JP2021081221A - Visual inspection device for article - Google Patents

Visual inspection device for article Download PDF

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JP2021081221A
JP2021081221A JP2019206591A JP2019206591A JP2021081221A JP 2021081221 A JP2021081221 A JP 2021081221A JP 2019206591 A JP2019206591 A JP 2019206591A JP 2019206591 A JP2019206591 A JP 2019206591A JP 2021081221 A JP2021081221 A JP 2021081221A
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camera
inspection object
inspection
roller
photographing
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JP6925399B2 (en
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啓真 坂井
Keishin Sakai
啓真 坂井
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SoftBank Corp
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SoftBank Corp
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Abstract

To provide a device for visual inspection of an article in which an inspection object can be inspected by reversing the inspection object on a belt conveyor and photographing at least two entire surfaces of the inspection object by a camera without covering even a part of the inspection object by a mechanism.SOLUTION: A single conveying belt 30 is made of a material having an impact absorbing property with respect to the inspection object 2, and is formed into an endless shape in which a moving locus is drawn in the horizontal direction and the vertical direction by a plurality of rollers 31 to 33. A first bent conveying path 41 is configured in the conveying belt 30 so as to have a vertical height difference by a plurality of rollers 34 to 36 which are different from the above-described rollers. Image data obtained by photographing the entire first surface of the inspection object 2 which is not reversed upstream of the first bending conveyance path 41 by the first camera 11 is output to a data processor 3. Image data obtained by photographing the entire second surface of the inspection object 2 inverted downstream of the first bent conveying path 41 by the second camera 12 is output to the data processor 3. Thus, the visual inspection can be performed in a workflow for the inspection object 2 accordingly.SELECTED DRAWING: Figure 1

Description

本発明は、ベルトコンベアで搬送される検査対象物をベルトコンベアによる搬送路の上下方向の高低差で反転することで検査対象物の少なくとも２面の全体をカメラで撮影して検査対象物の外観を検査する物品外観検査装置に関する。 In the present invention, the inspection object transported by the belt conveyor is inverted by the height difference in the vertical direction of the transport path by the belt conveyor, so that the entire at least two surfaces of the inspection object are photographed by a camera to obtain the appearance of the inspection object. Regarding the article appearance inspection device for inspecting.

特許文献１で開示された物品外観検査装置は、検査対象物の一対の端部を回転把持機機構で把持して回転することにより、検査対象物の外観をカメラで撮影して検査するようになっているが、検査対象物の一対の端部を把持している機構部品が邪魔となり、カメラが検査対象物の一対の端部の外観を撮影することができないという欠点がある。 The article appearance inspection device disclosed in Patent Document 1 is such that the appearance of an inspection object is photographed and inspected by a camera by grasping and rotating a pair of ends of the inspection object with a rotary gripping machine mechanism. However, there is a drawback that the mechanical component that grips the pair of ends of the inspection object becomes an obstacle and the camera cannot photograph the appearance of the pair of ends of the inspection object.

特開２０１８−５３１２００号公報Japanese Unexamined Patent Publication No. 2018-531200

本発明は、上記背景技術に鑑みてなされたものであり、検査対象物の一部でも機構で覆うことなくカメラで撮影して検査できる物品外観検査装置の提供を目的とする。 The present invention has been made in view of the above background technology, and an object of the present invention is to provide an article appearance inspection apparatus capable of inspecting a part of an inspection object by photographing it with a camera without covering it with a mechanism.

本発明は、ベルトコンベアで搬送される検査対象物の外観をカメラで撮影して検査対象物の外観を検査する物品外観検査装置であって、前記検査対象物に対する衝撃吸収機能を有する材料からなると共に複数のローラで左右方向及び上下方向への移動軌跡を描く無端状に形成された単一の搬送ベルトと、この搬送ベルトによる搬送路に前記複数のローラとは別の複数のローラで上下方向の高低差を有するように構成された第１折れ曲がり搬送路と、この第１折れ曲がり搬送路の上流において反転されていない前記検査対象物の第１面の全体を撮影した画像データをデータ処理装置に出力する第１カメラと、前記第１折れ曲がり搬送路の下流において反転された前記検査対象物の第２面の全体を撮影した画像データをデータ処理装置に出力する第２カメラとを備えたことを特徴とする。 The present invention is an article appearance inspection device that inspects the appearance of an inspection object by photographing the appearance of the inspection object conveyed by a belt conveyor with a camera, and is made of a material having a shock absorbing function for the inspection object. A single conveyor belt formed in an endless shape in which a plurality of rollers draw a movement locus in the left-right direction and a vertical direction, and a plurality of rollers other than the plurality of rollers in the vertical direction in the transport path formed by the transport belt. An image data obtained by photographing the entire first surface of the inspection object which is not inverted upstream of the first bent conveyor and the first bent conveyor which is configured to have a height difference of the above is used as a data processing device. It is provided with a first camera for output and a second camera for outputting image data obtained by photographing the entire second surface of the inspection object inverted downstream of the first bent conveyor to a data processing device. It is a feature.

本発明は、従来のような検査対象物の一部を把持する回転把持機機構を用いることなく、検査対象物をベルトコンベアによる搬送路の上下方向の高低差で反転することで、検査対象物の少なくとも２面の全体をカメラで撮影して検査対象物の外観を検査することを流れ作業で実現できるという効果を奏する。 The present invention does not use the conventional rotary gripping machine mechanism for gripping a part of the inspection object, but reverses the inspection object by the height difference in the vertical direction of the transport path by the belt conveyor to inspect the inspection object. It has the effect that it is possible to inspect the appearance of the inspection object by taking an image of at least two of the two surfaces with a camera in an assembly line.

発明を実施するための形態に係る物品外観検査装置を示す構成図。The block diagram which shows the article appearance inspection apparatus which concerns on embodiment for carrying out an invention. 発明を実施するための形態に係る第１折れ曲がり搬送路において検査対象物が反転する状態を示す説明図。The explanatory view which shows the state which the inspection object is inverted in the 1st bent transport path which concerns on embodiment of the invention. 発明を実施するための形態に係る第２折れ曲がり搬送路における検査対象物の動きを示す説明図。The explanatory view which shows the movement of the inspection object in the 2nd bent transport path which concerns on embodiment of the invention.

図１に示した発明を実施するための形態に係る物品外観検査装置は、ベルトコンベア１で搬送される検査対象物２をベルトコンベア１による搬送路の上下方向の高低差で反転することで、検査対象物２の少なくとも２面の全体を複数のカメラで撮影した検査対象物２の画像データを複数のカメラからデータ処理装置３に出力し、データ処理装置３に設けられたデータ作成手段１０が複数のカメラから受け取った画像データをデータ処理装置３に設けられたコンピュータで実現するＡＩ（artificial intelligence：人工知能）４を用いて推論した検査対象物２の外観における損傷度合を判定した品質判定値５２と検査対象物２の識別情報５１とを関連付けた検査結果としての外観評価データ５を作成することにより、検査対象物２の少なくとも２面の外観が検査できるようになっている。ＡＩ４に代えて、データ処理装置３が複数のカメラから受け取った画像データをデータ処理装置３に予め格納された損傷判定基準データ９に基づき解析して検査対象物２の外観における損傷度合を判定した品質判定値５２を求めてもよい。ＡＩ４と損傷判定基準データ９とのいずれか一方がデータ処理装置３に存在すればよい。データ作成手段１０はデータ処理装置３に設けられたコンピュータがコンピュータプログラムで動作することで具現化される。サーバ８はインタネットに接続されている。 The article appearance inspection device according to the embodiment of the invention shown in FIG. 1 reverses the inspection object 2 transported by the belt conveyor 1 by the height difference in the vertical direction of the transport path by the belt conveyor 1. The image data of the inspection object 2 obtained by photographing at least two surfaces of the inspection object 2 with a plurality of cameras is output from the plurality of cameras to the data processing device 3, and the data creating means 10 provided in the data processing device 3 is provided. A quality judgment value for determining the degree of damage in the appearance of the inspection object 2 inferred using AI (artificial intelligence) 4 realized by a computer provided in the data processing device 3 for image data received from a plurality of cameras. By creating the appearance evaluation data 5 as an inspection result in which the 52 and the identification information 51 of the inspection object 2 are associated with each other, the appearance of at least two surfaces of the inspection object 2 can be inspected. Instead of AI4, the data processing device 3 analyzes the image data received from the plurality of cameras based on the damage determination standard data 9 stored in advance in the data processing device 3 to determine the degree of damage in the appearance of the inspection object 2. The quality determination value 52 may be obtained. Either one of the AI 4 and the damage determination reference data 9 may be present in the data processing device 3. The data creating means 10 is embodied by operating a computer provided in the data processing device 3 with a computer program. The server 8 is connected to the Internet.

