JP2014231145A - Filament winding device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a filament winding device capable of smoothly switching over to the supply of fiber from a new bobbin.SOLUTION: An FW device 100 allows a bobbin shaft 214 to penetrate through core materials Bc of a first fiber bobbin B1 and a second fiber bobbin B2 which are adjacent to each other, so as to hold both of the fiber bobbins side by side, rotatable around the shaft. The winding start end Wce of the first fiber bobbin B1 and the winding finish end Wse of the second fiber bobbin B2 are then bonded and fixed in a range Wre for fiber bonding and fixation. When the fiber supply from the first fiber bobbin B1 proceeds to the timing for supply of the winding start end Wce on the side of the core material Bc of the first fiber bobbin B1, supply of fiber from the second fiber bobbin B2 adjacent to the first fiber bobbin B1 is initiated. Consequently the target fiber supply bobbin is switched over for continuation of fiber supply, such that the second fiber bobbin B2 not participating in the fiber supply so far becomes a new first fiber bobbin B1 as target fiber supply.

Description

  The present invention relates to a filament winding apparatus.

  2. Description of the Related Art Filament winding apparatuses (hereinafter, abbreviated as FW apparatuses as appropriate) are widely used as those for winding fibers around a fiber winding object such as a liner that is a core of a high-pressure gas tank. In the FW device, since a plurality of fiber winding objects are continuously subjected to fiber winding, it is indispensable to replace a fiber bobbin that has already been wound up with fibers. Therefore, a method for automating bobbin replacement has been proposed. (For example, Patent Document 1).

JP 2009-66917 A

  According to the bobbin replacement method described above, the replacement of the old bobbin and the new bobbin, which have almost used up the wound fiber, and the connection of the old and new bobbin fibers associated therewith are automated, and the fiber supply in the time required for fiber connection is buffered. This improves the exchange efficiency. In this case, the replacement of the new and old bobbins can be performed only when the end of the fiber wound up on the old bobbin has reached a predetermined joining position. Can be hindered. Also, since it is required to complete the replacement of the old and new bobbins and the fiber connection within the time in which the fiber buffer can be supplied by the buffer device, the bonding of the fibers of the old and new bobbins and the fiber fixing by the resin are insufficient. There is a concern that fibers will be supplied from the new bobbin. Alternatively, there is a concern that the buffer device may be increased in size in order to secure the fiber exchange time required for joining the fibers of the old and new bobbins and fixing the fibers with the resin. In addition, since the fiber exchange time is shortened, the structure of the fiber splicing mechanism may be complicated.

  In order to achieve at least a part of the problems described above, the present invention can be implemented as the following forms.

  (1) According to one aspect of the present invention, a filament winding apparatus is provided. This filament winding apparatus is a filament winding apparatus having a fiber winding part for winding a fiber around a fiber winding object, and the fiber supplied to the fiber winding part has been wound around a hollow core material. A plurality of fiber bobbins, and a bobbin unit that passes through the shaft through the core material for each of the plurality of fiber bobbins and holds the plurality of fiber bobbins side by side on the shaft so as to be rotatable around the shaft. In the fiber bobbin, the fiber winding start end on the core side of one of the fiber bobbins and the fiber winding end on the outermost periphery of the other fiber bobbin are bonded and fixed, and the fiber bobbins on the shaft are aligned. A fiber is supplied from the fiber bobbin on one end side to the fiber winding part.

