Circular Weaving Machine Movable Warp Bobbin Devices
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Solution Overview
Problem
Existing circular looms face issues with high wear and uneven thread tension due to multiple deflections of warp threads, making them unsuitable for sensitive fibers and limiting their ability to produce fabrics with variable core contours.
Innovation Solution
The circular weaving machine features movable warp bobbin devices and shuttles that move along a circular orbit, allowing for a deflection-free path for the weft thread and direct interweaving of warp threads with weft threads on the weaving core, reducing thread abrasion and maintaining high tension.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If warp threads are fed via multiple deflections and overrolling on known circular looms, then the loom can process conventional fibers, but the fiber load causes high wear and makes sensitive fibers like carbon fibers unsuitable
Solution Approach 1:
The invention divides the warp thread feed system into separate, independently controllable warp thread spools positioned at different locations. Each spool feeds warp threads directly to the weaving point without multiple deflections, eliminating the cumulative fiber load that damages sensitive fibers while maintaining versatility for different fiber types.
Solution Approach 2:
The warp thread spools are arranged in a spatial configuration that allows direct linear feed paths to the weaving point, changing from a planar deflection-based system to a three-dimensional direct-feed system. This eliminates the need for multiple deflections and overrolling, reducing thread wear while maintaining adaptability.
2Ease of manufacture
If warp threads undergo multiple deflections and shedding, then the loom can produce fabric on a stationary core, but the uneven thread tension prevents firm pressing against variable core contours
Solution Approach 1:
The invention introduces movable warp thread spools that can dynamically adjust their positions to maintain optimal thread tension and direct feed paths. This dynamic positioning system ensures uniform thread tension across the fabric width, enabling firm pressing against variable core contours while maintaining ease of fabric production.
Solution Approach 2:
The invention replaces the mechanical shedding and multiple deflection system with a direct feed system from movable spools to the weaving point. This substitution eliminates the uneven tension caused by mechanical shedding while maintaining the ability to produce fabric, achieving both ease of manufacture and manufacturing precision.
3Reliability
If thread guide tubes are pivoted in a circular arc to reduce warp thread wear, then thread abrasion decreases, but thread tension drops significantly causing loose weave and tangles
Solution Approach 1:
The invention introduces movable warp thread spools as intermediaries that maintain constant thread tension while feeding warp threads directly to the weaving point. These spools act as tension-maintaining elements that eliminate the need for circular arc pivoting, preventing both thread abrasion and tension loss, thereby ensuring high weave quality.
4Productivity
If the loom is designed for continuous drawing off of endless fabric tube, then production efficiency is high, but the loom cannot produce hollow profile products with variable core geometry
Solution Approach 1:
The invention designs the loom with movable warp thread spools and a flexible weaving point positioning system that can accommodate both continuous fabric tube production and hollow profile products with variable geometry. This multi-functional design allows the same loom to switch between different product types without sacrificing production efficiency or adaptability.
Data Source
Figure 1
Figure 2a~2c
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AI summary
The invention relates to a circular weaving machine for weaving a weaving core (1), comprising at least one shuttle (5) which has a weft spool (7) and can be moved along a circular continuous track around the weaving core (1), and warp coil devices (10), each of which having a warp yarn bobbin (11). It is proposed that the warp coil devices (10) are designed in a movable manner, wherein the travel path of the warp coil device (10) with the warp yarn bobbin (11) extends through a weaving plane (6) which is enclosed by the circular continuous track (2, 23).