JP5687982B2 - Filament winding method and filament winding apparatus - Google Patents

Description

  The present invention relates to a filament winding method and a filament winding apparatus.

  A filament winding apparatus that includes a hoop winding device and a helical winding device, and alternately and repeatedly performs hoop winding and helical winding on the liner to wind a fiber bundle around the liner to form a reinforcing layer is known. There is (for example, Patent Document 1).

  The operation of the conventional hoop winding device will be described. When the hoop winding is completed, the hoop winding device moves to a retracted position away from the liner while the fiber bundle is connected to the liner. Next, helical winding is performed on the hoop winding, and when the helical winding is completed, the hoop winding apparatus moves to a position where the next hoop winding is started. At this time, the movement is started while performing the sweet winding from the retreat position. The sweet winding is a winding method performed when the hoop winding device is moved while winding the fiber bundle, and the sweet wound fiber bundle does not participate in the formation of the reinforcing layer.

  When the hoop winding device moves to the end of the liner while performing sweet winding, the hoop winding device starts combination winding. The combination winding is a winding method in which the fiber bundle winding position is gradually moved to the hoop winding start position while the fiber bundle is alternately and repeatedly wound around both ends of the liner (see Patent Document 2).

  The reason for performing combination winding is that the fiber bundle does not slip and wind even when hoop winding is performed on an inclined portion such as the dome portion of the liner. For this reason, the fiber bundle is wound at an angle such that the fiber bundle is pulled in the liner axial direction by combination winding, the dome portion is wound up, and the angle is gradually changed to the hoop winding angle at the cylindrical portion of the liner where the fiber bundle does not slip. .

  As described above, in the filament winding apparatus including the conventional hoop winding device and the helical winding device, the hoop winding and the helical winding are continuously performed. When performing, the hoop-wrapped fiber bundle is kept connected to the liner surface without being cut.

  However, when helical winding is completed and the next hoop winding is performed, the hoop winding device moves from the retracted position to the hoop winding start position while performing a sweet winding or combination winding of the fiber bundle. For this reason, if the hoop-wrapped fiber bundle is kept connected to the liner surface without being cut, it takes time to perform sweet winding or combination winding of the fiber bundle, and the time required for hoop winding becomes longer. In addition, sweet winding or combination winding of fiber bundles hardly participates in the formation of the reinforcing layer of the liner. For this reason, an extra fiber bundle will be used and the increase in manufacturing cost will be caused.

JP 2010-36461 A JP 2009-174700 A

  The present invention has been made to solve the above problems. The object of the present invention is to reduce the time required for hoop winding by making sweet winding or combination winding of the fiber bundle unnecessary when starting hoop winding regardless of whether a fiber layer is formed on the liner. It is.

  The problem to be solved by the present invention is as described above. Next, means for solving the problem will be described.

That is, the first invention is a filament winding method comprising a hoop winding device for inserting a liner and a holding portion, and performing a hoop winding process,
The hoop winding step includes first to sixth steps.
The first step, the hoop winding device is wound around the fiber bundle to the holding portion in the radial direction of the outside of the liner, temporarily holds the fiber bundle.
The second step moves the winding position of the fiber bundle from the holding portion to the liner by moving the holding portion relative to the hoop winding device at the start position of the hoop winding , Start hoop winding of the fiber bundle around the liner.
A 3rd process cut | disconnects the fiber bundle spanned over the said liner from the said holding | maintenance part.
In the fourth step, a hoop winding of a fiber bundle is performed on the liner.
The fifth step is to move the winding position of the fiber bundle from the liner to the holding portion by moving the holding portion relative to the hoop winding device at the end position of the hoop winding , A fiber bundle is wound around the holding portion to hold the fiber bundle.
In the sixth step, the fiber bundle spanned from the liner to the holding portion is cut.

The second invention comprises a hoop wrapping device and a holding portion for inserting the liner, a filament winding apparatus winds the fiber bundle to the liner by the hoop winding device,
The hoop winding device performs hoop winding of the fiber bundle on the liner.
The holding unit can wind the fiber bundle with the hoop winding device , and temporarily holds the fiber bundle on the outer side in the radial direction of the liner.
The cutter cuts the fiber bundle.
The control unit controls the winding start operation, the first cutting operation, the winding operation, the retracting operation, and the second cutting operation.
In the winding start operation, after the fiber bundle is wound around the holding portion , the holding portion moves relative to the hoop winding device at the hoop winding start position, so that the fiber bundle winding position is The holder is moved to the liner, and the hoop winding of the fiber bundle around the liner is started.
In the first cutting operation, the fiber bundle spanned from the holding portion to the liner is cut by the cutter.
In the winding operation, the fiber bundle is hoop-wound around the liner.
In the retracting operation, at the end position of the hoop winding, the holding unit moves relative to the hoop winding device to move the winding position of the fiber bundle from the liner to the holding unit, and the holding unit A fiber bundle is wound around to hold the fiber bundle.
In the second cutting operation, the fiber bundle spanned from the liner to the holding portion is cut by the cutter.

