KR101066966B1 - Manufacturing geogrid and a geogrid using the same - Google Patents

Abstract

The present invention, the geogrid 10 having a geogrid body portion 11 and the weft binding portion 12 is discharged from the resin solution coating portion 300 and moved to the inclination tension generating induction portion 500 hot plate 410 In the geogrid manufacturing apparatus having a drying unit 400 for drying by a medium, the hot plate 410 while fixing the weft binding portions 12 formed on both ends of the geogrid 10 to the drying unit 400, respectively. Weft elongation control device (420, 420 ') to further suppress the contraction in the weft direction of the geogrid 10 is characterized in that it is further provided with reinforcement.
According to a preferred embodiment of the present invention, a pair of weft elongation control device is provided with a reinforcing part in the drying unit, and both ends of the geogrid may be moved to the inclination tension generating device while being fitted to the weft elongation control device. Since the shrinkage can be fundamentally prevented from the weft rib of the geogrid due to heat, there is an advantage that the geogrid can be produced with high strength, high tensile strength, high elongation and durability.

Description

Geogrid Manufacturing Apparatus and Geogrid Using The Same {Manufacturing Geogrid And A Geogrid Using The Same}

The present invention relates to a geogrid manufacturing apparatus and a geogrid using the same, and more particularly, a pair of weft elongation at both ends of the geogrid discharged from the resin solution coating portion and moved to the inclination tension generating induction portion through the drying portion When the geogrid is dried by heat through the heat plate of the drying unit while being moved by the bite of the control device, it is possible to manufacture the geogrid with improved strength, high tensile strength, high elongation, and durability by blocking the weft of the geogrid from shrinking at the source. The present invention relates to a geogrid manufacturing apparatus and a geogrid using the same.

As is well known, a variety of reinforcing materials for reinforcing soil when carrying out civil engineering works have been developed.

As a representative civil engineering reinforcement using fiber materials, geosynthetics manufactured by using a polymer synthetic resin solution is widely known, including geotextiles having permeability characteristics, including geotextiles having permeability characteristics. It is developed as a membrane (Geomembrane), geogrid, geonet (Geonet), and geocomposite with characteristics of reinforcement, and was initially used to prevent soil scour and filtration, but recently waterproof It is used for various purposes such as preventing cracks, protecting ground structures, and absorbing shocks.

Among the geosynthetics, geogrids are classified into plastic geogrids which are rigid and manufactured in the form of sheets, and textile geogrids which are produced in the form of soft and woven fabrics, and plastic geogrids are known in sheets made of polyethylene or polypropylene. It is manufactured by passing through holes and stretching from one side or both sides, and textile geogrid is made of woven synthetic fiber in lattice form and coated resin solution (polyvinyl chloride, acrylic, latex, rubber, lead blue, etc.) on the outside (outer side) Coating) is widely known.

The geogrid is largely divided into two types, one of which is generally formed of warp ribs by gathering the inclined ribs of several strands, and by forming a weft rib by gathering the wefts of several strands, using a conventional warp knitting machine (Wrap Knitting Machine) Woven (manufactured) with a mesh, and formed by coating (coating) a resin solution coating layer on the outside of the woven (manufactured) network, and the other is a collection of warp and weft ribs by gathering warp and weft ribs of several strands respectively. It is formed, and weaved (manufactured) into a lattice-shaped net by a conventional warp knitting machine, and when weaving, the warp rib and the weft rib of The cross section is passed in a zigzag and the cross section is integrally woven by a binding yarn, and the resin solution coating layer is coated (coated) on the outside of the woven network. do.

The geogrid is manufactured by using a conventional geogrid manufacturing apparatus, briefly look at the structure of the warp feed unit, weaving unit having a weaving machine, resin solution coating unit, drying unit, warp tension generation induction unit, winding unit continuously It is provided in a batch, and supplies to the weaving part while maintaining the inclination of the inclined supply part at equal intervals, and in the weaving part, weaving (manufacturing) the warp, weft and bonded yarn through a weaving machine through a lattice-shaped net and supplying it to the resin solution coating part, A grid of woven geogrid is passed through a coating tank filled with a resin solution to coat (apply) the resin solution on the outer surface of the geogrid, but the geogrid coated with the resin solution is passed through a pressing roller to maintain a constant thickness. Geogrid coated with resin solution and compressed to a certain thickness is applied by applying tension through the inclination tension induction part. Pull moves passed through drying part so that the heating plate is provided with drying the coating resin solution in the state, it is produced by a set of geo-draw process which was wound up at a take-up parts of the geo-draw the resin solution the coating parameters.

