JP2022153416A - Belt-like member manufacturing apparatus and method - Google Patents

Abstract

PROBLEM TO BE SOLVED: To surely attach a long attached material such as a seal material and a reinforcement 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 conveyed along a conveyance path 2a of a conveyance mechanism 2. A long material such as a seal material 19 is fed from a feeding mechanism 3. Preferably, the long material 19 is temporarily made to stay by an accumulator mechanism 5, and a normal mode in which feeding speed of the long material 19 is lower than drawing speed from the accumulator mechanism 5 and a staying mode in which the feeding speed is higher than the drawing speed are alternately and repeatedly performed according to a staying length of the long material 19 in the accumulator mechanism 5. Continuously, the long material 19 is temporarily fitted to a fitting seat 13a' by temporal fitting means 41 of a fitting mechanism 4. Preferably, the main belt material 11 is positionally regulated in a width direction of the conveyance path 2a by a pair of regulation guides which are separated from each other in the width direction and are arranged on both sides of the conveyance path 2a while sandwiching the temporal fitting means 41. Then the long material 19 is more deeply fitted to the fitting seat 13a' by final fitting means 42 on the downstream side.

SELECTED DRAWING: Figure 1

COPYRIGHT: (C)2023,JPO&INPIT

Description

TECHNICAL FIELD The present invention relates to an apparatus and a method for manufacturing a belt-shaped member that will be a helical rehabilitation pipe along the inner circumference of an underground pipe, and in particular, a long sealing material, a reinforcing material, etc. It relates to an assembly line for attaching long materials.

It is known to rehabilitate an aged buried pipe such as a sewer pipe by lining the inner peripheral surface of the pipe with a spiral rehabilitation pipe (see Patent Documents 1 to 3, etc.). The rehabilitation pipe is composed of a long belt-like member. The belt-shaped member is spirally wound along the inner peripheral surface of the buried pipe, and the opposing side edges are joined together. The side edges are formed with grooves and ridges for joining. A long sealing material is accommodated in the concave groove (see Patent Documents 1 and 2, etc.). The groove serves as a mounting seat for the sealing material. When the ridge is fitted into the groove, the sealing material is compressed to ensure the watertightness of the joint.
Also known is a band-shaped member in which a steel long reinforcing member is attached to a main band member made of synthetic resin (see Patent Documents 1 and 3, etc.).

When manufacturing the strip member, the main strip member is extruded and once wound around the primary winding drum. A main strip is unwound 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. A belt-shaped member is obtained by fitting the elongated member into a mounting seat such as a groove of the main belt member by means of a fitting mechanism. The belt-like member is wound on a secondary winding drum.

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

When assembling this type of belt-like member, it is necessary to attach the sealing material and reinforcing material to the mounting seat of the main belt material while elastically deforming it. It's hard to fit because of it. Enlarging the diameter of the sealing material to improve watertightness makes it more difficult to fit. For this reason, the sealing material tends to be lifted from the concave groove due to poor fitting.
A fitting failure due to such difficulty of fitting may also occur when the reinforcing material is attached to the main strip.
SUMMARY OF THE INVENTION In view of such circumstances, an object of the present invention is to make it possible to reliably attach accessory elongated members such as sealing materials and reinforcing members to main strip members when manufacturing strip members.

In order to solve the above-mentioned problems, the present invention provides a strip-shaped member manufacturing apparatus for attaching an attached elongated member to a mounting seat of a main strip in a strip-shaped member that becomes a helical rehabilitation pipe along the inner circumference of an underground pipe,
a conveying mechanism for conveying the main strip along a conveying path;
a fitting mechanism arranged on the transport path;
a delivery mechanism for delivering the elongated material to the fitting mechanism;
wherein the fitting mechanism includes temporary fitting means for temporarily fitting the elongated material to the mounting seat; and permanent fitting means for fitting the mounting seat deeper than the temporary fitting means.

