JP2014227288A - Fiber feeding device, and filament winding device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a technology to reduce a load generated on a fiber base material when delivering the fiber base material.SOLUTION: An FW device 1 includes a fiber feeding device 10 for feeding a reinforced fiber 2. The fiber feeding device 10 includes a plurality of fiber unwinding parts 11. The fiber unwinding parts 11 include a bobbin part 50, an unwinding roller 60, and a yarn feeding roller 70. The bobbin part 50 includes a bobbin body part 51 on which the reinforced fiber 2 is winded. The unwinding roller 60 moves in a rotation axis BX direction of the bobbin body part 51 following the unwinding position of the reinforced fiber 2 in a direction of a rotation axis BX of the bobbin body part 51, in a position adjacent to the bobbin body part 51. The yarn feeding roller 70 feeds the reinforced fiber 2 fed from the unwinding roller 60 in a predetermined direction.

Description

  The present invention relates to a technique for unwinding and feeding a fiber base material wound around a bobbin.

  Conventionally, a filament winding method (hereinafter also simply referred to as “FW method”) has been adopted as a method for manufacturing a high-pressure storage tank. In the FW method, a reinforcing fiber impregnated with a resin such as a thermosetting resin is wound around a tank container which is a mandrel, and a fiber reinforced resin layer is formed on the outer surface of the tank container. Usually, the fiber base material which comprises a reinforced fiber is drawn out and used from the state wound up by the bobbin. In the present specification, feeding the fiber base material in a wound state is also referred to as “unwinding”.

  Patent Document 1 discloses a filament winding device (hereinafter also simply referred to as “FW device”) having a configuration for guiding a fiber bundle unwound from a bobbin to a fixed guide via an auxiliary roller. Patent Document 2 discloses an FW device in which a fiber bundle unwound from a bobbin is sent to a traverse device while adjusting the tension and wound around a liner. Patent Document 3 discloses a tow prepreg manufacturing apparatus in which carbon fibers are drawn from a krill stand, impregnated with a resin in a kiss roll impregnation unit, which is a resin impregnation apparatus, and wound around a bobbin.

International Publication WO2013 / 039155 Pamphlet JP 2010-006025 A JP 2012-184279 A

  In the FW method, in order to reduce the load such as friction generated in the fiber base material and to suppress the deterioration of the fiber base material such as damage and fluffing, the fiber base material is smoothly unwound from the bobbin. desirable. The FW device described in Patent Document 1 can suppress the occurrence of twisting due to traversing of the fiber bundle by an auxiliary roller arranged in parallel and parallel to the central axis of the bobbin. However, in the technique of Patent Document 1, a load caused by friction generated between the fiber bundle and the auxiliary roller or friction between the fiber base materials when the fiber base material is unwound from the bobbin is considered. Absent.

  In Patent Document 2, the adjustment of the tension of the traveling fiber bundle is an issue, and it is not sufficiently considered to smoothly unwind the fiber bundle from the bobbin. Further, it is not considered to reduce the load such as friction generated in the traveling fiber bundle and protect the fiber bundle. In Patent Document 3, the tread angle and tension of the prepreg are defined in order to suppress fuzz and excessive abrasion deterioration of the prepreg. However, in the technique of Patent Document 3, since the prepreg standard, the guide axis angle, and the like are limited, it may be difficult to apply to a general apparatus or the like, and lacks versatility.

  As described above, in the FW method, there is still room for improvement in the method for unwinding and feeding the fiber base material from the bobbin. Such a problem is not limited to the FW method, and is a problem widely common in the technical field of unwinding and using a fiber base material wound around a bobbin. In addition, in the technical field where a fiber base material is unwound from a bobbin and used conventionally, downsizing and simplification of an apparatus and mechanism for feeding out the fiber base material, improving usability, resource saving, and feeding out the fiber base material. It has been desired to simplify, simplify, and reduce the cost of the process.

  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.

[1] According to one aspect of the present invention, there is provided a fiber supply device for feeding a fiber base material. The fiber supply device includes a bobbin, a roller, and a delivery unit. The fiber base is wound around the bobbin. The roller feeds the fiber base material unwound from the bobbin. Further, the roller moves in the direction of the rotation axis of the bobbin at a position adjacent to the bobbin according to a position when the fiber base is fed out from the bobbin. The said delivery part sends out the said fiber base material sent out from the said roller in a predetermined direction. According to the fiber supply device of this embodiment, the roller that assists the unwinding of the reinforcing fiber from the bobbin and the feeding thereof moves according to the unwinding position of the fiber base to reliably guide the fiber base. A load such as friction generated on the fiber base material is reduced. Therefore, damage and deterioration of the fiber base material are suppressed.

