Roving Ring

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Operating instruction

Roving frame F 33 / F 11

Please make sure that this instru ction m anual is handed over to the perso ns in ch arge of the relevant operating and

maintenance wo rk. Should this m anual not be accessible to these peop le at all times, it does no t fulfi l l its purpo se.

This manual as well as all its enclosures are entrusted to the recipients personal charge but remain the copyright of Rieter.These papers may not be copied, made accessible to third persons or their contents made available without the writtenpermission of Rieter.

Technical modifications of the machines described herein may be carried out only with the prior written agreement of Rieter.

We reserve the right to modify the machinery described in this instruction manual as we deem necessary within the framework

of technical development at any time and without giving special notice.

Rieter Machine Works Limited, CH-8406 WinterthurTelephone: +41 52-208 71 71, Telefax: +41 52-208 83 20
http://pdf%27s/10153733-en-.pdfhttp://pdf%27s/10153733-en-.pdfhttp://pdf%27s/10153733-en-.pdfhttp://pdf%27s/10153733-en-.pdfhttp://pdf%27s/10153733-en-.pdfhttp://pdf%27s/10153733-en-.pdfhttp://pdf%27s/10153733-en-.pdfhttp://pdf%27s/10153733-en-.pdfhttp://pdf%27s/10153733-en-.pdfhttp://pdf%27s/10153733-en-.pdfhttp://pdf%27s/10153733-en-.pdfhttp://pdf%27s/10153733-en-.pdfhttp://pdf%27s/10153733-en-.pdf


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1. Gearing plan

Key:

Ts = Creel change gears

Ks = Constant draft change gearsPs = Draft change gears

Ps1 = Break draft change gearsM1 = Main drive motor (flyers)

M2 = Bobbin drive motor (tension levelling)

M3 = Bobbin rail movement, drive motor withgears

M4 = Drafting system drive motorD1 = Tube diameter (53.5 mm)

Sp = bobbin diameter (152 or 177 mm)

Gearing plan, Formulas and Tables

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2. Drafting system

Key:

Ts = Creel change gearsKs = Constant draft change gears

Ps = Draft change gearsPs1 = Break draft change gears

M4 = Drafting system drive motor

3. Formula for calculations

3.1 Total draft in drafting system St

KsSt = 4.2x

Ps

3.2 Break draft Vv

Vv = 0.0416x Ps 1

3.3 Creel change gear Ts

Normally 3 creel change gears Ts are suppliedwith the roving frame:

66 teeth for cotton, combed

67 teeth for cotton, combed68 teeth for cotton, carded70 teeth for synthetic fibres


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3.4 Possible number of teeth

Ts = 66, 68, 70 Feed (frame)

Ps = 25 - 80 main draft

Ps1 = 26 - 29 Break draft

The change gears are only allocated in accordance

with the machine ordered.

3.5 Table showing total draft in drafting system St

Use only hardened change gears!

Ks = 83

Ps St Ps St

50 6,972 73 4,775

51 6,835 74 4,711

52 6,704 75 4,648

53 6,577 76 4,587

54 6,456 77 4,527

55 6,338 78 4,469

56 6,225 79 4,413

57 6,116 80 4,358

58 6,010

59 5,908

60 5,810

61 5,715

62 5,623

63 5,533

64 5,447

65 5,363

66 5,28267 5,203

68 5,126

69 5,052

70 4,980

71 4,910

72 4,842

Ks = 110

Ps St Ps St

25 18,480 48 9,625

26 17,769 49 9,429

27 17,111 50 9,240

28 16,500 51 9,059

29 15,931 52 8,885

30 15,400 53 8,717

31 14,903 54 8,556

32 14,438 55 8,400

33 14,000 56 8,250

34 13,588 57 8,105

35 13,200 58 7,966

36 12,833 59 7,831

37 12,486 60 7,700

38 12,158 61 7,574

39 11,846 62 7,452

40 11,550 63 7,333

41 11,268 64 7,21942 11,000 65 7,108

43 10,744 66 7,000

44 10,500 67 6,896

45 10,267 68 6,794

46 10,043 69 6,696

47 9,830 70 6,600


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4. Table showing break draft Vv

Use only hardened change gears!

09.2002/07

Wechselrad

Ps1 Vv

26 1,08

27 1,12

28 1,16

29 1,20


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3. Bobbin rail speed (explanation of data screen 22)

Roving

Ne

Roving

Nm

Bobbin rail speed

Windings / mm lift

0,5 0,85 0,24

0,6 1,0 0,27

0,7 1,2 0,30

0,8 1,35 0,32

0,9 1,5 0,34

1,0 1,7 0,36

1,1 1,86 0,38

1,2 2,0 0,41

1,5 2,5 0,45

1,8 3,1 0,50

2,0 3,4 0,55

The bobbin rail speed must be set according to the

table opposite. The winding distance is checked on

the first layer of the empty tube.

