Weaving Machinery,Presentation of Dornier Air Jet Weaving Machine System

1. 20.12.2011
Lecturer:Doc.Dr. Mehmet TOPALBEKIROGLU
Prepeared by Aybala OZCAN

3. •The air-jet weaving machine on the DORNIER stand
offers highest economic efficiency in fashionable denim
products.
•A fashionable stretch denim fabric will be woven on a a
400 cm wide machine with over 2000 m/min filling
insertion performance.
•The machine already in practical use by important denim
weavers produces quality goods meeting the Levi Strauss
Standard.
•This is achieved using the further developed, absolutely
reliable startmark prevention, ASP.

4. (Further DORNIER weaving machines at the ITM 2006)
A 260 cm wide air-jet terry weaving machine,
type ServoTerry® in Jacquard version
 patented soft reed impact guarantees, at a speed of
700 rpm
fewer ground warp end breaks and ensures exact loop
creation
 terry movement runs directly over a servomotor
 controls different pile weaves and infinitely variable pile
heights during running.

5. With its unsurpassed versatility, the DORNIER air-jet
weaving machine, type AS,
The unique spectrum of application ranges from cam
motions to Jacquard machines with 10,000 hooks
Dobbies with 16 harness frames
 nominal widths of 150 to 540 cm.
 the tried and proven shed geometry from the DORNIER
rapier weaving machine satisfy the highest demands for fabric
quality, appearance and evenness.

6. The reliability of the filling insertion utilizing the patented
PIC®- system with ServoControl®

8.  Permanently controlled process reliability - gentle yarn
processing
•DORNIER’s patented PIC®-system (Permanent Insertion Control)
permanently monitors the most important electrical filling insertion
elements.
• short reaction times and low pressure volumes in the regulation
circuit of DORNIER’s patented ServoControl® provide gentle, low
tension force application
on filling threads.
• The modular, patented Triple Weft Sensor with deflection and
stretching nozzles opens up a new dimension in reliable filling
monitoring.

11. Airjet: Low costs system
Maximum ease of
maintenance, that means low
costs, because there are no
mechanical elements existing that
require accelleration and
deceleration for filling inserction.
A particular gantry, apposite
studied for airjet
configuration, permits to work
without any kind of vibration: it
means an important reduction of
loom's stop for yarn broken (warp or
weft).

12. Robustness and precision –the basis for flexible filling
insertion
 Secure filling insertion for versatility in
application
In addition to electronic monitoring and control, the
unique mechanical concept of the DORNIER air-jet
weaving machine is decisive for the secure processing of
lightweight to heavy fabrics as well as the prevention of
start-marks.
 An optimized movement of the reed and synchronous
movement of the booster nozzle (optional)
 vital in attaining highest speeds and double-width
weaving

16. Main nozzles, relay nozzles and PWC essential for saving energy and higher flexibility
• Air consumption can be reduced by up to 28%
when combined with a newly developed relay nozzle
applicable depending, special stretching nozzles and a
TandemPlus main nozzle applicable depending on the
style program.
• This means the overall energy consumption on a
DORNIER air-jet weaving machine is, relative to the
meters of fabric produced per hour,equal or less than
that of a negative rapier weaving machine.

20. Reliable selvedge formation at very high weaving
speeds –the DORNIER selvedge formation devices
 DORNIER offers revolutionary and patented selvedge
formation devices with decisive advantages which are;
-The 2-end full-turn leno MotoLeno® is freely
programmable
- Warp end breaks in the selvedge area a significantly
reduced.
- While one leno as before forms the fabric selvedge, the
second leno replaces the catch selvedge.
-

21.  The pneumatic tucking
unit, PneumaTucker®,
produces a clean tucked
selvedge without the
use of any mechanical
moving parts and its
functionality is
independent of the
weaving speed to a very
great extent.

24. Intelligent weaving machine electronics –
programmed for the future

25. o DORNIER introduced the AT electronics with
CAN-Bus Controller Area Network in 1989.
o All auxiliary weaving functions have been
incorporated into the monitoring, regulation and
control processes.

27. The technology – engineered for heavy duty

28. Robustly engineered, intelligently designed
The system components related with filling insertion
are;



-bilaterally displaceable,
-facilitating time saving symmetrical and
-asymmetrical changes in width.
These are vital prerequisites for producing start mark free
fabrics by guaranteeing the full dynamics of reed beat-up on
the first pick, thus eliminating start-marks at their source.

30. Let off and Take-up Mechanism of Dornier Air-Jet
Weaving Machines

31.  In the case of the electronic let-off
and take-up motions, DORNIER
utilizes the concept of not only
regulating and reacting, but also
taking forward-thinking action.
• Absolute sensors measure the warp
tension independently of the
position of the whip roll and
movement of mechanical
components, maintaining a constant
tension.

35. End-uses area of Dornier Air-Jet Weaving
Machines

36. Technical Data :
 Filling insertion
System with main and relay nozzles and profiled reed with Permanent Insertion Control
(PIC®) and ServoControl®
 Main nozzle
Standard and mobile tandem booster nozzle (TDM)
Option: TandemPlus and TRIM nozzles
with semi-automatic threading
with Positive Weft Clamp, PWC (option)
 Filling stop motion
Triple Weft Sensor
Filling thread sensor according to the throughlight principle, type STS (option)
 Reed drive
Bilateral with complementary cam assemblies
 Width reduction
Symmetric up to 40 cm, asymmetric up to 90 cm
Larger reductions on request

37.  Filling insertion rate
Over 2,650 m/min, double pick possible up to 5,000 m/min
 Yarn count
See tables on pages 4/5
 Filling colors
1-8 colors, any sequence pick and pick
 Filling accumulators
from various manufacturers, controlled through the DORNIER-Electronic (CAN)
 Controlled filling tension devices
Automatic package monitoring APM
 Temples (trough and cap)
Cylinder temples and by choice full-width temple independent of width, quick
change

38.  Selvedge formation
Two-end disc leno device, MotoLeno®, double disc leno device, MotoEco®,
thermally sealed selvedges, tucked selvedges with PneumaTucker®,
quick change from tucked to leno selvedges and vice versa
 Shed formation
Cam shedding motion, max. 10 harness frames with 12 mm
pitch
Rotary dobby for up to 16 harness frames with 12 mm pitch
Electronically controlled Jacquard machine with up to 10,000
hooks
Leno motion EasyLeno® 2T
Fast Dobby Change, FDC® (option)
Pneumatic Shaft Lock PSL (option)

39.  Electronic Warp Let-off motion EWL
Electronic with absolute sensor and setting accuracy of ± 1 gram,warp beam
support universal or Euro type for beam diameters 800 - 1,250 mm, top beam
stand for up to 1,600 mm beam diameter with Scholze Megatop
 Electronic Cloth Take-up motion ECT
Electronic, synchronized with EWL, setting accuracy 0.01 picks/cm Cloth roll
diameter 540 mm, with off loom wind-up up to 1,800 mm
 Automatic Start-mark Prevention ASP
ASP including harness leveling, high torque start-up of main motor, single pick
insertion mode
 Lubrication
Gearboxes with continuous oil circulation.Automatic central lubrication system
for all lubrication points including universal undermotion AutoLub
 Electronics
Multiprocessor technology with Controller Area Network CAN-Bus,graphical
display, update with new software via diskette or online