BEN-V CREEL - KARL MAYER Textilmaschinenfabrik GmbH

BEN-V CREEL
For optimal warp quality and high productivity

Constant thread tension, over the entire length and width
of the warp
Your benefits
Highest quality
• Little stress on the threads
• Low thread tension
• Uniform thread tension, from back
to front
• No snarling
High productivity
• Speeds in practice of up to
1200 m/min
• Free yarn route
• No knotting when changing
package or lot
• Reduced cleaning and
maintenance outlay
• Simple package loading
• Automatic rotation of package
frames
• Simple placing of the threads in
the stop tensioner
Universal application
• Coarse to the finest staple fibre
yarns
• Single and doubled yarns
• Optional package formats usable
First-rate warp quality
The basis of the outstanding warp quality
is a low and uniform thread tensile force
and the free yarn route. The low tension
level results in a gentle yarn draw-off and
minimal end break frequency, positively
influencing the subsequent sizing and
weaving operations.
Wide field of application
Because lot changing involves no knotting,
but just redrawing-in, there are no prob -
lems, even when changing from single to
doubled or from extremely coarse to very
fine yarns. Also, differing yarn counts
between lots are no longer a problem, be -
cause the OPTOSTOP thread tensioners
are automatically activated.
Low tension level
Due to the absence of guiding elements
and deflection points, the thread tensile
force level is very low, even at speeds of
up to 1200 m/min.
The offset package arrangement permits
optimal space utilisation. The resulting
shorter creel length reduces air resistance
and hence, thread tension.
High productivity
The low level of tension is the most im -
portant requirement for high production
speeds. Accordingly with V-CREEL,
speeds in practice of 1200 m/min are by
no means uncommon. Moreover, the free
yarn route reduces down times with end
breaks and lot changing, as placing
threads in guiding elements is a thing of
the past.
2

Simple and practical package loading
1 2
3
Simple and practical package loading
As the threads are neither broken or knotted
on lot changing, it is simply a matter of
placing the packages on a spindle with
retaining disks.
No snarling
An automatic pretensioner prevents snarling
which can occur on stopping the
machine. The pretensioner automatically
takes up the correct position depending on
the phase in the warping process.
1. Extreme position on starting for the
correction of snarls
2. Working position for optimal thread
tension
3. Full opening on stop, for optimal
package access
Equalized thread tension
The pretensioners installed by BENNINGER
automatically compensate the thread
tension differences occurring due to the
variation in thread length from the rearmost
to the foremost package, permitting a uniform
thread tension and winding over the
entire warp width.
The automatic pretensioner is set so that a
corresponding wrap compensates the difference
in tension between the front and
rear threads.
Efficient balloon limiting
Due to their structure, rotor yarns have
special balloon dynamics. Ballooning is
three times greater with rotor yarns than
with ring spun yarns and has its maximum
elongation in the spaces between package
and tensioner.
Two round metal rods with a smooth and
friction-resistant surface achieve effective
balloon reduction.
Cut-off device
A cut-off device is provided for separating
the thread for lot changing.
The effortless running of the cutter bar with
rotating blades along the creel severs the
thread in a single action.
3

OPTOSTOP
Thread tensioner for warping creels with high productivity and
low thread tension
A universal stop tensioner
OPTOSTOP has been specially developed
for the direct beaming of staple fibre yarns
at high speed and an application range from
5 to 170 tex. The shape and the large jaw
area treat the yarn surface gently and avoid
twist push-back with resulting snarling.
Your benefits
Highest quality
• No loose ends shooting forwards
when stopping
• No snarling caused by twist
pushback
• Stop motions are self-activated by
pushbutton
• Warning display after repeated
breaks on the same end
• Continuous display of number of
running ends
• No threads lost at end break
High productivity
• Wide application range
• Low thread tensions for high
speeds
• End breaks are rapidly located
Safe stopping with no loose ends
No loose ends occur at high speed, even
with coarse yarns and long distances,
because the jaws close immediately when
the machine is stopped.
High speeds with low thread tensile
force
The jaws of the thread tensioner open
automatically shortly after the start of the
beamer. Thread tensile force from the
package is the sole determining factor for
a steady and dependable thread run. This
ensures that the tensile load on the
threads is low, even at high beaming
speeds.
Back beams with no missing ends
The optoelectronic stop motion integrated
in the OPTOSTOP tensioner monitors the
thread run right from crawl speed. It
detects an end break at once, whether this
occurs on the package or at the comb of
the beamer. In the event of a thread stoppage,
it responds in milliseconds, so that
no ends are lost.
4

Thread monitoring made easy
Signalling on the display permits the monitoring
of all running threads. Agreement
between beamer and creel is checked
before start enabling. Time-consuming
manual counting of threads is dispensed
with. Also a thing of the past is the manual
switching on and off of tensioner positions
with yarn count changes.
Integrated individual blow-off
An intermitten individual tensioner blow-off
assures a sure and clean tensioner function,
even with dust-sheeding yarns.
Each tensioner contains fine air jets which
keep the tensioner z one clean durin
beaming by intermitten pulses of air.
The air supply ist automatically controlled
and takes place cycically for two tensioner
posts simultaneously, to keep air consumption
to a minimum.
Support with end break repair
Signal lamps on the front of the creel and
on the relevant tensioner post indicate the
broken end. Flashing lamps signal re -
peated end breaks from the same
package, so that bad packages can be
identified and replaced where necessary.
BEN-V CREEL pitch program with number of running threads
horiz. vertical max. number running threads
pitch pitch packages ∅ of tiers
240 230 9 504 576 648 720 792 864 936 1008 1080 1152 1224 1296
270 255 8 448 512 576 640 704 768 832 896 960 1024 1088 1152
240 305 265 7 392 448 504 560 616 672 728 784 840 896 952 1008
350 278 6 384 432 480 528 576 624 672 720 768 816 864
435 305 5 320 360 400 440 480 520 560 600 640 680 720
horiz. vertical max. number running threads
pitch pitch packages ∅ of tiers
240 230 9 378 432 486 540 594 648 702 756 810 864 918 972
270 260 8 336 384 432 480 528 576 624 672 720 768 816 864
320 305 295 7 336 378 420 462 504 546 588 630 672 714 756
350 340 6 324 360 396 432 468 504 540 576 612 648
435 365 5 300 330 360 390 420 450 480 510 540
5

Integrated system solutions for better process safety.
• Direct
beaming
• Sectional
warping
• Sizing
• Indigo-dyeing
The excellent process know-how
of our employees and the quality of our
products and services are the guarantee
for reliable processes and low life cycle
costs.
Modular system concepts
ensure a high level of flexibility and
competitive strength.
BEN-SERVICE, the customer service
which ensures highest availability of the
plants, excellent yield and finest quality,
even after years.
The data and illustrations in the document correspond
to the technical level at the time of printing and do not constitute
a part of any offer. The right to make alterations is reserved.
KARL MAYER Textilmaschinenfabrik GmbH
Brühlstrasse 25
63179 Obertshausen / Germany
Phone +49 6104 4020
Fax +49 6104 402 600
E-Mail: info@karlmayer.de
www.karlmayer.de
KARL MAYER Textilmaschinen AG
Fabrikstrasse
CH-9240 Uzwil / Switzerland
Tel. +41 71 955 84 00
Fax +41 71 955 84 87
E-Mail: info@karlmayer.ch
www.karlmayer.ch
© Copyright Benninger AG, 676-d DF Ben-V Gatter_03.07/en/We-A 1027