JP5920100B2 - Optical fiber winding method and winding apparatus - Google Patents

Description

  The present invention relates to a winding method and a winding device for winding an optical fiber.

  When winding an optical fiber that is continuously sent along the pass line, an electrostatic remover disposed on the upstream side of the take-up bobbin (reel) or in the vicinity of the bobbin along the pass line It is known to remove static electricity from fiber strands and winding bobbins (see, for example, Patent Document 1).

JP-A-4-357136

If the static electricity charged on the bobbin or the optical fiber is neutralized using an electrostatic remover as in the technique described in Patent Document 1 above, rewinding is performed while suppressing winding abnormality such as winding. Can be eliminated.
By the way, there are many electrostatic removers in which the outlets for ejecting ionized air are arranged at regular intervals. In this case, depending on the size of the bobbin, the ionized air is appropriately applied to the edges at both ends of the bobbin. There are times when you can't. Unlike the body covered with the optical fiber, the bobbin's collar is easily charged by contacting the optical fiber every turn of the traverse, and if the neutralization of the collar is insufficient, There is a possibility that the optical fiber is attracted and winding abnormality occurs.

  SUMMARY OF THE INVENTION An object of the present invention is to provide an optical fiber winding method and a winding apparatus that can satisfactorily eliminate the bobbin regardless of the bobbin size, and can smoothly wind the optical fiber around the bobbin without problems such as winding abnormality. It is to provide.

An optical fiber winding method of the present invention that can solve the above-described problem is a method of ejecting ionized air from the jet outlet of a bar-shaped electrostatic remover in which a plurality of jet outlets are provided at intervals, An optical fiber winding method in which a bobbin having flanges at both ends thereof is rotated, and an optical fiber is wound around the body portion while spraying ionized air ejected from the ejection port of the electrostatic remover onto the bobbin. There,
The static eliminator is disposed in parallel with the rotation axis of the bobbin, and the static eliminator is rotated around an axis perpendicular to the rotation axis of the bobbin according to the width in the rotation axis direction of the bobbin. One of the jet ports is disposed at a position corresponding to both ends of the bobbin, and the optical fiber is wound up.

In the optical fiber winding method of the present invention, the one end portion in the longitudinal direction of the static eliminator is rotatably supported, and the support portion of the one end portion is centered according to the width of the bobbin in the rotation axis direction. It is preferable that any one of the jet outlets is disposed at positions corresponding to both ends of the bobbin by rotating the electrostatic remover.
Alternatively, a longitudinally central portion of the static eliminator is rotatably supported, and the electrostatic eliminator is rotated around the support portion of the central portion according to the width of the bobbin in the rotation axis direction. It is preferable to arrange any one of the jet outlets at positions corresponding to both ends of the bobbin.

An optical fiber winding device according to the present invention includes a driving unit that rotates a bobbin having a flange on both ends of a body part to wind the optical fiber on the body part;
A bar-shaped electrostatic eliminator that ejects ionized air from a plurality of nozzles arranged at intervals to spray the bobbin;
A support portion that is disposed in parallel with the rotation axis of the bobbin and that supports the electrostatic eliminator so as to be rotatable about an axis perpendicular to the rotation axis of the bobbin;
According to the width of the bobbin in the rotation axis direction, the static eliminator is rotated at a place where it is supported by the support part, and any one of the ejection ports is disposed at a position corresponding to both ends of the bobbin. Features.

  According to the present invention, since the static eliminator is rotated according to the width of the bobbin in the rotation axis direction and any one of the jet outlets is disposed at the positions corresponding to both ends of the bobbin, Ionized air can be reliably sprayed on the bobbin collar, which is easily charged by contact with the fiber. Thus, not only the bobbin body and the optical fiber wound around the bobbin body, but also static electricity in the bobbin collar can be reliably removed. Therefore, the optical fiber can be smoothly wound around the body of the bobbin while reliably preventing winding abnormalities such as jumping due to static electricity. Moreover, even if the bobbin size changes when the bobbin is changed, the operation of aligning the position of the electrostatic remover according to the bobbin size can be performed smoothly.

