KR102352720B1 - Apparatus for impregnating reinforcing fibers - Google Patents

Abstract

Disclosed is a reinforcing fiber impregnation device. The reinforcing fiber impregnation device comprises: an impregnation part filled with resin in an enclosed space inside; an inlet pipe formed with a movement space in which reinforcing fibers move, having a columnar shape, and formed to pass through a first position among the upper surface of the impregnation part; an outlet pipe formed with a movement space in which the reinforcing fibers move, having a columnar shape, and formed to pass through a second position among the upper surface of the impregnation part; and a transfer part formed in the space filled with resin inside the impregnation part and transmitting the reinforcing fibers introduced through the outlet of the inlet pipe in the direction of the inlet of the outlet pipe. The reinforcing fibers are introduced from the outside to the inside of the impregnation part through the inlet pipe. The introduced reinforcing fibers are impregnated while passing through the resin-filled part inside the impregnation part and the transfer part. The resin-impregnated reinforcing fibers are discharged from the inside of the impregnation part to the outside through the outlet pipe. The impregnation part has an air pressure greater than atmospheric pressure in the space between the surface of the resin filled inside the impregnation part and the upper surface of the impregnation part. The resin can be filled up to a position higher than the outlet of the inlet pipe and the inlet of the outlet pipe located inside the impregnation part. Accordingly, it is possible to increase the impregnation efficiency.

Description

Apparatus for impregnating reinforcing fibers

The present invention relates to an apparatus for impregnating reinforcing fibers, and more particularly, to an apparatus for impregnating reinforcing fibers that improves impregnation efficiency, effectively prevents environmental pollution problems, and improves work stability by allowing resin to be impregnated into reinforcing fibers using a pressure difference.

Reinforcing fiber winding molding technology is a composite material molding technology that is manufactured by impregnating resin into reinforcing fibers such as carbon fiber or glass fiber, which have superior specific stiffness and specific strength compared to other materials. In general, the reinforcing fiber swivel molding technology is a method in which reinforcing fibers are placed on a mandrel and then impregnated in a container filled with resin, a method of injecting resin after reinforcing fibers are rotated and placed, and a resin using static electricity There are a method of impregnating with a resin, a method of using a prepreg made into a gel state by impregnating a resin, and a method of impregnating a resin using a laser, but the most commonly used reinforcing fiber turning molding method is It is a method of impregnating a resin in a filled container.

In general, the method of turning reinforcing fibers using an impregnation device, which is a container filled with resin, is to supply the reinforcing fibers mounted on a cradle while applying a tensile force to the tension device while transferring the reinforcing fibers to the resin-filled impregnation device, and the impregnation As it passes through the device, the resin-impregnated reinforcing fiber is pulled by the rotational force of the mandrel, and the reinforcing fiber is pivotally arranged on the outer surface of the mandrel.

However, since the most commonly used reinforcing fiber swivel molding technology is an impregnation method based on a container filled with resin, the generation of environmental pollutants is inevitable. The root cause of the occurrence of environmental pollutants is that low-viscosity resin and a large amount of organic solvent are used in the reinforcing fiber rotation molding technology. Not only does it take manpower and time, but the surplus resin that has passed its shelf life generates heat of cross-linking reaction and poses a risk of fire. The reason for using a low-viscosity resin despite these disadvantages is to smoothly impregnate the resin into the reinforcing fibers.

The causes of environmental pollution problems, productivity decrease, and increase in maintenance and management costs that occur in this general reinforcing fiber swivel molding technology are the limitation of the shelf life of the mixed resin before impregnation, the use of organic solvents, the open impregnation container, and the treatment of surplus resin, etc. However, none of the currently used technologies are capable of remarkably improving environmental problems, productivity improvement, and maintenance and management costs.

An object of the present invention is to provide an apparatus for impregnating reinforcing fibers that improves impregnation efficiency, effectively prevents environmental pollution problems, and improves work stability by allowing a resin to be impregnated into reinforcing fibers using a high pressure difference.