  In holding the fiber bobbin in the bobbin unit in the filament winding apparatus of the above form, the shaft is penetrated through the core material for each of the plurality of fiber bobbins, and the plurality of fiber bobbins are held side by side on the shaft so as to be rotatable around the shaft, Fibers are supplied to the fiber winding section from fiber bobbins on one end side of the fiber bobbins arranged on the shaft (hereinafter referred to as fiber bobbins initially). During the fiber supply from the initial fiber bobbin, the initial fiber bobbin and the fiber bobbin adjacent to the bobbin (hereinafter referred to as a spare fiber bobbin) are the fiber windings on the core side of one fiber bobbin (initial fiber bobbin) Since the take-up start end and the fiber winding end on the outermost circumference of the other fiber bobbin (preliminary fiber bobbin) are bonded and fixed, the force that initially causes the fiber bobbin to rotate also reaches the spare fiber bobbin. Rotating in synchronization with the rotation, the fiber is initially supplied from the fiber bobbin to the fiber winding section. When the fiber supply from the initial fiber bobbin progresses and the supply timing of the fiber at the fiber winding start end on the core material side of the fiber bobbin comes, the fiber supply from the spare fiber bobbin next to the initial fiber bobbin is started. In other words, the fiber bobbin that has been the spare fiber bobbin becomes a new initial fiber bobbin, and the fiber supply target bobbin is smoothly replaced. If there are three or more fiber bobbins held side by side on the shaft, after the start of fiber supply from the spare fiber bobbin, the fiber bobbin that was previously the spare fiber bobbin becomes a new initial fiber bobbin, and the spare fiber bobbin The fiber supply target bobbin is smoothly replaced so that the adjacent fiber bobbin becomes a spare fiber bobbin, and the fiber supply from each fiber bobbin is continued. On the other hand, the adhesive fixing between the fiber winding start end on the core side of one of the adjacent fiber bobbins and the fiber winding end of the outermost fiber bobbin is the replacement of the fiber supply target bobbin. It can be executed separately from the timing of Therefore, according to the filament winding apparatus of the above embodiment, the adhesive fixing between the fiber winding start end and the fiber winding end in the adjacent fiber bobbin held side by side on the shaft can be executed without being restricted at the time of bobbin replacement. The fiber can be smoothly supplied from the spare fiber bobbin without any trouble.

  Further, according to the filament winding apparatus of the above aspect, the fiber winding start end of the adjacent fiber bobbin at an appropriate time, for example, the setup time before starting the fiber supply or the stop time of the fiber winding part of the fiber supply destination And the fiber winding end can be fixed in advance. For this reason, according to the filament winding apparatus of the above aspect, the fiber can be continuously supplied in a state where the bonding and fixing of the fibers at the fiber winding start end and the fiber winding end is sufficiently and reliably performed. It is possible to maintain or improve the fiber winding quality. In this case, if the rotation around the shaft axis of the initial fiber bobbin and the spare fiber bobbin accompanying the fiber supply from the initial fiber bobbin is a low speed, even in the fiber supply from the initial fiber bobbin, in the adjacent fiber bobbin Adhesive fixation between the fiber winding start end and the fiber winding end can be achieved in advance. In addition, according to the filament winding apparatus of the above aspect, it is not necessary to supply a fiber buffer while adhering and fixing the fiber winding start end and fiber winding end of adjacent fiber bobbins. The configuration can be simplified.

  (2) In the filament winding apparatus of the above-described form, in the adjacent fiber bobbins, the core material of one of the fiber bobbins and the core material of the other fiber bobbin can transmit rotation around the shaft. Can be matched. In this way, synchronous rotation around the shaft of the initial fiber bobbin and the spare fiber bobbin during the fiber supply from the initial fiber bobbin surely occurs. It is possible to prevent an event such as drooping of the accompanying fiber from occurring.

  (3) In any one of the above-described filament winding apparatuses, the bobbin unit includes the shaft penetrating the core material and holding the plurality of fiber bobbins so as to be able to be retracted forward along the shaft axis. When the fiber supply from the fiber bobbin (initial fiber bobbin) on the one end side to the fiber winding part is completed, the shaft of the fiber bobbin (initial fiber bobbin) that has completed the fiber supply is moved backward by the shaft. The core material can be removed from the shaft. In this way, the shaft does not leave the original fiber bobbin core material after fiber supply is completed, so that subsequent advancement of the shaft allows the spare fiber bobbin next to the initial fiber bobbin to be placed at the initial fiber bobbin position. It becomes. Thereby, the locus of fiber supply can be restored.

  (4) In the filament winding apparatus according to any one of the above forms, as the fiber winding unit, a hoop winding unit that hoops a fiber around the fiber winding target, and a helical winding of the fiber around the fiber winding target And the fiber bobbin fiber held by the shaft by the bobbin unit can be supplied to the helical winding unit. Since the hoop winding unit and the helical winding unit are alternately driven for winding the fiber, the helical winding unit pauses or stops while the fiber is hoop-wrapped around the fiber winding object by the hoop winding unit. ing. Therefore, according to the filament winding apparatus of the above aspect, the fiber winding on the adjacent fiber bobbin is performed during the pause or stop period of the helical winding portion while the fiber is wound around the fiber winding object by the hoop winding portion. Since the adhesive fixing between the start end and the fiber winding end can be achieved in advance, helical winding by the helical winding portion following the hoop winding portion can be started and continued without any trouble.

