Yarn Creel Communication and Visual Guidance for Accurate Loading
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Solution Overview
Problem
Current tufting machines and yarn creels lack real-time communication and data sharing, leading to inefficiencies and increased errors in yarn placement and carpet production, resulting in defective products and reduced productivity.
Innovation Solution
A computer-based tufting machine pattern processing system integrated with electronic sensors, adjustable pressure-sensitive yarn tension, digital camera-based vision systems, and a creel yarn location system for real-time data communication and display, enabling improved yarn management and reduced errors through illuminated and textual/graphic displays, alerts, and data analysis.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If traditional manual creel operations are used, then device complexity is low, but manufacturing precision and productivity are reduced due to errors in yarn placement
Solution Approach 1:
The patent replaces manual mechanical creel operations with an automated electronic system. The creel controller electronically identifies yarn cones, determines their locations, and provides visual guidance to replace them in correct positions, eliminating manual error-prone operations while maintaining manageable system complexity through modular electronic components
Solution Approach 2:
The patent uses visual indicators (lights, displays) to create a digital representation of the desired yarn cone arrangement. The system copies the pattern information and translates it into visual guidance at each creel position, allowing operators to quickly identify and correct placement errors without complex mechanical enforcement
2Productivity
If real-time communication between creel and tufting machine is implemented, then productivity and defect reduction are improved, but device complexity increases
Solution Approach 1:
The patent implements a feedback system where the creel controller continuously monitors yarn cone locations and communicates this information to the tufting machine controller in real-time. The system provides visual feedback indicators at each creel position and transmits data electronically, enabling immediate detection and correction of placement errors to maintain high productivity
Solution Approach 2:
The creel controller performs multiple functions: it identifies yarn cones, determines their locations, controls visual indicators, and communicates with the tufting machine. This multi-functional design consolidates complexity into a single controller rather than requiring separate systems for each function, making the integration more manageable
3Ease of operation
If visual indicators and displays are added to creel positions, then ease of operation is improved, but device complexity and cost increase
Solution Approach 1:
The patent uses color-coded visual indicators (different colored lights) to provide immediate visual feedback about yarn cone placement status. Each creel position has indicators that change color or illuminate to show whether the correct yarn cone is present, making the system easy to operate through intuitive visual cues rather than complex interfaces
Solution Approach 2:
The system provides self-service through automatic identification and visual guidance. The creel controller automatically identifies yarn cones and provides step-by-step visual instructions at each position, eliminating the need for operators to manually track complex patterns or remember placement sequences, thereby simplifying operation despite added electronics
Data Source
AI summary
A communication system is provided for a yarn creel with sensors and displays located throughout the array of yarn positions and communicating with a creel controller to facilitate transfer and display of thread-up information and analysis of operational data.