WO2017146362A1

WO2017146362A1 - Fiber-reinforced composite manufacturing apparatus

Info

Publication number: WO2017146362A1
Application number: PCT/KR2016/014414
Authority: WO
Inventors: 최재훈; 박종성; 김희준; 송강현; 이희정; 문영이
Original assignee: (주)엘지하우시스
Priority date: 2016-02-24
Filing date: 2016-12-09
Publication date: 2017-08-31
Also published as: KR20170099548A

Abstract

A fiber-reinforced composite manufacturing apparatus, which serves to manufacture a fiber-reinforced composite by laminating and bonding unidirectional prepregs, comprises a laminating part, a bonding part, and a loading part. The laminating part holds prepregs and laminates the prepregs to allow the fibers of the prepregs to be oriented toward the longitudinal or lateral direction, or laminates the prepregs to allow the fibers of the prepregs to cross one another in the longitudinal and lateral directions. The bonding part includes: a heating member that receives the laminated prepregs from the laminating part and applies heat to the laminated pre-pregs so as to melt the prepregs; a pressing member that presses the prepregs molten by the heating member so as to mold a fiber-reinforced composite; and a cooling member that cures the fiber-reinforced composite molded by the pressing member. The loading part receives a fiber-reinforced composite from the bonding part, and holds and loads the fiber-reinforced composite in a storage box.

Description

Equipment for manufacturing fiber reinforced composite

The present invention relates to an apparatus for producing an improved fiber-reinforced composite to automate the manufacturing process of the fiber-reinforced composite to reduce the working time.

In general, fiber-reinforced composites having a polymer resin as a matrix are widely used in the mechanical, electronic, and building industries because they are lightweight and have excellent mechanical properties such as strength and rigidity, heat resistance and corrosion resistance. Such fiber-reinforced composites are often obtained by laminating and laminating unidirectional prepregs obtained by impregnating a thermosetting resin into a reinforcing fiber to obtain a molded article.

In this case, the fiber-reinforced composite material has a large difference in physical properties according to the orientation, so that the fiber direction of the one-way prepreg is laminated in the longitudinal or transverse direction depending on the characteristics of the applied product, or the fiber direction of the prepreg is the longitudinal direction. And after laminating so as to cross the transverse direction should be laminated.

However, in the related art, there is no separate device capable of automatically performing the laminating operation so that the fiber direction of the one-way prepreg is directed in the longitudinal direction or the transverse direction, thereby increasing the number of working hours and increasing the working time.

An object of the present invention is to provide an apparatus for producing a fiber-reinforced composite material that can be laminated so that the fiber direction of the prepreg cross-aligned, and to automate the process of manufacturing the fiber-reinforced composite material.

The apparatus for producing a fiber-reinforced composite material according to the present invention for achieving the above object is to manufacture a fiber-reinforced composite material by laminating and laminating unidirectional prepregs, and includes a lamination part, a lamination part, and a loading part. The stacking portion is gripped by prepregs and laminated so that the fiber direction of the prepreg faces in the longitudinal or transverse direction, or laminated so that the fiber directions of the prepreg cross in the longitudinal and transverse directions. The lamination part receives the prepregs stacked from the lamination part and applies heating to the laminated prepregs to melt the prepregs, and presses the prepregs melted by the heating members to form a fiber-reinforced composite. And a cooling member for curing the pressing member and the fiber-reinforced composite molded by the pressing member. The loading part receives the fiber reinforced composite material from the lamination part, and holds the fiber reinforced composite material in the storage box.

According to the present invention, since the fiber directions of the prepreg can be laminated so as to cross-align at different angles, the fiber-reinforced composite having improved strength can be obtained.

In addition, since the process of manufacturing the fiber-reinforced composite material is automated, the working time is reduced and mass production is possible, thereby reducing the manufacturing cost.

In addition, it is formed to control the gap of the pressing member according to the thickness of the laminated prepreg, it is possible to always apply a pressing force of a predetermined size to the laminated prepreg when laminated to obtain a fiber-reinforced composite having the desired physical properties It becomes possible.

