vxl ring travellers (p) limited : [email protected], [email protected], [email protected] website :...
TRANSCRIPT
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VXL RING TRAVELLERS (P) LIMITEDRegd. Office
22, Sidco Industrial Estate, Coimbatore - 641 021, Tamilnadu, IndiaPh : 91-422 - 2670676, 2677021 Fax : 91-422 - 2670676
Mobile : +91-99439 31804E-mail : [email protected], [email protected], [email protected]
Website : www.vxlrt.com
Certificate 12 100 19029 TMS
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INTRODUCTION
We are very much pleased to present this technical hand book.
The ring travellers are very vital components in the spinning process.
This hand book has been prepared with all the technical details in
a simple way for day to day operation of the technicians. This book
has been prepared by our technical team with continuous interaction
with our valued customers.
VXL Ring Travellers is a group concern of VXL Systems which
is a market leader in the field of waste and dust handling systems.
VXL Ring Travellers has been started with the sole intention of
introducing travellers for high speeds in modern day spinning and
fulfill the aim of spinners to spin superior quality yarn. This has been
achieved with our strong R & D base and the trust you have placed
in us.
Now we are also offering spinning & doubling rings after
conducting exhaustive trials in leading textile mills.
If you require any specific technical advise, we will be pleased
to depute our experienced application technicians to assist you. The
details furnished in this booklet are only guide lines based on our
experience and the experience shared with the spinning technicians.
The exact selection should be decided at the mills depending on the
prevailing conditions.
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CONTENTS
1. Types of Ring Travellers ... 4
2. Function of a Traveller ... 5
3. Tips for Smooth Running of Travellers ... 6
4. Wire Sections ... 7
5. Ring / Travellers Combinations - Flange- 1 & 2 ... 8
6. UDR Cross Section Travellers ... 10
7. Yarn Clearance ... 11
8. Spinning Geometry with respect toring and traveller ... 12
9. Finishing Treatments ... 13
10. Trouble Shooting ... 14
11. Tips for achieving higher traveller speed ... 15
12. Hairiness ... 16
13. Wear & Life of the Travellers ... 17
14. Traveller Forms ... 18
15. Traveller Weight Comparison Table ... 20
16. Numbering Systems for yarn and Twists ... 21
17. Spinning with Flange Travellers ... 22
18. Twisting / Doubling with Flange Travellers ... 23
19. Selection of Ring Travellers ... 24
20. Ring and Ring Traveller System ... 25
21. Traveller Speeds / Performance Calculations ... 26
22. Setting of the Traveller Clearer ... 27
20. Designation of Ring Parts ... 28
21. Ring Profiles ... 28
22. Ring Shapes ... 29
23. Fixing Methods ... 29
24. Wear & Life of the Rings ... 30
25. Running in of Rings ... 31
26. Ring Traveller Recommendations ... 32
27. Packing Details ... 33
29. VXLRT Sales and Service Centres ... 34
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TYPES OF RING TRAVELLERS
C-Shaped Travellers
Used in T-Flange Horizontal Rings
For Cotton and Synthetics & Blends
1. Inner width
2. Height of Bow
3. Positions of yarn path
4. Wire section
5. Ring contact surface
6. Angle of toe
7. Toe
8. Gap
9. Upper part of bow
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FUNCTION OF A TRAVELLER
j To provide Twist to the yarn
j To provide yarn Tension (Spinning Tension)
j To wind the yarn on the Bobbin.
Traveller weight influences the yarn tension. It is determined by
j The yarn number
j Material processed
j Spinning Geometry
j Speed and Traveller form.
The choice of correct Traveller
It is determined by the type of
j Ring Frame
j Ring & Ring Flange
j Material
j Yarn number and spindle speed.
The basic functions of the ring travellers are to lay yarn on the bobbinunder proper tension, control the balloon of the yarn, work togetherwith their rotating bobbins and front roller delivery to insert twist intothe yarn, and to act as a differential for the surface speed of the yarnas it varies during formation of the package.
Many variations influence proper traveller selection - the spinning andtwisting equipment used, different rings, different yarns and fibres,count, twist, yarn appearance required and production speeds. Onlyexperience and experimentation - aided by a stroboscope with a goodbright light to observe some of the points to be considered - will leadto the most suitable traveller.
The following pages present an organized approach to understandingand selecting travellers.