It is a schematic block diagram which shows an example of the rewinding apparatus with which this invention is applied. It is a top view which shows the example of the winding apparatus which concerns on one Embodiment of this invention. It is a figure which shows a part of winding apparatus of FIG. 2, Comprising: (a) is a top view, (b) is a front view. It is a figure which shows a part of winding apparatus of FIG. 2, and is a figure explaining the state by which the bobbin size was changed, Comprising: (a) is a top view, (b) is a front view. It is a figure which shows a part of winding apparatus of FIG. 2, Comprising: It is a figure explaining the state to which the electrostatic removal device was rotated, Comprising: (a) is a top view, (b) is a front view. It is a figure which shows a part of winding apparatus which concerns on other embodiment, Comprising: (a) is a top view, (b) is a front view. It is a figure which shows a part of winding apparatus which concerns on other embodiment, and is a figure explaining the state by which the electrostatic removal device was rotated, Comprising: (a) is a top view, (b) is a front view. is there.

Hereinafter, an example of an embodiment of an optical fiber winding method and a winding device according to the present invention will be described with reference to the drawings.
First, the rewinding device provided with the winding device according to the present embodiment will be described. In addition, although the following embodiment illustrates and demonstrates a rewinding apparatus, this invention is applicable also to the coloring apparatus which colors and winds an optical fiber strand.

  As shown in FIG. 1, the rewinding device 11 rewinds the optical fiber strand (optical fiber) 1 while dividing it into the designated length, and the optical fiber strand 1 is wound around the feeding bobbin 12. ing. The optical fiber 1 is a glass fiber consisting of a silica glass core and clad coated with a resin, and the optical fiber 1 fed from the feeding bobbin 12 passes through guide rollers 13 and 16. To the capstan roller 17. Then, the optical fiber 1 is drawn at a predetermined linear speed via the capstan roller 17 and then wound around the bobbin 20 via the dancer roller 18 and the roller 19.

Next, a winding device that winds the optical fiber 1 around the bobbin 20 will be described.
As shown in FIG. 2, the winding device 21 includes a drive shaft (drive unit) 22 that is rotationally driven, and the bobbin 20 is attached to the drive shaft 22. The bobbin 20 is fixed to the drive shaft 22 and rotated, for example, clockwise as viewed from the right side of FIG. The bobbin 20 has a cylindrical body 20a and flanges 20b and 20c provided at both ends of the body 20a. The bobbin 20 winds the optical fiber 1 around the body 20a.

  The roller 19 that guides the optical fiber 1 is reciprocated in the direction of the rotation axis of the bobbin 20 with respect to the bobbin 20 rotated by the drive shaft 22. As a result, the optical fiber 1 is wound around the body 20 a of the bobbin 20 while being reciprocated in the axial direction of the bobbin 20. That is, the winding device 21 winds the optical fiber 1 around the body 20a of the bobbin 20 by fixing the position of the bobbin 20 in the rotation axis direction and reciprocating the optical fiber 1 (roller traverse method). Let me take it.

  The winding device 21 includes a rod-shaped electrostatic remover 51, and the electrostatic remover 51 is disposed along the rotational axis direction of the bobbin 20 and in parallel with the rotational axis of the bobbin. The electrostatic eliminator 51 has a bar body 52 and a plurality of jet outlets 53a, 53b, 53c, 53d provided at regular intervals along the longitudinal direction of the bar body 52. The static eliminator 51 ejects ionized air ionized to + or − from these ejection ports 53a, 53b, 53c, and 53d.

  It is preferable that the static eliminator 51 has a function of monitoring the charged state of the optical fiber 1 and the bobbin 20 that are objects of static elimination. By having the monitoring function, it is possible to eject only ionized air ionized to either + or − suitable for static elimination, and the static elimination effect can be further enhanced.

  The electrostatic remover 51 is attached to a cover 61, and a rotation shaft (supporting portion) 62 is fixed to the cover 61. The rotation shaft 62 extends along a direction orthogonal to the rotation axis of the bobbin 20, and the cover 61 can rotate about the axis X of the rotation shaft 62 orthogonal to the rotation axis of the bobbin 20. Has been. Then, together with this cover 61, the electrostatic remover 51 attached to the cover 61 is also rotated about the axis X of the rotation shaft 62.

The fixing position of the static eliminator 51 to which the rotation shaft 62 is fixed is the one end portion in the longitudinal direction of the static eliminator 51. Specifically, the position corresponds to the jet outlet 53 a on one end side of the electrostatic eliminator 51.
Further, the one-side jet port 53 a is disposed at a position corresponding to the flange portion 20 b on one side of the bobbin 20 attached to the drive shaft 22.

