Filament tension control device for filament short-fiber composite spinning

Abstract

The invention provides a filament tension control device for filament short-fiber composite spinning in spinning production, comprising a base rack which is crossed on a spinning frame cradle, wherein the base rack is provided with an upper tension roller, a movable tension roller and a positioning tension roller along the length direction; the three tension rollers are respectively combined with the base rack via screws and nuts at the tail parts; the movable tension roller is arranged in a curved penetration slot of the base rack, and the relative positions between the three rollers can be changed by adjusting the position of the movable tension roller in the curved penetration slot so as to change the warp angles of the filament to the three rollers. The filament tension control device is stable in tension of the filament and free of influence to the mechanical vibration and the workshop flying on the tension of the filament; and the adjustment of the filament tension is convenient and reliable and the use is convenient so that the produced filament short-fiber composite yarn is stable in structure and consistent in performance.

Description

technical field [0001] The invention relates to a yarn tension control device used in spinning engineering, in particular to a filament tension control device used in the textile industry when performing composite spinning of filament and short fiber on a ring spinning frame. Background technique [0002] There is a filament staple fiber composite spinning project in our country's national science and technology support plan project, which involves a technology of how to control the tension of the filament to make it more stable, and can adjust the tension arbitrarily with different products. General manufacturers use the traditional commercially available gravity yarn tension control device, that is, a device that uses a tension sheet or spring pressure to control the tension of the filament, see figure 1 . It works as follows: [0003] The vertical shaft a4 is fixed on the frame of the spinning frame, the upper and lower tension discs a2 and a1, and the tension piece a3 ...

AI Technical Summary

Problems solved by technology

[0004] 1. The filament will move between the upper and lower tension discs, because it is placed obliquely, and different positions have immobile pressure, so the tension on the filament will often change

[0005] 2. Vibration is inevitable when the machine is running. During the vibration, the tension piece a3 has a slight up and down displacement, which means that the pressure on the filament a5 cannot be stabilized.

[0007] The above-mentioned off-the-shelf tension control device may be suitable for yarns with thicker diameters, and its tension fluctuation will not affect the quality of yarn winding, but in the production of filament and short fiber composite spinning, the process requires filament tension It must be relatively stable and reliable, and the above-mentioned tension sheet (or spring) pressurization mechanism is obviously not competent

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