JP2015085642A - Filament winding apparatus - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a filament winding apparatus that can arrange a fiber in the desired position and that can make the fiber pitch width uniform by preventing the displacement of the fiber on the circumference of a liner during the forming of a cylindrical net body by winding a fiber around the outer peripheral surface of the liner.SOLUTION: Provided is a filament winding apparatus 100 in which a cylindrical net body N is formed with a plurality of fiber F wound around a cylindrical liner 10 by a winding unit 2, and is characterized in that the winding unit 2 comprises a first winding unit for winding a first direction fiber F1 which is a fiber inclined with respect to the axis of the liner 10 in a first direction, around the outer peripheral surface of the liner 10, and a second winding unit for winding a second direction fiber F2 which is a fiber inclined with respect to the axis of the liner 10 in a second direction which is an opposite direction to the first direction, around the outer peripheral surface of the liner 10, and on the outer peripheral surface of the liner 10 a first ditch D1 inclined in the first direction and a second ditch D2 inclined in the second direction are formed.

Description

  The present invention relates to a technique of a filament winding apparatus.

  2. Description of the Related Art Conventionally, a filament winding apparatus that winds a fiber around a core is known (for example, see Patent Document 1). Further, in such a filament winding apparatus, there is a demand for forming a tubular net by winding a plurality of fibers around the outer peripheral surface of a cylindrical liner.

  When a fiber is wound around the outer peripheral surface of the liner to form a cylindrical network, the fibers are displaced around the liner, so that the fibers cannot be arranged at a desired position, and the pitch width of the fibers becomes non-uniform and beautiful. The mesh cannot be obtained.

JP 2010-23481 A

  In the present invention, when a fiber is wound around the outer peripheral surface of a liner to form a tubular network, the fiber can be arranged at a desired position by preventing the fiber from shifting around the liner, and the pitch of the fiber An object of the present invention is to provide a filament winding apparatus capable of making the width uniform.

  Next, means for solving this problem will be described.

That is, the first invention is
A filament winding apparatus comprising a winding part for winding a plurality of fibers around an outer peripheral surface of a cylindrical liner, and forming a tubular network with fibers wound around the liner by the winding part,
The winding portion includes a first winding portion for winding a first-direction fiber, which is a fiber inclined in a first direction with respect to an axis of the liner, around the outer peripheral surface of the liner, and the first winding portion with respect to the liner axis. A second winding portion for winding a second-direction fiber that is a fiber inclined in a second direction that is opposite to the one direction around the outer peripheral surface of the liner;
A first groove inclined in the first direction and a second groove inclined in the second direction are formed on the outer peripheral surface of the liner.

2nd invention is the filament winding apparatus which concerns on 1st invention,
The winding portion includes a third winding portion for winding a third direction fiber that is a fiber parallel to the axis of the liner around the outer peripheral surface of the liner,
A third groove parallel to the liner axis is formed on the outer peripheral surface of the liner.

3rd invention is the filament winding apparatus which concerns on 1st invention,
The winding part includes a third winding part for winding a third direction fiber that is a fiber perpendicular to the axis of the liner around the outer peripheral surface of the liner,
A third groove perpendicular to the liner axis is formed on the outer peripheral surface of the liner.

A fourth invention is the filament winding apparatus according to any one of the first to third aspects,
The depth of the groove formed on the outer peripheral surface of the liner was larger than the diameter of the fiber and smaller than the total height at the intersection of the fibers.

A fifth invention is the filament winding apparatus according to any one of the first to fourth aspects,
The liner is configured to be divided in the circumferential direction.

  As effects of the present invention, the following effects can be obtained.

  According to the first invention, the filament winding apparatus prevents the fibers from shifting around the liner, whereby the fibers can be arranged at desired positions and the pitch width of the fibers can be made uniform.

  According to the second aspect of the invention, the fibers can be arranged at a desired position by preventing the deviation of the fibers parallel to the liner axis by the filament winding apparatus.

  According to the third aspect of the invention, the fiber can be arranged at a desired position by preventing the fiber perpendicular to the liner axis with the filament winding apparatus.

  According to 4th invention, the intensity | strength of a cylindrical net body can be improved.

  According to the fifth aspect, it is possible to easily remove the tubular net wound around the liner from the liner.

