JP4343763B2 - End edge processing apparatus and processing state inspection method - Google Patents

End edge processing apparatus and processing state inspection method Download PDF

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JP4343763B2
JP4343763B2 JP2004145163A JP2004145163A JP4343763B2 JP 4343763 B2 JP4343763 B2 JP 4343763B2 JP 2004145163 A JP2004145163 A JP 2004145163A JP 2004145163 A JP2004145163 A JP 2004145163A JP 4343763 B2 JP4343763 B2 JP 4343763B2
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plate
end edge
edge
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耕一 片野
利夫 緒形
潤一 石附
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Hitachi Industrial Equipment Systems Co Ltd
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Description

本発明は、金属板などの端部エッジを、角部をなくすように加工する技術に関する。   The present invention relates to a technique for processing an edge of a metal plate or the like so as to eliminate a corner portion.

本発明に関連した従来技術としては、例えば、特開２００１−２７７０３５号公報（特許文献１）に記載されたものがある。該公報には、鋼板端部のトリム屑残りを確実に検出するために、トリミング作業後の鋼板のエッジ部分を撮影し、得られた画像情報を画像処理して第１段階の大まかなトリム不良判定を行い、不良と判定された場合に、鋼板のエッジ部分を上記とは異なる手段で撮影し、得られた画像情報を画像処理して第２段階の細かなトリム不良判定を行うとする技術が記載されている。   As a prior art related to the present invention, for example, there is one described in Japanese Patent Laid-Open No. 2001-277035 (Patent Document 1). In this publication, in order to reliably detect trim scrap residue at the end of the steel plate, the edge portion of the steel plate after trimming is photographed, and the obtained image information is processed to perform rough trim failure in the first stage. A technique in which, when it is determined to be defective, the edge portion of the steel sheet is photographed by means different from the above, and the obtained image information is subjected to image processing to perform fine trim defect determination in the second stage. Is described.

特開２００１−２７７０３５号公報JP 2001-277035 A

上記従来技術では、鋼板の上方から平面的にトリミング状態を撮影し画像処理するもので、端面エッジ部の角部の状態などは詳細に把握できず、該状態を含む条件での正確なトリム判定は難しいと考えられる。
本発明の課題点は、上記従来技術の状況に鑑み、端部エッジ加工装置において、端面エッジ部の加工状態を、角部の状態を含め詳細に把握できるようにすることである。
本発明の目的は、上記課題点を解決し、信頼性の高い端部エッジ加工技術を提供することにある。 In the above prior art, the trimming state is photographed and image-processed from above the steel plate, and the state of the corners of the end face edge portion cannot be grasped in detail, and accurate trim determination under the condition including the state is possible. Is considered difficult.
In view of the state of the prior art, the problem of the present invention is to enable the end edge processing apparatus to grasp the processing state of the end face edge portion in detail including the state of the corner portion.
An object of the present invention is to solve the above-described problems and provide a highly reliable edge processing technique.

上記課題点を解決するために、本発明では、板状材の端部エッジを、角部をとるように加工する端部エッジ加工装置として、加工された板状材の端部エッジ面に対し該エッジ面に沿った複数の方向から斜めに照明光を照射し角部のとられた厚さ方向中間部分の寸法を光学的に検出するとともに、該加工された板状材の端部の一方の板面位置と他方の板面位置とを検出し、これら検出結果に基づき、上記加工された板状材の端部の板厚を演算し、該板厚値を基準に端部エッジの加工状態を判別し、該判別の結果に基づき警報発信または表示を行う構成を備える。   In order to solve the above-mentioned problems, in the present invention, as an end edge processing apparatus for processing an end edge of a plate-like material so as to take a corner, an end edge surface of the processed plate-like material is used. Irradiating illumination light obliquely from a plurality of directions along the edge surface to optically detect the dimension of the intermediate portion in the thickness direction taken at the corner, and one of the ends of the processed plate-like material The plate surface position of the plate and the other plate surface position are detected, and based on the detection results, the plate thickness of the processed plate-like material is calculated, and the edge edge is processed based on the plate thickness value. A configuration is provided in which a state is determined and an alarm is transmitted or displayed based on the determination result.

