JP2008138389A - Accumulator of wire reeling equipment - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an accumulator of wire reeling equipment, which can prevent the occurrence of the slackness of a wire or the application of an unreasonable force to the wire, even if a difference is made between the speed of the unwinding of the wire to be unwound from an uncoiler, and the speed of the winding of the wire to be wound by a winding/unwinding device, which enables the continuous performance of a smooth operation, and which can also adapt to the need for the speeding-up of the operation. <P>SOLUTION: A fixed sheave 34 and a movable sheave 35 are arranged on a tower body 29 which is erected between the uncoiler 16 and a tension imparting device 19. The wire 1, which is unwound upward from a random coil 2, runs between the fixed sheave 34 and the movable sheave 35 a plurality of times, and is sent out to the side of the tension imparting device 19 from the fixed sheave 34. Thus, a fluctuation in the length of the wire 1, which is caused by the difference between the speed of the unwinding of the wire 1 to be unwound from the uncoiler 16, and the speed of the winding of the wire 1 to be wound by the winding/unwinding device 18, is absorbed by the ascending and descending motion of the movable sheave 35. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to an accumulator device for wire reeling equipment for pre-aligning and winding a wire wound on a run winding coil on a winding reel when a suspension bridge cable is installed by an air spinning method. is there.

  Conventionally, when installing a suspension bridge cable by the air spinning method, first, the wire for suspension bridge cable (wire of galvanized steel wire) is wound in a run-wound state in a factory or at the construction site. Wire reeling is performed in which the wire is unwound and re-wound so as to be aligned with the winding reel and to be in the required squeezed state. The run-wound coil is formed in a cylindrical shape by hanging around a vertical center guide so as to circulate a wire from the upper part and laminating from the lower part upward. Since the run coil is wound in a rough state as described above, even if the wire is unwound from the run coil and an attempt is made to construct the suspension bridge cable by the air spinning method, the unwinding of the wire is not stable, In order to cause problems such as catching, wire reeling is performed to rewind around the winding reel.

  4 and 5 show an example of a conventional wire reeling facility provided at a construction site of a suspension bridge. As described above, the run-wound coil 2 wound in the run-wound state is used by using a crane or a wrecker. Set against undriven uncoiler 3 of wire reeling equipment. The uncoiler 3 has a guide 3b in the upper center of a turntable 3a that can freely rotate about a vertical axis, and the cylindrical run-wound coil 2 has a central opening fitted into the guide 3b. Set. Next, the wire 1 is unwound from the run winding coil 2 set on the uncoiler 3 and one of the winding reels 6a and 6b provided in the winding / unwinding device 5 via the tension applying device 4 (in FIG. The tip of the wire 1 is set on the winding reel 6a), and the winding reel 6a of the winding / unwinding device 5 is driven by the winding drive device 15 to rotate the uncoiler 3 via the tension applying device 4. The wire 1 drawn out from the side portion of the run-wound coil 2 is taken up in a necessary amount aligned state by one of the winding reels 6a.

  When the suspension bridge cable is installed by the air spinning method, the wire 1 drawn out from the other winding reel 6b that has already finished the aligned winding of the wire 1 by the wire reeling equipment is used as the strand tension tower in FIG. 7, the wire sheave 8, the strand guide roller 9, the spinning wheel 10, and the strand shoe 12 attached to the strand adjusting device 11 are sequentially hooked to temporarily fix the tip of the wire 1 to the anchor 13. By applying a braking operation to the rotation of the winding reel 6b of the winding / unwinding device 5 while observing the vertical movement, the winding / unwinding is performed at the driving speed of the rope driving device 14, that is, the construction speed of the spinning wheel 10. Unwinding is performed by following the feeding speed of the winding reel 6b in the apparatus 5, and then the winding of the wires 1 is completed during this time. And configured to perform the Ang ring work by one of Seimaki reel 6a, it had to unwind Seimaki reel 6a, 6b of alternately.

In addition, as a conventional apparatus of the above-mentioned wire reeling equipment, there exists a thing as shown, for example in patent document 1. FIG.
Japanese Patent Laid-Open No. 51-52636

  However, the conventional wire reeling equipment as disclosed in Patent Document 1 has the following various problems.

