Cooling Groove Metering for Synthetic Thread Texturing
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing methods for cooling synthetic threads in texturing machines often result in significant excess cooling liquid, leading to inefficient cooling and potential crimp uniformity issues, especially when cooling multiple threads in parallel.
Innovation Solution
A method and device that precisely control the delivery of cooling liquid through a metering opening in the cooling groove, with a delivery rate of 0.05 ml/min to 5 ml/min, and a cooling section length of 100 mm to 300 mm, ensuring even wetting and cooling, while using a dosing device and suction system to minimize excess liquid and vapor collection.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Temperature
If cooling liquid is supplied continuously to cool the heated thread, then the cooling effect is improved, but a significant excess of cooling liquid occurs leading to inefficient cooling and potential crimp uniformity issues
Solution Approach 1:
The patent applies parameter changes by precisely controlling the flow rate of cooling liquid through a metering opening (0.05-5 ml/min) and adjusting the cooling section length (100-300 mm) based on filament thickness. This quantitative control transforms the cooling process from excessive liquid application to optimized parameter-based cooling, resolving the contradiction between cooling effectiveness and liquid excess.
Solution Approach 2:
The patent implements feedback control through a dosing device that regulates cooling liquid supply based on thread characteristics. The system monitors and adjusts the metering opening to maintain optimal cooling liquid flow, preventing both insufficient cooling and excessive liquid application. This closed-loop control ensures consistent cooling performance while minimizing liquid waste.
2Productivity
If a large number of threads are cooled in parallel, then productivity is improved, but maintaining uniform cooling conditions for all threads becomes difficult
Solution Approach 1:
The patent applies segmentation by dividing the cooling process into discrete units - individual cooling grooves with dedicated metering openings for each thread. This segmentation allows each thread to receive precisely controlled cooling liquid independently, maintaining uniform cooling conditions even when processing multiple threads in parallel, thereby resolving the contradiction between productivity and cooling uniformity.
3Device complexity
If the cooling section is made shorter to reduce device complexity, then the device size is reduced, but sufficient cooling of the thread cannot be achieved
Solution Approach 1:
The patent resolves this contradiction by changing parameters - specifically increasing the cooling liquid flow rate precision through the metering opening and optimizing the cooling section length (100-300 mm) based on filament thickness. These parameter optimizations enable sufficient cooling in a compact section, reducing device complexity while maintaining effective cooling performance.
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
Achieves uniform cooling of synthetic threads with minimal excess liquid, allowing for efficient cooling of multiple threads in parallel without compromising crimp uniformity, reducing environmental pollution and operational effort.
Implementation Method 1
the heated thread is cooled by the cooling liquid in a cooling groove
Implementation Method 2
a relatively strong evaporation of the cooling liquid occurs on contact with the heated thread
Implementation Method 3
vapors caused by the cooling liquid are collected and removed with a suction device
Data Source
Figure 1
Figure 2
Figure 3~5
AI summary
The invention relates to a method and a cooling device for cooling a synthetic thread within a texturing zone of a texturing machine. For this purpose, a cooling fluid is introduced into a cooling groove of a cooling body, which is distributed in the groove base of the cooling groove. The heated thread is guided through the cooling groove in contact with same. In order to avoid an excess of cooling fluid at the end of the cooling, the cooling fluid is supplied via a dosing opening in the groove base of the cooling groove according to a thread titre of the thread and with a flow rate in the region of 0.05 ml/min to 5 ml/min, wherein the flow rate of cooling fluid is generate by a controllable dosing means.