mtm practical - sadik

7/29/2019 Mtm Practical - Sadik

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Experiment Name: Study on Introduction of Maintenance of textile machinery.

Introduction:Maintenance actions are tasks for retaining, fixing or restoring an item in a state in which

itcan perform its required function by the combination of all technical, administrative,

managerial andsupervisory actions. In other word maintenance of textile machinery is a

procedure by means of which wecan maintain active functioning in operation according to the behavior and utility of

particular machineries.

Objectives:1. To elonggate the machine life and help the machines to run trouble free.

2.To increase machine efficiency or productivity.

3. To improve the quality of products.

4. To minimize production and operating cost.

5. To help unskilled operator in their works.

Types of maintenance: There are mainly five types of maintenance of textile machinery.

These are:1. Operative maintenance.

2. Breakdown maintenance.

3. Schedule maintenance.

4. Planning maintenance.

5. Preventive maintenance.

Preventive maintenance is two types. Such as:

1. Periodic maintenance.

2. Predictive maintenance.

Operative maintenance: The task which should be carried out by operator before

starting a m/c is called Operative maintenance. For example:1. Cleaning.

2. Adjustment of thread, needle, bobbin, looper etc.

3. Starting of switch.

Breakdown maintenance: The special care of machinery which are taken during

running of machine if machine stop suddenly; is called breakdown maintenance.

Schedule maintenance: Schedule maintenance is maintained in a m/c after a certain

period. Scheduling is done after one week, two week, one month or after six months.

Scheduling of maintenance requires the concurrence of the production personnel to

release the m/c during specific time.

Planning of maintenance: If schedule wise maintenance cannot be suitable than after

talking with management m/c maintenance is carried out after planning by all. Planning

should be done in such a way that the production is not hampered any means.

Preventive maintenance: In this type of maintenance actions are periodically taken to

functional failure and to achieve the desired level of safety and reliability for an item.

These actions are performed to prevent or reduce the consequence of failures. It is further

divided into (a) Periodic maintenance and

(b) Predictive maintenance.


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(a) Periodic maintenance: It is ongoing time based maintenance which consists of

periodically inspecting, servicing, lubricating and cleaning of equipment and replacing

parts to prevent sudden failure.

(b) Predictive maintenance: This is a method in which the service life of important part

is predicted based on inspection or diagnosis, in order to use the parts to the limit of their

service life. It is condition based maintenance, manages trend values by measuring andanalyzing data about deterioration, designed to monitor conditions through an on-line

system.

Conclusion: To complete this experiment our lab teachers help us so much. By this

experiment we have known about the concept of different types of maintenance of textile

machinery.


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Experiment No: 02

Experiment Name: General study of different types of machines present in our Apparel

Lab.

Introduction:Ready- made garment is success story of textile sector. To produce these RMG different

types of m/cs have to be needed. For producing garments from fabric & to reach thesegarments to finished product different m/c is used. Our Apparel lab has sufficient

machineries which are important.

Objectives:

ypes of m/c

Different machines in our lab:

Machine No. 1:Machine specification:

-1190M

SPM: 5000-5500

Machine No. 2:Machine Specification:

n

-391N

-5500


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MachineName: Industrial Kansai special sewing m/c

- 1404 PSF

-4500

-16

bound seam


MachineName: One needle heavy duty industrial lock stitch sewing m/c

no: DDL 5530 NBrand: Juki

Origin: Japan

S.P.M: 1500-5500

T.P.I: 2.5

no: 1

size: 9, 11, 14,16,18,21

name: DB x 1

Function: all kind of plain sewing

class: 300

class: super imposed / bound seamMachine No. 5 : Same as M/C no. 4

Machine No. 6 :Machine Specification:

MachineName : Industrial Bartack m/c

Brand : Juki

-1850

-3600

e : 1

Machine No. 7 : Same as M/C no . 4


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MachineName : Two needle industrial lockstitch sewing m/c

-3188

-4500

Machine No. 9 : Same as M/C no. 8

Machine No. 10 :

Machine Specification:MachineName : Industrial snap or shank button attaching m/c

-45

Machine No. 11 :

Machine Specification:

MachineName : 5 thread overlock m/c or edge neatening sewing m/c

o : 2

-21

Machine No. 12 :same as M/C no 11


MachineName : Industrial overlock m/c

chain stitch

-3614

-8500


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Machine No. 14 :same as m/c no. 13. only different in needle no. Here no. of needle : 1

Machine No. 15 :same as m/c no. 14Machine No. 16 :


MachineName : Industrial single needle chain stitch sewing m/c

-111

intralooping)

-6500

Machine No. 17 :same as m/c no. 16


Machine No. 19 :Machine Specification :

MachineName : Industrial Feed of the arm sewing m/c

-1261 M

-5500

: Lappet/superimposed

Machine No. 20 :same as m/c no. 19. Here only difference inneedle 7 looper no. needle

no-2, looper no-

2, used for light fabric.model- MS-1190.

