JP6210620B2 - Cloth inspection equipment - Google Patents

Cloth inspection equipment Download PDF

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JP6210620B2
JP6210620B2 JP2013108306A JP2013108306A JP6210620B2 JP 6210620 B2 JP6210620 B2 JP 6210620B2 JP 2013108306 A JP2013108306 A JP 2013108306A JP 2013108306 A JP2013108306 A JP 2013108306A JP 6210620 B2 JP6210620 B2 JP 6210620B2
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cloth
conveyor
reflecting mirror
dust
inspection apparatus
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JP2014228399A (en
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誠 矢野
誠 矢野
誉生 林田
誉生 林田
哲平 伊賀
哲平 伊賀
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Purex Corp
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Description

この発明は、布類洗濯工場等においてアイロンローラ等から搬出された、拡げられた布類の表面または内部の汚れや破れ等の異常を検出する布類検査装置に関し、特には、布類を下方から検査するための反射鏡への埃の堆積を減らすかもしくは実質的になくして検査精度を長期間維持する布類検査装置に関するものである。   The present invention relates to a cloth inspection apparatus for detecting abnormalities such as dirt or tears on the surface or inside of an expanded cloth carried out from an ironing roller or the like in a cloth laundry factory or the like, and in particular, the cloth below The present invention relates to a cloth inspection apparatus that maintains or maintains inspection accuracy for a long period of time by reducing or substantially eliminating dust accumulation on a reflector for inspection.

布類洗濯工場においては、病院やホテル等で使用されたシーツや布団カバー等の布類を洗濯した後、半乾きの状態で展張機により展張し、アイロンローラに送ってアイロン掛けし、折畳み機により折畳んで病院やホテル等へ再度供給している。   In cloth washing factories, after washing cloths such as sheets and bedding covers used in hospitals and hotels, etc., they are stretched by a stretcher in a semi-dry state, sent to an iron roller, ironed, and a folding machine It is folded and supplied again to hospitals and hotels.

従って、上記洗濯処理中の布類の表面または内部に汚れや破れ等の異常があった場合には、その布類を上述した通常の洗濯処理ラインから排除して別途処理する必要があり、このため本願出願人は、布類の表面または内部の汚れや破れ等の異常を検出する布類検査装置として従来、例えば特許文献1記載のものを提案している。   Therefore, if there is an abnormality such as dirt or tear on the surface or inside of the cloth during the washing process, it is necessary to remove the cloth from the above-described normal washing processing line and separately process it. For this reason, the applicant of the present application has conventionally proposed, for example, one described in Patent Document 1 as a cloth inspection device for detecting abnormalities such as dirt or tear on the surface or inside of a cloth.

この布類検査装置は、アイロンローラの下流側に配置される折畳み機と組み合わされて布類の表裏両面を検査するものであり、アイロンローラに連なる1番目のベルトコンベヤ上を搬送する布類の上向きの面(通常は表面を下向きにしてアイロンローラにかけるため、アイロンローラを出た時点では裏面)を上方から1番目のカメラで撮影し、次いでその1番目のベルトコンベヤの終端部から下部にかけて向き合わせた2番目のベルトコンベヤで、1番目のベルトコンベヤの終端部から垂れ下がった布類を裏返してから、その布類を1番目のベルトコンベヤと2番目のベルトコンベヤとで挟んで搬送し、その2番目のベルトコンベヤの終端部から3番目のベルトコンベヤに引き渡す間に、布類のもう一方の面(通常は表面)を2番目のカメラで撮影し、これらのカメラで撮影した画像から、布類の両表面の汚れ等を検出し、その汚れ等が検出された布類は、通常の洗濯処理ラインから排除している。   This cloth inspection device inspects both the front and back surfaces of a cloth in combination with a folding machine arranged on the downstream side of the iron roller, and is used for the cloth conveyed on the first belt conveyor connected to the iron roller. Take a picture of the upward surface (usually the back side is facing the iron roller, so the back side when the iron roller comes out) with the first camera from the top, then from the end of the first belt conveyor to the bottom With the second belt conveyor facing each other, turn the cloth hanging from the end of the first belt conveyor over, and then transport the cloth sandwiched between the first belt conveyor and the second belt conveyor, During the delivery from the end of the second belt conveyor to the third belt conveyor, the other side of the cloth (usually the front side) is moved to the second camera. From the photographed, taken with these camera images, cloth for detecting the dirt, the dirt is detected on both surfaces of the textiles are excluded from the normal washing process line.

本願出願人はまた、光源と検査対象の布類と間の光路の変更のために反射鏡を用いた布類検査装置を、例えば特許文献2で提案している。   The applicant of the present application has also proposed a cloth inspection apparatus using a reflecting mirror for changing the optical path between the light source and the cloth to be inspected, for example, in Patent Document 2.

特開2009−285109号公報JP 2009-285109 A 特開2011−242330号公報JP 2011-242330 A

ところで、本願出願人が上記従来の布類検査装置についてさらに研究を進めたところ、上記従来の布類検査装置では、布類の両面を検査するために検査対象の布類を裏返す必要があり、コンベヤの構成が複雑になるとともにカメラの配置の制約も大きいという不都合があることが判明し、この問題の解決のため本願出願人は、検査対象の布類をコンベヤ間で飛翔させ、その飛翔中の布類を下側から撮影する布類検査装置を特願2012−244318号にて提案しており、その場合に、カメラでシーツや布団カバー等の幅広の布類の幅全体を撮影するためには、カメラを布類からかなり離して配置する必要があって、布類の真下にカメラを配置したのでは装置全体の高さが高くなりすぎてしまうことから、本願出願人は上記特許文献2に鑑みて、上記出願では反射鏡を用いてカメラの光路を屈曲させることとした。   By the way, when the applicant of the present application has further studied the conventional cloth inspection apparatus, the conventional cloth inspection apparatus needs to turn over the cloth to be inspected in order to inspect both surfaces of the cloth. It has been found that there is an inconvenience that the configuration of the conveyor is complicated and the restrictions on the arrangement of the camera are large, and in order to solve this problem, the applicant of the present application causes the cloth to be inspected to fly between the conveyors and during the flight Japanese Patent Application No. 2012-244318 proposes a cloth inspection apparatus for photographing cloths from the lower side. In this case, in order to photograph the entire width of a wide cloth such as a sheet or a duvet cover with a camera. In this case, it is necessary to dispose the camera considerably away from the cloth, and if the camera is disposed directly under the cloth, the height of the entire apparatus becomes too high. In view of 2 , In the above application was bending the optical path of the camera by using a reflecting mirror.

しかしながら、特許文献2の場合には反射鏡を下向きに配置しているためさほど問題がなかったが、上記出願の装置のように布類を下側から撮影する場合には反射鏡を上向きに配置する必要があり、その一方、布類洗濯工場は埃が多いため、反射鏡を上向きに配置して検査しようとする場合、埃が頻繁に反射鏡の反射面上に落下して付着することで埃の堆積が早期に生じ、堆積した埃が検査精度に影響を及ぼす可能性があることが判明した。   However, in the case of Patent Document 2, there is not so much problem because the reflecting mirror is arranged downward, but when the cloth is photographed from the lower side as in the apparatus of the above application, the reflecting mirror is arranged upward. On the other hand, cloth laundry factories have a lot of dust, so when trying to inspect the reflector with the mirror facing upward, the dust often falls on the reflecting surface of the reflector and adheres to it. It was found that dust accumulation occurred early and the accumulated dust may affect the inspection accuracy.

