Expanding Chuck

The radial engagement of the two component expansion cylinders with the expansion core is a rigid fit, based on the use of a rigid connection between the two, using the expansion key to support the sleeve, rigidly connecting the sleeve to the expansion shaft to ensure coaxiality. Such a rigid connection avoids the normal work due to excessive load or other external forces during the entire operation.
The flexible connecting part refers to the connection between the two components of the expansion key and the airbag. Because the airbag is soft, it can only be a flexible connection, because the expansion during operation is a flexible connection, and the external pressure Constantly increasing, the strength of the rotation and the change will also affect the use of the connection, which requires regular attention to this aspect of work when using.

Technique parameter

The inflatable shaft and the slip sleeve are composed of two major parts. The air expansion shaft adopts the central air pressure control. According to the user model, the online adjustment can be realized without stopping the machine, so that the piston on the shaft is ejected, and each slip sleeve is braked to expand the sliding key, and the paper tube (plastic tube, nylon tube) is fixed. Wait). The torque force of each slip sleeve is adjusted according to the inflation pressure to achieve the adjustment of the required tension of each roll of material on the dividing line, so that the sliding sleeves are relatively slid and the linear speed is automatically adjusted.

Therefore, the mechanical slip axis is solved, and the problem of broken strips, loose rolls, unwinding, etc. caused by the change of the unevenness of the material thickness during the winding of the common air-expansion shaft is avoided, thereby avoiding the material loss caused thereby. And can collect large and small rolls at the same time on the unified slip air shaft. The winding speed is higher. Because the air pressure can be adjusted without stopping, the machine adaptability and work efficiency are greatly improved.

Therefore, we need to pay attention to the following 6 points when installing the air shaft:
1. When installing the air-expansion shaft, the first thing to be determined is that the compressor that controls the gas pressure is in a stable state, and a filter is directly installed between the compressor and the air-expansion shaft to prevent impurities from clogging the gas pipe, thereby causing air leakage. ;
2. The direction of entry of air should be vertical to prevent damage to the valve;
3. When exhausting, it is necessary to use the standard exhaust port, and it is forbidden to use tools such as sharp hammer to avoid air leakage;
4. Install pressure gauge and pressure control device, and the air pressure must be controlled within the range of 3-8kg/cm;
5. When replacing the air nozzle, the socket wrench must be used. If there is a fault inside and need to be disassembled and repaired, please ask the professional maintenance personnel not to disassemble it yourself to avoid unnecessary loss;
6, be careful to gently put, so as not to hurt the valve.

Packing

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