  That is, the run-wound coil 2 is obtained by winding the wire 1 so as to drop from the upper side to the lower side, and is set on the uncoiler 3 so that its axis is vertical. When unwinding 2, the wire 1 is unwound from the side of the uncoiler 3 in a tangential direction, that is, in a substantially horizontal direction. In some cases, the wire 1 is caught by being drawn and drawn, and the wire 1 is caught. This causes a problem that the wire 1 cannot be unwound. When the unwinding of the wire 1 becomes impossible in this way, it is necessary to stop the winding / unwinding device 5 and to loosen the wire 1 that is caught by the run winding coil 2 so that it can be wound again. However, there was a problem that the recovery work for this was very difficult and time consuming. Moreover, when the wire 1 is forcibly pulled and squeezed, there is a possibility that the coating such as zinc plating on the surface may be peeled off.

  In addition, when the wire 1 is being taken up by one winding reel 6a of the winding / unwinding device 5, if the driving of the winding reel 6a is suddenly stopped, it rotates following. Since the run-wound coil 2 is heavy and continues to rotate due to inertia, the wire 1 is undesirably unwound from the run-wound coil 2, and even in this case, the restoration work is very difficult and takes time. Had.

  In order to prevent the occurrence of the trouble described above, the actual winding speed by the conventional wire reeling equipment has been limited to about 200 to 250 m / min.

  On the other hand, when suspending a suspension bridge cable by the air spinning method, the wire 1 is generally unwound so as to maintain an erection speed of about 150 to 200 m / min, and the tension acting on the wire 1 during this erection is 70. ˜100 kgf (≈70 × 9.8 to 100 × 9.8 N). Therefore, in the conventional wire reeling equipment, the wire is maintained so as to maintain a tension of about 70 to 100 kgf (≈70 × 9.8 to 100 × 9.8 N), which is substantially equivalent to that of the suspension bridge cable. 1 is being wound.

  And according to the said conventional wire reeling equipment, the wire 1 is wound up by the winding speed of about 200-250 m / min with one winding reel 6a with which two winding / unwinding apparatuses 5 were equipped. Sometimes, the wire 1 is unwound by the other winding reel 6b, so that the wire 1 is continuously fed out in accordance with the construction speed of the suspension bridge cable constructed around 150 to 200 m / min. Can be supplied.

  However, in recent years, it has been studied to increase the erection speed of the suspension bridge cable to around 400 m / min. If the erection speed is increased in this way, the wire reeling equipment that cannot increase the winding speed as in the past. Then, winding is not in time, and it is necessary to install a plurality of wire reeling equipments for this reason, and there is a problem that equipment costs increase.

  In view of such circumstances, the present invention provides a wire even if a difference occurs between the winding speed of the wire wound from the uncoiler and the winding speed of the wire wound by the winding / unwinding device. Providing an accumulator device for wire reeling equipment that can prevent slack or excessive force, enable smooth operation continuously, and respond to demands for high-speed operation It is something to try.

The present invention unwinds a wire upward from a run-wound coil that is set so that its axis is perpendicular to a rotationally driven uncoiler, and aligns the unwound wire with a winding reel of a winding / unwinding device. An accumulator device for a wire reeling facility,
A tower main body is erected between the uncoiler and the winding / unwinding device, and a fixed sheave is fixedly arranged at the top of the tower main body, and a moving sheave is arranged in the tower main body so as to be movable up and down, From the uncoiler, the wire wound upward from the run winding coil set in the uncoiler is wound around the fixed sheave and the moving sheave a plurality of times, and sent out from the fixed sheave to the winding / unwinding device side. The length of the wire generated between the uncoiler and the winding / unwinding device due to the difference between the unwinding speed of the wire being unwound and the winding speed of the wire being wound on the winding / unwinding device. The present invention is directed to an accumulator device for a wire reeling facility, which is configured to absorb fluctuations by moving up and down the moving sheave.

  According to the above means, the following operation can be obtained.

  The diameter of the run winding coil and the diameter of the winding reel change as the winding progresses, and the winding speed of the wire wound from the uncoiler is the winding speed of the wire wound around the winding / unwinding device. If it is slower, the dynamic sheave rises, and if the winding speed of the wire that is unwound from the uncoiler is higher than the winding speed of the wire that is wound on the winding / unwinding device, When the moving sheave descends and the moving sheave moves up and down, the uncoiler is brought into contact with the difference between the unwinding speed of the wire unwound from the uncoiler and the winding speed of the wire wound up by the winding / unwinding device. Fluctuations between the wire and the winding / unwinding device are absorbed, so problems such as being caught when the wire is loosened or conversely forcing the wire It is possible to stop.

