Single fiber winding device

Abstract

The invention provides a single fiber winding device which enables bobbin replacement work to be fully efficient. Wherein the circumferential winding unit (40) is provided with: a replacement cartridge (70) capable of supporting a plurality of bobbins (45) and having a fiber bundle guide (75) for guiding a plurality of fiber bundles pulled out from the plurality of bobbins to the circumferential surface of the sleeve; and a main body part (41) which supports the replacement box in a freely detachable manner and supports the installed replacement box in a rotatable manner around the shaft of the sleeve. The replacement cartridge has: a first portion (71) in which a first opening (71a) that constitutes a passage hole (44) is formed, and a plurality of bobbin holders (43) that rotatably support each of a plurality of bobbins are provided around the first opening; a second portion (74) which is separated from the first portion along the axial direction of the sleeve and is arranged side by side, in which a second opening (74a) that constitutes a passage hole is formed, and in which a fiber bundle guide (75) is arranged; and a connecting member connecting the first portion and the second portion.

Description

TECHNICAL FIELD

[0001] The present application relates to a single fiber winding device. BACKGROUND

[0002] A single fiber winding device that winds a fiber bundle impregnated with a thermosetting resin around a sleeve to manufacture a pressure vessel or the like is disclosed in Patent Literature 1. The single fiber winding device is provided with a circumferential winding unit that performs circumferential winding on the peripheral surface of the sleeve and a spiral winding unit that performs spiral winding on the peripheral surface of the sleeve. The circumferential winding unit is relatively movable in the axial direction of the sleeve with respect to the sleeve. The circumferential winding unit has a disc-shaped rotating member that is formed with a through hole through which the sleeve can pass, and a plurality of fiber bobbins (bobbins) that are arranged at equal intervals in the circumferential direction of the rotating member. By relatively moving the circumferential winding unit with respect to the sleeve while rotating the rotating member, the plurality of fiber bundle bobbins revolve around the sleeve, and the fiber bundles pulled out of the plurality of fiber bundle bobbins are simultaneously circumferentially wound around the peripheral surface of the sleeve.

[0003] PRIOR ART DOCUMENTS PATENT LITERATURE Patent Literature 1: Japanese Patent Application Publication No. 2018-144407 SUMMARY

[0004] PROBLEMS TO BE SOLVED BY THE INVENTION In the single fiber winding device as described above, when the bobbins of the circumferential winding unit are empty, a bobbin replacement work is required. In the bobbin replacement work, after the empty plurality of bobbins are detached from the circumferential winding unit, a new plurality of bobbins are installed in the circumferential winding unit, and fiber bundles are pulled out of each of the bobbins and hooked to a guide or the like. During the bobbin replacement work, the winding work of the fiber bundles around the sleeve is interrupted. Therefore, it is desirable to make the bobbin replacement work efficient.

[0005] In order to make the bobbin replacement work efficient, it is considered to provide the rotating member in which the plurality of bobbins are arranged as a replacement cartridge that is detachable from the main body of the circumferential winding unit. For example, when the bobbins are empty, the replacement cartridge can be detached from the main body, and another replacement cartridge in which a new plurality of bobbins are already installed can be installed in the main body. Also, by providing a fiber bundle guide that guides the fiber bundles pulled out of each of the bobbins to the peripheral surface of the sleeve in the replacement cartridge, the replacement cartridge in which the work of hooking the fiber bundles to the fiber bundle guide is also completed can be installed in the main body, and thus the bobbin replacement work can be made sufficiently efficient. However, it is difficult to arrange the fiber bundle guide while securing a space for supporting a large number of bobbins in the replacement cartridge.

[0006] An object of the present application is to provide a single fiber winding device that can make a bobbin replacement work sufficiently efficient.

[0007] MEANS FOR SOLVING THE PROBLEMS The first invention relates to a single fiber winding device that winds a fiber bundle around the peripheral surface of a sleeve in a cylindrical shape, and is provided with a circumferential winding unit that reciprocates in the axial direction of the sleeve relative to the sleeve and performs circumferential winding of the peripheral surface of the sleeve by the fiber bundle, characterized in that the circumferential winding unit has: a replacement cassette that is formed with a through hole through which the sleeve can pass in the axial direction of the sleeve, can support a plurality of bobbins, and has a fiber bundle guide that guides a plurality of fiber bundles drawn out from the plurality of bobbins to the peripheral surface of the sleeve; and a main body portion that detachably supports the replacement cassette and supports the installed replacement cassette so as to be rotatable around the axis of the sleeve, the replacement cassette has: a first portion that is formed with a first opening that constitutes the through hole, is provided with a plurality of bobbin supports that respectively support the plurality of bobbins so as to be rotatable around the periphery of the first opening; a second portion that is separated from the first portion in the axial direction of the sleeve and is arranged, is formed with a second opening that constitutes the through hole, and is provided with the fiber bundle guide; and a connecting member that connects the first portion and the second portion.

[0008] In the present invention, the replacement cassette that can support a plurality of bobbins and has a fiber bundle guide is detachable relative to the main body portion. Therefore, when the bobbins are empty, the replacement cassette can be detached from the main body portion, and another replacement cassette in which a new plurality of bobbins and fiber bundles drawn out from each bobbin are hooked on the fiber bundle guide can be installed in the main body portion. Therefore, the bobbin replacement work can be sufficiently efficient. In addition, in the replacement cassette, the plurality of bobbin supports that respectively support the plurality of bobbins are provided in the first portion, and the fiber bundle guide is arranged in the second portion, so that the fiber bundle guide can be arranged while ensuring a space to support a larger number of bobbins.

[0009] In the second invention, in the first invention, when the replacement cassette is installed in the main body portion, the first portion is located between the main body portion and the second portion in the axial direction of the sleeve.

[0010] In the present invention, the second portion in which the fiber bundle guide that guides the fiber bundle to the peripheral surface of the sleeve is arranged is located on the side opposite to the main body portion in the axial direction of the sleeve, across the first portion. Therefore, it is possible to avoid the components that constitute the replacement cassette from interfering with the supply of the fiber bundle from the fiber bundle guide to the peripheral surface of the sleeve.

