JP6662314B2 - Fiber feeder - Google Patents

Description

  The present invention relates to a fiber supply device for supplying a fiber bundle around a cylindrical container having a dome-shaped portion at an end while moving the fiber bundle along the axial direction of the container.

  For example, as a method of manufacturing a high-pressure container used for storing or supplying hydrogen or the like, a carbon fiber bundle impregnated with an uncured thermosetting resin by a filament winding method on a peripheral surface of a container (liner) is formed at a predetermined pitch width. There is known a manufacturing method in which a resin is cured after forming by winding to form a fiber reinforced resin layer.

  Patent Document 1 describes a tank manufactured by such a filament winding method, in which a resin-containing fiber bundle is surrounded around a cylindrical container (liner) having a dome-shaped portion at an end. Is supplied to the outer peripheral surface of the container (liner) using a fiber supply device (supply unit) that moves in the axial direction of the container (liner). Patent Literature 2 describes an example of an eye cutlet used in such a fiber supply device.

  FIG. 4 shows an example of the above-described conventionally known fiber supply apparatus A used as a filament winding apparatus for manufacturing a high-pressure container. An appropriate number (four in FIG. 4) of bobbins 12 in which fibers 11 are wound are provided. A plurality of fibers 11 having a stored krill stand 10 and being unreeled from each bobbin 12 pass through a tension control device 13 and are sent to an appropriate fiber converging jig 20 from which a fiber bundle guiding jig 20 is provided. It is sent to Aikuchi 30.

  The Aikuchi 30 is conventionally known, for example, as described in Patent Document 2, and as shown in a plan view of FIG. 5, an appropriate number of Aikuchi 30 are arranged in parallel in the feeding direction of the fiber 11 (in FIG. Three (3) guide rolls 31 are arranged, and an appropriate number (four in the illustrated case) of fibers 11 are arranged in a posture arranged in the width direction of the guide rolls. In FIG. 5, reference numeral 32 denotes an aligning opening for aligning the fibers so as to be easily wound around the container (liner) 1, and is arranged as necessary.

  The plurality (four) of the fibers 11 are wound as a fiber bundle 14 around the outer peripheral surface of a cylindrical container (liner) 1 having a dome-shaped portion at an end while being guided as necessary by the eyelet 30. As shown in FIG. 6, the fiber bundle 14 that has exited the eyelet 30 is sent out toward the container (liner) 1 in a posture in which the fibers 11 are arranged side by side in the lateral direction. It is wound.

  The Aikuchi 30 reciprocates in the axial direction of the cylindrical container (liner) 1 by the movement of the fiber supply device A, moves toward and away from the cylindrical container (liner) 1, and moves the fiber 11. Is controlled so as to perform a movement that rotates with respect to the movement direction.

JP 2008-032088 A JP-A-2007-90697

  In recent years, in manufacturing a tank by a filament winding method as described in Patent Document 1, it is required from the viewpoint of improving production capacity to reduce the time required for winding a fiber bundle without deteriorating the quality of a final product. Have been.

  As a method for this, a method of increasing the winding speed can be considered, but in that case, the speed at which the fiber is fed from the bobbin increases, and there is a possibility that the equipment may be stopped due to damage to the fiber (such as fluff or entanglement). Further, there is a possibility that the winding position may vary due to an increase in the load on the equipment. For these reasons, increasing the winding speed is not a practical solution.

  As another method, it is conceivable to simultaneously wind a larger number of fibers around the outer peripheral surface of the container. The Ikuchi 30 used for guiding the fibers in the conventional fiber supply device has a shape in which a plurality of (four in the illustrated) fibers 11 are arranged in a horizontal example, as shown in FIG. (For example, eight fibers) are simultaneously wound around the outer peripheral surface of the container 1, as shown in FIG. 7, the number of fibers arranged in a horizontal row is doubled, and the fibers are simultaneously wound around the outer peripheral surface of the container. The width of the fiber bundle is increased by the number of fibers. 6 and 7, reference numeral 1 denotes a cylindrical container provided with a dome-shaped portion 2 at an end portion. As described above, the fibers 11 supplied from a plurality of bobbins are guided by the needles 30 and the container 1 Is wound around the outer peripheral surface of the container 1 as a fiber bundle 14 with the rotation of.

  When the width of the fiber group passing through the eyelet 30 increases, the width of the fiber bundle 14 increases, and when the fiber bundle 14 is wound on the outer peripheral surface of the container 1, inconvenience particularly occurs in the winding at the dome-shaped portion 2. Inevitable. That is, when the width of the fiber bundle 14 is small, as shown in FIG. 6, the winding without irregularities progresses following the shape of the dome-shaped portion 2 of the container 1. When it becomes wider, as shown in FIG. 7, it becomes difficult for the tension of the fiber bundle 14 to follow the shape of the dome-shaped portion 2, and it becomes difficult to wind along the dome-shaped portion 2. As a result, irregularities are likely to be formed on the winding surface, which may lead to deterioration of the quality of the final product. Therefore, a method of simply expanding the width of the eyelet 30 and simultaneously winding a larger number of fibers 11 around the outer peripheral surface of the container 1 is not a practical solution for improving the production capacity.