1 is a top side view of a manufacturing apparatus of a fiber reinforced composite according to an embodiment of the present invention.

Figure 2 is a side view showing an extract of the laminate in the apparatus for producing a fiber-reinforced composite material shown in FIG.

Figure 3 is a side view showing an extract of the lamination in the apparatus for producing a fiber-reinforced composite material shown in FIG.

Figure 4 is a side view showing an extract of the loading portion in the apparatus for producing a fiber-reinforced composite material shown in FIG.

Hereinafter, with reference to the accompanying drawings, it will be described in detail with respect to the manufacturing apparatus of the fiber-reinforced composite according to the preferred embodiment. Here, the same reference numerals are used for the same configurations, and detailed descriptions of well-known functions and configurations that may unnecessarily obscure the repeated description and the subject matter of the invention will be omitted. Embodiments of the invention are provided to more completely describe the present invention to those skilled in the art. Accordingly, the shape and size of elements in the drawings may be exaggerated for clarity.

As shown in FIG. 1, the apparatus 100 for manufacturing a fiber reinforced composite includes a lamination part 110, a lamination part 120, and a mounting part 130. Here, the apparatus 100 for manufacturing a fiber reinforced composite is used to manufacture the fiber reinforced composite 10 by laminating and laminating unidirectional prepregs 1.

The stacking unit 110 holds the prepreg 1 and laminates the fiber direction of the prepreg 1 in the longitudinal direction or the transverse direction, or the fiber direction of the prepreg 1 faces the longitudinal direction and the transverse direction. Stacked so as to intersect. Here, the longitudinal direction means the Y-axis direction from the bottom surface, and the transverse direction means the X-axis direction from the bottom surface.

For example, when four prepregs 1 are laminated in total, the fiber directions of the prepregs 1 may all be stacked in the longitudinal direction only, and the fiber directions of the prepregs 1 are all in the transverse direction. It can also be stacked so that it faces up. And the prepreg 1 of the odd layer may be arrange | positioned so that a fiber direction may face a longitudinal direction, and the prepreg 1 of an even layer may be arrange | positioned so that a fiber direction may face a transverse direction. In addition, the prepreg 1 of 1, 2 layers may be arrange | positioned so that a fiber direction may face a longitudinal direction, and the prepreg 1 of 3 and 4 layers may be arrange | positioned so that a fiber direction may face a transverse direction. That is, the position in the fiber direction of the prepreg 1 may vary depending on the needs of the implementer, and the number of the prepregs 1 to be stacked is not limited.

On the other hand, the prepreg (1) can be obtained by impregnating a liquid resin in the reinforcing fibers of the fabric form and then drying or semi-curing, it may be made in a sheet shape. In this case, in order to have high physical properties, it is preferable to use continuous fibers as reinforcing fibers.

The lamination part 120 includes a heating member 121, a pressing member 122, and a cooling member 123.

The heating member 121 receives the stacked prepregs 1 from the stacking unit 110 and heats the stacked prepregs 1 to melt the prepregs 1. Here, the heating member 121 may be made of a heating element, it is preferable to apply heat above the melting point of the prepreg (1).

More specifically, the heating member 121 preferably heats the prepregs 1 to a temperature of 220 ~ 240 ℃. This is because when the heating temperature of the prepregs 1 is less than 220 ° C., there is a fear that sufficient preheating may not be performed and thus bonding may not be performed smoothly. On the contrary, when the heating temperature of the prepregs 1 exceeds 240 ° C, the resin of the prepreg 1 may be overheated and carbonized, or the orientation of the fibers may be disturbed. As the heat more than the melting point is transferred to the prepregs 1 by the heating member 121, the stacked prepregs 1 are in a molten state.

