Splice Channel Unit Inlet Duct Design for Textile Yarn Adaptability
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Solution Overview
Problem
Existing splice channel units require multiple designs to accommodate different yarn types and counts, leading to a large number of splicers and logistical challenges when yarns are changed, resulting in financial, logistical, and work-related inefficiencies.
Innovation Solution
A splice channel unit with a tangentially opening inlet channel for splicing air, which creates a turbulent flow to securely mix and twist fibers, and a design that includes radially offset splicing chambers with separate inlet ducts generating eddy currents, reducing the risk of threads being blown out, along with optional features like inclined channels and swiveling base mounts for versatility.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If multiple splice channel unit designs are used to accommodate different yarn types and counts, then the suitability for different yarns is improved, but the device complexity and logistical effort increase
Solution Approach 1:
The patent applies universality by designing a single splice channel unit that can accommodate different yarn types and counts through adjustable components. The splicer is designed with universal features that allow it to handle various yarn specifications without requiring multiple specialized designs, thereby reducing device complexity while maintaining adaptability.
Solution Approach 2:
The patent implements dynamics through adjustable and configurable components within the splice channel unit. The ability to modify the splicer's parameters and settings dynamically allows it to adapt to different yarn types and counts, providing versatility without requiring multiple fixed designs.
2Manufacturing precision
If compressed air is blown into the splicing channel to mix and twist fibers, then the splicing quality is improved, but the threads are pressed out of the insertion slot and splicing channel
Solution Approach 1:
The patent applies preliminary anti-action by implementing measures to counteract the harmful effect of compressed air pressing threads out before the splicing process begins. The splicer design includes features that preemptively address the thread ejection problem, such as controlled air delivery mechanisms or structural elements that prevent thread displacement, thereby maintaining splicing quality without thread loss.
3Reliability
If thread holding levers and control plates are used to prevent threads from being pressed out, then the thread retention is improved, but the device complexity increases
Solution Approach 1:
The patent applies merging by combining the functions of thread holding levers, control plates, and compressed air delivery into an integrated splicer design. Rather than using separate, complex holding mechanisms, the system merges these functions into a unified structure that achieves reliable thread retention with reduced overall complexity.
Solution Approach 2:
The patent utilizes pneumatics by employing controlled compressed air delivery to maintain thread retention during the splicing process. The pneumatic system provides a sophisticated yet integrated method of holding threads without requiring multiple mechanical holding levers and control plates, thereby improving reliability while managing device complexity.
4Manufacturing precision
If thread balloons are formed during splicing, then the threads are mixed and twisted, but large diameters pull the threads out of the splicing channel
Solution Approach 1:
The patent applies parameter changes by controlling the characteristics of thread balloons during the splicing process. The splicer design adjusts parameters such as balloon diameter, formation timing, and dissipation rate to optimize fiber mixing and twisting while preventing threads from being pulled out. This dynamic parameter control achieves effective splicing without the harmful effects of excessive balloon size.
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
Enables high-quality thread connections across a broader range of yarns without the need for multiple splicer designs, reducing logistical and financial burdens by minimizing the use of additional holding mechanisms and allowing for easy adaptation to different yarns.
Implementation Method 1
the inlet channel (66u) opens into the lower splicing chamber (20u) tangentially and in the immediate vicinity of a thread insertion slot (62) leading to the splicing channel (20), which generates a turbulent flow along the walls of the splicing channel (20)
Implementation Method 2
Each splicing chamber has its own tangentially opening inlet duct for the splicing air, which generates eddy currents directed in opposite directions to one another in the chambers
Data Source
Figure 1
Figure 2
Figure 3~4
AI summary
The invention relates to a splice channel unit (60) for a pneumatic splicer (10), a splicer (10) containing such a splice channel unit (60), and a textile machine (1) with such a splicer (10). The inlet channel (66o, 66u) for introducing the splicing air into the splice channel (20) of the splice channel unit (60) is specially designed.Depending on the embodiment of the invention, it has a) minimum dimensions for the length l of its outlet-near part (69o, 69u) and the diameter d of its outlet (70o, 70u) into the splice chamber (20), or b) the ratio rld = l/d of these dimensions exceeds a minimum value, wherein in both cases a) and b) this outlet-near part (69o, 69u) is to be kept substantially free of structures that impede the flow of the splice air, or c) the inlet channel (66o, 66u) is designed such that the splice air, during its flow through it, forms a laminar flow directed into the splice channel (20) at the latest before its outlet (70o, 70u).