Rotatable Adapter for Yarn Package Splicing
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Solution Overview
Problem
Existing package exchanging devices face difficulties in easily catching yarn ends on the outer and inner layers of packages, which hinders the guidance of yarns to synthetic yarn splicers.
Innovation Solution
An adapter with a rotatable attachment portion, including a first holding unit for the outer layer yarn end and a second holding unit for the inner layer yarn end, allows for secure gripping and positioning of yarn ends, facilitating their guidance to the splicer.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a conventional package exchanging device is used without an adapter, then the structure remains simple, but it is difficult to catch the yarn ends of the yarns on the outer layer side and the inner layer side of the package
Solution Approach 1:
The adapter is attached to the package in advance, with the first holding unit positioned to hold the yarn end on the outer layer side and the second holding unit positioned to hold the yarn end on the inner layer side before the splicing operation begins. This preliminary positioning makes it easy to catch the yarn ends when needed.
Solution Approach 2:
The adapter acts as an intermediary device between the package and the splicing mechanism. It includes holding units that specifically interact with yarn ends, making them easy to catch and guide to the splicer without modifying the fundamental package structure.
2Length of moving object
If the yarn on the inner layer side is not wound on the outer ring portion, then the bobbin surface remains exposed, but there is insufficient yarn length for splicing operations
Solution Approach 1:
The outer ring portion is disposed to cover the outer peripheral surface of the bobbin, creating a nested structure where the ring protects the bobbin. The yarn on the inner layer side is wound on this outer ring portion, allowing sufficient yarn length to be available while the ring protects the bobbin surface from damage during handling and splicing operations.
3Stability of the object's composition
If the adapter is not rotatable, then the attachment structure is simpler, but the synchronization between the adapter and bobbin rotation is poor
Solution Approach 1:
The adapter is configured to be rotatable in synchronization with the bobbin rotation, merging the rotation functions of both components. This ensures that the holding units remain properly positioned relative to the yarn ends throughout the rotation, maintaining stable synchronization without requiring separate control mechanisms.
Data Source
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AI summary
An adapter 10 is attached to a yarn supply package P1 including a yarn Y made of synthetic fibers. The adapter 10 includes an attachment portion 11, a first holding unit 12, and a second holding unit 13. The attachment portion 11 is attached to a yarn supply bobbin B1 of a yarn supply package P so as to be rotatable in a synchronization manner. The first holding unit 12 is provided in the attachment portion 11 and holds a first yarn end Y1 of the yarn Y on an outer layer side of the yarn supply package P1. The second holding unit 13 is provided in the attachment portion 11 and holds a second yarn end Y2 of the yarn Y on an inner layer side of the yarn supply package P1.