With the standard setting, it should still be possibleto recognise the colour of the tube between the

windings.

Altering the bobbin rail speed also alters the Dm-

compensation.

Key:

1 = Normal winding2 = Winding too close together

3 = Winding too far apart

Programming

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8. Standard screens

8.1 Standard screen 1 All data

Roving L =

Set roving length of a full bobbin (data screen 51)

Current L =

The roving length yet to be produced is displayed.

If the machine is still producing, the display shows

the current delivery speed.

If the machine is still producing, the display shows

the current flyer speed.

Next doffing in:The production time remaining until the next doffing

is displayed.

Bobbin diameter:

The current calculated bobbin diameter is displayed.

Shaded field

A current malfunction is displayed.

If there are several current malfunctions press the

STOP button (0) to acknowledge and cancel the

malfunction shown once it has been remedied. Thenext malfunction is then displayed.

Doffer and bobbin changer graphics are not dis-played on the F11.

Operating instructions are displayed.

Shift efficiency

The shift efficiency of the current shift is displayed.

Bobbin change with config. doffer manual operation:

Press F8 = Travelling cleaner goes into

parked position.Wait.

Hold down F6 = Doffer beam moves down to

SQ63

Put tubes on doffer beam and remove bobbins.

Lightly press F5 = - The doffer beam moves up

to SQ61

- The travelling cleaner starts up.

+F3302

Programming

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1. General

The operating principle of the PK5000 load carrier isbased on a pneumatic load on the 3 top rolls.

The PK5000 load carrier is suitable for staple fibres

up to 60 mm.

+ F3300

The pressures from the load on the 3 top rolls isadjusted centrally and continuously via a pneumatic

regulating system. This ensures even pressure app-

lied at all spinning points.

The PK5000 load carrier offers the possibility of acentral partial relief.

The PK5000 load carrier comprises:

1 = Support2 = Carrier 3 = Operating knob

4 = Weighting element top delivery roll

5 = Weighting element top cradle roll6 = Weighting element top feed roll

7 = Top delivery roll

8 = Top cradle roller (always 25 mm)

9 = Top feed roll

10 = Pneumatic spring

Diameter of top rolls:

PK5025 PK5035

max. min. max. min.Top delivery roll 28 mm 25 mm 35 mm 32 mm

Top feed roll 28 mm 25 mm 35 mm 32 mm

Drafting system PK5000

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2. Technical description

2.1 Dimensions


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3. Top rolls

The following parts are used in the PK5025 andPK5035 load carriers:

The top roll shafts are type LP 315.

The top roll shaft LP 317 is used only for the cradlelong.

The maximum rated load on the top roll shaft is 35kg.

Top roll cots with PRESS-FIT.

3.1 Lubricants for re-lubricating the top roll ball bearings

The top roll ball bearings are lubricated in the factorywith Staburags NBU 12/300 made by Klber Lu-

brification Munich.

Alternatives:

Complex soap grease

Worked penetration: approx. 300 mm / 10 at 25C

Drop point: >200C

Useful temperature range: -20C to +120Ce.g. SKF grease TG5-26878

Calcium-saponified roller-bearing grease

Worked penetration: approx. 265 mm / 10 at 25C

Drop point: >190CUseful temperature range: -30C to +60C

The top roller ball bearings require re-lubrication with1 pump stroke after 30,000 hours.


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3.2 Regrinding top roll cots

The top roll cots of the cradle rolls must never be

reground.

When regrinding the top roll cots of the feed and

delivery rolls, respect the minimum = 31 mm.

The grinding interval depends on the degree of rub-

ber hardness and the material being processed:

Delivery rolls = 2,000 to 4,500 hoursFeed rolls = 4,000 to 9,000 hours

4. Spacers

Key:

1 = Cradle

2 = Spacer 3 = Guide bar

X = Cradle aperture (thickness)

To ensure good roving quality it is advisable to keepthe gap small between the top delivery roll and the

top apron.Make sure that the delivery condenser can move

freely (at least 1 mm play).

The cradle aperture X also affects the quality of

the roving.

Result of a small cradle aperture X:Better Uster values on the roving frame but

worse working behaviour on the roving frame- draft-associated problems (sliver piecer)- more slubs and snicks (thick and thin spots)

- greater susceptibility to fluctuations intemperature and blends

Hence more downtimes for the machine.

