JP2015085640A - Filament winding apparatus - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a filament winding apparatus that can wind a fiber in a mesh shape on the outer peripheral surface of a liner.SOLUTION: Provided is a filament winding apparatus 100 in which, while by moving a liner 1 in an axial direction X, by rotating a first feed 30 and a second feed 40 in a circumferential direction B of the liner 1, a first fiber F1 fed from the first feed 30 is wound around the outer peripheral surface 2 of the liner 1 so as to be inclined in a first direction with respect to the axis A of the liner 1 as well as a second fiber F2 fed from the second feed 40 is wound around the outer peripheral surface 2 of liner 1 so as to be inclined in a second direction with respect to the axis A of liner 1, to form a cylindrical net structure Z1-Z4 in which the wound first fiber F1 and second fiber F2 crossover each other as well as there exists an opening W1-W4 surrounded by the wound first fiber F1 and second fiber F2.

Description

  The present invention relates to a filament winding apparatus.

Conventionally, the technique of the filament winding apparatus which winds a fiber around the outer peripheral surface of a liner is well-known (for example, patent document 1).
The conventional filament winding apparatus winds the fiber around the outer peripheral surface of the liner in the same direction, and winds the fiber without any gap.
However, from the viewpoint of design and the like, there is a demand for winding the fiber differently from the conventional one when winding the fiber around the outer peripheral surface of the liner. For example, there is a desire to wind a fiber in a mesh shape.

JP 2010-23481 A

  The present invention provides a filament winding apparatus capable of winding a fiber around a peripheral surface of a liner in a mesh shape.

The first invention is
A filament winding device for winding fibers around an outer peripheral surface of a liner,
A first supply unit for supplying a first fiber to the outer periphery of the liner;
A second supply section for supplying second fibers to the outer periphery of the liner;
With
While the liner is moved relative to the first supply unit and the second supply unit in the axial direction of the liner, the first supply unit and the second supply unit are moved in the circumferential direction of the liner with respect to the liner. The first fiber supplied from the first supply unit is wound around the outer peripheral surface of the liner so as to be inclined in the first direction with respect to the axis of the liner, and the second supply unit. The second fiber supplied from the outer periphery of the liner is wound around the outer circumferential surface of the liner so as to be inclined in a second direction that is opposite to the first direction with respect to the axis of the liner. A cylindrical net structure is formed which includes the first fiber and the second fiber wound around an outer peripheral surface and has a gap surrounded by the first fiber and the second fiber.

In the second invention,
The first fiber and the second fiber are wound around the outer peripheral surface of the liner so that the pitch of the first fiber is uniform and the pitch of the second fiber is uniform.

In the third invention,
A third supply part for supplying third fibers to the outer periphery of the liner;
The third fiber is wound in parallel, perpendicularly or spirally to the liner axis so as to pass through the intersection of the first fiber and the second fiber wound around the outer peripheral surface of the liner.

In the fourth invention,
The third supply unit is provided with a plurality of fiber supply ports juxtaposed in the circumferential direction of the liner,
The third fiber is pulled out from each fiber supply port by moving the non-rotating liner relative to the fiber supply port in the axial direction of the liner while the fiber supply port is stationary. Wrap parallel to the liner axis.

In the fifth invention,
The third supply unit is provided with a plurality of fiber supply ports juxtaposed in the axial direction of the liner,
The plurality of fiber supply ports are rotated in the circumferential direction of the liner with respect to the liner stationary in the axial direction while being stationary in the axial direction of the liner. The three fibers are drawn from each and wound perpendicular to the liner axis.

In the sixth invention,
A slit extending in the axial direction of the liner is formed on the outer peripheral surface of the liner,
A plurality of the third fibers are fixed to the liner by adsorbing the third fibers drawn from the plurality of fiber supply ports to the slit.

In the seventh invention,
The third supply unit is rotated relative to the liner in the circumferential direction of the liner while moving the third supply unit relative to the liner in the axial direction of the liner. The third fiber supplied from is wound spirally around the outer peripheral surface of the liner.

  As effects of the present invention, the following effects can be obtained.

  According to the first invention, the first fiber is wound around the outer peripheral surface of the liner so as to be inclined in the first direction, and the second fiber is wound so as to be inclined in the second direction. Thus, a gap (mesh) surrounded by the first fiber and the second fiber can be formed. Accordingly, the first fiber and the second fiber can be wound around the outer peripheral surface of the liner in a mesh shape.

According to the second invention, since the pitch of the first fiber and the pitch of the second fiber in the cylindrical network structure are equal, each gap surrounded by the first fiber and the second fiber in the cylindrical network structure. The shapes can be made the same, and the design can be improved.
Further, since the pitch of the first fiber and the pitch of the second fiber are equalized, the strength of the liner can be stably improved.

  According to 3rd invention, the clearance gap (mesh) enclosed by the 1st fiber, the 2nd fiber, and the 3rd fiber is wound by winding the 3rd fiber so that the intersection part of the 1st fiber and the 2nd fiber may pass. It is formed. Accordingly, the first fiber, the second fiber, and the third fiber can be wound around the outer peripheral surface of the liner in a mesh shape.

  According to the fourth invention, the first fiber, the second fiber, and the third fiber can be wound around the outer peripheral surface of the liner in a mesh shape.

  According to the fifth aspect, the first fiber, the second fiber, and the third fiber can be wound around the outer peripheral surface of the liner in a mesh shape.

  According to the sixth invention, it is possible to smoothly start the work of winding the plurality of third fibers around the outer peripheral surface of the liner.

  According to the seventh aspect, the first fiber, the second fiber, and the third fiber can be wound around the outer peripheral surface of the liner in a mesh shape.