The pressing member 122 presses the prepregs 1 melted by the heating member 121 to form the fiber-reinforced composite 10. Here, the pressing member 122 may be formed of a pair of rubber rolls spaced apart in the vertical direction in order to prevent damage to the prepreg 1 during pressing.

More specifically, the pressing member 122 is preferable to press the molten prepreg (1) to the size of 8 ~ 10bar. This is because the adhesive force of the prepregs 1 may drop when the magnitude of the pressing force is less than 8 bar, and the resin of the prepreg 1 may flow out to the outside when the pressing force exceeds 8 bar. As the prepreg 1 melted by the pressing member 122 is pressed, the stacked prepregs 1 are compressed and molded into one fiber-reinforced composite 10.

The cooling member 123 cures the fiber-reinforced composite material 10 formed on the pressing member 122. Here, the cooling member 123 may be formed in various forms such as a spray nozzle for spraying the cooling water in a spray method, an air blower for spraying air, and a roller supplied with cooling water therein.

Cooling member 123 is preferably to harden the laminated fiber-reinforced composite material 10 below the melting point. More specifically, it is preferable that the cooling member 123 cools the fiber reinforced composite material 10 at a temperature of 10 to 15 ° C. This is because when the cooling temperature of the fiber-reinforced composite material 10 exceeds 15 ° C., sufficient cooling may not be performed, and peeling may occur when laminating.

The loading unit 130 receives the fiber reinforced composite material 10 from the lamination part 120, and grips the fiber reinforced composite material 10 to be loaded in a storage box. As such, the fiber-reinforced composite material 10 is formed to be automatically loaded in the storage box through the stacking unit 130, thereby reducing the work manpower.

As described above, the manufacturing apparatus 100 of the fiber reinforced composite material can be laminated so that the fiber directions of the prepreg 1 are arranged at different angles, so that the fiber reinforced composite material 10 with improved strength can be obtained. do.

In addition, since the process of manufacturing the fiber-reinforced composite material 10 is automated, the working time is reduced and mass production is possible, thereby reducing the manufacturing cost.

FIG. 2 is a side view showing an extract of a laminate in the apparatus for manufacturing the fiber reinforced composite shown in FIG. 1. The configuration and operation of the stacking unit 110 will be described with reference to FIGS. 1 and 2 as follows.

1 and 2, the stacking unit 110 includes a stacking table 111, a stacking table 112, a first conveyor 113, a stacking member 114, and a first gripper ( 115).

The prepregs 1 are stacked on the stacking table 111. Here, the prepregs 1 may be stacked on the stacking table 111 through the stacking member 114, which will be described later.

The prepregs 1 are stacked on an upper portion of the stacking table 112, and may be disposed on both sides of the stacking table 111. At this time, the prepreg 1 in which the fiber direction is disposed only in the longitudinal direction is loaded on the stacking table 112 disposed on one side of the stacking table, and the fiber direction is transverse on the stacking table 112 disposed on the other side of the stacking table. The prepregs 1 arranged only in the direction can be loaded.

The first conveyor 113 transfers the prepregs 1 stacked on the stacking table 111 to the lamination unit 120, and is disposed side by side with the stacking table 111 on one side of the stacking table 111. Can be.

The stacking member 114 holds the prepreg 1 on the stacking table 112 and stacks the prepreg 1 on the stacking table 111 such that the fiber direction of the prepreg 1 faces in the longitudinal or transverse direction. Laminate so that the fiber direction of 1) crosses the longitudinal direction and the transverse direction. Here, the stacking member 114 may be formed to be movable in the longitudinal direction and the vertical direction in order to grip the prepreg 1 on the stacking table 112 to move on the stacking table 111.

On the other hand, the stacking member 114 may be formed in a pneumatic manner to hold the prepreg (1). As the laminated member 114 is formed in the pneumatic manner, when compressed air is introduced into the laminated member 114, one prepreg 1 can be gripped by pressure, and one prepreg 1 After moving to the stacking table 111 in the gripped state, the compressed air inside the stacking member 114 may flow out to prepreg 1 to be lowered to stack the prepregs 1 on the stacking table 111. It becomes possible.

