机械5

牙签盒合盖注塑模具设计 摘要 对塑料牙签盒盖的注射模结构采用侧浇口的进料，一模四腔的模具结构，材料采用性能良好，应用广泛的ABS通过对塑件成型的工艺分析，ABS塑料的性能分析，浇注系统的设计，冷却系统的设计，以及脱模装置的设计，制定出了一系列完整的生产牙签盒盖的生产流程。 根据对实物的测绘，采用产品设计的相关知识，通过合理加入设计体验，并结合实际的环境，工程预算。然后利用UG8.0，创建具体的三维实体模型，利用其制图版块绘制出二维工程图。然后进行模具设计，设计分型面，创建模具的型腔和型芯等等，设计出模具，最后生成工程图。 关键字：牙签盒盖；注射模；侧浇口；一模四腔 ABSTRACT For i
njectio
n mold structure of plastic toothpick box lid, the moldwith side gate feed a
nd o
ne mold a
nd four cavities is adopted. The material is made of ABSwith good performa
nce a
ndwide applicatio
n. Through the a
nalysis of the moldi
ng process of the plastic parts, the performa
nce a
nalysis of the ABS plastic, the desig
n of the gati
ng system, the desig
n of the cooli
ng system, a
nd the desig
n of the demouldi
ng device, the structure of the mould isworked out. A series of complete productio
n processes for toothpick box covers. Accordi
ng to the surveyi
ng a
nd mappi
ng of the object, the releva
nt k
nowledge of product desig
n is adopted, the desig
n experie
nce is reaso
nably added, a
nd the project budget is combi
nedwith the actual e
nviro
nme
nt. The
n, UG8.0 is used to create a specific three-dime
nsio
nal solid model, a
nd its drawi
ng block is used to draw two-dime
nsio
nal e
ngi
neeri
ng drawi
ngs. The
n desig
n the mold, desig
n the parti
ng surface, create the cavity a
nd core of the mold, desig
n the mold, a
nd fi
nally ge
nerate the e
ngi
neeri
ng drawi
ng. Keywords: toothpick box cover; i
njectio
n mold; side gate; o
ne mold four cavity. 目录 1概述1 1.1塑料模具的生产过程1 1.2模具行业的发展2 2注塑模的可行性分析3 2.1制品分析4 2.2材料选择4 2.3质量计算与分析5 2.4确定成型方法6 2.5拟定制品成型工艺参数及其三维设计6 3拟定模具结构方案7 3.1选择制品的分型面7 3.2型腔数目的确定7 3.3型腔的布置8 3.4注射机的选取9 3.5浇注系统的设计10 3.5.1主流道的设计10 3.5.2主流道衬套选择11 3.5.3浇口位置选择11 3.5.4浇口的设计及冷料穴的设计12 3.6分型与抽芯机构12 3.6.1侧向抽芯机构的简介13 3.6.2抽拔力和抽芯距的计算13 3.6.3斜导柱侧抽芯机构简介13 3.6.4斜导柱抽芯机构设计内容14 3.6.5斜滑块侧抽芯机构及滑块设计15 3.7注射模温度调节系统简介18 3.7.1冷却系统设计及其原则19 ４模架设计24 4.1模体概述25 4.2模架的确定25 4.2.1模架基本尺寸的确定25 4.2.2各模板尺寸的确定25 4.3排气槽的设计26 4.4脱模推出机构的设计26 4.5螺纹的布置及脱出26 4.5.1螺纹形状26 4.5.2螺纹的脱出27 4.6成型零件工作尺寸计算27 4.6.1型腔径向尺寸27 4.6.2型腔深度尺寸28 4.6.3型芯径向尺寸28 4.6.4型芯高度尺寸28 4.6.5螺纹型芯尺寸28 5夹具设计29 6型芯的加工步骤及数控编程31 致谢42