Fly frame is used to convert the draw frame sliver into
a thin material.
This material contain mild amount of twist.
Drafting system stretches the draw frame sliver and
make it thin.
The chief functi0n of fly frame is to attenuation of
Insertion of protective twist in order to hold the
fine of sliver, winding of roving into a package.
Q: Why the draw sliver is not
direct used in ring machine ?
There are two main reasons:
The first reason is related to the required draft. The
draw sliver is to thick, untwist strand that tends to
be hairy and to create fly. The fine twisted roving is
better to this purpose.
The second reason is that draw frame can represent
the worst conceivable mode of transport and
presentation of feed material to the ring spinning
creel is used to guide the sliver. creel
portion is present above the can.
Creel help the sliver on their way to the
drafting arrangements without any
Guide roller are used to guide the
These are also used to guide the sliver.
condenser are used to
condensing/pressing the sliver.
The purpose of condenser is to bring
the fiber strand back together again.
pressure arm is use to give pressure onto
BACK PAIR OF DRAFTING
The drafting start from these roller.
The top back roller are negatively driven.
The bottom back roller are positively
driven.The dia: of back bottom
roller is 28mm
The dia: of back top roller is 28mm.
MIDDLE PAIR OF
The main drafting occur in this region.
The speed is greater than back pair of
The diameter of these rollers are 28mm
FRONT PAIR OF
The further drafting occur in this region.
The speed of these pair of roller is
greater than the middle pair of roller.
The dia of these rollers are 28mm.
cradle are used to give proper tension to the upper
and bottom rollers. for proper guidance of
The main function of distance clip are to
maintain sufficient distance between top
and bottom aprons to attenuate the
The apron co-operate each other to guide and
transport the fiber during drafting.
The top roller must be pressed with
relatively high force against the lower
roller to ensure guidance of the fibers.
Pressure in the range 100 to
250N(300N)Per roller(shaft)and they
are dependent upon raw material and
cots are made of rubber or synthetic
material and are mounted on top rollers.
TOP CLOTH ROLLER:
It is used to clean the rubber cot rollers.
The flyer insert twist; each flyer rotation create one
turn in the roving.
In the final analysis therefore, since the flyer
rotation rate are held constant, twist per unit
length of roving depend upon the delivery rate.
The arm has to guide the roving from the exit of
the flyer leg to the package.
The spindle is steel rod of circular cross-
section with its dia reduce at the top.
The slot in which the flyer pin is mounted.
The dia of spindle also reduce
at the bottom and takes shape of
Angle of tapered is 80-90
holder is used to fix the roving bobbins.
Roving rail moves up and down to wind the roving
on the bobbin.
IN TOYADA SIMPLEX
MACHINE FL-16 IS FL-
Model of 1985
No: of spindles are120
Cradle radius 31.5*40mm
Size of feeding can
Processing fiber 22-40mm
Total draft 332
Model of 1996
No: of spindle are 144
Size of feeding can
Fiber type combed or carded
Processing fiber up to 38
Total draft 348mm
MAIN DIFFERENCE IN
FL-16 AND FL-1OO IS
The fl-16 is driven through cone
And the modern fl-100 is driven
through servo drive.
CONE DRIVE SYSTEM:
The tensile force required to induce movement of
belt is exerted by weight.
If the ratchet wheel is fewer teeth inserted, then
the belt is shifting in large steps i.e it progresses
more rapidly or vice versa.
Shifting of belt is under the control of the ratchet
wheel .after each stroke ratchet wheel is permitted
to rotate by a half tooth.
The variation in bobbin speed originates from the
cone drum. When the builder motion shifts the
belt, the rotation rate of lower cone is changed.
DIAGRAM OF CONE DRIVEN
SERVO MOTOR SYSTEM:
. The independent three-motor drive established in
the FL100 has evolved and developed into a four-
motor drive, and the latest in servo technology and
dramatically improved CPU performance provides
even greater accuracy and control.
The FL200 demonstrates outstanding
performance in every aspect of productivity and
roving quality as a result of synergy with its high-
performance tension controller.