2008 December | Knitting Machines

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Brother Knitting Machines Yarn

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Brother Knitting Machines Yarn

Open end spinning

History

The global demand for Fibre is huge. Converting raw fibre to yarn is a complicated process. Many manufacturers compete to provide the spinning machines that are essential to meeting the demand by delivering increases in spinning productivity and additional improvements in yarn quality. Over the past three centuries spinning technology has been continuously improved through thousands of minor innovations, and occasional major advances that have collectively increased the quality and lowered the cost of producing yarn dramatically.

Major technology advances have included:

Hand spinning,

Mule spinning

Ring spinning

Rotor spinning

Friction spinning

Open-End spinning.

Development stages of Open-end Spinning

1937

Berthelsen developed a relatively perfect open end.

1965

Czech KS200 rotor spinning machine was introduced at 30000 rotor rpm.

1967

Improved BD200 with G5/1 Rieter were presented with first mill of OE coming under production

1971-1975

There was a considerable increase in machine manufacturer and newer and improved

version of machines were launched with increased speed at 100000 rpm .

1975

Also witnessed first automated machine from Sussen equipped with Spincat and Cleancat which opened up the industrial rotor spinning breakthrough.

1977

Witnessed Schlafhorst with Autocoro machines which made a mark in open end market.

The number of manufacturers who can successfully compete has been reduced as the technical complexity of the spinning machines has increased. However, there are many competent companies serving the global market for spinning machines who continue to pursue innovative ways to increase spinning productivity and yarn quality.

Characteristics

A good Open-end machine should have,

Higher productivity

Higher Productivity:- This is a major criteria as productivity reduces the cost of manufacturing. The O.E machines which are now in market boasts of many a basic needs like, longer length of machine, higher speeds, able to process coarser hank, fewer changes for Count, easy access to parts (less downtime for cleaning), longer production time between cleaning schedules, computerized controls for less power consumption and lower downtime and complete report generation giving leads to problem area are some points to discuss.

high content sliver cans (up to 18)

Large Sliver Can:- In early days large machines were equipped with less distance between Rotors (Gauge of machine). This led to creeling of very small cans, which required frequent can changes. Each can change requires a break in the yarn. All major manufacturers currently allow cans up to 18 diameter leading to less breakage, less joining of yarn, hence better quality and higher productivity. Originally round cans were used. Rectangular cans are used because they double sliver capacity in the same sliver can footprint.

Larger packages of yarn (4 to 5 kgs)

Large Final Package:- The final package size has continued to increase. The final package size is important because it reduces tube change frequency and thus reduces idle time for creeling. Current yarn packages typically weigh 4 to 5 kgs. The Savio Super Spinner 3000 currently has the largest package size at 6kgs.

Less power consumption

Less Power Consumption:- Using individual motors and electronic controls for each of the various drives of the machine maximize energy efficiency and minimizes downtime.

Automation

Automation:- All spinning machines, whether ring or open end, need yarn joining to repair breaks or start new sliver cans. Joining the yarn has historically been a labor intensive activity and a source of quality defects. Autopiecing units are robots that automate this process. Market leaders like Schlafhorst, Rieter, Savio have machines that incorporate good quality autopiecers and autodoffing. This automation leads to less material handling costs and helps improve quality of the final product.

Flexibility of spinning components

Flexibility of spinning component:- Many vendors are offering machines that can be programmed to produce many different types of yarns. The ability to rapidly change production results in the flexibility to serve multiple markets. A contemporary spinning mill should be able to produce a range of products: denim, knitting, towels, structured fabrics, construction fabrics and various other products like core spun, multi count etc.

Handling count range.

Handling count range:- Machines need to be easily programmed to spin yarns from 4sNe to 60sNe. This ability allows a single machine to produce yarns that cater to many different end user requirements.

References

Bibliography

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Cotton

Architects

Stott Sidney Stott (later Sir Philip) Edward Potts Potts, Pickup & Dixon F.W. Dixon & Son

Engine makers

Daniel Adamson Ashton Frost Ashworth & Parker Boulton & Watt Browett & Lindley Buckley & Taylor Carel Earnshaw & Holt Goodfellow Fairbairn W & J Galloway B Goodfellow Hicks Musgrave J & W McNaught Petrie of Rochdale George Saxon Scott & Hodgson Urmson & Thompson Yates of Blackburn Yates & Thom Whilans J & E Wood Woolstenhulmes & Rye

Machinery makers

Brooks & Doxey Butterworth & Dickinson Dobson & Barlow John Hetherington & Sons Joseph Hibbert Howard & Bullough Geo. Hattersley Asa Lees Mather & Platt Platt Brothers Taylor, Lang & Co Textile Machinery Makers Ltd Tweedales & Smalley

Oldham Limiteds Fine Spinners and Doublers Lancashire Cotton Corporation Courtaulds Bagley & Wright

Industrial processes

Textile manufacturing Cotton-spinning machinery Open end spinning Ring spinning Spinning frame Spinning jenny Spinning mule Water frame Roberts Loom Lancashire Loom

Lists of mills

LCC mills Bolton Bury Cheshire Derbyshire Lancashire Manchester Oldham Rochdale Salford Stockport Tameside Wigan

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Categories: Spinning | Textile stubsHidden categories: Articles needing cleanup from September 2009 | All pages needing cleanup | Articles that need to be wikified from September 2009 | All articles that need to be wikified
About the Author

I am an expert from China Products, usually analyzes all kind of industries situation, such as wood shaper cutters , miter box saws.

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