【Xinhe Electromechanical Knows】Instructions for Use of Brake Tension Controller

In the winding process of many industrial production materials, due to changes in the material coil diameter and other factors, the material tension is constantly changing. In order to keep the material tension consistent, it is necessary to adjust the damping device's resistance torque or winding torque in time.
　　At the unwinding end, the tension of the unwinding material is determined by the torque of the magnetic powder brake installed at the unwinding end; at the winding end, the winding tension is determined by the transmission torque of the magnetic powder clutch. In order to maintain consistent tension, the transmission torque must be increased or decreased according to the size of the coil diameter. Tension control is divided into manual control and automatic control. The manual tension controller, which is a constant current power supply, manually adjusts the excitation current of the magnetic powder brake or magnetic powder clutch in stages according to the changes in the unwinding or winding coil diameter, thereby obtaining consistent tension.

PB type magnetic powder brake, to improve the cooling effect, an axial flow fan can also be installed at one end of the drive body, so continuous slip power is allowed to vary with input speed. It has been widely used in papermaking, printing, plastics, rubber, textiles, dyeing, wires and cables, etc.
 

PC type magnetic powder clutch, compressed air is blown into the gap to dissipate the heat generated by slippage to the outside. This structure can also be used as a natural cooling type. It has the advantages of fast response speed, simple structure, no pollution, no noise, no impact vibration, and energy saving.

Application range:
　　Papermaking, adhesive tape production, paper processing, wire and cable, printing industry, film, film industry, textile industry, rubber industry, metal foil processing, fiber industry, leather industry, optical fiber manufacturing
 

Working principle:

It adopts a DC switching constant current power supply. The power supply is output through a transformer, rectified and filtered, and the output current is adjusted by adjusting the pulse width duty cycle, which solves the problem of high voltage drop and serious heat generation of high-power transistors, making the overall structure compact and adding heat dissipation to improve reliability and stability.
　　How to use
　　Connect the RT terminals to a 220VAC power supply
　　 Manual Tension Controller The output terminals (P N) of the (constant current power supply) are connected to the coil terminals of the magnetic powder brake or magnetic powder clutch (these two wires are not positive or negative), and the power supply can be turned on to adjust the output current of the power supply arbitrarily within the range of 0.