In the accumulator device of the wire reeling equipment, a position detection sensor for detecting an upper limit position and a lower limit position of the moving sheave,
In a state where the wire is wound at a constant winding speed by the winding / unwinding device, the position of the dynamic sheave detected by the position detection sensor is positioned between the upper limit position and the lower limit position. When the unwinder controls the unwinding speed of the wire and the position of the moving sheave detected by the position detection sensor exceeds the upper limit position or lower limit position, the unwinder unwinds the wire and winds / unwinds. A wire length control device for stopping winding of the wire by the device, and in this way, when the position detection sensor is activated by raising the moving sheave to the upper limit position, Since the unwinding is insufficient, control is performed to increase the unwinding speed, while the moving sheave is lowered to the lower limit position. When the position detection sensor is activated, the uncoiler unwinds the wire, so control is performed to reduce the unwinding speed, and the position of the moving sheave is within the upper limit position or lower limit position range. The wire length control device stops the unwinding of the wire by the uncoiler and the winding of the wire by the winding / unwinding device, thereby stopping the work without causing the wire to become slack. As a result, the restoration work can be easily performed.

  In the accumulator device of the wire reeling equipment, the tension of the wire upstream of the winding / unwinding device can be adjusted by the weight of the moving sheave.

  According to the accumulator device of the wire reeling equipment of the present invention, it is assumed that there is a difference between the winding speed of the wire wound from the uncoiler and the winding speed of the wire wound by the winding / unwinding device. However, it is possible to prevent the wire from being slackened or being subjected to excessive force, to perform smooth operation continuously, and to meet the demand for higher speed operation. Can play.

  Embodiments of the present invention will be described below with reference to the accompanying drawings.

  FIGS. 1 to 3 show an example of an embodiment of the present invention. As shown in FIGS. 1 and 2, the wire reeling equipment is equipped with a run-wound coil 2 around which a wire 1 is wound and the wire 1 is installed. An uncoiler 16 that performs unwinding, an accumulator device 17 that guides the wire 1 from the uncoiler 16 to unwind upward, and absorbs fluctuations in the length of the wire 1, and the accumulator device The wire 1 from 17 is wound around one of the two winding reels 6a and 6b and wound into an aligned state by driving of the winding driving device 15, and at the same time, the other winding reel 6b. A winding / unwinding device 18 configured to wind the wire 1 wound around the wire 1 for the construction of a suspension bridge cable, and a winding reel 6a of the winding / unwinding device 18 And a tensioning device 19 for adding tension to the wire 1 to be wound in 6b. In the figure, reference numeral 20 denotes a wire 1 wound around the winding reels 6a and 6b of the winding / unwinding device 18 and slides in the width direction of the winding reels 6a and 6b, thereby winding in an aligned state. It is a guide device for performing.

  The uncoiler 16 includes a horizontal rotating unit 21 that horizontally rotates while holding the run-wound coil 2 so that the axis of the run-wound coil 2 is vertical, and an unwinding drive device 22 that rotationally drives the horizontal rotating unit 21. It is configured. Further, a guide 21 a for guiding the wire 1 drawn upward from the run-wound coil 2 so as to be wound in the outer circumferential direction of the run-wound coil 2 is detachable on the axial center part of the horizontal rotating part 21. Is provided. The uncoiler 16 drives the unwinding drive device 22 to unwind the wire 1 from the run winding coil 2, and drives the winding drive device 15 to adjust the winding reels 6a of the winding / unwinding device 18. The operation of winding the wire 1 by 6b is performed simultaneously.

  The tension applying device 19 for applying tension to the wire 1 wound around the winding reels 6a and 6b of the winding / unwinding device 18 hangs the wire 1 between the spaced winding sheaves 23 and 24 at least once. Friction force increasing means 25 that rotates to increase the frictional force and the rotation of the brake disk 26 provided in the winding sheave 24 are braked by the pressing force of the brake shoe 27 that is actuated by the braking actuator 27a, and the winding reel 6a , 6b, and tension adjusting means 28 for adjusting the tension of the wire 1 wound up.

