Shuttlecock Manufacturing Automation and Feather Alignment
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Solution Overview
Problem
Conventional shuttlecock manufacturing is labor-intensive, time-consuming, and lacks standardization, resulting in inconsistent quality due to variations in natural feather dimensions and manual processes, making it difficult to achieve precise curvature and weight distribution.
Innovation Solution
A mechanized, automated manufacturing process that standardizes the weight and thickness of shuttlecock components using a cock unit, feather support, and feather unit, with molded feather connecting members and reinforcing materials, allowing for efficient production and precise control over dimensions and weight.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If hand-made manufacturing process is used, then flexibility in processing natural feathers is maintained, but production time increases to about 20 days and labor cost becomes high
Solution Approach 1:
The shuttlecock manufacturing process is divided into distinct segments: the cock unit is separately molded, the feather support is separately molded, and then these pre-manufactured components are assembled together. This segmentation allows each component to be manufactured independently using automated molding processes, dramatically reducing production time from 20 days to a fraction of that time while maintaining quality control.
Solution Approach 2:
The traditional hand-made mechanical processes (manual feather attachment, hand-twining of threads, manual gluing) are replaced with automated injection molding processes. The cock unit and feather support are molded using injection molding machines, and components are joined through automated assembly, eliminating the need for manual labor in the most time-consuming steps.
2Shape
If natural feather with great variation in shape is used, then authentic appearance is achieved, but manufacturing precision deteriorates as centers of mass cannot be overlapped and concentrically positioned
Solution Approach 1:
The feather support acts as an intermediary component between the cock unit and the feather units. It provides a standardized, precisely molded structure with built-in positioning features that guide the feather shafts into correct alignment. This intermediary element enables the use of natural feathers with varying shapes while ensuring that all feather centers of mass are concentrically positioned around the shuttlecock's central axis.
Solution Approach 2:
The invention changes the approach from trying to accommodate feather variations to standardizing the mounting parameters. The feather support is molded with precise geometric parameters (hole positions, angles, and dimensions) that force all feathers into a standardized configuration, ensuring consistent center of mass alignment regardless of natural feather shape variations.
3Adaptability or versatility
If hand-made process is used, then some degree of customization is possible, but standardization deteriorates and quality consistency cannot be controlled
Solution Approach 1:
The cock unit and feather support are designed as universal, standardized components that can accommodate different feather types and configurations. The molded structures incorporate standardized interfaces and mounting features that work with various feather specifications, allowing customization of the final product while maintaining consistent manufacturing precision through standardized processes.
Data Source
AI summary
A shuttlecock includes a ball head, a pinnae supporter and some pinnae. The pinnae supporter and the ball head can be made integrally or connected after being made respectively. The pinnae are inserted into the tubes of the pinnae supporter.