JPH0673702B2 - Lining pipe making machine - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION A. Purpose of the Invention (1) Field of Industrial Application The present invention relates to a pipe manufacturing machine for spirally winding a belt-shaped member to create a pipe, and particularly to a lining pipe in an existing pipe. The present invention relates to a lining pipe making machine suitable for charging a pipe.

(2) Conventional Technology Generally, a so-called spiral winding type pipe manufacturing machine for spirally winding a strip-shaped member to manufacture a pipe is continuously manufactured by receiving an extrusion force in a process of manufacturing the manufactured pipe. Since it is a thing, it suffices to place the pipe making machine only in a certain place, and it is economical because it does not take up a lot of space.

However, the spiral winding type pipe making machine is generally used in the factory, the machine frame is made rigid, and no special consideration is given to the change of the pipe diameter. It was used by using another pipe making machine.

Therefore, in such a pipe making machine, not only one type of pipe cannot manufacture pipes having various pipe diameters, but also when this pipe is placed on-site for lining underground pipes, There are various inconveniences in that it is not possible to cope with various kinds of pipe diameters and also to set a central axis for the underground buried pipe.

Further, since the belt-shaped member has elasticity, it tends to deviate in the outer diameter direction when it is folded into a tubular shape, and it is difficult to obtain an accurate roundness. Are arranged in a circumferential position, the installation becomes complicated, and the tendency becomes larger as the diameter becomes larger, resulting in higher manufacturing cost.

(3) Problems to be Solved by the Invention In view of the above circumstances, the present invention eliminates the above-mentioned drawbacks of the prior art, allows the pipe diameter to be changed freely, and provides a new roundness. The purpose (technical problem) is to provide a pipe manufacturing machine.

B. Configuration of the Invention (1) Means for Solving Problems The pipe manufacturing machine of the present invention has the following configuration (technical means) in order to achieve the above object.

That is, the first aspect of the present invention is such that the inner surface is made smooth, and the outer surface is provided with a plurality of ridges 2 longitudinally in the longitudinal direction at predetermined intervals via valley portions 3 and is continuously supplied in a strip shape. The member 1 is sandwiched between an outer surface roller and an inner surface roller to be driven and fed, and sequentially folded in the circumferential direction, and side ends of the belt-shaped member 1 are joined to each other to form a lining pipe P by spiral winding. H, which is a machine frame 10 that constitutes a load bearing material of the pipe manufacturing machine, includes a pillar member 11 arranged upright at four corners, and an upper portion arranged in a horizontal direction surrounding four circumferences of the pillar member 11. The beam frames 12 and 13 and the lower beams 14 and 15 are configured to be adjustable in size, and the body frame 10 has a belt-shaped member joint portion joining mechanism portion 40 arranged at a position where the belt-shaped member 1 is first closed, and Band-shaped member joint part Guiding mechanism parts 70, 80 arranged at a position rearward from the joining mechanism part 40 And the pipe rotation mechanism section 50 are arranged at the circumferential positions together with the belt-shaped member joint section joining mechanism section 40 so that the angle can be adjusted, and the belt-shaped member feed mechanism section 20 is positioned in front of the belt-shaped member joint section joining mechanism section 40. Are arranged, and at least the strip-shaped member feeding mechanism unit 20, the strip-shaped member joint unit joining mechanism unit 40, and the tube rotation mechanism unit 50 sandwich the strip-shaped member from the inner and outer surfaces along its shape.
2, 52 and having outer rollers 21, 41, 51 with unevenness, and
At least the outer roller of the tube rotation mechanism section 40 is inclined with respect to the axis of the lining tube in the direction of applying a thrust force, and the concavo-convex portion is engaged along the ridges 2 and the valleys 3 of the band-shaped member 1. Further, at least the strip-shaped member feeding mechanism 20 and the pipe rotating mechanism 50 are driven by power, and the feeding speed of the strip-shaped member feeding mechanism 20 is slower than the feeding speed of other pipe-making mechanisms. It is characterized in that it is associated so as to be driven.

A second aspect of the invention is that the machine frame in the first aspect of the invention is a fixed type, and the inner surface is smooth,
On the outer surface, a plurality of protrusions 2 are provided in the longitudinal direction in a longitudinal direction at predetermined intervals via valley portions 3, and a strip-shaped member 1 that is continuously supplied is sandwiched between an outer roller and an inner roller. A pipe manufacturing machine H for feeding and driving, folding in the circumferential direction in sequence, and joining side ends of the strip-shaped member 1 to each other to form a lining pipe P by spiral winding, which constitutes a load bearing material of the pipe manufacturing machine. The band-shaped member joint part of the band-shaped member disposed at the position where the band-shaped member 1 is first closed
40, and the guide mechanism portions 70, 80 and the pipe rotating mechanism portion 50 arranged at a position rearward of the belt-shaped member joint portion joining mechanism portion 40 are arranged at circumferential positions together with the belt-shaped member joint portion joining mechanism portion 40, Further, the band-shaped member feed mechanism unit 20 is arranged at a position before the band-shaped member joint unit bonding mechanism unit 40, and at least the band-shaped member feed mechanism unit 20, the band-shaped member joint unit bonding mechanism unit 40, and the pipe rotation mechanism unit 50. It has inner rollers 22, 42, 52 and inner and outer rollers 21, 41, 51 that sandwich the strip-shaped member along its shape from the inner and outer surfaces, and at least the outer roller of the tube rotation mechanism section 50 is thrust. Is provided in such a manner as to be inclined with respect to the axis of the lining pipe in the direction of giving the ridge, and the concave and convex portions thereof are arranged so as to be engaged along the ridges 2 and the valleys 3 of the strip-shaped member 1, and at least the strip-shaped member feeding mechanism. Department
20 and the pipe rotating mechanism unit 50 are driven by power, and the feeding speed of the belt-shaped member feeding mechanism unit 20 is associated so as to be driven so as to be slower than the feeding speeds of other pipe manufacturing mechanism units. To do.

