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《工程塑料应用》 2019年第12期
DOI:10.3969/j.issn.1001-3539.2019.12.016
基于Rhino造型的口部螺纹花艺瓶吹塑成型设计
吴冬俊,周小军,梁莉,张雁亭,涂秋燕
浙江工商职业技术学院机电工程学院,浙江宁波 315012 
Design of Injection-Stretch-Blow Molding for Floral Bottle with Mouth Thread Based on Rhino Modeling
Wu Dongjun, Zhou Xiaojun, Liang Li, Zhang Yanting, Tu Qiuyan
School of Mechatronical Engineering, Zhejiang Business Technology Institute, Ningbo 315012, China 
摘要:针对某花艺瓶大批量生产的需要,运用Rhino软件构建了塑件的工业外观三维造型。依据塑件的瓶口带有相对较厚的螺纹的特点,选用注射-拉伸-吹塑成型工艺对塑件进行成型,进而设计了两套成型模具及一套加热装置来实施该工艺过程。模具设计前,首先运用积分法确定了型坯的注塑尺寸,并据此设计了型坯的两板两次开模热流道注塑模具,其主要用于瓶口厚壁螺纹及瓶体薄壁型坯的成型。结合胀形成型需要及软化型坯的需要,配套设计了一种反射式方形加热装置来对注塑脱模后的型坯进行二次加热。为实现瓶身及瓶底的胀形成型,设计了与螺纹成型块能配合安装的气辅吹塑胀形模具,胀形模具结构为两瓣拼合式结构,瓶身和瓶底的成型件由不同镶件拼合而成,采用水槽和水管两种方式实现快速冷却;模具闭合时的复位定位依靠两级定位来实施,一级定位为导柱导套定位,二级定位为精定位块定位。模具结构设计简单实用,可为同类设计提供参考。 
Abstract:In order to meet the need of mass production of a floral bottle, the three-dimensional industrial appearance modeling of the plastic parts was constructed by Rhino software, and the injection-stretch-blow molding process was selected to molding the plastic parts for the characteristic of the thick-wall thread of the bottle mouth. Two sets of molding mould and a heating device were designed to implement the process. Before the design of the moulds, the injection molding dimensions of the parison were determined by integral method, and the two-plate hot runner injection mould of the parison with twice mould-opening were designed accordingly, which was mainly used for the molding of thick-wall thread of bottle mouth and thin-wall parison of bottle body. Considering the need of softening parison for blow-bulging forming, a reflective square heating device was designed to reheat the parison after injection molding. In order to realize the blow-bulging forming of the bottle body and bottom, a gas-assisted blow-bulging mould was designed, which could be combined with the thread forming block. The mould structure was a two-sectional splicing structure, the forming parts of the bottle body and bottom were divided into different inserts, the rapid cooling was realized by water tank and water pipe. When the mould was closed, the reset and positioning depended on two-stage positioning, the first-level positioning was the guide pillar and guide bush positioning, and the second-level positioning was the precise positioning block positioning. The design of mould structure is simple and practical, and can provide a reference for similar design. 
关键词:工业设计;三维造型;成型工艺;注射-拉伸-吹塑成型;模具 
Keywords:industrial design; 3D modeling; molding process; injection-stretch-blow forming; mould 
本文引用格式:
吴冬俊,周小军,梁莉,等.基于Rhino造型的口部螺纹花艺瓶吹塑成型设计[J].工程塑料应用,2019,47(12):91-96.
Wu Dongjun,Zhou Xiaojun,Liang Li,et al. Design of injection-stretch-blow molding for floral bottle with mouth thread based on Rhino modeling[J]. Engineering Plastics Application,2019,47(12):91-96. 

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