What is a ring twister

2020-07-25 15:36:46 247

The folded yarn from the bobbin is output from the guide roller by the guide rod and the horizontal guide, and is wound on the bobbin by the guide hook and wire. When the spindle drives the bobbin to turn together, the yarn drags the wire loop around the ring collar to twist the yarn.

Most of the bobbins on the bobbin frame are looped in a horizontal way, and the bobbins are dragged from the side and unwound. In order to reduce the breakage caused by excessive tension during unwinding of single yarn, conical bobbins are used to cover the spindles tightly. The single yarn is drawn from its own bobbins axially, and is combined in the feeding frame. The twisting machine can save the drawing process and is generally only suitable for the double strand yarn with low quality requirements. The guide roller is usually a pair of smooth rollers. The lower roller is a section of 6 ~ 8 ingots, and the full length is inlaid. The upper roller is one per ingot, pressurized by dead weight and driven by friction of the lower roller. The ply yarn has a certain way of winding on the roller, so that the yarn and roller have a long enough friction-encircling arc to ensure that the roller delivers the yarn to the twisting area at a uniform speed. In the special spinning coarse yarn or double twist yarn machine, some use two bottom rollers, or even two pairs of rollers, in order to adapt to the high twisting tension, to achieve the purpose of uniform feeding yarn. In the roller part, some twisters are equipped with a self-stopping device for breaking ends. Some twisters have a sink under the guide rod and water before twisting, which is called wet twister. Wet-twist yarn has the advantages of high strength and smooth surface, but roller and guide yarn parts need to be made of rust-proof material.

The winding mechanism of ring twisting machine is mostly the same as ring spinning machine. The steel collar plate is raised and lowered by the short moving path of the forming CAM transmission action, and the position rises a certain height after each lifting, so that the pipeline is wound into a conical cross winding package. Double - sided bobbins are often used in spinning coarse yarn or in double - twisting machines. The steel collar plate can increase the density and capacity of the coil by making a single, relatively slow, full lift. The main difference between traditional fancy twister and ordinary twister is the yarn feeding part. The mechanism and motion of the feeding part are also different depending on the type of fancy yarn spun.