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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

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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

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ShankShank

HeelHeel

SoleSole

ToesToes

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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

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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.

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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

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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.

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Thread Retainer & GuidesThread Retainer & Guides

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Thread Spindle/StandThread Spindle/Stand

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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.

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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.

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Needle Bar & ScrewNeedle Bar & Screw

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Throat Plate & Needle BarThroat Plate & Needle Bar

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THROAT PLATETHROAT PLATE

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Needle Hole, Presser Foot, Feed DogNeedle Hole, Presser Foot, Feed Dog

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Feed DogFeed Dog

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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

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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

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HOOKHOOK

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Bobbin Case & BobbinBobbin Case & Bobbin

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Bobbin AssemblyBobbin Assembly

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PRESSER FOOTPRESSER FOOT

ShankShank:: -- It holds the presser footIt holds the presser foot

HeelHeel:: -- The back of presser foot.The back of presser foot.

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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.

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PRESSER FOOTPRESSER FOOT

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BED TYPESBED TYPES

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Flat BedFlat Bed

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Post BedPost Bed

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Cylindrical bedCylindrical bed

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Feed of the armFeed of the arm

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Raised BedRaised Bed

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OverlockOverlock MachineMachine

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LooperLooper

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Different Types ofDifferent Types ofLooperLooper

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Button Hole MachineButton Hole Machine

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Button Sewing MachineButton Sewing Machine

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