Rotor spinning melange yarn forming method and device and product

Abstract

The invention discloses a rotor spinning melange yarn forming method and device and product. On a rotor spinning machine, two or more fiber strips enter a feeding mechanism through a striping gate and a horn mouth, the feeding mechanism contains at least two independently controlled feeding rollers and can control the independent feeding of at least two fiber strips, different fiber strips are of different colors, or of different color combinations, or of different fiber components, the feeding speed of each fiber strip is controllable, the feeding can be conducted at different time sections, and the feeding speeds of all the fiber strips are independently changeable or simultaneously changeable; through the implement of continuous constant-speed feeding or segmentation variable speed feeding of different fiber strips, continuous constant feeding or segmentation variable feeding of the fiber strips is controlled; the fed fiber strips break away from a combing roller, are transferred to a delivery pipe, and then enter a spinning cup depending on the centrifugal force of the combing roller and the action of added air flow after the opening and carding actions of the combing roller; single fibers of different components are mixed, condensed and twisted in the spinning cup to form rotor spinning melange yarn blended by monochrome or polychromatic fiber, or with segmentation color effect, uniform linear density or changing linear density.

Description

technical field [0001] The invention belongs to the field of novel spinning and forming processing, and relates to a rotor spinning mixed-color yarn forming method, and corresponding devices and products suitable for the yarn forming method of the invention. Background technique [0002] Segment color melange yarn is a yarn whose yarn color is intermittently distributed in the longitudinal direction of the yarn. At present, there are two ways to produce segmented color mixed yarn. One is to dye the yarn in sections along the longitudinal direction by dyeing method, which has many procedures, high cost and poor color fastness; the other is to use ring spinning method. , this method currently has three-roller method and four-roller method. The three-roller method uses the three-roller drafting mechanism of the spinning frame with simple changes. The main core yarn is fed from the middle roller of the apron, and the auxiliary yarn is fed from the rear roller. The auxiliary yar...

AI Technical Summary

Problems solved by technology

This method has weak control over the floating fibers in the drafting area after the drafting mechanism. During the production process, when the fiber strips of group A and group B are alternately changed, weak joints are likely to occur, which will have a certain impact on the evenness and strength of the yarn. Negative impact

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