[2] In the fiber supply device of the above aspect, the roller may have a vibration generating unit that vibrates the fiber base material. According to this form of the fiber supply device, the force acting in the direction of promoting the separation between the fiber base materials when the fiber base material is unwound from the bobbin can be generated by the vibration generated by the vibration generating unit. . Therefore, unwinding from the bobbin of the fiber base material is facilitated.

[3] In the fiber supply device according to the above aspect, the roller is a main body that contacts the fiber substrate and rotates in response to the feeding of the fiber substrate, and rotates at a portion that contacts the fiber substrate. The cutting surface orthogonal to the axis may have a non-circular shape, so that a main body portion that functions as the vibration generating portion may be provided by generating vibration in the fiber base material with its rotation. According to this form of the fiber supply device, vibration can be imparted to the fiber substrate fed from the bobbin with a simple configuration.

[4] In the fiber supply device according to the above aspect, the main body portion protrudes in a direction intersecting the rotation axis of the main body portion, and a protrusion portion that pushes out the fiber base material in a direction intersecting the rotation axis is formed with the fiber base material. You may have in the site | part which contacts. According to this form of the fiber supply device, vibration can be imparted to the fiber substrate fed from the bobbin with a simple configuration.

[5] In the fiber supply device according to the above aspect, the main body portion further protrudes in a direction intersecting the rotation axis of the main body portion at a position adjacent to the protrusion portion in a portion in contact with the fiber base material. You may have the elastic protrusion part which changes elastically. According to the fiber supply device of this aspect, after the vibration is generated in the fiber base material by the protrusion, the vibration can be absorbed by the elastic protrusion. Therefore, excessive vibration of the fiber base material can be suppressed, and the fiber base material can be protected.

[6] In the fiber supply device of the above aspect, a curved plate that presses the surface of the fiber base material may be provided at the tip of at least one of the protrusion and the elastic protrusion. According to the fiber supply device of this aspect, damage and deterioration of the fiber base material due to contact with the protrusions or the elastic protrusions can be suppressed by the curved plate. Further, the surface of the fiber base material is leveled by pressing with the curved plate, and the fluffing on the surface of the fiber base material is suppressed.

[7] According to another aspect of the present invention, a filament winding apparatus is provided. A filament winding apparatus according to this aspect includes the fiber supply apparatus according to any one of the above aspects; and a winding unit that winds the fiber base material fed from the fiber supply apparatus around the mandrel. According to this form of the filament winding apparatus, the fiber base material is prevented from being damaged or deteriorated before being wound around the mandrel.

  A plurality of constituent elements of each aspect of the present invention described above are not indispensable, and some or all of the effects described in the present specification are to be solved to solve part or all of the above-described problems. In order to achieve the above, it is possible to appropriately change, delete, replace with another new component, and partially delete the limited contents of some of the plurality of components. In order to solve part or all of the above-described problems or to achieve part or all of the effects described in this specification, technical features included in one embodiment of the present invention described above. A part or all of the technical features included in the other aspects of the present invention described above may be combined to form an independent form of the present invention.

  The present invention can also be realized in various forms other than the fiber supply device. For example, a roller that assists in unwinding the fiber substrate from the bobbin, a unwinding apparatus including the roller, a method for unraveling the fiber substrate from the bobbin, a method for supplying the fiber substrate, and a fiber substrate to the mandrel by the FW method This can be realized in the form of a winding device, a storage tank manufacturing apparatus or a manufacturing method using the FW method.

Schematic which shows the structure of FW apparatus of 1st Embodiment. The schematic perspective view which shows the structure of a fiber unwinding part. The schematic front view which shows the structure of a fiber unwinding part. The schematic sectional drawing which shows the structure of a fiber unwinding part. The schematic front view which shows the structure of the fiber unwinding part as a comparative example. The schematic perspective view which shows the structure of the unwinding roller of 2nd Embodiment. The schematic sectional drawing which shows the structure of the unwinding roller of 2nd Embodiment. The schematic diagram for demonstrating the mechanism of sending out the reinforced fiber by the unwinding roller of 2nd Embodiment. The schematic sectional drawing which shows the some structural example of the unwinding roller of 3rd Embodiment. The schematic perspective view which shows the structure of the unwinding roller of 4th Embodiment. The schematic sectional drawing which shows the structure of the unwinding roller of 4th Embodiment. The schematic diagram for demonstrating the mechanism of sending out the reinforced fiber by the unwinding roller of 4th Embodiment. The schematic sectional drawing which shows the structure of the unwinding roller of 5th Embodiment.

A. First embodiment:
FIG. 1 is a schematic diagram showing a configuration of an FW device 1 as a first embodiment of the present invention. The FW device 1 performs the winding of the reinforcing fiber 2 using the main body of a storage tank, also called a liner, as a mandrel. The FW device 1 includes a fiber supply unit 10, a fiber focusing and feeding unit 20, and a liner holding unit 30. The fiber supply unit 10 is also called a krill stand, and includes a plurality of fiber unwinding units 11.

