APPARATUS AND METHOD FOR CUTTING FORMABLE AND/OR COLLAPSIBLE MATERIALS

摘要

Extrudate 10 materials that are in a formable and/or collapsible state present multiple challenges for cutting into lengths, particularly when the extrusion profile Includes one or more openings 12 (e.g., running the length of the extrudate 10). The invention is directed at apparatus, devices, systems and methods for cutting the extrudate 10. A cut 64 (e.g., and initial cut) into the extrudate 10 is performed using an ultrasonic knife 27 that vibrates at one or more frequencies. Preferably the cut using the ultrasonic knife 27 is a partial cut 64. A further cut through the extrudate 10 may be made using a secondary cutting tool such as a wire cutter 68. The secondary cutting tool preferably creates a final cut 66 through the extrudate profile, for cutting a part to a length. The ultrasonic knife 27 preferably travels In the horizontal direction at a rate faster than the extrudate 10 while cutting.

主权项

1. An apparatus for cutting an extrudate comprising:
an ultrasonic knife that vibrates at one or more frequencies for making one or more precuts into an extrudate; and one or more wire cutters for making a final cut into the extrudate; so that an extruded part having a predetermined length may be cut from the extrudate.