The case where an optical fiber strand is wound around a bobbin having a different size by the winding device 21 will be described.
As shown in FIGS. 3A and 3B, when the bobbin 20L is attached to the drive shaft 22, the flange portion 20b on one side is disposed at a position corresponding to the jet port 53a on one end side of the electrostatic remover 51. The In the bobbin 20L, the other flange portion 20c is disposed at a position corresponding to the third ejection port 53c from one end of the electrostatic remover 51.

  After the bobbin 20L is mounted on the drive shaft 22 in this way and the winding start end of the optical fiber 1 is locked to the flange 20b of the bobbin 20L and the winding device 21 is operated, the drive shaft 22 rotates. As a result, the bobbin 20L rotates, and the winding of the optical fiber 1 to the body 20a is started. Further, the roller 19 (see FIG. 2) for guiding the optical fiber 1 is reciprocated (traversed) in the direction of the rotation axis of the bobbin 20L with respect to the bobbin 20L. As a result, the optical fiber 1 is wound around the body 20a of the bobbin 20L while being reciprocated in the direction of the rotation axis of the bobbin 20.

  When the optical fiber 1 is wound around the body 20a of the bobbin 20L, ionized air is ejected from the ejection ports 53a, 53b, 53c, and 53d of the electrostatic eliminator 51 and sprayed onto the bobbin 20L. Then, the static electricity is removed from the optical fiber wire 1 wound around the body portion 20a of the bobbin 20L by ionized air sprayed on the winding portion. In addition, since the ejection ports 53a and 53c of the electrostatic remover 51 are arranged at corresponding positions on the flange portions 20b and 20c of the bobbin 20L, the ionized air ejected from these ejection ports 53a and 53c Static electricity in each of the flanges 20b and 20c is also reliably removed.

  Thereby, the static electricity of the bobbin 20L can be removed satisfactorily, and the optical fiber 1 can be smoothly wound around the body 20a of the bobbin 20L while reliably preventing winding abnormalities such as winding due to static electricity. it can.

Next, a case where the optical fiber 1 is wound around a small bobbin 20S having a width different from the bobbin 20L in the rotation axis direction will be described.
As shown in FIGS. 4A and 4B, when the bobbin 20S is attached to the drive shaft 22, the flange portion 20b on one side is disposed at a position corresponding to the jet port 53a on one end side of the electrostatic remover 51. The The bobbin 20S is a small bobbin whose axial length is smaller than the bobbin 20L. In this example, the one end position of the bobbin 20S is arranged to match the one end position of the bobbin 20L. For this reason, the flange 20c on the other side of the bobbin 20S is disposed between the second ejection port 53b and the third ejection port 53c from one end of the electrostatic eliminator 51.

  Therefore, even if ionized air is ejected from the respective ejection ports 53a, 53b, 53c, 53d of the electrostatic eliminator 51 in this state, the ionized air is not properly ejected to the flange portion 20c on the other side. Since the flange portions 20b and 20c are easily charged by contacting the optical fiber 1 every time the traverse of the roller 19 turns, if the neutralization of the flange portion 20c is insufficient, the optical fiber element is transferred to the flange portion 20c. There is a possibility that the wire 1 is attracted and winding abnormality occurs.

  In such a case, as shown in FIGS. 5A and 5B, the electrostatic remover 51 is rotated about the axis X of the rotation shaft 62. Then, the positions of the jet outlets 53b, 53c, 53d of the electrostatic eliminator 51 move in an arc shape around the axis X, and the jet outlet 53c is arranged at a position corresponding to the other flange portion 20c.

  When the bobbin 20S is mounted on the drive shaft 22 and the electrostatic remover 51 is aligned in this manner, the winding start end of the optical fiber 1 is locked to the flange 20b of the bobbin 20S, and then the winding device 21. Is activated. Then, when the drive shaft 22 rotates, the bobbin 20S rotates, and the winding of the optical fiber 1 to the bobbin body 20a is started. Further, the roller 19 (see FIG. 2) for guiding the optical fiber 1 is reciprocated in the direction of the rotation axis of the bobbin 20S with respect to the bobbin 20S. Thereby, the optical fiber 1 is wound around the body portion 20a of the bobbin 20S while being reciprocated in the direction of the rotation axis of the bobbin 20S.