According to the strip-shaped member manufacturing apparatus, the main strip drawn out 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, attached elongated materials such as sealing materials and reinforcing materials are delivered from the delivery mechanism.
Then, the elongated member is attached to the mounting seat of the main strip member by a fitting mechanism on the conveying 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 such an extent that it does not come off from the mounting seat unless an external force is applied to remove it, and the regular mounting position has not yet been reached. say the state. Since it is a temporary fitting, a large force is not required, and the positioning accuracy between the long member and the mounting seat can be improved accordingly.
Subsequently, by the permanent fitting means, the elongated member can be fitted into the mounting seat deeper than the temporary fitting means and arranged at the regular mounting position. As a result, it is possible to prevent the fitting failure of the elongated member, and to avoid the elongated member from being lifted from the mounting seat. To surely attach a long member to a mounting seat even if the receiving opening of the mounting seat is narrow.
A plurality of stages of final fitting means may be provided at a plurality of positions apart from the temporary fitting means along the conveying path.

The temporary fitting means and the permanent fitting means each include a fitting roller, and the fitting roller of the temporary fitting means is fitted into the mounting seat more than the fitting roller of the permanent fitting means. It is preferable to be retracted to the opposite side.
As a result, the long member can be temporarily and shallowly fitted to the mounting seat by the temporary fitting means, and then the long member can be deeply and firmly fitted to the mounting seat by 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 permanent fitting means.
This makes it easy to position the elongated member on the mounting seat.

The conveying mechanism includes a pair of regulating guides for regulating the position of the main strip in the width direction of the conveying path, and the regulating guides are arranged apart from each other in the flow direction and the width direction of the conveying path. ,
It is preferable that the temporary fitting means is arranged between the pair of regulation guides in the flow direction.
As a result, the position of the main strip can be regulated so as not to sway in the width direction of the conveying path by using the least possible number (two) of regulating guides. By temporarily fitting the elongated member to the mounting seat within the positionally regulated range, the positioning accuracy of the elongated member can be enhanced.
Preferably, the device of the present invention is a band-shaped member manufacturing device for attaching an attached elongated member to a mounting seat of a main band member in a band-shaped member that becomes a helical rehabilitation pipe along the inner circumference of an underground pipe,
a conveying mechanism for conveying the main strip along a conveying path;
a fitting mechanism arranged on the transport path;
a delivery mechanism for delivering the elongated material to the fitting mechanism;
wherein the fitting mechanism includes temporary fitting means for temporarily fitting the elongated material to the mounting seat; full fitting means for fitting the mounting seat deeper than the temporary fitting means,
The conveying mechanism includes a pair of regulating guides for regulating the position of the main strip in the width direction of the conveying path, and the regulating guides are arranged apart from each other in the flow direction and the width direction of the conveying path. ,
The temporary fitting means is arranged between the pair of regulation guides in the flow direction.

Between the delivery mechanism and the fitting mechanism, an accumulating mechanism is provided for temporarily retaining the elongated material from the delivery mechanism and pulling it out to the fitting mechanism,
A normal mode in which the delivery speed of the long material from the delivery mechanism is lower than the withdrawal speed of the long material from the accumulator mechanism, and a retention mode in which the delivery speed is higher than the withdrawal speed are divided into the long material in the accumulator mechanism. It is preferable to perform iteratively alternately according to the residence length of .
The intervention of the accumulator mechanism can reduce the tension acting on the elongated material. When the elongated material is a sealing material, it is possible to prevent the diameter of the sealing material from being reduced due to stretching. Therefore, when the tube is manufactured, the sealing material can be sufficiently compressed, and the watertight performance can be reliably exhibited.
In the normal mode, the retention length of the long material in the accumulation mechanism becomes shorter. Preferably, when the residence length becomes shorter to some extent, the normal mode is switched to the residence mode. This increases the residence length. When the desired dwell length is reached, switch from dwell mode to normal mode.
Preferably, the device of the present invention is a band-shaped member manufacturing device for attaching an attached elongated member to a mounting seat of a main band member in a band-shaped member that becomes a helical rehabilitation pipe along the inner circumference of an underground pipe,
a conveying mechanism for conveying the main strip along a conveying path;
a fitting mechanism arranged on the transport path;
a delivery mechanism for delivering the elongated material to the fitting mechanism;
wherein the fitting mechanism includes temporary fitting means for temporarily fitting the elongated material to the mounting seat; full fitting means for fitting the mounting seat deeper than the temporary fitting means,
An accumulation mechanism is provided between the delivery mechanism and the fitting mechanism, in which the long material from the delivery mechanism is temporarily retained,
A normal mode in which the delivery speed of the long material from the delivery mechanism is lower than the pull-out speed at which the long material is pulled out from the accumulator mechanism, and a retention mode in which the feed speed is higher than the pull-out speed are divided into the accumulation mode. Alternately and repetitively according to the length of stay of the elongated material in the mechanism.

