KR20120063012A - Method of frp bar and frp bar using the same - Google Patents

Abstract

PURPOSE: A producing method of FRP(fiber reinforced plastic) bar, and the FRP bar are provided to secure the high intensity and the excellent antistatic function of the FRP bar. CONSTITUTION: A producing method of FRP(fiber reinforced plastic) bar comprises the following steps: preparing a ledger formed with a fabric including enhancement glass fibers or carbon fibers and having elasticity by being dipped in an epoxy resin in plate shape; cutting the ledge into the preset size after laminating based on the property of the structure strength; inserting the cut ledger into a mold to obtain an upper molded product in a channel shape with two wings and a lower molded product; separating the upper and lower molded products from the mold; and combining the molded products to obtain the rod shaped of FRP bar(B) with hollow holes.

Description

Method for manufacturing FRP bar and FRP bar according to this method {METHOD OF FRP BAR AND FRP BAR USING THE SAME}

The present invention has a method of manufacturing a fiber reinforced plastic bar (FRP bar) having an antistatic function and mixed stiffness, which can be used in a hand of a rack or a transfer robot for loading or transporting articles in a stacked state. By the FRP bar.

In general, a thin film display panel such as an LCD or an LED is manufactured by a gate electrode forming process, an insulating film and semiconductor film forming process, a pixel electrode forming process, a pixel electrode protective film process, a data electrode forming process, a polarizing plate and a backlight unit attaching process, and the like. . At this time, the substrate (glass) used for the panel is processed while being sequentially transferred to the hand of the robot for transfer or loaded on the conveyor, and sequentially transported according to the above-described process, stored in a stacking rack or waiting for the next process. do.

Here, the hand of the robot described above is made of a rod-shaped structure and loads a substrate on a finger forming a mandrel to transfer to the next process. At this time, one end of the rod-shaped structure is fixed to the hand of the robot to form a finger. In other words, the rod-shaped structure loads the substrate in a fixed state fixed. In addition to the substrate, such a rod-shaped structure can load and transport articles such as silicon wafers or general structures.

In addition, the rack described above is formed as a rectangular frame of the enclosure by a plurality of rod-shaped structures that are connected to each other to form a frame. At this time, the rack is formed in a multi-layer structure by the rod-shaped structure can be stacked a plurality of substrates in multiple stages.

On the other hand, the rod-shaped structure is manufactured in the form of a rod by a metal material such as SUS or AL, which is excellent in rigidity to support the weight of the substrate or the silicon wafer, or in the form of a rod by reinforcing plastic, so that the reinforcing fiber is externally strengthened for strength. It is wound.

However, in recent years, substrates and silicon wafers have been gradually expanded in size to increase weight. However, the above-described mandrel-type rod-type structures used for loading or transporting such articles have difficulty in strengthening strength due to material and structural characteristics. There is virtually no proper response to the weighting of articles. In other words, the rod-shaped structure has to be made longer and stronger in order to cope with the size expansion and weight of the article, but it is not manufactured by the material properties and structural properties.

In particular, when the rod-shaped structure is made of metal, the length and width cannot be extended or expanded due to the strength limit of the metal, and the length and width are further increased due to the smoothness deformation caused by the increase in self-weight caused by the deformation of the length and width. In addition, since the shape freedom is low due to the manufacturing characteristics, it is almost impossible to manufacture in various forms. That is, the metal rod-shaped structure cannot change the structural strength to the required level for the reasons described above.

In addition, the rod-shaped structure is made of reinforced plastics, when the reinforcing fibers are wound, the manufacturing process is very complicated, it is not only productive but also has a limit in shape freedom.

The present invention has been made in order to solve this problem, it is possible to manufacture a rod made of a polymer material mixed with a reinforcing fiber by molding using a woven material made of a reinforcing fiber and a base made of a thermosetting resin has a superior structure than conventional metal rods It is an object of the present invention to provide a method of manufacturing an FRP bar that can be freely selected as well as having a strength, durability, chemical resistance, and antistatic function, and can replace a conventional bar structure.

It is another object of the present invention to provide a method for producing an FRP bar which can be manufactured by casting molding using a pair of molds of a polymer material.

In addition, it is another object of the present invention to provide a method for producing a FRP bar capable of molding the above-described rods and thermosetting resins in solid form as well as accelerating the curing of the thermosetting resin by molding the rods with hot air and pressure.

In addition, it is another object of the present invention to provide a method of manufacturing a FRP bar that can maximize the durability by performing the molding by thermosetting at the optimum temperature, pressure and time described above.

