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WEAVING MACHINERY AUTUMN TERM PROJECT The DORNIER as AIR-JET WEAVING MACHINES 20.12.2011 Lecturer:Doc.Dr. Mehmet TOPALBEKIROGLU Prepeared by Aybala OZCAN

Dornier as Air Jet Weaving Machines

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Weaving Machinery,Presentation of Dornier Air Jet Weaving Machine System

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

2. The air-jet weaving machine on the DORNIER standoffers highest economic efficiency in fashionable denim products. A fashionable stretch denim fabric will be woven on a a400 cm wide machine with over 2000 m/min filling insertion performance. The machine already in practical use by important denimweavers produces quality goods meeting the Levi Strauss Standard. This is achieved using the further developed, absolutelyreliable startmark prevention, ASP. 3. (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 of700 rpm fewer ground warp end breaks and ensures exact loopcreation terry movement runs directly over a servomotor controls different pile weaves and infinitely variable pileheights during running. 4. With its unsurpassed versatility, the DORNIER air-jet weaving machine, type AS, The unique spectrum of application ranges from cammotions 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 DORNIERrapier weaving machine satisfy the highest demands for fabric quality, appearance and evenness. 5. The reliability of the filling insertion utilizing the patented PIC- system with ServoControl 6. Permanently controlled process reliability - gentle yarnprocessing DORNIERs patented PIC-system (Permanent Insertion Control)permanently monitors the most important electrical filling insertion elements. short reaction times and low pressure volumes in the regulationcircuit of DORNIERs patented ServoControl provide gentle, low tension force application on filling threads. The modular, patented Triple Weft Sensor with deflection andstretching nozzles opens up a new dimension in reliable filling monitoring. 7. 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). 8. Robustness and precision the basis for flexible filling insertion Secure filling insertion for versatility inapplication 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 9. 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. 10. Reliable selvedge formation at very high weaving speeds the DORNIER selvedge formation devices DORNIER offers revolutionary and patented selvedgeformation 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. - 11. The pneumatic tuckingunit, 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. 12. Intelligent weaving machine electronics programmed for the future 13. o DORNIER introduced the AT electronics withCAN-Bus Controller Area Network in 1989.o All auxiliary weaving functions have beenincorporated into the monitoring, regulation and control processes. 14. The technology engineered for heavy duty 15. 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. 16. Let off and Take-up Mechanism of Dornier Air-Jet Weaving Machines 17. In the case of the electronic let-offand take-up motions, DORNIER utilizes the concept of not only regulating and reacting, but also taking forward-thinking action. Absolute sensors measure the warptension independently of the position of the whip roll and movement of mechanical components, maintaining a constant tension. 18. End-uses area of Dornier Air-Jet Weaving Machines 19. 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 20. 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 21. 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) 22. 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