JPH09210657A - Method and apparatus for evaluating uneven pattern of outer wall material - Google Patents
Method and apparatus for evaluating uneven pattern of outer wall materialInfo
- Publication number
- JPH09210657A JPH09210657A JP1892396A JP1892396A JPH09210657A JP H09210657 A JPH09210657 A JP H09210657A JP 1892396 A JP1892396 A JP 1892396A JP 1892396 A JP1892396 A JP 1892396A JP H09210657 A JPH09210657 A JP H09210657A
- Authority
- JP
- Japan
- Prior art keywords
- wall material
- height
- uneven pattern
- histogram
- measured
- 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.)
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Landscapes
- Length Measuring Devices By Optical Means (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、住宅用外壁材とし
て使用される表面に凹凸模様を有する外壁材等の板材の
凹凸模様評価方法及びその装置に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method and apparatus for evaluating an uneven pattern of a plate material such as an outer wall material having an uneven pattern on the surface used as an outer wall material for a house.
【０００２】[0002]
【従来の技術】表面に凹凸模様を有する外壁材は、表面
に凹凸模様が形成されたローラを外壁材の被加工面に押
し付けると共に被加工面に沿って転動して、ローラの凹
凸模様を被加工面に転写することにより製造される。図
８は、表面にスタッコ模様が形成された外壁材１の一部
断面図である。2. Description of the Related Art An outer wall material having an uneven pattern on a surface presses a roller having an uneven pattern on the surface to be processed of the outer wall material and rolls along the surface to be processed so that the roller has an uneven pattern. It is manufactured by transferring to the surface to be processed. FIG. 8 is a partial cross-sectional view of the outer wall material 1 having a stucco pattern formed on its surface.
【０００３】このように製造された外壁材は、ローラの
プレス圧等の加工条件によって凹凸模様の深さが変わ
り、この深さの変化によって品質（表面意匠性）にバラ
ツキが生じる。そこで、従来では、前記品質を評価する
方法として、作業者の目視による抜き取り検査が行われ
ている。In the outer wall material manufactured in this way, the depth of the concavo-convex pattern changes depending on the processing conditions such as the pressing pressure of the roller, and the change in this depth causes variations in quality (surface designability). Therefore, conventionally, as a method of evaluating the quality, a sampling inspection is visually conducted by an operator.
【０００４】[0004]
【発明が解決しようとする課題】しかしながら、従来の
外壁材の凹凸模様評価方法は、作業者による目視検査な
ので定量的に評価を行うことができず、また、作業者に
よって良不良の評価にバラツキが生じるので、品質の安
定した外壁材を提供することができないという欠点があ
る。However, the conventional method for evaluating the uneven pattern of the outer wall material cannot perform a quantitative evaluation because it is a visual inspection by an operator, and the evaluation of good or bad by the operator varies. Therefore, there is a drawback that it is not possible to provide an outer wall material with stable quality.
【０００５】本発明はこのような事情に鑑みてなされた
もので、外壁材の凹凸模様の評価に於いて、定量的な評
価を可能とし、かつ自動化することで品質の安定した外
壁材を提供することができる外壁材の凹凸模様評価方法
及びその装置を提供することを目的とする。The present invention has been made in view of the above circumstances and provides an outer wall material having stable quality by allowing quantitative evaluation in evaluating the uneven pattern of the outer wall material and automating the evaluation. It is an object of the present invention to provide a method and apparatus for evaluating uneven patterns of an outer wall material that can be used.
