Inflatable Shaft Production

 1. The air expansion shaft (air expansion shaft) is generally made according to the needs of practical applications. There are no standard items, and different types are selected according to actual needs. Common types include aluminum alloy air expansion shaft, expansion key type air expansion shaft and blade type air expansion shaft, and some distinguish between metal and non-metal.

       2. The inflation shaft is generally designed by the user and supplied to the manufacturer of the inflation shaft. At the same time, the ordering requirements must be attached, such as the weight of the inflation shaft, the material and its accuracy requirements. The manufacturer will perform technical evaluation based on the drawings and other requirements provided by the user before production.

       3. The air-expansion shaft is used as a special equipment for special winding and unwinding. It is usually used with magnetic powder brake, magnetic powder clutch and tension controller. Applications are very wide, such as coating machinery, slitting machinery, cross-cutting machinery, laminating machinery, laminating machinery, blown film machinery, papermaking machinery, non-woven machinery, fabric inspection machinery and other mechanical rewinding systems.
       The main body of the convex key air-expansion shaft is made of high-quality steel pipe, the surface is chrome-plated, and the aluminum convex key is flexible and flexible; the high-quality rubber liner and the fast filling and exhausting nozzle are arranged, the sealing effect is good, the service life is long, the shaft head can be disassembled, and the maintenance is convenient. After the inflation of the male key, the unilateral expansion height can reach 5mm to 6mm. For example, the diameter before expansion is 74mm to 75mm, and the diameter after expansion can reach 79mm to 82mm. The special expansion height is separately required. 3 inch key type air expansion shaft, usually using the inner diameter of the coil tube 76mm, the convex key expansion shaft is a single key strip, the fulcrum spreads to each key strip, balances the force, and can be applied to articles with heavy mechanical load capacity. .

       The separation and placement of the inflation shaft and the paper tube takes only 3 seconds to complete the inflation and deflation, and does not require any part of the shaft end side to be tightly engaged with the paper tube. The gas riser shaft is better than the normal shaft because the unloading does not require the entire shaft to be removed. After deflation, the material can be removed, because its width is not large, so the operation is more convenient. This is also the inflation shaft selected by many machines that are light in weight and small in width. Regional maintenance is a post responsibility system that strengthens equipment maintenance management to provide production services and mobilize the enthusiasm of maintenance workers.

      Although the inflation shaft is called more, the working principle is the same. The air expansion shaft and the air expansion sleeve are extremely convenient and quick to use. It only needs to be self-contained, and the air pressure is controlled within the range of 6-8kg/cm2. For components (such as round paper tubes), as long as the air gun is inflated against the air nozzle on the inflatable shaft, against external components (such as a circular paper tube), you need to loosen the paper when unloading Press the sliding outer part of the nozzle (such as a round paper tube) to remove it.

      The metal frame of the inflatable shaft is dug out of a box-type window at the fixed end of the operating side of the cantilever mandrel to ensure the structural rigidity of the printing platform. The bearing seat is mounted on the inside of the movable steel block, and the steel block is high. The precision ball screw drive, the moving position of the air shaft is on the center line of the plate mandrel, and the linear guides are respectively installed at the upper and lower ends of the box window to fix the moving steel block, thereby ensuring the printing platform is running at high speed. Stable. In this design, the fixing of the mandrel is completely automatic, and the movement of the entire screw and the locking of the shaft end eliminate the human factor. The moving steel block is fixed to the frame by two upper and lower linear guide rails, and since the screw rod moves on the center line of the plate roller mandrel, the thrust of the center impression cylinder against the plate roller and the driving force along the direction of the ball screw are both effective. At the center of the plate mandrel, only a small partial pressure is formed, and since the force load acts only on the center of the plate mandrel, there is no torque on the support frame.