よって、表示装置７が外観評価データ５を可視化表示し、この表示装置７に表示された外観評価データ５に従い、作業者又は仕分け装置が物品外観検査装置での外観検査の終了した検査対象物２を識別情報５１と品質判定値５２とに従い外観品質の種類ごとに仕分けることができる。つまり、データ作成手段１０で作成された外観評価データ５に基づき検査終了後の検査対象物２を仕分けするので、検査終了後の検査対象物２の仕分け作業か容易になる。又、サーバ８は、データ処理装置３から受け取った外観評価データ５をデータベースとして蓄積し、サーバ８に蓄積された外観評価データ５をインタネット経由で検査対象物２の価格付け及び販売用に利用できるようにしてもよい。 Therefore, the display device 7 visualizes and displays the appearance evaluation data 5, and according to the appearance evaluation data 5 displayed on the display device 7, the worker or the sorting device has completed the appearance inspection of the article appearance inspection device. Can be sorted according to the type of appearance quality according to the identification information 51 and the quality determination value 52. That is, since the inspection target 2 after the inspection is completed is sorted based on the appearance evaluation data 5 created by the data creating means 10, the sorting work of the inspection target 2 after the inspection is completed becomes easy. Further, the server 8 stores the appearance evaluation data 5 received from the data processing device 3 as a database, and the appearance evaluation data 5 stored in the server 8 can be used for pricing and selling the inspection object 2 via the Internet. You may do so.

検査対象物２としては、立方体、直方体、リユース目的のスマートフォンのような携帯電話機等やデータ通信カード等の携帯端末の６面体を例示し、検査対象物２の６面を第１カメラ１１、第２カメラ１２、第３カメラ１３、第４カメラ１４、第５カメラ１５、第６カメラ１６からなる６台のカメラで個別に撮影する場合を例示した。よって、前記複数のカメラとしては第１カメラ１１、第２カメラ１２、第３カメラ１３、第４カメラ１４、第５カメラ１５、第６カメラ１６からなるが、検査対象物２の２面の外観を検査する場合には２台のカメラ、検査対象物２の３面の外観を検査する場合には３台のカメラ、検査対象物２の４面の外観を検査する場合には４台のカメラ、検査対象物２の５面の外観を検査する場合には５台のカメラを用いればよい。 Examples of the inspection object 2 include a cube, a cube, a mobile phone such as a smartphone for reuse, and a hexahedron of a mobile terminal such as a data communication card. An example is shown in which six cameras including two cameras 12, a third camera 13, a fourth camera 14, a fifth camera 15, and a sixth camera 16 take pictures individually. Therefore, the plurality of cameras include the first camera 11, the second camera 12, the third camera 13, the fourth camera 14, the fifth camera 15, and the sixth camera 16, but the appearance of the two surfaces of the inspection object 2 2 cameras when inspecting, 3 cameras when inspecting the appearance of 3 sides of the inspection object 2, and 4 cameras when inspecting the appearance of 4 sides of the inspection object 2. When inspecting the appearance of the five surfaces of the inspection object 2, five cameras may be used.

第１カメラ１１、第２カメラ１２、第３カメラ１３、第４カメラ１４、第５カメラ１５、第６カメラ１６のそれぞれで検査対象物２を撮影する領域は、外光の照射を受けないように暗箱４６で覆われている。暗箱４６の第１カメラ１１で検査対象物２を撮影する領域の側には検査対象物２とベルトコンベア１の搬送ベルト３０との通過を許容する入口が設けられ、暗箱４６の第６カメラ１６で検査対象物２を撮影する領域の側には検査対象物２とベルトコンベア１の搬送ベルト３０との通過を許容する出口が設けられている。 The area where the inspection object 2 is photographed by each of the first camera 11, the second camera 12, the third camera 13, the fourth camera 14, the fifth camera 15, and the sixth camera 16 should not be irradiated with external light. It is covered with a dark box 46. An entrance that allows passage between the inspection object 2 and the conveyor belt 30 of the belt conveyor 1 is provided on the side of the area where the inspection object 2 is photographed by the first camera 11 of the dark box 46, and the sixth camera 16 of the dark box 46 is provided. On the side of the area where the inspection object 2 is photographed, an outlet is provided to allow the inspection object 2 and the conveyor belt 30 of the belt conveyor 1 to pass through.

第１カメラ１１は、ベルトコンベア１で搬送されて反転していない検査対象物２の第１面を検査対象物２の上方より撮影するカメラである。第２カメラ１２は、ベルトコンベア１で搬送されて反転された検査対象物２の第２面を検査対象物２の上方より撮影するカメラである。第３カメラ１３は、ベルトコンベア１で搬送されて反転していない検査対象物２の第３面を検査対象物２の搬送方向３８の前側より撮影するカメラである。第４カメラ１４は、ベルトコンベア１で搬送されて反転された検査対象物２の第４面を検査対象物２の搬送方向３８の前側より撮影するカメラである。第５カメラ１５は、ベルトコンベア１で搬送されて反転された検査対象物２の第５面を検査対象物２の搬送方向３８と交差する側方より撮影するカメラである。第６カメラ１６は、ベルトコンベア１で搬送されて反転された検査対象物２の第６面を検査対象物２の搬送方向３８と交差する側方より撮撮影するカメラである。第５カメラ１５と第６カメラ１６とは、搬送ベルト３０を境として左右に分かれて配置される。例えば、第５カメラ１５が搬送ベルト３０の搬送方向３８と交差する方向の左側に配置されたならば、第６カメラ１６が搬送ベルト３０の搬送方向３８と交差する方向の右側に配置される。第５カメラ１５が搬送ベルト３０の搬送方向３８と交差する方向の右側に配置されたならば、第６カメラ１６が搬送ベルト３０の搬送方向３８と交差する方向の左側に配置される。 The first camera 11 is a camera that photographs the first surface of the inspection object 2 that has not been inverted while being conveyed by the belt conveyor 1 from above the inspection object 2. The second camera 12 is a camera that photographs the second surface of the inspection object 2 that has been conveyed and inverted by the belt conveyor 1 from above the inspection object 2. The third camera 13 is a camera that photographs the third surface of the inspection object 2, which is conveyed by the belt conveyor 1 and is not inverted, from the front side of the inspection object 2 in the conveying direction 38. The fourth camera 14 is a camera that photographs the fourth surface of the inspection object 2 that has been conveyed and inverted by the belt conveyor 1 from the front side of the inspection object 2 in the conveying direction 38. The fifth camera 15 is a camera that photographs the fifth surface of the inspection object 2 that has been conveyed and inverted by the belt conveyor 1 from the side that intersects the conveying direction 38 of the inspection object 2. The sixth camera 16 is a camera that takes a picture of the sixth surface of the inspection object 2, which is conveyed and inverted by the belt conveyor 1, from the side intersecting the conveying direction 38 of the inspection object 2. The fifth camera 15 and the sixth camera 16 are arranged separately on the left and right sides of the transport belt 30 as a boundary. For example, if the fifth camera 15 is arranged on the left side in the direction intersecting the conveying direction 38 of the conveying belt 30, the sixth camera 16 is arranged on the right side in the direction intersecting the conveying direction 38 of the conveying belt 30. If the fifth camera 15 is arranged on the right side in the direction intersecting the conveying direction 38 of the conveying belt 30, the sixth camera 16 is arranged on the left side in the direction intersecting the conveying direction 38 of the conveying belt 30.

ベルトコンベア１は、検査対象物２を一方向に動力で運搬する搬送路を構成するものであって、ゴムベルト等の衝撃吸収機能を有する材料から無端状に形成された単一の搬送ベルト３０と、搬送ベルト３０を支持する第１ローラ３１、第２ローラ３２、第３ローラ３３、第４ローラ３４、第５ローラ３５、第６ローラ３６からなる複数のローラと、複数のローラのうちの１個のローラとしての第１ローラ３１に一方向への回転駆動力を伝達するモータ３７とを備え、モータ３７の出力軸から動力を受けた第１ローラ３１が一方向に回転駆動するのに伴い、搬送ベルト３０が第１ローラ３１、第２ローラ３２、第３ローラ３３、第４ローラ３４、第５ローラ３５、第６ローラ３６からなる複数のローラの回転運動で誘導されて矢印で示す搬送方向３８へ移動する無端状の搬送路を構成している。搬送ベルト３０は矢印で示す搬送方向３８に延びる帯状の一端部と他端部とが互いに向き合わされて結合されたことで環状の無端状になっている。 The belt conveyor 1 constitutes a transport path for transporting the inspection object 2 by power in one direction, and includes a single transport belt 30 formed endlessly from a material having a shock absorbing function such as a rubber belt. A plurality of rollers including a first roller 31, a second roller 32, a third roller 33, a fourth roller 34, a fifth roller 35, and a sixth roller 36 that support the transport belt 30, and one of the plurality of rollers. The first roller 31 as an individual roller is provided with a motor 37 that transmits a rotational driving force in one direction, and as the first roller 31 that receives power from the output shaft of the motor 37 is rotationally driven in one direction. , The transport belt 30 is guided by the rotational movement of a plurality of rollers including the first roller 31, the second roller 32, the third roller 33, the fourth roller 34, the fifth roller 35, and the sixth roller 36, and is indicated by the arrow. It constitutes an endless transport path that moves in the direction 38. The transport belt 30 has an annular endless shape because one end and the other end of the band extending in the transport direction 38 indicated by the arrows are faced to each other and connected to each other.