Machine No. 21 :


MachineName : Industrial Flat lock m/c

-810 B


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-8000

: 19,22,32

: UY x 128GAS


MachineName : Industrial flat lock m/c

-7700

: cylinder bed


Machine No. 24 :


MachineName : Industrial Button holing sewing m/c

-1850


MachineName : Industrial button attaching m/c

-377

-1500

-5


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MachineName : industrial Blind stitch sewing m/c

-3938

-3000

TPI : 4

Machine No. 27 :


MachineName : Industrial Blind stitch sewing m/c

-3938

-3000

LWx6T


MachineName : Industrial double needle chain stitch sewing m/c

-481-5

-6500

lass : superimposed


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MachineName : Industrial rib cutter m/c

SM-601

Machine No. 30 :same as m/c no. 4 & 5

Machine No. 31,32,3,34,35,36,37,38 :same as m/c no. 4 & 5


MachineName : Pin point shaddle stitch m/c


MachineName : Pecoating m/c

pecial

- 4W

Machine No. 41 : Industrial band knife cutting m/c

Machine No. 42: Shirt folding table

Machine No. 43: Ironing table


MachineName : Industrial Embroidary m/c

-YN-4


MachineName : Fusing m/c


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-400C

Machine No. 46:

Machine Specification:MachineName : Garments washing m/c

ction : To carry out different types of wash of garments

Machine No. 47:


MachineName : Garments dyeing m/c


MachineName : Air compressor

-10 kgf/cm2

-100 litre

-55 mmMachine NO. 49 :Machine Specification:

Machine name : Hydroextractor


Experiment No: 03


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Experiment Name: Study on operative maintenance of sewing machine.

Introduction:Maintenance actions are tasks for retaining, fixing or restoring an item in a

state in which it

can perform its required function by the combination of all technical, administrative,

managerial and

supervisory actions. In other word maintenance of textile machinery is a procedure bymeans of which

we can maintain active functioning in operation according to the behavior and utility of

particular

machineries. There are different types of maintenance. Here, we have learnt about

operative

maintenance.

Objectives:1. To know what is operative maintenance

2. To know how to carry out the procedure of operative maintenance

3. To know about different types of maintenance tools & equipment4. To learn the application of operative maintenance

Operative maintenance:The tasks which are carried out by an operator before starting a m/c is called operative

maintenance. It

includes the task cleaning, adjustment of thread, needle, bobbin, looper, oiling position,

stitch adjust,

threading etc. The man who completes these maintenance tasks is known as maintenance

operator.

Operations:

M/c threading: Before starting m/c, threading must be done

Needle adjustment: Due to wrong adjustment of needle, quality of product will

degrade. So,

needle should be adjusted properly

Stitch length adjustment: Stitch density should be used to control the no. of stitches

per inch &

stitch length before the starting the m/c, stitches per inch is determined by rotating the

knob &

fixing it at the desired position

Thread tension adjustment: proper stitching depends on appropriate tension on

sewing thread.

So, tensioners are to be adjusted properly

Placement of fabric under pressure foot: The fabric should be placed properly under

the

pressure foot. Otherwise defective garments would be produced


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Folder attachment: In which m/cs have folder, should be properly adjusted. If folder

is not set

properly the quality of product will be poor

Advantages of operative maintenance:uble of m/c

Precautions:

he component should not be too tight or too loose

Conclusion

By this experiment we have known about the operative maintenance; its task & how tocarry out. Our

lab teacher helped us to complete this experiment. We think that this experiment will be

helpful in our professional life.


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Experiment name: Study on the maintenance procedure of industrial lock stitch sewing

m/c.

Introduction: The machine which produces stitches by interlacing of threads is called

lock stitch m/c. This m/c produces durable stitches and is very popular in garment

industries. To run this m/c defect free different maintenances are carried out.

Objectives:

ine.

Machine specification:

Model No: DDL-5530N

Group: Lock Stitch.

Brand: Juki

SPM: 1500-5500Needle Size: 9,11,14,16,18,20,21

T.P.I : 2.5

Needle No: 1

Bobbin No: 1

Seam class: super imposed/ bound/ lapped.

Stitch class: 300

Features:1. Stitches are produced by interlocking.

