KR101112087B1 - Manufacturing geogrid improving good elongation shaping and strength of junctions and a geogrid using the same - Google Patents

Abstract

PURPOSE: An apparatus for manufacturing geogrid with excellent elongation is provided to firmly correct minute twisting of warp rib and weft rib. CONSTITUTION: An apparatus for manufacturing geogrid with excellent elongation comprises a weaving unit(200) and drying unit(400). The weaving unit comprises a warp guide device and a stitching yarn guide device. The warp guide device weaves warp rib and weft rib. The stitching yarn guide device comprises first and second stitching guide blocks. The drying unit dries the geogrid by a hot plate(410).

Description

Geogrid Manufacturing Apparatus with Excellent Elongation, Improved Deformation and Contact Strength, and Geogrid Using The Same {Manufacturing Geogrid Improving Good Elongation Shaping And Strength Of Junctions And A Geogrid Using The Same}

The present invention relates to a geogrid manufacturing apparatus and a geogrid using the same, and more particularly, by forming a pair of intersections of the inclined rib and the weft rib through a pair of combined yarn guide device provided on the weaving machine loom By passing the binding yarn in a zigzag in the opposite direction to fix the twisted yarn, it is possible to secure the fine twist of the mutually woven (weaved) warp rib and the weft rib, so that the elongation can be manufactured with a geogrid having a higher elongation than the conventional one. The present invention is to provide a geogrid manufacturing apparatus with excellent deformation and improved contact strength and 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, is produced by a set of geo-draw process which was wound up at a take-up parts of the resin solution is coated geogrid parameters.

By the way, the warp ribs, weft ribs and weaving yarns are woven (manufactured) to each other to form a lattice-shaped mesh structure through a loom of the weaving part. Because weave does not hold the intersection of the inclined rib and the weft rib accurately, a minute distortion occurs at the intersection of the inclined rib and the weft rib, and thus the resin solution in the state of such a slight distortion (deformation) occurs. After coating (coating), when using the geogrid dried through the drying unit for the purpose of reinforcing the soil of civil engineering, there was a problem that the contact portion of the geogrid easily broken.

On the other hand, 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 if dried by the heat of the hot plate because the inclined tension generating induction is moved in a 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 weaving (weaving) of the geogrid by a loom, weaving (weaving) by firmly fixing the intersection of the warp rib and the weft rib through a pair of binding yarn. Geogrid manufacturing apparatus with excellent elongation and improved deformation and contact strength, and a geogrid using the new structure that can block elongation (deformation) of warp and weft ribs at the source to greatly improve elongation and contact strength The purpose is to provide.

Another object of the present invention is to provide a geogrid with significantly improved high strength, high tensile strength, high elongation, and durability by blocking the contraction of the weft when the geogrid coated with the resin solution is dried through a weft elongation control device installed in the drying unit. It is to provide a geogrid manufacturing apparatus with excellent elongation and improved deformation and contact strength, and a geogrid using the same.

The present invention for achieving the above object,

Weaving inclined ribs and weft ribs composed of several strands of warp and weft through the warp guide device of the loom, and when weaving, the weaving yarn together with the warp rib through the warp yarn guide device of the loom repeatedly Weaving unit for weaving the intersection of the generated inclined rib and weft rib; In the geogrid manufacturing apparatus having a drying unit for drying the geogrid body portion having a geogrid body portion and the weft binding portion through the hot plate discharged from the weaving portion and moved to the gradient tension generation induction portion via the resin solution coating portion,

The coupling yarn guide device is configured as a pair, it is characterized in that the intersecting portion of the inclined rib and the weft rib passing through the pair of combined yarn in a zigzag direction to weave the intersecting portion.

In the present invention, the binder yarn guide device, the first binder yarn guide block and the second binder yarn guide block, characterized in that located on the upper side and the lower side relative to the weft rib in the horizontal direction, respectively.

