Application-specific repeat defect detection in web manufacturing processes

A defect detection and web technology, applied in the inspection of textile materials, optical testing of flaws/defects, measuring devices, etc., can solve the problems of no inspection, incorrect roll assumption diameter, etc., to achieve simpler and more robust maintenance, simpler and more Effects of Robust Manufacturing Processes

Active Publication Date: 2012-11-21
3M INNOVATIVE PROPERTIES CO
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Since the replacement is not documented and the assumed diameter of the roll is incorrect, process operators ...

Method used

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  • Application-specific repeat defect detection in web manufacturing processes
  • Application-specific repeat defect detection in web manufacturing processes
  • Application-specific repeat defect detection in web manufacturing processes

Examples

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Embodiment Construction

[0066] figure 1 is a block diagram showing a global network environment 2 in which a conversion control system 4 controls the conversion of webs. More specifically, web mills 6A-6M ("web mills 6") represent the production and delivery of web in the form of web rolls 7 between each other and the delivery of finished web rolls 10 to conversion sites Preparation sites for 8A-8N (switching site 8). The web manufacturing plants 6 may be geographically distributed, each of which may include one or more production lines. The conversion site 8 may be part of the same entity as the web manufacturing plant 6 . However, in some embodiments, the conversion site 8 is a customer of the finished web roll 10 . The conversion site 8 may purchase finished web rolls 10 from the web fabrication plant 6 and then convert the finished web rolls 10 into individual sheets assembled into products 12 according to grade level. That is, it is possible to select which sheet should be assembled into wh...

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Abstract

Techniques are described for inspecting a web and controlling subsequent conversion of the web into one or more products. A system, for example, comprises an imaging device, an analysis computer and a conversion control system. The imaging device images the web to provide digital information. The analysis computer processes the digital information to identify regions on the web containing anomalies. The conversion control system subsequently analyzes the digital information to determine which anomalies represent actual defects for a plurality of different products. The web inspection system may preferentially apply different application-specific defect detection recipes depending on whether a given anomaly is a repeating or random anomaly.

Description

[0001] Cross references to related patent applications [0002] This patent application claims the benefit of US Provisional Patent Application No. 60 / 312,598, filed March 10, 2010, which is hereby incorporated by reference in its entirety. [0003] This patent application is hereby incorporated by reference into the patent application "Multi-Roller Registered Repeat Defect Detection of a Web Process Line," issued to Floeder et al., Serial No. 12 / 207582, filed September 10, 2008, issued September 14, 2010 as US Patent No. 7,797,133, assigned to the assignee of the present patent application, and incorporated herein by reference in its entirety. technical field [0004] The present invention relates to automated inspection systems, and more particularly to systems for inspecting a moving web. Background technique [0005] Inspection systems for moving web analysis have proven essential to modern manufacturing operations. Industries as diverse as metal fabrication, paper, n...

Claims

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Application Information

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IPC IPC(8): G01N21/89
CPCD06H3/08G01N21/89G01N2021/8917G01N2021/8918G01N21/8915G01N21/8922
Inventor 史蒂文·P·弗洛德詹姆斯·A·马斯特曼史蒂文·R·德雷格卡尔·J·斯凯普斯史蒂文·R·瓦格曼
Owner 3M INNOVATIVE PROPERTIES CO
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