【正文】 紙 的 要求， 這 次產(chǎn)品尺寸 都是 采用 MT3 級精度， 而 未注 都是 采用 MT5 級精度。如果想要計算出該制 件 的 重 量 ，那么可以在 有關(guān) 三維 軟件中， 運 用 辨析 模塊對 制件 進行質(zhì)量 性能 分析，輸入材料 的 密度（ ABS 密 度為 3/cmg ）。～ 40180。 30180。為了 利于 塑料制品 的 脫離模具 ，防止脫 離 模 具 時 刮傷 制品 外 表， 制件和 脫模方向 相 平行的表面 應(yīng) 合理地設(shè)置 脫模斜度 。如果制件壁厚偏離設(shè)計太多，則使制件的剛度及強度降低，從而影響制件的使用效率，也使制件成型時熔體的流動阻力降低，影響成型效率，而且塑件過薄，也使從模具中取出塑件變得更加困難。成型收縮率小，容易出現(xiàn)應(yīng)力集中現(xiàn)象，發(fā)生熔融開裂，因此成型時應(yīng)嚴格控制成型條件，而成型之后塑件宜進行退火處理。 機電工程學(xué)院 10 機 制本三班 學(xué)生 黃進 井岡山大學(xué)畢業(yè)設(shè)計用紙 第 9 頁 共 43 頁 在計算機上分析完整成型過程，精準判斷 熔體的 充填 、冷卻，制 件 的收縮與 翹曲變形 、 應(yīng)力分布 、 分子 與 纖維取向分布等情況， 利于及時 發(fā)現(xiàn) 錯誤 ， 能盡早 修改模具設(shè)計 與 制件，而不是等試模 之 后再返 回 修 理 模具。 選用好了 模具結(jié)構(gòu) 與 注射機 類型 ，決定成型質(zhì)量的 關(guān)鍵條件 是注射成型工藝條件的控制 和選用 。 將物料從注塑機的料斗送進高溫加熱的料筒內(nèi)，經(jīng)加熱塑化成熔融狀態(tài)，；經(jīng)過 柱塞的高壓推動， 從 料筒端 部 的噴嘴注入低溫的、閉合的模具 型腔中 ，持續(xù)一段時間的 保壓冷卻定型 環(huán)節(jié) ，開模 就能 從模腔中 取 出 尺寸與形狀精準 的制品。 塑料 的 優(yōu)異性能 很多 ，它具有 良好的 絕緣性能，密度 不大 ，比強度高，質(zhì)量 不重 化學(xué)穩(wěn)定性高，減振隔音性能好 ，良好的 減磨耐磨性能等優(yōu)點 。s higher than 40%. Take imported from abroad every year die standard parts about the proportion of import charges three percent to eight percent die. plastic injection mold, promotion of water assisted, gas assisted injection molding and injection molding technology, the positive application of hot runner, meet the molding product needs. the analysis of materials and polishing technology of mould, to achieve the specific product requirements. tooling and quick manufacturing development, namely the rapid prototyping manufacturing technology, rapid manufacturing tooling and prototype product, reduce the cost to the market. development of surface treatment technology and highquality mold material advanced, improve the reliability of mould. of high speed milling, machining and ultra precision machining technology and technology, to meet the needs of mold manufacturing. of mold and molding process new, meet future multi functional multi disciplinary product development and design technology. In order to improve the utilization rate of yogurt yogurt box, we should think the bionic design of yogurt box wall, avoid the waste of resources. Analynise the requirements, process technology of precision plastic parts, select the size of plastic parts. The die using a two piece, injection machine adopts the 330XC model, the side gate feeding, CAD draw the part drawing and 2D assembly drawings, UG drawing die 3D map, set the cooling system, select the reasonable machining method. An instruction booklet, concise schematic diagram by using the system, a brief analysis of the text and the calculation of plastic parts, make reasonable mold design. Key word:mould design。 制造 模具及 成型 ，快速建出制品的模具及原型，把 成本 降低面向市場 的需求。 ，逐漸趨于集成化。模數(shù)為 7800 腔的模可以用型腔數(shù)量多的塑料膜進行制造。 拔出速度在 4m每分鐘之上的主型材多色共擠、多腔共擠、后共擠、硬軟共擠、再生料共擠等每種模具可以用高速模具制造生產(chǎn)。因此，我國模具技術(shù)與工業(yè)的關(guān)鍵發(fā)展方向?qū)⑹牵? 、復(fù)雜、使用壽命長的模具技術(shù) ，提升模具的對外銷售量，逐漸降低進口模具。 拋光技術(shù) 研究分析，來達到 特殊產(chǎn)品的 需求。 關(guān)鍵詞： 模具設(shè)計； 機械設(shè)計； 注射機 ； CAD 繪制二維圖 ；仿生設(shè)計 機電工程學(xué)院 10 機 制本三班 學(xué)生 黃進 井岡山大學(xué)畢業(yè)設(shè)計用紙 第 5 頁 共 43 頁 Abstraction The Chinese plastic mould level has been developing rapidly in the recent plastic mould can produce a single set of weight more than 50t of the injection mold， precise plastic pattern already can reach 3 μ m， the precision is μ m high optical requirements of lamp mould and small modulus gear mold can be produced,multi cavity mold plastic pattern can produce a mold 7800 cavity mold，high speed mould aspect can the production mode and the main profile extrusion speed highspeed plastic profile in 4m/min more extrusion twocolor coextrusion coextrusion, double cavity, post coextrusion, soft hard coextrusion, low foaming coextrusion coextrusion, recycled materials such as various the manufacturing production mold equipment, panies tend to numerical control rate, enterprises need more and more CAM/CAE/CAD production technology, processing, highspeed operating conditions RT/RP and other hightech production methods have been applied to many fields. In die production, according to the terms of use the standard mold rate rising, and the use of hot runner mold rate is also rising. Production management level of the pany and mold rising with the development of the Sino foreign joint ventures. The molding tool technical development,in a large extent dependent on the quality of mold materials research, standardization of mold, special machine tool equipment,advanced design and manufacturing technology, it is more important for production technology ,mold manufacturing industry develop toward intelligent, highly integrated,work and flexible improve the quality, improve production efficiency, shorten the manufacturing cycle, reduce the cost,enhance the consumption ability is the goal of mold ,the key is the development direction of mold technology and industry in China: of the large, plex, precision and longlife mold design and manufacturing technology, increases the export quantity of mould, reduce imports mold gradually. popularize, extensive application of CAM/CAD/CAE technology, gradually moving toward integration. Integration should be stressed that the information in the modern mold design and manufacturing, should be more integrated stressed people, technology and management. 機電工程學(xué)院 10 機 制本三班 學(xué)生 黃進 井岡山大學(xué)畢業(yè)設(shè)計用紙 第 6 頁 共 43 頁 the use of mold standard parts and mold standardization level rate. The use of standard parts of mould standard parts is to pave the way, high usage can reduce manufacturing cycle, die quality get improved. Advanced countries die standardization, mercialization rate is higher than 70%, than China39。 塑料簡介 塑料 的重要組成 成分 是樹脂 ，輔助成分 主要有充填 劑、增塑劑、著色劑等添加劑，