In the present invention, the binder yarn guide device, the first binder yarn guide block and the second binder yarn guide block, characterized in that located on the upper side relative to the weft rib in the horizontal direction.

In the present invention, the binder yarn guide device, the first binder yarn guide block and the second binder yarn guide block, characterized in that located on the lower side relative to the horizontal weft ribs.

In the present invention, the weft elongation control device is further provided in the drying unit to suppress the contraction in the weft direction of the geogrid by the hot plate while fixing the weft binding portions formed on both ends of the geogrid movably. do.

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,

Weaving (weaving) through the inclination guide device and the combined yarn guide device that constitutes the loom of the weaving part by supplying the inclination of the inclined supply part to the weaving part, and gathers the inclined ribs and the weft ribs by collecting the inclined ribs and the weft ribs, respectively. Weaving (manufacturing) into a lattice-shaped net, and when weaving is performed, supplying the binding yarn together with the inclined rib and passing the intersection of the repeatedly inclined rib and the weft rib through the zigzag to make the intersection by a single binding yarn. Woven in one piece, and stitches both ends of the weft rib through a stitching device to form the geogrid main body and the weft binding unit integrally, and to supply the geogrid main body and the weft binding unit to the resin solution coating unit integrally with the geogrid main body. The weft binding unit is passed through a coating tank filled with a resin solution to form a resin on the outer surface of the geogrid body and the weft binding unit. The solution is coated (coated), and the resin solution is coated with the geogrid body and the weft binding unit through the squeegee roller unit to maintain a constant thickness, and the resin solution is coated and pressed into the geogrid body unit and weft bond. The resin is coated on the outer surface of the geogrid body part and the weft binding part by passing the part through the inclination tension-generating part by applying tension through the tension part, and then passing it through the drying part with the hot plate to dry the coated resin solution. In the geogrid formed by winding the geogrid body portion and the weft binding portion formed with a resin solution coating layer through a winding portion,

The coupling yarn is zigzag through the intersections of the inclined ribs and the weft ribs in a reverse direction to each other by a pair of coupling yarn guide device, characterized in that to be intertwined and fixed.

In the present invention, the coupling yarn is formed by a pair of coupling yarn guide device in a reverse direction from each other by passing through the intersection of the inclined ribs and weft ribs in a zigzag to interweave and fix the intersection, any one of the pair of coupling yarns Zigzag is formed along the top surface of the inclined rib, the other is characterized in that it is formed in a zigzag along the bottom of the inclined rib.

In the present invention, the coupling yarn is formed by a pair of coupling yarn guide device in the opposite direction to each other passing through the intersection of the inclined ribs and weft ribs in a zigzag, weaving the intersecting portion, a pair of coupling yarns the top surface of the inclined ribs It is characterized in that it is repeated and zigzag formed along the.

In the present invention, the coupling yarn is formed by a pair of coupling yarn guide device in a reverse direction from each other by passing through the intersection of the inclined ribs and weft ribs in a zigzag to interweave the intersecting portion, a pair of the combined yarn is the bottom of the inclined rib It is characterized in that it is repeated and zigzag formed along the.

In the present invention, when the weft binding unit passes through the drying unit, it is fixed by the weft elongation control device to be movable 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, by weaving a pair through the twisted yarn guide device in the opposite direction to each other by interweaving the intersecting portions of the inclined ribs and the weft ribs in a zigzag through the bond yarns, mutual weaving ( It is possible to secure the fine twist of the warp ribs and weft ribs woven) has the advantage of manufacturing a geogrid having a large elongation compared to the prior art.

