JP3769342B2 - Belt-like member feeding synchronous control device - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention continuously supplies a long belt-like member (profile) having joints formed on both side edges to a pipe making machine that is self-propelled in an existing pipe such as a water and sewage pipe or a gas pipe. Then, the joining portions that are in contact with each other while being spirally wound are joined together to form a spiral tube (lining tube), and a belt-like member that is newly supplied while moving the pipe making machine to the front side of the formed lining tube A profile that controls the feeding amount of a belt-like member fed to a pipe making machine, more specifically, by lining construction in which new lining pipes are sequentially added and formed by joining the joints while spirally winding them. The present invention relates to an in-feed synchronization control device.
[0002]
[Prior art]
The present applicant manufactures a lining pipe (tubular body) by spirally winding a band-shaped member in a tube cage and joining side edges of adjacent band-shaped members to each other by a rotatable pipe making machine. The lining construction method of the pipe inner peripheral surface which lines the pipe inner peripheral surface with the lining pipe is proposed (refer to JP-A-5-169539).
[0003]
According to this lining construction method, since the lining pipe is additionally formed with a band-like member newly supplied in front of the lining pipe to be produced, it is possible to produce a long lining pipe.
[0004]
By the way, the belt-shaped member from the unwinding device to the pipe making machine has been properly twisted in advance and is in a state where a spiral ring is formed, but the pipe making machine is rotated. As the lining pipe is formed, the belt-like member is twisted in the opposite direction, and the number of rings decreases. Then, when the pipe making machine is further rotated to form a lining pipe, the ring finally disappears, the number of rings increases in the reverse rotation direction, and the band-like member is finally damaged by torsional stress. .
[0005]
Therefore, it is necessary to feed the strip member so that such a problem does not occur, but in the conventional lining construction method, such a feed operation (that is, the distance to the pipe making machine and the number of rings of the strip member) The operation in which there is a certain relationship) was mainly performed manually.
[0006]
[Problems to be solved by the invention]
As a result, according to this prior art, as the lining pipe becomes longer, the distance between the pipe making machine and the profile supply source becomes larger and the weight of the profile also accumulates. There has been a problem that it becomes difficult to synchronize with the rotation operation and the traveling operation. For this reason, the profile feeding operation lacks smoothness, which is a cause of deterioration in construction efficiency.
[0007]
The present invention was devised to solve such problems, and an object of the present invention is to provide a profile feed synchronous control device capable of smoothly performing a profile feed operation.
[0008]
[Means for Solving the Problems]
In order to solve the above-mentioned problem, the belt-like member feeding synchronous control device according to claim 1 of the present invention is a pipe-making machine that self-propells a long belt-like member having joints formed on both side edges thereof. Continuously supplied and joined together while being spirally wound together to form a spiral tube, and while moving the pipe making machine to the front side of the spiral tube thus formed, In the lining construction in which new spiral pipes are sequentially formed by joining the joining portions that are in contact with each other while spirally winding the belt-like member supplied to the middle of the belt-like member supplied to the pipe making machine A feed drive unit having a feed roller portion for feeding the belt-like member to the pipe making machine, and a feed amount measuring means for measuring the feed amount of the belt-like member fed from the feed drive device to the pipe making machine; The spiral tube A formation length from the formation start end calculated and measured by the formation length acquisition means to the infeed amount measured by the infeed amount measurement means. The feed amount is controlled so that the belt-shaped member is supplied from the feed driving device to the pipe making machine by an amount obtained by adding
[0009]
According to a second aspect of the present invention, there is provided the belt-like member feeding synchronization control device according to the first aspect, wherein the feeding amount measuring means is a protrusion formed on a guide roller that rotates in a circumferential direction of the pipe making machine. And a limit switch attached to a fixed portion that does not rotate. Each time the guide roller rotates once, the limit switch is actuated by the protrusion to count the number of rotations of the guide roller. Is.
[0010]
The belt-like member feeding synchronization control device according to claim 3 of the present invention is the belt member feeding synchronization control device according to claim 1, wherein the feeding amount measuring means is attached to a guide roller rotating in a circumferential direction of the pipe making machine, It is formed by an encoder arranged so that the detection unit contacts the surface of the spiral tube.
