KR101102591B1 - method of manufacturing tube lining material - Google Patents

Abstract

The present invention relates to a method for producing a tube-lining material that can be stacked and stacked while automatically impregnating the tube-lining material while automatically maintaining the expanded portion of the curable resin and stacking the impregnated pipe-lining material.

Description

Method of manufacturing tube lining material

The present invention relates to a method for producing a tube-lining material that can be stacked and stacked while automatically impregnating the tube-lining material while automatically maintaining the expanded portion of the curable resin and stacking the impregnated pipe-lining material.

The tubular lining bag 12 is composed of a tubular nonwoven fabric impregnated with a curable resin and a plastic film attached to an outer surface of the tubular nonwoven fabric, and the tubular lining material defines a final state in which the tubular nonwoven fabric is impregnated with a resin.

As a manufacturing method for impregnating and loading a conventional tube lining material, for example, the one disclosed in U.S. Patent No. 4,366,012 has been proposed.

10 and 11, the conventional method for producing a tube lining material, the curable resin at the tip 74 of the tube lining bag 12 placed on a conveyor including a horizontal portion 66 and the inclined portion 68 To form an inflation portion 64, and a vacuum suction window 86 is formed in the tube lining bag 12, and the vacuum cup 82 of the vacuum source 80 is adsorbed to the vacuum suction window 86. The non-woven fabric of the tube lining bag 12 is sequentially vacuumed through the inside of the lining bag 12 while simultaneously passing the tube lining bag 12 between the pair of nip rollers 70 to flow the curable resin backwards (downstream). The battlefield is impregnated, and the impregnated tube lining material is stacked and stacked vertically on the loading basket.

However, the expansion portion 64 serves to apply pressure to the tubular nonwoven fabric so that the curable resin is sufficiently impregnated in the tubular nonwoven fabric, and the tubing lining bag 12 continues to move upstream and at the same time, the expansion portion 64 is vacuumed downstream. ) Size continues to decrease, so that the curable resin impregnated over the entire length of the tube lining material is not evenly subjected to expansion pressure, resulting in uneven quality.

In other words, when the impregnation of the resin is not uniform, when the reinforcement of the water supply and sewage pipe may be a place where it is attached well enough, and where it does not adhere relatively well.

In addition, the impregnated tubular lining material is adjusted in thickness by squeezing while passing through the nip roller 74. When the tubular nonwoven fabric is thicker than the gap that is controlled by a large amount of resin impregnation, it may be chewed and wrinkles may occur.

In addition, since the impregnated pipe lining material falls vertically from the top of the inclined portion, the worker should grab and adjust the shape of the pipe lining to stack it. There is a great inconvenience to carry on.

The present invention has been made in view of the above-mentioned problem, and an object thereof is to provide a method for producing a tube lining material which can impregnate resin to a sufficient depth over the whole length and directly load it on a transport vehicle.

In order to achieve the above object, the method for producing a tube lining material according to claim 1 of the present invention,

Loading a tubing lining bag having a predetermined length consisting of a tubular nonwoven fabric having a film attached to an outer surface thereof on a conveyor including a horizontal portion and an inclined portion; Forming a window for vacuum suction on the inclined side tube lining bag and the horizontal side side tube lining bag; Vacuuming the inside of the tube lining bag through the window for vacuum suction; Pressing the tube lining bag on the horizontal side of the tube lining bag in the vacuum state; Forming a window for injecting curable resin into the inclined side tube lining bag; Injecting the curable resin through the resin injection window to expand the tube lining bag to form an inflation portion as it is filled to the pressure side; Closing the window for resin injection after the curable resin is injected; Releasing the pressurized state of the tube lining bag; Manufacturing the tube lining material by sequentially impregnating the curable resin while moving the tube lining bag and moving the sealer roller relative to the conveyor to maintain the state of the inflation portion; Conveying while adjusting the thickness of the tube lining material; And stacking the conveyed pipe lining material by reciprocating sliding along its longitudinal direction.