The accumulator mechanism includes a movable pulley around which the elongated material is wound,
When the height of the movable pulley exceeds the upper limit height of a predetermined lifting range in the normal mode, it is switched to the staying mode,
Preferably, when the height of the movable pulley falls below the lower limit height of the lifting range in the stay mode, the mode is switched to the normal mode.
By using the movable pulley, the tension acting on the elongated material can be reliably reduced.
In the normal mode, the length of stay of the long material is shortened, so that the movable pulley is raised. In the staying mode, the movable pulley descends by increasing the staying length of the long material. By detecting the height of the movable pulley, it is possible to switch the mode according to the staying length.

The method of the present invention is a belt-shaped member manufacturing method for attaching an attached elongated member to a mounting seat of a main belt member in a belt-shaped member to be a helical rehabilitation pipe along the inner circumference of an underground pipe,
a step of conveying the main strip along the conveying route with the strip length direction of the main strip facing the flow direction of the conveying route;
sending the elongated material to a fitting mechanism on the conveying path;
a step of temporarily fitting the elongated member to the mounting seat by temporary fitting means of the fitting mechanism;
a step of fitting the elongated material into the mounting seat deeper than the temporary fitting means by a permanent fitting means arranged downstream of the temporary fitting means of the fitting mechanism in the conveying path;
characterized by comprising
Preferably, the method of the present invention is a belt-shaped member manufacturing method in which an attached elongated member is attached to a mounting seat of a main belt member in a belt-shaped member to be a helical rehabilitation pipe along the inner circumference of an underground pipe,
a step of conveying the main strip along the conveying route with the strip length direction of the main strip facing the flow direction of the conveying route;
a step of regulating the position of the main strip in the width direction by a pair of regulating guides arranged apart from each other in the flow direction and the width direction of the conveying path;
sending the elongated material to a fitting mechanism on the conveying path;
a step of temporarily fitting the long member to the mounting seat by temporary fitting means disposed between the pair of regulation guides in the fitting mechanism;
In the fitting mechanism, the permanent fitting means arranged on the downstream side of the conveying path from the temporary fitting means and the pair of regulating guides pushes the elongated material deeper into the mounting seat than the temporary fitting means. a step of fitting into
It has
Preferably, the method of the present invention is a belt-shaped member manufacturing method in which an attached elongated member is attached to a mounting seat of a main belt member in a belt-shaped member to be a helical rehabilitation pipe along the inner circumference of an underground pipe,
a step of conveying the main strip along the conveying route with the strip length direction of the main strip facing the flow direction of the conveying route;
sending the elongated material to a fitting mechanism on the conveying path;
A step of temporarily accumulating the elongated material before reaching the fitting mechanism after being sent out by an accumulating mechanism;
A normal mode in which the delivery speed of the long material is lower than the pull-out speed at which the long material is pulled out from the accumulator mechanism and a retention mode in which the feed speed is higher than the pull-out speed are divided into the alternating and repetitively performing according to the residence length of the length of material;
a step of temporarily fitting the pulled-out elongated member to the mounting seat by temporary fitting means of the fitting mechanism;
a step of fitting the elongated material into the mounting seat deeper than the temporary fitting means by a permanent fitting means arranged downstream of the temporary fitting means of the fitting mechanism in the conveying path;
It has

According to the present invention, it is possible to securely attach an attached elongated member such as a sealing member or a reinforcing member to the main strip member.