本発明によれば、信頼性の高い端部エッジ加工技術の提供が可能となる。   According to the present invention, it is possible to provide a highly reliable edge processing technique.

以下、本発明の最良の実施形態につき、図面を用いて説明する。
図１〜図５は、本発明の実施形態の説明図である。図１は、本発明の実施形態としての端部エッジ加工装置の全体構成例図で、（ａ）は上面図、（ｂ）は側面図、図２は、図１の装置における被加工物である板状材の加工状態を検査するエッジ検査手段の構成例図、図３は、図２のエッジ検査手段のうち光源と第１の検査部の説明図、図４は、エッジ検査手段の動作手順の説明図、図５は、エッジ検査手段による判別結果の説明図である。 Hereinafter, the best embodiment of the present invention will be described with reference to the drawings.
1-5 is explanatory drawing of embodiment of this invention. FIG. 1 is an overall configuration diagram of an end edge processing apparatus as an embodiment of the present invention, (a) is a top view, (b) is a side view, and FIG. 2 is a workpiece in the apparatus of FIG. FIG. 3 is an explanatory diagram of a light source and a first inspection unit in the edge inspection means of FIG. 2, and FIG. 4 is an operation of the edge inspection means. FIG. 5 is an explanatory view of the procedure, and FIG. 5 is an explanatory view of the determination result by the edge inspection means.

図１において、１は端部エッジ加工装置、２は、端部エッジ加工装置１により、端部エッジを、角部をとるように加工される板状材、１０は、板状材２に接しその端部エッジの角部をとって例えば丸くするように加工するエッジ加工手段としての成形ローラ、１１は、板状材２の表裏面をブラッシングするためのブラッシングローラ、１２は巻取り用モータ、１３は巻戻し用モータ、１４はブレーキ、１５は巻取り用回転軸、２１は、板状材２の表面の傷を光学的に検出する傷検出部、２５は、加工された板状材２の端部エッジ面５０に対し該エッジ面５０に沿った複数の方向から斜めに照明光を照射する光源、２６は、該光照射された端部エッジ面５０における角部のとられた厚さ方向中間部分の寸法を光学的に検出する第１の検出部としてのカメラ、２８、２９はそれぞれ、該加工された板状材２の端部の一方の板面（表面）の高さ位置と他方の板面（裏面）の高さ位置とを検出する第２の検出部としてのカメラ、３０は、該カメラ２６、２８、２９からの出力信号に基づき、上記加工された板状材２の端部の板厚を演算し、該板厚値を基準に端部エッジ５０の加工状態を判別し、該判別の結果に基づき、加工状態が基準レベルを満足するか否かの表示や加工状態が不良である旨の警報信号の発信などを行う判別部、３１は、該判別部３０を含み、装置全体の制御を行う制御部である。上記光源２５、カメラ２６、２８、２９及び判別部３０は、板状材２の端部エッジの加工状態を検査するためのエッジ検査手段を構成する。   In FIG. 1, reference numeral 1 denotes an end edge processing apparatus, 2 denotes a plate-like material processed by the end edge processing apparatus 1 so as to take the end edge so as to take a corner, and 10 denotes a plate-like material 2. For example, a forming roller as an edge processing means that takes a corner portion of the end edge and processes it to be rounded, 11 is a brushing roller for brushing the front and back surfaces of the plate-like material 2, 12 is a winding motor, 13 is a motor for rewinding, 14 is a brake, 15 is a rotary shaft for winding, 21 is a flaw detector for optically detecting flaws on the surface of the plate-like material 2, and 25 is a processed plate-like material 2. A light source 26 that irradiates illumination light obliquely from a plurality of directions along the edge surface 50 with respect to the end edge surface 50 of the light source 26, and a thickness of a corner portion of the end edge surface 50 irradiated with the light As a first detection unit for optically detecting the dimension of the middle portion in the direction The cameras 28 and 29 respectively detect the height position of one plate surface (front surface) and the height position of the other plate surface (back surface) of the end portion of the processed plate-like material 2. The camera 30 serving as the detection unit of the camera calculates the thickness of the edge of the processed plate-like material 2 based on the output signals from the cameras 26, 28, and 29, and uses the thickness value as a reference. A discriminating unit that discriminates the machining state of the part edge 50 and, based on the result of the discrimination, displays whether or not the machining state satisfies a reference level and transmits an alarm signal indicating that the machining state is defective, 31 Is a control unit that includes the determination unit 30 and controls the entire apparatus. The light source 25, the cameras 26, 28, 29 and the determination unit 30 constitute edge inspection means for inspecting the processing state of the edge of the plate-like material 2.

