Data processing: generic control systems or specific application – Specific application – apparatus or process – Article handling
Reexamination Certificate
2005-02-15
2005-02-15
McClellan, James (Department: 3627)
Data processing: generic control systems or specific application
Specific application, apparatus or process
Article handling
C700S059000
Reexamination Certificate
active
06856859
ABSTRACT:
Control processes control cross direction alignment of elements being assembled as work pieces on a manufacturing line fabricating preferably absorbent article products on a continuous substrate web. The method defines a manufacturing line path traversed by the work pieces, defines a reference path along the manufacturing path, and establishes the elements on the work pieces. A camera is mounted along the manufacturing line. An image window of the camera is referenced to the reference path. The camera captures full digitized visual images of work pieces. The camera is part of a vision imaging inspection and control system which inspects and evaluates images of the work pieces, including the cross-direction positions of the elements on the work pieces, against established acceptable positions relative to the reference path. When an element is out of alignment, the control system can display visual cues identifying the elements that are inconsistent with acceptable ranges. The full digitized images can be selectively stored in permanent memory, retrieved from permanent memory, and analyzed off-line. The machines are adjusted to adjust positioning of such elements, thereby directing the elements toward target positions. The invention includes step-wise computer-assisted image analysis methodology in an image analysis system linked to a computer program containing system logic, to identify problem areas of the work pieces, and to provide step-wise implementation methodology which can be implemented automatically but is sometimes implemented through human intervention, for making appropriate adjustments to the process. The invention further comprehends apparatus for implementing the above methods, including machines arrayed in a manufacturing line, control apparatus effective to control cross-direction positioning of work pieces, an image collecting system, a memory system, and an image analysis system.
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Bett Thomas Arthur
Brumm Russell Joseph
Lemery Shawn Timothy
Ungpiyakul Tanakon
Curtin Jeffrey B.
Kimberly--Clark Worldwide, Inc.
McClellan James
Yee Paul Y.
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