In addition, according to an embodiment of the present invention, by providing a pair of weft elongation control device in the drying unit reinforcement, so that both ends of the geogrid can be moved to the inclination tension generating device in the state fitted to the weft elongation control device, Since the contraction of the weft rib of the geogrid due to heat can be blocked at the source, there is an advantage that the geogrid can be improved greatly in 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 having excellent elongation and improving deformation and contact strength according to the present invention.
Figure 2 is a view showing a first embodiment of the loom in the weaving portion of the geogrid manufacturing apparatus excellent in elongation and improved deformation and contact strength according to the present invention.
3 is a geogrid drawing woven through the first embodiment.
Figure 4 is a view showing a second embodiment of the loom in the weaving portion of the geogrid manufacturing apparatus excellent in elongation and improved deformation and contact strength according to the present invention.
Figure 5 is a geogrid drawing woven through a second embodiment.
Figure 6 is a yaw perspective view showing the extract of the main portion of the drying unit in the geogrid manufacturing apparatus excellent in elongation and improved deformation and contact strength according to the present invention.
7 is a front view of FIG. 6;
Figure 8 is a perspective view taken separately from the weft elongation control device in the drying section of the geogrid manufacturing apparatus excellent in elongation and improved deformation and contact strength according to the present invention.
9 is an exploded perspective view of FIG. 8;
Figure 10 is a reference diagram for explaining the operation of the weft elongation control device in the drying unit of the geogrid manufacturing apparatus excellent in elongation and improved deformation and contact strength 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 is composed of the mounting 600, to produce a geogrid 10 with excellent elongation and improved deformation and contact strength.

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 inclination guide device 211 of the weaving machine 210 through the inclination guide 230 via the induction roller 120 through the inclination 11a-1 of several strands drawn from the inclined bobbin 111. 2) the two strands of binder yarn 11c drawn out from the binding yarn bobbin 220 via the guide rollers 240 through the guide rollers 240 and the binding yarn guide device 212 of the loom 210. Is supplied.

The weaving machine 210 is a weft yarn composed of several strands of weft (11b-1) supplied through the inclined rib (11a) consisting of the inclined 11a-1 of several strands supplied and a separate weft supply means (not shown). While weaving a lattice net through the ribs 11b, the warp ribs 11a and the weft ribs 11b which are repeatedly generated by supplying the coupling yarn 11c together with the warp ribs 11a when weaving is performed. It is a device that weaves the intersection of.

2 is a view showing a first embodiment of the loom 210 in the weaving unit 200 of the geogrid manufacturing apparatus having excellent elongation and improved deformation and contact strength according to the present invention. .

The loom 210 is a weft rib (11b) consisting of a plurality of strands of the weft (11a-1) consisting of several strands of warp (11a-1) from a weft feeder (not shown) made of a plurality of strands of weft (11b-1). An inclination guide device 211 which weaves repeatedly up and down as a reference; It is the same as that of the conventional combination yarn guide device (212) for weaving the intersection of the inclined rib (11a) and the weft rib (11b) via the coupling yarn (11c).

However, it should be noted here, the coupling yarn guide device 212 forms a pair, the pair of coupling yarns 11c in a reverse direction to each other in a zigzag cross section of the inclined ribs 11a and weft ribs 11b. It should be noted that passing through the binding yarns (11c) to the intersecting portion to be fixed, the description will be described later in detail.

The inclined guide device 211 is composed of a first inclined guide block 211a and a second inclined guide block 211b.

The first inclined guide block 211a and the second inclined guide block 211b have a center opening in the longitudinal direction, and both upper and lower ends of the first inclined guide block 211a and the second inclined guide block 211b are connected to the winding-out device 214 via a wire w. Plate-shaped main body portions 211a-1 and 211b-1, which are installed to be elevated and provided, and holes having a plurality of strands of inclination 11a-1 through which the openings of the main body portions 211a-1 and 211b-1 are provided. It is composed of the inclined guide portion (211a-2, 211b-2) formed at equal intervals along the inner surface longitudinal direction.

The binder yarn guide device 212 is composed of a first binder yarn guide block 212a and a second binder yarn guide block 212b, and are sequentially disposed in front of the inclined guide device 211.