  In addition, this invention can be implement | achieved with a various form, for example, can also be comprised as a manufacturing apparatus or manufacturing method of the high pressure gas tank which wound the fiber around the liner.

It is explanatory drawing which shows typically schematic structure of the FW apparatus 100 as embodiment of this invention. It is explanatory drawing which shows collectively the mode of the connection of the resin impregnation carbon fiber W between bobbins, showing the schematic structure of the fiber supply unit 200 typically. Explanatory drawing which shows a mode that the fiber supply from 1st fiber bobbin B1 advances and it changes to the fiber supply from 2nd fiber bobbin B2 with the state of the bobbin replenishment during the continuation of the fiber supply from 2nd fiber bobbin B2. It is. It is explanatory drawing which shows typically other embodiment of the bobbin holding | maintenance by the fiber supply unit 200. FIG.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. The filament winding apparatus (FW apparatus) of the present embodiment is used when a high-pressure gas tank as a final product is manufactured, and the resin-impregnated carbon fiber W is wound around the liner 10. FIG. 1 is an explanatory diagram schematically showing a schematic configuration of an FW device 100 as an embodiment of the present invention. In this embodiment, the high-pressure gas tank is a high-pressure hydrogen tank that stores high-pressure hydrogen.

  The FW device 100 uses a liner 10 of a resin container having a gas barrier property against hydrogen gas as a fiber winding object. The liner 10 includes a substantially cylindrical cylinder portion 10a having a uniform radius, and convex dome portions 10b provided at both ends of the cylinder portion. The dome portion 10b is configured by an isotonic curved surface, and has a base 14 for connecting to an external pipe or the like at the apex thereof. In the present embodiment, a resin container made of a nylon resin is used as the resin container. A resin container made of another resin may be used as long as it has a gas barrier property against hydrogen gas.

  The FW device 100 includes a liner pivot shaft 112, a helical winding unit 100H, a hoop winding unit 100F, a fiber supply unit 200, and a fiber guide unit 300. The liner shaft support shaft 112 is inserted into the caps 14 at both ends of the liner, and is held by a shaft holding mechanism (not shown) with the shaft protruding from both ends of the liner, and supports the liner 10 horizontally. After the liner 10 is pivotally supported in this manner, the FW device 100 forms the fiber reinforced resin layer by winding the resin-impregnated carbon fiber W around the outer periphery of the liner 10 by the helical winding unit 100H and the hoop winding unit 100F (fibers). Strengthening resin layer forming step). By this fiber reinforced resin layer forming step, an intermediate product tank having a fiber reinforced resin layer before resin curing on the outer periphery of the liner 10 is obtained, and this intermediate product tank is heat-treated using an induction heating device or the like (not shown). Thus, a high-pressure gas tank as a final product is obtained.

  The helical winding unit 100H is an annular body that surrounds the liner 10, and is arranged along the axis of the liner 10 so as to wind the resin-impregnated carbon fiber W over the curved outer surface area of the dome portion 10b at both ends of the liner. It reciprocates relative to the liner 10 over a predetermined range including the outside of the dome portion 10b. As will be described later, the fiber supply unit 200 includes a first fiber bobbin B1 and a second fiber bobbin B2, and supplies the resin-impregnated carbon fiber W from these bobbins through the fiber guide unit 300 to the helical winding unit 100H. The fiber guide unit 300 sends out the resin-impregnated carbon fiber W from the fiber supply unit 200 while guiding it to the helical winding unit 100H. In this case, if the liner 10 reciprocates along the axis, the fiber guide unit 300 sends the resin-impregnated carbon fiber W to the helical winding unit 100H without changing its position, and the helical winding unit 100H reciprocates. If so, the resin-impregnated carbon fiber W is sent out while moving in accordance with the relative reciprocation of the helical winding unit 100H. Thus, the helical winding unit 100H that receives the supply of the resin-impregnated carbon fiber W has a low winding angle where the winding trajectory of the resin-impregnated carbon fiber W intersects the tank central axis at a low angle fiber angle (for example, about 11 to 25 °). The resin-impregnated carbon fiber W is wound by helical winding at an angle. The resin-impregnated carbon fiber W is a multi-feed yarn including a plurality of sliver-like carbon fibers and a thermosetting resin such as an epoxy resin between the sliver fiber surface and the fibers.

