The purpose of the pneumatic chuck of the gluing machine's shaftless air expansion chuck in this utility model is to overcome the deficiencies in the prior art. It uses inflatable movable jaws to secure the core, offering advantages such as stable rotation, neat winding, and easy core replacement.

With left and right shaftless chuck devices for winding and unwinding, operators can visually determine whether the two transmission shafts are aligned. It enables automatic centering of the pneumatic mechanical chuck and features a deviation correction function.

Shaftless Winding Air Expansion ChuckFunctional Features:

1. High Torque, No Slippage

The chuck is composed of a tooth-like structure, which increases grip without causing significant wear. Despite its compact size, it prevents slippage, transmits substantial torque, and achieves high-speed unwinding.

2. Consistent Transmitted Torque

Unaffected by installation errors, the transmitted torque remains largely constant regardless of rotational speed.

3. Simple Assembly, Strong Compatibility

Due to its integrated structure, it can be directly mounted onto the frame during installation. The universal chuck for 3-inch and 6-inch cores has a wide range of applications and can be used directly without disassembly or replacement.

4. Superior Response Performance

Connection and disconnection occur instantaneously, ensuring a long service life.

5. Capable of High-Speed Connection

Powered by pneumatic action, it allows for connection during high-speed rotation compared to electromagnetic types.

6. Single Air Circuit Achieves Dual Air Circuit Effect

Thanks to the clever internal design of the chuck, a single air circuit can deliver the effect of a dual air circuit.