  When the optical fiber 1 is wound around the body 20a of the bobbin 20S, ionized air is ejected from the ejection ports 53a, 53b, 53c, and 53d of the electrostatic remover 51 and sprayed onto the bobbin 20S. Then, static electricity is removed from the optical fiber 1 wound around the body 20a of the bobbin 20S by the ionized air sprayed on the winding location. Further, since each of the flange portions 20b of the bobbin 20S is provided with the injection ports 53a and 53c of the electrostatic eliminator 51 corresponding to each of the flange portions 20b, Static electricity in the portion 20b is also reliably removed.

  Thereby, the static electricity of the bobbin 20S can be removed satisfactorily, and the optical fiber 1 can be smoothly wound around the body 20a of the bobbin 20S while reliably preventing winding abnormalities such as winding due to static electricity. it can.

  Thus, according to the above-described embodiment, the electrostatic remover 51 is rotated according to the width of the bobbin 20 in the rotation axis direction, and the ejection ports 53a, 53b, 53c, Since any one of 53d is disposed, ionized air can be surely sprayed onto the flange portions 20b and 20c of the bobbin 20 which are easily charged by contacting the optical fiber 1 every time the traverse of the roller 19 is turned. it can. Thereby, not only the trunk | drum 20a of the bobbin 20, but the optical fiber strand 1 wound around the trunk | drum 20a of this bobbin 20, the static electricity in the collar parts 20b and 20c of the bobbin 20 can also be removed reliably. Therefore, the optical fiber 1 can be smoothly wound around the body 20a of the bobbin 20 while reliably preventing winding abnormality such as winding due to static electricity. Further, even if the bobbin 20 to be used is changed from, for example, the bobbin 20L to a bobbin 20S having a different size (bobbin width), the operation of aligning the position of the electrostatic remover 51 according to the bobbin size can be performed smoothly.

Next, examples of other embodiments will be described.
As shown in FIGS. 6A and 6B, in the winding device 21A, the central portion in the longitudinal direction of the bar-shaped electrostatic remover 51 is rotatably supported by a rotating shaft, and both ends are supported. It is considered as a free end. Then, the electrostatic eliminator 51 is rotated about the axis X of the rotation shaft 62 orthogonal to the rotation axis of the bobbin 20 at this central position, so that the electrostatic eliminator 51 has the ejection ports 53a, 53b, 53c. , 53d move in an arc shape around the axis X. The winding device 21A has the same configuration as the winding device 21 shown in FIGS. 2 to 5 except for the position of the rotation axis (axis X).

The case where an optical fiber is wound around a bobbin having a different size by the winding device 21A will be described.
As shown in FIGS. 6A and 6B, when the bobbin 20L is attached to the drive shaft 22, both the flanges 20b and 20c are arranged at positions corresponding to the ejection ports 53a and 53d of the electrostatic remover 51, respectively. Is done.

  After the bobbin 20L is mounted on the drive shaft 22 in this way and the winding start end of the optical fiber 1 is locked to the flange 20b of the bobbin 20L and the winding device 21A is operated, the drive shaft 22 rotates. As a result, the bobbin 20L rotates, and the winding of the optical fiber 1 to the body 20a is started. Further, a roller 19 (see FIG. 2) for guiding the optical fiber 1 is reciprocated in the direction of the rotation axis of the bobbin 20L with respect to the bobbin 20L. As a result, the optical fiber 1 is wound around the body 20a of the bobbin 20L while being reciprocated in the direction of the rotation axis of the bobbin 20.

  When the optical fiber 1 is wound around the body 20a of the bobbin 20L, ionized air is ejected from the ejection ports 53a, 53b, 53c, and 53d of the electrostatic eliminator 51 and sprayed onto the bobbin 20L. Then, the static electricity is removed from the optical fiber wire 1 wound around the body portion 20a of the bobbin 20L by ionized air sprayed on the winding portion. Moreover, since each of the flange portions 20b and 20c of the bobbin 20L is provided with the injection ports 53a and 53d of the electrostatic eliminator 51, the ionized air ejected from these injection ports 53a and 53d is used. Static electricity in each of the flanges 20b and 20c is also reliably removed.