The schematic block diagram of the filament winding apparatus of 1st embodiment. The front view of a 1st supply part. The front view of a 2nd supply part. Control block diagram. (A) The figure which looked at the liner which wound the 1st fiber and the 2nd fiber from the direction perpendicular to the axis of a liner, (b) The liner which wound the 1st fiber from the direction perpendicular to the axis of a liner The figure seen, (c) The figure which looked at the liner in which the 2nd fiber was wound from the direction perpendicular | vertical to the axis | shaft of a liner. (A) The figure which shows the straight line which passes along the cross | intersection part of a 1st cylinder network structure, (b) The figure which expand | deployed the outer peripheral surface of the liner shown to Fig.6 (a) on the plane. (A) The figure which shows the ring line which passes through the cross | intersection part of a 1st cylinder network structure, (b) The figure which expand | deployed the outer peripheral surface of the liner shown to Fig.7 (a) on the plane. The schematic block diagram of the filament winding apparatus of 2nd embodiment. The front view of a 3rd supply part. (A) The figure which looked at the liner which wound the 3rd fiber so that it may overlap with the straight line shown in Drawing 6 (a) from the direction perpendicular to the axis of a liner, (b) Perimeter of the liner shown in Drawing 10 (a) The figure which developed the surface in the plane. The schematic block diagram of the 3rd supply part of the filament winding apparatus of 3rd embodiment. Control block diagram. (A) The figure which looked at the liner which wound the 3rd fiber so that it might overlap with the ring line shown in Drawing 7 (a) from the direction perpendicular to the axis of a liner, (b) Outer circumference of the liner shown in Drawing 13 (a) The figure which developed the surface in the plane. (A) The figure which shows the state which has hold | gripped the front-end | tip of a 3rd fiber with a hold apparatus, (b) The figure which shows the state which is fixing the 3rd fiber to the liner. The figure which shows the state which is winding the 3rd fiber around the outer peripheral surface of a liner. (A) The figure which looked at the liner which wound the 1st fiber and the 2nd fiber from the direction perpendicular to the axis of a liner, (b) The liner which wound the 1st fiber from the direction perpendicular to the axis of a liner The figure seen, (c) The figure which looked at the liner in which the 2nd fiber was wound from the direction perpendicular | vertical to the axis | shaft of a liner. (A) The figure which shows the 1st spiral line which passes through the cross | intersection part of a 4th cylinder network structure, (b) The figure which expand | deployed the outer peripheral surface of the liner shown to Fig.17 (a) in the plane. (A) The figure which shows the 2nd spiral line which passes through the cross | intersection part of a 4th cylinder network structure, (b) The figure which expand | deployed the outer peripheral surface of the liner shown to Fig.18 (a) in the plane. The front view of the 3rd supply part of the filament winding apparatus of 5th embodiment. (A) The figure which looked at the liner which wound the 3rd fiber so that it may overlap with the 1st spiral line from the direction perpendicular to the axis of a liner, (b) The outer peripheral surface of the liner shown in Drawing 20 (a) is made into a plane Expanded figure. The schematic block diagram of the filament winding apparatus of 6th embodiment. The front view of a 3rd supply part. (A) The figure which looked at the liner which wound the 3rd fiber so that it may overlap with the 2nd spiral line from the direction perpendicular to the axis of a liner, (b) The outer peripheral surface of the liner shown in Drawing 23 (a) is made into a plane Expanded figure. (A1)-(b2) is a figure which shows the groove | channel formed in the outer peripheral surface of a liner, and is a figure which shows the state which has adhere | attached the fiber with the heat roller.

[First embodiment]
First, the filament winding apparatus 100 will be described.

The filament winding apparatus 100 is an apparatus for winding the first fiber F1 and the second fiber F2 around the outer peripheral surface (outer peripheral side surface) 2 of the cylindrical liner 1.
Synthetic fibers such as PET (Polyethylene terephthalate) are used for the first fiber F1 and the second fiber F2, and the third fiber F3 described later, but carbon fiber or the like can also be used.

  As shown in FIG. 1, the filament winding apparatus 100 includes a base 10, a transport unit 20, a first supply unit 30, a second supply unit 40, and a control device 50 (see FIG. 4).

A pair of liner support portions 11, 11 are provided on the upper portion of the base 10. A support shaft 12 is installed between the liner support portions 11 and 11.
The conveyance unit 20 moves the liner 1 in the axial direction X. The axial direction X of the liner 1 is a direction parallel to the axis A of the liner 1. The transport unit 20 includes an extrusion unit 21 and a transport roller 22. The extruding unit 21 sequentially pushes the cylindrical liner 1 through the support shaft 12. The extruded liners 1, 1,... Move in the axial direction X by the rotation of the transport roller 22 in a state where they are continuous in the axial direction X. At this time, the liner 1 moves in the axial direction X in a non-rotating state, that is, in a state where the liner 1 is not rotating in the circumferential direction B of the liner 1.
The circumferential direction B of the liner 1 is a rotation direction when the liner 1 rotates around the axis A.

As shown in FIGS. 1 and 2, the first supply unit 30 is fixedly arranged on the movement path of the liner 1, but may be movable.
The first supply unit 30 supplies the first fiber F <b> 1 to the outer periphery of the liner 1. In the present embodiment, the first supply unit 30 supplies a plurality (four) of first fibers F1 to the outer periphery of the liner 1. In addition, you may comprise so that the 1st supply part 30 may supply the single 1st fiber F1 to the outer periphery of the liner 1. FIG.
The 1st supply part 30 has the 1st table 31, the 1st bobbin 32, and the 1st guide member (the 1st guide roller 33 grade).

  The first table 31 is formed in a hollow disk shape, and a hole 31a is formed in the center thereof. The liner 1 moves in the axial direction X through the hole 31 a of the first table 31.

  The first table 31 is attached to the first frame 13 erected from the base 10 and is supported so as to be rotatable in the circumferential direction B of the liner 1. A first actuator (motor) 51 is connected to the first table 31. The first supply unit 30 including the first table 31 rotates in the circumferential direction B of the liner 1 by the driving force of the first actuator 51.

  The first bobbin 32 is attached to the first table 31. In the present embodiment, four first bobbins 32, 32, 32, and 32 are provided. A first fiber F1 is wound around each first bobbin 32.

  The first guide member (first guide roller 33 or the like) is attached to the first table 31 and guides the first fiber F1 drawn from the first bobbin 32 toward the outer periphery of the liner 1. The first guide member is fed so that a plurality of first fibers F1, F1,... Are supplied to the outer periphery of the liner 1 in the circumferential direction B of the liner 1 with, for example, equal intervals D1. Guides one fiber F1, F1,. In the present embodiment, since the first guide member guides the four first fibers F1, F1,..., The four first fibers F1, F1,. Are guided to be supplied to the outer periphery of the liner 1 in a state of being spaced apart.

