Study on Material Passage Diagram of Speed Frame

Md. Rubel Miah
Department of Textile engineering
World University of Bangladesh
Email: rubel099@gmail.com

Experiment name:
Study on material passage diagram of speed frame / roving frame / simplex machine.

Introduction:
Speed frame is the machine where the sliver is subjected to one or more attenuating process to the attenuated sliver receive a small amount of twist and is wound on bobbin suitable for creeling at next process. Roving is the output product of speed frame. It is fine fiber stands which is used in the find process of preparation for spinning. It is loosely twisted stands of fibers.

Objects:

Attenuation of drawn sliver to from roving or required count of drafting.
Insert small amount of twist give required strength to roving.
Wind the roving onto the bobbin.
Build the roving in full length of bobbin in such a from which will facilitate handling, transfers and feeding to ring frame.

Tasks or Functions of Speed Frame
The tasks of a speed frame machine may be divided into a number of individual operations, each of which is almost independent of the others.

The major tasks of the speed frame process are listed as follows:

Drafting: to reduce the size of the strand
Twisting: to impart necessary strength
Laying: to put the coils on the bobbins
Winding: to wind successive layers on the bobbin at the proper rate of speed
Building: to shorten successive layers to make conical ends on the package of roving

Main Parts Speed Frame:

parts of speed frame — Fig: Parts of speed frame

Separators/Spacer
Guide rollers
Drafting rollers
Dead weight
Flyers
Spindles
Motor
Bottom rollers
Rubber-covered top online rollers
Top arm
Aprons (top and bottom)
Condenser (inlet and ﬂoating)
Pressure arm

Material Passage Diagram of Speed Frame:

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:
Our teacher and lab assistants are very much helpful to us. Their well teaching and instruction help us greatly to understand material passage diagram of speed frame machine. I think this practical will be very helpful in my future career.

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Founder & Editor of Textile Learner. He is a Textile Consultant, Blogger & Entrepreneur. Mr. Kiron is working as a textile consultant in several local and international companies. He is also a contributor of Wikipedia.