| 摘要 |
<p>A method for shaping a slab of compressible or cellular polymer material (80), such as polyurethane foam, by cutting portions of the material from one surface. A moving patterned platform (32), preferably an endless belt or a series of interconnected panels, is interposed between a compression roller (56) and a support surface (46) and defines at least one recess (36). When the slab is compressed between the compression roller and the platform, which is supported by the support surface, a portion of the material fills the recess or recesses in the moving platform. At least a portion of the compressed material within the recesses is then cut from the surface of the slab by a blade (76) just as the slab emerges from between the compression roller and the platform leaving a profile-cut surface with cut-out portions corresponding in pattern and shape to the recesses provided on the moving patterned platform.</p> |
