KR100702629B1 - Manufacturing apparatus of the composite concrete rebar - Google Patents

Abstract

In order to prevent durability degradation caused by severe corrosion caused by various environmental factors such as reforestation and seawater environment, the present invention provides GFRP (glass F, R, P) and CFRP (carbon F, R, P). It is a device for manufacturing composite concrete ribs for producing concrete ribs that strengthen the structure by maintaining rigidity without corrosion even under chloride concrete environment by developing reinforcement composed of).

The present invention is a draw molding apparatus capable of continuously drawing a fiber-reinforced composite material, krill (4) for releasing the wound fiber, and resin barrel (6) for embedding the resin in the fiber released from the krill (4) and And a drawing die (8) for drawing the composite rod (20) consisting of fibers and core cores through the resin barrel (6), and a composite rod drawn and penetrated between the drawing die (8) and the heater (14). A reciprocating winder (10) forming a fiber composite annulus (22) by winding a carbon fiber (24) to a predetermined tension in a groove (38) having a small size and having a gentle slope on an outer circumferential surface of the (20), and the fiber composite Compression film winder 12 wound around the entire outer circumferential surface of the composite sealing portion 20 formed with the annulus part 22 with the compression film 41, and the composite film wound by the compression film 40 by the compression film winder 12. Passing through the heater 14 and the heater 14 for heating the heat in the passage of the rod 20 It characterized in that it comprises a puller 15 for pulling the compressed composite rod 20 to one side.

Concrete rebar, krill, resin, drawing die, reciprocating winder, film winder

Description

Manufacturing apparatus of the composite concrete rebar

1 is a block diagram showing the configuration of an apparatus for manufacturing a composite concrete rib according to the present invention.

2 is a view schematically showing an apparatus for producing a composite concrete rib according to the present invention.

3 is a view showing a winding unit according to the present invention;

* Description of the symbols for the main parts of the drawings *

2: Manufacturing apparatus of composite concrete rebar 4: Main krill

6: Resin barrel 8: Inbaldai

10: reciprocating winder 12: compressed film winder

14: Heater 16: Fuller

20: Composite sealing 22: Fiber composite ring

26: base 28: wheel

30: rotating plate 31: first krill

32: roller 34: outlet

36: fiber resin pain 38: groove

40: rotating plate 41: compressed film

42: film winding wheel 43: tension control system
44: the second krill

The present invention relates to a manufacturing apparatus of composite concrete rebar, and more specifically, in order to reinforce the durability of reinforcing steel in concrete, which is caused by severe corrosion caused by various environmental factors such as reinforcement and seawater environment. GFRP core or plastic core formed by mechanical processing or press working on the outer circumferential surface of the grooves formed by CFRP on the outer circumference to form a fiber composite ring edge wound around the carbon fiber in the circumferential direction and then wound with a compressed film The present invention relates to a composite concrete rebar manufacturing apparatus for maintaining the durability of a structure by maintaining the stiffness without being corroded even under a chlorinated concrete environment by manufacturing a concrete rebar manufactured by compression to increase rigidity and strength.

In general, it is well known that steel reinforcement in concrete is subject to severe corrosion by various environmental factors.

In addition, there is a serious problem of rebar corrosion caused by the impact of re-installation materials and seawater environment. In the case of existing reinforcement reinforcement, even if the epoxy coating, it is a problem that serious corrosion is not avoided under the chlorinated concrete environment.

Conventional rebar reinforcement techniques proposed to solve the above problems are the cores in the manufacture of Kevlar-glass fiber and Kevlar-carbon fiber reinforced composite reinforcement for concrete structures using the blade trusion method. The part uses glass fiber or carbon fiber, and the sleeve uses Kevlar.

Existing FRP reinforcing bar is manufactured by winding the fiber at a proper angle in the circumferential direction to the GFRP or CFRP rod pulled out by full-tension.

The GFRP or CFRP rod is wound around the fiber in a spiral shape in the circumferential direction, but there is a problem in that it is easily pulled out or broken from the FRP rod.

In addition, when the FRP rod is hardened in the circumferential direction before hardening, the fiber wound at a certain angle causes a problem that the fiber volume ratio is not uniformly formed in the longitudinal direction of the rod.

In addition, the conventional rebar is manufactured by forming grooves on the outer circumferential surface of the outer peripheral surface in order to increase the adhesion performance with cement, there is a problem that the increase in the number of processes and productivity is reduced according to the formation of the grooves.