The first twisted yarn guide block 212a and the second twisted yarn guide block 212b include a plate-shaped main body portion 212a-1, 212b-1 having a central opening in the longitudinal direction, and a twisted yarn 11c. Comprising a through-hole, it is composed of a combination yarn guide portion (212a-2, 212b-2) formed at equal intervals along the longitudinal direction of the inner surface of the main body (212a-1, 212b-1).

In the present embodiment, the first combined yarn guide block 212a and the second combined yarn guide block 212b are respectively positioned above and below the weft rib 11b in the horizontal direction.

In addition, the upper and lower ends of the first combined yarn guide block 212a and the second combined yarn guide block 212b are respectively installed on the winding-out device 214 via a wire w to be elevated. On one side, pneumatic cylinders (213, 213 ') are installed to be movable to the left and right. In addition, although not specifically illustrated, the first binder yarn guide block 212a and the second binder yarn guide block 212b are separated so that the lifting and moving to the left and right accurately while maintaining a predetermined interval. It is preferable to install the guider to the outside of the first binder yarn guide block (212a) and the second binder yarn guide block (212b).

The operational relationship of the first embodiment of the loom 210 according to the present invention will be described.

As shown in FIG. 1, the inclined portions 11a-1 of several strands discharged from the inclined supply unit 100 are supplied to the inclined guide 230 of the weaving unit 200 via the induction roller 120 and inclined. (11a-1) is concentrated in plural pieces while passing through the inclined guide 230 to form the inclined ribs (11a), while maintaining a predetermined width, that is, the same width as the geogrid 10 to be woven in the future The inclined ribs 11a are supplied to the first inclined guide block 211a and the second inclined guide block 211b constituting the inclined guide device 210 of the loom 210.

Then, when the inclined rib 11a is supplied to the coupling yarn (11c) wound on the coupling yarn bobbin 220 to the coupling guide 240 through the guide roller 250, the coupling guide 240 The two strands of the combined yarn 11c passing through) are supplied to the first combined yarn guide block 212a and the second combined yarn guide block 212b, respectively, which constitute the combined yarn guide device 212.

Weft rib (11b) consisting of a plurality of strands of weft (11b-1) for supplying a weft feeder (not shown) to the loom 210 is supplied with the inclined rib (11a) and the coupling yarn (11c). Weaving is performed while supplying. The weaving process is described in more detail as follows.

First, the winding and unwinding device 214 is operated to lower the first inclined guide block 211a downward through the wire w, and the second inclined guide block 211b is lifted upward in the state of weft. After supplying the weft rib (11b) consisting of several strands of weft (11b-1) through a supply device (not shown) between a pair of inclined ribs (11a) in the form of '<' and then cut at a predetermined length, After cutting the weft rib 11b, the winding and unloading device 214 is operated again to lift and lower the first inclined guide block 211a, which has been lowered via the wire w, and then the second inclined ramp. The guide block 211b is lowered to weave (weave) a pair of inclined ribs 11a to cover the top and bottom surfaces of the weft ribs 11b.

Meanwhile, when the inclined rib 11a is supplied through the first inclined guide block 211a and the second inclined guide block 211b, the first combined yarn guide block 212a and the second combined yarn guide block 212b are provided. Combination yarn (11c) is supplied through, which will be described in more detail as follows.

When the warp ribs 11a and the weft ribs 11b are woven (weaved), the winding / unwinding device 214 is operated to lower the first coupling yarn guide block 212a through the wire w. As the second twisted yarn guide block 212b is lifted, the twisted yarn 11c fitted to the first twisted yarn guide block 212a is connected to the upper surface of the weft rib 11b, and the second twisted yarn guide block 212b The binding yarn 11c fitted in 212b is connected to the bottom of the weft rib 11b.

Then, when the woven (weave) warp rib 11a and the weft rib 11b are moved forward by the rollers, the first coupling yarn guide block 212a moves from left to right via the pneumatic cylinders 213 and 213 '. The second binder yarn guide block 212b is moved from right to left so that the binder yarns 11c cross (cross) with respect to the inclined ribs 11a when viewed in a plan view.

