Preforming cold mold and preforming system for forming pultrusion beam of wind power blade

Abstract

The invention relates to a preforming cold mold and a preforming system for forming a pultrusion beam of a wind power blade. Comprising a box body, a yarn penetrating channel is formed in the box body, a yarn inlet and a yarn outlet which are communicated with the yarn penetrating channel are formed outside the box body, an upper T-shaped embedding hole and a lower T-shaped embedding hole which are communicated with the yarn penetrating channel are formed in the top and the bottom of the box body respectively, an upper insert is embedded in the upper T-shaped embedding hole, and a lower insert is embedded in the lower T-shaped embedding hole. The upper insert and the lower insert are provided with an upper demolding cloth inlet hole and a lower demolding cloth inlet hole respectively, and the upper demolding cloth inlet hole and the lower demolding cloth inlet hole form an angle with the horizontal plane and are both communicated with the yarn penetrating channel. The technical problems that in the prior art, demolding cloth deviates and is wrapped and clamped by yarn, the demolding cloth is layered and swells, and the interior and the exterior are rich in resin marks are solved through the design of the pre-forming cold mold.

Description

technical field [0001] The invention relates to the technical field of wind power blade forming, in particular to a preform cold mold and a preform system for forming a pultrusion beam of a wind power blade. Background technique [0002] It has become an industry trend to use pultrusion beam integrated infusion molding for wind power blades. At present, there are many pultrusion manufacturers of blade beams, and the production equipment and process parameter control have their own characteristics. Problems such as layered bulge, rich resin marks inside and outside, and difficulty in straightness detection are common problems of all pultruded blade beam manufacturers. [0003] The production speed of the pultruded blade beam is generally 0.4-0.8m / min, or even faster. The existing pre-forming method is easy to form resin deposition at the die entry position of the mold, resulting in the bulging of the yarn at the die entry port. On the one hand, the design and positioning of ...

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to provide a preforming cold mold and a preforming system for the pultrusion beam forming of wind power blades, through the design of the preforming c...

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