Yarn Threading Unit Layout for Faster Bi-Shrinkage Yarn Handling
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Solution Overview
Problem
The existing yarn threading operation in bi-shrinkage yarn production is labor-intensive and time-consuming, requiring operators to manipulate a heavy suction gun with one hand while maintaining separate yarn paths for different groups of yarns, leading to increased operation time and yarn waste.
Innovation Solution
A yarn threading unit is designed with a protruding yarn threading portion along the edge of a thermal insulation box, allowing operators to wind yarns onto godet rollers using both hands, thereby separating and guiding yarn paths efficiently, reducing operation time and yarn waste.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If an operator holds a suction gun with one hand while holding an instrument for dividing yarns with the other hand to perform yarn threading operation, then the yarn paths can be separated, but the operation becomes extremely burdensome and time-consuming
Solution Approach 1:
A guide roller is introduced as an intermediary device to automatically separate and guide the second group of yarns, eliminating the need for the operator to manually hold both the suction gun and the dividing instrument. The guide roller acts as a mediator that automatically maintains the separation of yarn paths while the operator focuses solely on operating the suction gun.
Solution Approach 2:
The system is designed to automatically separate and guide yarns through the guide roller mechanism without requiring continuous manual intervention. The guide roller self-performs the function of dividing and directing yarns, reducing the operator's burden and allowing the threading operation to proceed more efficiently with less time loss.
2Ease of operation
If the operator maintains separate yarn paths by manual manipulation, then yarn path separation is achieved, but the operation complexity and burden increase significantly
Solution Approach 1:
The guide roller serves as a mechanical intermediary that automatically maintains separate yarn paths between the spinning device and the godet rollers. This intermediary device handles the complexity of path separation, reducing the operational complexity for the operator who no longer needs to manually manage yarn path division.
Solution Approach 2:
The function of separating and guiding yarn paths is extracted from the operator's manual tasks and transferred to the guide roller device. By taking out this specific function from human operation and assigning it to a mechanical component, the overall operation complexity is reduced while maintaining effective yarn path separation.
3Manufacturing precision
If the operator increases operation time to carefully thread yarns, then threading precision can be maintained, but yarn waste increases due to increased suction
Solution Approach 1:
The guide roller acts as a mediator that ensures precise yarn path separation and guidance, allowing for faster threading operations without sacrificing precision. By maintaining accurate yarn separation through the guide roller, the system reduces the time needed for threading while preventing yarn waste that would otherwise occur during prolonged suction operations.
Solution Approach 2:
The guide roller enables continuous and smooth yarn flow with proper separation, allowing the threading operation to proceed more quickly and efficiently. This continuous guidance mechanism reduces interruptions and re-threading needs, thereby maintaining precision while reducing the total operation time and associated yarn waste from prolonged suction.
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
The yarn threading unit facilitates easy and time-efficient operation by allowing both-handed manipulation, significantly reducing operation time and yarn waste in bi-shrinkage yarn production.
Implementation Method 1
a plurality of yarns supplied from a spinning device are suctioned by a suction gun
Implementation Method 2
the first group of yarns are wound onto a plurality of godet rollers each having heating means, while the plurality of yarns being suctioned by a suction gun
Data Source
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AI summary
One can easily perform a yarn threading operation of winding sequentially a first group of yarns onto a plurality of godet rollers while manipulating a suction gun with both hands, and as a result, the time required for such a yarn threading operation can be largely reduced, and a yarn waste generated in the yarn threading operation can be reduced largely in amount. A combined yarn producing device 1 includes: godet rollers 31-35 for heating and drawing a first group of yarns Y1; a thermal insulation box 30 having a box body 38 for accommodating the godet rollers 31-35; and a guide roller 36 for guiding a second group of yarns Y2, thereby doubling the yarns Y1 and the yarns Y2 so as to produce a bi-shrinkage yarn Y3. For such a combined yarn producing device 1, a yarn threading unit 5 is used when performing the yarn threading operation. The yarn threading unit 5 includes: an attachment portion 51 for attaching the yarn threading unit 5 to the box body 38; and a yarn threading portion 52 extending along an edge of the box body 38 closer to the guide roller 36 than the godet rollers 31-35, the yarn threading portion 52 is a member for threading the yarns Y2 are thread therethrough. The yarn threading portion 52 extends at a position protruding beyond end surfaces of the godet rollers 31-35.