| 摘要 |
<p>The slider (11) carrying the secondary reel (7) of the package personalizing strip (107) is controlled by a servosystem (112-113-15) for precision movement, this system being provided with a transducer which generates an electrical signal for the linear movement of the said slider, so that this movement may be controlled electronically. Means (17-18) for resetting the position of the said slide, at least at the start of the operation of the packaging machine, are also provided. A control logic unit (19) receives at its inputs the signals from the said transducer, from the said resetting means and from the known means (6) which measure the dimensions of the product (5) cyclically introduced into the packaging station. Finally, means (20) are provided for the programming and interrogation of the said control logic unit, to ensure that, when the format of the product to be packaged changes, the secondary reel (7) is automatically aligned in the predetermined position of the packaging film (101). <IMAGE></p> |
