KR101860016B1 - Frp three dimensional artwork having reinforced core and manufacturing method thereof - Google Patents

Abstract

A method of fabricating a glass fiber-reinforced plastic sculpture having a reinforcing core according to an embodiment of the present invention includes the steps of making a prototype of a sculpture; Fabricating a plurality of pieces of outerwear; Adding a thickener to the inner wall of the outer jacket; Wrapping the reinforcing core in a plurality of pieces of the jacket, and fabricating a plurality of pieces of the jacket; Removing the thickness forming material from the outer surface; A step of assembling and arranging a plurality of pieces of outer jacket on the outside of the frame; A step of injecting glass fiber reinforced plastic melted between a jacket and an insole to produce a sculpture; And positioning the reinforcing core at a position where the molding is installed, and fixing the plural pieces of the molding to the outside of the reinforcing core. The method of manufacturing a glass fiber reinforced plastic molding having such a reinforcing core reinforces the structure of a molding using a material vulnerable to deflection due to eccentric load as in the case of a conventional glass fiber reinforced plastic so that when the eccentric load acts on the molding, The manufacturing shape can be maintained as it is, and the cost efficiency due to the addition of the reinforcing structure can be increased in terms of the production cost.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a glass fiber-

More particularly, the present invention relates to a glass fiber-reinforced plastic molding having a reinforcing core capable of maintaining a stable shape of a molding provided on the ground and providing a feeling of beauty by the shape, and a manufacturing method thereof ≪ / RTI >

A sculpture is an object made into a specific shape or shape using various materials. Sculptures include iron or stone structures, or statues, installed in parks and schools.

The main materials of these sculptures are mainly wood, stone, iron, copper, etc. Almost all the materials present in nature can be used together. In order to stably install the molding, the fixing structure of the molding to the floor must be rigid, and the load must be balanced and balanced.

However, if the eccentric load is applied due to the feature of the unique shape of the molding, there is a possibility that deformation occurs due to a part of the eccentric load sagging to the ground.

In order to prevent this, it is possible to erect the auxiliary support below the sculpture, but such an additional structure detracts from the features of the sculpture, thereby degrading the aesthetics and dignity.

In addition, although the molding material is resistant to deflection in order to prevent the eccentric load from being sagged, the molding material utilizing the unique texture of the glass fiber reinforced plastic material such as glass fiber reinforced plastic is still vulnerable to the eccentric load.

Korean Patent Application No. 10-2007-0113331 (2007.11.07)

One embodiment of the present invention reinforces the structure of a molding using a material that is susceptible to deflection of an eccentric load like a conventional glass fiber reinforced plastic so that the shape of the molding can be maintained as it is when an eccentric load acts on the molding A glass fiber reinforced plastic molding having a reinforcing core and a method for manufacturing the same.

According to an aspect of the present invention, there is provided a method of manufacturing a glass fiber-reinforced plastic molding having a reinforcing core, the method comprising: forming a prototype of a molding; Using the circular shape to manufacture a plurality of pieces of the detachable knot having an inner wall shape such as the circular shape; Adding a thickness-forming material detachable from an inner wall of the jacket to the inner wall of the outer jacket, and determining a thickness of the molding to be manufactured by the thickness of the thickening material; And a reinforcing core extending from the one end to the other end of the jacket along the center line of the jacket and spaced apart from the thickness forming material, The method comprising the steps of: preparing a plurality of fragments of a chewing gum by injecting a material for producing a chewing gum; Separating the outer jacket from the bobbin and removing the thick forming material from the outer jacket; Positioning the plurality of pieces of the outer jacket while assembling and arranging the outer jacket; Inserting a glass fiber reinforced plastic melted between the outer surface and the inset to manufacture a molding capable of being divided into a plurality of pieces; And positioning the reinforcing core at a position where the molding is installed, fixing the position of the plurality of pieces of the molding to the outside of the reinforcing core, and injecting a filler between the inner wall of the molding and the reinforcing core A method of making a glass fiber-reinforced plastic sculpture having a reinforcing core including the reinforcing core may be provided.

The molding and the reinforcing core may be shaped to apply an eccentric load to a position where the position is fixed.

The top and bottom frames are made of two pieces using molding sand and reinforcing bars. The reinforcing bars are disposed so that the reinforcing bars are exposed to the outside, and the two pieces of the top and bottom frames can be joined or separated by the molding of the reinforcing bars .

