Forming mould and method of carbon fiber rim

Abstract

The invention discloses a forming mould of a carbon fiber rim. The carbon fiber rim is integrally formed by a rim body, a first wheel flange, a second wheel flange, a spoke and a wheel installing disk. The forming mould comprises an inner mould core, an upper mould, a lower mould, an inner core and at least two side moulds, wherein the inner mould core and the lower mould are locked together to form a cavity of the second wheel flange, the spoke and the wheel installing disk; at least two side moulds form a cylinder in a surrounding manner for forming the outer surface of the rim body; the lower parts of the side moulds are installed on the lower mould; the inner core for forming the inner surface of the rim body is installed inside the cylinder; the upper mould for forming the first wheel flange is installed on the upper parts of the side moulds. The invention further discloses a forming method of the carbon fiber rim. The formed carbon fiber rim is firm in structure, higher in overall strength and relatively high in precision of an assembly size, and relatively high in roundness of the rim body and flatness of the wheel installing disk.

Description

technical field [0001] The invention relates to the technical field of carbon fiber rim molding, in particular to a molding die and a molding method for a carbon fiber rim. Background technique [0002] In the prior art, the wheel rim is generally formed by integral casting or die-casting of aluminum alloy, and the mold used is composed of no less than two side modules and upper and lower molds. The upper mold is provided with a pouring port or a die-casting port, and pours or die-casts molten aluminum alloy into the mould. After cooling, it is unmoulded and then trimmed. Aluminum alloy rims have the characteristics of good heat dissipation, light weight and high precision. [0003] However, aluminum alloy rims are still heavy in weight and insufficient in strength and rigidity. The carbon fiber composite rim has higher strength and higher safety, higher rigidity and better handling, lower thermal expansion coefficient, lighter weight and power saving, smaller moment of i...

AI Technical Summary

Problems solved by technology

First, the material of the air bag is too soft to precisely form the inner surface of the mounting plate that meets the assembly size accuracy and flatness requirements, and cannot meet the assembly requirements of the wheel

Two, the material of the air bag is too soft to compact the joints between the spokes and the rim body, the spokes themselves, the joints between the spokes and the mounting plate, and the mounting plate itself, where the stress and shape are complex, and the internal structure cannot be solid and uniform The shape cannot be completely symmetrical and uniform, so that the internal carbon fiber and resin structure is loose, air holes, glue accumulation, lack of glue, etc., which cannot meet the strength requirements; moreover, the weight is unevenly distributed in these parts, which affects the dynamic balance of the rim and affects the Vehicle stability, handling, uneven tire wear, and potential safety hazards

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