  The hoop winding unit 100F is an annular body that surrounds the liner 10, and a predetermined length substantially corresponding to the length of the cylinder portion 10a along the axis of the liner 10 so as to hoop the resin-impregnated carbon fiber W around the outer periphery of the cylinder portion 10a. Reciprocate relative to the liner 10 over a range. In the process of reciprocating relative to the liner 10, the hoop winding unit 100F feeds the resin-impregnated carbon fiber W from a plurality of fiber bobbins (not shown) built in the unit, and the winding trajectory of the resin-impregnated carbon fiber W becomes the center axis of the tank. On the other hand, the resin-impregnated carbon fiber W is wound by a hoop winding intersecting at a substantially vertical winding angle (fiber angle: for example, about 89 °).

  Next, the configuration of the fiber supply unit 200 will be described. FIG. 2 is an explanatory view showing the state of the connection of the resin-impregnated carbon fibers W between bobbins while schematically showing the schematic configuration of the fiber supply unit 200. As illustrated, the fiber supply unit 200 includes a stand plate 210, a plate convex portion 211, a pair of stand frames 212, a bobbin shaft 214, a supply side bobbin plate 216, and an end side bobbin plate 218. The first fiber bobbin B1 and the second fiber bobbin B2 are held side by side on the bobbin shaft 214. The stand plate 210 supports the bobbin shaft 214 with the plate convex portion 211 and the supply-side bobbin plate 216 and cooperates with the end-side bobbin plate 218 to hold the bobbin shaft 214 substantially horizontally. The pair of stand frames 212 holds the bobbin shaft 214 indirectly by holding the supply-side bobbin plate 216 and the end-side bobbin plate 218. The end-side bobbin plate 218 can be removed from the stand frame 212. When the bobbin is refilled, which will be described later, the end-side bobbin plate 218 is detached from the stand frame 212 and then remounted on the stand frame 212.

  Both the fiber bobbins of the first fiber bobbin B1 and the second fiber bobbin B2 have the resin-impregnated carbon fiber W supplied to the helical winding unit 100H already wound around the hollow core material Bc, to the helical winding unit 100H. Is held by the fiber supply unit 200 in a setup state prior to the fiber supply. At this time, the fiber supply unit 200 causes the bobbin shaft 214 to pass through the core material Bc of both the fiber bobbins, and rotates both the fiber bobbins of the first fiber bobbin B1 and the second fiber bobbin B2 around the bobbin shaft 214. It is held side by side on the bobbin shaft 214 as possible. Both the fiber bobbins of the first fiber bobbin B1 and the second fiber bobbin B2 thus held side by side are adjacent to each other, and the winding start end Wce of the resin-impregnated carbon fiber W on the core material Bc side of the first fiber bobbin B1, The winding end Wse of the outermost resin impregnated carbon fiber W in the second fiber bobbin B2 is bonded and fixed. This adhesive fixing is performed as follows at the fiber fixing portion Wt between the adjacent first fiber bobbin B1 and second fiber bobbin B2.

  The lower part of FIG. 2 shows a state of fiber adhesion fixing at the fiber fixing part Wt. First, the resin-impregnated carbon fiber W occupying the winding start end Wce of the first fiber bobbin B1 and the second fiber bobbin B2 are shown. The resin-impregnated carbon fibers W occupying the winding end Wse are overlapped while unfolding the fiber bundle. Next, with a non-illustrated needle or the like, a resin-impregnated carbon fiber W that occupies the winding start end Wce of the first fiber bobbin B1, and a resin-impregnated carbon fiber W that occupies the winding end Wse of the second fiber bobbin B2; In this state, the thermosetting resin Re is dropped or applied to the fiber adhesion fixing range Wre, and the resin is cured by heating with hot air. Thereby, the resin-impregnated carbon fiber W of the first fiber bobbin B1 and the resin-impregnated carbon fiber W of the second fiber bobbin B2 are bonded and fixed to each other in the fiber bonding fixing range Wre. By such adhesive fixing, the force accompanying the drawing of the resin-impregnated carbon fiber W can be resisted in the fiber adhesive fixing range Wre. In this case, the thermosetting resin Re can have a property equivalent to that of the thermosetting resin in the resin-impregnated carbon fiber W, or may be a resin having a high curability by adding a large amount of a curing agent. In this case, only the thermosetting resin impregnated in the resin-impregnated carbon fiber W can be used as long as the adhesion and fixation of the fibers in the fiber-adhesion fixing range Wre can withstand the force accompanying the drawing of the resin-impregnated carbon fiber W. It may be adhered with.