[0011] The single fiber winding device according to the third aspect, in the second aspect, has a first connector supported to the main body portion and a second connector supported to the first portion and connectable with the first connector, and the replacement cassette has a motor as a drive source for moving the fiber bundle guide at least one of in the radial direction of the sleeve and in rotation around a rotation axis extending in the radial direction of the sleeve, and the first connector and the second connector are connected when the replacement cassette is attached to the main body portion, and the motor is supplied with electric power from the main body portion via the first connector and the second connector.

[0012] In the present application, the electric power supplied to the motor is supplied from the main body portion via the first connector and the second connector. Therefore, it is not necessary to provide a battery or the like for supplying electric power to the motor on the replacement cassette. Therefore, it is possible to avoid weight increase of the replacement cassette and to rotate the replacement cassette at high speed.

[0013] The single fiber winding device according to the fourth aspect, in the second aspect, has a rotation base portion attached to the main body portion so as to be rotatable around the axis of the sleeve, at least two protrusions are formed in either one of the rotation base portion and the first portion of the replacement cassette, at least two insertion holes are formed in the other one of the rotation base portion and the first portion of the replacement cassette, into which the at least two protrusions are respectively inserted when the replacement cassette is attached to the main body portion.

[0014] In the present application, when the replacement cassette is attached to the main body portion, the at least two protrusions are respectively inserted into the at least two insertion holes, and the positioning of the replacement cassette with respect to the main body portion is performed. Further, the replacement cassette is rotated together with the rotation base portion by the rotation of the rotation base portion. It is possible to suppress the shaking of the replacement cassette at this time.

[0015] The single fiber winding device according to the fifth aspect, in the fourth aspect, the first portion has a disc portion which is a disc having a first face opposite to the second portion, and a plurality of bobbin holders are provided on the first face, and a protrusion layer portion protruding from a second face of the disc portion opposite to the first face, and the at least two insertion holes are formed in the protrusion layer portion of the first portion.

[0016] In the present application, by forming the insertion holes in the protrusion layer portion different from the disc portion in which the bobbin holders supporting the bobbins are provided, it is possible to avoid the interference of the protrusions inserted into the insertion holes with the bobbins.

[0017] In the single fiber winding device according to the sixth aspect, in any one of the second to fifth aspects, the replacement cassette has a flange mounted to an outer circumference of the first portion and capable of relative rotation with respect to the sleeve axis of the sleeve, and the main body portion has a plurality of holding portions capable of holding the flange of the replacement cassette.

[0018] In the present application, by holding the flange of the replacement cassette with the holding portions, the replacement cassette can be held without interfering with rotation of the first portion and the second portion connected to the first portion by the connecting member. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 is a perspective view showing a single fiber winding device according to the present embodiment.

[0020] Figure 2 is a block diagram showing an electrical structure of the single fiber winding device.

[0021] Figure 3 (a) and (b) of FIG. 1 are front views of a spiral winding unit.

[0022] Figure 4 is a perspective view of a ring winding unit.

[0023] Figure 5 is a plan view of a single fiber winding device including a worktable and a replacement device.

[0024] Figure 6 is a front view of a ring winding unit, (a) shows a state where a replacement cassette is not installed, and (b) shows a state where the replacement cassette is installed.

[0025] Figure 7 is a sectional view of a ring winding unit, (a) shows a state where holding of a replacement cassette is released, and (b) shows a state where the replacement cassette is held.

[0026] Figure 8 is a perspective view of a holding portion, (a) shows a state where a pressing member is in a release position, and (b) shows a state where the pressing member is in a pressing position.

[0027] Figure 9 is a perspective view showing a relationship between a protrusion formed on a rotating base portion and an insertion hole formed on a replacement cassette.

[0028] Figure 10 is a perspective view showing a relationship between a connector supported on a rotating base portion and a connector supported on a replacement cassette.

[0029] Figure 11 (a) and (b) of FIG. 8 are diagrams for explaining a sequence of a bobbin replacement operation.

[0030] Figure 12 (a) and (b) are diagrams used to illustrate the sequence of the bobbin replacement operation. Detailed Implementation

[0031] (Single fiber winding device) The embodiments of the present invention will be described. Figure 1 This is a perspective view showing the single-fiber winding device 1 according to this embodiment. Figure 2 This is a block diagram showing the electrical structure of the single-fiber winding device 1. For ease of explanation, the following definitions are used: Figure 1 The directions shown are (front-back and left-right). The front-back and left-right directions are parallel to the horizontal direction. The front-back and left-right directions are orthogonal to each other. Additionally, the direction orthogonal to both the front-back and left-right directions is defined as the up-down direction. The up-down direction is the vertical direction of gravity.

[0032] The single-fiber winding device 1 simultaneously winds multiple fiber bundles onto the sleeve L (in Figure 1 (Illustrated in the diagram) A multi-fiber feeding device. The single-fiber winding device 1 includes a winding device 2, multiple bobbin holders 3, and multiple pretreatment sections 4. The single-fiber winding device 1 is constructed approximately symmetrically from left to right as a whole. The winding device 2 is used to wind the fiber bundle into a cylindrical sleeve L. The fiber bundle is, for example, a fiber bundle impregnated with a thermosetting or thermoplastic synthetic resin material in a fibrous material such as carbon fiber. The shape of the sleeve L can vary depending on the final product. For example, in the case where the final product is a pressure vessel, such as... Figure 1 As shown, sleeves L with rounded tops are used on both sides of the cylindrical section. High-strength aluminum, metal, resin, etc., are used as materials for sleeves L. After the fiber bundle is wound around the sleeve L, it undergoes a thermosetting process such as firing or a cooling process, thereby obtaining a final product such as a high-strength pressure vessel.

