Thread-Splicing Device Interfering Elements Vibration Control
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Solution Overview
Problem
Existing thread splicing devices struggle to produce high-quality thread splices, especially with coarse yarns, due to excessive thread vibrations during the splicing process, which affect the strength and appearance of the splice.
Innovation Solution
The introduction of interfering elements positioned on both sides of the splicing prism between the thread guide plates and the thread locking device, which contact the thread ends during the splicing process, effectively reduces thread vibrations and ensures proper integration of the thread ends.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If traditional thread splicing devices are used without interfering elements, then the device structure remains simple, but excessive thread vibrations occur during splicing of coarse yarns, resulting in poor splice quality
Solution Approach 1:
Interfering elements are introduced as intermediary components between the thread guide plates and thread locking devices. These elements serve as mediators that contact the thread ends during splicing to suppress vibrations, thereby improving splice quality without fundamentally changing the overall device architecture
Solution Approach 2:
The interfering elements modify the physical parameters of the splicing environment by introducing contact points that alter the vibration characteristics of the thread ends. This changes the dynamic behavior of the threading system during the splicing process, reducing excessive vibrations while maintaining structural simplicity
2Reliability
If interfering elements are added to suppress thread vibrations, then splice quality improves, but the device complexity increases
Solution Approach 1:
The interfering elements are positioned specifically in the region where thread vibrations occur most intensely - between the thread guide plates and thread locking devices. This localized intervention targets the problematic area without adding complexity to the entire device, improving splice reliability only where needed
Solution Approach 2:
The interfering elements are designed as simple geometric shapes that can be easily manufactured and integrated. Rather than complex mechanisms, they use straightforward structural forms that replicate the necessary vibration-suppressing function with minimal complexity
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 use of interfering elements significantly calms thread vibrations, resulting in thread splices that meet quality requirements in terms of strength and appearance, even when processing coarse yarns.
Implementation Method 1
a splicing prism with a splicing channel to which pneumatic pressure can be applied
Implementation Method 2
the two thread ends are then pneumatically intertwined
Implementation Method 3
Compressed air blasts are then introduced into the splicing channel
Implementation Method 4
which cause the fibers of the two yarn ends, which initially lie essentially parallel to each other in the splicing channel, to swirl
Implementation Method 5
the upper thread that has run onto the surface of a cross-wound bobbin is picked up by a suction nozzle and inserted into the splicing channel
Implementation Method 6
the lower thread is picked up by a gripper tube from an unwinding bobbin positioned in an unwinding position and also inserted into the splicing channel
Data Source
AI summary
A thread-splicing device for a workstation of a textile machine that produces cross-wound bobbins and has a splicing prism with a splicing channel to which pneumatic pressure can be applied, as well as thread-guiding plates arranged on both sides of the splicing channel, and which is equipped with thread-locking means. At least one interfering element is positioned on both sides of the splicing prism in a region between the thread-guiding plates and a thread-locking means in such a way that the thread ends to be spliced contact the interfering element during the splicing process.