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Method of and means for inspecting workpieces traveling along a production line

  • US 4,758,888 A
  • Filed: 02/17/1987
  • Issued: 07/19/1988
  • Est. Priority Date: 02/17/1987
  • Status: Expired due to Term
First Claim
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1. A method for inspecting individual workpieces progressing along a production line comprising the steps of:

  • (a) on-line inspecting the workpieces at an upstream inspection station to detect possible flaws without interrupting a progression of the workpieces along said production line;

    (b) imaging possible flaws in inspected workpieces;

    (c) storing images of possible flaws in a memory in a way that associates a stored image with the workpiece containing the possible flaw;

    (d) retrieving a stored image from the memory before the workpiece with which the image is associated reaches a downstream sorting station;

    (e) displaying the retrieved image on a monitor for verifying, by visual inspection, whether the possible flaw in the workpiece with which the retrieved image is associated, is valid; and

    (f) diverting workpieces at said downstream sorting station in response to verification of flaws.

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