KR101893019B1 - Eccentricity compensation device of geogrid production facility - Google Patents

Abstract

The present invention relates to an eccentricity correction device of a geogrid manufacturing device which is installed on a transport conveyor belt and corrects eccentricity of a geogrid fabric, in a geogrid manufacturing device. According to an embodiment of the present invention, the eccentricity correction device of a geogrid manufacturing device comprises: an eccentricity measuring part installed on the transport conveyor belt of the geogrid manufacturing device, and measuring the eccentricity of the geogrid fabric; and an eccentricity correction roller part separated from the eccentricity measuring part in a transport direction, and correcting the eccentricity of the geogrid fabric.

Description

TECHNICAL FIELD [0001] The present invention relates to an eccentricity correction apparatus for a geogrid manufacturing apparatus,

The present disclosure relates to an apparatus for correcting an eccentricity of a geogrid manufacturing apparatus which is provided on a conveying conveyor belt in a geogridde production apparatus and corrects the eccentricity of a geogrid fabric.

Geogrid is used as a reinforcing material for soil structures and grounds, mainly for reinforcing retaining walls and reinforcing ground in civil engineering works.

1 is a schematic configuration diagram of a geogrid manufacturing apparatus disclosed in Korean Registered Patent Publication.

1, the geogrid manufacturing apparatus 1 includes a warp supply unit 10, a woven unit 20, a resin solution coating unit 30, a drying unit 40, a tension generating induction unit 50, 60, and the like.

The warp feeder 10 feeds a warp yarn to the plurality of bobbin loading frames 12 and feeds them to the weaving unit via the draw-in guide roller 14. [

The weaving unit 20 is an apparatus for manufacturing a grid-like geogrid fabric by weaving mutually oblique ribs, weft ribs, and binding yarns through a weaving machine 21, which includes a loom 21, a weft supply device (not shown) A discharge guide roller 23, and the like. The loom 21 weaves the grid-like net through the weft ribs supplied by the warp feeder 10 and the warp ribs made up of a plurality of strands of warp yarn fed from the warp feeder 10. At this time, a binding yarn is used for binding the warp ribs and the weft ribs. To this end, a binding yarn guide 24 and a comb yarn guide device 25 may be provided at the lower part of the loom.

The resin solution coating portion 30 may be composed of a coating bath 31, a coating guide roller 33, a discharge guide roller 34, etc., in which the resin solution 32 is stored. The geogrid discharged from the woven section 20 is discharged through the coating guide roller 33 to the discharge inducing roller 34. At this time, the coating guide roller 33 of the resin solution coating section 30 discharges the resin Solution is applied.

The drying unit 40 is configured to dry the resin solution applied to the geogrid and includes a heat plate 42 for emitting heat by an electric heat source or the like and a reflector 42 for reflecting the heat emitted by the heat plate 42 to irradiate the geogrid A discharge guide roller 44, and the like.

The tension generating inducing unit 50 applies external pressure to the dried geogrid in the drying unit 40 so that the geogrid can have a constant tension. To this end, the tension generating induction unit 50 includes a pulling induction roller 52 for guiding the pulling of the geogrid, a tension generating guide roller 54 for applying external pressure to the geogrid, a discharge guide roller 56 for guiding the geogrid discharge, It consists of ...

The winding unit 60 is a device for winding the finished geogrid by being pulled out from the tension generating induction unit 50. The winding unit 60 includes a winder 62 for winding the geogrid and a pair of guide rollers 64 for guiding the geogrid to the winder, .

The geogrid manufacturing apparatus is divided into a weaving process by the weaving unit 20 and a drying process by the coating process 30 and the drying unit 40 and a tension applying process by the tension generating induction unit 50 . Once the geogrid fabric is fabricated by the weaving part, the fabric is transferred to the next process by the conveying conveyor belt.