(2) Action The strip-shaped member 1 is produced by the present pipe-making machine as follows.

That is, the belt-shaped member 1 that is continuously supplied is fed to the feeding mechanism unit.
The pipe P is manufactured by passing between the outer surface roller and the inner surface roller of each of the pipe making mechanism portions of the joint mechanism portion 40, the guide mechanism portions 70, 80, and the rotation mechanism portion 50 and spirally winding the pipe P. .

At this time, a pillar member that supports each pipe manufacturing mechanism portion according to the pipe diameter
11 and the upper and lower vertically movable beams 13 and 14 are moved and adjusted, and the angle of each pipe manufacturing mechanism is adjusted.

Further, since the feeding speed of the belt-shaped member feeding mechanism section 20 is decelerated and driven, a pulling force (pulling back force) is applied to the belt-shaped member 1.
Is introduced, and the slack of the strip-shaped member 1 in the other pipe manufacturing mechanism parts is adjusted, and a uniform lining pipe P is obtained.

(3) Example Hereinafter, an example of the pipe making machine of the present invention will be described with reference to the drawings.

1 to 6 show a lining pipe-making machine H which is an embodiment of the present invention.

Band-shaped member 1 First, the band-shaped member used in the present invention will be described with reference to FIG. 7.

The strip-shaped member 1 has an appropriate number of trapezoidal ridges 2 in the longitudinal direction of the outer surface.
Are continuously cascaded, and valleys 3 are formed between the ridges 2. The ridges 2 and the valleys 3 have the same pitch in the width direction.
A hollow portion is appropriately formed inside the ridge 2, so that the belt-shaped member can be made rigid and lightweight. The inner surface 4 is formed to be substantially smooth.

On both sides of the belt-shaped member 1, joint parts 5 and 6 are formed which overlap with each other and engage with each other. That is, the ridges of the outer joint portion 5 are formed in the same shape as the ridges 2, and a circular groove 5a is vertically provided on the inner surface thereof, and the overhanging portion 5b is slightly longer than the width of the valley portion 3. . The inner joint portion 6 has a protruding portion 6a having a length longer than that of the valley portion 3, and the end portion of the protruding portion 6a has a round shape that engages with the circular groove 5a of the outer joint portion 5. A ridge 6b is provided vertically, and a notch groove 6c is provided vertically on the ridge 2 at the base thereof.

At the time of joining, the outer joint portion 5 is pressed against the inner joint portion 6 by the joining roller 41 (described later), so that the round convex groove is formed in the round concave groove 5a.
6b and the ends of the overhanging portions 5b are respectively fitted and joined to the cut groove 6c. Further, a welding roller 43 (described later) is pressed against the overlapping portion and welded by high frequency heat.

It is possible to adopt a mode of joining by an adhesive instead of the welding joining. It is possible to obtain a joint having excellent waterproofness by welding or bonding at the joint.

The belt-shaped member is made of a synthetic resin material, and in particular, vinyl chloride (PVC) resin that can be continuously molded by extrusion forming is preferable from the viewpoint of moldability. However, it does not prevent the metal molding.

Pipe Maker H The detailed structure of the pipe maker H is shown in FIGS. 1 to 6.

The pipe making machine H is composed of a main body frame 10, a belt-shaped member feeding mechanism portion 20, a belt-shaped member joint portion joining mechanism portion 40, a pipe rotating mechanism portion 50, a lower guide mechanism portion 70, and a side guide mechanism portion 80.

Of these main parts, the mechanical parts 20, 40, 50, 70, 80 excluding the machine body frame 10 constitute a pipe manufacturing mechanism, and are collectively referred to as "pipe manufacturing mechanism".

The detailed configurations of these main parts will be described below.

Airframe Frame 10 Airframe frame (machine frame) 10 (see FIGS. 1 to 5) includes pillar members 11 standing upright at four corners, an upper beam 12 fixed around the pillar members 11, and an upper and lower movable beam ( Hereinafter, it will be simply referred to as an “upper movable beam” 13, a lower vertically movable beam (hereinafter simply referred to as a “lower movable beam”) 14, and a lower beam 15.

