3928 錐齒輪的注塑模設(shè)計(jì)

3928 錐齒輪的注塑模設(shè)計(jì),齒輪,注塑,設(shè)計(jì) 畢業(yè)設(shè)計(jì)（論文）成績(jī)畢業(yè)設(shè)計(jì)成績(jī)指導(dǎo)老師認(rèn)定成績(jī)小組答辯成績(jī)答辯成績(jī)指導(dǎo)老師簽字答辯委員會(huì)簽字答辯委員會(huì)主任簽字插圖清單圖 1 分型面的選擇……………………………………………………………………7圖 2 型腔的排列………………………………………………………………………8圖 3 冷料穴的尺寸……………………………………………………………………9圖 4 澆注系統(tǒng)凝料的脫出 …………………………………………………………12表格清單表 1 塑件的原材料分析………………………………………………………………4表 2 聚碳酸酯注射成型的工藝參數(shù)…………………………………………………6表 3 型芯主要工作尺寸的計(jì)算 ……………………………………………………13表 4 型腔主要工作尺寸的計(jì)算 ……………………………………………………13 錐齒輪的注塑模的設(shè)計(jì) 摘要本設(shè)計(jì)的題目是錐齒輪零件的塑料注塑模設(shè)計(jì)，從圖紙上分析：該塑件整體外形回轉(zhuǎn)體，且符合最小壁厚要求，壁厚也較均勻。塑件不僅要在徑向收縮，并且在切向方向上的齒厚也會(huì)收縮。根據(jù)塑件的特點(diǎn)，模具型芯在動(dòng)模部分。開(kāi)模后，塑件應(yīng)收縮包緊型芯，而留在動(dòng)模部分，利用定模座板上的側(cè)凹和拉料桿將點(diǎn)澆口凝料拉斷，利用拉桿進(jìn)行第 2 次分型，將凝料從拉料桿上拉出，最后利用推管將制件推出。對(duì)合導(dǎo)向機(jī)構(gòu)的功能是保證動(dòng)定模部分能夠準(zhǔn)確對(duì)合，使分別加工在動(dòng)模和定模上的成型表面在模具閉合后形成形狀和尺寸準(zhǔn)確的腔體，從而保證塑件形狀，壁厚和尺寸的準(zhǔn)確，該模具采用導(dǎo)柱對(duì)合導(dǎo)向機(jī)構(gòu)。導(dǎo)柱和型芯一起安裝在動(dòng)模一側(cè)，這樣在合模時(shí)可起保護(hù)作用。關(guān)鍵詞：錐齒輪 模具 型芯 推管 收縮 Bevel gear note mold design AbstractThis design topic is the bevel gear components plastic note molds the design,Analyzes from the blueprint:Should model the overall contour solidof revolution,Also conforms to the smallest wall thicknessrequirement,Wall thickness is also even. Models not only to have in the radial shrinkage,And in cuts the tooth is thick to the direction in also can contract.According to models a characteristic,The mold core is moving the mold to be partial. After operates the mold,Models to be supposed to contract Bao Jinxing the core,But remains moves the mold to be partial, Using will decide on the mold base plate the side to sink and to pull the material pole to select the runner to congeal the material to pull,Carries on the 2nd minute using the tension bar,Will congeal the material from to pull on the material pole to pull out, Finally uses pushes the tube to promote the workpiece.The involution guidance organization function is the guarantee moves decides the mold to be partial can the accurate involution, Causes to process separately in moves the mold and decides on the mold to take shape the surface closed to form the shape and the size accurate cavity body after the mold,Thus guaranteed models a shape, Wall thickness and size accurate,This mold uses the guide pillar involution guidance organization. The guide pillar and the core installs together is moving a mold side, Like this when gathers the mold may get up the protective function.Key words: Plastic Model Male ejector plate contract