Large tow carbon fiber layer thinning treatment device

Abstract

The invention relates to a large tow carbon fiber layer thinning treatment device which is characterized by comprising a frame, a variable frequency motor, a plurality of power shafts and a plurality of flower shafts, wherein the variable frequency motor is arranged on the frame; the power shafts are arranged on the frame through a shaft stool; the flower shafts are arranged above the frame and correspond to the power shafts; a crank sliding block mechanism formed by a crank disc, a connecting rod and a first sliding block is arranged between each power shaft and the corresponding flower shaft; a bracket is fixedly arranged at the upper end of the frame; the bracket is connected with the first sliding blocks through a linear guide rail pair; the crank discs are fixedly arranged at the end parts of the corresponding power shafts; each flower shaft is formed by disks at both ends, a plurality of metal rods which are fixedly arranged on the disks at both the ends in a mode of uniformly dividing the same circle, and projecting shafts coaxially and fixedly arranged outside the disks at both the ends; the projecting shafts are rotationally arranged on the corresponding first sliding blocks; a transmission mechanism is arranged between the variable frequency motor and the adjacent power shaft; and synchronous transmission mechanisms are arranged among the power shafts. By the layer thinning treatment device, large tows of carbon fibers can be alternately and vertically wound on the flower shafts; and after the motor is started, the flower shafts drive the large tows to alternately and vertically vibrate, so that the moving large tows are subjected to layer thinning.

Description

technical field [0001] The invention relates to a device for thinning large tow carbon fibers. Background technique [0002] Carbon fiber is a new composite material with excellent mechanical properties. Among various carbon fibers, large tow carbon fibers above 12K are relatively cheap, but their internal wettability is poor, and the monofilament is prone to defects such as voids, which appear during the forming process. The possibility of fiber bending and layup angle dislocation increases, resulting in mechanical properties that cannot meet the structural design requirements. The mechanical properties and internal wettability of large tow carbon fibers can be improved by thin layer treatment. At present, the research on the thin-layer technology of large tow mainly includes ultrasonic method and compressed air blowing method. Thinning is achieved by blowing off the fiber bundles. The above two methods are still in the theoretical research stage, and have not yet formed...

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Problems solved by technology

The above two methods are still in the stage of theoretical research and have not yet formed industrialized equipment.

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