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

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

As shown in FIG. 8, the rehabilitating pipe 9 is a helical pipe made up of a belt-like member 10. As shown in FIG. A band-shaped member 10 is spirally wound along the inner peripheral surface of the buried pipe 8, and the side edges of the band-shaped member 10 facing each other with a circumference difference of one circumference are joined by concave-convex fitting (Fig. 9 and 10).

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

As shown in FIG. 5, a first fitting portion 13 is provided at one end in the width direction of the flat belt portion 12, and a second fitting portion 14 is provided at the other end. These fitting portions 13 and 14 have a plurality of recessed grooves 13a and 14a and a plurality of ridges 13b and 14b, respectively, and are formed in concave and convex cross-sectional shapes complementary to each other.

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

As shown in FIG. 5, a belt-shaped reinforcing member 18 (attached elongated body) is provided on the outer peripheral side portion of the main strip 11 (the portion facing the outer periphery when the rehabilitating pipe 9 is formed). The reinforcement member 18 has a top plate portion 18a, a pair of side plate portions 18b, and a pair of arm plate portions 18c, and is formed to have a substantially M-shaped cross section, and extends in the same direction as the main strip member 11 (see FIG. 5 ( a) extending in the direction perpendicular to the paper surface). The material of the reinforcing member 18 is metal such as steel. The side plate portion 18b comes close to or abuts on the rib 15, and the arm plate portion 18c having an L-shaped cross section is pressed against the flat belt portion 12. It is locked to the portions 13c and 14c. A mounting seat 17 for mounting the reinforcing member 18 to the main band member 11 is constituted by the rib 15, the flat band portion 12, and the engaging portions 13c and 14c.

As shown in FIG. 5, a sealing member 19 (attached elongated body) is accommodated in, for example, a concave groove 14a' on the outer side in the width direction of the second fitting portion 14. As shown in FIG. The groove 14 a ′ on the outside 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 accommodated not only in the concave groove 14a' but also in the other concave grooves 13a and 14a.
The sealing member 19 is made of, for example, highly elastic rubber or elastomer such as ethylene-propylene-diene rubber (EPDM). The inner layer of the sealing material 19 may be made of a foam such as EPDM, and the outer surface thereof may be covered with a non-foamed skin layer.

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

As shown in FIG. 10, in the rehabilitating pipe 9, the sealing material 19 is further compressed and deformed by the corresponding projection 13b' entering the groove 14a', and the inner peripheral surface of the groove 14a' and the projection 13b are deformed. ' is strongly pressed against the outer peripheral surface of the . As a result, watertight performance is ensured at the junction between the fitting portions 13 and 14 .

FIG. 1 shows, in particular, the assembly line of the main strip 11 and the sealing material 19 in the manufacturing apparatus 1 for the strip-shaped member 10. As shown in FIG. A strip-shaped member manufacturing apparatus 1 includes a conveying mechanism 2 , a sending mechanism 3 and a fitting mechanism 4 .

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

As shown in FIGS. 1 to 3, a pair of regulation guides 23 and 24 are provided on the conveying path 2a. The regulating guides 23 and 24 are composed of disk-shaped rotating rollers supported by horizontal rotating shafts 25 and 26, respectively, but they may be block-shaped. The regulating guides 23 and 24 are arranged apart from each other in the flow direction of the transport path 2a (horizontal 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 regulation guide 23 on the upstream side (left side in FIG. 2) in the flow direction of the conveying path 2a is 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 between them.
The restriction guide 24 on the downstream side (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 and the adjacent rib 15 in the main belt portion 11. It is crowded.
These regulation guides 23 and 24 regulate the position of the main strip 11 in the width direction of the conveying path 2a.

