Yarn tension and its long-term compensation on constant delivery winding machines by Z. H. Bandukda

Cover of: Yarn tension and its long-term compensation on constant delivery winding machines | Z. H. Bandukda

Published by UMIST in Manchester .

Written in English

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StatementZ.H. Bandukda ; supervised by I. Porat.
ContributionsPorat, I., Textiles.
ID Numbers
Open LibraryOL21238772M

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This paper is devoted to yarn tension control problem in winding machines. The passive take-up unit is replaced by active one with ADRC(Active Disturbance Rejection Control) and it was compared.

NTERNATIONAL SCIENTIFIC BOOK pp. CHAPTER 35 dependant c) and the type of winding (described by a suitable time dependant).In order to perform simulations, we additionally need a relation between the unwinding velocity and the yarn tension. The tension is largest in the eyelet through which the.

yarn tail. The yarn tension in the yarn forming zone has also been measure'-'. In the present work, the yarn tension in winding zone of dref-III machine has been measured by interface the Rothschild tensiometer with computer.

A software has been developed in Qbasic for on-line measurement of yarn by: 4. constant yarn tension achieved from core to the warp beam.

Gandhi () termed Warping as the second stage involved in the production of the goods after winding. The process deals with transferring the amount of single – end packages of cotton yarn from creel to be wound onto the beam in a parallel direction.

Further,File Size: KB. The invention to a yarn tension sensor, in particular for yarns traveling at high speed, to accurately ascertain even short-term yarn tension fluctuations. According to the invention, a yarn guide element is mounted on one head end of a plunger coil disposed in a magnetic field.

A position sensor is disposed in the region of the plunger coil and detects even minimal changes in position of the Cited by: The book discusses various parameters related to build up of winding packages, their influence on package performance and optimisation according to end-user yarn tensioning and clearing devices.

At the weaving preparatory stage, tension of the yarn is necessary for various reasons. In spinning, the yarn spun is wound to form a package of desired shape and size with required compactness.

Such a package can be produced if certain amount of tension is applied on the yarn during the process of winding at spinning stage. The yarn tension-driven bobbin rotates as a result of the force applied by the yarn tension (Fig. As the bobbin becomes smaller, the winding radius decreases, so if friction and inertial forces remain constant, the yarn tension will need to be increased to overcome these forces.

Some common causes of the faulty winding are also discussed. Classification of Winding Machines. Classification of winding machines based on package, winding, drive, and type of yarn used which are listed below: According to package: Flanged bobbin winding m/c. Cone winding m/c. Cheese winding m/c.

Pirn winding m/c. Cop winding m/c. According. 5 Ways to Improve Yarn Tension. 1) Employ Gravity. There’s a reason for years knitters worked with their yarn in a basket at their feet gravity is good.

Gravity does more than keep us on the earth, it adds that little extra drag on our yarn that can sometimes do the trick. 2) Try a Yarn Bowl.

I love my yarn. Implementation of Advanced yarn tension modeling can be applied to new soft winding machines generations and for modifying old machinery. The new advanced yarn tension model is tested on a soft winding machine and good results were reported in addition to recommended tension values for the different cotton yarn counts tested.

Described is a method of winding a yarn (1), fed at constant speed by a feed mechanism, on to a cross-wound bobbin (4). The method calls for the drives (6, 8) for the bobbin spindle (5) and for the cross-winding device (3) to be controlled by frequency converters (30) controlled in turn by a bobbin control unit (14).

In addition, the change in rpm as the bobbin diameter increases is controlled. Winding should be performed according to the yarn count. Tension of yarn during winding process should be maintained strictly because more tension makes the package hard and less tension makes the package softer.

But softness of package should be at an acceptable level for better dyeing of yarn. Winding section floor should keep neat and clean. Basics of Web Tension Control Summary Presenter: Darrell Whiteside, Sales Channel Manager – Tension Control Maxcess International This presentation is intended to take the mystery out of web tension control.

It is intended for operators, designers and engineers who would like a better. There are two types of winding machines: precision winders and drum winders. Precision winders, used primarily for filament yarn, have a traverse driven by a cam that is synchronized with the spindle and produces packages with a diamond-patterned wind.

Drum winders are used principally for spun yarns; the package is driven by frictional contact between the surface of the. During unwinding tests we achieved up to 17% of the breaking tension without affecting the mechanical properties of the yarn: the breaking tension of the yarn after unwinding was not reduced.

We determined the breaking tension to be N = cN, from which follows the estimate of 50 cN for the maximum allowable tension. When cleared mechanically, the yarn is made to pass through a small slit with a definite opening depending on the degree of clearing.

Thick places 4, 5 and slubs larger than the opening of the slit are arrested, cut and replaced by a knot or a splice (Fig. (a),(b)).Thin places are usually removed by applying tension to the yarn during the winding process.

Winding: The formation of big yarn packages which can be smoothly unwound, during next process is known as winding. Winding is the most essential process both of yarn manufacturing and fabric manufacturing. The main purpose of winding is to make a suitable package for both woven and knitted fabric production.

The most common packages are cone. TENSION on mm (mid-gauge bed knitting machines) TENSION on 9mm (bulky bed knitting machines) The most popular gauge being hand knit and machine knit today. Can sometimes be classified as a Light Worsted or Heavy DK. This type of yarn is beautiful in sculptured knits (i.e.

cables, bobbles and textures). Step precision winding produces a yarn package that is free from ribbon formation and marginal variation in coil angle. In open step precision winding, traverse ratios used during package build are such that the resultant package is open suitable for end user applications like warping and dyeing.