  When the fiber fixing at the fiber fixing part Wt is thus completed, the fiber supply unit 200 starts from the first fiber bobbin B1 on one end side of the array of fiber bobbins on the bobbin shaft 214 via the fiber guide unit 300 and the helical winding unit 100H. The resin-impregnated carbon fiber W is supplied to. This fiber supply is executed in accordance with the start timing of helical winding by the helical winding unit 100H. That is, since the helical winding unit 100H is stopped during the hoop winding execution period by the hoop winding unit 100F, the fiber supply from the first fiber bobbin B1 is not performed during this period. When the fiber supply from the first fiber bobbin B1 is started, the first fiber bobbin B1 receives the fiber pulling output of the helical winding unit 100H and rotates around the bobbin shaft 214. When the first fiber bobbin B1 rotates in this way, the winding start end Wce of the first fiber bobbin B1 also rotates around the bobbin shaft 214, so that the fiber pulling output of the helical winding unit 100H is the winding of the first fiber bobbin B1. It extends to the second fiber bobbin B2 through the resin impregnated carbon fiber W at the winding end Wse that is bonded and fixed to the start end Wce. Therefore, the second fiber bobbin B2 rotates around the bobbin shaft 214 in synchronization with the first fiber bobbin B1. Under such a rotation state, the fiber supply from the first fiber bobbin B1 to the helical winding unit 100H is continued.

  Next, fiber supply and bobbin replenishment after the start of fiber supply from the first fiber bobbin B1 to the helical winding unit 100H will be described. FIG. 3 shows a state in which the fiber supply from the first fiber bobbin B1 advances and the state of the fiber supply from the second fiber bobbin B2 shifts to the state of the bobbin replenishment during the continuation of the fiber supply from the second fiber bobbin B2. It is explanatory drawing shown.

  As shown in FIG. 3, the fiber supply from the first fiber bobbin B1 proceeds, and all the resin-impregnated carbon fibers W wound up on the first fiber bobbin B1 pass through the fiber guide unit 300 and the helical winding unit 100H (FIG. 1). Is supplied to the helical winding unit 100H through the fiber guide unit 300. Then, the pulling force is second through the resin-impregnated carbon fiber W at the winding end Wse and the resin-impregnated carbon fiber W at the winding start end Wce of the first fiber bobbin B1 at the fiber fixing portion Wt. It hangs directly on the fiber bobbin B2. Thereby, at the timing when the fiber fixing portion Wt is pulled out to the helical winding unit 100H, the fiber supply from the second fiber bobbin B2 adjacent to the first fiber bobbin B1 that originally supplied the resin-impregnated carbon fiber W is smooth. To begin. That is, the second fiber bobbin B2 that has been rotating in synchronization with the first fiber bobbin B1 until then becomes the fiber bobbin (first fiber bobbin B1) that is the target of fiber supply to the helical winding unit 100H. Then, the core material Bc of the first fiber bobbin B1 to which all the wound fibers are supplied remains on the bobbin shaft 214 (FIG. 3B).

  As shown in FIG. 3 (C), the fiber supply unit 200 starts the fiber supply from the second fiber bobbin B2 at the beginning of the fiber supply or while the fiber supply is continued. Retreat along the shaft axis to the side. By this shaft retreat, the core material Bc of the first fiber bobbin B1 remaining on the bobbin shaft 214 is dropped from the bobbin shaft 214 and removed. When the shaft is retracted, the second fiber bobbin B2 is supported by the end-side bobbin plate 218, and thus remains in the initial position.

  Following the removal of the core material Bc, the fiber supply unit 200 advances and returns the bobbin shaft 214 until it abuts against the plate convex portion 211 and is held by the supply-side bobbin plate 216 (FIG. 3D). By the return, the second fiber bobbin B2 moves forward together with the shaft, takes the position of the original first fiber bobbin B1, and thereafter becomes the first fiber bobbin B1 for continuing the fiber supply. There is no bobbin next to the first fiber bobbin B1, and the bobbin can be refilled.

