- The working diameter (Circular needle beds and needle bars)
- The working width (Fiat needle beds as well as needle bars)
- The needle approximate or needle pitch.
ane. The working diameter:
The diameter of a knitting machine is measured at the bottoms of two contrary: needle grooves inwards a cylinder or at the tops of ii contrary needles inward a circular bar, too is ordinarily expressed inward inches.
ii. The working width
The working width of the machine should non live misused amongst the “actual working width”. The working width of a knitting motorcar is a measure out (inwards cm or inches) describing the distance between the outset as well as concluding needle in a apartment needle bed, whilst the “actual working width” is the distance betwixt the showtime together with final needle really used in the needle bed during knitting.
|Fig: Knitting auto|
3. Needle judge or needle pitch
The needle approximate of a knitting motorcar (as well called cut or gage) is a measure out expressing the issue of needles per a unit of measurement of the needle bed (bar) width.
Gauge, northward = How many needles are used inwards 1 English language inch.
Number of needles
due north = ………………………………………..
One English language inch
Highest needle estimate is nigh sixty and lowest needle gauge is nigh 2 to 2.5.
The needle pitch is the distance betwixt 2 neighboring needles in the same needle bed (bar), from the center of a needle to the heart of the neighboring needle.
Relationship between the needle guess too the needle pitch is every bit follows:
Needle pitch (Length units/needle) = ………………………………………………….
Needle gauge (length unit)
The pitch or distance between i needle together with some other is proportional to the needle gauge or thickness in addition to thus to the infinite available for the yarn. As the diameter of a yarn is proportional to its count, a human relationship exists betwixt the range of optimum counts of yarn which may be knitted on a item machine and its car judge. Machine judge thence influences choice of yarn as well as count, too affects textile properties such as appearance and weight. For a given automobile diameter or width, finer gauge machines tend to knit a wider fabric every bit more wales are involved. For instance a thirty” diameter circular motorcar power have 1716 cylinder needles inwards 18G in addition to 1872 cylinder needles in 20G.Coarse gauge machines have latch needles with larger dimensions requiring greater movements. During knitting the size of the knitting cams are correspondingly big and then less cam systems can be accommodated about a given car diameter (for case 30”) then so coarser estimate machines often have fewer feeders.