The groove of the rib is formed by pressing, and this groove only causes a change in the fraction of the fiber volume in the vicinity, which is far from the reinforcing effect of the fiber, and has a problem in that adhesiveness and limit appear.

In addition, the machining of the grooves of the reversa causes a problem that primarily causes breakage of the fiber and secondly, loss of strength.

On the other hand, various knot molding (weaving) formed by winding the rod at an angle has been a problem that does not effectively transmit the cement and shear stress to inhibit the durability of the structure.

The present invention has been proposed in order to solve the problems of the various prior art, the object of the present invention is the durability of the reinforcing steel in concrete that is caused by severe corrosion caused by various environmental factors such as reinforcement and seawater environment in concrete For reinforcement, a fiber composite annulus is formed around the grooves formed in CFRP by forming the outer shell with CFRP on the outer circumferential surface of the GFRP core or plastic core formed by mechanical processing or press working. After manufacturing by heating and compressing with a compressed film, the concrete ribs with increased rigidity and strength are manufactured and applied to the structure. Therefore, the composite concrete ribs can be manufactured to maintain the durability by maintaining the rigidity without being corroded even under chlorinated concrete environment. To provide a device.

In order to achieve the above object, the present invention is a drawing molding apparatus capable of continuously drawing a fiber-reinforced composite material, krill for releasing the wound fiber, a resin barrel for embedding the resin in the fiber released from the krill, and this resin barrel A pulley for drawing a composite rod consisting of fibers and a core core, and a carbon fiber wound at a constant tension in a groove having a small size and a slant on the outer circumferential surface of the composite rod drawn and drawn between the draw die and the heater. A reciprocating winder to form a composite annulus, a compressed film winder which winds the entire outer circumferential surface of the composite rod formed with the fiber composite annulus into a compressed film, and heat at the time of passing the composite encapsulated portion of the composite film wound by the compressed film winder Heater for heating and the composite rod portion compressed through the heater to one side It is characterized by including a puller pulled.

It characterized in that it comprises a compression film wound on the outer circumferential surface of the composite rod constituting the concrete rib to facilitate the hot pressing by high temperature.

The reciprocating winder includes a wheel rotatably installed by a motor, a rotatable plate rotatably installed while maintaining a horizontal posture on one side of the wheel, and a first krill on which the carbon fiber is wound and the tension is adjusted on the rotatable plate; It is characterized in that it is composed of a resin container for supplying through the outlet in the state that the resin is naturally buried by the roller disposed carbon fibers unwound in the first krill.

The crimping film winder is fixed at a predetermined distance from the reciprocating winder, and a film winding wheel rotatably installed by a motor, and a rotating plate rotatably installed while maintaining a horizontal posture on one side of the film winding wheel. And a second krill installed to unwind the compressed film wound on the rotating plate, and a tension control system installed to pass the outlet through adjusting the tension of the compressed film passed through the second krill.

Hereinafter, with reference to the accompanying drawings a preferred embodiment of the present invention will be described in more detail.

1 is a block diagram showing the configuration of the apparatus for producing a composite concrete rib according to the present invention, Figure 2 is a view schematically showing the apparatus for manufacturing a composite concrete rib according to the present invention, and Figure 3 is in accordance with the present invention. It is a figure which shows a winding part.

1 to 3, the manufacturing apparatus 2 of the composite concrete rebar according to the present invention is the main krill (4), resin barrel (6), drawing die (8), reciprocating winder (10), crimping It consists of the film winder 12, the heater 14, and the puller 15. As shown in FIG.

The main creel (4) is installed to release the wound while maintaining a constant tension, the resin barrel (6) is the resin is stored in the composite seal portion 20 is a fiber loosened from the main krill (4) It is.

The drawing die 8 simultaneously draws a fiber core formed of a plastic core having a groove 38 formed therein and a fiber passing through a resin barrel 6 wound around an outer circumferential surface of the core core to form a carbon with a predetermined thickness on the outer circumferential surface of the core. While forming the fiber layer is a die for manufacturing the composite rod 20 is drawn so that the groove 38 is exposed as it is.

As described above, when the composite rod 20 is manufactured, the reciprocating winder 10 passes through the puller 15.