  The fiber supply unit 200 performs the bobbin replenishment as follows after the bobbin replenishment is possible and while the fiber supply from the first fiber bobbin B1 is continued. That is, as shown in FIG. 3E, the end-side bobbin plate 218 is removed from the stand frame 212, and the second fiber bobbin B2, which is a new bobbin, is attached to and held on the bobbin shaft 214, and the end-side bobbin plate 218 is retained. Is engaged with the stand frame 212. After that, the winding start end Wce of the first fiber bobbin B1 being supplied and the winding end Wse of the supplemented second fiber bobbin B2 are bonded and fixed in the fiber bonding fixing range Wre. After this fiber bonding, the bobbin replenishment is completed. Thereafter, the fiber supply from the first fiber bobbin B1 is continued, the fiber supply from the second fiber bobbin B2 is started (FIG. 3 (A)), and the core material Bc is removed ( 3 (C)), the position movement of the second fiber bobbin B2 (FIG. 3 (D)), and the bobbin replenishment (FIG. 3 (E)) are repeated. When the end-side bobbin plate 218 shown in FIG. 3E is removed, the bobbin shaft 214 and the first fiber bobbin B1 are held in their original postures by a support mechanism (not shown).

  As described above, in the FW device 100 using the fiber supply unit 200 of the present embodiment, when holding the two first fiber bobbins B1 and the second fiber bobbins B2 in the fiber supply unit 200, both the fiber bobbins The bobbin shaft 214 is passed through the core material Bc, and both fiber bobbins are arranged and held on the bobbin shaft 214 so as to be rotatable around the shaft, and then the winding start end Wce of the first fiber bobbin B1 and the second fiber bobbin B2 And the winding end Wse are bonded and fixed in the fiber bonding fixing range Wre. Then, the FW device 100 supplies the resin-impregnated carbon fiber W to the helical winding unit 100H through the fiber guide unit 300 from the first fiber bobbin B1 on one end side of the fiber bobbins arranged on the bobbin shaft 214. During the fiber supply from the first fiber bobbin B1, the first fiber bobbin B1 and the adjacent second fiber bobbin B2 both receive the pulling force of the fiber and synchronize around the shaft of the bobbin shaft 214. The resin fiber-impregnated carbon fiber W is supplied from the first fiber bobbin B1 to the helical winding unit 100H.

  When the fiber supply from the first fiber bobbin B1 proceeds and the supply timing of the winding start end Wce on the core material Bc side of the first fiber bobbin B1 is reached, the second fiber bobbin B1 adjacent to the first fiber bobbin B1 Fiber supply is started. As a result, the fiber supply target bobbin is smoothly replaced so that the second fiber bobbin B2 that has not been involved in the fiber supply becomes the first fiber bobbin B1 that is the fiber supply target, and the fiber supply continues. Is done. On the other hand, the adhesive fixing in the fiber adhesive fixing range Wre between the winding start end Wce of the first fiber bobbin B1 and the winding end Wse of the second fiber bobbin B2 (see FIG. 2) is the timing of replacement of the fiber supply target bobbin. It can be executed separately. Therefore, according to the FW device 100 using the fiber supply unit 200 of the present embodiment, the winding start end Wce of the first fiber bobbin B1 and the second fiber bobbin B2 in the adjacent fiber bobbins held side by side on the bobbin shaft 214. It is possible not to limit the timing for adhering and fixing to the winding end Wse when replacing the bobbin.

  According to the FW device 100 using the fiber supply unit 200 of the present embodiment, an appropriate time, for example, a setup time before starting the fiber supply to the helical winding unit 100H, or the hoop winding unit 100F to the liner 10 The winding start end Wce of the first fiber bobbin B1 and the winding end Wse of the second fiber bobbin B2 in the adjacent fiber bobbins when the helical winding by the helical winding unit 100H is stopped because the hoop winding is performed. Can be fixed in advance. For this reason, according to the FW device 100 using the fiber supply unit 200 of the present embodiment, the continuous supply of the resin-impregnated carbon fibers W in a state in which the fibers are sufficiently and reliably bonded and fixed in the fiber adhesion fixing range Wre. Therefore, it is possible to maintain or improve the winding quality of the helical winding. Since the FW device 100 using the fiber supply unit 200 of the present embodiment performs helical winding on the liner 10 by the helical winding unit 100H at a low speed, the shaft of the first fiber bobbin B1 accompanying the delivery of the resin-impregnated carbon fiber W The rotational speed of the rotation is a low speed of about 5 to 10 m / min. Therefore, when the bobbin replenishment shown in FIG. 3 (E) is performed, even if the first fiber bobbin B1 is rotated as the fiber is fed, the rotation speed is low as described above. It is possible to adhere and fix the winding start end Wce of the first fiber bobbin B1 to the winding end Wse of the supplemented second fiber bobbin B2. Therefore, the winding start end Wce of the first fiber bobbin B1 and the winding end Wse of the second fiber bobbin B2 can be reliably bonded and fixed with a high degree of freedom.