The length of the machine body frame 10 can be adjusted vertically and in the width direction, so that the machine frame can be freely adapted to the pipe diameter.

More specifically, the column member 11 is made of box-shaped steel, and includes a front column 11A and a rear column 11B when viewed in the traveling direction of the pipe P.

The upper beam 12 is made of thin steel having a front portion and a rear portion 12A opened downward, and the side beam 12B connecting them is made of box steel.

In the upper movable beam 13, front and rear beams 13A are made of grooved steel having front and rear openings, and are connected at the center thereof by two connecting beams 13B made of box-shaped steel.

The lower movable beam 14 has substantially the same configuration as the upper movable beam 13 described above. That is, the front and rear beams 14A are made of thin steel that is open to the front and the rear, and are connected at the center thereof by two connecting beams 14B made of box-shaped steel.

The lower beam 15 has substantially the same configuration as the upper beam 12 described above. That is, the front and rear beams 15 are made of channel steel that opens upward, and the side beams 15B that connect them are made of box steel.

The machine body frame 10 has a function of supporting respective mechanical units (a feed mechanical unit and other pipe manufacturing mechanical units) described later, and holding the respective mechanical units according to the pipe diameter of the pipe P.

The column member 11 is variable in the width direction along the beam members 12, 13, 14, and 15. That is, the front and rear beam members 12, 13, 14, 15 are provided with a large number of adjusting bolt holes 12a, 13a, 14a, 15a in the longitudinal direction, and the column member 11 is widthwise along the bolt holes. Move and fix with bolts 16. Needless to say, the groove may be replaced with a groove formed in a discontinuous manner.

The upper movable beam 13 and the lower movable beam 14 are vertically variable along the column member 11. That is, a plurality of bolt holes 11a for adjustment are provided in the column member 11 in the vertical direction, the upper and lower movable beams 13 and 14 are moved in the vertical direction along the bolt holes, and fixed by bolts 17. To do. The fact that the bolt hole 11a can be replaced with a groove means that the bolt hole 1 in the beam member 12, 13, 14, 15
Similar to 2a, 13a, 14a, 15a. In the movable beams 13 and 14,
The connecting beams 13B and 14B are fixed by bolts 18 so as to be movable and adjustable along the front and rear beams 13A and 14A.

The lower beam 15 is placed on the base I.

The belt-shaped member feeding mechanism section 20 includes a belt-shaped member feeding mechanism section 20 (see FIGS. 1 to 4). It is composed of a plurality of inner surface feed rollers 22 that are pressed against the inner surface of 1. The outer surface feed roller 21 and the inner surface feed roller 22 each have an outer banding belt 2 made of rubber.
3, the inner surface belt 24 is attached. Although a plurality of outer surface feed rollers 21 and inner surface feed rollers 22 are arranged in this embodiment, a single piece may be provided. Further, the outer and inner band belts 23, 24 may be omitted even if they are omitted. Reference numeral 25 is a hydraulic motor for driving the feed mechanism unit 20, which is connected to the hydraulic motor unit by a hydraulic hose.

Each of the rollers 21, 22 and the hydraulic motor 25 includes a front pillar 11A and a rear pillar 11
It is mounted on a pedestal 27 whose angle can be adjusted on a mounting plate 26 laid between B and B. The gantry 27 includes a back plate 27a facing the mounting plate 26, ribs 27b that support the shaft of the roller, and a shelf plate 27c that mounts and fixes the motor 25. Back plate 27a of frame 27
Is fixed to the mounting plate 26 by an angle adjusting mechanism (adjuster) 28 so that the angle can be adjusted.

The angle adjusting mechanism 28, as shown in FIG.
a threaded rod 28a protrudingly fixed to a, a groove 28b formed in the mounting plate 26 at a required angle to insert the threaded rod 28a, and a nut screwed with the threaded rod 28a to draw the back plate 27a toward the mounting plate 26. It consists of 28c. 28d is a washer. The angle adjusting mechanism is the joining mechanism 40, the rotating mechanism 50, and the guide mechanisms 70, 8 described later.
It is also provided in 0, and its substantial mechanism is equivalent to the angle adjusting mechanism 28 in the feeding mechanism section 20.

Power drive in the belt-shaped member feeding mechanism section 20 is performed as follows. The small gear 30 attached to the drive shaft of the hydraulic motor 25 is a large gear 31 having a rotation shaft on the rib 27b of the mount 27.
Is rotated by a chain, and the inner surface feed roller 22 coaxial with the large gear 31 is rotated. The inner surface feed rollers 22 have gears 32 on both sides, and are connected to each other by a chain. The outer surface feed rollers 21 also have gears 33, which are connected to each other by a chain, and are also connected to an appropriate gear 32 of the inner surface feed rollers 22 and rotated.

The power driving of the belt-shaped member feeding mechanism section 20 is not limited to the above, and only the outer surface feeding roller 21 may be power driven, and the inner surface roller 22 is simply brought into pressure contact with the belt-shaped member 1 and is rotated by following the friction. Good.

