JP7087843B2 - Filament winding device - Google Patents

Description

The present invention relates to a filament winding device that winds a fiber bundle around a liner.

Patent Document 1 discloses a filament winding device including a helical winding unit for helically winding a fiber bundle on a liner. The helical winding unit is a frame member having a passage hole through which the liner can pass in the horizontal direction, and a plurality of fiber bundles attached to the frame member and arranged side by side in the circumferential direction of the passage hole to guide the fiber bundle to the liner. It has a guide (nozzle). Further, the plurality of nozzles are configured to be able to expand and contract in the radial direction of the liner all at once by the moving mechanism, and are configured to be rotatable all at once with the extending direction of each nozzle as the rotation axis direction by the rotation mechanism.

More specifically, the moving mechanism has a rotary cylinder provided coaxially with the central axis of the passage hole, and a plurality of driven gears (driven members) provided corresponding to each nozzle. The rotary cylinder is rotatably fitted in the frame member and is rotationally driven by a motor. Each driven member meshes with teeth formed on the inner peripheral surface of the rotary cylinder, and the driven member rotates with the rotation of the rotary cylinder to transmit the power of the motor to each nozzle. Here, a part of the plurality of driven members is in contact with the inner peripheral surface of the rotary cylinder from below. As a result, the weight of the upper portion of the rotary cylinder is received by some of the driven members, and the rotary cylinder is suppressed from bending due to its own weight. The rotating mechanism, like the moving mechanism, also has a rotating cylinder and a plurality of driven members.

Japanese Patent No. 5643322

In general, the optimum number of fiber bundles helically wound at one time can be changed according to the diameter of the liner and the like, so that the number of nozzles attached to the frame member may be reduced, for example. Here, for example, when the nozzle and the driven member are unitized (that is, when the number of nozzles is changed, the number of driven members is also changed), the weight of the rotary cylinder is increased when the number of nozzles is small. The number of driven members to be received is reduced, and the upper portion of the rotary cylinder may be easily bent due to its own weight. Further, not limited to the above-mentioned case, if there are few members that receive the weight of the rotary cylinder, there may be a problem that the rotary cylinder tends to bend due to its own weight.

An object of the present invention is to suppress bending due to the weight of the rotating cylinder.

The filament winding device of the first invention is a filament winding device including a helical winding unit in which a fiber bundle is helically wound around a liner, and the helical winding unit has a through hole through which the liner can pass at least in a horizontal direction. A frame member, and a first rotary cylinder which is arranged on one side of the frame member in the axial direction of the passage hole and is provided so that the liner can be inserted and is rotationally driven by a first drive source. Each of the nozzle members for guiding the fiber bundle to the liner is attached to the frame member and arranged on the downstream side of the first rotary cylinder in the power transmission direction of the first drive source. The expansion / contraction operation and the rotation operation of each nozzle member are performed by contacting a plurality of nozzle units that perform one of the expansion / contraction operation and the rotation operation of the nozzle member by power and the inner peripheral surface of the first rotary cylinder, respectively. A plurality of first driven members that cause each nozzle unit to perform one of the rotational operations, and the plurality of first driven members are separately provided and attached to the frame member, and the inside of the first rotating cylinder. It is characterized by including a first support member that contacts the peripheral surface from below and rotatably supports the first rotary cylinder.

In the present invention, first, among a plurality of first driven members that are driven and rotated with the rotation of the first rotating cylinder, the first driven member that is in contact with the inner peripheral surface of the first rotating cylinder from below makes the first rotation. Can support the cylinder. In addition, in the present invention, the first rotary cylinder can be supported by a first support member different from the first driven member. Thereby, even when the number of the first driven members supporting the first rotary cylinder is small, the weight of the first rotary cylinder can be received. Therefore, it is possible to suppress the deflection of the first rotary cylinder due to its own weight.

In the filament winding apparatus of the second invention, in the first invention, the first support member is rotatably supported by the frame member, and is driven to rotate in contact with the inner peripheral surface of the first rotary cylinder. It is characterized by being a rotating member.

In the present invention, since both the first support member and the first driven member are rotating members, the same type of member can be applied to the first support member and the first driven member. Therefore, as compared with the case where a member having a structure different from that of the first driven member, such as a sliding member configured to be slidable with respect to the first rotary cylinder, is used as the first support member, the configuration of the device Can be simplified.

The filament winding apparatus of the third invention is characterized in that, in the second invention, the first support member is rotatably supported by the frame member via a bearing.

In the present invention, it is possible to suppress power loss, heat generation, etc. due to friction, as compared with a configuration in which the first support member is supported without a bearing.

In any one of the first to third inventions, the filament winding device of the fourth invention is configured such that the plurality of nozzle units are detachably attached to the frame member, and the helical winding unit is the power transmission direction. The present invention further comprises a transmission member arranged between the first drive source and the first rotary cylinder, and the transmission member is arranged on the radial outer side of the first rotary cylinder. Is.

In a configuration in which the nozzle unit can be attached to and detached from the frame member, work of removing the nozzle unit from the frame member and work of moving the once removed nozzle unit to another position can be performed. Here, if the transmission member is arranged inside the first rotary cylinder in the radial direction, there is a possibility that the nozzle unit may be removed, or the degree of freedom in the arrangement of the nozzle unit may be reduced. In the present invention, since the transmission member is arranged on the radial outer side of the first rotary cylinder, it is possible to avoid the occurrence of these problems.

In any one of the first to fourth inventions, the filament winding apparatus of the fifth invention is configured such that the plurality of nozzle units are detachably attached to the frame member, and each first driven member is a nozzle unit. It is characterized by being contained in.

In the configuration in which the driven member is included in the nozzle unit, the number of driven members is reduced when the nozzle unit is removed from the frame member. Even with such a configuration, in the present invention, since the weight of the first rotary cylinder can be received by the first support member, it is possible to suppress the deflection of the first support member due to its own weight.

In the filament winding apparatus of the sixth invention, in any one of the first to fourth inventions, the plurality of nozzle units are configured to be detachably attached to the frame member, and each first driven member is the frame member. It is characterized by being attached to.

In the present invention, the number of first driven members does not decrease even when the nozzle unit is removed from the frame member. Therefore, the deflection of the first rotary cylinder can be effectively suppressed.

In the filament winding apparatus of the seventh invention, in any one of the first to sixth inventions, the first support member is the first driven member among the plurality of first driven members in the circumferential direction of the first rotary cylinder. It is characterized in that it is arranged between a plurality of the first driven members that are in contact with the inner peripheral surface of the first rotary cylinder from below.

