| 摘要 |
The invention relates to an injection molding machine in which the injection molding unit (S) and the mold-closing unit are at least partially operated b y electrical drive units in the form of a linear motor. The rotor and the stat or of said linear motor have cylindrical lateral surfaces (11, 12), these cylindrical lateral surfaces of the stator and the rotor being arranged concentrically and the stator windings being essentially symmetrical to the a- a axis of motion of the linear motor. According to the invention, several equally acting first lateral surfaces (11) are interleaved with a corresponding number of equally acting other lateral surfaces (12) and the first and/or other lateral surfaces can be operated together, respectively, so that they cooperate. This results in a linear motor which is able to provide the advance forces that are required for injection molding machines.
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