| 摘要 |
The machine (1) has a blow mold (3) and a blow nozzle (2) that are vertically moved relative with respect to each other via an electromagnetic drive (7). The drive contains a magnet coil (11) for a predetermined stroke. A set of different lengths of stroke (H) is realized by the magnet coil. A predetermined force of pressure is applied electromagnetically for pressing the blow nozzle against the blow mold. The drive comprises ferromagnetic material or a permanent magnet. A spring is provided for a linear relation between electric current and the stroke. |