A lug for movement may be provided on the outer surface of the outer jacket and the outer jacket.

A polymer may be used as a prototype of the molding, and soil may be used as the thickening material.

A filler is injected between the inner wall of the molding and the reinforcing core, and a steel material such as iron or stainless steel is used as the reinforcing core. The reinforcing core may have a circular or square hollow cross section.

A base for fixing the reinforcing core may be disposed at a point where the molding is installed.

According to another aspect of the present invention, there is provided a glass fiber reinforced plastic sculpture according to the above-described method of manufacturing a glass fiber-reinforced plastic sculpture having the reinforcing core, comprising: a base fixedly positioned on the ground; A reinforcing core fixed on the base; And a glass fiber reinforced plastic molding disposed along the reinforcing core so as to be able to be supported by the reinforcing core while surrounding the reinforcing core.

According to one embodiment of the present invention as described above, when the eccentric load acts on the molding, reinforcing the structure of the molding using materials that are vulnerable to deflection due to eccentric load, such as a conventional glass fiber reinforced plastic, The cost can be reduced by adding the reinforcing structure in terms of the production cost, and the filler can be injected between the molding and the reinforcing core to reinforce the strength.

1 is a flowchart illustrating a method of manufacturing a glass fiber-reinforced plastic molding having a reinforcing core according to an embodiment of the present invention.
FIG. 2 is a conceptual view of the process of manufacturing the outer jacket and the inner jacket of FIG. 1. FIG.
FIG. 3 is a conceptual diagram for assembling a glass fiber-reinforced plastic molding and assembling a jacket, an infertile, and a reinforcing core, following FIG.
Figs. 4A and 4B are cross-sectional views for fabricating a glass fiber-reinforced plastic molding between the jacket and the inset of Fig.
FIG. 5 is a layout conceptual diagram when a pair of glass fiber-reinforced plastic sculptures manufactured in FIGS. 4A and 4B are joined.
6 is a cross-sectional view of a glass fiber-reinforced plastic molding having a reinforcing core according to an embodiment of the present invention.

Various embodiments of the present invention will now be described by way of specific embodiments illustrated in the accompanying drawings. The differences in the embodiments of the present invention described below are to be understood as mutually exclusive matters. That is, the specific features, structures, and characteristics described may be implemented in other embodiments in accordance with one embodiment without departing from the spirit and scope of the present invention, and the position of the individual components within each disclosed embodiment It is to be understood that the present invention may be embodied in many other specific forms without departing from the spirit or essential characteristics thereof.

A method of manufacturing a glass fiber reinforced plastic molding having a reinforcing core according to an embodiment of the present invention is a method of manufacturing a glass fiber reinforced plastic molding having a reinforcing core by arranging a reinforcing core therein to prevent sagging It is a method of making sculptures that can be done. In order to prevent deformation of the molding product due to sagging, the molding product is manufactured according to the following manufacturing procedure.

As shown in FIGS. 1 to 5, according to a method of manufacturing a glass fiber-reinforced plastic molding having reinforcing cores according to an embodiment of the present invention, a step S1 of forming a mold 100 of a molding, (S2) of producing a plurality of pieces 110 of deformable pieces having the same inner wall shape as the shape of the circular shape 100 by using the inner wall of the outer case 110 (Step S3) of adding the thickness of the molding to be manufactured by adding the ashes 115 to the inner walls of the openings 110 and 111 in order. At this time, the thickness of the glass fiber-reinforced plastic molding 160 is determined by the thickness of the thickness-forming material 115.

In this case, the prototype 100 of the molding is a molding form used for manufacturing the tops 110 and 111, and may be manufactured using a polymer series as described later, but the present invention is not limited thereto, and clay Or a plaster circle may be used.

After the prototype 100 is formed, the molds surrounding the prototype 100 may be enclosed with the mold 100, and the molds may be put into the molds to manufacture the respective outlets 110 and 111. In this case, although the formwork is not shown, the formwork is generally the same as the form used to construct the concrete structure, and the reinforcement 131 for increasing the rigidity of the castles 110 and 111 together with the foundry sand may be disposed.

These molds are respectively disposed to be used for manufacturing the outfits 110 and 111, and a separating material (not shown) for setting a boundary for disassembly is disposed near the center so that the mold can be divided into a plurality of pieces, Can be manufactured at once. That is, the tops 110 and 111 may be divided into a plurality of pieces with the separating member 135 bounded. These front and rear covers 110 and 111 may have a structure that can be assembled again. In this embodiment, the exposed reinforcing bars 131 are used by exposing the reinforcing bars 131 to the outside. At this time, the outlets 110 and 111 can be manufactured by dividing each half by each half mold using the circle 100 divided into half halves.

