The Design And Analysis For Injection Mould Of Sliding Equipment

The core of mould injecting design is its cavity, namely, the designing of mould shaping parts, which traditionally depends on designers, intuition and experience and needs a lot of hand drawing. Suppose that the prototype needs readjusting, and then all the drawings must be drawn all over again, which often means hard work. As a result, Mould is always debug and corrected again and again before it can be used to produce products. Not only the mould design cycle is lengthening and the mould cost is high, but also the quality of the product can not be guaranteed The application of CAD and CAE technique to mould designing can ensure the design is implement successfully in one trail, it also shorten the period of mould design and lowered the product cost.Taking into consideration the practical purpose, the author of this paper adopts the injecting mould which is used in developing Pro/E software for sliding equipment of plastic knitting machine. Three dimension model of part and assemble model of mould were designed accord to size of sliding equipment, and every shaping part of mould were designed through design parting surface. The flowing simulation is done using plastic Advisor affiliated to Pro/E software and injection locations is determined and injection system is designed on the basis of the results from this analysis. As the cooling system is correlative to moulding time and quality of products, the ordinary laying forms and design are also introduced in the paper. Therefore, after using ADINA software to analyze the influence of cooling system on moulding temperature fields, the author points out that other conditions being equal, the less the pipe cavity distance is, the less its temperature difference and lower the surface temperature of the cavity will be. The greater the diameter of the pipe, the lower its temperature and greater the temperature difference is. The smaller the space between pipes is, the lower its temperature and thus smaller the temperature difference. The faster the cooling water flows, the higher the temperature and greater the temperature difference. The location and size of cooling pipes are calculated and distributed according to the emulation test and finally appropriate cooling system is brought forth.To determine the rationality of the designing of injecting mould for sliding equipment, moulding simulation and mold opening simulation are executed, the results of which indicate that the shaping cavity made from mould injecting design meets the demand of relevant requirements and shaping parts are easy to open and interference does not occur.