JP2006084481A5 - - Google Patents

Claims (3)

被検査体である空瓶の口部天面部，口部側面部，胴部，底部，及び内面部を含む各領域を検査領域として前記空瓶の上方，下方及び周囲を含む各方向からの光学的な検査が可能で且つ生産ライン上の搬送速度に同期して高速回転するロータリー式の検査テーブルを備え、前記検査テーブルの回動軸の周りに周設された透光性部材から成る載置部に各空瓶を正立状態で順次載置して環状の経路に沿って高速搬送させ、各空瓶を自転させることなく前記高速搬送中の各空瓶の欠陥をリアルタイムに全品検査する空瓶の検査システムであって、
前記空瓶の胴部断面形状に対応するリング形状の発光面を有し、前記載置部の下方に配置された前記発光面から前記リング形状の光線束を前記空瓶の底面に対して垂直方向に照射して前記空瓶の胴部の側壁表面から側壁内面に至る胴部側壁部の肉厚部分全域を照明する胴部照明手段と、
前記空瓶の側方に配置され暗い背景を形成するための暗視野形成手段と、
前記空瓶を挟んで前記暗視野形成手段と対向して撮像部が配置され、前記胴部照明手段の発光面からの光線束によって前記胴部側壁の肉厚部分全域を光で満たして前記空瓶の胴部外面に形成されている凹凸部分，印刷絵柄，印刷文字が消失する光学現象を発生させると共に前記暗視野形成手段により背景を暗くした状態で、前記空瓶の胴部を含む領域を第１の検査領域として前記高速搬送中の空瓶を側方から捉えて撮像する胴部検査用撮像手段と、
各光線が平行な光線束を前記空瓶の口部の側方から口部側面に対して照射して前記空瓶の口部を照明する口部検査用照明手段と、
前記空瓶の口部を挟んで前記口部検査用照明手段の反対側に撮像部が配置され、前記口部検査用照明手段の発光面からの光線束によって前記空瓶が照明されている状態で、前記空瓶の口部天面に対して傾斜した角度で前記口部天面の斜め上方から前記空瓶の口部天面及びその内面を含む口部領域を第２の検査領域として捉えて撮像する口部検査用撮像手段と、
前記胴部検査用撮像手段からの画像信号を処理して前記空瓶の胴部の傷を含む欠陥を検査すると共に、前記口部検査用撮像手段からの画像信号を処理して前記空瓶の口部天面，その外周と内周の輪郭部分，及び口部内面の欠けを含む欠陥を検査する検査手段
とを備えたことを特徴とする空瓶の検査システム。 Optical from each direction including above, below and around the above-mentioned empty bottle, with each area including the mouth top surface, mouth side surface, body, bottom, and inner surface of the empty bottle to be inspected. A rotary type inspection table that can be inspected and rotated at high speed in synchronism with the transport speed on the production line, and is composed of a translucent member that is provided around a rotation axis of the inspection table. The empty bottles are sequentially placed in an upright position on the unit, and are transported at high speed along an annular path, and the empty bottles that are being transported at high speed are inspected for defects in real time without rotating each empty bottle in real time. A bottle inspection system,
It has a ring-shaped light emitting surface corresponding to the cross-sectional shape of the body portion of the empty bottle, and the ring-shaped light bundle is perpendicular to the bottom surface of the empty bottle from the light emitting surface arranged below the mounting portion. A body illuminating means for illuminating the entire thick portion of the body side wall from the side wall surface of the body of the empty bottle to the inner surface of the side wall by irradiating in the direction;
Dark field forming means disposed on the side of the empty bottle to form a dark background;
Wherein the sides of the empty bottle dark field forming means opposite to be arranged imaging unit, and meet in the light of the thicker portion the whole area of the barrel side wall by the ray bundle from the light emitting surface of the barrel illuminating means An area including the body portion of the empty bottle in a state where an uneven phenomenon formed on the outer surface of the body portion of the empty bottle, a printed pattern, and an optical phenomenon in which printed characters disappear, and the background is darkened by the dark field forming means. a first body portion for inspection imaging means for imaging captured from the side of the empty bottles in the high-speed conveyor as an inspection area,
Illuminating means for mouth inspection for illuminating the mouth part of the empty bottle by irradiating the side of the mouth part from the side of the mouth part of the empty bottle with a bundle of rays parallel to each other,
An imaging unit is arranged on the opposite side of the mouth inspection illumination unit across the mouth of the empty bottle, and the empty bottle is illuminated by a light beam from the light emitting surface of the mouth inspection illumination unit Then, the mouth region including the mouth top surface and the inner surface of the empty bottle from the obliquely upper side of the mouth top surface at an angle inclined with respect to the mouth top surface of the empty bottle is regarded as a second inspection region. Imaging means for mouth inspection for imaging,
The image signal from the body inspection imaging means is processed to inspect defects including scratches on the body of the empty bottle, and the image signal from the mouth inspection imaging means is processed to process the image of the empty bottle. An inspection system for an empty bottle, comprising an inspection means for inspecting a defect including a mouth top surface, contour portions of the outer periphery and inner periphery thereof, and chipping of the inner surface of the mouth . 前記空瓶の口部断面形状に対応するリング形状の発光面を有し、前記載置部の上方に配置された前記発光面から前記口部断面形状に対応するリング形状の光線束を前記空瓶の口部天面に対して垂直方向に照射して前記空瓶の口部の側壁表面から側壁内面に至る口部側壁部分全域を照明する口部照明手段を更に備え、前記胴部検査用撮像手段は、前記胴部照明手段の発光面からの光線束及び前記口部照明手段の発光面からの光線束によって前記空瓶の口部及び胴部を含む側壁の肉厚部分全域が光で満たされている状態で前記第１の検査領域を撮像するようにしている請求項１に記載の空瓶の検査システム。 A ring-shaped light emitting surface corresponding to the mouth cross-sectional shape of the empty bottle is provided, and a ring-shaped light beam corresponding to the mouth cross-sectional shape is emitted from the light-emitting surface disposed above the mounting portion. It further comprises mouth illumination means for illuminating the entire side wall portion of the mouth from the side wall surface of the mouth of the empty bottle to the inner surface of the side wall by irradiating perpendicularly to the top of the mouth of the bottle . The image pickup means is configured such that the entire thickness portion of the side wall including the mouth and body of the empty bottle is light by the light bundle from the light emitting surface of the body illuminating means and the light bundle from the light emitting surface of the mouth illuminating means. The empty bottle inspection system according to claim 1 , wherein the first inspection area is imaged in a filled state. 前記透光性部材から成る載置部が、乱反射を防止するフィルタ機能を有する硬質の透明板で形成されている請求項１又は２に記載の空瓶の検査システム。The empty bottle inspection system according to claim 1 or 2, wherein the placing portion made of the translucent member is formed of a hard transparent plate having a filter function for preventing irregular reflection.