[0011]
DETAILED DESCRIPTION OF THE INVENTION
Embodiments of the present invention will be described below with reference to the drawings.
[0012]
FIG. 3 is an explanatory diagram of a lining pipe construction method to which the profile feed synchronous control device of the present invention is applied.
[0013]
A profile supply device 4 in which a long profile (strip-shaped member) 3 with joints formed on both side edges is wound in a roll shape is installed outside the vertical hole 1, and from the profile supply device 4, the vertical hole 1 The profile 3 is continuously supplied into the pipe rod 2 through the tube 2.
[0014]
A feed driving device 5 for supplying the profile 3 supplied from the profile supply device 4 to the self-propelled pipe making machine 6 is installed in the pipe rod 2 near the vertical hole 1.
[0015]
The pipe making machine 6 is arranged in front of the feed driving device 5 in the pipe rod 2 and joins the joining portions that come into contact with each other while winding the profile 3 supplied from the feed driving device 5 in a spiral shape. A tube (spiral tube) 7 is formed. Then, the formed lining pipe 7 is left in place, and the newly joined profile 3 is spirally wound while moving the pipe making machine 6 to the front side of the existing lining pipe 7 and joined together. By joining together, new lining pipes 7 are sequentially added and formed. A self-propelled hydraulic unit 8 is disposed further forward of the pipe making machine 6. The hydraulic unit 8 supplies power required for pipe making to the pipe making machine 6 by a hydraulic hose 9.
[0016]
A power supply carriage 10 is arranged outside the vertical hole 1 located on the front side of the pipe making machine 6. The power supply carriage 10 supplies power to the hydraulic unit 8 and the feed driving device 5 through a power cable 11.
[0017]
FIG. 6 shows an example of the profile 3 used in the lining pipe construction method.
[0018]
The profile 3 has a main body formed in a flat plate shape having a constant thickness, and a plurality (8 in this example) of protruding portions 3a are formed in a plurality of rows at predetermined intervals in the longitudinal direction of the outer surface 3j. . Moreover, the flange 3b is formed in the front-end | tip part of the protruding part 3a. A groove 3c is formed between the adjacent protrusions 3a and 3a. Moreover, the inner surface 3k side is formed substantially smoothly.
[0019]
On both sides of the profile 3, joint portions 3 d and 3 e are formed that are superposed and joined to each other. That is, the protruding portion 3a of the front edge side joint portion 3d is formed with a concave groove portion 3f that is recessed from the inner surface 3k side of the main body to the outer surface 3j side, and the tip portion of the protruding portion 3a of the rear edge side joint portion 3e is It is formed in the bulging part 3g engaged with the recessed groove part 3f.
[0020]
At the time of joining, as shown in FIG. 5B, the leading edge side joining portion 3d and the trailing edge side joining portion 3e of the adjacent profiles 3 and 3 overlap each other, and the trailing edge side joining portion 3e overlaps the concave groove portion 3f of the leading edge side joining portion 3d. The bulging portion 3g is fitted and joined.
[0021]
FIG. 7 is a side view including a partial cross section showing a schematic structure of the feed driving device 5.
[0022]
The feed drive device 5 has a double structure of a pedestal 51, a support frame 52 erected at the rear part of the pedestal 51, an inner cylinder 53a as a stator and an outer cylinder 53b as a rotor attached to the support frame 52. The main part is composed of a rotating cylindrical part 53, a driving part 54 for rotationally driving an outer cylinder 53b of the rotating cylindrical part 53, and a feed mechanism part 55 that rotates integrally with the outer cylinder 53b of the rotating cylindrical part 53. ing.
[0023]
Although not shown, the inner cylinder 53a of the rotating cylindrical portion 53 has an inflow groove and a discharge groove for working fluid (oil) formed independently of each other, and is rotatably fitted in the inner cylinder 53a. Although not shown, the outer cylinder 53b is provided with inflow holes and discharge holes at positions corresponding to the inflow grooves and the discharge grooves of the inner cylinder 53a, respectively, in order to exchange the working fluid. ing. The inner cylinder 53a and the outer cylinder 53b are provided with rotating bearings (not shown) in the front and rear in order to smooth the rotation.
