Method for end re-splitting spinning of bobbiner

Abstract

The invention discloses a method for end re-splitting spinning of a bobbiner. The method comprises the following steps: 1, when a lower keel moves to an end splitting position, controlling a drafter motor and a lower keel motor to stop and controlling a flier motor and a bobbin rotating body motor to rotate and to stop after rotating in an opposite direction of a normal spinning direction; 2, controlling the flier motor and the bobbin rotating body motor to rotate and to stop after rotating in the same direction as normal spinning; and 3, entering a normal spinning state and controlling a lower keel to rotate, wherein the lower keel moves first in a direction away from an upper keel and in a direction close to the upper keel when rough yarns cover a flocking part of the bobbin, and the drafter motor, the bobbin rotating body motor and the flier motor operate according to the direction and speed for normal spinning to complete re-splitting operation. The successful re-splitting rate of the invention is high.

Description

technical field [0001] The invention relates to the automatic operation technology of a roving frame, in particular to a method for regenerating yarn on a roving frame. Background technique [0002] During the normal spinning process of the roving frame in the textile industry, it needs to be shut down for doffing after the yarn is full, and then restarted for new spinning. In the past, artificial threading was used, that is, the yarn end was manually attached to the flocking part of the bobbin. With the advancement of science and technology, practitioners in the textile industry have continuously developed automatic operation equipment suitable for the doffing process of the roving frame, and designed an automatic method for re-growth. However, in the existing method for automatic re-growth of the roving frame, when the re-growth is started, the spindle speed runs at full speed according to the process, and because the flocking part of the roving bobbin is relatively narro...

AI Technical Summary

Problems solved by technology

However, in the existing method for automatic re-growth of the roving frame, when the re-growth is started, the spindle speed runs at full speed according to the process, and because the flocking part of the roving bobbin is relatively narrow, it is impossible for the yarn The moment the roving frame is started, it is effectively adhered to the surface of the flocking part of the bobbin, so the success rate of automatic re-growth is low; in addition, after the start-up, due to the high speed of the spindle, some spindles will have loose ends. , resulting in a large number of flying flowers, these flying flowers fall on the sliver or roving sliver, resulting in a large number of yarn defects, greatly reducing the yield and quality of the yarn; moreover, after spinning the yarn, when entering the normal spinning process, first enter the In the first layer of spinning, the lower dragon tendon moves upwards directly, and some flocking will be exposed on the flocking part. When the second layer of spinning is performed, the second layer of yarn will stick to the exposed flocking. The yarn stuck to the exposed flocking can only be removed when entering the next process, resulting in waste of yarn

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