  According to the FW device 100 using the fiber supply unit 200 of the present embodiment, the fiber is being bonded while fixing the winding start end Wce of the first fiber bobbin B1 and the winding end Wse of the second fiber bobbin B2. No buffer supply is required. Therefore, it is possible to reduce the size and the configuration of the FW device.

  The fiber supply unit 200 according to the present embodiment includes a bobbin shaft 214 that passes through the core material Bc and holds the first fiber bobbin B1 and the second fiber bobbin B2 so as to be able to retreat forward along the shaft axis. In addition, when the fiber supply unit 200 of the present embodiment completes the fiber supply from the first fiber bobbin B1 to the helical winding unit 100H, the bobbin shaft 214 is moved backward to complete the fiber supply of the first fiber bobbin B1. The core material Bc is removed from the bobbin shaft 214, and the core material Bc of the first fiber bobbin B1 for which fiber supply has been completed is not left on the bobbin shaft 214. Therefore, according to the fiber supply unit 200 of the present embodiment, the supply trajectory of the resin-impregnated carbon fiber W is such that the second fiber bobbin B2 is placed at the position of the first fiber bobbin B1 by the subsequent advance of the bobbin shaft 214. Therefore, the influence on the winding quality of the helical winding due to the difference in the supply trajectory can be reduced. In addition, since the new second fiber bobbin B2 can be replenished so as to be held on the bobbin shaft 214, it is also useful for continuously supplying the resin-impregnated carbon fiber W.

  The FW device 100 using the fiber supply unit 200 of the present embodiment includes a hoop winding unit 100F that hoops the resin-impregnated carbon fiber W around the liner 10 and a helical winding unit 100H that helically winds the resin-impregnated carbon fiber W around the liner 10. And the resin impregnated carbon fibers W of the first fiber bobbin B1 and the second fiber bobbin B2 held by the fiber supply unit 200 by the bobbin shaft 214 are supplied to the helical winding unit 100H. Since the hoop winding unit 100F and the helical winding unit 100H are alternately driven for fiber winding, the helical winding unit 100H is used while the resin-impregnated carbon fiber W is hoop-wrapped around the liner 10 by the hoop winding unit 100F. Pause or stop. Therefore, according to the FW device 100 using the fiber supply unit 200 of the present embodiment, in the period of pause or stop of the helical winding unit 100H while executing the hoop winding to the liner 10 by the hoop winding unit 100F, Adhesive fixation between the winding start end Wce and the winding end Wse in the adjacent first fiber bobbin B1 and the first fiber bobbin B1 can be reliably performed in advance, so that helical winding by the helical winding unit 100H following the hoop winding unit 100F is performed. You can start and continue quickly without any problems.

  FIG. 4 is an explanatory view schematically showing another embodiment of bobbin holding by the fiber supply unit 200. As illustrated, in this embodiment, the core material Bc of the first fiber bobbin B1 and the second fiber bobbin B2 has engaging portions Cr at both ends thereof. Therefore, in the adjacent first fiber bobbin B1 and second fiber bobbin B2, the core material Bc of one fiber bobbin and the core material Bc of the other fiber bobbin are connected to the bobbin shaft 214 by the engagement of the engaging portion Cr. The rotation transmission around the shaft can be engaged. For this reason, according to the fiber supply unit 200 of this embodiment, the synchronous rotation around the shaft of the first fiber bobbin B1 and the second fiber bobbin B2 is reliably caused during the fiber supply from the first fiber bobbin B1. In addition, it is possible to prevent an event such as inadvertent release of the fiber from the second fiber bobbin B2 and the drooping of the fiber accompanying this.

  The present invention is not limited to the above-described embodiment, and can be realized with various configurations without departing from the spirit of the present invention. For example, the technical features of the embodiments corresponding to the technical features in each embodiment described in the summary section of the invention are intended to solve part or all of the above-described problems, or part of the above-described effects. Or, in order to achieve the whole, it is possible to replace or combine as appropriate. Further, if the technical feature is not described as essential in the present specification, it can be deleted as appropriate.

