JP2009226770A - Filament winding apparatus - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a technology for improving a user's work efficiency in the case of manufacturing an approximately cylindrical object using a filament winding apparatus. <P>SOLUTION: The filament winding apparatus for winding fiber around an approximately cylindrical mandrel includes a filament supply port for supplying fiber to be wound around the mandrel; a mandrel support part for supporting the mandrel rotatably; and a fiber end fixing part for fixing the tip of the fiber supplied from the filament supply port. The fiber end fixing part is rotated around a rotating shaft of the mandrel when the mandrel is supported to the mandrel support part, and the fiber end fixing part is rotated synchronously with the mandrel to wind the fiber around the mandrel. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a filament winding apparatus.

  When manufacturing a cylindrical product with fiber reinforced plastic, it may be manufactured by a filament winding method. In the filament winding method, a fiber layer is formed by winding a mandrel having a substantially cylindrical shape around a mandrel outer periphery while rotating a mandrel-impregnated yarn around the mandrel. Conventionally, when a yarn is wound around the outer periphery of a mandrel, a yarn end is fixed to a mandrel or a rotation shaft (see, for example, Patent Documents 1 and 2).

JP 2001-278543 A JP 2003-200503 A

  However, since the filament winding device is provided with a yarn feeding unit for feeding out the yarn to be wound around the mandrel, when the yarn end is fixed to the mandrel or the rotating shaft, the user sets the mandrel in the filament winding device. It is necessary to feed the yarn from the yarn feeder and fix the yarn end. However, in a state where the mandrel is set in the filament winding apparatus, the work space is narrow, so it is difficult to work. Particularly in a multi-feed type having a plurality of yarn feeders, the user must fix a plurality of yarns to the mandrel. As a result, there was a problem that workability was poor.

  Such a problem is not limited to the case of manufacturing a fiber reinforced plastic container, but is a problem common to the case of manufacturing a substantially cylindrical shape using a filament winding apparatus such as a hollow pipe.

  Therefore, the present invention has been made in view of such a problem, and an object of the present invention is to provide a technique for improving user workability when a substantially cylindrical object is manufactured using a filament winding apparatus. And

  SUMMARY An advantage of some aspects of the invention is to solve at least a part of the problems described above, and the invention can be implemented as the following forms or application examples.

[Application Example 1] A filament winding apparatus for winding a fiber around a mandrel having a substantially cylindrical shape,
A yarn feeder for supplying fibers for winding around the mandrel;
A mandrel support for rotatably supporting the mandrel;
A fiber end fixing portion for fixing the tip of the fiber supplied from the yarn feeder;
With
The fiber end fixing portion is
When the mandrel is supported by the mandrel support part, the mandrel rotates around the rotation axis of the mandrel,
The filament winding apparatus, wherein the fiber fixing unit rotates in synchronization with the mandrel so that the fiber is wound around the mandrel.

  If it does in this way, the tip of the fiber wound around a mandrel can be fixed to the filament winding device itself. Therefore, it is possible to work to fix the fiber ends before setting the mandrel on the filament winding apparatus. Therefore, the workability of the user when manufacturing a substantially cylindrical product using the filament winding apparatus can be improved.

[Application Example 2] In the filament winding apparatus according to Application Example 1,
A plurality of yarn feeders,
The same number of the fiber end fixing portion as the yarn feeder,
The plurality of fiber end fixing portions are all arranged on one circle centered on the rotation axis of the mandrel when the mandrel is supported by the mandrel support portion, and all the fiber end fixing portions are arranged. Are simultaneously rotated in synchronization with the mandrel.

  When the filament winding apparatus includes a plurality of yarn feeders, if the same number of fiber end fixing portions is provided, the fibers supplied from each yarn feeder can be respectively fixed to different fiber end fixing portions. Moreover, since all the fiber end fixing | fixed parts are arrange | positioned at the same circular shape, and all the fiber end fixing | fixed parts rotate simultaneously with a mandrel, it is the same as that the fiber end is being fixed to the mandrel. The fiber is wound around the mandrel.