【０００６】[0006]
【課題を解決する為の手段】本発明は、前記目的を達成
する為に、表面に凹凸模様が成形された外壁材の凹凸模
様評価方法に於いて、前記外壁材の表面の凹凸模様形状
の高さ変位を計測し、前記計測された高さ変位に基づい
て前記凹凸模様形状の断面曲線を計測し、得られた断面
曲線に於いて、各隣接する極大点と極小点の高さの差を
算出し、前記算出された高さの差のヒストグラムを作成
し、前記作成されたヒストグラムと、良品と評価する基
準のヒストグラムとを比較して外壁材の凹凸模様形状の
良不良を評価することを特徴とする。In order to achieve the above-mentioned object, the present invention provides a method for evaluating an uneven surface pattern of an outer wall material, wherein an uneven pattern is formed on the surface of the outer wall material. The height displacement is measured, and the sectional curve of the uneven pattern shape is measured based on the measured height displacement, and in the obtained sectional curve, the difference in height between each adjacent maximum point and minimum point. To calculate a histogram of the calculated height difference, and compare the created histogram with a reference histogram for evaluating a non-defective product to evaluate whether the unevenness shape of the outer wall material is good or bad. Is characterized by.
【０００７】本発明によれば、先ず、評価対象外壁材の
凹凸模様形状の高さ変位を変位計測手段によって計測す
る。そして、変位計測手段から出力された形状データに
基づいて、外壁材の凹凸模様の断面曲線を計測する。そ
して、得られた断面曲線上に於いて、各隣接する極大・
極小点の高さの差を演算手段によって算出する。According to the present invention, first, the height displacement of the uneven pattern of the outer wall material to be evaluated is measured by the displacement measuring means. Then, based on the shape data output from the displacement measuring means, the sectional curve of the uneven pattern of the outer wall material is measured. Then, on the obtained sectional curve, each adjacent maximum
The difference in height of the minimum points is calculated by the calculating means.
【０００８】そして、演算手段で算出された高さの差の
ヒストグラムを評価手段によって作成すると共に、この
ヒストグラムと良品と評価する基準のヒストグラムとを
比較して外壁材の凹凸模様形状の良不良を評価手段によ
って評価する。これにより、本発明では、外壁材の凹凸
模様の評価を定量的に行うことが可能となり、且つ、自
動的に評価することで品質の安定した外壁材を提供する
ことができる。Then, a histogram of the height difference calculated by the calculating means is created by the evaluating means, and this histogram is compared with a reference histogram to be evaluated as a non-defective product to determine whether the uneven shape of the outer wall material is good or bad. Evaluate by evaluation means. As a result, in the present invention, it is possible to quantitatively evaluate the uneven pattern of the outer wall material, and it is possible to provide the outer wall material with stable quality by performing the evaluation automatically.
【０００９】[0009]
【発明の実施の形態】以下添付図面に従って本発明に係
る外壁材の凹凸模様評価方法及びその装置の好ましい実
施の形態について詳説する。図１は、本発明の実施の形
態に係る外壁材の凹凸模様評価装置の全体図である。同
図に示す凹凸模様評価装置は、レーザー変位計１０、処
理装置１２、及びモニタＴＶ１４等を有している。BEST MODE FOR CARRYING OUT THE INVENTION Preferred embodiments of an outer wall material unevenness pattern evaluation method and apparatus according to the present invention will be described in detail below with reference to the accompanying drawings. FIG. 1 is an overall view of an uneven pattern evaluation device for an outer wall material according to an embodiment of the present invention. The concavo-convex pattern evaluation device shown in the figure includes a laser displacement meter 10, a processing device 12, a monitor TV 14, and the like.
【００１０】前記レーザー変位計１０は、外壁材１６の
表面１６Ａに形成された凹凸模様の高さ変位を非接触で
計測するものである。このレーザー変位計１０は、ベー
ス１８の上方に設置されると共にベース１８に対して平
行にスライド移動自在に設けられ、図示しない駆動装置
によって平面的に移動されるようになっている。前記ベ
ース１８上には、製造直後の外壁材１６が載置される。
従って、前記レーザー変位計１０を、例えば前記外壁材
１６の幅方向に対してスライド移動させれば、外壁材１
６の幅方向における１ライン上の凹凸模様の高さ変位が
レーザー変位計１０によって計測される。また、レーザ
ー変位計１０の移動方向を適宜変えることによって、多
数のライン上の凹凸模様の高さ変位を計測することも可
能である。レーザー変位計１０で計測された形状データ
は、前記処理装置１２に出力される。The laser displacement meter 10 measures the height displacement of the uneven pattern formed on the surface 16A of the outer wall member 16 in a non-contact manner. The laser displacement meter 10 is installed above the base 18 and is provided so as to be slidable in parallel with the base 18, and is moved in a plane by a driving device (not shown). On the base 18, the outer wall material 16 immediately after manufacturing is placed.