As shown in FIG. 1, the delivery mechanism 3 includes a delivery reel 30. As shown in FIG. A sealing material 19 is delivered from a delivery reel 30 . The pay-out reel 30 may be rotated by the tension of the paid-out seal material 19 . The delivery mechanism 3 may have a control unit for turning on/off the rotation of the delivery reel 30 or adjusting the rotation speed.

As shown in FIGS. 1 and 2, a fitting mechanism 4 is arranged on the conveying path 2a. The fitting mechanism 4 includes a temporary fitting roller 41 (temporary fitting means) and a full fitting roller 42 (full fitting means). As shown in FIGS. 2 and 3, the fitting rollers 41 and 42 are disk-shaped and supported by horizontal rotating shafts 43 and 44, respectively, and are arranged in grooves 14a' in the main strip 11 on the conveying path 2a. are arranged to face the Moreover, the temporary fitting roller 41 is arranged between a pair of regulation guides 23 and 24 in the flow direction of the conveying path 2a. The main fitting roller 42 is arranged downstream of the conveying path 2a (on the right side in FIG. 2) of the downstream regulation guide 24, and further downstream of the temporary fitting roller 41 of the conveying path 2a. there is

Further, as shown in FIG. 1, the temporary fitting roller 41 is recessed from the main fitting roller 42 toward the opposite side (upper side in FIG. 1) of the direction of fitting into the concave groove 14a'. Specifically, as shown in FIGS. 4B and 4C, the lower end of the temporary fitting roller 41 is positioned above the lower end of the final 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. 4(c), the lower end of the main fitting roller 42 is deeply inserted into the concave groove 14a'.

At least the thickness of the outer peripheral portions of these fitting rollers 41 and 42 is smaller than the width of the narrowest portion of the concave groove 14a'.
Further, the outer peripheral portion of the temporary fitting roller 41 is thinner than the outer peripheral portion of the final fitting roller 42 . The thickness of the outer peripheral portion of the temporary fitting roller 41 is thin enough not to cut the sealing material 19, 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 , fixed pulleys 51 and 52 and a movable pulley 53 . The fixed pulleys 51 and 52 are separated from each other and rotatably supported by the frame 50 . A movable 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 movable pulley 53 .

The sealing material 19 from the supply reel 30 is wound around the fixed pulley 51, the movable pulley 53, and the fixed pulley 52 in this order. The sealing material 19 is temporarily retained for the length passing through these pulleys 51 , 53 , 52 .

Although illustration is omitted, for example, a fitting mechanism for the reinforcing material 18 may be further provided in the conveying path 2a between the fitting mechanism 4 and the secondary winding drum 22 . As for 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 is provided, and then the reinforcing material 18 is fitted to the mounting seat 17 to the regular mounting position. Temporary fitting means such as a final fitting roller may be included. An accumulating mechanism similar to the accumulating mechanism 5 may be provided on the route for supplying the reinforcing material 18 to the reinforcing material fitting mechanism.

The belt-shaped member 10 is manufactured as follows.
The main strip 11 is extruded by an extruder (not shown) and wound around a primary winding drum 21 . The primary winding drum 21 is installed at the upstream end of the conveying mechanism 2 .
<Conveyance process>
Then, the main strip 11 is let out from the primary winding drum 21 and transported along the transport path 2a.