Further, when the outer surface and inner surface feed rollers 21 and 22 are single, the drive shaft of the hydraulic motor 25 is directly connected to the shaft of the outer surface feed roller 21, and the inner surface feed roller 22 is connected to the hydraulic motor unit (hydraulic cylinder). For example, a mode in which a pressure contact cylinder shown by reference numeral 102 in FIG. 10) is pressed at a predetermined pressure is adopted.

Joining mechanism section 40 Band-shaped member joint section Joining mechanism section 40 (see FIGS. 1 and 4)
Is composed of an outer surface joining roller 41, an inner surface joining roller 42 and a welding roller 43. A guide roller 44 is arranged inside the fusing roller 43.

The outer surface joining roller 41 and the inner surface joining roller 42 are both longer than the width of the belt-shaped member 1 by the amount corresponding to the joint, and are arranged on a horizontal line passing through the center of the pipe P. As a result, in the band-shaped member 1, the joint portions (the outer joint portion 5 and the inner joint portion 6) at the ends thereof are engaged with each other.

The fusing roller 43 is in contact with a power supply terminal (not shown), and the power supply terminal is connected to a power generator.

The rollers 41, 42, 43, 44, power terminals, and the like are mounted on a mount 46 that is adjustable in angle on a mounting plate 45 that spans the front pillar 11A and the rear pillar 11B. The cradle 46 is a back plate 46a, ribs 4
6b, the back plate 46d and the mounting plate 45 include an angle adjusting mechanism 47.
(The structure conforms to the angle adjusting mechanism 28 of the belt-shaped member feeding mechanism 20.). The inner surface joining roller 42 and the guide roller 44 are pivotally mounted so that their positions can be adjusted in the tube central axis direction, and the welding roller 43 is pivotally mounted so that their eccentric positions can be adjusted.

Tube Rotation Mechanism Section 50 The tube rotation mechanism section 50 (see FIG. 1, FIG. 2, and FIG. 3) is arranged on the upper part of the rear end of the completed tube P, and imparts rotational propulsive force to the tube P. To do.

The rotation mechanism section 50 includes a plurality of outer surface rotation rollers 51 and a plurality of inner surface rotation rollers 52. That is, the outer surface rotation roller 51
Has an uneven shape, and is pressed against the outer surface of the belt-shaped member 1 along the protrusions and the valleys 3, and the inner surface rotation roller 52 is pressed against the inner surface of the belt-shaped member 1. Outer surface rotating roller 51, inner surface rotating roller 52
An outer surface rotation bandage belt 53 and an inner surface bandage belt 54, which are made of rubber, are attached to the respective parts to obtain a uniform rotational force to the pipe P. Although a plurality of outer surface rotation rollers 51 and a plurality of inner surface rotation rollers 52 are arranged in this embodiment, a single piece may be provided. Further, the outer and inner band-wrapping belts 53 and 54 may be omitted. Reference numeral 55 denotes a hydraulic motor for driving the rotating mechanism 50, which is connected to the hydraulic motor unit by a hydraulic hose.

The rotating machine mechanism 50 is arranged so as to be inclined with respect to the axis of the pipe P to be produced, and by fitting the uneven portion of the outer surface rotating roller 51 and the protrusion 2 and the valley portion 3 of the belt-shaped member 1, A rotational force is applied to the pipe P, and a thrust force in the pipe P axial direction is generated. Not only this rotary machine mechanism 50, but also other pipe manufacturing mechanism parts
The outer rollers 40, 70, 80 are also arranged so as to be inclined with respect to the axis of the pipe P, and thus contribute to thrust as well.

Each of the rollers 51, 52 and the hydraulic motor 55 is mounted on a mount 57 which is arranged so that its angle can be adjusted on a mounting plate 56 spanned over the connecting beam 13B of the upper movable beam 13. Roller mounting ribs 57b are integrally fixed to the lower surface of the back plate 57a of the pedestal 57, and the mounting ribs 57b are pierced downward through the adjustment holes 56a formed in the mounting plate 56. The inner surface rotation roller 52 is pivotally attached to the rib 57b so that the position can be adjusted in the tube radial direction. Also, back plate 57
A motor mount 57c is integrally erected on the upper surface of a.
57d is a rib of the motor mount. Back plate 57a of the pedestal 57
The mounting plate 56 and the mounting plate 56 are connected by an angle adjusting mechanism 58.

Power drive in the tube rotation mechanism section 50 is performed as follows. Small gear attached to the drive shaft of hydraulic motor 55
Reference numeral 60 denotes a large gear 61 having a rotation shaft on a rib at the bottom of the frame (rotated by a chain to rotate an outer surface rotation roller 51 coaxial with the large gear 61.
And are connected to each other by a chain. The inner surface rotation rollers 52 also have gears 63, which are connected to each other by a chain and are connected to the gears 62 of the outer surface rotation roller 51 to obtain a rotational driving force.

The power driving of the tube rotating mechanism 20 is not limited to the above, and only the outer rotating roller 51 may be power driven, and the inner roller 52 may be simply brought into pressure contact with the belt-shaped member 1 and rotated by following the friction. .