上記構成において、巻取り用モータ１２により巻取り用回転軸１５が回転され、板状材２は巻取り用回転軸１５に巻取られながら矢印方向に走行する。走行しながら板状材２は、成形ローラ１０により端部エッジ面５０を、その角部がとられて丸くなるように加工される。加工の前後において、板状材２は、ブラッシングローラ１１により表裏面をブラッシングされる。加工された板状材２は、走行状態において、その端部エッジ面５０に、複数の光源２５により複数の方向から斜めに照明光を照射され、カメラ２６により該光照射された端部エッジ面５０を撮影され、該端部エッジ面５０における角部のとられた厚さ方向中間部分の寸法を光学的に検出される。また、カメラ２８、２９によっては、該板状材２は、端部の一方の板面（表面）の高さ位置と他方の板面（裏面）の高さ位置とを検出される。カメラ２６、２８、２９による検出情報は判別部に送られ、該判別部３０において、板状材２の端部における加工後の板厚が演算され、該板厚値と上記厚さ方向中間部分の寸法などから端部エッジ５０の加工状態が判別される。さらに、該判別部３０においては、該判別結果に基づき、加工状態が予め設定した基準値を満足するか否かの表示や加工状態が不良である旨の警報発信などが行われる。   In the above configuration, the winding rotary shaft 15 is rotated by the winding motor 12, and the plate-like material 2 travels in the direction of the arrow while being wound around the winding rotary shaft 15. While traveling, the plate-like material 2 is processed by the forming roller 10 so that the end edge surface 50 is rounded at the corners. Before and after processing, the plate-like material 2 is brushed on the front and back surfaces by a brushing roller 11. The processed plate-like material 2 is irradiated with illumination light obliquely from a plurality of directions by a plurality of light sources 25 on the end edge surface 50 of the processed plate-like material 2 in a running state, and the end edge surface irradiated with the light by the camera 26. 50 is photographed, and the dimension of the intermediate portion in the thickness direction at the corner of the end edge surface 50 is optically detected. Further, depending on the cameras 28 and 29, the plate-like material 2 can detect the height position of one plate surface (front surface) at the end and the height position of the other plate surface (back surface). Information detected by the cameras 26, 28, and 29 is sent to a determination unit, and the determination unit 30 calculates a plate thickness after processing at the end of the plate-like material 2, and the plate thickness value and the intermediate portion in the thickness direction are calculated. The processing state of the end edge 50 is discriminated from the dimensions and the like. Further, the discrimination unit 30 displays whether or not the machining state satisfies a preset reference value based on the discrimination result and issues an alarm indicating that the machining state is defective.

