Loom Information Display Device for Warp Defect Analysis
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Solution Overview
Problem
Current methods for displaying changes in weaving-related members on a loom, such as warp tension and shedding amount, do not allow easy determination of the cause of warp streaks, requiring significant time and effort to identify and adjust the cause of defects in woven fabrics.
Innovation Solution
An information display method and device that associate changes in weaving-related members with the rotation angle of a main shaft, allowing for the formation of line graphs corresponding to specific positions on the fabric, enabling operators to easily determine the cause of defects by displaying changes in tension and shedding amount at precise crank angles.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of information
If changes in weaving-related members are displayed as graphs associated with crank angle, then the information is presented in a structured manner, but it requires significant time and effort to identify the cause of defects
Solution Approach 1:
The patent segments the fabric width into multiple positions and displays separate graphs for each position. This allows operators to directly view the state of weaving-related members at the specific position where a defect occurred, eliminating the need to search through general overview graphs and significantly reducing the time to identify the cause.
Solution Approach 2:
The patent provides localized information by displaying graphs specific to the defect position rather than general fabric-wide data. This local quality approach ensures that the operator receives precisely the information needed for the specific problem location, improving information accessibility without requiring time-consuming analysis of entire fabric data.
2Adaptability or versatility
If general fabric-wide monitoring is implemented, then overall weaving process is visible, but position-specific defect analysis becomes difficult
Solution Approach 1:
The patent divides the fabric width into multiple monitoring positions, each with its own graph displaying weaving-related member changes. This segmentation enables both comprehensive fabric-wide monitoring and precise position-specific analysis, as operators can select and examine graphs for specific defect locations while maintaining awareness of overall weaving status.
Solution Approach 2:
The monitoring system is designed to provide both general overview and specific position analysis through a unified interface. The same graph display mechanism serves dual purposes: showing overall weaving process status and providing detailed position-specific data when a defect occurs, thereby achieving both broad adaptability and precise measurement.
Data Source
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AI summary
In a graph region where changes of a weaving-related member, provided at a loom (1), occurring as weaving is performed is associated with a rotation angle of a main shaft and displayed, a line graph corresponding to a selvage of a fabric is formed on the basis of the rotation angle of the main shaft at which a leading end portion of weft insertion means or a leading end of a weft that is inserted passes the selvage of the fabric, and a line graph corresponding to an arbitrary position at the fabric in a weaving-width direction is formed by determining the rotation angle of the main shaft corresponding to the arbitrary position.