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TIPS FOR SMOOTH RUNNING OF TRAVELLERS
The ability of the Traveller to withhold strain is influenced by quite anumber of factors. Therefore make sure that
j The rings are correctly centered with regard to the spindles.
j The yarn guide eyelet is well centered with regard to the spindle
j The balloon control rings are correctly centered with regard to thespindles.
j The spindle bearing is in good condition excluding spindlevibrations.
j The ratio between bobbin Ø, bobbin length and spindle gaugewith regard to the Ring Ø is correct.
j Balloon control rings exist, their diameter matching the ring.
j Appropriate, correctly adjusted traveller cleaners keep the Flangetraveller free from Fibre Fly.
j The room climate is favourable for the yarn processed.
j The air in the Mill is free from dust and Fibre Fly that influencethe efficient performance of the traveller.
j The ring profile and traveller shape match well.
j The traveller contact surface is smooth and even.
ULTIMATE TRAVELLERS
Ultimate travellers are specially surface treated by diffusion techniqueto impart deepened effect for
j Very Smooth running
j Excellent Heat Dissipation
j Extreme Wear - Resistance
j Low Thread Breakage
j Reduced Hairiness
j Better elongation for easy insertion
j Running in of rings
j Increasing the Ring’s Life
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Good results regardinghairiness. Suitable forfine cotton yarn andviscose.
For blends, cotton andsynthetics. Good resultsfor low twisted yarn.
For cotton, blends andsynthetics. Extremelywide half-round profileoffers a large contactsurface, for high speeds.
For acrylics, specialsynthetics and core yarn.Flat toe, round travellerbow (yarn passage), forhigh speeds.
For Synthetic and coreyarn, for lower speeds
WIRE SECTIONS
f
udr
dr
fr
r
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VXL RINGS / VXL TRAVELLERS COMBINATIONS
VXL C1HW DR
VXL C1MTW
VXL C1LM UDR
VXL C1UDREMT
VXL C1SEL UDR
VXL U1UM UDR
VXL U1UL UDR
HO (DR) Forsynthetics andBlends
HWO (UDR)For Cotton,synthetics andBlends
VXL U1US UDR
VXL U1CL UDR
VXL C1MM UDR
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VXL RINGS / VXL TRAVELLERS COMBINATIONS
VXL C1SKL UDR
VXL C1UM UDR
VXL C1/2EL UDR
HO (DR) Forsynthetics andBlends
HWO (UDR)For Cotton,synthetics andBlends
VXL EL1UDR
VXL U1/2UL UDR
VXL EP2HWO
VXL C2FLAT
VXL EP1HWO
VXL C1/2UM UDR
VXL EM2UDR
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UDR CROSS SECTION TRAVELLERS
VXLRT also produces travellers in UDR wire section for all range inaddition to U1 UL UDR, P1 HWO, EP1 HWO, P2 HWO & EP2 HWOtravellers.
UDR = HWO(Ultra Demi Round) (Half Wide Oval)
Cross Section
Advantages
j This wire section gives the advantages of flat wire section and HOwire section. Hence, it can be used for all range of Cotton, syntheticand synthetic blended yarns.
j More width of traveller for better heat dissipation.
j Smooth yarn passage by specially designed cross section oftraveller.
j Reduce the Inventory level.
Recommendation
UDR wire section travellers are available in the following range oftravellers.
EL1 UDR EM2 UDR EP1 HWO C1MM UDR
H2 UDR EH2 UDR C1 HWDR C1MTW UDR
EM1 UDR U1UL UDR EP2 HWO C1LM UDR
EL2 UDR C1SEL UDR U1UM UDR C1VHD
U1CL UDR C2HW DR C1VEL UDR U1US UDR
U1/2UL UDR C1UM UDR C2 HRT C1/2EL UDR
HWO (UDR)
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YARN CLEARANCE
The yarn clearance must be adopted to the yarn count, yarn twist aswell as to the Fibre processed.
Examples
– Low bowed traveller
– Small yarn clearance
– Low bowed travellerFor fine cotton yarns.
– Low to medium bowedtravellers
– Small to medium yarnclearance
For fine to medium-fine cottonyarns
– High-bowed traveller
– Large yarn clearanceFor medium to coarser cottonyarns, also suitable for blendsand synthetics.
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Thread guide
j Distance top of tube / thread guide =1.5 to 2 x tube Ø (ring rail position atstarting position)
Anti-ballooning ring
j Anti-ballooning ring Ø = ring Ø + 2mm
j Distance ring rail/Anti-ballooning ring (ring)rail position in starting position) = 2/3 ofthe distance ring rail/thread guide.
Spinning ring
j Spinning ring Ø : max 1/5 of the tube length(exception Core Yarns) see chart below
j Horizontal, firm fixation of the rings in thering rail.
