| Along with the changes of environment and the continuous improvement of living standards, people’s health awareness has greatly improved, Soybean Milk on human health has played a positive role in the popular authentication, in the wind of food safety problems in reality, Soybean Milk machine become the new darling of the healthy living. After twenty years development Soybean Milk machine, through continuous reform, in appearance and technology have made great progress, now almost every essential, but compared with the demand continues to improve, Soybean Milk machine function is still single, then there exist some defects in the design, such as uneven heating, paste pot, Polish rough, without thermal insulation the production function, wait for a long time, the poor taste.In order to improve the performance of soya bean milk machine, this thesis designed a multifunctional soybean milk machine. Add the porridge, decocting medicinal herbs, instant grinding and other features in the original function and the soya bean milk machine more flexibility, humanization. The focus is on optimizing the control system, so that the production process temperature and time is more close to the handmade, uses the PID control algorithm, can effectively control the initial voltage and motor speed, not only ensures the high power grinding fine ingredients, but also to avoid the heating and grinding not synchronous to bring delay. At the same time can also reduce machine jitter, preventing the uneven of heating and mixing, improve work efficiency.Multifunctional soybean milk machine control system designed in this thesis is based on SN8P2734 microcontroller, adopts a new control algorithm, combined with the innovative design of hardware, realize the upgrading of existing soybean milk machine, solves the problem that the existing soybean milk machine with single function, long waiting time, uneven heating, grinding is not sufficient for many problems, there is a certain the practical and economic value. |
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