Then, the winding and unloading device 214 is operated again to lift and lower the first binder yarn guide block 212a, which has been lowered via the wire w, and the second binder yarn guide block 212b, which has been lifted, is lowered. In the state, the first inclined guide block 211a is lowered and the second inclined guide block 211b is moved up and down by operating the winding / unloading device 214 again as in the previous step. After supplying the weft rib 11b which consists of several strands of weft 11b-1 through the weft supply apparatus (not shown) in the state, it cuts in predetermined length, and the inclined rib 11a and the weft rib 11b are cut When weaving (weaving), the first combined yarn guide block 212a, which has been moved from left to right via pneumatic cylinders 213 and 213 ', moves from right to left, and the second binder guide guide block moved from right to left. 212b moves from the left to the right so that the first combined yarn guide block 212a and the second combined yarn guide block 212b Combination yarn (11c) is zigzag through the intersection of the inclined rib (11a) and weft rib (11b) in the opposite direction to each other to weave and fix the intersection by the coupling yarn (11c), a series of repetition process as described above When passed through, the geogrid woven as shown in Figure 3 is completed.

Particularly, in the case of the pair of coupling yarns 11c, any one of the pair of coupling yarns 11c is zigzag along the top surface of the inclined ribs 11a, and the other is the bottom surface of the inclined ribs 11a. It is formed zigzag along.

On the other hand, Figure 4 is a view showing a second embodiment of the loom 210 in the weaving portion of the geogrid manufacturing apparatus excellent in elongation and improved deformation and contact strength according to the present invention, it will be described with reference to this.

In the present embodiment, the configuration of the first embodiment described above is the same as the whole, except that the first combined yarn guide block 212a and the second combined yarn guide block 212b constituting the combined yarn guide device 212. Only the location is different.

Since the configuration of the combined yarn guide device 212 has already been described above, a detailed description thereof will be omitted.

The operation relationship of the second embodiment of the loom 210 according to the present invention will be described.

As shown in FIG. 1, the inclined portions 11a-1 of several strands discharged from the inclined supply unit 100 are supplied to the inclined guide 230 of the weaving unit 200 via the induction roller 120 and inclined. While passing through the inclined guide 230 (11a-1) is concentrated by a plurality of pieces to form the inclined ribs (11a), and maintains a predetermined width, that is, the loom (with the same width as the geogrid to be woven in the future) The inclined ribs 11a are supplied to the first inclined guide block 211a and the second inclined guide block 211b constituting the inclined guide device 210 of the 210.

Then, when the inclined rib 11a is supplied to the coupling yarn (11c) wound on the coupling yarn bobbin 220 to the coupling guide 240 through the guide roller 250, the coupling guide 240 The two strands of the combined yarn 11c passing through) are supplied to the first combined yarn guide block 212a and the second combined yarn guide block 212b, respectively, which constitute the combined yarn guide device 212.

Weft rib (11b) consisting of a plurality of strands of weft (11b-1) for supplying a weft feeder (not shown) to the loom 210 is supplied with the inclined rib (11a) and the coupling yarn (11c). Weaving is performed while supplying. The weaving process will be described in more detail as follows.

First, the winding and unwinding device 214 is operated to lower the first inclined guide block 211a through the wire w, and the second inclined guide block 211b is raised and lowered in the weft supply device (not shown). The weft rib 11b made of several strands of weft 11b-1 is supplied through a pair of warp ribs 11a formed in a '<' form, and then cut at a predetermined length through the weft rib 11b. ) After the cutting, the winding and unwinding device 214 is operated again to raise and lower the first inclined guide block 211a that has been lowered via the wire w, and the second inclined guide block 211b that has been elevated. ) Is lowered to weave (weave) the pair of warp ribs 11a to cover the top and bottom surfaces of the weft ribs 11b.