As shown in FIGS. 1 and 3, the second supply unit 40 is disposed on the downstream side of the first supply unit 30.
The second supply unit 40 supplies the second fiber F2 to the outer periphery of the liner 1. The 2nd supply part 40 of this embodiment supplies the 2nd fiber F2 of the same number as the number of the 1st fibers F1 which the 1st supply part 30 supplies. Therefore, in the present embodiment, the second supply unit 40 supplies the four second fibers F2.
The 2nd supply part 40 has the 2nd table 41, the 2nd bobbin 42, and the 2nd guide member (2nd guide roller 43 grade | etc.,).

  The 2nd table 41 is formed in the shape of a hollow disk, and the hole 41a is formed in the center part. The liner 1 moves in the axial direction X through the hole 41 a of the second table 41.

  The second table 41 is attached to the second frame 14 erected from the base 10 and is supported so as to be rotatable in the circumferential direction B of the liner 1. A second actuator (motor) 52 is connected to the second table 41. The second supply unit 40 including the second table 41 rotates in the circumferential direction B of the liner 1 by the driving force of the second actuator 52.

  The second bobbin 42 is attached to the second table 41. In the present embodiment, the same number (four) of second bobbins 42 as the first bobbins 42 are provided. Each second bobbin 42 is wound with a second fiber F2.

The second guide member (second guide roller 43 or the like) is attached to the second table 41 and guides the second fiber F2 drawn from the second bobbin 42 toward the outer periphery of the liner 1. The second guide member is fed to the outer periphery of the liner 1 with a plurality of second fibers F2, F2,... Arranged in the circumferential direction B of the liner 1 at equal intervals D2. Guides F2, F2,. In this embodiment, since the second guide member guides the four second fibers F2, F2,..., The four second fibers F2, F2,. For example, it guides so that it may be supplied to the outer periphery of the liner 1 in a state of being arranged at equal intervals of D2.
In the present embodiment, the number of first fibers F1 supplied from the first supply unit 30 (number of first bobbins 32) and the number of second fibers F2 supplied from the second supply unit 40 (second bobbins 42). ), And D1 = D2.

As shown in FIG. 4, the control device 50 is connected to the transport unit 20, and can move the liner 1 in the axial direction X by operating the transport unit 20.
The control device 50 is connected to the first actuator 51, and the first supply unit 30 can be rotated in the circumferential direction B of the liner 1 by operating the first actuator 51.
The control device 50 is connected to the second actuator 52, and the second supply unit 40 can be rotated in the circumferential direction B of the liner 1 by operating the second actuator 52.

  Below, the procedure when the 1st fiber F1 and the 2nd fiber F2 are wound around the outer peripheral surface 2 of the liner 1 by the control apparatus 50 is demonstrated.

As shown in FIGS. 1 to 3, the control device 50 moves the liner 1 relative to the first supply unit 30 and the second supply unit 40 in the axial direction X of the liner 1, By rotating the second supply unit 40 relative to the liner 1 in the circumferential direction B of the liner 1, the first fiber F <b> 1 and the second fiber F <b> 2 are wound around the outer peripheral surface 2 of the liner 1 in a spiral manner.
At this time, in this embodiment, the control device 50 moves the liner 1 in the axial direction X by the transport unit 20, but the present invention is not limited to this, and the supply units 30 and 40 are moved in the axial direction X of the liner 1. You may comprise so that it may move. At this time, in this embodiment, the control device 50 rotates the supply units 30 and 40 in the circumferential direction B of the liner 1 by the actuators 51 and 52. However, the present invention is not limited to this, and the liner 1 is rotated. You may comprise so that it may rotate in the direction B.

  At this time, the control device 50 causes the relative rotation direction of the first supply unit 30 and the relative rotation direction of the second supply unit 40 to be opposite to each other.

At this time, the control device 50 determines that the relative rotation speed of the first supply unit 30, the relative rotation speed of the second supply unit 40, and the relative movement speed of the liner 1 are respectively predetermined magnitudes. Control is performed so that α1, α2, and α3.
The predetermined sizes α1, α2, and α3 are such that the first fibers F1 wound around the liner 1 are equally spaced in the axial direction X of the liner 1 when the liner 1 is viewed from a direction perpendicular to the axis A of the liner 1. d1 (d1> 0) appear to be lined up, and the second fibers F2 wound around the liner 1 are lined up at equal intervals d2 (d2> 0) in the axial direction X of the liner 1 It looks like this.
Information on the predetermined sizes α1, α2, and α3 is stored in the control device 50 in advance.

  By configuring as described above, the first fiber F1 supplied from the first supply unit 30 is in the first direction with respect to the axis A of the liner 1 as shown in FIGS. 5 (a) to 5 (c). The second fiber F2 supplied from the second supply unit 40 is spirally wound around the outer peripheral surface 2 of the liner 1 so as to be inclined in the direction opposite to the first direction with respect to the axis A of the liner 1. Is wound around the outer peripheral surface 2 of the liner 1 in a spiral shape so as to be inclined in the second direction. That is, when the liner 1 is viewed from a direction perpendicular to the axis A of the liner 1, the first fiber F1 appears to be inclined to one side with respect to the axis A of the liner 1, and the second fiber F2 is It seems to be inclined to the other side with respect to the axis A of the liner 1.

Thus, the 1st fiber network structure Z1 is formed on the outer peripheral surface 2 of the liner 1 by winding the 1st fiber F1 and the 2nd fiber F2 around the outer peripheral surface 2 of the liner 1 by the control apparatus 50.
The 1st cylinder network structure Z1 is comprised by the 1st fiber F1 and the 2nd fiber F2 which were wound around the outer peripheral surface 2 of the liner 1, and has the shape where the 1st fiber F1 and the 2nd fiber F2 cross in several places. .
As shown in FIG. 5B and FIG. 5C, when the first cylindrical network structure Z1 is viewed from the direction perpendicular to the axis A of the liner 1, the first fiber F1 is It seems that the second fibers F2 are arranged at equal intervals d2 in the axial direction X of the liner 1 and the second fibers F2 appear to be arranged at equal intervals d1 in the axial direction X. Therefore, with respect to the first tubular net structure Z1, the pitch of the first fibers F1 is equal and the pitch of the second fibers F2 is equal.
Regarding the first tubular net structure Z1, the size of the interval d1 between the first fibers F1 and the size of the interval d2 between the second fibers F2 are equal to each other (d1 = d2).