By the way, when the geogrid is dried by the heat of the resin solution applied to the outer surface, the inclination consisting of a plurality of strands is contracted even when dried by the heat of the hot plate because the inclined tension generating portion is moved in the state of continuous tension applied Although the degree is very small, the weft consisting of a plurality of strands had a problem that the contraction occurs rapidly toward the center of the weft yarn, and geogrid with such a shrinked weft is used to reinforce the soil of civil engineering When used, the weft yarn is easily stretched, so that the ground is not firmly supported, and the bearing capacity of the ground is greatly reduced, and the weft is severely broken and the weaving state is dismantled, such that the ground easily falls or collapses.

The present invention has been made in order to solve the above problems, when the geogrid coated with the resin solution is dried through the weft elongation control device installed in the drying unit to block the contraction of the weft at the source, high strength, high tensile strength, high elongation. It is an object of the present invention to provide a geogrid manufacturing apparatus capable of manufacturing a geogrid with greatly improved durability and a geogrid using the same.

The present invention for achieving the above object,

In the geogrid manufacturing apparatus having a geogrid body portion discharged from the resin solution coating portion and moved to the inclination tension generation induction portion and a drying unit for drying the geogrid having a weft binding portion via a hot plate,

The weft elongation control device (420,420) to maintain a constant tension in the weft rib (11b) to prevent the contraction to the weft rib of the geogrid by the hot plate while fixing the weft binding portion formed on both ends of the geogrid to the drying unit, respectively ') Is characterized in that it is further provided with reinforcement.

In the present invention, the weft elongation control device,

A base having a fixing member;

A pair of vertical guides having a rail and guide grooves having opposing surfaces disposed opposite to each other, and having a guide groove opened upward in the longitudinal direction, and a fixing member corresponding to the fixing member, the movable guide being disposed on the base. Mounting plate;

A horizontal guide installed on the base to guide the movement to the mounting plate;

A horizontal control lever coupled to the fixing member to adjust a horizontal movement of the installation plate;

A roller mounting block having a protrusion formed at both ends, the roller mounting block being movable in the guide groove via the protrusion;

A plurality of pressure rollers rotatably installed along the axis along the roller installation block along the longitudinal direction of the rail to fix the weft binding portion of the geogrid;

A cover installed on an upper surface of the vertical guide to prevent separation of the roller installation block;

It is rotatably fastened to the cover is characterized in that it comprises a height adjustment lever for adjusting the height of the roller installation block.

In the present invention, the upper surface of the rail is formed with a groove in the longitudinal direction, the outer surface of the pressure roller is characterized in that the projection corresponding to the groove is formed to interlock with each other.

In the present invention, the drying unit is characterized in that the reflection plate for reflecting the heat emitted from the hot plate is further provided with reinforcement.

Geogrid according to the invention,

Supply the warp of the warp feed part to the weaving part to weave (weave) the weaving part through the weaving machine. When weaving, we supply the binding yarn together with the inclined rib to pass the intersection of the inclined rib and the weft rib repeatedly generated by zigzag to weave the intersection part integrally by the weaving yarn, and to sew both ends of the weft rib. Stitched through to form the geogrid main body and weft binding unit integrally and supply them to the resin solution coating section.The geogrid main body and the weft binding unit pass through the coating tank filled with the resin solution, and the resin on the outer surface of the geogrid main body and the weft binding unit. The solution is coated (coated), but the resin-coated geogrid body and the weft binding unit are passed through the squeegee roller. It is maintained at a constant thickness.The geogrid main body and the weft binding unit coated with the resin solution are pressed through the inclination tension generating inducing part through the inclination tension generating induction part to pass through the drying part provided with the hot plate. In the geogrid in which the coated resin solution is dried to form a resin solution coating layer on the outer surface of the geogrid main body and the weft binding unit, and the geogrid main body and the weft binding unit in which the resin solution coating layer is formed are wound through the winding unit.