例えば、複数のローラの個数は６個に限定されるものではないが、図１では６個のローラにより検査対象物２をベルトコンベア１による搬送路の上下方向の高低差で反転するための折れ曲がり搬送路を、第１折れ曲がり搬送路４１と第２折れ曲がり搬送路４２とからなる複数備えた構造を例示した。搬送ベルト３０が最も右側に配置された第１ローラ３１と最も左下側に配置された第２ローラ３２と最左上側に配置された第３ローラ３３とによって左右方向及び上下方向への移動軌跡を描くようになっている。第１ローラ３１と第３ローラ３３との間には、第４ローラ３４、第５ローラ３５、第６ローラ３６からなる３個のローラが左右及び上下に互いに離れて配置される。 For example, the number of a plurality of rollers is not limited to six, but in FIG. 1, the number of rollers is not limited to six, but in FIG. 1, the inspection object 2 is bent by the belt conveyor 1 to be inverted by the height difference in the vertical direction of the transport path. An example shows a structure including a plurality of transport paths including a first bent transport path 41 and a second bent transport path 42. The first roller 31 arranged on the rightmost side of the transport belt 30, the second roller 32 arranged on the lower leftmost side, and the third roller 33 arranged on the upper leftmost side provide a movement locus in the left-right direction and the up-down direction. It is designed to draw. Between the first roller 31 and the third roller 33, three rollers including the fourth roller 34, the fifth roller 35, and the sixth roller 36 are arranged so as to be separated from each other on the left and right and vertically.

具体的には、搬送ベルト３０が、第６ローラ３６の側から第１ローラ３１の右側を経由して第２ローラ３２の側に向うように第１ローラ３１の外周面に右回りに掛け渡され、第１ローラ３１の側から第２ローラ３２の左側を経由して第３ローラ３３の側に向かうように第２ローラ３２の外周面に右回りに掛け渡され、第２ローラ３２の側から第３ローラ３３の左側を経由して第４ローラ３４の側に向うように第３ローラ３３の外周面に右回り掛け渡され、第３ローラ３３の側から第４ローラ３４の上側を経由して第５ローラ３５の側に向かうように第４ローラ３４の外周面に右回りに掛け渡され、第４ローラ３４の側から第５ローラ３５の左側を経由して第６ローラ３６に向かうように第５ローラ３５の外周面に左回りに掛け渡され、第５ローラ３５の側から第６ローラ３６の上側を経由して第１ローラ３１の側に向うように第６ローラ３６の外周面に右回り掛け渡されるといように、搬送ベルト３０の一端部が第１ローラ３１から第２ローラ３２、第３ローラ３３、第４ローラ３４、第５ローラ３５、第６ローラ３６を順に経由して第１ローラ３１に到達して搬送ベルト３０の他端部に結合され、モータ３７の動力を受けた第１ローラ３１が一方向に回転駆動するのに伴い、搬送ベルト３０が第１ローラ３１乃至第６ローラ３６からなる複数ローラで誘導されて矢印で示す搬送方向３８への移動軌跡を描く無端状の搬送路を構成している。 Specifically, the transport belt 30 is hung clockwise on the outer peripheral surface of the first roller 31 so as to face the side of the second roller 32 from the side of the sixth roller 36 via the right side of the first roller 31. Then, it is hung clockwise from the side of the first roller 31 to the outer peripheral surface of the second roller 32 so as to go toward the side of the third roller 33 via the left side of the second roller 32, and is hung on the side of the second roller 32. It is passed clockwise from the side of the third roller 33 to the outer peripheral surface of the third roller 33 so as to face the side of the fourth roller 34 via the left side of the third roller 33, and passes from the side of the third roller 33 to the upper side of the fourth roller 34. Then, it is hung clockwise on the outer peripheral surface of the fourth roller 34 so as to face the side of the fifth roller 35, and heads toward the sixth roller 36 from the side of the fourth roller 34 via the left side of the fifth roller 35. The outer circumference of the sixth roller 36 is hung counterclockwise on the outer peripheral surface of the fifth roller 35, and is directed from the side of the fifth roller 35 to the side of the first roller 31 via the upper side of the sixth roller 36. One end of the transport belt 30 passes through the first roller 31, the second roller 32, the third roller 33, the fourth roller 34, the fifth roller 35, and the sixth roller 36 in order so that the conveyor belt 30 is hung clockwise on the surface. Then, as the first roller 31 reaches the first roller 31 and is coupled to the other end of the conveyor belt 30 and is driven to rotate in one direction by receiving the power of the motor 37, the conveyor belt 30 is driven by the first roller. It constitutes an endless transport path that is guided by a plurality of rollers composed of 31 to 6th rollers 36 and draws a movement locus in the transport direction 38 indicated by an arrow.

又、搬送ベルト３０の第２ローラ３２を経由せずに第１ローラ３１と第３ローラ３３とに掛け渡された部分が、第３ローラ３３の側から第４ローラ３４の上側を経由して第５ローラ３５の側に向かうように第４ローラ３４の外周面に右回りに掛け渡され、第４ローラ３４の側から第５ローラ３５の下側を経由して第６ローラ３６の側に向かうように第５ローラ３５の外周面に左回りに掛け渡され、第５ローラ３５の側から第６ローラ３６の上側を経由して第１ローラ３１の側に向かうように第６ローラ３６の外周面に右回りに掛け渡されたことによって、搬送ベルト３０で構成された搬送路に、上下方向の高低差を有する第１折れ曲がり搬送路４１と、上下方向の高低差を有するように上側に突出する凸状の第２折れ曲がり搬送路４２とが構成される。 Further, the portion of the transport belt 30 that is hung between the first roller 31 and the third roller 33 without passing through the second roller 32 passes from the side of the third roller 33 to the upper side of the fourth roller 34. It is hung clockwise on the outer peripheral surface of the fourth roller 34 so as to face the side of the fifth roller 35, and is hung from the side of the fourth roller 34 to the side of the sixth roller 36 via the lower side of the fifth roller 35. It is hung counterclockwise on the outer peripheral surface of the fifth roller 35 so as to face the sixth roller 36 so as to go from the side of the fifth roller 35 to the side of the first roller 31 via the upper side of the sixth roller 36. By being hung clockwise on the outer peripheral surface, the transport path composed of the transport belt 30 has a first bent transport path 41 having a height difference in the vertical direction and an upper side so as to have a height difference in the vertical direction. A protruding second bent transport path 42 is configured.

第１折れ曲がり搬送路４１は、搬送ベルト３０の第３ローラ３３の側から第４ローラ３４及び第５ローラ３５を経由して第６ローラ３６の側に延びる部分で構成されている。第１折れ曲がり搬送路４１には、第１折れ曲がり搬送路４１の上流において反転されていない検査対象物２の第１面の全体を撮影した画像データをデータ処理装置３に出力する第１カメラ１１と、第１折れ曲がり搬送路４１の上流において反転されていない検査対象物２の第３面の全体を撮影した画像データをデータ処理装置３に出力する第３カメラ１３と、第１折れ曲がり搬送路４１の下流において反転された検査対象物２の第２面の全体を撮影した画像データをデータ処理装置３に出力する第２カメラ１２と、第１折れ曲がり搬送路４１の下流において反転された検査対象物２の第５面の全体を撮影した画像データをデータ処理装置３に出力する第５カメラ１５と、第１折れ曲がり搬送路４１の下流において反転された検査対象物２の第６面の全体を撮影した画像データをデータ処理装置３に出力する第６カメラ１６とが配置されている。 The first bent transport path 41 is composed of a portion extending from the side of the third roller 33 of the transport belt 30 to the side of the sixth roller 36 via the fourth roller 34 and the fifth roller 35. The first bent transport path 41 includes a first camera 11 that outputs image data obtained by photographing the entire first surface of the inspection object 2 that has not been inverted upstream of the first bent transport path 41 to the data processing device 3. , The third camera 13 that outputs the image data obtained by photographing the entire third surface of the inspection object 2 that has not been inverted upstream of the first bent transport path 41 to the data processing device 3, and the first bent transport path 41. The second camera 12 that outputs the image data obtained by photographing the entire second surface of the inspection object 2 inverted downstream to the data processing device 3, and the inspection object 2 inverted downstream of the first bent transport path 41. The fifth camera 15 that outputs the image data obtained by photographing the entire fifth surface of the above to the data processing device 3, and the entire sixth surface of the inspection object 2 inverted downstream of the first bent transport path 41 were photographed. A sixth camera 16 that outputs image data to the data processing device 3 is arranged.

