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Now You Know Sewing Machine Engineering and Attachment

Written By Sunday 3 February 2019 Edit
Sewing Machine Engineering and 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 with thread. They range from foot-operated or electric domestic machines to large, industrial machines. Sewing machines are mainly used to make clothing faster and easier than is possible by hand..
Sewing machine
Motor:
There are six types of motor –
  1. Clutch motor
  2. Electro clutch motor
  3. Induction clutch
  4. Servo motor
  5. Dc motor
  6. Pulse motor /step motor ( without dc motor all motor in our Buft lab )
Clutch motor for sewing machine motor :
Clutch motor for sewing machine motor
Specifications:
  1. Output Power: 100(1/8) / 250(1/3) HP
  2. Voltage: 220 / 240V
  3. Frequency: 50 / 60Hz
  4. Speed: 2850 / 3450rpm.
  5. Amp : 2.1 /1.8
Advantage Of Clutch Motor:
  1. Economy
  2. Locally Available
  3. Easy To Repair
Disadvantage Of Clutch Motor:
  1. NOISE
  2. VIBRATION
  3. REQURED ROUTINE MAINTANCE
  4. GETTING HOT
  5. LIFE TIME LESS
  6. POWER CONSUMPTION IS MORE
  7. EASY TO BURN
  8. RESPONSE IS LOW
Electro clutch motor for sewing m/c:
Electro clutch motor for sewing m/c
Advantage of electro clutch motor:
  1. Economy
  2. Trimming, Needle Position, Foot Lift, Back Stitch, Wiper, Speed etc can Control.
  3. Safety Switch.
Disadvantage of electro clutch motor:
  1. Noise
  2. Vibration
  3. Getting Hot
  4. Power Consumption Is More
  5. Response Is Slow ( Less Than Servo Motor )
Induction motor
Induction Motor
Advantage Of Induction Motor:
  1. Economy
  2. Locally Available
  3. Response Is Faster Than Clutch Motor
Disadvantage of electro clutch motor:
  1. Noise
  2. Vibration
  3. Getting hot
  4. Power consumption is more
  5. Life time is less
  6. Use for only cycle sewing machine
Servo Motor
Servo Motor
Advantage Of Servo Motor:
  1. NOISE FREE
  2. VIBRATION FREE
  3. LESS POWER CONSUMPTION
  4. TRIMMING ,NEEDLE POSITION ,FOOT LIFT ,BACK STITCH ,WIPER ,SPEED CAN CONTROL
  5. LIFE TIME IS MORE
  6. SAFETY SWITCH
  7. QUICK RESPONSE
  8. MAINTENANCE FREE
Disadvantage of Servo Motor:
  1. Costly
  2. Locally not available
Advantage Of Direct Driven Motor:
  1. Quick Response
  2. Better Needle Penetration
  3. Belt less System
  4. Less Power Consumption
  5. Low Vibration
  6. Low Noise
  7. Long Life Time
Disadvantage of Servo motor:
  1. Costly
Belt Tension Adjustment And Machine Rpm Check
Belt Tension Adjustment And Machine Rpm Check
Generally the following sewing machines are required for apparel industry :

  • 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 following 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 bit 29pcs-1 unit
  • Puller 6``-1pc
  • Adjustable wrench 8`` 1pc
  • Adjustable wrench 6`` 1pc
  • Allen key (1-10mm)-1set
  • Screw driver flat 10 `` 1pc
  • Screw driver flat 8`` 1pc
  • Screw driver flat 6 `` 1pc
  • Screw driver star 8``1pc
  • Screw driver 6 `` 1pc
  • Plier flat 8 `` 1pc
  • Plier nose 6`` 1pc
  • Plier Cutting 6 `` 1pc
  • Spanner ( 5 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
  • Protect Sewing Product From Oil Stain
  • Safety For Human Skin.
  • Save Oil Cost
  • Save The Time To Change Oil
  • No Need Find The Place For Disposal Oil
  • Less Maintain
  • Pollution Free
  • No Cost For Stain Remover
  • Cfc Free Protect Global Warming

Sumber http://textilelearner.blogspot.com

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