JP2020100098A - Belt-like member manufacturing apparatus and manufacturing method - Google Patents

Abstract

To attach certainly an additional long-sized material such as sealing material and reinforcing material to a main belt material when manufacturing a belt-like member.SOLUTION: A main belt material 11 of a belt-like member 10 is transported along a transport path 2a of a transport mechanism 2. A long-sized material such as a sealing material 19 is sent out from a delivery mechanism 3. The long-sized member 19 is temporarily fitted to a mounting seat 13a' by temporary fitting means 41 of a fitting mechanism 4 on a transport path 2a. After that, the long-sized member 19 is fitted further deeply into the mounting seat 13a' by downstream main fitting means 42.SELECTED DRAWING: Figure 1

Description

The present invention relates to an apparatus and a method for manufacturing a strip-shaped member that serves as a spiral tubular rehabilitation pipe along the inner circumference of a buried pipe, and particularly to a long seal material, a reinforcing material, or the like for a mounting seat of a main strip material in the strip-shaped member. The present invention relates to an assembly line for attaching long materials.

It is publicly known that the buried pipe is rehabilitated by lining a spiral tubular rehabilitation pipe on the inner peripheral surface of the aged sewer pipe or the like (see Patent Documents 1 to 3). The rehabilitation pipe is composed of a long strip-shaped member. The strip-shaped member is spirally wound around the inner peripheral surface of the buried pipe, and the opposite side edges are joined together. A concave groove or a convex strip for joining is formed on the side edge portion. A long sealing material is housed in the groove (see Patent Documents 1 and 2). The groove serves as a mounting seat for the sealing material. When the ridge is fitted in the groove, the sealing material is compressed and the watertightness of the joint is secured.
Further, there is also known a belt-shaped member in which a long reinforcing material made of steel is attached to a main belt material made of synthetic resin (see Patent Documents 1, 3 and the like).

When manufacturing the belt-shaped member, the main belt material is extrusion-molded and temporarily wound around the primary winding drum. The main strip is fed from the primary winding drum and sent to a fitting mechanism such as a fitting roll. At the same time, a long material such as a sealing material is fed from another drum or reel and sent to the fitting mechanism. The strip-shaped member is obtained by fitting the long material into the mounting seat such as the concave groove of the main strip by the fitting mechanism. The strip-shaped member is wound on a secondary winding drum.

JP, 2008-161859, A JP, 2017-074683, A JP, 2018-144484, A

When assembling this kind of belt-shaped member, it is necessary to elastically deform the sealing material and the reinforcing material and attach it to the mounting seat of the main belt material. For example, in the case of a sealing material, the recessed groove that serves as the mounting seat is narrow. Difficult to fit because there is. Increasing the diameter of the seal material to improve watertightness makes it more difficult to fit. Therefore, the sealing material easily floats from the concave groove due to poor fitting.
Such poor fitting due to the difficulty of fitting can occur even when the reinforcing material is attached to the main strip.
In view of such circumstances, it is an object of the present invention to reliably attach an attached long material such as a seal material or a reinforcing material to a main strip material when manufacturing the strip member.

In order to solve the above-mentioned problems, the present invention is a strip-shaped member manufacturing apparatus for attaching an elongated member attached to a mounting seat of a main strip in a strip-shaped member that serves as a spiral tubular rehabilitation pipe along an inner circumference of a buried pipe,
A transport mechanism that transports the main strip along a transport path,
A fitting mechanism arranged on the transport path,
A delivery mechanism for delivering the long material to the fitting mechanism,
The fitting mechanism is provided on the downstream side of the transport path from the temporary fitting means for temporarily fitting the long material to the mounting seat. The main fitting means for fitting the fitting seat deeper than the temporary fitting means is included.

