机械5

XS-ZY-250A塑料注塑成型机比例控制液压系统设计 摘要 国内运用量以及产量最高的塑机之一就是注塑机，同时为国内塑机出口的主要品种，在上世纪后期国内注塑机业获得飞快进步，年增速达到至少20%，同时逐渐构成江浙为核心的加工基地。在技术上国内制造的注塑机，已然由通用型转变成专用型、自动等。在运用上国内注塑机主要为通用型，塑料制品主要有家具以及玩具等，在市场当中占比是相当高的。部分专用型如磁性与陶瓷注塑机，因为用量并不高，未能获得机械制造行业的高度关注。然而伴随市场的持续细分化，研制有关的专用机型存在较大的价值与作用。本人设计该机器的目标主要为：为深入而全面地理解注塑机的运转机理及其架构，把掌握的理论知识和实践活动紧密联系起来。 关键词：注塑机；油缸；合模； Abastract At prese
nt, the most commo
n a
nd most produced plastic machi
ne i
n Chi
na is i
njectio
n moldi
ng equipme
nt, is also the mai
n force of Chi
na's plastic machi
ne exports si
nce the 1980s, Chi
na's i
njectio
n moldi
ng machi
ne i
ndustry has developed rapidly,with a
n a
n
nual growth rate of more tha
n 20%, a
nd has gradually formed Zhejia
ng Ni
ngbo, Gua
ngdo
ng Processi
ng bases mai
nly i
n Do
nggua
n a
nd Shu
nde. I
n terms of tech
nology, the i
njectio
n moldi
ng machi
nes produced i
n Chi
na have developed from ordi
nary models to mai
nframes, full electric motors, electro-hydraulic composite machi
nes a
nd special i
njectio
n moldi
ng machi
nes. I
n terms of applicatio
n, Chi
na's i
njectio
n moldi
ng machi
nes are mai
nly ge
neral-purpose, a
nd the productio
n of ge
neral plastic products such as toys, statio
nery, daily
necessities, fur
niture, a
nd decoratio
n materials has the largest market share. Some special-purpose i
njectio
n moldi
ng machi
nes, such as ceramic i
njectio
n moldi
ng machi
nes for produci
ng fi
ne ceramic compo
ne
nts a
nd mag
netic i
njectio
n moldi
ng machi
nes for produci
ng
neodymium-iro
n-boro
n electro
nic compo
ne
nts, have
not received much atte
ntio
n from machi
nery ma
nufacturers due to the small amou
nt. However,with the further segme
ntatio
n of the market, it is of great sig
nifica
nce to develop releva
nt special models. The mai
n purpose of co
nstructi
ng this equipme
nt is to realize: to u
ndersta
nd the operatio
n mecha
nism a
nd structure of the i
njectio
n moldi
ng machi
ne as awhole, a
nd to closely li
nk the theoretical k
nowledge a
nd practical activities. Keywords：I
njectio
n moldi
ng machi
ne; cyli
nder; mold clampi
n; 目录 第一章绪论1 1.1发展史以及国内外现状1 1.2设计的主要目标1 第二章设计参数2 第三章工况分析的概述3 3.1合模油缸负载情况3 3.1.1依照合模力获知合模油缸推力3 3.1.2空行程过程里油缸推力情况3 3.1.3启模过程中的油缸推力情况4 3.2注射座总体运动时的油缸负载情况4 3.3注射过程油缸负载情况4 3.4顶出过程油缸负载情况4 3.5初算驱动油缸需要的的功率情况5 第四章确定工作状态油缸压力和流量6 4.1确定工作状态油缸压力6 4.2确定油缸的实际规格6 4.2.1依照合模油缸推力极值决定内径6 4.2.2依照注射座最大推力获取其移动油缸实际内径7 4.2.3依照注射油缸推力极值获取其实际内径7 4.2.4依照顶出油缸推力极值获取其实际内径7 4.3动作循环压力状况8 4.4决定油缸需求的流量10 第五章甄选液压系统与构架工作原理图13 5.1比例阀的选择以及比例阀类型13 5.1.1电液比例阀的特点13 5.2比例阀元件的比例关系13 5.3注射机液压系统工作原理图14 5.4选择比例阀的理由以及使用比例阀达到的效果15 结束语16 致谢17 参考文献18