  Each fiber unwinding part 11 unwinds and sends out the reinforcing fiber 2 wound around the bobbin. The configuration of the fiber unwinding portion 11 will be described later. The reinforcing fiber 2 is a fiber base material called a prepreg in which a bundle of carbon fibers is impregnated with a reinforcing resin such as a thermosetting resin in advance. More specifically, the reinforcing fiber 2 is a belt-like body having a width of several mm and a thickness of 1 mm or less in which tens of thousands of carbon fibers having a fiber diameter of 10 μm or less are bundled.

  The fiber collecting and feeding unit 20 and the liner holding unit 30 constitute a fiber winding unit that winds the reinforcing fibers 2 supplied from the fiber supply unit 10 around the liner 5. The fiber focusing and feeding unit 20 includes an inlet roller 21, a tension adjusting roller 22, a plurality of transport rollers 23, and a fiber feeding unit 24. The inlet roller 21 is a rotating roller provided in the uppermost stream, receives the reinforcing fibers 2 sent from the fiber unwinding units 11 of the fiber supply unit 10, and sends the reinforcing fibers 2 in parallel. .

  The tension adjusting roller 22 is a transport roller that can be displaced in the height direction, and is disposed at the rear stage of the entrance roller 21. The fiber bundling and feeding unit 20 adjusts the tension generated in each reinforcing fiber 2 being conveyed by displacing the height of the tension adjusting roller 22. Each of the plurality of transport rollers 23 is sequentially arranged downstream of the tension adjusting roller 22 and transports each reinforcing fiber 2 to the fiber feeding unit 24.

  The fiber feeding unit 24 tightly gathers the plurality of reinforcing fibers 2 received from the transport roller 23 and feeds them toward the liner 5. The fiber feeding unit 24 includes a head unit 25 and a support shaft 26. The head unit 25 has a nozzle that receives and feeds the reinforcing fiber 2. The support shaft 26 is fixedly held so as to be parallel and parallel to the rotation shaft 34 of the liner holding portion 30. The head unit 25 is attached to the support shaft 26 and is displaced in the axial direction of the support shaft 26. The fiber feeding unit 24 feeds the reinforcing fiber 2 from the nozzle of the head unit 25 toward the liner 5 while reciprocating the head unit 25 on the support shaft 26.

  The liner holding unit 30 holds the liner 5 while rotating the liner 5 at a predetermined rotation speed. The liner holding unit 30 includes first and second support units 32 and 33, a rotation shaft 34, and a rotation drive unit 35. Here, the liner 5 is a resin tank container having a cylindrical main body portion and dome portions provided at both ends thereof. A boss portion (not shown) is provided at the top of each dome portion. Each boss portion has a base and functions as a connection portion to which components such as a valve are attached.

  The first and second support portions 32 and 33 are respectively connected to the boss portions at both ends of the liner 5 via the rotation shaft 34 and support the liner 5 in a rotatable manner. The rotation drive unit 35 is configured by a motor, for example. The rotation driving unit 35 is connected so as to be able to transmit the rotation driving force to the liner 5 via the support shaft 34 on the second support unit 33 side, and rotates the liner 5 at a predetermined rotation speed. By the rotation of the liner 5, the reinforcing fiber 2 fed out from the fiber feeding portion 24 is wound around the outer surface of the liner 5.

  As described above, in the FW device 1, the plurality of reinforcing fibers 2 supplied from the fiber supply unit 10 are tightly gathered and wound around the liner 5 rotating at a predetermined rotation speed. The FW device 1 changes the wrapping angle of the reinforcing fiber 2 around the liner 5 by changing the displacement speed of the fiber feeding portion 24 on the support shaft 26 and the rotation speed of the liner 5, so-called hoop winding or helical winding. Can be executed.

  As described above, the reinforcing fiber 2 is unwound from the bobbin and supplied in each fiber unwinding section 11 of the fiber supply section 10. In the FW device 1 of the present embodiment, since each fiber unwinding portion 11 has a configuration described below, the reinforcing fiber 2 is smoothly unwound from the bobbin and sent out, so that the reinforcing fiber 2 is damaged. And deterioration is suppressed.

  2-4 is the schematic which shows the structure of the fiber unwinding part 11 in 1st Embodiment. FIG. 2 is a schematic perspective view of the fiber unwinding portion 11. FIG. 3 is a schematic front view of the fiber unwinding portion 11 when viewed in a direction perpendicular to a virtual plane formed by two virtual axes BX and SX. FIG. 4 is a schematic cross-sectional view of the fiber unwinding portion 11 at a cut surface perpendicular to the two virtual axes BX and SX. The virtual axis BX is the central axis (rotation axis) of the bobbin main body 51, and is indicated by a one-dot chain line in FIGS. The virtual axis SX is the central axis of the fixed shaft 53, and is indicated by a two-dot chain line in FIGS. Hereinafter, the virtual axes BX and SX are referred to as “center axis BX” and “center axis SX”, respectively.