According to the strip-shaped member manufacturing apparatus, the main strip fed from the primary winding drum or the like at the upstream end of the transport mechanism is transported along the transport path. At the same time, the attached long materials such as sealing material and reinforcing material are sent out from the sending mechanism.
Then, the long material is attached to the attachment seat of the main strip by the fitting mechanism on the transport path. At this time, first, the long member is temporarily fitted to the mounting seat by the temporary fitting means. Temporary fitting means that even after the long material has passed through the temporary fitting means, it is temporarily fixed to the extent that it does not come off from the mounting seat unless an external force is applied to it, and it has not yet reached the regular mounting position. Say the state. Since the temporary fitting is not required, a large force is not required, and the positioning accuracy between the long member and the mounting seat can be increased accordingly.
Subsequently, the long fitting can be fitted into the mounting seat deeper than the temporary fitting means by the main fitting means, and the long material can be arranged at the regular fitting position. As a result, defective fitting of the long material can be prevented, and the long material can be prevented from floating from the mounting seat. Even if the receiving port of the mounting seat is narrow, the long material can be securely mounted on the mounting seat.
The main fitting means may be provided in a plurality of stages at a plurality of locations separated from each other along the transport path downstream of the temporary fitting means.

Each of the temporary fitting means and the main fitting means includes a fitting roller, and the fitting roller of the temporary fitting means has a direction in which the fitting roller is fitted into the mounting seat more than the fitting roller of the main fitting means. It is preferable to be arranged so as to be retracted to the opposite side.
Thereby, the long material can be temporarily and shallowly fitted to the mounting seat in the temporary fitting means, and then the long material can be deeply and firmly fitted to the mounting seat in the main fitting means.

It is preferable that the outer peripheral portion of the fitting roller of the temporary fitting means is thinner than the outer peripheral portion of the fitting roller of the main fitting means.
This makes it easy to position the long member on the mounting seat.

The conveyance mechanism includes a pair of regulation guides for regulating the position of the main strip in the width direction of the conveyance path, and the regulation guides are arranged apart from each other in the flow direction and the width direction of the conveyance path. ,
The temporary fitting means is preferably arranged between the pair of regulation guides in the flow direction.
As a result, the position of the main strip can be regulated so that the main strip does not move in the width direction of the transport path by using the smallest possible number (two) of the regulation guides. The positioning accuracy of the long material can be improved by temporarily fitting the long material to the mounting seat within the position-regulated range.

An accumulator mechanism is provided between the delivery mechanism and the fitting mechanism, in which the long material from the delivery mechanism is temporarily retained and pulled out to the fitting mechanism,
The normal mode in which the delivery speed of the long material from the delivery mechanism is lower than the withdrawal speed from the accumulation mechanism and the retention mode in which the delivery speed is higher than the withdrawal speed include the long material in the accumulation mechanism. It is preferable to carry out iteratively and alternately according to the residence length of
By interposing the accumulation mechanism, the tension acting on the long material can be reduced. When the long material is the sealing material, it is possible to prevent the sealing material from being stretched and having its diameter reduced. Therefore, when the pipe is manufactured, the sealing material can be sufficiently compressed, and the watertight performance can be surely exhibited.
In the normal mode, the retention length of the long material in the accumulation mechanism becomes shorter. Preferably, the normal mode is switched to the retention mode when the retention length becomes shorter to some extent. This increases the residence length. When returning to the desired retention length, the retention mode is switched to the normal mode.

The accumulation mechanism includes a moving pulley around which the long member is wound,
When the height of the movable pulley in the normal mode exceeds the upper limit height of a predetermined lifting range, the mode is switched to the retention mode,
It is preferable that when the height of the movable pulley is lower than the lower limit height of the ascending/descending range in the stay mode, the mode is switched to the normal mode.
By using the movable pulley, the tension acting on the long material can be reliably reduced.
In the normal mode, the movable pulley moves up due to the shorter retention length of the long material. In the retention mode, the movable pulley is lowered by increasing the retention length of the long material. By detecting the height of the movable pulley, it is possible to switch modes according to the stay length.

The method of the present invention is a strip-shaped member manufacturing method for attaching an attached long member to a mounting seat of a main strip member in a strip-shaped member to be a spiral tubular rehabilitation pipe along an inner circumference of a buried pipe,
A step of transporting the main strip along the transport path, with the length direction of the main strip being directed to the flow direction of the transport path,
Sending the long material to a fitting mechanism on the transport path,
A step of temporarily fitting the long member to the mounting seat by a temporary fitting means of the fitting mechanism;
A step of fitting the long member into the mounting seat deeper than the temporary fitting means by the main fitting means arranged on the downstream side of the transport path from the temporary fitting means in the fitting mechanism;
It is characterized by having.