In order to achieve the above object, the apparatus for impregnating reinforcing fibers according to an embodiment of the present invention includes an impregnation part filled with resin in a closed space inside, a moving space in which the reinforcing fibers move, and has a column shape. , an inlet pipe formed to pass through a first position among the upper surfaces of the impregnated part, a movement space in which the reinforcing fiber moves is formed therein, has a column shape, and is formed to pass through a second position among the upper surfaces of the impregnated part It may be provided with a discharge pipe that is formed in the space filled with the resin inside the impregnated part and a delivery unit for transmitting the reinforcing fibers introduced through the outlet of the inlet pipe in the direction of the inlet of the discharge pipe. Then, the reinforcing fibers are introduced from the outside of the impregnated part to the inside through the inlet pipe, and the introduced reinforcing fibers are impregnated while passing through the resin-filled part and the delivery part inside the impregnated part, and the resin-impregnated reinforcement The fiber is discharged from the inside of the impregnated part to the outside through the discharge pipe, and the impregnated part has an air pressure greater than atmospheric pressure in the space between the surface of the resin filled inside the impregnated part and the upper surface of the impregnated part, and inside the impregnated part The resin may be filled to a position higher than the outlet of the inlet pipe and the inlet of the outlet pipe.

The impregnation device has a flexible material, is coupled to the lower portion of the upper surface of the impregnation part while enclosing the inlet pipe, and extends to a position lower than the outlet of the inlet pipe, and the lower part than the outlet of the inlet pipe goes down A first flexible pipe having a shape in which the area of a horizontal cross section gradually decreases, and a plurality of first flexible pipes surrounding the first flexible pipe and coupled to the lower part of the upper surface of the impregnated part, and surrounding the first flexible pipe It may further include a first support pipe in which the through-holes are formed.

The resin may be filled to a position higher than the outlet of the inlet pipe in the inner space of the first flexible pipe surrounding the inlet pipe and the inner space of the first support pipe surrounding the first flexible pipe.

The impregnation device has a flexible material, is coupled to the lower portion of the upper surface of the impregnation part while enclosing the discharge pipe, and extends to a position lower than the inlet of the discharge pipe, and the lower part of the discharge pipe is lower than the entrance of the discharge pipe. A second flexible pipe having a shape that gradually increases in area, and a plurality of second through-holes in a portion surrounding the second flexible pipe and coupled to the lower part of the upper surface of the impregnated part while surrounding the second flexible pipe It may further include a second support tube is formed.

The resin may be filled to a position higher than the inlet of the discharge pipe in the inner space of the second flexible pipe surrounding the discharge pipe and the internal space of the second support pipe surrounding the second flexible pipe.

The reinforcing fiber impregnation device according to an embodiment according to the technical idea of the present invention is such that the air pressure inside the sealed impregnation part is higher than atmospheric pressure and the reinforcing fiber is impregnated in a state in which a flexible pipe made of a flexible material through which the reinforcing fiber passes is pressed. By doing so, there is an advantage in that the impregnation efficiency can be increased by allowing the reinforcing fibers to be impregnated in a state in which the viscosity of the resin is increased compared to the conventional method. In addition, the apparatus for impregnating reinforcing fibers according to an embodiment according to the technical idea of the present invention can increase the impregnation efficiency while minimizing the use of organic solvents due to the use of high-viscosity resin, and the resin inside the impregnation part is present in a closed space. There is an advantage in that environmental pollution can be minimized by not leaking to the outside. In addition, the apparatus for impregnating reinforcing fibers according to an embodiment according to the technical spirit of the present invention provides a tensile force to the reinforcing fibers flowing into or discharged from the apparatus for impregnating reinforcing fibers by installing a flexible tube and a support tube surrounding the inlet and outlet pipes. Therefore, there is an advantage in that there is no need to provide a separate tensioning device outside the reinforcing fiber impregnating device.