この発明は、上述の如き従来の布類検査装置の課題を解決するものであり、この発明の布類両面検査装置は、
拡げられた布類の表面または内部の汚れ等の異常を少なくとも前記布類の下側から検査する布類検査装置において、
前記布類布類をそれぞれ搬送する送り出しコンベヤおよび受け取りコンベヤと、
前記送り出しコンベヤと前記受け取りコンベヤとの間の隙間を移動している前記布類に光源から照射されてその布類を透過した検査光と、その布類から反射した検査光とのうち、少なくともその布類を透過した検査光によって前記布類を撮影して画像を出力するカメラと、
前記送り出しコンベヤと前記受け取りコンベヤとの間の隙間を移動している前記布類の下方に位置し、前記隙間に沿って延在してその布類と前記カメラとの間の光路を屈曲させる反射鏡と、
前記反射鏡の反射面への埃の付着を減少させる埃避け手段と、
を具え
前記埃避け手段は、前記布類と前記カメラとの間の光路と干渉しない固定位置で前記反射鏡に沿って延在してその反射鏡の反射面に連続的または間欠的に風を吹きつけるブロー機構を有し、
前記ブロー機構は、そのブロー機構に沿って風の吹き出し口を移動させる移動機構を有することを特徴としている。
This invention solves the problem of the conventional cloth inspection apparatus as described above, and the cloth double-side inspection apparatus of this invention
In a cloth inspection device for inspecting abnormalities such as dirt on the surface or inside of the spread cloth at least from the lower side of the cloth,
A delivery conveyor and a reception conveyor for respectively conveying the fabrics;
At least the inspection light transmitted from the light source to the cloth moving through the gap between the sending conveyor and the receiving conveyor and transmitted through the cloth, and the inspection light reflected from the cloth. A camera that shoots the cloth with the inspection light transmitted through the cloth and outputs an image;
Reflection located below the fabric moving through the gap between the delivery conveyor and the receiving conveyor and extending along the gap to bend the optical path between the fabric and the camera With a mirror,
Dust avoiding means for reducing adhesion of dust to the reflecting surface of the reflecting mirror;
The equipped,
The dust avoiding means extends along the reflecting mirror at a fixed position that does not interfere with the optical path between the cloth and the camera, and blows wind continuously or intermittently on the reflecting surface of the reflecting mirror. Has a blow mechanism,
The blow mechanism has a moving mechanism for moving a wind outlet along the blow mechanism .

かかる本発明の布類検査装置にあっては、送り出しコンベヤと受け取りコンベヤとの間の隙間を移動している布類の下方に位置する反射鏡が、その布類とそれを撮影して画像を出力するカメラとの間の光路を横方向(斜め上下方向を含む)に屈曲させることにより、装置全体の高さをさほど高くせずして、シーツや布団カバー等の幅広の布類の幅全体をその布類からかなり離れた位置からカメラが撮影し、そして埃避け手段が、上記光路の屈曲のために上向き(斜め上向きを含む)となっている反射鏡の反射面への埃の付着を減少させる。   In the cloth inspection apparatus according to the present invention, the reflecting mirror located below the cloth moving through the gap between the delivery conveyor and the reception conveyor captures the cloth and the image. By bending the optical path to the output camera in the horizontal direction (including diagonally up and down directions), the overall width of wide cloths such as sheets and duvet covers is kept without increasing the overall height of the device. The camera takes a picture from a position far away from the cloth, and the dust avoiding means prevents the dust from adhering to the reflecting surface of the reflecting mirror which is upward (including obliquely upward) due to the bending of the optical path. Decrease.

従って、本発明の布類検査装置によれば、拡げられた布類の表面または内部の汚れ等の異常をその布類の下側から検査するための反射鏡への埃の堆積を減らすかもしくは実質的になくして、布類の検査精度を長期間維持することができる。   Therefore, according to the cloth inspection apparatus of the present invention, it is possible to reduce the accumulation of dust on the reflecting mirror for inspecting abnormalities such as dirt on the surface or inside of the spread cloth from the underside of the cloth, or The inspection accuracy of the cloth can be maintained for a long time substantially without it.

なお、この発明の布類検査装置においては、前記埃避け手段は、前記反射鏡の反射面の向きを上向き(斜め上向きを含む)と真横もしくは下向き(斜め下向きを含む)との間で変更する反射鏡向き変更機構を有していると好ましい。このようにすれば、反射鏡向き変更機構で、反射鏡の使用時はその反射面の向きを上向き(斜め上向きを含む)とする一方、反射鏡の不使用時はその反射面の向きを真横もしくは下向き(斜め下向きを含む)にすることで、反射面に埃がほとんど落下付着せず、付着した埃も自重で反射面から落下するので、反射面への埃の付着を減少させることができる。 In the cloth inspection device of the present invention, the dust avoiding means changes the direction of the reflecting surface of the reflecting mirror between upward (including obliquely upward) and right side or downward (including obliquely downward). It is preferable to have a reflecting mirror direction changing mechanism. In this way, the reflecting mirror direction changing mechanism makes the reflecting surface face upward (including diagonally upward) when the reflecting mirror is used, and when the reflecting mirror is not used, the reflecting surface is directed to the side. Alternatively, when facing downward (including diagonally downward), almost no dust falls and adheres to the reflective surface, and the attached dust also falls from the reflective surface by its own weight, so that the adhesion of dust to the reflective surface can be reduced. .

また、この発明の布類検査装置においては、前記埃避け手段は、前記反射鏡の反射面を覆う使用位置と、前記反射鏡の反射面から外れる待機位置との間でカバーを移動させるカバー移動機構を有していると好ましい。このようにすれば、カバー移動機構で、反射鏡の使用時はその反射面から外れる待機位置へカバーを移動させる一方、反射鏡の不使用時はその反射面を覆う使用位置へカバーを移動させることで、反射面に埃がほとんど落下付着しないので、反射面への埃の付着を減少させることができる。 Further, in the cloth inspection apparatus according to the present invention, the dust avoiding means moves the cover between a use position that covers the reflecting surface of the reflecting mirror and a standby position that deviates from the reflecting surface of the reflecting mirror. It is preferable to have a mechanism. In this way, the cover moving mechanism moves the cover to a standby position that is off the reflecting surface when the reflecting mirror is used, and moves the cover to a working position that covers the reflecting surface when the reflecting mirror is not used. As a result, almost no dust falls and adheres to the reflective surface, so that the adhesion of dust to the reflective surface can be reduced.