In addition, it is another object of the present invention to provide a method for manufacturing a FRP bar that can form a hollow bar while forming a plurality of channel-like members each formed by molding each other in a bite combination.

In addition, it is another object of the present invention to provide a method for manufacturing a FRP bar that can permanently bond channel-like members formed by using a curable adhesive material that phase-transforms from a liquid phase into the same body.

Furthermore, it is another object to provide a method for producing a FRP bar which can achieve the required adhesion performance even when the above-mentioned adhesive material is cured at room temperature.

In addition, it is another object to provide a method for producing an FRP bar that can produce the bar of good quality by post-processing the aforementioned channel-like members.

Furthermore, it is another object of the present invention to provide a method for manufacturing a FRP bar which can be easily formed by removing the protrusion from the above-described channel-shaped members.

Another object of the present invention is to provide a method for manufacturing an FRP bar having a surface that can be appropriately applied to a laminated or conveyed product by surface-treating the surface of the channel-shaped members.

In addition, it is another object of the present invention to provide a method for manufacturing a FRP bar that can be closed by filling one end of the rod with a filling member, and the other end with a connecting member that can be connected to other members or bars.

Furthermore, it is another object of the present invention to provide a method of manufacturing a FRP bar that can be shielded while closing the connecting member fitted to the bar.

Furthermore, it is another object of the present invention to provide a method for manufacturing a FRP bar that can firmly bind the connecting member inserted into the end of the rod and the filling member described above.

In addition, it is another object of the present invention to provide a method for manufacturing an FRP bar that can reinforce the rigidity of the rod described above with a member separate from the rod.

In particular, it is another object of the present invention to provide a method for manufacturing a FRP bar that can provide a tensile force to the rod to reinforce the rigidity of the rod.

In addition, it is another object to provide a rod-shaped FRP bar made of a polymer produced by the above-described manufacturing method.

The FRP bar manufacturing method of the present invention for achieving the above object is made of a woven fabric having a reinforcing fiber of at least one of carbon fiber and glass fiber, and is planar as it is impregnated with epoxy resin in the form of a planar body and cooled at low temperature. Ledger preparation step of preparing a ledger having flexibility while maintaining the shape; Ledger cutting step of laminating the ledger to suit the characteristics of the structural strength cut to a set size; A molding molding step of inserting the cut ledger into a mold to form a channel-shaped upper molding having wings on both sides and a lower molding corresponding to the upper molding; A molded article extraction step of taking out the upper molded article and the lower molded article from the mold; And a bar manufacturing step of manufacturing the rod-shaped FRP bar having a hollow by combining the upper molded product and the lower molded product.

The molding step may include, for example, a ledger seating step of seating the ledger in a cavity of a fixed mold; A pressing ledger for coupling the moving mold to the fixed mold to press the ledger seated on the fixed mold; And a ledger curing step of curing the epoxy resin of the ledger.

The molding molding step may further include a curing promoting step of providing heat and pressure to the ledger for a predetermined time to promote curing of the epoxy resin.

Here, the heating temperature of the movable mold provided to the ledger is 100 ~ 150 degrees, the heating temperature of the fixed mold is 100 ~ 150 degrees, the pressure of the movable mold is 20 ~ 50kgf / ㎠, Press time is characterized in that 5 to 45 minutes.

The lower molded part is molded differently from the upper molded part by a mold having a width different from that of the mold for forming the upper molded part.

The bar manufacturing step may include, for example, a binder providing step of applying a liquid curable binder to at least one of the upper molding and the lower molding; Joining step of joining the blades to each other by biting the upper molding and the lower molding facing each other; And a curing step of hardening the binder to integrate the upper molding and the lower molding.

In the curing step, the binder is cured at room temperature for 6 to 32 hours to bond the wings.

The present invention may further include a post-processing step of post-processing the upper molded part and the lower molded part taken out from the mold or the FRP bar formed by them.

The post-processing step may include, for example, a burr removing step of removing burrs of the upper molding and the lower molding; or a surface treatment step of treating the surface of the FRP bar by polishing the surface of the FRP bar; At least any one of them may be configured.

The present invention, the finishing step of finishing one end of the FRP bar with a finishing material; A filling step of filling a liquid curable filler into the other end hollow of the FRP bar; And inserting the connector into the other end of the FRP bar filled with the filler to bind the connector to the other end of the FRP bar through the filler, which is cured. Connector fastening step; may further include.

The connector may include, for example, an arm inserted into a hollow of the FRP bar and binding to the filler; And a flange integrally formed at an end of the arm to shield the other end of the FRP bar.

