摘要：通过分析间断型内螺纹瓶盖的工艺性，可知内螺纹为半圆型螺纹，由于该瓶盖的材料为聚苯乙烯（PS），该材料不宜采用强制脱模。所以塑件采用内抽芯机构进行脱模，由图可知，内螺纹为两个局部段，对应在模具上制成两个内抽的滑块。当动定模分型时，在连接推杆的作用下，八个成型螺纹滑块沿T形槽移出，产生向心的收拢运动。这些滑块始终不脱离型芯座。由于瓶盖的上部分要求严格，所以采用点浇口浇注系统，脱模后不在修正浇口的痕迹。但采用这种浇口时，常常要在模具上增加一个分型面，以便浇口凝料脱模。 关键词：螺纹滑块内抽芯点浇口 Abstract:Pass the a
nalysis i
nterrupteds the craft of a cover of thread i
nside the type,ca
n k
nowis a thread of semicircle i
nside the thread,because of i
n order to gather the styre
ne(PS),that bottle of material for cover that material should
not adopt to take off the mold compulsory.So a
n adoptio
n ofi
nside take out the orga
nizatio
n ofto carryo
n taki
ng off the mold,ca
n k
nowfrom the diagram,i
nside the thread is two partial segme
nt,i
n moldi
ng tool asce
nd make i
nto twoth to should take out of slipperypiece.Whe
n move to settle the type of ce
nt of mold,while li
nk the fu
nctio
n of push the pole,eight model the thread the slipperypiece follows the T form slot to move,produci
ng to accept the sport of ce
ntripetally.These slipperypieces do
not escape from a always.Because the upper part of a cover requests separatelystrictly,so the adoptio
n orders to spri
nkle to spri
nkle to
note the system,after taki
ng off the mold
not spri
nkle the oscular trace i
n the correctio
n.But adopt this ki
nd of to spri
nkle,usuallywa
nt to i
ncrease the type of a ce
nt to face o
n the moldi
ng tool,i
n order to spri
nkle a peopleto a
nticipate to take off the mold. Keyword:Slipperypiece of thread I
nside take out Order to spri
nkle 目录 绪论………………………………………………………………………1 第1章模塑工艺规程的编程…………………………………………………3 1.1塑件的工艺性分析………………………………………………………3 1.2计算塑件的体积和重量…………………………………………………4 1.3塑件注塑工艺参数的确定………………………………………………5第2章注塑模的结构设计……………………………………………………6 2.1分型面选择………………………………………………………………6 2.2确定型腔的排列方式……………………………………………………7 2.3浇注系统设计……………………………………………………………8 2.4导柱和导套的选择………………………………………………………10 2.5抽芯机构设计……………………………………………………………11 2.6排气系统的设计…………………………………………………………12 2.7成型零件结构设计………………………………………………………12 第3章模具设计的有关计算………………………………………………15 3.1型腔和型芯工作尺寸计算……………………………………………15 3.2凹模型腔尺寸的计算…………………………………………………15 第4章模具加热与冷却系统的计算………………………………………16 第5章模具闭合高度的确定………………………………………………18 第6章注塑机有关参数的校核……………………………………………19 第7章绘制模具的总装图和非标零件工作图…………………………20 第8章注塑模具的安装和试模……………………………………………21 结论……………………………………………………………………24 致谢……………………………………………………………………25 参考文献………………………………………………………………26