Method and device for end re-splitting spinning of bobbiner

Abstract

The invention discloses a method and a device 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 device comprises a draft detection part, a main control unit, a programmable controller, a variable speed controller, a flier, the lower keel and a detector, wherein the lower keel is provided with a bobbin rotating body which is provided with the bobbin; and the successful re-splitting rate is high.

Description

technical field [0001] The invention relates to automatic operation technology and equipment of a roving frame, in particular to a method and a device for re-growth spinning of 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, the existing method and device 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 r...

AI Technical Summary

Problems solved by technology

However, the existing method and device 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, the yarn sliver It is impossible to effectively adhere to the surface of the bobbin flocking part at the moment when the roving frame is started, so the success rate of automatic re-growth is low; The loose ends lead to a large number of flying flowers. These flying flowers fall on the sliver or roving sliver, resulting in a large number of yarn defects, which greatly reduces the yarn output and quality; , first enter the first layer of spinning stage, at this time the lower dragon tendon moves directly upwards, and part of the 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 On the velvet, 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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