According to the present invention, an attached long member such as a seal member or a reinforcing member for a belt-shaped member can be reliably attached to the main belt member.

FIG. 1 is a front view of a belt-shaped member manufacturing apparatus according to an embodiment of the present invention. FIG. 2 is a plan view taken along the line II-II of FIG. FIG. 3 is a sectional view taken along the line III-III in FIG. FIG. 4A is a sectional view taken along the line IVa-IVa in FIG. FIG. 4B is a sectional view taken along the line IVb-IVb in FIG. 1. FIG. 4C is a sectional view taken along the line IVc-IVc in FIG. FIG. 5A is a cross-sectional view of the strip-shaped member taken along the line Va-Va in FIG. FIG.5(b) is a perspective view of a part of said strip|belt-shaped member. FIG. 6 is a front view showing the accumulation mechanism of the belt-shaped member manufacturing apparatus in a state where the moving pulley is raised. FIG. 7 is a cross-sectional view of an existing buried pipe composed of a rehabilitation pipe made of the strip-shaped member. FIG. 8 is a perspective view of the rehabilitation pipe. FIG. 9 is a cross-sectional view of the rehabilitating pipe in a circle portion VIII of FIG. FIG. 10 is an enlarged cross-sectional view of the circle portion IX of FIG.

An embodiment of the present invention will be described below with reference to the drawings.
As shown in FIG. 7, the strip-shaped member 10 of the present embodiment is applied to, for example, the rehabilitation of an existing aging buried pipe 8. The buried pipe 8 includes a sewer pipe, but is not limited to this, and may be an agricultural water pipe, a water pipe, a gas pipe, a hydroelectric power transmission pipe, or the like. The buried pipe 8 is rehabilitated by lining the rehabilitation pipe 9 on the inner circumference of the buried pipe 8.

As shown in FIG. 8, the rehabilitation pipe 9 is a spiral pipe made of a strip-shaped member 10. The strip-shaped member 10 is spirally wound along the inner peripheral surface of the buried pipe 8, and the side edges of the strip-shaped member 10 that are opposite to each other are joined by concavo-convex fitting (Fig. 9 and FIG. 10).

FIG. 5 shows an example of the belt-shaped member 10. The strip member 10 includes a main strip material 11, a reinforcing material 18, and a sealing material 19. The main strip 11 is made of synthetic resin such as polyvinyl chloride. The strip material 11 has a flat flat strip portion 12, a first fitting portion 13, a second fitting portion 14, and a rib 15, and is formed in a constant cross-sectional shape, as shown in FIG. It extends in the lengthwise direction of the paper, which is orthogonal to the paper surface.
A rib 15 having a T-shaped cross section is provided on the outer peripheral side surface of the flat strip 12 (the surface facing the outer periphery when the rehabilitation pipe 9 is formed).

As shown in FIG. 5, a first fitting portion 13 is provided at one end portion of the flat belt portion 12 in the width direction, and a second fitting portion 14 is provided at the other end portion. Each of these fitting portions 13 and 14 has a plurality of recessed grooves 13a and 14a and protrusions 13b and 14b, respectively, and is formed in an uneven cross-sectional shape complementary to each other.

As shown in FIG. 10, in the rehabilitation pipe 9, the corresponding protrusions 14 b of the second fitting portion 14 are fitted into the respective concave grooves 13 a of the first fitting portion 13, and the first fitting portion 13 Each ridge 13b is fitted in the corresponding groove 14a of the second fitting portion 14.
The width of the concave grooves 13a and 14a is, for example, about several mm (2 mm to 3 mm).