The arm may further include a binding means in the form of a groove that is hardened in the state in which the filler is inserted and is engaged with the filler in a locked state.

The present invention, by installing a reinforcing material on the FRP bar to reinforce the rigidity of the FRP bar; further needs to include a.

The rigid reinforcing step may include, for example, a rod insertion step of inserting a rod reinforcing rigidity of the FRP bar into the FRP bar; An end fixing step of fixing one end of the rod to one end of the FRP bar; The other end fixing step of fixing the other end of the rod with a nut to the other end of the FRP bar; And a tension adjustment step of adjusting the tension of the rod by adjusting the nut.

On the other hand, the FRP bar according to the present invention is manufactured by any one of the methods described above.

FRP bar manufacturing method of the present invention as described above, the FRP bar is manufactured by molding the ledger consisting of carbon fiber and glass fiber woven fabric and epoxy resin to the upper molding and the lower molding to be bonded to each other, high strength than the conventional rod-shaped structure And antistatic function can be secured, chemical resistance is reinforced, can be manufactured at a low price, as well as forming the upper and lower moldings using a mold can be freely manufactured in the desired shape FRP bar, conventional It can improve the inefficient process of reinforcing the structural characteristics by winding the carbon fiber and glass fiber woven fabric on the square bar, and maximize the structural freedom of the limited bar-shaped structure while maximizing the shape freedom. have.

In addition, since the upper and lower moldings are manufactured by using the stationary mold and the moving mold, the upper and lower moldings can be manufactured repeatedly, and the upper and lower moldings can be formed into various shapes by molding with a mold. have.

In addition, heat and pressure are applied to the aforementioned woven fabric and the epoxy resin through the above-described fixed mold and movable mold, so that the upper and lower moldings can be hardened quickly, and the rigidity of the upper and lower moldings can be enhanced.

In addition, the above-mentioned fixed molds and moving molds provide optimal heat and pressure to the aforementioned ledgers for optimal time, which not only hardens the upper and lower moldings more quickly, but also strengthens the rigidity of the upper and lower moldings. Can be maximized.

In addition, the combination of the above-described channel-shaped upper and lower moldings in the interlocking manner to form a hollow FRP bar can further enhance the strength of the FRP bar.

In addition, the above-described channel-shaped upper and lower moldings are bonded with a curable binder, thereby allowing the upper and lower moldings to be permanently bonded and further strengthening the strength of the FRP bar through the integration of the permanently joined upper and lower moldings. In addition, the strength can be maintained evenly throughout.

Furthermore, since the above-mentioned binder is cured at room temperature for 6 to 32 hours, not only the upper and lower moldings can be easily bonded, but also the strength of the bonding portion can be secured to the required strength.

In addition, since the above-mentioned upper and lower moldings are molded and then processed, high quality FRP bars can be produced.

In particular, when the burrs are removed from the above-described upper and lower moldings or the FRP bars made by them, the upper and lower moldings can be easily interlocked because the quality of the moldings can be improved while the burrs are prevented from being caught by the burrs. .

On the other hand, when the surface of the above-mentioned upper and lower moldings or the surface of the FRP bar produced by them is polished or coated, the required surface roughness of the FRP bar can be obtained as well as the surface quality can be greatly improved. .

In addition, since one end and the other end of the above-described FRP bar is finished with a finishing material and a connector, respectively, both ends of the FRP bar can be closed in a sealed state.

In addition, since the arm of the connector having a flange is inserted into the other end of the FRP bar filled with the filler described above, the binding force between the filler and the connector can be reinforced, and the other end of the FRP bar can be shielded through the flange.

In addition, the filler is inserted into the groove-shaped binding means formed on the arm and cured so that the binding force between the arm and the filler can be reinforced and the arm can be firmly fixed to the FRP bar.

In addition, when the reinforcement is installed, the reinforcement reinforces the rigidity of the FRP bar, it is possible to extend or extend the length of the FRP bar, as well as increase the load of the load loaded on the FRP bar.

In addition, as the reinforcement made of rod is adjusted to the tension by the nut in the state of being embedded in the FRP bar, the rigidity of the FRP bar can be adjusted to the desired size, and the reinforcement is built into the FRP bar to prevent exposure of the reinforcement as well as the FRP bar Can utilize the internal space of

On the other hand, since the FRP bar according to the present invention is manufactured by the above-described manufacturing method, mass production is possible with the same standard.

1 is a conceptual diagram schematically showing a manufacturing procedure of the FRP bar according to an embodiment of the present invention.
Figure 2 is an exploded perspective view showing a FRP bar and a connector according to an embodiment of the present invention.
3 is a cross-sectional view showing a state in which the reinforcing material is installed in the FRP bar according to an embodiment of the present invention.
Figure 4 is a perspective view showing a hand of the robot is applied FRP bar according to an embodiment of the present invention.

