィルムの長手方向を合わせる）にカットして、スガ試験機（株）製ヘイズコンピューターHZ-2を用いて日本工業規格（JIS）K-7105に従い全光線透過率を測定した。 (2) Total light transmittance:
Cut the film sample to 25mm x 50mm (match the long axis direction with the film longitudinal direction), and use the Haze Computer HZ-2 manufactured by Suga Test Instruments Co., Ltd. according to Japanese Industrial Standard (JIS) K-7105. The transmittance was measured.

（実施例１）
図１の欠陥検出器を用いて、反射率９８%の白色シート状物６を欠陥検査を行ったが、PLC回路８は太陽電池パネル５から供給される電力で稼働し、投光器１に不良が発生した際、警報装置９から警報を発すると同時に投光器１の不良位置を示した。 (Example 1)
The defect detector shown in FIG. 1 was used to inspect the white sheet 6 having a reflectance of 98%, but the PLC circuit 8 is operated by the power supplied from the solar panel 5 and the projector 1 is defective. When it occurred, an alarm was issued from the alarm device 9 and at the same time the defective position of the projector 1 was indicated.

（実施例２）
図１の欠陥検出器を用いて、ヘイズ０．３７、全光線透過率９２．９%の透明シート状物６を用いて欠陥検出器を稼働したが、PLC回路８は太陽電池パネル５から電源供給を受けながら動作し、投光器１に不良が発生した際は警報装置９から警告を発し、投光器１の投光不良箇所を特定した。 (Example 2)
The defect detector of FIG. 1 was used to operate the defect detector using a transparent sheet 6 having a haze of 0.37 and a total light transmittance of 92.9%. It operated while being supplied, and when a failure occurred in the projector 1, a warning was issued from the alarm device 9, and a light projection failure location of the projector 1 was specified.

本発明の欠陥検出器の一例を示す概略図である。It is the schematic which shows an example of the defect detector of this invention. 本発明の欠陥検出器の動作を示す図である。It is a figure which shows operation | movement of the defect detector of this invention. 本発明の欠陥検出器の下部太陽電池パネルと投光器の配置図であるIt is a layout view of the lower solar cell panel and the projector of the defect detector of the present invention. 本発明の欠陥検出器の上部太陽電池パネルとCCDカメラの配置図である。It is an arrangement view of the upper solar cell panel and the CCD camera of the defect detector of the present invention. 本発明の欠陥検出器の回路図である。It is a circuit diagram of the defect detector of the present invention.

符号の説明Explanation of symbols

1: 投光器
2: 透過光
3: 反射光
4: CCDカメラ
5: 太陽電池パネル
6: シート状物
7: 画像処理装置
8: PLC回路
9: 警報装置
10: 欠陥検出器の前工程
11: 欠陥検出器の後工程 1: Floodlight
2: Transmitted light
3: Reflected light
4: CCD camera
5: Solar panel
6: Sheet
7: Image processing device
8: PLC circuit
9: Alarm device
10: Pre-process of defect detector
11: Subsequent process of defect detector

Claims (6)

走行するシート状物の一方の面に投光器で光を照射し、該シート状物の光照射面または他方の面において前記シート状物の一方の面に照射した光の反射光または透過光を受光部にて受光することにより、該シート状物の欠陥を検出器制御回路にて検出する方法において、光源または受光部に隣接した太陽電池を用いて発電量を計測し監視することで光源劣化を検出し、かつ同時に該太陽電池にて発電した電力によって、該検出器制御回路に電源を供給することを特徴とする欠陥検出器。   Irradiate light on one surface of the traveling sheet with a projector, and receive reflected or transmitted light of the light irradiated on one surface of the sheet on the light irradiation surface or the other surface of the sheet In the method of detecting defects in the sheet-like material by the detector control circuit by receiving light at the light source, the amount of power generation is measured and monitored by using a solar cell adjacent to the light source or the light receiving part. A defect detector, characterized in that power is supplied to the detector control circuit by the electric power detected and simultaneously generated by the solar cell. 該検出器制御回路が、プログラマブルロジックコントローラ（PLC）回路を持ち、かつ、該太陽電池から電源供給を受けながら動作し、光源に不良が発生した際、該制御回路に設けられた警報装置から警告を発し光源の投光不良箇所を特定することを特徴とする請求項１に記載の欠陥検出器。   When the detector control circuit has a programmable logic controller (PLC) circuit and operates while receiving power from the solar cell, and a failure occurs in the light source, a warning is issued from an alarm device provided in the control circuit. The defect detector according to claim 1, wherein a defective projection portion of the light source is identified. 該欠陥検出器が、反射率70％以上のシート状物の欠点を検出するものである請求項１または２に記載の欠陥検出器。   The defect detector according to claim 1 or 2, wherein the defect detector detects a defect of a sheet-like material having a reflectance of 70% or more. 該欠陥検出器が、全光線透過率85%以上のシート状物の欠点を検出するものである請求項１または２に記載の欠陥検出器。   The defect detector according to claim 1 or 2, wherein the defect detector detects a defect of a sheet-like material having a total light transmittance of 85% or more. 該投光器が、シート状物の幅1mあたり出力100W以上の光源を用いるものである請求項１〜４のいずれかに記載の欠陥検出器。   The defect detector according to any one of claims 1 to 4, wherein the light projector uses a light source having an output of 100 W or more per 1 m width of the sheet-like material. 該投光器が、シート状物の幅1mあたり光束10000lm以上の光源を複数用いるものである請求項１〜４のいずれかに記載の欠陥検出器。   The defect detector according to claim 1, wherein the projector uses a plurality of light sources having a luminous flux of 10,000 lm or more per 1 m width of the sheet-like material.
JP2006278434A 2006-10-12 2006-10-12 Defect detection device of sheet-shaped object Pending JP2008096285A (en)

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Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102998313A (en) * 2012-12-12 2013-03-27 江南大学 Image acquisition and processing method for quality detection of compact spinning lattice apron
CN104749181A (en) * 2013-12-27 2015-07-01 波司登羽绒服装有限公司 Fabric examination system for identifying defect point of fabric
JP2018169262A (en) * 2017-03-29 2018-11-01 三井化学株式会社 Method for evaluating degree of dispersion of fiber
CN109270067A (en) * 2018-09-29 2019-01-25 格力电器（武汉）有限公司 Method, device and system for detecting appearance of equipment
CN109712120A (en) * 2018-12-13 2019-05-03 哈尔滨理工大学 A kind of Yarn filoplume defect inspection method based on image procossing
CN110672623A (en) * 2019-10-21 2020-01-10 武汉纺织大学 Geometric appearance defect detection method for solar cell

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102998313A (en) * 2012-12-12 2013-03-27 江南大学 Image acquisition and processing method for quality detection of compact spinning lattice apron
CN104749181A (en) * 2013-12-27 2015-07-01 波司登羽绒服装有限公司 Fabric examination system for identifying defect point of fabric
JP2018169262A (en) * 2017-03-29 2018-11-01 三井化学株式会社 Method for evaluating degree of dispersion of fiber
CN109270067A (en) * 2018-09-29 2019-01-25 格力电器（武汉）有限公司 Method, device and system for detecting appearance of equipment
CN109712120A (en) * 2018-12-13 2019-05-03 哈尔滨理工大学 A kind of Yarn filoplume defect inspection method based on image procossing
CN110672623A (en) * 2019-10-21 2020-01-10 武汉纺织大学 Geometric appearance defect detection method for solar cell
CN110672623B (en) * 2019-10-21 2021-05-28 武汉纺织大学 Geometric appearance defect detection method for solar cell

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