Foaming device and continuous production line and production method of fiber reinforced foaming composite material

Abstract

The invention relates to a foaming device and continuous production line and production method of fiber reinforced foaming composite material. The continuous production line comprises a distribution frame, a glue injection box, a foaming device, a forming die and a traction device, wherein the distribution frame is used for enabling fiber material to be spatially distributed according to design requirements; the glue injection box comprises infiltration channels, glue injection channels and a discharging channel; a plurality of infiltration channels and glue injection channels are arranged onthe glue injection box; the foaming device is arranged in a tunnel structure; one end of the foaming device communicates with the glue injection box while the other end of the foaming device communicates with the forming die; an air supply device is arranged on the side, close to the foaming device, of the glue injection box; and a heating device is arranged on the forming die. The fiber materialis infiltrated by liquid base material injected into the infiltration channels through the glue injection channels while the fiber material passes through the infiltration channels to become a composite material precursor, after passing through the discharging channel the composite material precursor enters the foaming device for pre-foaming and then enters the forming die for complete foaming andcuring or setting so as to form the final composite material product. Different fibers and / or different liquid base materials can be infiltrated in different infiltration channels to form different composite material precursors, so that different parts of the finally formed composite material have different material compositions, different functions and different performances.

Description

technical field [0001] The invention relates to the technical field of pultrusion molding of composite materials, in particular to a foaming device, a continuous production line and a production method of fiber-reinforced foamed composite materials. Background technique [0002] Composite material is a material with obvious phase separation characteristics formed by mixing two or more materials. Its shape and performance are different from any one of them. reinforcement material. Usually composite refers to the material in the final form after forming, and the material in the form before the final forming after the matrix material and the reinforcement material is mixed is called the composite material precursor. [0003] Continuous fiber-reinforced foam composites can not only give full play to the strength advantages of fibers, but also reduce the density of composite materials. Building floors and maintenance structures, plank slabs and more. Patent (Application No.: 2...

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Problems solved by technology

Patent (Application No.: 200610103934.3) discloses a glass fiber reinforced polyurethane composite sleeper and its manufacturing equipment and manufacturing method, but the method used in this process is to spray the liquid matrix material, that is, polyurethane resin, onto the glass fiber. Infiltrate the glass fiber to form a composite material precursor, and then let the composite material precursor enter the drying tunnel with the mold to solidify into a composite material; this method is similar to the process of continuous plate free foaming, and there are several problems that cannot be solved: 1. Due to only relying on The composite material precursor freely foams and fills the mold cavity in the forming mold to realize the distribution of fibers in the composite material, and the fibers cannot be positioned according to the designed spatial position, which makes it impossible to design the distribution position of the fibers according to the stress distribution to maximize the 2. Due to the method of spraying liquid matrix material onto the fiber to infiltrate the fiber, it is difficult to quickly soak the fiber, which will affect the interface between the matrix material and the fiber material Intensity, the final effect is fully stretched, it is difficult to achieve controllable distribution, and the thickness of the manufactured product is limited. At the same time, there is no special foaming device in the prior art to perform controllable pre-foaming of the product, and the foaming is generally completed directly in the molding die And the process of shaping makes it difficult to realize continuous production. The above reasons restrict the performance of this composite material; at the same time, this method is also difficult to quickly soak a large number of fibers at one time, so it is difficult to manufacture large-sized composite materials; 3 .Mould complex, large investment

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