2. Bobbin and bobbin case are present.

3. Threads are supplied from cone4. It has only one needle.

5. It has different type of mechanism.

Maintenance: Maintenance can be of different types. But following types are important

in this aspect:

a. Routine maintenance: Lubrication and regular inspection are the constituents of

routine maintenance. Lubrication ensures long life and safe working of all the

equipment. Inspection tries to detect faults in equipment. So that repairs and

replacements may be undertaken at the right time.

b. Scheduled maintenance: This type of maintenance provides for inspection,

overhaul lubrication and servicing of machine, clearling of all components is

normally done in this manner. It involves opening of the machine into its smallest

components and carry out lubrication.

Setting: The setting of the lock stitch machine is of immense importance. Following

setting points needs to be ensured before running the machine.

a. Stitch density controller: It controls the no. of stitches per inch. Before starting

the machine, stitches per inch is determined by rotating the knot and fixing it at

the desired position.


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b. Motor: Motor rpm depicts the spend of the machine. The rpm is controlled by

tightening and loosing the belt over machine and motor pulley.

c. Needle:Needle undergoes accurate setting to ensure proper sewing. Needle is

attached by means of screw which needs to be tightened enough to produce

easy sewing.

d. Pressure foot: The type of pressure foot to be used and its proper setting isimportant, which is ensured by proper attachment with the motor through

machine pulley.

e. Feed dog: It is often found that due to random working the feed dog is subjected

to be loose which may cause accident also. Thus the feed dog must be set

properly with the screw.

Replacement: The replacement is revealed when the retention of equipment is no more

remains an economical preposition. A replacement is affected when the equipment is

subjected to complete breakage which cannot be used even after repairs or the

components has become so obsolete that affects production or it has crossed its expiry

date.Precaution:

necessary.

Conclusion: The experiment has provided us wide idea regarding the repair,

maintenance, setting and replacement of different components of lock stitch machine. It

has also oriented us with different m/c tools and their use which are required for job.


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Experiment name: Study on the maintenance procedure of industrial chain stitch sewing

machine.

Introduction:Machines are subjected to deterioration due to their use and expose to environmental

condition.

Process of deterioration if unchecked culminate in rendering these facilities unserviceableand brings

them to standstill. Different maintenances are carried out to prevent this deterioration.

Repair,

maintenance, accurate setting and replacement of components assure the good

performance of chain

stitch sewing machine.

Objects :

sewing

m/c.ife .

Features of chain stitch m/c :

c thread trimmer

-4.5 mm

-100 (single thread)

-thread chain stitch m/c

-400 (multi thread)

Specification:-111

-6500


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Maintenance procedure:a. Routine maintenance: lubrication and regular inspection are the constituent of routine

maintenance. Lubrication ensures long life and safe working of all the equipments.

Inspection

tries to detect faults in equipment so that repairs and replacement may be undertaken at

theright time.

b. Schedule maintenance : this type of maintenance provides for inspection, overhaul

lubrication and servicing of the machine at pre determined dates. Overhauling of

machine,

cleaning of all components is normally done in this manner. It involves opening of the

machine

into its smallest components and carry out lubrication.

Setting :The setting of the over edge stitch machine is of immense importance. Following setting

points needs tobe ensured before running the machine.

a. Needle :Needle undergoes accurate setting to ensure proper sewing. Needle is

attached by

means of a screw which needs to be tightened enough to produce easy sewing. Again the

needle size is also important from fabric point of view. In this m/c, one or two needle

may be

used.

b. Looper : Looper is one of the important part of the chain stitch m/c. so, for proper

sewing

looper should be adjusted accurately. The distance of the needle and looper should beaccurate.

Looper should not be too tight or too loose . looper size also important.

c. Stitch density controler : It controls the no. of stitch per inch. Before starting the

machine,

stitches per inch is determined by rotating the knob and fixing it at the desired position.

d. Pressure foot : The type of pressure foot to be used and its proper setting is important,

which

is ensured by proper attachment, with the motor through machine pulley.

e. Tensioner : Proper stitching depends on appropriate tension on sewing thread. The

tensioner

is defective and if it is not properly adjusted, then the stitch may be tight or loose or the

sewing

thread may be break down, so tensioners are to be adjusted properly.

f. Motor : Motor rpm depicts the speed of the machine. The rpm is controlled by

tightening or

loosing the belt over machine and motor pulley.


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g. Feed dog : It is often found that due to random working of the feed dog is subjected to

be

loose which may cause accident also. Thus the feed dog must be set properly with the

screw.

Precaution :

1. All repair and maintenance work should be carried out by switching off the machine.2. Right tools should be used in right place.

3. Skilled personnel should be involved for specialized job.

4. Careful handling of all the components is necessary.

5. The components should not be too tight or too loose.

Conclusion :This is very important machine for sewing both woven and knitted fabrics. It is used for

sewing different

type of garments. Our lab teacher helps us so much to complete this experiment. We are

so much

thankful to him.

mtm practical - sadik

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