Knitting Cycle of the Bearded Needle Tricot Machine

Fig.A:Knitting Cycle of the Bearded Needle Tricot Machine

Figure.A: illustrates the knitting cycle of the bearded needle tricot machine

1. The rest position (a). The needles have risen to 2/3 of their full height from knock-over and have their beards towards the back of the machine.The presser is withdrawn and the guides are at the front of the machine with the sinkers forward, holding the old overlaps in their throats so that they are maintained at the correct height on the needle stems.

2. Backward swing and overlap shog (b, c). After swinging through the needles to the beard side, the guides are overlapped across the beards, usually by one needle space in opposite directions.

3. The return swing and second rise (c, d). As the guides swing to the front, the needles rise to their full height so that the newly-formed overlaps slip off the beards onto the stems above the old overlaps. This arrangement reduces the amount of guide-bar swing necessary and therefore the time required.

4. Pressing (e). The needle bar descends so that the open beards cover the new overlaps. There is a slight pause whilst the presser advances and closes the beards.

5. Landing (f). As the sinkers withdraw, the upward curve of their bellies lands the old overlaps onto the closed beards.

6. Knock-over and underlap shog (g). The presser is withdrawn and the continued descent of the needle bar causes the old overlaps to be knocked-over as the heads of the needles descend below the upper surface of the sinker bellies. The underlap shog which can occur at any time between pressing and knock-over usually occurs in opposite directions on the two guide bars.

7. The sinkers now move forward to hold down the fabric loops and push them away from the ascending needles, which are rising to the rest position.