However, eccentricity acts on the geogrid fabric due to the physical properties of the geogrid in the process of fabricating the geogrid fabric by the weaving process and discharging it or discharging it by the discharge guide rollers 33 and 44 of the subsequent process such as the drying process, The fabric is often not positioned at the center of the conveying belt and is biased to one side. As a result, there is a problem that the smooth operation is not performed in the next process and the uniformity of the product is not secured.

KR 10-1112087 B1

An eccentricity correction apparatus for a geogrid manufacturing apparatus capable of correcting an eccentricity of a geogrid fabric in a transportation process in order to solve the above-described problems is provided.

The technical problem to be solved by this embodiment is not limited to the above-mentioned problems, and other matters not mentioned can be clearly understood by a person skilled in the art from the following description.

An eccentricity correction apparatus of a geogrid manufacturing apparatus according to an embodiment of the present invention includes an eccentricity measuring unit installed on a conveying conveyor belt of a geogrid manufacturing apparatus for measuring an eccentricity of a geogrid fabric, And an eccentricity correcting roller portion for correcting the eccentricity.

Here, the eccentricity compensation roller unit may include upper and lower rollers which are disposed on the conveying conveyor belt so that the geogrid raw material is inserted so as to insert the geogrid raw material, and rotate left and right with respect to the center rotational axis positioned at the center in the longitudinal direction, .

The eccentricity compensating roller portion includes left and right plates vertically disposed on the right and left sides of the conveying conveyor belt to support both sides of the upper and lower rollers, a horizontal plate having both ends coupled to the lower ends of the left and right plates, And a rotation driving unit for rotating the rotation driving unit.

The rotation driving unit may include a driving motor positioned at the center of the lower portion of the horizontal plate and a connector having a rectangular cross-sectional shape which is provided at an end of the motor shaft of the driving motor and is fitted into the fitting groove of the horizontal plate.

Here, the rotation driving unit is characterized in that when the geogrid material is eccentric to the right or left, the horizontal plate is rotated clockwise or counterclockwise.

On the other hand, a guide wheel for guiding the left and right plates to smoothly move when the horizontal plate is rotated left and right may be provided at the lower end of the left and right plates.

The eccentricity measuring unit includes a pair of plate-shaped guide members which are provided on the left and right sides of the conveying conveyor belt and are supported by the elastic members and are displaced by a predetermined distance when contacting the geogrid fabric, And a displacement meter for measuring the eccentricity of the geogrid fabric.

Here, the displacement gauge may be any one of a laser displacement sensor and an eddy current displacement sensor.

According to the disclosure, in the geogridde production apparatus, the eccentricity of the geogrid fabric is corrected during the transportation process, thereby ensuring the uniformity of the product and improving the quality.

The effects of the embodiments are not limited to the effects mentioned above, and other effects not mentioned can be clearly understood by those skilled in the art from the description of the claims.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a schematic diagram of a conventional apparatus for manufacturing a geogrid. FIG.
2 is a use state diagram of an eccentricity correction apparatus of a geogrid manufacturing apparatus according to an embodiment.
3 is a perspective view of the eccentricity measuring unit shown in Fig.
4 is a perspective view of the eccentricity correction roller portion shown in Fig.
5 is an exemplary view showing a connection structure between the horizontal plate and the rotation driving unit shown in FIG.
6 is an exemplary view for explaining a method of correcting an eccentricity of an eccentricity correction apparatus of a geogrid manufacturing apparatus according to an embodiment;

Hereinafter, a "eccentricity correction apparatus for a geogrid manufacturing apparatus" (hereinafter abbreviated as "eccentricity correction apparatus") according to a preferred embodiment will be described in detail with reference to the accompanying drawings. In the following description, a detailed description of known functions and configurations incorporated herein will be omitted when it may make the subject matter of the present invention rather unclear.

2 is a use state diagram of an eccentricity correction apparatus according to an embodiment.

Generally, as described in the technical background of the invention of the present invention, the geogridde manufacturing apparatus generally includes a weaving process by a weaving portion, a coating process by a resin solution coating portion, a drying process by a drying portion, And a tension applying process.