[Application Example 3] In the fuel cell stack according to Application Example 1 or 2,
The fiber end fixing portion is provided so as to move on a circle having a diameter larger than the maximum diameter of the mandrel,
A guide portion is further provided between the yarn feeder and the fiber end fixing portion, and guides the fiber in the diameter direction of the mandrel so as to approach the rotation axis center of the mandrel. Filament winding device.

  In this case, for example, when a plurality of yarn feeders are provided, if the yarn feeder is made to be the same height as the fiber end fixing portion and the distance between the fibers is made larger than the mandrel, the fiber ends are made of fibers. The mandrel can be easily set after being fixed to the end fixing portion. Moreover, since the fiber can be brought close to the rotation axis center of the mandrel by providing the guide part, the fiber can be wound around the mandrel even if the fiber end fixing part is arranged at a position away from the mandrel.

Application Example 4 In the filament winding apparatus according to any one of Application Examples 1 to 3,
The fiber end fixing portion is disposed, and further includes a first rotary ring that rotates around the center of a circle,
The filament winding apparatus according to claim 1, wherein the rotation center of the first rotary ring is on a rotation axis of the mandrel when the mandrel is supported by the mandrel support.

  If it does in this way, a fiber end fixing | fixed part can be easily rotated synchronizing with a mandrel centering on the rotating shaft of a mandrel by rotating a 1st rotary ring synchronizing with a mandrel.

[Application Example 5] In the filament winding apparatus according to Application Example 3,
A first rotary ring in which the fiber end fixing portion is arranged and rotates around the center of a circle;
A second rotary ring in which the guide portion is arranged and rotates around the center of a circle;
With
The rotation center of the first rotary ring and the rotation center of the second rotary ring are on the rotation axis of the mandrel when the mandrel is supported by the mandrel support. Filament winding device.

  If it does in this way, a fiber end fixing | fixed part and a guide part can be easily rotated centering on the rotating shaft of a mandrel by rotating a 1st rotary ring and a 2nd rotary ring.

[Application Example 6] In the filament winding apparatus according to Application Example 3,
The guide part is
A filament winding apparatus characterized in that it has a pin shape and has a blade portion for cutting the fiber at its tip. A filament winding apparatus characterized by that.

  If it does in this way, a fiber will move toward the center of a mandrel along a pin, and if predetermined force is added, it will be cut with the blade with which the tip was equipped. Therefore, when the fiber is wound around the mandrel and the fiber is fixed to the mandrel, a predetermined force is applied so that the fiber is cut by the blade portion. Can be cut.

Application Example 7 In the filament winding apparatus according to Application Example 5,
The filament winding apparatus according to claim 2, wherein a part of the second rotary ring is cut and a gap is left.

  In this case, when the rotation axis of the mandrel passes through the center of the second rotary ring, the rotation axis of the mandrel enters the second rotary ring from the gap provided in the second rotary ring. Since it can be inserted, the mandrel can be easily set.

A. Example:
A1. Example configuration:
FIG. 1 is an explanatory diagram showing a configuration of a filament winding apparatus 100 as an embodiment of the present invention. In this embodiment, the filament winding apparatus 100 manufactures a high-pressure tank that is filled with compressed hydrogen. In this embodiment, a high-pressure tank including a nylon resin liner and an outer shell made of CFRP (Carbon Fiber Reinforced Plastics) is manufactured.

  As shown in FIG. 1, the filament winding apparatus 100 includes mandrel support portions 20 and 22, a first rotary ring 30, a second rotary ring 40, creels 50 and 60, rails 58 and 68, and the like. The control unit 90 is mainly provided.