According to this method, since the impregnation is carried out while the expansion portion is kept, the impregnation is sufficiently performed, and the tubular lining material is reciprocally slid in the longitudinal direction, so that it can be directly stacked on the transport vehicle.

Method for producing a tube lining material according to claim 2 of the present invention,

It is preferable to further include the step of pressing the tube lining material before adjusting the thickness of the tube lining material.

According to this method, the impregnating resin is first compressed before adjusting the thickness, so that the phenomenon of being chewed and wrinkled when adjusting the thickness can be prevented in advance.

As is apparent from the above description, the embodiment of the present invention has the following effects.

Since it is pushed to keep the expanded portion, pressure due to expansion is applied in the nonwoven fabric to sufficiently impregnate the film layer.

Further, by reciprocally sliding the tube lining material in the longitudinal direction thereof, it is possible to stack and stack the tube lining material directly on the transport vehicle.

In addition, prior to adjusting the thickness, the impregnated resin is first pressed to release the excess resin impregnated state, thereby preventing the phenomenon of being chewed and wrinkled when the thickness is adjusted.

Best Mode for Carrying Out the Invention Preferred embodiments of the present invention will be described below with reference to the accompanying drawings, in which like reference numerals refer to like parts and detailed descriptions thereof will be omitted.

In addition, as shown in Fig. 9, the tube lining bag 12 means a product before the thermosetting resin 5 is absorbed and impregnated into the tubular nonwoven fabric 3 having the plastic film 1 having excellent airtightness on the outer surface thereof. , The tube lining material 13 means a finished product in which the thermosetting resin 5 has been absorbed and impregnated.

1 is a side view showing an impregnation process system of a tube lining material according to a preferred embodiment of the present invention, Figure 2 is a perspective view showing the main part of Figure 1, Figure 3 is an enlarged sealer and pressure roller of Figure 2 4 is a side view illustrating a process for loading a tube lining material according to a preferred embodiment of the present invention, FIG. 5 is a perspective view showing a slider of FIG. 4, and FIGS. 6 to 9 are views of the present invention. It is a side view which shows schematically the procedure of impregnation of the tube lining material which concerns on a preferable embodiment.

1 and 2, the impregnation system of the tube lining material according to the present embodiment is a vacuum source for vacuuming the inside of the tube 160, the conveyor 160, the tube lining bag 12 is loaded largely (80), the pusher roller 110 is installed on the conveyor 160, the nip roller 170 for adjusting the plate thickness of the tube lining material, the slider for sliding the thickness of the pipe lining material 13 is completed (loading) ( 210).

The conveyor 160 is comprised with the horizontal part 166 and the inclination part 168 arrange | positioned inclined upwards from the left end of this horizontal part 166. As shown in FIG.

The horizontal portion 166 is preferably composed of the transfer horizontal portion 165 and the impregnation horizontal portion 163 to be impregnated.

In addition, it is preferable that the loading horizontal portion 161 on which the tube lining bag 12 stacked and stacked is disposed at the right end of the transfer horizontal portion 165.

The loading horizontal portion 161 is rotatably installed in the horizontal frame a plurality of idle rolls along the left and right longitudinal direction.

Each of the impregnation horizontal portion 163 and the transfer horizontal portion 165 is composed of a plurality of idle rolls which are rotatably installed in the horizontal frame in the horizontal direction like the loading horizontal portion 161, and are driven at both ends of the horizontal frame. The roll is rotatably provided, and the conveyor belts 163a and 165a conveyed by this drive roll are hung.

Like the horizontal portion 166, the inclined portion 168 is composed of a plurality of idle rolls rotatably installed along the left and right inclined length directions on the inclined frame, and the driving rolls are rotatably installed on both left and right ends of the inclined frame. The conveyor belt 168a conveyed by the drive roll is hung.

The inclined portion 168 allows the impregnated resin to flow downward by gravity, thereby eliminating the occurrence of trouble due to excessive impregnation in the nip roller 170 so that stable thickness adjustment is performed.

2 and 3, the impregnation horizontal portion 163 is provided with a pressure roller 130 and a seal roller 110.

