Active unwinding device for double-blocking-edge bobbin of bobbin winder

Abstract

The invention discloses an active unwinding device for a double-blocking-edge bobbin of a bobbin winder. The active unwinding device comprises a guide wire, a small shaft, a bearing, a bearing seat and a pin. The guide wire is mounted at the upper end of the double-blocking-edge bobbin. A bobbin shaft in transition fit with the double-blocking-edge bobbin is arranged inside the double-blocking-edge bobbin. The bearing seat is arranged at the position, on the lower portion of the guide wire, of the double-blocking-edge bobbin, and the bearing is arranged in the bearing seat. The small shaft isfixed to the guide wire through a jackscrew, the small shaft and the inner circle of the bearing are in interference fit, and the outer circle of the bearing and the bearing seat are in interference fit to constitute a guide wire assembly. The bearing seat of the guide wire assembly is connected with the bobbin shaft through the pin and can be inserted into an inner hole of the double-blocking-edge bobbin or taken out of the double-blocking-edge bobbin. The active unwinding device is simple in structure; and the guide wire assembly can rotate around the double-blocking-edge bobbin under the tension effect of yarn for pulling unwinding, friction between the yarn unwound from the double-blocking-edge bobbin and blocking edges is avoided, and the situation of end breaking, or abrading or hairiness increasing of the yarn is not liable to occur.

Description

technical field [0001] The invention belongs to the technical field of spinning equipment, and in particular relates to an active unwinding device for a bobbin with double ribs of a winding machine. Background technique [0002] At present, the yarn feeding bobbins of winding machines are mostly tapered bobbins without ribs, which can directly realize rapid passive unwinding when feeding yarn. In the spinning process, in order to enhance the strength of the cotton yarn, a winding process is required, and the bobbins are generally parallel bobbins with large packages. In order to facilitate transportation, some companies will use bobbins with double ribs to prevent edge collapse. This kind of ribbed bobbin will have great resistance during passive unwinding in the winding process. If the traditional passive unwinding method is used, it will easily cause yarn breakage, wear and hairiness. Contents of the invention [0003] The purpose of the present invention is to overcom...

AI Technical Summary

Problems solved by technology

This kind of bobbin with ribs will have great resistance during passive unwinding in the winding process. If the traditional passive unwinding method is used, it will easily cause yarn breakage, wear and hairiness.

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