Hereinafter, the present invention will be described with reference to the accompanying drawings.

Referring to FIG. 1, a method of manufacturing a fiber reinforced plastic bar (FRP bar) according to an embodiment of the present invention includes a preparation of a ledger, a cutting of a ledger, a molding molding step, a molded article taking out step, and a bar manufacturing step.

First, the above-described ledger preparation step is to prepare a ledger 5 in a state as shown in (c) of the drawing. This ledger 5 is made of at least one of the reinforcing fibers of carbon fiber (c) or glass fiber (g) as shown in (a) of the drawing, the reinforcing fiber material woven fabric (2) wound on the roll (1) After drawing from the roll (1) and cutting and processing into a planar weave (2) as shown in (b) of the drawing, and then impregnated the cut planar weave (2) in an epoxy resin not shown Refers to a material that has been cryogenically frozen. That is, the ledger 5 is made of a reinforcing fiber reinforcing material and epoxy resin matrix (Matrix) is a low-temperature frozen plane.

Here, the above-described ledger 5 may be composed of a woven fabric 2 that is woven in a lattice or diagonal shape in a state in which carbon fibers c and glass fibers g are mixed as shown in (a) of the drawing. have. In this case, the staff head 5 is strengthened by the mixed stiffness due to the heterogeneous properties of the carbon fibers c and the glass fibers g. On the other hand, the ledger 5 has a multi-layered state as shown in (c) of the drawing, in which a woven fabric 2 made of carbon fiber c and a woven fabric 2 made of glass fiber g are alternately stacked. It can also be configured. The ledger 5 has a rigidity because the carbon fiber c and the glass fiber g are laminated in an alternating state to exhibit mixed stiffness.

On the other hand, since the ledger 5 is cryogenically frozen in the state impregnated with the epoxy resin as described above, the planar shape of the woven fabric 2 is maintained, and since the hardening of the epoxy resin is prevented by low temperature freezing, it has flexibility.

Next, the above-described ledger cutting step is a step of laminating a plurality of ledgers 5 to suit the characteristics of the required structural strength as shown in (c) of the figure and cut them to a set size. At this time, the ledger 5 is stacked several to several dozen sheets according to the required structural strength of the FRP bar (B) while preventing sagging due to the load of the FRP bar (B) to be described later, and then the FRP bar (B) Cut to size corresponding to width and length. Of course, the strength of the FRP bar B is determined by the number of laminated sheets of the ledger 5.

Next, in the molding molding step described above, the ledger 5 is put into a mold consisting of the stationary mold 8 and the moving mold 9 as shown in FIGS. As shown in FIG. 2, the upper and lower moldings having a channel shape having wings 5a and 5d on both sides are formed. Such molding molding step may include, for example, an upper molding molding step for molding the upper molding and a lower molding molding step for molding the lower molding.

As shown in (d) to (f) of the figure, the upper molding step is performed by applying pressure while applying heat to the ledger 5 using the stationary mold 8 and the movable mold 9 (h). Molding the top molding 5 'as shown in FIG.

To explain this in more detail, the forming step of the upper molding is put into the cavity of the stationary mold (8), the cutting ledger (5) cut as described above, as shown in (d) of the drawing, and then moved to the mold ( 9) is prepared to be elevated on top of the stationary mold (8). Then, as shown in (e) of the drawing, the movable mold 9 is engaged with the stationary mold 8, and the upper mold 5 is pressed by pressing the ledger 5 until the epoxy resin of the ledger 5 is cured. Mold '). At this time, it is preferable to provide the heat and pressure set for the set time through the moving mold 9 and the fixed mold 8 to the ledger 5 to promote the curing of the epoxy resin of the ledger 5. The heating temperature of the movable mold 9 is 100 to 150 degrees, the heating temperature of the fixed mold 8 is 100 to 150 degrees, and the pressure applied by the movable mold 9 is 20 to 50 kgf / cm 2, and the movable mold is It is preferable that the press time of (9) is 5-45 minutes. In particular, the heating temperature of the movable mold 9 is 150 degrees, the heating temperature of the stationary mold 8 is 140 degrees, the pressure applied by the movable mold 9 is 80 kgf / cm 2, and the press time of the movable mold 9 is Is most preferably 15 to 25 minutes. Therefore, the ledger 5 is molded into the upper molding 5 'while being thermally cured in a short time to the size set by the above-described time, heat and pressure. That is, the ledger 5 is molded into a channel-shaped structure having durability.

