KR102423992B1 - Composite material pultrusion device - Google Patents

Abstract

A composite material pultrusion molding apparatus is disclosed. The composite material pultrusion molding apparatus, according to an embodiment of the present invention, continuously receives fiber yarns aligned in a fiber yarn aligner, impregnates the fiber yarns with a resin, and molds a composite material part of a closed cross-sectional shape with a hollow. The composite material pultrusion molding apparatus comprises: i) a resin-impregnated die forming a first conveyance passage through which fiber yarn can pass; ii) a curing die forming a second conveyance passage connected to the first conveyance passage along a conveyance direction of the fiber yarn, and impregnated with resin; iii) a core die disposed in the first conveyance passage and the second conveyance passage and forming a hollow of a composite material part; iv) a resin injection part provided in the resin impregnated die and injecting resin into the first conveyance passage and v) a heating part installed on the curing die and applying heat to the curing die.

Description

Composite material pultrusion molding device {COMPOSITE MATERIAL PULTRUSION DEVICE}

An embodiment of the present invention relates to a plastic composite part manufacturing system, and more particularly, to a composite material pultrusion molding apparatus for pultrusion molding a composite material part of a closed cross-section having a hollow in a pultrusion method. .

Recently, according to the trend of high strength and light weight of the body, as a body material, a steel sheet such as super high tensile steel, a non-ferrous metal sheet such as aluminum or magnesium, as well as carbon fiber reinforced plastic (CFRP) or fiber reinforced plastic (FRP: The application of plastic composite materials such as Fiber Reinforced Plastic) to body parts has become more frequent.

Because plastic composite materials have excellent strength, modulus of elasticity, lightness and stability, they are spotlighted as one of the major materials in the aviation and automobile fields. expect it to be

On the other hand, a body part made of a plastic composite material may be manufactured through a pultrusion system, for example. Pultrusion molding of composite materials is also referred to in the art as pultrusion.

Pull truss is a method that enables uniform and continuous production of products with a certain cross section. Pultrusion molding of plastic composite materials using the pull-through method does not use a woven textile material or a prepreg that has undergone primary molding of textile material, but passes textile yarns through a resin tank, It is a method of manufacturing a plastic composite material part by impregnating the resin with a resin and curing the fiber material impregnated with the resin by passing it through a certain mold.

This pultrusion molding method of plastic composite parts is economical in mass production in a manner suitable for manufacturing parts having a certain direction, and for example, it is used to manufacture plastic composite body parts such as hollow beams formed in a closed section. It is mainly applied.

On the other hand, in the pultrusion molding method of the plastic composite material according to an example of the prior art, the fiber material yarns are passed through an open resin tank, the fiber material yarns are impregnated with resin, and the resin-impregnated fiber material yarns are used in a separate mold. An example of the curing process is an open-type resin impregnation method for manufacturing plastic composite parts.

However, in the pultrusion molding process of a plastic composite material to which an open resin impregnation method is applied according to the prior art, as the resin contained in the resin tank is exposed to the external environment, it has a harmful effect on the human body in the working process, and the resin reacts with foreign substances in the air to form Product quality deviation may occur.

Furthermore, in the prior art, in the case of pultrusion-molded hollow parts, since torsional deformation occurs after resin curing or bending rigidity is weak, the thickness of the closed section is increased, but this may result in an increase in manufacturing cost.

Matters described in this background section are prepared to enhance understanding of the background of the invention, and may include matters that are not already known to those of ordinary skill in the art to which this technology belongs.

Embodiments of the present invention inject resin in a single mold assembly, impregnate the fiber with the resin, harden the fiber impregnated with the resin, and continuously pultrusion a composite material part with a hollow cross-section. An object of the present invention is to provide a composite pultrusion molding apparatus.

In addition, embodiments of the present invention provide a composite material pultrusion apparatus capable of continuously pultruding a composite material part having increased rigidity without increasing the thickness of the closed section.

Composite material pultrusion molding apparatus according to an embodiment of the present invention, by continuously receiving the fiber yarns aligned from the fiber yarn aligner, impregnating the fiber yarns with resin, and forming a composite material part of a closed cross-sectional shape having a hollow For this purpose, i) a resin-impregnated die forming a first conveying path through which the fiber yarn can pass, ii) a second conveying path connected to the first conveying path along the conveying direction of the fiber yarn, and the resin a curing die connected to the impregnation die; iii) a core die disposed in the first and second conveying passages and forming a hollow of the composite material part; It may include a resin injection unit injected into the furnace, and v) a heating unit installed on the curing die and applying heat to the curing die.