  Thereby, the static electricity of the bobbin 20L can be removed satisfactorily, and the optical fiber 1 can be smoothly wound around the body 20a of the bobbin 20L while reliably preventing winding abnormalities such as winding due to static electricity. it can.

Next, a case where the optical fiber 1 is wound around a small bobbin 20S having a width different from the bobbin 20L in the rotation axis direction will be described. In this example, the bobbin 20S is disposed so that the center position thereof matches the center position of the bobbin 20L.
In the state of FIG. 6, when a small bobbin 20S whose length in the rotation axis direction is smaller than the bobbin 20L is mounted on the drive shaft 22 with the center position in the rotation axis direction aligned with the center position similar to the bobbin 20L, the bobbin 20S The flange 20b is disposed between the jets 53a and 53b of the electrostatic remover 51, and the flange 20c of the bobbin 20S is disposed between the jets 53c and 53d of the electrostatic remover 51.

  Therefore, even if ionized air is ejected from the respective ejection ports 53a, 53b, 53c, and 53d of the electrostatic eliminator 51 in this state, the ionized air is not smoothly ejected to both the flange portions 20b and 20c. Since the flange portions 20b and 20c are easily charged by contacting the optical fiber 1 every time the traverse of the roller 19 turns, the flange portions 20b and 20c are insufficient if the discharge of the flange portions 20b and 20c is insufficient. There is a possibility that the optical fiber 1 is pulled to the end and winding abnormality occurs.

  In such a case, as shown in FIGS. 7A and 7B, the static eliminator 51 is rotated about the axis X at the center in the longitudinal direction. Then, the positions of the jet outlets 53a, 53b, 53c, 53d of the electrostatic eliminator 51 move in an arc shape around the axis X, and the jet outlets 53a, 53d are at positions corresponding to the flanges 20b, 20c, respectively. Be placed.

  When the bobbin 20S is mounted on the drive shaft 22 and the electrostatic remover 51 is aligned in this manner, the winding start end of the optical fiber 1 is locked to the flange 20b of the bobbin 20S, and then the winding device 21. Is activated. Then, when the drive shaft 22 rotates, the bobbin 20S rotates, and the winding of the optical fiber 1 to the bobbin body 20a is started. Further, the roller 19 (see FIG. 2) for guiding the optical fiber 1 is reciprocated in the direction of the rotation axis of the bobbin 20S with respect to the bobbin 20S. Thereby, the optical fiber 1 is wound around the body portion 20a of the bobbin 20S while being reciprocated in the direction of the rotation axis of the bobbin 20S.

  When the optical fiber 1 is wound around the body 20a of the bobbin 20S, ionized air is ejected from the ejection ports 53a, 53b, 53c, and 53d of the electrostatic remover 51 and sprayed onto the bobbin 20S. Then, static electricity is removed from the optical fiber 1 wound around the body 20a of the bobbin 20S by the ionized air sprayed on the winding location. In addition, since each of the flange portions 20b and 20c of the bobbin 20S is provided with the ejection ports 53a and 53d of the electrostatic remover 51, the ionized air ejected from these ejection ports 53a and 53d is used. Static electricity in each of the flanges 20b and 20c is also reliably removed.

  Thereby, the static electricity of the bobbin 20S can be removed satisfactorily, and the optical fiber 1 can be smoothly wound around the body 20a of the bobbin 20S while reliably preventing winding abnormalities such as winding due to static electricity. it can.

  As described above, also in the winding device 21 </ b> A shown in FIGS. 6 and 7, the static eliminator 51 is rotated according to the width of the bobbin 20 in the rotation axis direction so as to correspond to both ends of the bobbin 20. Since any one of the outlets 53a, 53b, 53c, and 53d is disposed, the ionized air is surely sprayed to the flanges 20b and 20c that are easily charged by contacting the optical fiber 1 every turn of the traverse. Can do. Thereby, similarly to the winding device 21 shown in FIGS. 2 to 5, the optical fiber 1 can be smoothly wound around the body 20 a of the bobbin 20, and the electrostatic remover 51 according to the bobbin size. The operation of aligning the positions can be performed smoothly.

  In the above-described winding devices 21 and 21A, when the electrostatic remover 51 having a function of monitoring the charged state of the bobbin 20 is used, the electrostatic removal is performed so that the electrostatic charge amount of the bobbin 20 is minimized. The rotation angle of the device 51 can be automatically adjusted. Such control can more effectively suppress the occurrence of winding abnormality.

