Wind power blade main beam sheet pultrusion impregnation device, die, equipment and method

Abstract

The invention provides a wind power blade main beam sheet pultrusion impregnation device, die, equipment and method. The pultrusion impregnation device comprises an impregnation die and a plurality ofglue injection devices, wherein the impregnation die comprises a closed first die cavity and a first heating device arranged outside the first die cavity, a feeding hole and a discharging hole are formed in the first mold cavity, glue injection holes penetrating into the first mold cavity are further formed in the first mold cavity, glue outlets of the glue injection devices are connected with the glue injection holes, and the glue injection devices are suitable for injecting glue liquid into the first mold cavity. According to the wind power blade main beam sheet pultrusion impregnation device, mold, equipment and method, the influence of environmental factors on the glue liquid performance can be avoided, the glue liquid is mixed and used immediately, the concentration uniformity is high, the fiber positioning trend is accurate and controllable, the length and temperature of each section in the die are further controlled, and the fiber material content is controlled, so that the impregnation effect and the curing effect are guaranteed, and the prepared product has better performance.

Description

technical field [0001] The invention belongs to the field of production equipment for composite material products, and in particular relates to a dipping device, a mould, a device and a method for the pultrusion forming of a main girder sheet of a wind power blade. Background technique [0002] Wind power blades are mostly infused with glass fiber reinforced composite materials, which have good strength and rigidity. However, as the development of blades tends to increase in size, the weight of blades will increase exponentially. This obviously does not meet the requirements of lightweight and low-cost blades. Therefore, it has become an important research direction for the wind power industry to find raw materials with lighter weight and higher cost performance, and to explore molding processes with high molding quality, high production efficiency, and low production cost. Chinese patent document CN 109372708A discloses a structure and manufacturing method of a wind power b...

AI Technical Summary

Problems solved by technology

Chinese patent document CN 109372708A discloses a structure and manufacturing method of a wind power blade main girder or auxiliary girder, which uses boards, low-area density fabrics and resins, and the boards are superimposed on each other in both the chord and longitudinal directions to improve production efficiency purpose, but in the structure of the main beam and auxiliary beam manufactured by this method, the splicing seam between the plates is the weak link of its load bearing

However, the glue tank is usually an open structure, and the glue in the glue tank is easily affected by the external temperature and humidity, which will cause the viscosity of the glue to change and the fiber impregnation to be uneven; The amount of glue is large, and it is easy to make the glue concentration distribution uneven when placed for a long time; there will also be problems such as unstable fiber arrangement during the molding process, resulting in poor performance of the final product; in addition, the existing pultrusion Poor process control in glue, heating and curing stages, poor control of fiber content, resulting in uneven distribution of resin and fibers in the final product, poor curing effect, and poor performance of the final product

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