The figure which shows the structure of the filament winding apparatus of 1st embodiment. The figure which shows the structure of a 1st hoop winding apparatus. The figure shown about the liner used with the filament winding apparatus of 1st embodiment. (A1) to (b2) are diagrams showing the relationship between fibers and grooves, respectively. (A) to (d) is a diagram showing a procedure for removing a tubular net from a liner used in the filament winding apparatus of the first embodiment. The figure shown about the liner used with the filament winding apparatus of 2nd embodiment. (A) to (c) is a diagram showing a procedure for removing a tubular net from a liner used in the filament winding apparatus of the second embodiment. The figure which shows the structure of the filament winding apparatus of 3rd embodiment. The figure shown about the liner used with the filament winding apparatus of 3rd embodiment.

  First, the configuration of the filament winding apparatus 100 according to the first embodiment of the present invention will be described with reference to FIGS. 1 to 5.

  FIG. 1 is a diagram showing the configuration of the filament winding apparatus 100. An arrow X shown in the drawing indicates a feeding direction (traveling direction) of the resin liner 10 formed in a cylindrical shape. That is, in FIG. 1, the liner 10 is fed from the right side to the left side. Here, the direction F in which the liner 10 is sent out is defined as “forward direction”, and the opposite direction R is defined as “reverse direction”.

  As shown in FIG. 1, the filament winding apparatus 100 is supported by a platform 50. More specifically, the filament winding apparatus 100 includes a pedestal 50 installed on the floor surface, and each unit is disposed on the pedestal 50.

  The filament winding apparatus 100 includes a winding unit 2 that winds a plurality of fibers F (first direction fibers F1 to third direction fibers F3) around the outer peripheral surface of the liner 10, and is wound around the liner 10 by the winding unit 2. A cylindrical net N (see FIG. 5) is formed from the fibers F. In the filament winding apparatus 100 according to the present embodiment, synthetic fibers such as PET (Polyethylene terephthalate) are used as the fibers F, but carbon fibers or the like can also be used as the fibers F.

  The filament winding apparatus 100 includes a configuration for sequentially feeding the liners 10. Specifically, support pillars 1 and 1 are provided on the upstream side and the downstream side of the filament winding apparatus 100, respectively, and an insertion shaft 1 a is bridged between the support pillars 1 and 1. The insertion shaft 1a is inserted into the liner 10 and the liners 10 are sent out one after another. In addition, the filament winding apparatus 100 includes a roller 1r that rotates in contact with the liner 10. Since the filament winding apparatus 100 can switch the rotation direction of the roller 1r, it is also possible to return the liner 10 from the forward direction to the reverse direction.

  The winding part 2 is a part for winding the fiber F around the liner 10. In the filament winding apparatus 100 according to the present embodiment, the winding unit 2 includes two hoop winding devices (a first hoop winding device 20 that is a first winding unit and a second hoop winding device 30 that is a second winding unit). ) And a helical winding device 40 which is a third winding part.

The first hoop winding device 20 is a first-direction fiber F1 that is a fiber that is inclined in a first direction (a direction wound in a counterclockwise direction in a direction opposite to the traveling direction of the liner 10) with respect to the axis of the liner 10. Is configured to be wound around the outer peripheral surface of the liner 10.
The second hoop winding device 30 is inclined in a second direction (a direction wound clockwise in a direction opposite to the traveling direction of the liner 10), which is a direction opposite to the first direction with respect to the axis of the liner 10. It is comprised so that the 2nd direction fiber F2 which is a fiber may be wound around the outer peripheral surface of the liner 10.
The helical winding device 40 is configured to wind the third direction fiber F3 that is a fiber parallel to the axis of the liner 10 around the outer peripheral surface of the liner 10.

  The first hoop winding device 20 is a device that winds the first direction fiber F <b> 1 around the outer peripheral surface of the liner 10. Specifically, the first hoop winding device 20 is a device that performs so-called hoop winding in which the winding angle of the fiber F is large (close to about 90 degrees) with respect to the feeding direction of the liner 10. The first hoop winding device 20 mainly includes a base 21, a power mechanism 22, and a hoop winding device.