In order to more fully understand the drawings recited in the Detailed Description, a brief description of each drawing is provided.
1 is a cross-sectional view of an apparatus for impregnating reinforcing fibers according to an embodiment according to the technical spirit of the present invention.
FIG. 2 is an enlarged cross-sectional view of an inlet through which a reinforcing fiber flows in the reinforcing fiber impregnation device of FIG. 1 .
FIG. 3 is an enlarged view showing a discharge part through which the reinforcing fiber is discharged among the reinforcing fiber impregnating apparatus of FIG. 1 .

In order to fully understand the present invention, the operational advantages of the present invention, and the objects achieved by the practice of the present invention, reference should be made to the accompanying drawings illustrating preferred embodiments of the present invention and the contents described in the drawings.

Hereinafter, the present invention will be described in detail by describing preferred embodiments of the present invention with reference to the accompanying drawings. Like reference numerals in each figure indicate like elements.

1 is a cross-sectional view of a reinforcing fiber impregnating apparatus 100 according to an embodiment according to the technical idea of the present invention, and FIG. 2 is an inlet through which the reinforcing fiber 150 is introduced in the reinforcing fiber impregnating apparatus 100 of FIG. 1 . It is an enlarged cross-sectional view of 120 , and FIG. 3 is an enlarged view showing the discharge unit 140 from which the reinforcing fibers 155 are discharged in the reinforcing fiber impregnation apparatus 100 of FIG. 1 .

1 to 3 , the reinforcing fiber impregnation apparatus 100 may include an impregnation part 110 , an inlet part 120 , and an exhaust part 140 . For example, a reinforcing fiber mounted on a cradle is supplied to the reinforcing fiber impregnation device 100 and delivered to the inside of the impregnating unit 110 , and the resin to the reinforcing fiber 150 introduced from the inside of the impregnating unit 110 . After being impregnated, the resin-impregnated reinforcing fibers 155 may be discharged to the outside of the reinforcing fiber impregnating apparatus 100 through the discharge unit 140 to be pivotally disposed on the outer surface of a mandrel or the like. For example, a tensioning device may transfer the reinforcing fibers 150 to the inlet 120 while applying a tensile force to the front end of the inlet 120 of the reinforcing fiber impregnating device 100 , and discharge of the reinforcing fiber impregnating device 100 . At the rear end of the part 140, the reinforcing fiber 155 impregnated with resin may be pulled by the rotational force of the mandrel. Alternatively, as will be described below as another example, in the case of the structure of the present invention, the reinforcing fibers can be stably impregnated and discharged without a separate device for providing such a tensile force.

The impregnated part 110 may be filled with a resin in a sealed space inside. The upper surface of the impregnated part 110 may have an openable and openable cover coupled thereto, but the inner space of the impregnated part 110 must be sealed while the reinforcing fiber is impregnated. And although not shown in the drawings, the impregnated part 110 may further include a resin supply means for supplying a resin therein. For example, the resin may be supplied to the inside of the impregnated part 110 from the outside through a pipe connected to one side of the impregnated part 110 through a valve. However, in the present invention, the means for supplying the resin to the inside of the impregnated part 110 is not limited to this case, and other various means may be combined.

In addition, in the impregnated part 110 , a space between the surface of the resin filled in the impregnated part 110 and the upper surface of the impregnated part 110 may have an air pressure P greater than atmospheric pressure. That is, the air pressure (P), which is the pressure of the space filled with air other than the space filled with the resin in the impregnated part 110, may be greater than the atmospheric pressure. Therefore, compared to the case where the air pressure inside the impregnation part 110 is not adjusted, the resin pressure increases, so that the efficiency of impregnating the reinforcing fiber 150 with the high-viscosity resin can be increased. For example, the air pressure inside the impregnated part 110 may have a pressure between 1.5 times and 2 times atmospheric pressure. However, in the present invention, the air pressure inside the impregnation unit 110 is not limited to a case where the pressure is between 1.5 and 2 times the atmospheric pressure, and if the pressure is higher than the atmospheric pressure, it may have a different pressure. And although not shown in the drawings, a pressure control device may be further provided inside or outside the impregnated part 110 in order to control the air pressure inside the impregnated part 110 .

