Ring Spinning Machine (2)

7/24/2019 Ring Spinning Machine (2)

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Ring Spinning

MachinePresented To:

Dr. Hosne Ara Begum

Associate Professor

Bangladesh University of Textiles


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After the Industrial revolution (!"#$!%#&

'ule )inning gained attention throughout the

*orld. +ontinuous e,orts *ere -eing made to

rene this system of s)inning. /ater0 1ing )inning

*as introduced after some modications in 'ule

)inning system. The -asic technology of the 1ing

)inning remained unchanged. 1ing s)inning

system have -een rened during the last 23 years0

the ultimate o-4ectives of s)inning dialectologists

are focused on higher )roduction s)eed0 com-ined

*ith ade5uate 5uality.

Beginning of ring spinningera


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The most *idely used s)inning techni5ue inthe *orld due to its high 5uality. The 6ualityof yarn )roduced -y this techni5ue isconsidered to -e the -est 5uality yarn at ahigh s)eed.

Ring Spinning Frame


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'a4or manufacturer of ring frame

a& /a7shmi 'achinery 8or7s /imited0 India

-& Toyota Textile 'achinery0 9a)an

c& 1ieter 'achine 8or7s /imited0 *iterland

1I;< PI;;I;< =1A'>


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Various components of RingFrame


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Thread guide:

It is a yarn guide made -y -ending a *ire

named snail *ire. nail *ire may -e di,erent in

Ty)es li7e )$sha)ed *ire.

=unctons:

a& its main function to guide the yarn thusmaintain the security of the yarn.

-& It )revents yarn collision *ith ad4acent yarns.

c& Its surface should -e smooth to )revent ru--ingof yarn. 1u--ing creates yarn hairiness.

Various components of RingFrame


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)indle:

The s)indle is the main )art of a ring frame

*hich hel)s in t*isting0 *inding

simultaneously. ometimes0 s)indle referredas

? Heart of )inning@. It holds the -o--in0

some*hat loosely -ut tight enough to

)reventsli))age.

Continued..


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Continued.


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=unctions of s)indle: a&t*isting and *inding is )erformed -y s)indle. -& It holds the -o--in. c&The ca)acity of ring frame is mainly determine -y the num-er of

s)indle.

Di,erent )arts of s)indle:The )arts of s)indle are given -elo*:$ )indle -lade 8harve Bolster /oc7 Bearing Bolster cage

The last three )arts hel) the s)indle to x at the right )lace and *or7)ro)erly.

Continued..


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Continued.Ring Cups


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1ing:The ring are made of lo* car-on steel i.e. soft steel or ceramicin the form of a -ar *hich modeled into ring sha)ed either -y-ending and *elding or -y )ressing -y means of dies and then thestoc7 is given the desired )ro4ection term as ring ange.

=unctions:There are some im)ortant functions of ring. These aregiven -elo*:$

a& 1ing guides the circular run of the traveler.

-& It also hel)s in t*isting -y means of running of the traveler.

c& It also acts as a trac7 of traveler.

+lassication of ring:

A& according to origin or element :$ a& 'etallic ring

-& +eramic ring

B& according to num-er of ange :$ a& single ange ring

-& dou-le ange ring

Continued.


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This *as rst high$)erformancering. +om)ared *ith the)reviously ring sha)e0 it featuresa ange *ith a ared insidesurface and is attened o,considera-ly on to). This changein sha)e ena-led a ring traveller*ith a lo* centre of gravity and)recisely ad4usted arc (elli)ticaltraveller& to -e used and thus also)ermitted o)eration at highers)eeds. Anti$*edge ring andelli)tical traveller -elong together

and should only -e used incom-ination. ince the )assage islimited0 this com-ination can only-e used for ne and mediumcount yarns.

Anti wedge ring and Ellipticaltraveller


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Traveller is themost tiny andsim)le mechanical

element in ringframe *hichcarries the mostim)ortant function

li7e simultaneoust*isting0 *inding0thread guide etc.

raveller


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T*isting on the draftedstrand of -re.

