Abstract:
This application relates to an apparatus and method for automated inspection of formed metal containers. More specifically, it pertains to the use of machine vision systems to identify and correlate manufacturing defects occurring in formed food and beverage containers to specific manufacturing paths or sources of origin (e.g., body makers) used in the container forming process. The disclosed invention is enabled by the placement of a machine-readable code on specific portions of the can body during the forming process and the use of illumination exposure techniques.
Abstract:
This application relates to an apparatus (Fig. 3) and method for providing patterned illumination fields for use within process control and article inspection applications. More specifically, it pertains to the use of patterned illuminators (90, 110) to enable visual surface inspection of polished objects (30)such as ball bearings. The use of patterned illuminators properly disposed in relation to a polished part under inspection allows small surface imperfections such as scratches and pits to become visible against the normal surface background. The use of carefully engineered illuminators facilitates advantageous defect-site scattering from generally dark field sources. The patterned nature of the illuminators defined by this invention allows the complete surface (55) of three-dimensional parts to be effectively highlighted using dark field illumination fields.
Abstract:
These adjustments can be realized through manipulation of graphical elements on the display or through manipulation of a threshold line, such as threshold line (203). The vertical bars that exceed line (203), like (205), are turned red (not shown) instead of the normal green color (not shown) of the bars (202) that do not exceed line (203). The "Y" axis or vertical axis of the graph (204) represents sensitivity. In one form, for example, sensitivity may relate to grey scale data. The "X" axis (20) represents individual parts in a time sequence with forward time moving in the direction of (206). Two variables were chosen for this graphical display to maximize ease of use but more could be incorporated if the application dictates. The user adjustable parameter settings on this graphical interface are the defects scale (212) and the sensitivity bar (203). Of course, if more adjustable parameters are desired, additional scales could be incorporated into the display or screen, for example. In order to change the sensitivity adjustment (203), the user would click and hold his pointing device on line (203) and drag it up or down depending on which way he wants to go with the sensitivity adjustment.
Abstract:
This application relates to an apparatus and method for automated inspection of formed metal containers. More specifically, it pertains to the use of machine vision systems to identify and correlate manufacturing defects occurring in formed food and beverage containers to specific manufacturing paths or sources of origin (e.g., body makers) used in the container forming process. The disclosed invention is enabled by the placement of a machine- readable code on specific portions of the can body during the forming proces s and the use of illumination exposure techniques.
Abstract:
This application relates to an apparatus and method for automated inspection of formed metal containers. More specifically, it pertains to the use of machine vision systems to identify and correlate manufacturing defects occurring in formed food and beverage containers to specific manufacturing paths or sources of origin (eg., body makers) used in the container forming process. The disclosed invention is enabled by the placement of a machine-readable code on specific portions of the can body during the forming process and the use of illumination exposure techniques.
Abstract:
La invencion proporciona para una interfaz de usuario grafica la cual proporciona para cada una de las formas simples e intuitivas de cambiar parametros de inspeccion sencillos o multiples. El visualizador grafico muestra inmediatamente que el resultado de monitoreo o inspeccion pudo haber sido si el cambio efectuado hubiera estado en el lugar durante la inspeccion de las ultimas partes "N". Esta "revision" grafica retrospectiva invoca inmediatamente reinspeccion facilitando una estimacion de cuales seran los resultados futuros de la inspeccion o monitoreo de proceso si la produccion futura parece similar a la ultima produccion reciente. Los resultados de reinspeccion se muestran inmediatamente con una combinacion de visualizacion para facilidad de entendimiento y optimizacion de configuracion. La visualizacion tambien muestra datos seleccionados demas asociados para cada inspeccion especifica para facilidad de procesos de rastreo y de optimizacion de produccion.
Abstract:
A system and method for inspecting metal beverage containers (10) includes an ellipsoidal mirror (32) above the container (10). Above the ellipsoidal mirror (32) is an image splitting mirror (52) which presents two images to a first camera (42) and a second camera (62). The first camera (42) views the upper interior portion (15) of the container (10) and the second camera (62) views the flange (14) of the container (10). An image combiner (70) electro-optically combines the two images to produce a composite image of substantially the entire upper interior portion of the container (10) which is analyzed for defects. A third camera (142) is located at a separate location for viewing lower interior portion (12) of the container (10) with a computer (170) receiving the image from the third camera (142) and analyzing the image for defects.