Experiment: Study on passage diagram of ring frame.
Theory:
The ring spinning machine was first invented in 1828
by the American Thorp. In 1830, another American scientist, Jenk, contributed
the traveller rotating on the ring. There have been many development has done
in ring spinning machine for the last years but the basic concept remained
unchanged.
Objectives:
1. To produce required count of yarn from the supplied
roving by the drafting.
2. To insert sufficient amount of twist to the yarn.
3. To winding the yarn onto the bobbin.
4. To build the yarn package properly.
Main Parts Ring Frame:
1. Creel
2. Guide roller
3. Trumpet
4. Drafting rollers
5. Yarn guide
6. Lappet
7. Balloon controlling ring
8. Traveler
9. Ring
10. Spindle
Diagram :
Description:
The feed material come from speed frame i.e. roving bobbin
is placed on the creel. The creel which is attached to the machine is umbrella
type. Then feed material is passed under the guide rollers and through the
trumpet in to the drafting zone. Here some draft is inserted in to the roving.
The draft system is 3 over 3 drafting system with apron. The delivery material
that is delivered from the front roller is reached to the traveler over
pneumatic waste collector, lappet and through balloon controlling ring. Lappet
is used to control the material path and balloon controlling ring is used to
control the balloon formation and spinning tension. Here roving is twisted by
the movement of the traveler around the ring. The yarn is then wound on the
ring cop.
Conclusion:
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