Manufacturing method of composite core with synchronous pulling and winding and one-step solidification moulding and production machine unit

Abstract

The invention discloses a manufacturing method of a composite core with synchronous pulling and winding and one-step solidification moulding and a production machine unit. The production machine unit comprises a yarn rack (1), a yarn dividing plate (2), a resin groove (3) capable of lifting, a winder (4), a preforming device (5), a mould (6), a positioning rack (7), a post-treatment baking oven (8), a resin reaction action detection instrument (9) and a length metering instrument (10). Compared with a traditional manufacturing device and a secondary forming method, the invention is more advanced, scientific and economic, and the composite core produced by using the invention has higher safety and lower running cost.

Description

technical field [0001] The invention relates to a production method and equipment for manufacturing a carbon fiber composite material cable core (hereinafter referred to as "composite core"). Background technique [0002] At present, the special cables for power transmission and distribution in my country are still conventional steel-cored aluminum stranded wires, which have the disadvantages of relatively large weight, relatively low operating temperature, easy to rust, easy to produce electrolytic reactions with aluminum conductors or other components, and easy to form sag. Since the strength of the composite core is high enough, aluminum is no longer required to bear the force, and the conductive aluminum can be soft aluminum in an annealed state, and its conductivity can exceed 63% IACS. The power transmission and distribution cable made of composite core has an aluminum conductor cross-sectional area that is 29% larger than that of the steel-reinforced aluminum stranded...

AI Technical Summary

Problems solved by technology

[0006] 2. For the composite core manufactured by the traditional secondary molding method, the direction of the fibers is 0 degrees, and there is no constraint in the radial direction

Therefore, when the composite core is subjected to bending, torsion, compression and other stresses, it is very easy to burst

[0007] 3. In the traditional production unit, the volume of the resin tank is fixed, which is both large and deep, and the resin tank part and the whole device are welded dead

The disadvantage is that the volume of the resin tank is too large, and the amount of resin added exceeds dozens of times the consumption per unit time, resulting in a large amount of old glue, which will affect the stability of the system operation

Secondly, during the fiber impregnation operation, the old glue cannot be removed from the resin tank, and the resin tank can only be disassembled for cleaning after the operation is terminated

[0008] 4. Two independent molds are used for secondary molding. When placing the mold before operation, it is necessary to ensure that the two mold holes with different diameters remain concentric. Special tooling is required, which also increases uncertain factors

[0009] 5. The traditional composite core production unit has no measures to ensure that the fiber is on the horizontal line and the center line from the mold inlet through the mold outlet to the clamping place, and there are uncertain factors in the concentricity of the composite core inner core and the cladding layer

Due to the professional limitations of most employees, traditional production units are not considered at all, and it is entirely based on experience and feelings, which will cause uncertain factors to the long-term stable operation of the unit.

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