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Continuous tow dispersing device

A technology of dispersing device and continuous fiber, applied in fiber processing, fiber combing, transportation and packaging, etc., can solve the problems of high requirement of mechanical synergy, broken wire surface, many mechanical parts, etc., to achieve uniform distribution and distribution. The effect of fast wire speed and simple device structure

Inactive Publication Date: 2006-08-02
HUNAN UNIV
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Problems solved by technology

Although this method can realize the dispersion of fiber bundles, it has many mechanical parts, high mechanical coordination requirements, and inconvenient use. In addition, because the diameter of the monofilament in the fiber bundle is very small, such as the diameter of the carbon fiber monofilament is about 7 μm, mechanical separation During the process, under the action of mechanical force, it is easy to cause broken wire and damage to the wire surface

Method used

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Examples

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Embodiment Construction

[0025] See figure 1 , The device splits the 14K carbon fiber bundle 16, and the fiber width is dispersed from 6mm to about 180-220mm; the carbon fiber bundle surface density before splitting is 0.5mg / cm 2 , The areal density of single ribbon after splitting is 20μg / cm 2 , The threading speed is 0.6m / min.

[0026] See figure 2 , The width of the inlet 10 of the wire dividing cavity 12 of the air separator 2 is 5-10mm, the width of the outlet 11 is 120mm, and the diameter of the air hole 13 on the wire dividing plate 14 is 2-6mm (the pores of different diameters can be arranged from a gradient), The porosity (the ratio of the area of ​​the top surface of the dividing plate to the area of ​​the vent holes on the top surface) is about 40%, and the air inlet 8 sends 0.6-0.9Mpa air to disperse the 6mm wide carbon fiber bundle to 80-100mm tow.

[0027] Referring to Figures 3 to 5, the comber 5 is fed with dry air at 40°C-60°C from the air inlet 2, with an air inlet pressure of 0.1-0.4M...

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Abstract

The continuous tow dispersing device includes unwinding roller, winding roller and tightening roller, as well as air separator and carding unit set successively between the unwinding roller and the winding roller. The air separator has a hollow barrel, and a tow separating cavity in the upper port of the hollow barrel with a tow separating plate with ventilating holes in the bottom and a closing cover plate in the top. The carding unit has a box; inside the box, there are horizontal upper plate with at least two parallel air slots, lower plate with air holes and carding groove between the upper plate and the lower plate; and on the box, there is mechanical vibrator. The device has simple structure, no need of outer power, tow dispersing action completed with air pressure, good tow dispersing effect, low tow damage and other advantages.

Description

Technical field [0001] The present invention relates to composite material processing equipment, and further refers to a device capable of fully dispersing continuous fiber bundles. Background technique [0002] At present, the dispersion technology of fiber bundles is mainly mechanical combing, that is, the fiber bundles are dispersed through the action of mechanical force, such as US Pat. No. 6,049,956. Although this method can realize the dispersion of fiber bundles, it has many equipment and mechanical parts, high requirements for mechanical coordination, and inconvenience to use. In addition, because the monofilament diameter in the fiber bundle is very small, such as carbon fiber monofilament diameter of about 7μm, mechanical splitting In the process, under the action of mechanical force, it is easy to cause broken wire and wire surface damage. Summary of the invention [0003] The technical problem to be solved by the present invention is that in view of the defects of th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D01G3/00B65H51/005
CPCD02J1/18
Inventor 李劲陈振华严红革李志光李伟
Owner HUNAN UNIV
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