| 摘要 |
<p>The device has an auxiliary device (21) with two retaining units (31, 35), where the retaining unit (31) extends transverse to a longitudinal extension of a web (9) and over a breadth of the web. The unit (35) is movable opposite to the retaining unit (31) in opening and closing positions. The retaining units have magnet bars (38) that hold the one of the retaining units in the closing position. An area (48) for receiving of a web origin is formed between the retaining units in the opening position, where the retaining units lie against each other below an intermediate layer of the web origin in the closing position. One of the retaining units is formed from a magnetizable material e.g. iron and alloy of nickel, aluminum and cobalt.</p> |