Here, the above-described heat and pressure provided for a set time promotes the curing of the epoxy resin of the ledger 5. Of course, this heat, pressure and time can be increased or decreased depending on the stacked number of ledgers 5.

The bottom molding step is performed in the same manner as the above-mentioned top molding step. That is, the bottom molding step is to mold the bottom molding 5 "shown in (h) of the drawing by the same method as the top molding step. However, the bottom molding step is as shown in (i) of the drawing. As such, the cavity width of the stationary mold 8 is formed to be smaller than the width of the cavity formed in the stationary mold 8 of the above-described upper molding step so that the lower molding 5 "is interlocked with the upper molding 5 '. . Accordingly, the under molding molding step forms the under molding 5 'which has a width slightly smaller than the width of the upper molding 5'. Of course, the lower molding step forms the lower molding 5 "in a quantity corresponding to the quantity of the upper molding 5 '.

Meanwhile, the molding molding step may be performed through the above-mentioned upper molding step or the lower molding step, respectively, or may be simultaneously performed.

On the other hand, the above-described upper molding (5 ') or lower molding (5 ") has a superior antistatic function than the metal material by the material properties, but can be enhanced by the antistatic function strengthening step performed before molding have. This antistatic function strengthening step may be composed of a step of adding a surfactant of the polymer resin based on the surface of the ledger (5) prepared by the preparation of the ledger or applying a surfactant to the cavity surface of the stationary mold (8). Thus, when a surfactant is added to the ledger 5 or the stationary mold 8, an insoluble hygroscopic coating film is formed on the surface of the molded part 5 'or the lower molded part 5 ". Therefore, the FRP bar B is strengthened antistatic function by the hygroscopic coating.

Alternatively, the step of strengthening the antistatic function may proceed during molding of the upper and lower moldings 5 ', 5 ". This antistatic function reinforcing step may be configured to form the upper and lower moldings (5 ', 5 ") so that the reinforcing fibers of the fabric material 2 is exposed to the outside of the base made of epoxy resin. Thus, when the reinforcing fibers are exposed to the outside of the matrix, the cooling of the upper and lower moldings 5 'and 5 "is caused by the exposed carbon fibers of the atmosphere and the surface of the upper and lower moldings 5' and 5". Hygroscopicity is improved, antistatic function is strengthened. Thus, the FRP bar B can prevent or minimize the generation of static electricity.

Subsequently, the above-described molding ejection step is a step of separating the upper and lower moldings 5 ', 5' from the stationary mold 8 in which the moving mold 9 is separated, as shown in (f).

To explain this in more detail, the upper and lower moldings 5 ', 5 "formed in the stationary mold 8 after raising the movable mold 9 which has completed pressurization of the upper and lower moldings 5', 5". Take out). Here, the stationary mold 8 and the movable mold 9 are preferably coated on the surface before molding to facilitate separation of the upper molding 5 'or the lower molding 5 ".

As shown in (h) of the drawing, the taken out upper and lower moldings 5 'and 5' are bent at both sides by the cavity of the stationary mold 8 so that the wings 5a and 5b are formed. That is, the upper and lower moldings 5 ', 5' are molded in a channel shape. At this time, the lower molding (5 ") is as shown in (h) of the drawing because the width of the fixed mold (8) is formed smaller than the width of the fixed mold (8) for forming the upper molding (5 ') as described above Likewise, it is molded to a width smaller than that of the top molding 5 '.

The upper and lower moldings 5 ', 5' are preferably removed by the burr removal tool after being taken out of the stationary mold 8. Therefore, since the upper molding 5 'has no protruding portion in the state where the burr is removed, the upper molding 5' can be accurately mated with the lower molding 5 "

In addition, the upper and lower moldings (5 ', 5 ") can be polished or coated with a coating material in the form of paint. Thus, the upper and lower moldings 5 ', 5' can secure a glossy or matte surface through surface treatment. That is, the FRP bar B can not only obtain the surface roughness required by the surface treatment, but can also achieve high quality.

Subsequently, in the bar manufacturing step, the upper molding 5 'and the lower molding 5 "are brought into opposing state as shown in (h) of the drawing, as shown in (i) of the drawing. That is, the bar manufacturing step is to complete the FRP bar (B).

In more detail, first, a liquid curable binder such as epoxy resin is applied to the wings 5a and 5b of the upper molding 5 'or the lower molding 5 ", and then the wings 5a and 5b are illustrated. Occlusion and bonding as shown in (h) of this time, since the lower molding (5 ") is smaller than the upper molding (5 '), the wings (5a, 5b) of both sides are easily combined.

