Patent ID: 8042460

Claim:
A head unit for coil packaging, which provides a front end of a band supplied for coil packaging to a robot for winding the band on the coil, and fastens the front end of the band to the band as the robot provides the front end of the band wound on the coil, the head unit comprising: a band transfer unit that transfers the front end of the band to a position at which the robot can grip the front end of the band, and transfers the front end of the band such that it overlaps with the band as the robot provides the front end of the band wound on the coil; and a band fastening unit that fastens the front end of the band to the band; wherein the band transfer unit comprises: a driving motor that provides rotatory power for transferring the band; a transfer roller that supports the band and is rotated by the driving motor to transfer the band to the position at which the robot can grip the front end of the band; a backup roller that presses the band supported by the transfer roller and is rotated in conjunction with the transfer roller; and a backup cylinder coupled with a rotational shaft of the backup roller and pressing the backup roller toward the transfer roller when the band is transferred, and separating the backup roller from the transfer roller when the band is drawn out by the robot.