Continuous ultrathin unidirectional tape pre-impregnation machine based on thermoplastic resin prepreg

Abstract

The invention relates to a continuous ultrathin unidirectional tape pre-impregnation machine based on thermoplastic resin prepreg. The continuous ultrathin unidirectional tape pre-impregnation machinecomprises a fiber cylinder, a fiber traction device, a fiber splitting device, an impregnation tank device, a first detection device, a preheating box, a drying box, a driving device, a high-temperature box, a hot-pressing device and a main control unit, wherein the fiber cylinder is used for containing carbon fibers; the fiber traction device is connected with the fiber cylinder and is used forguiding the carbon fibers to move forwards; the fiber splitting device is connected with the fiber traction device and is used for expanding the carbon fibers to a preset thickness; and the impregnation tank device is connected with the fiber splitting device and is used for impregnating the carbon fibers with resin. According to the continuous ultrathin unidirectional tape pre-impregnation machine, the main control unit is used for adjusting the temperature of the preheating box according to the uniformity of the carbon fibers obtained by the first detection device and adjusting the pressureof the hot-pressing device according to the thickness of the carbon fibers obtained by the first detection device, so that the thickness of the produced prepreg meets a preset standard.

Description

technical field [0001] The invention relates to the field of prepreg preparation, in particular to a continuous ultra-thin unidirectional tape prepreg machine based on thermoplastic resin prepreg. Background technique [0002] Prepreg is a resin matrix impregnated with continuous fibers or fabrics under strictly controlled conditions to make a composition of resin matrix and reinforcement, and is an intermediate material for manufacturing composite materials. There are two kinds of prepreg preparation methods: dry method and wet method. The dry method is divided into powder method and hot melt resin method (the latter is also called hot melt method). Powder prepreg refers to a composite in which the resin powder is attached to the fiber and partially melted to form a discontinuous resin and the fiber is not fully saturated by the resin. In the application field of composite materials, the conversion of prepregs into structural parts mostly adopts the lay-up method. The mo...

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Problems solved by technology

[0004] For this reason, the present invention provides a continuous ultra-thin unidirectional tape prepreg machine based on thermoplastic resin prepreg, which can solve the technical problem that the thickness of prepreg is difficult to control in production

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