本研究主要是針對膠囊咖啡機中用來辨識膠囊防偽標籤的膠囊辨識模組做優化設計，因其原設計結構容易有鬆動問題造成光學辨識位置偏移，因此本研究在原設計基礎上做機構改良設計，此外也針對現有咖啡機辨識模組組裝到咖啡機中易發生水蒸氣進入模組中導致電路板發生短路問題及影響辨識膠囊的功能來做密封改善，為了能達到密封要求，進行射出成型設計改善。
研究使用設計軟體PTC Creo Parametric進行機構設計，設計需要考量組裝件之間的匹配問題，並以卡勾、加強肋及螺絲柱做組裝設計及組裝分析。使用模流分析軟體Moldex3D進行塑膠外殼及支架成型分析，輔助射出成型參數設定及模擬成型情況。藉由模流分析模擬填充情況及結合線位置，分析成品可能出現縮水痕、應力痕及翹曲等問題，避免可明顯看出成型縮水痕及結合線情形，需達到A級1.67＞CPK ≥ 1.33量測標準以達到密封需求。最後將膠囊辨識模組組裝於膠囊咖啡機上進行影像驗證來確認是否功能正常。
綜之，本研究結合機構設計、模具設計、模流分析等過程完成一項產品，並在最後提出外殼肉厚改良設計建議，肉厚設計結果為t≦0.492T符合設計標準t≦0.5T。

The primary purpose of this study is to optimize the design of the capsule recognition module used to identify anti-forgery capsule labels in the capsule coffee machine. The original design structure is easily prone to loosening problems, resulting in the mispositions of optical recognition. Therefore, this study aims to improve the structural design of the original design. In addition, the recognition module needs to seal when assembly in the coffee machine and prevent circuits and functional interference caused by water vapor entering the module. The injection molding will be improved to meet sealing requirements.
This research uses Creo Parametric software for mechanism design. The design must consider assembly matching and use hooks, reinforcing ribs, and screw bosses for assembly design and analysis. The molding flow analysis software Moldex3D will analyze the molding of the plastic housing and camera holder assisting in setting injection molding parameters and simulating the molding situation. Molding flow analysis will simulate the material filling situation and the welding line position to analyze possible shrinkage marks, stress marks, and warpage issues in the finished product. To avoid noticeable molding shrinkage marks and wielding lines, and have the A class 1.67＞CPK ≥ 1.33 measurement to meet sealing requirements. Ultimately, the recognition module needs to be completed in the coffee machine to confirm that it is functioning via optical verification.
To sum up, this study product combines the mechanism design, molding design, molding flow analysis, etc. And brings up the housing thickness design improvement, in the end, the thickness result is t≦0.492T which meets the design guide of t≦0.5T.

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