Various tappet loom parts with function
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The document defines and describes the key parts of a tappet loom. A tappet loom uses tappets, which are levers or projections moved by cams, to produce reciprocating motion that allows the loom to weave fabric. The main components of a tappet loom are the warp beam, heddles, shuttle, reed, tappets, and take-up roller. The tappets are connected to treadles and use cam motion to alternately lift the heddles, creating a shed for the shuttle to pass through and weave in the weft thread.
Various tappet loom parts with function
- 1. Nurunnabi Lecturer,Textile Engineering National Institute of Textile Engineering & Research
- 5. Tappet is a type of cam to which a rotary motion is given for the purpose of producing reciprocating motion in rods and levers by sliding contact. Why Called Tappet Loom? Loom a hand-operated or power-driven apparatus for weaving fabrics(Woven Fabric)
- 6. Cam vs Tappet - What's the difference? Cam: a rotating or sliding piece (such as an eccentric wheel or a cylinder with an irregular shape) in a mechanical linkage used especially in transforming rotary motion into linear motion or vice versa Tappet. : a lever or projection moved by some other piece (such as a cam) or intended to tap or touch something else to cause a particular motion.
- 7. Various Parts of a Tappet Loom A. weaver’s beam or loom beam B. warp threads (ends, sheet form) C. back rest or bearer D. lease rods E. “shed” F. healds G. reed H. fell of cloth or beat-up point J. shuttle K. breast beam L. cloth take-up roller M. tug bar N. cloth roller O. tappets P. tappet treadles, with anti-friction bowls R. treadle fulcrum S. roller-top, heald reversing motion T. rocking rail, or shaft U. sley sword V. crank arm W. sley X. top shaft Y. bottom shaft
- 8. Weavers Beam/Back Beam/Warp Beam The warp beam, which holds the lengthwise yarns, is located at the back of the machine and is controlled so that it releases yarns to the weaving area of the loom as needed.
- 9. Whip roll/Back rest This is guide roller which directs the warp threads on their way to the lease rods and heddles.
- 10. Lease Rod Another guiding device it is for the warp yarns. These are two sorts of wooden or glass rods set between the whip rolls and the heddles. Alternating warp threads can be kept separate by passing over and under these rods.
- 11. Drop Wire Parts of a warp stop motion. Warp yarn passed through drop wire called pinning. No of warp yarn=no of drop wire
- 12. Heald frame/Heald shaft/Heald To Shed formation. Shed is a dividation of warp threads into two equal/unequal parts.
- 13. Shuttle To carry out weft yarn/pirn package.
- 14. Shuttle Box Shuttle box is the housing for the shuttle and is made of wood. It has a picker and a spindle. It may also accommodate the picker without spindle. The top and side of the shuttle box unto the sley race are open. The shuttle dwells inside the box for the intermediate period between two successive picks.
- 15. Reed This is inevitably a combination made up of steel wire rods set vertically in a frame. The spaces between the wires are known as splits or dents and are kept even and parallel. This is the first function of reed. Its second function is to feed the filling thread into position. To do this it has to move in a back and forth motion.
- 16. Sley The part of a loom mechanism in which the reed is fixed and which moves the reed for ward to beat up the weft.
- 17. Picker Picker is a piece made either of synthetic material or leather. Picker may be placed on a grooves or spindle in the shuttle box. Picker is used to drive the shuttle from one box to another. While entering the box it also sustains the force of the shuttle.
- 18. Buffer Usually, the buffer has a hollow cylindrical shape formed by convolutely winding a leather sheet. object of the invention is to provide a buffer which will withstand the impact of the picker stick without substantial deformation and loss of flexibility.
- 20. Front Rest/Breast Beam The bar his is, at the front of the loom over which the cloth passes on its way to the cloth roller
- 21. Take up roller/Emary roller To take down fabric from weaving zone
- 22. Weaving Zone Where Shedding, Picking & Beat up is done
- 23. Cloth Roller It is located at the front of the loom, hold the completed fabric.
- 24. Shaft Crank Shaft Bottom Shaft Counter Shaft
- 25. Primary Motion of a loom
- 26. Secondary Motion Take up motion Let off motion
- 27. Tertiary Motion 1.Warp stop motion 2.Weft stop motion 3.Warp protector motion 4.Fasr reed motion 5.Loose reed motion 6.Temple motion 7.Box motion etc
- 28. THANK YOU