| 摘要 |
<p>The invention relates to a device (10) and method for performing a packaging operation on an article. The device (10) is a packaging machine that includes a first track (58), a second track (60) provided in close proximity to the first track (58), at least one first and second carriage (52, 53) associated with a respective track, a drive system, and a control system (326). The drive system includes a plurality of active elements (Coil 1...Coil n) associated with each track and a reactive element (174) associated with each carriage (52, 53). The active elements (Coil 1...Coil n) are independently activated to produce and control relative movement between the first and second carriages (52, 53) around their respective tracks (58, 60). The control system (326) controls the activation of the active elements in order to provide independent control of motion parameters for the carriages (52, 53). A first and a second tool (70, 71) are associated with the first and second carriages (52, 53), respectively, for performing at least part of the packaging operation. The method includes mounting a plurality of carriages (52, 53) around tracks (58, 60), with each carrriage having a tool (70, 71), and controlling the movement of the carriages around the track so that the manufacturing operation can at least partially be conducted. The carriages are driven around the tracks by linear motors.</p> |
