Yaa Modern Drafting Organization Of Lap Former

Study of Lap Former as well as Its Modern Drafting System

Abeed Hasan
Dept. of Textile Engineering,
Khulna University of Engineering & Technology
Email: 1521033abeed@gmail.com

Introduction:
Lap former is a must needed machine for producing lap inwards spinning department of textile sector. Lap quondam machine is used for the grooming of lap. It is used later on completing the procedure of blow room. Each lap quondam machine contains some features which has mentioned inwards this article alongside its necessity inwards yarn manufacturing technology.

Fig: Modern lap quondam machine (E35 OMEGA lap)

The lap quondam has, furthermore, the line of forming the interfacing or lap, which is employed to feed the combing machine. The lap is obtained past times doubling a certainly break of slivers (from16 to 32) previously dependent plain to a drawing passage. The slivers are fed side past times side, passing, through rollers as well as halt motion. The slivers travel into the drafting department as well as thence calendar department to make a compact lap. Finally the lap is injure on to bobbin. In the lap former, the cloth nether goes a lite draft of simply about 1.5 to 2 times 1 a drawing aggregate of the type 2 on top of iii cylinders.

There are some modern lap quondam introduced past times Reiter & Trutchzler like:

1. Unilap
2. OMEGA lap.

Objective of this study:

• To know the characteristic of modern lap former.
• To know almost the lap former.
• To know almost the modern drafting system of lap former.
• To know almost the technological information of lap former.

Apparatus:

• E35 OMEGA lap

Description:

Objective of lap former:

1. To cut down the strain to frail comber reduce.
2. To cut down fiber damage.
3. To cut down direct chances of skilful fibers waste.
4. To cut down brusk fibers.
5. To cut down thick as well as sparse places inwards the sliver.
6. To command wastage.
7. To parallel as well as direct of fiber.
8. Not freely opening of fiber from sliver

Technical Data:

Technological information of: eastward 36

1. Application hit : 1 1/16 - 1 1/2
2. Sliver count hit : iii - vi k tex
3. Doubling max. : 28 plication
4. Draft : 1.4 - 2.4
5. Batt weight delivery max. : fourscore g/m
6. Delivery speed (constant) : 230 m/min
7. Production over : 600 kg/h
8. Lap width : 300 mm
9. Lap weight max. : 25 kg
10. Drafting organization : iii over iii (cylinder drafting system)

Features of modern lap former:

1. Auto doffing system.
2. Auto halt motion at sliver breakage.
3. Auto grain adjuster.
4. Auto leveling.
5. Auto lap carrying device.
6. Indicator lite for faulty location.
7. Lap length measurement unit.
8. Belt drafting organization i.e. OMEGA lap

Drafting System:
OMEGA lap eastward 35 alongside proven winding belt applied scientific discipline is the most economical combing grooming organization as well as provides the qualitatively best weather condition for high-performance combing. Lap production is based on the unique winding belt technology. The belt especially developed for this piece of occupation is wrapped simply about the lap every bit it builds up. This results inwards an optimal distribution of contact pressure level over the circumference of the lap. This enables production of a uniformly injure lap of optimal quality, at simultaneous maximum productivity as well as speed.

Components of OMEGA lap:
The eastward 35 OMEGA lap consists of inwards feed, winding caput as well as delivery sections.

1. The inwards feed department comprises the creel, arranged centrally, the spider web tabular array alongside the 2 drafting units, positioned linearly as well as without deflection plates, as well as spider web doubling toward the winding head.
2. The winding caput accommodates the drive, 4 calendar rolls as well as the belt winding as well as tensioning system.
3. At the customer‘s option, the delivery department tin survive supplied for semiautomatic or fully automated lap transport.
4. Draw frame slivers are fed from cans to the OMEGA lap. The cloth is fed via sliver preserving guide elements to the 2 drafting units, where 2 webs are formed.
5. The webs are set 1 on top of the other on the spider web tabular array as well as fed to the winding head. The cloth passes betwixt the 4 calendar rolls, which compress the spider web into a uniform batt. Studies pick out shown that 4 calendar rolls make ameliorate technological results than systems using iii rolls.
6. The batt is injure onto a underground past times agency of belt technology. The total lap is thence ejected from the winding caput as well as placed on a lap trolley or lap conveyor belt.

Operating Principle of the Belt System of Drafting zone:
Production of laps past times agency of the belt stimulate as well as tensioning organization is fully automated.

1. The empty underground is inserted; the 2 winding discs are unopen pneumatically to secure the underground axially inwards position.
2. The belt unit of measurement is closed, the belt is tensioned, as well as the fiber fleece is fixed pneumatically inwards seat on the tube, the winding-up procedure starts.
3. The batt is injure upwards at constant speed until total lap diameter is reached.
4. The machine is stopped, the belt unit of measurement is opened, total lap is ejected toward the front.

Fig: Drafting organization of E35 OMEGA lap

Advantages:

1. Gentle spider web guidance from initiatory of all to goal of the lap
2. Uniform pressure level distribution over upwards to 75% of the lap circumference
3. Very high batt uniformity as well as superior lap character
4. Constant winding speed of 180 m/min, regardless of staple length as well as lap diameter
5. Effective output of upwards to 520 kg/h
6. Low release energy consumption per kg of yarn

Conclusion:
Lap quondam is used to air current lap or batt past times reducing some wastage & brusk fiber inwards ameliorate oriented formation of the fiber. Previously some conventional method was used which has been replaced past times the modern belt organization drafting method of lap quondam similar OMEGA lap, which is to a greater extent than productive & economical.

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