Therefore, if the laser displacement meter 10 is slid in the width direction of the outer wall material 16, for example, the outer wall material 1
The height displacement of the uneven pattern on one line in the width direction of 6 is measured by the laser displacement meter 10. Further, by appropriately changing the moving direction of the laser displacement meter 10, it is possible to measure the height displacement of the uneven pattern on many lines. The shape data measured by the laser displacement meter 10 is output to the processing device 12.
【００１１】処理装置１２は図２に示すように、断面曲
線データ保存部２０、ノイズ除去部２２、演算部２４、
及び評価部２６から構成される。次に、前記の如く構成
された外壁材の凹凸模様評装置による評価方法について
図３に示すフローチャートを参照しながら説明する。先
ず、レーザー変位計１０を駆動して（Ｓ１００）、外壁
材１６の幅方向における１ライン上の凹凸模様の高さ変
位を計測し、この計測した形状データを前記処理装置１
２の断面曲線データ保存部２０に出力する（Ｓ１１
０）。As shown in FIG. 2, the processor 12 includes a section curve data storage section 20, a noise removal section 22, a calculation section 24,
And an evaluation unit 26. Next, an evaluation method of the uneven pattern evaluation device for the outer wall material configured as described above will be described with reference to the flowchart shown in FIG. First, the laser displacement meter 10 is driven (S100) to measure the height displacement of the uneven pattern on one line in the width direction of the outer wall material 16, and the measured shape data is used as the processing device 1
2 is output to the sectional curve data storage unit 20 (S11).
0).
【００１２】この時、図４に示す形状データが断面曲線
データ保存部２０に格納されたとする。図４に示すグラ
フの縦軸は、凹凸模様の（峯）高さ（１目盛り０．２ｍ
ｍ）を示し、横軸は外壁材１６の幅方向位置（１目盛り
１０ｍｍ）を示している。また、レーザー変位計１０に
よるサンプリング間隔は０．１ｍｍである。同図によれ
ば、高さの高い部分が意匠的に大きな柄と認識され、高
さの低い部分が小さな柄と認識される。At this time, it is assumed that the shape data shown in FIG. 4 is stored in the section curve data storage unit 20. The vertical axis of the graph shown in FIG. 4 is the (mine) height of uneven pattern (0.2 m per scale)
m), and the horizontal axis represents the widthwise position of the outer wall material 16 (1 scale 10 mm). The sampling interval by the laser displacement meter 10 is 0.1 mm. According to the figure, a portion having a high height is recognized as a large design, and a portion having a low height is recognized as a small pattern.
【００１３】図４に示す形状データが前記断面曲線デー
タ保存部２０に格納されると、断面曲線データ保存部２
０は、この形状データに基づいて外壁材１６の凹凸模様
の極大・極小点Ｐ１、Ｐ２、Ｐ３、Ｐ４、Ｐ５、Ｐ６…
を検出し、これらの極大・極小点Ｐ１〜Ｐ６…を図５に
示すように座標処理する（Ｓ１２０）。次に、前記極大
・極小点Ｐ１〜Ｐ６…に含まれるノイズ、例えば外壁材
１６の材質の粗面で現れるノイズや電気等のノイズを、
ノイズ除去部２２によって除去する（Ｓ１３０）。これ
により、図５に示した変曲点からＰ４、Ｐ５の変曲点が
除去されて凹凸模様のみの変曲点が図６に示すように残
存される。When the shape data shown in FIG. 4 is stored in the section curve data storage section 20, the section curve data storage section 2 is stored.