When the weft binding unit is passed through the drying unit, it is fixed by the weft elongation control device to be moved in a state in which a constant tension is applied is characterized in that it is moved to the inclination tension generating induction unit.

According to a preferred embodiment of the present invention, a pair of weft elongation control device is provided with a reinforcing part in the drying unit, and both ends of the geogrid may be moved to the inclination tension generating device while being fitted to the weft elongation control device. Since the shrinkage can be fundamentally prevented from the weft rib of the geogrid due to heat, there is an advantage that the geogrid can be produced with high strength, high tensile strength, high elongation and durability.

In addition, according to an embodiment of the present invention, through the operation of the horizontal adjustment lever and the height adjustment lever can be selectively adjusted according to the width and thickness of the geogrid to the gap between the weft elongation control device yarn and the gap between the rail and the pressure roller. Therefore, there is an advantage that can be used regardless of the width and thickness of the geogrid.

In addition, according to an embodiment of the present invention, by forming a groove along the longitudinal direction on the upper surface of the rail, by forming a projection corresponding to the groove integrally on the outer surface of the pressure roller to be configured to interlock with each other, weft binding of geogrid Since the parts are fixed by engaging the grooves and the projections, there is an advantage in that the geogrid pressurized between the rail and the pressure roller can be prevented from being detached due to heat shrinkage.

In addition, according to an embodiment of the present invention, by further providing a reflecting plate in the drying unit, it is possible to reflect the heat emitted from the hot plate to dry the resin solution applied to the bottom of the geogrid to install a hot plate additionally Not only can there be no equipment saving, there is an advantage that the resin solution applied to the top and bottom of the geogrid can be dried quickly and completely.

1 is a process diagram of a geogrid manufacturing apparatus according to the present invention.
Figure 2 is a yaw perspective view showing the enlarged extract of the main portion of the geogrid woven through the geogrid manufacturing apparatus and the main portion of the geogrid manufacturing apparatus according to the present invention.
3 is a front view of FIG. 2;
Figure 4 is a perspective view taken separately from the weft elongation control device in the drying unit of the geogrid manufacturing apparatus according to the present invention.
5 is an exploded perspective view of FIG. 4;
Figure 6 is a reference diagram for explaining the operation of the weft elongation control device in the drying unit of the geogrid manufacturing apparatus according to the present invention.

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

In describing the present invention, when it is determined that a detailed description of a related known function or configuration may unnecessarily obscure the gist of the present invention, the detailed description thereof will be omitted.

Referring to Figure 1, the geogrid manufacturing apparatus according to the present invention, the inclined supply unit 100, weaving unit 200, resin solution coating unit 300, drying unit 400, inclination tension generating induction unit 500, winding It consists of the mounting 600, and manufactures the geogrid 10.

The inclined supply unit 100 is configured to install a plurality of inclined bobbins 111 wound around the inclined 11a-1 to the bobbin loading frame 110, and is inclined through the induction roller 120. 11a-1) to continuously supply to the weaving unit 200, since the inclined supply unit 100 is already well known in the art, more specific structure and operation principle will be omitted.

The weaving unit 200 is a loom 210, coupling yarn bobbin 220, inclined guide 230, coupling guide 240, guide roller 250, discharge support roller 260, the first discharge guide roller 270, a second discharge induction roller 280, and a first induction roller 290.

In the present embodiment, the inclined 11a-1 drawn out from the inclined bobbin 111 is supplied to the loom 210 through the inclined guide 230 through the induction guide roller 120, the coupling yarn bobbin 220 The binder yarn 11c withdrawn from the tube is supplied to the loom 210 via the coupling guide 240 through the guide roller 250.

The loom 210 weaves a grid-shaped net through the supplied warp 11a-1 and the weft yarn 11b-1 supplied through a separate weft supply means (not shown), wherein the warp 11a Along the longitudinal direction of -1), the binder yarn 11c is woven in the form of an 'S' to form the geogrid body 11.