The inside of the impregnation part 110 may be filled with resin to a position higher than the outlet of the inlet pipe 121 and the inlet of the outlet pipe 141 to be described below. The inlet of the inlet pipe 121 means a portion where the reinforcing fibers 150 start to flow from the outside, and the outlet of the inlet pipe 121 is impregnated with the reinforcing fibers 150 introduced into the inlet of the inlet pipe 121 . It means a part discharged to the inside of the unit 110 . In addition, the inlet of the discharge pipe 141 means a portion where the resin-impregnated reinforcing fibers start to flow in the interior of the impregnated part 110 , and the outlet of the discharge pipe 141 is the reinforcement introduced into the inlet of the discharge pipe 141 . It refers to a portion in which the fibers are discharged to the outside of the impregnated part 110 . The height of the outlet of the inlet pipe 121 and the height of the inlet of the outlet pipe 141 may be the same or different. The resin may be filled in the impregnated portion 110 to a position higher than the position.

The inlet 120 may include an inlet pipe 121 , a first flexible pipe 123 , and a first support pipe 125 . The inlet pipe 121 may have a moving space in which the reinforcing fibers 150 move, have a columnar shape, and may be formed to pass through a first position among the upper surfaces of the impregnated part 110 . That is, the reinforcing fibers 150 introduced into the inlet of the inlet pipe 121 may move through the movement space of the inlet pipe 121 and be discharged to the outlet of the inlet pipe 121 . The movement space of the inlet pipe 121 may be filled with resin so that the reinforcing fiber 150 is impregnated with the resin even while the reinforcing fiber 150 moves through the inlet pipe 121 .

The first flexible pipe 123 may be formed of a flexible material and be coupled to the lower portion of the upper surface of the impregnation part 110 while surrounding the inlet pipe 121 to extend to a position lower than the outlet of the inlet pipe 121. have. The first flexible pipe 123 may have a columnar shape or a tubular shape surrounding the inlet pipe 121, and a portion lower than the outlet of the inlet pipe 121 decreases in the lower direction as the area of the horizontal cross-section gradually decreases. may have a shape. For example, as shown in FIGS. 1 and 2 , the first flexible pipe 123 is impregnated in an inverted shape in which the area of the horizontal cross-section from the outlet of the inlet pipe 121 is gradually reduced. It may be coupled to the lower part of the upper surface of the However, the first flexible pipe 123 may have a shape other than the shape of a vial if it has a shape in which the width of the first flexible pipe 123 is narrowed toward a lower portion than the outlet of the inflow pipe 121 while surrounding the inflow pipe 121 . In addition, the lower portion of the first flexible pipe 120 lower than the outlet of the inlet pipe 121 has a shape in which the area of the horizontal cross-section gradually decreases as it goes down, so that the pressure on the lower side of the first flexible pipe 120 decreases. It can also perform a function of maintaining pressure by preventing it from escaping upward. If there is a space spaced apart between the first flexible pipe 123 and the inlet pipe 121, some of these spaces may be filled with numerical values. As described above, since the resin is filled in the impregnation unit 110 to a position higher than the outlet of the inlet pipe 121, the reinforcing fiber 150 discharged through the outlet of the inlet pipe 121 is the first flexible pipe ( 123), the resin is continuously impregnated while passing through the filled resin.

The first support pipe 125 is coupled to the lower portion of the upper surface of the impregnated part 110 while surrounding the first flexible pipe 123 , and a plurality of first penetrations in the portion surrounding the first flexible pipe 123 . Holes H1 may be formed. The end of the first support pipe 125 may be at the same position as the end of the first flexible pipe 123 or may extend further in the lower direction than the end of the first flexible pipe 123 . In the case of FIGS. 1 and 2 , the first support tube 125 has a straight column shape, but the present invention is not limited to this case, and the first support tube 125 is the first flexible tube 123 . If the first through-holes H1 are formed while surrounding the , it may have a different shape.