  Three types of bobbins having different bobbin sizes (widths in the rotation axis direction of the bobbin) were prepared and set in the rewinding device 11 shown in FIG. 1 to rewind the optical fiber. The winding device uses the winding device 21 shown in FIGS. 2 to 5 and rotates the electrostatic remover 51 in accordance with the interval between the bobbin collars, so that the jet outlet is located at a position corresponding to both ends of the bobbin. Any one of 53a, 53b, 53c, and 53d was disposed. The bobbin size (here, the interval between the flanges) and the rotation angle of the electrostatic remover 51 (the angle with respect to the rotation axis of the bobbin) are as follows.

Bobbin A: 95 mm gap between collars, rotation angle 37.7 °
Bobbin B: Spacing of the buttock 120mm, rotation angle 0 °
Bobbin C: 150 mm gap between hips, rotation angle 33.6 °
In addition, the space | interval of adjacent jet nozzle 53a, 53b, 53c, 53d is 60 mm.

As a result of winding on each of the bobbins A, B, and C, the ratio (rewinding rate) at which rewinding was necessary again due to winding failure was about 5%.
On the other hand, when bobbins A, B, and C were used and the electrostatic eliminator 51 was not rotated according to the interval between the bobbin ridges, the rewinding rate of the bobbin B was about 5%. However, the rewinding rate of bobbins A and C was about 10%.
That is, it has been found that the rewinding rate can be reduced (halved in this example) by arranging the jet outlets at positions corresponding to both ends of the bobbin in accordance with the interval between the bobbin collars.
Even when the central portion of the static eliminator 51 is rotated using the winding device 21A shown in FIGS. 6 and 7, the rewinding rate of the bobbin matches the width of the bobbin in the rotation axis direction. Compared with the case where it is not rotated, it can be halved.

1: optical fiber (optical fiber), 11: rewinding device, 20, 20L, 20S: bobbin, 20a: trunk, 20b, 20c: collar, 21, 21A: winding device, 22: drive shaft ( Drive unit), 51: electrostatic remover, 53a, 53b, 53c, 53d: jet port, 62: rotating shaft (support unit), X: axis

Claims (4)

Ionized air is ejected from the jet outlet of a bar-shaped electrostatic eliminator in which a plurality of jet outlets are provided at intervals, and a bobbin having flanges at both ends of the body is rotated, and the electrostatic removal is performed on the bobbin. An optical fiber winding method for winding an optical fiber around the barrel while spraying ionized air ejected from the ejection port of a container,
The static eliminator is disposed in parallel with the rotation axis of the bobbin, and the static eliminator is rotated around an axis perpendicular to the rotation axis of the bobbin according to the width in the rotation axis direction of the bobbin. A method of winding an optical fiber, wherein the optical fiber is wound by disposing any of the jet ports at positions corresponding to both ends of the bobbin. An optical fiber winding method according to claim 1,
The one end portion in the longitudinal direction of the static eliminator is rotatably supported, and the static eliminator is rotated around the supporting portion of the one end portion according to the width in the rotation axis direction of the bobbin. An optical fiber winding method, wherein any one of the jet outlets is disposed at a position corresponding to both ends of a bobbin. An optical fiber winding method according to claim 1,
A center portion in the longitudinal direction of the static eliminator is rotatably supported, and the static eliminator is rotated around the support portion of the central portion according to the width of the bobbin in the rotation axis direction. An optical fiber winding method, wherein any one of the jet outlets is disposed at a position corresponding to both ends of a bobbin. A drive unit that rotates a bobbin having a flange on both ends of the body part to wind the optical fiber around the body part;
A bar-shaped electrostatic eliminator that ejects ionized air from a plurality of nozzles arranged at intervals to spray the bobbin;
A support portion that is disposed in parallel with the rotation axis of the bobbin and that supports the electrostatic eliminator so as to be rotatable about an axis perpendicular to the rotation axis of the bobbin;
According to the width of the bobbin in the rotation axis direction, the static eliminator is rotated at a place where it is supported by the support part, and any one of the ejection ports is disposed at a position corresponding to both ends of the bobbin. An optical fiber winding device.

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