Carding machine centrifugal clip drafting device

Figure 9-25 shows the centrifugal forceps puller on the bc582 card. Special equipment for the textile industry on the winder. As the last process of spinning and the first process of weaving, winding is the link between the past and the next.“bridge”Therefore, it occupies an important position in the textile field.

The structure of the double twisting unit of the double twisting machine mainly includes the spindle braking device, the spindle part of the double twisting machine, the yarn winding device, and the special device of the double twisting unit. During the spinning process of the spinning frame, the semi-finished roving or sliver is drafted, twisted, and wound into a spinning machine. The combed sliver and the needle-carding machine combine the sliver, the needle row is drafted to improve the sliver structure, and the roving is further spun into spun yarn on the ring spinning frame, which is the main spinning machine. When the No. 6 bobbin rotates at a speed of 620-2400r/min, the moving clip 1 squeezes the No. 2 fixed clip under the centrifugal force of the fixed weight plate 3, forming the clamping rotation of the rented yarn in the drafting area, resulting in false twist.

The top of the tube has four evenly raised pins that help to twist the sliver above the top (up to the back roller jaws) and shake off impurities that have stuck to the roving. The distance between the lower end of the centrifugal forceps and the front roller forceps should be small, generally about 10 mm. Yarn rental in this area is basically in a twist-free state, so the role of drafting yarn rental mainly occurs in this area.

The total traction ratio of the traction device is 1-1.5, and the use effect is good. For the single-zone card double-apron drafting device, which draws a magnification of 1.1 ~ 1.3, the false-twist tube and needle sleep are not used. 12-26 tex spun yarn is mostly used in card PG2 ring and G, O-ring type wire.

But more than 125 tex of yarn spun on the card, due to large bales, heavy yarn, and the required mass of heavy beads, thus using a straight edge (vertical side) ring and lugs, see Figure 9 26 of this Rings with larger diameters, etc. have dimensions 75, 90, 112 mm, the beads are raised by yarn tension in contact with the underside of the ring. There is a wick oil tank on the inner wall surface of the ring, through the two ends of the ring rope in the wall of the orifice plate and the suction tank turbulent oil to lubricate the sliding surface of the ring of the runway, thereby reducing the friction and wear of the ring and traveler and temperature rise. For wool, hemp, silk, man-made fiber spinning and twisting (including cotton twist) should be used to obtain ring lubrication.

Because of the porous body of the lubricating oil storage chamber, which eliminates the need for two rings and reduces bad oil turbulence, powder metallurgy produced ring oils are now widely used for yarn retention. In addition, the bead ring is also made of nylon, the coefficient of friction, the required mass is even less than half of that of copper under conditions that produce the same yarn tension; annular, but less rigid, lubricated steel still leads the road, so it often only for solving“Yarn wear is a problem”case, for example, high-speed spinning, etc.

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