Abstract
In recent years, with the rapid development of the rapid development of Plastics Processing Technology plastic mold technology and the rapid development of China's plastics processing industry in recent years, continuous, high-speed, an important basis for stable growth, has played a positive role in promoting plastic-related fields such as home appliances, automotive, packaging industry Extrusion technology with the national sustainable development and implementation of policy, from traditional to high-energy-saving type, precision, molding products, therefore in order to enhance the geometric accuracy and uniformity of the intrinsic quality as the main indicator of the sophisticated technology in recent years at home and abroad to get the field of plastic processing attention.
Over the years plastics extrusion result of the development of new technologies derived from a wide range of new plastics extrusion die head. In recent years, some new plastic extrusion die in our application of the rapid development of industrialization and rapid popularity, such as spiral mandrel nose and so on. Combination of plastic extrusion technology in China as well as the new head of the development of plastic extrusion characteristics and trends, this paper describes the type of extrusion die, the principles of universal design and general design process, and new plastic extrusion die design by involved in the basic structure, made out of the content of the design brief.
In this paper, based on the actual production and demand, cost, processing conditions and material properties, such as considerations for the design of the original analysis of some head, made sure of the merits, and some old-fashioned design of the shortcomings of the nose, through some experience analysis and the calculation formula, based on the old nose made some improvements, especially in internal mixing effects of previous issues of non-performing detailed study, the final design of a mixing effect in the mold than more effective spiral mold. The old-fashioned mold and mold is the most important difference is that the design of flow channel has done a lot of improvements, a more reasonable distribution of the section, the molten material better.