Wednesday, November 9, 2016

Features of Sweater Knitting Machine

Sweater Knitting Machine
Sweater knitting machine also referred to as flat bed or v-bed knitting machine. That have two rib gated, diagonally-approaching needle beds, set at between 90 and 104 degrees to each other and are positioned so that the upper ends form an inverted “V”. The interactions between yarn and knitting elements that create the fabric occur at the apex of the V and the fabric moves away downward between the two beds, drawn down by the take-down system. During knitting in v-bed knitting machine, the edges of the knock-over bits restrain the sinker loops as they pass between the needles and thus assist in the knocking over of the old loops and in the formation of the new loops.
Sweater Knitting Machine
Fig: Sweater knitting machine
Modern V-bed knitting machine is fully automated, electronically controlled, precision knitting system. The operation and supervision of the machines of the simpler type are also less arduous than for other weft knitting machines.

Features of Sweater Knitting Machine 
The main features of a V-bed flat knitting machine are listed below:

1. Numerically these are the most important industrial knitting machines.

2. The needles, mounted in beds opposed in an inverted 'V' formation, are operated by cams in a reciprocating carriage.

3. The hand flat machine is still widely used but most modern machines are powered.

4. Many are employed to produce collars and rib trimmings for garments made on other machines, but because of the almost unlimited patterning scope available with jacquard flat machines considerable numbers are used for the production of patterned fabrics and garment lengths. Automatic narrowing has been common on these machines for some time and models are now being offered with full fashioning capability.

5. Their main disadvantage is low productivity compared with other type.

6. Most have a single knitting head or section but versions with 2 to 6 sections arranged side by side are produced.

7. Arrangement of 2 sections back to back allows knitting to take place in one direction using 15 or more carriages that traverse over the front section and return over the back one; the resulting machine is thus a hybrid circular flat machine.