摘要
Abstract
During the winding process of 3D printing filament,there are problems such as low degree of automation and inaccurate tension control.Based on the modular design con-cept,a new type of fully automatic winding device was proposed.Through the collabora-tive control of the selection and feeding module of the reel,the intelligent winding mod-ule,the hot melt sealing module and the self-adaptive cutting module,the full process au-tomation of 3D printing filament winding was achieved.Build a distributed control system centered around STM32,and implement dynamic tension stabilization regulation by com-bining the Proportional-Integral-Derivative(PID)control algorithm.The finite element a-nalysis verifies that the maximum equivalent stress of the core component(central rotating bracket)is 1.83 MPa,which is far lower than the material yield strength,and the dis-placement of 0.052 9 mm meets the stiffness requirements.The experimental results show that the tension control accuracy of the system is±0.05 kg,the winding speed can reach 15 m/min,the ellipticity error is≤1.5%,and it is suitable for various filaments with diameters of 1.75～3.0 mm,such as ABS,PLA,and carbon fiber.The reel change response time is≤10 s,and there is no fault after continuous operation for 24 hours.This sig-nificantly improves the automation level,stability,and flexible adaptability of the winding sys-tem,providing a reliable solution for the efficient production of 3D printing filaments.关键词
模块化设计/3D打印丝材/机械机构/分布式控制系统/收卷系统/动态稳定调控Key words
modular design/3D printing filament/mechanical structure/distributed con-trol system/winding system/dynamic stability regulation分类
信息技术与安全科学