And, both ends of the weft yarn (11b-1) is sewn by a separate stitching device (not shown) to prevent the original weft of the weft yarn (11b-1) consisting of a plurality of strands unraveling ( 12) is formed.

Geogrid 10 consisting of the geogrid body 11 and the weft binding unit 12 through the above process is passed through the discharge support roller 260 via the first discharge guide roller 270 through the second discharge guide roller ( 280 and the first induction roller 290 are supplied to the resin solution coating unit 300.

In the case of the weaving unit 200, since it is already well known in the art, more specific structure and operation principle will be omitted.

The resin solution coating part 300 is a coating bath 310, a resin solution 320, a second induction roller 330, a coating induction roller 340, a first discharge induction roller 350, squeegee roller unit It is composed of a 360, the resin solution 320 is applied to the outer surface of the grid-shaped geogrid 10 supplied from the weaving unit 200, and pressed to maintain a constant thickness to discharge to the drying unit 400 do.

In the present embodiment, the second induction roller 330 and the first discharge induction roller 350 are installed in front and rear of the coating tank 510 in which the resin solution 320 is stored, respectively, and the second induction induction roller. A coating induction roller 350 is installed between the roller 330 and the first discharge induction roller 350, and preferably, is relatively lower than the second induction roller 330 and the first discharge induction roller 350. It is located in a state obtained in the interior of the resin solution 320.

According to this embodiment, the geogrid 10 discharged from the weaving unit 200 is moved along the second induction roller 330 of the resin solution coating unit 300 to pass through the coating guide roller 340 1 discharge guide roller 350 is moved. At this time, the geogrid 10 is coated with a sufficient resin solution 320 on the outer surface by the coating guide roller 340.

For reference, the resin solution 320 stored in the coating bath 510 is a solution obtained by dissolving and emulsifying and dispersing a thermosetting resin obtained by mixing polyvinyl chloride (PVC), an acrylic resin, and the like in an appropriate amount of solvent.

The squeegee roller unit 360 includes a support roller 361 and a compression roller 362.

According to this embodiment, the geogrid 10 coated with the resin solution 320 on the outer surface is guided by the first discharge induction roller 350 to move to the support roller 361 and the compression roller 362. The geogrid 10 passing between the supporting roller 361 and the pressing roller 362 is pressed by the supporting roller 361 and the pressing roller 362 and is maintained through the pressing roller 362 in a state of maintaining a constant thickness. 1 is discharged to the induction roller 440.

Since the resin solution coating unit 300 is also well known in the art, more specific structure and operation principle will be omitted.

The drying unit 400 is provided with a hot plate 410, weft elongation control device (420, 420 '), a reflecting plate 430, a second discharge guide roller 440, discharge guide guide 450, the resin solution is applied It is a device for drying the geogrid 10 via a heat source.

Referring to FIG. 2, the hot plate 410 is installed on the main body of the drying unit 400 to dry and heat-treat the resin solution applied to the outer surface of the geogrid 10.

2 to 6, the weft elongation control device (420, 420 ') is installed on the main body of the drying unit 400, more preferably as installed below the hot plate 410, the geogrid 10 The weft binding portions 12 formed at both ends of the movable fixing function respectively to suppress the contraction in the weft direction of the geogrid 10 by the hot plate 410.

The weft elongation control device (420, 420 ') is a base 421, mounting plate 422, horizontal guide 423, horizontal adjustment lever 424, roller installation block 425, pressure roller 426, cover 427 ), And the height adjustment lever 428.

The base 421 is a known rectangular plate, and a fixing member 421a having a spiral hole in the center of the front side and the rear side in the longitudinal direction is installed on one side of the upper surface through the fastening means.

The mounting plate 422 is composed of a rail 422a, a pair of vertical guides 422b and a fixing member 422c, and is disposed on the base 421 to be movable.

