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RTM change mold for changing root diameters of fan blade molds and change method of RTM change mold

A technology of fan blades and moulds, which is applied to household appliances, other household appliances, and household components, etc., which can solve the problems of high cost, achieve the effects of small dimensional tolerance, fast switching, and improved change efficiency

Pending Publication Date: 2019-02-26
GUANGDONG MINGYANG WIND POWER IND GRP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] The diameter of the root of the traditional blade mold is relatively fixed. After using the fixed male mold to remake the blade main mold, the diameter of the blade root has been fixed. In the process of cost reduction, efficiency increase, and product optimization design, it will be considered to reduce the blade root layer to ensure that the blade root The diameter of the hole remains unchanged, and the outer diameter of the blade needs to be modified to reduce the outer diameter of the blade. Only the root of the main mold is cut and the blade root of the mold is replaced. Therefore, it is necessary to make a male mold for the blade root, which is extremely expensive

Method used

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  • RTM change mold for changing root diameters of fan blade molds and change method of RTM change mold
  • RTM change mold for changing root diameters of fan blade molds and change method of RTM change mold
  • RTM change mold for changing root diameters of fan blade molds and change method of RTM change mold

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Embodiment Construction

[0018] The present invention will be further described below in conjunction with specific examples.

[0019] see Figure 1 to Figure 3 As shown, the root diameter of the fan blade mold provided by this embodiment changes the RTM mold, including the RTM mold shell 12 made of the RTM mold male mold 2 and the RTM mold diameter adjustment rod 11, and the RTM mold shell 12 is based on the RTM mold male mold. The shape and size of the root surface of the blade mold of mold 2 is formed by one-time vacuum infusion, forming a structure with 20mm balsa wood in the middle, 5 layers of 1200 four-axis cloth on the upper and lower sides, and a semicircle that adapts to the shape of the blade root. Surface, the inner surface of the RTM mold shell 12 is hand-laid with a 60*60*3mm square tube 13 to strengthen the strength of the RTM mold shell 12, and the two ends of the opening of the RTM mold shell 12 extend outward horizontally with mounting flanges Side 14, the RTM mold diameter adjustmen...

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Abstract

The invention discloses an RTM change mold for changing root diameters of fan blade molds and change method of the RTM change mold. The mold comprises an RTM mold shell and two RTM mold diameter adjustment rods, wherein the RTM mold shell is made of an RTM mold male mold; the RTM mold shell is molded through vacuum infusion according to the shape size of a blade mold root section of the RTM mold male mold; a structure with balsa wood in the middle and multiple layers of four-axial cloth on the upper and lower sides is formed, and semicircular surfaces adapted to the blade root shape are formed; a square tube is manually pasted on the inner surface of the RTM mold shell to enhance the strength of the RTM mold shell; the two RTM mold diameter adjustment rods are horizontally arranged on thediameters of the semicircular surfaces on two sides of an opening of the RTM mold shell in parallel; the middles of the two RTM mold diameter adjustment rods are formed by positive and negative nuts and bolts via connection; through rotating the positive and negative nuts, the diameter of the RTM mold shell can be adjusted. The mold provided by the invention has the advantages of being reusable, low in cost and high in production efficiency.

Description

technical field [0001] The invention relates to the technical field of a main mold of a wind turbine blade, in particular to an RTM mold for changing the root diameter of a fan blade mold and a changing method thereof. Background technique [0002] The diameter of the root of the traditional blade mold is relatively fixed. After using the fixed male mold to remake the blade main mold, the diameter of the blade root has been fixed. In the process of cost reduction, efficiency increase, and product optimization design, it will be considered to reduce the blade root layer to ensure that the blade root The diameter of the hole remains unchanged, and the outer diameter of the blade needs to be modified to reduce the outer diameter of the blade. Only the main mold blade root is cut and the mold blade root is replaced. Therefore, a set of blade root male molds needs to be made, and the cost is extremely high. Contents of the invention [0003] The purpose of the present invention...

Claims

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Application Information

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IPC IPC(8): B29C33/38B29C70/54B29L31/08
CPCB29C33/3842B29C70/54B29L2031/082
Inventor 林雄张平何金顾育慧裴乔威
Owner GUANGDONG MINGYANG WIND POWER IND GRP CO LTD
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