Further, when the outer and inner rotating rollers 51, 52 are single, the drive shaft of the hydraulic motor 55 is directly connected to the shaft of the outer rotating roller 51, and the inner rotating roller 52 is connected to the hydraulic cylinder unit by a hydraulic cylinder ( For example, a mode is adopted in which a predetermined pressure is applied by a pressure contact cylinder (reference numeral 106 shown in FIG. 10).

Lower Guide Mechanism 70 and Side Guide Mechanism 80 The lower guide mechanism 70 includes an outer guide roller 71 and an inner guide roller 72. They are mounted at the lowest end of the pipe P manufactured.

Each of the rollers 71, 72 is mounted on a pedestal 74 whose angle can be adjusted on a mounting plate 73 laid over the connecting beam 14B of the lower movable beam 14. The gantry 74 includes a back plate 74a and ribs 74b, and the back plate 74a
The mounting plate 73 and the mounting plate 73 are connected by an angle adjusting mechanism 75. The inner surface roller 72 is supported by a rib 74b at its shaft portion so as to be movable back and forth in the direction of the tube axis center.

The lower guide mechanism unit 70 resists the force of the band-shaped member being pulled upward, and ensures the roundness of the pipe P.

The side guide mechanism 80 includes an outer guide roller 81 and an inner guide roller 82, which are arranged on a horizontal line passing through the central axis of the pipe P to be manufactured.

Each of the rollers 81 and 82 is mounted on a mount 85 fixed to a mounting plate 83 spanning the front pillar 11A and the rear pillar 11B via an angle adjusting mechanism 84. The mount 85 is a back plate that faces the mounting plate 83.
85a and a rib 85b that supports the shaft of the roller. The inner surface roller 82 is provided with a rib 85b on its shaft portion so as to be movable back and forth in the direction of the pipe axis center.
Supported by.

Power drive As described above, the belts of the belt-shaped member feeding mechanism section 20 and the rotation mechanism section 50 are driven by power.
In the joining mechanism 40 and the guide mechanisms 70 and 80, those rollers do not require special power, but they do not prevent the rollers, especially the outer surface rollers 41, 71, 81 from being driven by power. In this case, these outer rollers 41,7
The driving force of 1,81 is rotationally driven by a hydraulic motor that is interlocked with a hydraulic unit, like the feed mechanism unit 20 and the rotating mechanism unit 50, and the inner rollers 42, 72, 82 of these are also hydraulic cylinders. It is pressed by. It is not necessary to drive the lower guide mechanism 70 by power.

In the power drive of these rollers, the rotation of the power drive rollers 41, 51, 71, 81 of the pipe manufacturing mechanism other than the feed mechanism 20 is synchronized, and the rollers of the feed mechanism 20 are synchronized.
The rotation speed of 21 is slower than the rotation speed of other rollers.

Preparation of Pipe Hereinafter, a method of preparing a pipe by the pipe making machine H of the present embodiment and a function of each structure of the pipe making machine will be described.

First, the pipe making machine H is prepared according to the diameter of the pipe P to be produced.
Adjust each part of. That is, the column member 11 of the machine body frame 10 and the lower guide roller mechanism 70 are adjusted in the width direction, and the upper and lower movable beams 13 and 14 are adjusted in the vertical direction. These adjustments can correspond not only to the adjustment of the tube diameter but also to the eccentricity adjustment to the central axis of the tube. When adjusting the eccentricity in the vertical direction, the joining mechanism section 40 and the side guide mechanism section
80 also moves up and down and is adjusted.

Further, the belt-shaped member feeding mechanism unit 20, the belt-shaped member joining mechanism unit 40,
The swing angle of each roller of the tube rotation mechanism unit 50 and the guide mechanism units 70 and 80 is adjusted by each angle adjustment mechanism. These angle adjustments are performed at a gentler angle when the pipe diameter is larger, and at a steeper angle when the pipe diameter is smaller.

Next, the tip portion of the pipe P is created. That is, the belt-shaped member 1 is fed out, and then the belt-shaped member feeding mechanism section 20, the joining mechanism section 40, the lower guide mechanism section 70, the side guide mechanism section 80, and the rotation mechanism section 50 of the pipe making machine H are sequentially manually operated. 1 is spirally wound, and its tip reaches the joining mechanism 40. At this time, the inner surface rollers 42, 44, 72, 82, 52 which can be moved back and forth according to the diameter method are previously retracted in the tube axis center direction, and after passing the belt-shaped member 1, they are advanced to the outer roller side, The member 1 is clamped together with the outer surface roller.

In this state, the power unit 25 of the feed mechanism unit 20 and the rotation mechanism unit 50
When the power unit 55 is driven, the tip of the belt-shaped member 1 is forcibly fed between the outer surface joining roller 41 and the inner surface joining roller 42 of the joining mechanism 40, and the movement of the outer surface joining roller 41 causes the adjacent belt-like members to move. The end joints mesh with each other and polymerize. The polymerized joint is welded and firmly joined by the welding roller 43 following the joining roller 41.