As shown in FIG. 5, a strip-shaped reinforcing member 18 (attached elongated body) is provided on an outer peripheral side portion (a portion facing the outer periphery when the rehabilitation pipe 9 is formed) of the main strip 11. The reinforcing member 18 has a top plate portion 18a, a pair of side plate portions 18b, and a pair of arm plate portions 18c, is formed in a substantially M-shaped cross section, and is in the same direction as the main strip material 11 (see FIG. It extends in a direction orthogonal to the paper surface of a). The material of the reinforcing material 18 is a metal such as steel. The side plate portion 18b approaches or abuts the rib 15, and the arm plate portion 18c having an L-shaped cross section is pressed against the flat belt portion 12, and the tip end portion of the arm plate portion 18c locks the fitting portions 13 and 14. It is locked to the portions 13c and 14c. The rib 15, the flat belt portion 12, and the locking portions 13c and 14c constitute a mounting seat 17 for mounting the reinforcing material 18 to the main belt material 11.

As shown in FIG. 5, the sealing material 19 (attached elongated body) is housed in, for example, the groove 14 a ′ on the outer side in the width direction of the second fitting portion 14. The groove 14 a ′ on the outer side in the width direction constitutes a mounting seat for mounting the sealing material 19 on the main strip 11.
The sealing material 19 may be housed not only in the concave groove 14a′ but also in the other concave grooves 13a and 14a.
The sealing material 19 is made of, for example, a rubber or elastomer having a high elasticity such as ethylene/propylene/diene rubber (EPDM). The inner layer of the sealing material 19 may be made of foam such as foamed EPDM, and the outer surface thereof may be covered with a non-foamed skin layer.

The sealing material 19 extends in a long string shape along the extending direction of the groove 14a' (the direction orthogonal to the paper surface of FIG. 5A).
As shown in FIG. 4A, the cross-sectional shape of the seal member 19 in the unloaded state (the state in which it is not compressed at all) is circular. In addition, the diameter of the seal member 19 in the unloaded state is 1.5 to 3 times the width of the concave groove 14a', and is, for example, about 5 mm. The cross-sectional area of the unloaded seal member 19 is larger than the cross-sectional area of the groove 14a'.
As shown in FIG. 5, the sealing material 19 in the concave groove 14a' is compressed and deformed according to the sectional shape of the concave groove 14a'.

As shown in FIG. 10, in the rehabilitating pipe 9, the corresponding ridge 13b′ is inserted into the groove 14a′, so that the sealing material 19 is further compressed and deformed, and the inner peripheral surface of the groove 14a′ and the ridge 13b. It is strongly pressed against the outer peripheral surface of the'. As a result, the watertightness of the joint between the fitting portions 13 and 14 is ensured.

FIG. 1 shows an assembly line of the main strip material 11 and the seal material 19 in the manufacturing apparatus 1 for the strip-shaped member 10. The belt-shaped member manufacturing apparatus 1 includes a transport mechanism 2, a delivery mechanism 3, and a fitting mechanism 4.

The transport mechanism 2 includes, for example, a roller conveyor 20, winding drums 21 and 22, and regulation guides 23 and 24. A belt conveyor or the like may be used instead of the roller conveyor 20. A transport path 2a is formed along the conveyor 20. The primary winding drum 21 is provided at the upstream end of the transport path 2a, and the secondary winding drum 22 is provided at the downstream end of the transport path 2a. The main strip 11 is wound around the primary winding drum 21. The main strip material 11 unwound from the primary winding drum 21 is conveyed along the conveying path 2 a and is wound around the secondary winding drum 22. The main strip 11 in the transport path 2a has the outer peripheral side facing upward, the strip length direction in the flow direction of the transport path 2a (left and right direction in FIG. 1), and the strip width direction in the width direction of the transport path 2a ( They are arranged in the direction perpendicular to the paper surface of FIG. 1).

As shown in FIGS. 1 to 3, a pair of regulation guides 23 and 24 are provided on the transport path 2a. The regulation guides 23 and 24 are constituted by disc-shaped rotation rollers supported by horizontal rotation shafts 25 and 26, respectively, but the regulation guides 23 and 24 are not limited to this and may be block-shaped. The regulation guides 23 and 24 are arranged apart from each other in the flow direction of the transport path 2a (left-right direction in FIG. 2) and also in the width direction of the transport path 2a (vertical direction in FIG. 2).