第１カメラ１１の配置される第１折れ曲がり搬送路４１の上流とは搬送ベルト３０の第３ローラ３３と第４ローラ３４とに掛け渡された部分に対し上方に離れた位置である。第３カメラ１３の配置される第１折れ曲がり搬送路４１の上流とは搬送ベルト３０の第４ローラ３４に掛け渡された部分に対し搬送方向３８の前側に搬送ベルト３０より離れた位置である。第２カメラ１２の配置される第１折れ曲がり搬送路４１の下流とは搬送ベルト３０の第５ローラ３５と第６ローラ３６とに掛け渡された部分に対し上方に離れた位置である。第５カメラ１５及び第６カメラ１６の配置される第１折れ曲がり搬送路４１の下流とは搬送ベルト３０の第５ローラ３５と第６ローラ３６とに掛け渡された部分に対し搬送方向３８に交差する側方に離れた位置である。第１折れ曲がり搬送路４１では、第５ローラ３５が第４ローラ３４よりも左側及び下側に配置されたことによって、搬送ベルト３０の第４ローラ３４から第５ローラ３５に向けて移動する部分と第５ローラ３５とが搬送ベルト３０の第４ローラ３４の部分から下方に向けて搬送されて落下する検査対象物２と接触しないような逃げ空間４３を構成している。 The upstream of the first bent transport path 41 in which the first camera 11 is arranged is a position separated upward from the portion of the transport belt 30 spanned by the third roller 33 and the fourth roller 34. The upstream of the first bent transport path 41 in which the third camera 13 is arranged is a position separated from the transport belt 30 on the front side in the transport direction 38 with respect to the portion of the transport belt 30 hung on the fourth roller 34. The downstream side of the first bent transport path 41 in which the second camera 12 is arranged is a position separated upward from the portion of the transport belt 30 spanned by the fifth roller 35 and the sixth roller 36. The downstream of the first bent transport path 41 in which the fifth camera 15 and the sixth camera 16 are arranged intersects the portion of the transport belt 30 spanned by the fifth roller 35 and the sixth roller 36 in the transport direction 38. It is a position away from the side of the camera. In the first bent transport path 41, the fifth roller 35 is arranged on the left side and the lower side of the fourth roller 34, so that the portion of the transport belt 30 moves from the fourth roller 34 to the fifth roller 35. An escape space 43 is formed so that the fifth roller 35 and the fifth roller 35 do not come into contact with the inspection object 2 which is conveyed downward from the portion of the fourth roller 34 of the conveyor belt 30 and falls.

第１折れ曲がり搬送路４１では、検査対象物２が搬送ベルト３０の第４ローラ３４の部分から落下する工程において、検査対象物２のそれまで上を向いていた第１面が下向きとなり、検査対象物２のそれまで下を向いて搬送ベルト３０の上面に接触していた第２面が上向きとなるように、搬送ベルト３０に対する検査対象物２の第１面と第２面との配置が上下方向で正反対になるように、検査対象物２が反転して搬送ベルト３０の第５ローラ３５と第６ローラ３６との間に位置する部分の上に着地するようになっている。 In the first bent transport path 41, in the process in which the inspection target 2 falls from the portion of the fourth roller 34 of the transport belt 30, the first surface of the inspection target 2 that has been facing upward is turned downward, and the inspection target is to be inspected. The arrangement of the first surface and the second surface of the inspection object 2 with respect to the transfer belt 30 is up and down so that the second surface of the object 2 facing downward and in contact with the upper surface of the transfer belt 30 faces upward. The inspection object 2 is inverted so as to be opposite in the direction and lands on the portion of the transport belt 30 located between the fifth roller 35 and the sixth roller 36.

このような検査対象物２に対する第１折れ曲がり搬送路４１における逃げ空間４３の構成と搬送ベルト３０の第５ローラ３５と第６ローラ３６との間に位置する部分の上に落下して着地する構成と搬送ベルト３０の衝撃吸収機能を有する材料とにより、反転する検査対象物２の外面が第５ローラ３５またはベルトコンベア１から損傷を受けることがないように保護される。 The configuration of the escape space 43 in the first bent transport path 41 for the inspection object 2 and the configuration of falling and landing on the portion of the transport belt 30 located between the fifth roller 35 and the sixth roller 36. And the material having a shock absorbing function of the transport belt 30 protects the outer surface of the inverted inspection object 2 from being damaged by the fifth roller 35 or the belt conveyor 1.

又、第１折れ曲がり搬送路４１では、検査対象物２が搬送ベルト３０で搬送方向３８に運搬され、検査対象物２の第３面の全体が第４ローラ３４よりも搬送方向３８の前側に突出して搬送ベルト３０からはなれて第３カメラ１３の撮影領域に入ることにより、第３カメラ１３が搬送ベルト３０を撮影することなく避けて検査対象物２の第３面の全体を撮影することができる。 Further, in the first bent transport path 41, the inspection target object 2 is transported in the transport direction 38 by the transport belt 30, and the entire third surface of the inspection target object 2 projects toward the front side in the transport direction 38 from the fourth roller 34. By moving away from the transport belt 30 and entering the photographing area of the third camera 13, the third camera 13 can avoid photographing the transport belt 30 and photograph the entire third surface of the inspection object 2. ..

第２折れ曲がり搬送路４２は、搬送ベルト３０が第５ローラ３５の側から第６ローラ３６を経由して第１ローラ３１の側に延びる部分で構成されている。第２折れ曲がり搬送路４２には、第２折れ曲がり搬送路４２の上側に凸状の頂上部において反転された検査対象物２の第４面の全体を撮影した画像データをデータ処理装置３に出力する第４カメラ１４が配置されている。第４カメラ１４の配置される第２折れ曲がり搬送路４２の頂上部とは搬送ベルト３０の第６ローラ３６に掛け渡された部分より搬送方向３８の前側に離れた部分である。第２折れ曲がり搬送路４２においては、第６ローラ３６が第５ローラ３５よりも右側及び上側に配置されかつ第４ローラ３４よりも右側及び下側に配置されたことによって、搬送ベルト３０の第５ローラ３５から第６ローラ３６を経由して第１ローラ３１の側に向けて移動する部分が上側に突出する凸状になっている。 The second bent transport path 42 is composed of a portion in which the transport belt 30 extends from the side of the fifth roller 35 to the side of the first roller 31 via the sixth roller 36. In the second bent transport path 42, the image data obtained by photographing the entire fourth surface of the inspection object 2 inverted at the top convex on the upper side of the second bent transport path 42 is output to the data processing device 3. A fourth camera 14 is arranged. The top of the second bent transport path 42 in which the fourth camera 14 is arranged is a portion of the transport belt 30 that is separated from the portion hung on the sixth roller 36 in the transport direction 38 toward the front side. In the second bent transport path 42, the sixth roller 36 is arranged on the right side and the upper side of the fifth roller 35, and is arranged on the right side and the lower side of the fourth roller 34, so that the fifth roller 30 is arranged. The portion that moves from the roller 35 toward the side of the first roller 31 via the sixth roller 36 has a convex shape that projects upward.

具体的には、搬送ベルト３０の第５ローラ３５から第６ローラ３６の側に延びる部分が第５ローラ３５から第６ローラ３６の側に向けて上り勾配となった上り勾配斜面部６２になっている。又、搬送ベルト３０の第６ローラ３６から第１ローラ３１の側に延びる部分が第６ローラ３６から第１ローラ３１の側に向けて下り勾配となった下り勾配斜面部６３になっている。このような第２折れ曲がり搬送路４２における第６ローラ３６を境とした上り勾配斜面部６２と下り勾配斜面部６３との構成により、第４カメラ１４が搬送ベルト３０を避けて真横から検査対象物２の第４面の全体を撮影することができる。 Specifically, the portion of the transport belt 30 extending from the fifth roller 35 to the sixth roller 36 side becomes an ascending slope portion 62 having an ascending slope from the fifth roller 35 toward the sixth roller 36 side. ing. Further, a portion of the transport belt 30 extending from the sixth roller 36 to the side of the first roller 31 is a downward slope portion 63 having a downward slope from the sixth roller 36 toward the side of the first roller 31. Due to the configuration of the uphill slope portion 62 and the downhill slope portion 63 with the sixth roller 36 as the boundary in the second bent transport path 42, the fourth camera 14 avoids the transport belt 30 and inspects the object from the side. The entire fourth surface of 2 can be photographed.