As described above, since the resin is filled in the impregnation part 110 to a position higher than the outlet of the inflow pipe 121, the resin is also in the spaced apart space between the first support pipe 125 and the first flexible pipe 123. is filled In this case, since the first through-holes H1 are formed in the first support tube 125 , the resin located outside the first support tube 125 among the resins located inside the impregnated part 110 is the first support tube. (125) The first flexible pipe 123 is pressed while moving inside. In this case, the first flexible pipe 123 made of a flexible material pressurizes the space in which the reinforcing fiber 150 moves, so that the resin is more in the reinforcing fiber 150 moving through the inner space of the first flexible pipe 123 . In addition to being impregnated with high efficiency, a tensile force is generated in the reinforcing fibers 150 . Therefore, in the case of using such a structure, sufficient tensile force can be provided to the reinforcing fibers without a separate tensile device in the configuration of transferring the reinforcing fibers 150 from the outside of the reinforcing fiber impregnating device 100 to the inlet 120 . can In addition, the sum of the resin viscosity acting as the compression force and the resistance force of the first flexible pipe 123 is greater than the discharge force acting on the outlet of the first flexible pipe 123, so that the pressure of the reinforcing fiber impregnation device 100 is maintained. can

As such, the reinforcing fibers introduced through the inlet 120 move through the transfer unit 130 to the space in which the resin is inside the impregnating unit 110 to be impregnated with the resin. Even in this case, as described above, since the air pressure inside the impregnating unit 110 is higher than atmospheric pressure, the efficiency of impregnating the reinforcing fibers with the resin inside the impregnating unit 110 may be increased. In addition, the transfer unit 130 may further include a plurality of rollers 131 , 132 , 133 that are formed in the resin-filled space of the impregnated unit 110 and move the reinforcing fiber portion in contact while rotating. . Then, the reinforcing fiber introduced through the inlet 120 moves while contacting the lower portion of the first roller 131 among the rollers, and then moves to the upper portion of the second roller 132 adjacent to the first roller 131 . The reinforcing fibers that move while coming into contact with the second roller 132 and move while contacting with the upper part of the second roller 132 may move while coming into contact with the lower part of the third roller 133 . As described above, the reinforcing fibers are coupled between the rollers in a zigzag form so that the reinforcing fibers move according to the rotation of the rollers. In the embodiment of FIG. 1 , the transfer unit 130 is illustrated for a case including three rollers 131 , 132 , 133 , but the structure of the transfer unit 130 of the present invention is limited in this case. Alternatively, a different number of rollers may be included or the reinforcing fibers may be transferred from the inlet 120 to the outlet 140 in a different manner.

The discharge unit 140 may include a discharge pipe 141 , a second flexible pipe 143 , and a second support pipe 145 . The discharge pipe 141 has a movement space inside which the reinforcing fibers delivered through the transmission unit 130 move, has a column shape, and may be formed to penetrate a second position among the upper surfaces of the impregnation unit 110 . have. The second location may be different from the first location. That is, the reinforcing fibers 155 introduced into the inlet of the discharge pipe 141 may move through the movement space of the discharge pipe 141 and be discharged to the outlet of the discharge pipe 141 . The movement space of the discharge pipe 141 may not be filled with resin.

The second flexible pipe 143 may be formed of a flexible material and be coupled to the lower portion of the upper surface of the impregnated part 110 while surrounding the discharge pipe 141 to extend to a position lower than the inlet of the discharge pipe 141 . The second flexible pipe 143 may have a columnar shape or a tubular shape surrounding the discharge pipe 141, and the portion below the outlet of the discharge pipe 141 has a shape in which the area of the horizontal cross-section gradually increases as it goes down in the lower direction. can have For example, as shown in FIGS. 1 and 3 , the second flexible pipe 143 has a shape in which the area of the horizontal cross-section gradually increases from the inlet of the discharge pipe 141 and is located in the lower part of the upper surface of the impregnated part 110 . may be connected. However, if the second flexible pipe 143 has a shape that increases in width toward a lower portion than the inlet of the discharge pipe 141 while surrounding the discharge pipe 141, it may have a shape other than the shape of FIGS. 1 and 3 . have. If there is a space spaced apart between the second flexible pipe 143 and the discharge pipe 141, some of this space may be filled with resin. As described above, since the resin is filled in the impregnation part 110 to a position higher than the inlet of the discharge pipe 141, the reinforcing fibers introduced through the inlet of the discharge pipe 141 are filled in the second flexible pipe 143. As it passes through the resin, the resin is continuously impregnated.