  In the above embodiment, the liner 10 that is the core material of the high-pressure gas tank is the fiber winding object, but the fiber may be wound around the fiber winding object other than the liner. In the above embodiment, the resin-impregnated carbon fiber W has been wound around both the first fiber bobbin B1 and the second fiber bobbin B2, but the uncured carbon fiber of the thermosetting resin is wound up. You may do it. In this case, the entanglement between the resin-unimpregnated carbon fiber occupying the winding start end Wce of the first fiber bobbin B1 and the resin-unimpregnated carbon fiber occupying the winding end Wse of the second fiber bobbin B2 described above. Together with this, thermosetting with the thermosetting resin Re is intended. Then, when the fiber is fed to the fiber guide unit 300, the carbon fiber W may be made into a resin-impregnated carbon fiber W by sinking the carbon fiber into the resin tank.

  In the above embodiment, the two fiber bobbins of the first fiber bobbin B1 and the second fiber bobbin B2 are held by the bobbin shaft 214 in the fiber supply unit 200, but three or more fiber bobbins are held by the bobbin shaft. It may be held at 214.

  In the above embodiment, in the FW device 100 having the hoop winding unit 100F and the helical winding unit 100H, the resin-impregnated carbon fiber W is supplied from the fiber supply unit 200 to the helical winding unit 100H, but only the helical winding unit 100H is provided. The fiber supply unit 200 can be applied to the FW device 100. In this case, the adhesive fixing between the winding start end Wce of the first fiber bobbin B1 and the winding end Wse of the second fiber bobbin B2 is the first fiber at the time of setup prior to fiber supply or at a low speed. This may be performed while the bobbin B1 is rotating.

DESCRIPTION OF SYMBOLS 10 ... Liner 10a ... Cylinder part 10b ... Dome part 14 ... Base 100 ... FW apparatus (filament winding apparatus)
DESCRIPTION OF SYMBOLS 100F ... Hoop winding unit 100H ... Helical winding unit 112 ... Liner axis support shaft 200 ... Fiber supply unit 210 ... Stand plate 211 ... Plate convex part 212 ... Stand frame 214 ... Bobbin shaft 216 ... Supply side bobbin plate 218 ... End side bobbin plate DESCRIPTION OF SYMBOLS 300 ... Fiber guide unit W ... Resin impregnated carbon fiber Wt ... Fiber fixing | fixed part Wce ... Winding start end Wre ... Fiber adhesion fixing range Wse ... Winding end B1 ... 1st fiber bobbin B2 ... 2nd fiber bobbin Bc ... Core material Re ... thermosetting resin Cr ... engagement part

Claims (4)

A filament winding apparatus having a fiber winding part for winding a fiber around a fiber winding object,
A plurality of fiber bobbins in which the fiber supplied to the fiber winding part has been wound around a hollow core;
A bobbin unit that passes through a shaft through the core material for each of the plurality of fiber bobbins and holds the plurality of fiber bobbins side by side on the shaft so as to be rotatable around the shaft;
In the adjacent fiber bobbins, the fiber winding start end on the core side of one of the fiber bobbins and the fiber winding end on the outermost periphery of the other fiber bobbin are bonded and fixed, and the fiber bobbin in the shaft A filament winding apparatus for supplying fibers to the fiber winding section from the fiber bobbins on one end side of the array.   2. The filament winding apparatus according to claim 1, wherein in the adjacent fiber bobbins, the core material of one of the fiber bobbins and the core material of the other fiber bobbin are engaged so as to transmit rotation around the shaft. The filament winding apparatus according to claim 1 or 2, wherein
The bobbin unit includes the shaft penetrating the core material and holding the plurality of fiber bobbins so as to be capable of moving back and forth along the shaft axis, from the fiber bobbin on the one end side to the fiber winding portion. When the fiber supply is completed, the shaft is retracted to remove the core material of the fiber bobbin from which the fiber supply has been completed from the shaft. A filament winding apparatus according to any one of claims 1 to 3,
As the fiber winding part, a hoop winding part for hoop-winding the fiber around the fiber winding object, and a helical winding part for helically winding the fiber around the fiber winding object,
A filament winding apparatus for supplying fibers of the fiber bobbin held by the shaft by the bobbin unit to the helical winding section.

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