Rectangular Heddle Thread Eye for Durable High-Speed Weaving
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing heddle designs face challenges in maintaining a secure thread eye attachment under mechanical and chemical stress, leading to reduced service life and potential thread damage, especially in high-speed weaving machines with abrasive fibers and chemicals.
Innovation Solution
A heddle design featuring a rectangular thread eye part with a flat outer edge and corresponding shaped fillings and adhesion zones, made from corrosion-resistant steel, with spaces between the web sections and legs filled with epoxy resin for enhanced adhesion and durability, avoiding recesses that could accumulate residues and reduce the risk of partial loosening.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If adhesive is used to fill the gap between the thread eye part and the stranded wires, then the thread eye part is securely attached, but the filling breaks out under mechanical and chemical stress
Solution Approach 1:
The invention changes the geometric parameters of the adhesive application by introducing a specific angle α (30°-60°) between the adhesive layer and the support section. This parameter optimization ensures adequate adhesive coverage for secure attachment while preventing excessive adhesive accumulation that would lead to breakdown under stress
Solution Approach 2:
The invention applies adhesive locally rather than uniformly filling the entire gap. The adhesive is applied in a controlled manner at specific locations (between the web sections and legs) with controlled thickness, providing secure attachment where needed while avoiding weak points from excessive adhesive use
2Ease of operation
If the thread eye part has a shape corresponding to the heddle incision, then the connection is form-fitting, but the surface is not gentle on the thread
Solution Approach 1:
The invention applies different surface qualities to different parts of the thread eye part. The outer edge has a smooth, rounded surface for thread-friendly contact, while the support sections and web sections have geometric shapes for form-fitting connection to the heddle incision
Solution Approach 2:
The invention rounds the outer edge of the thread eye part to eliminate sharp corners and edges that could damage the thread. This curved surface design maintains the form-fitting connection while providing a gentle surface for thread passage
3Reliability
If the area to be filled with adhesive is reduced, then adhesion is improved, but the contact surface area is limited
Solution Approach 1:
The invention optimizes the adhesive application parameters by controlling the angle α and the thickness of the adhesive layer. This ensures sufficient contact area for adhesion while preventing excessive adhesive use that would create weak points
Solution Approach 2:
The invention applies adhesive partially rather than filling the entire gap. The adhesive is applied in a controlled manner at specific locations with optimized thickness, providing adequate adhesion without the negative effects of excessive adhesive accumulation
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 design extends the service life of the heddle, prevents thread damage, and ensures a smooth, durable surface for improved thread gliding, even under high tension and chemical stress, reducing fabric defects and increasing productivity.
Implementation Method 1
spaces between the web sections and legs filled with epoxy resin for enhanced adhesion
Data Source
Figure 1
Figure 2
AI summary
Weblitze (100) comprising a shaft section (114), an eye section (116) with two legs (118, 120) and a circumferentially closed thread eye part (102) with an outer edge (138), two support sections (140, 142) and two web sections (144, 146), wherein the thread eye part (102) with its support sections (140, 142) is arranged on the legs (118, 120) and the web sections (144, 146) and the legs (118, 120) define two filled spaces (152, 154), characterized in that the thread eye part (102) has a rectangular shape and the outer edge (138) is flat on the web sections (144, 146).