As shown in FIGS. 2 and 3, the restriction guide 23 on the upstream side (left side in FIG. 2) in the flow direction of the transport path 2 a is provided between the first fitting portion 13 of the main belt portion 11 and the rib 15 adjacent thereto. It is rotatably fitted in the outer peripheral groove portion 16a.
The restriction guide 24 on the downstream side (the right side in FIG. 2) in the flow direction of the transport path 2a is rotatably fitted in the outer peripheral groove portion 16b between the second fitting portion 14 of the main belt portion 11 and the rib 15 adjacent thereto. It is crowded.
The position of the main strip 11 is regulated in the width direction of the transport path 2a by the regulation guides 23 and 24.

As shown in FIG. 1, the delivery mechanism 3 includes a delivery reel 30. The sealing material 19 is delivered from the delivery reel 30. The feeding reel 30 may be rotated by the tension of the fed sealing material 19. The delivery mechanism 3 may have a control unit that adjusts the rotation ON/OFF or the rotation speed of the delivery reel 30.

As shown in FIGS. 1 and 2, the fitting mechanism 4 is arranged on the transport path 2a. The fitting mechanism 4 includes a temporary fitting roller 41 (temporary fitting means) and a final fitting roller 42 (final fitting means). As shown in FIGS. 2 and 3, these fitting rollers 41, 42 are disc-shaped and supported by horizontal rotating shafts 43, 44, respectively, and have concave grooves 14a' in the main strip 11 on the transport path 2a. It is arranged so as to face with. Moreover, the temporary fitting roller 41 is arranged between the pair of regulation guides 23 and 24 in the flow direction of the transport path 2a. The main fitting roller 42 is arranged on the downstream side (the right side in FIG. 2) of the transport path 2a with respect to the downstream regulation guide 24, and by extension, on the downstream side of the transport path 2a with respect to the temporary fitting roller 41. There is.

Further, as shown in FIG. 1, the temporary fitting roller 41 is retracted to the side (upper side in FIG. 1) opposite to the direction in which the temporary fitting roller 42 is fitted into the concave groove 14 a ′. Specifically, as shown in FIGS. 4B and 4C, the lower end portion of the temporary fitting roller 41 is arranged above the lower end portion of the main fitting roller 42. As shown in FIG. 4B, the temporary fitting roller 41 is shallowly inserted into the concave groove 14a'. As shown in FIG. 4C, the lower end portion of the final fitting roller 42 is deeply inserted into the concave groove 14a'.

The thickness of at least the outer peripheral portion of these fitting rollers 41, 42 is smaller than the width of the narrowest portion of the concave groove 14a'.
In addition, the outer peripheral portion of the temporary fitting roller 41 is thinner than the outer peripheral portion of the main fitting roller 42. The thickness of the outer peripheral portion of the temporary fitting roller 41 is so thin that the sealing material 19 is not cut, for example, 1 mm or less. The thickness of the outer peripheral portion of the main fitting roller 42 is, for example, about 1 mm to 2 mm.

As shown in FIGS. 1 and 6, an accumulation mechanism 5 is provided between the delivery mechanism 3 and the fitting mechanism 4. The accumulation mechanism 5 includes a frame 50, constant pulleys 51 and 52, and a movable pulley 53. The fixed pulleys 51 and 52 are rotatably supported by the frame 50 apart from each other. A moving pulley 53 is provided between the fixed pulleys 51 and 52 so as to be movable up and down.
The frame 50 is provided with a position sensor 54 that detects the height (position) of the moving pulley 53.

The sealing material 19 from the delivery reel 30 is wound around the constant pulley 51, the moving pulley 53, and the constant pulley 52 in this order. The sealing material 19 is temporarily retained by the length passing through the pulleys 51, 53, 52.

Although illustration is omitted, for example, a fitting mechanism for the reinforcing material 18 may be provided in the transport path 2a between the fitting mechanism 4 and the secondary winding drum 22. Also in the reinforcing material fitting mechanism, temporary fitting means such as a temporary fitting roller for temporarily fitting the reinforcing material 18 to the mounting seat 17, and then fitting the reinforcing material 18 to the regular mounting position of the mounting seat 17. A provisional fitting means such as a permanent fitting roller may be included. An accumulator mechanism similar to the accumulator mechanism 5 may be provided on the path through which the reinforcement material 18 is supplied to the reinforcement material fitting mechanism.

