Flanging mould, assembling mould, and paving method and moulding method of moulding material

Abstract

The invention provides a flanging mould, an assembling mould, a paving method and a moulding method of a moulding material. The flanging mould comprises a unibody mould surface, the mould surface comprises a sharp embossment, and the mould surface is divided by the climax of the sharp embossment into a first curved surface and a second curved surface. During the moulding process, the first curved surface is laminated with the film-forming material of the turn-up part of the external flanging so as to form the shape of the turn-up part; and the second curved surface is laminated with the film forming materials of partial web body and internal flanging. A combination of two flanging moulds and a plate mould is adopted so as to integrally forming the external flanging, web body, and internal flanging. The problem that the flanging angle of an I-shaped web, which is flanged manually, is not accord with the design map is avoided. Moreover, the defects such as foams, layering, and bright spots in the corner are reduced.

Description

technical field [0001] The invention relates to the technical field of fan blade manufacturing, in particular to a flanging mold for an I-shaped web of a fan blade, a combined mold, a method for laying molding materials and a molding method. Background technique [0002] In fan blades, the web is one of the main load-bearing structures. At present, the webs in fan blades are mainly I-shaped webs and C-shaped webs. Compared with C-shaped webs, I-shaped webs can better avoid stress concentration and have higher structural safety. Therefore, in large-scale I-shaped webs are mainly used in fan blades. [0003] figure 1 and figure 2 It is a schematic diagram of the position of the I-shaped web in the cross-sectional structure of the fan blade in the prior art and a structural diagram of the I-shaped web, respectively. In the fan blade, the I-shaped web 2 is attached to the fan blade through the adhesive 1 On the inner wall, the entire fan blade is supported from the inside. ...

AI Technical Summary

Problems solved by technology

[0008] The hand lay-up and flanging mold cannot produce a suitable flanging angle, and the flanging mold is not easy to fix; the hand lay-up and flanging is purely manual operation, and the production quality depends on the worker's operating skills, which cannot guarantee the consistency of product quality. It is quite different from the design drawings, and it is easy to cause hand-laid air bubbles and delamination problems. There will be bright spots at the corners of the flanging (the surface of the glass fiber is glowing due to the uneven penetration of the resin on the glass fiber), which affects the flanging and the fan blade. The bonding effect; the whole production process is more cumbersome and the production cycle is longer

Images