Subsequently, the upper molding 5 'and the lower molding 5 "interlocked with each other are left to cure for about 6 to 32 hours at room temperature depending on the amount of the binder. Of course, the curing time can be shortened by adding temperature to the binder. Thus, the upper and lower moldings 5 ', 5 "are integrated by a binder to be cured to form a rod-shaped FRP bar B having a hollow as shown in (i) of the figure.

The FRP bar B is formed by the binder in a state in which the wings 5a and 5b are overlapped after the wings 5b of the lower molding 5 '' are inserted into the wings 5a of the upper molding 5 '. Since it is permanently fixed, the rigidity is strengthened, that is, the FRP bar (B) is composed of wings (5a, 5b) overlapping both sides, so that the rigidity is enhanced along the axial direction.

On the other hand, the FRP bar (B) can be post-processed. Such post-processing may be a process of wiping and removing the binder spilled to the outside of the wings (5a) (5b), otherwise it may be a process of removing the burrs when the burrs are not removed on the wings (5a) (5b), Alternatively, the surface of the upper and lower moldings 5 'and 5 "may be polished.

In this way, the FRP bar (B) is a post-processing can be used by cutting to a length corresponding to the size of the substrate or silicon wafer for thin film display panel.

Referring to Figure 2, the FRP bar (B) is finished with a finish at one end, as shown, the other end is filled with a liquid curable filler such as epoxy resin is bonded to the connector (C).

Here, the above-described finish may be composed of the above-described filler. That is, one end of the FRP bar (B) may be closed by the filler to be cured. In contrast, the above-described finishing material may be composed of a plate of the same material as the FRP bar (B), or a plastic plate, or a metal rod of a short size or a metal plate of a predetermined thickness. That is, the FRP bar (B) may be closed at one end with a hard plate or metal rod.

And the connector C mentioned above can be comprised by the arm C1 which has the flange C2 at the edge part as shown. The arm C1 is inserted into the other end of the FRP bar B filled with the filler and is firmly bound to the other end of the FRP bar B by curing the filler. At this time, the flange (C2) is caught on the other end of the FRP bar (B) while shielding the other end of the FRP bar (B). Therefore, the other end of the FRP bar (B).

The arm C1 may be formed with a groove-shaped binding means C3 that is hardened in the state in which the filler is inserted and is engaged with the filler in the locked state. This binding means (C3) is the filler of the FRP bar (B) is inserted when the arm (C1) is inserted into the FRP bar (B). Therefore, since the filler C3 is inserted into the groove-type binding means C3 and cured, the arm C1 is engaged with the outer circumferential surface of the FRP bar B being caught. That is, the arm C1 is firmly fixed to the inside of the FRP bar B by the binding means C3.

Here, the connector (C) described above is a member that connects the other end of the FRP bar (B) to a device such as a hand of a robot (not shown). That is, the FRP bar (B) is connected to the external device through the connector (C).

As shown in the enlarged view (connector plan view) of the connector C, the sub-arm C5 configured in the same manner as the arm C1 may be provided on one side or both sides of the flange C2. This subarm C5 is a member that is coupled with another FRP bar B not shown. Therefore, the connector C may be coupled to the other FRP bar (B) to the side in the state fitted to the other end of the FRP bar (B).

On the other hand, when the FRP bar (B) is provided with a sub-arm (C5) to the connector (C) as described above may be connected to the front and side of the connector (C) to form a frame of a rectangular shape not shown. Therefore, the FRP bar (B) may be connected to the front or side of the connector (C) to form a rack (rack) in the form of a square frame on which a plate material such as a substrate is stacked. In other words, the FRP bar (B) can be used in the manufacture of the rack.

Referring to FIG. 3, the bar manufacturing step may further include a rigid reinforcing step. Such a rigid reinforcing step is a process of installing the reinforcing material 10 in the FRP bar (B) as shown. Such a reinforcing material 10 may be configured to include a rod-shaped metal rod 11 and the nut (13). At this time, the rod 11 may be composed of a SUS round bar of about 3 to 8 cm diameter having a corrosion resistance and a screw thread at both ends, or a SUS round bar wound with FRP or a metal thread.

In order to install the reinforcing material 10 in the FRP bar B, first, the rod 11 is inserted into the inside of the FRP bar B. Then, one end of the rod 11 is fixed to one end of the FRP bar B, and the other end of the rod 11 is fixed to the other end of the FRP bar B with the nut 13. At this time, one end of the rod 11 can be fixed to one end of the FRP bar (B) through the plate-shaped finish of the FRP bar (B) or a separate nut not shown, the other end of the flange of the connector After passing through C2, the nut 13 may be fastened.