The strip-shaped member 10 is manufactured as follows.
The main strip 11 is extruded by an extrusion molding machine (not shown) and wound on the primary winding drum 21. The primary winding drum 21 is installed at the upstream end of the transport mechanism 2.
<Conveying process>
Then, the main strip 11 is unwound from the primary winding drum 21 and is transported along the transport path 2a.

<Sending process>
In parallel, the sealing material 19 is sent out from the delivery reel 30 of the delivery mechanism 3. The sealing material 19 is introduced through the pulleys 51, 53, 52 of the accumulation mechanism 5 between the concave groove 14a′ of the main strip 11 on the transport path 2a and the temporary fitting roller 41.
<Temporary mating process>
As a result, as shown in FIG. 4B, the sealing material 19 is inserted into the concave groove 14 a ′ by the temporary fitting roller 41 and temporarily fitted. At this stage, the sealing material 19 may be shallowly fitted into the groove 14a', and it is not necessary to insert the sealing material 19 to the bottom of the groove 14a'. Therefore, it is possible to increase the positioning accuracy of the sealing material 19 and the concave groove 14a′ by that much without requiring a large force. For example, the temporary fitting roller 41 can be made thin because a large load bearing strength is not required. The thin provisional fitting roller 41 bites into the sealing material 19 so that the sealing material 19 can be easily guided to an accurate position.
Moreover, since the temporary fitting roller 41 is disposed between the pair of regulation guides 23, 24 in the flow direction of the transport path 2a, the main strip 11 between the pair of regulation guides 23, 24 is regulated by the regulation guide 23. , 24 to regulate the position so as not to shake in the width direction of the transport path 2a, and then the sealing material 19 can be temporarily fitted into the recessed groove 14a′ of the position regulated portion. Therefore, the positioning accuracy of the sealing material 19 at the time of temporary fitting can be further improved.
By arranging the regulation guides 23 and 24 so as to be offset from each other in the flow direction and the width direction of the transport path 2a, the deviation of the main strip 11 can be effectively regulated by the smallest number of regulation guides.

<Main mating process>
Subsequently, as shown in FIG. 4C, the seal member 19 is pushed deeper into the groove 14 a ′ than the temporary fitting roller 41 by the main fitting roller 42. As a result, the sealing material 19 can be firmly fitted into the groove 14a'.
The sealing material 19 is preliminarily fitted into the concave groove 14a′ by the temporary fitting roller 41 and then fitted to the regular mounting position by the main fitting roller 42, so that the fitting failure can be prevented. Can be prevented from floating from the groove 14a'. Even if the width of the groove 14a' is narrow, the sealing material 19 can be reliably attached to the groove 14a'.

The fitted sealing material 19 is conveyed integrally with the main strip material 11 toward the secondary winding drum 22. Along with this, the sealing material 19 before fitting is pulled toward the fitting mechanism 4. As a result, the sealing material 19 is pulled out from the accumulation mechanism 5.

As shown in FIGS. 1 and 6, the delivery mechanism 3 and the accumulation mechanism 5 interlock with each other to execute the normal mode and the retention mode in accordance with the retention length of the sealing material 19 in the accumulation mechanism 5.
<Normal mode>
In the normal mode, the delivery speed of the seal material 19 from the delivery mechanism 3 is lower than the withdrawal speed of the seal material 19 from the accumulation mechanism 5. That is, the rotation speed of the delivery reel 30 is low. The rotation of the delivery reel 30 may be stopped.
As the sealing material 19 is pulled out from the accumulation mechanism 5, the stay length of the sealing material 19 becomes shorter and the moving pulley 53 rises.
By providing the movable pulley 53 in the path of the seal material 19, the tension acting on the seal material 19 can be reduced. Therefore, it is possible to prevent the sealing material 19 from being stretched to reduce its diameter, and the sealing material 19 can be brought into close contact with the inner peripheral surface of the concave groove 14a'.

