Draw Texturing Machine Partition for Yarn Threading
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Solution Overview
Problem
In draw texturing machines with multiple stages of twisting units, yarns are prone to swinging due to wind generated by rotating members, making threading difficult and increasing the risk of unintentional winding around rotating parts, especially during yarn breakage.
Innovation Solution
A partition is introduced between the yarn path and rotating members of adjacent twisting units on different stages, reducing the influence of wind and preventing unintentional yarn winding by surrounding at least a part of the yarn's periphery and being easily attachable and detachable, with an integrated yarn guide for defined pathing.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If twisting units are provided on plural stages to increase productivity, then the number of twisting units that can be provided in the arrangement direction is increased, but yarns may be swung due to wind generated by rotating members of upper stage twisting units when being threaded to lower stage twisting units
Solution Approach 1:
A partition is introduced as an intermediary element between the yarn path of lower stage twisting units and the rotating members of upper stage twisting units. This partition acts as a mediator that blocks the wind generated by rotating members from affecting the yarn path, thereby enabling easy yarn threading while maintaining multi-stage configuration for high productivity
2Productivity
If twisting units are provided on plural stages to increase productivity, then more twisting units can be arranged, but broken yarns may be unintentionally wound around rotating members
Solution Approach 1:
The partition serves as a protective intermediary that prevents broken yarns from contacting and winding around the rotating members of upper stage twisting units. By blocking the path between the yarn path and rotating members, the partition eliminates the risk of unintentional winding while allowing the multi-stage high-productivity configuration to operate
3Ease of operation
If partition is provided between yarn path and rotating member to suppress yarn swing and prevent unintentional winding, then threading is facilitated and reliability is improved, but device complexity increases
Solution Approach 1:
The partition is designed as a simple segmented structure that can be easily attached to and detached from the twisting units. This segmentation allows the partition to be implemented as a separate, modular component rather than an integrated complex structure, thereby improving threading and reliability while minimizing the increase in device complexity
Solution Approach 2:
The partition is designed with attachable and detachable characteristics, allowing it to be dynamically positioned when needed and removed when not needed. This dynamic design enables the system to adapt between different operational states (threading mode vs. normal operation mode) without requiring permanent complex structural modifications
Data Source
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AI summary
Objects of the present invention are, firstly, to facilitate yarn threading and, secondly, to suppress an unintentional winding of yarns around rotating members at the time of yarn breakage in a draw texturing machine in which plural twisting units are provided on plural stages. In a draw texturing machine comprising plural twisting units 14 each of which includes rotating members 45 to 48 rotated at the time of twisting a yarn Y and which are aligned in a predetermined arrangement direction and provided on plural stages, a partition 60 is provided between a yarn path of the yarn Y passing one twisting unit 14A (or 14B) on one of the plural stages and the rotating members 45 to 48 of one twisting unit 14B (or 14A) which is provided on another stage of the plural stages and which is close to the yarn path.