The reciprocating winder 10 has a carbon fiber 24 in which resin is deposited on a recess 38 having a small size and a slant on the outer circumferential surface of the composite rod 20 drawn from the drawing die 8. It is a mechanism for forming the fiber composite annulus part 22 by winding with a constant tension.

The reciprocating winder 10 is installed by a conventional technique to reciprocate a predetermined distance set by a control signal on the base 26, and is rotated by a motor (not shown), the center of the composite rod 20 The wheel 28 through which the central hole 46 penetrates is provided.

And the wheel 28 is provided with a rotating plate 30 rotatably while maintaining a horizontal posture on one side, the rotating plate 30 is a first krill 31 wound with carbon fibers 24, and The fiber 32 is provided with a roller 32 so that the resin naturally adheres to the carbon fiber 24 unwound from one creel 31, and at the same time, a fiber resin container 36 is formed with a drawer 34 through which the fiber 24 is drawn out. .

The reciprocating winder (10) is the carbon fiber (24) released from the first krill (31) is pulled out through the outlet (34) in a state where the resin is buried through the fiber resin barrel (36) of the composite seal portion (20) It is wound around the groove 38 to form a fiber composite ring frame 22.

The reciprocating winder 10 is installed to reciprocate on the base 26 by a predetermined control signal. For this reason, by controlling the speed of the reciprocating movement in various ways, the winding shape of the fiber composite annulus 22 may be changed in various ways.

In addition, the compressed film winder 12 is fixedly installed at a predetermined distance from the reciprocating winder 10, and the composite sealing portion (not to loosen the carbon fiber 24 wound on the fiber composite ring frame 22) 20 is a winder to wind the compressed film 41 when passing.

The compressed film winder 12 is fixedly installed on the base 26 to be rotatable by a motor (not shown) operated by a control signal, and installs a film winding wheel 42 to rotate therein. have.

The film winding wheel 42 is provided with a rotating plate 40 which rotates around the composite rod part 20 while maintaining a horizontal posture even though the film winding wheel 42 rotates on one side, and the rotating plate 30 has a crimping film 41. The 2nd krill 44 is provided so that this may be loosened.

In addition, the compression film 41 is wound on the composite rod 20 through a tension control system 43 installed on the rotating plate 30 to adjust the tension.

The tension control system 43 is installed in a conventional technique, and the crimping film 41 released from the second krill 44 can be unwound in a relaxed state and can be wound in a tension state so that the composite rod 20 can be accurately wound. have.

The compressed film 41 is strongly contracted by the heat of the heater 14, and thus is compressed while compressing the entire composite sealing portion 20.

In addition, the compressed film 41, which pressed the composite sealing portion 20, is removed from the composite sealing portion 20, and the compressed film 41 is treated with Teflon to facilitate removal.

The heat radiated from the heater 14 shrinks the compressed film 41 wound around the composite sealing portion 20 by the compressed film winder 12 at a high temperature. When the compressed film 41 shrinks, it is possible to manufacture the composite sealing portion 20 having increased durability.

That is, the composite sealing portion 20 is the shrinkage of the compressed film 41 wound on the outer peripheral surface of the composite sealing portion 20 by the high temperature radiated by the heater 14, the surplus resin flows to the outside to eliminate the conventional defects, etc. Stiffness and strength can be improved.

The puller 15 is installed to pull the composite rod 20 in which the compressed film 41 is compressed by the heat of the heater 14, and the puller 15 may control the pulling by the control signal.

Referring to the operation of the present invention configured as described above, the manufacturing apparatus 2 of the concrete rib is the plastic after the fiber 7, which is the carbon fiber released from the main krill (4) buried the resin in the resin barrel (6) It is drawn from the core core and the double drawing die 8 to form the composite rod 20.

The composite rod 20 is the groove located in the wheel 28 of the reciprocating winder 10 through the center hole 46 in a state in which the groove 38 is formed on the outer circumferential surface after being drawn by the drawing die (8) One side of the rotary plate 30 is inserted in the first krill (31) and the carbon resin 24 wound on the resin stored in the fiber resin barrel 36 is wound to form a fiber composite annulus part 22. .

That is, the fiber composite ring frame 22 is wound around the composite rod 20, thereby increasing rigidity and strength.

As described above, the fiber composite annulus 22 is formed by the carbon fiber 24 wound around the composite rod 20 by the reciprocating winder 10. The winding may vary the winding form of the fiber composite ring part 24 and the like.

