Carbon fiber grooved roller sizing device

Abstract

The invention provides a carbon fiber grooved roller sizing device which comprises a size tank fixed on a size tank fixing plate, a flow controller sequentially communicating the bottom of the size tank through a pipeline and a size outgoing nozzle with a gate valve. A sizing grooved roller with a groove in the surface is arranged below the size outgoing nozzle, the size outgoing nozzle and the groove of the sizing grooved roller are arranged oppositely, and a reflux tank is arranged below the sizing grooved roller; a carbon fiber bundle passes the groove of the grooved roller, the flow controller can be adjusted to control flow of the size outgoing nozzle, the carbon fiber bundle is enabled to be locally sized at the sizing grooved roller, and excessive size enters the size tank through the reflux tank for recycling. By the carbon fiber grooved roller sizing device, sizing quantity of the carbon fiber bundle can be controlled effectively, bundling performance of the carbon fiber bundle is improved, and the defect that conventional dipping sizing methods are high in size consumption and cost and uncontrollable in sizing quantity is overcome; the arc groove plays a role in bundling the carbon fiber bundle in the process of sizing, so that carbon fiber is sized more uniformly.

Description

technical field [0001] The invention relates to the field of carbon fiber manufacturing, in particular to a sizing device that can effectively control the sizing amount of carbon fiber tow, make the sizing amount of carbon fiber more uniform, increase the bundling performance of the carbon fiber tow after sizing, and reduce the generation of hairs during the sizing process. Background technique [0002] Carbon fiber is often used as a reinforcing material for composite materials because of its high specific strength, high specific modulus, high temperature resistance, corrosion resistance, fatigue resistance, electrical conductivity and heat transfer performance. Widely used in aerospace, national defense and other fields. [0003] Sizing is an important process in the carbon fiber production line. After sizing, a layer of active protective film will be formed on the surface of the carbon fiber to prevent the moisture and dust in the air from damaging the surface, and reduce...

AI Technical Summary

Problems solved by technology

The sizing amount of this sizing method has a great relationship with the speed of the carbon fiber wire. When the speed changes, the sizing amount changes accordingly, and the sizing amount cannot be actively controlled.

[0006] 2. Large slurry consumption

[0007] 3. Squeezing rollers are prone to sticking

However, due to the high viscosity of the active ingredients in the slurry, the carbon fiber is easy to stick to the surface of the press roller, resulting in the phenomenon of carbon fiber sticking. In severe cases, the press roller must be shut down to clean it, which affects the continuous production of carbon fiber, and the quality of carbon fiber will be reduced. dropped

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