KR102215551B1 - Smart inner tube supply unit for winding tubing repair and reinforcement tube manufacturing and repair and reinforcement tube winding method using this same - Google Patents

Abstract

The present invention relates to a smart inner tube supply unit for manufacturing a winding type pipe repair and reinforcement tube and a repair and reinforcement tube winding method using the same. An objective of the present invention is to enable a reinforcing fiber to be wound around a circumference part of an inner tube by stably supplying the inner tube which is to be disposed on an inner side (a part where water flows) of a repair and reinforcement tube, check a position of a mold which supports the inner tube, and locate the mold at the center line of the winding when the mold is away from the correct position. According to the present invention, the smart inner tube supply unit for manufacturing a winding type pipe repair and reinforcement tube is configured to load and supply an inner tube for manufacturing a repair and reinforcement tube which is to be lined inside an underground pipeline. The smart inner tube supply unit for manufacturing a winding type pipe repair and reinforcement tube comprises: a frame (10); a cantilever-type support pipe (20) which has one side connected to the frame and a circumference part on which the inner tube is loaded; a mold (30) which is formed on the support pipe and inserted into the center of the winding unit, and supports the inner tube supplied from the support pipe; a position sensor which locates the mold at the center of the winding unit through position correction of the support pipe and detects the position of the support pipe or the mold; a support pipe alignment means which moves a free end part of the support pipe; and a controller which compares a detection value of the position sensor with a pre-stored reference value and aligns the support pipe and the mold at the correction position through the control of the support pipe alignment means. Accordingly, the position of the mold can be actively aligned.

Description

Smart inner tube supply unit for winding tubing repair and reinforcement tube manufacturing and repair and reinforcement tube winding method using this same}

The present invention relates to a winding-type manufacturing facility for an underground conduit repair and reinforcement tube, and more particularly, to supply an inner tube to manufacture a winding-type conduit repair and reinforcement tube, and to correct the position despite the load of the support pipe and the mold. The present invention relates to a smart inner tube supply unit for manufacturing a winding-type conduit repairing and reinforcing tube that supplies the inner tube to the correct position, and a repair and reinforcement tube winding method using the same.

This part provides background information related to the content of the present application, and is not necessarily prior art.

In general, a pipe is a pipe for moving drinking water (water pipe), sewage (sewer pipe), rainwater (rainwater), and sewage, and is a structure buried in the ground.

These pipes are buried for a long time and are aged or cracks are generated due to ground subsidence or ground behavior, and fluid leakage and penetration of groundwater through the cracks require maintenance and replacement of the pipelines. Because cost and time are consumed, a method of repairing a pipe instead of replacing a pipe by excavation has been mainly developed and used.

As a conventional pipe repair method, there is a non-excavated pipe repair method.

In such a method of repairing a non-drilling pipe, after inserting a repair tube (cured resin) into the pipe to be repaired, the repair tube is expanded to adhere to the inner wall of the pipe, and the cured resin is cured on the inner wall of the pipe.

The repair tube of the non-drilling pipe is being developed as a product to achieve the two purposes of repair and reinforcement. For example, Patent Document (Registration Patent No. 10-1166247) is a tubular type made of felt coated with a film on one side. A reinforcing tube; A hybrid lining tube formed outside the reinforcing tube; Vinyl ester, epoxy, unsaturated polyester, phenolic resin and urethane resin as any one selected from the group containing a thermosetting resin impregnated in the reinforcing tube and the hybrid lining tube, the hybrid lining tube, the hybrid fabric, the hybrid Including a non-woven fabric laminated on the outside of the fabric, the hybrid fabric is a water and sewage pipe reinforcement repair tube using a hybrid fabric formed by laminating polyester non-woven fabric, glass fiber, and aramid fiber from the inner diameter side.

As a method of manufacturing a conventional pipe repair and reinforcement tube, there are a method of sealing both left and right sides in a state where the film is stacked up and down, and a method of winding a resin-impregnated film, and the present invention relates to a winding type manufacturing method. We will only explain the technology.

