Warp Knit Net Reinforcing Interlacement Strength
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Solution Overview
Problem
Existing warp knit nets either have lower strength for a given weight or higher weight for a given strength, which is a concern for applications like safety nets and fish farming cages where strength is critical.
Innovation Solution
Incorporating a reinforcing interlacement within the chain of loops of the net, where additional yarns interlace with the primary interlacement to enhance the structural integrity of the net, without altering the type of knot, and modifying the warp knitting machine to facilitate this interlacement by adjusting the movement of needles and reeds.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If a superknot is used instead of a simple knot, then the breaking strength of the net increases, but the weight per square meter increases
Solution Approach 1:
The patent applies local quality by introducing a reinforcing interlacement only in specific portions of the chain of loops rather than throughout the entire net. This localized reinforcement at critical points (such as near knots or in high-stress areas) increases breaking strength where needed while maintaining lower weight in less critical areas, thus resolving the contradiction between overall strength and overall weight.
Solution Approach 2:
The patent segments the chain of loops into portions with reinforcing interlacement and portions without. This segmentation allows the net to have varying structural properties along its length, with reinforced sections providing enhanced strength and non-reinforced sections contributing to weight reduction, thereby achieving an optimal balance between breaking strength and weight per square meter.
2Adaptability or versatility
If the number of stitches in each leg and join of diamond pattern is varied, then the size of openings can be adjusted, but the structural complexity increases
Solution Approach 1:
The patent employs parameter changes by systematically varying the number of stitches in different legs and joins of the diamond pattern. This allows continuous adjustment of opening sizes to meet different application requirements. The method maintains relative simplicity by using regular, repeatable patterns of stitch variation rather than complex irregular designs, thus achieving adaptability while controlling structural complexity.
Data Source
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AI summary
A woven net comprises a plurality of net meshes, each of which is defined by a polygon with at least three sides and as many knots which connect a net mesh to adjacent meshes. Each side is formed by a chain comprising at least a first yarn that forms a primary interlacement of the chain, and at least a second yarn that passes through said primary interlacement of the chain. In at least one portion of a chain of a net mesh said second yarn forms at least one reinforcing interlacement of the chain.