In the present embodiment, the long rail 422a is fixed to one side of the mounting plate 422 by the fastening means on one side of the imaginary line in the longitudinal direction, and the other side is a vertical pair of the front side and the rear side in the longitudinal direction. Guides 422b are respectively placed, and a fixing member 422c corresponding to the fixing member 421a of the base 421 is installed at the corner between the pair of vertical guides 422b through the fastening means. Here, in the case of the pair of vertical guides 422b, guide grooves 422b-1, which are opened upward in the longitudinal direction, are formed on opposite surfaces facing each other, and a hole is formed in the center of the fixing member 422c. Then, a known bearing is inserted into the hole.

For reference, the protrusion 425a of the roller installation block 415 to be described later is inserted into the guide groove 422b-1 to be movable.

The horizontal guide 423 is a 'b' shaped bracket, the mounting plate 422 is fixed to the front and rear in the longitudinal direction of the base 421 via the fastening means moving along the upper surface of the base 421 At the same time to guide the installation plate 422 serves to prevent the lifting up.

In the present embodiment, the horizontal guide 423 is applied, but this is only one embodiment. For example, the upper surface of the base 421 forms a triangular groove opened upward along the width direction, and an installation plate ( Since the mounting plate 422 may be installed to be movable on the upper surface of the base 421 by forming a triangular protrusion corresponding to the groove on the bottom of the 422, it is not preferable to interpret the embodiment limited to the embodiment of the present invention. .

The horizontal adjustment lever 424 is a known bolt having a different diameter, and serves to adjust the horizontal movement of the mounting plate 422.

In the present embodiment, the horizontal adjustment lever 424 is rotatably fastened to the fixing member 421a of the base 421, the distal end is rotatably fitted to the fixing member 422c of the mounting plate 422, More specifically, it is rotatably fitted into a bearing inserted into the central hole of the fixing member 422c.

According to the present embodiment, when the horizontal adjustment lever 424 is rotated clockwise or counterclockwise, the horizontal adjustment lever 424 protrudes or is inserted outwardly based on the fixing member 421a, thereby horizontally The mounting plate 422 rotatably fixed to the distal end of the control lever 424 is moved in the horizontal direction with the horizontal control lever 424. Therefore, there is an advantage that can be selectively appropriately adjusted according to the width of the geogrid 10 through the horizontal adjustment lever 424 as described above.

The roller mounting block 425 is a well-known block, and both ends are formed integrally with protrusions 425a protruding outwards, and a fixing portion 425b vertically penetrated is formed on the upper surface. For reference, a known bearing may be inserted into the fixing part 425b.

In the present embodiment, the roller installation block 425 is disposed between the pair of vertical guides 422b and inserted into the guide grooves 422b-1 through the protrusions 425a to be installed to be movable up and down.

The pressure roller 426 is rotatably installed along the axis parallel to the roller mounting block 425 along the longitudinal direction of the rail 422a to fix the weft binding unit 12 of the geogrid 10.

The cover 427 is a known plate having a predetermined width and thickness. The cover 427 is mounted on the upper surface of the pair of vertical guides 422b to be fixed through the fastening means. Here, the cover 427 has a function of preventing the separation of the roller mounting block 425 installed to be movable between the pair of vertical guides (422b) and a function of a nut which is fastened with the height adjustment lever 428. do. In addition, a fastening portion 427a corresponding to the fixing portion 425b of the roller mounting block 425 is vertically penetrated through the upper surface of the cover 427, and a spiral is formed on the inner circumferential surface of the fastening portion 427a. The height adjustment lever 428 to be described in the rotatably fastened.

The height adjustment lever 428 is a known bolt having a different diameter, and serves to adjust the height of the roller installation block 425.

In the present embodiment, the height adjustment lever 428 is rotatably fastened to the fastening portion 427a of the cover 427, the distal end is rotatably fitted to the fixing portion 425b of the roller mounting block 425 In more detail, it is rotatably fitted to a bearing inserted into the central hole of the fixing part 425b.

According to the present embodiment, when the height adjustment lever 428 is rotated clockwise or counterclockwise, the height adjustment lever 428 is raised or lowered based on the cover 427, and thus the height adjustment lever 428. Roller mounting block 425 is rotatably fixed to the distal end of the) is raised or lowered with the height adjustment lever 428. Then, the distance between the rail 422a and the pressure roller 426 can be adjusted by the raising and lowering of the roller mounting block 425, so as to bite (press) the weft binding portion 12 of the geogrid 10. It can optionally be adjusted appropriately.