Medium tube ø (mm) d Ring ø(mm) D
Tube length ø (mm) L
16 17 18 19 20 36 170 180 190 195
17 18 19 20 21 38 180 190 200 205
18 19 20 21 22 40 190 200 210 215
19 20 21 22 23 42 200 210 220 225
20 21 22 23 24 45 210 220 230 235
22 23 24 25 26 48 230 240 250 255
23 24 25 26 27 51 240 250 260 265
Recommended tube measurements
Ideal Range Unfavourable Range
SPINNING GEOMETRY WITH RESPECT TO
RING AND TRAVELLER
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FINISHING TREATMENTS
Travellers with an additional finish show the following advantages :
j Higher traveller speeds
j Longer traveller life
j Improved running behaviour and as a result a more consistentyarn quality
j Rust / oxidation protection (especially for Star Tech)
ULTIMATE
Diffusion treatment
VXL ultimate has been speciallydeveloped for high performances. Theenrichment components are presentthoughout the traveller section and togenerate their effect even when thesurface is affected.
Ultimate can be used for the ringrunning-in, normal operation and coversthe entire fibre and yarn count range.
STAR TECH
(special nickel plating)
A nickel coating is applied with aspecial process.
Low friction values in the yarnpassage prevent fibre damages.
NANOTECH
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TROUBLE SHOOTING
PROBLEMS CAUSES REMEDIES
Poor yarn quality j Improper matching j Correct trav.number & type
j Wornout rings j Good ring condition
j Improper position j 2d+5 of tube dia for
of Lappet lappet setting
j Inconsistent R.H.% j Correct R.H. %
More hairiness j Less clearance j High bow height traveller
traveller
j Lighter traveller j Heavier traveller
Less yarn elongation j Heavier traveller j Lighter traveller
Pushed up neps j Less yarn clearance j Use high clearance
traveller
Unable to increase j Improper life j Proper lift w.r.t. count
the spindle speed j Improper ring & j 2:1 ring & tube dia
tube dia j 1:5 ring dia to tube length
j Improper lappet j 2d+5 of tube dia for
height lappet setting
j Poor ring / lappet j Correct centering of
centering Ring / lappet
j Spindle/tube vibration j Vibration free spindle/tube
More end breaks j Wrong selection of j Select correct type &
traveller profile and number w.r.t. count,
traveller number material, ring dia, spindle
speed, yarn strength &
life of the ring
Poor traveller life j Improper matching j Correct selection of traveller
j Poor ring condition j Good Ring condition
Fluff accumulation j Improper traveller j Setting should be 0.2 to
Clearer setting 0.3mm (clearer to Traveller)
j Poor house Keeping at operating condition)
j Higher room j Optimum Room
temperature temperature
j Poor R.H. % j Better R.H.% (50 to 55)
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TIPS FOR ACHIEVING HIGHER TRAVELLER SPEED
The maximum traveller speeds can only be achieved, if
(a) The rings are in good condition (Full flange width, good run in- running track).
(b) The rings, balloon control rings, yarn-guide eyelets are inconcentric position.
(c) If traveller cleaners are mounted with the recommended settinggauge.
(d) A constant room climate is given (Temperature, Air humidity)
(e) The drafting assembly is in good condition (Pressure roller,aprons without damage).
(f) The machine is kept free from disturbing fibre accumulations.
v The recommended limits of the traveller speed are supposed toprevent thermal yarn damage, avoid extreme imperfection (thin(or) thick places, neps).
Increase in performance is possible under specially favourableconditions.
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HAIRINESS
Problems
l More end breaks in windingUneven fabric surface
l Beads formation in thefabric in the case ofPolyester/cotton blends
Causes
l Use of cottons differingwidely in the properties inthe same mixing
l Use of worn rings andlighter travellers
l Maintaining low relativehumidity, close rollersettings and very highspindle speeds
Remedy
l Use of travellers of correctsize and shape and ringsin good condition to beensured
l Periodic replacement oftravellers and suitable rollersettings to be maintained.
l Optimum relative humidityto be maintained in thespinning room
l Wide variation in theproperties of cottons usedin the mixing to be avoided
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WEAR & LIFE OF THE TRAVELLERS
To maximize the operative time of travellers is the common goal of allspinning managers. By prolonging the change cycles of travellers, itreduced cost and most importantly, increased production efficiency.Care should be taken that the change cycle is not extended to thepoint that worn or damaged travellers are used as the resultingdeterioration of yarn quality and possible damage to rings will morethan offset the savings of extending the traveller life.
