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1. Product Description
1.1 Short Description
The 971 is a rotary unit for the sewing of e.g. flaps, strips and
waistband extensions as well as for the runstitching of cuffs.
The rotation concept makes possible an overlapping work method and
thus leads to high quantity outputs. Through an optimal work place
design, short reach distances and a high operational comfort are
achieved.
The 971 has work stations for feeding the material, for sewing, for
trimming the protruding cloth ends and for stacking the finished pieces
when sewn. They are feed via a turntable on which are mounted the
individual material holders. Depending on the sub-class partitions with
4, 6 or 8 material holders are available. When sewing cuffs the size
can be adjusted. The speed of rotation is continuously adjustable and
can be adjusted to meet the appropriate requirements.
Through a special tape roll holder cuffs whose face fabric has
previously been basted to a feed tape by a cuff basting unit and then
wound onto a tape roll can be runstitched.
The double chain stitch sewing head of the 971 is equipped with a
needle and hook thread monitor which automatically stops the sewing
unit by thread breakage or the end of the yarn.
Parallel trimming and the cutting of the warp is conducted at the
trimming head. With appropriate parts sets the trimming clearance can
be changed.
For drawing off the trimming residue suction units with single or two
sided suction are available. The appropriate air compressor can be
supplied in versions with different voltages.
1.2 Description of the Proper Use and the Proper Application
The 971 is a sewing unit designed for use in sewing from very light to
medium weight material. Such material is, as a rule, material
composed of textile fibers. This sewing material is used in the garment
industry.
In general, only dry material may be worked on this sewing unit. The
material may not be thicker than 3 mm when it is pressed together by
the closed material holder. The material may contain no hard elements
because the sewing and trimming heads must otherwise be operated
only with eye protection. Such an eye protection is, however, not
available at this time.
The seam is generally made with sewing yarns of textile fibers in the
size 80/2 Nm (synthetic) or 140/3 Nm (covering twist). Those wishing
to use other threads must first calulate the dangers arising from this
and take appropriate safety measures.
This sewing unit may only be installed and operated in dry and well
cared-for areas. If the sewing unit is used in other areas, which are not
dry and well cared-for, comprehensive, to be agreed upon, steps may
become necessary (see EN 60204-3-1:1990).
We as a manufacturer of industrial sewing machines assume that at
least semi-skilled personnel will work on our products, so that it can be
presumed all normal operations and, if applicable, their dangers are
known and recognized.
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