  The mandrel support parts 20 and 22 support the mandrel 10 described later rotatably. The creels 50 and 60 are devices for feeding out the fibers by controlling the tension of the fibers. The creel 50 includes yarn feeders 52u and 52l, and feeds carbon fiber through the yarn feeders 52u and 52l with a predetermined tension. Further, as shown in the figure, the creel 50 can move along the rail 58 in the direction of the arrow shown in the figure (the length direction of the mandrel 10 shown in FIG. 2 described later). Further, the creel 50 can move the yarn feeders 52u and 52l in the diameter direction of the mandrel 10 described later. The creel 50 is provided with a resin tank for impregnating the carbon fiber with the resin therein, and feeds out the carbon fiber impregnated with the resin. Similarly, the creel 60 includes two yarn feeders 62u and 62l, and feeds resin-impregnated carbon fibers from two locations. For example, when using a prepreg resin impregnated with a resin in advance, the creels 50 and 60 may be configured not to include a resin tank.

  That is, the filament winding apparatus 100 of the present embodiment is a multi-feed filament winding apparatus that includes four yarn feeders. In the present embodiment, carbon fibers are used as the fibers wound around the mandrel 10, but various other strong fibers such as glass fibers can be used. Moreover, although epoxy resin is used as resin impregnated in carbon fiber, it is not limited to epoxy resin, and other resins having high strength resistance and high environmental resistance may be used. Further, the liner is not limited to nylon resin, and a liner having a gas barrier property made of another resin may be used. A metal liner may also be used.

  The control unit 90 controls the rotation of the mandrel 10 and the movement of the creels 50 and 60. The control unit 90 includes a control panel 92, and the user operates the control panel to control yarn feeding from the creel 50 (including fiber tension, yarn feeder movement, creel 50 and 60 movement). Then, the mandrel 10 is rotated and stopped.

  In FIG. 1, as a preparation stage when a high-pressure tank is manufactured by the filament winding method, the user operates the control panel 92 and passes the epoxy resin-impregnated carbon fiber through the yarn feeders 52u, 52l, 62u, 62l. The state which extended and the front-end | tip of the extended fiber was fixed to the fiber end fixing | fixed part (not shown) with which the 1st rotary ring 30 mentioned later is provided is shown.

  FIG. 2 is an explanatory view showing a state where the mandrel 10 is set in the filament winding apparatus 100. FIG. 2 shows a state where the carbon fiber is being wound around the mandrel 10. The mandrel 10 has a hollow substantially cylindrical shape. In this embodiment, a liner made of nylon resin is used as the mandrel 10. A rotating shaft 14 that rotates the mandrel 10 passes through the center of the cross-sectional circle of the mandrel 10 in the length direction, and the mandrel 10 is fixed to the rotating shaft 14. Then, the rotating shaft 14 is supported by the mandrel support portions 20 and 22 of the filament winding apparatus 100, so that the mandrel 10 is set in the filament winding apparatus 100. The rotating shaft 14 is rotated by the mandrel support portions 20 and 22, and the mandrel 10 is rotated accordingly. The rotating shaft 14 is not limited to a configuration that penetrates the mandrel 10, and two rotating shafts may be fixed to both ends of the mandrel 10, respectively.

  FIG. 3 is an explanatory diagram schematically showing the configuration of the first rotary ring 30. 3A is a plan view, and FIG. 3B is a cross-sectional view taken along the line CC in FIG. 3A. As shown in FIG. 3A, the first rotary ring 30 includes a first rotary ring base portion 31 having a ring shape, and fibers provided on the inner periphery of the first rotary ring base portion 31. End fixing portions 32, 33, 34, and 35. As shown in FIG. 3A, the fiber end fixing portions 32, 33, 34, and 35 have a pin shape and are arranged at equal intervals on the inner periphery of the first rotary ring base portion 31. In FIG. 3B, the positions of the fiber end fixing portions 32 and 33 are simply shown as circles. The user fixes the fiber end by connecting it to the fiber end fixing portion 32.