There are four primary factors for selection of proper traveller including :
Profile
Count
Finish
Traveller Number
But there are also other factors that determine the life span of travellers:
A) Condition of rings - Finish of rings- Procedure of breaking-in- History of yarn changes
B) Property of yarn - Material processed- Twist factor- Evenness
C) Mechanism of machine - Centering of spindle- Levelling of ring rail- Setting of traveller clearer- Size of package- Traverse distance of ring rail in
relation to inner diameter of rings- Balloon controlling ring
D) Operation condition - Traveller Speed- Temperature
All of the above mentioned factors can vary from mill to mill. Thusmaking a direct comparison from mill to mill is virtually impossible.Therefore, it is recommended that the proper change cycle of travellersshould be based on the following criteria :
*Change of yarn quality, example Count 40’s-CV% of evenness = Goes up by 2% or more-Neps = Increased by 30% or more-Hairiness = Goes up by 1/2 rating or more-Yarn strength = Decreased by 20% or more*Number of yarn breaks - increased by over 30%*Percentage of burnt travellers - 5% or more.
Flange 13.2mm
Spindle (RPM)
Speed 13000
13000 – 16000
16000 – 18000
18000 – 20000
20000 – 23000
TRAVELLER FORMS
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Count Traveller No.
TYPE
WireSection
C1
M
M
UD
R
C1
U
M
UD
R
C1
H
W
DR
U1
U
L
UD
R
C1
M
TW
U1
M
L
UD
R
U1
U
M
UD
R
C1
/2
EL
, U
DR
C1
S
EL
, U
DR
U1
/2
UL
U
DR
8 14 - 12 12 - 16
12 9 - 8 8 - 11
20 1 - 3 4 - 7
30 1/0 - 3/0 2/0 - 2
40 5/0 - 7/0 7/0 - 3/0
45 8/0 - 10/0 9/0 - 6/0
55 9/0 - 12/0 11/0 - 7/0
60 10/0 - 13/0 12/0 - 8/0
70 12/0 - 15/0 14/0 - 10/0
80 14/0 - 18/0 16/0 - 12/0
90 15/0 - 20/0
100 18/0 - 22/0
120 22/0 - 24/0
19
COTTON SYNTHETIC BLENDS COMPACT
Form
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TRAVELLER WEIGHT COMPARISON TABLE
Traveller weight per 1000 travellers in gram
TRAVEL-LER NO.
VXLRTLAKSHMI/BRACKER KANAI
OTRA /R&F
CART-ER
TRAVEL-LER NO.
VXLRT KANAIOTRA /
R&FCART-
ERLAKSHMI/BRACKER
28/0 6.3 6.3 6.7 5 1.6 4 90 90 89 85 84.2
26/0 7.1 7.1 8.1 6 4.8 5 95 95 95 95 90.7
24/0 8 8 9.5 7.1 8.1 6 100 100 109 106 103.7
22/0 9 9 10.9 8 11.3 7 112 112 122 112 116.6
20/0 10 10 12.3 9 14.6 8 125 125 136 125 129.6
19/0 11.2 11.2 13 10 16.2 9 140 140 154 140 149
18/0 12.5 12.5 13.7 11.2 17.8 10 160 160 175 160 168.5
17/0 13.2 13.2 14.5 12.8 19.4 11 180 180 204 180 194.4
16/0 14 14 15.4 13.2 21.1 12 200 200 224 200 213.8
15/0 15 15 16.6 14.5 22.7 13 224 224 244 224 233.3
14/0 16 16 18.3 16 24.3 14 250 250 264 236 252.7
13/0 17 17 20 17 25.9 15 265 265 283 250 272
12/0 18 18 21.6 18 27.5 16 280 280 299 265 285.1
11/0 20 20 23.4 19 29.2 17 300 300 311 280 298.1
10/0 22.4 22.4 24.8 20 30.8 18 315 315 324 300 311
9/0 23.6 23.6 26.8 22.4 32.8 19 335 335 335 315 324
8/0 25 25 28.5 23.6 34 20 355 355 355 325 337
7/0 28 28 30.2 26.5 35.6 21 364 335 350
6/0 31.5 31.5 32.2 30 38.9 22 375 375 378 355 362.9
5/0 35.5 35.5 35.1 35.5 42.1 23 391 375 375.8
4/0 40 40 39.3 35.5 45.4 24 400 400 404 385 388.8
3/0 45 45 42.2 40 48.6 25 417 401.8
2/0 50 50 48.3 45 51.8 26 425 425 431 415 414.7
1/0 56 56 54.6 50 58.3 27 444 425 427.7
1 63 63 62.2 60 64.8 28 450 450 457 450 440.6