<Delivery process>
At the same time, the sealing material 19 is delivered from the delivery reel 30 of the delivery mechanism 3 . The sealing material 19 is introduced through the pulleys 51, 53 and 52 of the accumulator mechanism 5 between the groove 14a' of the main strip 11 and the temporary fitting roller 41 on the conveying path 2a.
<Temporary fitting process>
As a result, as shown in FIG. 4(b), the sealing material 19 is inserted into the concave groove 14a' by the temporary fitting roller 41 to be temporarily fitted. At this stage, the sealing material 19 may be fitted into the groove 14a' shallowly, and it is not necessary to insert it to the bottom of the groove 14a'. Therefore, a large force is not required, and the positioning accuracy between the sealing material 19 and the recessed groove 14a' can be improved accordingly. For example, the temporary fitting roller 41 can be made thin because it does not require a large load-bearing strength. Since the thin temporary fitting roller 41 bites into the sealing material 19, the sealing material 19 can be easily guided to an accurate position.
In addition, since the temporary fitting roller 41 is arranged between the pair of regulation guides 23 and 24 in the flow direction of the conveying path 2a, the main strip 11 between the pair of regulation guides 23 and 24 is moved by the regulation guide 23. , 24 so as not to sway in the width direction of the conveying path 2a, and then the sealing member 19 can be temporarily fitted into the recessed groove 14a' of the position-regulated portion. Therefore, it is possible to further improve the positioning accuracy of the sealing material 19 during temporary fitting.
By arranging the regulating guides 23 and 24 so as to be offset from each other in the flow direction and the width direction of the conveying path 2a, the vibration of the main strip 11 can be effectively regulated with the smallest possible number of regulating guides.

<Main mating process>
Subsequently, as shown in FIG. 4( c ), the final fitting roller 42 pushes the sealing material 19 deeper into the concave groove 14 a ′ than the temporary fitting roller 41 . As a result, the sealing material 19 can be tightly fitted into the concave groove 14a'.
The sealing material 19 is preliminarily fitted into the recessed groove 14a' by the temporary fitting roller 41, and then fitted to the proper mounting position by the final fitting roller 42, thereby preventing fitting failure. can be avoided from floating from the concave groove 14a'. Even if the width of the recessed groove 14a' is narrow, the sealing material 19 can be reliably attached to the recessed groove 14a'.

After fitting, the seal material 19 is integrated with the main belt material 11 and conveyed 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 accumulator mechanism 5 .

As shown in FIGS. 1 and 6, the sending mechanism 3 and the accumulating mechanism 5 are interlocked with each other to perform a normal mode and a staying mode according to the staying length of the sealing material 19 in the accumulating mechanism 5. FIG.
<Normal mode>
In the normal mode, the feeding speed of the sealing material 19 from the feeding mechanism 3 is lower than the drawing speed of the sealing material 19 from the accumulating mechanism 5 . That is, the rotation speed of the supply reel 30 is low. The rotation of the delivery reel 30 may be stopped.
As the sealing material 19 is pulled out from the accumulating mechanism 5, the staying length of the sealing material 19 becomes shorter, and the movable pulley 53 moves upward.
By providing the movable pulley 53 in the path of the sealing material 19, the tension acting on the sealing material 19 can be reduced. Therefore, it is possible to prevent the diameter of the sealing material 19 from being reduced due to being stretched, and the sealing material 19 can be brought into close contact with the inner peripheral surface of the groove 14a'.

As shown in FIG. 6, in the normal mode, when the staying length of the sealing material 19 is less than a predetermined length and the height of the movable pulley 53 exceeds the upper limit height of the predetermined lifting range, the position sensor 54 detects this. detects. By inputting the detection signal to the control circuit of the pay-out reel 30, the mode is switched to the staying mode.

<Stay Mode>
In the staying mode, the delivery reel 30 is rotated at a higher speed than in the normal mode. Therefore, the delivery speed of the sealant 19 from the delivery mechanism 3 is higher than the withdrawal speed of the sealant 19 from the accumulator mechanism 5 . As a result, the sealing material 19 is supplied from the supply reel 30 to the accumulating mechanism 5 at high speed, the moving pulley 53 descends, and the staying length of the sealing material 19 in the accumulating mechanism 5 increases.

