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摘 要
本論文主要研究的是應(yīng)急燈外殼注塑模具的設(shè)計(jì)方法。本文首先介紹了選題的依據(jù)以及選這個課題的意義，并簡單介紹了注塑模具的發(fā)展現(xiàn)狀。然后分析了應(yīng)急燈外殼制件的工藝特點(diǎn)，包括結(jié)構(gòu)工藝性、成型特性與條件、材料性能等，并選定了成型設(shè)備。接著述說了應(yīng)急燈外殼注塑模的分型面選擇、模具基本結(jié)構(gòu)及模架的選定及型腔數(shù)目的選定及布置，重點(diǎn)論述了成型零件、澆注系統(tǒng)、、脫模機(jī)構(gòu)、合模導(dǎo)向機(jī)構(gòu)以及冷卻系統(tǒng)的設(shè)計(jì)。而后選定標(biāo)準(zhǔn)模架和模具材料，并校核注射機(jī)的相關(guān)工藝參數(shù)，如最大注射量、注塑壓力等。最后闡述模具的工作原理，以及對安裝運(yùn)行過程中可能出現(xiàn)的問題予以總結(jié)、分析，并給于了對應(yīng)的解決方法。
本文論述的應(yīng)急燈外殼注塑模具采用兩板式結(jié)構(gòu)，采用一模兩腔的型腔布置，最后通過推板將制件推出。在設(shè)計(jì)模具的時候，需用到SoliWorks軟件進(jìn)行模擬，以確定型芯型腔及澆口位。此次應(yīng)急燈外殼注塑模具的設(shè)計(jì)各項(xiàng)參數(shù)必須來源可靠、選擇準(zhǔn)確、計(jì)算無誤，其中最大注射量及注射壓力是計(jì)算的關(guān)鍵。在工藝性上保證不影響操作的同時盡量做到了加工操作簡單、方便。
本設(shè)計(jì)是在傳統(tǒng)的應(yīng)急燈上進(jìn)行了創(chuàng)新，設(shè)計(jì)采用最領(lǐng)先技術(shù)LED顯示，并把電池裝在燈內(nèi)部，外部也更美觀。外殼的尺寸大小適中，模架也較好的選擇，模具整體不大，采用整體安裝。
關(guān)鍵詞：應(yīng)急燈外殼；注塑模；兩板模；澆注系統(tǒng)；脫模機(jī)構(gòu)
Abstract
The designing methods of injection mould of the Emergency light shell are mainly introduced in this paper. This paper introduces the topic basis and the significance of choosing thistopic, and briefly introduces the development status of injection mold.And then analyzes the process characteristics of emergency lamp shellparts, including the structure, characteristics and conditions of moldingprocess, material properties, and select the molding equipment.Then tell the type emergency lamp shell injection mold, mold surfacestructure and mold base selection and the number of cavities selection andlayout, emphasis, gating system, forming parts, demoulding mechanism,clamping mechanism and the cooling system design.Finally the selected standard mold and mold material, and process parameters of injection machine check, such as the maximum injection volume, injection pressure etc.. The working principle of the die, as well as to the possible problems in the process of installation and operation are summarized, analysis, and give the corresponding solutions.
Shell of emergency lamp injection mold in this paper adopts two plate structure, the layout of the cavity of a mould with two cavities, the push platewill work out.In the design of mold, use the SoliWorks software to simulate, in order to determine the core and cavity and runner position.Must choose accurate, reliable, accurate calculation of design parameters of the emergency lamp shell injection mold, the largest injection quantityand injection pressure is the key.In the process that does not affect the operation at the same time as far as possible the process has the advantages of simple operation, convenient.
This design is the innovation in the emergency lights on the traditionaldesign, using the most advanced technology of LED display, and the battery installed in the light of internal, external and more beautiful.Moderate size of shell mold, is the better choice, overall not die, the wholeinstallation.
Keyword: Emergency light shell;Injection mould;Threepence mould;Gating system;Moulding mechanism ; Space parting institutions
目 錄
引言 1
第1章 應(yīng)急燈外殼工藝性分析 4
1.1 材料性能 4
1.2 成型特性和條件 4
1.3 結(jié)構(gòu)工藝性 4
1.4 產(chǎn)品幾何形狀分析 5
1.5 應(yīng)急燈外殼注塑工藝參數(shù)的確定 9
1.6 初選注射機(jī)的型號和規(guī)格 9
第2章 應(yīng)急燈外殼注塑模具的結(jié)構(gòu)設(shè)計(jì) 11
2.1 分型面的選擇 11
2.2 確定模具基本結(jié)構(gòu)及模架的選定 12
2.3 確定型腔的數(shù)量和布局 12
2.4澆注系統(tǒng)設(shè)計(jì) 13
2.4.1主流道設(shè)計(jì) 13
2.4.2 分流道截面設(shè)計(jì)及布局 14
2.4.3 澆口設(shè)計(jì)及位置選擇 15
2.4.4 澆口套的設(shè)計(jì) 16
2.5 注塑模成型零部件設(shè)計(jì) 17
2.5.1 成型零部件尺寸分析 17
2.5.2塑件收縮率的影響 17
2.5.3型腔、型芯結(jié)構(gòu)設(shè)計(jì) 18
2.5.4 成型零件工作尺寸計(jì)算 20
2.6 合模導(dǎo)向機(jī)構(gòu)設(shè)計(jì) 20
2.7 脫模、推出機(jī)構(gòu)設(shè)計(jì) 21
2.7.1 推出機(jī)構(gòu)的組成 21
2.7.2 推出機(jī)構(gòu)的分類 21
2.7.3 推出機(jī)構(gòu)的設(shè)計(jì)原則 21
2.8冷卻系統(tǒng)設(shè)計(jì) 23
2.9 模架及模具材料的選擇 24
第3章 注射機(jī)相關(guān)參數(shù)校核 25
3.1 最大注射量的校核 25
3.2 注射壓力校核 26
3.3 鎖模力校核 26
3.4 模具厚度的校核 26
3.5 成型零部件強(qiáng)度校核計(jì)算 27
第4章 模具的工作原理及安裝、調(diào)試 28
4.1 模具的工作原理 28
4.2 模具的安裝 29
4.3 試模 29
結(jié)論 31
謝 辭 32
參考文獻(xiàn) 33