さらに、この発明の布類検査装置においては、前記埃避け手段は上述のように、前記布類と前記カメラとの間の光路と干渉しない固定位置で前記反射鏡に沿って延在してその反射鏡の反射面に連続的または間欠的に風を吹きつけるブロー機構を有していることから、ブロー機構で、反射鏡の反射面に連続的または間欠的に風を吹きつけることで、反射面に埃がほとんど落下付着せず、付着した埃も風の力で反射面から吹き落とされるので、反射面への埃の付着を減少させることができ、加えて、前記ブロー機構は、そのブロー機構に沿って風の吹き出し口を移動させる移動機構を有しているので、埃の吹き落とし機能増すことができる Its addition, the cloth inspection apparatus according to the present invention, the dust away means as described above, it extends along the reflector in a fixed position that does not interfere with the optical path between the camera and the cloth since the reflecting surface of the reflector is closed continuously or intermittently blow mechanism blowing wind, blow mechanism, continuously or at intermittent blowing wind on the reflecting surface of the reflector, the reflection is hardly drop adhering dust on the surface, since the deposited dust is also dropped blown from the reflective surface by the force of the wind, it is possible to reduce the adhesion of dust to the reflective surface, in addition, the blow mechanism, the blow because along the mechanism which have a moving mechanism for moving the outlet of the wind, it is possible to increase the blow-off function of dust.

この発明の布類検査装置の第1参考例の構成を示す側面図である。It is a side view which shows the structure of the 1st reference example of the cloth inspection apparatus of this invention. 上記参考例の布類検査装置のA部を拡大して示す説明図である。It is explanatory drawing which expands and shows the A section of the cloth inspection apparatus of the said reference example. (a)および(b)は、上記参考例の布類検査装置のジャンプ台および受け台の構成を示す平面図および側面図である。(A) And (b) is the top view and side view which show the structure of the jump stand and cradle of the cloth inspection apparatus of the said reference example. 上記参考例の布類検査装置の反射鏡周辺部を拡大して示す説明図である。It is explanatory drawing which expands and shows the reflective mirror periphery part of the cloth inspection apparatus of the said reference example. この発明の布類検査装置の第2参考例の反射鏡周辺部を拡大して示す説明図である。It is explanatory drawing which expands and shows the reflector peripheral part of the 2nd reference example of the cloth inspection apparatus of this invention. (a)は、この発明の布類検査装置の実施例の反射鏡周辺部を拡大して示す説明図、(b)は、その反射鏡に風を吹きつけるブロー機構を示す、(a)中の矢印B方向から見た説明図である。(A) is explanatory drawing which expands and shows the reflective mirror periphery part of one Example of the cloth inspection apparatus of this invention, (b) shows the blow mechanism which blows wind on the reflective mirror, (a) It is explanatory drawing seen from the arrow B inside.

以下、本発明の実施の形態を参考例および実施例によって、図面に基づき詳細に説明する。ここに、図1は、この発明の布類検査装置の第1参考例の構成を示す側面図、図2は、その参考例の布類検査装置のA部を拡大して示す説明図、そして図3(a)および図3(b)は、上記参考例の布類検査装置のジャンプ台および受け台の構成を示す平面図および側面図であり、図中符号1は通常のアイロンローラ、2は通常の折畳み機、3はこの参考例の布類検査装置をそれぞれ示す。 Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings by reference examples and examples. Here, FIG. 1 is a side view showing the configuration of the first reference example of the fabric inspection apparatus of the present invention, FIG. 2 is an explanatory diagram showing an enlarged view of part A of the fabric inspection apparatus of the reference example, and FIGS. 3 (a) and 3 (b) are a plan view and a side view showing the configuration of the jump stand and the cradle of the cloth inspection apparatus according to the reference example, where reference numeral 1 denotes an ordinary iron roller, 2 Is a normal folding machine, and 3 is a cloth inspection apparatus of this reference example.

この参考例の布類検査装置3は、布類洗濯工場等において、アイロンローラ1と折畳み機2との間に配置され、そのアイロンローラ1から搬出されて折畳み機2に搬送される洗濯処理中の布類Fの表面または内部の汚れや破れ等の異常を検出するもので、ここにおける布類検査装置3は、両側に側板を持つ概略直方体の枠状の支持フレーム4と、その支持フレーム4内の図1では左側部分に設けられて、アイロンローラ1から搬出された拡げられた布類Fを受け取って図1では右方へ搬送する送り出しコンベヤ5と、その送り出しコンベヤ5に対しその搬送方向に間隔を空けるように支持フレーム4内の図1では右側部分に設けられて、送り出しコンベヤ5から送り出された拡げられた布類Fを図1では右方へ搬送し、折畳み機2からその前方に突出する搬入コンベヤ2aに引き渡す受け取りコンベヤ6と、拡げられた布類Fを上記送り出しコンベヤ5からその受け取りコンベヤ6へジャンプさせる、ジャンプ手段としてのジャンプ台7および受け台8と、を具えている。 The cloth inspection apparatus 3 according to this reference example is disposed between the ironing roller 1 and the folding machine 2 in a cloth washing factory or the like, and is carried out of the ironing roller 1 and conveyed to the folding machine 2 during the washing process. The cloth inspection apparatus 3 in this embodiment is a frame-like support frame 4 having side plates on both sides, and a support frame 4 for detecting abnormalities such as dirt or tear on the surface or inside of the cloth F. In FIG. 1, a delivery conveyor 5 which is provided on the left side portion and receives the spread fabric F carried out from the iron roller 1 and conveys it to the right in FIG. 1, and its conveyance direction with respect to the delivery conveyor 5. 1 is provided in the right side portion in FIG. 1 in the support frame 4 so as to be spaced apart from each other, and the spread fabric F fed from the delivery conveyor 5 is conveyed to the right in FIG. A receiving conveyor 6 that is handed over to a carry-in conveyor 2a that protrudes to the receiving conveyor 2 and a jumping base 7 and a receiving base 8 as jumping means for jumping the spread fabric F from the feeding conveyor 5 to the receiving conveyor 6. .

ここで、送り出しコンベヤ5および受け取りコンベヤ6は各々、図3(a)の平面図に示すように、互いに幅方向に隙間を空けて多数横並びに配置された幅狭のコンベヤベルト9を有しており、ジャンプ台7は、図2に拡大して示すとともに図3(a),(b)の平面図および側面図に示すように、送り出しコンベヤ5の送り出し側端部(図1では右端部)に突設されている。ここで、ジャンプ台7は、受け取りコンベヤ6の受け取り側端部(図1では左端部)へ向かってコンベヤベルト9の隙間から多数の支持部を突き出した櫛状部7aと、送り出しコンベヤ5の延在方向と直交する水平方向(図1では紙面と直交する方向)へ延在して櫛状部7aの支持部の先端同士を連結する連結部7bとを有している。   Here, as shown in the plan view of FIG. 3A, each of the delivery conveyor 5 and the reception conveyor 6 has narrow conveyor belts 9 arranged side by side with a gap in the width direction. The jump stand 7 is shown in an enlarged view in FIG. 2 and as shown in the plan view and the side view of FIGS. 3A and 3B, the delivery side end of the delivery conveyor 5 (the right end in FIG. 1). Projected to Here, the jump stand 7 includes a comb-like portion 7 a that projects a large number of support portions from the gap of the conveyor belt 9 toward the receiving side end portion (left end portion in FIG. 1) of the receiving conveyor 6, and the extension of the delivery conveyor 5. It has a connecting portion 7b that extends in a horizontal direction orthogonal to the existing direction (a direction orthogonal to the paper surface in FIG. 1) and connects the tips of the support portions of the comb-like portion 7a.

