Accession Number : ADA315175

Title :   'Machine Vision Inspection - Pouch Seal Areas'.

Descriptive Note : Final rept. Oct 95-Jun 96,

Corporate Author : RUTGERS - THE STATE UNIV NEW BRUNSWICK NJ

Personal Author(s) : Litman, Neal ; Dunn, Stanley

PDF Url : ADA315175

Report Date : AUG 1996

Pagination or Media Count : 47

Abstract : A preventative element within the process of Horizontal Form-Fill-Seal (HFFS) MRE pouch production is needed to avoid defects due to seal area contamination. In the proposed concept, a machine vision camera is positioned above the formed pouch after the filling operation and just prior to placement of the upper lidstock/sealing station. A seal would be acceptable if there were no product or other contaminant found on any of the four seal areas and the seal process (seal time, temperature, and pressure) was under control. Controlled lab experiments were conducted on MRE pouches produced on the HFFS which showed that common contaminants are detected with sensitivities of 95-100% and without false positives.(specificity of 100%). The worst system performance was found for water (sensitivity 93%, specificity 100%). Based on the laboratory results, a single camera, single pouch, prototype machine vision inspection system was specified, designed, constructed and installed on the CRAMTD HFFS line. The plant-floor system is an enclosed unit constructed by Precision Automation, Cherry Hill, NJ and incorporating an Allen-Bradley Color CVIM module.

Descriptors :   *PRODUCTION ENGINEERING, *CAMERAS, *COMPUTER VISION, *CONTAMINATION, *SEALS(STOPPERS), STATIONS, LABORATORY TESTS, AUTOMATION, PRODUCTION, WATER, TIME, PRECISION, INSPECTION, OPERATION, CONTAMINANTS, LABORATORIES, SEALING COMPOUNDS, FILLING, BAGS.

Subject Categories : Adhesives, Seals and Binders
      Mfg & Industrial Eng & Control of Product Sys
      Photography
      Computer Programming and Software

Distribution Statement : APPROVED FOR PUBLIC RELEASE