Optical Fiber Bobbin Flange Local Quality Design
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Solution Overview
Problem
Optical fiber winding bobbins experience deformation and reduced durability due to centrifugal forces when rotated at high speeds, and axial external forces can cause rigidity and strength issues in the main winding flanges.
Innovation Solution
The optical fiber winding bobbin design features a thin portion on the outer circumferential surface of the main winding flange with a reduced axial thickness, an increased thickness of the inner circumferential edge, and the addition of ribs and a reinforcement ring to enhance rigidity and strength while minimizing centrifugal forces.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Force
If the weight of the main winding flanges is decreased to reduce centrifugal force, then centrifugal force is reduced, but rigidity and strength of the main winding flanges in axial direction decrease
Solution Approach 1:
The main winding flange is designed with non-uniform thickness: a thin portion at the outer circumferential portion (reducing mass and centrifugal force) and a thick portion at the inner circumferential edge portion (maintaining strength and rigidity). This local variation in thickness allows simultaneous reduction of centrifugal force and preservation of structural integrity.
2Productivity
If the bobbin is rotated at high speed to increase productivity, then winding efficiency is improved, but vibration and deformation of the bobbin increase
Solution Approach 1:
By creating a thin portion at the outer circumferential portion of the main winding flange, the mass distribution is optimized to reduce centrifugal force during high-speed rotation, thereby minimizing vibration and deformation while maintaining high winding efficiency.
3Weight of moving object
If the axial thickness of the main winding flange is decreased to reduce mass, then centrifugal force is reduced, but rigidity in axial direction decreases
Solution Approach 1:
The main winding flange features a thin portion at the outer circumferential portion (reducing mass) and a thick portion at the inner circumferential edge portion (maintaining rigidity). This localized thickness variation allows the flange to be lighter while preserving structural stability during rotation and under axial loads.
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
This design effectively reduces centrifugal forces, maintains the rigidity and strength of the main winding flange, and prevents deformation, allowing for higher rotation rates and improved durability during optical fiber winding and transportation.
Implementation Method 1
the optical fiber winding bobbin may vibrate due to a centrifugal force acting on the main winding flanges
Data Source
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AI summary
An optical fiber winding bobbin includes a main winding body portion that is configured such that an optical fiber is wound on an outer circumferential surface and a main winding flange that is provided on one end portion of the main winding body portion in an axial direction and that protrudes radially outward. A thin portion, of which an axial thickness is smaller than an axial thickness of an inner circumferential edge portion connected to the main winding body portion, is formed at an outer circumferential portion of the main winding flange, which is positioned outward of a central portion in a radial direction.