  FIG. 4 is an explanatory diagram schematically showing the configuration of the second rotary ring 40. 4A is a plan view, and FIG. 4B is an enlarged schematic view of the X1 portion in FIG. 4A. As shown in FIG. 4A, the second rotary ring 40 includes a second rotary ring base 41 having a C-ring shape in which a part of the O-ring is cut out to form a cut 41C. And fiber guide portions 42 to 45 provided on the inner periphery of the second rotary ring base portion 41. As shown in the drawing, the fiber guide portions 42 to 45 include four pins, and the second rotary type so that each pin forms a predetermined angle with respect to the diameter of the second rotary ring base portion 41. Arranged at equal intervals on the inner periphery of the ring base 41. In addition, the fiber guide parts 42-45 in a present Example correspond to the guide part in a claim.

  And the thread cutting blade 45c is provided in the front-end | tip of the pin of the fiber guide part 45, as shown in FIG.4 (b). Similarly, a thread cutting blade is provided at the tip of each pin of the fiber guide portions 42 to 45. As the fiber guide portions 42 to 45 are provided with a thread cutting blade, the fibers are automatically cut as will be described later.

  As shown in FIG. 2, the first rotary ring 30 and the second rotary ring 40 form a ring shape (O-ring and C-ring) having substantially the same diameter, and the center of the circle is The filament winding apparatus 100 is arranged in parallel in a matched state. As shown in the figure, the mandrel 10 is supported so that the rotation shaft 14 passes through the centers of the two circles.

  In this embodiment, the fibers F2, F3, F4, and F5 supplied from the yarn feeders 52u, 52l, 62u, and 62l are supplied in a state where four fibers are bundled. The fiber F2 fed out from the yarn feeder 52u is divided into four by the user, passed between the pins of the fiber guide portion 42, bundled again, and tied to the fiber end fixing portion 32. Similarly, the fibers fed out from other yarn feeders are tied to the fiber end fixing portion through the fiber guide portion. FIG. 1 shows a state in which the ends of the fibers F2 and the like fed from the yarn feeders 52u and the like are respectively connected to the fiber end fixing portions 32 of the first rotary ring 30 in this way.

  As described above, since the second rotary ring base 41 has a C-ring shape, the second rotary ring 40 has a cut ring 41C through the rotary shaft 14, as shown in FIG. The rotating shaft 14 can be set on the mandrel support portions 20 and 22. In FIG. 1, the cut 41 </ b> C of the second rotary ring 40 is arranged on the creel 60 side (in FIG. 1, hidden by the first rotary ring 30). In a state where the fiber end is fixed by being tied to the fiber end fixing portion, the rotating shaft 14 is passed through the cut 41C of the second rotary ring 40 from the creel 60 side in FIG. By passing between F4 and F5, the mandrel 10 can be set in the filament winding apparatus 100 after fixing the fiber end to the fiber end fixing portion. Therefore, since the user can perform the operation of fixing the fiber end in a state where the mandrel 10 is not set, the fiber end can be easily fixed.

A2. Example operation:
5-8 is explanatory drawing for demonstrating the operation | movement of a present Example. 5-8 (b) shows the mandrel 10 as viewed from the mandrel support 22 side. In FIGS. 5 to 8B, the first rotary ring 30 is not shown in order to clearly show the configuration of the second rotary ring 40. 5-8, as shown in FIG. 5B, the left side is the A side and the right side is the B side with a plane passing through the rotation shaft 14 of the mandrel 10 as a boundary. 5 to 8 show the positions of the yarn feeders 52u and 52l, the fixing portions 32 and 33, the fiber guide portions 42 and 43, and the fibers F2 and F3 with respect to the mandrel 10. 5A to 8A, when the yarn feeders 52u and 52l, the fixing portions 32 and 33, the fiber guide portions 42 and 43, and the fibers F2 and F3 are on the A side, they are solid lines, and the B side In the case of, it is indicated by a broken line. The operation of this embodiment will be described with reference to FIGS.

  Initially, as shown in FIG. 5B, the yarn feeders 52u, 52l, 62u, 62l are disposed outside the second rotary ring 40. Therefore, as shown in FIG. 5A, the fiber is stretched with a predetermined tension at a position away from the mandrel 10.