搬送ベルト３０の第３ローラ３３と第４ローラ３４とに掛け渡された部分が検査対象物２を受け入れる搬入領域となり、搬入領域に搭載された検査対象物２に付されたＩＭＥＩ等の識別情報５１を電気的又は光学的に読み取る読取器３９が配置され、読取器３９が読み取った検査対象物２の識別情報５１をデータ処理装置３に出力する。読取器３９で検査対象物２の識別情報５１を読み取る代わりに、検査対象物２がリユース目的のスマートフォンの場合、作業者が検査対象物２を電気的に起動させ、搬入領域に搭載された検査対象物２が自分の識別情報５１を発信または表示し、データ処理装置３が検査対象物２から発信または表示された識別情報５１を受信または読み取りするようにしてもよい。 The portion of the transport belt 30 spanned by the third roller 33 and the fourth roller 34 serves as a carry-in area for receiving the inspection object 2, and identification information such as IMEI attached to the inspection object 2 mounted on the carry-in area. A reader 39 that electrically or optically reads the 51 is arranged, and the identification information 51 of the inspection object 2 read by the reader 39 is output to the data processing device 3. Instead of reading the identification information 51 of the inspection target 2 with the reader 39, when the inspection target 2 is a smartphone for reuse, the operator electrically activates the inspection target 2 and the inspection mounted in the carry-in area. The object 2 may transmit or display its own identification information 51, and the data processing device 3 may receive or read the identification information 51 transmitted or displayed from the inspection object 2.

ＩＭＥＩはInternational Mobile Equipment Identifier（国際移動体装置識別番号）の略式表記であり、携帯電話機やデータ通信カード等の携帯端末が１台ずつ持っている識別番号であり、各携帯端末１台ずつに異なる番号になっており、ＵＳＩＭカード等が差し替えられても変わらないように各携帯端末に内蔵されたデータ記憶部に格納されている。 IMEI is an abbreviation for International Mobile Equipment Identifier, which is an identification number that each mobile terminal such as a mobile phone or data communication card has, and is different for each mobile terminal. It is a number and is stored in a data storage unit built into each mobile terminal so that it does not change even if the USIM card or the like is replaced.

又、検査対象物２がリユース目的のスマートフォンの場合、検査対象物２が搬入領域に搬入されるよりも前の時点において検査対象物２の識別情報５１が読み取られ、この読み取られた識別情報５１を表記されたラベルが検査対象物２の脇の場所としての搬入領域に付され、この搬入領域に付されたラベルに記載された識別情報５１を読取器３９で読み取るようにしてもよい。尚、読取器３９がカメラのような光学式の場合には、読取器３９が暗箱４６の内部に配置されることで外光からの照射を受けないで識別情報５１を読み取ることができる。又、搬送ベルト３０の検査対象物２を搭載する面に対し、ブラシ等の払拭器４７が設けられれば、搬送ベルト３０に搭載された検査対象物２への搬送ベルト３０からの塵埃の付着を防止できる。 When the inspection target 2 is a smartphone for reuse, the identification information 51 of the inspection target 2 is read before the inspection target 2 is carried into the carry-in area, and the read identification information 51 is read. Is attached to the carry-in area as a place beside the inspection object 2, and the identification information 51 written on the label attached to the carry-in area may be read by the reader 39. When the reader 39 is an optical type such as a camera, the reader 39 is arranged inside the dark box 46 so that the identification information 51 can be read without being irradiated by external light. Further, if a wiper 47 such as a brush is provided on the surface of the transport belt 30 on which the inspection target object 2 is mounted, dust from the transport belt 30 can be prevented from adhering to the inspection target object 2 mounted on the transport belt 30. Can be prevented.

データ処理装置３には、第１カメラ１１乃至第６カメラ１６を撮影するように制御するデータ処理装置３に内蔵されたコンピュータを動かす撮影プログラム６が設けられている。撮影プログラム６は、搬送ベルト３０による検査対象物２の搬送速度と、検査対象物２の搬入領域から検査対象物２の第１面としての表面２１の全体が第１カメラ１１の撮影領域に入るまでの到達時間と、検査対象物２の搬入領域から検査対象物２の第２面としての裏面２２の全体が第２カメラ１２の撮影領域に入るまでの到達時間と、検査対象物２の搬入領域から検査対象物２の第３面としての前側面２３の全体が第３カメラ１３の撮影領域に入るまでの到達時間と、検査対象物２の搬入領域から検査対象物２の第４面としての前側面２４の全体が第４カメラ１４の撮影領域に入るまでの到達時間と、検査対象物２の搬入領域から検査対象物２の第５面としての右側面の全体が第５カメラ１５の撮影領域に入るまでの到達時間と、検査対象物２の搬入領域から検査対象物２の第６面としての左側面の全体が第６カメラ１６の撮影領域に入るまでの到達時間とにより、第１カメラ１１乃至第６カメラ１６のそれぞれに対する撮影開始から撮影終了までの撮影時間を演算し、この演算結果に基づき第１カメラ１１乃至第６カメラ１６を撮影するように制御するコンピュータプログラムである。 The data processing device 3 is provided with a shooting program 6 that operates a computer built in the data processing device 3 that controls the first camera 11 to the sixth camera 16 to shoot. In the photographing program 6, the conveying speed of the inspection object 2 by the conveying belt 30 and the entire surface 21 as the first surface of the inspection object 2 from the carry-in area of the inspection object 2 enter the photographing area of the first camera 11. The arrival time until the entire back surface 22 as the second surface of the inspection object 2 from the carry-in area of the inspection object 2 enters the photographing area of the second camera 12, and the carry-in of the inspection target 2. The arrival time from the area until the entire front side surface 23 as the third surface of the inspection object 2 enters the imaging area of the third camera 13, and the fourth surface of the inspection object 2 from the carry-in area of the inspection object 2. The arrival time until the entire front side surface 24 of the fourth camera 14 enters the photographing area of the fourth camera 14, and the entire right side surface of the inspection object 2 as the fifth surface from the carry-in area of the inspection object 2 is the fifth camera 15. Depending on the arrival time until entering the photographing area and the arrival time from the carry-in area of the inspection object 2 to the entire left side surface of the inspection object 2 as the sixth surface entering the photographing area of the sixth camera 16. This is a computer program that calculates the shooting time from the start of shooting to the end of shooting for each of the 1 camera 11 to the 6th camera 16 and controls the shooting of the 1st camera 11 to the 6th camera 16 based on the calculation result.

尚、撮影プログラム６は、第１撮影プログラム、第２撮影プログラム、第３撮影プログラム、第４撮影プログラム、第５撮影プログラムから構成されてもよい。第１撮影プログラムは、搬送ベルト３０による検査対象物２の搬送速度と、検査対象物２の搬入領域から検査対象物２の第１面としての表面２１の全体が第１カメラ１１の撮影領域に入るまでの到達時間と、検査対象物２の搬入領域から検査対象物２の第２面としての裏面２２の全体が第２カメラ１２の撮影領域に入るまでの到達時間とにより、第１カメラ１１及び第２カメラ１２のそれぞれに対する撮影開始から撮影終了までの撮影時間を演算し、この演算結果に基づき第１カメラ１１乃及び第２カメラ１２を撮影するように制御するコンピュータプログラムである。 The shooting program 6 may be composed of a first shooting program, a second shooting program, a third shooting program, a fourth shooting program, and a fifth shooting program. In the first photographing program, the conveying speed of the inspection object 2 by the conveying belt 30 and the entire surface 21 as the first surface of the inspection object 2 from the carry-in area of the inspection object 2 become the photographing area of the first camera 11. The first camera 11 depends on the arrival time until the entry, and the arrival time from the carry-in area of the inspection object 2 to the entire back surface 22 as the second surface of the inspection object 2 entering the photographing area of the second camera 12. It is a computer program that calculates the shooting time from the start of shooting to the end of shooting for each of the second camera 12 and controls to shoot the first camera 11 and the second camera 12 based on the calculation result.

第２撮影プログラムは、搬送ベルト３０による検査対象物２の搬送速度と、検査対象物２の搬入領域から検査対象物２の第３面としての前側面２３の全体が第３カメラ１３の撮影領域に入るまでの到達時間とにより、第３カメラ１３に対する撮影開始から撮影終了までの撮影時間を演算し、この演算結果に基づき第３カメラ１３を撮影するように制御するコンピュータプログラムである。 In the second photographing program, the conveying speed of the inspection object 2 by the conveying belt 30 and the entire front side surface 23 as the third surface of the inspection object 2 from the carry-in area of the inspection object 2 are the photographing areas of the third camera 13. It is a computer program that calculates the shooting time from the start of shooting to the end of shooting for the third camera 13 based on the arrival time until entering, and controls the third camera 13 to shoot based on the calculation result.