  The base 21 erected on the base 50 is provided with a hoop winding device that is rotated by a power mechanism 22 having a servo motor. As shown in FIG. 2, the hoop winding device includes an annular plate-shaped winding table 23 and four bobbins 24, and the liner 10 is inserted into the winding table 23, thereby the liner 10. Hoop winding around the outer peripheral surface In the filament winding apparatus 100 according to the present embodiment, the bobbin 24 provided in the first hoop winding apparatus 20 is configured as four, but the number of bobbins 24 may be other numbers.

  The hoop winding device mainly includes a winding table 23 that performs hoop winding, and a bobbin 24 that supplies the first direction fibers F1 to the winding table 23. Then, the first direction fibers F <b> 1 are guided to the outer peripheral surface of the liner 10 by the fiber guide 25 provided on the winding table 23 corresponding to the bobbin 24. The first hoop winding device 20 performs the hoop winding of the first-direction fibers F <b> 1 on the liner 10 by moving the liner 10 while rotating the hoop winding device. In the filament winding apparatus 100 according to the present embodiment, the hoop winding apparatus is rotated counterclockwise when facing the direction R opposite to the traveling direction of the liner 10, as indicated by an arrow r in FIG. . As a result, the first direction fibers F1, which are fibers inclined in the first direction (the direction wound counterclockwise in the direction opposite to the running direction of the liner 10) with respect to the axis of the liner 10, are changed to the outer periphery of the liner 10. It is configured to wrap around the surface.

  With such a configuration, the first hoop winding device 20 has a larger winding angle of the first direction fibers F1 that are fibers inclined in the first direction with respect to the axis of the liner 10 with respect to the front-rear direction of the filament winding device 100. Hoop winding is performed so that it becomes.

  The second hoop winding device 30 is a device that winds around the outer circumferential surface of the liner 10 the second direction fiber F2 that is the direction opposite to the first direction. The second hoop winding device 30 has the same configuration as the first hoop winding device 20 except for the winding direction of the second direction fiber F2. That is, the second hoop winding device 30 mainly includes a base 31, a power mechanism 32, and a hoop winding device. The hoop winding device includes an annular plate-shaped winding table 33 and four bobbins 34. When the liner 10 is inserted into the winding table 33, the hoop winding device is wound around the outer peripheral surface of the liner 10. To do.

  The hoop winding device mainly includes a winding table 33 that performs hoop winding, and a bobbin 34 that supplies the second direction fibers F2 to the winding table 33. Then, the second direction fiber F <b> 2 is guided to the outer peripheral surface of the liner 10 by the fiber guide 35 provided on the winding table 33 corresponding to the bobbin 34. The second hoop winding device 30 performs the hoop winding of the second-direction fibers F <b> 2 on the liner 10 by moving the liner 10 while rotating the hoop winding device. In the filament winding apparatus 100 according to the present embodiment, the hoop winding apparatus is rotated clockwise when facing the direction R opposite to the traveling direction of the liner 10. As a result, the second direction fiber F2 that is a fiber inclined in the second direction (the direction wound clockwise in the direction opposite to the traveling direction of the liner 10) with respect to the axis of the liner 10 is changed to the outer peripheral surface of the liner 10. It is configured to wind around.

  With such a configuration, the second hoop winding device 30 has a filament winding device in which the winding angle of the second direction fibers F2, which are fibers inclined in the second direction opposite to the first direction, with respect to the axis of the liner 10 is The hoop winding is performed so as to increase in the longitudinal direction of 100.

  The helical winding device 40 is a device that winds the fiber F around the outer peripheral surface of the liner 10. Specifically, the helical winding device 40 is a device that performs so-called helical winding in which the winding angle of the fiber F is parallel to the front-rear direction of the filament winding device 100. The helical winding device 40 mainly includes a base 41 and a helical winding device 42.

  The base 41 is provided with a helical winding device 42. The helical winding device 42 performs helical winding on the outer peripheral surface of the liner 10. Specifically, the helical winding device 42 includes a helical head that performs helical winding, and third direction fibers F <b> 3 that are parallel to the axis of the liner 10 are guided from the plurality of bobbins 43 to the helical head. By inserting the liner 10 into the helical winding device 40, helical winding is performed on the outer peripheral surface of the liner 10. In addition, since the helical winding device 40 can expand and contract a fiber guide (not shown) in a direction approaching or separating from the outer peripheral surface of the liner 10, it can appropriately guide the third direction fiber F <b> 3 according to the shape of the liner 10.