  Hereinafter, the operation of the present embodiment will be described by paying attention to the yarn feeders 52u and 52l, the fixing portions 32 and 33, the fiber guide portions 42 and 43, and the fibers F2 and F3. As shown in FIGS. 5A and 5B, the yarn feeders 52u and 52l, the fixing portions 32 and 33, the fiber guide portions 42 and 43, and the fibers F2 and F3 are arranged on the B side. .

  The user operates the control panel 92 to start winding the fiber around the mandrel 10. The filament winding apparatus 100 does not rotate the first rotary ring 30 and the mandrel 10, but rotates only the second rotary ring 40 as indicated by an arrow in FIG. 521 is moved in the diameter direction of the mandrel 10 toward the rotating shaft 14, as indicated by arrows in FIGS.

  As shown in FIG. 6B, when the second rotary ring base 41 is rotated about 30 degrees with respect to FIG. 5 and the yarn feeders 52u and 52l are moved to the vicinity of the mandrel 10, FIG. As shown to (a), the fibers F2 and F3 move so that it may approach a mandrel along the fiber guide parts 42 and 43, respectively. Then, the fibers F2 and F3 are stretched along the trunk portion of the mandrel 10 as shown in the drawing. At this time, as shown in FIGS. 5A and 5B, the yarn feeders 52u and 52l, the fixing portions 32 and 33, the fiber guide portions 42 and 43, and the fibers F2 and F3 are arranged on the B side. Has been.

  Further, only the second rotary ring 40 is rotated about 180 degrees with respect to FIG. 6B, as indicated by an arrow in FIG. 6B, and the yarn feeders 52u, 52l are moved to FIG. As indicated by the arrows in a) and (b), it is moved in the diametrical direction toward the rotating shaft 14. If it does so, as shown to Fig.7 (a), (b), the fiber guide parts 42 and 43 will be arrange | positioned at the A side. Since the yarn feeders 52u and 52l and the fiber end fixing portions 32 and 33 are disposed on the B side, the fiber F2 is disposed on the A side along the trunk portion of the mandrel 10 as shown in FIG. The fiber F3 is adhered to the B side with a predetermined tension along the body portion of the mandrel 10.

  The positions of the yarn feeders 62u and 62l, the fiber guides 44 and 45, and the fibers F4 and F5 with respect to the mandrel 10 are the positions of the yarn feeders 52u and 52l, the fiber guides 42 and 43, and the fibers F2 and F3 described above. , Symmetrical with respect to the rotation axis 14. Accordingly, the first rotary ring 30 and the mandrel 10 are not rotated from the position shown in FIG. 5 to the position shown in FIG. 7, and only the second rotary ring 40 is indicated by an arrow in FIG. When the yarn feeders 62u and 62l are moved in the diametrical direction toward the rotation shaft 14, the fibers F2, F3, F4, and F5 overlap each other and are fixed to the mandrel 10. The

  Thereafter, the first rotary ring 30 and the second rotary ring 40 are rotated in synchronism with the mandrel 10, and the yarn feeders 52u, 52l, 62u, 64l are set in the same manner as in the case of conventional helical winding. When moved as shown by arrows D1 and D2 in FIG. 8A, fibers F2 to F5 overlap and wrap around the mandrel 10 as shown in FIG. 8B. It will be fixed.

