Textile Finishing Drum With Selective Contact Control
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Solution Overview
Problem
Existing textile finishing machines struggle to uniformly treat fabrics with non-homogeneous tension defects across the width, requiring costly reconfiguration and long downtimes to adapt to different types of defects, and are limited in handling continuous processing with adjustable winding angles.
Innovation Solution
A machine with a rotating drum and adjustable covering means that selectively prevent contact between the fabric and operating cylinders, allowing for dynamic calibration and programming of the finishing operation based on fabric conditions, using sensor-activated positioning to manage varying tension defects and adjust the winding angle during continuous processing.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If the finishing treatment is performed simultaneously over the whole surface of the fabric with uniform contact, then the processing speed is high, but the treatment uniformity deteriorates due to non-homogeneous tension defects
Solution Approach 1:
The patent applies local quality by differentiating the contact between the fabric and operating cylinders across different zones of the fabric width. Covering means are selectively positioned to prevent contact in specific transverse zones where tension defects exist, while allowing contact in other zones. This creates locally adapted treatment conditions that maintain uniformity across the entire fabric width without reducing overall processing speed.
2Adaptability or versatility
If the machine is reconfigured to adapt to different types of fabric defects, then the treatment adaptability is improved, but the downtime and costs increase due to reconstituting the whole machine
Solution Approach 1:
The patent implements dynamics by making the covering means movable and repositionable during operation. Instead of fixed covering panels requiring machine reconfiguration, the covering means can be dynamically adjusted to different transverse positions on the drum circumference based on the specific tension defect pattern of the fabric being processed. This allows rapid adaptation to different fabric types without lengthy reconfiguration downtime.
Solution Approach 2:
The patent applies preliminary action by detecting fabric tension defects before the fabric enters the treatment zone and pre-positioning the covering means accordingly. This advance preparation allows the machine to be ready for the specific fabric defect pattern without requiring reconfiguration during operation, thus minimizing downtime while maintaining high adaptability.
3Adaptability or versatility
If the winding angle is adjusted during continuous fabric feed, then the adaptability to different fabric conditions is improved, but the device complexity increases
Solution Approach 1:
The patent implements feedback by using detection means to sense the tension defect pattern of the fabric and automatically adjusting the position of the covering means based on this information. The system continuously monitors fabric conditions and makes real-time adjustments to the covering means positioning, enabling automatic adaptation to different fabric conditions without complex manual control systems.
Data Source
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AI summary
Machine for treating textile goods or fabrics (11), which comprises a drum (12) with a plurality of rotating operating cylinders (13). The drum (12) cooperates with at least a first drawing cylinder at entrance (16a) and at least a first drawing cylinder at exit (17a).