SPINNING LEARNERS

Metric and imperial Measurements:- Length:-   1 centimeter (cm) = 10 mm 1 centimeter = 0.3937 inch 1 meter = 39.370 inch 1 meter (m) = 100 cm 1 meter = 1.0936 yard 1 kilometer = 1000 meter  1 kilometer = 0.6214 mile 1 inch  = 2.54 cm 1 foot  = 0.3048 meter  1 yard = 36 inches 1 yard = 0.914 meter 1 mile = 1760 yard 1 mile = 1.6093 Km Weight:- 1 gram = 1000 mg 1 gram = 0.0353 oz 1 kilogram = 1000 g 1 kilogram = 2.2046 lbs 1 Lbs = 0.4535 kg 1 tone = 1000 kg 1 tone = 0.9842 ton 1 ounce = 437.5 grains 1 ounce = 28.35 g 1 pound = 16 oz 1 pound = 0.4536 kg

TEXTILE TERMINOLOGY Y ARN COUNTS:- TEX = Weight in grams of 1000 meter of yarn 1Tex = 1 grams/1000 meters Nm = Length in meters of 1 grams of yarn 1Nm = meters/grams             1000 meters/1000grams Ne = Number of Lea of 1 Hank (840 yards) contained in pound 1Ne = Hank/Lbs            1000m/590g Td or Den = Weight in grams of a 9000 meter 1Td = 1g/9000m            0.05g/450 m

AUTOLEVELLER :-     Autoleveller is a system measure sliver thickness controls the variation of sliver. And its help to maintain the UNIFORMITY. There are two types of autoleveller is given below. TYPES OF AUTOLEVELLER :- Open loop Autoleveller, Closed loop Autoleveller. OPEN LOOP AUTOLEVELLER :-     Open loop  Autoleveller is a system controls long term variation. its measure sliver in feed area after give communication in draft control unit and then correct delivery. Example:-     Finisher drawing. CLOSED LOOP AUTOLEVELLER :-     Closed loop  Autoleveller is a system controls short term variation. its measure sliver in delivery area after give communication in draft control unit and then correct feed. Example:-     Carding.

PARTS OF CARDING MACHINE :- • Chute feed Duct (DFK)direct feed for Carding • Feed Roller • Licker-in • SFL(Stationary Flat Licker-in) • Cylinder • Flats • SFD(Stationary Flat Doffer) • Doffer • Delivery trumpet • Sliver can OBJECT OF CARDING :-         This is a second process of spinning mill. Here we remove Trash, Neps etc...Straightening the fiber and convert Lap to sliver for further process. Open  the cotton tufts individual fibers. CUTE FEED DUCT :-      Nowadays all cotton mill having chute feed technology but some old mill using Lap feed (MANUAL FEED). The opened cotton material is dropped from blowroom to chute feed duct with the help of Blowing fan in blowroom. The duct feed the cotton tuft evenly to the card feed roller via feed plate. FEED ROLLER :-      Normally Two feed rollers are used in carding. One is opening the cotton it’s placed over the conveyor belt. Another one is used to feed the material to l...

PRODUCTION FORMULAS :-     In spinning mill we use production formula in short method. I recommend to use  formula in elaborate. First we need some basic details is given below GENERAL:- 1   METER = 1.094 YARD 1 LEA = 120 YARD 7 LEA = 840 YARD 1 KG = 2.20456 POUNDS 1 CM = 10 MM 1 INCH = 2.54 CM 1 INCH = 25.4 MM     In basically we use two formula mostly. one is where we have METER PER MIN and another one is where we have REVOLUTION PER MIN MPM FORMULA:- PRODUCTION FORMULA 8HRS = MPM *1.094*8*60/840/2.20456/ HANK * EFF /100*NO. OF DELIVERY EXAMPLE:- Delivery speed in MPM = 150 Hank = 0.120 Eff = 96%     In the above formula 8 means 8Hrs(Per shift), 60 means 60 Minutes = 150×1.09×8Hrs×60Min÷840÷2.20456÷0.120×96÷100*1 =339 Kgs/Pershift RPM FORMULA:- PRODUCTION FORMULA 8HRS =  RPM *8*60/36/840/2.20456/ COUNT / TPI *EFF/100*No. of delivery EXAMPLE:- Spindle speed in RPM = 1350 Hank = 1.14 Tpi = 1.59 Eff = 80%    ...