The second support pipe 145 is coupled to the lower portion of the upper surface of the impregnated part 110 while surrounding the second flexible pipe 143 , and a plurality of second penetrations in the portion surrounding the second flexible pipe 143 . Holes H2 may be formed. The end of the second support pipe 145 may be at the same position as the end of the second flexible pipe 143 or may extend further in the lower direction than the end of the second flexible pipe 143 . In the case of FIGS. 1 and 3 , the second support pipe 145 is shown in the shape of a straight column, but the present invention is not limited to this case, and the second support pipe 145 is the second flexible pipe 143 . If the second through-holes (H2) are formed while enclosing it, it may have a different shape.

As described above, the resin is filled in the interior of the impregnation part 110 to a position higher than the inlet of the discharge pipe 141, so the spaced space between the second support pipe 145 and the second flexible pipe 143 is also filled with resin. have. In this case, since the second through-holes H2 are formed in the second support pipe 145 , the resin positioned outside the second support pipe 145 among the resins positioned inside the impregnated part 110 is the second support pipe. (145) The second flexible pipe 143 is pressed while moving inside. In this case, the second flexible pipe 143 made of a flexible material pressurizes the space in which the reinforcing fibers move, so that the resin can be impregnated with higher efficiency into the reinforcing fibers moving through the inner space of the second flexible pipe 143. In addition to this, a tensile force is generated in the reinforcing fibers. Therefore, in the case of using such a structure, sufficient tensile force can be provided to the reinforcing fibers 155 discharged through the discharge unit 140 without a separate tensioning device on the outside of the reinforcing fiber impregnating device 100 . In addition, the sum of the resin viscosity acting as the compression force and the resistance force of the second flexible pipe 143 is greater than the discharge force acting on the inlet of the second flexible pipe 143, so that the pressure of the reinforcing fiber impregnation device 100 is maintained. can In addition, the resin positioned outside the second support pipe 145 among the resins positioned inside the impregnation part 110 presses the second flexible pipe 143 while moving into the second support pipe 145 to reinforce the reinforcement. As the fiber passes through the inside of the second flexible pipe 143, it may also have a function of squeezing and squeezing the excess resin in the sufficiently impregnated reinforcing fiber.

The reinforcing fiber impregnation apparatus 100 may further include a pressure sensor inside the impregnation part 110 . For example, as described above, when the impregnating part 110 is further provided with a resin supply means for supplying a resin therein, the pressure sensor is configured to interlock with the resin supply means, so that the optimum for the reinforcing fiber is The pressure inside the impregnated part 110 may be controlled so that the tensile force acts.

As described above, an optimal embodiment has been disclosed in the drawings and the specification. Although specific terms are used herein, they are used only for the purpose of describing the present invention, and are not used to limit the meaning or scope of the present invention described in the claims. Therefore, it will be understood by those skilled in the art that various modifications and equivalent other embodiments are possible therefrom. Accordingly, the true technical protection scope of the present invention should be defined by the technical spirit of the appended claims.

Claims (7)