And when the composite rod 20 wound around the carbon fiber 24 is moved by the puller 15 to the center hole 46 of the compressed film winder 12, the rotary plate 40 installed on one side of the film winding wheel 42 In the second creel 44 of the), the compression film 41 is wound around the entire outer peripheral surface of the composite rod portion 20 while the tension is adjusted by the tension adjusting system 43.

The composite material seal 20 is moved to the heater 14 by the operation of the puller 15 in the state that the whole is wound with the crimping film 41, the crimped by a high temperature heat source radiated from the heater 14 The film 41 is shrunk.

As a result of the shrinkage of the crimping film 41, the surplus resin flows out of the resin composite fiber composite part 22 or the composite sealing part 20, and is pressed over the entire composite sealing part 20 to complete the manufacture of the concrete rib. .

That is, the compressed film 41 is contracted by the high temperature heat radiated from the heater 14, thereby compressing and forming a solid concrete rib so that the fiber composite ring frame 22 is firmly secured without fear of loosening. I can make it.

As described above, when the composite sealing portion 20 is squeezed by the pressing film 41 and pulled to the puller 15 to separate and remove the teflon-treated pressing film 41 from the composite sealing portion 20 as a finishing process, the composite concrete rebar is removed. The manufacture of is completed.

The composite rod 20 produced in this way can be used as a reinforcing bar to increase the durability of the structure is made by improving the fastening force and the rigidity and strength of the concrete.

For example, the scope of the present invention is not limited to the above-mentioned matters, and the scope of the present invention includes those to those skilled in the art, such as a simple change in shape, to those skilled in the art.

The present invention is to form a groove having a small size and gentle slope on the outer circumferential surface of the composite rod in a certain shape, and to form a fiber composite ring frame wound with carbon fibers, etc. to maintain the rigidity and strength of the composite rod to improve the function of the reinforcement It has the effect of doing.

Accordingly, the composite rod has an effect of increasing the fastening force with the concrete, thereby securing an effective stiffness ratio of 50% or more.

In addition, the stress concentration is improved due to the bending of the fiber expansion ring, and the effective strength is lowered and the stiffness is increased to secure durability.

Claims (4)

In a drawing molding apparatus capable of continuously drawing a fiber-reinforced composite material, A krill (4) for releasing the wound fiber, a resin barrel (6) for embedding the resin in the fiber released from the krill (4), and a composite seal (20) consisting of fibers and core cores through the resin barrel (6) In the groove 38, which is small in size and has a slanted slope, on the outer circumferential surface of the drawing die 8, which draws) and the composite rod 20 drawn through and drawn between the drawing die 8 and the heater 14. The reciprocating winder 10, which forms the fiber composite annulus 22 by winding the fibers 24 to a predetermined tension, and the entire outer circumferential surface of the composite sealing portion 20 in which the fiber composite annulus 22 is formed, is compressed onto the film 41. A heater 14 for heating heat when the composite film 20 wound around the compressed film winder 12, the compressed film 41 wound by the compressed film winder 12, and the heater 14) characterized in that it comprises a puller 15 for pulling the composite rod portion 20 pressed through one side to one side Laminated material manufacturing equipment for concrete rebar. The method of claim 1, wherein the reciprocating winder (10) is a wheel (28) rotatably installed by a motor, a rotating plate (30) rotatably installed while maintaining a horizontal posture on one side of the wheel 28, In the state where the resin is naturally buried by the first creel 31, in which the fibers are wound on the rotating plate 30, and the roller 32 on which the carbon fibers released from the first krill 31 are disposed, 34. The composite concrete rib manufacturing apparatus, characterized in that consisting of a fiber resin barrel (36) for supplying through. The film winding wheel (42) according to claim 1, wherein the crimping film winder (12) is fixed at a predetermined distance from the reciprocating winder (10) and is rotatably installed by a motor. The rotating plate 30 rotatably installed while maintaining a horizontal posture on one side of the wheel 42, the second krill 44 provided with the pressing film 41 wound on the rotating plate 30 to be released, and the second Composite concrete rebar manufacturing apparatus, characterized in that it comprises a tension control system (43) for passing through the outlet (34) by adjusting the tension of the compression film 41 is released from the krill (44). The apparatus of claim 1, wherein the reciprocating winder 10 changes the winding form of the fiber composite annulus 22 while controlling the speed of the reciprocating movement by a control signal. .

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