In the present embodiment, the horizontal adjustment lever 424 and the height adjustment lever 428 is described and illustrated as a manual operation, but this is only one embodiment, for example, the horizontal adjustment lever 424 and height adjustment The lever 428 may be operated automatically by installing a driving motor controlled by the control unit. Furthermore, a sensor for automatically measuring the stretch state of the weft rib 11b may be installed to automatically adjust the tension accordingly. Since an adjustable device may be applied, it is not preferable to interpret the invention as limited thereto.

On the other hand, the geogrid 10 is inserted between the rail 422a and the pressure roller 426 and fixedly movable so that the resin solution applied to the outer surface is dried by the heat of the hot plate 410. At this time, the inclined rib (11c) consisting of a plurality of inclined (11a-1) strand is moved by the heat of the hot plate 410 because it is moved in a state in which the continuous tension is applied by the inclination tension generating portion 500 to be described later Even if the shrinkage is very weak. And the weft rib 11b which consists of a plurality of weft yarns 11b-1 strands is rapidly pressurized by the rail 422a and the pressure roller 426 to be contracted toward the center direction of the weft yarns, so that the separation Although it can be prevented, but if the force to be contracted is greater than the force pressing the weft binding unit 12 through the rail 422a and the pressure roller 426, eventually weft elongation control device (420,420 ') The problem of losing its function can be exposed.

Therefore, in order to fundamentally solve the above problem, the groove 422a-1 is formed on the upper surface of the rail 422a in the longitudinal direction, and the outer surface of the pressure roller 426 corresponds to the groove 422a-1. Preferably, the protrusions 426a are integrally formed to press-fix the weft binding unit 12 of the geogrid 10 in an interlocked state.

In the present embodiment, the groove 422a-1 is formed in the rail 422a, and the protrusion 426a is formed in the pressure roller 426. However, this is merely an example and is necessary. It can also be formed in reverse.

The grooves 422a-1 and the protrusions 426a may be modified in various known shapes.

On the other hand, the drying unit 400, the reflection plate 430 for reflecting the heat emitted from the hot plate 410 is further provided with reinforcement.

In the present embodiment, the reflector plate 430 is disposed between the pair of weft elongation control devices 420 and 420 ', and reflects the heat emitted from the hot plate 410 to dry the resin solution applied to the bottom surface of the geogrid 10. Will let you. Therefore, it is not necessary to additionally install the hot plate 410 through the above-described operation, which not only can reduce equipment, but also can quickly and completely dry the resin solution applied to the top and bottom surfaces of the geogrid 10. There is an advantage.

Subsequently, the second discharge guide roller 440 and the discharge guide guide 450 are installed at the front and the rear of the drying unit 500, respectively. Here, since the second discharge induction roller 440 rotates slowly compared to the inclination tension generation induction part 500 when the inclination tension generation induction part 500 pulls the geogrid 10, sufficient tension is applied to the geogrid 10. Will be. In addition, the discharge guide guide 450 serves to prevent sagging of the dried geogrid 10 and to be safely delivered to the inclined generation guide unit 500.

The inclined tension generating induction part 500 is a well-known device including a draw induction roller 510, a tension induction roller 520, a discharge induction roller 530 in the main body, in the present embodiment the tension induction roller 520 The induction roller 510 and the discharge induction roller 530 are respectively installed at the lower side of the front and rear on the basis of).

According to the present embodiment, the geogrid 10 dried in the state in which the tension is applied is passed through the tension-inducing roller 520 via the induction roller 510, and the gusset through the discharge-induction roller 530 ( 600).

In the case of the inclination tension generating portion 500 is already well known in the art, more specific structure and operation principle will be omitted.

The winding unit 600 is a known device for winding the dried geogrid 10 passed through the inclination tension generation induction unit 500, winding device 610 and the geogrid 10 for winding the geogrid 10 It is provided with a pair of guide rollers 620 to guide the winding device 610.

