Apparatus and method for segmenting continuous webs into predetermined lengths

摘要

An apparatus and method for cutting continuous webs (W) having varying thicknesses, widths, and compositions into sheets. The apparatus includes a pair of oppositely rotating web feed assemblies (12,13) employing a unique floating nip and clamping mechanism which engages the web (W) and advances it a specified length past a poised cutting blade assembly (31) and onto a simultaneously driven exit assembly. After the desired length of web (W) has been fed, the drive mechanisms stop, and the cutting blade assembly (31) cycles to clamp the web (W) on the downstream side and cut. During the cutting stroke the web (W) is held taut on the upstream side by the web feed assemblies (12,13). Upon completion of the clamping and cutting stroke, the cutting blade assembly (31) returns and stops at its poised position.