In the present invention, the first support member is arranged so as to fill the space between the plurality of first driven members that support the first rotary cylinder. As a result, the first support member and the first driven member can be arranged in a well-balanced manner. Therefore, the first rotary cylinder can be stably supported.

In the filament winding apparatus of the eighth invention, in any one of the first to seventh inventions, the frame members are arranged side by side in the circumferential direction of the first rotary cylinder, and the first support member can be attached and detached. It is characterized by having a plurality of attached portions to be attached.

In the present invention, the number of first support members attached to the frame member can be adjusted. Therefore, by increasing the number of the first support members as needed, the weight of the first rotary cylinder can be received more reliably.

In the filament winding apparatus of the ninth invention, in any one of the first to eighth inventions, the helical winding unit is arranged on the other side of the frame member in the axial direction, and the liner is insertably provided. The second rotary cylinder, which is rotationally driven by the second drive source, and the inner peripheral surface of the second rotary cylinder are in contact with each other and driven to rotate, so that the other of the expansion and contraction operations and the rotational operations of each nozzle member is performed. A plurality of second driven members, which are provided separately from the plurality of second driven members and are attached to the frame member, and come into contact with the inner peripheral surface of the second rotary cylinder from below. It is characterized by including a second support member that rotatably supports the second rotary cylinder.

In the present invention, both the expansion and contraction operation and the rotation operation of the nozzle member can be performed while suppressing the deflection of the first rotary cylinder and the second rotary cylinder due to their own weight.

In the ninth aspect of the invention, the filament winding device of the tenth invention is such that the helical winding unit is attached to the frame member and extends in the axial direction, and the first support member is supported by one end portion in the axial direction. A common support member is provided at the other end in the axial direction in which the second support member is supported.

If a member that supports only the first support member or only the second support member is attached to the frame member, the load of only the first rotary cylinder or only the second rotary cylinder is biased with respect to the member. Therefore, the member may be easily tilted with respect to the frame member. In the present invention, the load of the first rotary cylinder is applied to one end of the common support member in the axial direction via the first support member, and the load of the second rotary cylinder is applied to the other end of the common support member via the second support member. Join. That is, the load can be applied to both sides of the common support member in the axial direction in a well-balanced manner. Therefore, it is possible to prevent the common support member from tilting.

It is a perspective view of the filament winding apparatus which concerns on this embodiment. It is a perspective view of a winding device. It is a block diagram which shows the electric structure of a winding device. It is a front view of a helical winding unit. It is a side view which saw the nozzle unit from the V direction of FIG. 4A. It is a side view which saw the nozzle unit from the VI direction of FIG. 4A. It is a front view of the upper part of a helical winding unit. FIG. 7 is a cross-sectional view taken along the line VIII-VIII of FIG. It is explanatory drawing which shows the removal of a nozzle unit and the attachment of a support member. It is a front view of the helical winding unit which concerns on a modification. It is sectional drawing of the helical winding unit which concerns on another modification. It is sectional drawing of the helical winding unit which concerns on still another modification. It is sectional drawing of the helical winding unit which concerns on still another modification. It is sectional drawing of the helical winding unit which concerns on still another modification. It is sectional drawing of the helical winding unit which concerns on still another modification.

Next, an embodiment of the present invention will be described. For convenience of explanation, the direction shown in FIG. 1 is the front-back and left-right directions. In addition, the direction orthogonal to the front-back and left-right directions is the vertical direction on which gravity acts.

(Filament winding device)
First, the schematic configuration of the filament winding apparatus 1 will be described with reference to FIG. FIG. 1 is a perspective view showing a filament winding device according to the present embodiment. The filament winding device 1 includes a winding device 2 and a pair of creel stands 3 arranged on both left and right sides of the rear portion of the winding device 2. The filament winding device 1 is configured to be substantially symmetrical as a whole. In addition, in FIG. 1, in order to avoid complicating the figure, the portion of the winding device 2 sandwiched between the pair of left and right creel stands 3 is not shown.

The winding device 2 is a device for winding a fiber bundle (not shown in FIG. 1) around a substantially cylindrical liner L. The fiber bundle is a fiber material such as carbon fiber impregnated with a thermosetting or thermoplastic synthetic resin material. For example, when a pressure vessel such as a pressure tank is manufactured by the winding device 2, the liner L has a shape as shown in FIG. 1 having a dome-shaped small diameter portion on both sides of a cylindrical large diameter portion. Used. The liner L is made of, for example, high-strength aluminum, metal, resin, or the like. After winding the fiber bundle around the liner L, a final product such as a high-strength pressure vessel can be produced by undergoing a heat curing step such as firing or a cooling step.

The creel stand 3 has a configuration in which a plurality of bobbins 12 around which a fiber bundle is wound are rotatably supported by a support frame 11 arranged on the side of the winding device 2. The fiber bundle supplied from each bobbin 12 of the creel stand 3 is used when performing helical winding by the helical winding unit 50 described later.

(Wrapping device)
Next, the configuration of the winding device 2 will be described with reference to FIGS. 2 and 3. FIG. 2 is a perspective view of the winding device 2. FIG. 3 is a block diagram showing an electrical configuration of the winding device 2. As shown in FIG. 2, the winding device 2 includes a base 20, a support unit 30 (first support unit 31 and second support unit 32), a hoop winding unit 40, and a helical winding unit 50. ..

The base 20 supports the support unit 30, the hoop winding unit 40, and the helical winding unit 50. A plurality of rails 21 extending in the front-rear direction are arranged on the upper surface of the base 20. The support unit 30 and the hoop winding unit 40 are arranged on the rail 21 and can reciprocate on the rail 21 in the front-rear direction. On the other hand, the helical winding unit 50 is fixed to the base 20. The first support unit 31, the hoop winding unit 40, the helical winding unit 50, and the second support unit 32 are arranged from the front side to the rear side in this order.

The support unit 30 has a first support unit 31 arranged on the front side of the hoop winding unit 40 and a second support unit 32 arranged on the rear side of the helical winding unit 50. The support unit 30 rotatably supports the liner L around the axis via a support shaft 33 extending in the axial direction (front-back direction) of the liner L. The support unit 30 has a moving motor 34 and a rotating motor 35 (see FIG. 3). The moving motor 34 moves the first support unit 31 and the second support unit 32 in the front-rear direction along the rail 21. The rotation motor 35 rotates the liner L around the axis by rotating the support shaft 33. The moving motor 34 and the rotary motor 35 are driven and controlled by the control device 10 (see FIG. 3).