The patent document (US 2018/0281270 A1) is configured to prepare for supply by inserting an inner film hose on the circumference of a support tube, and to be more specific, the inner tube hose is supplied. It is mounted on a position away from the support tube while being wound on a supply roll, and is accommodated in the circumference of the support tube after passing through the circumference of the mandrel connected to the support tube in the same axis while being unwound from the supply roll. do. At this time, the inner tube hose has a length ranging from tens of m to about a hundred m according to the length of the repair and reinforcement tube, but it is difficult to manufacture and use the support (support tube) the same as the length of the inner tube hose. The tube hose is stacked and accommodated. Of course, since the length of the inner tube hose is very long, the support tube cannot be too short, so the support tube is also manufactured and used with a length of, for example, 5m or more.

More specifically, the support should be manufactured to be at least 5 meters long due to the need for a space for mounting the inner tube hose with a relatively long length due to the characteristics of the facility (mounting the inner tube hose up to 200M). In addition, in the case of an inner tube hose with a small diameter, for example, for an inner tube hose with a diameter of 250mm, the diameter of the support should be around 200mm.However, the supporter with a diameter of 200mm or more 5M or more is mounted with a cantilever to maintain rigidity during operation and minimize the runoff. It is not easy.

In the inner tube hose supply unit according to the prior art, since the support tube has a cantilever structure in which only one side in the longitudinal direction is supported by the frame and the other side is floating in the air, the free end not supported by the frame is bound to sag in the direction of gravity. In particular, since the support tube is used by connecting the winding shaft, the length from the frame to the winding shaft on which the support tube is supported is very long and the weight is heavy, so the sagging is more severe, and this sagging causes the frame and the supporting tube to fall off and winding When the tube is wound by the unit, there is a problem in that the quality of the product is deteriorated by causing a winding defect.

In addition, the support unit is designed to be moved back and forth in a rail method due to the characteristics of the facility, so it must be moved in every operation, and it is a structure that is very vulnerable to vertical deflection and left and right twists such as swinging by winding reinforcing fibers around the winding shaft during the winding operation.

That is, if the winding shaft does not accurately maintain the center of the winding unit, the angle of the winding is changed, resulting in a problem that the thickness of the tube is not uniform and wrinkles occur, so that the position of the mold is very important.

US 2018/0281270 A1

The present invention is to solve the above-described problems, by stably supplying the inner tube disposed inside the repair and reinforcing tube (a part through which water flows) so that the reinforcing fibers are wound around the inner tube, It is an object of the present invention to provide a smart inner tube supply unit for manufacturing a winding-type conduit repair and reinforcement tube that checks the position of the supporting mold and places the mold on the center line of the winding when it is out of the correct position, and a repair and reinforcement tube winding method using the same.

A smart inner tube supply unit for manufacturing a winding-type conduit repair and reinforcement tube according to the present invention is to load and supply an inner tube for the manufacture of a repair and reinforcement tube lining the inside of an underground pipeline, and a frame; A cantilever-type support pipe having one side connected to the frame and on which the inner tube is mounted on a circumference; Including a mold formed in the support pipe and inserted into the center of the winding unit to support the inner tube supplied from the support pipe, and positioning the mold at the center of the winding unit through position correction of the support pipe It is done in principle.

The present invention includes a position sensor for sensing the position of the support tube or the mold; A support pipe alignment means for moving the free end of the support pipe; Including a controller that compares the detected value of the position sensor with a pre-stored reference value and aligns the support pipe and the mold in a correct position through control of the support pipe alignment means, and actively aligns the position of the mold. do.

According to the smart inner tube supply unit for manufacturing a winding type conduit repair and reinforcement tube according to the present invention and a repair and reinforcement tube winding method using the same, a mold that is connected to a support pipe and/or a support pipe supplying the inner tube to support winding of reinforcing fibers If the position of the support pipe and/or mold is out of the correct position according to the check result, the support pipe and/or mold is corrected to the correct position to wind the repair and reinforcement tube to a uniform thickness overall and prevent wrinkles from occurring. It has the effect of improving product quality.