It is always a critical task for a manufacturer of step precision yarn winding system to find. Study on Yarn Density and Net Winding Rate Mohammad Mobarak Hossain1, Jahid Khan2, Md.

Fahim Faisal Shishir3, Md Mahbubur Rahman4 1,2,3,4 Department of Textile Engineering, Bangladesh University of Business and Technology (BUBT), Mirpur, Dhaka, Bangladesh.

Email: [email protected] ABSTRACT Winding is the process prior to war preparation during weaving. Constant Rate of Extension (CRE): The machines have a constant rate of elongation of the specimen; as the load increases there is negligible movement of the measuring mechanism.

The working principle of the Tensorapid-4, which is used to evaluate the tensile strength of a single yarn, is a constant. tension scanning systems that perform online tension monitoring in various textile machines. However, these systems cannot be installed on the direct cabling machine due to their size and cost.

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Wool Winder with Yarn Tension & Wax Stand for Knitting Machine Yarn Ball Winding. $ Free shipping. 31 watching. Olikraft Yarn Ball Winder. $ Was: $ Mechatronic Design in Textile Engineering contains a selection of contributions to the NATO ASI which took place in Aprilin Turkey.

In addition to the introductory sections on the mechatronics concept and design methodology and the impact of advance in technology on the mechatronics concept; the importance of the mechatronic design in the textile industries is highlighted, together with. However, ring spinning is slower than other modern spinning systems and requires more processing steps, including off-machine winding of the yarn into large packages.

Rotor Spinning Rotor spinning, also known as open-end spinning, was developed in the s and early s. Winding process can be defined as the transfer of spinning yarn from one package to another large package (cone, spool, pirn etc).

On the other hand it can be defined as the transfer of yarn from ring bobbin, hanks etc into a convenient form of package containing considerable long length of yarn. Yarn Winding length per ring rail traverse: Cop diameter: use of accelerated tests by increasing the yarn tension or reducing its twist during the spinning trails; b) measurement of the “spinning end strength”, which was defined as the maximum stress sustained by the yarn during the end-breakage sequence; and c) using neural network.

1, yarn rewinding machine products are offered for sale by suppliers onof which winding machines accounts for 34%, aluminum foil accounts for 1%, and packaging rope accounts for 1%. A wide variety of yarn rewinding machine options are available to you, There are 1, suppliers who sells yarn rewinding machine on Yarn unwinding from stationary packages has an important role in many textile processes.

In order to achieve high unwinding velocity that can lead to increased production rate, it is necessary to develop packages with a suitable geometry, dimensions, and winding type. The optimal design of the package leads to an optimal form of the balloon and low and uniform tension at high unwinding speed.

Yarn Ball Winder- Iron Winding Machine Winder for Knitting Swift Metal Hand Operated with Thread Cutter Scissors Blue and White Large out of 5 stars 44 $ $ The SHIMA SEIKI Online Services portal site is a one-stop source for accessing various web-based services.

From fashion information and PLM solutions to sample data downloads, FAQs and tutorials, we support our users in all stages of the product supply chain. Yarn winding machine is a manufacturing machine use to combine two or multiple strands of loose yarn with different characteristics via network nozzles and mechanical tension devices.

It offers hassle-free and error-free operations with high automation and ergonomic design durability. In this respect, yarn that is wound under high tension will make a firm package.

High tension winding can result in yarns with little elongation, which may tend to break because of the low elongation. Winding with low tension results in a soft package that can have outer layers that tangle during unwinding or sloughing-off the yarn.

Author: Textiles Committee Created Date: 12/14/ AM. Fundamentals of yarn winding explains principles related to yarn winding relevant even to the latest generation of winding systems. The book discusses various parameters related to build up of winding packages, their influence on package performance and optimisation according to end-user yarn tensioning and clearing devices, yarn splicers and various methods of package driving and yarn Reviews: 1.

while winding the first layer of cotton yarn (CO) are presented in Figures 1 and 2. A comparison of yarn tension simulation courses for all yarns under consideration prepared from different raw materials are shown in Figure 3, whereas the calculated tension values are listed in Table 4.

offers 1, precision yarn winding machine products. About 24% of these are Winding Machines, 0% are Coil Winding Machine, and 0% are Other Machinery & Industry Equipment. A wide variety of precision yarn winding machine options are available to you, such as condition, local service location, and key selling points.

Tend machines with multiple winding units that wind thread onto shuttle bobbins for use on sewing machines or other kinds of bobbins for sole-stitching, knitting, or weaving machinery. Tend spinning frames that draw out and twist roving or sliver into yarn. Thread yarn, thread, or fabric through guides, needles, and rollers of machines.

Thus the constant of becomes very useful for finding out yarn counts by obtaining the lea weights. Note: If two or three leas weight is given,to find count either find out one lea weight and divide by one lea weight; or multiply by the given number of.

A generic term for a continuous strand of textile fibers, filaments, or material in a form suitable for knitting, weaving, or otherwise intertwining to form a textile occurs in the following forms: (1) a number of fibers twisted together (spun yarn); (2) a number of filaments laid together without twist (a zero-twist yarn); (3) a number of filaments laid together with a degree of.The machine spins yarn from 9 small cylinders into a large, standard size cylinder.

The cylinder’s load is located above the motor cup. The company designed its own control board that calculates the profiled application velocity and sends high speed velocity commands to the Elmo driver through a CanOpen communication channel.Fundamentals of yarn winding is written with a broader perspective so as to be a useful reference for a wider segment of textile industry.

The book contains very good self-explanatory illustrations which will facilitate easy understanding of the content.

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