図２は、図１の装置におけるエッジ検査手段の構成例図である。本図２の説明中で用いる上記図１の構成要素には、図１の場合と同じ符号を付して用いる。
図２において、ｔは加工された板状材２の厚さ、Ｗ１、Ｗ２はそれぞれ、板状材２の端部エッジ面５０において成形ローラ１０により角部がとられ丸くなるように加工された部分の厚さ方向寸法、Ｗは、該端部エッジ面５０における厚さ方向中間部分の寸法（Ｗ＝ｔ−（Ｗ１＋Ｗ２））である。複数の光源２５（図示なし）により複数の方向から斜めに照明光を照射した状態で、カメラ２６が端部エッジ面５０を撮影し画像処理を行って寸法Ｗとその位置を検出する。該検出結果は、判別部３０に送信される。一方、カメラ２８、２９はそれぞれ、板状材２のＡ面の高さ位置とＢ面の高さ位置を検出し、検出結果を判別部３０に送信する。判別部３０では、カメラ２８、２９からの情報に基づき、その差分から板状材２の厚さｔを演算し、さらに、カメラ２６からの情報（寸法Ｗ）と該厚さｔとから、Ｗ１、Ｗ２を演算する。判別部３０は、これらｔ、Ｗ、Ｗ１、Ｗ２から、板状材２の端部エッジの加工状態が、予め設定した基準値を満足するか否かを判別し、その判別結果を表示するとともに、基準値を満足しない場合は警報信号を発信する。 FIG. 2 is a configuration example diagram of the edge inspection means in the apparatus of FIG. 1 used in the description of FIG. 2 are used with the same reference numerals as in FIG.
In FIG. 2, t is the thickness of the processed plate-like material 2, and W <b> 1 and W <b> 2 are processed so that the corners are rounded by the forming roller 10 on the end edge surface 50 of the plate-like material 2. The dimension in the thickness direction of the part, W, is the dimension of the intermediate part in the thickness direction on the end edge surface 50 (W = t− (W1 + W2)). In a state where illumination light is irradiated obliquely from a plurality of directions by a plurality of light sources 25 (not shown), the camera 26 images the end edge surface 50 and performs image processing to detect the dimension W and its position. The detection result is transmitted to the determination unit 30. On the other hand, the cameras 28 and 29 detect the height position of the A surface and the height position of the B surface of the plate-like material 2 and transmit the detection results to the determination unit 30. The discriminating unit 30 calculates the thickness t of the plate-like material 2 from the difference based on the information from the cameras 28 and 29, and further calculates W1 from the information (dimension W) from the camera 26 and the thickness t. , W2 is calculated. The discriminating unit 30 discriminates from these t, W, W1, and W2 whether the processing state of the end edge of the plate-like material 2 satisfies a preset reference value, and displays the discrimination result. If the reference value is not satisfied, an alarm signal is transmitted.

図３は、図２のエッジ検査手段のうち光源と第１の検査部の説明図である。
複数の光源２５とカメラ２６とにより、上記図２における寸法Ｗとその位置を検出する。複数の光源２５により端部エッジ面５０に対し複数の方向から斜めに照明光が照射された状態でカメラ２６が寸法Ｗとその位置を検出する構成としているため、１つの方向から照明光が照射される場合に比べ、カメラ２６は照射位置の状態を正確に撮影することができる。この結果、寸法Ｗとその位置が正確に検出される。 FIG. 3 is an explanatory diagram of the light source and the first inspection unit in the edge inspection means of FIG.
A plurality of light sources 25 and cameras 26 detect the dimension W and its position in FIG. Since the camera 26 is configured to detect the dimension W and its position in a state where the illumination light is obliquely irradiated from a plurality of directions to the end edge surface 50 by the plurality of light sources 25, the illumination light is irradiated from one direction. Compared to the case, the camera 26 can accurately photograph the state of the irradiation position. As a result, the dimension W and its position are accurately detected.