Then, the tension of the rod 11 is adjusted by compressing or tensioning the rod 11 while tightening or loosening the nut 13. At this time, the rod 11 provides the tension to the FRP bar (B) to reinforce the rigidity of the FRP bar (B). Therefore, the FRP bar (B) has a pre-stress (Pre-stres) is reinforced by the compressive force by the tension of the rod 11 to strengthen the bending deformation.

Referring to Figure 4, the FRP bar (B) is coupled to the robot's hand as shown through the connector (C) described above may be loaded and transported articles such as substrates or silicon wafers. In other words, the FRP bar (B) can be used as a finger on the hand of the robot for transporting goods. At this time, the FRP bar (B) can prevent the generation of static electricity by the antistatic function due to the material properties to suppress the defect of the load due to the static electricity, and even if the uniaxial fixation on the hand of the robot to the structural strength characteristics of the reinforced fiber polymer As a result, the load doubled than before can be stably supported without bending deformation.

The FRP bar manufacturing method of the present invention as described above, the upper molding (5 ') and the lower molding (18) to form the carbon fiber (c) and the glass fiber (g) woven material (2) and the ledger (5) made of epoxy resin with each other ( By forming the FRP bar (B) by molding to 5 "), it is possible to secure a higher strength and antistatic function than the conventional rod-shaped structure, reinforced chemical resistance, and can be manufactured at a low price, as well as a mold By forming the upper and lower moldings (5 ', 5 ") using (8, 9), not only can the FRP bar (B) be freely manufactured in a desired shape, but also carbon fiber and glass fiber material in a conventional rectangular bar. It can improve the inefficient process of the structure to reinforce the structural characteristics by winding the woven material, and can maximize the shape freedom while maximizing the structural strength characteristics of the limited bar-shaped structure.

In addition, since the upper and lower moldings 5 'and 5 "are manufactured using the stationary mold 8 and the movable mold 9, the upper and lower moldings 5' and 5" having rigidity can be repeatedly produced. In addition, since the molds 8 and 9 are molded, the shapes of the upper and lower moldings 5 ′ and 5 ″ may be molded into various shapes.

In addition, heat and pressure are applied to the aforementioned woven fabric 2 and the epoxy resin through the above-described fixed mold 8 and the movable mold 9, thereby rapidly curing the upper and lower moldings 5 'and 5 ". Not only can it enhance the rigidity of the upper and lower moldings 5 ', 5 ".

In addition, the above-mentioned fixed mold 8 and the movable mold 9 provide the above-mentioned ledger 5 with the optimum heat and pressure for an optimal time, thereby making the upper and lower moldings 5 ', 5 ". Not only can it harden more quickly, but it can also maximize the rigidity of the upper and lower moldings 5 ', 5 ".

In addition, since the above-described channel-shaped upper and lower moldings 5 'and 5 "are combined in an interlocking manner to form a hollow FRP bar B, the strength of the FRP bar B can be further enhanced.

In addition, the above-mentioned channel-shaped upper and lower moldings 5 'and 5 "are bonded with a curable binder, so that the upper and lower moldings 5' and 5" can be permanently bonded, and the upper and Integrating the undercarriages 5 ', 5 "not only can further strengthen the strength of the FRP bar B, but also maintain the strength as a whole.

Furthermore, since the above-mentioned binder is cured at room temperature for 6 to 32 hours, the upper and lower moldings 5 'and 5 "can be easily bonded as well as the strength of the bonding portion can be ensured to the required strength.

In addition, since the above-described upper and lower moldings 5 'and 5 "are molded and then processed, high quality FRP bars B can be produced.

In particular, when the burrs are removed from the above-mentioned upper and lower moldings 5 'and 5 "or the FRP bars B made by them, the quality of the moldings can be improved while the upper part can be prevented by the burrs. And subforms 5 ', 5 "can be easily mated.

In contrast, the surface roughness and surface quality of the FRP bar (B) can be greatly improved when the surface of the upper and lower moldings (5 ', 5 ") or the FRP bars manufactured by the above are polished or coated. have.

In addition, since one end and the other end of the above-described FRP bar (B) is finished with a finishing material and a connector (C), respectively, both ends of the FRP bar (B) can be closed in a sealed state.

In addition, since the arm C1 of the connector C having the flange C2 is inserted into the other end of the FRP bar B filled with the above-described filler, the binding force between the filler and the connector C can be reinforced as well as the flange. Through (C2) it is possible to shield the other end of the FRP bar (B).

