Yaa Dissimilar Parts Too Features Of Telephone Traveller

Different Parts together with Features of Ring Traveller
Dipak Baraiya
Dept.of Textile Technology
Maharaja Saiyajirao University, Baroda, India
Cell: +91 9687780158
Email: dipakbaraiya9013@gmail.com

Ring traveler:
Ring traveler is the close tinny together with elementary mechanical chemical factor inward band frame. It has a straight upshot on the lineament of yarn produced every bit their activity physically turns the raw stuff into finished product. So, band traveller plays really of import purpose inward ring spinning system.

Fig: Ring traveler

Functions of Ring traveler:

1. Imparts twist to the yarn together with
2. It is responsible for winding the yarn onto the cop.
3. It defines Spinning tension.
4. It defines Winding Tension.
5. Traveller imparts twist to the yarn.
6. Traveller together with spindle together assist to air current the yarn on the bobbin. Length injure upwardly on the bobbin corresponds to the divergence inward peripheral speeds of the spindle together with traveller. The divergence inward speed should check to length delivered at the front end rollers. Since traveller does non induce got a crusade on its ain but is dragged along behind past times the spindle.

Various Parts of Ring Traveller:

Toe gap: This volition vary according to traveller lay out together with flange width of the ring.

Toe gap

Height of bow: It should live every bit depression every bit possible for stable running of traveller. It should also induce got sufficient yarn passage.

Height of bow

Ring contact area: This expanse should live more, uniform, smoothen together with continuous for best performance.

Ring contact area

Inner width: This varies according to traveller profile together with band flange.

Inner width

Wire section: It plays an of import purpose for yarn quality, life of traveller.

Wire section

Yarn passage: According to count spun the traveler profile to live selected amongst required yarn passage.

Yarn passage

Salient Features of a Ring Traveller:

1. Generate Less Heat .
2. Dissipate Heat Fast.
3. Have Sufficient Elasticity For Easy Insertion And To Retain Its Original Shape After Insertion.
4. Friction Between Ring And Traveller Should Be Minimal.
5. It Should Have Excellent Wear Resistance For Longer Life.
6. Hardness Of The Traveller Should Be Less Than The Ring .

Traveller Speed: 

The speed past times which the traveller moves around the band = Π D_R N_T m/min

• Since traveller does non induce got a crusade on its ain but is dragged along behind by the spindle. High contact pull per unit of measurement area (up to 35 N/ mm2)is generated between the band together with the traveller during winding, mainly due to centrifugal force. 

• This pull per unit of measurement area leads to generation of heat. Heat produced when past times the band traveller is around 300 aeroplane celcius. This has to live dissipated inward milliseconds past times traveller into the air. 

• Low majority of the traveller does non allow dissipation of the generated heat inward the brusk fourth dimension available. As a resultant the operating speed of the traveller is limited. 

• The maximum attainable speed of traveller without getting damaged is known every bit “Limiting Speed of Traveller”. 

• 70 ft/sec. (22 m/sec) – Conventional Ring- traveller. 

• 120 ft/sec. (35 m/sec) – H.S. Ring- traveller.

Limitations of Ring –Traveller Spinning System

• When the spindle speed is increased, the friction operate betwixt band together with traveller increases every bit the third ability of the spindle rpm. Consequently if the spindle speed is every bit good high, the traveller sustains thermal harm together with fails. This speed restriction is felt especially when spinning cotton wool yarns of relatively high strength. 

• If the traveller speed is raised beyond normal levels , the thermal stress limit of the traveller is exceeded, a drastic alter inward the apparel conduct of the band together with traveller ensues. Owing to the strongly increased adhesion forces betwixt band together with traveller, welding takes house betwixt the two. These seizures inflict massive harm not alone to the traveller but to the band every bit well. The traveller temperature reaches 400^oC to 500^oC together with the danger of the traveller annealing together with failing is very great.

All together restricts spindle speed, thereby production of band frame.

Traveller Count:

• It represents weight of 10 equal type of travellers inward grains.
• OLD System: 10 travellers weigh 10 grains together with then traveller count = 1
• ISO System: Weight of traveller inward mgm OR Weight of like K travellers inward gm.
• 10 travellers weigh <10 grains together with then traveller is said to live the “Ought traveller” or ”Nought traveller”. Denoted past times N/0; where northward represents traveller count.
• Higher the count heavier the traveller 

 

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