PLC tension system solution
Electric part solution of coil tension system based on PLC
1、 Overview
Seven motor linkage tension control system is a high-performance and cost-effective tension control system designed for domestic gravure press by our company with many years of rich industry experience and foreign advanced technology. The system consists of unwinding unit, lead-in unit, lead-out unit, take-up unit and corresponding control part. With high-grade hardware and advanced software, it can meet the requirements of different grades of machines. It has the advantages of high automation, complete functions, stable performance, simple operation and high productivity.
2、 System features
1. Four stage floating roller seven motor tension control system. Unwinding, leading in, leading out and rewinding are all detected by swing roll of ultra-low friction cylinder, which is a high precision and high sensitivity tension control system;
2. Zero speed and constant tension, realize static safe operation and start fast and stable tension;
3. It has the advantages of high efficiency, low waste rate and remarkable economic benefits;
4. Remote acceleration and deceleration and speed automatic control, tension and speed linkage control, acceleration and deceleration overprint stability;
5. You can choose the acceleration and deceleration curve, whether the acceleration and deceleration ring, meter counting and other personalized functions. Embody the humanized design idea;
6. Siemens series PLC centralized control and man-machine interface Chinese display operation system are adopted. Mechanical, electrical, optical and gas integrated design, with perfect protection measures.
3、 Configuration description of main parts
1. Unwinding unit
High performance vector frequency conversion active unwinding, zero speed constant tension control, tension and host to achieve linkage, whether low-speed, high-speed have stable and high-precision tension control. The whole process can be completed automatically only by pressing one "refueling" button. The cylinder cushion floating roll system adopts the closed-loop tension detection of ultra-low friction cylinder, and the tension is adjusted to the function curve correction to effectively restrain the tension disturbance caused by the coil ellipse. The electric proportional valve can be selected as the tension taper curve. Power off tension automatic memory.
2. Lead in unit
The division of tension section is guaranteed to ensure the introduction of tension control with high accuracy and sensitivity. Zero speed constant tension, tension and main machine wire speed linkage, to ensure the stable introduction of tension control. When switching from "plate washing" state to "printing" working state, the soft roll is pressed automatically and the operation is simple. The cylinder cushion floating roll system adopts the ultra-low friction cylinder tension closed-loop detection to effectively suppress the sudden impact and ensure the tension stability of the introduced part.
3. Lead out unit
The division of tension section is guaranteed to ensure the high precision and high sensitivity of outgoing tension control. Zero speed constant tension, tension and main machine wire speed linkage, to ensure stable tension control. When switching from "plate washing" to "printing", the soft roll is pressed automatically, and the floating roll system with simple cylinder cushion adopts the closed-loop tension detection of ultra-low friction cylinder to effectively suppress the sudden impact and ensure the tension stability of the introduced part.
4. Roll in Yuan
Automatic length counting, no downtime, saving time and improving production efficiency. The whole process can be completed automatically by pressing one "refueling" button, and the material receiving process is stable. High performance vector frequency conversion active winding, zero speed constant tension control, tension and host to achieve linkage, whether low-speed, high-speed have stable high-precision tension control. The danceroller system adopts the closed-loop detection of the tension of the low friction cylinder, and the tension is adjusted to the function curve correction, which effectively improves the deformation of the winding shaft caused by the uneven stress of the coil. The electric proportional valve can be selected as the tension taper curve.
5. Main motor unit
High performance vector frequency conversion control system, small interference by power grid fluctuation, high stability. Low speed full load start and motor linkage control.
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