  The present invention has been made in view of the above circumstances, and in the axial direction of the container through the fiber bundle guiding Ikuchi member around the cylindrical container having a dome-shaped portion at the end of the fiber bundle. It is an object of the present invention to provide a more improved fiber feeder that can surely increase the production capacity without lowering the quality of an obtained final product in a fiber feeder that feeds while moving along. .

  The fiber supply device according to the present invention is a fiber supply device that supplies a fiber bundle around a cylindrical container having a dome-shaped portion at an end thereof while moving the fiber bundle along an axial direction of the container through a fiber bundle guiding ikuchi member. The eyelet member has a configuration in which the eyelets are stacked in two or more stages, and a plurality of fibers are passed through in a posture arranged in the width direction in each stage. Aikuchi is characterized in that independent position and attitude control is possible.

  By using the fiber supply device according to the present invention, the operation of winding the fiber bundle around a cylindrical container having a dome-shaped portion at the end can be shortened without reducing the quality of the obtained product. It becomes possible.

The figure explaining one Embodiment of the fiber supply apparatus by this invention. The figure which shows the state which a fiber bundle is wound around a container. The figure which expands and shows the winding state in the dome shape part of a container. The figure explaining the state which winds a fiber bundle around a container using the conventional fiber supply device. FIG. 7 is a view for explaining a fiber guide Ikuchi used in a conventional fiber supply device. The figure explaining the state which winds a fiber bundle around the dome shape part of a container with the conventional fiber supply device. The figure for demonstrating the inconvenience in the conventional fiber supply apparatus.

  Hereinafter, an embodiment of the present invention will be described.

  FIG. 1 shows a filament winding device for manufacturing a high-pressure container as one example of an embodiment in which the fiber supply device 100 according to the present invention is used. In FIG. 1, reference numeral 10 denotes a krill stand, which has an appropriate number (four in the figure) of bobbins 12 wound with fibers 11, and the four fibers 11 drawn out from each bobbin 12 are provided with a tension control device. After passing through 13, it is sent to a fiber converging jig 20 having a conventionally known configuration. The fiber converging jig 20 converges the fiber 11 supplied from the bobbin 12 to form a fiber bundle 14 composed of a plurality of (here, four) fibers. The fiber bundle 14 composed of four fibers enters the shape 30 described above with reference to FIG. 5 and is wound therefrom around the cylindrical container 1 having the dome-shaped portion 2 at the end as a liner. As described above, the krill stand 10, the fiber convergence jig 20, and the eyelet 30 may be the same as those in the conventional fiber supply device A described with reference to FIG.

  The fiber supply device 100 has another krill stand 10a. The crill stand 10a is the same as the krill stand 10, has four bobbins 12a wound with the fibers 11a, and the four fibers 11a drawn out from each bobbin 12a pass through the tension control device 13a, It is sent to the fiber convergence jig 20a. The fiber convergence jig 20a converges on a fiber bundle 14a made of four fibers, and the fiber bundle 14a made of four fibers enters into the Ikuchi 30a, from which it is wound around the cylindrical container 1 described above. The fiber convergence jig 20a and the arbor 30a are the same as the fiber convergence jig 20 and the arbor 30 described above.

  The cylindrical container 1 has a rotation axis L in the longitudinal direction, and desired rotation is given to the rotation axis L by an appropriate rotation driving device (not shown). The fiber bundle 14 and the fiber bundle 14a sent out from the two eyelets 30 and the eyelet 30a are simultaneously wound around the outer peripheral surface of the container 1 when wound around the container 1. Note that the direction of the rotation axis L is called an X-axis direction.

  As shown in FIG. 1, the fiber converging jig 20 and the fiber converging jig 20 a and the Aikuchi 30 and the Aikuchi 30 a are vertically arranged in two stages on the side surface of the cylindrical container 1. At least the Ikuchi 30 and the Ikuchi 30a receive a signal from the control unit 40, and their positions and attitudes with respect to the cylindrical container 1 are independently controlled.

  Specifically, a movement (forward-backward movement) a in the Z-axis direction, which is a direction approaching or moving away from the cylindrical container 1, a movement (traverse) b in the direction along the X-axis, and a movement around the forward-backward movement axis The rotation (oscillating movement) c of each of them is controlled independently. Note that the back-and-forth movement a, the traverse b, and the oscillating movement c in the Ikuchi 30 or the Ikuchi 30a have already been performed in the Ikuchi in the conventional fiber supply device. It differs from the conventional fiber supply device in that two Aikuchi, that is, Ikuchi 30 and Aikuchi 30a, can be performed independently of each other.