Meanwhile, when the inclined rib 11a is supplied through the first inclined guide block 211a and the second inclined guide block 211b, the first combined yarn guide block 212a and the second combined yarn guide block 212b are provided. Through the coupling yarn 11c is supplied, and in more detail, before the weft rib 11b is inserted between the inclined ribs 11a, the winding-out device 214 is operated to wire (w). The weft rib 11b is inserted between the inclined ribs 11a in a state where the first combined yarn guide block 212a and the second combined yarn guide block 212b are simultaneously lowered through a), and the winding-out apparatus is wound. 214 is operated to simultaneously lower the first combined yarn guide block 212a and the second combined yarn guide block 212b through the wire w, and at the same time, the first combined yarn guide block 212a through the pneumatic cylinders 213 and 213 '. The binder yarn guide block 212a moves from left to right, and the second binder yarn guide block 212b moves from right to left to cross each other.

Then, when the warp rib 11a and the weft rib 11b that are woven (weaved) move forward, the winding / unwinding device 214 operates the first combined yarn guide block that is lowered through the wire w. 212a is raised and lowered, and the second combined yarn guide block 212b, which is elevated, is lowered, and similarly, the first winding and lifting device 214 is operated again. The weft rib 11b and the weft rib 11b are inserted between the warp rib 11a in a state in which the twisted yarn guide block 212a and the second twisted yarn guide block 212b are simultaneously lowered. Are weaved (weaved) with each other and at the same time through the intersection of the warp rib 11a and the weft rib 11b through the coupling yarn 11c through the zigzag to intersect the intersection by the coupling yarn 11c When fixed, and undergoes a series of repetition process as described above, the woven geogrid as shown in Figure 5 It is.

In particular, in the case of the pair of binding yarns (11c), a pair of binding yarns (11c) are formed in a zigzag repeating cross ('X' shape) along the top surface of the inclined rib (11a).

On the other hand, the twisted yarn guide device 212, contrary to the second embodiment, the first twisted yarn guide block (212a) and the second twisted yarn guide block (212b) on the basis of the weft rib (11b) in the horizontal direction The binder yarn 11c formed by the binder yarn guide device 212 may be positioned at a lower side, and the pair of yarns 11c may be inclined ribs 11a as opposed to the aforementioned second embodiment. It is formed by repeating zigzag ('X' shape) along the bottom of the.

According to an embodiment of the present invention, a pair of through the coupling yarn guide device 212 is passed in a zigzag through the coupling yarn (11c) through the intersection of the inclined rib (11a) and the weft rib (11b) in the opposite direction to each other Geogrid that can secure the deformation due to the fine twisting of the mutually woven (weave) warp rib 11a and the weft rib 11b, thereby providing excellent elongation and greatly improving contact strength. There is an advantage of weaving (weaving).

For reference, both ends of the weft rib 11b woven (weaved) by the weaving machine 210 are sewn in order to prevent the weft yarn (11b-1) consisting of a plurality of strands from being loosely distracted. Stitched weft binding unit 12 is formed through the (not shown), the lockstitch device (not shown) is already well known in the art, more specific structure and operation principle will be omitted.

Geogrid main body 11 formed of the inclined rib (11a), weft rib (11b) and coupling yarn (11c) to form a lattice completed through the loom 210 of the weaving part 200, stitching device (not shown) Geogrid 10 having a weft binding portion 12 formed by the second through the discharge supporting roller 260 via the first discharge guide roller 270, the second discharge guide roller 280 and the first inlet It is supplied to the resin solution coating unit 300 through the induction roller 290.

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. 6, 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.

6 to 10, the weft elongation control device (420, 420 ') is installed on the main body of the drying unit 400, more preferably as installed on the lower side of 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 lifting 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.

