An experiment about the new technology of knitting machine.

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Sessional on TE3203
TE3204
Year-2021
FABRIC MANUFACTURING
ENGINEERING-II
LAB REPORT
Submitted By
Nazmul Hasan Anan
Roll-1721015
Year-3rd
Term-2nd
Submitted To
Md. Abdul Alim
Lecturer
KUET
Experiment No-02
Name of the Experiment: Study on Hand Sock Circular Knitting Machine-I)Yarn Path
Diagram II)Total no. of Needles III)Machine Parts

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Experiment No-02
Name of the Experiment: Study on Hand Sock Circular Knitting
Machine
I) Yarn Path Diagram
II) Total no. of Needles
III) Machine Parts
Introduction
The principles of socks knitting machines are like circular knitting. Good
quality products can be produced only when stop-motion and yarn-feeding
functions are set properly. In circular weft knitting, needles knit one after
the other in sequence, and loops are formed horizontally by needles
knitting around the cylinder, forming a tube. Hand socks machine are used
to make socks from single feed system. It is very simple mechanism.
Objectives
 To know about the operating system of this machine.
 To know about its function.
 The loop formation of this machine.

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Apparatus
I. Machine ( Hand Sock)
II. A4 Paper
III. Pencil/Pen
IV. Sharpener
V. Eraser
VI. Ruler
VII. Calculator
Experimental Procedure/Diagram
Specification:
 Machine name Hand socks circular knitting machine
 Model no IR-130
 Machine Dia. 4.5”
 Machine gauge 8
 No. of needle 112
 No of feeder Single
 Cam Knit cam (single)
 Manufacturer IR Engineering works (Pvt) LTD
 Origin Republic of Bangladesh

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Main Parts:
 Latch needle
 Cylinder
 Feeder
 Yarn carrier
 Knit cam
 Cylinder gear
 Bevel gear
 Handle
Tensioner/Guide
Stand
Needles Cone
Feeder
Handle
Fig-Passage Diagram of Hand Sock Circular Knitting Machine

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Working Principle:
At first we need to check that the machine has no problem and working
well and all the needles are ok. Firstly we need to take a cone placed at the
machine yarn carrier and yarn passing from cone to needle by yarn guide.
Then we need to take place the yarn into the needle to hold up the yarn on
it and all the needles must be in working position. After that we hold up the
machine handle and rotate the handle clockwise. During this operation we
can see that every needle comes to operation and creating loop by above
loop formation. We know that a sock has some parts according to its size.
At first we have to place an elastic yarn as feed to complete the elastic part.
It is about 30 coarse to complete the elastic part. We have to maintain a
uniform downwards tension of fabric to create a loop so we should place a
weight with fabric. After that we remove the elastic yarn and continuing the
rotation about 100 coarse to complete the leg part if sometimes the loop is
missing then this needle should to rising and after a rotation turn up the
needle down when it takes the yarn. After completing the leg part we need
to raise the half of total needles in out of operation from the back side of
the needle cam box. Then by rising one of operating needle from each side
we first rotate the handle clockwise for rising one needle and
anti-clockwise for rising another one needle from opposite side. Continue
this process until about 10-12 needles are in operation of front side of cam
box. After that we have to lowering the two needles each time from each
side and rotate the handle clockwise and anti-clockwise by following
previous theory. When all the needles come to operation then continue the

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first process about 110 rotations to make the feed side. At last the toe side
is stitched by a sewing machine to complete the one sock. The same theory
is applied to make another one. This is the process of making the one pair
of socks.
Operation of Machine:

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Remarks:
 We have to careful during all the process because its loop formation can
be missing by needle.
 The yarn must not be in more tension.
 The rotations of handle must be in mind.
 All process must be in actual size and must be maintain for making one
pair of socks.
 When the heel is in operation we must be carefully operate the handle
and we must be maintain the calculations of number of coarse to make
it.
Discussion
In this experiment we learn about the yarn path diagram, total number of
needles and machine parts of hand sock circular knitting machine. We learn
about the machine parts and their operation during knitting action. During
experiment, we should observed the machine settings carefully. For further
knowledge we can use manual or catalogue which is provided with the
machine. This is the simplest machine for hosiery production so we should
have gathered the idea properly about this machine.
Conclusion
We know that there are variety of product of knitting item, hosiery and
socks is one of them. Hand Sock circular knitting machine is a hand driven
manual machine for sock production. For being hand driven we should

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emphasize a focus on power driven knitting machine to ensure the higher
productivity of the knitting article. The people who are willing to invest
short amount in textile sector can make a startup with this kind of low cost
machine and ensure a good amount of profit by selling the socks item.