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What is a single cylinder round sock machine?

Update:15 Jun 2020
Summary:

It can produce socks with various tissues such as plain […]

It can produce socks with various tissues such as plain needles, yarn adding, tucks, jacquard, loops and horizontal stripes. The main loop forming parts are latch needle, sinker, foot piece and jacquard piece. Latch needle heels are divided into long, medium and short. Generally, long and short heel needles are arranged on half of the circumference of the barrel respectively. The latch needle moves up and down in the cylinder groove to knit. The sinker is located between the tongue needles and moves in and out radially. Its function is to hold the coil when retracting the loop, and then pull the coil after forming the loop. The length of the coil is determined by the distance of the needle from the plane of the sinker when forming a loop. The foot piece can transmit the motion to the tongue needle, and the jacquard piece has multi-level piece teeth, which can be used for needle selection. After the needle is selected, the latch needle runs on different routes to decide whether to participate in knitting. The upper middle triangle and the left and right bending triangles of the round sock machine triangle system are symmetrical triangle seats (Figure 1), so the needle cylinder can be knitted when it rotates in one direction or two directions. The jacquard triangle acts on the heel of the jacquard sheet, which can raise the latch needle to the height of withdrawing, pass above the right bending yarn triangle, press down through the upper middle triangle, feed the yarn, and then descend and form along the left bending yarn triangle The new coil, take off the old coil, and then rise along the panel, and finally form the coil. If the jacquard sheet is pushed into the cylinder groove by the needle selection mechanism, it will not rise along the jacquard triangle, but will cause the latch needle to run at a lower position. At this time, neither the yarn nor the loop form.

Round socks machine is characterized by bidirectional weave bag-shaped sock heel and sock toe. The method of knitting the socks is the same as the head of the socks, and is completed by a needle picker and a needle pusher. When the sock heel starts to knit, first stop the knitting needles on the sock surface. At this time, the needle cylinder becomes bidirectional, and the left and right needle pickers alternately enter the work. When the needle heel encounters the needle picker, the needle picker picks a needle to Above the upper middle triangle, make it withdraw from work, this is the needle closing process. After receiving a certain number of needles, the needle presser starts to work, so that the knitting needles that are provoked to withdraw from the work will gradually participate in knitting. This is the needle laying process. Each time the needle presser pushes down two needles when the needle is set, the needle picker still picks up one needle, so that the number of knitting needles participating in the work gradually increases. After the needle is released, the sock heel is formed. The sock head can also be knitted by the above method, but the closing of the sock head can be sewed in a special process in the future, or it can be directly sewed on the sock machine, and other methods such as kinking and hot melting can also be used.
When weaving certain long and medium-sized socks, a sock hook is placed in the disc groove above the cylinder. The sock hook moves radially in and out, and the starting loop is hooked by the front hook (Figure 2). And retracted to hide the stitches. When the single-layer socks were woven to a sufficient length to fold in half to the desired double layer, the sock hook moved forward, transferring the starting stitch to the tongue needle to fold the double-layer socks. The action of knitting needles when opening and folding is completed by another triangle system.

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