The hoop winding unit 40 performs hoop winding on the peripheral surface of the liner L. The hoop winding is a winding method in which a fiber bundle is wound in a direction substantially perpendicular to the axial direction of the liner L. The hoop winding unit 40 has a main body 41, a rotating member 42, and a plurality of bobbins 43. The main body 41 is arranged on the rail 21 and rotatably supports the disk-shaped rotating member 42 around the axis of the liner L. A circular passing hole 44 through which the liner L can pass is formed in the central portion of the rotating member 42. The rotating member 42 rotatably supports a plurality of bobbins 43 arranged around the passing hole 44 at equal intervals in the circumferential direction. A fiber bundle is wound around each bobbin 43.

The hoop winding unit 40 has a moving motor 45 and a rotating motor 46 (see FIG. 3). The moving motor 45 moves the main body 41 in the front-rear direction along the rail 21. The rotation motor 46 rotates the rotating member 42 around the axis of the liner L. The moving motor 45 and the rotary motor 46 are driven and controlled by the control device 10 (see FIG. 3). At the time of executing the hoop winding, the control device 10 rotates the rotating member 42 while reciprocating the main body 41 along the rail 21. As a result, fiber bundles are pulled out from each bobbin 43 rotating around the liner L, and a plurality of fiber bundles are hoop-wound all at once on the peripheral surface of the liner L.

The helical winding unit 50 performs helical winding on the peripheral surface of the liner L. Helical winding is a winding method in which a fiber bundle is wound in a direction substantially parallel to the axial direction of the liner L. The helical winding unit 50 includes a main body portion 51, a frame member 52, and a plurality of (nine in this embodiment) nozzle units 53. The main body 51 is fixed to the base 20. The frame member 52 is a disk-shaped member attached to the main body 51. A circular passage hole 54 through which the liner L can pass in the front-rear direction is formed in the central portion of the frame member 52. In other words, the passage hole 54 has an axial direction in the front-rear direction parallel to the horizontal direction, and the liner L can be passed in the horizontal direction. The plurality of nozzle units 53 are arranged at equal angular intervals (in this embodiment, at 40 degree intervals) in the circumferential direction about the axis of the liner L, and are arranged radially as a whole. Each nozzle unit 53 is fixed to the frame member 52.

FIG. 4 is a front view of the helical winding unit 50. As shown in FIG. 4, the nozzle unit 53 has a guide body 65 (nozzle member of the present invention) that guides the fiber bundle F to the liner L. The guide body 65 extends in the radial direction (hereinafter, simply referred to as the radial direction) of the liner L, and is configured to be movable in the radial direction and rotatable around a rotation axis extending in the radial direction. A guide roller 55 is arranged on the radial outer side of the nozzle unit 53. The fiber bundle F drawn from each bobbin 12 of the creel stand 3 (see FIG. 1) passes through the guide body 65 via the guide roller 55 and reaches the liner L.

The helical winding unit 50 has a guide moving motor 56 (first drive source of the present invention) and a guide rotation motor 57 (second drive source of the present invention) (see FIG. 3). The guide moving motor 56 simultaneously moves the guide bodies 65 of the plurality of nozzle units 53 in the radial direction (details will be described later). The guide rotation motor 57 simultaneously rotates the guide bodies 65 of the plurality of nozzle units 53 around their respective rotation axes (details will be described later). The guide moving motor 56 and the guide rotation motor 57 are driven and controlled by the control device 10 (see FIG. 3). At the time of executing the helical winding, the control device 10 drives and controls the support unit 30 to slowly rotate the liner L around the axis and pass the liner L through the passing hole 54. At the same time, the control device 10 appropriately moves the guide body 65 of each nozzle unit 53 in the radial direction (to perform the expansion / contraction operation) and rotates the guide body 65 around the rotation axis (to perform the rotation operation). As a result, the fiber bundle F is pulled out from the guide body 65 of each nozzle unit 53, and the plurality of fiber bundles F are helically wound around the peripheral surface of the liner L all at once.

The radial movement control of the guide body 65 is performed so as to position the tip end portion of the guide body 65 in the vicinity of the peripheral surface of the liner L. FIG. 4A illustrates the winding of the fiber bundle F around the large diameter portion of the liner L. FIG. 4B illustrates the winding of the fiber bundle F around the small diameter portion of the liner L. In this way, when the fiber bundle F is wound around the small diameter portion of the liner L, the guide body 65 is moved inward in the radial direction as compared with the case where the fiber bundle F is wound around the large diameter portion. Further, the rotation control around the rotation axis of the guide body 65 is performed so as to pull out the fiber bundle F in an appropriate manner when the winding direction of the fiber bundle F with respect to the liner L changes.

(Nozzle unit)
The details of the nozzle unit 53 will be described. FIG. 5 is a side view of the nozzle unit 53 as viewed from the V direction of FIG. 4A. FIG. 6 is a side view of the nozzle unit 53 as viewed from the VI direction of FIG. 4A. 5 and 6 show a state in which the guide body 65 is located on the outermost side in the radial direction.

As shown in FIGS. 5 and 6, the nozzle unit 53 is fixed to the front surface of the frame member 52 by bolts 201, and is configured to be removable from the frame member 52. The nozzle unit 53 includes a support 60 fixed to the frame member 52 and a moving body 61 movably supported by the support 60 in the radial direction.

The support 60 has a fixing portion 62 and a supporting portion 63. The fixing portion 62 is a portion fixed to the frame member 52. The fixing portion 62 is arranged in line with the position of the screw hole 52a for the bolt 201 formed in the frame member 52, and is screwed to the front surface of the frame member 52 with the bolt 201. The support portion 63 extends radially. The support portion 63 is provided with a rail (not shown) that also extends in the radial direction. A moving body 61 is engaged with this rail, whereby the support portion 63 supports the moving body 61 so as to be movable in the radial direction. The support portion 63 is arranged in the front-rear direction on the outside of the end face of the moving ring gear 72, which will be described later, and on the outside of the end face of the rotating ring gear 82.

The moving body 61 has a main body 64 and a guide body 65. The main body 64 has a structure in which a tubular portion 66 and a supported portion 67 are integrally formed. The tubular portion 66 is configured in a cylindrical shape extending in the radial direction. The supported portion 67 extends radially outward from the tubular portion 66 and engages with a rail provided on the support portion 63.

