| 摘要 |
The invention relates to a method for cutting block materials, in particular foamed or expanded materials, wherein a cutter element (5) having a first and a second end (5a, 5b) is driven in a translatory manner to perform a movement to and fro in the longitudinal direction. The first and second ends (5a, 5b) of the cutter element (5) are driven, wherein the drive of the first end (5a) of the cutter element (5) takes place by transforming a first rotary movement into a first translatory movement and the drive of the second end (5b) of the cutter element (5) takes place by transforming a second rotary movement into a second translatory movement that is in the same direction as the first translatory movement. Based on complete revolutions, the rotational speed of the first rotary movement is the same as the rotational speed of the second rotary movement, and, when there is a reversal of the first and second rotary movements, the first rotary movement has a greater angular velocity in a first and a second portion of the revolution than the second rotary movement and the second rotary movement has a greater angular velocity than the first rotary movement in a third and a fourth portion of the revolution, and the first and second rotary movements have the same angular velocity at the beginning and end of a revolution and at the transition between the second and third portions of the revolution. |
