A PRESENTATION ON PLANT TRAINING IN DCM TEXTILE

LIMITED PRESENTATION ON SPINNING

PRESENTED BYALOK ROY

DEPARTMENT OF JUTE AND FIBRE TECHNOLOGY

(INSTITUTE OF JUTE TECHNOLOGY)CALCUTTA UNIVERSITY

Fibre : A unit of matter characterized by flexibility, fineness, sufficient strength, elasticity and high length to width ratio.

Spinning : Spinning is a process where fibres are converted into yarn.

Yarn : A grouping of fibres twisted together to form a continuous strand.

PROCESS FLOW CHART BLOWROOM

 CARDING

BREAKER DRAW FRAME UNILAP

FINISHER DRAW FRAME

COMBER

ROVING FRAME

RING FRAME

AUTOCONER

PACKING

BLOWROOM

Blowroom is the first of yarn production in the mill spinning.Bales are taken in the blowroom and prepared for the process. The basic operation in the blowroom are:• Opening•Cleaning•Dust removal•Blending•Even feed of material to the card

BALEPLUCKR LA23/S

• Bales of varying heights can also be easily processed.

• It is very sturdy and robust machine capable of producing production up to 1600 kg/hr.

VARIO CLEAN LB 9/2The purpose of the condenser is twofold:• To transport cotton fibers

pneumatically in the form of tufts

• To de-dust these tufts at the same time.

The fan produces the air current required to transport the material. The stock is separated from the transporting air by the perforated drum and removed from the drum by the take-off roller . The exhaust air is deflected to the filter unit.

UNIMIX LB 7/4

Its objectives are:• .• To feed the material to the next

machine for further processing.

TECHNICAL DATA

Machine working width

1600mm

Production 800 kg/hrBeater speed 750 rpmFeed roller seed 11 rpm

FLEXI CLEAN LB 5/6• It is used for cleaning and extracting

dust from cotton of any origin and blends of cotton fibers very gently and effectively.

• The guide plates carry the tufts in a spiral manner over the grid seven times.

• Waste is removed periodically via the air lock roller.

• TECHNICAL DATA

Production 600 kg/hr

Beater speed 750 rpm

Feed roller speed 24 rpm

CARDING LC-333

Its objectives are:• Opening to individual

fibres• Elimination of Impurities• Elimination of dust• Disentangling of neps• Elimination of short

fibres• Fibre blending• Fibre orientation• Sliver formation

TECHNICAL DATA

Feed roller-L-in- 30 thouL-in-L-in 1,2,3- 8 thouL-in-cylinder- 8 thouCylinder-flat- All 8 thouCylinder-doffer- 5 thouC cleaner (front)- 10-12 thouC cleaner (back)- 16-12 thouCross to cross roller - 9.8 thou

Cylinder- P 2035Q X 0.40 Qube x Spark

Doffer- L 4030Q X 1.0 Qube X Spark

Required hank- 0.1400Measured hank-0.1500Draft- 100Diameter of cylinder- 1287 mmDiameter of doffer- 700 mmSpeed of cylinder roll- 550 rpmSpeed of L-in 1- 1345 rpmSpeed of L-in 2- 1530 rpmSpeed of L-in 3- 2000 rpmSpeed of feed roll- 10.9 rpmSpeed of flats- 320 mm/minWeb thickness- 1.03 mmTotal no of flats- 84Delivery speed- 182 m/minProduction- 80 kg/hr

 1. DIFFERENT SETTINGS 2.WIRE SPECIFICATIONS

BREAKER DRAWFRAME LD-2

Its objectives are:• Equalizing i.e. through doubling the sliver are

made even.• Parallelizing i.e. through drafting the fibers get

parallelized.•Dust removal.