As shown in FIG. 1, when the staying length returns to a desired size and the height of the movable pulley 53 falls below the lower limit height of the lifting range, the staying mode is switched to the normal mode. That is, the rotational speed of the pay-out reel 30 is returned to the low speed of the normal mode or zero.
After that, as the main strip 11 is conveyed, the sealing material 19 is supplied from the accumulating mechanism 5 to the fitting mechanism 4, so that the staying length is shortened again and the movable pulley 53 is raised.
The above normal mode and stay mode are alternately and repeatedly executed.

<Reinforcing material installation process>
Although not shown in detail, a reinforcing member 18 is fitted to the main strip 11 after the sealing member 19 has been fitted.
The reinforcing material 18 may also be retained temporarily by an accumulator mechanism. Further, it is preferable to temporarily fit the reinforcing member 18 to the mounting seat 17 by the temporary fitting means of the reinforcing member fitting mechanism, and then fit the reinforcing member 18 to the regular mounting position by the main fitting means. .
<Winding process>
Thus, the belt-shaped member 1 is assembled. The belt-like member 1 is wound around the secondary winding drum 22 .

The finished belt-like member 1 is carried to a rehabilitation site of an existing buried pipe 8 which has deteriorated, and a rehabilitation pipe 9 is manufactured along the inner peripheral surface of the buried pipe 8. - 特許庁
Since the sealing material 19 is firmly fitted into the concave groove 13a' of the band-shaped member 1 without being reduced in diameter due to tension, the sealing material 19 is reliably and sufficiently secured by the ridges 13b' when the tube is manufactured. Can be made to be compressed. As a result, the watertightness 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 embodiments described above, and various modifications can be made without departing from the scope of the invention.
For example, after the main strip 11 fitted with the sealing material 19 is once wound around the secondary winding drum 22, the main strip 11 may be let out and the reinforcing member 18 fitted.
The reinforcing member 18 may be fitted to the main strip 11 first, and then the sealing member 19 may be fitted.
The temporary fitting rollers 41 of the fitting mechanism 4 may be provided in multiple stages. A plurality of stages of the main fitting rollers 42 may be provided.
The accumulator mechanism 5 may have a plurality of stages of pulley mechanisms composed of the fixed pulleys 51 and 52 and the movable pulley 53 .
The accumulating mechanism 5 may have a slackness holding portion that holds the elongated materials 18 and 19 in a slackened state.
Switching between the normal mode and the retention mode may be performed according to the tension of the elongated materials 18 and 19 .
The helical rehabilitation pipe may have a double helical structure of a main belt-shaped member and a connecting belt-shaped member. For example, ridges (fitting portions) are provided on both sides in the width direction of the main belt-shaped member, and concave grooves (fitting portions) in which the ridges are fitted are provided on both sides in the width direction of the connecting belt-shaped member. Adjacent turns of the main belt-like member may be connected to each other via a connecting belt-like member. Belt-shaped members to be manufactured by the manufacturing apparatus and manufacturing method according to the present invention include the main belt-shaped member and the connecting belt-shaped member.

INDUSTRIAL APPLICABILITY The present invention can be applied, for example, to rehabilitation technology for aging sewage pipes.

1 belt-shaped member production device 2 transport mechanism 2a transport path 23, 24 regulation guide 3 delivery mechanism 30 delivery reel 4 fitting mechanism 41 temporary fitting roller (temporary fitting means)
42 main fitting roller (main fitting means)
5 Accumulator mechanism 50 Frames 51, 52 Fixed pulley 53 Movable pulley 54 Position sensor 8 Buried pipe 9 Rehabilitation pipe 10 Belt-shaped member 11 Main belt 13 First fitting part 14 Second fitting part 14a' Groove (mounting seat)
17 Mounting seat 18 Reinforcing material (long material)
19 sealing material (long material)

Claims (5)