In the present embodiment, the geogrid 10 which has passed through the induction roller 530 of the inclination tension generating unit 500 is automatically wound by a winding device 610 that passes through a pair of guide rollers 620.

The winding unit 600 is also a well-known technique that is already widely used in the art, and thus a more specific structure and operation principle thereof will be omitted.

Meanwhile, the geogrid 10 manufactured through the geogrid manufacturing apparatus supplies the inclination 11a-1 of the inclined supply unit 100 to the weaving unit 200 through the loom 210 of the weaving unit 200. Weaving (weaving), but gathering several strands (11a-1) and weft (11b-1), respectively, to form a warp rib (11a) and weft rib (11b) to weave (manufacture) into a grid-like net When weaving, the intersecting portions of the inclined ribs 11a and the weft ribs 11b, which are repeatedly generated by supplying the combined yarns 11c together with the inclined ribs 11a, are zigzag and passed through the combined yarns 11c. By interweaving the cross section integrally, by stitching both ends of the weft rib (11b) through the stitching device to form the geogrid body portion 11 and the weft binding portion 12 integrally supplied to the resin solution coating portion 300 The geogrid body 11 and the weft binding unit 12 are passed through a coating tank 310 in which the resin solution 320 is filled. The resin solution 320 is coated (coated) on the outer surfaces of the geogrid main body 11 and the weft binding unit 12, and the geogrid main body 11 and the weft binding unit 12 coated with the resin solution 320 are coated. It is passed through the squeegee roller part 360 to maintain a constant thickness, the geogrid body portion 11 and the weft binding unit 12 coated with the resin solution 320 and pressed to a predetermined thickness inclination tension generation portion ( Geogrid main body 11 and weft binding part 12 by passing through the drying unit 500 provided with a hot plate 410 in the state to be pulled and moved by a medium through the coating 500 to dry the coated resin solution. In the point that the resin solution coating layer 11d is formed in the outer surface of (), and the geogrid body part 11 and the weft binding part 12 in which the resin solution coating layer 11d was formed are wound up through the winding part 600. Same as before.

However, it should be noted that, when the weft binding unit 12 passes through the drying unit 400 by the weft elongation control device (420, 420 ') is fixed to be movable in a state in which a constant tension is applied to the inclination tension generating portion Is moved to 500.

According to an embodiment of the present invention, a pair of weft elongation control devices 420 and 420 'is provided in the drying unit 400, and both ends of the geogrid 10, that is, weft binding unit 12, are weft elongation control devices ( 420, 420 'to be moved to the inclination tension generating device 500 in a state that is movably fitted, by blocking the contraction to the weft rib (11b) of the geogrid 10 by the heat of the hot plate 410 Of course, it is possible to apply the appropriate tension to the weft ribs 11b, similar to the tension applied to the inclined ribs 11a, there is an advantage that can be produced geogrid 10 with greatly improved high strength, high tensile strength, high elongation, and durability. .

It will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the present invention as defined by the appended claims.

10: Geogrid 11: Geogrid main body 12: Weft Binding
11a: inclined rib 11a-1: inclined 11b: weft rib
11b-1: Weft yarn 11c: Bonded yarn 11d: Resin solution coating layer
100: inclined supply unit 110: inclined bobbin 111: inclined bobbin
120: induction roller 200: weaving unit 210: loom
220: binding yarn bobbin 230: inclined guide 240: bonding guide
250: guide roller 260: discharge support roller 270: first discharge guide roller
280: second discharge induction roller 290: first induction roller 300: resin solution coating
310: coating bath 320: resin solution 330: second drawing guide roller
340: coating guide roller 350: first discharge guide roller 360: squeegee roller portion
361: support roller 362: compression roller 400: drying unit
410: hot plate 420.420 ': weft elongation control device
421: base 422: mounting plate 423: horizontal guide
424: leveling lever 425: roller mounting block 426: pressure roller
427: cover 428: height adjustment lever 430: reflector
440: second discharge guide roller 450: discharge guide guide
500: inclination tension generation guide portion 510: induction roller
520: tension generating induction roller 530: discharge induction roller 600: winding
610: winding device 620: guide roller

