Spinning frame for yarn production

Abstract

The invention relates to the technical field of textile equipment, and discloses a spinning frame for yarn production. The spinning frame comprises a cradle shell, three pairs of drafting assemblies are arranged in the cradle shell and comprise a first drafting assembly, a second drafting assembly and a third drafting assembly, the first drafting assembly comprises a front leather roller and a front roller, the front leather roller and the front roller movably sleeve one side of the interior of the cradle shell, and the front leather roller is located above the front roller. The surface of theouter ring of a middle leather roller is supported by thrust of a spring, a lower base, a movable rod and a side base to the outer ring of the middle leather roller, so that the outer ring of the middle leather roller is always kept in a flat state; and meanwhile, the gravity action direction of liquid oil is always downward, furthermore, the bottom end of the outer ring of the middle leather roller is kept in a horizontal state when the middle leather roller and a rough yarn are pressed, the middle roller can be always jacked, friction deformation of the middle roller and the middle leatherroller is always changed evenly, and the phenomenon that the middle leather roller sinks due to uneven friction force generated by the middle leather roller and the rough yarn is avoided.

Description

technical field [0001] The invention relates to the technical field of textile equipment, in particular to a spinning frame for yarn production. Background technique [0002] Spinning frame is an important equipment in the yarn spinning process. Its task is to draft, twist and wind the roving into spun yarn. The quality of the spun yarn determines the quality of the yarn. Its main mechanisms include feeding mechanism, drafting mechanism, twisting winding mechanism and winding forming mechanism. Among them, the drafting mechanism adopts the front, middle and rear three-roller form to perform drafting and elongation operations on the roving to adjust the fiber length and uniformity of the sliver. [0003] However, there are still some defects in the use of the spinning frame: in the drafting process, in order to make the drafted sliver more uniform, the top roller needs to provide friction to the roving to control the movement of the roving, but the top roller has been used f...

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Problems solved by technology

[0003] However, there are still some defects in the use of the spinning frame: in the drafting process, in order to make the drafted sliver more uniform, the top roller needs to provide friction to the roving to control the movement of the roving, but the top roller has been used for a long time Finally, the top roller deformed due to long-term uneven pressure and appeared a concave phenomenon, and the uniformity of the friction provided was affected, which may cause yarn breakage; The phenomenon that the roller and the roller are not tightly entwined, resulting in uneven evenness

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