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Method and system for making golf balls

A technology for golf balls and golf balls, which can be used in ball games, household appliances, sports accessories, etc., and can solve problems such as ball breakage

Inactive Publication Date: 2015-08-26
NIKE INNOVATE CV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Disadvantageously, imperfections around the mold pins can create weak spots on the finished ball and cause the ball to break prematurely

Method used

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  • Method and system for making golf balls
  • Method and system for making golf balls
  • Method and system for making golf balls

Examples

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Embodiment Construction

[0040] Embodiments of the present invention provide systems and methods of manufacturing golf balls that precisely control mold pin retraction based on feedback sensor data to avoid defects forming on the finished golf ball. Precise control allows the mold pin to be retracted as the injected molding material approaches the mold pin, after a subcomponent of the golf ball is sufficiently held in place by the injected material, and before the molding material contacts the pin. Alternatively, precise control may retract the mold pin after the material contacts the pin, but within a sufficiently short time after contact to provide an acceptable part. Accordingly, embodiments of the present systems and methods may avoid disadvantages originally caused by pin retraction from surrounding cooled and hardened or partially hardened molding material.

[0041] Embodiments may utilize feedback sensor technologies such as cavity pressure sensing and melt front detection in precisely controll...

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Abstract

Embodiments provide methods and systems for manufacturing a golf ball that precisely control the retraction of mold pins (118) based on feedback sensor data, to avoid the formation of imperfections in the finished golf balls. An embodiment may involve holding a golf ball subpart (104) within a mold (106,108) using at least one retractable mold pin (118); injecting molten molding material into the mold; detecting, during injection, operating conditions within the mold indicative of positions of the molten molding material relative to the at least one mold pin; and based on the detected operating conditions, retracting the at least one mold pin before the molten molding material reaches the at least one mold pin. Other embodiments may retract a mold pin after the molten material contacts the pin but within a duration suitably short enough to avoid undesirable part properties.

Description

technical field [0001] The present invention relates to golf ball manufacturing, and more particularly to a golf ball manufacturing method and system for precisely controlling mold pin retraction based on feedback sensor data to prevent defects from forming on the finished golf ball. Background technique [0002] Conventional golf ball manufacturing techniques typically form the golf ball's layers by molding material around subcomponents, such as a solid core or multiple layers of preformed golf ball sections. Molding materials are typically thermoplastic or thermoset materials that are injection molded around the subcomponent. Traditional injection molding techniques typically use a two-piece mold, with each part of the mold defining a hemispherical cavity. The two mold parts cooperate to align their cavities together to define the shape and size of the cambium on the subpart. When the two mold parts are brought together and before the molding material is injected, the go...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B29C45/00B29C45/26B29C45/78B29C45/80A63B45/00
CPCB29C45/14819B29C2045/1409B29C45/14073B29L2031/54B29C33/123
Inventor 布拉德雷·C·塔特马克
Owner NIKE INNOVATE CV
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