  The fiber unwinding unit 11 includes a bobbin unit 50, a unwinding roller 60, and a yarn feeding roller 70. The bobbin portion 50 includes a bobbin main body portion 51, a flange 52, and a fixed shaft 53. The bobbin main body 51 is a substantially cylindrical rotating body that rotates about the central axis BX as a rotation axis. The reinforcing fiber 2 is wound around the bobbin main body 51 over the entire width direction. The flanges 52 are provided at both ends of the bobbin main body 51, and suppress the dropping of the reinforcing fibers 2 from the bobbin main body 51.

  The fixed shaft 53 is a holding shaft that holds the unwinding roller 60 at a position adjacent to the bobbin main body 51. The fixed shaft 53 is fixed to the flange 52 via the connecting portion 54. The fixed shaft 53 is arranged so that the central axis SX is parallel and parallel to the central axis BX of the bobbin main body 51.

  The unwinding roller 60 guides the reinforcing fiber 2 unwound from the bobbin main body 51 and sent out. The unraveling roller 60 includes a substantially cylindrical roller body 61 and flanges 63 attached to both ends thereof. The unwinding roller 60 is held on the fixed shaft 53 so as to be rotatable and reciprocally slidable by inserting the fixed shaft 53 of the bobbin portion 50 through the shaft hole 62 at the center thereof. The unwinding roller 60 may be provided with a bearing on the inner peripheral surface of the shaft hole 62. Further, the unwinding roller 60 may include a driving force source for reciprocating sliding on the fixed shaft 53.

  The unwinding roller 60 rotates around the central axis SX of the fixed shaft 53 while supporting the reinforcing fiber 2 fed from the bobbin main body 51 on the outer peripheral side surface of the roller main body 61 (hereinafter, the central axis SX). Is also referred to as “rotating axis SX”). The unwinding roller 60 is displaced on the fixed shaft 53 in accordance with the position (hereinafter also referred to as “unwinding position”) when the reinforcing fiber 2 is drawn out from the bobbin main body 51. In addition, the unwinding roller 60 has the followability to the displacement of the unwinding position of the reinforcing fiber 2 secured by the flange 63 suppressing the dropout of the reinforcing fiber 2 from the roller body 61.

  The yarn feeding roller 70 is fixed at a position separated from the bobbin portion 50 and the unwinding roller 60, and the reinforcing fiber 2 fed from the unwinding roller 60 is fed in a predetermined direction (inlet roller 21 of the fiber focusing and feeding portion 20). Send it back in the direction of The yarn feeding roller 70 includes a substantially cylindrical roller main body 71 that rotates in accordance with the travel of the reinforcing fibers 2 and flanges 72 that suppress the dropping of the reinforcing fibers 2 at both ends thereof. The yarn feeding roller 70 is rotatably supported by a support portion 73 at a predetermined position.

  Here, in the fiber unwinding portion 11, the unwinding position of the reinforcing fibers 2 in the bobbin main body portion 51 is reciprocated in the direction of the central axis BX of the bobbin main body portion 51, while the reinforcing fibers unwound from the bobbin main body portion 51. 2 is sent out to the yarn feeding roller 70 whose position is fixed. Therefore, in the fiber unwinding portion 11, the feeding angle α of the reinforcing fiber 2 from the bobbin main body portion 51 varies according to the displacement of the unwinding position of the reinforcing fiber 2 in the bobbin main body portion 51. The “feeding angle α of the reinforcing fiber 2 from the bobbin main body 51” means an angle between the central axis BX of the bobbin main body 51 and the feeding direction of the reinforcing fiber 2.

  In the fiber unwinding portion 11 of the present embodiment, the reinforcing fibers 2 fed out from the bobbin main body portion 51 are supported by the unwinding roller 60 arranged at a position adjacent to the bobbin main body portion 51, and the reinforcing fibers 2 delivery is assisted. Therefore, a load such as friction generated in the reinforcing fiber 2 in the bobbin main body 51 and the yarn feeding roller 70 is buffered by the support of the unwinding roller 60 due to the change in the feeding angle of the reinforcing fiber 2, and the twisting of the reinforcing fiber 2 occurs. The occurrence of deterioration such as wear is suppressed.

  Moreover, in the fiber unwinding part 11 of this embodiment, since the unwinding roller 60 moves following the variation of the unwinding position of the reinforcing fiber 2, the reinforcing fiber is between the unwinding roller 60 and the reinforcing fiber 2. Friction caused by fluctuations in the feed angle of 2 is reduced. Furthermore, in the fiber unwinding portion 11 of the present embodiment, the feeding of the reinforcing fibers 2 is assisted by the unwinding roller 60, so that the apparatus configuration becomes large as in the comparative example described below. Is suppressed.

