Yarn Guide Balloon Adjustment for Smooth Unwinding
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Solution Overview
Problem
The unwinding of yarn from a supply package forms a balloon due to rotation and centrifugal force, leading to unstable balloon shapes, which can cause irregular yarn feeding and potential smoothness issues as the package diameter decreases.
Innovation Solution
A work robot with a balloon adjustment device that decreases the distance between the yarn supply package and the yarn guide, allowing for controlled balloon shape management through movement of either the supply package or guide, ensuring smooth yarn unwinding.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the yarn supply package is left stationary during unwinding, then the structure is simple, but the balloon shape becomes unstable and yarn unwinding smoothness deteriorates
Solution Approach 1:
The patent applies the dynamics principle by making the yarn supply package position adjustable during unwinding. The balloon adjustment device moves the yarn supply package closer to the yarn guide as unwinding progresses, dynamically adapting the balloon shape to maintain stability. This transforms a static system into a dynamic one that can respond to changing unwinding conditions, resolving the contradiction between maintaining simple structure and ensuring reliable smooth unwinding.
2Stability of the object's composition
If the distance between yarn supply package and yarn guide is decreased during unwinding, then the balloon shape stability is improved, but the device complexity increases
Solution Approach 1:
The balloon adjustment device implements dynamic position adjustment of the yarn supply package, moving it closer to the yarn guide as unwinding progresses. This dynamic adaptation stabilizes the balloon shape by maintaining an optimal distance relationship, resolving the contradiction between improving balloon stability and avoiding excessive device complexity.
Solution Approach 2:
The patent changes the positional parameter of the yarn supply package during the unwinding process. By adjusting the distance between the yarn supply package and yarn guide based on unwinding progress, the system maintains optimal balloon shape parameters, resolving the contradiction between stability improvement and device complexity.
3Adaptability or versatility
If a separate yarn supply cart is used, then the yarn supply function is independent, but the system complexity and cost increase
Solution Approach 1:
The patent makes the work robot universal by equipping it with both yarn supply functions and balloon adjustment functions. Instead of using a separate specialized cart for yarn supply, the same work robot performs multiple tasks including supplying yarn packages and adjusting balloon shapes during unwinding. This multi-functionality reduces system complexity and cost while maintaining adaptability.
Solution Approach 2:
The patent merges the yarn supply function and balloon adjustment function into a single work robot system. By combining these previously separate functions into one integrated robot, the system reduces overall complexity and eliminates the need for separate specialized equipment, while maintaining the versatility needed for different operational requirements.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
This solution ensures consistent and smooth yarn unwinding by controlling the balloon shape, maintaining yarn supply continuity and reducing costs by using a common configuration for multiple processing positions.
Implementation Method 1
The yarn unwound from the yarn supply package forms a balloon just downstream of the yarn supply package due to the rotation and centrifugal force
Data Source
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AI summary
[Problem to be solved] To ensure stable and smooth unwinding of yarn from the yarn supply package. [Solution] A drawing and false twisting machine 1 includes a peg 12 on which a yarn supply package 5 wound with yarn 3, which is POY, can be set; a processing position 35 where the yarn 3 from the yarn supply package 5 set on the peg 12 is processed to form a wind package; and a yarn guide that guides the yarn 3 toward the processing position 35 at a downstream end of a balloon formed by the yarn 3 unwound from the yarn supply package 5 set on the peg 12. The yarn supply cart 50 is a work robot that performs work for the drawing and false twisting machine 1. The yarn supply cart 50 includes a yarn supply package position adjustment device 57 that moves at least one of the yarn supply package 5 from which the yarn 3 is being unwound and the yarn guide 13 to decrease the distance between the yarn supply package 5 and the yarn guide 13 as the unwinding of the yarn 3 from the yarn supply package 5 progresses.