摘要
羽绒动态定量称量过程中的关键问题是称量精度与称量速度的优化与平衡,针对该问题设计了一种定量输送与自动称量方法,采用PLC控制的气力输送方法,通过双通道变气压气流控制,分时段调节羽绒输送速度,由称量传感器反馈实时质量数据,PLC控制气路及时切换。通过对不同定量值、不同气压值、不同分时比例的情况组合进行称量实验,对实验数据采用最小二乘法拟合得出气压与时间的函数关系,找出针对不同定量值可使用的最佳气压值,由PLC编程实现气流通道的自动切换控制,最终实现羽绒的精确快速称量。
The key problem during the process of dynamic quantitative weighing for eiderdown outwear lies in the optimization and balance of weighing precision and weighing speed,regarding which a kind of method of quantitative conveying and automatic weighing was designed in this paper. Using pneumatic conveying method of controlled by PLC, variable airflow pressure was controlled by PLC through dual to adjust the conveying speed of down feather by time interval, a weighing sensor was applied to make a feedback on the real-time weighing data,and the timely changing-over of air channel was controlled by PLC. The weighing experiment was conducted when the combination of different weighing values and different pressure values and different percentages,least squares fit was conducted to gain the function relationship between air pressure and time and find out the optimal air pressure value available under quantitative weighing; in addition,PLC programming was applied to realize the control automatic switch over of air flow passage,finally rapidly and precisely weighing down feather.
出处
《毛纺科技》
CAS
北大核心
2018年第1期60-64,共5页
Wool Textile Journal
基金
河南省科技攻关项目(152102210364)