The pressure roller 130 is a pressure roller 131, a pressure roller support portion 133 for supporting the pressure roller 131 at both ends so as to rotate the idle, and a lifting unit 135 for elevating the pressure roller 131. It is composed.

The pressure roller 131 presses the tube lining bag 12 to pressurize the curable resin 5, which will be described later, to initially form the expanded portion 64a, so that the injection time can be performed quickly.

In addition, since it is relatively smaller than the diameter of the sealing roller 111 described later, even if pressed with a large force does not damage the tube lining bag 12, the sealing effect is very good.

The relatively small diameter is because the pusher roller 111 must be equal to or larger than the height of the expansion portion 64a, and the press roller 131 simply presses.

The pressure roller support part 133 is comprised by the bearing part 133 which supports both ends of the pressure roller 131 rotatably.

Lifting unit 135 is fixed to the frame fixed female screw portion 137 formed on the lifting guide bracket 139 for guiding the bearing portion 133 up and down, and the lower end fixed to the bearing portion 133 fixed female screw Consists of a transfer screw rod 136 fastened to the portion 137.

The handle 138 is preferably installed on the upper end of the transfer screw rod 136.

The sealing roller part 110 is comprised by the sealing roller 111 and the moving part 113 which moves this sealing roller 111. As shown in FIG.

The moving part 113 includes a pair of support brackets 114 rotatably supporting front and rear ends of the pusher roller 111, and a power transmission moving part 115 for transmitting power to the support brackets 114 and moving them. ).

The support bracket 114 is provided with wheels 114a, and the wheels 114a are provided on rails 164 provided along the longitudinal direction on both front and rear sides of the frame of the impregnation horizontal portion 163.

The power transmission moving unit 115 includes a moving drive motor (not shown), a moving drive shaft 116 receiving the rotational power of the moving drive motor (not shown), and a drive coupled to the moving drive shaft 116. The sprocket 117 and the chain 118 fixed to the left and right ends of the rail 164 and hung on the drive sprocket 117 are comprised.

In addition, it is preferable that an idle sprocket is disposed around the driving sprocket 117 for the stable bite of the chain 118.

Therefore, when power is applied to the moving drive motor (not shown), the rotational force of the moving drive motor (not shown) is transmitted to the drive shaft 116 through the means of a gear, a chain or a timing belt. The driving rotational force of the driving drive shaft 116 rotates the driving sprocket 117 to move along the chain 118.

On the other hand, the sealing roller 111 is provided on the support bracket 114 to be elevated.

That is, the lower end of the pusher roller 111 is fixed to the worm screw rod 123, the worm screw rod 123 is engaged with the worm wheel (not shown) in the form of a screw thread, the worm wheel (not shown) drive motor 125 It is connected to the elevating drive shaft 121 receives the rotational force.

Therefore, as the drive shaft 121 for lifting and lowering rotates in accordance with the forward and reverse rotation of the driving motor 125, the worm wheel (not shown) moves up and down by the up-and-down movement of the worm screw rod 123.

The raising and lowering of the up-and-down roller 111 is significantly smaller than that of the pressure roller 131, and is finely adjusted according to the amount of the curable resin 5 and the full length of the tube lining bag 12.

On the other hand, the nip roller 170 is arrange | positioned at the end of the inclination part 168 to the left and right.

That is, the nip roller 170 finally adjusts the plate thickness of the tube lining material 13 impregnated with the upper and lower rollers, and is sequentially disposed by the primary nip roller 171 and the secondary nip roller 173. It is desirable to make precise adjustments.

In addition, it is preferable that the pressing roller 180 is further installed on the inclined portion 168 before passing through the nip roller 170.

The pressing roller 180 blocks the chewing phenomenon due to the excess impregnation resin in the tube lining material passing through the nip roller 170 to provide the nip roller 170 with a flattened state.

The configuration of the pressing roller 180 is the same as the pressure roller 130 described above.

The tube lining material 13 passing through the nip roller 170 is stacked while being stacked by the stacking device 200.

