Optimization of Mechanical Structure and Temperature Control Design of FDM Smart Food 3D Printer

The article analyzes and designs the motion structure, platform design and transmission mode of the food 3D printer, determines the structure of the nozzle to make the three-dimensional motion as the motion structure, the Z axis adopts the ball screw drive, and the XY axis adopts the transmission mode of the synchronous belt drive;The automatic tool change system of the machine tool has designed a new type of nozzle fixture, adopting array type nozzle arrangement structure, which can realize the automatic conversion function of the nozzle and the mixed printing of various food materials; the heating device and the refrigeration system in the design body are designed to adopt the secondary semiconductor refrigeration method;For the improvement of traditional PID temperature control, the fuzzy adaptive PID control system is adopted, and the Matlab simulation is used for comparative analysis. The improved system improves the accuracy of temperature control and reduces the overshoot of traditional PID control. Protect the nutritional properties of the ingredients.