In addition, in the composite material pultrusion apparatus according to an embodiment of the present invention, the core die may form a resin flow passage connected to the first and second transfer passages in a longitudinal direction.

In addition, in the composite material pultrusion apparatus according to an embodiment of the present invention, the core die is integrally connected to the core block and the core block disposed on the fiber yarn inlet side in the resin-impregnated die, and the curing die It may include a plurality of parting cores extending to and a resin flow passage formed to be connected to the first and second transfer passages between the parting cores.

In addition, in the composite material pultrusion molding apparatus according to an embodiment of the present invention, the resin flow passage may be formed in a grid shape between the parting cores.

In addition, in the composite material pultrusion molding apparatus according to an embodiment of the present invention, the resin injected through the resin injection part flows through the resin flow passage, and ribs may be formed in the closed cross-section of the composite material part.

In addition, in the composite material pultrusion apparatus according to an embodiment of the present invention, the parting cores may be connected to the core block in a cantilever shape.

In addition, in the composite material pultrusion molding apparatus according to an embodiment of the present invention, the resin injection unit may be connected to the first transfer passage and the resin flow passage.

In addition, in the composite material pultrusion molding apparatus according to an embodiment of the present invention, the resin-impregnated die may include a lower die located on the lower side, and an upper die located on the upper side.

In addition, in the composite material pultrusion molding apparatus according to an embodiment of the present invention, the resin-impregnated die may form the first transfer path between the lower die and the upper die.

And, the composite material pultrusion molding apparatus according to an embodiment of the present invention is continuously supplied with the fiber yarns aligned from the fiber yarn aligner and impregnated with the resin, and the resin-impregnated fiber is cured to form a hollow. For molding a composite material part having a closed cross-sectional shape, i) a resin-impregnated die forming a first conveying path through which the fiber yarn can pass; ii) disposed in the first conveying path, the composite material part a core die forming a hollow; A resin flow path may be formed.

In addition, the composite material pultrusion molding apparatus according to an embodiment of the present invention includes a curing die connected to the resin-impregnated die and forming a second transfer passage connected to the first transfer passage along the transfer direction of the fiber yarn. may include

In addition, the composite pultrusion molding apparatus according to an embodiment of the present invention may further include a heating unit installed on the curing die and applying heat to the curing die.

Further, in the composite material pultrusion apparatus according to an embodiment of the present invention, the core die may be disposed in the first and second transfer passages connected to each other along the transfer direction of the fiber yarn.

In addition, in the composite material pultrusion apparatus according to an embodiment of the present invention, the core die is connected to the core block disposed on the fiber yarn inlet side in the resin-impregnated die and the core block at a set interval in a cantilever form. It may include a plurality of parting cores.

In addition, in the composite material pultrusion apparatus according to an embodiment of the present invention, the resin flow passage may be formed to be connected to the first and second transfer passages between the parting cores.

In addition, in the composite material pultrusion apparatus according to an embodiment of the present invention, the resin flow passage is formed in a grid shape between the parting cores, and may be connected to the resin injection unit through the first transfer passage. .

In the embodiments of the present invention, as the resin is continuously injected into the resin-impregnated die to impregnate the fiber with the resin, and the resin-impregnated fiber is formed of a single mold assembly that is cured through a curing die, the composite material part is drawn out. It is possible to increase the extrusion speed, and it is possible to reduce the equipment investment cost.

In addition, in embodiments of the present invention, by forming a grid-type rib integrally connected with the closed cross-section inside the hollow of the composite material part, the rigidity of the composite material part can be increased without increasing the thickness of the closed cross-section of the composite material part. have.

In addition, the effects obtainable or predicted by the embodiments of the present invention are to be disclosed directly or implicitly in the detailed description of the embodiments of the present invention. That is, various effects predicted according to an embodiment of the present invention will be disclosed in the detailed description to be described later.

Since these drawings are for reference in describing an exemplary embodiment of the present invention, the technical spirit of the present invention should not be construed as being limited to the accompanying drawings.
1 is a view schematically showing a composite material pultrusion molding apparatus according to an embodiment of the present invention.
2 to 4 are cross-sectional views of a mold showing a composite material pultrusion molding apparatus according to an embodiment of the present invention.
5 is a perspective view showing a core die applied to a composite material pultrusion molding apparatus according to an embodiment of the present invention.
6 is a cross-sectional view showing a composite material part molded by the composite material pultrusion molding apparatus according to an embodiment of the present invention.