As shown in FIG. 6, in the normal mode, when the retention length of the sealing material 19 is less than a predetermined value and the height of the moving pulley 53 exceeds the upper limit height of a predetermined ascending/descending range, this is detected by the position sensor 54. To detect. When the detection signal is input to the control circuit of the payout reel 30, the stay mode is switched to.

<Stay mode>
In the stay mode, the payout reel 30 is rotated at a higher speed than in the normal mode. Therefore, the delivery speed of the seal material 19 from the delivery mechanism 3 is higher than the withdrawal speed of the seal material 19 from the accumulation mechanism 5. As a result, the sealing material 19 is supplied from the delivery reel 30 to the accumulation mechanism 5 at high speed, the moving pulley 53 descends, and the retention length of the sealing material 19 in the accumulation mechanism 5 increases.

As shown in FIG. 1, when the stay length returns to a desired size and the height of the movable pulley 53 falls below the lower limit height of the ascending/descending range, the stay mode is switched to the normal mode. That is, the rotation speed of the delivery reel 30 is returned to the low speed or zero in the normal mode.
After that, as the main strip 11 is conveyed, the seal material 19 is supplied from the accumulation mechanism 5 to the fitting mechanism 4, so that the retention length is shortened again and the movable pulley 53 rises.
The normal mode and the retention mode described above are alternately repeated.

<Reinforcement material mounting process>
Although detailed illustration is omitted, a reinforcing material 18 is fitted into the main strip material 11 after the sealing material 19 is fitted.
The reinforcing material 18 may also be temporarily retained by the accumulation mechanism. Further, it is preferable that the reinforcing material 18 is temporarily fitted to the mounting seat 17 by the temporary fitting means of the reinforcing material fitting mechanism, and then the reinforcing material 18 is fitted to the regular mounting position by the main fitting means. ..
<Winding process>
In this way, the belt-shaped member 1 is assembled. The belt-shaped member 1 is wound around the secondary winding drum 22.

The completed strip-shaped member 1 is carried into the rehabilitation site of the aged existing buried pipe 8, and the rehabilitating pipe 9 is manufactured along the inner peripheral surface of the buried pipe 8.
Since the sealing material 19 is firmly fitted into the concave groove 13a' of the strip-shaped member 1 without being reduced in diameter by tension, when the pipe is manufactured, the sealing material 19 is reliably and sufficiently formed by the convex strip 13b'. Can be compressed. As a result, the watertight performance of the sealing material 19 can be reliably exhibited, and water leakage from the joint between the fitting portions 13 and 14 can be reliably prevented.

The present invention is not limited to the above embodiment, and various modifications can be made without departing from the spirit of the present invention.
For example, the main strip 11 after the fitting of the sealing material 19 may be once wound around the secondary winding drum 22, and then the main strip 11 may be unwound to fit the reinforcing material 18.
The reinforcing material 18 may be first fitted to the main strip material 11, and then the sealing material 19 may be fitted.
The temporary fitting rollers 41 of the fitting mechanism 4 may be provided in a plurality of stages. The main fitting roller 42 may be provided in a plurality of stages.
The accumulation mechanism 5 may have a plurality of pulley mechanisms including constant pulleys 51 and 52 and a moving pulley 53.
The accumulation mechanism 5 may have a slack holding portion that slackens and holds the long members 18 and 19.
The normal mode and the retention mode may be switched depending on the tension of the long members 18, 19.
The spiral tubular rehabilitation pipe may have a two-strand spiral structure including a main strip-shaped member and a connecting strip-shaped member. For example, ridges (fitting portions) are provided on both sides of the main strip-shaped member in the width direction, and concave grooves (fitting portions) into which the ridges are fitted are provided on both sides of the connecting strip-shaped member in the width direction. The adjacent winding portions of the main belt-shaped member may be connected to each other via the connection belt-shaped member. The belt-shaped member to be manufactured by the manufacturing apparatus and the manufacturing method according to the present invention includes the main belt-shaped member and the connecting belt-shaped member.

