Multilayer Core Molding Alignment via Pre-Formed Recesses
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Solution Overview
Problem
Existing multilayer core molding methods for golf balls often result in eccentricity of the inner cores due to misalignment and deformation of outer core materials during the molding process.
Innovation Solution
A multilayer core molding method that integrates unvulcanized or semi-vulcanized outer core materials with the inner core before arranging them in the molding apparatus, using a combination of extrusion and compression molding techniques to ensure precise alignment and prevent misalignment, thereby maintaining the inner core's center during the molding process.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If outer core materials are arranged on spherical inner cores and compression-molded around the inner cores, then multilayer cores can be formed, but eccentricity occurs in the inner cores due to misalignment and deformation
Solution Approach 1:
The patent applies preliminary action by pre-forming recesses in the outer core materials before molding. These recesses are specifically designed to receive and position the inner cores, ensuring proper alignment before the compression molding process begins. This preliminary structural preparation prevents misalignment and eccentricity during the subsequent molding operation.
Solution Approach 2:
The patent introduces recesses as an intermediary structural element between the inner cores and the outer core materials. These recesses act as a mediator that facilitates proper positioning and alignment of the inner cores within the outer core materials, preventing direct contact that would cause misalignment and eccentricity during compression molding.
2Ease of manufacture
If discrete outer core materials are arranged on inner cores, then multilayer structure can be created, but misalignment and deformation occur during molding
Solution Approach 1:
The patent applies preliminary action by pre-forming recesses in the outer core materials before the molding process. This preliminary structuring makes it easier to arrange outer core materials correctly, as the recesses provide built-in positioning features that guide proper placement and alignment during assembly.
Solution Approach 2:
The patent applies segmentation by dividing the outer core materials into discrete portions with individual recesses. This segmentation allows each outer core material piece to be independently positioned and aligned using its recess, making the overall arrangement process easier and more precise while maintaining the multilayer structure.
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 method effectively prevents eccentricity in the inner cores by ensuring the outer core materials are accurately positioned and adhered to the inner cores, improving the durability and alignment of the multilayer cores.
Implementation Method 1
the unvulcanized or semi-vulcanized first outer core material that covers only part of a surface of the inner core and is integrated with the inner core
Implementation Method 2
an upstream process of molding using an upstream process molding apparatus... a covering step, performed after the inner core arrangement step, of covering the inner core with a first outer core material to obtain an intermediate molded body
Data Source
AI summary
A multilayer core molding method includes an upstream process of molding using an upstream process molding apparatus, which includes a first upstream process mold including a first upstream process mold cavity surface, and a second upstream process mold including a second upstream process mold cavity surface. The upstream process includes an inner core arrangement step and a covering step to obtain an intermediate molded body, which includes the inner core, and the unvulcanized or semi-vulcanized first outer core material covering only part of a surface of the inner core and integrated with the inner core.