Comparison between Mechanical & Electrical Interlock Circular Machine

Last Updated on 21/03/2021

Experiment Name:
Comparison between Mechanical Interlock and Electrical Interlock circular knitting machine.

Features of interlock circular knitting machine:

Machine has two beds. Machines may be flat or circular, but generally circular.
There are two sub sets of needles in each bed, the sub sets are known as short needles and long needles, respectively.
Two sets of cam system, i.e. cam path in each bed accommodate short and long needles of the corresponding beds.
Needles in two beds face each other – short needles in one bed face the long needles in the other bed and vice versa.
Short needles in one bed make loops in conjunction with short needles in the other bed, similarly long needles in one bed make loops in conjunction with long needles in the other bed.
Separate yarns are to be supplied to the short needles and long needles for loop formation through separate feeders.
Short needles and long needles don’t make loop simultaneously but with a time gap.
Loops made by one set of needles are locked by the loops made by the other set of needles.
Each interlock course is composed of two rib courses. See the below figure.
Minimum two yarns are needed to produce a fabric.
Fabric has double faced as well as very stable structure.
Fabric surface is smooth.
Fabric is equally thicker to rib but much more compact.
Fabric neither curls nor ladder.
Like rib, interlock can be made of different combination of needle gaiting.
Interlock fabric made from 2×2 needle gaiting or 2×2 rib is known as eight lock fabric, as there are total eight loops in a unit of interlock loop.
Machine is complicated and costly.
Fabrics are dimensional stable, heavy and costly.

Objects:

To know difference between Mechanical Interlock and Electrical Interlock circular knitting machine.
To know similarities between these m\cs.
To identify the Mechanical Interlock and Electrical Interlock circular knitting machine.

Machine specification:

Mechanical interlock circular knitting machine

Brand: MYK
Model: FILS
Origin: Japan
Manufacturing company: MIYAKE KNITTING MACHINE W. LTD.
Manufacturing year: 1965
Serial: 1289/3
Dia of cylinder: 17 inch
Needle Gauge: 20
No of feeder: 20
No. of needle: 204
Motor Rpm: 1430

Electronic interlock circular knitting machine

Brand: FUKUHARA
Model: V8ME42
Origin: Japan
Manufacturing Company: Precision Fukuhara Works. Ltd.
Serial: 1352761
Dia of cylinder: 30 inch

Comparison between Mechanical Interlock and Electrical Interlock circular knitting machine

Mechanical Interlock	Electronic Interlock
1. Top side is closed.	Top side is closed.
2. Cylinder and dial are used in this machine	Cylinder and dial used in this machine
3. Two set needle used one for cylinder and one for dial.	Two set needle used one for cylinder and one for dial.
4. 2-butt cylinder needle and 2-butt dial needle, 2-cam truck in the cylinder and 2-cam truck in the dial used in this machine.	4-butt cylinder needle and 2-butt dial needle, 4-cam truck in the cylinder and 2-cam truck in the dial used in this machine.
5. Sinker not used in this machine.	Sinker not used in this machine.
6. Needle detector and fabric detector are not present.	Needle detector and fabric detector are present.
7. Negative feeder.	Positive feeder.
8. Delay timing are used	Delay timing are used
9. Over head creel used.	Side creel used.
10. Cylinder and dial are present.	Cylinder and dial are present.

Conclusion:
It is a very important experiment for us. From this experiment we can learn features of interlock circular knitting machine and also identify the Mechanical Interlock and Electrical Interlock circular knitting machine. It is very helpful in our student life.

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Mazharul Islam Kiron

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