0 is the maximum / minimum point P1, P2, P3, P4, P5, P6 ... of the uneven pattern of the outer wall material 16 based on this shape data.
Is detected, and the maximum / minimum points P1 to P6 ... Are coordinate-processed as shown in FIG. 5 (S120). Next, noise included in the maximum / minimum points P1 to P6 ..., for example, noise appearing on a rough surface of the material of the outer wall material 16 or noise such as electricity is
The noise removing unit 22 removes the noise (S130). As a result, the inflection points P4 and P5 are removed from the inflection points shown in FIG. 5, and the inflection points having only the concavo-convex pattern remain as shown in FIG.
【００１４】次に、前記残存した極大・極小点Ｐ１、Ｐ
２、Ｐ３、Ｐ６…から隣接する極大・極小点の高さのピ
ーク差（｜（Ｐi ＋1 ）−Ｐi ｜）を、演算部２４によ
って算出する（Ｓ１４０）。次いで、演算部２４で算出
された前記極大・極小点の高さの差のヒストグラムを、
評価部２６によって作成する（Ｓ１５０）。図７に示す
太線のヒストグラムＡが検査終了した外壁材１６のヒス
トグラムであり、このヒストグラムＡと、良品と評価す
る基準のヒストグラムＢ（細線で示すヒストグラム）と
を、前記評価部２６で比較して外壁材の凹凸模様の良不
良を評価する（Ｓ１６０）。Next, the remaining maximum / minimum points P1 and P
2, P3, P6 ... peak difference of height of adjacent local maximum and minimum points from (| (P i + 1) -P i |) , and calculates the arithmetic unit 24 (S140). Next, a histogram of the height differences between the maximum and minimum points calculated by the calculation unit 24 is
It is created by the evaluation unit 26 (S150). The thick histogram A shown in FIG. 7 is the histogram of the outer wall material 16 that has been inspected. The quality of the uneven pattern of the outer wall material is evaluated (S160).
【００１５】前記評価方法は図７に示すように、凹凸模
様の品質に影響する評価区間をヒストグラム上で予め定
めておき、この評価区間内における分布の差が所定の閾
値を超えた場合に、その外壁材の凹凸模様が不良である
と評価する。前記評価区間はヒストグラムの略中央部で
ある。前記評価結果は、図１に示したモニタＴＶ１４に
表示される。In the evaluation method, as shown in FIG. 7, an evaluation section that affects the quality of the uneven pattern is predetermined on the histogram, and when the distribution difference in this evaluation section exceeds a predetermined threshold, It is evaluated that the uneven pattern of the outer wall material is defective. The evaluation section is approximately the center of the histogram. The evaluation result is displayed on the monitor TV 14 shown in FIG.
【００１６】このように、本実施の形態は、従来作業者
による目視検査で行っていた凹凸模様の定量的な評価が
可能となる。また、自動評価において、所定の閾値を定
めて良不良の評価を行うようにしたので、品質の安定し
た外壁材１６を提供することができる。尚、前記凹凸模
様の自動評価で得られた情報を、凹凸模様のプレス成形
工程にフィードバックして、プレス圧等を制御するよう
にすれば、凹凸模様の均一な外壁材を連続成形できるの
で、外壁材の歩留りを向上させることもできる。As described above, according to the present embodiment, it is possible to quantitatively evaluate the uneven pattern, which was conventionally performed by the visual inspection by the operator. Moreover, in the automatic evaluation, since the quality of the outer wall material 16 is stable because a predetermined threshold value is set and the quality is evaluated. The information obtained by the automatic evaluation of the uneven pattern is fed back to the press forming step of the uneven pattern so that the press pressure and the like can be controlled, so that the uniform outer wall material with the uneven pattern can be continuously formed. It is also possible to improve the yield of the outer wall material.