また、受け台8は、これも図2に拡大して示すとともに図3(a),(b)の平面図および側面図に示すように、受け取りコンベヤ6の受け取り側端部(図1では左端部)に突設されている。ここで、受け台8は、送り出しコンベヤ5の送り出し側端部(図1では右端部)へ向かってコンベヤベルト9の隙間から支持部を突き出すとともにその支持部の先端同士を連結部7bと同様の連結部で連結した櫛状部材を有している。そして、ジャンプ台7の先端と受け台8の先端との間には水平方向に隙間Gが設けられるとともに、上下方向にも僅かに高さの差が設けられ、ジャンプ台7の先端は、受け台8の先端よりも僅かに高く位置している。   The cradle 8 is also shown in an enlarged view in FIG. 2 and, as shown in the plan view and side view of FIGS. 3A and 3B, the receiving side end of the receiving conveyor 6 (the left end in FIG. 1). Part). Here, the cradle 8 protrudes the support part from the gap of the conveyor belt 9 toward the delivery side end part (the right end part in FIG. 1) of the delivery conveyor 5, and the tips of the support parts are the same as the connection part 7b. It has the comb-shaped member connected with the connection part. A gap G is provided in the horizontal direction between the tip of the jump base 7 and the tip of the cradle 8, and a slight height difference is also provided in the vertical direction. It is located slightly higher than the tip of the base 8.

さらに、この参考例の布類検査装置3は、上記隙間Gの斜め上方に配置された透過光源としてのLED10と、その隙間Gの斜め下方に送り出しコンベヤ5寄りおよび受け取りコンベヤ6寄りに振り分けて配置された反射光源としての蛍光管11と、支持フレーム4の受け取りコンベヤ6側の側部にブラケット12を介して取り付けられて送り出しコンベヤ5および受け取りコンベヤ6の延在方向と直交する水平方向(図1では紙面と直交する方向)へ延在する、カメラとしての1台または複数台の1次元ビデオカメラ(ラインセンサ)13と、支持フレーム4内の中央部の下部に配置されて1次元ビデオカメラ13と平行に延在する反射鏡14と、を具えており、斜め下向きの1次元ビデオカメラ13の光軸L1は、反射鏡14の斜め上向きの反射面により斜め上向きに屈曲されて蛍光管11の間および隙間Gを通り、透過光源としてのLED10に向けられている。 Furthermore, the cloth inspection apparatus 3 of this reference example is arranged by being distributed near the sending conveyor 5 and the receiving conveyor 6 obliquely below the gap G, and the LED 10 as the transmission light source arranged obliquely above the gap G. A fluorescent tube 11 as a reflected light source, and a horizontal direction perpendicular to the extending direction of the delivery conveyor 5 and the receiving conveyor 6 attached to the side of the support frame 4 on the receiving conveyor 6 side via a bracket 12 (FIG. 1). Then, one or a plurality of one-dimensional video cameras (line sensors) 13 extending in the direction perpendicular to the paper surface, and the one-dimensional video camera 13 disposed at the lower part of the central portion in the support frame 4. And the optical axis L1 of the one-dimensional video camera 13 obliquely downward is obliquely upward of the reflective mirror 14. Is bent obliquely upward passes between and gap G of the fluorescent tube 11 by the reflecting surface of the are directed to LED10 as a transmission source.

さらに、この参考例の布類検査装置3は、送り出しコンベヤ5上にその送り出しコンベヤ5の延在方向と直交する水平方向(図1では紙面と直交する方向)へ延在するように配置されてコンベヤベルト9の隙間から突出する支持部材で支持された暗色部としての黒板15と、拡げられた布類Fをその黒板15上で移動させるためにその黒板15の上流側に突設された櫛状部材16と、その黒板15の斜め上方に送り出しコンベヤ5寄りおよび受け取りコンベヤ6寄りに振り分けて配置された他の反射光源としての蛍光管17と、支持フレーム4の上部にブラケット18を介して取り付けられて送り出しコンベヤ5および受け取りコンベヤ6の延在方向と直交する水平方向(図1では紙面と直交する方向)へ延在する、さらなるカメラとしての1次元ビデオカメラ(ラインセンサ)19と、を具えており、1次元ビデオカメラ19の光軸L2は、蛍光管17の間を通り、黒板15に向けられている。 Furthermore, the cloth inspection apparatus 3 of this reference example is arranged on the delivery conveyor 5 so as to extend in a horizontal direction (direction perpendicular to the paper surface in FIG. 1) perpendicular to the extension direction of the delivery conveyor 5. A blackboard 15 as a dark portion supported by a support member protruding from the gap of the conveyor belt 9 and a comb protruding upstream of the blackboard 15 in order to move the expanded fabric F on the blackboard 15 Attached to the upper portion of the support frame 4 via a bracket 18 and a fluorescent tube 17 as another reflection light source that is arranged near the sending conveyor 5 and the receiving conveyor 6 diagonally above the blackboard 15. As a further camera extending in a horizontal direction orthogonal to the extending direction of the delivery conveyor 5 and the receiving conveyor 6 (direction orthogonal to the paper surface in FIG. 1). The dimension video camera (line sensor) 19, which comprises a light axis L2 of the one-dimensional video camera 19, passes between the fluorescent tube 17 is directed to the board 15.

かかる構成を具えるこの参考例の布類検査装置3にあっては、ジャンプ台7が、送り出しコンベヤ5が搬送している拡げられた布類Fを下から支持して、先端からその拡げられた布類Fをジャンプさせ、そして受け台8が、そのジャンプ台7からジャンプした拡げられた布類Fを受けて受け取りコンベヤ6に引き渡すことで、送り出しコンベヤ5から受け取りコンベヤ6へ、拡げられた布類Fをジャンプさせ、その間、図2に示すように、送り出しコンベヤ5と受け取りコンベヤ6との間の隙間Gをジャンプしている拡げられた布類Fに透過光源としてのLED10から照射されてその布類Fを透過した光と、その隙間Gをジャンプしている拡げられた布類Fに反射光源としての蛍光管11から照射されてその布類Fから反射した光との両方によって、拡げられた布類Fを1次元ビデオカメラ13が撮影してその布類Fの画像を出力する。 In the fabric inspection apparatus 3 of this reference example having such a configuration, the jump stand 7 supports the expanded fabric F conveyed by the delivery conveyor 5 from below and is expanded from the tip. The cloth 8 is caused to jump, and the cradle 8 is expanded from the delivery conveyor 5 to the reception conveyor 6 by receiving the expanded cloth F jumped from the jump pedestal 7 and delivering it to the reception conveyor 6. The cloth F is caused to jump, and during that time, as shown in FIG. 2, the spread cloth F jumping through the gap G between the delivery conveyor 5 and the reception conveyor 6 is irradiated from the LED 10 as a transmission light source. Both the light transmitted through the cloth F and the light reflected from the cloth F irradiated from the fluorescent tube 11 as a reflection light source to the expanded cloth F jumping through the gap G Thus, the spread was cloth F is 1-dimensional video camera 13 outputs the image of the cloth F to shoot.