第３撮影プログラムは、搬送ベルト３０による検査対象物２の搬送速度と、検査対象物２の搬入領域から検査対象物２の第４面としての後側面２４の全体が第４カメラ１４の撮影領域に入るまでの到達時間とにより、第４カメラ１４に対する撮影開始から撮影終了までの撮影時間を演算し、この演算結果に基づき第４カメラ１４を撮影するように制御するコンピュータプログラムである。 In the third photographing program, the conveying speed of the inspection object 2 by the conveying belt 30 and the entire rear side surface 24 as the fourth surface of the inspection object 2 from the carry-in area of the inspection object 2 are the photographing areas of the fourth camera 14. It is a computer program that calculates the shooting time from the start of shooting to the end of shooting for the fourth camera 14 based on the arrival time until entering, and controls the fourth camera 14 to shoot based on the calculation result.

第４撮影プログラムは、搬送ベルト３０による検査対象物２の搬送速度と、検査対象物２の搬入領域から検査対象物２の第５面としての右側面の全体が第５カメラ１５の撮影領域に入るまでの到達時間とにより、第５カメラ１５に対する撮影開始から撮影終了までの撮影時間を演算し、この演算結果に基づき第５カメラ１５を撮影するように制御するコンピュータプログラムである。 In the fourth photographing program, the conveying speed of the inspection object 2 by the conveying belt 30 and the entire right side surface of the inspection object 2 as the fifth surface from the carry-in area of the inspection object 2 become the photographing area of the fifth camera 15. It is a computer program that calculates the shooting time from the start of shooting to the end of shooting for the fifth camera 15 based on the arrival time until entering, and controls the fifth camera 15 to shoot based on the calculation result.

第５撮影プログラムは、搬送ベルト３０による検査対象物２の搬送速度と、検査対象物２の搬入領域から検査対象物２の第６面としての左側面の全体が第６カメラ１６の撮影領域に入るまでの到達時間とにより、第６カメラ１６に対する撮影開始から撮影終了までの撮影時間を演算し、この演算結果に基づき第６カメラ１６を撮影するように制御するコンピュータプログラムである。 In the fifth photographing program, the conveying speed of the inspection object 2 by the conveying belt 30 and the entire left side surface of the inspection object 2 as the sixth surface from the carry-in area of the inspection object 2 become the photographing area of the sixth camera 16. It is a computer program that calculates the shooting time from the start of shooting to the end of shooting for the sixth camera 16 based on the arrival time until entering, and controls the sixth camera 16 to shoot based on the calculation result.

図１に示した物品外観検査装置で検査対象物２の外観を検査する工程について説明する。搬送ベルト３０がモータ３７の動力により矢印で示す搬送方向３８に移動した状態において、検査対象物２の第１面としての表面２１が上を向くように、又、検査対象物２の第２面としての裏面２２が下を向くと共に搬送ベルト３０の上面に接触するように、更に、検査対象物２の第３面としての前側面２３が搬送方向３８の先頭側に向くよう、検査対象物２が作業者或いは搬入機構により搬送ベルト３０の搬入領域に搭載される。搬送ベルト３０の搬入領域が暗箱４６の入口より外部に設定されていれば、検査対象物２の搬入領域への搭載作業が暗箱４６に邪魔されることなく容易になる。 The process of inspecting the appearance of the inspection object 2 with the article appearance inspection apparatus shown in FIG. 1 will be described. In a state where the transport belt 30 is moved in the transport direction 38 indicated by the arrow by the power of the motor 37, the surface 21 as the first surface of the inspection object 2 faces upward, and the second surface of the inspection object 2 Inspected object 2 so that the back surface 22 as the third surface of the inspection object 2 faces downward and contacts the upper surface of the conveying belt 30, and the front side surface 23 as the third surface of the inspection object 2 faces the leading side in the conveying direction 38. Is mounted in the carry-in area of the transport belt 30 by an operator or a carry-in mechanism. If the carry-in area of the transport belt 30 is set to the outside from the entrance of the dark box 46, the work of mounting the inspection object 2 in the carry-in area becomes easy without being disturbed by the dark box 46.

次に、読取器３９が搬入領域に搭載された検査対象物２の識別情報５１を読み取ってデータ処理装置３に出力する。その後、検査対象物２が搬入領域から第４ローラ３４の側に運搬され、この運搬された検査対象物２の第１面としての表面２１の全体が第１カメラ１１の撮影領域に入ると、第１カメラ１１が検査対象物２の第１面としての表面２１の全体を撮影した画像データをデータ処理装置３に出力する。第１カメラ１１での撮影を終えた検査対象物２が搬送ベルト３０で第４ローラ３４の側に運搬される。 Next, the reader 39 reads the identification information 51 of the inspection object 2 mounted in the carry-in area and outputs it to the data processing device 3. After that, when the inspection object 2 is transported from the carry-in area to the side of the fourth roller 34 and the entire surface 21 of the transported inspection object 2 as the first surface enters the photographing area of the first camera 11. The first camera 11 outputs image data obtained by photographing the entire surface 21 as the first surface of the inspection object 2 to the data processing device 3. The inspection object 2 that has been photographed by the first camera 11 is transported to the side of the fourth roller 34 by the transport belt 30.

そして、図２において、実線で示した検査対象物２の重心が第４ローラ３４よりも第３ローラ３３の側に位置しているものの、実線で示した検査対象物２の第３面としての前側面２３の全体が搬送ベルト３０の第４ローラ３４に掛け渡された部分よりも搬送方向３８の前側に突出して搬送ベルト３０より前側に離れて第２カメラ１２の撮影領域に入ると、第３カメラ１３が搬送ベルト３０を撮影することなく避けて検査対象物２の第３面としての前側面２３の全体を撮影した画像データをデータ処理装置３に出力する。 Then, in FIG. 2, although the center of gravity of the inspection object 2 shown by the solid line is located closer to the third roller 33 than the fourth roller 34, it is used as the third surface of the inspection object 2 shown by the solid line. When the entire front side surface 23 protrudes to the front side in the transport direction 38 from the portion hung on the fourth roller 34 of the transport belt 30 and separates from the transport belt 30 to the front side to enter the photographing area of the second camera 12, the second camera 12 is displayed. 3 The camera 13 avoids the transport belt 30 without photographing it, and outputs image data obtained by photographing the entire front side surface 23 as the third surface of the inspection object 2 to the data processing device 3.

引き続き、図２において、第３カメラ１３による撮影の終えた点線で示した検査対象物２の重心が第４ローラ３４よりも搬送方向３８の前側に突出して搬送ベルト３０から離れるのに伴い、検査対象物２が搬送ベルト３０の第４ローラ３４に掛け渡された部分に沿って、検査対象物２の第３面としての前側面２３が検査対象物２の第４面としての後側面２４よりも下方になるように、検査対象物２が傾斜状態になり、遂には、一点鎖線で示した検査対象物２が第３面としての前側面２３を下に向けながら搬送ベルト３０の第４ローラ３４に掛け渡された部分から落下する。 Subsequently, in FIG. 2, as the center of gravity of the inspection object 2 shown by the dotted line after being photographed by the third camera 13 protrudes toward the front side in the transport direction 38 from the fourth roller 34 and separates from the transport belt 30, the inspection is performed. Along the portion where the object 2 is hung on the fourth roller 34 of the transport belt 30, the front side surface 23 as the third surface of the inspection object 2 is from the rear side surface 24 as the fourth surface of the inspection object 2. The inspection object 2 is tilted so as to be downward, and finally, the inspection object 2 indicated by the alternate long and short dash line is the fourth roller of the transport belt 30 with the front side surface 23 as the third surface facing downward. It falls from the part hung on 34.

更に、図２において、一点鎖線で示した検査対象物２が落下するとき、搬送ベルト３０と検査対象物２の第２面としての裏面２２との摩擦により、検査対象物２の第２面としての裏面２２と第３面としての前側面２３との境界領域を構成する縁部２７が搬送ベルト３０の第４ローラ３４と第５ローラ３５との間に配置されて前傾状となった前傾部６１の側に引き込まれ、一点鎖線で示した検査対象物２の第１面としての表面２１と第３面としての前側面２３との境界領域を構成する縁部２８が第２面としての裏面２２と第４面としての後側面２４との境界領域を構成する縁部２７よりも下位となって第５ローラ３５の側に配置され、検査対象物２の第１面としての表面２１が搬送ベルト３０の第５ローラ３５と第６ローラ３６との間に配置された上り勾配斜面部６２の側に向くように、検査対象物２が傾斜状態になる。 Further, in FIG. 2, when the inspection object 2 shown by the alternate long and short dash line falls, the friction between the transport belt 30 and the back surface 22 as the second surface of the inspection object 2 causes the inspection object 2 to be the second surface. The edge portion 27 forming the boundary region between the back surface 22 and the front surface 23 as the third surface is arranged between the fourth roller 34 and the fifth roller 35 of the transport belt 30 and is tilted forward. The edge 28, which is drawn to the side of the inclined portion 61 and forms a boundary region between the surface 21 as the first surface and the front surface 23 as the third surface of the inspection object 2 indicated by the alternate long and short dash line, serves as the second surface. The front surface 21 as the first surface of the inspection object 2 is arranged on the side of the fifth roller 35 below the edge portion 27 forming the boundary region between the back surface 22 and the rear side surface 24 as the fourth surface. The inspection object 2 is in an inclined state so as to face the side of the uphill slope portion 62 arranged between the fifth roller 35 and the sixth roller 36 of the transport belt 30.

