ring spinning process ppt

Lubrication. Ring Spinning Process. The centrifugal force is calculated with the following formula: F C = (m x v 2) / r Ring In a spinning industry, several processes are done to produce yarn. Advantages 5. The tube and ring diam eters m ust have a minimum ratio, between approx. principles of ring spinning before proceeding with a description of open-end spinning. In 1973, the … There is a grid (sieve) at the base which permits only molten liquid to pass through. With the same winding required. Textiles are all around us. Return to Main PowerPoint Models … Spinning process is an initial step to produce textile layout such as garments, fabric, home textile and so on. Rest 95% good cocoons are stifled for reeling purpose. Most of metals that are available in sheets can be spun. Ring spinning is a comparatively expensive process because of its slower production speeds and the additional processes (roving and winding) required for producing ring spun yarns. The ends-down rate in ring spinning has a direct influence on the profitability of the spinning process. TEXTILE SPINNING The process or processes used in the production of single yarns or of fabrics generated directly from polymer. In: Poster presentation, proceedings of the 8th aachen-dresden international textile conference, Dresden, 27–28 November 2014. Applications and Uses 7. In the field of staple fibre spinning, ring spinning system is very popular due to its ability to spin wider range of yarn count. But low productivity is the major drawback inherent with its basic principle. A) Speed Frame • Speed Frame LF4200 Series The technological requirements of Speed Frame are • Attenuation of the sliver • Twisting of the drafted strand • Winding the twisted roving on a bobbin Speed Frame LF4200 series is incorporated with state-of-the-art technology ensuring higher production level. The technology maintains two separate strands during the spinning process, and this allows a number of fibre-binding mechanisms to operate before the strands are twisted about each other. At first, the cotton will go through dryers to reduce moisture content. The ring spinning frame, commonly called the ring, is the conventional spinning system. Normally 1kg of raw silk can be obtained from … The most common measuring method to characterise the dynamic yarn path in the ring spinning process is to measure the yarn tension, where the yarn path is almost straight. 2. The piecing robot ROBOspin … Yarn from Staple Fiber: The formation of a yarn by a combination of drawing or drafting and twisting prepared strands of fibers, such as roving. Ring spinning is a three-step process of drafting, twisting and winding. Rotor Spinning vs Ring spinning system 06 Twisting and winding process work separately in rotor spinning frame. During the spinning process there is always a high load on the ring running track. Ring spinning machine in the textile industry is an industrial machinery used for spinning process to convert the roving into very fine yarn and then wind it onto bobbins for storage. Meaning of Spinning: Spinning is a sheet metal forming process in which a metal blank is pressed over a rotating chuck or form mandrel with the help pressing tool to obtain axisymmetric hollow shell. You can change your ad preferences anytime. If you continue browsing the site, you agree to the use of cookies on this website. In the modern adaptation of this process, polymer… Disadvantages of Ring Spinning. Cotton CG, Trash grade and Spinning Consistency Index, Customer Code: Creating a Company Customers Love, Be A Great Product Leader (Amplify, Oct 2019), Trillion Dollar Coach Book (Bill Campbell), No public clipboards found for this slide, Student at M.L.V Textile & Engineering College,Bhilwara. On this channel you can get education and knowledge for general issues and topics One important step is spinning the yarn. The yarn emerging from the front roller nip is in the shape of a flat ribbon, that is twisted, forms a triangle generally expressed as 'spinning … For the further processes, large package is required for better production rates. The SiroSPUN™ process adapted some of the self-twist discoveries of CSIRO to the ring spinning technology of the worsted system, and combined spinning and doubling in the one operation. An important … BATCH 08 RING SPINNING Ring spun yarns are still regarded by most yarn technologists as having the ideal blend of properties. The drafting arrangements are inclined at an angle of 45 degrees to 60 degrees. Introduction to Ring Spinning Frame; Ring frame machine parts-I; Ring frame machine parts-II; Drive system; Ring and Traveller; Accessories; Automation; Latest … Interruptions, broken ends and piecing up problems exist because of the yarn breakages. People used to convert fibers into yarn i.e. is. Various aspects of ring spinning such as principles of real twisting, roller drafting, inclination of drafting arrangement and offset of top rollers over bottom drafting rollers, spinning … Silk Reeling and Spinning. NPTEL provides E-learning through online Web and Video courses various streams. Spinning process is an initial step to produce textile layout such as garments, fabric, home textile and so on. Simplex machine is used to the carded