On the other hand, the geogrid 10 woven (woven) through the first to the second embodiment, the drying unit 400 is provided with a pair of weft elongation control device (420,420 ') reinforcement, both ends of the geogrid 10 That is, by allowing the weft binding unit 12 to be moved to the inclined tension generating device 500 in a state of being fitted to the weft elongation control device (420,420 '), the geogrid 10 by the heat of the hot plate 410 The weft ribs 11b can block the shrinkage at the source, and there is an advantage that the geogrid 10 can be manufactured 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
211: inclined guide device 211a: first inclined guide block 211b: second inclined guide block
212: binder yarn guide device 212a: first binder yarn guide block w: wire
212b: second binder yarn guide block 213.213 ': pneumatic cylinder 214: winding-out
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 (13)

Weaving the warp ribs 11a and weft ribs 11b consisting of several strands of warp 11a-1 and weft 11b-1 through the warp guide device 211 of the loom 210, but weaving is performed. Intersecting portions of the inclined rib 11a and the weft rib 11b which are repeatedly generated by supplying the combined yarn 11c together with the inclined rib 11a through the combined yarn guide device 212 of the loom 210. Weaving unit 200 for weaving the; The geogrid 10 having the geogrid body 11 and the weft binding unit 12 which are discharged from the weaving unit 200 and moved to the inclined tension generating induction unit 500 via the resin solution coating unit 300 are hot plated. In the geogrid manufacturing apparatus having a drying unit 400 for drying through the 410,
The binder yarn guide device 212 is provided with a first binder yarn guide block 212a and a second binder yarn guide block 212b, respectively located on the upper side and the lower side with respect to the horizontal weft rib 11b. The elongation is excellent and deformed, characterized in that the intersecting portion of the inclined rib (11a) and the weft rib (11b) in a zigzag direction to pass the pair of coupling yarn (11c) in a reverse direction to each other to weave and fix the intersection portion Geogrid manufacturing apparatus with improved contact strength.
Weaving the warp ribs 11a and weft ribs 11b consisting of several strands of warp 11a-1 and weft 11b-1 through the warp guide device 211 of the loom 210, but weaving is performed. Intersecting portions of the inclined rib 11a and the weft rib 11b which are repeatedly generated by supplying the combined yarn 11c together with the inclined rib 11a through the combined yarn guide device 212 of the loom 210. Weaving unit 200 for weaving the; The geogrid 10 having the geogrid body 11 and the weft binding unit 12 which are discharged from the weaving unit 200 and moved to the inclined tension generating induction unit 500 via the resin solution coating unit 300 are hot plated. In the geogrid manufacturing apparatus having a drying unit 400 for drying through the 410,
The binder yarn guide device 212 is provided with a first binder yarn guide block 212a and a second binder yarn guide block 212b, but is located on the upper side of the weft rib 11b in a horizontal direction. The elongation is excellent, and the strain and contact strength are characterized in that the intersecting portions of the inclined ribs 11a and the weft ribs 11b pass in a zigzag direction to intersect the paired coupling yarns 11c. Improved geogrid manufacturing apparatus.
Weaving the warp ribs 11a and weft ribs 11b consisting of several strands of warp 11a-1 and weft 11b-1 through the warp guide device 211 of the loom 210, but weaving is performed. Intersecting portions of the inclined rib 11a and the weft rib 11b which are repeatedly generated by supplying the combined yarn 11c together with the inclined rib 11a through the combined yarn guide device 212 of the loom 210. Weaving unit 200 for weaving the; The geogrid 10 having the geogrid body 11 and the weft binding unit 12 which are discharged from the weaving unit 200 and moved to the inclined tension generating induction unit 500 via the resin solution coating unit 300 are hot plated. In the geogrid manufacturing apparatus having a drying unit 400 for drying through the 410,
The binder yarn guide device 212 is provided with a first binder yarn guide block 212a and a second binder yarn guide block 212b, but is located below the weft rib 11b in a horizontal direction. The elongation is excellent, and the strain and contact strength are characterized in that the intersecting portions of the inclined ribs 11a and the weft ribs 11b pass in a zigzag direction to intersect the paired coupling yarns 11c. Improved geogrid manufacturing apparatus.