そして、図２において、搬送ベルト３０の第４ローラ３４に掛け渡された部分から落下した仮想線で示した検査対象物２は真下にかかる重力とベルト進行速度の慣性により自ら回転して第１面としての表面２１が下向きになり、仮想線で示した検査対象物２の第２面としての裏面２２が上向きになる。すなわち搬送ベルト３０に対する検査対象物２の第１面としての表面２１と第２面としての裏面２２との配置が正反対になるように、検査対象物２が仮想線で示したように反転し、検査対象物２の第１面としての表面２１の全体が搬送ベルト３０の上り勾配斜面部６２に着地する。この着地により、検査対象物２の第２面としての裏面２２が上を向き、検査対象物２の第３面としての前側面２３が搬送ベルト３０の搬送方向３８の後側に向き、検査対象物２の第４面としての後側面２４が搬送ベルト３０の搬送方向３８の前側に向いた状態となる。 Then, in FIG. 2, the inspection object 2 shown by the virtual line dropped from the portion hung on the fourth roller 34 of the transport belt 30 rotates by itself due to the gravity applied directly below and the inertia of the belt traveling speed, and the first The front surface 21 as a surface faces downward, and the back surface 22 as the second surface of the inspection object 2 shown by the virtual line faces upward. That is, the inspection object 2 is inverted as shown by the virtual line so that the arrangement of the front surface 21 as the first surface and the back surface 22 as the second surface of the inspection object 2 with respect to the transport belt 30 is opposite. The entire surface 21 of the inspection object 2 as the first surface lands on the uphill slope portion 62 of the transport belt 30. Due to this landing, the back surface 22 as the second surface of the inspection object 2 faces upward, and the front side surface 23 as the third surface of the inspection object 2 faces the rear side of the transport direction 38 of the transport belt 30, and the inspection target. The rear side surface 24 as the fourth surface of the object 2 faces the front side of the transport belt 30 in the transport direction 38.

更に、図３において、搬送ベルト３０の上り勾配斜面部６２に着地した実線で示した検査対象物２が搬送ベルト３０で搬送方向３８に運搬されるのに伴い、検査対象物２の第２面としての裏面２２の全体が第２カメラ１２の撮影領域に入ると、第２カメラ１２が検査対象物２の第２面としての裏面２２の全体を撮影した画像データをデータ処理装置３に出力し、検査対象物２の第５面としての右側面の全体が第５カメラ１５の撮影領域に入ると、第５カメラ１５が検査対象物２の第５面としての右側面の全体を撮影した画像データをデータ処理装置３に出力し、検査対象物２の第６面としての左側面の全体が第６カメラ１６の撮影領域に入ると、第６カメラ１６が検査対象物２の第６面としての左側面の全体を撮影した画像データをデータ処理装置３に出力する。この第２カメラ１２による撮影順序、第５カメラ１５による撮影順序、第６カメラ１６による撮影順序は、いずれのカメラが先でも後でも又は同時でもよい。 Further, in FIG. 3, as the inspection object 2 shown by the solid line landing on the uphill slope portion 62 of the transfer belt 30 is transported in the transfer direction 38 by the transfer belt 30, the second surface of the inspection object 2 is transported. When the entire back surface 22 as the second surface enters the photographing area of the second camera 12, the second camera 12 outputs the image data obtained by photographing the entire back surface 22 as the second surface of the inspection object 2 to the data processing device 3. When the entire right side surface of the inspection object 2 as the fifth surface enters the photographing area of the fifth camera 15, the fifth camera 15 photographs the entire right side surface of the inspection object 2 as the fifth surface. When the data is output to the data processing device 3 and the entire left side surface of the inspection object 2 as the sixth surface enters the photographing area of the sixth camera 16, the sixth camera 16 serves as the sixth surface of the inspection object 2. The image data obtained by photographing the entire left side surface of the above is output to the data processing device 3. The shooting order by the second camera 12, the shooting order by the fifth camera 15, and the shooting order by the sixth camera 16 may be any camera first, second, or at the same time.

引き続き、図３において、第２カメラ１２による撮影、第５カメラ１５による撮影、第６カメラ１６による撮影の終えた検査対象物２が搬送ベルト３０で第６ローラ３６の側に運搬される。そして、点線で示した検査対象物２の重心が第６ローラ３６よりも第５ローラ３５の側に配置されているものの、点線で示した検査対象物２の第４面としての後側面２４の全体が搬送ベルト３０の第６ローラ３６に掛け渡された部分よりも搬送方向３８の前側に突出して搬送ベルト３０より前側に離れて第４カメラ１４の撮影領域に入ると、第４カメラ１４が搬送ベルト３０を撮影することなく避けて検査対象物２の第４面としての後側面２４の全体を撮影した画像データをデータ処理装置３に出力する。 Subsequently, in FIG. 3, the inspection object 2 that has been photographed by the second camera 12, photographed by the fifth camera 15, and photographed by the sixth camera 16 is transported to the side of the sixth roller 36 by the transport belt 30. Although the center of gravity of the inspection object 2 shown by the dotted line is arranged closer to the fifth roller 35 than the sixth roller 36, the rear side surface 24 as the fourth surface of the inspection object 2 shown by the dotted line When the whole protrudes to the front side in the transport direction 38 from the portion hung on the sixth roller 36 of the transport belt 30 and separates from the transport belt 30 to the front side to enter the shooting area of the fourth camera 14, the fourth camera 14 moves. The image data obtained by photographing the entire rear side surface 24 as the fourth surface of the inspection object 2 without photographing the transport belt 30 is output to the data processing device 3.

そして、図３において、第４カメラ１４による撮影の終えた検査対象物２の重心が第６ローラ３６よりも搬送方向３８の前側に突出するのに伴い、検査対象物２が第６ローラ３６の外周面に沿って、検査対象物２の第４面としての後側面２４が検査対象物２の第３面としての前側面２３よりも下方になるように、検査対象物２が傾斜状態になり、遂には、仮想線で示した検査対象物２の第１面としての表面２１の全体が搬送ベルト３０の下り勾配傾斜部５３に接触して搭載され、この仮想線で示した検査対象物２が搬送ベルト３０で運搬されて搬出領域に到達する。搬出領域に到達した検査対象物２は作業者又は搬出機構によりベルトコンベア１並びに暗箱４６から外部に取り出される。 Then, in FIG. 3, as the center of gravity of the inspection object 2 that has been photographed by the fourth camera 14 projects to the front side in the transport direction 38 from the sixth roller 36, the inspection object 2 of the sixth roller 36 The inspection object 2 is inclined so that the rear side surface 24 as the fourth surface of the inspection object 2 is lower than the front side surface 23 as the third surface of the inspection object 2 along the outer peripheral surface. Finally, the entire surface 21 as the first surface of the inspection object 2 shown by the virtual line is mounted in contact with the downward slope inclined portion 53 of the transport belt 30, and the inspection object 2 shown by the virtual line is mounted. Is transported by the transport belt 30 and reaches the carry-out area. The inspection object 2 that has reached the carry-out area is taken out from the belt conveyor 1 and the dark box 46 by an operator or a carry-out mechanism.

１ ベルトコンベア
２ 検査対象物
３ データ処理装置
４ ＡＩ
５ 外観評価データ
６ 撮影プログラム
７ 表示装置
８ サーバ
９ 損傷判定基準データ
１０ データ作成手段
１１ 第１カメラ
１２ 第２カメラ
１３ 第３カメラ
１４ 第４カメラ
１５ 第５カメラ
１６ 第６カメラ
３０ 搬送ベルト
３１ 第１ローラ
３２ 第２ローラ
３３ 第３ローラ
３４ 第４ローラ
３５ 第５ローラ
３６ 第６ローラ
３７ モータ
３８ 搬送方向
３９ 読取器
４１ 第１折れ曲がり搬送路
４２ 第２折れ曲がり搬送路
４３ 逃げ空間
４６ 暗箱
４７ 払拭器
５１ 識別情報
５２ 品質判定値
６１ 前傾部
６２ 上り勾配斜面部
６３ 下り勾配斜面部 1 Belt conveyor 2 Inspection object 3 Data processing device 4 AI
5 Appearance evaluation data 6 Shooting program 7 Display device 8 Server 9 Damage judgment standard data 10 Data creation means 11 1st camera 12 2nd camera 13 3rd camera 14 4th camera 15 5th camera 16 6th camera 30 Conveyance belt 31 1 Roller 32 2nd Roller 33 3rd Roller 34 4th Roller 35 5th Roller 36 6th Roller 37 Motor 38 Transport Direction 39 Reader 41 1st Bent Transport Path 42 2nd Bent Transport Path 43 Escape Space 46 Dark Box 47 Wipe 51 Identification information 52 Quality judgment value 61 Forward tilted part 62 Uphill slope part 63 Downhill slope part