  As shown in FIG. 8 (a), the yarn feeder 52u is moved once along the arrow D1 shown in FIG. 8 (a) from the state closest to the axial center of the mandrel 10. When the fiber F2 overlaps and the yarn feeder 52u moves toward the rotary shaft 14, the fiber F2 is pressed from above by the fiber F2 near the yarn feeder 52u, so that the fiber F2 is the above-described FIG. 4B. A force that can be cut by the thread cutting blade shown in FIG. Therefore, F2 is automatically cut by the thread cutting blade. Similarly, F3, F4, and F5 also move once along the arrow D1 shown in FIG. 8A from the state in which the yarn feeders 52l, 62u, and 64l are closest to the axial center of the mandrel 10, respectively. In the same way, it will be automatically cut off as well. At this time, the fibers F2 to F5 are already fixed to the mandrel 10 so as to overlap each other. That is, even if the fibers F2 to 5 are cut, the fibers F2 to 5 are fixed to the mandrel, so that the tension of the fibers F2 and the like supplied from the yarn feeder 52l and the like is maintained. Therefore, after that, the rotation of the first rotary ring 30 and the second rotary ring 40 is stopped, the mandrel 10 is rotated, and the yarn feeders 52u, 52l, 62u, 64l are indicated by arrows D1, D2. In addition, by repeating the movement, the fiber is wound around the mandrel 10 by helical winding as in the case of performing conventional helical winding.

A3. Effects of the embodiment:
In the filament winding apparatus 100 of the present embodiment, the fiber ends are fixed to the first rotary ring 30 provided in the filament winding apparatus 100. Therefore, the fiber end can be fixed to the filament winding apparatus 100 before setting the mandrel 10 to the filament winding apparatus 100. Therefore, as compared with the case where the fiber end is fixed to the mandrel or the rotating shaft that rotates the mandrel as in the prior art, the space for setting the mandrel is vacant, so the work space is large, and the filament winding apparatus 100 The user can easily fix the fiber end. Therefore, the workability of the user of the filament winding apparatus 100 is improved.

  And according to the filament winding apparatus 100 of the present embodiment, since the fibers are automatically fixed to the mandrel 10 using the first rotary ring 30 and the second rotary ring 40, Similarly to the above, by rotating the mandrel 10 and moving the yarn feeder 521 and the like, the fiber can be wound around the mandrel 10 by helical winding as in the conventional case.

  In the filament winding apparatus 100 of the present embodiment, the second rotary ring 40 is formed in a C ring shape. Therefore, the mandrel 10 can be easily set on the filament winding apparatus 100 by putting the rotating shaft 14 into the second rotating ring 40 through the cut 41C of the second rotating ring 40. it can. Therefore, user workability is improved.

  Further, in the filament winding apparatus 100 of the present embodiment, the diameters of the first rotary ring 30 and the second rotary ring 40 are larger than the diameter of the mandrel 10. Therefore, if the yarn feeder 52l or the like is arranged on the outer periphery of the mandrel 10 and the fiber end is fixed to the fiber end fixing part 32 or the like, for example, the distance between the fiber F4 and the fiber F5 is larger than the diameter of the mandrel. Become. Normally, when setting the mandrel 10, the mandrel 10 is moved in the x-axis direction from the creel 50 or the creel 60 side and set. According to the filament winding apparatus 100 of the present embodiment, since the mandrel can be set between the fibers F4 and F5, the mandrel 10 can be easily set on the filament winding apparatus 100.

B. Variations:
The present invention is not limited to the above-described examples and embodiments, and can be implemented in various modes without departing from the gist thereof. For example, the following modifications are possible.

  (1) In the above-described embodiment, the filament winding apparatus 100 including four yarn feeders is shown. However, the number of yarn feeders is not limited to four, and may be one or more. Even in such a case, the filament winding apparatus 100 includes both a yarn feeder for supplying fibers and a fiber end fixing portion for fixing the fiber ends, so that the mandrel can be set in the filament winding apparatus. In addition, since the fiber ends can be fixed, the user's workability is improved.

  (2) In the above-described embodiment, the filament winding apparatus 100 includes the first rotary ring 30 in which the fiber end fixing portion 32 and the like are disposed. However, the filament winding apparatus 100 includes the first rotary ring 30. You may make it the structure which is not. Moreover, the shape of the fiber end fixing | fixed part 32 is not limited to an above-described Example. For example, the fiber end fixing portion 32 may be configured to sandwich the fiber end with a clip or the like, or may be fixed with a known fixing means.

