Yaa Sewing Motorcar Applied Scientific Discipline As Well As Attachment

Sewing Machine Engineering together with Attachment
Shariful Islam Iman
BGMEA University of Fashion & Technology
Email: iman1994buft@yahoo.com

Sewing Machine
A sewing machine is a device that stitches materials together amongst thread. They arrive at from foot-operated or electrical domestic machines to large, industrial machines. Sewing machines are mainly used to brand wearable faster together with easier than is possible yesteryear hand..

Sewing machine

Motor:
There are half dozen types of motor –

Clutch motor
Electro clutch motor
Induction clutch
Servo motor
Dc motor
Pulse motor /step motor ( without dc motor all motor inwards our Buft lab )

Clutch motor for sewing machine motor :

Clutch motor for sewing machine motor

Specifications:

Output Power: 100(1/8) / 250(1/3) HP
Voltage: 220 / 240V
Frequency: l / 60Hz
Speed: 2850 / 3450rpm.
Amp : 2.1 /1.8

Advantage Of Clutch Motor:

Economy
Locally Available
Easy To Repair

Disadvantage Of Clutch Motor:

NOISE
VIBRATION
REQURED ROUTINE MAINTANCE
GETTING HOT
LIFE TIME LESS
POWER CONSUMPTION IS MORE
EASY TO BURN
RESPONSE IS LOW

Electro clutch motor for sewing m/c:

Electro clutch motor for sewing m/c

Advantage of electro clutch motor:

Economy
Trimming, Needle Position, Foot Lift, Back Stitch, Wiper, Speed etc tin Control.
Safety Switch.

Disadvantage of electro clutch motor:

Noise
Vibration
Getting Hot
Power Consumption Is More
Response Is Slow ( Less Than Servo Motor )

Induction motor

Induction Motor

Advantage Of Induction Motor:

Economy
Locally Available
Response Is Faster Than Clutch Motor

Disadvantage of electro clutch motor:

Noise
Vibration
Getting hot
Power consumption is to a greater extent than
Life fourth dimension is less
Use for alone cycle sewing machine

Servo Motor

Servo Motor

Advantage Of Servo Motor:

NOISE FREE
VIBRATION FREE
LESS POWER CONSUMPTION
TRIMMING ,NEEDLE POSITION ,FOOT LIFT ,BACK STITCH ,WIPER ,SPEED CAN CONTROL
LIFE TIME IS MORE
SAFETY SWITCH
QUICK RESPONSE
MAINTENANCE FREE

Disadvantage of Servo Motor:

Costly
Locally non available

Advantage Of Direct Driven Motor:

Quick Response
Better Needle Penetration
Belt less System
Less Power Consumption
Low Vibration
Low Noise
Long Life Time

Disadvantage of Servo motor:

Costly

Belt Tension Adjustment And Machine Rpm Check

Belt Tension Adjustment And Machine Rpm Check

Generally the next sewing machines are required for clothe manufacture :

Single Needle Lock Stitch Machine (L)
Two Needle Lock Stitch Machine With Edge Trimmer (L)
Single Needle Lock Stich Machine With Edge Trimmer (L)
Singe Needle Chain Stitch (C)
Two Needle Chain Stitch (C)
Multi Needle Chain Stitch (C)
Over Lock Stitch Machine (C)
Feed Of The Arm Machine (C)
Bottom Stitch Machine (L/C)
Bar Tack Machine (L)
Button Hole Machine (L)
Eyelet Button Hole Machine (C)
Cover Stitch Machine (C)
Front Placket Joining Machine( C)
Waist Band Joining Machine (C )
Blind Hemming Machine (C)
Belt Loop Making Machine (C )
Belt Loop Joining Machine (L)
Welt Pocket Machine (L)
Trouser Bottom Hemming Machine (L)
HAND STITCH MACHINE (201)
CYCLE SEWING MACHINE (L)
PICKOTING MACHINE (C)
PINPOINT SADDLE STITCH MACHINE (C)
Zigzag machine (L)

REASON OF NEEDLE BREAKAGEG

Needle Selection Is Wrong
Low Quality Needle
Size Of Needle Is Wrong
Wrong Threading
Unskilled Sewing Operator
Machine Adjustment Is Wrong
Low Quality Machine Parts
Low Quality Sewing Thread
Needle Gurd Adjustment Is Wrong
Unsuitable Machine Version

REASON OF THREAD BREAKAGEG

Improper Threading
Low Quality Sewing Threading
Low Quality Needle
Wrong Selection Of Thread Count
Thread Tension Too Tight
Machine Adjustment Is Wrong
Low Quality Machine Parts
Machine Speed Too Fast
Wrong Selection Of Needle Size
Wrong Selection Of Gauge Parts
Thread Stand Position Is Wrong
Thread Cone Rewinding Improperly Machine Speed Thread Path Device Is Not Available

REASON OF SKIP STITCH

Needle Bent
Incorrect Needle
The Clearance Between Hook And Need Has Far
Needle Thread Loop Doesn’t Open Out
The Needle Plate Is Bent Downward
The Needle The Needle Clam Is Bent
Defective Machine Parts
The Thread Take Up Spring Movement Is Too Big

The next tools are required for maintenance sewing machine :

Metal hammer (1/2 lb)-1pc
Plastic hammer (1/2 Ib)-1pc
Bench drill m/c -1unit
Drill fleck 29pcs-1 unit of measurement
Puller 6``-1pc
Adjustable wrench 8`` 1pc
Adjustable wrench 6`` 1pc
Allen fundamental (1-10mm)-1set
Screw driver apartment 10 `` 1pc
Screw driver apartment 8`` 1pc
Screw driver apartment 6 `` 1pc
Screw driver star 8``1pc
Screw driver 6 `` 1pc
Plier apartment eight `` 1pc
Plier olfactory organ 6`` 1pc
Plier Cutting 6 `` 1pc
Spanner ( v To 22 Mm) 1 Set
Air Blower 1-Pc
Multi Meter -1 Pc
Iron -1pc
Solder Stand -1pc
Solder Sucker -1pc
Electric Tester –Pc
Scissor 6`` -1pc
Steel Scale 1 Pc
Vernier Scale -1pc
Safety Glass -2 Pair
Hand Gloves -2 Pair
Vice -1 Pc
Grinding Machine -1 Pc
First Aid -1 Box

DRY HEAD SEWING MACHINE
The Machine Equipped With Heat Heat Resistance And Worn Out Resistance Parts Which Is Run By Special Grease With Instead Of M/C Oil

BENEFIT OF DRY HEAD MACHINE