Tension Control System Of Slitting Machine

Tension control system of slitting machine

1. Slitting machine unwinding tension detection system: The tension sensor detects it is a direct detection of tension, which is closely integrated with the machine, and has a detection method for moving parts. Usually two sensors are used in pairs, and they are mounted on the end shafts on both sides of the detection guide roller. By detecting the applied load on both sides of the guide roller, the material belt causes displacement or deformation of the tension sensor sensitive element, thereby detecting the actual tension value, and converting this tension data into a tension signal and feeding it back to the tension controller.

2. Attenuation and tension compensation of the slitting and unwinding tension of the slitting machine: It is generally believed that maintaining the constant tension of the aluminum foil during the unwinding and unwinding of the aluminum foil is beneficial to the performance quality of the aluminum foil finished product. The best method is to increase the tension of the aluminum foil according to a certain rule as the diameter or weight of the roll increases, and the smaller the diameter and weight, the more the tension value will decrease. Because there are automatic tension control and manual tension control in the slitting operation. Manual tension control requires the operator to continuously adjust according to the diameter and weight of the master batch.

The automatic tension control system is a pre-set tension attenuation value, which is attenuated according to the change of the material roll during the operation of the equipment. When setting the automatic tension operation, the initial tension should be set first, and then the tension attenuation value should be set. Take the attenuation value at the unwinding position of the slit aluminum foil as an example. The setting principle is: the aluminum foil tension attenuation value (%) is equal to the tension at the end of the winding of the aluminum foil minus the initial tension and then divided by the initial tension. The quotient is then multiplied by 100%. When setting the automatic tension value, it should not be too large, otherwise the aluminum foil winding surface has a high hardness and is prone to warping, but the tension should not be too small. Too small may cause the rewinding body to be too loose and the winding will not run sideways. Therefore, the quality of rewinding and unwinding during the aluminum foil slitting operation is mainly affected by the change of the tension of the aluminum foil. It can be seen that mastering the control system of rewinding and unwinding is the key to affecting the quality.