and combed … 11/8/2010 1Prepared by TANVEER AHMED. Roving stage exists as an extra process compared to the other systems. Cotton which is in the form bales is fed to blow room followed by various operations like carding and combing depends on the requirement. MAZBAH UDDIN Would you like to get the full Thesis from Shodh ganga along with citation details? Slideshare uses cookies to improve functionality and performance, and to provide you with relevant advertising. The ends down rate in spinning Elite yarns is reduced by 30 to 60% which improves spinning efficiency. Related: Creative 3D Circle Tutorial in PowerPoint. Spinning is the process, which is used in the production of yarns or filament from fiber or from the chemical compound. Spinning process: In melt spinning, polymer is heated and it melts to form a liquid spinning solution or dope.. Chips of polymers are fed to a hopper which is heated. The S3 hairiness … per. Cotton Mixing Blow Room Combing Carding Drawing Drawing Open end Ring Frames … For winding to occur, ring rail is moving up and down to wind the yarn. For this purpose, the Auto coner is used to make bigger packages from the … Such sizing is a paraffin emulsion, which will prevent the bonding between the fibers and the matrix, thus reducing the performance of composite materials. Molybdenum, titanium, and magnesium alloys are usually spun by hot spinning process. The melted polymer fibers then passes through a cooling region and the … Other factors are shown in Table 1. Friction spinning is the fastest of all these techniques though the yarn is irregular and bulkier, making it suitable only for some applications. In this process, two rovings are led in parallel through the drafting system, separated by two specially developed condensers, and drafted separately. Process Control in Combing ; Roving. In the … Google Scholar. Ring Curved Process. To make the spinning process easier and effective ; Cotton Ginning Process. material. Ring Spinning The basic requirements and functions of a ring-spinning frame are: a) fiber supply, b) drafting, c) twisting, and d) package winding. Advantages of CompACT3yarn 1) The UT4 hairiness for carded cotton CompACT 3yarn is 20% lower as compared to conventional ring spinning. Process flow chart of carded yarn | Spinning flow chart of carded yarn See our Privacy Policy and User Agreement for details. Among these, the spindle is the major source to cause tension fluctuations, as it is not "To … The final yarn of required specifications are met through these operations and winded. Ring Spinning Ring spinning is the oldest type of fiber spinning still in use. It is clear, however, that automated systems give better, more intimate and controlled blending. The capacity of the … The cotton is then sent to the air conveyed to gin stands where revolving circular saws pull the lint from the saw teeth by air blasts or by rotating brushes. Aluminum alloy up to 6 mm thick, low … We use your LinkedIn profile and activity data to personalize ads and to show you more relevant ads. This slide contains rotor spinning system briefly. A Toyota RX300 ring-spinning frame was utilized to spin 14.6 tex and 9.7 tex ring, compact, Siro, and compact-Siro spun yarn, using the same processing parameters and twist factor (330). The larvae after maturation crawl down the tree at dusk, which are then handpicked and placed in “Jali” (cocoonage) for spinning of cocoons. To fully explain the fundamentals of the ring spinning process, a review of the general principles of yarn formation is described. Interruptions, broken ends and piecing up problems exist because of the yarn breakages. Disadvantages of Ring Spinning. Each hole produces an individual fiber, and the number of holes on a spinneret defines the number of fibers in the yarn. as. The process takes a fiber mass (roving), reduces the mass through fiber drafting, inserts twist for strength, and winds the yarn onto a bobbin. The most common measuring method to characterise the dynamic yarn path in the ring spinning process is to measure the yarn tension, where the yarn path is almost straight. Roving spinning which uses the legacy ring -spinning technology of the twentieth century, Open end, Rotor or Break Spinning used for high quality threads; Dref friction spinning for other yarns. However, it is much more complex to measure the yarn tension at the other positions, for example, between the yarn guide and traveller (balloon zone) and between the traveller and winding point of the cop (winding zone), as the yarn … Then the cotton is to go through cleaning equipment to remove foreign particles or materials. Process Quality Control We wear them, use them when we sleep, and decorate our homes with them. We use your LinkedIn profile and activity data to personalize ads and to show you more relevant ads. 1. The most commonly used are: Aluminum, Copper, brass, stainless steel, carbon steel etc. In ring spinning, the roving is first attenuated by using drawing rollers, then spun and wound around a rotating … This increase yarn production. Blow Room Process ↓ Lap Process ↓ Carding Process ↓ Carded Silver Process ↓ Drawing Process ↓ Drawn Silver Process ↓ Simplex Machine Process ↓ Roving Process ↓ Ring Spinning Process ↓ Spinning Bobbin