[0033] A plurality of creels 3 are arranged, for example, on both sides in the left-right direction of the winding device 2. A plurality of creels 3 are arranged, for example, in the front-rear direction near the rear end portion of the winding device 2. Each creel 3 has, for example, a substantially rectangular parallelepiped-shaped frame 11 extending in the front-rear direction. One or more spool support groups 12 are provided in the frame 11. The spool support groups 12 are provided, for example, corresponding to a plurality of nozzle units 53 of a spiral winding unit 50 described later. Each spool support group 12 has, for example, a plurality of (five in the present embodiment) spool supports 13 arranged in the front-rear direction. Each spool support 13 has, for example, a shaft extending in the left-right direction. Each spool support 13 supports a spool 14 on which a fiber bundle is wound so as to be rotatable. In the present embodiment, nine spool support groups 12 are provided, each of which has five spools 14 mounted thereon (i.e., a total of 45 spools 14 are arranged). Five fiber bundles are supplied from the five spools 14 belonging to each spool support group 12. The plurality of fiber bundles supplied from the creel 3 are wound on the sleeve L by the spiral winding unit 50. Further, in the present embodiment, the plurality of spool support groups 12 are arranged in the front-rear direction in the vicinity of the rear end portion of the winding device 2. However, the present application is not limited to this. For example, the plurality of spool support groups 12 can be arranged in the front-rear direction in the vicinity of the front end portion of the winding device 2. Figure 1 Two creels 3 are illustrated in FIG. 1, but the number of creels 3 is not limited thereto. In addition, in order to avoid complication of the drawing, only one of the plurality of spool support groups 12 is illustrated in FIG. 1. Figure 1

[0034] A plurality of pretreatment units 4 are configured to perform a predetermined pretreatment (e.g., tension application) on a plurality of fiber bundles. The plurality of pretreatment units 4 are arranged, for example, in the traveling direction of the fiber bundles between the corresponding creel 3 and the spiral winding unit 50 (described later).

[0035] (Winding device) A more specific configuration of the winding device 2 will be described. The winding device 2 includes a base 20, a support unit 30 (a first support unit 31 and a second support unit 32), a hoop winding unit 40, and a spiral winding unit 50.

[0036] The base 20 supports the support unit 30, the hoop winding unit 40, and the spiral winding unit 50. A plurality of rails 21 extending in the front-rear direction are provided on the upper surface of the base 20. The support unit 30 and the hoop winding unit 40 are movable in the front-rear direction along the rails 21. On the other hand, the spiral winding unit 50 is fixed, for example, with respect to the position of the base 20. The first support unit 31, the hoop winding unit 40, the spiral winding unit 50, and the second support unit 32 are arranged in this order from the front side to the rear side.

[0037] ​The support unit 30 has a first support unit 31 and a second support unit 32. The first support unit 31 is disposed at a position on the front side of the hoop winding unit 40. The second support unit 32 is disposed at a position on the rear side of the spiral winding unit 50. The support unit 30 supports the sleeve L so as to be rotatable about the axis via a support shaft 33 extending in the axial direction (front-rear direction) of the sleeve L. The support unit 30 has a moving motor 34 and a rotating motor 35 (refer to Figure 2 ). The moving motor 34 moves the support unit 30 (the first support unit 31 and the second support unit 32) in the front-rear direction along the rail 21. The rotating motor 35 rotates the sleeve L about the axis by rotating the support shaft 33. The operations of the moving motor 34 and the rotating motor 35 are controlled by the control device 5.

[0038] The hoop winding unit 40 performs hoop winding of the peripheral surface of the sleeve L. Hoop winding refers to a winding method in which the fiber bundle is wound in a direction substantially perpendicular to the axial direction of the sleeve L. The hoop winding unit 40 has, for example, a main body portion 41, a rotating member 42, and a plurality of (five in the present embodiment) bobbin holders 43. The main body portion 41 is movable in the front-rear direction along the rail 21. The rotating member 42 is a circular ring-shaped member formed with a through hole 44 through which the sleeve L can pass. The rotating member 42 is supported by the main body portion 41 so as to be rotatable about the axis of the sleeve L. The plurality of bobbin holders 43 are installed at the rotating member 42 at equal intervals in the circumferential direction of the rotating member 42. Each bobbin holder 43 has a rotating shaft extending in the front-rear direction, and supports a bobbin (not shown) in which the fiber bundle is wound so as to be rotatable.

[0039] The hoop winding unit 40 has a moving motor 46, a rotating motor 47, and a guide motor 76 (refer to Figure 2 ). The moving motor 46 moves the main body portion 41 in the front-rear direction along the rail 21. The rotating motor 47 rotates the rotating member 42 about the axis of the sleeve L. The operations of the moving motor 46 and the rotating motor 47 are controlled by the control device 5. When hoop winding is performed, the control device 5 moves the main body portion 41 to and fro along the rail 21 while rotating the rotating member 42. Thus, the fiber bundle is pulled out from each bobbin rotating about the sleeve L, and a plurality of fiber bundles are simultaneously hoop-wound to the peripheral surface of the sleeve L. Details of the guide motor 76 are described later.

[0040] The spiral winding unit 50 performs spiral winding on the circumferential surface of the sleeve L. Spiral winding refers to a winding method in which a fiber bundle is wound in a direction substantially parallel to the axial direction of the sleeve L. The spiral winding unit 50, for example, has a main body 51, a frame member 52, and a plurality of (nine in this embodiment) nozzle units 53. The main body 51 is, for example, fixedly mounted on the base 20. The frame member 52 is an annular member with a through hole 54 through which the sleeve L can pass. The frame member 52 is supported on the main body 51. The plurality of nozzle units 53 are arranged radially about the axis of the sleeve L. Each nozzle unit 53 is mounted on the frame member 52.

