A system and method for in-line treatment of thread for use with a thread consumption device
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Solution Overview
Problem
Existing in-line treatment devices for thread coating lack precise control over the coating process, particularly in terms of dispensing the coating substance at specific circumferential positions on twisted threads, leading to inconsistent coating effects.
Innovation Solution
A system with a control unit that calculates the required longitudinal distance between nozzles and sets their activation timing based on thread speed and twist, allowing for precise dispensing of the coating substance at desired circumferential positions, enabling accurate control of the coating process and achieving specific color patterns.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If existing in-line treatment devices are used for coating thread, then coating can be applied to the thread, but precise control over the coating process at specific circumferential positions is lacking
Solution Approach 1:
The system changes the parameter of nozzle activation timing based on thread speed and twist rate. By dynamically adjusting which nozzles are activated and when, the system achieves precise control over coating position on the twisted thread, transforming a simple coating device into a precision coating system.
Solution Approach 2:
The control unit receives information about thread speed and twist rate, processes this feedback, and uses it to determine the optimal activation sequence of nozzles. This closed-loop control enables the system to adapt to varying thread conditions and maintain precise coating placement.
2Reliability
If nozzles are activated to dispense coating substance on twisted thread, then coating can be applied, but consistent coating effects at specific circumferential positions are difficult to achieve
Solution Approach 1:
The control unit pre-calculates and determines the activation sequence of nozzles based on known thread speed and twist rate parameters. By planning the coating sequence in advance, the system ensures that coating is applied at the correct circumferential positions, achieving consistent and reliable coating effects.
Solution Approach 2:
The system dynamically adjusts the activation timing and selection of nozzles based on real-time thread speed and twist rate. This dynamic adaptation allows the coating process to maintain consistency even when thread parameters vary, making the process more reliable and easier to control.
3Manufacturing precision
If multiple nozzles are used to achieve specific color patterns, then coating precision is improved, but control complexity increases
Solution Approach 1:
The coating system is divided into multiple independent nozzles, each capable of being activated independently. This segmentation allows precise control over where coating is applied on the thread's circumference, enabling complex color patterns while maintaining manageable control through individual nozzle activation sequences.
Solution Approach 2:
The system uses periodic activation of nozzles in a predetermined sequence that corresponds to the thread's rotation and movement. By activating nozzles at specific intervals and positions, the system achieves precise circumferential positioning and creates desired color patterns through rhythmic, periodic coating actions.
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 system enables precise and controlled dispensing of the coating substance, allowing for accurate positioning and consistent coating effects such as homogeneous, one-side-only, or helical patterns on the thread, improving the overall quality of thread coating.
Implementation Method 1
The control unit 50 is arranged to activate at least two of the nozzles 40a-g to dispense a coating substance such that the coating substance is absorbed by the thread 20 at different circumferential positions
Implementation Method 2
the coating substance is absorbed by the thread 20 at different circumferential positions of the thread 20 when the thread 20 twists about its longitudinal axis
Implementation Method 3
when the thread 20 twists about its longitudinal axis
Data Source
Figure 1~2
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AI summary
A system (10) for in-line treatment of thread (20) for use with a thread consuming device (100) is provided. The system comprises a treatment unit (30) having a plurality of nozzles (40a-g) arranged at different positions relative the thread (20), said thread (20) being in motion in use, each nozzle being configured to dispense one or more coating substances onto the thread when activated; and a control unit (50) configured to activate at least two of the nozzles (40a-g) to dispense the coating substance at different circumferential positions of the thread when the thread twists along its longitudinal axis.