  FIG. 5 is a schematic front view showing a configuration of a fiber unwinding portion 11c as a comparative example. In FIG. 5, the same reference numerals as those in FIGS. 2 to 4 are assigned to the components common to the components described in FIGS. 2 to 4. The fiber unwinding part 11c of the comparative example is substantially the same as the structure (FIGS. 2 to 4) of the fiber unwinding part 11 of the first embodiment except for the following points. The fiber unwinding part 11c of the comparative example has a bobbin part 50c in which the fixed shaft 53 and the unwinding roller 60 are omitted instead of the bobbin part 50. Further, in the fiber unwinding portion 11c of the comparative example, the distance between the bobbin portion 50c and the yarn feeding roller 70 is large.

  In the fiber unwinding part 11c of the comparative example, since the bobbin part 50c does not have the unwinding roller 60, the load generated in the reinforcing fiber 2 due to the fluctuation of the feed angle is not reduced. In the fiber unwinding portion 11c of the comparative example, in order to reduce the load generated in the reinforcing fiber 2, the bobbin portion 50c and the yarn feeding roller 70 are arranged so that the deflection angle β in the feeding direction of the reinforcing fiber 2 is reduced. It is necessary to increase the distance. Here, “the deflection angle β in the delivery direction of the reinforcing fibers 2” is an angle corresponding to the width of the variation angle in the feeding direction of the reinforcing fibers 2 with respect to the direction perpendicular to the central axis BX of the bobbin main body 51. Thus, in the fiber unwinding part 11c of a comparative example, in order to reduce the load which arises in the reinforced fiber 2, it is necessary to enlarge an apparatus structure.

  As described above, according to the FW device 1 of the present embodiment, the load generated on the reinforcing fiber 2 when the bobbin main body 51 is unwound by the unwinding roller 60 of the fiber unwinding unit 11 is reduced. Accordingly, unraveling and feeding of the reinforcing fibers 2 in the fiber supply unit 10 are facilitated, and damage and deterioration of the reinforcing fibers 2 are suppressed. Moreover, the distance between the bobbin part 50c and the yarn feeding roller 70 can be made small, and the apparatus structure can be reduced in size.

B. Second embodiment:
6 and 7 are schematic views showing the configuration of the unwinding roller 60A used in the FW device as the second embodiment of the present invention. FIG. 6 is a schematic perspective view of the unwinding roller 60A, and FIG. 7 is a schematic cross-sectional view of a cutting surface perpendicular to the rotation axis SX of the unwinding roller 60A. 6 and 7, the same reference numerals as those in FIGS. 1 to 4 are given to the components common to the components described in FIGS. 1 to 4.

  The FW device according to the second embodiment has substantially the same configuration as the FW device 1 according to the first embodiment (FIGS. 1 to 4) except that the unwinding roller 60 </ b> B is used instead of the unwinding roller 60. . The unwinding roller 60A of the second embodiment is substantially the same as the configuration of the unwinding roller 60 (FIGS. 2 to 4) of the first embodiment, except that two protrusions 64 are added to the roller body 61. The same. The two protrusions 64 are configured by plate-like members, and one ends of the two protrusions 64 are joined to the roller body 61 so as to protrude in opposite directions with the rotation axis SX interposed therebetween. By having the two protrusions 64, the unwinding roller 60B has a non-circular shape with a cut surface perpendicular to the rotation axis SX (FIG. 7).

  FIG. 8 is a schematic diagram for explaining a mechanism for feeding the reinforcing fibers 2 by the unwinding roller 60A of the second embodiment. In the upper and middle stages of FIG. 8, the state when the unwinding roller 60A of the second embodiment is rotating and feeding the reinforcing fibers 2 is illustrated step by step. Further, the lower part of FIG. 8 illustrates a state where the reinforcing fiber 2 is separated from the bobbin main body 51 of the bobbin part 50.

  The unwinding roller 60 </ b> A of the second embodiment rotates on the fixed shaft 53 and assists the feeding of the reinforcing fiber 2 that has been unwound from the bobbin main body 51 of the bobbin portion 50. During this rotation, the two blade-like projections 64 alternately push the reinforcing fibers 2 in the direction perpendicular to the rotation axis SX, and vibrate the reinforcing fibers 2 periodically (the upper and middle stages in FIG. 8). ). The vibration of the reinforcing fiber 2 is transmitted to the bobbin main body 51 of the bobbin portion 50, and generates a force that works in the direction in which the reinforcing fiber 2 is separated from the bobbin main body 51 (lower stage in FIG. 8).

