Rib circular knitting machine :
The structure in which the face and back loop occurs along to the coarse successively but all the loops of a wale are the same is called rib structure. The circular knitting machine which is used to produce the rib structures is known as the rib machine. Here flow chart of yarn feeding of rib circular knitting machine are as follow:
Flow Chart of Yarn Feeding of Rib Circular Knitting Machine :
Creel
↓
Feeder
↓
Needles
↓
Fabric spreader
↓
Fabric withdraw roller
↓
Fabric winding roller
A brief description of the above process are:
Creel: Creels are the knitting elements that carry the yarn packages to feed the knitting zone.
Feeder: The feeders feed the yarn into the needle hooks and control the needle latches in their position while the needles attain their position.
Needle: It is the principal element of knitting m/c. The function of the needle to retain the old loop & to receive the new loop.
Fabric Spreader: A simple fabric spreader is a solid wooden plate, placed above the takedown rollers & held in position by the fabric tube.
Fabric Withdraw roller: This mechanism withdraws the fabric from the needles.
Fabric-winding roller: It is the last step of this machine. Winding the fabric in the winding roller.
In circular knitting machines, yarn count primarily depends on the needle pitch and thus the machine gauge. As the diameter of yarn is proportional to its yarn count. A relationship exists between the range of optimum counts of yarn that could knit on a particular machine and the gauge of the machine. However, there is no concrete formula suitable for calculating the yarn count of a mechanical gauge. This is because a range of yarn counts can be used on the same knitting machine gauge, and the ‘knit ability’ also depends on the knitted structure, the desired fabric appearance, and the fabric properties.
Author of This Article: Rofiquzzaman Raju Fabric Technologist, B.J.Group, Mawna, Gazipur Email: [email protected]