1 is a side view of a smart inner tube supply unit for manufacturing a winding-type conduit maintenance and reinforcement tube according to the present invention.
Figure 2 is an exploded perspective view of a support pipe and a mold applied to a smart inner tube supply unit for manufacturing a winding-type conduit maintenance and reinforcement tube according to the present invention.
3 is a perspective view showing a fixing plate of an alignment wire applied to a smart inner tube supply unit for manufacturing a winding conduit maintenance and reinforcement tube according to the present invention.
Figure 4 is an exemplary view showing the position of the alignment wire applied to the smart inner tube supply unit for manufacturing a winding-type conduit maintenance and reinforcement tube according to the present invention.
5 to 8 are views showing the correction of the support pipe according to the vertical, left and right alignment wire applied to the smart inner tube supply unit for manufacturing a winding-type conduit maintenance and reinforcement tube according to the present invention, respectively,
Figure 5 is a side view showing the correction of the lower sag of the support pipe.
Figure 6 is a side view showing the correction of the upper rise of the support pipe.
7 is a plan view showing correcting the right eccentricity of the support pipe.
8 is a plan view showing the correction of the left eccentricity of the support pipe.
9 is a side view showing a smart inner tube supply unit and a winding unit for manufacturing a winding-type conduit maintenance and reinforcement tube according to the present invention.
10 and 11 are exemplary diagrams of a method of checking the position of a support pipe by a distance value through a smart inner tube supply unit for manufacturing a winding-type conduit maintenance and reinforcement tube according to the present invention.

In the following description of the present invention, if it is determined that a detailed description of a related known function or configuration may unnecessarily obscure the subject matter of the present invention, a detailed description thereof will be omitted. In addition, terms to be described later are terms defined in consideration of functions in the present invention, which may vary depending on the intention or custom of users or operators. Therefore, the definition should be made based on the contents throughout this specification.

As shown in FIG. 1, the smart inner tube supply unit 100 (hereinafter abbreviated as'inner tube supply unit 100') for manufacturing a winding-type conduit maintenance and reinforcement tube according to the present invention is a frame 10, a frame 10 ) Is installed in the cantilever-type support pipe 20 on which the inner tube 1 is loaded, connected to the free end of the support pipe 20 (removably connected), and is disposed in the center of the winding unit 200 to support the support pipe ( 20) is composed of a mold 30 that allows the reinforcing fiber 2 to be wound by the winding unit 200 while maintaining the inner tube 2 in tension, and the inner tube 1 and the support tube ( 20) and the deflection due to the load of the mold 30 or the correct position due to the load generated during the winding operation (the fixed position refers to the position at the center of the winding unit) Is positioned at the center of the winding unit 200.

The frame 10 is preferably made of a bottom plate 11 and a support wall 12 erected on one side of the bottom plate 11, and is provided with a wheel 13 so as to attach the mold 30 to the winding unit 200. It is installed to be movable on the rail 14 installed on the road surface of the workshop so that it can be inserted in the center and taken out in reverse.

The movement of the frame 10 can be performed in various ways, such as a manpower type or a power type.

As shown in Figs. 1 to 3, the support pipe 20 has one side of the support wall 12 of the frame 10 in order to load the inner tube 1 and supply the loaded inner tube 1 to the mold 30. ), while the other side is in a free state and is connected only to the mold 30 in the form of a cantilever.

The support pipe 20 has a hollow part in which both sides in the longitudinal direction communicate with the outside, and the hollow part is a wiring of a cable (electric wire or hydraulic line or pneumatic line) that supplies power for expansion and contraction of the mold 30 , It is a space for a blower pipe for blowing wind, and wiring of an alignment wire to be described later.

The support pipe 20 has a uniform outer diameter along the longitudinal direction and an outward flange 21 for connection to the support wall 12 of the frame 10 and the mold 30 on both sides of the longitudinal direction, respectively. A flange 22 is included.

The flanges 21 and 22 are detachably assembled to the support wall 12 and the flange 31 of the mold 30 through bolts and nuts, respectively.

The mold 30 is supplied with the inner tube 1 from the support pipe 20 and expands the inner tube 1 to enable the winding operation of the reinforcing fiber 2 by the winding unit 200, that is, An expandable mold configured to spread toward the inner tube 1 or gather oppositely, or a fixed mold having an outer diameter for holding the inner tube 1 tightly is possible.

In the mold 30, the flange 31 on one side is detachably connected to the flange 22 of the support pipe 20.