Drafting arrangement – 4 / 3

No. of deliveries – 2

Diameter – Top (mm) Bottom(mm)

Front 26 40

Middle 29 30

Back 38 30

Roller gauge – 38/44 mm

Break draft – 1.5

Sliver Hank – 0.138 Ne

Delivery speed – 700 m/min

Efficiency – 85%

Auto can changer – Yes

Sliver monitor – No

TECHNICAL DATA

UNILAP LH-10

Its objective is:To form a lap of desired fineness, weight, length and fiber orientation to be fed to the comber for effective combing operation.

Doubling – 22

Drafting system – 4/4

Lap length – 250 m

Lap wt. – 70 g/m

Efficiency – 85.5%

Total draft – 1.64

No. of deliveries -1

TECHNICAL DATA

COMBER LK64

Its objectives are:•Elimination of a precisely pre-determined quantity of short

fibers.•Elimination of remaining impurities.• Formation of a sliver having maximum possible evenness.

TECHNICAL DATA

Feed/nip 5.2 mm

Nips/min 400

Lap wt. 80 g/m

Dia. of full lap 550m

Noil % 18.60

Point density of top comb 32 needles/cm

Drafting arrangement 3/5

Break draft 1.36

Hank delivered 0.115

Doublings 8

No. of deliveries 1

Delivery speed 207 m/min

Efficiency 90.8%

Can filling 6500m

FINISHER DRAWFRAME RSB851

Its objectives are:•To control the count variation within the sliver by using

auto levellers.•To make the required hank of sliver for feed to the speed

frame.

Doublings – 6Drafting arrangement – 3/3Type of weighing – Spring loaded

No. of deliveries – 1Diameter – Top (mm) Bottom(mm)

Front 38 40Middle 38 30Back 38 30Roller gauge – 39/43Break draft – 1.28Main draft – 4.61Total draft – 5.9Hank fed – 0.115Hank delivered – 0.120Delivery speed – 500 m/minEfficiency – 85%Auto can changer – YesAuto leveller – YesSliver monitor – Yes

TECHNICAL DATA

SPEEDFRAME LF1400

Its objective are:• To draft the sliver to

reduce weight per unit length

• To make conical or tapper shape of the bobbin

• Winding of roving into a package that can be transported on ring spinning machine.

TECHNICAL DATADrafting arrangement- 3/3

Type of drafting system- Pneumatic

Diameter- Top (mm) Bottom (mm)

Front 29 27

Middle 29 27

Back 38 27

Roller gauge- 45/55

Break draft- 1.1

Main draft- 7.75

Total draft- 7.83

Hank fed- 0.120

Hank delivered- 0.90

Flyer speed- 951 rpm

Delivery speed- 450m/min

RING FRAME LF 4200

Its objectives are:

•To reduce the number of fibres in the cross-section according to the count of yarn

•To impart twist to form the final yarn structure

•To wind the yarn on a bobbin maintaining proper yarn tension

TECHNICAL DATADrafting arrangement- 3/3 double apronDiameter- Top (mm) Bottom (mm)Front 19 27Middle 30 25Back 28.5 27Roller gauge- 42.5/60Ring dia.- 42mmBreak draft-1.12Total draft- 26.67Hank fed- 0.90Hank delivered- 24s COMNo of spindles- 864Spindle speed- 16100Traveller speed- 32 m/secNo. of spindle -200

AUTOCONER SCHLAFORST 338 TYPE RM

Its objectives are:•To make a bigger package which has much higher

content of yarn than bobbin.•To remove the faults that are generated in spinning i.e.,

thin, thick and weak places

No. of machine sections- 10No. of winding drums per section- 10Total no. of winding drums on machine- 60Spindle speed – 10500 rpmCreeling- Manual into circular magazines (6 pockets)Winding speeds- 1650 m/min

Diameter of drum- 95 mm

TECHNICAL DATA

CONDITIONING AND PACKING

Fig: sieger –ycp (yarn conditioning plant)

Its objectives are:• To improve the physical properties of yarn like strength, elasticity

etc.• To minimize monetary loss by selling yarns with standard moisture

content.

Temperature 550 C, 650 C (depending on the type of yarn being processed)

Pressure 130, 140 mBar

TECHNICAL DATA

THANK YOU