P72 :Layout 1 16/07/2009 10:54 Page 72
MACHINERY NEWS
Driving for a change
Printwear & Promotion takes a
look at the new DM series
embroidery machines from the
Korean SWF stable – built to
meet the demand for higher
speed and improved quality
K
orean embroidery machine manufacturer
SWF are renowned worldwide for their high
quality machines. Their inventive side has
continually pushed the boundaries and with the
With the new SWF
drive system the
new DM series they have done it again – but this frame makes a single
time they have looked more under the bonnet.
diagonal movement.
The biggest of the developments relates to the
motors that drive the pantograph (main frame of
the machine). These motors are key to the quality machines and, while this has improved over the you regularly work with unusual media such as
of embroidery that the machine produces. years, there is still a limit. And while the new drive Jiffy foam you will, for example, be able to set
There are, of course, other variables but the motors system will not remove this ceiling altogether, it needle 15 for the foam and leave it as opposed to
and the other parts responsible for the movement goes a long way towards allowing an overall continually re-setting it. This feature alone will
of the pantograph are critical to quality stitching. increase in the speed. And, as the SWF DM multi- save some of you valuable time but when you put
Firstly, though, here’s how a ‘standard’ system head model’s top speed is 1500spm (compared these two breakthrough developments together
works. The movement of the frame is controlled on with up to 1000spm for other manufacturers), then the benefits are many.
the X and the Y axis. When a pattern is digitised, then the benefit is clear to see. While working on the DM series, SWF were also
the coordinates to move the frame from one place Even at 85% of maximum, the machines will run concurrently developing what was to become
to another are embedded into the pattern, at 1200spm (850spm for other manufacturers). known as the K series, with improvements such as
commonly called machine data. For years, this type of advance has been sought a larger LCD screen incorporating a new design
To move the frame in a straight line needs only after by all of the major manufacturers but without transfer system, a newly designed thread path and
one instruction so a prompt to move 2cms to the success. a new direct drive lower thread trim system – all
left is an instruction for the frame to move -2cm As an additional bonus, this new type of motor of which are used on the DM.
on the X axis. requires no maintenance. Changing the motors, Three other significant changes however were also
To move on the diagonal, the machine is though, was not enough in itself to achieve the to be used on the DM: the new voltage indicator
effectively making a series of double movements, maximum benefit. They also looked at the way the and regulator, the direct pump feed lubrication
one on the X and one on the Y axis but with the motors connected to, and drove, the pantograph system and an increase in the body and beam
new SWF drive system, the frame only makes a and so replaced the usual belts and pulleys with a strength.
single diagonal movement. rack and pinion style drive resulting in a reduced The voltage indicator and controller has only one
The new motors do not operate in steps of level of maintenance and an improvement in both purpose in life which is to report on and smooth
movement, as most do, but rather in a linear output and quality. out the power delivered to your machine thus
fashion, meaning the machine takes a shorter A further major change on the DM is the new, preventing the dips and spikes that can, at worst,
route – getting from A to B much faster, with independently adjustable presser foot. This works damage your machine.
smoother and more accurate targeting. by having an independent lift drive for each The direct feed oiling system consists of a pumping
The way the pantograph moves has also been a presser foot allowing individual adjustment. This arrangement that feeds oil to most areas of the
factor in holding back the top speed of embroidery has many advantages but the main one is that if machine with a single movement. This system
reaches everywhere except the sewing hook and is
certainly quicker than using an oil can.
The third item, the increase in strength, eradicates
the increased vibration that comes with higher
speeds. By increasing the strength in the beam
and body SWF have reduced to zero the vibration
from this machine. Even at 1500spm the thread
stand, the usual giveaway, does not move. To
achieve this SWF have put 25% more steel into
the build than a standard SWF machine – 75%
more than some other manufacturers.
For further information contact Your Embroidery
Services Ltd. on 01623 863343 or e-mail them at
sales@yesltd.co.uk or go to websiite
www.yesltd.co.uk
| 72 | August 2009 www.printwearandpromotion.co.uk
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