2 71 71 74 71 71.3 29 472 460 453.6
3 80 80 81 80 77.8 30 475 475 485 475 466.6
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NUMBERING SYSTEMS FOR YARN AND TWISTS
Yarn count comparison chart (rounded figures)
ENGLISHCOUNT (Ne)
WOOLEN(Ne)
METRIC COUNT
(Nm)TEX DENIER
6 20 10 98 885
7 23 12 84 759
8 26 14 74 664
9 30 15 66 590
10 33 17 59 531
11 36 19 54 483
12 39 20 49 443
13 43 22 45 408
14 46 24 42 379
17 56 29 35 312
18 59 30 33 295
19 62 32 31 279
20 66 34 30 266
24 79 41 25 221
26 85 44 23 204
28 92 47 21 190
30 98 51 20 177
36 118 61 16 148
40 131 68 15 133
48 157 81 12 111
50 164 85 12 106
55 180 93 11 97
60 197 102 10 89
65 213 110 9 82
70 230 119 8 76
80 262 135 7 66
90 152 7 59
100 169 6 53
110 186 5 48
120 203 5 44
150 254 4 35
180 305 3 30
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SPINNING WITH FLANGE TRAVELLERS
Relationship of yarn count to traveller number
High speeds –> lighter TravellersLower speeds –> Heavier Travellers
Yarn Count
8 73.8 14 10-14 160-250 12-16 200-280
12 49.2 20 6-9 100-140 8-11 125-180
18 32.8 30 2-6 71-100 5-8 95-125
20 29.5 34 2/0-3 50-80 4-7 90-112
24 24.6 41 3/0-2 45-71 1-4 63-90
30 19.7 51 5/0-1/0 35.5-56 2/0-2 50-71
34 17.4 58 6/0-2/0 31.5-50 3/0-1 45-63
40 14.8 68 9/0-5/0 23.6-35.5 7/0-3/0 28-45
45 13.1 76 11/0-8/0 20-25 9/0-6/0 23.6-31.5
55 10.7 93 13/0-9/0 17-23.6 11/0-7/0 20-28
60 9.8 102 14/0-10/0 16-22.4 12/0-8/0 18-25
70 8.4 119 16/0-12/0 14-18 14/0-10/0 16-22.4
80 7.4 135 18/0-14/0 12.5-16 16/0-12/0 14-18
90 6.6 152 20/0-16/0 10-14
100 5.9 169 22/0-18/0 9-12.5
120 4.9 203 26/0-22/0 7.1-9
Traveller Number
Cotton Synthetics & Blends
Ne Tex Nm Traveller No. Traveller Wt. Traveller Wt.Traveller No.
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TWISTING / DOUBLING WITH FLANGE TRAVELLERS
Relationship of ply yarn count to traveller number
Single Yarn Count
Ne Tex Nm
2 - ply 3 - ply 4 - ply
Traveller
No.
Traveller
Wt.Traveller
No.
Traveller
Wt.Traveller
No.Traveller
Wt.
5 118.0 8.5 26-30 425-475
7 84.3 11.9 22-26 375-400 28-30 450-475
10 59.0 16.9 18-22 315-355 24-28 400-450 28-30 450-475
12 49.2 20.3 16-18 280-315 22-24 375-400 26-28 425-450
16 36.9 27.1 15-17 265-300 18-20 315-355 20-22 355-375
18 32.8 30.5 14-16 250-280 17-19 300-335 19-22 335-375
20 29.5 33.9 12-14 200-250 15-16 265-280 18-20 315-355
24 24.6 40.6 10-12 160-200 13-14 224-250 16-18 280-315
30 19.7 50.8 8-10 125-160 10-12 160-200 13-15 224-265
36 16.4 60.9 6-8 100-125 8-9 125-140 11-12 180-200
40 14.8 67.7 4-6 90-100 7-8 112-125 10-11 160-180
50 11.8 84.7 1-3 63-71 5-6 95-100 9-10 140-160
60 9.8 101.6 1/0-1 56-63 3-5 80-95 8-9 125-140
70 8.4 118.5 2/0-1/0 50-56 1-3 63-80 7-8 112-125
80 7.4 135.4 3/0-2/0 45-50 1/0-2 56-71 4-6 90-100
90 6.6 152.4 6/0-4/0 31.5-40 2/0-1/0 50-56 2-4 71-90
105 5.6 117.8 7/0-5/0 28-38.5 4/0-3/0 40-45 1-3 63-80
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SELECTION OF RING TRAVELLERS
i) When the ring diameter is less, Balloon Diameter will be small.This leads to more yarn tension, hence use lighter Travellers
ii) When the ring Diameter is high, Balloon Diameter will be more.This leads to less yarn tension and balloon touches the separator,hence use heavier travellers.