図４は、エッジ検査手段の動作手順の説明図である。以下、図４中で用いる上記図１、図２の構成要素には、該図１、図２の場合と同じ符号を付して用いる。
図４において、
（１）制御部３１からの指示により、エッジ検査手段が板状材２の端部エッジ５０の加工状態のチェック動作を開始する（ステップＳ４０１）。このとき、光源２５は端部エッジ面５０に対し複数の方向から斜めに照明光を照射し、カメラ２６、２８、２９も作動状態となる。
（２）カメラ２８が、板状材２の端部の一方の板面（Ａ面）の高さ位置ａ１を検出する（ステップＳ４０２）。
（３）カメラ２９が、板状材２の端部の他方の板面（Ｂ面）の高さ位置ｂ１を検出する（ステップＳ４０３）。
（４）カメラ２６が、端部エッジ面５０における厚さ方向中間部分の寸法（図２における寸法Ｗ）とその位置ａ２、ｂ２を検出する（ステップＳ４０４）。
（５）判別部３０が、カメラ２６、２８、２９からの情報に基づき、板状材２の厚さｔ、及び、加工された部分の厚さ方向寸法Ｗ１、Ｗ２を演算する（ステップＳ４０５）。
（６）判別部３０は、これらｔ、Ｗ、Ｗ１、Ｗ２から、板状材２の端部エッジの加工状態が、予め設定した基準レベルを満足するか否かを判別する。例えば、Ｗ１、Ｗ２がいずれも０．２ｔ以上であって、かつ、Ｗが０．５ｔ以下となっているか否かを判別する（ステップＳ４０６）。
（７）上記ステップＳ４０６における判別の結果、上記加工状態が上記基準レベルを満足する場合は、判別部３０はその旨を表示し、板状材２は、端部エッジの角部をとる加工において所定の加工がなされたとされ、次の加工工程に移送される。一方、上記ステップＳ４０６における判別の結果、上記加工状態が上記基準レベルを満足しない場合は、判別部３０は、その旨を表示するとともに警報信号を発信する（ステップＳ４０７）。 FIG. 4 is an explanatory diagram of the operation procedure of the edge inspection means. Hereinafter, the components in FIGS. 1 and 2 used in FIG. 4 are used with the same reference numerals as those in FIGS.
In FIG.
(1) In response to an instruction from the control unit 31, the edge inspection unit starts a check operation of the processing state of the end edge 50 of the plate-like material 2 (step S401). At this time, the light source 25 emits illumination light obliquely from a plurality of directions with respect to the end edge surface 50, and the cameras 26, 28, and 29 are also activated.
(2) The camera 28 detects the height position a1 of one plate surface (A surface) at the end of the plate-like material 2 (step S402).
(3) camera 29, detects the height position b 1 of the other plate surface of the end portion of the plate-like member 2 (B side) (step S403).
(4) The camera 26 detects the dimension (dimension W in FIG. 2) of the intermediate portion in the thickness direction on the end edge surface 50 and its positions a 2 and b 2 (step S404).
(5) Based on information from the cameras 26, 28, and 29, the determination unit 30 calculates the thickness t of the plate-like material 2 and the thickness-direction dimensions W1 and W2 of the processed portions (step S405). .
(6) The discriminating unit 30 discriminates from these t, W, W1, and W2 whether or not the processing state of the end edge of the plate-like material 2 satisfies a preset reference level. For example, it is determined whether both W1 and W2 are 0.2 t or more and W is 0.5 t or less (step S406).
(7) As a result of the determination in step S406, if the processing state satisfies the reference level, the determination unit 30 displays that fact, and the plate-like material 2 is in the processing that takes the corner of the end edge. It is assumed that the predetermined processing has been performed, and is transferred to the next processing step. On the other hand, if the result of determination in step S406 is that the machining state does not satisfy the reference level, the determination unit 30 displays that fact and sends an alarm signal (step S407).

図５は、エッジ検査手段による判別結果の説明図である。
例えば、上記図４中のステップＳ４０６の判別において、板状材２の端部エッジの加工状態が図５（イ）、（ロ）のような場合は、基準レベルを満足して「ＯＫ」と判別され、同加工状態が図５（ハ）、（ニ）、（ホ）のような場合は、基準レベルを満足せず「ＮＧ」と判別される。 FIG. 5 is an explanatory diagram of the determination result by the edge inspection means.
For example, in the determination in step S406 in FIG. 4 above, when the processing state of the edge of the plate-like material 2 is as shown in FIGS. 5A and 5B, the reference level is satisfied and “OK” is satisfied. If the machining state is as shown in FIGS. 5C, 5D, and 5E, the reference level is not satisfied and “NG” is determined.

上記実施形態によれば、端部エッジ加工装置において、板状材２の端部エッジ面５０に対し複数の方向から斜めに照明光が照射された状態でカメラ２６（図１、図２）が寸法Ｗとその位置を検出するため、該カメラ２６は照射位置の状態を正確に撮影することができ、該寸法Ｗとその位置を正確に検出することができる。また、板状材２の厚さを検出し、該厚さとの相対的関係において端面エッジ部の加工状態を判別する構成のため、板状材２の条件に対応した加工状態の判別を行うことができる。これにより、信頼性の高い端部エッジ加工技術の提供が可能となる。   According to the embodiment, in the end edge processing apparatus, the camera 26 (FIGS. 1 and 2) is in a state where illumination light is irradiated obliquely from a plurality of directions to the end edge surface 50 of the plate-like material 2. Since the dimension W and its position are detected, the camera 26 can accurately photograph the state of the irradiation position, and can accurately detect the dimension W and its position. Further, since the thickness of the plate-like material 2 is detected and the processing state of the end face edge portion is determined in relation to the thickness, the machining state corresponding to the conditions of the plate-like material 2 is determined. Can do. This makes it possible to provide a highly reliable edge processing technique.