[0041] Figure 3 (a) and Figure 3 (b) is a front view of the spiral winding unit 50. In detail, Figure 3 Figure (a) shows the state in which a fiber bundle F is wound around the cylindrical part of the sleeve L. Figure 3 Figure (b) illustrates a state where a fiber bundle F is wound around the dome of the sleeve L. The nozzle unit 53 has a guide body 55 that guides the fiber bundle F toward the sleeve L. The guide body 55 extends radially (hereinafter simply referred to as radial) along the sleeve L and is configured to be radially movable and rotatable about a radially extending axis of rotation. Guide rollers 56 are arranged radially outward from each nozzle unit 53. Five fiber bundles F pulled from each bobbin support assembly 12 of the bobbin holder 3 are guided via the guide rollers 56 to any one of the guide bodies 55 and supplied to the sleeve L from the front end of the guide body 55.

[0042] The spiral winding unit 50 includes a guide moving motor 57 and a guide rotating motor 58 (see reference). Figure 2 The guide movement motor 57 moves all guide bodies 55 together radially. The guide rotation motor 58 rotates all guide bodies 55 together about a rotation axis. The actions of the guide movement motor 57 and the guide rotation motor 58 are controlled by the control device 5. During helical winding, the control device 5 causes the sleeve L to slowly rotate about the axis while passing through the through hole 54. At the same time, the control device 5 causes the guide body 55 of each nozzle unit 53 to move appropriately radially while rotating appropriately about the rotation axis. As a result, 5 fiber bundles F are appropriately pulled out from the front end of the guide body 55 of each nozzle unit 53, and a total of 45 fiber bundles F are simultaneously helically wound around the circumference of the sleeve L.

[0043] (Further components) Reference Figures 4-12 Further details regarding the configuration of the single-fiber winding device 1 will be provided. For example... Figure 4As shown, in this embodiment, the rotating component 42 of the circumferential winding unit 40 is a replacement box that can be freely mounted and detached from the main body 41. In the following description, the rotating component 42 will be referred to as the replacement box 70. As described later, the replacement box 70 can support a plurality of tubes 45. Furthermore, in the following description, the orientation of the construction of the replacement box 70 will be based on the replacement box 70 in its mounted position on the main body 41.

[0044] like Figure 5 As shown, the single-fiber winding apparatus 1 includes a worktable 85 and a replacement device 90. The worktable 85 is used for bobbin replacement operations on the replacement box 70. The replacement device 90 is used for replacing the replacement box 70 installed on the main body 41 of the circumferential winding unit 40. When the bobbin 45 of the circumferential winding unit 40 becomes empty, the replacement device 90 removes the replacement box 70 from the main body 41 and installs it on the worktable 85. Furthermore, the replacement device 90 removes the replacement box 70, after bobbin replacement operations have been performed on the worktable 85, from the worktable 85 and installs it on the main body 41 of the circumferential winding unit 40.

[0045] Here, a more detailed description of the circumferential winding unit 40 is provided. For example... Figure 6 (a) and Figure 7 As shown in (a) and (b), a fixing part 62 and a rotating base 63 are mounted on the main body 41. Both the fixing part 62 and the rotating base 63 are approximately annular. Both the fixing part 62 and the rotating base 63 are centered on a first imaginary straight line L1 extending along the axis of the sleeve L (see reference). Figure 6 The rotating base 63 is configured in the manner described in (a). The fixing part 62 is mounted radially outward of the rotating base 63. The fixing part 62 is fixedly mounted to the main body 41. The rotating base 63 is mounted to the main body 41 in a manner that allows it to rotate about the axis of the sleeve L. The drive source for the rotation of the rotating base 63 is a rotation motor 47 (see reference). Figure 2 ).

[0046] like Figure 6 of (a) Figure 7 (a), (b) and Figure 8 As shown in (a) and (b), a gripping part 64 capable of gripping the replacement box 70 installed on the main body 41 is provided on the main body 41. The gripping parts 64 are arranged in groups of two at four equal intervals around the fixing part 62. That is, a total of eight gripping parts 64 are provided. The arrangement and number of gripping parts 64 are not limited to this, and they may not be arranged in groups of two. The gripping part 64 has a pressing member 64a. The pressing member 64a can swing about an axis extending in a direction orthogonal to the front-rear direction. The pressing member 64a can reach a released position in the front-rear direction that is not opposite to the fixing part 62 (see reference). Figure 8 (a) and the pressing position opposite the fixing part 62 in the front-back direction (see reference).Figure 8 (b)

[0047] like Figure 7 As shown in (b), when the pressing member 64a is in the pressing position, the flange 78 of the replacement box 70 (described later) is clamped by the fixing part 62 and the pressing member 64a. Thus, the holding part 64 holds the replacement box 70. Figure 7 As shown in (a), when the pressing member 64a is in the released position, the holding part 64 releases the holding of the replacement box 70.

[0048] like Figure 6 As shown in (a), three protrusions 63a, 63b, and 63c protruding radially inward are formed on the inner periphery of the rotating base 63. Here, an imaginary line orthogonal to the first imaginary line L1 and passing through the protrusion 63a is designated as the second imaginary line L2. In this case, the protrusions 63a and 63b are located on the second imaginary line L2. Furthermore, the protrusions 63a and 63b are located on opposite sides of each other, separated by the first imaginary line L1. The protrusion 63c is located between the protrusions 63a and 63b.

[0049] like Figure 7 As shown in (a) and (b), protrusions 81a protruding rearward are formed in protrusions 63a and 63b, respectively. The two protrusions 81a formed in protrusions 63a and 63b, respectively, can be inserted into the two insertion holes 81b provided in the replacement box 70, as described later (see reference). Figure 9 ).

[0050] like Figure 6 As shown in (a), connector 82a is supported at protrusion 63c. That is, connector 82a is supported on main body 41 via rotating base 63. Connector 82a can be coupled to connector 82b supported by replacement housing 70 (see below) as described later. Figure 10 Connector 82a corresponds to the first connector of the present invention. Connector 82b corresponds to the second connector of the present invention.

