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Quick Facts
| Medium Of Instructions | Mode Of Learning | Mode Of Delivery |
|---|---|---|
| English | Self Study | Video and Text Based |
Course Overview
Principles of combing, Roving preparation & Ring spinning by Swayam will focus on three methods, such as combing, roving preparation and ring spinning, as the subject. It will look into the construction, design features and working principles of the machines. The focus would be on "know why" instead of "know how". It will clarify the role of the machine and process parameters in process efficiency. It will address the relationship between technology and the design of machines.
Through the finely formulated course format, the candidates will not only be able to attain a clear understanding of the functioning of machines and its relation with technology and design of machines but also grasp the knowledge of machine working parameters.
The course offered by Swayam provides candidates with an extraordinary opportunity to escalate their basic knowledge of machines into a professional understanding of various aspects that are responsible for the performance of a machine.
The Highlights
- Course certification by Swayam
- Online learning platform
- Government assisted documents
Programme Offerings
- video lectures
- Reference books
- Self-analysis tests.
Courses and Certificate Fees
| Fees Informations | Certificate Availability | Certificate Providing Authority |
|---|---|---|
| INR 1000 | yes | IIT Madras (IITM) |
The fee details for the Principles of combing, Roving preparation & Ring spinning by Swayam course are given below:
- The course is a government programme and therefore can be pursued free of cost.
- The candidate will have to pay an amount of Rs 1,000 to appear for course certification examination.
Fee category | Amount is Rs |
Cost of programme | NIL |
Examination cost | Rs. 1,000 |
Eligibility Criteria
Work experience
Students of textile technology can apply to this course.
Certification Qualification details
To be eligible for course certification in Principles of combing, Roving preparation & Ring spinning by Swayam the candidates will have to appear for an examination. The candidates will be marked on the exam score of 75% of the proctored certification exam score out of 100. In addition to this, the candidates will have to score a minimum of 25% in the assignment score in the best 8 assignments out of 12 assignments provided.
The final score will be calculated on exam score plus average assignment score. Minimum requirements being able to score more than equal to 10/25 in average assignment score and more than equal to 30/75 in exam score. Failing at either will result in cancelling eligibility of candidates to attain course certification by Swayam. The candidate will not receive the certificate even if the final score is 40/100.
What you will learn
After completing the course of Principles of combing, Roving preparation & Ring spinning by Swayam:
- The candidates will have rigorous knowledge on the functioning of machines
- The candidates will know about the relevance of relation between machines and technology
- The candidates will be imparted with the knowledge of construction and designs of machines which relates to its functionality
- The candidates will be able to learn the parameters and performance factors of machines
- The candidates will learn the skill of spinning fibres by the way of ring spinning
- The candidates will learn about the working principles of the machine and its parameters
- The candidates will be able to gain knowledge on various principles and mechanisms relating to combing, roving and ring spinning
Who it is for
The certified course of Principles of combing, Roving preparation & Ring spinning by Swayam is recommended for:
- The course is preferably for students of textile technology
Admission Details
The candidate is requested to follow the below mentioned steps to enrol for the course of Principles of combing, Roving preparation & Ring spinning by Swayam.
Step 1: The candidates should visit the course website by clicking on the following link:
https://onlinecourses.nptel.ac.in/
Step 2: The candidates are required to register on the website by creating an id with password.
Step 3: Once the account is registered the candidates can easily access the course.
The Syllabus
- Flow chart of combed spinning process
- Objectives of combing
- A consequence of short fibres in cotton
- Segregation principle of short fibres from longer ones
- Combing operations and its classification
- Sequence of operation
- Timing diagram
- Pre-combing operation
- Comber lap formation
- Design features and working principle sliver lap & ribbon lap machines
- Draft and its influence on lap quality
- Structure and design feature of a combing machine
- Working principle
- Design features of combing machine elements ( lap feed roller, cylinder comb, top comb, nipper assembly, detaching roller, sliver table, drafting rollers, coiling arrangement)
- Mechanism for lap feed
- Nipper assembly movement
- Detaching roller movement
- Cylinder comb Web structure
- Condensation
- Sliver guidance & drafting process
- Theory of noil extraction fro forward and backward feed machines
- Influence of process parameters on combing efficiency
- Production and draft calculation
- Objects of roving frame
- Machine configuration
- Working principle
- Drafting system
- Drafting elements (cradle, aprons, condenser etc.)
- Flyer construction
- Presser
- Twisting
- Flyer top
- Twist diameter count relationship Bobbin geometry
- An operation for bobbin building
- Winding process
- Winding equation
- Bobbin leading vs flyer leading frame
- Variable speed drive
- Differential gear Building motion: function and working
- Drive analysis
- Motion flow
- Ring frame: machine configuration
- Various components
- Working principle
- Drafting
- Drafting elements
- Drafting angle
- Difference between speed frame and ring frame drafting system
- Break draft and main draft distribution
- Twisting and winding principle
- Twisting winding equation
- Twist flow
- Winding tension
- Bobbin building: bobbin geometry
- Nature of ring rail movement
- Winding and a binding layer
- Formation of base and conical bottom
- Ring and traveller: types, purpose, traveller number
- Spindle: construction, drive
- Spinning geometry
- Spatial location of elements
- Balloon mechanics
- Tension in balloon yarn
- Balloon size
- End breaks
- Non uniformity
- Causes & remedies
Evaluation process
The candidate will have to score an average assignment score of more than equal to 10/25 and proctored exam score of more than equal to 30/75 to be eligible for the course certification.