Collector Comb Yarn Arrangement for Precise Warp Offsets
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Solution Overview
Problem
Existing yarn arranging machines are limited in automating the process of creating desired yarn arrangements for warps, particularly in handling a large number of yarns and achieving accurate yarn offsets, leading to inefficiencies and quality issues in the weaving process.
Innovation Solution
A yarn arranging machine with an open collector comb and a yarn releasing device that includes a support member with a free end, allowing for relative movement between the collector comb and yarn layers, enabling precise and automated yarn arrangement with larger offsets and handling multiple layers, thereby improving the accuracy and efficiency of the weaving process.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If manual yarn arrangement is used to achieve accurate yarn positioning, then yarn arrangement precision is improved, but production time increases significantly
Solution Approach 1:
The system uses optical sensors to automatically detect yarn positions and a controller to autonomously calculate and execute the yarn arrangement sequence, eliminating the need for manual intervention while maintaining high precision in yarn positioning on the weaving beam
Solution Approach 2:
The patent replaces manual mechanical arrangement with an automated system combining optical detection, electronic control, and mechanical execution through the yarn arranging device, achieving both high precision and efficiency
2Productivity
If automated yarn arranging systems are used to reduce production time, then productivity is improved, but yarn arrangement precision deteriorates
Solution Approach 1:
The system incorporates optical sensors that continuously detect yarn positions and feed this information back to the controller, which adjusts the arranging sequence in real-time to maintain high precision automatically, resolving the trade-off between speed and accuracy
Solution Approach 2:
The automated system uses electronic control and optical detection to achieve precision that rivals or exceeds manual arrangement, while simultaneously dramatically increasing production throughput
3Device complexity
If fixed-layer handling systems are used to simplify device structure, then device complexity is reduced, but adaptability deteriorates
Solution Approach 1:
The system dynamically determines the yarn arranging sequence based on detected yarn positions and input parameters such as color repeats, allowing it to adapt to different fabric patterns and requirements without changing the physical device structure, thus maintaining simplicity while achieving high versatility
Solution Approach 2:
The controller adjusts operational parameters such as the arranging sequence and offset values based on the detected yarn configuration and desired color repeats, enabling the same device to handle diverse patterns by changing control parameters rather than mechanical configuration
4Device complexity
If limited yarn offset capability is used to simplify the arranging mechanism, then device complexity is reduced, but adaptability deteriorates
Solution Approach 1:
The system achieves variable yarn offsets by dynamically adjusting the collector comb position and arranging sequence through electronic control, rather than using complex mechanical adjustment mechanisms, thus maintaining mechanism simplicity while achieving full offset adaptability
Solution Approach 2:
The controller calculates and applies different offset values for different yarn groups based on the detected positions and desired color repeats, enabling flexible offset adjustment without modifying the physical arranging mechanism structure
Data Source
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AI summary
The invention relates to a yarn arranging machine (1) for forming a warp with a desired yarn arrangement from a plurality of yarn layers, each layer comprising a plurality of yarns extending parallel to each other lengthwise along a machining direction of the yarn arranging machine (1), said yarn arranging machine (1) comprising; an open collector comb (50) for receiving the plurality of yarns according to the desired yarn arrangement, the collector comb extending lengthwise along a transverse direction (T) across the width of the plurality of yarn layers transverse to the machining direction; a yarn releasing device (20) comprising at least one support member (22) for supporting the yarns of a respective yarn layer selected from the plurality of yarn layers, said support member (22) having a free end and being interposable between the yarns of the selected yarn layer and the collector comb (50); releasing driving means (26) configured to move the free end of the support member (22) in the transverse direction (T) relative to the selected yarn layer to free a passage for the supported yarns of the selected yarn layer toward the collector comb (50); collector driving means configured to cause a relative movement between the collector comb (50) and the selected yarn layer at least in the transverse direction (T). The invention further relates to a method for preparing a warp with a desired yarn arrangement from a plurality of separated yarn layers overlapping each other across the width of the plurality of yarn layers.