Textile Tool Module Annular Contact Surface Alignment
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Solution Overview
Problem
Existing textile tool modules face challenges in ensuring precise positioning and alignment due to difficulties in designing flat contact surfaces and potential deformations during assembly, leading to irregularities in textile production.
Innovation Solution
A textile tool module with a module body featuring a single annular contact surface around the fastening hole, preventing elastic deformation and simplifying the screwing process by distributing the tightening force evenly, ensuring precise alignment and positioning of textile tools.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If the module body is produced by casting or injection molding with a flat contact surface, then the manufacturing process is simple, but ripples or unevenness appear making exact positioning impossible
Solution Approach 1:
The contact surface is segmented into multiple localized contact points (first contact point, second contact point, third contact point) rather than a continuous flat surface. This segmentation allows the module body to achieve precise positioning through discrete geometric features that are less sensitive to molding imperfections like ripples and unevenness.
Solution Approach 2:
Instead of requiring the entire contact surface to be perfectly flat, the invention focuses precision on specific localized contact points. The first, second, and third contact points are precisely positioned to ensure accurate alignment, while other areas of the contact surface can tolerate manufacturing variations without affecting positioning precision.
2Ease of operation
If two spaced contact surfaces are used on opposite sides of the fastening hole, then the module body can rest on the bar or carrier, but deformations and sagging occur if tightening force is not in a predetermined range
Solution Approach 1:
The contact surface is enhanced with localized geometric features (protrusions or recesses) at specific contact points. These localized features distribute the tightening force more evenly and prevent deformation by creating stable bearing points, eliminating the need to control tightening force within a narrow predetermined range.
Solution Approach 2:
The contact surface geometry is designed in advance to prevent deformation before assembly occurs. The protrusions or recesses at the contact points act as pre-engineered stress distribution features that cushion against uneven force distribution during tightening, preventing sagging and maintaining positioning accuracy regardless of tightening force variations.
3Ease of manufacture
If a completely flat first side surface is provided as bearing surface, then attachment to support is simplified, but it is difficult and expensive to design one side surface as flat contact surface
Solution Approach 1:
The flat contact surface is segmented into discrete contact points with specific geometric features rather than requiring a perfectly flat continuous surface. This segmentation simplifies the molding process while maintaining attachment functionality, as the geometric features can be easily integrated into the module body design without requiring expensive post-processing or specialized tooling.
Data Source
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AI summary
The invention relates to a textile tool module (15) with a module body (16) and textile tools (17) attached thereto. The module body (16) has a mounting part (25) comprising a first side surface (26) and a second side surface (27). At least one side surface (26) and/or (27) forms a mounting area (30) with at least one contact projection (47) and at least one contact surface (48). In one embodiment, the contact surface (48) can extend in an annular shape around a mounting hole (34) that passes through the mounting part (25) and opens onto both side surfaces (26) and (27), respectively. It is also possible to provide several contact projections (47) and several contact surfaces (48) in a mounting area (30). One or more contact surfaces (48) can form surface edges (60) arranged immediately adjacent to the mounting hole (34) in the circumferential direction (U).These surface edges (60) have a maximum distance (dmax) that is smaller than the smallest diameter (D1, D2) of the mounting hole (34).