The guide body 65 extends in the radial direction and can guide a plurality of fiber bundles F to the liner L. The portion of the fiber bundle F on the upstream side of the guide body 65 in the traveling direction (hereinafter, simply referred to as traveling direction) is rotatably supported by a bearing (not shown) provided inside the tubular portion 66. As a result, the guide body 65 can rotate around the rotation axis A extending in the radial direction. At the upstream end of the guide body 65 in the traveling direction, a fiber bundle introduction guide 68 for introducing a plurality of fiber bundles F into the guide body 65 is provided. The plurality of fiber bundles F introduced into the guide body 65 via the fiber bundle introduction guide 68 are drawn out from the downstream end (tip portion) of the guide body 65 in the traveling direction and wound around the peripheral surface of the liner L. ..

(Movement mechanism)
Next, a moving mechanism 70 for moving the moving body 61 in the radial direction (see FIG. 5) and a rotating mechanism 80 for rotating the guide body 65 around the rotation axis A (see FIG. 6) will be described.

First, the moving mechanism 70 will be described with reference to FIG. The moving mechanism 70 is a mechanism that transmits the power of the guide moving motor 56 to a plurality of moving bodies 61 to move each moving body 61 in the radial direction all at once. As shown in FIG. 5, the moving mechanism 70 has a drive gear 71, a moving ring gear 72, a driven gear 73, a drive shaft 74, and a pinion gear 75 in order from the upstream side in the power transmission direction of the guide moving motor 56. And has a rack gear 76. The driven gear 73 to the rack gear 76 are included in the nozzle unit 53. The driven gear 73, the drive shaft 74, and the pinion gear 75 are attached to the support 60. On the other hand, the rack gear 76 is attached to the moving body 61.

The drive gear 71 (transmission member of the present invention) is connected to, for example, the rotating shaft of the guide moving motor 56. The drive gear 71 is arranged between the guide movement motor 56 and the movement ring gear 72 in the power transmission direction of the guide movement motor 56, and is arranged outside the radial direction of the movement ring gear 72. The drive gear 71 meshes with the teeth formed on the outer peripheral surface 72a of the moving ring gear 72.

The moving ring gear 72 (the first rotary cylinder of the present invention) is a tubular member. A plurality of teeth are formed on the outer peripheral surface 72a and the inner peripheral surface 72b of the moving ring gear 72, respectively. The moving ring gear 72 is rotatably fitted in a portion on the rear side (one side in the axial direction of the present invention) of the frame member 52 via, for example, a sliding member 58 made of polyacetal (POM). There is. The moving ring gear 72 is provided so that the liner L can be inserted through the ring gear 72. More specifically, the moving ring gear 72 is provided coaxially with the passing hole 54, and the liner L can pass through the space inside the moving ring gear 72 in the radial direction. The drive gear 71 meshes with the teeth formed on the outer peripheral surface 72a of the moving ring gear 72. Further, the driven gear 73 meshes with the teeth formed on the inner peripheral surface 72b.

The driven gear 73 (the first driven member of the present invention) is fixed to the rear end portion of the drive shaft 74 and meshes with the teeth formed on the inner peripheral surface 72b of the moving ring gear 72. The pinion gear 75 is fixed to the front end portion of the drive shaft 74 and meshes with the rack gear 76. As a result, the driven gear 73 and the pinion gear 75 rotate integrally. The rack gear 76 is fixed to the supported portion 67 of the moving body 61 and extends in the radial direction.

When the moving ring gear 72 is rotated by the guide moving motor 56, the pinion gear 75 is rotated by the rotation of the driven gear 73 as shown by the arrow in FIG. Then, the rotation operation of the pinion gear 75 is converted into a radial movement operation (expansion / contraction operation) of the moving body 61 by the rack and pinion mechanism including the pinion gear 75 and the rack gear 76. In this way, the moving body 61 of each nozzle unit 53 can be moved in the radial direction all at once by the moving mechanism 70. In the present embodiment, the expansion / contraction operation corresponds to "one of the expansion / contraction operation and the rotation operation" of the present invention.

A plurality of through holes 52b penetrating the liner L in the axial direction are formed on the peripheral edge of the frame member 52. Therefore, when the nozzle unit 53 is attached, the driven gear 73 can be meshed with the moving ring gear 72 by passing the driven gear 73 from the front side to the rear side of the through hole 52b.

Here, some of the driven gears 73 included in the plurality of nozzle units 53 are in contact with the inner peripheral surface of the moving ring gear 72 from below, and the moving ring gears 73 are in contact with each other from below. The upper part of 72 is supported from below. By receiving the weight of the moving ring gear 72, such a driven gear 73 can suppress the deflection of the moving ring gear 72 due to its own weight.

(Rotation mechanism)
Next, the rotation mechanism 80 will be described with reference to FIG. The rotation mechanism 80 is a mechanism that transmits the power of the guide rotation motor 57 to a plurality of guide bodies 65 to rotate each guide body 65 all at once around each rotation axis (see rotation axis A in FIG. 6). .. As shown in FIG. 6, the rotation mechanism 80 has a drive gear 81, a rotation ring gear 82, a driven gear 83, a drive shaft 84, and a first bevel gear in order from the upstream side in the power transmission direction of the guide rotation motor 57. It has 85, a second bevel gear 86, a guide shaft 87, an intermediate gear 88, and a rotary gear 89. The driven gear 83, the drive shaft 84, the first bevel gear 85, and the second bevel gear 86 are attached to the support 60. On the other hand, the guide shaft 87, the intermediate gear 88, and the rotary gear 89 are attached to the moving body 61.

The drive gear 81 is connected to, for example, the rotation shaft of the guide rotation motor 57. The drive gear 81 is arranged between the guide rotation motor 57 and the rotation ring gear 82 in the power transmission direction of the guide rotation motor 57, and is arranged outside the radial direction of the rotation ring gear 82. The drive gear 81 meshes with the teeth formed on the outer peripheral surface 82a of the rotary ring gear 82.

The rotary ring gear 82 (second rotary cylinder of the present invention) is a tubular member similar to the moving ring gear 72. A plurality of teeth are formed on the outer peripheral surface 82a and the inner peripheral surface 82b of the rotary ring gear 82, respectively. The rotary ring gear 82 is provided so that the liner L can be inserted through the ring gear 82. That is, the rotating ring gear 82 is also provided coaxially with the passing hole 54, and the liner L can pass through the space inside the radial direction of the rotating ring gear 82. The rotary ring gear 82 is rotatably fitted in a portion on the front side (the other side in the axial direction of the present invention) of the frame member 52 via, for example, a sliding member 59 formed of POM. The drive gear 81 meshes with the teeth formed on the outer peripheral surface 82a of the rotary ring gear 82. Further, the driven gear 83 meshes with the teeth formed on the inner peripheral surface 82b.

