Knitting Action of Bearded Needle Simplex Machine

Bearded needle was the first type of needle to be produced. It is the cheapest and simplest type to manufacture as it is made from a single piece of metal. We can define bearded needle as; the flexible hooked loop holder which is capable of enclosing the newly formed loop in order to draw it through the previously formed is called bearded needle. In this article, I will explain knitting action of bearded needle simplex machine step by step.

Knitting Action of Bearded Needle Simplex Machine:

Fig: Knitting action of bearded needle simplex machine
Figure: Shows the knitting action on the front needle bar; an identical sequence occurs afterwards on the back needle bar to complete the machine cycle.

(a) First rise of the needle bar. The knitting action has been completed on the back needle bar for the previous machine cycle. The front sinker/presser bar has withdrawn, leaving the back sinker bar to support the fabric. The guide bars have completed their third swinging movement so that they are now swinging towards the back of the machine, allowing the front needle bar to rise with the back needle bar still near to knock-over and thus helping to hold down the fabric. The front needle bar rises sufficiently to enable the old overlaps under the beards to slide down onto the needle stems.

(b) Return swing, second rise then lowering and pressing. As the guides swing to the back of the machine, the warp ends are wrapped over the needle beards. The front needle bar is now lifted to a higher position so that the new overlaps slip from the beards to a high position on the needle stems. As the front needle bar is lowered to cover the new overlaps, the front sinker presser bar moves to contact and press the beards so that the old overlaps slide onto the closed beards which descend through them.

(c) Completion of landing and knock-over, underlap and third guide bar swing. Whilst the needles descend further to knock-over the old overlaps, the guide bars make their underlap shog behind the front needle bar and then commence their swing towards the front of the machine to allow the back needle bar to rise for the second part of the machine sequence
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Mazharul Islam Kiron is a textile consultant and researcher on online business promotion. He is working with one European textile machinery company as a country agent. He is also a contributor of Wikipedia.


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