Hereinafter, with reference to the accompanying drawings, embodiments of the present invention will be described in detail so that those of ordinary skill in the art to which the present invention pertains can easily implement them. However, the present invention may be embodied in various different forms and is not limited to the embodiments described herein.

In order to clearly describe the present invention, parts irrelevant to the description are omitted, and the same reference numerals are assigned to the same or similar elements throughout the specification.

Since the size and thickness of each component shown in the drawings are arbitrarily indicated for convenience of description, the present invention is not necessarily limited to the bar shown in the drawings, and the thickness is enlarged to clearly express various parts and regions.

In addition, in the following detailed description, the reason for dividing the names of components into first, second, etc. is to classify them in the same relationship, and it is not necessarily limited to the order in the following description.

Throughout the specification, when a part "includes" a certain component, it means that other components may be further included, rather than excluding other components, unless otherwise stated.

1 is a view schematically showing a composite material pultrusion molding apparatus according to an embodiment of the present invention.

Referring to FIG. 1 , the composite material pultrusion molding apparatus 100 according to an embodiment of the present invention may be applied to a process of manufacturing parts for assembling a vehicle body, such as a vehicle body panel, a vehicle body member, and a vehicle body frame.

Furthermore, the composite material pultrusion molding apparatus 100 according to an embodiment of the present invention is a plastic composite material part 1 (hereinafter, referred to as a 'composite material part' for convenience) of a closed cross-sectional shape having a hollow as a vehicle body part. ) can be applied to the molding process.

However, it should not be understood that the protection scope of the present invention is necessarily limited to molding the composite material part 1 as a vehicle body part, and the technical idea of the present invention can be applied if the plastic composite material is applied to various types and uses. can

In the above, the plastic composite material may include fiber reinforced plastic (FRP), carbon fiber reinforced plastic (CFRP), and glass fiber reinforced plastic (GFRP: Glass Fiber Reinforced Plastic). plastic) may be included.

Such a plastic composite material has superior strength and modulus compared to steel material, excellent in repetitive fatigue, excellent dimensional stability because of a small coefficient of thermal expansion, and excellent electrical conductivity, corrosion resistance, and vibration damping performance.

Hereinafter, the components of the device 100 will be described based on the vertical direction. The upper part is defined as the upper part, the upper part, the upper surface, and the upper part, and the lower part is defined as the lower part, the lower part, the lower part and the lower part. decide to do

Furthermore, an end (one end, another end, one end, the other end, etc.) in the following may be defined as either end, and a certain part (one end, the other end, one end, the other end) including the end. wealth, etc.) can also be defined.

On the other hand, the composite material pultrusion molding apparatus 100 according to an embodiment of the present invention continuously forms the composite material part 1 while impregnating and curing the resin in the fiber material yarn (hereinafter referred to as 'fiber yarn 3'). The molding method is applied.

In this method, the fiber yarn aligner ( 5) is included.

The composite pultrusion molding apparatus 100 according to an embodiment of the present invention is capable of injecting a resin in a single mold assembly, impregnating the fiber 3 with a resin, and curing the resin-impregnated fiber 3 . made of structure

In addition, an embodiment of the present invention provides a composite material pultrusion molding apparatus 100 that can secure the quality of the composite material component (1), such as increasing the rigidity of the composite material component (1).

2 to 4 are cross-sectional views of a mold showing a composite material pultrusion molding apparatus according to an embodiment of the present invention.

1 to 4, the composite material pultrusion molding apparatus 100 according to an embodiment of the present invention is basically a resin impregnated die 10, a curing die 20, a core die 30, resin injection It is configured to include the unit 50, and the heating unit 70, which will be described for each configuration as follows.

In an embodiment of the present invention, the resin impregnation die 10 receives the fiber yarn 3 from the fiber yarn aligner 5, receives the resin in a predetermined amount, and impregnates the fiber yarn 3 with the resin. and molding the resin-impregnated fiber yarn 3 into a set shape - provided as a spraying mold.

The resin-impregnated die 10 forms a fiber yarn inlet 11 into which the fiber yarn 3 aligned in the cross-sectional shape of the composite material part 1 in the fiber yarn aligner 5 is put, and the fiber yarn ( 3) forms a first conveying passage 13 through which it can pass.

The resin-impregnated die 10 includes a lower die 15 positioned on the lower side and an upper die 17 positioned on the upper side of the lower die 15 . Here, the first transfer passage 13 is formed between the lower die 15 and the upper die 17 .