The driven gear 83 (the second driven member of the present invention) is fixed to the rear end portion of the drive shaft 84 and meshes with the teeth formed on the inner peripheral surface 82b of the rotating ring gear 82. The driven gear 83 is arranged at a position different from that of the driven gear 73 described above in the circumferential direction of the liner L. The first bevel gear 85 is fixed to the front end portion of the drive shaft 84 and meshes with the second bevel gear 86. As a result, the driven gear 83 and the first bevel gear 85 rotate integrally. The guide shaft 87 is composed of a spline shaft or a prism extending in the radial direction, and can transmit torque. The guide shaft 87 is rotatably attached to the supported portion 67 of the moving body 61 around the shaft. The guide shaft 87 is inserted through a through hole formed in the central portion of the second bevel gear 86. The guide shaft 87 inserted through the through hole rotates integrally with the second bevel gear 86, but can move relative to the second bevel gear 86 in the radial direction. An intermediate gear 88 is fixed to the radially inner end of the guide shaft 87. A rotation gear 89 fixed to the guide body 65 meshes with the intermediate gear 88. The rotary gear 89 is a gear coaxial with the rotary shaft A of the guide body 65.

When the rotation ring gear 82 is rotated by the guide rotation motor 57, the first bevel gear 85 is rotated by the rotation of the driven gear 83, and the second bevel gear 86 is further rotated, as shown by the arrow in FIG. Then, the rotational operation of the second bevel gear 86 is transmitted to the intermediate gear 88 via the guide shaft 87, and the rotary gear 89 further rotates around the rotary shaft A. As a result, the guide body 65 rotates around the rotation axis A. In this way, the rotation mechanism 80 can rotate the guide body 65 of each nozzle unit 53 all at once (rotational operation). When the moving body 61 moves in the radial direction, the guide shaft 87 moves through the through hole of the second bevel gear 86, so that the movement of the moving body 61 is not hindered. In the present embodiment, the rotational movement corresponds to "the other of the expansion and contraction movement and the rotational movement" of the present invention.

Here, some of the driven gears 83 included in the plurality of nozzle units 53 are in contact with the inner peripheral surface of the rotating ring gear 82 from below, and the rotating ring gears are in contact with each other from below. The upper portion of 82 is supported from below. By receiving the weight of the rotating ring gear 82, such a driven gear 83 can suppress the deflection of the rotating ring gear 82 due to its own weight.

As described above, some of the driven gears 73 receive the weight of the moving ring gear 72, and some of the driven gears 83 receive the weight of the rotating ring gear 82. Here, since the optimum number of fiber bundles helically wound at one time can change depending on the diameter of the liner L and the like, for example, the number of nozzle units 53 attached to the frame member 52 may be reduced. .. Alternatively, if the number of fiber bundles F that can be guided by each nozzle unit 53 increases, the number of nozzle units 53 attached to the frame member 52 may decrease. In such a case, when the number of the nozzle units 53 is reduced, the number of the driven gear 73 and the driven gear 83 is also reduced, so that the number of members that receive the weights of the moving ring gear 72 and the rotating ring gear 82 is reduced, and the movement is performed. The upper portion of the ring gear 72 for rotation and the ring gear 82 for rotation may be easily bent due to its own weight. Therefore, the helical winding unit 50 has the following configuration in order to suppress the deflection of the moving ring gear 72 and the rotating ring gear 82 due to their own weight.

(Configuration for suppressing deflection of the ring gear)
The configuration for suppressing the deflection of the moving ring gear 72 and the rotating ring gear 82 will be described with reference to FIGS. 7 and 8. FIG. 7 is a front view of the upper portion of the helical winding unit 50. FIG. 8 is a cross-sectional view taken along the line VIII-VIII of FIG.

As shown in FIG. 7, the helical winding unit 50 has a plurality of support portions 90 provided separately from the nozzle unit 53 (that is, separate from the driven gear 73 and the driven gear 83). The support portion 90 rotatably supports the moving ring gear 72 and the rotating ring gear 82. As shown in FIG. 8, the support portion 90 includes a rotary shaft member 91, a support member 92, and a support member 93. The support portion 90 receives the weight of the moving ring gear 72 by the support member 92 rotatably attached to the rear end portion of the rotary shaft member 91, and the support member rotatably attached to the front end portion of the rotary shaft member 91. The weight of the rotating ring gear 82 is received by 93.

The rotary shaft member 91 (common support member of the present invention) is detachably attached to the attached portion 94 formed on the frame member 52. In the present embodiment, the mounted portion 94 refers to a portion of the frame member 52 in which a through hole 94a penetrating in the front-rear direction and a screw hole 94b for screwing the rotary shaft member 91 are formed. It is not limited to this. A plurality of mounted portions 94 are arranged side by side in the circumferential direction of the passing hole 54 (that is, the circumferential direction of the moving ring gear 72 and the rotating ring gear 82). The rotary shaft member 91 is inserted through the through hole 94a and is screwed by a bolt 202. The diameter of the through hole 94a is substantially equal to the diameter of the through hole 52b (see FIG. 5) for inserting the driven gear 73 of the nozzle unit 53. Further, the frame member 52 is also formed with a screw hole 94b in the vicinity of the through hole 52b (see FIG. 5). In other words, the attached portion 94 is also formed in the portion of the frame member 52 to which the nozzle unit 53 is attached (see FIG. 5).

The support member 92 (first support member of the present invention) is, for example, a gear member having a shape similar to that of the driven gear 73. As shown in FIG. 8, the support member 92 is attached to the rear end portion (one end portion in the axial direction of the present invention) of the rotary shaft member 91 described above, and is rotatably supported via the bearing 95. The support member 92 comes into contact with the inner peripheral surface of the moving ring gear 72 from below to rotatably support the moving ring gear 72. The support member 92 is driven to rotate with the rotation of the moving ring gear 72. The support member 92 is arranged between a plurality of nozzle units 53 attached to the upper portion of the frame member 52 in the circumferential direction of the moving ring gear 72 (see FIG. 7). In other words, the support member 92 is arranged between the plurality of driven gears 73 that are in contact with the inner peripheral surface of the moving ring gear 72 from below among the plurality of driven gears 73 in the circumferential direction of the moving ring gear 72. Has been done. In this embodiment, two support members 92 are provided. The weight of the moving ring gear 72 is received by the support member 92 as described above.

