| 摘要 |
<p>A cutting head including a carriage 98 has a cutting blade assembly fixed relative to the carriage for movement between an upper position, and a lower position. The cutting blade assembly includes a cutting blade for cutting a sheet material. In one embodiment, the cutting blade assembly is pivotally fixed to the carriage, hi another embodiment, a first motor is operatively connected to the cutting blade assembly to move the cutting blade assembly between the upper position and the lower position and a second motor is operatively connected to the cutting blade to move the cutting blade between an extended position and a retracted position.</p> |