  Further, the accumulator device 17 provided between the uncoiler 16 and the tension applying device 19 includes a tower main body 29 having a required height, and extends to the top of the uncoiler 16 at the upper end of the tower main body 29. A gantry 30 is provided, and a conduit 32 provided at the upper end of a bowl-shaped guide cone 31 having a conical shape is fixed to the lower surface of the tip of the gantry 30. Further, a turning sheave 33 is provided above the tip of the pedestal 30. Further, a fixed sheave rotating with a plurality of (five strips in the example of FIG. 3) guide grooves 34a at the top of the tower body 29. 34 is fixed. The tip of the wire 1 unwound upward from the run coil 2 of the uncoiler 16 is guided from the conduit 32 to the turning sheave 33 through the inside of the guide cone 31, and then guided to the fixed sheave 34. The fixed sheave 34 and the moving sheave 35 provided with a plurality of guide grooves 35a (four in the example of FIG. 3) as in the fixed sheave 34 are hung a plurality of times, whereby the moving sheave 35 is placed in the tower body 29. The space 36 is hung up and down freely. At this time, a weight 37 is attached to the moving sheave 35 as necessary, and the tension of the wire 1 on the upstream side of the tension applying device 19 is adjusted by the weight of the weight 37 and the moving sheave 35. It is also possible to adjust the tension of the wire 1 upstream of the tension applying device 19 with the weight of only the moving sheave 35 without providing the weight 37.

  Thereby, the accumulator device 17 is connected to the uncoiler 16 according to the difference between the unwinding speed of the wire 1 unwound from the uncoiler 16 and the unwinding speed of the wire 1 wound around the winding / unwinding device 18. Variations in the length of the wire 1 occurring between the tension applying device 19 and the moving sheave 35 are absorbed.

  The tip of the wire 1 led out from the fixed sheave 34 of the accumulator device 17 is wound at least once between the winding sheaves 23 and 24 of the tension applying device 19 and then the winding reel of the winding / unwinding device 18. It winds around one of 6a, 6b.

  On the other hand, in the wire reeling equipment described above, as shown in FIG. 1, the pressure roller 39 is pressed against the wire 1 between the tension applying device 19 and the winding / unwinding device 18 and the reaction force is measured. Thus, a tension meter 40 is provided so as to detect the tension of the wire 1 wound by the winding / unwinding device 18, and the tension applying device so that the detected tension 41 by the tension meter 40 becomes the tension set value 42. 19 is provided with a tension control device 43 for controlling the brake actuator 27a of the tension adjusting means 28.

  Further, the accumulator device 17 is provided with a position detection sensor for detecting the upper limit position A and the lower limit position B of the moving sheave 35. That is, an upper limit switch 45a that operates when the striker 44 provided on the moving sheave 35 moves to an upper portion of a predetermined height, and a lower limit switch 45b that operates when the striker 44 provided on the moving sheave 35 moves to a lower portion of a predetermined height. Are attached to the tower main body 29 to constitute the position detection sensor 45. Furthermore, in the state where the wire 1 is being wound at a constant winding speed by the winding / unwinding device 18, the height position of the moving sheave 35 detected by the position detection sensor 45 is the upper limit position A and the lower limit position. A wire length control device 46 for controlling the driving of the unwinding drive device 22 of the uncoiler 16 is provided so as to be always located between the wire B and the wire B. That is, when the upper limit switch 45a is actuated by moving the moving sheave 35 up and down, the uncoiler 16 is insufficient to unwind the wire 1, so that the unwinding speed of the unwinding drive device 22 is controlled to be increased. When the lower limit switch 45b is actuated by moving the moving sheave 35 up and down, the uncoiler 16 unwinds the wire 1 so that the unwinding speed by the unwinding drive device 22 is controlled to be reduced. I am doing so.

  The wire length control device 46 unwinds the wire 1 by the uncoiler 16 as an emergency state when the position of the moving sheave 35 of the accumulator device 17 does not return beyond the range of the upper limit position A or the lower limit position B. And the control which stops winding of the wire 1 by the winding / unwinding device 18 is performed. At this time, an emergency detection switch may be provided above the upper limit switch 45a and below the lower limit switch 45b to detect an emergency.

  Next, the operation of the illustrated example will be described.

  A tubular run coil 2 is formed by winding a wire 1 for a suspension bridge cable (a galvanized steel wire) in a run winding state at a factory or a construction site. The axis is set vertically to the horizontal rotating part 21 of the uncoiler 16 of the wire reeling equipment installed at the construction site of the suspension bridge by a tow truck or the like, and the guide 21a is mounted on the upper part of the axial center part of the horizontal rotating part 21. .

