Widening Roller Projecting Ridges Fiber Bundle Pressure
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Conventional filament winding apparatuses face challenges in evenly applying surface pressure to fiber bundles, leading to inefficient widening and potential contraction of the bundles due to the varying pressure distribution on convex and concave curved surfaces of the widening roller, and limited interval between rollers.
Innovation Solution
A filament winding apparatus with a widening roller featuring a plurality of projecting ridges extending in the axial direction, arranged side by side in the circumferential direction, which applies consistent surface pressure to the fiber bundles, preventing contraction and ensuring efficient widening.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If convex curved surfaces and concave curved surfaces are alternately provided on the widening roller, then the fiber bundles can be pressed and widened, but the surface pressure varies between portions in contact with convex surfaces and portions facing concave surfaces, making it difficult to apply pressure evenly
Solution Approach 1:
The widening roller surface is segmented into multiple projecting ridges arranged side by side in the circumferential direction. Each ridge acts as an independent pressure application element, collectively providing uniform pressure distribution across the fiber bundle width, resolving the pressure non-uniformity issue while maintaining widening efficiency.
Solution Approach 2:
The projecting ridges are designed with specific local geometric features (extension in axial direction, arrangement in circumferential direction) to create optimal pressure distribution. This local structural quality ensures even pressure application to the entire fiber bundle width, solving the uniformity problem.
2Reliability
If multiple widening rollers are arranged in the conveyance direction to suppress fiber bundle contraction, then contraction can be reduced, but the interval between rollers cannot be reduced sufficiently, allowing fiber bundles to contract before reaching the next roller
Solution Approach 1:
The widening function is segmented into multiple projecting ridges on a single roller, effectively creating multiple pressure application points along the circumferential direction. This segmentation allows continuous pressure application at smaller intervals without adding multiple separate rollers, reducing device complexity while maintaining width stability.
Solution Approach 2:
The rotating widening roller with multiple projecting ridges provides continuous pressure application to the fiber bundle as it passes through. The ridges are arranged and sized to ensure that pressure is maintained continuously throughout the contact zone, preventing fiber bundle contraction without requiring multiple discrete rollers.
3Productivity
If the fiber bundle is pressed and widened by convex curved surfaces, then widening occurs, but when the fiber bundle separates from the convex surfaces and is released from surface pressure, the fiber bundle may contract in the width direction
Solution Approach 1:
The multiple projecting ridges arranged in the circumferential direction ensure continuous pressure application to the fiber bundle throughout the contact zone. As the roller rotates, successive ridges maintain pressure on the fiber bundle, preventing release and subsequent contraction, thereby stabilizing the widened dimensions.
Solution Approach 2:
The fiber bundle is gradually pressed and widened by multiple projecting ridges in sequence as it passes through the contact zone. This preliminary progressive action prepares the fiber bundle for the subsequent conveying process, ensuring it maintains its widened state without contraction.
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 apparatus effectively widens fiber bundles by applying even surface pressure, suppressing contraction and enhancing the efficiency of the winding process, allowing for continuous pressure application at closer intervals without entanglement issues.
Implementation Method 1
the projecting ridges make contact with the fiber bundle to thereby widen the fiber bundle... the surface pressure can be applied substantially evenly to the entirety of the fiber bundle in the width direction
Data Source
AI summary
A filament winding apparatus winds, around a workpiece, a fiber bundle formed by bundling a plurality of fibers. The filament winding apparatus includes a widening roller that rotates while making contact with the fiber bundle that is being conveyed. The widening roller has, provided on the peripheral surface, a plurality of projecting ridges extending in the axial direction, the projecting ridges being arranged side by side in the circumferential direction. The projecting ridges make contact with the fiber bundle to thereby widen the fiber bundle.