The eccentricity correction device according to one embodiment corrects the eccentricity correction device when the geogrid fabric G is eccentric in the process of manufacturing the geogrid fabric G by the weaving process and discharging it or discharging it by the discharge induction roller of the subsequent process such as the drying process, , Which is installed on a conveying conveyor belt located between respective processes. It is needless to say that the geogrid manufacturing apparatus is only one example for explaining the present embodiment and can be applied to other geogrid manufacturing apparatuses.

2, the eccentricity correction device according to an embodiment includes an eccentricity measuring unit 100 installed on a conveying conveyor belt of the geogriddy manufacturing apparatus to measure the eccentricity of the geogrid fabric G, And an eccentricity correction roller unit 200 spaced apart from the eccentricity correction roller unit 200 in the conveying direction to correct the eccentricity of the geogrid tail G.

3 is a perspective view of the eccentricity measuring unit shown in FIG.

Referring to FIG. 3, the eccentricity measuring units 100 are formed as a pair, and are installed on the left and right sides of the conveying belt, respectively.

The eccentricity measuring unit 100 may include a guide member 120, a displacement gauge 130, and a displacement gauge mounting unit 150.

The guide member 120 has a plate shape having a predetermined length and is supported by the elastic member 130 and is displaced by a predetermined distance when it contacts the geogrid tail G on the conveyor belt. One end of the elastic member 130 is engaged with the inner surface of the guide member 120 and the other end is coupled to the elastic member bracket 132 located on the upper surface of the displacement gauge mounting unit 150.

Here, the elastic member 130 is configured to provide an elastic force to the guide member 120 and is formed of a coil spring. The guide member 120 may be made of various materials, but is preferably made of a metallic material.

On both sides of the guide member 120, a gently curved round portion 122 is formed toward the elastic member bracket 132 side. This is to allow the geogrid fabric G to naturally contact the outer surface of the guide member.

When the geogrid fabric G contacts the outer surface of the guide member 120, the guide member 120 is displaced inward by a certain distance. At this time, a restoring force acts on the geogrid fabric G ) Is primarily corrected.

The displacement meter 140 is installed on both sides of the conveying conveyor belt and measures the displacement of the guide member 120 and measures the eccentricity of the geogrid fabric G on the basis of the displacement.

For example, the degree of eccentricity is determined based on the difference between the displacement value measured by the displacement meter 140 located on the left side and the displacement value measured by the displacement meter 140 located on the right side. At this time, the values measured by the displacement meter 140 are transmitted to a control unit (not shown), and the control unit controls the rotation driving unit 240 based on the transmitted values.

The displacement gauge 140 may preferably comprise an eddy-current displacement sensor or a laser displacement sensor. However, in the case of an eddy current type displacement sensor, it is preferable that the material of the guide member is made of a metallic material.

The displacement gauge mounting part 150 is formed in a substantially hexahedron shape having a predetermined height, and the displacement gauge 140 and the elastic member bracket 132 are provided on the upper surface thereof.

FIG. 4 is a perspective view of the eccentricity correction roller unit shown in FIG. 2, and FIG. 5 is an exemplary view showing a connection structure between the horizontal plate and the rotation driving unit shown in FIG.

4 and 5, the eccentricity correction roller unit 200 includes left and right plates 212 and 215, upper and lower rollers 223 and 224, a horizontal plate 230 and a tilting drive unit 240 do.

The left and right plates 212 and 215 are vertically disposed on the left and right sides of the conveying conveyor belt to support both sides of the upper and lower rollers 223 and 224. The left and right plates 212 and 215 may have various shapes, but it is preferable that the left and right plates 212 and 215 are flat plates having a predetermined thickness to stably support the upper and lower rollers 223 and 224.

Guide wheels 214 and 217 are provided at the lower ends of the left and right plates 212 and 215, respectively. The guide wheel serves to guide the left and right plates 212 and 215 to move smoothly when the horizontal plate 230 rotates left and right. Here, the guide wheels 214 and 217 are rotatably fixed to a plurality of wheel brackets 213 and 216 provided at the lower ends of the left and right plates 212 and 215, respectively.