  With such a configuration, the helical winding device 40 can perform helical winding in which the third direction fiber F3 that is a fiber parallel to the axis of the liner 10 is wound around the outer peripheral surface of the liner 10. In addition, in this embodiment, the fiber F of the same raw material and diameter is used about the 1st direction fiber F1-the 3rd direction fiber F3.

  As described above, the cylindrical net N formed of the fibers F wound around the liner 10 by the winding portion 2 in the filament winding apparatus 100 is heated by the heat roller H (see FIGS. 4A2 and 4B2). And pressed. Thereby, the fibers F are welded and bonded to each other, and the cylindrical net N is integrally formed.

  As shown in FIG. 3, in the filament winding apparatus 100 according to the present embodiment, the outer peripheral surface of the liner 10 has a first groove D1 inclined in the first direction and a second groove D2 inclined in the second direction. Is formed. Specifically, the first groove D <b> 1 is formed on the outer peripheral surface of the liner 10 in a direction (first direction) that is wound counterclockwise in the direction opposite to the traveling direction of the liner 10. Further, a second groove D2 is formed on the outer peripheral surface of the liner 10 so as to be inclined in a direction (second direction) wound clockwise in the direction opposite to the traveling direction of the liner 10.

  By configuring as described above, the filament winding apparatus 100 can prevent the fiber F from shifting around the liner 10. That is, the first direction fiber F1 can be wound around the liner 10 along the first groove D1, and the second direction fiber F2 can be wound around the liner 10 along the second groove D2. That is, the fibers F can be arranged at desired positions on the outer peripheral surface of the liner 10, and the pitch width of the fibers F can be made uniform.

  As shown in FIG. 3, in the filament winding apparatus 100 according to the present embodiment, a third groove D <b> 3 parallel to the axis of the liner 10 is formed on the outer peripheral surface of the liner 10. In the present embodiment, the third groove D3 is formed so as to pass through the intersection of the first groove D1 and the second groove D2 as shown in FIG. That is, the first groove D1, the second groove D2, and the third groove D3 are formed so that a large number of triangles having the same shape are represented on the outer peripheral surface of the liner 10. For this reason, also in the cylindrical net N, a large number of triangles having the same shape are formed by the first direction fibers F1, the second direction fibers F2, and the third direction fibers F3.

  By configuring as described above, the filament winding apparatus 100 can prevent the deviation of the third direction fibers F3 parallel to the axis of the liner 10. That is, the third direction fiber F3 can be wound around the liner 10 along the third groove D3. That is, the third direction fiber F3 can be arranged at a desired position on the outer peripheral surface of the liner 10.

  In this embodiment, since it is comprised so that the 1st direction fiber F1, the 2nd direction fiber F2, and the 3rd direction fiber F3 may intersect at one point, the fiber F (1st direction fiber F1-3rd direction fiber F3) The total height at the intersections is three times (h × 3) the diameter h of the fiber F as shown in FIG. 4 (a1) to (b2), in the filament winding apparatus 100 according to the present embodiment, the depths of the grooves D (first groove D1 to third groove D3) formed on the outer peripheral surface of the liner 10. The length d is larger than the diameter h of the fiber F (first direction fiber F1 to third direction fiber F3), and the total height at the intersection of the fibers F (first direction fiber F1 to third direction fiber F3). It is formed to be smaller than (h × 3).

  As shown in FIG. 4 (a1), since the depth d of the groove D is larger than the diameter h of the fiber F, the fiber F does not protrude from the groove D. For this reason, as shown in FIG. 4 (a2), even when the cylindrical net N is heated and pressed by the heat roller H, the fiber F is located inside the groove D, and therefore, the influence of heat and pressure by the heat roller H. Not receive.

  On the other hand, as shown in FIG. 4 (b1), the depth d of the groove D is smaller than the total height (h × 3) at the intersection of the fibers F, so that the fibers F protrude from the grooves D. For this reason, as shown in FIG. 4 (b2), when the tubular net N is heated and pressed by the heat roller H, the fibers F are compressed inside the groove D and welded together. That is, the first direction fibers F1 to the third direction fibers F3 are bonded to each other at the intersections, and the cylindrical net N is integrally formed. In other words, by configuring as described above, the strength of the cylindrical net N can be improved.