The support member 93 (second support member of the present invention) is a gear member having a shape similar to that of the driven gear 83. The support member 93 is attached to the front end portion (the other end portion in the axial direction of the present invention) of the rotary shaft member 91, and is rotatably supported via the bearing 96 (see FIG. 8). The support member 93 comes into contact with the inner peripheral surface of the rotary ring gear 82 from below to rotatably support the rotary ring gear 82. The support member 93 is driven to rotate with the rotation of the rotation ring gear 82. The support member 93 is arranged between the plurality of driven gears 83 that are in contact with the inner peripheral surface of the rotating ring gear 82 from below in the circumferential direction of the rotating ring gear 82. .. In this embodiment, two support members 93 are provided. The weight of the rotating ring gear 82 is received by the support member 93 as described above.

The support members 92 and 93 are attached to the rotary shaft member 91 and arranged coaxially. As described above, the support member 92 is attached to the rear end portion of the rotary shaft member 91, and the support member 93 is attached to the front end portion of the rotary shaft member 91. That is, the support member 92 and the support member 93 are arranged on opposite sides of the frame member 52 in the axial direction of the rotary shaft member 91. As a result, the loads of the moving ring gear 72 and the rotating ring gear 82 are applied to both side portions of the rotating shaft member 91 in the axial direction in a well-balanced manner.

(Removal of nozzle unit and installation of support)
An example of the work of removing the nozzle unit 53 and the work of attaching the support portion 90 will be described with reference to FIG. FIG. 9A is a diagram showing a state of the helical winding unit 50 after one of the plurality of nozzle units 53 has been removed. 9 (b) is a diagram showing a state in which the support portion 90 is additionally attached to the frame member 52 with respect to the helical winding unit 50 shown in FIG. 9 (a).

First, the operator removes the bolt 201 (see FIG. 5) fixing the nozzle unit 53 to the frame member 52, and moves the nozzle unit 53 forward to remove it. In this embodiment, the nozzle unit 53 described on the right side of the paper surface of FIG. 9A is removed. Since the nozzle unit 53 includes the driven gear 73 and the driven gear 83, when one nozzle unit 53 is removed, the driven gear 73 and the driven gear 83 are also removed one by one. Further, nothing is inserted into the through hole 52b after the nozzle unit 53 is removed (see the right side portion of the paper surface in FIG. 9A). Even in such a state, the support member 92 is in contact with the inner peripheral surface of the moving ring gear 72 from below, and the support member 93 is in contact with the inner peripheral surface of the rotating ring gear 82 from below. As a result, the weight of the moving ring gear 72 is received by the support member 92, and the weight of the rotating ring gear 82 is received by the support member 93.

Next, the operator inserts the rotary shaft member 91 (see FIG. 8) into the through hole 52b in which nothing is inserted, and screws the rotary shaft member 91 (see FIG. 8) with a bolt 202 (see FIG. 8). Further, the operator attaches the support member 92 to the rear end portion of the rotary shaft member 91, and attaches the support member 93 to the front end portion. As a result, the moving ring gear 72 and the rotating ring gear 82 can be supported by the support members 92 and 93 attached instead of the nozzle unit 53 (see the right side portion of the paper in FIG. 9B).

Here, as described above, the drive gear 71 is arranged on the radial outer side of the moving ring gear 72, and the drive gear 81 is arranged on the radial outer side of the rotating ring gear 82 (FIG. 5, FIG. 6). Therefore, as compared with the case where the drive gears 71 and 81 are arranged radially inside the moving ring gear 72 and the rotating ring gear 82, the drive gears 71 and 81 hinder the removal work of the nozzle unit 53 and the like. Is suppressed.

As described above, the moving ring gear 72 can also be supported by the support member 92 different from the driven gear 73. Thereby, even when the number of the driven gears 73 supporting the moving ring gear 72 is small, the weight of the moving ring gear 72 can be received. Therefore, it is possible to suppress the deflection of the moving ring gear 72 due to its own weight.

Further, since both the driven gear 73 and the support member 92 are rotating members, the same type of member can be applied to the driven gear 73 and the support member 92. Therefore, the configuration of the device can be simplified.

Further, the support member 92 is rotatably supported via the bearing 95. Therefore, as compared with the configuration in which the support member 93 is supported without a bearing, it is possible to suppress power loss, heat generation, and the like due to friction.

Further, the drive gear 71 is arranged on the outer side in the radial direction of the moving ring gear 72. Therefore, it is possible to prevent the drive gear 71 from hindering the removal work of the nozzle unit 53 and the like.

Further, the driven gear 73 is included in the nozzle unit 53. In such a configuration, the number of driven gears 73 is reduced when the nozzle unit 53 is removed from the frame member 52. Even with such a configuration, in the present invention, since the weight of the moving ring gear 72 can be received by the support member 92, the deflection of the moving ring gear 72 due to its own weight can be suppressed.

Further, the support member 92 is arranged so as to fill the space between the plurality of driven gears 73 that support the moving ring gear 72. As a result, the support member 92 and the driven gear 73 can be arranged in a well-balanced manner. Therefore, the moving ring gear 72 can be stably supported.

Further, the frame member 52 has a plurality of attached portions 94. This makes it possible to adjust the number of support members 92 attached to the frame member 52. Therefore, by increasing the number of the support members 92 as needed, the weight of the moving ring gear 72 can be received more reliably.

Further, the helical winding unit 50 further includes a rotating ring gear 82 and a support member 93 that comes into contact with the inner peripheral surface of the rotating ring gear 82 from below. As a result, both the expansion and contraction operation and the rotation operation of the guide body 65 can be performed while suppressing the deflection of the moving ring gear 72 and the rotating ring gear 82 due to their own weight.

Further, the support member 92 is supported by the rear end portion of the rotary shaft member 91, and the support member 93 is supported by the front end portion of the rotary shaft member 91. As a result, the load of the moving ring gear 72 is applied to the rear end portion of the rotating shaft member 91 via the support member 92, and the load of the rotating ring gear 82 is applied to the front end portion via the support member 93. That is, the load can be applied to both sides of the rotary shaft member 91 in the axial direction in a well-balanced manner. Therefore, it is possible to prevent the rotary shaft member 91 from tilting.

Next, a modified example in which the embodiment is modified will be described. However, those having the same configuration as that of the above-described embodiment are designated by the same reference numerals and the description thereof will be omitted as appropriate.