  The wire 1 is unwound from the outer periphery of the run-wound coil 2, and the tip of the wire 1 is guided from the conduit 32 to the turning sheave 33 through the inside of the guide cone 31 provided in the accumulator device 17, and then to the fixed sheave 34. The moving sheave 35 is hung in the space 36 of the tower main body 29 by being guided between the fixed sheave 34 and the moving sheave 35 a plurality of times, and the tip of the wire 1 led out from the fixed sheave 34 is attached to the tension applying device 19. Is wound at least once between the winding sheaves 23 and 24, that is, after being wound around the winding sheave 24 by 180 °, and then wound around the winding sheave 23 by 180 °, and subsequently, the winding / unwinding device 18 is wound. One of the reels 6a and 6b, for example, a winding reel 6a is wound. At this time, the position of the moving sheave 35 suspended from the fixed sheave 34 of the accumulator device 17 is adjusted so as to be positioned between the upper limit position A and the lower limit position B by the position detection sensor 45.

  From this state, the winding drive device 22 of the uncoiler 16 is driven to wind the wire 1 from the run winding coil 2, and the winding drive device 15 of the winding / unwinding device 18 is driven to adjust the winding reel. The winding operation of the wire 1 is started by simultaneously performing the operation of winding the wire 1 with 6a. At this time, the tension of the wire 1 wound around the winding reel 6a of the winding / unwinding device 18 is detected by the tension meter 40, and the detected tension 41 is input to the tension control device 43. Controls the tension adjusting means 28 of the tension applying device 19 so that the detected tension 41 becomes the tension set value 42. Thereby, the tension of the wire 1 wound around the winding reel 6a of the winding / unwinding device 18 is, for example, 130 kgf or more so as to correspond to the increase in tension when the suspension bridge cable is installed by the air spinning method. A stable winding operation can be performed in a state where the tension is maintained at an arbitrary high tension set value 42 of 150 kgf or more.

  As described above, the tension of the wire 1 wound up by the winding / unwinding device 18 is adjusted to 130 kgf or more by the tension applying device 19, and the run winding coil 2 of the uncoiler 16 is rotationally driven by the winding drive device 22. Since the unwinding of the wire 1 is assisted, the tension of the wire 1 between the tension applying device 19 and the uncoiler 16 can be stably held at a low value of about 10 to 30 kgf, for example. Thus, by reducing the tension acting on the wire 1 to be unwound from the run-wound coil 2 and unwinding the wire 1 from the run-wound coil 2, the run-wound coil 2 is wound and the wire 1 is It is possible to reliably prevent the occurrence of a problem such as being caught. Therefore, as the construction speed for constructing the suspension bridge cable by the air spinning method is increased, the winding speed of the wire 1 by the winding / unwinding device 18 is increased to 300 m. Even if it is performed at a high speed of not less than / min or 400 m / min or more, a stable winding operation can be performed without causing a problem that the wire 1 is caught. Further, in the above case, when the wire 1 is simply pulled upward from the horizontal run-wound coil 2 and unwound, the wire 1 is caught when the wire 1 is greatly distorted and bent due to twisting. However, since the unwinding drive device 22 drives the run coil 2 horizontally in the unwinding direction to assist unwinding of the wire 1, for example, a thick wire 1 such as 5 mm or more or 7 mm or more is used. Even so, it is possible to prevent the problem of being caught by twisting.

  On the other hand, the diameter of the run coil 2 and the diameter of the winding reel 6a change as the winding proceeds, and the winding speed of the wire 1 unwound from the uncoiler 16 is wound around the winding / unwinding device 18. When the winding speed of the wire 1 to be taken is slower, the moving sheave 35 of the accumulator device 17 is raised, and the winding speed of the wire 1 unwound from the uncoiler 16 is set to the winding / unwinding device 18. When the winding speed of the wire 1 being wound on the wire 1 is higher than the winding speed of the moving sheave 35 of the accumulator device 17, the moving sheave 35 of the accumulator device 17 moves up and down to move the wire 1 unwound from the uncoiler 16. Between the uncoiler 16 and the tension applying device 19 in accordance with the difference between the unwinding speed of the wire 1 and the winding speed of the wire 1 wound on the winding / unwinding device 18. Jill the variation in length of the wire 1 is absorbed, it is possible to prevent that, as the wire 1 in problems or reverse such caught by the wire 1 slackens is pulled forcibly.