8inding of the yarn onthe -o--in.

'aintain *indingtension of the yarn -ythe frictional resistance-et*een the ring andtraveller.

It acts as a guide foryarn on the *ay to -e*ound on the -o--in.

Functions of traveller


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2 roller0 dou-le a)ron draftingsystems are exclusively onmodern ring s)inning machinesused for short sta)le s)inning.They consist of three uted0driven0 -ottom steel rollers (a&

*ith to) rollers (-& )ositioneda-ove them0 su))orted and)ressed against -ottom rollers (a&-y a roc7ing su))ort ()ressurearm&. ince a -re -undle *ithonly fe* -res has to -e

trans)orted in the main draftingone0 the main drafting one is)rovided *ith a guide unitconsisting of rotating -ottom andto) a)rons (e&.

Conceptual structure of thedrafting s!stem


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1egular drafting system (*ithout a)ron& ingle a)ron drafting system Dou-le a)ron drafting system

a& +asa-lancaCs drafting system

-& = drafting system

ome im)ortant models of = drafting system

= P$E

= P$EE3

= P$EEF

= P$E2F= P$EFF

= P$E"F

= P$E3EF

Chronological histor! of draftings!stem of Ring Frame


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There are commonly t*oty)es of drafting systemare used in ring frame:

A& )ring loaded draftingsystem or )endulum arm(exam)le: = P$E3EFG1 T>PA1T E32F&

B& Pneumatic draftingsystem (ex: = P$232F&

Another drafting systemis )endulum arm)ressure *hich is no*-ecome conventional.

"#ES $F %RAF&'(S"SEM

#neumaticdraftings!stem

#endulumarm

. /oaded -y)neumatic)ressure i.ecom)ressed air.

./oaded -ys)ring.

E. Uniform)ressure isa))lied to alldrafting rollers.

E. A))lied)ressure in alldrafting one isnot uniform.

2. +onsistentyarn 5uality isachieved.

2. +onsistentyarn 5uality isnot achieved.

#. 'oderndraftingsystem.

#. +onventionaldraftingsystem.


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!pes of drafting s!stem)cont..*


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The ne* +P (+otProtecting ystem& reducesthe maintenance in thedrafting unit -y extendingthe to) roller life time in

man$made -er rings)inning$ an a)ron )rotectsthe delivery roller cot from*ear.

;o grinding of delivery cots.

+onstant and e5ual 5ualityover a long time. it can -e used for %

months *ithout grinding.

%evelopment in drafting s!stemA* C#S echnolog!


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+om)ared to conventionalring s)inning technology thestructure of -ottom draftedrollers are advantageous. It iso-served that the slot angleshave a great e,ect on yarnhairiness. The -er ends ont*o sides of the s)inningtriangle create most of thehairs on the yarn0 their )athcontrol is im)ortant to

reduce the hairiness of theyarn. The diagonal sha)e of-ottom rollers )rovide a)ro)er )ath for these -ers.

%iagonall! slotted +ottomdrafted roller


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The Active +radle *ith thePI; )acer im)roves thedrafting )rocess -y anenhanced inter$-erfriction in the main draft

one. The Active +radle*ith exi-le leading edgeand o)timied )in )osition

Im)roves the values ofthe most im)ortant yarn

)arameters and Is suita-le for all )o)ular

to) *eighting arms.

B* AC# )Active Cradle with the#&'Spacer*


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,aste $pener Machine


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1ecycled or regenerated0 cotton is ndingits *ay into ne* yarns and non$*oven)roducts. =or cotton0 must )rotect thesta)le length *hen recycling. Traditionalrecycling cho))ing u) *hich reduces sta)lelength and deteriorates 5uality of yarn.

Rec!cling


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Thank you

Documents

Ring Spinning Machine (2)