| 摘要 |
A motorized chuck-bearing group (2) for a printing machine, powered by a brushless motor, comprises a casing (20) housing a stator coil (25) and a rotor, controlled both in velocity and activation times by a control circuit comprising an encoder device, in which a shaft (24) supports permanent magnets (26) in a peripheral arrangement, the shaft (24) being coupled, internally of the casing (20), to the encoder device and extending outside the casing (20) such as to support a chuck which rotates an object to be printed (3). |
