Slitting machine is to cut a large roll of paper, film, non-woven fabric, aluminum foil, mica into small rolls with different widths such as pre-press and post-press equipment. It is often used in papermaking machinery and printing and packaging machinery.
The traditional control scheme of the slitting machine is to use a large motor to drive the rewinding and unwinding shaft, add a magnetic powder clutch to the telescopic reel, and adjust the current to control the electromagnetic clutch that generates resistance to control the surface tension of the material. Electromagnetic clutches and brakes are special automatic actuators that transmit torque through magnetic powder filled in the working gap. Changing the magnetic current can change the magnetic state of the magnetic powder, thereby adjusting the transmission of torque. It can be used for stepless speed regulation from zero to synchronous speed, suitable for high-speed fine-tuning and small and medium power speed regulation systems. It is also used to adjust the torque by adjusting the current to ensure that the tension remains constant during the winding process. Unwinding or rewinding tension control system.
Tension Control
Magnetic braking device Slitting machine unwinding group, linked with transmission parts and air shaft, controls the unwinding speed by controlling the torque of the magnetic powder brake. The magnetic powder brake is selected according to the size of the whole roll material of the unwinding group of the slitting machine. The common specifications of the magnetic powder brake of the slitting machine are 12nm, 25nm, 50NM, 100NM, 200nm, and 400Nm. The main purpose of the magnetic powder brake of the slitter is to provide a balanced and stable torque. The tension controller can be used to adjust the torque, so that the efficiency and quality of the unwinding work of the slitter and the entire action can be improved.
The tension control of the magnetic powder brake is accurate and simple, which can prevent the material of the unwinding group of the slitting machine from moving. The magnetic powder brake of the slitting machine adopts DC24V DC voltage, and the heat dissipation can be natural cooling (air cooling) or forced cooling by the device fan. When installing, please keep the magnetic powder brake of the slitter on the horizontal axis and the surrounding environment should not be too humid.
Features:
1. Centralized panel operation, IC control. All parts of the machine are concentrated on the panel operation control.
2. The main functions of the panel: A. Spindle speed adjustment B. Rewinding length setting C. Unwinding tension adjustment D. Rewinding tension setting E. Start. stop button.
3. The cutting knife adopts upper and lower round knives. And the lower knife cushion can be replaced according to different cutting widths, and the cutting width can be adjusted to achieve high-quality cutting quality.