従って、この参考例の布類検査装置3によれば、送り出しコンベヤ5と受け取りコンベヤ6との間の隙間Gをジャンプしている拡げられた布類FにLED10から照射されてその布類Fを透過した光と、その隙間Gをジャンプしている拡げられた布類Fに蛍光管11から照射されてその布類Fから反射した光との両方によってその布類Fを撮影した1次元ビデオカメラ13が出力する画像をその布類Fの移動方向に繋げて2次元画像とし、その2次元画像に基づき、通常の画像処理装置等によって、拡げられた布類Fの図では下側の表面と内部とを検査することができるので、高い検査能力で、布類Fの内部の汚れや破れ等の異常の他、布類Fと同系色の表面の汚れ等の異常の検出も充分におこなうことができ、しかも、布類Fを透明な台上に通して透過光で検査を行うのではないから、透明な台の汚れや傷つき等によって検査能力が低下するということもないので、その高い検査能力を長期間維持することができる。 Therefore, according to the cloth inspection apparatus 3 of this reference example, the spread cloth F jumping through the gap G between the sending conveyor 5 and the receiving conveyor 6 is irradiated from the LED 10 to the cloth F. A one-dimensional video camera that has photographed the cloth F by both the transmitted light and the light reflected from the cloth F by being irradiated from the fluorescent tube 11 to the spread cloth F jumping through the gap G 13 is connected to the movement direction of the cloth F to form a two-dimensional image. Based on the two-dimensional image, the image of the cloth F expanded by the normal image processing apparatus or the like The inside of the fabric F can be inspected, so that it is possible to detect abnormalities such as stains and tears inside the fabric F as well as abnormalities such as stains on the surface of the same color as the fabric F with high inspection capability. In addition, cloth F can be placed on a transparent table Since there's a do is inspected with transmitted light through, since there is no fact that the inspection ability of a transparent base of the dirt and scratches or the like is reduced, can be maintained for a long time its high inspection capability.

また、この参考例の布類検査装置3によれば、送り出しコンベヤ5上の拡げられた布類Fに反射光源としての蛍光管17から照射されてその布類Fの表面から反射した光によってその布類を撮影して画像を出力する、さらなる1次元ビデオカメラ19を具えており、その1次元ビデオカメラ19が出力する画像をその布類Fの移動方向に繋げて2次元画像とし、その2次元画像に基づき、通常の画像処理装置等によって、拡げられた布類Fの図では上側の表面と内部とを検査することができるので、拡げられた布類Fの両表面の、透過光では透過してしまうような透明に近い汚れ等でも、2台のビデオカメラ13,19がそれぞれ出力する画像に基づき検出できることから、さらに高い検査能力を発揮することができる。 Further, according to the cloth inspection apparatus 3 of this reference example, the cloth F spread on the delivery conveyor 5 is irradiated from the fluorescent tube 17 as a reflection light source and reflected by the light reflected from the surface of the cloth F. A further one-dimensional video camera 19 is provided for photographing the cloth and outputting an image. The image output from the one-dimensional video camera 19 is connected to the movement direction of the cloth F to form a two-dimensional image. Based on the three-dimensional image, the upper surface and the inside of the spread fabric F can be inspected by a normal image processing apparatus or the like. Even near-transparent stains that pass through can be detected on the basis of images output from the two video cameras 13 and 19, respectively, so that even higher inspection capability can be exhibited.

ところでこの参考例の布類検査装置3では、拡げられた布類Fの図では下側の表面と内部とを検査するためには反射鏡14の反射面を斜め上向きにしている必要があることから、そのままでは埃が頻繁に反射鏡14の反射面上に落下して付着することで埃の堆積が早期に生じ、堆積した埃が検査精度に影響を及ぼす可能性がある。そこでこの実施例の布類検査装置3では、図4に拡大して示すように、反射鏡14が、図示例では角パイプ状のベースフレーム20に取り付けられ、そのベースフレーム20の両端部が支持軸21により、図では紙面と直交する方向へ延在する水平軸線周りに回動可能に支持フレーム4に支持され、さらに、そのベースフレーム20の一端部に基部を固定されたレバー22の先端部が、支持フレーム4に後端部を揺動可能に支持されたエアシリンダ23のピストンロッド23aの先端部に連結され、これらベースフレーム20と支持軸21とレバー22とエアシリンダ23とが、埃避け手段としての反射鏡向き変更機構24を構成している。 By the way, in the cloth inspection apparatus 3 of this reference example, in the figure of the expanded cloth F, in order to inspect the lower surface and the inside, the reflecting surface of the reflecting mirror 14 needs to be inclined upward. Therefore, as it is, dust frequently falls on the reflecting surface of the reflecting mirror 14 and adheres to it, so that dust accumulation occurs early, and the accumulated dust may affect the inspection accuracy. Therefore, in the cloth inspection apparatus 3 of this embodiment, as shown in an enlarged view in FIG. 4, the reflecting mirror 14 is attached to the square pipe-shaped base frame 20 in the illustrated example, and both ends of the base frame 20 are supported. The tip of the lever 22 is supported by the support frame 4 so as to be rotatable about a horizontal axis extending in a direction orthogonal to the paper surface by the shaft 21, and the base is fixed to one end of the base frame 20. Are connected to the tip of the piston rod 23a of the air cylinder 23 supported by the support frame 4 so that the rear end thereof is swingable, and the base frame 20, the support shaft 21, the lever 22, and the air cylinder 23 are connected to dust. A reflecting mirror direction changing mechanism 24 as an avoiding means is configured.

この反射鏡向き変更機構24によれば、エアシリンダ23のピストンロッド23aを進退移動させることでベースフレーム20とともに反射鏡14を支持軸21の軸線周りに回動させて、図4中に矢印で示すように、反射鏡14の反射面(ベースフレーム20側と反対の側に向く面)14aの向きを、図中実線で示す斜め上向きと、図中仮想線で示す斜め下向きとの間で変更することができることから、反射鏡14の使用時(布類Fの検査時)はその反射面14aの向きを斜め上向きとする一方、反射鏡14の不使用時(夜間や休業日等の布類Fの非検査時)はその反射面14aの向きを斜め下向きにしておくことで、反射面14aに埃がほとんど落下付着せず、付着した埃も自重で反射面から落下するので、反射面14aへの埃の付着を減少させることができる。   According to this reflecting mirror direction changing mechanism 24, the piston rod 23a of the air cylinder 23 is moved forward and backward to rotate the reflecting mirror 14 together with the base frame 20 around the axis of the support shaft 21, and an arrow in FIG. As shown, the direction of the reflecting surface 14a of the reflecting mirror 14 (the surface facing the side opposite to the base frame 20) is changed between an obliquely upward direction indicated by a solid line in the figure and an obliquely downward direction indicated by a virtual line in the figure. Therefore, when the reflecting mirror 14 is used (when the cloth F is inspected), the direction of the reflecting surface 14a is obliquely upward, while when the reflecting mirror 14 is not used (clothes such as at night or on closed days). When the F is not inspected), the direction of the reflecting surface 14a is set obliquely downward so that almost no dust falls and adheres to the reflecting surface 14a, and the attached dust also falls from the reflecting surface by its own weight. Reduces the adhesion of dust to It can be.

従って、反射鏡向き変更機構24を有するこの参考例の布類検査装置3によれば、拡げられた布類Fの表面または内部の汚れ等の異常をその布類Fの下側から検査するための反射鏡14への埃の堆積を減らすかもしくは実質的になくして、布類Fの検査精度を長期間維持することができる。 Therefore, according to the cloth inspection apparatus 3 of this reference example having the reflecting mirror direction changing mechanism 24, the surface of the expanded cloth F or an abnormality such as dirt on the inside is inspected from the lower side of the cloth F. It is possible to reduce or substantially eliminate dust accumulation on the reflecting mirror 14 and maintain the inspection accuracy of the fabric F for a long time.