本発明の実施形態としての端部エッジ加工装置の全体構成例図である。1 is an overall configuration example diagram of an end edge processing apparatus as an embodiment of the present invention. 図１の装置におけるエッジ検査手段の構成例図である。FIG. 2 is a configuration example diagram of edge inspection means in the apparatus of FIG. 1. 図２のエッジ検査手段のうち光源と第１の検査部の説明図である。It is explanatory drawing of a light source and a 1st test | inspection part among the edge test | inspection means of FIG. エッジ検査手段の動作手順の説明図である。It is explanatory drawing of the operation | movement procedure of an edge test | inspection means. エッジ検査手段による判別結果の説明図である。It is explanatory drawing of the discrimination | determination result by an edge test | inspection means.

符号の説明Explanation of symbols

１…端部エッジ加工装置、
２…板状材、
１０…成形ローラ、
１１…ブラッシングローラ、
１２…巻取り用モータ、
１３…巻戻し用モータ、
１４…ブレーキ、
１５…巻取り用回転軸、
２１…傷検出部、
２５…光源、
２６、２８、２９…カメラ、
３０…判別部、
３１…制御部、
５０…端部エッジ面。 1 ... End edge processing device,
2 ... Plate-like material,
10 ... Forming roller,
11 ... Brushing roller,
12 ... winding motor,
13 ... Rewinding motor,
14 ... Brake,
15: Revolving shaft for winding,
21 ... Scratch detection unit,
25 ... light source,
26, 28, 29 ... camera,
30: Discriminator,
31 ... control unit,
50: End edge surface.

Claims (2)

