Automatic Yarn Threading Device with Pressing Roller and Separation Guide
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing yarn threading processes require manual intervention to separate and thread yarns onto fulcrum guides, which can be tiresome due to yarns being close or twisted together, leading to inconsistent threading and potential yarn swing issues.
Innovation Solution
An automatic yarn threading device incorporating a suction gun, pressing roller, and yarn separation guide with grooves, where the pressing roller widens yarn intervals for easy insertion into the guide, and includes mechanisms for relative movement and retreat to prevent interference and ensure consistent threading.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If manual threading is used to thread yarns onto fulcrum guides, then the operator can control the threading process, but the process becomes tiresome and inefficient due to yarns being close or twisted together
Solution Approach 1:
The system performs automatic yarn threading without manual intervention. The suction gun automatically picks up yarns, the pressing roller automatically separates and spaces them, and the yarn guides automatically insert them into grooves, making the system serve itself and eliminating operator fatigue
Solution Approach 2:
The pressing roller performs preliminary separation and spacing of yarns before they reach the yarn guides. By pre-positioning and pre-spacing the yarns in advance, the system prepares them for automatic insertion, improving both efficiency and ease of operation
2Manufacturing precision
If the pressing roller is positioned close to the suction gun, then the yarn separation occurs early, but the tilting angles of yarns become large causing yarn swing
Solution Approach 1:
The pressing roller is designed to be movable rather than fixed. It can dynamically adjust its position along the yarn path, moving closer to the suction gun when separation is needed and moving away when yarn swing must be minimized. This dynamic adjustment allows the system to optimize both precision and stability at different stages of the threading process
3Stability of the object's composition
If the pressing roller moves away from the suction gun, then yarn swing is reduced, but the pressing roller must be moved to achieve the position change
Solution Approach 1:
The pressing roller serves multiple functions: it separates yarns, spaces them apart, and can move to different positions along the yarn path. By combining these functions in a single component rather than using separate devices, the system reduces overall complexity while achieving yarn swing reduction through positional adjustment
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 device enables efficient, automatic threading of yarns onto guides by widening yarn intervals and reducing tilting angles, thereby preventing yarn swing and ensuring consistent insertion into grooves, improving the overall threading process.
Implementation Method 1
a suction gun configured to suck the yarns having been spun out
Implementation Method 2
a pressing roller configured to be pressed onto the yarns sucked by the suction gun to widen intervals of the yarns
Data Source
Figure 1
Figure 2
Figure 3(a)~3(b)
AI summary
Yarns are automatically threaded onto yarn guides. A yarn threading unit 33 of an automatic yarn threading device includes a suction gun 42, a pressing roller 46, and a yarn separation guide 47. The suction gun 42 sucks and retains yarns having been spun out. The pressing roller 46 is pressed onto the yarns retained by the suction gun 42 so as to widen the intervals of the yarns. The yarn separation guide 47 is provided with grooves 47a lined up in one direction. After the grooves 47a of the yarn separation guide 47 are moved to a position opposing yarns with the intervals widened by the pressing roller 46, the yarns are inserted into the respective grooves 47a by retreating the pressing roller 46 to a position not making contact with the yarns. Thereafter, as the yarn separation guide 47 is moved toward the base end side in the first direction, the yarns are threaded onto fulcrum guides.