iii) When the tube length is short, the yarn tension will be more,hence use lighter Travellers.
iv) When the tube is long, the yarn tension will be less, hence useheavier Travellers.
v) When the yarn contact area and ring contact area in travellers iscloser, Fibre Lubrication is better especially in cotton, for this useHeavier Travellers.
vi) For Higher speeds, lighter Travellers give lesser yarn tension.
vii) The center of gravity should be as low as possible for stablerunning of Traveller, For this, use low bow height Travellers.
viii) To avoid end breakages by reducing the yarn tension, use lighterTravellers.
ix) To avoid Bigger Balloon, use Heavier Travellers.
x) Heavier Travellers will help to avoid fibres coming out to the yarnsurface.
xi) When using Lighter Travellers, Yarn stretch will be less. It helpsfor better yarn elongation.
xii) During Running-in the end Breakage should be kept to a minimum,hence use lighter Travellers.
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RING AND RING TRAVELLER SYSTEM
RING TRAVELLERS
There is no specific formula for choosing the right traveller .............But there is an organized method for selection, based on knowledgeof traveller characteristics and experience in traveller application.Travellers selection has no hard and fast rules, but the choice oftraveller is very important in producing good yarn on a firm package.The basic requirement is simple - for any yarn number, a certainspecific weight of traveller is required. But the weight is distributed ontravellers of many shapes and styles designed to correspond with thetype of ring used and the yarn to be processed.
The two important aspects of matching ring traveller combination arethe area of contact between ring and traveller and clearance betweenring and traveller for yarn to pass. Large area of contact reduces thespecific pressure between ring and traveller there by reducing thefriction between them which should give lesser end - breakage rate.More clearance between ring and traveller can reduce the hairinessin yarn because of less tendency of contact zone between ring andtraveller to pull the fibres from yarn which result into hair.
T-ring
Contact Surface
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TRAVELLER SPEEDS / PERFORMANCE CALCULATIONS
in m/s. (rounded figures), ring diameter 36-70mm
Formula : Ring Diameter (mm) x π x n (rpm) = m/s
1000 x 60
(Feet / min ~ m/s x 200)
Performance calculations
Delivery : L = Delivery in m/min
P = Production in g/h perspindle
n = Spindle speed in rpm
T/m = Twists in m
η = Efficiency
mm inch
70 2 3/4 33 34 36 38 40 42
67 2 5/8 31 33 35 36 38 40 42 43 45
63 2 1/2 29 31 33 34 36 38 39 41 42
60 2 2/8 28 29 31 33 34 36 37 39 42 42 44 45
57 2 1/4 25 27 28 30 31 32 34 35 37 38 40 41
54 2 1/8 25 26 28 29 31 32 34 35 36 38 39 41 42 43 45
51 2 24 25 26 28 29 30 32 33 34 36 37 38 40 41 42
48 1 1/8 22 24 25 26 27 29 30 31 32 34 35 36 37 39 40 41 42 44
45 1 3/4 21 22 23 24 26 27 29 29 30 31 33 34 35 36 37 39 40 41 42 43 44
42 1 5/8 20 21 22 23 24 25 26 27 28 29 30 32 33 34 35 36 37 38 39 40 41 43 44 45
40 1 9/15 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 41 42 43
38 1 1/2 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 40 41 42 43 45 46 47 48 49 50
36 1 27/64 23 24 25 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 41 42 43 44 45 46 47
9000
9500
10000
10500
11000
11500
12000
12500
13000
13500
14000
14500
15000
15500
16000
16500
17000
17500
18000
18500
19000
19500
20000
20500
21000
21500
22000
22500
23000
23500
24000
24500
25000
9000
9500
10000
10500
11000
11500
12000
12500
13000
13500
14000
14500
15000
15500
16000
16500
17000
17500
18000
18500
19000
19500
20000
20500
21000
21500
22000
22500
23000
23500
24000
24500
25000
Ring Ø
L =n
T/m
Production :
P =L x tex x 60 x η
1000
or
P =n x tex x 60 x η
T/m x 1000
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SETTING OF THE TRAVELLER CLEANER
The use of Traveller cleaners (Fluff Collectors)is highly recommended, because they keepthe travellers free from fibre fly. If no travellercleaners are installed or if they are installedtoo far away from the ring, the traveller maybe blocked through accumulating fibre fly. Thisresults in an increase of your breaks. Anotherconsequence may be rough yarns that impair
the yarn quality.