(1) In the above embodiment, nine nozzle units 53 are attached to the frame member 52, but the present invention is not limited to this. For example, as shown in FIG. 10A, the three nozzle units 53 may be arranged at equal angular intervals in the circumferential direction of the liner L. In such a configuration, the upper portion of the moving ring gear 72 and the upper portion of the rotating ring gear 82 are rotatably supported by four support members 92 and 93, respectively, as shown in FIG. 10 (a). It may have been done. The number of support members 92 and 93 is not limited to this. Further, in the above embodiment, nine nozzle units 53 are arranged at intervals of 40 degrees in the circumferential direction of the liner L, but the present invention is not limited to this. For example, as shown in FIG. 10B, eight nozzle units 53 may be arranged at intervals of 45 degrees in the circumferential direction of the liner L. That is, screw holes 52a and through holes 52b may be further formed in the frame member 52 at intervals of 45 degrees in the circumferential direction of the liner L (see FIG. 10A). The nozzle units 53 do not necessarily have to be arranged over the entire circumference, and may not necessarily be arranged at equal angular intervals.

(2) In the above-described embodiment, both the support members 92 and 93 are rotatably supported by the rotary shaft member 91, but the present invention is not limited to this. That is, one support member may be attached to each of the two rotating shaft members. For example, as shown in FIG. 11, in the helical winding unit 50a, a cylindrical fixing member 101 may be fixed to the frame member 52 instead of the rotating shaft member 91. The rotary shaft member 102 may be rotatably attached to the rear portion of the fixing member 101, and the rotary shaft member 103 may be rotatably attached to the front portion. In this modification, the rotary shaft member 102 is rotatably supported by the fixing member 101 via the bearing 104. The rotary shaft member 103 is rotatably supported by the fixing member 101 via a bearing 105. Further, the support member 106 is attached to the rotary shaft member 102, and the support member 107 is attached to the rotary shaft member 103.

(3) In the above-described embodiments, the support members 92 and 93 are arranged coaxially, but the present invention is not limited to this. For example, in the circumferential direction of the liner L, the arrangement position of the support member 92 and the arrangement position of the support member 93 may be different from each other. In other words, the support member 92 and the support member 93 may be rotatably attached to separate rotary shaft members.

(4) In the above-described embodiment, the driven gear 73 that meshes with the moving ring gear 72 and the driven gear 83 that meshes with the rotating ring gear 82 are included in the nozzle unit 53. Is not limited. That is, the driven gears 73 and 83 may be attached to the frame member 52. For example, as shown in FIG. 12A, the driven gear 73 of the frame member 52 may be attached to the moving mechanism 70b of the helical winding unit 50b, and the drive shaft 111 may be fixed to the driven gear 73. In the nozzle unit 53b, the transmission shaft 112 for torque transmission may be fixed to the pinion gear 75. The drive shaft 111 and the transmission shaft 112 may be integrally rotatably connected by a coupling 113. Further, as shown in FIG. 12B, in the rotation mechanism 80b, the driven gear 83 may be attached to the frame member 52, and the drive shaft 121 may be fixed to the driven gear 83. In the nozzle unit 53b, the transmission shaft 122 for torque transmission may be fixed to the first bevel gear 85. The drive shaft 121 and the transmission shaft 122 may be integrally rotatably connected by a coupling 123. In such a configuration, even if the nozzle unit 53b is removed from the frame member 52, the number of driven gears 73 and 83 does not decrease. Therefore, the deflection of the moving ring gear 72 and the rotating ring gear 82 can be effectively suppressed.

(5) In the modified example of (4) above, as shown in FIG. 12 (b), the arrangement position of the driven gear 73 and the arrangement position of the driven gear 83 are different in the circumferential direction of the liner L. , Not limited to this. That is, the driven gear 73 and the driven gear 83 may be configured to be arranged coaxially. Hereinafter, it will be described with reference to FIG. For example, in the helical winding unit 50c, a through hole 132 is formed in the frame member 131. A rotary shaft member 133 is inserted through the through hole 132 and is fixed to the frame member 131. A driven gear 73 of the moving mechanism 70c is rotatably attached to the rear end portion of the rotating shaft member 133. A driven gear 83 of the rotation mechanism 80c is rotatably attached to the front end portion of the rotation shaft member 133. Further, in the frame member 131, for example, another through hole 134 is formed radially inside the through hole 132. The drive shaft 74 of the nozzle unit 53c is inserted through the through hole 134. An intermediate gear 135 is fixed to the rear end of the drive shaft 74. The intermediate gear 135 meshes with the driven gear 73. As a result, when the driven gear 73 rotates with the rotation of the moving ring gear 72, the power of the guide moving motor 56 (see FIG. 3) is transmitted to the drive shaft 74 via the intermediate gear 135. Similarly, an intermediate gear 136 is fixed to the rear end of the drive shaft 84. The intermediate gear 136 meshes with the driven gear 83. As a result, when the driven gear 83 rotates with the rotation of the rotating ring gear 82, the power of the guide rotation motor 57 (see FIG. 3) is transmitted to the drive shaft 84 via the intermediate gear 136.

(6) As a further modification of the modification of the above (5), as shown in FIG. 14, the helical winding unit 50c1 may have the following configuration. That is, the nozzle unit 53c1 may have the transmission shaft 122 described in the modification of (4) above instead of the intermediate gear 136 and the drive shaft 84. That is, the transmission shaft 122 may be used in the rotation mechanism 80c1. Further, in the rotation mechanism 80c1, the drive shaft 142 may be fixed to the front surface of the rotation shaft member 141. The drive shaft 142 and the transmission shaft 122 may be integrally rotatably connected via a coupling 123.

(7) In the above-described embodiment, a plurality of teeth are formed on the inner peripheral surface of the moving ring gear 72, and the support member 92 meshes with the plurality of teeth of the moving ring gear 72. Not limited. For example, instead of the moving ring gear 72, a moving ring member having no teeth formed on the inner peripheral surface may be provided. Instead of the support member 92, a roller-shaped support member (not shown) may be provided. Similarly, a driven roller (not shown) may be provided instead of the driven gear 73. The same applies to the rotary ring gear 82, the support member 93, and the driven gear 83.