In an embodiment of the present invention, the curing die 20 is to heat and harden the fiber yarn 3 impregnated with the resin while being put into the resin impregnation die 10 to form the resin-impregnated fiber 3 into a set shape. . The curing die 20 is integrally connected with the resin impregnation die 10 along the feeding direction of the fiber yarn 3 .

The curing die 20 forms a second transfer passage 21 connected to the first transfer passage 13 of the resin-impregnated die 10 along the transfer direction of the fiber yarn 3 .

In the embodiment of the present invention, the core die 30 is a fiber yarn 3 transferred along the first transfer passage 13 of the resin impregnation die 10 and the second transfer passage 21 of the curing die 20 . ) to form a hollow of the composite material part (1) while guiding.

The overall shape of the core die 30 is a shape corresponding to the hollow of the composite material part 1 , and this core die 30 is provided with a fiber yarn ( 3) is placed along the transport direction. That is, the core die 30 is disposed in the first and second transfer passages 13 and 21 connected to each other along the transfer direction of the fiber yarn 3 .

As described above, as the core die 30 is disposed in the first transfer passage 13 and the second transfer passage 21 , the first and second transfer passages 13 and 21 are formed outside the core die 30 . A cavity is formed as a fiber yarn (3) conveying section corresponding to the cross section of the composite material part (1) by the surface.

A specific configuration of the core die 30 will be described in more detail later.

In an embodiment of the present invention, the resin injection unit 50 is for injecting the resin R into the first transfer passage 13 of the resin-impregnated die 10, and in one example, the resin-impregnated die 10 ) is provided at the top and bottom, respectively.

The resin injection unit 50 is a resin injection head for injecting the resin (R) into the first conveying passage 13 of the resin-impregnated die 10 along the conveying direction of the fiber yarn 3 , and the resin-impregnated die 10 . ) of the lower die 15 and the upper die 17 are installed. The resin injection part 50 is connected to the first transfer passage 13 of the resin impregnation die 10 .

In an embodiment of the present invention, the heating unit 70 is hardened so that the fiber yarn 3 transferred from the resin impregnation die 10 to the curing die 20 in a state impregnated with the resin R can be cured. This is to apply heat to the die 20 .

The heating unit 70 is installed in the curing die 20, for example, it may include a heating device of a well-known technology in the art, such as a high-frequency heating coil, a heater rod, a heating cartridge, and the like.

On the other hand, the core die 30 according to the embodiment of the present invention as described above forms the hollow 3 (refer to FIG. 6 below) of the composite material part 1, and the waste of the composite material part 1 It has a structure capable of forming a rib 6 (refer to FIG. 6 below) integrally connected to the inside of the cross section 4 (refer to FIG. 6 below).

5 is a perspective view illustrating a core die applied to a composite pultrusion molding apparatus according to an embodiment of the present invention, and FIG. 6 is a composite material part molded by a composite pultrusion molding apparatus according to an embodiment of the present invention It is one cross section.

1 to 6 , the core die 30 according to an embodiment of the present invention includes a core block 31 , a plurality of parting cores 33 , and a resin flow passage 35 .

The core block 31 is disposed on the side of the fiber yarn inlet 11 of the resin impregnation die 10 .

The plurality of parting cores 33 are integrally connected to the core block 31 at set intervals and extend to the curing die 20 . These parting cores 33 are connected to the core block 31 in a cantilever shape.

The resin flow passage 35 is a passage through which the resin R injected through the resin injection unit 50 flows, and the resin integrally connected to the closed end surface 4 in the hollow 2 of the composite material part 1 . The ribs 6 of the material are formed.

The resin flow passage 35 is a first transfer passage 13 of the resin impregnation die 10 and a second transfer of the curing die 20 between the parting cores 33 along the longitudinal direction of the core die 30 . It is formed to be connected to the passage (21).

Here, the resin flow passage 35 is formed in a grid shape between the parting cores 33 and is connected to the first transfer passage 13 of the resin impregnation die 10 . Furthermore, the resin injection part 50 as described above is connected to the first transfer passage 13 of the resin impregnation die 10 and the resin flow passage 35 of the core die 30 .

Hereinafter, the operation of the composite material pultrusion molding apparatus 100 according to an embodiment of the present invention configured as described above will be described in detail with reference to FIGS. 1 to 6 .