[0024]
The rotation drive unit 54 is attached to the outer periphery of the front end of the outer cylinder 53b of the rotation cylinder unit 53, and has a large-diameter gear plate 54a having gear teeth 54b formed on the outer periphery, and rotatably supports the gear plate 54a. A guide gear 54c meshing with the gear teeth 54b of the gear plate 54a and a hydraulic motor 54d interlocked with the guide gear 54c are configured.
[0025]
The feed mechanism portion 55 includes an attachment portion 55a attached to the front end of the outer cylinder 53b of the rotary cylinder portion 53, a frame body 55b removably attached to the attachment portion 55a, and a rotation shaft held by the frame body 55b. A feed roller portion 55e composed of a combination of an inner surface roller 55c and an outer surface roller 55d, a gear mechanism portion (not shown) interlocked with the rotation shafts 66 and 67 of the inner surface roller 55c and the outer surface roller 55d, and an upper portion of the frame 55b The hydraulic motor 55f is attached and is driven to rotate the inner roller 55c and the outer roller 55d in opposite directions (indicated by arrows in the drawing) in conjunction with the gear mechanism.
[0026]
The feed roller portion 55e is arranged with a predetermined interval so that the inner roller 55c and the outer roller 55d are arranged opposite to each other in the tube axis direction Y, and the profile 3 is sandwiched between the rollers 55c and 55d. Is done. That is, one surface (surface) of the profile 3 (not shown in FIG. 7) is brought into close contact with the inner surface roller 55c and is pressed from the outside (lower side in FIG. 7) by the outer surface roller 55d.
[0027]
The outer roller 55d has a plurality of ring-shaped flange portions 55h formed at a predetermined interval in the cylindrical main body 55g. These ring-shaped flange portions 55h are fitted into the groove portions 3c between the adjacent protruding portions 3a and 3a of the profile 3, and the outer surface of the cylindrical main body 55g is pressed against the outer surface of the protruding portion 3a of the profile 3. In addition, the outer surface of the cylindrical main body 55g is knurled to prevent slipping with the profile 3.
[0028]
FIG. 4 is a schematic configuration diagram of the pipe making machine 6 as viewed from the front.
[0029]
The pipe making machine 6 includes an annular molding frame 61, a plurality of guide rollers 62, 62... Disposed at a predetermined interval on the outer periphery of the molding frame 61, and the molding frame 61. It is comprised by the joining mechanism part 63 attached so that the movement to the circumferential direction was possible along the opening edge of one end, and the joining mechanism part 63 was comprised by the inner surface roller 63a and the outer surface roller 63b which clamp the profile 3. ing. The joining mechanism section 63 is configured to drive the inner roller 63a and the outer roller 63b in opposite directions by the hydraulic motor of the hydraulic unit 8. Although not shown, the outer surface roller 63b is formed with a ring-shaped collar portion on the cylindrical main body like the outer surface roller 55d of the feed roller portion 55e, and the protruding portion 3a adjacent to the profile 3 is formed. , 3a is fitted into the groove 3c.
[0030]
That is, the pipe making machine 6 spirally winds the profile 3 supplied continuously around the guide rollers 62, 62... And the joints 3d, 3e at the side edges where the profile 3 contacts. Are joined to each other by the joining mechanism 63 (see FIG. 6B), and the lining pipe 7 is formed. At this time, the joining mechanism portion 63 forms the lining pipe 7 while moving in the circumferential direction along one edge of the molding frame 61, so that the pipe making machine 6 is disposed on the front side of the formed lining pipe 7. While moving, the newly supplied profile 3 is spirally wound to newly add new lining pipes 7.
[0031]
Next, the construction work of the lining pipe will be described.
[0032]
The profile 3 is drawn into the vertical hole 1, and the profile 3 is manually wound several times (about three times) in the vertical hole 1 to form a lining pipe (this is called a starting lining pipe) 7a. Then, the pipe making machine 6 is incorporated inside the starting lining pipe 7a, and the joining mechanism portion 63 of the pipe making machine 6 is installed in a predetermined state at the front edge of the starting lining pipe 7a. That is, the inner surface roller 63a and the outer surface roller 63b of the joining mechanism portion 63 are arranged at the joining portion of the starting lining pipe 7a.
