Weaving Loom Heddle Assembly via Solidified Resin Rivets
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Solution Overview
Problem
Existing heddle designs for weaving looms face issues with burrs generated during the overmolding process, which can damage neighboring threads, and difficulties in achieving uniform glue joints and high resistance assembly due to interlocking parts.
Innovation Solution
A composite heddle design featuring a link and heddle body assembly with solidified resin members in paired housings, ensuring strong longitudinal, lateral, and transverse bonding forces without play, and using resin rivets to secure the link and heddle body, preventing stress and ensuring high resistance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If the smooth body is molded over the link during the overmolding process, then the heddle body and link are assembled into a composite structure, but burrs are generated that can damage neighboring threads
Solution Approach 1:
The heddle is divided into separate components (link and smooth body) that are assembled through paired housings rather than overmolding. The link includes a housing and the smooth body includes a corresponding housing, creating a modular assembly that avoids the burr generation problem of overmolding while maintaining structural integrity.
Solution Approach 2:
The harmful overmolding process is extracted and replaced with a housing-based assembly system. Instead of molding the smooth body directly over the link (which generates burrs), the invention uses separate housings on both components to receive a solidified resin assembly member, eliminating the source of thread-damaging burrs.
2Ease of manufacture
If the reduced section end of a strand is introduced into a longitudinal housing by interlocking and glued, then the parts are assembled, but it is difficult to guarantee a uniform glue joint and high resistance assembly
Solution Approach 1:
A solidified resin assembly member acts as an intermediary between the link housing and smooth body housing. This resin member replaces the problematic glue joint, providing uniform bonding and high resistance assembly through its solidified structure that fills the paired housings and creates consistent mechanical interlocking.
Solution Approach 2:
The assembly method transitions from chemical bonding (glue) to mechanical bonding through phase change. The resin is introduced in liquid or malleable state to fill the housings, then solidifies to create a rigid, uniform connection. This parameter change from liquid to solid state ensures consistent joint quality and high assembly resistance.
3Device complexity
If the link and smooth body are assembled with interlocking parts, then the components are connected, but the engagement limits the residual sections and reduces assembly resistance
Solution Approach 1:
The link housing and smooth body housing are merged through the solidified resin assembly member that fills both housings. This creates a unified structural connection that combines the strengths of both components while maximizing the residual sections available for force transmission, thereby increasing overall assembly resistance.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The solution provides a heddle with improved resistance to forces and reduced bulk, ensuring secure assembly and preventing thread damage during weaving by eliminating burrs and ensuring uniform bonding, thus enhancing the durability and performance of the weaving process.
Implementation Method 1
the bonding forces can be transmitted through the resin assembly member in three directions: longitudinal, lateral and transverse
Implementation Method 2
The solidified resin assembly member forms an obstacle which secures the strand and the link along the longitudinal axis and along an axis perpendicular to the longitudinal axis and to the transverse axis
Data Source
Figure 1~2
Figure 3~4
Figure 5~6
AI summary
This warp thread guide heddle for a loom extends lengthwise along a longitudinal axis (X1) and comprises a heddle body (10) having at least one strand (4) and at least one link (2) including at least one slot and an eyelet for the warp thread. The heddle body has at least one slot; the slot for the link (2) and the heddle body slot extend along the same axis (Z1) transverse to the longitudinal axis (X1); the heddle body slot is opposite the link (2) slot, these slots together forming a pair of slots. A solidified resin assembly element (61, 62, 63, 64, 65) is disposed in the pair of slots.