Hereinafter, the strip-shaped member 1 is continuously supplied, and the pipe P is sequentially produced by the pipe manufacturing mechanism section.

Lining Construction in Underground Buried Pipe FIG. 8 shows an outline of the lining construction work in which the pipe, that is, the lining pipe P is inserted into the underground buried pipe Q using the pipe making machine H of the present invention.

In the figure, J is a vertical hole, and K is a hole of the vertical hole J. It is a winding drum. On the ground part, a vehicle O in which the power source generator L, the power source heat welding transformer M, and the hydraulic motor unit N are registered is placed in standby, and the power source heat welding transformer M and the hydraulic motor unit N are arranged side by side. Then, the power source and the hydraulic hose are connected to the manufacturing machine H and the required parts.

As technical problems that occur in such lining construction work, whether the manufacturing machine can be carried into the narrow vertical hole J and whether the operation is easy, and whether the buried pipe Q is the vertical hole J
It is not always placed at the center position of the pipe, and whether or not the eccentricity of the pipe making machine set at the bottom of the standing hole can be easily adjusted.

As is clear from the above description, the pipe manufacturing machine H of this embodiment can easily overcome the above problems.

That is, according to the lining pipe making machine H of the present embodiment,
A pillar member 11 for indicating each pipe manufacturing mechanism and the above and lower movable beams
By moving and adjusting 13, 14 and adjusting the angle of each pipe manufacturing mechanism, it is possible to easily cope with a large change in pipe diameter. Then, the continuously supplied strip-shaped member 1 is passed through each of the pipe-making mechanism portions of the joining mechanism portion 40, the guide mechanism portions 70, 80, and the rotation mechanism portion 50 and spirally wound to automatically manufacture the pipe. You can go.

At this time, since the feeding speed of the belt-shaped member feeding mechanism section 20 is decelerated and driven, a tensile force (pullback force) is introduced into the belt-shaped member 1 to adjust the slack of the belt-shaped member 1 in the other pipe manufacturing mechanism sections. Therefore, the lining pipe P having a uniform diameter can be obtained.

[Other Examples]

FIG. 9 shows another embodiment of the pipe manufacturing machine. In the figure, the same reference numerals are given to the same members as those in the above-described embodiment.

In this embodiment, the lower part of the machine body frame 10 is only the lower fixed beam 15, the lower guide roller mechanism 90 is fixed to the lower fixed beam 14, and the inner surface roller 91 is arranged downward.

For more details, attach the mounting plate 9 to the rear beam 15B of the lower fixed beam 15.
2 is fixed along the rear beam 15B so that its position can be adjusted, and a pedestal 93 is attached to the tip of the attachment plate 92 via an angle adjustment mechanism (not shown). The nut member 94 is mounted on the frame 93.
The nut member 94 has a roller holding member at its lower end.
A screw rod 96 having 95 fixed thereto is spirally arranged so that the position of the roller 91 can be adjusted in the vertical direction.

In the pipe manufacturing machine of this embodiment, the lower fixed beam 15 is placed on the invert S in the manhole, and the lining pipe P is formed by using the curved surface of the pipe line.

FIG. 10 shows an embodiment of a hydraulic circuit in which each pipe making element is hydraulically driven.

That is, the feed mechanism unit 20 is provided with the hydraulic motor 101 for the outer surface feed roller 21 and the pressure contact cylinder 102 for the inner surface roller 22, and the joining mechanism unit 40 is provided with the hydraulic motor for the outer surface joining roller 41.
103 and a pressure contact cylinder 104 of the inner surface roller 42 are arranged, and a hydraulic motor 105 for the outer surface rotation roller 51 and a pressure contact cylinder 106 of the inner surface roller 52 are arranged in the rotation mechanism section 50.
The side guide mechanism 80 includes a hydraulic motor for the outer guide roller 81.
107 and a pressure contact cylinder 108 for the inner surface roller 82 are arranged respectively. The hydraulic motors 101, 103, 105, 107 are provided with a rotation speed detector, for example, a rotary encoder, and send the rotation speed signal (frequency) to the control unit 120 as a speed control unit. The lower guide mechanism 70 is not hydraulically driven, but addition to this hydraulic circuit mechanism is a design matter.

The hydraulic motors 101, 103, 105, 107 are driven by the valve operation of the hydraulic motor electromagnetic proportional switching valves 111, 112, 113, 114 provided in the hydraulic lines branching from the hydraulic pumps, respectively, and the pressure contact cylinders 102, 104, 106, 108 also branch from the same hydraulic pump. The cylinder electromagnetic directional control valves 115, 116, 117, 118 installed in the hydraulic line are driven by valve operation.

A pressure compensating valve 111a and a pressure adjusting valve 111b are added between the electromagnetic proportional switching valve 111 and the hydraulic motor 101, and other switching valves 112, 113, 114 and the hydraulic motors 103, 105, 107 are provided.
Pressure compensating valves 112a, 113a, 114a are added between and. In the present embodiment, the pressure compensating valve 111a is arranged on the outward path side to the hydraulic motor 101, and the other pressure compensating valves 112a, 113a, 114a are arranged on the return path side of the respective hydraulic motors 103, 105, 107.

