Knitting Tool Positioning via Bar Protrusions for High Fineness
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Solution Overview
Problem
Textile machines, such as knitting machines, face limitations in achieving high degrees of fineness due to the mechanical demands on thin strip walls and tool shafts between slits, which compromise stiffness and strength.
Innovation Solution
The introduction of a positioning means on the knitting tool that allows for precise positioning and fixation without the need for strip walls or channels, enabling the use of the space for thicker tool bodies and support sections, thereby achieving higher fineness levels like E50 without stiffness or strength issues.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If strip walls are used to hold knitting tools in slits, then the tools can be positioned and clamped, but the strip walls become too thin to withstand mechanical demands at high fineness
Solution Approach 1:
The invention extracts and eliminates the strip walls that were previously necessary for holding knitting tools. By removing these strip walls entirely and replacing them with a bar featuring protrusions that directly engage with positioning means on the knitting tools, the patent achieves high fineness (E50) without the mechanical weakness inherent in thin strip walls. This extraction resolves the contradiction by discarding the problematic element (strip walls) while maintaining the essential function of tool positioning.
2Manufacturing precision
If strip walls are provided between knitting tools, then the tools can be accommodated in slits, but the space available for tool shafts and bearing sections is reduced
Solution Approach 1:
By extracting and removing the strip walls from the system, the invention frees up the space that was previously occupied by these structural elements. This additional space is then utilized to increase the thickness of knitting tool bodies and their tool shafts, creating more substantial bearing sections that can withstand mechanical demands. The elimination of strip walls directly enables larger tool shaft dimensions while maintaining high fineness.
3Manufacturing precision
If strip walls are used for tool accommodation, then positioning is possible, but the strip walls and tool shafts become too thin for mechanical demands
Solution Approach 1:
The invention removes the strip walls that were causing reliability issues due to their thinness. By replacing the strip wall-based positioning system with a bar-protrusion engagement system, the patent maintains precise division (positioning accuracy) while dramatically improving reliability. The new system allows for much thicker, more robust tool shafts that can reliably withstand the mechanical demands of knitting operations at high fineness.
Data Source
AI summary
A knitting needle designed specifically for achieving particularly fine divisions, or another knitting tool (2), has a narrower working section (4) and a wider support section (5), whereby the support section (5) is provided with a positioning means (11), for example, having the form of a slit (12) or having the form of a rib (32). The knitting tool (2) is associated with a fixing means (29) in the form of a projection (17) or a groove (33) on the side of the bar (1). Due to this measure, the support sections (5) of the knitting tools (2) may be arranged—in close proximity to each other, in contact with or at a minimal distance from each other—on the bar (1), so that a maximum cross-section is available for configuring the support section (5). This provides strong stability for the knitting tools (2)—even in cases of extremely fine divisions—and, at the same time, provides precise alignment and avoids division errors.