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摘要 此次課題主要研究蓋塑料注塑模具的設(shè)計(jì) 圓蓋的應(yīng)用材料為聚丙 烯 pp 是一種半結(jié)晶的熱塑性塑料 具有較好的耐沖擊性 機(jī)械性質(zhì) 較為強(qiáng)韌 具有抗多種有機(jī)溶劑和酸堿腐蝕 在工業(yè)界具有廣泛的應(yīng)用 是我們現(xiàn)如今常見(jiàn)的高分子材料之一 現(xiàn)在模具已成為產(chǎn)業(yè)發(fā)展的基礎(chǔ) 然而 對(duì)塑料模具占模具總量的 比例 37 可見(jiàn)塑料成型沒(méi)模具在生活應(yīng)用領(lǐng)域中占有很重要的部分 隨著我國(guó)經(jīng)濟(jì)發(fā)展 塑料制品生產(chǎn)越來(lái)越廣泛 塑料何曾性工業(yè)在工業(yè) 中地位日益提高 本次畢業(yè)的設(shè)計(jì)通過(guò)對(duì)塑件進(jìn)行工藝性的分析和比較從而了解蓋塑 料模具的生產(chǎn)過(guò)程以及工作原理 此次課題從多個(gè)方面介紹了注射成型 的基本原理 完整零件的尺寸計(jì)算到模具動(dòng)作過(guò)程 從注射機(jī)的選用 澆注系統(tǒng)的組成 并對(duì)模具強(qiáng)度要求做了說(shuō)明 較為詳細(xì)的研究了蓋塑 料注塑模具的設(shè)計(jì) 通過(guò)本次設(shè)計(jì) 使我對(duì)塑料注射模有了一個(gè)初步的 認(rèn)識(shí)和見(jiàn)解 從中也注意到了生產(chǎn)過(guò)程中的細(xì)節(jié)問(wèn)題 研究注塑模具來(lái) 生產(chǎn)塑件產(chǎn)品 也讓我了解其生產(chǎn)過(guò)程和實(shí)現(xiàn)自動(dòng)化提高產(chǎn)量有很大的 生活意義 關(guān)鍵詞 注塑模 圓蓋 Abstract This topic mainly studies cover plastic injection mold design the application of the dome material for polypropylene pp is a semicrystalline thermoplastic plastics Has good resistance to impact mechanical properties is relatively strong with a variety of organic solvent and acid and alkali corrosion resistance Has wide application in industry is one of our nowadays common polymer materials Now the mold has become the foundation for the development of the industry however the plastic mold accounted for 37 of the total mould plastic molding didn t die in life occupies a very important part of the application field along with our country economic development the plastic products production is more and more widely plastic ever sex industry growing status in the industry The graduation design through the analysis of plastic parts for manufacturability and comparison to understand what the cover plastic mold production process and working principle The subject the basic principle of the injection molding are introduced from several aspects the size of the complete parts calculation to mold action process including the selection of injection machine the composition of gating system and has proved to mold strength requirement more detailed study of the cover of plastic injection mould design Through the design make me to plastic injection mould has a preliminary understanding and insights which also noticed the details in the process of production plastic injection mold to produce a product also let me know the production process and automation to increase production has a lot of life meaning Key words Injection mold round cap 目 錄 第一章產(chǎn)品的說(shuō)明 1 第二章塑件的分析 2 2 1 PP 的主要特點(diǎn) 2 第三章注射機(jī)的型號(hào)和規(guī)格選擇及校核 4 3 1 注射機(jī)的選用 4 3 2 注射壓力的校核 4 3 3 鎖模力的校核 5 3 4 開模行程與推出機(jī)構(gòu)的校核 5 第四章分型面的選擇 7 4 1 分型面的形式 7 4 2 分型面的選擇原則 7 4 3 我們這里選擇水平分型面 8 第五章型腔數(shù)目的決定及排布 9 5 1 型腔數(shù)目的確定 9 5 2 多型腔的排列 9 第六章澆注系統(tǒng)的設(shè)計(jì) 11 6 1 澆注系統(tǒng)的組成 11 6 2 澆注系統(tǒng)各部件設(shè)計(jì) 11 6 2 1 主流道設(shè)計(jì) 11 6 2 2 冷料穴的設(shè)計(jì) 12 6 2 3 分流道的設(shè)計(jì) 13 6 2 4 澆口的設(shè)計(jì) 14 第七章成型零件的工作尺寸計(jì)算 16 7 1 凹模的結(jié)構(gòu)形式 16 7 2 凸模的結(jié)構(gòu)設(shè)計(jì) 16 7 3 成型零件的工作尺寸計(jì)算 17 7 3 1 凹模徑向尺寸計(jì)算 17 7 3 2 凹模型腔高度尺寸的計(jì)算 17 7 3 3 型芯徑向尺寸的計(jì)算 18 7 3 4 型芯高度尺寸的計(jì)算 19 7 3 5 型腔壁厚和底板厚度計(jì)算 19 第八章導(dǎo)柱導(dǎo)向機(jī)構(gòu)的設(shè)計(jì) 20 第九章脫模機(jī)構(gòu)的設(shè)計(jì) 22 9 1 何為脫模機(jī)構(gòu) 22 9 2 脫模機(jī)構(gòu)的分類及選用 22 9 3 脫模機(jī)構(gòu)的設(shè)計(jì)原則 22 9 4 推桿的結(jié)構(gòu)形式及形狀 22 9 5 推桿的固定方式 23 第十章溫度調(diào)節(jié)系統(tǒng)的設(shè)計(jì) 24 10 1 冷卻系統(tǒng)設(shè)計(jì) 24 10 2 冷卻時(shí)間的確定 24 10 3 冷卻系統(tǒng)設(shè)計(jì)原則 25 10 4 冷卻系統(tǒng)的結(jié)構(gòu)形式 25 10 5 冷卻系統(tǒng)的計(jì)算 26 結(jié)論 27 參考文獻(xiàn) 28 致謝 29