That is, as shown in FIG. 5, the loading apparatus 200 is comprised by the slider 210 arrange | positioned between the front-back frame 201, and the moving part 230 which moves this slider 210. As shown in FIG.

The slider 210 is comprised from the support bar 211 arrange | positioned before and after, and the idle roll 213 rotatably arrange | positioned between this support bar 211. As shown in FIG.

The left end of the support bar 211 of the slider 210 is supported by the supporting rolls 215 and 217 fixed to the frame 201.

The moving unit 230 includes a rack 231 formed on the upper surface of the frame 230, a pinion 233 engaged with the rack 231, a drive shaft 235 on which pinions 233 are installed at both ends thereof, It consists of a drive motor 237 for transmitting power to the drive shaft 235.

The drive motor 237 is mounted to the support bar 211, and the drive shaft 235 is supported to the bearing 236 mounted to the support bar 211.

The drive sprocket 238a of the drive motor 237 transfers power to the driven sprocket 238b of the drive shaft 235 through the chain 238c.

Therefore, the slider 210 is supported by the support rolls 215 and 217 and the rack 231, so that the slider 210 slides left and right along the longitudinal direction in response to the forward and reverse rotation of the driving motor 237. The lamination and lamination of the tube lining material 13 can be performed automatically.

Due to such automatic loading, as shown in FIG. 4, the slider 210 reciprocates and slides inside the transport vehicle, thereby immediately loading.

The support bar 211 of the slider 210 may implement stable sliding by inserting the wheels 114a described above into the I frame 201.

On the other hand, it is preferable that the conveyance inclination part 250 which inclines downward so that the pipe lining material 13 may be obliquely conveyed at the left end of the slider 210 may be provided.

This is because a large amount of the tube lining material is placed on the slider when it supports and pushes the bottom of the tube lining material 13 conveyed vertically as in the prior art, a large force is required to slide the slider 210, so that the large driving motor 237 can be moved. in need.

On the other hand, when conveyed at an angle as in the present embodiment, only a part of the slider 210 is not placed on the entire upper surface of the slider 210, so that relatively little force is applied.

This conveying inclination part 250 is sufficient if it is implemented that a plurality of idle rolls are installed in the frame like the loading horizontal part 161.

Hereinafter, the operation of the present embodiment having the above-described configuration will be described with reference to the drawings of FIGS. 6 to 9.

First, a tube lining bag 12 having a predetermined full length is prepared. Of course, the tube lining bag 12 is stacked and stacked as shown in FIG.

A part of this tube lining bag 12 is unfolded and placed on the horizontal portion 166 and the inclined portion 168. At this time, the front end and the last end of the tube lining bag 12 are sealed with a tape.

The tube lining bag 12 unfolded as shown in FIG. 6 has a window for vacuum suction on the upper and lower sides of the resin injection window, and the vacuum cups 82 and 82 'are attached to the window, and then the round pump 80 is attached. It vacuums the inside through.

In this vacuum state, the curable resin 5 is injected through the resin injection window while being pressed by the pressing roller 130 as shown in FIG. 7.

This injected resin is filled to the point where the pressing roller 130 is pressed, and the initial expansion part 64a is formed.

When the resin injection is completed, the resin injection window is blocked, and the vacuum cup 82 'is operated again to vacuum and then removed. Of course, the rear vacuum cup 82 continues to operate until all work is completed. Usually, the vacuum cup 82 is attached every 10 m to ensure the vacuum.

After the vacuum cup 82 ′ is removed, the pressing roller 130 is raised as shown in FIG. 8, and then retracted by the pusher roller 110 until the predetermined expansion portion 64a is raised. The height of the expansion portion 64a is determined according to the temperature and the size of the tube inner diameter.

At the point where the predetermined expansion portion 64a is formed, the conveyor belt transfers the tube lining material in the direction of the arrow as shown in FIG. 9.

The control switch is operated to move the pusher roller 110 to the left in accordance with the speed of the conveyed belt.

