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Fan blade mould releasing prevention process

A fan blade, anti-dropping technology, applied in household components, household appliances, other household appliances, etc., can solve the problems of waste of materials, complicated operation, low safety factor, etc.

Inactive Publication Date: 2013-03-13
昆山华风风电科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this method is complicated to operate (it needs to be sealed around the shell), wastes materials (requires a large amount of vacuum material), and has a low safety factor (during the mold clamping and flipping process, as long as there is air leakage in the vacuum system, the blades are likely to slip off)

Method used

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  • Fan blade mould releasing prevention process
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Embodiment Construction

[0020] The embodiments of the present invention are described in detail below in conjunction with the accompanying drawings: this embodiment is implemented on the premise of the technical solution of the present invention, and detailed implementation methods and specific operating procedures are provided, but the scope of protection of the present invention is not limited to the following Example.

[0021] according to figure 1 and figure 2 , the fan blade anti-release process, including the following steps:

[0022] 1) On the mold flanging 2, according to the distribution of blade weight, a certain number of holes are punched on the front and rear edges, and the holes correspond to the flanging holes of the flanging cloth layer 1;

[0023] 2) Before laying the flanging cloth layer, seal the hole; the flanging cloth layer 1 covers the hole, and add a cloth layer at the hole;

[0024] 3) The flanging cloth layer 1 is pre-cured to form the blade shell, and the cloth layer on...

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Abstract

The invention relates to the field of preparation of wind power generation blades, and in particular relates to a fan blade mould releasing prevention process. The process comprises the following steps of: 1), drilling a plurality of eyelets in the front edge and the rear edge on mould flangings according to different distributions of the blade weight, wherein the eyelets correspond to flanging holes of flanging cloth layers; 2), sealing the eyelets before the cloth layers are paved, covering the eyelets by the flanging cloth layers and additionally arranging the cloth layers at the eyelets; 3), pre-curing the flanging cloth layers to form a blade shell, and punching the cloth layers on the flanging holes; and 4), fixing the flanging cloth layers and the mould flangings by a fixed tool. By the process, the eyelets are formed in the mould flangings, the blade shell is fixed on the mould flangings by a blade turning fixing tool so as to fulfill the aim that the blade shell does not fall off or displace during turning and closing of the mould; and as the blade shell is mounted after being cured, and the fixing tool can be repeatedly used, and the blade is quickly mounted.

Description

[0001] technical field [0002] The invention relates to the field of wind power generation blade preparation, in particular to a demoulding prevention process for fan blades. [0003] Background technique [0004] Most of the current fan blade production methods are to make the upper and lower mold halves respectively, then close the molds, and glue the two mold halves into a whole with an adhesive. During the mold closing process, the upper mold half needs to rotate 180° around an axis in the axial direction of the blade. How to prevent the upper mold half from falling off or shifting during the rotation process is the key point of mold clamping. The traditional method is to seal the blade shell and the mold on the flanging, and form a negative pressure between the blade shell and the mold by pumping air, and use the vacuum pressure to fix the blade shell and the mold together. However, this method is complicated to operate (it needs to be sealed around the shell), waste...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B29C70/30B29C33/00B29C33/12B29L31/08
Inventor 顾从进怀涛刘剑高伟刘培文成海娃
Owner 昆山华风风电科技有限公司
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