The slip shaft has many benefits for the slitting machine, but the slip shaft also has different types of structures, so it is also a hard work to choose a suitable slip shaft. At present, there are three main types of structures on the market: double air slide Differential shaft, central air pressure slip shaft, side pressure slip shaft.
1. Double air path slip shaft: The locking air pressure and the regulating air pressure are separated to realize continuous control from extremely low tension to large tension in a wide range. The roll is all based on one-finger pneumatic buttons, and there is no worry of shifting when the material is cut off in the middle. It is an innovative and upgraded version of the traditional central air pressure slip shaft. The latest offering of Jing Technology! Lock paper tube/plastic tube/aluminum tube/steel tube.
The Kataoka type is favored by users for its convenience and practicality, stability and toughness, precision and ease of operation, and adaptability to high-speed operation. Currently, high-speed winding of composite film and cigarette film is used! Expandable application areas are more extensive.
Representative products: Nishimura-type and Kataoka-type dual-airway slip shafts
Among them, the Nishimura style has the best performance. Its tension range and controllable performance are pleasant, comfortable, and arbitrary. All kinds of squeamish coils can be easily handled! The slitting and winding of metal foils such as lithium battery separator/pole piece, power battery pole piece, ultra-low tension PET film, electronic film, copper foil/aluminum foil, etc.
The Kataoka type is favored by users for its convenience and practicality, stability and toughness, precision and ease of operation, and adaptability to high-speed operation. Currently, high-speed winding of composite film and cigarette film is used! Expandable application areas are more extensive.
2. Central air pressure slip shaft: Input the corresponding air pressure into the shaft core air cavity (sac), and the compressed air presses the friction parts -- applies pressure to the slip ring -- to generate the corresponding friction torque. The air pressure is output from the electro-pneumatic proportional valve and is controlled by the PLC tension system. The system parameters are set according to different materials, thicknesses, and roll diameters. The constant tension is always maintained, and the range from low tension to large tension is continuously controllable.
The central air pressure slip shaft is divided into two types: pneumatic locking type and mechanical locking type.
1) Pneumatic locking type central air pressure slip shaft, the air pressure locks the core at the same time and generates friction torque, which can realize automatic unwinding, forward and reverse winding, and film breakage in the middle of winding without unwinding, no deviation, The control precision is high, and the constant tension winding is realized. The working air pressure is required to be more than 1KG, in order to grasp the tube core without rotation or displacement. The disadvantage is that it cannot be used in lower tension occasions. Lock paper tube/plastic tube/aluminum tube/steel tube.
Representative products: XC Nishimura slip shaft, DS Japan east extension slip shaft
In the past ten years, XC Nishimura slip shafts have been very successfully applied to the slitting and winding of metal foils such as lithium battery separators/pole pieces, power battery pole pieces, ultra-low tension PET film, electronic film, copper foil/aluminum foil, etc.
XC special form of ultra-low tension slip shaft can achieve extremely low friction tension, which is applied to slitting and winding of the thinnest (10μ) PET film/electronic film; ultra-narrow slip ring width of 20mm, applied to the narrowest film ( 10mm) slitting and winding.