As shown in FIG. 5 (a), with respect to the first tubular network structure Z1, a plurality of gaps (mesh) W1 surrounded by the first fibers F1 and the second fibers F2 are formed, and the first tubular network structure Z1. It is formed over the entire area. That is, the first fiber F1 and the second fiber F2 are wound around the outer peripheral surface 2 of the liner 1 in a mesh shape.
Further, with respect to the first tubular net structure Z1, the gaps W1 are squares (diamonds) having the same shape. As a result, the design can be improved.

As shown in FIGS. 6 (b) and 7 (b), the first tube F1 and the second fiber F2 intersect with each other at the intersection G · G. They are juxtaposed in parallel to A and juxtaposed in the circumferential direction B of the liner 1.
As shown in FIGS. 6 (a) and 6 (b), for the first tubular net structure Z1, a straight line L extending in parallel to the axial direction X of the liner 1 while passing through the intersections G, G. Multiple (eight) can be formed. The straight lines L, L... Are juxtaposed at equal intervals in the circumferential direction B of the liner 1.
As shown in FIGS. 7 (a) and 7 (b), a plurality of ring lines C extending in the circumferential direction B of the liner 1 while passing through the intersections G, G,... it can. The intervals in the axial direction X of the adjacent ring lines C and C are equal intervals d3 (= d1 / 2 = d2 / 2).

[Second Embodiment]
Hereinafter, the filament winding apparatus 200 will be described.

  In the following description, differences from the filament winding apparatus 100 will be described. The same components as those in the filament winding apparatus 100 will be denoted by the same reference numerals, and detailed description thereof will be omitted.

The filament winding apparatus 200 is an apparatus for winding the first fiber F1, the second fiber F2, and the third fiber F3 around the outer peripheral surface (outer peripheral surface) 2 of the cylindrical liner 1.
As shown in FIG. 8, the filament winding apparatus 200 includes a base 10, a transport unit 20, a first supply unit 30, a second supply unit 40, a control device 50 (see FIG. 4), and a third supply. Unit 60.

The filament winding apparatus 200 spirally winds the first fiber F1 around the outer peripheral surface 2 of the liner 1 by the first supply unit 30 and spirals the second fiber F2 around the outer peripheral surface 2 of the liner 1 by the second supply unit 40. The first cylindrical network structure Z1 is wound around the first cylindrical network structure Z1, and the third fiber F3 is wound around the formed first cylindrical network structure Z1 by the third supply unit 60 to form the second cylindrical network structure Z2. .
Below, the 3rd supply part 60 is demonstrated.

As shown in FIGS. 8 and 9, the third supply unit 60 is disposed on the downstream side of the second supply unit 40 so as to be fixed or movable in the axial direction X.
The third supply unit 60 supplies a predetermined number of third fibers F3 to the outer periphery of the liner 1. The predetermined number of third fibers F3 is the same number of third fibers F3 as the number of straight lines L shown in the first embodiment. Therefore, in the present embodiment, the third supply unit 60 supplies the eight third fibers F3 to the outer periphery of the liner 1.
The third supply unit 60 includes a third table 61, a third bobbin 62, and a fiber supply port 63.

The third table 61 is formed in a hollow disk shape, and a hole 61a is formed at the center thereof. The liner 1 moves in the axial direction X through the hole 61 a of the third table 61.
The third table 61 is attached to the third frame 15 erected from the base 10.

  In the present embodiment, for example, eight third bobbins 62 are provided on a creel stand. A third fiber F3 is wound around each third bobbin 62.

The fiber supply ports 63 are provided in the same number as the number of the third fibers F3 supplied by the third supply unit 60. Therefore, in this embodiment, eight fiber supply ports 63, 63... Are provided. The third fibers F3 of the third bobbins 62 are drawn from the fiber supply ports 63 and supplied to the outer periphery of the liner 1.
The fiber supply ports 63, 63... Are attached around the hole 61 a of the third table 61 and are juxtaposed in the circumferential direction B of the liner 1 at equal intervals. Each fiber supply port 63 is provided at a position facing each straight line L. This is because each fiber supply port 63 can supply the third fiber F3 toward each of the opposing straight lines L.

  Below, the procedure when the 1st fiber F1, the 2nd fiber F2, and the 3rd fiber F3 are wound around the outer peripheral surface 2 of the liner 1 by the control apparatus 50 is demonstrated.

  First, as shown in FIG. 8, the control device 50 winds the first fiber F1 and the second fiber F2 around the outer peripheral surface 2 of the liner 1 in the same procedure as described in the first embodiment, One tube network structure Z1 is formed.

Next, as shown in FIG. 8 and FIG. 9, the control device 50 puts the non-rotating liner 1 into the fiber supply ports 63, 63. On the other hand, the third fiber F3 is pulled out from each fiber supply port 63 and wound around the outer peripheral surface 2 of the liner 1 by relatively moving in the axial direction X of the liner 1.
At this time, in the present embodiment, the control device 50 moves the liner 1 in the axial direction X by the transport unit 20, but the present invention is not limited to this, and the fiber supply ports 63, 63. It may be configured to move in the axial direction X.

  When the third fibers F3, F3,... Are wound around the outer peripheral surface 2 of the liner 1 by the control device 50, the third fibers F3 are the first fibers F1 and the second fibers wound around the outer peripheral surface 2 of the liner 1. It is wound in parallel with the axis A of the liner 1 so as to pass through the intersections G, G. That is, each third fiber F3 is wound around the outer peripheral surface 2 of the liner 1 so as to overlap each straight line L. As a result, the second tubular net structure Z2 is formed on the outer peripheral surface 2 of the liner 1.

As shown in FIGS. 10 (a) and 10 (b), the second tubular network structure Z2 includes a first fiber F1, a second fiber F2, and a third fiber F3 wound around the outer peripheral surface 2 of the liner 1. Consists of. The second cylindrical net structure Z2 has a shape in which each third fiber F3 is wound in parallel to the axis A of the liner 1 so as to overlap each straight line L, and the first fiber F1 and the second fiber The fiber F2 and the third fiber F3 have a shape that overlaps with each other at the intersections G, G,.
Further, with respect to the second cylindrical network structure Z2, the third fibers F3, F3,... Are juxtaposed in the circumferential direction B of the liner 1 at equal intervals. Accordingly, the pitch of the third fibers F3 is uniform with respect to the second cylindrical net structure Z2.
In addition, regarding the second cylindrical network structure Z2, a plurality of gaps (mesh) W2 surrounded by the first fiber F1, the second fiber F2, and the third fiber F3 are formed, and the entire area of the second cylindrical network structure Z2 Formed over. That is, the first fiber F1, the second fiber F2, and the third fiber F3 are wound around the outer peripheral surface 2 of the liner 1 in a mesh shape.
Moreover, regarding the second cylindrical network structure Z2, the gaps W2 are triangles having the same shape (regular triangle or isosceles triangle). As a result, the design can be improved.

