摘  要

    一个国家工业水平的高低，在很大程度上取决于模具工业发展的水平。模具工业的发展水平，是一个国家工业水平的重要标志之一。注塑模具是指用于成型塑料制件的模具。设计塑料模时，确定了模具结构之後即可对模具的各部分进行详细设计，即确定各模板和零件的尺寸，型腔和型芯尺寸等。这时将涉及有关材料收缩率等主要的设计参数。因而只有具体地掌握成形塑料的收缩率才能确定型腔各部分的尺寸。即使所选模具结构正确，但所用参数不当，就不可能生产出品质合格的塑件。本文介绍了固定电话上壳的注塑模设计。首先对塑件制品进行工艺分析与研究。其次，进行分型面的选择，浇口的设计，决定模具采用水路冷却，结构简单，耐用，便于加工部件，生产效率高。利用推板对制品进行强制脱模。对模具的各个零件进行了设计与计算以及强度的校核。
关键词：固定电话上壳；注塑模；型腔型芯；设计；

Abstract

A nation's industrial level, to a large extent depends on the level of development of mold industry, is an important symbol of a national industrial level. The injection mold is a mold for molding plastic articles. Plastic design, determine the structure of the mold after you die on the part of the detailed design, determining each template and the size of parts, core and cavity size. This will involve the design parameters of main shrinkage of the material. Thus only the specific shape of plastic shrinkage control to determine the size of various parts of the cavity. Even if the selected mold structure is correct, but the parameters used properly, can not be qualified to produce quality plastic parts. This paper introduces the design of the injection mould for the fixed telephone shell. Firstly, plastic products for process analysis and research. Secondly, for the selection of parting surface, gating design, decided to mold adopts water cooling, has simple structure, durable, easy to machining parts, high production efficiency. The push plate is forced demoulding of products. Different parts of the molding tool design and calculation and strength check.
Key Words:fixed telephone shell; injection mold cavity core; design;