4b..sewing machine
TRANSCRIPT
-
7/30/2019 4b..Sewing Machine
1/22
22
33
-
7/30/2019 4b..Sewing Machine
2/22
44
ArmArm
Hand wheelHand wheel
Reverse stitch controlReverse stitch control..
Stitch length regulatorStitch length regulator
Thread spindleThread spindle
Pressure regulatorPressure regulator..
Thread retainerThread retainer..
TakeTake--up leverup lever..
Thread guidesThread guides..
Presser footPresser foot
55
Needle barNeedle bar
Needle screwNeedle screw
Presser barPresser bar
Feed dogsFeed dogs
Throat plateThroat plate
NeedleNeedle
Stitch hole (Stitch hole (needle holeneedle hole))
Center PostCenter Post
BobbinBobbin
Bobbin caseBobbin case
-
7/30/2019 4b..Sewing Machine
3/22
66
ShankShank
HeelHeel
SoleSole
ToesToes
77
Arm:Arm: -- It houses the drive shaftsIt houses the drive shafts
Hand wheelHand wheel:: -- It controls the motion ofIt controls the motion of
the machine manually or electricallythe machine manually or electrically
Reverse stitch controlReverse stitch control:: -- It changes theIt changes the
stitch direction.stitch direction.
Stitch length regulatorStitch length regulator:: -- It indicates andIt indicates and
changes the SPI (Stitches per inch) / SPMchanges the SPI (Stitches per inch) / SPM
-
7/30/2019 4b..Sewing Machine
4/22
88
Thread spindleThread spindle:: -- It holds the spool of threadIt holds the spool of thread
Pressure regulatorPressure regulator:: -- It is the control thatIt is the control thatregulates the amount of pressure on Presserregulates the amount of pressure on Presser
foot.foot.
Thread retainerThread retainer:: -- (Pre(Pre--tensionertensioner) It applies) It applies
small amount of tension to the disc so that thesmall amount of tension to the disc so that the
thread will flow uniformly in the tension discs.thread will flow uniformly in the tension discs.
99
TakeTake--up leverup lever:: -- It first loosens the thread forIt first loosens the thread for
stitch formation then removes any slack to setstitch formation then removes any slack to set
or lock the stitch.or lock the stitch.
Thread guidesThread guides:: -- (thread eyelets) they(thread eyelets) they
smooth the thread and protect it fromsmooth the thread and protect it from
abrasion.abrasion.
Presser footPresser foot::-- It holds the fabric in place forIt holds the fabric in place for
stitchingstitching
-
7/30/2019 4b..Sewing Machine
5/22
1010
Take Up LeverTake Up LeverTakeTake--up leverup lever:: -- It first loosens the thread for stitch formationIt first loosens the thread for stitch formation
then removes any slack to set or lthen removes any slack to set or lock the stitch.ock the stitch.
1111
Thread Retainer & GuidesThread Retainer & Guides
-
7/30/2019 4b..Sewing Machine
6/22
1212
Thread Spindle/StandThread Spindle/Stand
1313
Needle barNeedle bar:: -- It holds one or more needles andIt holds one or more needles and
moves the needle up and down.moves the needle up and down.
Needle screwNeedle screw:: -- (needle bar clamp) it holds the(needle bar clamp) it holds the
needle with the needle bar.needle with the needle bar.
Presser barPresser bar:: -- The bar to which presser foot isThe bar to which presser foot is
attached.attached.
Feed dogsFeed dogs ::-- (feed dog, feeder or feed) the(feed dog, feeder or feed) the
toothed mechanism beneath the presser foottoothed mechanism beneath the presser foot
that moves fabric forward and backward.that moves fabric forward and backward.
-
7/30/2019 4b..Sewing Machine
7/22
1414
Throat plateThroat plate:: -- It protects the lower partIt protects the lower part
from building excess lint.from building excess lint.