The upper roller 223 and the lower roller 224 are disposed on the conveying conveyor belt so that the geogrid raw material is inserted into the G conveying belt and are rotatably supported by the upper roller pivot shaft 221 formed on the left and right plates 212 and 215, And rotates around the pivot 222 so that the interpolated geogrid material G moves in the transport direction. Here, the gap between the upper and lower rollers 223 and 224 suffices so far that the interpolated geogrid tail G can be pressed and moved by the upper and lower rollers 223 and 224.

On the other hand, the upper and lower rollers 223 and 224 press the geogrid tail G by rotating left and right, that is, counterclockwise or clockwise, with respect to the center pivot C located at the center in the longitudinal direction, .

The horizontal plate 230 is disposed horizontally below the upper and lower rollers 223 and 224 and both ends thereof are coupled to the lower ends of the left and right plates 212 and 215. Here, the horizontal plate 230 can be screwed by a plurality of screws R in a state where both end surfaces thereof are in close contact with the inner surfaces of the left and right plates 212 and 215.

5, the horizontal plate 230 is formed in a substantially plate-like shape and has a fitting groove 232 having a rectangular cross-sectional shape so as to be able to engage with a connecting hole 242 provided in the motor shaft 244 of the driving motor Is formed. At this time, it is preferable that the fitting groove 232 is located at the center of the horizontal plate 230 corresponding to the position of the rotation driving unit 240.

With this structure, when the motor shaft 244 rotates clockwise or counterclockwise within a predetermined rotation angle range, the horizontal plate 230 also rotates to the right or to the left with reference to the central rotation axis C When the horizontal plate 230 rotates, the upper and lower rollers 223 and 224 rotate in the same direction.

The rotation driving unit 240 serves to rotate the horizontal plate 230 in the left and right directions so that the horizontal plate 230 can be rotated to the left and right with respect to the center rotation axis C. For example, when the geogrid tail G is eccentric to the right or to the left, the horizontal plate 230 is rotated clockwise or counterclockwise, and after a certain period of time, it is again rotated to the original position.

The rotation driving unit 240 includes a driving motor 246 positioned at the lower center of the horizontal plate 230 and a driving motor 246 disposed at the end of the motor shaft 244 of the driving motor 246, And a connecting hole 242 which is fitted into the through hole 232. The connection hole 242 has a rectangular cross-sectional shape corresponding to the shape of the fitting groove 232 and is coupled to the motor shaft 244 by being coupled to the end of the motor shaft 244.

In this embodiment, the shape of the fitting groove 232 and the connecting hole 242 formed in the horizontal plate 230 is a rectangular cross-section, but it is not limited thereto, and it may be a triangular or polygonal shape.

The eccentricity correction device according to the present embodiment is configured such that the coupling 242 of the rotation driving part 240 is inserted and removably fitted to the horizontal plate 230 so that the rotation driving part 240 can be easily separated from the rotor of the eccentricity correction roller part 200 And the horizontal plate 230 is provided with the guide wheels 214 and 217, which is advantageous in that it is easy to move. Therefore, when it is necessary to adjust the gap between the eccentricity measuring unit 100 and the eccentricity compensating roller unit 200 according to the degree of eccentricity of the geogrid tail G, the eccentricity compensating roller unit 200 can be easily moved to a desired position, Can be installed.

6 is an exemplary view for explaining an eccentricity correction method of an eccentricity correction apparatus according to an embodiment.

6, when the eccentricity in the right direction is applied to the geogrid tail G as shown in FIG. 6 (a), the displacement gauge 140 detects the eccentricity and measures the degree of eccentricity, Lt; / RTI > Here, although not shown, the control unit may be replaced with a control unit of an integrated management server (not shown) installed at one side of the displacement gauge installation unit 150 or controlling the geogrid manufacturing apparatus.