  Further, in the filament winding apparatus 100 according to the present embodiment, the liner 10 is configured to be separable in the circumferential direction. Specifically, as shown in FIG. 3, the liner 10 is composed of liner materials 10a to 10d and a wedge member 10w obtained by dividing the liner 10 in the circumferential direction approximately every 90 degrees. More specifically, the cylindrical liner 10 is formed by inserting the wedge member 10w between the liner materials 10a and 10b after combining the liner materials 10a to 10d.

  By configuring as described above, in the filament winding apparatus 100, it is possible to easily remove the tubular net N wound around the liner 10 from the liner 10. Specifically, as shown in FIGS. 5A to 5D, when removing the tubular net N from the liner 10, first, the wedge member 10 w is extracted inside. Thereafter, the liner materials 10a and 10b are removed from the liner materials 10c and 10d, respectively, and finally the liner materials 10c and 10d are removed from the cylindrical net N. Thus, according to the present embodiment, it is possible to remove the tubular net N from the liner 10 while maintaining the shape of the cylindrical net N.

  Next, the liner 110 used in the filament winding apparatus according to the second embodiment of the present invention will be described with reference to FIGS. 6 and 7. In the following embodiments, components common to those in the first embodiment will be denoted by the same reference numerals, description thereof will be omitted, and components different from those in the first embodiment will be mainly described.

  The liner 110 in the present embodiment is formed by covering the liner material 110a to 110d and the wedge member 110w obtained by dividing the liner 110 in the circumferential direction approximately every 90 degrees with a cylindrical elastic material 111. Specifically, after the liner materials 110a to 110d are combined, the wedge member 110w is inserted between the liner materials 110a and 110b, and the elastic material 111 is placed thereon, whereby the cylindrical liner 110 is formed.

  As shown in FIG. 6, in the filament winding apparatus according to this embodiment, the outer peripheral surface of the liner 110, that is, the outer peripheral surface of the elastic material 111, is inclined in the first direction as in the first embodiment. A groove D1, a second groove D2 inclined in the second direction, and a third groove D3 parallel to the axis of the liner 10 are formed.

  As shown in FIGS. 7A to 7C, when the cylindrical net N wound around the liner 110 is removed from the liner 110 in this embodiment, the liner material 110a · 110b and wedge member 110w are removed. Then, by deforming the elastic material 111 as shown in FIG. 7C, the cylindrical net N is removed from the elastic material 111.

  By configuring as described above, the shape of the liner 110 can be easily and inexpensively changed while preventing the fiber F from shifting around the liner 110 with the filament winding apparatus. That is, when changing the shape of the cylindrical mesh body N by changing the shape of the first groove D1 to the third groove D3, it is only necessary to replace the elastic material 111, so the shape of the liner 110 can be easily and inexpensively changed. It can be changed.

  Next, the configuration of the filament winding apparatus 200 according to the third embodiment of the present invention will be described with reference to FIGS.

  The filament winding apparatus 200 includes a winding unit 202 that winds a plurality of fibers F (F1 to F3) around an outer peripheral surface of a liner 210, and forms a tubular network with the fibers F wound around the liner 210 by the winding unit 202. To do.

  The winding part 202 is a part for winding the fiber F around the liner 210. In the filament winding apparatus 200 according to the present embodiment, the winding unit 2 includes three hoop winding units (a first hoop winding unit 20 that is a first winding unit and a second hoop winding unit 30 that is a second winding unit). And a third hoop winding device 240) which is a third winding portion. The first hoop winding device 20 and the second hoop winding device 30 have the same configuration as the filament winding device 100 according to the first embodiment.

The third hoop winding device 240 is configured to wind the third direction fiber F <b> 3 that is a fiber perpendicular to the axis of the liner 210 around the outer peripheral surface of the liner 210.
Specifically, the third hoop winding device 240 is a device that winds the third-direction fibers F3 around the outer peripheral surface of the liner 210. Specifically, the third hoop winding device 240 is a device that performs so-called hoop winding in which the winding angle of the fiber F is perpendicular to the axis of the liner 210. The third hoop winding device 240 mainly includes a base 241, a power mechanism 242, and a hoop winding device.