NeedleNeedle:: -- It penetrates the fabric. It takesIt penetrates the fabric. It takes
the thread to the hook or shuttle and upthe thread to the hook or shuttle and up
again to make the stitch.again to make the stitch.
Stitch hole (needle hole)Stitch hole (needle hole)::-- The hole inThe hole in
the throat plate the needle carries thethe throat plate the needle carries the
thread into the hole so that it can interlockthread into the hole so that it can interlock
with the bobbin thread.with the bobbin thread.
1515
Needle Bar & ScrewNeedle Bar & Screw
-
7/30/2019 4b..Sewing Machine
8/22
1616
Throat Plate & Needle BarThroat Plate & Needle Bar
1717
THROAT PLATETHROAT PLATE
-
7/30/2019 4b..Sewing Machine
9/22
1818
Needle Hole, Presser Foot, Feed DogNeedle Hole, Presser Foot, Feed Dog
1919
Feed DogFeed Dog
-
7/30/2019 4b..Sewing Machine
10/22
2020
Bobbin MechanismBobbin Mechanism
Center PostCenter Post:: --A part of shuttle or rotaryA part of shuttle or rotaryhook. It holds the bobbin case in positionhook. It holds the bobbin case in position
(stationary). Hence, bobbin and shuttle(stationary). Hence, bobbin and shuttle
can move independently. Bobbin rotatescan move independently. Bobbin rotates
about the center post.about the center post.
BobbinBobbin:: -- It holds the lower supply ofIt holds the lower supply of
threadthread
2121
Bobbin MechanismBobbin Mechanism
HookHook:: --A rotating device that hooks theA rotating device that hooks the
needle thread to carry it around the bobbinneedle thread to carry it around the bobbinand form the lock in the lockstitch.and form the lock in the lockstitch.
Bobbin caseBobbin case:: -- It holds the bobbinIt holds the bobbin
-
7/30/2019 4b..Sewing Machine
11/22
2222
HOOKHOOK
2323
Bobbin Case & BobbinBobbin Case & Bobbin
-
7/30/2019 4b..Sewing Machine
12/22
2424
Bobbin AssemblyBobbin Assembly
2525
PRESSER FOOTPRESSER FOOT
ShankShank:: -- It holds the presser footIt holds the presser foot
HeelHeel:: -- The back of presser foot.The back of presser foot.
-
7/30/2019 4b..Sewing Machine
13/22
2626
PRESSER FOOTPRESSER FOOT
SoleSole:: -- (shoe or slipper) it contacts with(shoe or slipper) it contacts withcloth. It helps smooth movement of fabric.cloth. It helps smooth movement of fabric.
ToesToes:: -- (Prongs) the front end that faces(Prongs) the front end that faces
oncoming cloth. On zipper foot, cordingoncoming cloth. On zipper foot, cording
foot there is only one toe.foot there is only one toe.
2727
PRESSER FOOTPRESSER FOOT
-
7/30/2019 4b..Sewing Machine
14/22
2828
BED TYPESBED TYPES
2929
Flat BedFlat Bed
-
7/30/2019 4b..Sewing Machine
15/22
3030
Post BedPost Bed
3131
Cylindrical bedCylindrical bed
-
7/30/2019 4b..Sewing Machine
16/22
3232
Feed of the armFeed of the arm
3333
Raised BedRaised Bed
-
7/30/2019 4b..Sewing Machine
17/22
3434
OverlockOverlock MachineMachine
3535
LooperLooper
-
7/30/2019 4b..Sewing Machine
18/22
3636
Different Types ofDifferent Types ofLooperLooper
3737
Button Hole MachineButton Hole Machine
-
7/30/2019 4b..Sewing Machine
19/22
3838
Button Sewing MachineButton Sewing Machine
-
7/30/2019 4b..Sewing Machine
20/22
-
7/30/2019 4b..Sewing Machine
21/22
-
7/30/2019 4b..Sewing Machine
22/22