INDUSTRIAL APPLICABILITY The present invention can be applied to, for example, a technique for rehabilitating an aged sewer pipe.

DESCRIPTION OF SYMBOLS 1 strip|belt-shaped member production apparatus 2 conveyance mechanism 2a conveyance paths 23 and 24 regulation guide 3 delivery mechanism 30 delivery reel 4 fitting mechanism 41 temporary fitting roller (temporary fitting means)
42-fitting roller (main fitting means)
5 Accumulation mechanism 50 Frames 51, 52 Constant pulley 53 Dynamic pulley 54 Position sensor 8 Buried pipe 9 Rehabilitation pipe 10 Strip member 11 Main strip 13 First fitting portion 14 Second fitting portion 14a' Recessed groove (mounting seat)
17 Mounting seat 18 Reinforcing material (long material)
19 Seal material (long material)

Claims (7)

A strip-shaped member manufacturing apparatus for attaching an attached long material to a mounting seat of a main strip in a strip-shaped member that serves as a spiral tubular rehabilitation pipe along an inner circumference of an embedded pipe,
A transport mechanism that transports the main strip along a transport path,
A fitting mechanism arranged on the transport path,
A delivery mechanism for delivering the long material to the fitting mechanism,
The fitting mechanism is provided on the downstream side of the transport path from the temporary fitting means for temporarily fitting the long material to the mounting seat. An apparatus for manufacturing a belt-shaped member, comprising: a main fitting means for fitting the fitting seat deeper than the temporary fitting means. Each of the temporary fitting means and the main fitting means includes a fitting roller, and the fitting roller of the temporary fitting means has a direction in which the fitting roller is fitted into the mounting seat more than the fitting roller of the main fitting means. The strip-shaped member manufacturing apparatus according to claim 1, wherein the strip-shaped member manufacturing apparatus is arranged so as to be retracted to the opposite side. The strip-shaped member manufacturing apparatus according to claim 2, wherein an outer peripheral portion of the fitting roller of the temporary fitting means is thinner than an outer peripheral portion of the fitting roller of the main fitting means. The conveyance mechanism includes a pair of regulation guides for regulating the position of the main strip in the width direction of the conveyance path, and the regulation guides are arranged apart from each other in the flow direction and the width direction of the conveyance path. ,
The said temporary fitting means is arrange|positioned between the said pair of control guides in the said flow direction, The strip|belt-shaped member manufacturing apparatus in any one of the Claims 1-3 characterized by the above-mentioned. An accumulator mechanism is provided between the delivery mechanism and the fitting mechanism, in which the long material from the delivery mechanism is temporarily retained and pulled out to the fitting mechanism,
The normal mode in which the delivery speed of the long material from the delivery mechanism is lower than the withdrawal speed from the accumulation mechanism and the retention mode in which the delivery speed is higher than the withdrawal speed include the long material in the accumulation mechanism. The belt-shaped member manufacturing apparatus according to any one of claims 1 to 4, wherein the belt-shaped member manufacturing apparatus is repeatedly and alternately executed according to the retention length. The accumulation mechanism includes a moving pulley around which the long member is wound,
When the height of the movable pulley in the normal mode exceeds the upper limit height of a predetermined lifting range, the mode is switched to the retention mode,
The strip-shaped member manufacturing apparatus according to claim 5, wherein when the height of the movable pulley is lower than a lower limit height of the ascending/descending range in the stay mode, the normal mode is switched to. A strip-shaped member manufacturing method for attaching an attached long material to a mounting seat of a main strip in a strip-shaped member that serves as a spiral tubular rehabilitation pipe along an inner circumference of an embedded pipe,
A step of transporting the main strip along the transport path, with the length direction of the main strip being directed to the flow direction of the transport path,
Sending the long material to a fitting mechanism on the transport path,
A step of temporarily fitting the long member to the mounting seat by a temporary fitting means of the fitting mechanism;
A step of fitting the long member into the mounting seat deeper than the temporary fitting means by the main fitting means arranged on the downstream side of the transport path from the temporary fitting means in the fitting mechanism;
A method for manufacturing a belt-shaped member, comprising:

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