Operation Manual

Technical Specifications
Operating Instructions 841 - 00.0 - 09/2014
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2 Technical Specifications
2.1 Sewing unit
THe Dürkopp-Adler 841-100-01 is a sewing unit for automatic sewing of
buttonholes on the fronts of shirts and blouses.
The sewing unit is made up of independent functional units like
infeed,feed and sewing stations and stacker that enable fully overlapping
work procedures.
In the infeed unit, the front section (sewing material) is placed along the a
stop and fixed on markings using a vacuum.
After the sewing material had been transferred to the feed unit, it is
transported to the sewing station in preprogrammed steps (button hole
intervals).
During sewing of buttonholes, the feed unit moves synchronous to the
feed motion of the sewing machine.
The infeed device is prepared for connection to a vacuum system at the
customer's site. A vacuum distributor with a filter can be supplied as an
additional device. This enables connection of up to 3 sewing units to a
vacuum system provided by the customer. If no vacuum system is
available, thevacuum fan needs to be ordered as additional equipment.
The vacuum power is sufficient for 3 sewing units.
2.2 Characteristics
• CNC double lock stitch button hole indexer
• Mechanical quick adjustment for distance of buttonholes to the fabric
edge
• Different buttonholes programmable in a sequence
• Variable sewing speed of 100 to 4000 r.p.m.
• 50 different buttonholes can be saved
• Selection of 2 external freely programmable buttonholes with
600 stitches
• Up to 20 programmable buttonholes can be merged in one sewing
sequence
• Saving of 20 sewing sequences
• 100 indexer programs can be saved
• Bundle processing: After a preselectable quantity, the machine stops
to empty the stacker
• Selectable bar shapes: crossbar (horizontal, vertical, split); wedged
bar; circular bar (radial, horizontal); eyelet bar, simple bar
• Soft start
• Day piece counter
• Hook thread counter
• Pressure monitor
• Pivot head