শুক্রবার, ৬ মে, ২০১১

Two major classes of warp knitting m/cs:-


1. Tricot warp knitting m/c

2. Raschel warp knitting m/c.

Features Tricot warp knitting m/c:

In the past, tricot m/cs mainly
employed bearded needles with a 
pressure bar
 
Tricot m/cs have a gauge expressed
in needle per inch and chain link 
numbering 0, 1, 2, 3, 4 etc. generally
with three links per course
 
 
 
Their sinkers, which are joined
 
to each other at the front and
 
back, never move clea
 
r of the needles as they
 
combine the functio
 
ns of holding down, knocking
 
over and supporting the
 
fabric.

 
The fabric is drawn-away 
 
towards the batching roller almost at right angles to the needles bar.
The warp beams are accommodated in an inclined arc 
towards
 the back of the m/c with the top beam
 supplying the front guide bar and the bottom beam 
supplying the back guide bar
The warp sheets pass over the top of the guide bar rocker shaft to their tension rails situated at the front of the m/c
Mechanical attention to the knitting elements is carried out at the front of the m/c, as the beams prevent across to the back.
As all the warp sheets are drawn over the rocker shaft to the m/c, it is easier to thread up the guide bars commencing with the needle bar.
The guide bars are therefore numbered from the back towards the front of the m/c because of threading sequence



কোন মন্তব্য নেই:

একটি মন্তব্য পোস্ট করুন