Method and apparatus for detecting the placement of components o

Details Method and apparatus for detecting the placement of components o Method and apparatus for detecting the placement of components o

1987-01-27

1989-06-06

Blum, Theodore M.

Boots, shoes, and leggings

364469, 356429, 83 74, G06F 1520, G06F 1546, G01N 2184, B23Q 1500

Patent

active

048377155

ABSTRACT:
The present invention provides an apparatus for examining a moving web composed of an interconnected plurality of articles to determine a location of a selected component thereof. The apparatus includes an indicating mechanism for providing marker data corresponding to the presence of a selected article. A metering mechanism generates gauge data corresponding to selected incremental lengths along the article in the movement direction of the web. A designating mechanism provides reference data corresponding to a selected reference point on the article, and a locating mechanism detects position data corresponding to a position of a selected component of the article. An evaluating mechanism processes the reference data, location data and gauge data to determine a spaced distance between the component and the reference point. A comparator mechanism determines a difference between the spaced distance and a predetermined acceptance spacing range, and a culling mechanism designates selected articles for which the spaced distance is outside of the acceptance spacing range.

REFERENCES:
patent: 4237539 (1980-12-01), Piovoso et al.
patent: 4456374 (1984-06-01), Langberg
patent: 4490618 (1984-12-01), Cielo
patent: 4603976 (1986-08-01), Fetzer et al.
patent: 4608115 (1986-08-01), Schroth et al.
patent: 4680205 (1987-07-01), Lerner et al.
patent: 4719575 (1988-01-01), Gneuchtel
patent: 4757930 (1988-07-01), Ditto

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