The hydraulic proportional switching valves 111 to 114 for hydraulic motors described above receive a control signal from the control unit (control unit) 120 to adjust the amount of oil and send it to the hydraulic motors 101, 103, 105, 107 to control the rotation speed corresponding to the pipe diameter. I do.

At this time, the hydraulic motors 101, 103, 105, 107 are compensated for the constant rotation even with respect to the pressure fluctuation due to the fluctuation of the load by the action of the pressure compensating valves 111a, 112a, 113a, 114a, and accurate roundness is obtained.

Further, the rotation of the hydraulic motor 101 of the feed mechanism is slowed down as compared with the other hydraulic motors due to the narrowing of the flow rate of the switching valve 111, so that the belt-shaped member 1 between the hydraulic motors 101 and 103 (or 107) is provided with a predetermined speed. Introduce tension. The pressure compensating valve 111a that exerts a pressure reducing action is disposed on the outward path side of the hydraulic motor 101, so that the hydraulic motor 101 can operate in the other hydraulic motor 1
Compared with 03,105,107, it is driven under reduced pressure, its rotational torque is reduced, and it follows other motors, whereby the tension on the belt-shaped member is adjusted.

A pressure adjusting valve 111b provided in a hydraulic circuit to the hydraulic motor 101 of the feed mechanism section reduces the pressure of the pressure oil to the hydraulic motor 101 when the pressure oil is fed back, and a pipe P is created. Rewind smoothly.

The cylinder electromagnetic method control valves 115 to 118 only control the ON / OFF of each pressure contact cylinder, and therefore control by a special control unit is not necessary and may be manually operated.

[Embodiment]

The present invention is not limited to the above embodiments, and various design changes can be made within the scope of the basic technical idea of the present invention. That is, the following aspects are included in the technical scope of the present invention.

The pipe manufacturing mechanism is not necessarily specified at the position of this embodiment, but may be arranged at a position for holding the perfect circle of the manufactured pipe. For example, the joining mechanism 40 is arranged at a tangential position where the strip-shaped member 1 is closed to form a pipe, and not only the horizontal position passing through the central axis of the pipe P but also the closing of the supplied strip-shaped member 1 The position is appropriately determined depending on the position. Further, the feed mechanism unit 20 can be attached to the upper portion of the body frame 10 (that is, on the upper beam 12).

Disposing the lower movable beam 14 and mounting the lower guide roller mechanism 70 on the lower beam 15. In this case, in adjusting the pipe diameter, the movement of the upper movable beam 13 is doubled, and the joining mechanism 40 and the side guide mechanism 80 are also movable.

To eliminate the outer guide roller 71 of the lower guide mechanism part 70 and guide it by the inner guide roller 72.

Disposing the welding roller 43 in the joining mechanism section 40, and arranging a welding means (for example, an adhesive injection nozzle) at a position before the belt-shaped members 1 are superposed by the joining rollers 41, 42.

The angle adjusting mechanisms 28, 47, 58, 75, 84 are not limited to those of this embodiment. What is essential is that each pipe-making element can be adjusted to a predetermined angle according to the pipe diameter.

The constituent members of the machine body frame 10 are made of an appropriate material and shape, the drive transmission chain is replaced by an appropriate means (for example, belt transmission), and the joining rollers 41, 42.
Joining the belt-shaped members only by itself is a matter of course as a matter of design, and will not be described in detail.

C. Effects of the Invention Since the present invention has the above-described configuration and has the effects, it has the following unique effects.

According to the pipe manufacturing machine of the first invention, it is possible to move and adjust each pipe manufacturing element in the vertical direction and the width direction (horizontal direction) in accordance with the pipe diameter, and adjust the angle. It is possible to manufacture a pipe having a diameter.

According to the pipe making machine of the second aspect of the invention, it is possible to adjust the eccentricity in the horizontal direction. Therefore, when used for lining into an existing pipe, it is easy to adjust the eccentricity in the lateral direction in a narrow working space. Can be performed, and especially effective.

According to the first and second aspects of the invention, by reducing the feeding speed of the belt-shaped member feeding mechanism, an appropriate pullback force acts on the bending of the belt-shaped member to prevent deviation of the belt-shaped member in the outer diameter direction. It can be prevented satisfactorily, the diameter of the pipe to be produced becomes more uniform, and the pipe production accuracy is improved.