At this time, only one prepreg 1 arranged in the longitudinal direction is loaded on one stacking table 112, and only the prepreg 1 arranged in the transverse direction is loaded on the other stacking table 112. When the) is moved in the longitudinal direction and the prepreg 1 is held in the desired direction and subsequently laminated on the stacking table 111, it is possible to form the fiber-reinforced composite material 10 having various orientations when laminating.

The first gripper 115 grips the prepregs 1 stacked on the stacking table 111 and moves them onto the first conveyor 113. Here, the first gripper 115 may be formed to be movable in the transverse direction and the vertical direction in order to move the prepregs 1 stacked on the stacking table 111 to the first conveyor 113.

At this time, since the prepregs 1 stacked on the stacking table 111 have a multi-layered structure, the prepregs 1 may not be held by all of the prepregs 1 when the pneumatics are stacked in the pneumatic manner. Therefore, it is preferable that the first gripper 115 is formed in the form of tongs. That is, when the upper and lower portions of the prepreg 1 are gripped from the side by the first gripper 115 in the form of tongs and then moved laterally, all of the prepregs 1 stacked on the stacking table 111 are first moved. It can be moved to the conveyor 113.

Meanwhile, in order to improve the working speed, the stacking table 111, the stacking table 112, the stacking member 114, and the first gripper 115 are formed in pairs with the first conveyor 113 interposed therebetween. Correspondingly arranged.

3 is a side view showing an extract of the lamination in the apparatus for producing a fiber-reinforced composite material shown in FIG. The configuration and operation of the lamination unit 120 will be described with reference to FIGS. 1 and 3 as follows.

As illustrated in FIGS. 1 and 3, the lamination part 120 may further include a first transfer member 124 and a second transfer member 125.

The first conveying member 124 is a first driving roller 124a and the first driven roller 124b which are spaced apart from the left and right, respectively, and are connected to the outer circumferential surfaces of the first driving roller 124a and the first driven roller 124b. One belt 124c is provided.

The second conveying member 125 is a second drive roller 125a and a second driven roller 125b, and a second drive, spaced apart from each other below the first driving roller 124a and the first driven roller 124b, respectively. A second belt 125c connected to the outer circumferential surface of the roller 125a and the second driven roller 125b is provided.

Accordingly, when the first and

second driving rollers

124a and 125a are driven, the first and second driven

rollers

124a and 124b rotate, and the first and

second driving rollers

124a and 125a and the first and

second driving rollers

124a and 125a rotate. The first and

second belts

124c and 125c connected to the outer circumferential surfaces of the driven

rollers

124a and 124b also rotate together. Therefore, when the prepregs 1 stacked between the first and

second belts

124c and 125c are supplied through the first conveyor 113, the laminated prepregs 1 are transferred without a separate transfer means and the lamination process is performed. You can do it.

In this case, the first and

second transfer members

124 and 125 may be disposed in the discharge part of the first conveyor 113 in order to automatically receive the prepregs 1 passing through the first conveyor 113. In addition, it is preferable that the lamination part 120 is disposed in the chamber 126 so that foreign matter does not flow into the lamination during lamination.

Figure 4 is a side view showing an extract of the loading portion in the apparatus for producing a fiber-reinforced composite material shown in FIG. Referring to Figures 1 and 4 the configuration and operation of the loading unit 130 as follows.

As shown in FIG. 1 and FIG. 4, the stacking unit 130 includes a second conveyor 131 and a second gripper 132.

The second conveyor 131 serves to transport the fibre-reinforced composite material 10 formed by the lamination part 120 to the storage box. To this end, the second conveyor 131 is preferably disposed in the discharge portion of the stacking portion (120).

