This document discusses winding, which is an important operation in the spinning section that creates large yarn packages. It describes the three zones of winding and the two types of winding: spindle drive and friction drive. It also provides details on the components of an autoconer winding machine, including the cradle, drum, magazine, tension assembly, yarn clearer, and others. The working principle and requirements of the winding process are explained.

1. MEHRAN UNIVERSITY OF ENGINEERING
AND TECHNOLOGY JAMSHORO

3. PRESENTED TO:
SIR FAROOQ
PRESENTED BY:
SORATH ANSARI (11TE106)
ASWAD SOOMRO (11TE93)
KIRAN MEMON (11TE53)
HAMMAMA SOHAIL (11TE47)
WAJID ALI CHANA (11TE45)

5.  Winding is one of the most important operation,
which is mainly occurred in spinning section.
 The creation of large yarn packages that can be
easily unwound, is called winding.
 This makes using the yarn on subsequent
machines both easier and more economical.
 Three zones of winding:
1. Unwinding zone
2. Tension and clearing zone
3. Winding zone

7.  To prepare the bigger package from ring bobbin.
 To remove spinning faults.
 To wax the material.
 To improve the quality of yarn

8. There are two types of winding
1.Spindle drive: Where the spindle upon which the
package is placed is driven directly.
(a) Constant speed winder
(b) Variable speed winder
2.Friction drive: where the spindle upon which the
package is placed is free to rotate and package is
driven through friction by contact with a driven
drum.

9.  CRADLE:
Its function to provide setting to cone having
package holders, it lies on upper part of
machine on drum.
 Drum:
It a polished surface metallic drum slightly cone
type .It has cut marks or grooves cut in to it at its
surface to help the cross winding of packages.

10.  Magazine:
Magazine is the main component
of the autoconer machine its
function is to hold the cops
for winding its capacity lies up to 9 cops.
 Tension assembly:
Tension assembly provides sufficient tension to
the yarn during unwinding from cope to winding
on to cones.

11.  Yarn clearer:
Its function is to removes the faults
such as thin and thick places,
neps, hairiness according to the
set value.
 Waste suction pipe:
During yarn cutting and splicing it sucks the
waste yarn.

12.  Bobbin plate:
The function of plate is to rotate the bobbins one
by one.
 Bobbin holder:
It is a disk type wheel ,its functions is to hold the
filled bobbins for unwinding process.
 Wax motor:
Its function is to run wax bush continuously.

13.  Wax bush:
To provide smooth surface to yarn wax is applied
especially to the yarn intended for knitting, the
function of wax bush is to apply wax to yarn to
make its hairs sticky.
 Suction mouth:
When ever yarn breaks during
winding the package move in
opposite direction with slow
speed during that time it sucks
the broken yarn end from the
package and take it for splicing.

14.  Retie pipe:
It take the yarn end from bobbin toward splicing
mechanism.
 Splicer:
The splicing mechanism performs
the knot free joining of the two yarn
ends after yarn breakage.
Now a days air splicing is used.

15.  Dust removal unit:
It collects the dust and fiber fly.
 Traveling cleaner:
It moves from one end to another
end of machine to remove and
suck the dust ,fly and other
contaminant particles and
keeps winding unit clean.

16. WORKING PRINCIPLE

17. Winding process should be accurate for
accelerate the next fabric manufacturing
process. winding process should fulfill the
following requirements……..
 Winding process should be easy.
 Characteristics of the yarn should not be change
 Winding process should be economical.
 winding faults should be minimize.
 Yarn package size and shape should be
suitable.

18. •Yarn package should be cheap in cost .
•Avoid excess in looseness or tightness.
•Exact package hardness.
•In winding, yarn knots should be smaller in size and
amount of knots should be minimum.

19. In auto cone department the humidity and
temperature are maintained according to the
requirements throughout the year.
Normally ranges are:
humidity% 55~80%
temperature 22~39.5℃

20. If winding tension is selected properly, the
following tensile properties are not affected
 tenacity
 elongation
 work- to- break
But excessive tension in winding will deteriorate
the above said tensile properties.

21. The aim of the modern automatic winder is to
make the wound package as uniform as
possible along with achieving higher production,
better quality, and lower power consumption per
kg of product and flexibility.