Electric-heating full-automatic soybean milk machine with fuzzy control

Abstract

The invention discloses an electric-heating full-automatic soybean milk machine with fuzzy control, comprising a nose, a cup body, a motor, a motor transmission shaft, a rotary blade, a heating element, a temperature-measuring sensing head, an anti-overflow sensing head, an anti-dry-burning sensing head and a control circuit board, wherein because of the adoption of the control circuit board, a preparation method of soybean milk, is programmed and systemized, intelligent control on the processing process of the soybean milk is realized by a single chip microcomputer, especially the functions of automatically adjusting the heating power according to the temperature and controlling the temperature rising rate can be introduced during a plurality of time intervals in the processing process of the soybean milk.

Description

technical field [0001] The invention relates to a fuzzy control electric heating full-automatic soybean milk machine. Background technique [0002] Due to the lack of research on soymilk preparation methods, especially the systematic research on the beating temperature, beating time, beating method and heating and boiling temperature, time and method in the soymilk preparation method; the quality of soymilk produced by the automatic soymilk machine is Unsatisfactory indicators such as taste are unsatisfactory. [0003] Practice has proved that: the traditional method of soaking beans thoroughly, beating with cold water, and then boiling the soy milk, the taste of the soy milk is obviously astringent, and the smell is not mellow. As the temperature of the beating and blending water rises, the taste of the prepared soy milk is significantly improved and the mellowness increases. However, when the temperature of the blending water exceeds 87°C, the emulsification concentration...

AI Technical Summary

Problems solved by technology

[0004] The deficiencies of the existing full-automatic soybean milk machines are mainly manifested in the following aspects: the control circuit part of these automatic soybean milk machines generally adopts integrated logic gate circuits to drive relay switches To control the heating element and motor work, multiple sets of logic chips such as comparators, timers and triggers are often used. In addition, the power supply generally uses a power supply circuit composed of a power transformer and a full-wave bridge rectifier to integrate logic gates. The circuit is used for power supply, there are many components, and the circuit structure is complex; not only the manufacturing cost is high, but also the failure rate of the entire control circuit part is high, and the anti-interference ability is poor

[0005] On the other hand, due to the fact that the existing automatic soybean milk machine mainly uses pure hardware to realize the technological process of making soybean milk, especially the relay switch is used to control the heating element. , the heating power can only be full power or half power. In the boiling stage of the pulp, the power will generally be too high and overflow will occur. At this time, you can only stop heating and wait for the liquid level to fall before reheating, and then it will overflow again and stop. heating, cycle like this

This makes the soya-bean milk in an alternate state of boiling and non-boiling, and cannot achieve the effect of continuous cooking with a slow fire to fully decompose the protein.

In addition, if the power of the heating element is too large, it will easily cause the paste tube to burn, which is harmful to the human body and is not easy to clean. If the nominal power is too small, the preheating time will be long, resulting in a long time for the whole pulping process.

At the same time, this method will also shorten the mechanical and electrical life of the relay, and the applicability to different power grids is not good. With the increase of the grid voltage, there are problems such as increasing the heating power.

Similarly, when the motor is driven by a relay switch, the speed of the motor cannot be adjusted, so the speed of the motor is sometimes fast and sometimes slow, which not only affects the quality of beating, but also is not conducive to the startup and shutdown of the motor, and is easy to burn out the motor

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