Process and device for preparing continuous combined filament yarn

Abstract

The invention belongs to the field of new material processing, and particularly provides a process and a device for preparing continuous combined filaments, which are mainly used for mixed filament processing of thermoplastic resin fibers and reinforced fibers, the processing process is realized by a combined device, and the device consists of a creel, a yarn releasing roller, an air injection diffusion device, a traction roller, a guider and a winding roller, wherein the air injection diffusion device consists of an observation plate, a yarn spreading plate, an air injection device, an air storage device and an air inlet device from top to bottom; by adopting the device and the corresponding process, the continuous combined filament yarn can be prepared, the effect of dispersing fiber bundles into monofilaments is greatly improved after the thermoplastic resin fibers and the reinforced fibers are spread respectively, micron-level mixing of the two continuous fibers can be conveniently and quickly realized, the fiber mixing efficiency of the thermoplastic resin fibers and the reinforced fibers is improved, and the production cost is reduced. And the interface distribution of the resin fiber and the reinforced fiber in the combined filament yarn is further optimized.

Description

technical field [0001] The invention belongs to the field of new material processing, and in particular relates to a process and a device for preparing continuous mixed fiber filaments. Background technique [0002] Fiber-reinforced thermoplastic composites have the advantages of high toughness, short molding cycle, and easy secondary molding. They are an important development direction of my country's composite material industry in the future. The impregnation methods of fiber-reinforced thermoplastic composites can be roughly divided into pre-impregnation method and fiber mixing method. The fiber mixing method is to mix thermoplastic polymer fibers and reinforcing fibers together to form mixed fiber bundles (mixed filaments) or mixed yarns. This kind of mixed yarn is suitable for weaving and forming, and is mostly used for forming composite products with complex shapes. The advantages of the above method are that the resin content is easy to control, the fibers can be full...

AI Technical Summary

Problems solved by technology

[0004] The invention patent application with the application number 201510587586.0 discloses a fiber blending device. The fiber blending process is completed by electrospinning. The disadvantage of this method is that it needs to be equipped with 5Kv~30Kv high-voltage power supply, the screw running speed is only 0.1cm / min~5cm / min, which is difficult to meet the needs of mass production

The invention patent application with the application number of 201810630110.4 discloses a combined device for preparing super-imitation cotton polyester air-sprayed deformed mixed fiber yarn. In this method, polyester yarn and nylon yarn pass through an annular cavity to form random intertwined mixed fiber , the disadvantage of this method is that the spreading objects are limited, the spreading effect is rigid and difficult to adjust, and it is difficult to be widely popularized and applied. Therefore, a new continuous mixed fiber preparation process and device are urgently needed to fill the gap in this field

Images