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1系统概述金属带材在进行轧制,退火,清洗,拉矫等各种工艺加工时,都需要一套稳定运行的收放卷系统来对带材进行恒张力控制,保证带材一边放卷进入各道工序加工后又进行卷取,以便开展下一道工序。长期以来金属带材恒张力收放卷系统被直流调速张力控制系统占据,而直流调速系统价格高,后期维护成本也贵,在变频调速技术飞速发展的今天,完全可以采用变频器配普通的变频电机来取代,并且也可以达到恒张力控制的收放卷系统。因此,当某金属材料公司一套带钢清洗印花线要求我们改造时,我们选择了变频调速恒张力改放卷系统方案,而舍弃了该生产线原来的直流调速方案。
1 System Overview Metal strip in the process of rolling, annealing, cleaning, straightening and other processing, we need a stable operation of the unwinding and rewinding system to the strip constant tension control, to ensure that the tape unwinding Into the various processes after processing coiling, in order to carry out the next process. For a long time, the metal strip constant tension take-up and take-up system is occupied by the DC speed control system, while the DC speed control system is high in price and maintenance costs are expensive in the future. With the rapid development of the variable frequency speed regulation technology today, Ordinary variable frequency motor to replace, and also to achieve constant tension control of the retractable volume system. Therefore, when a metal material company strip cleaning printing line requires us to transform, we have chosen the frequency control constant tension tensioning system solutions, and abandoned the production line of the original DC speed control program.