[0051] like Figure 4 As shown, the replacement box 70 is an annular shape with a through hole 44 formed in the axial direction (front-back direction) of the sleeve L, through which the sleeve L can pass. As described above, the replacement box 70 can support multiple bobbins 45. Furthermore, the replacement box 70 includes a fiber bundle guide 75 and a guiding motor 76 for driving the fiber bundle guide 75. The fiber bundle guide 75 guides multiple fiber bundles F pulled from the multiple bobbins 45 to the circumferential surface of the sleeve L. Figure 6 As shown in (b), the replacement box 70 is provided with multiple rollers 79 that guide multiple fiber bundles F pulled from multiple bobbins 45 to fiber bundle guides 75. Furthermore, the replacement box 70 is provided with a tension application mechanism (not shown) for applying tension to the fiber bundles F.

[0052] The fiber bundle guide 75 extends radially along the sleeve L. The fiber bundle guide 75 is configured to be movable radially along the sleeve L. Furthermore, the fiber bundle guide 75 is configured to be movable about a rotation axis extending radially along the sleeve L (in... Figure 6 The axis (represented by the double-dotted line in (b)) rotates. The guide motor 76 is a drive source for moving the fiber bundle guide 75 radially along the sleeve L and rotating it about a rotation axis extending radially along the sleeve L. The operation of the guide motor 76 is controlled by the control device 5 (see reference 5). Figure 2 )control.

[0053] like Figure 7 As shown in (a) and (b) of 7, the replacement box 70 includes a first part 71, a second part 74, a connecting part 77, and a flange 78. Figure 4 As shown, both the first part 71 and the second part 74 are approximately annular. The second part 74 is separated from the first part 71 and arranged along the axial direction (front-back direction) of the sleeve L. When the replacement box 70 is installed on the main body 41, the first part 71 is located between the main body 41 and the second part 74 along the axial direction (front-back direction) of the sleeve L. Figure 7 As shown in (a) and (b), the connecting member 77 connects the first part 71 and the second part 74. The flange 78 is configured to rotate relative to the first part 71 about the axis of the sleeve L.

[0054] The first portion 71 has a first opening 71a forming a through hole 44 in its central part. Around the first opening 71a, a plurality of tube supports 43 (five in this embodiment) are provided in the first portion 71. Figure 7 As shown in (a) and (b), the first part 71 has a disc portion 72 and a protruding layer portion 73. The disc portion 72 is disc-shaped and has a first surface 72a opposite to the second part 74. The tube support 43 is provided on the first surface 72a of the disc portion 72. The protruding layer portion 73 protrudes from the second surface 72b of the disc portion 72 opposite to the first surface 72a.

[0055] Two insertion holes 81b are formed in the protruding layer 73. When the replacement box 70 is installed on the main body 41, as follows: Figure 9 As shown, the protrusion 81a formed on the rotating base 63 is positioned opposite the insertion hole 81b formed on the replacement box 70. Furthermore, when the replacement box 70 is mounted on the main body 41, the two protrusions 81a formed on the rotating base 63 are respectively inserted into the two insertion holes 81b formed on the replacement box 70. By inserting the two protrusions 81a into the two insertion holes 81b, the replacement box 70 is supported by the main body 41 via the rotating base 63. At this time, the replacement box 70 is positioned relative to the main body 41. Additionally, by rotating the rotating base 63, the replacement box 70 rotates together with the rotating base 63.

[0056] like Figure 10 As shown, a connector 82b is supported on the protruding layer 73. When the replacement box 70 is installed on the main body 41, the connector 82a supported on the rotating base 63 and the connector 82b supported on the replacement box 70 are positioned opposite each other. Furthermore, when the replacement box 70 is installed on the main body 41, the connector 82b is connected to the connector 82a supported on the rotating base 63. At this time, power can be supplied from the main body 41 to the guide motor 76 via the connectors 82a and 82b. In addition, a trigger signal for rotating the guide motor 76 is sent from the main body 41 to the guide motor 76 via the connectors 82a and 82b.

[0057] return Figure 4 The second part 74 has a second opening 74a forming a through hole 44 in its central portion. A fiber bundle guide 75 and a guide motor 76 are disposed in the second part 74. The fiber bundle guide 75 and the guide motor 76 are disposed on the side of the second part 74 opposite to the side of the first part 71 in the axial (front-back direction) direction of the sleeve L.

[0058] like Figure 7 As shown in (a) and (b), the connecting member 77 is disposed between the first part 71 and the second part 74 in the axial (front-back direction) direction of the sleeve L. Multiple connecting members 77 are provided along the circumference of the replacement box 70.

[0059] like Figure 7 As shown in (a) and (b), the flange 78 is mounted on the outer periphery of the first portion 71. As described above, the flange 78 is configured to rotate relative to the first portion 71 about the axis of the sleeve L. The replacement box 70 is mounted on the main body 41 with the flange 78 facing the fixing portion 62 mounted on the main body 41. Therefore, when the replacement box 70 is mounted on the main body 41, as Figure 7 As shown in (b), by placing the pressing member 64a of the gripping part 64 in the pressing position, the flange 78 of the replacement box 70 is clamped by the fixing part 62 and the pressing member 64a. In this state, when the rotating base 63 is rotated, the flange 78 does not rotate, and the first part 71 and the second part 74 connected to the first part 71 via the connecting member 77 rotate together with the rotating base 63.

[0060] like Figure 5As shown, the worktable 85 is positioned to the left of the base 20 of the winding device 2. The worktable 85 is located near the front end of the winding device 2 in the front-rear direction. The worktable 85 is situated at the boundary between the work area A1 where the operator performs bobbin replacement work on the replacement box 70 and the operating area A2 of the single-fiber winding device 1. The front side of the worktable 85 is the work area A1, and the rear side of the worktable 85 is the operating area A2. The worktable 85 can support the replacement box 70 on both sides in the front-rear direction. Furthermore, the worktable 85 is configured to rotate freely about an axis extending in the vertical direction.

