Possibilities, applications and limitations k r salhotra department of textile technology. The title of our project is comparative study on ring, rotor and airjet spun yarn. Download pdf advances in yarn spinning technology free. It is very much important in this time because although ring spinning machine produces best quality yarn but some. Click download or read online button to get mechanics of rotor spinning machines book now. Among the range of openend spinning technologies, rotor spinning is commercially more widely used because a wider range of yarn counts can be spun with appropriate yarn properties. The fully automatic rotor spinning machine r 66 sets the standard for quality and productivity. Process flow chart of rotor yarn manufacturing cotton. Click download or read online button to get advances in yarn spinning technology book now.
A sliver may have more than 20,000 fibers in its crosssection. For the nip roller position on rotor spinning frames saurer offers some special cot qualities in the hardness range of 70 to 83 shore. The new spin box s 66 ensures high spinning stability and yarn strength. Rotor speeds have increased from around 30,000 rpm to over 150,000 rpm. The new s 66 spin box is the heart of the r 66 rotor spinning machine and the core of innovations. Download the rieter manual of spinning volume 5 download the rieter manual of spinning volume 5 download this bookthe rieter manual of spinning volume 6 download this bookthe rieter manual of spinning volume 7last. Comparison between rotor spinning and ring spinning.
Mechanics of rotor spinning machines download ebook pdf. Okuma coronado cdx baitfeeder spinning reels feature onoff auto trip bait feeding system allows anglers to disengage their spinning reel spool and allow their bait to run freely. The newer spinning systems developed since then include rotor spinning, airjet spinning, friction spinning, vortex spinning, electrostatic spinning, core spinning, wrap spinning, twistless spinning and others. It discusses the openend spinning machine rotors vibrations and bearings as well as the kinematics of the rotors drive as individual drive or central drive, both as a. The principle of the apv cavitator the heart of the technology is a rotor spinning in a liquid chamber. Rieter rotor spinning machine r 66 modern rotor spinning technology duration. The basic principle of open end yarn formation a constant stream of separated, individual fibers is allowed to flow to a rotating yarn end. The rotor is a moving component of an electromagnetic system in the electric motor, electric generator, or alternator.
The strength of rieters rotor spinning lies not only in its high productivity, but also in its flexibility in terms of raw material and yarn construction. Razor rotor design a cad designed rotor perfectly balances the rotor components and minimizes weight so there is no wobble or vibration on retrieve. While it offers successful processing of cotton at significantly higher speeds than ring spinning, and it is generally agreed that the yarn processes better. It is a platform to express your knowledge throughout the world. Its rotation is due to the interaction between the windings and magnetic fields which produces a torque around the rotors axis. The system spins yarn directly from slivers, using a spinning rotor and a withdrawal system that imparts false twist to form the fibers into a yarn. After drafting, the sliver is fed into a rotary beater. Among them ring, rotor and airjet spinning are mostly used. Rotor spinning machine is a high speed, efficient self exhausting type open end yarn spinning machine with impurities discharge mechanism.
India received 12 august 1992 the new spinning technologies such as rotor, air jet and friction spinning have tremendous potential for hi gher productivity. The cavitation creates high shear ensuring a very efficient homogenisation effect and friction which generates. Use of taguchi method and grey relational analysis to optimize multiple yarn characteristics in openend rotor spinning. The rieter manual of spinning volume 17 textile study. Use of taguchi method and grey relational analysis to. Control loop of an ac drive using dtc controlling variables with the revolutionary dtc technology developed by abb, field orientation is achieved without feedback using advanced motor theory to calculate the motor torque directly and without using.
The new autobd is an innovatively developed rotorspinning machine that can be fitted with intelligent automation technology, if desired. There are many options out there, and we never take that. Report includes feasibility report, profitability analysis, raw materials, break even points, formulations and formula and much more. For the production of cotton blends, airjet spinning may be used. By using our website, you agree to our use of cookies in accordance with our cookie policy. Advances in yarn spinning technology download ebook pdf. Since its commercial introduction in 1969, rotor spinning has developed continuously. It is conceivable that the better shortterm evenness of rotor spun yarn is an obvious result of the suppression of the drafting wave and the large packages formed in rotor spinning. An overview of developments in yarn spinning technology. Project report on open end spinning unit manufacturing. Unlike other spinning methods in which productivity is limited by the amount of twist in the yarn, air jet yarns, in general, can be produced at the same production rate regardless of yarn counts. Latest rotor spinning technology with the new r 66.
