Two-shaft fiber interactive equal-feed composite spinning device, process and application

Abstract

The invention relates to a double-shafting fiber interactive equal feeding composite spinning device, technology and application. The device comprises an equal feeding mechanism, a conversion mechanism, and a fiber strand shifting mechanism. The technology for the composite spinning is that endless tows or yarns are a shafting, circumambulate through an upper guide wire and obtain the equal feeding or a trace amount of the equal feeding through a holding roller pair, after that, the endless tows or yarns are randomly or periodically conversed around or move slowly to feed at a jaw of a former top roller through a lower guide wire controlled by a conversion cylinder, and after leaving the jaw of the former top roller, the endless tows or yarns and short fiber strands are gathered to form a double-shafting conversion equal feeding wrapping and core-spun composite spinning under the twisting action, wherein the short fiber strands of another shafting can move around per se. The method is unique and can be implemented easily; and the corresponding device is concise and convenient to install, which can be used for a synchronous conversion equal feeding wrapping and core-spun composite spinning of double-shafting fiber of a ring throstle.

Description

technical field [0001] The invention relates to an iso-feed wrapping composite spinning device for synchronous displacement of biaxial fibers in the field of ring spinning and a composite spinning process using the device. Background technique [0002] Wrapped yarn fabrics have better appearance, feel and comfort, so this kind of fabrics are more popular in the market. Because the fancy effect of wrapped yarn depends on the equal feeding of filament bundles or yarns, traditional wrapped yarns are all under-fed, that is, the filament bundles are under tension. Moreover, the fluctuation of filament tension in composite spinning will seriously affect the structure, quality and appearance of the yarn, especially in low-tension or even no-tension equal-feed output. Therefore, reducing the fluctuation of filament tension in a simple way has always been for Difficulties in this spinning system. Obviously, the key technology of spinning this type of wrapped composite yarn on the t...

AI Technical Summary

Problems solved by technology

Although some of these devices are simple in structure and easy to operate, due to the high tension when the filament yarn is fed, it is impossible to achieve equal feeding.

[0004] The invention patent applied and published by the inventor of this patent, such as a wave-absorbing high-elastic yarn and its production equipment and production method (patent application number: 201110242760.X), is directly obtained by using the holding roller in contact with the front roller. The method is effective and practical, but it cannot carry out the intermittent transposition and movement of the filaments; a method for preparing high-elastic composite yarns with non-equal convergence points (patent application number: 201110242100.1), which uses a gripping roller in contact with the front roller It is effective and practical to directly obtain the way of feeding elastic yarns, etc., but it is impossible to perform intermittent fast transposition and movement of elastic yarns; a triaxial symmetrical composite spinning process and equipment for high elastic composite yarns (patent application No. : 201110242006.6), it adopts the holding roller in contact with the front roller and winds it to obtain the feeding method for the elastic yarn, etc., the tension is more stable, but it cannot perform the left and right intermittent transposition and movement of the elastic yarn

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