図5は、この発明の布類検査装置の第2参考例の反射鏡周辺部を拡大して示す説明図であり、この参考例の布類検査装置は、先の参考例と同様、送り出しコンベヤ5および受け取りコンベヤ6と、それらのコンベヤに設けられたジャンプ台7および受け台8と、それらの間の隙間Gをジャンプする拡げられた布類FをLED10の検査光の布類Fからの透過光および蛍光管1の検査光の布類Fからの反射光で撮影する下側の1次元ビデオカメラ13と、ベースフレーム20を介してフレーム4に支持されて1次元ビデオカメラ13の光軸L1を屈曲させる反射鏡14と、送り出しコンベヤ5上を移動する拡げられた布類Fを蛍光管17の検査光の布類Fからの反射光で撮影する上側の1次元ビデオカメラ19と、を具えており、埃避け手段の構成のみ異なっていることから、以下には埃避け手段について説明し、他の部分の説明は省略する。 Figure 5 is an explanatory view showing an enlarged reflector periphery of the second reference example of cloth inspection apparatus of the present invention, cloth inspection device of this reference example, similarly to the previous Example, feed conveyor 5 and the receiving conveyor 6, the jump table 7 and the receiving table 8 provided on the conveyors, and the spread fabric F that jumps through the gap G between them is transmitted from the fabric F to the inspection light of the LED 10. The lower one-dimensional video camera 13 that captures the light and the reflected light from the cloth F of the inspection light of the fluorescent tube 1 and the optical axis L1 of the one-dimensional video camera 13 supported by the frame 4 via the base frame 20 And a one-dimensional video camera 19 on the upper side for photographing the expanded cloth F moving on the delivery conveyor 5 with the reflected light from the cloth F of the inspection light of the fluorescent tube 17. Of dust prevention means Since differ formed only describes dust avoiding means in the following, description of other parts will be omitted.

すなわちこの参考例の布類検査装置は、図5に拡大して示すように、反射鏡14が、図示例では角パイプ状のベースフレーム20に取り付けられ、そのベースフレーム20の両端部が支持フレーム4に、反射鏡14の向きを調節可能に固定支持されており、そのベースフレーム20の両端部の近傍に位置する支持軸25を介して2個のブラケット26(図では片側のみ示す)の基部が、図では紙面と直交する方向へ延在する水平軸線周りに回動可能に支持フレーム4に支持され、それらのブラケット26の間に、図では紙面と直交する方向へ延在する図示例ではコ字状断面形状のカバー27が配置されて、そのカバー27の両端部がそれらのブラケット26にそれぞれ固定支持され、さらに、ここでは図示しないが先の参考例と同様、それらの一方のブラケット26に基部を固定されたレバー22の先端部が、支持フレーム4に後端部を揺動可能に支持されたエアシリンダ23のピストンロッド23aの先端部に連結され、これら支持軸25とブラケット26とカバー27とレバー22とエアシリンダ23とが、埃避け手段としてのカバー移動機構28を構成している。 That is, in the cloth inspection apparatus of this reference example, as shown in an enlarged view in FIG. 5, the reflecting mirror 14 is attached to a square pipe-shaped base frame 20 in the illustrated example, and both ends of the base frame 20 are supported by the support frame. 4, the base of two brackets 26 (only one side is shown in the figure) is supported by a support shaft 25 located in the vicinity of both ends of the base frame 20 so that the orientation of the reflecting mirror 14 can be adjusted. However, in the drawing, it is supported by the support frame 4 so as to be rotatable around a horizontal axis extending in a direction orthogonal to the paper surface, and between the brackets 26 in the illustrated example extending in a direction orthogonal to the paper surface in the drawing. is arranged cover 27 of U-shaped cross section, both ends of the cover 27 are fixedly supported respectively on their bracket 26, furthermore, in which like the reference example not shown earlier, they The front end of the lever 22 whose base is fixed to one bracket 26 is connected to the front end of the piston rod 23a of the air cylinder 23 supported by the support frame 4 so that the rear end is swingable. The bracket 26, the cover 27, the lever 22, and the air cylinder 23 constitute a cover moving mechanism 28 serving as dust avoiding means.

このカバー移動機構28によれば、エアシリンダ23のピストンロッド23aを進退移動させることでブラケット26とともにカバー27を支持軸25の軸線周りに回動させて、図5中に矢印で示すように、カバー27を、図中仮想線で示す、反射鏡14の反射面(ベースフレーム20側と反対の側に向く面)14aを覆う使用位置と、図中破線で示す、反射鏡14の反射面14aの正面から外れる待機位置との間で揺動させることができることから、反射鏡14の使用時(布類Fの検査時)はカバー27を待機位置に位置させて光軸L1と干渉しないようにする一方、反射鏡14の不使用時(夜間や休業日等の布類Fの非検査時)はカバー27を使用位置に位置させて反射面14aをカバー27で上から覆っておくことで、反射面14aが露出している時間が減り、反射面14aに埃がほとんど落下付着しないので、反射面14aへの埃の付着を減少させることができる。   According to this cover moving mechanism 28, the piston rod 23a of the air cylinder 23 is moved forward and backward to rotate the cover 27 together with the bracket 26 around the axis of the support shaft 25, as shown by arrows in FIG. The cover 27 covers the reflecting surface 14a of the reflecting mirror 14 (surface facing the side opposite to the base frame 20) indicated by the phantom line in the drawing, and the reflecting surface 14a of the reflecting mirror 14 indicated by the broken line in the drawing. Therefore, when using the reflecting mirror 14 (when inspecting the fabric F), the cover 27 is positioned at the standby position so as not to interfere with the optical axis L1. On the other hand, when the reflecting mirror 14 is not used (when the cloth F is not inspected at night or on holidays), the cover 27 is positioned at the use position and the reflecting surface 14a is covered with the cover 27 from above. Reflective surface 14a Out The times are reduced, since the dust on the reflecting surface 14a hardly fall deposition, it is possible to reduce the adhesion of dust to the reflective surface 14a.

従って、カバー移動機構28を有するこの参考例の布類検査装置3によれば、先の参考例と同様、拡げられた布類Fの両表面と内部の異常を検査できるとともに、拡げられた布類Fの表面または内部の汚れ等の異常をその布類Fの下側から検査するための反射鏡14への埃の堆積を減らすかもしくは実質的になくして、布類Fの検査精度を長期間維持することができる。 Therefore, according to the cloth inspection apparatus 3 of this reference example having the cover moving mechanism 28, both the surface and the inside abnormality of the spread cloth F can be inspected and the spread cloth can be inspected as in the previous reference example. The inspection accuracy of the fabric F is increased by reducing or substantially eliminating the accumulation of dust on the reflecting mirror 14 for inspecting the abnormality of the surface or the inside of the class F from the lower side of the fabric F. The period can be maintained.