In addition, the filler is inserted into the groove-shaped binding means C3 formed in the arm C1 and cured, thereby not only reinforcing the binding force between the arm and the filler but also firmly fixing the arm C1 to the FRP bar B. You can.

In addition, when the reinforcing material 10 is laid down, since the reinforcing material 10 reinforces the rigidity of the FRP (B) bar, the length of the FRP bar (B) can be extended or extended, as well as being loaded on the FRP bar (B). The load on the load can be increased.

In addition, since the tension is controlled by the nut 13 in a state in which the reinforcement 10 made of the rod 11 is embedded in the FRP bar B, the rigidity of the FRP bar B can be adjusted to a desired size. Since 10) is embedded in the FRP bar (B) can not only prevent the exposure of the reinforcement 10, but also utilize the internal space of the FRP bar (B).

On the other hand, since the FRP bar (B) according to the present invention is manufactured by the above-described manufacturing method, mass production of the same standard is possible.

Since the above-described embodiments are merely illustrative of the preferred embodiments of the present invention, the scope of application of the present invention is not limited to the above, and appropriate modifications are possible within the scope of the same idea. Therefore, since the shape and structure of each component shown in the embodiment of the present invention can be carried out by deformation, it is natural that the modification of the shape and structure belong to the appended claims of the present invention.

1: roll 2: weave
3: protective paper 5: ledger
5 ': Top molding 5 ": Bottom molding
8: fixed mold 9: moving mold
B: FRP Bar

Claims (9)

Preparing a ledger made of a woven fabric having a reinforcing fiber of at least any one of carbon fiber and glass fiber, and preparing a ledger having flexibility while maintaining a planar shape as it is impregnated with an epoxy resin in the form of a planar body at low temperature and freezing;
Ledger cutting step of laminating the ledger to suit the characteristics of the structural strength cut to a set size;
A molding molding step of inserting the cut ledger into a mold to form a channel-shaped upper molding having wings on both sides and a lower molding corresponding to the upper molding;
A molded article extraction step of taking out the upper molded article and the lower molded article from the mold; And
And a bar manufacturing step of manufacturing the rod-shaped FRP bar having a hollow by combining the upper molded product and the lower molded product. The method of claim 1, wherein the molding step is
A ledger seating step of seating the ledger in a cavity of a fixed mold;
A pressing ledger for coupling the moving mold to the fixed mold to press the ledger seated on the fixed mold; And
Method of manufacturing a FRP bar comprising ;; Ledger curing step of curing the epoxy resin of the ledger. The method of claim 2, wherein the molding step is
It further comprises a curing step of promoting the curing of the epoxy resin by providing heat and pressure to the ledger for a set time,
The heating temperature of the movable mold is 100 ~ 150 degrees, the heating temperature of the fixed mold is 100 ~ 150 degrees, the pressure of the movable mold is 20 ~ 50kgf / ㎠, the press time of the movable mold is 5 ~ 45 minutes FRP bar manufacturing method characterized in that. The method of claim 1, wherein the bar manufacturing step,
A binder providing step of applying a liquid curable binder to at least one of the upper and lower moldings;
Joining step of joining the blades to each other by biting the upper molding and the lower molding facing each other; And
And curing the binder to integrate the upper molded part and the lower molded part. The method of claim 1,
A finishing step of finishing one end of the FRP bar with a finishing material;
A filling step of filling a liquid curable filler into the other end hollow of the FRP bar; And
And a connector binding step of binding the connector to the other end of the FRP bar by inserting the connector into the other end of the FRP bar filled with the filler and curing the filler. The method of claim 5, wherein the connector,
An arm inserted into the hollow of the FRP bar and binding to the filler; And
A flange integrally formed at an end of the arm to shield the other end of the FRP bar;
The arm is,
And a groove-type binding means for hardening in the state where the filler is inserted and binding with the filler in a locked state. The method of claim 1,
Stiffening step of reinforcing the rigidity of the FRP bar by installing a reinforcing material on the FRP bar; FRP bar manufacturing method further comprising. The method of claim 7, wherein the stiffening step,
A rod insertion step of inserting a rod reinforcing rigidity of the FRP bar into the FRP bar;
An end fixing step of fixing one end of the rod to one end of the FRP bar;
The other end fixing step of fixing the other end of the rod with a nut to the other end of the FRP bar; And
TRP bar manufacturing method comprising a; tension adjusting step of adjusting the tension of the rod by adjusting the nut. An FRP bar manufactured by the method for producing an FRP bar according to any one of claims 1 to 8.

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