Operation Manual

1. Product Description
The
DÜRKOPP 743-121
is a sewing unit for the automated sewing of
single-point darts
with straight or curved seam configurations.
Maximum seam length 150 mm.
•
The unit is equipped with a machine head in double chain stitch
execution.
•
A configuration set appropriate to the seam configuration holds
and guides the material.
•
The seam length control occurs either via light barrier or
programming, as desired.
•
Seam securing at the beginning and end of the seam through stitch
condensing in the material and thread chain
•
Thread trimming system: Controlled chain trimmer
•
Transport carriage drive via step motor.
•
The complete control of the sewing unit occurs through a
micro-computer. It assumes the control tasks, monitors the sewing
process and signals operating errors and malfunctions.
•
An electronic thread monitor prevents a renewed starting of the
sewing procedure by thread breakage or when the thread is used
up.
1.1 Technical Specification
Machine head: Class 935 - 171 -100
Needle system: 934 SIN
Needle thickness: Nm 90
Threads: As needle and bobbin thread spun
monofilament sewing threads
Stitch type: 401 Double chain stitch
Stitch number: 4.800 / min
Stitch length: 2,2 mm
Stitch condensing: 1,0 mm
Sewing length: 150 mm
Folding table: 0 - 10° adjustable
Operating pressure: 6 bar
Air consumption: approx. 5 NL per work cycle
Nominal voltage: 0743 000524 3 ~ 380 - 400 V + N, 50 Hz
0743 000574 3 ~ 220 - 230 V, 50 Hz
0743 000644 3 ~ 220 - 230 V, 60 Hz
The sewing unit is delivered with
one
of the listed voltage sets
appropriate to the nominal voltage.
1.2 Patents
Following patents and registered utility models apply:
Status September 1993
42 28 943
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