毕业设计-矿泉水瓶吹塑模设计.doc

摘 要 根据矿泉水瓶的用途和使用要求进行分析，合理设计矿泉水瓶的形状造型结构，包括容积、壁厚、外形、底部和瓶口螺纹等的设计，并根据吹塑工艺选择制矿泉水瓶的材料。 矿泉水瓶吹塑模设计，采用平行移动式模具，设计内容包括模具材料选择、模具型腔、模具主体、冷却系统、切口部分、嵌块部分、排气孔槽和导向部分等。 根据本次设计的矿泉水瓶的功能、材料及各个工艺特点，吹塑工艺采用挤出吹塑，矿泉水瓶的成型包括成型设备和成型工艺条件等的分析设计。 关键词 矿泉水瓶;吹塑模;挤出吹塑；模具设计。 Abstract: Based on the analysis of the function and usage requirements of mineral water bottles, properly designed its shape and modeling structure, including the design of its volume, wall thickness, shape,the bottom and mouth thread, etc. Meantime, chose its material according to the blow mould process of mineral water bottles. The mineral water bottle blow mould design selected parallel move mold. The design included mould material selection, molud cavity, mould main body, cooling system, incision, embedded block, vent groove, orientation and so on. According to the function, material and process characterists of mineral water bottles, the blow process used extrusion blow in this paper, The forming of mineral water bottles contained the analysis and design of moulding equipments, moulding process conditions, etc. Keywords: mineral water bottles; blow molding; Extrusion blow molding; mould design. 目 录 1 引言…………………………………………………………………………… 1 2 吹塑件结构与材料分析……………………………………………………… 2 2.1 吹塑件的结构分析………………………………………………………2 2.2 吹塑件的材料分析………………………………………………………3 3 吹塑模具的结构与材料分析………………………………………………… 5 3.1吹塑模结构分析……………………………………………………………5 3.11 手动铰链式模具……………………………………………………5 3.12 平行移动式模具……………………………………………………5 3.13 挤出吹塑模具………………………………………………………6 3.2 吹塑模具的材料分析…………………………………………………… 7 4 挤出吹塑机头尺寸计算……………………………………………………… 7 4.1出模膨胀系数选择…………………………………………………………8 4.2 挤出机头设计原则……………………………………………………… 8 5 吹塑模具的型腔的设计……………………………………………………… 10 5.1分型面选择………………………………………………………………10 5.2型腔表面处理………………………………………………………… 10 5.3型腔尺寸计算……… ………………………………………………… 10 6 吹塑模具的颈部及底部嵌块设计…………………………………………… 13 7 吹塑模具的夹坯口与余料槽设计…………………………………………… 15 7.1剪口尺寸 ……………………………………………………………… 15 7.2剪口部位 ……………………………………………………………… 15 8 吹塑模具的冷却系统设计……………………………………………………16 8.1 冷却系统设计原则 …………………………………………………… 16 8.2 开设冷却系