The document discusses the rapier loom, a type of shuttleless weaving loom. A rapier loom uses finger-like carriers called rapiers to pull the weft yarn across the loom between the warp yarns. There are two main types - single rigid rapier looms, which use one long rapier across the full width, and double rigid rapier looms, which use two rapiers entering from opposite sides to transfer the weft yarn. Rapier looms can operate at high speeds up to 1300 meters of weft per minute. They are flexible and can weave a wide range of fabrics from light to heavy weights.

1. Rapier Loom

2. MD SOHEL KHAN
Department of Textile Engineering
Port City International University

3. Loom
 1.What is loom?
 Loom is a mechanical device which is used
to produce woven fabric by the insertion of
warp and weft yarn. In weaving technology
; loom is the principle mechanical device
for weaving. Various types of loom are
used for doing the weaving task. Various
types of designed fabric are produced by
changing the machine setting.

4. Types of Modern Loom
 Rapier Loom
 Projectile Loom
 Air Jet Loom
 Water Jet Loom
 Multiphase Loom

5. Rapier Loom
Rapier loom is a
shuttleless weaving
loom in which the
filling yarn is carried
through the shed of
warp yarns to the
other side of the
loom by finger like
carriers called
rapiers.

6. continued
 A rapier loom uses a rapier to pull the weft yarn across the
loom.
 It can be a single rapier or double rapier.
 For a single rapier, a long rapier device is required to extend
across the full width of warp.
 For a double rapier loom, two rapiers enter the shed from
opposite sides of the loom and transfer the weft from one
rapier head to the other near the centre of the loom
 The advantage of two rapier system is only 50% of the rapier
movement is utilized in the weft insertion of single rapier loom

8. Single Rigid rapier
 The rigid rapier is a metal or composite bar usually with a circular cross
section
 The rapier enters the shed from one side, picks up the tip of the weft yarn
on the other side and passes it across the weaving machine whileretracting
 Single rapier carries the yarn in one way only and half of the rapier
movement is wasted
 Rapier length is equal to the width of the weavingmachine
 Requires high mass and rigidity of the rapier - to ensure
straight movement of the rapier head
 Single rapier machines are not popular

9. Single Rigid rapier

10. Continued….
 Advantage
• Problem of weft transfer does not arise and
normal range of fabric can be woven.
 Disadvantage
• One movement of rapier is wasted.
• Loom speed is very slow.
• The maximum weft insertion rate is 400
m/min

11. Single Rigid rapier

12. Double Rigid Rapier
 Two rapiers enter the shed from the opposite sides and meet at thecenter.
 The double rapier weaving machines are subdividedinto:
• One-sided weft insertion. One rapier is the transmitting rapier the other
is the taker rapier.
• Double-sided weft insertion. Each rapier acts alternately as the giver
and the taker.
 The giver picks up the yarn from the accumulator at one side, brings it
to the center of the shed, transfers it to the second rapier(taker).
 As the taker retracts, carries the yarn to the otherside.
 In a twin-rapier system, two rapiers move together from the same driving
source, as is necessary in face-to-face (i.e., double-plush) weaving

13. Double Rigid Rapier

14. Mechanism of Rapier loom
 A rapier is a rod or steel tape which carries the weft
yarn. In the other end, the rapier connected to the
control system.
 The rapier moves through the warp yarn by carrying
weft yarn from one end to other.
 There are two types of rapier loom. One types of rapier
loom consist a rapier in one end.
 The rapier is then retracted, leaving the new filling in the
place.
 Other types of rapier also available, in which the rapier
carries the weft yarn to the centre and the other rapier
from the opposite side carries the weft yarn from the
centre.

15. Continued….
 There are two types of rapier loom. One is flexible
and other is rigid rapier loom. The rigid loom takes
more space than rigid loom.
 Flexible rapier can be coiled, if it is too flexible
than it will buckle. The double rapier is used more
frequently than single rapier.
 A rapier machines can be operate at speeds up to
1300 meters of weft per minute. This type of rapier
is efficient. The noise level is high because it
speeds about 200 to 260 ppm.

16. Structure of rapier loom

17. Main parts
 12.Crank shaft.
 3.Bottom shaft.
 4. Grippers tapes.
 5. Rapier Loom Sensors.
 6. Rapier Loom Cutters.
 7. Rapier Loom Driving Wheel
 8. Rapier Loom Tapes
 .Motor.

18. Features
 High on quality
 Low cost
 Stable weft insertion
 PLC Base control
panel
 Rigid design

19. Continued….
Specification of rapier weaving machine is given below –
Specifications Name Specifications Value
Product Category Weaving
Machine Category Loom rapier weaving machine
Product Name Rapier Loom Machine
Product Model According to Manufacturer
Product Class New
Origin China/India/Others
Brand/Manufacturer Name of Manufacturer
Agent In Bangladesh No/Yes
Power 1.5~2.2kw

20. Specification
Temperature Normal
Certification SGS/Others
Production Capacity 100 Set/Sets per Month
Fidder 6/8
Droppers 10000pcs
Work Width 2300 (mm)
Warp Beam Diameter 600mm
Drum Diameter 300mm
Maximum Speed 280rpm
Weft Insertion 160-180m/min
Color Selection 6 color

21. Continued….
Color Selection 6 color
Spindle Number 392
Heald Frame 14
Motor Power 1.5 /2.0 Kw
Dimension 4450*2300*3100mm
Weight 3600kg
Description
The rapier transfer box build
with the most helix gears is
stable and dependable. Rear
beam tension structure is used
to balance tension of warp for
high density fabrics

22. Advantage
 Less floor space requirement , spatial
productivity is higher.
 Flexible rapier band are wound on
wheels placed in semi-circular channels
when they are withdrawn outside the
shad, and the result is wide working
widths up to 5m.

23. Disadvantages
 The warp threads should not be damages by
the ribbed guides .
 Guiding system may lid the ink breakage due
to not failure .
 Using fancy yarn in warp direction is almost
impossible.
 Wasted movement.

24. End Product
 Very light fabrics with 20 GSM
to heavy fabrics with around
850 GSM.
 Rapier machines are widely
used for household textiles
and industrial fabrics.
 Rapier machines are
designed for universal uses
like – Weave classic Wool,
Cotton, Man-made fibres, fine
Silk and Fancy yarns.

25. Conclusion
Rapier machines weave more rapidly
than most shuttle machines but more
slowly than most other projectile
machines. An important advantage of
rapier machines is their flexibility, which
permits the laying of picks of different
colours. They also weave yarns of any
type of fibre and can weave fabrics up to
110 inches in width without modification.

26. THANK YOU