Movable Yarn Winder Guide Unit for Threading Access
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Solution Overview
Problem
In yarn winders with a large number of bobbins, the fulcrum guides on the far side are far from the operator, hindering the yarn threading operation due to a fixed guide member position, which limits production efficiency and workspace during threading.
Innovation Solution
A yarn winder design where the guide unit, including fulcrum guides, is movable between a yarn winding position and a yarn threading position, allowing the fulcrum guides to be gathered to one side and the guide unit to be drawn obliquely upward, increasing the working space and facilitating yarn threading by moving closer to the operator.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If the number of bobbins is increased to improve production efficiency, then productivity increases, but the fulcrum guides on the far side become far from the operator, making yarn threading difficult
Solution Approach 1:
The guide member is made movable along the axis of the bobbin holder, allowing the fulcrum guides to be dynamically repositioned. During yarn winding, the guide member is positioned at the rear end to maintain proper fulcrum positions. During yarn threading, the guide member is moved to the front end, bringing all fulcrum guides close to the operator, thereby resolving the accessibility issue while maintaining high productivity
Solution Approach 2:
The guide member moves along the axial dimension of the bobbin holder, transforming the spatial arrangement of fulcrum guides from a fixed distributed pattern to a concentrated pattern near the operator. This dimensional movement allows the system to switch between two operational states: winding mode with proper fulcrum positioning and threading mode with operator accessibility
2Ease of operation
If the fulcrum guides are gathered to the near side to facilitate yarn threading, then ease of operation improves, but the guide member position becomes fixed, making it difficult to handle when the number of fulcrum guides is large
Solution Approach 1:
The guide member is designed to be movable rather than fixed, allowing it to be positioned at different locations along the bobbin holder axis. This dynamic positioning capability enables the system to concentrate fulcrum guides near the operator during threading operations while maintaining the ability to redistribute them during winding operations, thereby managing device complexity through controlled movement
Data Source
Figure 1
Figure 2
Figure 3(a)~3(b)
AI summary
Yarn threading onto fulcrum guides is further facilitated. A yarn winder 6 includes: a bobbin holder 24 which extends in a front-rear direction, bobbins B on which yarns Y are wound, respectively, being attached to the bobbin holder 24 to be lined up in the front-rear direction; traverse guides 22 which are provided above the bobbin holder 24; fulcrum guides 41 which are lined up in the front-rear direction and function as fulcrums for traversal of the yarns Y; and a guide unit 21 which is provided above the traverse guides 22 and includes fulcrum guides 41 and a guide supporter 42, the fulcrum guides 41 being lined up in the front-rear direction and functioning as fulcrums of traversal of the yarns Y, and the guide supporter 42 extending in the front-rear direction and supporting the fulcrum guides 41. The fulcrum guides 41 are gatherable to a front end portion of the guide supporter 42, and the guide unit 21 is movable between a yarn winding position where the yarns Y are wound onto the respective bobbins B and a yarn threading position which is at least on the front side of the yarn winding position.