走行する板状材の端部エッジ面を、角部をとるように加工する端部エッジ加工装置であって、
上記角部をとって丸くなるように板状材の端部エッジ面を加工する成形ローラと、
上記成形ローラによる上記加工の前後に上記板状材の表裏面をブラッシングするブラッシングローラと、
上記端部エッジ面が加工されかつ上記表裏面がブラッシングされた板状材における該端部エッジ面に対し、該板状材の走行方向及び反走行方向の両方向からそれぞれ斜めに照明光を照射する複数の光源と、
カメラで構成され、上記照明光を照射された端部エッジ面における上記角部が丸く加工された厚さ方向中間部分の寸法Ｗとその位置を光学的に検出する第１の検出部と、
上記加工された板状材の端部の一方の板面位置を検出するカメラと、他方の板面位置とを検出するカメラとから構成される第２の検出部と、
上記第２の検出部で検出された上記板状材の端部の一方の板面位置と他方の板面位置との差分から、該板状材の厚さ寸法ｔを演算し、また、該厚さ寸法ｔと、上記第１の検出部で検出された上記寸法Ｗ及びその位置の情報とから、上記加工された板状材の端部エッジ面において上記角部が丸く加工された部分の厚さ方向寸法Ｗ１、Ｗ２を演算し、これらｔ、Ｗ、Ｗ１、Ｗ２から、端部エッジ面の加工状態が、予め設定した基準値を満たすか否かを判別し、該判別の結果を表示するとともに、該加工状態が該基準値を満たさない場合には警報信号を発信する判別部と、
を備えた構成を特徴とする端部エッジ加工装置。 An end edge processing device for processing an end edge surface of a traveling plate-like material so as to take a corner,
A forming roller for working the end edge surface of the plate-like material so that a rounded I capital the corner,
A brushing roller for brushing the front and back surfaces of the plate-like material before and after the processing by the molding roller;
Illumination light is radiated obliquely from both the traveling direction and the anti-traveling direction of the plate-like material on the edge-like edge surface of the plate-like material whose end edge surface is processed and the front and back surfaces are brushed. Multiple light sources;
Consists of a camera, a first detector for detecting the dimension W and its position in the thickness direction intermediate portion where the corner portion is machined rounded at the ends edge surface which is irradiated with the illumination light optically,
A camera for detecting the one plate surface position of the end portion of the processed plate material, a second detecting section composed of a camera for detecting the other plate surface position,
From the difference between one plate surface position and the other plate surface position of the end of the plate material detected by the second detection unit, the thickness t of the plate material is calculated, and From the thickness dimension t and the dimension W detected by the first detection unit and information on the position thereof, the corner portion of the processed edge of the plate-like material is rounded. The thickness direction dimensions W1 and W2 are calculated, and from these t, W, W1 and W2, it is determined whether the processing state of the end edge surface satisfies a preset reference value, and the result of the determination is displayed. And a discriminator for transmitting an alarm signal when the machining state does not satisfy the reference value ;
The edge part edge processing apparatus characterized by the structure provided with. 端部エッジ加工装置により、走行する板状材の端部エッジ面が角部をとるように成形ローラで加工されたとき、当該端部エッジ面の加工状態を検査する当該端部エッジ加工装置における加工状態検査方法であって、
上記成形ローラにより上記端部エッジ面が上記角部がとられて丸くなるように加工されかつ端部エッジ加工装置内のブラッシングローラで表裏面をブラッシングされた板状材における該端部エッジ面に対し、当該端部エッジ加工装置内の複数の光源が、該板状材の走行方向及び反走行方向の両方向からそれぞれ斜めに照明光を照射するとともに、当該端部エッジ加工装置内においてカメラで構成された第１の検出部が、上記照明光を照射された端部エッジ面における上記角部が丸く加工された厚さ方向中間部分の寸法Ｗとその位置を光学的に検出し、当該端部エッジ加工装置内において他の複数のカメラで構成された第２の検出部が、上記板状材の端部の一方の板面位置と他方の板面位置とをそれぞれ検出する第１のステップと、
当該端部エッジ加工装置内の判別部が、上記第２の検出部で検出された上記板状材の端部の一方の板面位置と他方の板面位置との差分から、該板状材の厚さ寸法ｔを演算し、また、該厚さ寸法ｔと、上記第１の検出部で検出された上記寸法Ｗ及びその位置の情報とから、上記加工された板状材の端部エッジ面において上記角部が丸く加工された部分の厚さ方向寸法Ｗ１、Ｗ２を演算し、これらｔ、Ｗ、Ｗ１、Ｗ２から、上記端部エッジ面の加工状態が、予め設定した基準値を満たすか否かを判別する第２のステップと、
上記判別部が、上記判別の結果を表示するとともに、該判別の結果、上記加工状態が上記基準値を満たさない場合には警報信号を発信する第３のステップと、
を備え、板状材の端部エッジ面の加工状態を検査することを特徴とする加工状態検査方法。 In the end edge processing device for inspecting the processing state of the end edge surface when the end edge surface of the traveling plate-like material is processed by the forming roller so as to take a corner by the end edge processing device. A processing state inspection method,
On the end edge surface of the plate-like material, the end edge surface of which is processed by the forming roller so that the corners are rounded and the front and back surfaces are brushed by the brushing roller in the end edge processing apparatus. On the other hand, a plurality of light sources in the edge processing apparatus irradiate illumination light obliquely from both the traveling direction and the anti-traveling direction of the plate-like material, and are configured by a camera in the edge processing apparatus. The first detection unit optically detects the dimension W and the position of the intermediate portion in the thickness direction in which the corner is rounded on the end edge surface irradiated with the illumination light, and the end A first step in which a second detection unit configured by a plurality of other cameras in the edge processing apparatus detects one plate surface position and the other plate surface position of the end portion of the plate-like material; ,
The discriminating unit in the edge part edge processing apparatus determines the plate-like material from the difference between one plate surface position and the other plate surface position of the end of the plate-like material detected by the second detection unit. The edge dimension of the processed plate-shaped material is calculated from the thickness dimension t and the dimension W detected by the first detection unit and information on the position thereof. The thickness direction dimensions W1 and W2 of the portion where the corner portion is rounded on the surface are calculated, and from these t, W, W1 and W2, the processing state of the end edge surface satisfies a preset reference value. A second step of determining whether or not,
A third step in which the determination unit displays the result of the determination, and, as a result of the determination, a warning signal is transmitted when the machining state does not satisfy the reference value;
A processing state inspection method comprising: inspecting a processing state of an end edge surface of a plate-like material .
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