(8) In the above-described embodiments, the support members 92 and 93 are assumed to be rotating members, but the present invention is not limited to this. For example, as shown in FIG. 15, in the helical winding unit 50d, the support members 151 and 152 are fixed to the frame member 52 and slidable with respect to the moving ring gear 153 and the rotating ring gear 154, respectively. There may be. Hereinafter, a specific description will be given. The inner peripheral surface 153a of the moving ring gear 153 has a rear side portion 153b in which a plurality of teeth are formed and a front side portion 153c in which the teeth are not formed. The driven gear 73 (not shown in FIG. 15) is arranged so as to mesh with the rear portion 153b. The support member 151 is a sliding member that can slide with respect to the moving ring gear 153. The support member 151 is non-rotatably attached to the rear end portion of the fixing member 155 fixed to the frame member 52, and is in contact with the front side portion 153c of the inner peripheral surface 153a of the moving ring gear 153 from below. As a result, the driven gear 73 can be driven to rotate by the rotation of the moving ring gear 153, and the weight of the moving ring gear 153 can be received by the support member 151. Similarly, the inner peripheral surface 154a of the rotating ring gear 154 has a front side portion 154b in which a plurality of teeth are formed and a rear side portion 154c in which the teeth are not formed. The support member 152 is non-rotatably attached to the front end portion of the fixing member 155, and is in contact with the rear portion 154c of the inner peripheral surface 154a of the rotating ring gear 154 from below.

(9) In the above embodiments, the nozzle unit 53 is removable from the frame member 52, but the present invention is not limited to this. The nozzle unit does not necessarily have to be configured to be removable.

(10) In the above-described embodiments, the support members 92 and 93 are detachably attached to the attached portion 94 of the frame member 52, but the present invention is not limited to this. That is, the support members 92 and 93 do not necessarily have to be removable.

(11) In the above-described embodiment, the passing hole 44 is formed so that the liner L can pass through in the horizontal direction, but the present invention is not limited to this. That is, the axial direction of the passing hole 44 may have an inclination with respect to the horizontal direction.

(12) In the above-described embodiment, the nozzle unit 53 has both a moving mechanism 70 and a rotating mechanism 80, but the nozzle unit 53 is not limited to this. That is, the nozzle unit may have only one of the moving mechanism 70 and the rotating mechanism 80. When the nozzle unit has only the rotation mechanism 80, the rotation ring gear 82 corresponds to the first rotary cylinder of the present invention. The guide rotation motor 57 corresponds to the first drive source of the present invention. The driven gear 83 corresponds to the first driven member of the present invention. The support member 93 corresponds to the first support member of the present invention. The drive gear 81 corresponds to the transmission member of the present invention. The rotational motion corresponds to "one of the expansion and contraction motion and the rotary motion" of the present invention.

1 Filament winding device 50 Helical winding unit 52 Frame member 53 Nozzle unit 54 Passing hole 56 Guide movement motor (first drive source)
57 Guide rotation motor (second drive source)
65 Guide body (nozzle member)
71 Drive gear (transmission member)
72 Moving ring gear (1st rotary cylinder)
72b Inner peripheral surface 73 Driven gear (1st driven member)
82 Rotating ring gear (second rotating cylinder)
82b Inner peripheral surface 83 Driven gear (second driven member)
91 Rotating shaft member (common support member)
92 Support member (first support member)
93 Support member (second support member)
94 Attached part 95 Bearing F Fiber bundle L Liner

Claims (10)

A filament winding device equipped with a helical winding unit that helically winds a fiber bundle on a liner.
The helical winding unit is
A frame member having a passage hole through which the liner can pass at least in the horizontal direction, and a frame member.
A first rotary cylinder, which is arranged on one side of the frame member in the axial direction of the passage hole and is provided so that the liner can be inserted, and is rotationally driven by the first drive source.
Each of the nozzle members for guiding the fiber bundle to the liner is attached to the frame member and arranged on the downstream side of the first rotary cylinder in the power transmission direction of the first drive source. A plurality of nozzle units that perform one of the expansion and contraction operation and the rotation operation of the nozzle member by power, and
A plurality of first driven members that cause each nozzle unit to perform one of the expansion / contraction operation and the rotation operation of each nozzle member by contacting and rotating each of the inner peripheral surfaces of the first rotary cylinder.
A first support that is provided separately from the plurality of first driven members and is attached to the frame member, and is in contact with the inner peripheral surface of the first rotary cylinder from below to rotatably support the first rotary cylinder. A filament winding device comprising a member. The filament according to claim 1, wherein the first support member is a rotary member that is rotatably supported by the frame member and that is driven to rotate in contact with the inner peripheral surface of the first rotary cylinder. Winding device. The filament winding device according to claim 2, wherein the first support member is rotatably supported by the frame member via a bearing. The plurality of nozzle units are configured to be detachably attached to the frame member.
The helical winding unit further includes a transmission member arranged between the first drive source and the first rotary cylinder in the power transmission direction.
The filament winding device according to any one of claims 1 to 3, wherein the transmission member is arranged radially outside the first rotary cylinder. The plurality of nozzle units are configured to be detachably attached to the frame member.
The filament winding device according to any one of claims 1 to 4, wherein each first driven member is included in each nozzle unit. The plurality of nozzle units are configured to be detachably attached to the frame member.
The filament winding device according to any one of claims 1 to 4, wherein each first driven member is attached to the frame member. The first support member is
In the circumferential direction of the first rotary cylinder
Claims 1 to 6, wherein the first driven member is arranged between the plurality of first driven members that are in contact with the inner peripheral surface of the first rotary cylinder from below. The filament winding device according to any one. The frame member is
The filament winding apparatus according to any one of claims 1 to 7, wherein the first support member is arranged side by side in the circumferential direction of the first rotary cylinder and has a plurality of attached portions to which the first support member is detachably attached. .. The helical winding unit is
A second rotary cylinder, which is arranged on the other side of the frame member in the axial direction and is provided so as to be able to insert the liner, and is rotationally driven by the second drive source.
A plurality of second driven members that cause each nozzle unit to perform the other of the expansion / contraction operation and the rotational operation of each nozzle member by contacting and rotating the inner peripheral surface of the second rotary cylinder.
A second support that is provided separately from the plurality of second driven members and is attached to the frame member, and is in contact with the inner peripheral surface of the second rotary cylinder from below to rotatably support the second rotary cylinder. The filament winding apparatus according to any one of claims 1 to 8, further comprising a member. The helical winding unit is
A common support member that is attached to the frame member and extends in the axial direction, the first support member is supported at one end in the axial direction, and the second support member is supported at the other end in the axial direction. 9. The filament winding apparatus according to claim 9.

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