Result of a somewhat larger cradle aperture X:

Uster values on the roving frame are 0.2 0.4%worse but

good working behaviour on the roving frame

good working behaviour on the ring-spinning

machine

up to 30% fewer end-breaks no measurable difference in the Uster value of the

yarn

better IPI values in the yarn.

1

2

3

X

Spacers

Type Colour Thickness X

OLc22 white 3.5 mm

OLc24 black 4.4 mm

OLc26 green 5.9 mm

OLc27 blue 8.9 mm

OLc28 brown 11.1 mm

Roving count Cradleaperture(X)Ne Nm tex

up to 1.0 up to 1.7 up to 590 8.5 mm

1.1 1.8 1.8 3.0 590 330 6.5 mm

1.8 2.5 3.0 4.2 330 220 6.5 mm

above 2.5 above 4.2 above 220 4.5 mm


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5. Condenser

The choice of condenser is of major importance for

the quality of the roving and the working behaviourof the roving framer.

It is possible that the delivery condenser (3) is diffe-

rent, depending on the material being processed.

Standard settings:

Double condensers may also be used at delivery.(Aperture up)

Standard settings:

Key:

1 = Back condenser

2 = Middle condenser

3 = Delivery condenser

Feed

sliver

count

Ne 0.16 0.12Nm 0.27 0.22

tex 3600 4900

Ne 0.12 0.10

Nm 0.20 0.17

tex 4900 5900

Position Aperture Colour Aperture Colour

Feed 12 mm black 14 mm red

Middle 10 mm grey 12 mm white

Delivery 10 mm beige 12 mm white

Colour /

with mm Ne Nm tex

blue / 17 mm 0.5 0.6 0.8 1.0 1200 1000

yellow / 14 mm 0.6 1.0 1.0 1.6 1000 600

green / 11 mm 0.7 1.4 1.2 2.5 800 400

red / 9 mm 1.0 2.0 1.6 4.0 600 250

black / 7.5 mm 1.1 3.0 2.0 5.0 500 200

brown / 6 mm 2.0 3.5 3.0 6.0 300 200


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6. Standard settings for drafting system

The condensers and the spacers must be adju-

sted to the relevant sliver and roving counts.

Q = Always measure the forward offset (G) with

the original top roll diameter (35 mm or 28 mm).

Standard setting for the break draft distance (D):

Longest fibre + 31 33 35 mm.

Setting 1 2 3

Raw material:

for cottons,synthetics and

blends up to 40 mm

for longest cottons,synthetics and

blends up to 50 mm

for synthetics andblends up to 60 mm

A = Cradle length 34.5 mm 45.0 mm 60.5 mm

B = Guide bar 24.0 mm 33.0 mm 48.0 mm

C = Main draft distance bottom rolls 49.0 mm 60.0 mm 76 mm

D = Break draft distance bottom

rollsmin. 60.0 mm min. 60.0 mm min. 70.0 mm

E = Main draft distance top rolls 55.0 mm 66.0 mm 82.0 mm

F = Break draft distance top rolls min. 59.0 mm min. 59.0 mm min. 70.0 mm

G = Forward offset 1st

top roll Q 4.0 mm 4.0 mm 4.0 mm

H = Backward offset 2ndtop roll 2.0 mm 2.0 mm 2.0 mm

J = Backward offset 3rd

top roll 0.0 mm 0.0 mm 0.0 mm


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11. Manual strength test of roving

The manual testis conducted as follows:

1. Stand a full roving package (1) on end on a hard

table top (2).

2. Take hold of the roving with your fingers at (3)

and slowly pull (taking 12 to 18 sec) in the directi-

on of (4). The tensile force of the roving will make

the bobbin slowly turn.3. When the roving breaks between 3 and 4 the di-

stance measured between 3 and 4 indicates the

tensile strength of the roving. Perform at least 5

tests and calculate the average.

Dis tance 3 to 4 Assessment:

300 to 500 mm = soft roving twist

500 to 800 mm = norma roving twist

800 to 1100 mm = hard roving twist

over 1100 mm = roving twist is too hard,

cannot be drawn on the

ring-spinning frame.