The impregnated part is filled with resin in the sealed space inside;
an inlet pipe having a movement space in which the reinforcing fiber moves, having a column shape, and passing through a first position among the upper surfaces of the impregnated part;
It has a flexible material, is coupled to the lower part of the upper surface of the impregnated part while surrounding the inlet pipe, and extends to a position lower than the outlet of the inlet pipe, and the area of the horizontal cross section is lower than the outlet of the inlet pipe as it goes down. a first flexible pipe having a gradually decreasing shape; and
a first support pipe coupled to a lower portion of the upper surface of the impregnated part while surrounding the first flexible pipe, the first support pipe having a plurality of first through-holes formed in a portion surrounding the first flexible pipe;
a discharge pipe having a movement space in which the reinforcing fiber moves, having a columnar shape, and passing through a second position of the upper surface of the impregnated part; and
and a transmission unit formed in a space filled with resin inside the impregnation unit and transmitting the reinforcing fibers introduced through the outlet of the inlet pipe in the direction of the inlet of the discharge pipe,
Reinforcing fibers are introduced from the outside to the inside of the impregnated part through the inlet pipe, and the introduced reinforcing fibers are impregnated while passing through the resin-filled portion and the delivery part inside the impregnated part, and the resin-impregnated reinforcing fibers are It is discharged from the inside of the impregnation part to the outside through the discharge pipe,
The impregnated part,
The space between the surface of the resin filled inside the impregnation part and the upper surface of the impregnation part has an air pressure greater than atmospheric pressure, and the resin is higher than the outlet of the inlet pipe and the inlet of the discharge pipe located inside the impregnation part. Reinforcing fiber impregnation device, characterized in that it is filled. According to claim 1,
Characterized in that the resin is filled to a position higher than the outlet of the inlet pipe in the inner space of the first flexible pipe surrounding the inlet pipe and the internal space of the first support pipe surrounding the first flexible pipe Reinforcement fiber impregnation device. According to claim 1, wherein the reinforcing fiber impregnating device,
It has a flexible material and is coupled to the lower portion of the upper surface of the impregnated part while surrounding the discharge pipe and extends to a position lower than the inlet of the discharge pipe, and the area of the horizontal cross-section gradually increases as the lower part of the discharge pipe goes down a second flexible pipe having a shape; and
It characterized in that it further comprises a second support pipe coupled to the lower portion of the upper surface of the impregnated part while surrounding the second flexible pipe, the second support pipe having a plurality of second through-holes formed in a portion surrounding the second flexible pipe. Reinforcing fiber impregnation device. 4. The method of claim 3,
Reinforcement fiber, characterized in that the resin is filled in the inner space of the second flexible pipe surrounding the discharge pipe and the internal space of the second support pipe surrounding the second flexible pipe to a position higher than the inlet of the discharge pipe. impregnation device. According to claim 1,
The reinforcing fiber impregnation device, characterized in that the inlet pipe is filled with the resin. The impregnated part is filled with resin in the sealed space inside;
an inlet pipe having a movement space in which the reinforcing fiber moves, having a column shape, and passing through a first position among the upper surfaces of the impregnated part;
a discharge pipe having a movement space in which the reinforcing fiber moves, having a columnar shape, and passing through a second position of the upper surface of the impregnated part;
It has a flexible material and is coupled to the lower portion of the upper surface of the impregnated part while surrounding the discharge pipe and extends to a position lower than the inlet of the discharge pipe, and the area of the horizontal cross-section gradually increases as the lower part of the discharge pipe goes down a second flexible pipe having a shape; and
a second support pipe coupled to a lower portion of the upper surface of the impregnated part while surrounding the second flexible pipe, the second support pipe having a plurality of second through-holes formed in a portion surrounding the second flexible pipe; and
and a transmission unit formed in a space filled with resin inside the impregnation unit and transmitting the reinforcing fibers introduced through the outlet of the inlet pipe in the direction of the inlet of the discharge pipe,
Reinforcing fibers are introduced from the outside to the inside of the impregnated part through the inlet pipe, and the introduced reinforcing fibers are impregnated while passing through the resin-filled portion and the delivery part inside the impregnated part, and the resin-impregnated reinforcing fibers are It is discharged from the inside of the impregnation part to the outside through the discharge pipe,
The impregnated part,
The space between the surface of the resin filled inside the impregnation part and the upper surface of the impregnation part has an air pressure greater than atmospheric pressure, and the resin is higher than the outlet of the inlet pipe and the inlet of the discharge pipe located inside the impregnation part. Reinforcing fiber impregnation device, characterized in that it is filled. 7. The method of claim 6,
Reinforcement fiber, characterized in that the resin is filled in the inner space of the second flexible pipe surrounding the discharge pipe and the internal space of the second support pipe surrounding the second flexible pipe to a position higher than the inlet of the discharge pipe. impregnation device.

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