According to this structure, the lower sagging of the support pipe 20 occurs even when the mold 30 is not connected due to the load of the inner tube 1, the load of the support pipe 20, and the load of the mold 30. In addition, when the mold 30 is connected to the support pipe 20, lower sagging of the support pipe 20 and the mold 30 occurs.

In addition, the left and right eccentricity of the mold 30 (a state inclined while going to the free end of the mold 30) may occur due to a production error or an assembly error of the mold 30, or the winding unit 200 may cause the inner tube ( When winding the mineral fiber 2 in 1), left and right eccentricity of the mold 30 may occur, and the present invention is configured to solve the above-described lower sag and left and right eccentricity.

A support pipe alignment means is included as a configuration for this.

The support pipe alignment means is composed of an alignment wire 40 and an alignment drum 50, for example.

Preferably, a plurality of alignment wires 40 are installed in various directions in accordance with the position correction of the support pipe 20, and the alignment drum 50 includes the alignment wire 40 and the alignment wire 40 to drive each alignment wire 40. Equipped in the same quantity.

Fixing of the alignment wire 40, as shown in Figs. 2 and 3, one side must be fixed to the free end of the support pipe 20, and in that way, the fixing (welding, etc.) fixed to the inner circumferential surface of the support pipe 20 Each of the fixing nuts 42 is fixed to the plate 41 by fastening.

The fixing plate 41 does not close the hollow portion of the above-described support pipe 20 and is smaller in size than the hollow portion, but has a structure including a hole for wiring such as a cable.

A protective tube to which the alignment wire 40 is wired may be included in the support tube 20.

Alignment wire 40 is a position for correcting the position of the support pipe 20, for example, as shown in FIG. 4, the support pipe 20 to correct the lower sag of the support pipe 20 A sagging alignment wire 40-1 wired to the upper part of the support pipe 20, a raised alignment wire 40-2 wired to the lower part of the support pipe 20 to correct the upward rise of the support pipe 20, and the support pipe 20 Left alignment wire 40-3 wired to the left of the support pipe 20 to correct the right eccentricity of the support pipe 20, right alignment wired to the right of the support pipe 20 to correct the left eccentricity of the support pipe 20 A wire 40-4 (the above alignment wires may be referred to as vertical and horizontal (0°, 90°, 180°, 270°) alignment wires).

As shown in FIG. 5, the sagging alignment wire 40-1 lifts the support pipe 20 upward while being wound around the alignment drum when the support pipe 20 is sagging at the bottom of the support pipe 20 to correct.

As shown in FIG. 6, the rising alignment wire 40-2 lowers the supporting tube 20 to the lower side while being wound around the alignment drum when rising above the supporting tube 20.

Therefore, the sagging alignment wire 40-1 and the rising alignment wire 40-2 are installed at one place above or below the support pipe 20, and are wound around the alignment drum when the support pipe 20 is sagged at the bottom of the support pipe. A single type is also possible in which the support pipe 20 is lowered and corrected by pulling 20 to raise it to the upper side and to be released from the alignment drum when the upper rises.

In addition, as shown in FIG. 7, the left alignment wire 40-3 corrects the support tube 20 to the left while being wound around the alignment drum when the right side of the support tube 20 is eccentric.

As shown in FIG. 8, the right alignment wire 40-4 corrects the support pipe 20 to the right while being wound around the alignment drum when the support pipe 20 is eccentric to the left.

That is, the left alignment wire 40-3 and the right alignment wire 40-4 are installed at one place on the right side of the support pipe 20, and are wound around the alignment drum when the left side of the support pipe 20 is eccentric, and the support pipe 20 ) Is pulled to the right to correct, and on the contrary, when the right eccentric is released from the alignment drum, a single type of correcting the support pipe 20 to the left is also possible.

Of course, the alignment wire 40 is not limited to the above-described vertical left and right alignment wires, and may be additionally wired and used between them based on this (FIG. 2 is shown as six alignment wires).

That is, the alignment wire 40 aligns the position and the position of the support pipe 20 through various modifications of winding/unwinding, and is not necessarily limited to the position described above.

The alignment wire 40 is a flexible material, but is not limited thereto and may vary depending on the alignment drum 50.

