Tension lifter for doubling and twisting machine

Abstract

The invention discloses a tension lifter for a doubling and twisting machine. The tension lifter comprises a first twist barrel upper end plate, wherein a support is soldered at the center of the outer surface of the top end of the first twist barrel upper end plate; four spacing racks are soldered on the outer surface, close to the support, of the top end of the first twist barrel upper end plate, and are distributed at equal distance; spacing grooves are formed inside the spacing racks; and a motor is fixedly arranged at the center inside the support through a bolt. The tension lifter for adoubling and twisting machine has balanced tension, can meet the requirement for producing gray yarns with different diameters, the abnormal coils can be improved, the quality can be promoted, the coiling rate is reduced to 2.2 percent from 23.25 percent; balancing the tension stability for degrading an air ring by the first twist barrel, so that yarn feeding tension is balanced, the labor efficiency is improved; and sorted charging according to the diameter of gray yarns is not required on site, and frequency for re-threading is reduced. The tension lifter is simple in structure, convenient to detach and move and easy to operate, and brings a better application prospect.

Description

technical field [0001] The invention relates to the field of glass fiber doubling and twisting yarns, in particular to a tension raising frame of a doubling and twisting machine. Background technique [0002] The process of glass fiber double-twisting yarn is as follows: firstly, each primary twisting drum decomposes the balloon, and a glass fiber single yarn is extended upwards, and at least two glass fiber single yarns converge from the yarn guide wheel closest to the double twisting side The doubling device and the overfeeding roller finally reach the double-twisting spindle equipment to twist into a double-twisted glass fiber yarn. The loop yarn is the "short board" that affects the output and quality of the double-twist. The uneven tension of each yarn seriously affects the production efficiency and the quality of doubling and twisting yarns. When loops occur in a single yarn in the process of doubling, a certain tension can be given to make the loops disappear, and a p...

AI Technical Summary

Problems solved by technology

[0003] The existing glass fiber doubling and twisting device has certain disadvantages in use, because each primary twist bobbin decomposes the balloon, and a single glass fiber yarn is drawn upward, and at least two glass fiber single yarns pass through the doubling device from the separation Convergence on the yarn guide wheel closest to the double-twist side, the loop yarn is the main factor affecting the output and quality of the double-twisting yarn. The coiling phenomenon occurs in the tow. In addition, different diameters of primary twist bobbins require different tensions. During high-twisting operation, an iron shaft is used to pass through a bobbin that is wound and unspun and placed on a frame. According to the required process, put multiple de-spun yarns individually into the frame for plying, put the thread ends of multiple yarns into the yarn guide hook, enter the roller through the yarn guide rod, and then wind on the high-speed rotating spindle bobbin , to complete a complete action cycle, its disadvantages are thread breakage and yarn change, because when replacing the unspun yarn, the diameter of the unspun yarn should not be too large, the package volume is small, and the two ends of the hard frame are connected with the unspun yarn. The yarn bobbins rub against each other, and the pulling force is relatively large, resulting in an increase in hairiness. Therefore, we propose a tension lifting frame for a twisting machine

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