  In addition, about the order by which the 1st fiber F1, the 2nd fiber F2, and the 3rd fiber F3 are wound around the outer peripheral surface 2 of the liner 1, it is not limited to the order of this embodiment, You may replace.

[Third embodiment]
Hereinafter, the filament winding apparatus 300 will be described.

  In the following description, differences from the filament winding apparatus 100 will be described. The same components as those in the filament winding apparatus 100 will be denoted by the same reference numerals, and detailed description thereof will be omitted.

The filament winding apparatus 300 is an apparatus for winding the first fiber F1, the second fiber F2, and the third fiber F3 around the outer peripheral surface (outer peripheral side surface) 2 of the cylindrical liner 1.
The filament winding apparatus 300 includes a filament winding apparatus 100, a third fiber base 16, and a third supply unit 70.

  The filament winding apparatus 300 spirally winds the first fiber F1 around the outer peripheral surface 2 of the liner 1 by the first supply unit 30 and spirals the second fiber F2 around the outer peripheral surface 2 of the liner 1 by the second supply unit 40. 1st cylinder network structure Z1 is wound (refer FIG. 1), the 3rd fiber F3 is wound by the 3rd supply part 70 with respect to the formed 1st cylinder network structure Z1, and the 3rd cylinder network structure Form body Z3.

FIG. 11 shows only the installation location of the third supply unit 70 in the filament winding apparatus 300. As shown in FIG. 11, a pair of liner support portions 17, 17 are provided on the upper portion of the third fiber base 16. A support shaft 18 is installed between the liner support portions 17 and 17.
The liner 1 is inserted into the support shaft 18 after the first fiber F1 and the second fiber F2 are wound by the control device 50.

The third supply unit 70 supplies the third fiber F3 to the outer periphery of the liner 1 inserted through the support shaft 18.
The third supply unit 70 includes a third bobbin 71, a support member 72, and a fiber supply port 73.

A plurality of third bobbins 71 are provided. A third fiber F3 is wound around each third bobbin 71.
A plurality of fiber supply ports 73, 73... Are attached to the support member 72. The third fibers F3 of the third bobbins 71 are drawn out from the fiber supply ports 73 and supplied to the outer periphery of the liner 1.
The fiber supply ports 73, 73... Are arranged so as to face the liner 1 inserted through the support shaft 18.

The fiber supply ports 73, 73,... Are juxtaposed in the axial direction X of the liner 1 with a predetermined interval. The predetermined interval is an interval equal to the interval d3 of the ring lines C · C.
Each fiber supply port 73 is provided at a position facing each ring line C. This is because each fiber supply port 73 can supply the third fiber F3 toward each ring line C facing each other.

  A third actuator (motor) 53 is connected to the support member 72. As shown in FIG. 12, the control device 50 is connected to the third actuator 53. The control device 50 can rotate the support member 72 (fiber supply ports 73, 73...) In the circumferential direction B of the liner 1 by operating the third actuator 53.

  Below, the procedure when the 1st fiber F1, the 2nd fiber F2, and the 3rd fiber F3 are wound around the outer peripheral surface 2 of the liner 1 by the control apparatus 50 is demonstrated.

  First, as shown in FIG. 1, the control device 50 winds the first fiber F1 and the second fiber F2 around the outer peripheral surface 2 of the liner 1 in the same procedure as described in the first embodiment. One tube network structure Z1 is formed.

  Next, the liner 1 wound with the first fiber F1 and the second fiber F2 is inserted through the support shaft 18.

Next, as shown in FIG. 11, the control device 50 makes the liner 1 stationary in the axial direction X in a state where the plurality of fiber supply ports 73, 73... Are stationary in the axial direction X of the liner 1. On the other hand, the third fiber F3 is pulled out from each fiber supply port 73 and wound around the outer peripheral surface 2 of the liner 1 by relative rotation (one rotation) in the circumferential direction B.
At this time, in the present embodiment, the control device 50 rotates the fiber supply ports 73, 73... In the circumferential direction B of the liner 1 by the third actuator 53, but the present invention is not limited to this, and the liner 1 May be configured to rotate in the circumferential direction B.

  When the third fibers F3, F3,... Are wound around the outer peripheral surface 2 of the liner 1 by the control device 50, each third fiber F3 has an intersection G, G,. • Wrapped perpendicular to the axis A of the liner 1 to pass through. That is, each third fiber F3 is wound in an annular shape in the circumferential direction B of the liner 1 so as to overlap each ring line C. As a result, a third tubular net structure Z3 is formed on the outer peripheral surface 2 of the liner 1.

As shown in FIGS. 13 (a) and 13 (b), the third tubular net structure Z3 is composed of the first fiber F1, the second fiber F2, and the third fiber F3 wound around the outer peripheral surface 2 of the liner 1. Composed. The third cylinder network structure Z3 has a shape in which each third fiber F3 is annularly wound so as to overlap each ring line C, and the first fiber F1, the second fiber F2, and the third fiber F3 are formed. Each of the intersections G, G.
Further, with respect to the third cylindrical net structure Z3, the third fibers F3, F3,... Are juxtaposed on the axis A of the liner 1 with an equal interval d3. Therefore, with respect to the third cylindrical net structure Z3, the pitch of the third fibers F3 is uniform.
In addition, regarding the third cylinder network structure Z3, a plurality of gaps (mesh) W3 surrounded by the first fibers F1, the second fibers F2, and the third fibers F3 are formed and formed over the entire area. That is, the first fiber F1, the second fiber F2, and the third fiber F3 are wound around the outer peripheral surface 2 of the liner 1 in a mesh shape.
In addition, regarding the third cylindrical network structure Z3, the gaps W3 are triangles having the same shape (regular triangle or isosceles triangle). As a result, the design can be improved.

  Moreover, about the order by which the 1st fiber F1, the 2nd fiber F2, and the 3rd fiber F3 are wound around the outer peripheral surface 2 of the liner 1, it is not limited to the order of this embodiment, You may replace.