  FIG. 9 is an explanatory diagram schematically showing a configuration of a modification example of the fiber end fixing portion 32 and the like. For example, the fiber end fixing portion 32A and the like of Modification 1 shown in FIG. 9A has a claw shape that is formed by cutting a base 31A that has a disk shape. The user can fix the fiber end by hooking the fiber end on the fiber end fixing portion 32A having a claw shape. The pedestal 31A is provided with an insertion hole 31h through which the rotary shaft 14 is inserted. The base 31A is configured to rotate around the center of the circle. Therefore, when the pedestal 31A is used instead of the first rotary ring 30 of the above-described embodiment, the fiber end fixing portion 32A and the like rotate around the rotation shaft 14, and thus the same effect as the above-described embodiment. Can be obtained.

  For example, the fiber end fixing portion 32A or the like of Modification 2 shown in FIG. 9B is provided in the shape of a columnar protrusion at the end of a pedestal 31B having a cross (+) shape. The user can fix the fiber end by connecting the fiber end to the fiber end fixing portion 32B. The base 31B is provided with an insertion hole 31h through which the rotary shaft 14 is inserted. The pedestal 31B is configured to rotate around the center of the insertion hole 31h. Therefore, when the pedestal 31B is used instead of the first rotary ring 30 of the above-described embodiment, the fiber end fixing portion 32B and the like rotate around the rotation shaft 14, and thus the same effect as the above-described embodiment. Can be obtained.

  (3) In the above-described embodiment, and in the above-described embodiment, the filament winding apparatus 100 includes the second rotary ring 40 in which the fiber guide portion 42 and the like are disposed. The configuration is not limited to the above-described embodiment, and any configuration may be used as long as the fiber can approach the rotation center of the mandrel.

  FIG. 10 is an explanatory diagram schematically showing a configuration of a modification example of the fiber guide portion 42 and the like. For example, the fiber guide portion 42A and the like of Modification 3 shown in FIG. 10 has a slit shape provided on a base 41A having a disk shape. Further, the base 41A is provided with an insertion hole 41h through which the rotary shaft 14 is inserted. The pedestal 41A is configured to rotate around the center of the insertion hole 41h. Therefore, when the pedestal 41A is used instead of the second rotary ring 40 of the above-described embodiment, the user passes the fiber through each slit of the fiber guide portion 42A or the like, and the above-described embodiment. Similarly, the fiber moves along the slit toward the center of rotation of the mandrel. Therefore, the same effect as the above-described embodiment can be obtained.

  (4) In the above-described embodiment, the second rotary ring 40 having a C-ring shape is used, but the shape of the second rotary ring 40 may be an O-ring shape. For example, the mandrel 10 may be configured to be set in the filament winding apparatus 100 without crossing the second rotary ring 40.

  (5) In the above-described embodiment, the fiber guide portion 42 and the like are provided with a thread cutting blade at the tip, but may be configured without a thread cutting blade. In the case of a configuration that does not include a thread cutting blade, the user may cut the thread at a predetermined timing. In addition, a cutting unit (cutter, scissors, etc.) that cuts the fiber is provided between the fiber guide unit and the yarn feeder, and the control unit 90 controls the cutting unit to cut the fiber at a predetermined timing. It may be configured.

  (6) In the above-described embodiment, the filament winding apparatus 100 is illustrated as one that manufactures a high-pressure tank filled with compressed hydrogen. However, the present invention is not limited to the case of manufacturing a high-pressure tank. The present invention can be applied to a filament winding apparatus that manufactures a substantially cylindrical product such as a pipe.

  (7) In the above-described embodiment, the filament winding apparatus 100 includes the same number of fiber end fixing portions as the number of yarn feeders, but the number of fiber end fixing portions is not the same as the number of yarn feeders, but at least Good. For example, one fiber end fixing portion may be provided for a plurality of yarn feeders. Even if it does in this way, since a fiber can be fixed to the mandrel 10, it can wind a fiber around a mandrel by helical winding by rotating a mandrel and moving a yarn feeder similarly to the past. it can.