  When the upper limit switch 45a is actuated by raising the moving sheave 35, the uncoiler 16 is insufficient to unwind the wire 1, and therefore control is performed to increase the unwinding speed by the unwinding drive device 22. On the other hand, when the lower limit switch 45b is actuated by lowering the moving sheave 35, the uncoiler 16 has excessively unwound the wire 1, so that the unwinding speed by the unwinding drive device 22 is controlled to be reduced. Is done.

  When the position of the moving sheave 35 of the accumulator device 17 exceeds the range of the upper limit position A or the lower limit position B, the wire length control device 46 unwinds the wire 1 by the uncoiler 16 and winds / unwinds. Since the winding of the wire 1 by the apparatus 18 is stopped, and the operation can be stopped without causing the wire 1 to be slack, the recovery operation can be easily performed.

  Furthermore, the tension of the wire 1 on the upstream side of the tension applying device 19 is maintained at a required value by adjusting the weight of the weight 37 and the moving sheave 35 or the weight of the moving sheave 35 alone.

  Thus, even if there is a difference between the unwinding speed of the wire 1 unwound from the uncoiler 16 and the winding speed of the wire 1 wound around the winding / unwinding device 18, the wire 1 is slackened. Or an excessive force can be prevented, smooth operation can be continuously performed, and the demand for high-speed operation can be met.

  Note that the accumulator device of the wire reeling equipment of the present invention is not limited to the above illustrated example, and the wire reeling equipment in which no tension applying device is disposed upstream of the winding / unwinding device. Needless to say, various modifications can be made without departing from the gist of the present invention.

It is a whole side view which shows an example of the form which implements this invention. It is a whole top view showing an example of an embodiment which carries out the present invention. It is a perspective view of the accumulator apparatus in an example of the form which carries out the present invention. It is a side view which shows an example of the conventional wire reeling installation. It is a top view which shows an example of the conventional wire reeling installation. It is a side view which shows the state which has performed the overhead wire by the air spinning method using an example of the conventional reeling equipment.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Wire 2 Run coil 5 Winding / unwinding device 6a Adjusting reel 6b Adjusting reel 7 Strand tension tower 15 Winding drive device 16 Uncoiler 17 Accumulator device 18 Winding / unwinding device 19 Tension applying device 21 Horizontal rotation Part 22 Unwinding drive device 23 Winding sheave 24 Winding sheave 29 Tower body 33 Turning sheave 34 Fixed sheave 34a Guide groove 35 Dynamic sheave 35a Guide groove 36 Space 44 Strike 45 Position detection sensor 45a Upper limit switch 45b Lower limit switch 46 Wire length Control device A Upper limit position B Lower limit position

Claims (3)

The wire is unwound upward from a run-wound coil set so that the axis is perpendicular to the rotationally driven uncoiler, and the unwound wire is aligned with the winding reel of the winding / unwinding device and wound. An accumulator device for a wire reeling facility,
A tower main body is erected between the uncoiler and the winding / unwinding device, and a fixed sheave is fixedly arranged at the top of the tower main body, and a moving sheave is arranged in the tower main body so as to be movable up and down, From the uncoiler, the wire wound upward from the run winding coil set in the uncoiler is wound around the fixed sheave and the moving sheave a plurality of times, and sent out from the fixed sheave to the winding / unwinding device side. The length of the wire generated between the uncoiler and the winding / unwinding device due to the difference between the unwinding speed of the wire being unwound and the winding speed of the wire being wound on the winding / unwinding device. An accumulator device for a wire reeling facility, wherein the accumulator device is configured to absorb fluctuations by moving up and down the moving sheave. A position detection sensor for detecting an upper limit position and a lower limit position of the moving sheave;
In a state where the wire is wound at a constant winding speed by the winding / unwinding device, the position of the dynamic sheave detected by the position detection sensor is positioned between the upper limit position and the lower limit position. When the unwinder controls the unwinding speed of the wire and the position of the moving sheave detected by the position detection sensor exceeds the upper limit position or lower limit position, the unwinder unwinds the wire and winds / unwinds. An accumulator device for a wire reeling facility according to claim 1, further comprising: a wire length control device that stops winding of the wire by the device.   The accumulator device for a wire reeling equipment according to claim 1 or 2, wherein the wire tension on the upstream side of the winding / unwinding device is adjusted by the weight of the moving sheave.

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