摘  要:塑料制品在日常生活中應用廣泛，注塑模技術己成為衡量一個國家產品制造業水平的重要標志之一。為了更好的了解塑料制品以及掌握所學知識，本文在參考大量文獻的基礎上，對飯盒蓋進行模具設計，綜合運用UG和CAD等軟件設計出一套合理的注塑模具，主要做了以下幾個方面的工作：

　　　（1）通過對飯盒蓋的觀察分析，從塑件的形狀，結構初步畫出三維圖形，然后對塑件進行質量屬性分析，尺寸精度的分析，確定塑件的材料，同時對塑件的成型工藝，性能數據加以分析。

　　　（2）對塑件的體積，質量進行分析，數據對比，確定注射機并進行校核，然后確定型腔數目，型腔的分布，分型面的設計。

　　　（3）對塑件的澆注系統進行設計，通過設計原則，主流道，分流道的設計，澆口的設計以及冷料穴和拉料桿的設計，排氣系統的設計，對模具有關尺寸進行設計（包括型芯、型腔的尺寸計算等）

　　　（4）對模架進行選擇，分析導向、定位機構的意義，對導柱進行選用，形成系統的合模導向機構，對復位機構進行設計，對脫模機構的有關尺寸進行設計，最后對冷卻系統進行設計。

　　　（5）對模具的總裝進行繪制，并繪制出具體的零件圖并對工作過程進行分析

　　　根據塑料制品的要求，了解塑件的用途，分析塑件的工藝性、尺寸精度等技術要求，選擇塑件制件尺寸。本模具采用一出二件，點澆口進膠，注射機采用海天160XB型號，設置冷卻系統，CAD和PROE繪制二維總裝圖和零件圖，選擇模具合理的加工方法。附上說明書，系統地運用簡要的文字，簡明的示意圖和計算等分析塑件，從而作出合理的模具設計。

關鍵詞：模具設計；CAD繪制二維圖；PROE繪制UG圖

ABSTRACT:Plastic products widely used in daily life, injection mold technology has become the measure of a national product manufacturing level one of the important marks. In order to better understand the plastic products and master knowledge, this article in reference to a large number of documents, on the basis of ice boxes for mould design, the integrated use of UG software such as CAD design and a reasonable set of injection molds, mainly do the following aspects of work:

　　　(1) Through the lunch-box coverof observation analysis, from the shape of the plastic parts, structure preliminary draw 3 d graphics, and then the plastic parts quality attributes analysis, dimension precision analysis, sure plastic parts material, at the same time for the plastic parts molding process, and performance data analyzed.

　　　(2) On the plastic parts of the volume, quality analysis, data comparison, determine the injection machine and checked, and then determine the number of cavity, the distribution of the cavity, parting surface design.

　　　(3) On the plastic parts of the pouring system design, through the design principles, the sprue, runner, gate design, the design and the cold slug well and pull rod design, the design of exhaust system for mold design, relevant dimensions ( including the core, cavity dimension calculation etc. )

　　　(4) The carrier selection, analysis of guiding, positioning mechanism of meaning, guide post, guide sleeve selection, formed the system of mold guide mechanism, the reset mechanism design of demoulding mechanism, the size of the design, the cooling system design.

　　　(5) Of the mold assembly drawing, and drawing the specific parts diagram and working process were analyzed.

　　　To understand the use of plastic parts in accordance with the requirements of the plastic products, analysis of the technical requirements of the plastic parts of the process, dimensional accuracy, select the workpiece size of the plastic parts. The mold using a four side gate feed injection machine adopts Haitian the 160XB models, and set a cooling system, CAD and PROE drawing two-dimensional assembly diagram and parts diagram, reasonable mold processing methods. Attach a manual, use brief text, a concise diagram and calculated analysis of plastic parts, in order to make a reasonable mold design.

Keywords：mechanical design; mold design; CAD drawing two-dimensional map; PROE draw UG maps, injection machine selection