Yarn Processing Facility With Predictive Unwinding Control
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Solution Overview
Problem
Existing yarn processing facilities face challenges in efficiently managing yarn supply and production operations, leading to potential shortages and inconsistencies in wound package quality due to the lack of precise prediction and management of yarn unwinding times and amounts.
Innovation Solution
A yarn processing facility equipped with an information management unit that tracks initial yarn amounts, unwinding speeds, and start times, allowing for precise prediction of yarn end times and remaining amounts, and includes a conveyance device to ensure timely replacement of empty supply packages, thereby preventing shortages and ensuring consistent winding operations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If weight sensors are added to measure yarn supply package weight for acquiring initial amount information, then measurement precision of yarn amount is improved, but device complexity and cost increase
Solution Approach 1:
The patent uses information copying from operation settings and sensor data about unwinding speed to create virtual representations of yarn amount consumption over time. Instead of directly measuring yarn weight, the system creates a computational model that copies and processes operational parameters to predict remaining yarn amounts, avoiding the need for complex weight measurement systems.
Solution Approach 2:
The patent replaces mechanical weight measurement systems with an information processing approach. By substituting physical sensors that directly measure yarn weight with a computational system that calculates yarn consumption based on unwinding speed and operational time, the system achieves measurement precision without mechanical complexity.
2Productivity
If real-time monitoring of yarn unwinding amount is implemented, then productivity management is improved, but device complexity increases
Solution Approach 1:
The system performs self-monitoring by automatically tracking operational parameters such as unwinding speed and time, and using these to calculate remaining yarn amounts. The information management unit serves itself by processing its own operational data without requiring external monitoring equipment, thereby improving productivity management while avoiding additional device complexity.
Solution Approach 2:
The patent implements feedback loops where the information management unit continuously monitors operational parameters, calculates yarn consumption, and uses this information to predict when yarn supply will be depleted. This feedback mechanism enables real-time productivity management by providing ongoing information about yarn status without requiring complex external monitoring systems.
3Loss of time
If multiple yarn supply packages are managed with connection between terminal and start ends, then loss of time due to interruptions is reduced, but difficulty of detecting and measuring yarn status increases
Solution Approach 1:
The patent applies preliminary action by pre-connecting terminal portions of yarn from one supply package to start ends of yarn in subsequent packages before production begins. This advance preparation eliminates interruptions during production, as the system is already configured to automatically transition between packages without requiring real-time detection or manual intervention when yarn is depleted.
Solution Approach 2:
The patent segments the yarn supply into multiple pre-connected packages, where each package represents a discrete unit with known initial amounts and unwinding characteristics. This segmentation allows the information management unit to track and predict the status of each segment independently, simplifying the overall monitoring task while enabling continuous supply through pre-established connections between segments.
Data Source
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AI summary
A yarn processing facility which is able to significantly improve production management is provided. An information management unit 110 of a yarn processing facility 100 is able to acquire initial amount information regarding an initial amount of a yarn Y in a yarn supply package Ps before the start of unwinding of the yarn Y, an unwinding unit amount information regarding an amount of the yarn Y unwound from the yarn supply package Ps per unit the, and unwinding unit amount information regarding an unwinding start time at which the unwinding of the yarn Y from the yarn supply package Ps starts. By performing a calculation using these sets of information, it is possible to, for example, precisely predict a timing of the end of the unwinding of the yarn Y from the yarn supply package Ps and to regularly estimate the progress of the unwinding of the yarn Y.