Yarn Process ↓ Winding Process ↓ Finally Cone Process. For continuation of generations 5% seeds cocoons are selected and kept in grainage hall for emergence of moth and production of eggs. BANGLADESH UNIVERSITY OF TEXTILES In the early 1960s, this was superseded by the ring and traveller, or ring spinning, which, despite other subsequent later inventions, has remained the main commercial method and is now an almost fully automated process of yarn spinning. Other articles where Gel spinning is discussed: man-made fibre: Gel spinning: Gel spinning is an old technique that has come into use commercially only since the 1980s. YARN ENGINEERING DEPARTMET Great as a process diagram or to show non-sequential or grouped information. The twist is introduced as for a normal single yarn by means of ring and traveller. Yarn production process/ Spinning process, Spinning Presentation By Sukhvir Sabharwal, No public clipboards found for this slide. Roving stage exists as an extra process compared to the other systems. If you continue browsing the site, you agree to the use of cookies on this website. Limitations 6. Read article about The Most important criterion for Compact Spinning Mechanisms is to arrange the fibres in a completely parallel and close position. Machines 4. However, in­vestigations into compact spinning have been carried out since 1991, whereas the first spinning frame adapted for compact spinning and dedicated to industrial use were built in 1995. Ans: During the process of spinning, twisted yarn is wound over the spindle cop. View larger version. Ring Spinning The basic requirements and functions of a ring-spinning frame are: a) fiber supply, b) drafting, c) twisting, and d) package winding. Main parameters of the spinning process. Energy-efficient components use minimal energy. Over 330,000 spindles of ring spinning frames with the EliTe compact drawing apparatus from … The ring spinning machine G 37 with the semi-electronic drafting system meets all requirements for an economical yarn production. Drafting arrangements attenuate the roving to the final count. See our User Agreement and Privacy Policy. Free ring curved process for PowerPoint and Google Slides. Editable graphics with icons and text placeholders. Gradually with the development of new technologies rotor spinning, friction spinning, air jet spinning etc were devised to replace the drawback of productivity and improve or retain the yarn quality. Fig 16.40 (a) Schematic illustration of the conventional spinning process (b) Types of parts conventionally spun.All parts are antisymmetric Shear spinning : Known as power spinning, flow turning, hydrospinning, and spin forging Produces axisymmetric conical or curvilinear shape Single rollers and two rollers can be used It has less wastage of material Typical products are rocketmotor casing and … Table 1. During the ring spinning process, the rotation of traveller over the ring and the ring-rail movement cause the spinning tension to fluctuate periodically. Guide rods leave the roving into the drafting arrangements. Yarn breakages are more numerous as a result of ring traveler friction and yarn air friction. what is spinning?Filament yarn spinning process & Staple yarn Spinning processMusic credit: https://www.youtube.com/watch?v=6V1BWVNLCkU The spinning process is not suitable for large-scale production, as it consumes more time. Spinning is the first step to produce a textile product such as fabric, garments, home textile etc. 1:2 and 1:2.2, in order to ensure th at the yarn tension oscillations do not become too great. Process stages are more numerous. The mechanism of yarn … Slideshare uses cookies to improve functionality and performance, and to provide you with relevant advertising. Process stages are more numerous. Now customize the name of a clipboard to store your clips. Ring load. Other factors are shown in Table 1 . If you continue browsing the site, you agree to the use of cookies on this website. ring column data relationship chart ppt element,picture,design,process,analysis,market As originally applied, solutions of very high solid contents (20–80 percent) were used; such solutions were similar to semisolids. 07 Production of rotor spinning frame is more than ring spinning frame. Hossain, M, Abdkader, A, Cherif, C Innovative twisting mechanism based on superconducting technology for higher productivity in ring spinning … The fiber supply, usually in the form of roving and having a hank* range from approximately 0.40 to 5.0, is drawn into the drafting system by the rotation of the back rolls. Sandwich-type blenders can be used for additional The fiber supply, usually in the form of roving and having a hank* range from approximately 0.40 to The operation of ring spinning machine is creeling, drafting, twisting, winding, building and doffing. Denim Wet Process | Bleach Wash | Acid Wash - June 14, 2020; Acid Wash / Random Wash - May 8, 2020; Denim Wet Process | Enzyme Wash - April 15, 2020; The Rieter Manual of Spinning Volume 1 : The Technology of Short-Staple Spinning //By Werner Klein Volume 2 : Blowroom & Carding//By Werner Klein Volume 3 : Spinning Preparation//By Werner Klein Volume 4 : Ring Spinning//By Werner Klein & …

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