After the outer casings 110 and 111 are manufactured as described above, a thickness forming material 115 is added to the inner walls of the outer casings 110 and 111. As the thickness-forming material 115, soil can be used. The thickness of the glass fiber-reinforced plastic molding 160 is determined according to the thickness of the soil. That is, the thickness forming material 115 separates the upper and lower frames 110 and 111 from the below-described frames 120 and 121. The spacing between the tops 110 and 111 and the bottoms 120 and 121 determines the thickness of the molding.

After the thickness forming material 115 is added to the tops 110 and 111, the following manufacturing process proceeds.

In the present embodiment, the reinforcing core 150 extending along the center line of the outer casings 110 and 111 from one end to the other end of the outer casings 110 and 111 and spaced apart from the thickness forming material 115 A plurality of pieces of decomposable pieces of foam material 120 are wound around a plurality of pieces of the top and bottom parts 110 and 111 and then the material for manufacturing the parts 120 and 121 is inserted between the thick material 115 and the reinforcing core 150 120, and 121 (S4). The reinforcing core 150 may be formed by bending along the curved shape of the tops 110 and 111. Since the reinforcing core 150 is provided without cutting and welding, the durability of the reinforcing core 150 can be improved compared with a reinforcing corner formed by bending by conventional cutting and welding.

At this time, the intellectuals 120 and 121 may be manufactured using molding sand, concrete, gypsum, etc., as in the case 110 and 111. In this embodiment, mainly the foundry sand and the reinforcing steel 131 are used. Also, the intellectual desks 120 and 121 are made into a plurality of mutually resolvable pieces. That is, the in flogs 120 and 121 may be manufactured respectively in a structure in which they are split and disassembled on both sides or on the respective sides 110 and 111, respectively.

To this end, a separating material (not shown) for defining the boundaries for separating into a plurality of pieces is provided between the inner wall of the outer casings 110 and 111 and the reinforcing core 150, It may be disposed at the time of assembly.

The molding sand for the first and second frames 120 and 121 is put between the thickener 115 and the reinforcing core 150 added to the first and second outer casings 110 and 111 and cured for a predetermined period of time to separate the first and second outer casings 110 and 111 , And the grounds 120 and 121 are revealed, the soil 120 and 121 are revealed. As described above, a plurality of pieces of the tricks 120 and 121 may be provided.

In this embodiment, the steps 110 and 111 are separated from the in fl aters 120 and 121 and the thickness forming material 115 is removed from the outer casings 110 and 111 S5).

Since the thickness forming material 115 is the soil applied to the openings 110 and 111, it can be easily separated by a tool. Removal of the soil from the outer surfaces of the tops 110 and 111 as well as the outer surfaces of the tops 110 and 111 results in the formation of a plurality of pieces 110 and 111 divided into a plurality of pieces for making the glass fiber reinforced plastic molding 160, (120, 121) are all provided.

A glass fiber reinforced plastic molding 160, which is a mold of the present embodiment, is manufactured by using the upper and lower frames 110 and 111 and the lower frames 120 and 121. [ Such a glass fiber reinforced plastic molding 160 is also made into a plurality of pieces so that the reinforcing core 150 can be disposed therein.

In order to manufacture such a glass fiber-reinforced plastic molding 160, a plurality of pieces of the tops 110 and 111 are assembled and disposed while being fixed to the outside of the first and second frames 120 and 121, 111, and the in flames 120, 121 is injected into the molds to produce a plurality of pieces of molding (S7).

Referring to FIG. 4A, the pair of the outer legs 110 and 111 and the inner frames 120 and 121 may be assembled together by welding the opposing reinforcing bars 131. A separating material (not shown) for setting a boundary for disassembly can be disposed between the outer casings 110 and 111 and the super shrouds 120 and 121 so that the molding can be divided into a plurality of pieces.

The plurality of pieces of the upper and lower frames 110 and 111 and the upper and lower frames 120 and 121 are fabricated as a molding mold 140 for the glass fiber reinforced plastic melted by connecting the reinforcing bars 131 disposed on the boundary line by welding . The molten glass fiber reinforced plastic is injected through the injection port connected to the inner space between the upper and lower frames 110 and 111 and the lower frames 120 and 121 and slowly cooled to complete the glass fiber reinforced plastic molding 160. Although the separating member is not shown, the separating member can be disposed between the upper and lower forming molds 140, and thus can be disposed on the center line in the horizontal direction.