[Brief description of drawings]

The drawings show an embodiment of the pipe making machine of the present invention. FIG. 1 is a front view of the pipe making machine of the embodiment, FIG. 2 is a left side view (partial cross-sectional view), and FIG. FIG. 4 is a plan view, FIG. 4 is a right side view (partially sectional view), FIG. 5 is an exploded three-dimensional view of a beam portion of a body frame, FIG. 6 is a sectional view of an angle adjusting mechanism, and FIG. FIG. 8 is a cross-sectional view of an actual embodiment of the strip-shaped member used, and FIG. 8 is a schematic view of an embodiment in which the present invention is applied to an underground buried pipeline. 9th
The drawing is a front view of a pipe making machine according to another embodiment. FIG. 10 shows an embodiment of the hydraulic circuit of this pipe making machine. 1 …… Band-shaped member, 10 …… Airframe frame, 11 …… Column member,
12 …… Upper beam, 13 …… Upper movable beam, 14 …… Lower movable beam, 15 …… Lower beam, 20 …… Feed mechanism part, 21 …… Outer surface feed roller, 22 …… Inner surface feed roller, 40 ...... Joining mechanism section, 41 …… Outer surface joining roller, 42 …… Inner surface roller, 50 ……
Pipe rotation mechanism part, 51 ... Outer surface rotation roller, 52 ... Inner surface roller, 70,80 ... Guide mechanism part, 71,81 ... Outer surface guide roller,
72,82 …… Inner roller

Front page continuation (71) Applicant 999999999 Adachi Construction Co., Ltd. 2-34-136 Nishisugamo, Toshima-ku, Tokyo (72) Inventor Shin-ichi Murakami 3-498 Narabashi, 3-498 Narabashi, Higashiyamato-shi, Tokyo

Claims (2)

[Claims] 1. An inner surface is made smooth, and a plurality of ridges (2) are longitudinally provided on the outer surface at predetermined intervals through valleys (3) and are continuously supplied. The strip-shaped member (1) is sandwiched by an outer surface roller and an inner surface roller, and is driven and driven, and is sequentially folded in a circumferential direction, and side ends of the strip-shaped member (1) are joined to each other to form a spirally wound lining pipe (P). ) Is a pipe making machine (H), wherein the machine body frame (10) constituting the load bearing material of the pipe making machine is
A pillar member (11) arranged upright in four corners, and the pillar member (1
Upper beams (12,13) that are arranged horizontally around the four circumferences of 1)
The lower frame (14, 15) and the lower beam (14, 15) are adjustable in size, and the body frame (10) includes a band-shaped member joint part (4) in which the band-shaped member (1) is initially closed.
0), and the guide mechanism parts (70, 80) and the pipe rotating mechanism part (50) arranged at a position rearward of the band-shaped member joint bonding mechanism part (40), the band-shaped member joint bonding part (40). And the band-shaped member feed mechanism part (20) is arranged in front of the band-shaped member joint part joining mechanism part (40) so as to be adjustable in angle, and at least the band-shaped member feed mechanism part. (20), band-shaped member joint part joining mechanism part (40) and tube rotation mechanism part (50) are provided with inner surface rollers (22, 42, 52) and concavo-convex for sandwiching the band-shaped member from the inner and outer surfaces along its shape. External roller (21,41,5
1), and at least the tube rotation mechanism section (40)
The outer surface roller is inclined with respect to the axis of the lining pipe in the direction of applying thrust, and the uneven portion is engaged along the ridge (2) and the valley portion (3) of the band-shaped member (1). Further, at least the band-shaped member feeding mechanism section (20) and the pipe rotating mechanism section (50) are driven by power, and the feeding speed of the band-shaped member feeding mechanism (20) is the feed rate of another tube manufacturing mechanism section. A pipe making machine characterized in that it is associated so as to be driven so as to be decelerated rather than speed. 2. An inner surface is made smooth, and a plurality of ridges (2) are longitudinally provided on the outer surface at predetermined intervals via valleys (3) and are continuously supplied. The strip-shaped member (1) is sandwiched by an outer surface roller and an inner surface roller, and is driven and driven, and is sequentially folded in a circumferential direction, and side ends of the strip-shaped member (1) are joined to each other to form a spirally wound lining pipe (P). ) Is a pipe making machine (H), and a band-shaped member joint arranged at a position where the band-shaped member (1) is first closed in a machine body frame (10) constituting a load bearing material of the pipe manufacturing machine. Part joining mechanism part (40), the guide mechanism part (70, 80) and the pipe rotating mechanism part (50) arranged at a position behind the band-shaped member joint part joining mechanism part (40) are joined to the band-shaped member joint part. It is arranged in the circumferential position with the mechanical part (40).
Further, the band-shaped member feed mechanism section (20) is arranged at a position before the band-shaped member joint section joining mechanism section (40), and at least the band-shaped member feed mechanism section (20) and the band-shaped member joint section joining mechanism section (40). ) And the tube rotation mechanism section (50) include an inner surface roller (22, 42, 52) and an outer surface roller (21, 41, 5) having a concavo-convex shape for sandwiching the strip-shaped member from the inner and outer surfaces along the shape thereof.
1), and at least the tube rotation mechanism section (50)
The outer surface roller is inclined with respect to the axis of the lining pipe in the direction of applying thrust, and the uneven portion is engaged along the ridge (2) and the valley portion (3) of the band-shaped member (1). Further, at least the strip-shaped member feed mechanism section (20) and the tube rotation mechanism section (50) are driven by power, and the feed speed of the strip-shaped member feed mechanism section (20) is equal to that of other pipe manufacturing mechanism sections. A pipe making machine characterized in that it is associated such that it is driven at a slower speed than the feed speed.