【００１７】また、本実施の形態では、外壁材１６の材
質の粗面で現れるノイズや電気等のノイズを、ノイズ除
去部２２によって除去するようにしたが、必ずしも除去
する必要はなく、変位計により得られた断面曲線データ
から得られる全ての極大・極小点を演算部２４で処理す
るようにしても良い。表面粗さ測定で用いられているガ
ウシアンフイルター等のフイルタリング処理や移動平均
処理により評価に必要な成分を選択的に抽出すること
で、評価の精度を向上させることも可能である。Further, in the present embodiment, noise appearing on the rough surface of the material of the outer wall material 16 and noise such as electricity are removed by the noise removing section 22, but it is not always necessary to remove it, and the displacement meter is not always necessary. The computing unit 24 may process all maximum and minimum points obtained from the cross-section curve data obtained by. It is also possible to improve the accuracy of evaluation by selectively extracting the components required for evaluation by a filtering process such as a Gaussian filter used in the surface roughness measurement or a moving average process.
【００１８】[0018]
【発明の効果】以上説明したように本発明に係る外壁材
の凹凸模様評価方法及びその装置によれば、外壁材の凹
凸模様の評価を定量化することができるので、自動的な
評価が可能となり、また、自動評価において、所定の閾
値を定めて良不良の評価を行うようにしたので品質の安
定した外壁材を提供することができる。As described above, according to the method and apparatus for evaluating the uneven pattern of the outer wall material according to the present invention, the evaluation of the uneven pattern of the outer wall material can be quantified, so that automatic evaluation is possible. In addition, in the automatic evaluation, the quality of the outer wall material is stable because a predetermined threshold value is set and the quality is evaluated.
【図１】本発明の実施の形態に係る外壁材の凹凸模様評
価装置の全体図FIG. 1 is an overall view of an uneven pattern evaluation device for an outer wall material according to an embodiment of the present invention.
【図２】凹凸模様評価装置に適用された処理装置のブロ
ック図FIG. 2 is a block diagram of a processing device applied to an uneven pattern evaluation device.
【図３】評価対象外壁材の凹凸模様形状データを示すグ
ラフFIG. 3 is a graph showing uneven pattern shape data of the outer wall material to be evaluated.
【図４】本発明の実施の形態に係る外壁材の凹凸模様評
価方法のフローチャートFIG. 4 is a flowchart of an uneven pattern evaluation method for an outer wall material according to an embodiment of the present invention.
【図５】外壁材凹凸模様の変曲点を示す図FIG. 5 is a view showing inflection points of an uneven pattern of an outer wall material.
【図６】ノイズ除去された外壁材凹凸模様の変曲点を示
す図FIG. 6 is a diagram showing inflection points of an outer wall material uneven pattern from which noise has been removed.
【図７】良品ヒストグラムに対する実測ヒストグラムの
比較説明図FIG. 7 is an explanatory diagram for comparing a measured histogram with a non-defective histogram.
【図８】外壁材に形成されたスタッコ模様の断面図FIG. 8 is a cross-sectional view of a stucco pattern formed on the outer wall material.
１０…レーザー変位計 １２…処理装置 １４…モニタＴＶ １６…外壁材 ２０…断面曲線データ保存部 ２２…ノイズ除去部 ２４…演算部 ２６…評価部 10 ... Laser displacement meter 12 ... Processing device 14 ... Monitor TV 16 ... Outer wall material 20 ... Section curve data storage unit 22 ... Noise removal unit 24 ... Calculation unit 26 ... Evaluation unit
Claims (2)
模様評価方法に於いて、 前記外壁材の表面の凹凸模様形状の高さ変位を計測し、 前記計測された高さ変位に基づいて前記凹凸模様形状の
断面曲線を計測し、 得られた断面曲線に於いて、各隣接する極大点と極小点
の高さの差を算出し、 前記算出された高さの差のヒストグラムを作成し、 前記作成されたヒストグラムと、良品と評価する基準の
ヒストグラムとを比較して外壁材の凹凸模様形状の良不
良を評価することを特徴とする外壁材の凹凸模様評価方
法。1. A method for evaluating an uneven pattern of an outer wall material having an uneven pattern formed on a surface thereof, wherein a height displacement of the uneven pattern shape on the surface of the outer wall material is measured, and based on the measured height displacement. Measure the cross-section curve of the uneven pattern shape, calculate the height difference between each adjacent maximum point and minimum point in the obtained cross-section curve, and create a histogram of the calculated height difference. Then, the unevenness pattern evaluation method for an outer wall material is characterized by comparing the created histogram with a histogram that is a standard for evaluating a non-defective product to evaluate whether the unevenness shape of the outer wall material is good or bad.