Claims (11)

ベルトコンベアで搬送される検査対象物の外観をカメラ１１乃至１６で撮影して検査対象物の外観を検査する物品外観検査装置であって、検査対象物２に対する衝撃吸収機能を有する材料からなると共に複数のローラで左右方向及び上下方向への移動軌跡を描く無端状に形成された単一の搬送ベルトと、この搬送ベルトによる搬送路に前記複数のローラとは別の複数のローラで上下方向の高低差を有するように構成された第１折れ曲がり搬送路と、この第１折れ曲がり搬送路の上流において反転されていない前記検査対象物の第１面の全体を撮影した画像データをデータ処理装置に出力する第１カメラと、前記第１折れ曲がり搬送路の下流において反転された前記検査対象物の第２面の全体を撮影した画像データをデータ処理装置に出力する第２カメラとを備えたことを特徴とする物品外観検査装置。 An article appearance inspection device that inspects the appearance of an inspection object by photographing the appearance of the inspection object conveyed by a belt conveyor with cameras 11 to 16, and is made of a material having a shock absorbing function for the inspection object 2. A single transport belt formed in an endless shape that draws a movement trajectory in the left-right direction and the up-down direction with a plurality of rollers, and a plurality of rollers other than the plurality of rollers in the transport path formed by the transport belt in the vertical direction. The first bent transport path configured to have a height difference and the image data obtained by photographing the entire first surface of the inspection object which is not inverted upstream of the first bent transport path are output to the data processing device. It is characterized by including a first camera for outputting the image data obtained by photographing the entire second surface of the inspection object inverted downstream of the first bent conveyor path, and a second camera for outputting the image data to the data processing device. Article appearance inspection device. 前記第１折れ曲がり搬送路の上流において反転されていない前記検査対象物の第３面の全体を撮影した画像データをデータ処理装置に出力する第３カメラを備えたことを特徴とする請求項１記載の物品外観検査装置。 The first aspect of claim 1, wherein the third camera is provided to output image data obtained by photographing the entire third surface of the inspection object which is not inverted upstream of the first bent transport path to a data processing device. Article appearance inspection equipment. 前記搬送ベルトによる搬送路に前記複数のローラとは別の複数のローラで上下方向の高低差を有するように上側に突出する凸状になった第２折れ曲がり搬送路を設け、この第２折れ曲がり搬送路の頂上部において反転された前記検査対象物の第４面の全体を撮影した画像データをデータ処理装置に出力する第４カメラを備えたことを特徴とする請求項１記載の物品外観検査装置。 A second bent transport path having a convex shape protruding upward so as to have a height difference in the vertical direction is provided on the transport path by the transport belt with a plurality of rollers other than the plurality of rollers, and the second bent transport path is provided. The article appearance inspection apparatus according to claim 1, further comprising a fourth camera that outputs image data obtained by photographing the entire fourth surface of the inspection object inverted at the top of the road to a data processing apparatus. .. 前記第１折れ曲がり搬送路の下流において反転された前記検査対象物の第５面の全体を撮影した画像データをデータ処理装置に出力する第５カメラを備えたことを特徴とする請求項１記載の物品外観検査装置。 The first aspect of claim 1, wherein the fifth camera is provided, which outputs image data obtained by photographing the entire fifth surface of the inspection object inverted downstream of the first bent transport path to a data processing device. Article appearance inspection device. 前記第１折れ曲がり搬送路の下流において反転された前記検査対象物の第６面の全体を撮影した画像データをデータ処理装置に出力する第６カメラを備えたことを特徴とする請求項１記載の物品外観検査装置。 The first aspect of claim 1, wherein the sixth camera is provided to output image data obtained by photographing the entire sixth surface of the inspection object inverted downstream of the first bent transport path to a data processing device. Article appearance inspection device. 前記データ処理装置には、前記搬送ベルトによる前記検査対象物の搬送速度と、前記検査対象物の搬入領域から前記検査対象物の第１面の全体が前記第１カメラの撮影領域に入るまでの到達時間と、前記検査対象物の搬入領域から前記検査対象物２の第２面の全体が前記第２カメラの撮影領域に入るまでの到達時間とにより、前記第１カメラ及び前記第２カメラを撮影するように制御する撮影プログラムが設けられたことを特徴とする請求項１記載の物品外観検査装置。 In the data processing device, the transport speed of the inspection target by the transport belt and the entire first surface of the inspection target from the carry-in area of the inspection target to the imaging region of the first camera. The first camera and the second camera are determined by the arrival time and the arrival time from the carry-in area of the inspection object until the entire second surface of the inspection object 2 enters the photographing area of the second camera. The article appearance inspection device according to claim 1, wherein a photographing program for controlling the image is provided. 前記データ処理装置には、前記搬送ベルトによる前記検査対象物の搬送速度と、前記検査対象物の搬入領域から検査対象物の第３面の全体が前記第３カメラの撮影領域に入るまでの到達時間とにより、前記第３カメラを撮影するように制御する撮影プログラムが設けられたことを特徴とする請求項２記載の物品外観検査装置。 The data processing device reaches the transport speed of the inspection target by the transport belt and the arrival of the entire third surface of the inspection target from the carry-in area of the inspection target to the imaging region of the third camera. The article appearance inspection apparatus according to claim 2, wherein a photographing program for controlling the third camera to be photographed is provided depending on the time. 前記データ処理装置には、前記搬送ベルトによる前記検査対象物の搬送速度と、前記検査対象物の搬入領域から前記検査対象物の第４面の全体が前記第４カメラの撮影領域に入るまでの到達時間とにより、前記第４カメラを撮影するように制御する撮影プログラムが設けられたことを特徴とする請求項３記載の物品外観検査装置。 In the data processing device, the transport speed of the inspection target by the transport belt and the entire fourth surface of the inspection target from the carry-in area of the inspection target to the imaging region of the fourth camera. The article appearance inspection apparatus according to claim 3, wherein a photographing program for controlling the fourth camera to be photographed according to the arrival time is provided. 前記データ処理装置には、前記搬送ベルトによる前記検査対象物の搬送速度と、前記検査対象物の搬入領域から前記検査対象物の第５面の全体が前記第５カメラの撮影領域に入るまでの到達時間とにより、前記第５カメラを撮影するように制御する撮影プログラムが設けられたことを特徴とする請求項４記載の物品外観検査装置。 In the data processing device, the transport speed of the inspection target by the transport belt and the entire fifth surface of the inspection target from the carry-in area of the inspection target to the imaging region of the fifth camera. The article appearance inspection apparatus according to claim 4, wherein a photographing program for controlling the fifth camera to be photographed according to the arrival time is provided. 前記データ処理装置には、前記搬送ベルトによる前記検査対象物の搬送速度と、前記検査対象物の搬入領域から前記検査対象物の第６面の全体が前記第６カメラの撮影領域に入るまでの到達時間とにより、前記第６カメラを撮影するように制御する撮影プログラムが設けられたことを特徴とする請求項５記載の物品外観検査装置。 In the data processing device, the transport speed of the inspection target by the transport belt and the entire sixth surface of the inspection target from the carry-in area of the inspection target to the imaging region of the sixth camera. The article appearance inspection apparatus according to claim 5, wherein a photographing program for controlling the sixth camera to be photographed according to the arrival time is provided. 前記データ処理装置に前記ベルトコンベアで搬送される前記検査対象物の識別情報が入力され、前記データ処理装置が前記複数のカメラから受け取った画像データから推論又は解析した品質判定値とこの品質判定値に対応する検査対象物の識別情報とを関連付けた検査結果としての外観評価データ作成することを特徴とする請求項１乃至１１の１つに記載の物品外観検査装置。 The identification information of the inspection object conveyed by the belt conveyor is input to the data processing device, and the quality judgment value and the quality judgment value inferred or analyzed from the image data received by the data processing device from the plurality of cameras. The article appearance inspection apparatus according to one of claims 1 to 11, wherein appearance evaluation data as an inspection result associated with identification information of an inspection object corresponding to the above is created.
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Publication number Priority date Publication date Assignee Title
JPS55107908A (en) * 1979-02-09 1980-08-19 Nec Corp Automatic tester for surface of flat circular piece
JPS6169616A (en) * 1984-09-08 1986-04-10 Ikegami Tsushinki Co Ltd Ic test device
JPH08240538A (en) * 1995-03-01 1996-09-17 Mitsubishi Cable Ind Ltd O ring inspection device
JPH09288061A (en) * 1996-04-19 1997-11-04 Ikegami Tsushinki Co Ltd Method and apparatus for inspecting external appearance of small article
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