(57) Procedure and device for cutting pieces of material to order, from a band of material,
by using a cutting table equipped with a vacuum installation for holding the band
of material in place and a workable, longitudinal and traverse slide on the cutting
table, running along the desired cutting lines, which is controlled by a data processor
for marking and data control, as the carrier of a cutting tool driven by ultrasound,
for the purpose of which a conveyor belt with a base similar to a brush serves as
the means of transport for the band of material in the cutting area and as a cutting
base, which is moved, step by step, by means of a slide range that, for the finished
cut of a piece of material, is larger than the cutting tool's most ample movement
in the longitudinal direction (X), for which purpose, the cutting tool in each case
is only moved following the transportation phase, with the conveyor belt being stationary
all along the cutting lines.
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