模様評価装置に於いて、 前記外壁材の表面の凹凸模様形状の高さ変位を計測し、
この計測した形状データを出力する変位計測手段と、 前記変位計測手段から出力された形状データに基づい
て、前記外壁材の凹凸模様形状の極大・極小点を検出す
る変曲点検出手段と、 前記変曲点検出手段で検出された、各隣接する極大・極
小点の高さの差を算出する演算手段と、 前記演算手段で算出された高さの差のヒストグラムを作
成し、該ヒストグラムと、良品と評価する基準のヒスト
グラムとを比較して外壁材の凹凸模様形状の良不良を評
価する評価手段と、 を備えたことを特徴とする外壁材の凹凸模様評価装置。2. An unevenness pattern evaluation device for an outer wall material having an unevenness pattern formed on a surface thereof, wherein height displacement of the unevenness shape of the surface of the outer wall material is measured,
Displacement measuring means for outputting the measured shape data, based on the shape data output from the displacement measuring means, inflection point detecting means for detecting the maximum and minimum points of the uneven pattern shape of the outer wall material, Detected by the inflection point detection means, calculating means for calculating the difference in height between adjacent maximum / minimum points, and creating a histogram of the difference in height calculated by the calculating means, and the histogram, An uneven wall pattern evaluation device for an outer wall material, comprising: an evaluation means for evaluating whether the uneven shape of the outer wall material is good or defective by comparing it with a standard histogram for evaluation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1892396A JPH09210657A (en) | 1996-02-05 | 1996-02-05 | Method and apparatus for evaluating uneven pattern of outer wall material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1892396A JPH09210657A (en) | 1996-02-05 | 1996-02-05 | Method and apparatus for evaluating uneven pattern of outer wall material |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH09210657A true JPH09210657A (en) | 1997-08-12 |
Family
ID=11985150
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1892396A Pending JPH09210657A (en) | 1996-02-05 | 1996-02-05 | Method and apparatus for evaluating uneven pattern of outer wall material |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH09210657A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010519559A (en) * | 2007-02-27 | 2010-06-03 | コーニング インコーポレイテッド | Method for quantifying defects in transparent substrates |
| JP2014025837A (en) * | 2012-07-27 | 2014-02-06 | Jfe Steel Corp | Processed state evaluating method and processed state evaluating apparatus for steel plates |
| KR20210033291A (en) * | 2019-09-18 | 2021-03-26 | 주식회사 옵트론텍 | Apparatus for inspecting optical surface |
| KR102413483B1 (en) * | 2021-07-28 | 2022-06-28 | 주식회사 프로시스템 | Apparatus and method for 3d surface shape inspection |
-
1996
- 1996-02-05 JP JP1892396A patent/JPH09210657A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010519559A (en) * | 2007-02-27 | 2010-06-03 | コーニング インコーポレイテッド | Method for quantifying defects in transparent substrates |
| JP2014167485A (en) * | 2007-02-27 | 2014-09-11 | Corning Inc | Method for quantifying defects in transparent substrate |
| JP2014025837A (en) * | 2012-07-27 | 2014-02-06 | Jfe Steel Corp | Processed state evaluating method and processed state evaluating apparatus for steel plates |
| KR20210033291A (en) * | 2019-09-18 | 2021-03-26 | 주식회사 옵트론텍 | Apparatus for inspecting optical surface |
| KR102413483B1 (en) * | 2021-07-28 | 2022-06-28 | 주식회사 프로시스템 | Apparatus and method for 3d surface shape inspection |
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