Tension control principle of oscillating roller

The pneumatic principle of low friction cylinder and floating roller is adopted.

1. Low-friction cylinder: reduce the friction between piston and cylinder, so that the cylinder can respond to the control signal faster and realize accurate tension adjustment. By reducing the fluctuation of gas pressure at the inlet, the precision pressure regulating valve avoids the fluctuation of the oscillating roller, thus stabilizing the tension control.

2. Floating roller: The wrap angle of the floating roller should be kept large enough to prevent the cylinder from rushing forward too fast and producing impact. At the same time, the exhaust speed of the cylinder is controlled by the throttle valve, which makes the cylinder generate back pressure and further stabilizes the tension control.