Polyhedron forming mold and technology based on VARI forming technology

Abstract

The invention discloses a polyhedral forming mold and process based on a VARI forming process, the polyhedral forming mold based on the VARI forming process comprises a first template and a U-shaped plate arranged on the first template, and the U-shaped plate and the first template jointly define a working space for vacuum infusion. The polyhedron has the beneficial effects that the polyhedron formed through the VARI process is integrally formed, and compared with a polyhedron formed through glue joint, bolt connection and other modes, the polyhedron has higher connection strength; besides, the layering design and the glue injection pipeline design adopted by the polyhedron forming process based on the VARI forming process ensure that the resin can uniformly impregnate each surface of the polyhedron and the layering junction R corner connected with each surface in the process of impregnating the polyhedron fiber layer, so that the resin is prevented from forming a rapid channel and a wrapping road at the layering junction R corner, and the service life of the resin is prolonged. Therefore, the problem that a polyhedral part is difficult to form by adopting a VARI process is solved, and the product quality is improved.

Description

technical field [0001] The invention relates to the field of moulds, in particular to a polyhedron molding die and technology based on VARI molding technology. Background technique [0002] As attached to the manual Figure 9 As shown, the polyhedral connector is a commonly used connector in steel structures, and is mainly used to connect several steel beams. [0003] Vacuum-assisted resin infusion molding (VARI) process is a new type of molding process for large-scale composite parts developed on the basis of RTM technology. Compared with RTM, RFI and other molding processes, it has high performance and low cost. Features such as non-autoclave, very suitable for manufacturing large parts. [0004] At present, the manufacture of polyhedral connectors is usually produced by mold injection molding. However, due to the large number of connector faces, most of the molds used are monolithic structures, which brings great difficulties to the subsequent demoulding work. [0005] ...

AI Technical Summary

Problems solved by technology

[0007] In order to solve the problem that the existing polyhedral connectors are difficult to demold due to integral mold manufacturing, the present invention proposes a polyhedron forming mold based on the VARI molding process, which includes a first template and a U-shaped mold set on the first template. plate, the U-shaped plate and the first template together define a working space for vacuum infusion

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