IRO IWF 1131-C User manual

IWF 1131-C
IWF 1131-plus
Operating Instructions
Ref. No. 31-8931-0201-04/0103
IRO AB
Box 54
SE-523 22 Ulricehamn
Sweden
Tel (Int+46) 321 29700
Fax (Int+46) 321 29800
www.iroab.com
[email protected]
GB
English
31-8931-0201-04/0103-GB 01-01-22 12.40 Sidan 1

IWF 1131 1
Contents
Contents....................................................................................................................................... 1
Main parts ................................................................................................................................... 2
System orientation ...................................................................................................................... 3
Settings ....................................................................................................................................... 4
N/R rotation - Yarn separation ..................................................................................................... 5
Balloon control ............................................................................................................................ 6
Threading ..................................................................................................................................... 7
Fault finding.................................................................................................................................. 8
WARNING
CAUTION MUST BE TAKEN IN THE CLOSE VICINITY OF THE FEEDER AS IT CONTAINS
MOVING PARTS THAT CAN CAUSE INJURIES AND, IN NORMAL OPERATION, STARTS
WITHOUT PRIOR WARNING.
THE POWER SUPPLY MUST BE SWITCHED OFF AT THE MAINS BEFORE ANY WORK IS
CARRIED OUT ON THE FEEDER, THE TRANSFORMER OR ANY OTHER ELECTRICAL
COMPONENTS. THE FEEDER AND THE TRANSFORMER CABINET MUST BE FULLY
ASSEMBLED BEFORE THE POWER SUPPLY IS CONNECTED.
THE FEEDER AND TRANSFORMER CONTAIN ELECTRICAL COMPONENTS THAT RETAIN
AN ELECTRIC CURRENT UP TO THREE MINUTES AFTER DISCONNECTION
ALL WORK ON ELECTRICAL COMPONENTS MUST BE CARRIED OUT BY A QUALIFIED
ELECTRICIAN.
TO COMPLY WITH C. E. REGULATIONS ONLY REPLACEMENT PARTS APPROVED BY
IRO AB MAY BE USED
Ref. No. 31-8931-0201-04/0103
31-8931-0201-04/0103-GB 01-01-22 12.40 Sidan 2

IWF 1131 2
Main Parts
Ref. No. 31-8931-0201-04/0103
Pneumatic threading (PTU)
Electrical control unit
Wind-on sensor
Stopper unit
Magnet finger
Fixed finger
Winding disc
Winding sensor
Yarn release button
Light emitting diode (LED) On/Off switch
Yarn store sensor
Yarn transport finger
31-8931-0201-04/0103-GB 01-01-22 12.40 Sidan 3

IWF 1131 3
System Orientation
Ref. No. 31-8931-0201-04/0103
SYSTEM
The system consists of feeders, feeder cables, PTU (pneumatic threading up), input yarn tensioners and
balloon break cones.
FEEDER
The feeder consists of:
• Motor and control circuit.
• Adjustable spool body.
• Pick length control stopper magnet.
• Yarn store sensor.
• Wind-on sensor.
• Winding sensor.
Spool body circumference, yarn separation size and stopper unit are mechanically adjusted on the
feeder. All other settings are carried out on the weaving machine keyboard and are transmitted to the
feeder through the serial communication. The yarn release is controlled by the weaving machine.
The motor speed control is a microprocessor based frequency controller situated in the cover above the
motor.
At feeder start-up, the number of windings on the spool body is controlled by the yarn store sensor
which indicates the outer limit of the yarn store. The number of windings supplied to the yarn store is
continuously counted by the wind on sensor whilst at the same time the number of windings removed
from the yarn store is counted by the winding sensor. This information is used by the microprocessor to
calculate the motor speed. This procedure ensures a constant yarn store.
The length of the pick is equal to the spool body circumference multiplied by the number of windings
removed during one insertion. The magnet pin is opened by a trigger signal from the weaving machine
and closes directly after the second to last winding passes the winding sensor.
31-8931-0201-04/0103-GB 01-01-22 12.40 Sidan 4

IWF 1131 4
Settings
Ref. No. 31-8931-0201-04/0103
SPOOL BODY CIRCUMFERENCE
The required pick length is the deciding factor when calculating the spool body circumference and the
number of windings for each pick. The table below indicates the pick length ranges that can be obtained
from different numbers of windings. To calculate the appropriate spool body circumference / number of
windings per pick, proceed as follows:
1. Determine the required pick length (drawing-in width plus waste).
2. Using the table below determine a pick length range that covers the required pick length.
3. The number of windings necessary to obtain the required pick length will be found in the right
hand column. If there are two possible values, always choose the lower value. Adjust the spool
body to the required circumference as follows:
Move the stopper unit to its uppermost position before any adjustments are carried out.
Adjust each finger in turn, first the fixed finger then the yarn transport finger. Only loosen the locating
screws sufficiently to move the finger, excessive loosening gives faulty values. When adjusting the yarn
transport fingers the winding disc eyelet must be aligned with the centre of the finger being adjusted .
Fixed finger adjustment:
1. Loosen the locating screw.
2. Adjust the finger using the circumference scale on the front plate as a reference.
3. Re-tighten the locating screw.
Yarn transport finger adjustment:
1. Align the winding disc eyelet with the finger to be adjusted.
2. Loosen the locating screw.
3. Insert the short end of the guide between the fixed finger and the yarn transport finger.
4. Adjust the yarn transport finger towards the fixed finger until the guide is felt to locate then, whilst
holding the guide and finger in place, re-tighten the screw.
MIN
378
756
1134
1512
1890
2268
2646
3024
No. of
Winds
1
2
3
4
5
6
7
8
MAX
508
1016
1524
2032
2540
3048
3556
4064
Pick length range (mm)
Stopper unit clearance
<10tex = 0,5mm
10-50tex = 0,7mm
>50tex = 1.0mm
Guide
Finger adjustment guide
31-8931-0201-04/0103-GB 01-01-22 12.40 Sidan 5