Traveller cleaners being installed with the correct distance to the ringdo much attribute to optimum operating results and low yarn breakvalues. For each traveller profile the distance ‘b’ is mentioned in thetable given below :
TypeWire
section12/O
<10/O
<8/O-4/O 3/O-3 4-10 14-16
Flange - 1
M1 Flat/UDR 1.6 1.8 2.0 2.1
EM1 Flat/UDR 1.6 1.8 2.1 2.2 2.6 3.0
EL1 Flat/UDR 1.6 1.8 2.1 2.2 2.6 3.0
U1UM UDR 1.5 1.6 1.7 1.9 2.2
U1UL UDR 1.5 1.8 1.8 2.1
EM1 HO(DR) 1.8 1.9 2.0 2.1
M1 HO(DR) 1.8 1.9 2.0 2.1
P1 HWO(UDR) 1.9 2.0 2.1 2.2
EP1 HWO(UDR) 1.9 2.0 2.1 2.2
Flange-2
M2 Flat/UDR 1.9 1.9 1.9 2.2 2.4
EM2 Flat/UDR 2.2 2.4 2.4 2.8 2.8
b
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Flange 2Flange width 4.0 mm
Flange 1/2Flange width 2.6 mm
Flange 1Flange width 3.2 mm
RING PROFILES
DESIGNATION OF THE RING PARTS
A Inner diameter
B Fitting diameter
C Shoulder diameter(largest outer diameter)
D Ring height
D1 Height above ring allD2 Height below ring all
E FlangeF Flange width
G Flange crown
H Outer flange radius
I Raceway of ring
K Web
L Shoulder
M Slot for circlip
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RING SHAPES
Steel ring Steel ring with aluminium adapter
Single flange rings
FIXING METHODS
Circlip Aluminium holder
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WEAR & LIFE OF THE RINGS
A ring usually should be considered worn and due to be replacedwhen its nominal size of flange is reduced of 5% and more. Forexample, the nominal size of Flange 1 new ring is 3.2 mm, therefore,it should be replaced when it measures 3.05 or less. It should beremembered that due to manufacturing tolerance, some new flange 1rings can range between 3.15mm and 3.25mm, therefore it is importantto keep record of actual size of the rings when they are new in orderto avoid misjudgement in wear determination.
The main cause of ring wear is due to micro-welding points betweenthe traveller and the ring, consequently the longer seriously worntravellers are left operating on the ring, the more micro-welding pointsresult and the shorter the ring life. Therefore, the selection of suitabletravellers and the traveller change cycle are the prime factors relatedto the life and performance of the rings (this apply to rings of samequality and under same operating conditions).
Some spinning mills replace the travellers only after very long intervals(say 4-6 weeks) because when they inspect the travellers after thechange, they find that some travellers seem to be in acceptable wearcondition, without realising that actually these travellers have beenmounted recently to replace what have already burnt and flew offduring the running cycle.
By the same indication, when suitable travellers are operating properly,with a very slow rate of wear, the less micro-welding points appear,the longer the ring life becomes.
The following table is a guide line to estimate the life of rings inmonths to the maximum life of the travellers in days and percentageof worn travellers found after the replacement.
Legend :
1) When the maximum life of travellers is 5 days (meaning thetravellers are still operating within the tolerance of yarn breakageand quality) when there is 2.5% burnt travellers, estimated life ofrings is 18 months, while with 5% burnt travellers, life of rings is17 months.
2) When the maximum life of travellers is 28 days, and there is 2.5%and 5% burnt travellers, then estimated ring life is 72 and 68months respectively.
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RUNNING IN OF RINGS
j The preferable count and the material 40s cotton.
j The rings have to be free of play. Concentric to the spindle andfixed horizontally into the ring rail.
j To improve the running properties of the ring smoothening theraceway.
j Choose the recommended travellers shape and optimum number.
j Avoid to change traveller shape, yarn quality and count.
j Immediately before the start, the rings should be wiped gentlywith a soft cloth.
j It is normally not necessary to clean the ring track during therunning in phase.
j As far as possible, change travellers always at the beginning ofthe last third of the cop.
Traveller range ISO 18 to 90 is recommended No. 12/O - No. 4
Example : 40s Count
Further traveller changes depend on the rate of traveller wear and arerequired after longer intervals only. Therefore continue to check thetraveller wear at regular intervals at the beginning.
Traveller No.Change
Change Time Comments
8/0 30 Min. change - 4 times Start at 70% of thefinal spindle speedand then.
1 Hr. Change - 4 times -do-2 Hr. Change - 4 times -do-4 Hr. Change - 4 times -do-8 Hr. Change - 4 times -do-
9/0 8 Hr. Change - 4 times Increase 10%spindle speed
9/0 24 Hr. 7 times -do-
10/0 8 Hr. - 2 change Increase 10%spindle speed.