図6(a)は、この発明の布類検査装置の実施例の反射鏡周辺部を拡大して示す説明図、図6(b)は、その反射鏡に風を吹きつけるブロー機構を示す、(a)中の矢印B方向から見た説明図であり、この実施例の布類検査装置は、先の参考例と同様、送り出しコンベヤ5および受け取りコンベヤ6と、それらのコンベヤに設けられたジャンプ台7および受け台8と、それらの間の隙間Gをジャンプする拡げられた布類FをLED10の検査光の布類Fからの透過光および蛍光管1の検査光の布類Fからの反射光で撮影する下側の1次元ビデオカメラ13と、ベースフレーム20を介してフレーム4に支持されて1次元ビデオカメラ13の光軸L1を屈曲させる反射鏡14と、送り出しコンベヤ5上を移動する拡げられた布類Fを蛍光管17の検査光の布類Fからの反射光で撮影する上側の1次元ビデオカメラ19と、を具えており、埃避け手段の構成のみ異なっていることから、以下には埃避け手段について説明し、他の部分の説明は省略する。 FIG. 6 (a) is an explanatory view showing, in an enlarged manner, the periphery of the reflecting mirror of one embodiment of the cloth inspection apparatus of the present invention, and FIG. 6 (b) shows a blow mechanism for blowing wind on the reflecting mirror. (A) It is explanatory drawing seen from the arrow B direction, The cloth inspection apparatus of this Example was provided in those conveyors and the delivery conveyor 5 and the receiving conveyor 6 similarly to the previous reference example. The spread cloth F that jumps through the gap G between the jump table 7 and the receiving table 8 is transmitted from the cloth F of the inspection light of the LED 10 and from the cloth F of the inspection light of the fluorescent tube 1. The lower one-dimensional video camera 13 for photographing with reflected light, the reflecting mirror 14 that is supported by the frame 4 via the base frame 20 and bends the optical axis L1 of the one-dimensional video camera 13, and moves on the delivery conveyor 5 Fluorescent tube 1 with expanded fabric F The upper one-dimensional video camera 19 that captures the reflected light from the cloth F of the inspection light is different, and only the configuration of the dust avoiding means is different. Description of other parts is omitted.

すなわちこの実施例の布類検査装置は、図6(a),(b)に拡大して示すように、反射鏡14が、図示例では角パイプ状のベースフレーム20に取り付けられ、そのベースフレーム20の両端部が支持フレーム4に、反射鏡14の向きを調節可能に固定支持されており、反射鏡14の近傍の、光軸L1と干渉しない位置に、反射鏡14に沿って中空管であるブローパイプ29が配置され、そのブローパイプ29が2個のブラケット30を介して長手方向へ移動可能にベースフレーム20に支持され、ブローパイプ29の長手方向複数箇所に反射鏡14へ向けて吹き出し口29aが設けられ、ブローパイプ29の一端部(図6(b)では右端部)が、もう一つのブラケット31を介してこれもベースフレーム20に支持されたエアシリンダ32のピストンロッド32aに結合され、ブローパイプ29の図示しない他端部が、図示しないエアホースを介して加圧エア源に接続され、これらブローパイプ29とブラケット30,31とエアシリンダ32とが、埃避け手段としてのブロー機構33を構成し、特にブラケット30,31とエアシリンダ32とが、吹き出し口29aを移動させる移動機構34を構成している。   That is, in the cloth inspection apparatus of this embodiment, as shown in FIGS. 6A and 6B in an enlarged manner, the reflecting mirror 14 is attached to a square pipe-shaped base frame 20 in the illustrated example. Both ends of 20 are fixedly supported by the support frame 4 so that the orientation of the reflecting mirror 14 can be adjusted, and the hollow tube is formed along the reflecting mirror 14 at a position near the reflecting mirror 14 so as not to interfere with the optical axis L1. The blow pipe 29 is supported by the base frame 20 so as to be movable in the longitudinal direction via the two brackets 30, and directed to the reflecting mirror 14 at a plurality of longitudinal positions of the blow pipe 29. The air cylinder 3 is provided with a blowout port 29a, and one end portion (the right end portion in FIG. 6B) of the blow pipe 29 is supported by the base frame 20 via another bracket 31. The other end (not shown) of the blow pipe 29 is connected to a pressurized air source via an air hose (not shown), and the blow pipe 29, the brackets 30 and 31, and the air cylinder 32 are connected to the piston rod 32a. A blow mechanism 33 as an avoiding means is configured, and in particular, the brackets 30 and 31 and the air cylinder 32 constitute a moving mechanism 34 that moves the blowout port 29a.

このブロー機構33によれば、上記加圧エア源からブローパイプ29内に供給された加圧エアを、ブローパイプ29の長手方向の複数箇所に設けられた吹き出し口29aから反射鏡14に向けて吹き出して、その加圧エアによる風Wを反射鏡14の反射面14aに連続的に、またはある程度の間隔を置いて間欠的に吹きつけることができることから、反射面14aに埃がほとんど落下付着せず、付着した埃も風の力で反射面14aから吹き落とされるので、反射面14aへの埃の付着を減少させることができ、また、その移動機構34によれば、エアシリンダ32のピストンロッド32aを図6(b)中矢印で示すように進退移動させることでブローパイプ29の吹き出し口29aを図6(b)中矢印で示すように往復移動させて、吹き出し口29aから反射面14aに吹きつける風Wを反射鏡14に沿って移動させることができるので、ブロー機構33の埃の吹き落とし効果を高めることができる。   According to the blow mechanism 33, the pressurized air supplied from the pressurized air source into the blow pipe 29 is directed toward the reflecting mirror 14 from the outlets 29 a provided at a plurality of locations in the longitudinal direction of the blow pipe 29. Since the blown-out air W can be blown continuously or intermittently at a certain interval on the reflecting surface 14a of the reflecting mirror 14, the dust is almost deposited on the reflecting surface 14a. In addition, the adhering dust is blown off from the reflecting surface 14a by the force of the wind, so that the adhesion of dust to the reflecting surface 14a can be reduced, and according to the moving mechanism 34, the piston rod of the air cylinder 32 can be reduced. 32a is moved forward and backward as indicated by an arrow in FIG. 6B, whereby the outlet 29a of the blow pipe 29 is reciprocated as indicated by an arrow in FIG. Since wind W blown to the reflecting surface 14a from 29a can be moved along the reflecting mirror 14, it is possible to increase the blow down effect of dust blow mechanism 33.

従って、移動機構34を持つブロー機構33を有するこの実施例の布類検査装置3によれば、先の参考例と同様、拡げられた布類Fの両表面と内部の異常を検査できるとともに、拡げられた布類Fの表面または内部の汚れ等の異常をその布類Fの下側から検査するための反射鏡14への埃の堆積を減らすかもしくは実質的になくして、布類Fの検査精度を長期間維持することができる。 Therefore, according to the cloth inspection apparatus 3 of this embodiment having the blow mechanism 33 having the moving mechanism 34, both the front surface and the inside abnormality of the expanded cloth F can be inspected as in the previous reference example. In order to reduce or substantially eliminate the accumulation of dust on the reflector 14 for inspecting the surface of the spread fabric F, such as dirt on the surface or inside, from below the fabric F, the fabric F Inspection accuracy can be maintained for a long time.

