Buncher of drawing frame

Abstract

The invention discloses a buncher of a drawing frame. The buncher of the drawing frame comprises a buncher body which is provided with a buncher inlet, a buncher outlet and a buncher drawing port, wherein the buncher outlet is oval; the buncher drawing port is circularly arc; and the shoulder part of the buncher is an arc curved surface. With the adoption of the buncher of the drawing frame, a web is softly drawn by the buncher, the resistance of the buncher to the web is greatly reduced, fibers can pass through the buncher smoothly, phenomena of cotton fiber accumulation and return are reduced, and yarn evenness CV and 100 km yarn defect level are greatly improved.

Description

technical field [0001] The invention relates to a bundler of a draw frame, which belongs to the technical field of textile accessories. Background technique [0002] When the draw frame is running, the loose and high-speed cotton web is difficult to enter the vertically placed bell mouth smoothly due to inertia, especially when the front roller speed is increased to above 1200 rpm, most of the cotton web rushes through the bell mouth The upper end is separated from the mother body, coupled with the influence of the wind force of the front air suction port, this situation is even worse. In order to overcome this phenomenon, a buncher and a compacting roller are installed between the outlet of the front roller of the draw frame and the bell mouth, which can reduce the dissipation of fibers, make the produced sliver more compact, and increase the thickness of the can. capacity. However, during the production process, especially when producing regenerated cellulose fibers suc...

AI Technical Summary

Problems solved by technology

However, during the production process, especially when producing regenerated cellulose fibers such as Tencel, Modal, etc., the air volume of the front suction port makes the fibers easy to be sucked away at the rear edge of the cotton collector, resulting in thin strips; Severe accumulation and returning of flowers at the leading edge, and serious flower absorption by the front top roller, which are easily brought into the sliver and cause yarn defects

Fig. 1 and Fig. 2 show the draw frame bundler in the prior art: since the inlet and outlet are relatively small, and the outlet and the inlet are close to right angles, the output cotton web is gathered violently by the bundler, and the cotton web becomes smaller. thicker, correspondingly the resistance between the bundler and the fiber increases, and some fibers cannot pass through the bundler smoothly, causing the front edge of the bundler to return to flower

Images