As shown in FIGS. 14A to 15, a slit 2 b extending in the axial direction X of the liner 1 is formed on the outer peripheral surface 2 of the liner 1, and a suction device is provided in the slit 2 b. And the tip of the 3rd fiber F3 * F3 ... supplied from fiber supply port 73 * 73 ... is grasped with hold device 3, and hold device 3 is moved, and 3rd fiber F3 * F3 ... You may comprise so that it may pull out to the vicinity of the slit 2b.
With this configuration, the third fibers F3, F3,... Drawn to the vicinity of the slit 2b by the holding device 3 are adsorbed to the slit 2b by the suction force of the suction device and fixed to the liner 1. The Thereafter, the third fibers F3, F3,... Are separated from the holding device 3 and the fiber supply ports 73, 73,. F3... Can be wound around the outer peripheral surface 2 of the liner 1.
Accordingly, it is possible to smoothly start the operation of winding the plurality of third fibers F3, F3,... Around the outer peripheral surface 2 of the liner 1.

[Fourth embodiment]
In addition, regarding the filament winding apparatus 100 of the first embodiment, the number of the first fibers F1 (the number of the first bobbins 32) supplied from the first supply unit 30 and the second supplied from the second supply unit 40. The number of the two fibers F2 (the number of the second bobbins 42) is the same, but may be different from each other. In this case, the interval D1 when the first fibers F1, F1,... Are supplied to the outer periphery of the liner 1, and the interval D2 when the second fibers F2, F2,. Are different from each other (D1 ≠ D2).
In this way, with the configuration in which the number of the first bobbins 32 and the number of the second bobbins 42 are different from each other, the control device 50 is applied to the outer peripheral surface 2 of the liner 1 in the same procedure as described in the first embodiment. The first fiber F1 and the second fiber F2 are wound. As a result, what is formed on the outer peripheral surface 2 of the liner 1 is referred to as a fourth tubular network structure Z4.

As shown to Fig.16 (a), the 4th cylinder net structure Z4 is comprised by the 1st fiber F1 and the 2nd fiber F2 which were wound around the outer peripheral surface 2 of the liner 1, and the 1st fiber F1 and the 2nd fiber F2 has a shape that intersects at a plurality of locations.
As shown in FIGS. 16 (b) and 16 (c), when the fourth tube network structure Z 4 is viewed from the direction perpendicular to the axis A of the liner 1, the first fiber F 1 is the axis of the liner 1. It appears that the second fibers F2 are arranged at equal intervals d2 in the axial direction X of the liner 1 and appear to be arranged at equal intervals d1 in the direction X. Therefore, with respect to the fourth tubular net structure Z4, the pitch of the first fibers F1 is equalized, and the pitch of the second fibers F2 is equalized.
Regarding the fourth tubular net structure Z4, the size of the interval d1 between the first fibers F1 and the size of the interval d2 between the second fibers F2 are different from each other (d1 ≠ d2).

As shown in FIG. 16 (a), with respect to the fourth tube net structure Z4, a plurality of gaps (mesh) W4 surrounded by the first fibers F1 and the second fibers F2 are formed, and the gaps W4 are formed in the fourth tube network. It is formed over the entire area of the structure Z4. That is, the first fiber F1 and the second fiber F2 are wound around the outer peripheral surface 2 of the liner 1 in a mesh shape.
In addition, regarding the fourth tubular net structure Z4, the gaps W4 are parallelograms having the same shape. As a result, the design can be improved.

As shown in FIGS. 17 (a) to 18 (b), with respect to the fourth tubular net structure Z4, the intersections G, G... Of the first fibers F1 and the second fibers F2 are in the axial direction of the liner 1. Two types of spiral lines J1 and J2 that are spirally juxtaposed to X and extend spirally in the axial direction X of the liner 1 while passing through the intersections G, G. The second spiral line J2 has a shorter spiral pitch than the first spiral line J1. The helical pitch is the length in the axial direction X of the liner 1 that is required when the spiral line is wound around the outer peripheral surface 2 of the liner 1 by one round.
As shown in FIG. 17B, a plurality (seven) of first spiral lines J1 can be formed with respect to the fourth tubular net structure Z4. The first spiral lines J1, J1,... Are juxtaposed at equal intervals in the circumferential direction B of the liner 1.
As shown in FIG. 18B, only one second spiral line J2 can be formed with respect to the fourth tubular net structure Z4.

[Fifth embodiment]
The third fiber F3, F3,... Is wound around the outer peripheral surface 2 of the liner 1 so as to pass through the first spiral lines J1, J1,. A body Z5 is formed.
As shown in FIGS. 8 and 19, in the case of forming the fifth tubular net structure Z5, in the filament winding apparatus 200 of the second embodiment, the third supply unit 60 has the number of first spiral lines J1. And the same number (seven) of third fibers F3 as those supplied to the outer periphery of the liner 1. Accordingly, in the present embodiment, seven fiber supply ports 63, 63... Are provided in the third table 61 at equal intervals in the circumferential direction B of the liner 1.
Further, the filament winding apparatus 200 is configured such that the fiber supply ports 63, 63... Can rotate relative to the liner 1 in the circumferential direction B. For example, an actuator (motor) is connected to the third table 61, and the control device 50 operates the actuator to move the third table 61 (fiber supply ports 63, 63...) In the circumferential direction B of the liner 1. It is configured to be able to rotate.

  Below, the procedure when the 5th cylinder network structure Z5 is formed by the control apparatus 50 is demonstrated using the above-mentioned structure.

  First, the control device 50 wraps the first fiber F1 and the second fiber F2 around the outer peripheral surface 2 of the liner 1 in the same procedure as described in the fourth embodiment, so that the fourth tubular net structure Z4 is wound. It forms (refer FIG.8 and FIG.16 (a)).

Next, as shown in FIGS. 8 and 19, the control device 50 moves the third supply unit 60 (fiber supply ports 63, 63...) Relative to the liner 1 in the axial direction X of the liner 1. Meanwhile, by rotating the third supply unit 60 relative to the liner 1 in the circumferential direction B, the third fibers F3 are drawn out from the fiber supply ports 63 of the third supply unit 60, respectively, to the outer peripheral surface 2 of the liner 1. Wrap in a spiral.
At this time, the control device 50 controls the relative rotation speed of the third supply unit 60 and the relative movement speed of the third supply unit 60 so as to have predetermined sizes β1 and β2, respectively. The predetermined sizes β1 and β2 are such that the third fibers F3 drawn out from the fiber supply ports 63 of the third supply unit 60 have the same pitch as the spiral pitch of the first spiral line J1 and the outer peripheral surface 2 of the liner 1. It is a size that can be spirally wound around. Information about the predetermined sizes β1 and β2 is stored in the control device 50 in advance.
As a result, a fifth tubular net structure Z5 is formed on the outer peripheral surface 2 of the liner 1.