It is explanatory drawing which shows the structure of the filament winding apparatus 100 as an Example of this invention. It is explanatory drawing which shows the state in which the mandrel 10 was set to the filament winding apparatus 100. FIG. 4 is an explanatory diagram schematically showing a configuration of a first rotary ring 30. FIG. 4 is an explanatory diagram schematically showing a configuration of a second rotary ring 40. FIG. It is explanatory drawing for demonstrating the operation | movement of a present Example. It is explanatory drawing for demonstrating the operation | movement of a present Example. It is explanatory drawing for demonstrating the operation | movement of a present Example. It is explanatory drawing for demonstrating the operation | movement of a present Example. It is explanatory drawing which shows roughly the structure of the modification of fiber end fixing | fixed part 32 grade | etc.,. It is explanatory drawing which shows roughly the structure of modification examples, such as the fiber guide part.

Explanation of symbols

DESCRIPTION OF SYMBOLS 14 ... Rotating shaft 20, 22 ... Mandrel support part 30 ... 1st rotary ring 31 ... 1st rotary ring base 31A, 31B ... Base 31h ... Insertion hole 32 32A, 32B ... Fiber end fixing part 40 ... Second rotary ring 41 ... Second rotary ring base 41A ... Base 41h ... Insertion hole 42, 42A, 43, 44 45 ... Fiber guide 45c ... Blade 50, 60 ... Creel 52l, 52u, 62l, 62u ... Yarn feed port 58 ... Rail 90 ... Control unit 92 ... Control panel 100 ... Filament winding equipment F2, F3, F4, F5 ... fiber

Claims (7)

A filament winding apparatus for winding a fiber around a substantially cylindrical mandrel,
A yarn feeder for supplying fibers for winding around the mandrel;
A mandrel support for rotatably supporting the mandrel;
A fiber end fixing portion for fixing the tip of the fiber supplied from the yarn feeder;
With
The fiber end fixing portion is
When the mandrel is supported by the mandrel support part, the mandrel rotates around the rotation axis of the mandrel,
The filament winding apparatus, wherein the fiber fixing unit rotates in synchronization with the mandrel so that the fiber is wound around the mandrel. The filament winding apparatus according to claim 1, wherein
A plurality of yarn feeders,
The same number of the fiber end fixing portion as the yarn feeder,
The plurality of fiber end fixing portions are all arranged on one circle centered on the rotation axis of the mandrel when the mandrel is supported by the mandrel support portion, and all the fiber end fixing portions are arranged. Are simultaneously rotated in synchronization with the mandrel. The fuel cell stack according to claim 1 or 2,
The fiber end fixing portion is provided so as to move on a circle having a diameter larger than the maximum diameter of the mandrel,
A guide portion is further provided between the yarn feeder and the fiber end fixing portion, and guides the fiber in the diameter direction of the mandrel so as to approach the rotation axis center of the mandrel. Filament winding device. The filament winding apparatus according to any one of claims 1 to 3,
The fiber end fixing portion is disposed, and further includes a first rotary ring that rotates around the center of a circle,
The filament winding apparatus according to claim 1, wherein the rotation center of the first rotary ring is on a rotation axis of the mandrel when the mandrel is supported by the mandrel support. The filament winding apparatus according to claim 3, wherein
A first rotary ring in which the fiber end fixing portion is arranged and rotates around the center of a circle;
A second rotary ring in which the guide portion is arranged and rotates around the center of a circle;
With
The rotation center of the first rotary ring and the rotation center of the second rotary ring are on the rotation axis of the mandrel when the mandrel is supported by the mandrel support. Filament winding device. The filament winding apparatus according to claim 3, wherein
The guide part is
A filament winding apparatus characterized in that it has a pin shape and has a blade portion for cutting the fiber at its tip. The filament winding apparatus according to claim 5, wherein
The filament winding apparatus according to claim 2, wherein a part of the second rotary ring is cut and a gap is left.

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