  FIG. 2 shows the fiber supply device 100 shown in FIG. 1 and the container 1 with the rotation axis L in the horizontal direction as viewed from above. The fiber bundle 14 and the fiber bundle 14a, each of which has two Aikuchi 30 and four fibers coming out from the Aikuchi 30a, are wound on the outer peripheral surface of the cylindrical container 1 in a state of being vertically overlapped. Can be In addition, the fiber bundle 14 and the fiber bundle 14a to be sent out can be individually adjusted in tension at the time of winding by controlling the position and the posture of the Ikuchi 30 and the Ikuchi 30a passing therethrough independently. Becomes

  In FIG. 2, the fiber bundle 14 and the fiber bundle 14 a are depicted as being shifted in the horizontal direction for the sake of clarity. Can be

  Therefore, two layers of the fiber bundles 14 and 14a can be simultaneously wound around the container 1 in one traverse, and the production efficiency is doubled as compared with the case of a single tier. Since the tension of the fiber bundle 14 and the fiber bundle 14a forming each layer can be independently controlled, the two-layer fiber bundle 14 and the fiber bundle 14a wound simultaneously have the desired conditions. Be satisfied.

  This is particularly effective for winding the fiber bundle in the dome-shaped portion 2 of the container 1. That is, as shown in FIG. 3, the two fiber bundles 14 and 14a have the same width as that of the conventional four-fiber, and appropriate tension control is possible as described above. Therefore, as shown in FIG. 7, the phenomenon that the tension follow-up becomes difficult in the dome-shaped portion 2 does not occur, and the dome is formed in a state where the upper fiber bundle 14 is laminated on the lower fiber bundle 14a. The winding around the shape portion 2 progresses, and the fiber bundle 14 and the fiber bundle 14a both follow the outer shape of the dome shape portion 2 faithfully. Thereby, for example, it is possible to manufacture a high-pressure container at twice the speed without deteriorating its quality, and the production efficiency is improved.

  In FIG. 3, as in FIG. 2, the fiber bundle 14 and the fiber bundle 14 a are drawn so as to be shifted in the horizontal direction. However, in actual winding, the fiber bundle 14 is also wound in a state of being vertically overlapped.

  In the above-described embodiment, the fiber bundle is described as being made of four fibers, but this is merely an example, and the size of the cylindrical container 1 having the dome-shaped portion 2 at the end to be wound is set. In addition, an appropriate number can be set. Also, the case where the eye cut is divided into two stages and stacked and arranged has been described, but this is also an example and three or more stages may be used. Further, in addition to the eyelet 30 (30a), the posture of the fiber convergence jig 20 (20a) may be controlled according to the eyelet 30 (30a).

  Further, the control of the position and the posture of the eyelet 30 (30a) may be such that all of the forward / backward movement a, the traverse b, and the swing movement c may be performed simultaneously, or one of them may be selectively performed. . In particular, the traverse b is such that the fiber supply device 100 itself moves along the axial direction of the container 1 and is often unnecessary. In addition, the eyelet 30 (30a) may have a conventionally known aligning opening 32 (see FIG. 5).

  In the present invention, a member provided with at least the eyelet 30 and the eyelet 30a is referred to as an eyelet member. As described above, the eyelet member has a configuration in which the eyelet is laminated in two or more stages, and the eyelet in each stage is A plurality of fibers pass in a posture arranged in the width direction, and the positions and postures of the ikuchi at each stage can be controlled independently.

  The fibers 11 (11a) used in the fiber supply device 100 according to the present invention may be pre-impregnated with an uncured thermosetting resin while being wound on the bobbin 12 (12a). ) May be impregnated with resin by passing through a resin bath (not shown) on the way from the fiber convergence jig 20 (20a).

  Examples of the resin include an epoxy resin, a modified epoxy resin, an unsaturated polyester resin, a polypropylene resin, and the like. Among these, an epoxy resin or an unsaturated polyester resin is more preferable.

  Examples of the fibers include inorganic fibers such as metal fibers, glass fibers, carbon fibers, and alumina fibers, synthetic organic fibers such as aramid fibers, and natural organic fibers such as cotton. These fibers can be used alone or in combination (as a mixed fiber). Among them, carbon fibers and aramid fibers are particularly preferred.

100 ... fiber supply device according to the present invention,
1. Cylindrical container (liner) with a dome-shaped part at the end
2 ... Dome-shaped part of container,
10, 10a ... Krill stand,
11, 11a ... fiber,
12, 12a ... bobbin,
13, 13a ... tension control device,
14, 14a ... fiber bundle,
20, 20a ... fiber convergence jig,
30, 30a: Aikuchi for guiding fiber bundles,
31 ... guide roll,
40 ... control unit,
L: Rotating axis of cylindrical container.

Claims (1)

A fiber supply device for supplying a fiber bundle around a cylindrical container having a dome-shaped portion at an end thereof while moving the fiber bundle along an axial direction of the container through a fiber bundle guiding member.
The Ikuchi member has a configuration in which Ikuchi is laminated in two or more stages, wherein a plurality of fibers pass in a posture arranged in the width direction, and each stage has an independent Ikuchi. A fiber supply device characterized in that a controlled position and posture can be controlled.

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