The control unit controls the driving motor of the rotation driving unit 240 to rotate in the right direction, that is, clockwise by a certain angle based on the measured value. In this case, the upper and lower rollers 223 and 224 of the eccentricity compensation roller unit 200 are rotated in the clockwise direction so that the right portion thereof moves forward and the left portion thereof moves rearward by a certain angle. At this time, the rotation angle of the upper and lower rollers 223 and 224 is preferably within about 20 degrees.

When the upper and lower rollers 223 and 224 rotate in the clockwise direction, the interpolated geogrid fabric G is moved to the left side, thereby correcting the deviations in the rightward direction of the geogrid fabric G, The displacement measurement values measured at the time of the measurement are normal.

When the geogrid tail G is tilted to the left by the rotating state of the upper and lower rollers 223 and 224 after a predetermined time in this state, the control unit rotates the upper and lower rollers 223 and 224 to their original positions So that the geogrid material G can always be transported while being positioned at the center. For reference, the eccentricity correction in the case where eccentricity in the left direction is applied to the geogrid fabric advances in the reverse of the above description, and a description thereof will be omitted.

The eccentricity correction apparatus according to an embodiment has the effect of securing the uniformity of the product and improving the quality by correcting the eccentricity of the geogrid fabric during the transportation in the geogridde production apparatus.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is clearly understood that the same is by way of illustration and example only and is not to be taken in conjunction with the present invention. It is to be understood that various equivalents and modifications may be substituted for those at the time of the present application.

100: eccentricity measuring unit 120: guide member
130: elastic member 132: elastic member bracket
140: Displacement meter 150: Displacement meter setting unit
200: eccentricity correction roller unit 212: left plate
213, 216: Wheel bracket 214, 217: Guide wheel
215: right plate 221: upper roller pivot shaft
222: lower roller pivot shaft 223: upper roller
224: Lower roller 230: Horizontal plate
232: fitting groove 240: rotation driving part
242: Connector 244: Motor shaft
246: drive motor 248: motor box
C: Center of gravity axis G: Geogrid fabric
R: Screw

Claims (7)

An eccentricity measuring unit installed on the conveying belt of the geogrid manufacturing apparatus for measuring the eccentricity of the geogrid fabric; And
And an eccentricity correction roller unit that is spaced apart from the eccentricity measurement unit in the transport direction and corrects the eccentricity of the geogrid fabric,
The eccentricity correction roller unit includes upper and lower rollers which are disposed on the conveying conveyor belt so as to insert the geogrid raw material so as to be interpolated, and rotate left and right with respect to a center rotational axis located at the center in the longitudinal direction, A left and a right side plates disposed at right and left sides of the conveying conveyor belt for supporting both sides of the upper and lower rollers, a horizontal plate having opposite ends coupled to lower ends of the left and right plates, And an eccentricity correcting device for correcting the eccentricity of the geogrid manufacturing device.
delete The method according to claim 1,
A fitting groove having a rectangular cross-sectional shape is formed on the bottom surface of the horizontal plate,
Wherein the rotation driving unit includes a driving motor located at the center of the lower portion of the horizontal plate and a connecting hole provided at an end of the motor shaft of the driving motor and fitted into the fitting groove and having a rectangular cross- Eccentricity correction device.
The method according to claim 1,
Wherein the tilting drive unit rotates the horizontal plate clockwise or counterclockwise when the geogrid material is eccentric to the right or left side.
The method according to claim 1,
And a guide wheel for guiding the left and right plates to smoothly move when the horizontal plate is rotated left and right is provided at the lower end of the left and right plates.
The method according to claim 1,
The eccentricity measuring unit includes a pair of left and right eccentricity measuring units,
A plate shaped guide member supported by the elastic member and displaced by a predetermined distance in contact with the geogrid fabric, and a displacement gauge measuring the eccentricity of the geogrid fabric by measuring the displacement of the guide member. An eccentricity correction device of a manufacturing apparatus.
The method according to claim 6,
Wherein the displacement gauge is one of a laser displacement sensor and an eddy current displacement sensor.

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