Meanwhile, the alignment drum 50 is fixedly installed on the frame 10 in various ways, and the position of the support pipe 20 is corrected by adjusting the length by winding or unwinding the alignment wire 40 while rotating in both directions by a motor. .

The present invention is not limited to a combination method of the alignment wire 40 and the alignment drum 50, and is replaced by an inflexible alignment bar, and the alignment drum 50 is replaced with a cylinder or rack/pinion that reciprocates the alignment bar. I can.

The present invention detects a change in the position of the support tube 20 and determines the position correction based on the detection result, and then an automatic (active) alignment driving the alignment drum 50 or an administrator confirms the correction direction and manually Manual alignment is possible by directly turning the alignment drum 50 to wind or unwind the alignment wire 40 to align the support tube 20.

However, for automatic alignment, a position sensor for checking the position of the support pipe 20, a controller for controlling the driving of the alignment drum 50 through comparison of the detected value of the position sensor and a reference value, In this case, it includes a monitor that displays the detection value and/or the reference value of the position sensor and the position sensor on a screen.

The position sensor can be any product for confirming the position of the support pipe 20, and the following sensors are possible, and a specific sensing method is as follows.

First, the sensor is preferably a non-contact position sensing method, because the mold 30 is surrounded by a resin-impregnated reinforcing fiber during the winding process, so that the laser cannot penetrate and the contact-type position sensing method is impossible due to the viscosity of the resin.

1. Mold position sensing.

An angle sensor is installed in the center of the mold 30 to check the longitudinal position of the mold 30, that is, to measure deflection and rise, and an alignment wire length sensor is connected to the left and right of the mold 30 to measure the degree of distortion. Then, measure the degree of distortion of the left and right by measuring the length (determining the distortion of the left and right through comparison of the left and right lengths or the comparison of the standard and left and right lengths).

2. Sensing the relative position of the mold (or reinforcing fibers wound around the mold).

As shown in FIG. 9, in order to wind the reinforcing fibers 2 on the circumference of the inner tube 1 fitted in the mold 30, the mold 30 is disposed at the center of the winding unit 200, and the winding unit 200 ) From both sides of the longitudinal direction (the front where the inner tube 1 is supplied, the rear where the reinforcing fiber 2 is wound) to the mold 30 (the reinforcing fiber 20 wound around the mold 30) After measuring each, the position of the mold 30 is determined by comparing the two values.

When describing the winding unit 200, the frame 210 and the frame 210 are rotatably installed and installed in the cylindrical winding frame 220 in which the mold 30 is inserted and arranged, and the winding frame 220 And it consists of a winding roll 230 for winding the reinforcing fibers (2).

The winding frame 220 is a configuration in which the first and second rotor plates 221 and 221 in the form of circular rings arranged at a predetermined distance from each other along the longitudinal direction of the mold 30 are connected by connecting rods.

The distance sensor (laser method, ultrasonic method, etc.) is a combination of distance sensors (S1, S2, S3, S4) installed on the first and second rotor plates 221 and 22 of the winding frame 220, respectively, and is positioned in the longitudinal direction. It is installed in various ways to check the (sagging and rising) and the transverse position (twisted left and right) to provide position values, and the drawing shows an example of installation of the distance sensors (S1, S2, S3, S4).

An example of providing location information of the mold 30 by a distance sensor is as follows.

10 is a side view showing an example of sagging, and sagging is determined by comparing the upper and lower distance values (D1, D2) at the front and the upper and lower distance values (D3, D4) at the rear, and the following conditions are sag to be.

D1 = D2, D3>D4

Conversely, the condition of D1 = D2, D3<D4 is welling.

FIG. 11 is a plan view showing an example of left distortion, and it is determined by comparing the left and right distance values (D5, D6) in the front and the left and right distance values (D7, D8) at the rear, and the following conditions are It's a left twist.

D5 = D6, D7<D8

Conversely, the condition of D5 = D6, D7> D8 is right-handed.

3. Alignment wire tension sensing.

After measuring the tension of each of the alignment wires 40 in advance, it is determined to be distorted by comparing the tension value during the winding operation. The tension of the alignment wire 40 is a method of measuring the tension value of the alignment drum 50 (or motor) respectively connected to the alignment wire 40, the refraction connected to the load cell at the end of the alignment wire 40 (in the direction of the support tube). There is a method of measuring tension by installing a roller.

