Introduction to the slip shaft and air expansion shaft of the slitting machine

Slip shafts and air-inflating shafts are often used as winding or unwinding shafts in the production process of slitting machines. After high-pressure inflation, the key strip on the surface of the air expansion shaft will expand to lock the paper core. After deflation, the key strip will return to its original position and the roll can be removed. It is widely used in the rewinding and unwinding of slitting machines.
The slip shaft uses the principle of independent slipping of slip rings to balance the tension of multiple sets of coils. The structure is more complex and the cost is more expensive. It is mostly used in the rewinding mechanism of slitting machines. It can also be used in unwinding in certain situations. Introduction to the air-inflating shaft of the slitting machine. The air-inflating shaft of the slitting machine has many names. It can also be called an air-inflating roller, a pressure shaft, an inflating shaft, a pneumatic shaft, an expansion shaft, an inflatable shaft, etc.
Generally, there is a round air bag inside the air expansion shaft. About 7 kilograms of compressed air is filled through the air nozzle for expansion. The key bar or slat is lifted up to fix the winding core. When unloading, just press the air nozzle with your hand to release the air. Discharge and pull out the roll.
According to the different structures of the expansion parts, they can be divided into key bar type air expansion shafts, tile type air expansion shafts, long straight bar type air expansion shafts, etc. The key bar type air expansion shaft is also called the convex key type air expansion shaft. The expansion part is the key bar. The expansion height can reach about 5mm on one side. The key bar supports the balanced force and is suitable for the slitting machine to carry and rewind the heavier rolls. material.
The tile-type inflatable shaft is also called the slat-type inflatable shaft. The expanded plate has a larger stress area and the fulcrum is more evenly stressed. Compared with the key-type inflatable shaft, the placement requirements of the plate-type inflatable shaft are relatively Relatively loose, suitable for slitting machines with higher winding precision or lighter weight rolls.
The straight bar type air shaft adopts an integral long key. This type of air shaft is suitable for the rewinding work of high-precision slitting machines, especially some narrow-width film rolls. In addition, cantilevered air-expanding shafts, multi-air bag air-expanding shafts and other structural forms will be designed according to needs.