False-Twist Yarn Tensioning Roller Assembly for Easier Threading
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Solution Overview
Problem
Existing yarn feeding tension control devices for false-twist texturing machines have poor threading performance, cumbersome tension adjustment, and monotonic operational modes, failing to meet diverse workshop demands.
Innovation Solution
A device comprising a support frame with symmetrically arranged support roller groups, a tensioning roller assembly, lifting frame assembly, and linkage assemblies that facilitate easy threading and tension adjustment, including dustproof covers and locking mechanisms for versatile operation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a simple tension control device is used, then the structure is simple and operation is convenient, but the threading performance is poor and tension adjustment is cumbersome
Solution Approach 1:
The support roller groups are designed to be movable rather than fixed, allowing them to move along the support frame to facilitate threading operations. The linkage assembly connects the tensioning roller assembly to the support roller groups, enabling dynamic adjustment of their positions during threading and operation.
Solution Approach 2:
The device is divided into modular components including the support frame, tensioning roller assembly, lifting frame assembly, and dustproof cover assemblies. Each component can be independently adjusted or removed, making threading and maintenance easier while maintaining overall structural simplicity.
2Adaptability or versatility
If a fixed operational mode is used, then the device structure is simple, but the adaptability to different workshop scenarios is limited
Solution Approach 1:
The linkage assembly enables dynamic adjustment of the support roller groups' positions and angles, allowing the device to adapt to different tension requirements and workshop scenarios. The movable components can be reconfigured based on specific operational needs.
Solution Approach 2:
The device design incorporates universal features such as adjustable support roller groups and a flexible linkage assembly that can handle various tension control requirements. The same basic structure serves multiple functions including threading, tension adjustment, and maintenance operations.
3Ease of operation
If tension adjustment is made complex, then the tension control precision is improved, but the ease of operation deteriorates
Solution Approach 1:
The linkage assembly provides a dynamic mechanism for tension adjustment where the support roller groups can be moved to different positions and angles. This dynamic adjustment allows for precise tension control while maintaining ease of operation through mechanical advantage and intuitive positioning.
Solution Approach 2:
The device uses mechanical linkages and geometric relationships to achieve precise tension control without complex adjustment mechanisms. The precision is obtained through the mechanical configuration of the linkage assembly and support roller groups rather than through complex control systems.
Data Source
AI summary
A device for controlling yarn feeding tension of a false-twist texturing machine, including a support frame, whose two sides are symmetrically and rotatably provided with two support roller groups, respectively. A tensioning roller assembly is slidably arranged at an inner side of the support frame. A lifting frame assembly is slidably arranged on the support frame to drive the tensioning roller assembly to move upward. Two dustproof cover assemblies are symmetrically arranged on two side of a top of the support frame. The tensioning roller assembly includes a tensioning roller, whose outer peripheral surface is provided with annular guide channels evenly spaced apart. Both ends of the tensioning roller are respectively provided with sliders. Two sides of the support frame are respectively provided with rectangular slideways fitting the sliders. The sliders are each provided with an annular protrusion coaxial with the tensioning roller.