As shown in FIGS. 20 (a) and 20 (b), the fifth tubular net structure Z5 is composed of a first fiber F1, a second fiber F2, and a third fiber F3 wound around the outer peripheral surface 2 of the liner 1. Composed. The fifth cylinder network structure Z5 has a shape in which each third fiber F3 is spirally wound so as to overlap each first spiral line J1, and the first fiber F1, the second fiber F2, and the first fiber The three fibers F3 have a shape that overlaps with each other at the intersections G, G.
As shown in FIG. 20A, with respect to the fifth tubular net structure Z5, the third fibers F3 are equally spaced in the axial direction X of the liner 1 when viewed from the direction perpendicular to the axis A of the liner 1. Looks like they are lined up. Therefore, with respect to the fifth tubular net structure Z5, the pitch of the third fibers F3 is uniform.
In addition, with respect to the fifth cylinder network structure Z5, a plurality of gaps (mesh) W5 surrounded by the first fiber F1, the second fiber F2, and the third fiber F3 are formed, and the entire area of the fifth cylinder network structure Z5. Formed over. That is, the first fiber F1, the second fiber F2, and the third fiber F3 are wound around the outer peripheral surface 2 of the liner 1 in a mesh shape.
Further, with respect to the fifth tubular net structure Z5, the gaps W5 are triangular with the same shape. As a result, the design can be improved.

  Moreover, about the order by which the 1st fiber F1, the 2nd fiber F2, and the 3rd fiber F3 are wound around the outer peripheral surface 2 of the liner 1, it is not limited to the order of this embodiment, You may replace.

[Sixth embodiment]
Hereinafter, the filament winding apparatus 400 will be described.

  In the following description, differences from the filament winding apparatus 100 will be described. The same components as those in the filament winding apparatus 100 will be denoted by the same reference numerals, and detailed description thereof will be omitted.

  As shown in FIG. 21, the filament winding apparatus 400 includes a base 10, a transport unit 20, a first supply unit 30, a second supply unit 40, a control device 50, and a third supply unit 80. Prepare.

  In the filament winding apparatus 400, the number of first fibers F1 supplied from the first supply unit 30 (number of first bobbins 32) and the number of second fibers F2 supplied from the second supply unit 40 (second). The number of bobbins 42 is different from each other as in the fourth embodiment. That is, the fourth fiber network structure Z4 is formed by the first fibers F1 supplied from the first supply unit 30 and the second fibers F2 supplied from the second supply unit 40 ( FIG. 16 (a)).

The filament winding apparatus 400 forms the sixth cylinder network structure Z6 by winding the third fiber F3 around the formed fourth cylinder network structure Z4 with the third supply unit 80.
Below, the 3rd supply part 80 is demonstrated.

As shown in FIGS. 21 and 22, the third supply unit 80 is fixedly or movably disposed on the downstream side of the second supply unit 40.
The third supply unit 80 supplies the third fiber F3 to the outer periphery of the liner 1. The third supply unit 80 of the present embodiment supplies one third fiber F3.
The 3rd supply part 80 has the 3rd table 81, the 3rd bobbin 82, and the 3rd guide member (3rd guide roller 83 grade | etc.,).

  The third table 81 is formed in a hollow disk shape, and a hole 81a is formed at the center thereof. The liner 1 moves in the axial direction X through the hole 81 a of the third table 81.

The third table 81 is attached to the third frame 19 standing from the base 10 and is supported so as to be rotatable in the circumferential direction B of the liner 1. A third actuator (motor) 54 is connected to the third table 81. The third supply unit 80 including the third frame 19 rotates in the circumferential direction B of the liner 1 by the driving force of the third actuator 54.
The control device 50 is connected to the third actuator 54, and can operate the third actuator 54 to rotate the third supply unit 80 in the circumferential direction B of the liner 1.

  The third bobbin 82 is attached to the third table 81. The second fiber F <b> 2 is wound around the third bobbin 82.

  The third guide member (the third guide roller 83 or the like) is attached to the third table 81 and guides the third fiber F3 drawn from the third bobbin 82 toward the outer periphery of the liner 1.

  Below, the procedure when the 1st fiber F1, the 2nd fiber F2, and the 3rd fiber F3 are wound around the outer peripheral surface 2 of the liner 1 by the control apparatus 50 is demonstrated.

  First, the control device 50 wraps the first fiber F1 and the second fiber F2 around the outer peripheral surface 2 of the liner 1 in the same procedure as described in the fourth embodiment, so that the fourth tubular net structure Z4 is wound. It forms (refer Fig.16 (a) and FIG. 21).

Next, as shown in FIGS. 21 and 22, the control device 50 moves the liner 1 to the liner 1 while moving the liner 1 relative to the third supplier 80 in the axial direction X of the liner 1. On the other hand, the third fiber F3 is spirally wound around the outer peripheral surface 2 of the liner 1 by being relatively rotated in the circumferential direction B of the liner 1.
At this time, in the present embodiment, the control device 50 moves the liner 1 in the axial direction X by the transport unit 20, but the present invention is not limited to this, and the third supply unit 80 is moved in the axial direction X of the liner 1. You may comprise so that it may move. At this time, in this embodiment, the control device 50 rotates the third supply unit 80 in the circumferential direction B of the liner 1 by the third actuator 54. However, the present invention is not limited to this, and the liner 1 is rotated. You may comprise so that it may rotate in the direction B.

When the control device 50 spirally wraps the third fiber F3 around the outer peripheral surface 2 of the liner 1, the relative rotation speed of the third supply unit 80 and the relative movement speed of the third supply unit 80 are respectively predetermined. Is controlled to be γ1 · γ2. In the predetermined sizes γ1 and γ2, the third fibers F3 supplied from the third supply unit 80 are spirally wound around the outer peripheral surface 2 of the liner 1 at the same pitch as the spiral pitch of the second spiral line J2. It is a size. Information on the predetermined sizes γ1 and γ2 is stored in the control device 50 in advance.
As a result, a sixth tubular net structure Z6 is formed on the outer peripheral surface 2 of the liner 1.

