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...

Examples

Embodiment 1

[0055] Such as figure 1 , figure 2 As shown, a closed dipping device for pultrusion forming of a main beam sheet of a wind power blade described in this embodiment includes: a dipping mold 1 and a plurality of glue injection devices 2; the dipping mold 1 includes a closed first The mold cavity 11 and the first heating device located outside the first mold cavity 11; the first mold cavity 11 is provided with an inlet and a discharge port, and the first mold cavity 11 is also provided with a glue injection holes 13; the glue outlets of multiple glue injection devices 2 are connected to the glue injection holes 13, suitable for injecting glue into the first mold cavity 11.

[0056] Wherein, the closed first mold cavity has the same cross-sectional shape as that of the product to be formed, only the feed inlet and the discharge port are open, and the rest of the walls are closed mold cavities.

[0057] The working process of the closed rubber dipping device of the pultrusion mo...

Embodiment 2

[0076] The wind power blade main girder sheet pultrusion molding equipment structure adopted in this embodiment is the same as that in Embodiment 1, the difference is that: the length of the first cavity is 20 cm; the length of the heating section in the curing molding mold is 30 cm; the length of the gel section is 40cm; the length of the curing section is 30cm.

[0077] The pultrusion forming method of the wind power blade main beam sheet in this embodiment is specifically as follows:

[0078] S1. The fiber material is led out from the creel, separated by the sand plate, arranged by the preformed plate, then penetrated into the dipping mold, passed through other molds in the pultrusion mold, and then reaches the traction device through the curing oven, and is drawn by Machine traction production, the traction speed is 0.35m / min;

[0079] S2. Add the first resin glue solution to a precision glue injection machine and preheat it at 65°C for 10 minutes. Add the second resin gl...

Embodiment 3

[0082] The wind power blade main girder sheet pultrusion molding equipment structure adopted in this embodiment is the same as that in Embodiment 1, the difference is that: the length of the first cavity is 40 cm; the length of the heating section in the curing molding mold is 35 cm; the length of the gel section is 30cm; the length of the curing section is 35cm.

[0083] The pultrusion forming method of the wind power blade main beam sheet in this embodiment is specifically as follows:

[0084] S1. The fiber material is led out from the creel, separated by the sand plate, arranged by the preformed plate, then penetrated into the dipping mold, passed through other molds in the pultrusion mold, and then reaches the traction device through the curing oven, and is drawn by Machine traction production, the traction speed is 0.8m / min;

[0085] S2. Add the first resin glue solution to a precision glue injection machine and preheat it at 50°C for 10 minutes. Add the second resin glu...

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...

Examples

Embodiment 1

[0055] Such as figure 1 , figure 2 As shown, a closed dipping device for pultrusion forming of a main beam sheet of a wind power blade described in this embodiment includes: a dipping mold 1 and a plurality of glue injection devices 2; the dipping mold 1 includes a closed first The mold cavity 11 and the first heating device located outside the first mold cavity 11; the first mold cavity 11 is provided with an inlet and a discharge port, and the first mold cavity 11 is also provided with a glue injection holes 13; the glue outlets of multiple glue injection devices 2 are connected to the glue injection holes 13, suitable for injecting glue into the first mold cavity 11.

[0056] Wherein, the closed first mold cavity has the same cross-sectional shape as that of the product to be formed, only the feed inlet and the discharge port are open, and the rest of the walls are closed mold cavities.

[0057] The working process of the closed rubber dipping device of the pultrusion mo...

Embodiment 2

[0076] The wind power blade main girder sheet pultrusion molding equipment structure adopted in this embodiment is the same as that in Embodiment 1, the difference is that: the length of the first cavity is 20 cm; the length of the heating section in the curing molding mold is 30 cm; the length of the gel section is 40cm; the length of the curing section is 30cm.

[0077] The pultrusion forming method of the wind power blade main beam sheet in this embodiment is specifically as follows:

[0078] S1. The fiber material is led out from the creel, separated by the sand plate, arranged by the preformed plate, then penetrated into the dipping mold, passed through other molds in the pultrusion mold, and then reaches the traction device through the curing oven, and is drawn by Machine traction production, the traction speed is 0.35m / min;

[0079] S2. Add the first resin glue solution to a precision glue injection machine and preheat it at 65°C for 10 minutes. Add the second resin gl...

Embodiment 3

[0082] The wind power blade main girder sheet pultrusion molding equipment structure adopted in this embodiment is the same as that in Embodiment 1, the difference is that: the length of the first cavity is 40 cm; the length of the heating section in the curing molding mold is 35 cm; the length of the gel section is 30cm; the length of the curing section is 35cm.

[0083] The pultrusion forming method of the wind power blade main beam sheet in this embodiment is specifically as follows:

[0084] S1. The fiber material is led out from the creel, separated by the sand plate, arranged by the preformed plate, then penetrated into the dipping mold, passed through other molds in the pultrusion mold, and then reaches the traction device through the curing oven, and is drawn by Machine traction production, the traction speed is 0.8m / min;

[0085] S2. Add the first resin glue solution to a precision glue injection machine and preheat it at 50°C for 10 minutes. Add the second resin glu...

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