Md.

Azmir Latif
MSc. in Textile Engineer
An air-jet loom is a shuttleless modern
loom that uses a jet of air to propel the
weft yarn through the shed. It is one of
two types of fluid-jet looms, the other
being a water-jet loom, which was
developed previously.
 Machine Type – Plus
 Machine Sub Type- OMNI Plus 800
 Maximum machine speed- 850
 Leno Type: e- Leno
 AIC
 PFT
 Sand roller Circumference – 534
mm
 Sumo motor  Drop wire and Dropper bar.
 Pre-winder( weft Feeder)  Leno selvedge attachment
 Cam with cam box. (e- Leno)
 Lever and Puller.  Main nozzle (Fixed &
Movable)
 Reed.
 Relay nozzle
 Easing arm
 Temple
 Back rest
 ELSY(Electric Leno Selvedge
 Take up roller System)
 Cloth roller  Batcher
 Catch Cord  Pressure control regulator
 Weft cutter  PFT
 Waste cutter  Balloon Breaker
 Filling detector  Waste winder
 Disk type tensioner  Bobbin break sensor
 Electrical boards
 MCB(Master control Board
)
 AIB (Air Insulation Board )
 TRIAX-2 Board

 WEB X
 DDMP (Direct Drive
Microprocessor )
 LDEC (Loom drive
Electronic Controller )
Primary motions Tertiary Motion
 Shedding  Auto Warp stop Motion
 Auto Weft stop Motion
 Picking
 Batcher motion
 Beat Up
 Brake motion
Secondary motions
 Let off
 Take up
Possible Shedding Shedding Devices
mechanisms in Picanol
 Heald Frame &
Omni+ 800
Heald Wire
 Cam Shedding
 Shedding Cam
 Dobby Shedding
 Repeat gear
 Jacquard
 Bevel gear
 ELSY (for selvedge)
 Jack Lever
Shedding
Parameters  22° to 34°
 Shed Angle  72-87 mm
 Harness Frame  1-6
Height  -7 to +5
 Back Rest Depth
 -8 to +19
 Drop Wire Bar
Height
 Back Rest Height
 Mechanism of shedding
1. Sumo motor 5. Jack Lever

2. Bevel gear 6. Long Lever

3. Repeat gear 7. Connecting Rod

4. Cam 8. Harness Frame

*The whole shedding Mechanism is controlled by MCB board.

2/1 3/1 4/1

1/1 2/2 3/2

Weft Insertion Passage:
Creel
Fixed Main Nozzle
Weft tensioner
Moveable Main Nozzle
Pre-winder
Relay Nozzles
Balloon Breaker
Filling Detectors
(FD1,FD2)
PFT
The pre-winder contains the
following components:
 The motor and control unit
 The drum with 7 independently
adjustable fingers
 The magnetic winding blocking unit
for controlling the filling length
 The yarn-supply sensor
 The positioning sensor
 The winding sensor
 The bobbin break sensor
FIXED NOZZLE
MOVEABLE NOZZLE
Relay Nozzles
 Total No of relay
Total no of relay
nozzles 27 valve(2)
 Left Relay valve
 Divided into 2
groups  Right Relay valve

 Left ( Contain 14
nozzles)
 Right ( Contain
rest of the
nozzles)
Air Pressure:
 Main line pressure
 7 to 9 Bar Required
 Main valve pressure
 Up to 6 Bar
 Auxiliary valve pressure
 5 to 6 Bar (Fixed)
 Left relay valve pressure
 Up to 5.5 Bar (Depends on Weft yarn Count & M/C RPM)
 Right Relay valve pressure
 Up to 0.5 Bar more than left relay valve pressure
 Compressing
Equipments:
 Compressor &
Filter
 Receiver tank
 Air dryer
 Main line filter
 Sub-micron filter
 Micro mist filter
 Reservoir
Compressing Equipments: Functions:
 Compressor & Filter  To collect raw air,
separate large
particles & compress
the air.
 Receiver Tank
 Store compressed air
for preventing
pressure pulsation,
separate moisture,
 Air dryer grease & other
impurities
 A refrigerating air
dryer is used to
remove moisture
Compressing Equipments: Functions:
 Main line filter  Removes 3-5 micron
size foreign
 Sub- micron filter particles.
 Removes 0.3-1
micron size
 Micro mist filter substances such as
tar & Carbon.
 Reservoir  Remove 0.01 micron
size particles, e.g.
grease
 To reserve the
filtered air
 Cam beat up  Profile Reed is
used
VARIOUS TYPES OF REED COUNT:

 590 DM
 652 DM
 739 DM
 985 DM
 869 DM
 787 DM
 1190 DM
 1085 DM
 931 DM

DM: DENTS PER METER

 Let off is done electrically.
 An electric motor is used to
perform this action.
 Let off motion is very important to
maintain accurate warp tension
 Speed of let off motor gradually
increases with the decrease of
beam dia.
 Suggested value of tension for different warp
count
Warp count ( Ne) Warp tension ( kN)
(for 4464 ends)
6 2.40
7 2.30
8 2.20
9 2.10
10 2.10
12 2.00
14 1.90
16 1.80
20 1.65
30 1.65
Calculation warp of tension in case of
multi count warp.
Example: (7oe+9oe+12oe) 4:5:3
Warp tension to be set:

(2.30x4)/12+(2.10x5)/12+(2.00x3)/12
=2.15 KN
Connecting a warp beam with ELO
 Take up is done
electronically
 Take up is synchronized
with the let off motion
with the help of a servo
motor
 Take up = Late off+
crimp %
 Servo motor drives the
emery roller Fig: Emery roller driven by servo
motor
Warp Stop motion
 It is constituted with
drop wire and
electrode.
 When drop wire fall
(due to breakage of
warp) on the contact
bar a electronic
circuit and send a
signal to stop the
machine
Weft stop motion
 Filling yarn is detected
by a filling detector.
 FD is constructed with a
light emitting diode and
photo electric sensor .
 The filling yarn interrupt
the continuity of light
and photo electric sensor
convert it into a
electronic signal.
Other stoppage:
 Bobbin breakage
 Leno breakage
 Catch cord breakage
 Batcher stop
 Machine brake
Motors used in Picanol
Omni+ 800 Air jet Loom:
 Sumo Motor
 Hydraulic Motor
 Cutter Motor
 ELCA Motor
 ELSY Motor
 PFT Motor
 ETU Motor
 ELO Motor
 E-leno Motor
 Pre-winder Motor
 According to the  Maintenance Plan:
need and urgency,  Daily Maintenance
the maintenance  Weekly Maintenance
plan is divided
 General Periodic
according to a
Maintenance (3 to 6
certain period on
months)
the time scale.
 Preventive
maintenance in the
long term (6 to 12
months)
Daily Maintenance:  Greasing points:
 Oiling (Harness  Sley -2 points
guides)  Long lever-2 points
 Greasing (16 points  Let-off gear-1 points
for 3/1 twill, 15  Tension roller-4
points for 2/1 twill) points
 Free roller-2 points
 Jack lever 4 points
for 3/1 twill, 3
points for 2/1 twill.
 Easing connector
No. Lubricant Brand Type

01. Grease Mobile Gear 600 XP EP-600

02 Oil (for Mobile Gear 600 XP ISO- 150

Harness)
03 Oil 9for Cam Mobile Gear 600 XP ISO- 320
box)
 Maintenance
Types of lubrication:  Splash Lubrication:
 Splash Lubrication The parts requiring
continuous lubrication
have been placed inside
 Circulating housings. These
Lubrication housings are partially
filled with oil. As a
result of the movement
 Hand Lubrication of certain parts, this oil
is splashed onto other
parts. This is referred
to as splash lubrication.
 Circulating  Hand Lubrication:
Lubrication: The term "hand
Components that need lubrication" refers
to be lubricated to the components
continuously and for
which the splash that must be
lubrication is not lubricated manually
sufficient, are at specific
lubricated by means of lubrication
a circulating lubrication intervals.
system (oil circuit
supplied from the oil
tank).
Hand Lubrication Points
 The clamp and clamp  The ELSY-device For the
support of the tucking-in lubrication of the U-
devices. shaped guides.
 The clamp and clamp  The tucking-in devices.
support of the tucking-in  The sley bearings.
devices.
 The rotary selvedge
 The BLF back rest with device
single roll without easing
motion.  The bobbin holders of the
rotary selvedge device.
 The BLF back rest with 2
rolls with easing motion  The harness guides.
 The sley bearings (only in  Transmission mechanism
case of important dust harness connection.
production).
Hand Lubrication points:
 Transmission  The shaft of the
mechanism of slipping clutch of
harness connection. the cloth roll.
 The warp beam  The cloth roll drive
gear. & connection at the
 The rod guide. LH and RH machine
 The bearing of the
side.
tucking-in device.  The shaft of the
 The engaging
drive pinion of the
mechanism of the sand roller.
warp beam.
 It is difficult to predict machine operating
temperatures, as these depend on machine running
times, machine efficiency, ambient temperature and
load on the machine (fabric, number of frames,
etc.).
Recommended Machine Temperatures:
 The normal machine oil temperature should be less
than 55°C;
 The Dobby temperature should be less than 65°C;
 The cam motion temperature should be less than
60°C;
 And the let off temperature should be less than
50°C.
THANK YOU