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Machine Vision Inspection of Polymeric Traypack Seal Areas

机译:聚合物汕带密封区的机器视觉检测

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This report documents experimental results of a modified production Machine Vision Inspection system for the polymeric traypack. The traypack is a replacement for the group feeding metal traycan. Polymeric traypacks are heat sealed with a foil laminate, film lid. Seal area contamination during filling and handling before sealing can be expected in polymeric traypacks. Since entrapped matter can lead to open seals, defects, and seal anomalies, a method of measurement for seal area contamination is useful in quantifying effects of filler changes, line speeds, and product formulations. Proper lighting was the most important factor in achieving accurate results. The unit was 96% effective at detecting small areas of opaque contamination after lighting changes were made. Experimental contaminates used were creamed ground beef, beef stew and water. Offset, diffuse lighting yielded significantly improved results for the products tested compared to the integrated, direct strobe light. Additional fine-tuning will be required to obtain 90+% effectiveness with water.

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