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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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Machine No. 3:Machine Specification:
MachineName: Industrial Kansai special sewing m/c
- 1404 PSF
-4500
-16
bound seam
Machine No. 4:Machine Specification:
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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Machine No. 8 :Machine Specification:
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
Machine No. 13 :Machine Specification:
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 :
Machine Specification:
MachineName : Industrial single needle chain stitch sewing m/c
-111
intralooping)
-6500
Machine No. 17 :same as m/c no. 16
Machine No. 18 :same as m/c no. 3
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 :
Machine Specification:
MachineName : Industrial Flat lock m/c
-810 B
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-8000
: 19,22,32
: UY x 128GAS
Machine No. 22 :Machine Specification:
MachineName : Industrial flat lock m/c
-7700
: cylinder bed
Machine No. 23 :same as m/c no. 21
Machine No. 24 :
Machine Specification:
MachineName : Industrial Button holing sewing m/c
-1850
Machine No. 25 :Machine Specification:
MachineName : Industrial button attaching m/c
-377
-1500
-5
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Machine No. 26 :Machine Specification:
MachineName : industrial Blind stitch sewing m/c
-3938
-3000
TPI : 4
Machine No. 27 :
Machine Specification:
MachineName : Industrial Blind stitch sewing m/c
-3938
-3000
LWx6T
Machine No. 28 :Machine Specification:
MachineName : Industrial double needle chain stitch sewing m/c
-481-5
-6500
lass : superimposed
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Machine No. 29 :Machine Specification:
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
Machine No. 39 :Machine Specification:
MachineName : Pin point shaddle stitch m/c
Machine No. 40 :Machine Specification:
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
Machine No. 44:Machine Specification:
MachineName : Industrial Embroidary m/c
-YN-4
Machine No. 45 :Machine Specification:
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:
Machine Specification:
MachineName : Garments dyeing m/c
Machine No. 48:Machine Specification:
MachineName : Air compressor
-10 kgf/cm2
-100 litre
-55 mmMachine NO. 49 :Machine Specification:
Machine name : Hydroextractor
Machine No. 50:Machine Specification:
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.