摘要

 
在本设计中，通过运用CAD对双头孔轴套进行一模二腔的设计开发，其中包括凸、凹模的设计、推出机构的设计、注射机的选择与校核、浇注系统的设计、冷却系统的设计、模架的选择等各项工作。在本设计中，设计的重点在成型零部件即凸、凹模的设计和浇注系统、冷却系统的设计。其中浇注系统和冷却系统的设计是一副模具的设计灵魂，浇注系统的设计直接影响着塑件的成型质量和生产效率[1]。因此，对浇注系统的设计是注射模具设计的重点工作。而与此同时，模具的温度对塑件的质量和生产效率也着直接的影响，模具温度的控制直接影响着模具的凝固时间和收缩内应力，从而影响模具的成型周期长短和塑件质量好坏，及其表面粗糙度等。在本设计中着重设计了凸、凹模尺寸、浇注系统和冷却系统的尺寸及其系统结构。通过本次设计，我们首先学习了解了我国塑料模具的现状和发展状况、注射模的基本结构和注射模成型工艺过程以及模具设计的基本原理。
 
关键词：双头孔轴套；注射模；设计；POM

ABSTRACT

 
In this design, through the use of CAD for the design and development of two cavity mould of double hole sleeve, including convex and concave mold design, the design of ejecting mechanism, the choice of injection machine and check, gating system design, cooling system design, the choice of mold and other work. In this design, the design focus on the design of molding parts is convex and concave mold design, gating system and cooling system. The design of gating system and cooling system is the soul of a mold design, gating system design directly affects the plastic parts molding quality and production efficiency of [1]. Therefore, the design of pouring system is the focus of the design of the injection mould. At the same time, the temperature of the mould for the plastic parts quality and production efficiency has a direct impact, the mold temperature control directly affect the mold solidification time and contraction stress, thus affecting the molding cycle of mold and plastic parts quality, and surface roughness. The size of the convex, concave die size, gating system and cooling system and its system structure design in the design. Through this design, we first learn to understand the current situation and development of plastic mold in our country, the basic structure and the injection mold injection mold and molding process and the basic principles of mold design.
 
Keywords: double hole sleeve; injection mold; design; POM