[0061] The changing device 90 is located in the operating area A2. The changing device 90 mainly includes a track 91, a telescopic part 92, and a holding part 93. The track 91 is located behind the worktable 85 and extends in the front-to-back direction. The telescopic part 92 can move along the track 91 in the front-to-back direction. The telescopic part 92 can extend towards the base 20 (right side). The holding part 93 is configured to hold the replacement box 70. The holding part 93 is mounted in front of the telescopic part 92. By extending and retracting the telescopic part 92 in the left-to-right direction, the holding part 93 can achieve a position opposite to the main body 41 of the circumferential winding unit 40 and opposite to the worktable 85 in the front-to-back direction.

[0062] (Bolling replacement operation) Here, refer to Figure 11 (a), (b) and Figure 12 Sections (a) and (b) explain the sequence of the tube replacement operation. Additionally, in Figure 11 and Figure 12 In the diagram, the replacement box 70 before the tube replacement operation (when the supported tube 45 is empty) is shown in white, and the replacement box 70 after the tube replacement operation is shown in black.

[0063] When the tube 45 of the circumferential winding unit 40 becomes empty, firstly, as Figure 11 As shown in (a), the telescopic portion 92 of the replacement device 90 is extended. As a result, the holding portion 93 is positioned opposite the main body 41 of the circumferential winding unit 40. The holding portion 93 holds the replacement box 70 mounted on the main body 41, and the replacement box 70 is removed from the main body 41.

[0064] Next, as Figure 11 As shown in (b), the telescopic part 92 of the changing device 90 is retracted, and the telescopic part 92 is moved forward. Furthermore, the holding part 93 mounts the held replacement box 70 onto the opposing worktable 85. Thus, the replacement box 70 before the bobbin changing operation is supported on the surface of the worktable 85 on the operating area A2 side. Additionally, at this time, the replacement box 70 after the bobbin changing operation is supported on the surface of the worktable 85 on the working area A1 side.

[0065] Next, asFigure 12 As shown in (a), the worktable 85 is rotated. Thus, the replacement box 70, supported on the worktable 85 before the tube replacement operation, is located on the work area A1 side, and the replacement box 70 after the tube replacement operation is completed is located on the operation area A2 side. The operator performs the tube replacement operation on the replacement box 70 located on the work area A1 side.

[0066] On the other hand, the replacement device 90 supports the replacement box 70, which is supported on the worktable 85 after the tube replacement operation is completed, via the holding part 93, and removes the replacement box 70 from the worktable 85. Then, as Figure 12 As shown in (b), the telescopic part 92 moves rearward and extends. Then, the holding part 93 mounts the held replacement box 70 to the main body 41 of the opposite circumferential winding unit 40.

[0067] (Features of the implementation method) As described above, the single-fiber winding apparatus 1 of this embodiment includes a circumferential winding unit 40, which reciprocates along the track 21 (along the axial direction of the sleeve L) and performs circumferential winding on the circumferential surface of the cylindrical sleeve L using fiber bundles F. The circumferential winding unit 40 includes: a replacement box 70, which has a through hole 44 formed in the axial direction of the sleeve L through which the sleeve L can pass, can support a plurality of bobbins 45, and has fiber bundle guides 75 that guide a plurality of fiber bundles F pulled out from the plurality of bobbins 45 to the circumferential surface of the sleeve L; and a main body 41, which supports the replacement box 70 for easy loading and unloading, and supports the installed replacement box 70 for rotation about the axis of the sleeve L. The replacement box 70 has: a first part 71 having a first opening 71a forming a through hole 44, and a plurality of tube supports 43 supporting a plurality of tubes 45 for rotation around the first opening 71a; a second part 74 being separated from the first part 71 and arranged along the axial direction of the sleeve L, having a second opening 74a forming a through hole 44, and having a fiber bundle guide 75 disposed thereon; and a connecting member 77 connecting the first part 71 and the second part 74.

[0068] According to the above configuration, the replacement box 70, which can support multiple bobbins 45 and has a fiber bundle guide 75, can be freely installed and removed from the main body 41. Therefore, when the bobbins 45 are empty, the replacement box 70 can be detached from the main body 41, and other replacement boxes 70 with multiple new bobbins 45 installed and the fiber bundles F pulled from each bobbins 45 hooked onto the fiber bundle guide 75 can be installed on the main body 41. Therefore, the bobbin replacement operation can be made highly efficient. In addition, in the replacement box 70, multiple bobbin supports 43 that support multiple bobbins 45 are provided in the first part 71, and the fiber bundle guide 75 is arranged in the second part 74. Therefore, the fiber bundle guide 75 can be arranged while ensuring space to support a large number of bobbins 45.

[0069] Further, in the single fiber winding device 1 of the above-described embodiment, when the replacement cassette 70 is attached to the main body 41, the first portion 71 is positioned between the main body 41 and the second portion 74 in the axial direction of the sleeve L. That is, the second portion 74 in which the fiber bundle guide 75 that guides the fiber bundle F toward the peripheral surface of the sleeve L is arranged is positioned on the side opposite to the main body 41 with the first portion 71 interposed in the axial direction of the sleeve L. Therefore, it is possible to avoid the supply of the fiber bundle F from the fiber bundle guide 75 to the peripheral surface of the sleeve L being hindered by the components that constitute the replacement cassette 70.

[0070] Further, the single fiber winding device 1 of the above-described embodiment is provided with a connector 82a supported by the main body 41 and a connector 82b supported by the first portion 71 and connectable with the connector 82a. Further, the replacement cassette 70 has a guide motor 76 that is a drive source for causing the fiber bundle guide 75 to move in the radial direction of the sleeve L and rotate around the rotation axis extending in the radial direction of the sleeve L, and if the replacement cassette 70 is attached to the main body 41, the connector 82a and the connector 82b are connected, and it is possible to supply electric power from the main body 41 to the guide motor 76 via the connector 82a and the connector 82b. Therefore, the electric power supplied to the guide motor 76 is delivered from the main body 41 via the connector 82a and the connector 82b. Therefore, it is not necessary to provide a battery or the like for supplying electric power to the guide motor 76 in the replacement cassette 70. Thus, it is possible to avoid the weight of the replacement cassette 70 from increasing and to cause the replacement cassette 70 to rotate at high speed.