  Here, in the bobbin main body 51, the reinforcing fibers 2 are in close contact with each other, so that it may be difficult to unwind the reinforcing fibers 2. In particular, when the reinforcing fiber 2 is a prepreg impregnated with a resin, there is a possibility that a high adhesion force is generated between the reinforcing fibers 2. However, with the unwinding roller 60A of the second embodiment, as described above, the reinforcing fiber 2 can be vibrated, and the force that promotes the separation of the reinforcing fiber 2 from the bobbin main body 51 can be generated. Accordingly, unraveling of the reinforcing fibers 2 from the bobbin main body 51 is facilitated.

  As described above, according to the FW device of the second embodiment, the unwinding roller 60 </ b> A assists the feeding of the reinforcing fiber 2, and vibrates the reinforcing fiber 2 to unwind the reinforcing fiber 2 from the bobbin main body 51. To make it easier. Therefore, unraveling and feeding of the reinforcing fiber 2 are facilitated, and damage and deterioration of the reinforcing fiber 2 are suppressed.

C. Third embodiment:
FIG. 9 is a schematic diagram illustrating a plurality of configuration examples of the unwinding roller used in the FW device according to the third embodiment of the present invention. In FIG. 9, a plurality of types of unwinding rollers 60Aa to 60Ad illustrated in a schematic sectional view similar to FIG. 7 are shown in parallel.

  Each unwinding roller 60Aa-60Ad of 3rd Embodiment is used in the fiber unwinding part 11 of the FW apparatus 1 demonstrated in 1st Embodiment. Each of the unwinding rollers 60Aa to 60Ad of the third embodiment, even if it does not have two blade-like projections 64 as in the unwinding roller 60A of the second embodiment, the reinforcing fiber 2 that is sent out. Can generate vibration.

  In the unraveling roller 60Aa, the cut surface orthogonal to the rotation axis SX of the roller body 61a has a substantially elliptical shape. In the unraveling roller 60Ab, the cut surface perpendicular to the rotation axis SX of the roller main body 61b has a shape in which two ellipses are overlapped. In the unraveling roller 60Ac, the cut surface orthogonal to the rotation axis SX of the roller main body 61c has a shape in which a part of the arc is deleted from the perfect circle shape. In the unwinding roller 60Ad, the cut surface orthogonal to the rotation axis SX of the roller main body 61d has a polygonal shape.

  Each of these unwinding rollers 60Aa to 60Ad has a non-circular shape in the cut surface perpendicular to the rotation axis SX of the portion in contact with the reinforcing fiber 2, and when the reinforcing fiber 2 is sent out, the reinforcing fiber 2 is It is periodically displaced in a direction perpendicular to the rotation axis SX. Accordingly, the reinforcing fiber 2 can be vibrated while the feeding of the reinforcing fiber 2 is maintained. Thus, according to the unwinding roller 60Aa-60Ad of 3rd Embodiment, the unwinding and sending out of the reinforcing fiber 2 from the bobbin main-body part 51 are facilitated similarly to the unwinding roller 60A of 2nd Embodiment. be able to.

D. Fourth embodiment:
10 and 11 are schematic views showing the configuration of the unwinding roller 60B used in the FW device as the fourth embodiment of the present invention. FIG. 10 is a schematic perspective view of the unwinding roller 60B of the fourth embodiment, and FIG. 11 is a schematic cross-sectional view of the cutting surface perpendicular to the rotation axis SX of the unwinding roller 60B of the fourth embodiment. 10 and 11, the same reference numerals as those in FIGS. 6 and 7 are assigned to the components common to the components described in FIGS. 6 and 7.

  The FW device of the fourth embodiment has substantially the same configuration as the FW device 1 (FIGS. 1 to 4) of the first embodiment, except that the configuration of the unwinding roller is different. The unwinding roller 60B of the fourth embodiment has substantially the same configuration as the unwinding roller 60A (FIGS. 6 and 7) of the second embodiment, except that two elastic protrusions 65 are added.

  The two elastic protrusions 65 are protrusions provided on the side surface of the roller main body 61 together with the two protrusions 64, and each is located between the two protrusions 64. The two elastic protrusions 65 protrude in opposite directions with respect to the rotation axis SX in the roller main body 61, and the height thereof elastically expands and contracts by contact with the reinforcing fiber 2 that is sent out. Each elastic protrusion 65 includes a curved plate 651, a support plate 652, and a biasing spring 653.

  The curved plate 651 is a plate-like member having one surface formed with a gentle curved surface. The curved plate 651 presses the surface of the reinforcing fiber 2 by the curved surface (described later). The support plate 652 is disposed so that one end portion protrudes from a hole 61 h formed in the roller body 61 in a direction perpendicular to the rotation axis SX. In the support plate 652, the one end protruding from the roller body 61 is joined to the center of the surface opposite to the curved surface of the curved plate 651. The urging spring 653 is accommodated in a hole 61 h formed in the roller main body 61 and urges the support plate 652 in a direction perpendicular to the rotation axis SX. As a result, the curved plate 651 supported by the support plate 652 is elastically displaced in a direction perpendicular to the rotation axis SX.