10/0 24 Hr. - 4 time 100% spindle speed.
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Traveller Selection for Synthetics
Count
NE
Traveller
Number
Flange - 1 Flange - 2
Normal CR/AW CR/AWNormal
8 12-16 – – H2/P2/U2UM/C2F EH2/EP2/U2UM/E2F
12 8-11 – – H2/P2/U2UM/C2F EH2/EP2/U2UM/E2F
18 5-8 M1/P1/U1UM EM1/EP1/U1UM H2/P2/U2UM/C2F EH2/EP2/U2UM/E2F
20 4-7 M1/P1/U1UM EM1/EP1/U1UM H2/P2/U2UM/C2F EH2/EP2/U2UM/E2F
24 1-4 M1/P1/U1UM EM1/EP1/U1UM M2/H2/U2UM/C2F EM2/EH2/U2UM/E2F
30 2/0-2 M1/U1UM EM1/U1UM M2/U2UM/C2F EM2/U2UM/E2F
34 3/0-1 M1/U1UM EM1/U1UM – –
40 7/0-3/0 M1/U1UM EM1/U1UM – –
45 9/0-6/0 M1/U1UM EM1/U1UM – –
55 11/0-7/0 M1/U1UM EM1/U1UM – –
60 12/0-8/0 M1/U1UM EM1/U1UM – –
70 14/0-10/0 L1/U1UL EL1/U1UL – –
80 16/0-12/0 L1/U1UL EL1/U1UL – –
Count
NE
Traveller
Number
Flange - 1 Flange - 2
Normal CR/AW CR/AWNormal
8 10-14 – – H2/P2/U2UM/C2F EH2/EP2/U2UM/E2F
12 6-9 – – H2/P2/U2UM/C2F EH2/EP2/U2UM/E2F
18 2-6 – – H2/P2/U2UM/C2F EH2/EP2/U2UM/E2F
20 2/0-3 M1/P1/U1UM EM1/EP1/U1UM H2/P2/U2UM/C2F EH2/EP2/U2UM/E2F
24 3/0-2 M1/P1/U1UM EM1/EP1/U1UM M2/H2/U2UM/C2F EM2/EH2/U2UM/E2F
30 5/0-1/0 M1/U1UM EM1/U1UM M2/U2UM/C2F EM2/U2UM/E2F
34 6/0-2/0 M1/U1UM EM1/U1UM – –
40 9/0-5/0 M1/U1UM EM1/U1UM – –
45 11/0-8/0 M1/U1UM EM1/U1UM – –
55 13/0-9/0 M1/U1UM EM1/U1UM – –
60 14/0-10/0 L1/U1UL EL1/U1UL – –
70 16/0-12/0 L1/U1UL EL1/U1UL – –
80 18/0-14/0 L1/U1UL EL1/U1UL – –
90 20/0-16/0 L1/U1UL EL1/U1UL – –
100 22/0-18/0 L1/U1UL EL1/U1UL – –
120 26/0-22/0 L1/U1UL EL1/U1UL – –
RING TRAVELLER RECOMMENDATIONS
Traveller Selection for Cotton
HO (DR) ForSynthetics and blends
HWO (UDR) for Cotton,synthetics and blends
You may select the Traveller number / type as per your mill conditions. For assistance.Please contact VXL RING TRAVELLERSNote : Guidelines for Travellers selection are specified based on our experience.
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PACKING DETAILS
To eliminate moisture content, the traveller together with anti-rust papersare put in a quality polythene bag and are then packed in plasticboxes of specific dimensions.
The chemically anti-rust brown papers should not be removed unlessthe travellers are taken to production floor. If it is removed, theatmospheric moisture and oxygen contents will cause the traveller tobecome rusty.
1M = 1000 Nos.
For 1 Flange 1/0 - 30/0
1 Box Contents 10m = 10,000 Nos.
For 2 Flange - 1/0 - 10/0
1 Box contents 10m = 10,000 Nos.
No - 1 to 30
1 Box contents No - 1 to 5 10m = 10000 Nos.
No - 6 to 12
1 Box contents 5m = 5,000 Nos.
No 13 - 30
Quantity packed depends on the size
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VXLRT SALES AND SERVICE CENTRES
Pakistan
Ameerco32-E, Main Market,Gulberg - II, LahorePakistan.Phone : 0092-42-5756067Cell No : 0092-300-8412399Email : [email protected]
Techno Textile32-E, Main Market,Gulberg - II, LahorePakistan.Phone : 0092-42-5756067Cell No : 0092-300-8412399Email : [email protected]