Then, since the pusher roller 110 maintains the height of the expanded portion 64a, the nonwoven fabric 3 is pressed by the curable resin 5 filled therein and the inclined portion 168 in the state sufficiently impregnated to the film 1. Got up to).

The pressure roller 130 serves to pressurize the expansion part again by placing the pressure roller 130 at the height of the expansion part 64a.

After passing through the pressing roller 180 and the nip roller 170, the pipe lining material 13 which rises to the inclination part 168 is conveyed to the loading apparatus 200 through the conveyance inclination part 250.

The pipe lining material 13 which descends on the inclination part 250 for conveyances is loaded while the slider 210 pushes to the left side by the fixed length toward the left side, and pulls to the right again.

At this time, the refrigeration vehicle is waiting on the side of the loading device 200, the slider 210 can be reciprocated sliding in the stacking box to directly stack.

As described above, although described with reference to a preferred embodiment of the present invention, it can be carried out by variously changing or modifying the present invention without departing from the spirit and scope of the present invention described in the claims below. Will be apparent to those skilled in the art.

The present invention can be applied to any of the process of impregnation of the tube lining material and the system thereof.

1 is a side view showing an impregnation process system of a tube lining material according to a preferred embodiment of the present invention.

Figure 2 is a perspective view of the main part of Figure 1;

3 is an enlarged perspective view of the seal roller and the pressure roller of FIG.

Figure 4 is a side view showing a loading process system of the tube lining material according to a preferred embodiment of the present invention.

5 is a perspective view of the slider of FIG.

6 to 9 is a side view schematically showing the order of the impregnation process of the tube lining material according to a preferred embodiment of the present invention.

11 and 12 are side views schematically showing a process sequence of impregnation of the conventional tube lining material.

FIG. 13 is a cross-sectional view illustrating a vacuum process of the tube lining bag of FIGS. 11 and 12.

<Explanation of symbols for the main parts of the drawings>

1: (plastic) film 3: tubular nonwoven fabric

5: (thermal) curable resin 7: impregnated nonwoven fabric

12: tube lining bag 13: tube lining material

80: vacuum source (vacuum pump) 82: vacuum cup

110: seal roller 111: seal roller

113: moving part 114: support bracket

114a: wheel 115: power transmission unit

116: drive shaft for movement 117: drive sprocket

118: chain 121: drive shaft for lifting

123: worm screw rod 125: drive motor for lifting

130: pressure roller 131: pressure roller

133: pressure roller support portion 135: lifting portion

136: feed screw rod 137: fixed female thread

138: handle 139: lifting guide bracket

160: conveyor 161: loading horizontal portion

163: impregnation horizontal unit 165: guide horizontal unit

166: horizontal portion 168: inclined portion

170: nip roller 171: primary nip roller

173: secondary nip roller 180: compression roller

200: loading device 201: frame

210: slider 211: support bar

213: idle roll 230: moving part

231: rack 233: pinion

235: drive shaft 237: drive motor

250: inclined portion for transport

Claims (2)

Loading a tubing lining bag having a predetermined length consisting of a tubular nonwoven fabric having a film attached to an outer surface thereof on a conveyor including a horizontal portion and an inclined portion; Forming a window for vacuum suction on the inclined side tube lining bag and the horizontal side side tube lining bag; Vacuuming the inside of the tube lining bag through the window for vacuum suction; Pressing the tube lining bag on the horizontal side of the tube lining bag in the vacuum state; Forming a window for injecting curable resin into the inclined side tube lining bag; Injecting the curable resin through the resin injection window to expand the tube lining bag to form an inflation portion as it is filled to the pressure side; Closing the window for resin injection after the curable resin is injected; Releasing the pressurized state of the tube lining bag; Manufacturing the tube lining material by sequentially impregnating the curable resin while moving the tube lining bag and moving the sealer roller relative to the conveyor to maintain the state of the inflation portion; Conveying while adjusting the thickness of the tube lining material; A method of manufacturing a tube lining material comprising the step of stacking the conveyed pipe lining material reciprocating along its longitudinal direction. The method of claim 1, And pressing the tube lining material before adjusting the thickness of the tube lining material.

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