Magnetic Powder Brakes And Tension Controllers Used in Slitting Machines

Slitting machine is a kind of mechanical equipment that slits wide paper, mica tape or film into multiple narrow strips, and is commonly used in papermaking machinery, wire and cable mica tape and printing and packaging machinery. The slitting machine is mainly used in: non-woven fabrics; Mica tape, paper, insulating materials and various film materials slitting, especially suitable for narrow strips (non-woven fabrics, paper, insulating materials, mica tape, film, etc.).

The magnetic powder brake device of the slitting machine unwinding group of the slitting machine is connected with the inflatable shaft with the transmission part, and the speed of unwinding is controlled by controlling the torque of the magnetic powder brake. According to the size of the whole roll of 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, 400Nm. The magnetic powder brake of the slitting machine is mainly to provide a balanced and stable torque, which can be adjusted with the tension controller, so that the efficiency and quality of the unwinding work of the slitting machine and the whole action can be improved.
The magnetic powder brake of the slitting machine adopts DC24V DC voltage, and the heat dissipation can be selected for natural cooling (air cooling) or the device fan for forced heat dissipation. When installing, please keep the magnetic powder brake of the slitter on the horizontal axis and the surrounding environment can not be too humid, etc.

The function of the tension controller is to realize the constant tension control of the coil, or to realize the taper control of the coil tension. The slitting machine tension controller is composed of a magnetic powder brake and a clutch, and the stability of the slitting machine tension controller is directly related to the quality of the slitting product. If the tension is insufficient, the raw material will drift during operation, and the finished paper will wrinkle after slitting and rewinding; If the tension is too large, the raw material is easy to be pulled off, so that the broken end of the finished paper after slitting and rewinding increases.

Tension sensor detection is a direct detection of tension, which is closely combined with machinery and has a detection method for moving parts. Usually two sensors are paired and mounted on the end shafts on both sides of the inspection roller. By detecting the applied load on both sides of the guide roller, the strip displaces or deforms the sensitive elements of the tension sensor, so as to detect the actual tension value, and converts the tension data into a tension signal and feeds back to the tension controller.

The magnetic particle clutch is used to control the torque of the input winding roller to achieve tension control: the magnetic particle clutch is composed of the driving part and the driven part, which is connected to the winding roller through the transmission mechanism such as universal coupling, and the fine ferromagnetic powder is filled in the middle as the torque transmission medium. A certain current is introduced into the excitation coil to form a magnetic field, and the magnetic particle is magnetized. When the magnetized magnetic particles rotate at a constant speed, the connection force between the magnetic particles is destroyed and a circumferential tangential force is formed, and the product of the tangential force and the radius of the magnetic powder circle is the rotating torque that drives the rewinding of the driven part, so as to realize the coupling of the output torque from the active part to the driven part in the continuous rotation, so as to achieve the purpose of controlling the tension.

Contact factory in Guangdong, China

(Over 20 years experience in magnetic powder brake,clutch and tension controller production )