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Conventional loom and modern loom
This presentation compares conventional and modern looms. Conventional looms operate more slowly with lower production capacity, while modern looms operate faster with higher output. Conventional looms are manually operated, while modern looms use electric power. Modern looms allow for more design variety and improved safety systems compared to conventional looms. Specific modern loom types discussed include rapier, air jet, water jet, and projectile looms, which utilize different automated processes for inserting the weft through the warp shed.
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Conventional loom and modern loom
- 1. WELCOME TO THIS PRESENTATION Md.Abdullah-Al-Masud ID : 141-23-3760
- 2. TOPIC DIFFERENCE BETWEEN CONVENTIONAL LOOM& MODERN LOOM TOPIC
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- 4. Loom: Loom isa mechanical device which interweaves warp and weft yarns into fabric, that’s fabrics are suitable for use as dress or industrial uses.
- 5. Classification of loom Loomcan be classified into two classes: 1.Conventional loom 2.modern loom
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- 8. Hand loom Ahand loom is a loom that is manually operated, unlike motorized or electrically powered looms. It is an apparatus on which weavers create fabric by interlacing the warp and weft threads. The handloom was invented about 2,000 years ago and was brought to England by the Romans.
- 9. Advantages and disadvantagesof hand loom Advantages: Hand loom is more economical. Easy to operate. Suitable for low scale production type industry. Separate parts are available in market. Disadvantages: Causes more noise in the work field. Shuttle cause abrasion on warp yarn which increase wastage percentage. Warp break increases for shuttle. Lower production rate then shuttle less loom.
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- 11. RAPIER LOOM Rapier loomis 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.
- 12. RAPIER It is themain part of rapier loom It is used insted of shuttle Shattle Exit Gripper Enter Gripper
- 13. Picking Mechanism Therapier head on creel side picks up yarn from designated cone and is carried towards centre of warp shed by the rod. Simultaneously the matching rapier head from opposite side moves in, as shown in the central diagram. The picking cycle is completed when both rapiers retreat to their original position.
- 14. Single Rapier DoubleRapier
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- 16. What is airjet loom Air jet weaving loom is that, at which jet of air is used to propel the weft yarn through the shed at a speed of up to 600 ppm.
- 18. Advantage and Disadvantage Advantage o Multicolor weft inserting o Automatic pick repairing o Heavier yarns are suitable for air jet looms Disadvantage o Power consumption dew to compressed air o Lighter fabrics are very difficult to control through shed o Too heavy yarns also can't be carried across the loom by air jet
- 19. Weaving system Theair jet weaving machine are supplied with compressed air maintained from central source The preparation of the air before its distribution of the air to the individual weaving machine through a valve system • Filtering • Compressing • Cooling • Drying • Air tank
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- 21. Water Jet Loom A water Jet is the machine for weaving cloth (loom) which use a Jet of Water to insert the weft (crosswise threads) into the warp (length wise threads) The force of air water carriers the yarn from one side to the other.
- 23. Advantage High Efficiency Low Drag and Shallow Draught Smooth and Quiet Total Safety
- 24. The water jetpicking system of The weft insertion on a water jet weaving machine in divided into three phases . a. Acceleration of the water in the pump prior to its injection into the nozzle. b. Jet outlet from the nozzle c. Flow in the free environment different form o Compact o Split o atomized
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- 26. Projectile Loom Itis sometimes called missile loom as the picking action is done by a series of small bullet like projectiles which hold the weft yarn and carry it through the shed and then return empty.
- 27. Method The method ofmoving the reed and the projectile track differs from a conventional automatic loom mainly in two respects. The method of insertion of weft into the warp shed The method of moving the reed and the projectile track
- 28. Advantages of ProjectileLoom Two or three cloths can be woven simultaneously. It is possible to achieve weaving performances with breakage rate per square meter of cloth. 50% of the number of breaks that would occur on a conventional loom Since the projectile is passing through guides there is no reed to projectile or projectile to yarn contact.
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- 30. Conventional loom Lowrunning speed. Comparatively lower production capacity. Simple design can be produced. Driven manually. Initial investment is comparatively lower. Shedding, picking & beating up is done automatically. Shuttle loom. Higher warp shed need. Less number of design variety can be produced. Safety system is not properly improved.
- 31. Modern Loom Highrunning speed. Higher production capacity. Complex design can be produced. Driven by electric power. Initial investment is high. Shedding, picking & beating up is done automatically. Shuttle less loom. Lower warp shed needed. More number of design variety can be produced. Safety system is improved.
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