As shown in FIGS. 23 (a) and 23 (b), the sixth tubular net structure Z6 includes a first fiber F1, a second fiber F2, and a third fiber F3 wound around the outer peripheral surface 2 of the liner 1. Composed. The sixth cylinder network structure Z6 has a shape in which the third fiber F3 is spirally wound so as to overlap the second spiral line J2, and the first fiber F1, the second fiber F2, and the third fiber F3. Have a shape that overlaps with each other at the intersections G, G.
As shown in FIG. 23A, with respect to the sixth tubular net structure Z6, the third fibers F3 are equally spaced in the axial direction X of the liner 1 when viewed from the direction perpendicular to the axis A of the liner 1. Looks like they are lined up. Therefore, with respect to the sixth cylindrical net structure Z6, the pitch of the third fibers F3 is uniform.
In addition, regarding the sixth cylinder network structure Z6, a plurality of gaps (mesh) W6 surrounded by the first fibers F1, the second fibers F2, and the third fibers F3 are formed, and the gaps W6 are the sixth cylinder network structures Z6. It is formed over the entire area. That is, the first fiber F1, the second fiber F2, and the third fiber F3 are wound around the outer peripheral surface 2 of the liner 1 in a mesh shape.
In addition, regarding the sixth cylindrical network structure Z6, the gaps W6 are triangular with the same shape. As a result, the design can be improved.

  Moreover, about the order by which the 1st fiber F1, the 2nd fiber F2, and the 3rd fiber F3 are wound around the outer peripheral surface 2 of the liner 1, it is not limited to the order of this embodiment, You may replace.

  As shown in FIGS. 24 (a1) to (b2), the outer peripheral surface 2 of each liner 1 on which the tubular net structures Z1 to Z6 are formed is for suppressing the positional deviation of the wound fibers F1 to F3. Each groove 2a is formed. The groove 2a has a shape that is recessed in accordance with the winding position of the fibers F1 to F3, and has a mesh shape corresponding to the shape of the formed cylindrical network structures Z1 to Z6.

  The tubular net structures Z1 to Z6 are heated and pressed by the heat roller H while being formed on the outer peripheral surface 2 of the liner 1 (see FIGS. 24A2 to 24B2). As a result, the fibers F1 to F3 (in the case of the cylindrical network structures Z1 and Z4, the fibers F1 and F2) are bonded to each other, and the cylindrical network structures Z1 to Z6 are integrally formed.

As described above, in the cylindrical net structures Z1 and Z4, the pitch of the first fibers F1 and the pitch of the second fibers F2 are equal. Moreover, as for the cylinder network structure Z2, Z3, Z5, and Z6, the pitch of each fiber F1-F3 becomes equal, respectively.
Thereby, the cylindrical network structures Z1 to Z6 impregnated with the resin are formed on the outer peripheral surface 2 of the liner 1, the resin is heated and cured, and the reinforcing fiber layer is formed on the outer peripheral surface 2 of the liner 1. When the strength of the liner 1 is improved, the reinforced liner 1 becomes difficult to twist even if stress is applied. Therefore, the strength of the liner 1 can be stably improved.

DESCRIPTION OF SYMBOLS 1 Liner 2 Outer peripheral surface 30 1st supply part 40 2nd supply part 60 * 70 * 80 3rd supply part 100 * 200 * 300 * 400 Filament winding apparatus F1 1st fiber F2 2nd fiber F3 3rd fiber Z1 1st cylinder Net structure Z2 Second cylinder network structure Z3 Third cylinder network structure Z4 Fourth cylinder network structure Z5 Fifth cylinder network structure Z6 Sixth cylinder network structure

Claims (7)

A filament winding device for winding fibers around an outer peripheral surface of a liner,
A first supply unit for supplying a first fiber to the outer periphery of the liner;
A second supply section for supplying second fibers to the outer periphery of the liner;
With
While the liner is moved relative to the first supply unit and the second supply unit in the axial direction of the liner, the first supply unit and the second supply unit are moved in the circumferential direction of the liner with respect to the liner. The first fiber supplied from the first supply unit is wound around the outer peripheral surface of the liner so as to be inclined in the first direction with respect to the axis of the liner, and the second supply unit. The second fiber supplied from the outer periphery of the liner is wound around the outer circumferential surface of the liner so as to be inclined in a second direction that is opposite to the first direction with respect to the axis of the liner. It is composed of the first fiber and the second fiber wound around an outer peripheral surface, and forms a tubular network structure having a gap surrounded by the first fiber and the second fiber,
Filament winding device. Wrapping the first fiber and the second fiber around the outer peripheral surface of the liner so that the pitch of the first fiber is equal and the pitch of the second fiber is equal,
The filament winding apparatus according to claim 1. A third supply part for supplying third fibers to the outer periphery of the liner;
Winding the third fiber in parallel, perpendicular to the axis of the liner, or spirally so as to pass through the intersection of the first fiber and the second fiber wound around the outer peripheral surface of the liner Features
The filament winding apparatus according to claim 1 or 2. The third supply unit is provided with a plurality of fiber supply ports juxtaposed in the circumferential direction of the liner,
The third fiber is pulled out from each fiber supply port by moving the non-rotating liner relative to the fiber supply port in the axial direction of the liner while the fiber supply port is stationary. Wrapping in parallel with the axis of the liner,
The filament winding apparatus according to claim 3. The third supply unit is provided with a plurality of fiber supply ports juxtaposed in the axial direction of the liner,
The plurality of fiber supply ports are rotated in the circumferential direction of the liner with respect to the liner stationary in the axial direction while being stationary in the axial direction of the liner. The three fibers are pulled out from each and wound perpendicular to the axis of the liner,
The filament winding apparatus according to claim 3. A slit extending in the axial direction of the liner is formed on the outer peripheral surface of the liner,
A plurality of the third fibers are fixed to the liner by adsorbing the third fibers drawn from the plurality of fiber supply ports to the slit,
The filament winding apparatus according to claim 5. The third supply unit is rotated relative to the liner in the circumferential direction of the liner while moving the third supply unit relative to the liner in the axial direction of the liner. The third fiber supplied from is wound spirally around the outer peripheral surface of the liner,
The filament winding apparatus according to claim 3.

Images