Referring to FIG. 4B, the forming mold 140 may be divided into two parts by cutting the welded reinforcing bars, and a pair of glass fiber reinforced plastic molding 160 is manufactured. The glass fiber-reinforced plastic molding 160 can be divided into a plurality of pieces by a separating material (not shown), so that the glass fiber-reinforced plastic molding 160 can be conveyed in a plurality of pieces together with the reinforcing core 150 to a final installation position of the molding.

As shown in FIGS. 5 and 6, in order to install the molding, the reinforcing core 150 is installed on the base 170 first. That is, the lower end of the reinforcing core 150 is completely fixed by bolting or welding on the base 170. In this embodiment, the reinforcing core 150 is positioned before the glass fiber-reinforced plastic molding 160 at the point where the molding is installed, and the plurality of pieces of the molding are assembled and disposed outside the reinforcing core 150 (S8).

The inner space of the reinforcing core 150 and the molding may correspond to the thickness of the above-mentioned frames 120 and 121. [ Accordingly, even if a portion of the glass fiber-reinforced plastic molding 160 is sagged by its own weight over time in a state where the reinforcing core 150 is disposed inside the glass fiber-reinforced plastic molding 160, The deformation of the molding is blocked by a certain degree or more by supporting the reinforcing core 150 inside, and the degree of deformation is insignificant, so that it is difficult to recognize the degree of deformation in the outside.

In this embodiment, a filler 165 is filled between the glass fiber-reinforced plastic molding 160 and the reinforcing core 150. Accordingly, the glass fiber-reinforced plastic molding 160 and the reinforcing core 150 can be bonded to each other by the filler 165 and have an integral structure. As the filler 165, a foam material such as urethane foam can be used. The glass fiber reinforced plastic sculptures 160, each of which is produced in pairs, are joined to surround the reinforcing core 150. As the bonding method, bonding, bonding, or a separate fastening member may be used.

As described above, according to the method of manufacturing a glass fiber-reinforced plastic molding having a reinforcing core according to an embodiment of the present invention, the structure of a molding using a material vulnerable to deflection due to eccentric load, such as a conventional glass fiber reinforced plastic, In case of acting on the sculpture, the shape of the sculpture can be maintained as it is, and cost wastage due to the addition of the reinforcing structure can be reduced in terms of production cost.

Meanwhile, a method for manufacturing a glass fiber-reinforced plastic molding having a reinforcing core according to an embodiment of the present invention can be applied to a molding made of a material such as a glass fiber reinforced plastic that can cause deflection due to a load, In the embodiment, glass fiber-reinforced plastic is used, but the scope of the present invention is not limited thereto, and it is possible to apply the present invention to a molding using a material which can cause deflection by its own weight.

The glass fiber reinforced plastic molding 160 and the reinforcing core 150 may be shaped to apply an eccentric load to a position where the position is fixed. That is, the shape of the glass fiber-reinforced plastic molding 160 may be shaped to be deviated from the center of the lower end toward the upper end with respect to the center of the lower end.

Accordingly, the glass fiber-reinforced plastic molding 160 is not a shape in which a straight line or a load is uniformly supported, so that deflection may easily occur at the upper side depending on the characteristics of the material. However, one embodiment of the present invention can prevent sagging of the molding by disposing a reinforcing core made of a material resistant to sagging inside the molding.

As described above, in the present embodiment, the upper and lower frames 110 and 111 and the lower frames 120 and 121 are made of two pieces that can be separated from each other in half by using a molding sand and a reinforcing bar 131. When the reinforcing bars 131 are exposed The two pieces of the upper and lower frames 120 and 121 can be joined or separated by welding the reinforcing bars 131. [

That is, before disassembling into a plurality of pieces, the outer legs 110 and 111 and the first and second inner frames 120 and 121 are one in a state where the exposed reinforcing rods 131 are connected to each other, and the reinforcing rods 131 are cut by oxygen welding, And when the plural pieces are reassembled to make the molding after removing the soil, the forming frame 140 for the glass fiber reinforced plastic may be formed by welding again the corresponding reinforcing bars 131.