The second gripper 132 grips the fiber-reinforced composite material 10 transported on the second conveyor 131 and serves to load the storage box. Here, the second gripper 132 may be formed to be movable in the transverse direction and up and down directions to grip the fiber reinforced composite material 10 transferred on the second conveyor 131 to move to the loading unit 130. . And, since the fiber-reinforced composite material 10 disposed on the second conveyor 131 has one body, the second gripper 132 may be made of a pneumatic method or in the form of tongs.

According to another embodiment, the pressing member 122 may be formed to be adjustable in the vertical direction. At this time, the pressing member 122 is disposed inside the first and

second belts

124c and 125c of the first and second conveying

members

124 and 125, respectively, and the first and the

second belts

124c and 125c. It may be formed to abut. Accordingly, it is preferable that the pair of pressing members 122 move in different directions, or only one pressing member 122 move in the vertical direction.

As the pressure member 122 is formed to be adjustable in the vertical direction as described above, the gap of the pressure member 122 can be adjusted according to the thickness of the stacked prepregs 1, so that sufficient lamination can be performed. . That is, the orientation of the fiber may be disturbed or the resin overflows according to the magnitude of the pressing force. When the gap is formed to adjust the gap of the pressing member 122 according to the thickness of the prepreg 1 laminated as described above, the lamination is performed upon lamination. It is possible to always apply a pressing force of a predetermined size to the prepreg 1 is obtained to obtain the fiber-reinforced composite material 10 having the desired physical properties.

Although the present invention has been described with reference to one embodiment shown in the accompanying drawings, this is merely exemplary, and it will be understood by those skilled in the art that various modifications and equivalent other embodiments are possible. Could be. Accordingly, the true scope of protection of the invention should be defined only by the appended claims.

Claims

An apparatus for manufacturing a fiber reinforced composite for manufacturing a fiber reinforced composite by laminating and laminating unidirectional prepregs,

A stacking unit for holding the prepreg and laminating the fiber direction of the prepreg toward the longitudinal direction or the transverse direction, or laminating the cross direction so that the fiber direction of the prepreg crosses the longitudinal direction and the transverse direction;

Pressurized to receive the prepregs stacked from the laminated portion and to apply heat to the laminated prepregs to melt the prepregs, and to press the prepregs melted by the heating member to form a fiber-reinforced composite A lamination portion including a member and a cooling member for curing the fiber-reinforced composite molded by the pressing member; And

A loading unit receiving the fiber-reinforced composite material from the lamination part and holding the fiber-reinforced composite material and loading it in a storage box;

Apparatus for producing a fiber reinforced composite material comprising a.
The method of claim 1,

The lamination part

A stacking table on which the prepregs are stacked;

A stacking table on which the prepregs are stacked and disposed on both sides of the stacking table;

A first conveyor which receives the prepregs stacked on the stacking table and transfers the prepregs to the stacking unit;

Holding the prepreg on the loading table and laminating the fiber direction of the prepreg in the longitudinal direction or the transverse direction on the lamination table, or laminating the fiber direction of the prepreg in the longitudinal direction and the transverse direction. Laminated member to be,

And a first gripper for holding the prepregs stacked on the lamination table and moving the prepregs onto the first conveyor.
The method of claim 1,

The lamination part

A first conveying member having a first driving roller and a first driven roller spaced apart from the left and right, and a first belt connected to an outer circumferential surface of the first driving roller and the first driven roller,

A second drive roller and a second driven roller spaced apart from each other below the first drive roller and the first driven roller, and a second belt connected to an outer circumferential surface of the second drive roller and the second driven roller. Apparatus for producing a fiber-reinforced composite, characterized in that it comprises a conveying member.
The method of claim 1,

A second conveyor configured to receive the fiber reinforced composite material molded by the lamination part and to transfer the loading part to the storage box;

Apparatus for producing a fiber-reinforced composite material comprising a second gripper for holding the fiber-reinforced composite material to be transported on the second conveyor to be loaded in the storage box.
The method of claim 1,

The pressing member is an apparatus for manufacturing a fiber-reinforced composite, characterized in that the position is formed to be adjustable in the vertical direction.