A band-shaped member manufacturing apparatus for attaching an attached elongated member to a mounting seat of a main band member in a band-shaped member to be a helical rehabilitation pipe along the inner circumference of an underground pipe,
a conveying mechanism for conveying the main strip along a conveying path;
a fitting mechanism arranged on the transport path;
a delivery mechanism for delivering the elongated material to the fitting mechanism;
wherein the fitting mechanism includes temporary fitting means for temporarily fitting the elongated material to the mounting seat; full fitting means for fitting the mounting seat deeper than the temporary fitting means,
The conveying mechanism includes a pair of regulating guides for regulating the position of the main strip in the width direction of the conveying path, and the regulating guides are arranged apart from each other in the flow direction and the width direction of the conveying path. ,
The band-shaped member manufacturing apparatus, wherein the temporary fitting means is arranged between the pair of regulation guides in the flow direction. A band-shaped member manufacturing apparatus for attaching an attached elongated member to a mounting seat of a main band member in a band-shaped member to be a helical rehabilitation pipe along the inner circumference of an underground pipe,
a conveying mechanism for conveying the main strip along a conveying path;
a fitting mechanism arranged on the transport path;
a delivery mechanism for delivering the elongated material to the fitting mechanism;
wherein the fitting mechanism includes temporary fitting means for temporarily fitting the elongated material to the mounting seat; full fitting means for fitting the mounting seat deeper than the temporary fitting means,
An accumulation mechanism is provided between the delivery mechanism and the fitting mechanism, in which the long material from the delivery mechanism is temporarily retained,
A normal mode in which the delivery speed of the long material from the delivery mechanism is lower than the pull-out speed at which the long material is pulled out from the accumulator mechanism, and a retention mode in which the feed speed is higher than the pull-out speed are divided into the accumulation mode. A band-shaped member manufacturing apparatus characterized in that the processes are alternately and repeatedly executed according to the staying length of the long material in the mechanism. The accumulator mechanism includes a movable pulley around which the elongated material is wound,
When the height of the movable pulley exceeds the upper limit height of a predetermined lifting range in the normal mode, it is switched to the staying mode,
3. The band-shaped member manufacturing apparatus according to claim 2, wherein the stay mode is switched to the normal mode when the height of the movable pulley falls below the lower limit height of the lifting range. A belt-shaped member manufacturing method for attaching an attached elongated member to a mounting seat of a main belt member in a belt-shaped member serving as a helical rehabilitation pipe along the inner circumference of an underground pipe,
a step of conveying the main strip along the conveying route with the strip length direction of the main strip facing the flow direction of the conveying route;
a step of regulating the position of the main strip in the width direction by a pair of regulating guides arranged apart from each other in the flow direction and the width direction of the conveying path;
sending the elongated material to a fitting mechanism on the conveying path;
a step of temporarily fitting the long member to the mounting seat by temporary fitting means disposed between the pair of regulation guides in the fitting mechanism;
a step of fitting the elongated member into the mounting seat deeper than the temporary fitting means by the permanent fitting means arranged downstream of the temporary fitting means in the conveying path in the fitting mechanism; ,
A belt-shaped member manufacturing method comprising: A belt-shaped member manufacturing method for attaching an attached elongated member to a mounting seat of a main belt member in a belt-shaped member serving as a helical rehabilitation pipe along the inner circumference of an underground pipe,
a step of conveying the main strip along the conveying route with the strip length direction of the main strip facing the flow direction of the conveying route;
sending the elongated material to a fitting mechanism on the conveying path;
A step of temporarily accumulating the elongated material before reaching the fitting mechanism after being sent out by an accumulating mechanism;
A normal mode in which the delivery speed of the long material is lower than the pull-out speed at which the long material is pulled out from the accumulator mechanism and a retention mode in which the feed speed is higher than the pull-out speed are divided into the alternating and repetitively performing according to the residence length of the length of material;
a step of temporarily fitting the pulled-out elongated member to the mounting seat by temporary fitting means of the fitting mechanism;
a step of fitting the elongated material into the mounting seat deeper than the temporary fitting means by a permanent fitting means arranged downstream of the temporary fitting means of the fitting mechanism in the conveying path;
A belt-shaped member manufacturing method comprising:

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