Referring to FIG. 2, lugs 132 may be provided on outer surfaces of the outer and inner frames 110 and 111 and the inner frames 120 and 121 according to the present embodiment. The lugs of the flogs 120 and 121 are not shown, but may be arranged in the same structure as the closets 110 and 111.

The lugs 132 are generally in the shape of a conveying ring using the reinforcing bars 131 and can be formed when the reinforcing bars 131 are disposed together with the foundry sand. At this time, the lug 132 is provided by using a reinforcing bar 131 having strength enough to be carried by a crane.

In addition, according to the present embodiment, a polymer may be used as the prototype 100 of the molding, and soil may be used as the thickness forming material 115. A filler 165 is injected between the inner wall of the glass fiber reinforced plastic molding 160 and the reinforcing core 150. The reinforcing core 150 is made of steel containing iron or stainless steel, It can have a circular or rectangular hollow cross section. This reinforcing core 150 provides sufficient stiffness to support deflection of the glass fiber reinforced plastic molding.

As shown in FIG. 6, according to an embodiment of the present invention, a glass fiber-reinforced plastic molding 160 according to a method of manufacturing a glass fiber-reinforced plastic molding having the above-described reinforcing core, A reinforcing core 150 that is positioned on the base 170 and a reinforcing core 150 that is disposed along the reinforcing core 150 so as to be supported by the reinforcing core 150 while surrounding the reinforcing core 150, The molding 160 may be provided.

Since the reinforcement core 150 is disposed inside the glass fiber-reinforced plastic molding 160, even if deflection occurs due to the characteristics of the material, the deformation is substantially blocked by the reinforcing core 150, do.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it will be understood by those skilled in the art that various changes and modifications may be made therein without departing from the spirit and scope of the invention as defined by the appended claims. Deletion, addition or the like of the present invention may be variously modified and changed within the scope of the present invention.

100: Circle 110, 111:
115: Thick forming material 120, 121: Flogging
130: molding sand 131: reinforcing steel
132: Lug 140: Molding frame
150: Reinforced core 160: Glass fiber reinforced plastic sculpture
170: Base

Claims (8)

A step of making a prototype of a sculpture;
Using the circular shape to manufacture a plurality of pieces of the detachable knot having an inner wall shape such as the circular shape;
Adding a thickness-forming material detachable from an inner wall of the jacket to the inner wall of the outer jacket, and determining a thickness of the molding to be manufactured by the thickness of the thickening material;
And a reinforcing core extending from the one end to the other end of the jacket along the center line of the jacket and spaced apart from the thickness forming material and surrounding the plurality of pieces of the jacket, The method comprising the steps of: preparing a plurality of fragments of a chewing gum by injecting a material for producing a chewing gum;
Separating the outer jacket from the bobbin and removing the thick forming material from the outer jacket;
Positioning the plurality of pieces of the outer jacket while assembling and arranging the outer jacket;
Inserting a glass fiber reinforced plastic melted between the outer surface and the inset to manufacture a molding capable of being divided into a plurality of pieces; And
A step of locating the reinforcing core at a position where the molding is installed and fixing the position of the plurality of pieces of the molding to the outside of the reinforcing core and injecting a filler between the inner wall of the molding and the reinforcing core Reinforced plastic sculpture having a reinforcing core. The method according to claim 1,
Wherein the molding and the reinforcing core have a shape in which an eccentric load is applied to a position where the position is fixed. 3. The method according to claim 1 or 2,
Wherein the reinforcing bars are disposed in such a manner that the reinforcing bars are exposed to the outside and the two pieces of the upper and lower frames are joined to or separated from each other by welding of the reinforcing bars, Of the glass fiber reinforced plastic molding. The method of claim 3,
And a reinforcing core for providing a lug for movement on the outer surface of the outer jacket and the outer jacket. The method of claim 3,
Wherein the polymeric material is used as a prototype of the molding, and the reinforcing core is made of earth as the thickening material. 3. The method according to claim 1 or 2,
Wherein the reinforcing core is made of steel including iron or stainless steel, and the reinforcing core has a reinforcing core having a circular or square hollow cross section. The method according to claim 6,
And a reinforcing core in which a base for fixing the reinforcing core is disposed at a point where the molding is installed. A glass fiber-reinforced plastic sculpture according to any one of claims 1 to 3,
A base fixed to the ground;
A reinforcing core fixed on the base; And
Wherein the reinforcing core is disposed along the reinforcing core so as to be able to be supported by the reinforcing core while surrounding the reinforcing core.

Images