4. The method according to any one of claims 1 to 3,
In the drying unit 400,
Weft elongation control device (420, 420 ') to suppress the contraction in the weft direction of the geogrid 10 by the hot plate 410 while fixing the weft binding portion 12 formed on both ends of the geogrid 10, respectively Geogrid manufacturing apparatus with excellent elongation, characterized in that the reinforcement is further provided to improve deformation and contact strength.
The method of claim 4, wherein
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;
The geogrid manufacturing apparatus is excellent in elongation and improved deformation and contact strength, 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 5,
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 with excellent elongation and improved deformation and contact strength.
The method of claim 6,
The drying unit 400, the geogrid manufacturing apparatus is excellent in elongation, and improved deformation and contact strength, characterized in that the reinforcement is further provided with a reflecting plate 430 reflecting the heat emitted from the hot plate (410).
By supplying the inclination (11a-1) of the inclined supply unit 100 to the weaving unit 200 through the inclined guide device 211 and the combined yarn guide device 212 constituting the loom 210 of the weaving unit 200 Weaving (weaving), but gathering several strands (11a-1) and wefts (11b-1), respectively, to form a warp rib (11a) and weft ribs (11b) to form a grid (mesh) weaving (manufacturing) When weaving, the interlocking portions of the inclined rib 11a and the weft rib 11b which are repeatedly generated by supplying the combined yarn 11c together with the inclined rib 11a are zigzag to pass the combined yarn 11c. By interweaving the intersecting parts 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, the integrally formed geogrid body portion ( 11) and the weft binding part 12 are supplied to the resin solution coating part 300, and the geogrid body part 11 and the weft binding part 12 are supplied to the resin solution 320 ) And the resin solution 320 is coated (coated) on the outer surface of the geogrid body part 11 and the weft binding part 12 by passing through the coating tank 310 filled with the resin solution 320. The geogrid body portion 11 and the weft binding portion 12 is passed through the squeegee roller portion 360 to maintain a constant thickness, and the resin solution 320 is coated and pressed into a constant thickness geogrid body portion 11 And the weft binding unit 12 is passed through the drying unit 500 provided with the hot plate 410 in a state in which the tension is applied by pulling the medium through the inclination tension generating induction unit 500 so that the coated resin solution is dried. To form the resin solution coating layer 11d on the outer surfaces of the geogrid body portion 11 and the weft binding portion 12, and the geogrid body portion 11 and the weft binding portion 12 on which the resin solution coating layer 11d is formed are wound. In the geogrid wound around the mounting 600,
The weft binding unit 12 is fixed to be moved in a state in which a constant tension is applied by the weft elongation control device (420,420 ') in the course of passing through the drying unit 400 is moved to the inclination tension generating induction unit 500 Geogrid, characterized in that.
The method of claim 8,
The coupling yarn 11c is zigzag and intersects the crossing portions of the warp rib 11a and the weft rib 11b in a reverse direction from each other in a pair, and weaves and fixes the pair of the coupling yarns 11c. One is formed in a zigzag along the top surface of the inclined rib (11a), the other is a geogrid characterized in that formed in a zigzag along the bottom of the inclined rib (11a).
The method of claim 8,
The coupling yarn 11c is a pair of binding yarns (11c) by weaving the intersection by passing through the intersection of the inclined rib (11a) and the weft rib (11b) in a zigzag in a reverse direction to each other, Geogrid, characterized in that it is formed by repeated cross-zigzag along the upper surface of the inclined rib (11a).
The method of claim 8,
The coupling yarn 11c is a pair of binding yarns (11c) by weaving the intersection by passing through the intersection of the inclined rib (11a) and the weft rib (11b) in a zigzag in a reverse direction to each other, Geogrid characterized in that it is formed by repeated cross-zigzag along the bottom of the inclined rib (11a).
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