  A base 241 erected on the platform 50 is provided with a hoop winding device that is rotated by a power mechanism 242 having a servo motor. As shown in FIG. 8, the hoop winding device includes an annular plate-shaped winding table 243 and one bobbin 244, and the liner 210 is inserted into the winding table 243, so that the liner 210 A hoop is wound around the outer peripheral surface.

  The hoop winding device mainly includes a winding table 243 that performs hoop winding, and a bobbin 244 that supplies the third direction fiber F3 to the winding table 243. Then, the third direction fiber F3 is guided to the outer peripheral surface of the liner 210 by the fiber guide 245 provided on the winding table 243 corresponding to the bobbin 244. The third hoop winding device 240 performs the hoop winding of the third direction fibers F3 around the liner 210 by moving the liner 210 while rotating the hoop winding device.

  With such a configuration, the third hoop winding device 240 performs the hoop winding of the third direction fibers F3 so as to be perpendicular to the axis of the liner 210.

  As shown in FIG. 9, in the filament winding apparatus 200 according to the present embodiment, the outer surface of the liner 210 has a first groove D1 inclined in the first direction, a second groove D2 inclined in the second direction, and a liner. A third groove D3 perpendicular to the axis 210 is formed. Specifically, the first groove D1 is formed on the outer circumferential surface of the liner 210 in a direction (first direction) that is wound counterclockwise in the direction opposite to the traveling direction of the liner 210. In addition, a second groove D2 is formed on the outer peripheral surface of the liner 210 so as to be inclined in a direction (second direction) wound clockwise in the direction opposite to the traveling direction of the liner 210.

  In the present embodiment, the third groove D3 is formed so as to pass through the intersection of the first groove D1 and the second groove D2 as shown in FIG. That is, the first groove D1, the second groove D2, and the third groove D3 are formed so that a large number of triangles having the same shape are represented on the outer peripheral surface of the liner 210. For this reason, also in the cylindrical net body, a large number of triangles having the same shape are formed by the first direction fibers F1, the second direction fibers F2, and the third direction fibers F3.

  By configuring as described above, the filament winding apparatus 200 can prevent the fiber F from shifting around the liner 210. That is, the first direction fiber F1 can be wound around the liner 210 along the first groove D1, and the second direction fiber F2 can be wound around the liner 210 along the second groove D2. Further, the third direction fiber F3 perpendicular to the axis of the liner 210 can be wound around the liner 210 along the third groove D3. That is, the fibers F can be arranged at desired positions on the outer peripheral surface of the liner 210, and the pitch width of the fibers F can be made uniform.

2 Winding part 10 Liner 20 First hoop winding device (first winding part)
30 Second hoop winding device (second winding part)
100 Filament winding apparatus F1 First direction fiber F2 Second direction fiber D1 First groove D2 Second groove N Cylindrical body

Claims (5)

A filament winding apparatus comprising a winding part for winding a plurality of fibers around an outer peripheral surface of a cylindrical liner, and forming a tubular network with fibers wound around the liner by the winding part,
The winding portion includes a first winding portion for winding a first-direction fiber, which is a fiber inclined in a first direction with respect to an axis of the liner, around the outer peripheral surface of the liner, and the first winding portion with respect to the liner axis. A second winding portion for winding a second-direction fiber that is a fiber inclined in a second direction that is opposite to the one direction around the outer peripheral surface of the liner;
A filament winding apparatus, wherein a first groove inclined in the first direction and a second groove inclined in the second direction are formed on an outer peripheral surface of the liner. The winding portion includes a third winding portion for winding a third direction fiber that is a fiber parallel to the axis of the liner around the outer peripheral surface of the liner,
The filament winding apparatus according to claim 1, wherein a third groove parallel to an axis of the liner is formed on an outer peripheral surface of the liner. The winding part includes a third winding part for winding a third direction fiber that is a fiber perpendicular to the axis of the liner around the outer peripheral surface of the liner,
The filament winding apparatus according to claim 1, wherein a third groove perpendicular to the axis of the liner is formed on the outer peripheral surface of the liner.   The depth of the groove formed on the outer peripheral surface of the liner is larger than the diameter of the fiber and smaller than the total height at the intersection of the fibers. The filament winding apparatus as described in any one of Claims.   The filament winding apparatus according to any one of claims 1 to 4, wherein the liner is configured to be divided in a circumferential direction.

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