Technological Notes

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Key:

1 = Power unit (both sides of the machine)

2 = Suction unit3 = Creeling

4 = Drafting system+G0002

5 = Headstock6 = ROBOdoff

7 = SERVOdisc8 = Drive unit

9 = Transfer station (Link)

10 = Ring spinning frame front11 = Ring spinning frame rear

12 = Left-hand side of the machine

13 = Right-hand side of the machine

ROBOdoff

+G3310SERVOdisc

+G3311

ROBOload

+G3312

Headstock

+G3303 part 3

Pneumatic system

+G3303 part 2

Suction unit

+G3303 part 5

Change points

+G3303 part 1

Programming

+G3305

Drive unit

+G3303 parte 6

Section+G3303 part 4

Creeling+G3303 part 3

Operation

+G3302

General data

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Ring spinning machine G 33


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2. Configuration, designation and method of operation

2.1 Method of operation

Key:

1 = Drafting system

2 = Bottom delivery roller / Suction drum3 = Suction tube

4 = Thread guide5 = Separator

6 = Balloon checking rings (BER)

7 = Ring frame8 = Spindle

9 = ROBOdoff 11 = Flanged shaft for 4 spindle drive

12 = SERVOdisc13 = Protective rail

The drafting system(1) refines the roving drawn infrom the roving bobbin until it reaches its final count.

The fibre fleece leaving the bottom delivery roller /

Suction drum (2) is rapidly twisted into a thread. Thetwist in the thread is evenly distributed by means of

the spindle and the ring traveller. The thread goes

from the bottom delivery roller / Suction drum (2) tothe ring traveller and the spinning tube, which toge-

ther with the spindle (9) forms a single unit, and iswound around the spinning tube.

In the event of an end-break the fibres leaving thebottom delivery roller / Suction drum (2) are caught

by the suction tubes (3) and collected in the suctionunit.

The 4 spindle tape drive (11) ensures quiet, energy-

saving operation.

ROBOdoff (10)+Instruction G3310

SERVOdisc (12)+Instruction G3311

ROBOload+Instruction G3312

General data

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3.2 Drafting system (G 33)

Drafting system settings:+Instruction G0002

Drafting system load: pneumatic

Cage lengths A in mm:36.43 or 59

Diameter of rollers:

Bottom

roller

Top roller

novo minimum

B 27 mm 30 mm 28 mm

C 27 mm 27 mm 27 mm

D 27 mm 30 mm 28 mm

3.3 Drafting system (K 44)

Drafting system settings:+Instruction K0002

Drafting system load: pneumatic

Cage lengths A in mm:43

Legend:

1 = Suction drum 59 mm

2 = Middle bottom roller 27 mm

3 = Creel bottom roller 27 mm

4 = Casablanca type nip roll 30 mm

5 = Delivery top roller 30 mm

6 = Cradle top roller 27 mm

7 = Creel top roller 30 mm

8 = Space between delivery top roller and Casablan-

ca type nip roll 46 46.5 mm

9 = Backward offset at delivery top roller 0.5 mm

10 = Distance between delivery top roller and cradle

top roller 54.0 mm

11 = Backward offset at cradle top roller 5.5 mm

12 = Distance between cradle top roller and creel

top roller 73.0 mm

13 = Backward offset at creel top roller 3.5 mm

14 = Distance between suction drum and middle

bottom roller 50.5 mm

15 = Distance between middle bottom roller and

creel bottom roller 75.0 mm

16= Drum cover

17= Spacer plate in place on the cradle

General data

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3.4 Spindles, spinning tubes and spinning rings

Tube lengths (L):

Spindle pitch (T) 70 mm = 180 to 230 mm

Spindle pitch (T) 75 mm = 180 to 250 mm

Taper:1.64

Spindle:

HPS-18, CS-18 (max. rpm 18,000 min-1)

HPS-25, CS-25 (max. rpm 25,000 min-1)

Wharve diameter:21 mm or 25 mm

+Instruction G3303, part 1

4-spindle belt drive:

The spindles are fixed in the spindle frame.The spinning rings are centred in relation to the

spindles.

Spinning rings:

T-flange no. 1 (b = 3.2 mm) (36...48 mm)T-flange no. 2 (b = 4.0 mm) (45...51 mm)

ORBIT bevelled flange spinning rings (2) (36...42 mm)

ZENIT bevelled flange spinning rings (2) (36...42 mm)Support ring

Ring traveller (1)Spinning ring diameter in mm:

Pitch 70 mm: 36, 38, 40, 42 or 45 mmPitch 75 mm: 36, 38, 40, 42, 45, 48 or

51 mm

Spinning ring/Ring traveller regulations:+ Instruction T-flanges G0004

Instruction ORBIT and ZENIT G0005

General data

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1.2 Gearing plan with up to 624 spinning positions

Key:

1 = Headstock

2 = Drafting system drive rear3 = Spindle drive

4 = Break draftM1 = Spindle drive motor

M60/M61 = Drafting system feed tailstock

M80/M81 = Drafting system delivery tailstockM90 = Ring rail drive

M150 = SERVOdisc drive

E = Rear bottom roller (feed)