First, in the embodiment of the present invention, the fiber yarns 3 supplied from a plurality of roving krill are aligned in the set cross-sectional shape of the composite material part 1 in the fiber yarn aligner 5, and the fiber yarns 3 are It is transferred along the set transfer path, and it is put into the fiber yarn inlet 11 of the resin impregnation die 10 .

Then, the fiber yarns 3 are transported along the first transport path 13 of the resin-impregnated die 10. In the first transport path 13, the core die 30 is placed at the center of the core die. By the outer surface of (30), the fiber yarn (3) corresponding to the cross section of the composite material part (1) is transported through the cavity as a transport section.

In this process, in the embodiment of the present invention, the resin R is injected into the first transfer passage 13 of the resin impregnation die 10 through the resin injection unit 50 . Accordingly, the resin (R) flows together with the fiber yarn (3) in the transport direction of the fiber yarn (3) through the first conveying passage (13), and is impregnated into the fiber yarn (3).

Furthermore, in the embodiment of the present invention, the resin (R) injected into the first transfer passage 13 by the resin injection unit 50 is transferred through the resin flow passage 35 of the core die 30 to the core die ( 30) in the longitudinal direction. That is, the resin R flows toward the curing die 20 along the lattice-shaped resin flow passage 35 partitioned by the parting cores 33 of the core die 30 .

On the other hand, in the state of impregnating the resin (R) in the fiber (3) transferred from the resin impregnation die (10) as described above, in the embodiment of the present invention, the fiber (3) impregnated with the resin (R) is transferred to the second transfer passage 21 of the curing die 20 .

At this time, the fiber yarn 3 impregnated with the resin (R) has the core die 30 on the center side in the second transfer passage 21 and the composite material part 1 is formed by the outer surface of the core die 30 . ) is transferred through the cavity as a transfer section of the fiber yarn 3 corresponding to the cross section.

At the same time, in the embodiment of the present invention, the resin R is transferred from the second transfer passage 21 of the curing die 20 through the resin flow passage 35 of the core die 30 to the length of the core die 30 . flow along the direction.

In this process, in the embodiment of the present invention, heat is applied to the curing die 20 through the heating unit 70 . Then, the fiber yarn 3 impregnated with the resin (R) is heated and cured in a shape set through the curing die 20 and transferred to a later process.

And, in the embodiment of the present invention, in the process in which the fiber yarn 3 impregnated with the resin (R) is heated and cured through the heating unit 70, the resin flow of the core die 30 from the resin-impregnated die 10 side. The resin R flowing along the passage 35 toward the curing die 20 is heated and cured through the heating unit 70 .

Next, in the embodiment of the present invention, as described above, the fiber yarn 3 impregnated with the resin (R) is heat-cured in the curing die 20, and the resin (R) in the resin flow passage 35 is heat-cured. The molded composite material part 1 is taken out from the curing die 20 and transferred to a post-process such as a cutting process.

The composite material part 1 pultruded through a series of processes as described above is formed into a closed cross-section 4 having a hollow 2 as shown in FIG. 6 . Here, in the hollow (2) of the composite material part (1), a grid-like rib (6) integrally connected to the closed section (4) is formed.

According to the composite material pultrusion molding apparatus 100 according to the embodiment of the present invention as described so far, in a single mold assembly in which the resin impregnation die 10 and the curing die 20 are integrally connected, the resin (R) is The resin impregnated die 10 is injected into the fiber yarn 3 to be impregnated, and the fiber yarn 3 impregnated with the resin R is cured through the curing die 20, and the closed section with the hollow 2 The composite material part (1) formed by (4) can be continuously pultruded.

Therefore, in the embodiment of the present invention, as a single mold assembly of the resin impregnation die 10 and the curing die 20 is configured, the drawing-extruding speed of the composite material part 1 can be increased, and the facility investment cost can be reduced. can be promoted

In addition, in the embodiment of the present invention, unlike the open-type resin impregnation method according to the prior art, as a method of continuously injecting resin into the interior of the resin impregnation die 10 is applied, the resin tank can be deleted, and the resin is exposed to the external environment It is possible to prevent the harmful effects of exposure to the human body and the occurrence of variations in the quality of molded products due to the reaction between resin and foreign substances.

Furthermore, in the embodiment of the present invention, by forming the lattice-shaped ribs 6 integrally connected with the closed section 4 inside the hollow 2 of the composite material part 1, the composite material part 1 It is possible to increase the rigidity of the composite material part 1 without increasing the thickness of the closed cross-section.