[0033]
Thereafter, the hydraulic motor of the hydraulic unit 8 is operated to rotate and drive the inner surface roller 63a and the outer surface roller 63b of the joining mechanism 63 in opposite directions, and newly supply with the clamping force between the inner surface roller 63a and the outer surface roller 63b. The adjacent joint portions 3d and 3e of the profile 3 to be formed are joined while being polymerized inside and outside.
[0034]
At the same time, due to the engagement guide action between the ring-shaped flange portion of the outer surface roller 63b and the groove portion 3c of the profile 3, the pipe making machine 6 revolves the joining mechanism portion 63 in the pipe circumferential direction of the lining pipe 7 to be formed, and The whole advances in the tube axis direction.
[0035]
In this step, the profile 3 is sequentially supplied from a profile supply device 4 installed on the ground. As shown in FIG. 3, an example of the configuration of the profile supply device 4 is such that a turntable 43 is rotatably arranged on a circular rail 41 via a trochanter 42, and the profile 3 is attached to the turntable 43. A winding body 44 wound so as to be able to be fed out is supported. Thereby, the rotation on the horizontal plane of the turntable 43 along the circular rail 41 and the rotation on the vertical plane of the winding drum portion 44 are combined.
[0036]
In other words, the profile 3 causes torsional rotation along with the pipe making operation, but the profile supply device 4 rotates the turntable 43 in synchronization with this torsional rotation.
[0037]
When the lining pipe 7 reaches a certain length, the feed driving device 5 is installed in the vertical hole 1. At this time, the profile 3 is inserted into the inner cylinder 53a of the feed driving device 5, and is inserted and sandwiched between the inner surface roller 55c and the outer surface roller 55d of the feed mechanism portion 55.
[0038]
Thereafter, the pipe making machine 6 is driven again and the feed driving device 5 is driven.
[0039]
The feed drive device 5 transmits the rotation of the hydraulic motor 54d of the rotation drive unit 54 to the outer cylinder 53b of the rotary cylinder part 53 via the guide gear 54c and the gear plate 54a, and is a feed integrally attached to the outer cylinder 53b. The mechanism unit 55 is rotated. The rotation of the hydraulic motor 55f of the feed mechanism 55 is transmitted to the inner roller 55c and the outer roller 55d via a gear mechanism (not shown), and rotates the inner roller 55c and the outer roller 55d in opposite directions. The profile 3 is sandwiched between the inner surface roller 55c and the outer surface roller 55d and fed to the front Y, and the feed mechanism portion 55 itself rotates, whereby torsional rotation is imparted.
[0040]
Next, the profile feed synchronous control apparatus of the present invention applied to the lining pipe construction method having the above configuration will be described.
[0041]
FIG. 1 is a block diagram showing an electrical configuration of a profile sending synchronization control apparatus according to an embodiment of the present invention.
[0042]
An output of a limit switch 65 to be described later is guided to the counter 21, and an output of the counter 21 is guided to a lining pipe tube production amount calculation unit (feed amount measuring means) 22. In addition, the output of the lining pipe diameter setting / storage unit 24 that stores the diameter R of the lining pipe 7 in advance is led to the lining pipe production amount calculation unit 22.
[0043]
Further, the output of the lining pipe pipe production amount calculation unit 22 is guided to the pipe production length calculation unit (formation length acquisition means) 23, and the pipe production length calculation unit 23 outputs the output of the lining pipe diameter setting / storage unit 24. And the output of the profile width setting / storage unit 25 that stores the width W of the profile 3 in advance.
[0044]
Further, the profile feed amount calculation unit 26 is guided with the output of the lining pipe pipe production amount calculation unit 22 and the output of the pipe production length calculation unit 23, and the output of the profile feed amount calculation unit 26 is the profile feed roller control. Guided to section 27. In accordance with a control signal from the profile feed roller control unit 27, the rotational drive of the feed roller unit 55e (the inner roller unit 55c and the outer roller unit 55d) of the feed mechanism unit 55 is controlled.