[0071] Further, the single fiber winding device 1 of the above-described embodiment is provided with a rotation base 63 attached to the main body 41 in a manner rotatable around the axis of the sleeve L. Two protrusions 81a are formed in the rotation base 63, and two insertion holes 81b that can respectively insert the two protrusions are formed in the first portion 71 of the replacement cassette 70. Further, when the replacement cassette 70 is attached to the main body 41, the two protrusions 81a are respectively inserted into the two insertion holes 81b. In this way, when the replacement cassette 70 is attached to the main body 41, by respectively inserting the two protrusions 81a into the two insertion holes 81b, it is possible to position the replacement cassette 70 with respect to the main body 41. Further, by rotating the rotation base 63, the replacement cassette 70 rotates together with the rotation base 63. It is possible to suppress the shaking of the replacement cassette 70 at this time.

[0072] Further, in the single fiber winding device 1 of the above-described embodiment, the first portion 71 is a disc shape having a first face 72a opposite to the second portion 74, has a disc portion 72 in which a plurality of the bobbin holders 43 are provided on the first face 72a, and a protruding layer portion 73 protruding from a second face 72b opposite to the first face 72a in the disc portion 72. Also, two insertion holes 81b are formed in the protruding layer portion 73 of the first portion 71. In this way, by forming the insertion holes 81b in the protruding layer portion 73 different from the disc portion 72 in which the bobbin holders 43 supporting the bobbins 45 are provided, interference of the protrusions 81a inserted into the insertion holes 81b with the bobbins 45 can be avoided.

[0073] Also, in the single fiber winding device 1 of the above-described embodiment, the replacement cassette 70 is attached to the outer periphery of the first portion 71, has a flange 78 that can relatively rotate around the axis of the sleeve L with respect to the first portion 71, and the main body portion 41 has a plurality of holding portions 64 that can hold the flange 78 of the replacement cassette 70. Therefore, by holding the flange 78 of the replacement cassette 70 with the holding portions 64, the replacement cassette 70 can be held without interfering with the rotation of the first portion 71 and the second portion 74 connected to the first portion 71 by the connecting member 77.

[0074] The above-described embodiments of the present application have been described based on the drawings, but it should be considered that the specific configurations are not limited to these embodiments. The scope of the present application is not shown by the above-described embodiments, but is shown by the scope of the patent claim, and includes the same meaning and all modifications within the scope of the patent claim.

[0075] In the above-described embodiments, the case where the first portion 71 in which the plurality of bobbin holders 43 are provided is located between the main body portion 41 and the second portion 74 in which the fiber bundle guide 75 is disposed in the axial direction of the sleeve L when the replacement cassette 70 is attached to the main body portion 41 has been described, but it is not limited thereto. That is, the first portion 71 can be located on the side opposite to the main body portion 41 across the second portion 74 in the axial direction of the sleeve L.

[0076] Further, in the above-described embodiments, the case where the fiber bundle guide 75 is configured to be movable in the radial direction of the sleeve L and rotatable around the rotation axis extending in the radial direction of the sleeve L has been described, but it is not limited thereto. The fiber bundle guide 75 can be configured to be movable in the radial direction of the sleeve L and rotatable around the rotation axis extending in the radial direction of the sleeve L only one of them. Further, the fiber bundle guide 75 can be configured not to be movable and rotatable.

[0077] Further, in the above-described embodiment, the case where the guide motor 76 is a drive source for moving the fiber bundle guide 75 in the radial direction of the sleeve L and rotating the fiber bundle guide 75 about the rotation axis extending in the radial direction of the sleeve L has been described, but is not limited thereto. For example, a motor that is a drive source for moving the fiber bundle guide 75 in the radial direction of the sleeve L and a motor that is a drive source for rotating the fiber bundle guide 75 about the rotation axis extending in the radial direction of the sleeve L can be provided separately and independently. In this case, in the case where the replacement cassette 70 is provided with a plurality of motors, the electric power supplied from the main body portion 41 via the connector 82a and the connector 82b is supplied to at least one motor.

[0078] Further, in the above-described embodiment, the case where the guide motor 76 is a drive source for moving the fiber bundle guide 75 in the radial direction of the sleeve L and rotating the fiber bundle guide 75 about the rotation axis extending in the radial direction of the sleeve L has been described, but is not limited thereto. For example, a motor that is a drive source for moving the fiber bundle guide 75 in the radial direction of the sleeve L and a motor that is a drive source for rotating the fiber bundle guide 75 about the rotation axis extending in the radial direction of the sleeve L can be provided separately and independently. In this case, in the case where the replacement cassette 70 is provided with a plurality of motors, the electric power supplied from the main body portion 41 via the connector 82a and the connector 82b is supplied to at least one motor.

[0079] Further, in the above-described embodiment, the case where the guide motor 76 is a drive source for moving the fiber bundle guide 75 in the radial direction of the sleeve L and rotating the fiber bundle guide 75 about the rotation axis extending in the radial direction of the sleeve L has been described, but is not limited thereto. For example, a motor that is a drive source for moving the fiber bundle guide 75 in the radial direction of the sleeve L and a motor that is a drive source for rotating the fiber bundle guide 75 about the rotation axis extending in the radial direction of the sleeve L can be provided separately and independently. In this case, in the case where the replacement cassette 70 is provided with a plurality of motors, the electric power supplied from the main body portion 41 via the connector 82a and the connector 82b is supplied to at least one motor.