Spinning is the first steps of textile product processing. Pdf download advances in yarn spinning technology free. Airjet spinning of cotton yarns cotton incorporated. Rotor spinning, also known as openend spinning, was developed in the 1970s and early 1980s. We use cookies to give you the best online experience. The precision dual force drag system and carbonite drag washers maximize highend drag pressure, efficiency and overall smoothness. Rotor spinning has established itself as a commercially viable technology with much higher productivity than ring spinning for coarse and medium counts. This means that a yarn of 100 fibers per crosssection will require a total draft. Mechanisms of wrapper fibre formation in rotor spinning. View enhanced pdf access article on wiley online library html view download pdf for offline viewing. Jump to content jump to main navigation jump to main navigation. However to get the optimum benefits from this technology, the machine parts and process parameters have to be properly chosen taking into account the raw material.
Rotor spinning process is fully different from carded or combed spinning. Also, rotor spun yarns are known to be somewhat more extensible, fuller, softer and less hairy. Faster production methods include rotor spinning a type of openend spinning, in which fibres are detached from the card sliver and twisted, within a rotor, as they are joined to the end of the yarn. Students, teachers and professionals can publish your article here. Spinning technology articles and studies resources manmade. This means that a yarn of 100 fibers per crosssection will require a. It is a special type of project work as it is an observing and analytical work. A new gauge has been developed that appears to be the ideal tool for measuring low pressures in both research and industrial vacuum processes where reliability and accuracy of measurement are of importance. Download advances in yarn spinning technology ebook pdf or read online books in pdf, epub, and mobi format. Difference between ring spun yarn and rotor spun yarn. Rotor spinning rotor spinning is the only system to offer a real challenge to ring spinning for coarser yarn counts. Airjet spinning technology produces a distinctive type of yarn called fasciated or wrapped yarn.
The heart of the technology is a rotor spinning in a liquid chamber. If we notice, we will see that the cotton fiber s are converted into carded yarn, combed yarn and rotor yarn. Coronado cdx baitfeeder spinning reel okuma fishing rods. The presence of wrapper fibres on the yarn surface is a characteristic feature of openend rotorspun yarns. The spinning rotor motor reduces the rate of fall by producing lift, resisting the force of gravity. Open end spinning unit project report manufacturing process cost investment required. There are various types of spinning methods for producing various types of yarn. Further developed from the s 60 box, it allows higher yarn tenacity and better yarn evenness.
Rieter rotor spinning machine r 66 modern rotor spinning. Yarn spinning according to the rotor spinning principle predominates for all non conventional spinning methods. Rieter rotor spinning machines are both highly productive and extremely flexible. Openendrotor spinning an overview sciencedirect topics. Merat i, amirkabir university of technology, iran 11. Apv cavitator technology in mayonnaise and salad dressing. In this study, the mechanics of twist insertion and the possible causes and mechanisms of wrapper fibre formation in rotor spinning under different operating conditions have been investigated. These cot qualities provide superior abrasion resistance and at the same time an excellent yarn grip which gives the basis for outstanding running properties and highest product durability over the whole service life. The fully automated rotor spinning machine has stateoftheart spinning technology and produces premium yarns economically and with low energy consumption. The main disadvantage is that rotor spun yarns are not as strong as. It has an excellent quality of rotor yarn, reliability of performance and wide range of rotor yarn counts. Spinning technology reel engine design reel engine technology is based on an aluminum unibody that is precision. The general principle of rotor spinning is shown in figure.
Process flow chart of rotor yarn manufacturing cotton fiber to yarn manufacturing. The fully automated rotor spinning machine offers stateoftheart technology for manufacturing com4 rotor premium yarns with the highest productivity and lowest energy consumption. Please click button to get rotor spinning technology book now. The semiautomated machine has been designed especially for economic yarn production with manual support. The spinning action generates internal liquid frictions. Download advances in yarn spinning technology or read advances in yarn spinning technology online books in pdf, epub and mobi format. Rotor spinning has a better tolerance to some of the fiber defects that cannot be easily tolerated by ring spinning e. The first functioning of rotor spinning,machine was presented at the itma in 1967. The process of making yarns from the textile fiber is called spinning. The yarn is mainly used for weaving gloves, lowgrade denim and towels. All books are in clear copy here, and all files are secure so dont worry about it. Openend spinning is a technology for creating yarn without using a spindle. The spinning action generates internal liquid frictions disk friction and the holes generate hydrodynamic cavitation. Methematical models for a rotor spinning process interim research report for a master of science spinning technology thesis spinning technology about the development of various methematical models spinning technology for rotor spinning technology spinning of paraaramid polymers.
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