Accordingly, in the embodiment of the present invention, it is possible to secure the quality of the composite material component 1, such as preventing the occurrence of deformation such as warping of the composite material component 1 after curing, and the manufacturing cost of the composite material component 1 can save

Although preferred embodiments of the present invention have been described above, the present invention is not limited thereto, and various modifications can be made within the scope of the claims, the detailed description of the invention, and the accompanying drawings. It goes without saying that it falls within the scope of the invention.

1: Composite part 2: Hollow
3: fiber yarn 4: lung cross section
5: Fiber aligner 6: Rib
R: Resin 10: Resin impregnated die
11: Textile yarn inlet 13: First transfer passage
15: lower die 17: upper die
20: curing die 21: second transfer passage
30: core die 31: core block
33: parting core 35: resin flow passage
50: resin injection unit 70: heating unit
100: composite pultrusion molding device

Claims (15)

As a composite material pultrusion molding device for continuously receiving the aligned fiber yarn from the fiber yarn aligner, impregnating the fiber yarn with resin, and forming a composite material part having a hollow closed cross-section,
a resin impregnation die forming a first conveying path through which the fiber yarn can pass;
a curing die which forms a second transfer passage connected to the first transfer passage along the transfer direction of the fiber yarn and is connected to the resin-impregnated die;
a core die disposed in the first and second conveying passages and forming a hollow of the composite material part;
a resin injection unit provided in the resin-impregnated die and injecting a resin into the first transfer passage; and
a heating unit installed on the curing die and applying heat to the curing die;
Composite pultrusion molding device comprising a. The method of claim 1,
The core die,
A composite material pultrusion molding apparatus for forming a resin flow passage connected to the first and second transfer passages in a longitudinal direction. The method of claim 1,
The core die,
a core block disposed on the fiber yarn inlet side in the resin impregnation die;
a plurality of parting cores integrally connected to the core block and extending to the curing die;
A resin flow passage formed to be connected to the first and second transfer passages between the parting cores.
Composite pultrusion molding device comprising a. 4. The method of claim 3,
The resin flow passage,
A composite pultrusion molding apparatus formed in a grid shape between the parting cores. 4. The method of claim 3,
The resin flow passage,
A composite material pultrusion molding apparatus in which the resin injected through the resin injection part flows, and forms a rib in the closed end surface of the composite material part. 4. The method of claim 3,
The parting cores are
Composite material pultrusion device connected to the core block in the form of a cantilever. 4. The method of claim 3,
The resin injection unit,
A composite material pultrusion molding apparatus connected to the first transfer passage and the resin flow passage. The method of claim 1,
The resin impregnated die,
It includes a lower die located on the lower side, and an upper die located on the upper side,
A composite material pultrusion molding apparatus forming the first transfer passage between the lower die and the upper die. Composite material pultrusion molding for forming a composite material part having a closed cross-sectional shape having a hollow by continuously receiving the aligned fiber yarn from the fiber yarn aligner, impregnating the fiber yarn with resin, and curing the resin-impregnated fiber yarn As a device,
a resin impregnation die forming a first conveying passage through which the fiber yarn can pass;
a core die disposed in the first conveying passage and forming a hollow of the composite component; and
a resin injection unit provided in the resin-impregnated die and injecting a resin into the first transfer passage;
includes,
The composite material pultrusion molding apparatus is formed in the core die with a resin flow passage configured to form a rib in the closed end face of the composite material part. 10. The method of claim 9,
A curing die connected to the resin-impregnated die and forming a second conveying path connected to the first conveying path along the conveying direction of the fiber yarn
Composite material pultrusion molding device further comprising. 11. The method of claim 10,
The composite material pultrusion molding apparatus installed on the curing die, further comprising a heating unit for applying heat to the curing die. 11. The method of claim 10,
The core die,
Composite material pultrusion molding apparatus disposed in the first and second transfer passages connected to each other along the transfer direction of the fiber yarn. 10. The method of claim 9,
The core die,
a core block disposed on the fiber yarn inlet side in the resin impregnation die;
A plurality of parting cores connected to the core block in a cantilever form at a set interval
Composite pultrusion molding device comprising a. 14. The method of claim 13,
The resin flow passage,
Composite pultrusion molding apparatus formed to be connected to the first and second transfer passages between the parting cores. 15. The method of claim 14,
The resin flow passage,
A composite material pultrusion molding apparatus formed in a grid shape between the parting cores and connected to the resin injection part through the first transfer passage.

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