以上、図示例に基づき説明したが、この発明は上述の例に限定されるものでなく特許請求の範囲の記載範囲内で適宜変更し得るものであり、例えば上記実施例ではブロー機構33を単独で設けたが、このブロー機構33を先の第1参考例における反射鏡向き変更機構24または第2参考例におけるカバー移動機構28と組み合わせてもよいAlthough the present invention has been described based on the illustrated example, the present invention is not limited to the above-described example, and can be appropriately changed within the scope of the claims. For example, in the above-described embodiment , the blow mechanism 33 is used alone. However, the blow mechanism 33 may be combined with the reflecting mirror direction changing mechanism 24 in the first reference example or the cover moving mechanism 28 in the second reference example.

さらに、上記各実施例では送り出しコンベヤ5と受け取りコンベヤ6との間の隙間Gを布類Fがジャンプして移動しているが、送り出しコンベヤ5と受け取りコンベヤ6との間の隙間Gに透明な板が渡され、その透明な板上を移動する布類Fを、反射鏡14を介して下側からビデオカメラ13が撮影するようにしてもよい。また、各ビデオカメラ13,19は、1次元ビデオカメラでなく2次元ビデオカメラとしてもよく、検査光の光源も、LEDに代えて蛍光管とし、あるいは蛍光管に代えてLEDとしてもよく、さらにはLEDや蛍光管以外の種類のものとしてもよい。   Further, in each of the above embodiments, the cloth F jumps and moves in the gap G between the delivery conveyor 5 and the reception conveyor 6. The video camera 13 may take a picture of the cloth F which is passed over the transparent board and passes through the reflecting mirror 14 from the lower side. Each video camera 13, 19 may be a two-dimensional video camera instead of a one-dimensional video camera, and the light source of the inspection light may be a fluorescent tube instead of an LED, or an LED instead of a fluorescent tube. May be of a type other than LEDs or fluorescent tubes.

かくしてこの発明の布類検査装置によれば、拡げられた布類の表面または内部の汚れ等の異常をその布類の下側から検査するための反射鏡への埃の堆積を減らすかもしくは実質的になくして、布類の検査精度を長期間維持することができる。   Thus, according to the cloth inspection apparatus of the present invention, the accumulation of dust on the reflecting mirror for inspecting abnormalities such as the surface of the spread cloth or dirt inside the cloth from the lower side of the cloth is reduced or substantially reduced. Therefore, the inspection accuracy of the cloth can be maintained for a long time.

1 アイロンローラ
2 折畳み機
2a 搬入コンベヤ
3 布類検査装置
4 支持フレーム
5 送り出しコンベヤ
6 受け取りコンベヤ
7 ジャンプ台
7a 櫛状部
7b 連結部
8 受け台
9 コンベヤベルト
10 LED
11,17 蛍光管
12,18,26,30,31 ブラケット
13,19 1次元ビデオカメラ
14 反射鏡
14a 反射面
15 黒板
16 櫛状部材
20 ベースフレーム
21,25 支持軸
22 レバー
23,32 エアシリンダ
23a,32a ピストンロッド
24 反射鏡向き変更機構
27 カバー
28 カバー移動機構
29 ブローパイプ
29a 吹き出し口
33 ブロー機構
34 移動機構
L1,L2 光軸
W 風
DESCRIPTION OF SYMBOLS 1 Iron roller 2 Folding machine 2a Carry-in conveyor 3 Cloth inspection apparatus 4 Support frame 5 Sending conveyor 6 Receiving conveyor 7 Jump stand 7a Comb-like part 7b Connecting part 8 Receptacle 9 Conveyor belt 10 LED
DESCRIPTION OF SYMBOLS 11, 17 Fluorescent tube 12, 18, 26, 30, 31 Bracket 13, 19 One-dimensional video camera 14 Reflector 14a Reflecting surface 15 Blackboard 16 Comb-shaped member 20 Base frame 21, 25 Support shaft 22 Lever 23, 32 Air cylinder 23a , 32a Piston rod 24 Reflector direction changing mechanism 27 Cover 28 Cover moving mechanism 29 Blow pipe 29a Outlet 33 Blow mechanism 34 Moving mechanism L1, L2 Optical axis W Wind

Claims (3)

拡げられた布類の表面または内部の汚れ等の異常を少なくとも前記布類の下側から検査する布類検査装置において、
前記布類をそれぞれ搬送する送り出しコンベヤおよび受け取りコンベヤと、
前記送り出しコンベヤと前記受け取りコンベヤとの間の隙間を移動している前記布類に光源から照射されてその布類を透過した検査光と、その布類から反射した検査光とのうち、少なくともその布類を透過した検査光によって前記布類を撮影して画像を出力するカメラと、
前記送り出しコンベヤと前記受け取りコンベヤとの間の隙間を移動している前記布類の下方に位置し、前記隙間に沿って延在してその布類と前記カメラとの間の光路を屈曲させる反射鏡と、
前記反射鏡の反射面への埃の付着を減少させる埃避け手段と、
を具え
前記埃避け手段は、前記布類と前記カメラとの間の光路と干渉しない固定位置で前記反射鏡に沿って延在してその反射鏡の反射面に連続的または間欠的に風を吹きつけるブロー機構を有し、
前記ブロー機構は、そのブロー機構に沿って風の吹き出し口を移動させる移動機構を有することを特徴とする布類検査装置。
In a cloth inspection device for inspecting abnormalities such as dirt on the surface or inside of the spread cloth at least from the lower side of the cloth,
A delivery conveyor and a reception conveyor for respectively conveying the fabrics ;
At least the inspection light transmitted from the light source to the cloth moving through the gap between the sending conveyor and the receiving conveyor and transmitted through the cloth, and the inspection light reflected from the cloth. A camera that shoots the cloth with the inspection light transmitted through the cloth and outputs an image;
Reflection located below the fabric moving through the gap between the delivery conveyor and the receiving conveyor and extending along the gap to bend the optical path between the fabric and the camera With a mirror,
Dust avoiding means for reducing adhesion of dust to the reflecting surface of the reflecting mirror;
The equipped,
The dust avoiding means extends along the reflecting mirror at a fixed position that does not interfere with the optical path between the cloth and the camera, and blows wind continuously or intermittently on the reflecting surface of the reflecting mirror. Has a blow mechanism,
The cloth inspection apparatus according to claim 1, wherein the blow mechanism includes a moving mechanism that moves the air blowing port along the blow mechanism .
前記埃避け手段は、前記反射鏡の反射面の向きを、斜め上向きを含む上向きと真横もしくは、斜め下向きを含む下向きとの間で変更する反射鏡向き変更機構を有することを特徴とする、請求項1記載の布類検査装置。 It said dust away means, the orientation of the reflecting surface of the reflector, and having the upward including obliquely upward, sideways or the reflector orientation changing mechanism for changing between a downward including obliquely downward, The cloth inspection apparatus according to claim 1. 前記埃避け手段は、前記反射鏡の反射面を覆う使用位置と、前記反射鏡の反射面から外れる待機位置との間でカバーを移動させるカバー移動機構を有することを特徴とする、請求項1または2記載の布類検査装置。   2. The dust avoiding means includes a cover moving mechanism that moves a cover between a use position that covers the reflecting surface of the reflecting mirror and a standby position that is removed from the reflecting surface of the reflecting mirror. Or the cloth inspection apparatus of 2.
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