1. Slitting machine is a kind of mechanical equipment that cuts wide-width paper or film into multiple narrow-width materials.
It is often used in paper machines and printing and packaging machinery.
2. The transmission part is mainly composed of three parts: wide-width unwinding, slitting and pulling, and narrow-width winding.
It is required that the paper or film is in a state of constant tension during the entire processing process.
1. Unwinding part: one set of EM303A series open-loop vector control frequency converter, working in the torque output state,
the torque setting direction is opposite to the unwinding direction, and the current coil is calculated in real time according to the material thickness,
processing line speed and maximum coil diameter. diameter, adjust the motor output torque to ensure constant tension during the unwinding process.
The setting of the automatic voltage stabilization function of the inverter is valid. Built-in braking unit, optional braking resistor according to motor power.
2. Slitting traction part: one set of EM303A series open-loop vector inverter, working in the speed output state,
the slitting processing speed is generally adjusted by the potentiometer, and its frequency output port is used as the actual processing line speed signal,
connected to the unwinding and Winding frequency converter.
3. Winding part: Two sets of EM303A series open-loop vector control inverters, both of which work in the torque output state.
The torque setting direction is the same as the winding direction. According to the material thickness, processing line speed, and small winding diameter,
real-time calculation Adjust the output torque of the motor for the current roll diameter to ensure constant tension during the winding process
1. The system all works in an open-loop state, with simple structure, easy operation and debugging, low cost, high reliability and maintenance-free.
2. The EM303A series open-loop vector inverter torque working mode also provides the functions of moment of inertia compensation and static friction compensation,
which improves the system response speed, makes the control of high-speed cutting a reality, and can achieve better control of constant tension winding and unwinding Effect,
overcome the inherent weakness of magnetic powder tension control, and greatly improve the reliability of the equipment.
3. Timely setting of tension taper ensures the quality of winding and avoids inner tightness and outer looseness or outer tightness and inner looseness.
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