Research and Development of Multi-Spilled-Dyevat Control System Based on PLC

Spilled-dyevat works in non-continuous mode. Its technological process is composed of putting in cloth, adding dyestuff, heating dye-liquor, cooling dye-liquor and rinsing, and each process stage has different temperature control curve. The purposes of the design are to realize time sharing control for multi-spilled-dyevats and to implement dyeing formula presetting and choosing. The time sharing control of multi-spilled-dyevats means that one PLC controls many spilled-dyevats in different time. The presetting and choosing of dyeing formulas means that many dyeing formulas are preset in PLC and that the monitor computer chooses different formula according to different technological process. The concentric issue of the dyeing formulas of multi-spilled-dyevat prevents the operation from mistaking in dyeing process and improves product quality. This paper introduces the hardware configuration of the multi-spilled-dyevat control system, the control software, the picture configuration and the running- result of the system.