 The Magnetic Loom Sensor
is an highly sophisticated and reliable device to
sense the weft breakage, empty bobbin, and uneven
weft tension in Circular Loom. The sensor is
heavy-duty type and suits for environmental
conditions of Plastic Woven sacks Industry. The
sensor works on the principle of magnetism, there
by eliminating the problems like dust, ambient
light, reflection of fabric which are prominent
in light based sensors. The sensor is totally
sealed and hence, virtually no maintenance is
required in day-to day operations. The design of
sensor is such that, installation is very simple
and requires fitting of boom reflector assemblies
(with magnets fitted in place of diamond) on boom
pipe, mounting of sensor on the loom and fitting
of relay card in panel. The magnets are arranged
in such a way that North and South poles of the
magnets comes under sensor alternately avoiding
magnetization of sensor .
The 3-core wire from sensor connects to relay
PCB. When shuttle bobbin runs out of the tape or
if the shuttle tape breaks, then magnet rotates
and comes under magnetic sensor, this magnetic
field is sensed by sensor, and relay is
energized. The contact of the relay stops the
loom and cramming is started. The sensor can be
used on other types of loom also with
modification in Magnet Holder. We have already
developed the magnet holder for different make of
loom. We can also design the magnet holder
assembly for any other type of Loom
Who is it for
- For Circular Loom of Woven Sack Industry.
- A reliable and dependable option for
Photo Cell.
- Zero wastage due to tape breakage in
shuttle bobbin
- Works on magnetic principle
- Full Utilization of shuttle bobbin
- Single operator can handle multiple
loom
- Increases loom efficiency.
- Increases Quality of fabric
- Fast pay back
- Non Polarized type
The Advantages of Sensors.
- The shuttle bobbin can be completely
utilized hence it is not necessary to put
it on creel stand for further use.
- As smaller bobbins removed from shuttle
are not loaded on creel, the creel
stand can be loaded with large size
bobbin and frequent stoppage to change
creel bobbin is avoided.
- One operator can handle multiple loom as
he does not have to monitor the shuttle
bobbin constantly.
- The wastage due to tape breakage in
shuttle bobbin is totally avoided, as
loom stops (with cramming if enabled) ,
immediately if tape breaks.
- As the Sensor is based on magnetic
principle, the effect of dust and calcium
carbonate is nil. The Sensor does not
requires any maintenance
- The efficiency of loom increases and
quality of fabric is also improved as
loom stops even if the shuttle tape
is slightly loose.
- The pay back of the system is fast due to
more production, improved quality, less
down time of the loom and reduced
wastage.
| Sensor diameter |
20mm |
| Sensor length |
130mm |
| Sensing Distance |
33 mm and above |
| Type of sensing |
Magnetic |
| Number of magnet |
Four ,Six or Eight |
| Magnet Orientation |
Alternately North And South |
| Loom Type supported |
Four , Six or Eight Shuttle |
| Type of Magnet Holder |
Boom Reflector Assembly |
| Sensor Cable length |
5 meter (8.5 meter optional) |
| Loom speed |
120 to 300 rpm |
| Relay contact |
1 NO / 1 NC |
| Supply Voltage |
24 volt AC |
| Supply Frequency |
50 Cycles |
| Power Required |
0.5 watt (Maximum 2.0 watts) |
| Operating Temperature |
up to 50 Degree Centigrade |
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