  FIG. 12 is a schematic diagram for explaining a mechanism for feeding the reinforcing fibers 2 by the unwinding roller 60B of the fourth embodiment. The upper stage and the lower stage of FIG. 12 illustrate in stages the state when the unwinding roller 60B of the fourth embodiment is rotating and feeding the reinforcing fibers 2. In the unwinding roller 60B of the fourth embodiment, when the reinforcing fiber 2 is sent out, the protrusion 64 pushes the reinforcing fiber 2 in a direction perpendicular to the rotation axis SX to displace the reinforcing fiber 2 (upper stage in FIG. 12).

  The elastic protrusion 65 receives the reinforcement fiber 2 returning toward the rotation axis SX after being pressed by the protrusion 64 (lower stage in FIG. 12). At this time, the vibration of the reinforcing fiber 2 is buffered by the elastic action of the biasing spring 653, and the reinforcing fiber 2 is prevented from vibrating unnecessarily. Further, the elastic protrusion 65 has a curved plate 651 to ensure an area for pressing the surface of the reinforcing fiber 2 when the reinforcing fiber 2 is sent out. In the unwinding roller 60B of the fourth embodiment, the surface of the reinforcing fiber 2 is smoothed by the pressing of the curved plate 651.

  As described above, in the FW device according to the fourth embodiment, the unwinding and feeding of the reinforcing fibers 2 are assisted by the unwinding roller 60B. Further, the elastic protrusions 65 of the unwinding roller 60B suppress excessive vibration of the reinforcing fibers 2 and level the fluff of the reinforcing fibers 2. Therefore, damage and deterioration of the reinforcing fiber 2 are further suppressed.

E. Fifth embodiment:
FIG. 13: is a schematic sectional drawing which shows the structure of the unwinding roller 60C used for the FW apparatus as 5th Embodiment of this invention. The FW device of the fifth embodiment has substantially the same configuration as the FW device 1 (FIGS. 1 to 4) of the first embodiment except that the configuration of the unwinding roller is different. The unwinding roller 60C of the fifth embodiment has the same configuration as the unwinding roller 60B (FIGS. 10 and 11) of the fourth embodiment, except that a curved plate 641 is added to the tips of the two protrusions 64. It is almost the same.

  The curved plate 641 presses the surface of the reinforcing fiber 2 by its curved surface, like the curved plate 651 of the elastic protruding portion 65, when the protruding portion 64 sends out the reinforcing fiber 2. As described above, in the case of the unwinding roller 60C of the fifth embodiment, the fuzz on the surface of the reinforcing fiber 2 is leveled by the curved plate 641 of the protruding portion 64 in addition to the curved plate 651 of the elastic protruding portion 65. Therefore, damage and deterioration of the reinforcing fiber 2 are further suppressed.

F. Variations:
F1. Modification 1:
In each of the above embodiments, the FW device 1 winds the reinforcing fiber 2 using the liner 5 as a mandrel. Of course, the FW device 1 does not need to use the liner 5 as a mandrel, and may wind the reinforcing fiber 2 using a component or a substrate other than the liner 5 as a mandrel. For example, the FW device 1 may form a reinforcing fiber layer on the outer surface of a plate-like member or a tubular member as a mandrel.

F2. Modification 2:
In each of the above embodiments, the reinforcing fiber 2 is pre-impregnated with a thermosetting resin, but the reinforcing fiber 2 may not be pre-impregnated with a resin such as a thermosetting resin. For example, the reinforcing fiber 2 may be impregnated with a resin such as a thermosetting resin after being sent out from the fiber supply unit 10.

F3. Modification 3:
In each of the above embodiments, the fiber supply unit 10 includes a plurality of fiber unwinding units 11, but the fiber supply unit 11 may include only one fiber unwinding unit 11. Moreover, in each said embodiment, although the fiber supply part 10 was mounted in FW apparatus 1, the fiber supply part 10 does not need to be mounted in FW apparatus 1, and fiber base materials other than FW apparatus 1 are used. You may mount in the other apparatus to utilize. The fiber supply unit 10 may be mounted on a loom device, for example.

F4. Modification 4:
In the fiber supply device 10 of each of the embodiments described above, only one unwinding roller 60 is provided between the bobbin unit 50 and the yarn feeding roller 70 in each fiber unwinding unit 11. On the other hand, a plurality of unwinding rollers 60 may be provided between the bobbin portion 50 and the yarn feeding roller 70, and the reinforcing fibers 2 may be supported in multiple stages.