[0080] Further, in the above-described embodiment, the case where the guide motor 76 is a drive source for moving the fiber bundle guide 75 in the radial direction of the sleeve L and rotating the fiber bundle guide 75 about the rotation axis extending in the radial direction of the sleeve L has been described, but is not limited thereto. For example, a motor that is a drive source for moving the fiber bundle guide 75 in the radial direction of the sleeve L and a motor that is a drive source for rotating the fiber bundle guide 75 about the rotation axis extending in the radial direction of the sleeve L can be provided separately and independently. In this case, in the case where the replacement cassette 70 is provided with a plurality of motors, the electric power supplied from the main body portion 41 via the connector 82a and the connector 82b is supplied to at least one motor.

[0081] Further, in the above-described embodiment, the case where the guide motor 76 is a drive source for moving the fiber bundle guide 75 in the radial direction of the sleeve L and rotating the fiber bundle guide 75 about the rotation axis extending in the radial direction of the sleeve L has been described, but is not limited thereto. For example, a motor that is a drive source for moving the fiber bundle guide 75 in the radial direction of the sleeve L and a motor that is a drive source for rotating the fiber bundle guide 75 about the rotation axis extending in the radial direction of the sleeve L can be provided separately and independently. In this case, in the case where the replacement cassette 70 is provided with a plurality of motors, the electric power supplied from the main body portion 41 via the connector 82a and the connector 82b is supplied to at least one motor.

[0082] Moreover, in the above-described embodiment, the case where the main body 41 has the plurality of gripping portions 64 capable of gripping the flange 78 of the replacement cassette 70 is described, but is not limited thereto. The gripping portion 64 can grip a portion other than the flange 78 of the replacement cassette 70. In addition, the gripping portion 64 can not be provided.

[0083] Furthermore, in the above-described embodiment, the case where the circumferential winding is performed while the main body 41 is reciprocated along the rail 21 (in the axial direction of the sleeve L) is described, but is not limited thereto. For example, the circumferential winding can be performed while the sleeve L is reciprocated in the axial direction. That is, the circumferential winding can be performed while the sleeve L and the main body 41 are reciprocated in the axial direction of the sleeve L.

[0084] Furthermore, in the above-described embodiment, the case where the replacement cassette 70 has one fiber bundle guide 75 and the guide motor 76 that drives the fiber bundle guide 75 is described, but is not limited thereto. The replacement cassette 70 can have a plurality of fiber bundle guides 75.

[0085] In addition, the single fiber winding device 1 of the above-described embodiment is a winding device that winds the fiber bundle F to the sleeve L by the circumferential winding unit 40 and the spiral winding unit 50. However, the present application can also be applied to a single fiber winding device that winds the fiber bundle F to the sleeve L using only the circumferential winding unit 40.

[0086] Explanation of Reference Signs 1 single fiber winding device 40 circumferential winding unit 41 main body 43 bobbin support 44 through hole 45 bobbin 63 rotation base 64 gripping portion 70 replacement cassette 71 first portion 71a first opening 72 disc portion 72a first face 72b second face 73 protruding layer portion 74 second portion 74a second opening 75 fiber bundle guide 76 guide motor (motor) 77 connecting member 78 flange 81a protrusion 81b insertion hole 82a connector (first connector) 82b connector (second connector) L sleeve

Claims

1. A single fiber winding device that winds a fiber bundle around a peripheral surface of a sleeve that is in a cylindrical shape, comprising a circumferential winding unit that reciprocates in an axial direction of the sleeve with respect to the sleeve and performs circumferential winding of the peripheral surface of the sleeve by the fiber bundle, characterized in that the circumferential winding unit has: a replacement cassette that is formed with a through hole through which the sleeve can pass in the axial direction of the sleeve, can support a plurality of bobbins, and has a fiber bundle guide that guides a plurality of fiber bundles drawn out from the plurality of bobbins to the peripheral surface of the sleeve; and a main body portion that detachably supports the replacement cassette and supports the installed replacement cassette so as to be rotatable around an axis of the sleeve, the replacement cassette has: a first portion that is formed with a first opening that constitutes the through hole, is provided with a plurality of bobbin holders that respectively support the plurality of bobbins so as to be rotatable around the axis of the sleeve in the periphery of the first opening; a second portion that is separated from the first portion in the axial direction of the sleeve and is arranged, is formed with a second opening that constitutes the through hole, and is provided with the fiber bundle guide; and a connecting member that connects the first portion and the second portion.

2. The single fiber winding device according to claim 1, characterized in that: the first portion is located between the main body portion and the second portion in the axial direction of the sleeve when the replacement cassette is installed in the main body portion.

3. The single fiber winding device according to claim 2, characterized in that: a first connector that is supported by the main body portion and a second connector that is supported by the first portion are provided, the first connector is connectable with the second connector, the replacement cassette has a motor as a drive source for causing the fiber bundle guide to perform at least either of movement in a radial direction of the sleeve and rotation around a rotation axis that extends in the radial direction of the sleeve, and the first connector and the second connector are connected when the replacement cassette is installed in the main body portion, and power can be supplied from the main body portion to the motor via the first connector and the second connector.

4. The single fiber winding device according to claim 2, characterized in that: a rotation base portion that is installed in the main body portion so as to be rotatable around the axis of the sleeve is provided, at least two protrusions are formed in either one of the rotation base portion and the first portion of the replacement cassette, at least two insertion holes into which the at least two protrusions are respectively inserted are formed in the other one of the rotation base portion and the first portion of the replacement cassette than the one in which the protrusions are formed, and the at least two protrusions are respectively inserted into the at least two insertion holes when the replacement cassette is installed in the main body portion.

5. The single fiber winding device according to claim 4, characterized in that: the first portion has: a disc portion that is disc-shaped with a first face opposite to the second portion, and is provided with the plurality of bobbin holders in the first face; and a protruding layer portion that protrudes from a second face of the disc portion opposite to the first face. ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ The at least two insertion holes are formed in the protruding layer portion of the first portion.

6. The single fiber winding device according to any one of claims 2 to 5, characterized in that: The replacement cartridge has a flange mounted to an outer periphery of the first portion and relatively rotatable with respect to the first portion about an axis of the sleeve, The main body portion has a plurality of gripping portions capable of gripping the flange of the replacement cartridge.

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