Multi-airbag Through-key Inflatable Shaft

Definition of multi-balloon through-key inflatable shaft:
A through-key inflatable shaft is a type of inflatable shaft that uses through-hole and key connections. It has better balance and rigidity, and is able to adapt to different diameters of coils. It is easy and fast to fix the working piece. It can be used for smaller work pieces and can provide high accuracy and stability. The disadvantage of the through-key inflatable shaft is that it is complex to manufacture and difficult to maintain and replace the key.

Features of multi-airbag through-key inflatable shaft:
The airbags and key strips are evenly arranged on the periphery, and the whole shaft has good balance, which is suitable for machines with high linear speed; Multiple groups of airbags are evenly arranged on the shaft body, and the air intake valve is shared to ensure the concentric beat; The length of multiple sets of airbag glue key strips is uninterrupted from the shaft head to the end of the shaft, which is convenient to insert multi-roll material to any position of the shaft; All the expansion parts are on the surface of the shaft body, easy to repair and replace, just simply loosen the beads at both ends, and take out the key strips to easily replace the airbags, with high efficiency. The key bar is different from the cross key, it is a key bar on the flatulence part of the convex key, with high runout tolerance accuracy and strong load-bearing capacity.

Working principle of through-key inflatable shaft:
With the principle of air compression, the outer diameter of the shaft is changed, and then it is tightly combined with the coil pipe, which is convenient for the sending and winding of the whole coil of material and promotes the operation of the production line
reasonable, simple, accurate and automated; When air is injected into the interior and expands, the parts inside the shaft body are expanded and extruded, and become outside the shaft body
The increased diameter allows the reel to be fixed on the shaft body with full width and precision. When the internal air is released, the expansion of the extruded part is retracted, and the shaft can be retracted
It is very convenient to be taken out.

Advantages and application scenarios of multi-airbag through-key inflatable shaft:
Advantage: The through-key inflatable shaft has easy and quick installation adjustment, and can adapt to different diameters of paper rolls or bobbins. It is able to provide reliable torque transfer and maintain a stable roll or bobbin position.
Application scenario: The through-key inflatable shaft is often used in scenarios that require frequent loading and unloading, such as printing machinery and textile machinery.

The use process of multi-airbag through-key inflatable shaft:
The multi-airbag through-key inflatable shaft is a special rewinding, unwinding shaft, that is, the shaft that can be inflated on the surface after high-pressure inflation, and the shaft that the surface part is quickly retracted after deflation is called the inflatable shaft. As long as the user provides his own air source, the air pressure is controlled in the range of 6-8 kg, when the reel core needs to be locked, as long as the inflatable handle is inflated against the air nozzle on the inflatable shaft, when the reel core needs to be loosened and discharged, the sliding air core on the air nozzle can be deflated by hand, and the rewinding width of the coil is required to be > by the long key inflatable shaft10MM, And for the thinner paper core, the shaft can be fixed in contact with the inner wall of the center, therefore, the deformation of the paper tube can be reduced, and the air pressure changes to maintain a good roundness, so that the end face of the slitting is neat. The surface of the shaft is made up of slats, distributed in equal parts around the circumference, made of aluminium alloy with strip cogging and anodic hardened for durability.

The installation process of multi-airbag through-key inflatable shaft replacement airbag:
1. When installing the air expansion shaft, first make sure that the compressor that controls the air pressure is in a stable state, and install a filter directly between the compressor and the air expansion shaft to prevent impurities from blocking the air pipe and causing air leakage
2. The direction of the air inlet should be vertical to prevent damage to the valve
3. When exhausting, a standard exhaust port must be used. It is strictly forbidden to use tools such as sharp hammers to avoid air leakage
4. When installing the pressure gauge and pressure control device, the air pressure must be controlled in the range of 3-8kg/cm
5. When replacing the air nozzle, a socket wrench must be used. If there is an internal fault that needs to be disassembled and repaired, professional maintenance personnel should be asked for maintenance. Do not disassemble it by yourself to avoid unnecessary losses.
6. Handle with care to avoid damaging the valve.

The process of replacing the airbag with a multi-bag through-key inflatable shaft:
1. Preparation
Move the through-button inflatable shaft to an open area to avoid accidents during the airbag replacement process. At the same time, prepare new airbags and tools needed to replace them, such as wrenches, air valves, etc.
2. Remove the old airbag
The airbag of the through-key inflatable shaft is usually located at the bottom of the machine. Use a wrench to unscrew the two attachment screws of the old airbag and slowly remove the airbag.
3. Install a new airbag
Install the new airbag into the airbag slot and fix it tightly with screws to ensure that the airbag is firmly connected. Then, attach the balloon to the trachea and connect it to the air source with a valve.
4. Check the airbag connection
Make sure all connections are tightly connected and open the air valve under the air source to test to ensure that the air bag can be inflated and deflated properly.
5. Test the new airbags
Turn on the switch of the through-button inflatable shaft and inflate it automatically, and observe the load carrying capacity of the new airbag. If a problem is found, stop using it immediately and check the connection of the airbag.
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