Circular Knitting Machine Double-Sided Plush Fabric
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Solution Overview
Problem
Existing circular knitting machines are incapable of efficiently knitting double-sided plush fabrics during the knitting process.
Innovation Solution
A circular knitting machine comprising a horizontal needle bed, a sinker bed, and a vertical needle bed, equipped with hook needles, cutters, sinkers, knitting needles with cutters, and crochet needles, which form basic and pile loops on both sides of the fabric, allowing for simultaneous knitting and cutting of plush structures.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a circular knitting machine is designed to knit single-sided pile fabric with cut yarn structure, then the machine can produce single-sided plush fabrics, but the machine is incapable of knitting double-sided plush fabrics
Solution Approach 1:
The knitting machine is divided into two independent needle beds: a first needle bed for forming the basic structure and first pile loops, and a second needle bed for forming second pile loops. This segmentation allows each needle bed to be optimized for specific functions while working in coordination to produce double-sided plush fabric
Solution Approach 2:
The patent combines multiple functions into integrated components: knitting needles are equipped with both knitting functionality and cutting functionality, and the machine integrates yarn feeding, knitting, pile formation, and cutting operations into a unified system that produces double-sided plush fabric in a single continuous process
2Productivity
If pile loops are continuously formed and cut without clearing the latch needle, then productivity increases, but floating cloth and unstable loop formation occur
Solution Approach 1:
The latch needle is completely cleared of yarn before the cutting operation begins. This preliminary clearing action ensures that the needle is in a clean state ready for stable loop formation, preventing floating cloth defects while maintaining continuous production flow
Solution Approach 2:
The knitting process incorporates periodic clearing of the latch needle at specific intervals in the knitting cycle. This periodic action resets the needle state to prevent accumulation of yarn residues that would cause defects, while the overall continuous operation maintains high productivity
Data Source
AI summary
A circular knitting machine used to weave a double-sided plush fabric. The circular knitting machine comprises a horizontal needle bed, a sinker bed and a vertical needle bed. The horizontal needle bed comprises a plurality of hook needles and a plurality of cutters spaced at intervals between the plurality of hook needles, the sinker bed comprises a plurality of sinkers, and the vertical needle bed comprises a plurality of knitting needles with cutters and a plurality of crochet needles spaced at intervals between the plurality of knitting needles with cutters. Before the knitting needles with cutters to be ready for cutting a first pile loop: a latch needle comprised in the plurality of knitting needle with cutters that is ready for cutting yarn comprises been completely cleared, and the plurality of knitting needle with cutters to be ready for cutting yarn passed through at least one plain stitch cam.