[0045]
As shown in FIG. 4, the limit switch 65 is attached to a molding frame 61 that does not rotate, and a protrusion 64 is provided on the joint mechanism 63 that faces the limit switch 65 so as to come into contact with the limit switch 65 to be turned on. It has been. That is, every time the joining mechanism 63 rotates once, the protrusion 64 turns on the limit switch 65, and the counter 21 that operates in conjunction with the limit switch counts the rotation speed T.
[0046]
The lining pipe manufacturing pipe quantity calculation unit 22 is based on the rotational speed T obtained from the counter 21 and the diameter R of the lining pipe 7 stored in the lining pipe diameter setting / storage unit 24 according to the following equation (1). A profile amount Ps required for pipe making is calculated.
[0047]
[Expression 1]
Ps = T · R · π (1)
The pipe manufacturing length calculation unit 23 includes the profile amount Ps obtained from the lining pipe manufacturing amount calculation unit 22, the diameter R of the lining pipe 7 stored in the lining pipe diameter setting / storage unit 24, and the profile width setting / storage. Based on the width W of the profile 3 stored in the section 25, the lining pipe length L produced by the following equation (2) is calculated.
[0048]
[Expression 2]
L = [Ps / (R · π)] · W (2)
The profile feed amount calculator 26 calculates the profile feed amount according to the following equation (3) based on the profile amount Ps calculated by the lining pipe tube manufacture amount calculator 22 and the lining tube length L calculated by the tube length calculator 23. PL is calculated.
[0049]
[Equation 3]
PL = Ps + L (3)
The profile feed roller control unit 27 controls the inner surface roller 55c and the outer surface roller 55d of the feed mechanism unit 55 according to the calculated profile feed amount PL, and newly supplies the profile 3 by the amount of PL. In this case, as the distance from the feed driving device 5 to the pipe making machine 6 becomes longer, it is necessary to increase the number of rings (the number of spirals) of the profile 3 therebetween. Rotation control is also performed so that the feed mechanism section 55 of the drive device 5 rotates five times.
[0050]
The profile feed amount PL may have an error as long as there is no influence on construction. Further, the feeding of the profile 3 is not necessarily performed continuously. After a certain amount of the lining pipe 7 is formed, the feeding amount PL required for forming the lining pipe 7 may be intermittently supplied. .
[0051]
In the above embodiment, the rotation number T is counted by the engagement between the limit switch 65 attached to the molding frame 61 and the protrusion 64 provided on the joining mechanism portion 63. A timer that operates in conjunction with a switch for operating a pipe making motor (not shown) of the pipe making machine 6 is provided, and by measuring the operating time of the pipe making motor by this timer, the rotation speed T is calculated from the operating time, Thereafter, the profile amount Ps required for pipe making may be calculated by the above equation (1).
[0052]
When the pipe making motor is a hydraulic motor, a pressure sensor may be attached to the hydraulic pressure transmission portion, and the operation time may be calculated from the pressure value.
[0053]
FIG. 2 is a block diagram showing an electrical configuration of a profile sending synchronization control apparatus according to another embodiment of the present invention.
[0054]
In this embodiment, the output of an encoder 67, which will be described later, is exactly the same as the block configuration shown in FIG.
[0055]
As shown in FIG. 5, the encoder 67 is attached to a joining mechanism portion 63 that is attached so as to be movable in the circumferential direction along one end opening edge of the molding frame 61 (shown in a slightly separated state in the drawing). ), And the detector is disposed so as to contact the surface of the formed lining tube 7. Therefore, the encoder 67 outputs a signal corresponding to the profile amount required for pipe manufacturing to the lining pipe pipe manufacturing amount calculation unit 22. Based on the signal from the encoder 67, the lining pipe pipe production quantity calculation unit 22 calculates the profile quantity Ps required for pipe production.
[0056]
Since the subsequent processing is exactly the same as that of the profile sending synchronization control apparatus shown in FIG. 1, detailed description thereof is omitted here.
[0057]
The encoder 67 is not necessarily installed on the surface (outer surface) of the lining pipe 7, but may be installed on the inner surface side or in a motor that is driven according to pipe making.