Claims (5)

The geogrid 10 having the geogrid body portion 11 and the weft binding portion 12, which is discharged from the resin solution coating portion 300 and moved to the inclination tension generation induction portion 500, is dried by the hot plate 410. In the geogrid manufacturing apparatus having a drying unit 400,
In the drying unit 400, the weft binding portions 12 formed at both ends of the geogrid 10 are fixed to each other so as to be movable so as to prevent shrinkage in the weft ribs 11b of the geogrid 10 by the hot plate 410. Geogrid manufacturing apparatus, characterized in that the weft elongation control device (420,420 ') to further maintain the tension on the weft rib (11b).
The method of claim 1,
The weft elongation control device (420, 420 '),
A base 421 having a fixing member 421a;
The pair of vertical guides 422b and the fixing member 421a having a rail 422a and guide grooves 422b-1 having opposing surfaces disposed to face each other and opened upward in the longitudinal direction. An installation plate 422 having a fixing member 422c and movably disposed on the base 421;
A horizontal guide 423 installed on the base 421 to guide the movement to the installation plate 422;
A horizontal adjustment lever 424 coupled to the fixing members 421a and 422c to adjust horizontal movement of the installation plate 422;
A roller mounting block 425 having a protrusion 425a formed at both ends thereof and movably installed in the guide groove 422b-1 through the protrusion 425a;
A plurality of pressure rollers 426 rotatably installed side by side along the roller installation block 425 along the longitudinal direction of the rail 422a to fix the weft binding unit 12 of the geogrid 10;
A cover 427 installed on an upper surface of the vertical guide 422b to prevent separation of the roller installation block 425;
Geogrid manufacturing apparatus characterized in that it comprises a height adjustment lever 428 rotatably coupled to the cover (427) to adjust the height of the roller installation block (425).
The method of claim 2,
Grooves 422a-1 are formed along the longitudinal direction of the upper surface of the rail 422a, and the outer surface of the pressure roller 426 is formed with protrusions 426a corresponding to the grooves 422a-1 to be engaged with each other. Geogrid manufacturing apparatus characterized in that.
4. The method according to any one of claims 1 to 3,
The drying unit 400, the geogrid manufacturing apparatus, characterized in that the reinforcement is further provided with a reflecting plate (430) for reflecting heat emitted from the hot plate (410).
By supplying the inclination 11a-1 of the inclined supply unit 100 to the weaving unit 200, weaving (weaving) through the loom 210 of the weaving unit 200, and the inclined 11a-1 of several strands Each of the weft yarns 11b-1 is collected to form inclined ribs 11a and weft ribs 11b, which are then woven (manufactured) into a lattice-shaped net. By supplying 11c) the intersection of the warp rib 11a and the weft rib 11b repeatedly generated by zigzag to weave the intersection integrally by a single coupling yarn 11c, weft rib 11b Stitch both ends of the stitching device through the stitching device to form the geogrid body 11 and the weft binding unit 12 integrally and supply them to the resin solution coating unit 300, the geogrid body 11 and weft binding unit 12 ) Is passed through the coating tank 310 filled with the resin solution 320 to the outer surface of the geogrid body 11 and the weft binding unit 12. 0) is coated (coated), and the resin solution 320 is passed through the geogrid body part 11 and the weft binding part 12 through the squeegee roller part 360 to maintain a constant thickness, resin The hot plate 410 in a state in which the solution 320 is coated and pressed to the geogrid main body portion 11 and the weft binding portion 12 by applying a tension through the inclination tension generating guide portion 500 to be moved. The resin solution coated layer 11d is formed on the outer surfaces of the geogrid body part 11 and the weft binding part 12 by passing through the provided drying part 500 so that the coated resin solution is dried, and the resin solution coating layer 11d. In the geogrid formed by winding the geogrid body portion 11 and the weft binding portion 12 is formed through the winding portion 600,
When the weft binding unit 12 passes through the drying unit 400, the weft elongation control unit 420, 420 'is fixed so as to be movable in a state in which a constant tension is applied to the inclined tension generating portion 500 is moved. Features geogrid.

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