A method of winding a reinforced maintenance tube using a smart inner tube supply unit for manufacturing a winding type conduit maintenance reinforcement tube according to the present invention is as follows.

1. Loading the inner tube.

The inner tube 1 is wound around the feed roll 3, and the feed roll 3 is mounted around the inner tube feed unit 100. The inner tube 1 wound around the supply roll 3 is inserted into the circumference of the support tube 20 and loaded.

2. Inner tube supply.

In order to wind the reinforcing fibers 2 on the circumference of the inner tube 1, the inner tube 1 is supplied to the winding unit 200, and the operation is as follows.

The inner tube supply unit 100 is moved or the winding unit 200 is moved so that the mold 30 of the inner tube supply unit 100 is inserted into the winding unit 200.

Connect the end of the inner tube 1 to the feeding part.

3. Reinforcing fiber winding.

The reinforcing fibers 2 are wound around the inner tube 1 through the driving of the winding unit 200 while transporting the inner tube 1 through the feeding part.

4. Position correction.

During the above process, the position of the support pipe 20 or the mold 30 is sensed, and the support pipe 20 or the mold 30 is compared using the current position value and the reference value or a relative value using the current position value. Determine the local location of

If it is determined that the position of the support pipe 20 or the mold 30 is out of the correct position as a result of the determination, the support pipe 20 is aligned and corrected to the original position.

10: frame, 11: bottom plate
12: support wall,
20: support pipe
30: mold, 40: alignment wire
50: sorting drum,
100: Smart inner tube supply unit for manufacturing winding conduit repair and reinforcement tubes,
200: winding unit, 210: frame
220: winding frame, 221,222: first and second rotor plates
230: reinforcing fiber roll,

Claims (6)

It is to load and supply the inner tube for the manufacture of the repair and reinforcement tube lining the inside of the underground pipeline,
Frame;
A cantilever-type support pipe having one side connected to the frame and on which the inner tube is mounted on a circumference;
A mold formed on the support pipe and inserted into the center of the winding unit to support an inner tube supplied from the support pipe;
A position sensor for sensing the position of the support tube or the mold;
A support pipe alignment means for moving the free end of the support pipe;
Including a controller for aligning the support pipe and the mold in a correct position by controlling the support pipe alignment means through comparison of the detection value of the position sensor and a pre-stored reference value or relative comparison by a plurality of detection values, the support Correcting the mold to be located in the center of the winding unit through the position correction of the tube,
The support pipe alignment means, a plurality of alignment wires arranged radially inside the support pipe and fixed at one side to the free end of the support pipe,
And an alignment drum for aligning the position of the mold by fixing the other side of the alignment wire and receiving power through the control of the controller and winding or unwinding the alignment wire and moving the support pipe up, down, left and right. Smart inner tube supply unit for manufacturing winding conduit repair and reinforcement tubes. delete delete The method according to claim 1, wherein the position sensor outputs the detected value on the screen, and the support pipe alignment means adjusts the position of the support pipe through an operation of a manager, supplying a smart inner tube for manufacturing a winding pipe repair and reinforcement tube. unit. delete As a maintenance reinforcement tube winding method using a smart inner tube supply unit for manufacturing a winding type conduit maintenance reinforcement tube according to claim 1,
A first step of loading the inner tube into the support pipe of the smart inner tube supply unit for manufacturing a winding-type conduit maintenance and reinforcement tube;
A material for winding the reinforcing fiber to the inner tube through the winding unit by inserting the mold connected to the support pipe of the smart inner tube supply unit for manufacturing the winding type conduit maintenance and reinforcing tube into the inside of the winding unit and supplying the inner tube to the winding unit. Step 2;
During the first and second steps, the position sensor configured in the smart inner tube supply unit for manufacturing the winding conduit maintenance and reinforcement tube detects the position of one or more of the support pipe and the mold, and the controller detects the position based on the detected value. After determining the position of the support pipe and the mold, a third step of correcting the positions of the support pipe and the mold by controlling the support pipe alignment means. Repair and reinforcement tube winding method.

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