F5. Modification 5:
In the fiber supply device 10 according to the second to fifth embodiments, the roller main body portions 61 and 61a to 61d of the unwinding rollers 60A, 60Aa to 60Ad, 60B, and 60C have non-regular cut surfaces perpendicular to the rotation axis SX. Although it was functioning as a vibration generating part that generates vibration in the reinforcing fiber 2 by being configured in a circular shape, the roller main body parts 61, 61a to 61d of the unwinding rollers 60A, 60Aa to 60Ad, 60B, and 60C are It does not have to function as a vibration generating unit. The fiber supply device 10 may include, for example, a vibration generating unit that applies vibration to the unwinding roller from the outside. In this case, the roller main body portion of the unwinding roller does not have to have a non-circular shape on the cut surface perpendicular to the rotation axis SX.

F6. Modification 6:
In each of the embodiments described above, the reinforcing fiber 2 is configured as a strip, but the reinforcing fiber 2 may not be configured as a strip. The reinforcing fiber 2 may have a substantially circular cross section.

F7. Modification 7:
In each of the above embodiments, the reinforcing fiber 2 is composed of carbon fibers impregnated with a thermosetting resin. However, as the fiber base material constituting the reinforcing fiber 2, other fiber base materials other than carbon fibers are used. It may be used. For example, glass fiber or aramid fiber may be used. Further, the resin impregnated in the reinforcing fibers 2 may not be a thermosetting resin, and may be another resin member. The resin impregnated in the reinforcing fiber 2 may be, for example, a phenol resin, a urea resin, a melamine resin, or an unsaturated polyester resin.

  The present invention is not limited to the above-described embodiments, examples, and modifications, and can be realized with various configurations without departing from the spirit thereof. For example, the technical features in the embodiments, examples, and modifications corresponding to the technical features in each embodiment described in the summary section of the invention are to solve some or all of the above-described problems, or In order to achieve part or all of the above effects, replacement or combination can be performed as appropriate. Further, if the technical feature is not described as essential in the present specification, it can be deleted as appropriate.

DESCRIPTION OF SYMBOLS 1 ... FW apparatus 2 ... Reinforcing fiber 5 ... Liner 10 ... Fiber supply part 11, 11c ... Fiber unwinding part 20 ... Fiber focusing delivery part 21 ... Inlet roller 22 ... Tension adjustment roller 23 ... Conveyance roller 24 ... Fiber delivery part 25 ... Head part 26 ... Support shaft 30 ... Liner holding part 32, 33 ... Support part 34 ... Rotating shaft 35 ... Rotation drive part 50, 50c ... Bobbin part 51 ... Bobbin main body part 52 ... Flange 53 ... Fixed shaft 54 ... Connection part 60, 60A, 60Aa-60Ad, 60B, 60C ... Unwinding roller 61, 61a-61d ... Roller body 61h ... Hole 62 ... Shaft hole 63 ... Flange 64 ... Projection 641 ... Curved plate 65 ... Elastic projection 651 ... Curved plate 652 ... Support plate 653 ... Biasing spring 70 ... Yarn feeding roller 71 ... Roller main body 72 ... Flange 73 ... Support part BX ... Center axis (rotating shaft) )
SX ... Center axis (rotary axis)

Claims (7)

A fiber supply device for delivering a fiber base material,
A bobbin around which the fiber base material is wound;
A roller that feeds the fiber base material fed out from the bobbin, and moves in the direction of the rotation axis of the bobbin at a position adjacent to the bobbin according to the position when the fiber base material is fed out from the bobbin. And a roller to
A delivery unit that sends out the fiber base material fed from the roller in a predetermined direction;
A fiber supply device. The fiber supply device according to claim 1,
The said roller has a vibration generation part which vibrates the said fiber base material, The fiber supply apparatus. The fiber supply device according to claim 2,
The roller is a main body portion that contacts the fiber base material and rotates in response to the feeding of the fiber base material, and a cut surface perpendicular to a rotation axis at a portion in contact with the fiber base material has a non-circular shape. Therefore, a fiber supply device including a main body that functions as the vibration generating unit by generating vibrations in the fiber base material as it rotates. The fiber supply device according to claim 3,
The main body portion protrudes in a direction intersecting with the rotation axis of the main body portion, and has a protrusion portion that pushes the fiber base material in a direction intersecting with the rotation axis at a portion in contact with the fiber base material. apparatus. The fiber supply device according to claim 4,
The main body further includes an elastic protrusion that protrudes in a direction crossing the rotation axis of the main body at a position adjacent to the protrusion in a portion that contacts the fiber base, and whose height changes elastically. Has a fiber supply device. The fiber supply device according to claim 5,
A fiber supply device, wherein a curved plate that presses the surface of the fiber base is provided at the tip of at least one of the protrusion and the elastic protrusion. A filament winding device,
The fiber supply device according to any one of claims 1 to 6,
A winding portion for winding the fiber base material fed from the fiber supply device around the mandrel;
A filament winding apparatus.

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