M = Middle bottom rollerA = Front bottom roller (delivery)

ZW= Belt pulley wharveZE = Belt pulley feed

ZM = Belt pulley middleZS = Belt pulley spindle

Change points

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2. Spindle drive

2.1 Belt pulley (ZS)

Wharve n-spindle rpm Distance ring

(18)

Belt pulley

(ZS)

Spanner size

mm

Torque

Nm

2123600 11,8 60 10 115

17700 11,8 80 10 115

Wharve n-spindle rpm Distance ring

(18)

Belt pulley

(ZS)

Spanner size

mm

Torque

Nm

25 14900 11,8 80 10 115

Key:

15 = Belt pulley (ZS)16 = Slotted cone

17 = Shaft18 = Distance ring

21 = Bore-hole with half thread

22 = Short half-bore-hole for disassembly

3. Break draft

The break draft table is included in the gearing plan.

10.2002/07

Change points

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The centering tube(67) with the centering pin (63)

in it is used to centre the thread guides.

The centering ring(67) with the centering pin (63)

in it is also used for other centering jobs:

preliminary centering the spinning rings

centering the spinning rings

centering the balloon-checking ringscentering the spinning rings with the RES spinningring centering device.

The preliminary centering gauge (66) is used forthe preliminary centering of new spinning rings.

The centering ring(64) is used for centering spin-ning rings.

The locating centre 1.5 mm (68) is used to cen-

tre the thread guides, especially where the directview from above is obstructed.

General data

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The centering ring (65) is used for centering the

balloon-checking rings

Bits holder (68) 1/4" x 300 with:

M5 screwdriver bit for centering the spinning ringsM4 screwdriver bit for the traveller clearers

Centring sleeve (71) for adjusting bottom roller gears

Roll tongs(73) with torque for bottom rollers.

+ Setting G3303 Part 4

General data

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4. Draft Height

4.1. Draft Height dependent on staple length

With the two-apron drafting systems it is possible toachieve optimal results with regard to yarn uneven-

ness as well as highest draft values. Compared with

other systems, our two-apron design is notably

trouble-free. There is a particularly wide draft range

(from 12 to 80) within which good Uster values areachieved. This

does not mean, however, that optimal values can

always be guaranteed with any material and any

draft. It is essential that the optimal spinning condi-tions be established.

Key:1 = 100% synthetic fibres 50 - 60 mm

Ne 10 - 40 (50)2 = 100% viscose / polyester 40 mm

Ne 10 - 60 (70)3 = Viscose / polyester 40 mmNe 12 - 70

5 = Polyester / cottonNe 12 - 70

6 = Cotton combed, long staple,Ne 60 - 160

7 = Cotton combed, long staple,Ne (20) 30 - 70

8 = Cotton cardedNe 5 - 30 (40)

T = Total draft (rate)N = Range, normal draftH = Range, high draft

Broken ends must also be taken into account. Neit-her the Uster values nor the breaking strength of the

single yarn are decisive factors on their own. Other

important factors are the staple, preparation and

roving twist, especially the height of the total draft and

its distribution, the setting of the break draft zone, thethickness of the spacers between nose bar and

cradle, and the grade of rubber used for the upper

delivery rollers.

Apart from these drafting aspects, end breaks may

also be significantly affected by other spinning para-

meters, such as ring diameter and section, traveller

number and type, tube length and diameter, andabove all spindle speed. These parameters, how-

ever, cannot be addressed in greater detail in the

present instructions.

In principle, to obtain good end break rates with

cotton, the total draft should lie roughly inside the

limits shown in the table opposite.

These limits must not be confused with those foroptimal Uster values, which must always be deter-

mined by trials, as they are strongly influenced by

other factors, particularly the material being spun.

Naturally, the table opposite is intended only as a

guideline.

The maximum draft possible, however, depends on

the material being processed.

When determining the daft on the ring-spinning fra-

me, the draft on the roving frame must also be takenin account, especially the minimum draft.

There are also limits on maximum weight allowedat feed on the roving frame:

Cotton max. Ne 0.10 Blends (cotton/poly) max. 0.115 100% Synthetic fibres max. 0.12

Drafting System R2P with Guide Arm P3-1

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4.2. Draft height according to the roving count

Cotton

Key:1 = Roving count (Ne)2 = Range carded3 = Range combed4 = Short staple5 = Medium staple6 = Long staple8 = Yarn count (Ne)

Drafting System R2P with Guide Arm P3-1

Roving Ring

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