【正文】 ................................................ 7 最大注射量校核 ............................................................................................................... 7 鎖模力的校核 ................................................................................................................... 8 注射壓力校核 ................................................................................................................... 8 開(kāi)模行程校核 ................................................................................................................... 8 分型面的選擇 ...................................................................................................................... 8 4 澆注系統(tǒng)設(shè)計(jì) ....................................................................................................................... 10 澆注系統(tǒng)設(shè)計(jì)原則 ............................................................................................................ 10 熱流道注塑模具技術(shù) ........................................................................................................ 12 主流道設(shè)計(jì) ........................................................................................................................ 13 加熱管功率的計(jì)算 ............................................................................................................ 14 噴嘴 .................................................................................................................................... 15 流道板 ................................................................................................................................ 17 氣動(dòng)系統(tǒng) ............................................................................................................................ 18 注塑模的熱流道系統(tǒng)的裝配 ............................................................................................ 19 5 成型零件結(jié)構(gòu)設(shè)計(jì) ............................................................................................................... 22 型芯與型腔的結(jié)構(gòu)設(shè)計(jì) .................................................................................................... 22 整體式矩形型腔側(cè)壁厚度計(jì)算。s living habits, and the cell phone charge at GM because of its exceptional circumstances (price, convenience, etc.) get more people liked it, so in our lives was widely used. Block, which is connected rechargeable cell phone battery charging devices and the key positions. This paper describes the design of its injection mold of the general processes, including plastic pieces of technology analysis。 在整個(gè)設(shè)計(jì)工作中，本文主要運(yùn)用 3D 軟件 Pro/E 以及 CAD 軟件 來(lái)完成產(chǎn)品的造型。 本塑件是一個(gè)寬度 米左右，高 米左右，厚度 ~4 厘米之間的汽車后保險(xiǎn)杠。汽車保險(xiǎn)杠 注射 模 具 設(shè)計(jì) 摘要 ： 隨著汽車工業(yè)的發(fā)展，汽車保險(xiǎn)桿作為一種重要的安全裝置走向了革新的道路，保險(xiǎn)桿除了有保護(hù)功能外，還要追求與車體造型的和諧與統(tǒng)一，追求本身的輕量化和表亮化。塑件整體尺寸較大，無(wú)螺紋，所以不需要涉及螺紋設(shè)計(jì)。此外還利用 CAD 繪制了模具裝配圖以及各種成型零件圖。 specific structure of the mold and die various 2 D, 3D rendering of the plan。 .................................................................................... 22 整體式矩形底板厚度計(jì)算 ................................................................................................ 23 型芯的尺寸計(jì)算 ................................................................................................................ 23 型芯的徑尺寸計(jì)算 ......................................................................................................... 23 型芯高度尺寸計(jì)算 ......................................................................................................... 24 型腔尺寸計(jì)算 .................................................................................................................... 24 型腔徑向尺寸 ................................................................................................................. 24 型腔高度尺寸計(jì) 算 ......................................................................................................... 25 6 冷卻系統(tǒng)的設(shè)計(jì) ................................................................................................................... 26 冷卻系統(tǒng)設(shè)計(jì)原則 ............................................................................................................ 26 塑料注射量的計(jì)算 ............................................................................................................ 26 制品所需冷卻時(shí)間的計(jì)算 ................................................................................................ 27 冷卻水體積流量的計(jì)算 .................................................................................................... 28 水孔直徑的選擇 ................................................................................................................ 29 冷卻水在管道內(nèi)的流速 .................................................................................................... 29 冷卻水流動(dòng)狀態(tài)的校核 .................................................................................................... 29 冷卻管壁與水交界面的膜傳熱系數(shù) h ............................................................................. 29 計(jì)算冷卻水通道的導(dǎo)熱總面積 A .................................................................................... 30 計(jì)算模具所需冷卻水管道的總長(zhǎng)度 L ........................................................................... 30 冷卻水路的根數(shù) x ........................................................................................................... 30 冷卻系統(tǒng)的結(jié)構(gòu)設(shè)計(jì) ...................................................................................................... 30 7 排氣系統(tǒng) ............................................................................................................................... 32 8 塑件脫模機(jī)構(gòu)的設(shè)計(jì) ........................................................................................................... 33 脫模機(jī)構(gòu)設(shè)計(jì)原則 ............................................................................................................ 33 脫模力的計(jì)算 .................................................................................................................... 34 矩形臺(tái)錐形型芯脫模力計(jì)算 ........................................................................................