[0058]
【The invention's effect】
In the profile feed synchronous control device of the present invention, a feed driving device having a feed roller portion for feeding the belt-like member to the pipe making machine is arranged in the middle of the belt-like member supplied to the pipe making machine. A feed amount measuring means for measuring the feed amount of the belt-shaped member sent to the pipe making machine; and a formation length acquiring means for obtaining the formation length from the formation start end of the spiral tube by calculation or measurement, and is measured by the feed amount measuring means. The feed amount is controlled so that the belt-shaped member is supplied from the feed driving device to the pipe making machine by the amount obtained by adding the formation length from the formation start end calculated or measured by the formation length acquisition means to the infeed amount. Yes. For this reason, even when the spiral tube becomes long, the feeding of the belt-shaped member is synchronized with the rotating operation and the traveling operation of the pipe making machine, so that the feeding operation of the belt-shaped member can be performed smoothly. Further, even a small-diameter pipe rod that cannot be accessed by a person can synchronize the feed driving device and the pipe making machine, thereby enabling unattended operation.
[Brief description of the drawings]
FIG. 1 is a block diagram showing an electrical configuration of a profile sending synchronization control apparatus according to an embodiment of the present invention.
FIG. 2 is a block diagram showing an electrical configuration of a profile sending synchronization control apparatus according to another embodiment of the present invention.
FIG. 3 is an explanatory diagram of a lining pipe construction method to which the profile feed synchronous control device of the present invention is applied.
FIG. 4 is a schematic configuration diagram of the pipe making machine viewed from the front.
FIG. 5 is a schematic configuration diagram of the pipe making machine viewed from the front.
6A and 6B show an example of a profile used in a lining pipe construction method, where FIG. 6A is an end view of the profile, and FIG. 6B is an end view showing a state in which adjacent joint portions of the profile are joined together. .
FIG. 7 is a side view including a partial cross section showing a schematic structure of the feed driving device.
[Explanation of symbols]
3 Profile 4 Profile supply device 5 Feed drive device 6 Pipe making machine 7 Lining tube (spiral tube)
3d Leading edge side joining portion 3e Trailing edge side joining portion 21 Counter 22 Pipeline pipe volume calculation unit (feed amount measuring means)
23 Pipe length calculation unit (formation length acquisition means)
26 Profile feed amount calculation section 27 Profile feed roller control section 61 Molding frame 63 Joining mechanism section 63a Inner surface roller 63b Outer surface roller 64 Projection section 65 Limit switch 67 Encoder

Claims (3)

Continuously supply a long belt-like member with joints formed on both side edges to a pipe making machine that is self-propelled in the tube so that the joints that are in contact with each other while being spirally wound are joined together. A spiral tube is formed, and the joint portions that are in contact with each other are joined while spirally winding a newly supplied belt-like member while moving the pipe making machine to the front side of the spiral tube thus formed. In the lining construction to add and form new spiral tubes sequentially,
In the middle of the belt-shaped member supplied to the pipe making machine, a feed driving device having a feed roller portion for feeding the belt-like member to the pipe making machine is disposed, and the belt-like shape fed from the feed driving device to the pipe making machine A feed amount measuring means for measuring the feed amount of the member, and a formation length obtaining means for obtaining a formation length from the formation start end of the spiral tube by calculation or measurement,
A belt-like member is supplied from the feed driving device to the pipe making machine by an amount obtained by adding the formation length from the formation start end calculated or measured by the formation length acquisition means to the infeed amount measured by the infeed amount measurement means. The belt-like member feed synchronous control device according to claim 1, wherein the feed amount is controlled as described above. The feeding amount measuring means is formed by a protrusion formed on a guide roller that rotates in a circumferential direction of the pipe making machine and a limit switch attached to a fixed portion that does not rotate, and the guide roller rotates once. 2. The belt-like member feed synchronous control device according to claim 1, wherein the rotation speed of the guide roller is counted by operating the limit switch by the protrusion. The feeding amount measuring means is formed by an encoder that is attached to a guide roller that rotates in a circumferential direction of the pipe making machine and that is arranged so that a detection unit contacts the surface of the spiral pipe. The belt-shaped member feeding synchronous control device according to claim 1.

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