3rd invention is 2nd invention, Comprising:
In the winding start operation and the retracting operation, the control unit controls the relative position of the holding unit to change in the axial direction of the liner by moving relative to the hoop winding device. I do.

4th invention is either invention of 2nd or 3rd, Comprising:
The holding portion is composed of a plurality of members arranged in the circumferential direction of the liner, and the holding portion can be enlarged or reduced by moving the plurality of members in the radial direction of the liner.

A fifth invention is any one of the second to fourth inventions,
The holding unit includes a guide unit that guides the fiber bundle from the liner to the holding unit in the retracting operation.

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

  According to the first invention, when starting the hoop winding, at the hoop winding start position, the winding position of the fiber bundle is moved from the holding portion to the liner, and the hoop winding of the fiber bundle around the liner is started. When the hoop winding is finished, at the hoop winding end position, the winding position of the fiber bundle is moved from the liner to the holding portion, and the fiber bundle is wound around the holding portion to hold the fiber bundle. Thus, when starting the hoop winding, at the hoop winding start position, the winding position of the fiber bundle is moved from the holding portion to the liner, so that the hoop winding is performed regardless of whether the fiber layer is formed on the liner. When starting, the time required for hoop winding can be shortened by eliminating the need for sweet winding or combination winding of the fiber bundle. Moreover, since the sweet bundle and combination winding of a fiber bundle are unnecessary, the usage-amount of a fiber bundle can be reduced and manufacturing cost can be reduced.

  According to the second invention, when starting the hoop winding, at the hoop winding start position, the winding position of the fiber bundle is moved from the holding portion to the liner, and the hoop winding of the fiber bundle around the liner is started. Start operation. When ending the hoop winding, at the end position of the hoop winding, the wrapping position of the fiber bundle is moved from the liner to the holding portion, and a retracting operation is performed to wind the fiber bundle around the holding portion and hold the fiber bundle. Thus, when starting the hoop winding, at the hoop winding start position, the winding position of the fiber bundle is moved from the holding portion to the liner, so that the hoop winding is performed regardless of whether the fiber layer is formed on the liner. When starting, the time required for hoop winding can be shortened by eliminating the need for sweet winding or combination winding of the fiber bundle. Moreover, since the sweet bundle and combination winding of a fiber bundle are unnecessary, the usage-amount of a fiber bundle can be reduced and manufacturing cost can be reduced.

  According to the third aspect, in the winding start operation and the retracting operation, the relative position between the winding unit and the holding unit is changed in the axial direction of the liner. Thereby, the winding start operation and the evacuation operation can be performed with few operations.

  According to the fourth aspect of the present invention, the holding part is composed of a plurality of members arranged in the circumferential direction of the liner, and the holding part can be enlarged or reduced by moving the plurality of members in the radial direction of the liner. . For this reason, it is possible to easily cope with liners having different radii.

  According to the fifth invention, the holding portion includes the guide portion that guides the fiber bundle from the liner to the holding portion in the retracting operation. For this reason, the fiber bundle can be reliably wound around the holding portion in the retracting operation.

1 is a side view of an FW device 100 according to a first embodiment. The front view of the winding table 34 of the hoop winding apparatus 30 seen from the arrow C direction of FIG. FIG. 2 is a front view of the yarn hooking device 50 of the hoop winding device 30 as viewed from the direction of arrow D in FIG. 1. The side view of the hoop winding apparatus 30 and the liner 1 which shows the state of winding start operation | movement. Sectional drawing of the hoop winding apparatus 30 and the liner 1 cut | disconnected by the 5-5 line | wire of FIG. The side view of the hoop winding apparatus 30 and the liner 1 which shows the state of winding start operation | movement. Sectional drawing of the hoop winding apparatus 30 and the liner 1 cut | disconnected by the 7-7 line | wire of FIG. The side view of the hoop winding apparatus 30 and the liner 1 which shows the state of winding operation | movement. The side view of the hoop winding apparatus 30 and the liner 1 which shows the state of retraction | saving operation | movement. Sectional drawing of the hoop winding apparatus 30 and the liner 1 cut | disconnected by the 10-10 line | wire of FIG. The side view of the hoop winding apparatus 30 and the liner 1 which shows the state of retraction | saving operation | movement. Sectional drawing of the hoop winding apparatus 30 and the liner 1 cut | disconnected by the 12-12 line | wire of FIG.

  Next, embodiments of the invention will be described with reference to the drawings.

  First, the overall configuration of the filament winding apparatus 100 according to the first embodiment of the present invention will be described with reference to FIG. Hereinafter, the filament winding apparatus 100 is abbreviated as FW apparatus 100.

  FIG. 1 is a side view showing the FW device 100. The FW device 100 winds the fiber bundle F impregnated with resin around the liner 1 by alternately repeating the hoop winding by the hoop winding device 30 and the helical winding by the helical winding device 40 around the liner 1. It is a device that goes.

  Arrows A and B shown in FIG. 1 indicate the front-rear direction of the FW device 100 and the transfer direction of the liner 1 in helical winding. In helical winding, since the liner 1 is reciprocated in the front-rear direction of the FW device 100, the liner 1 may be transferred in the direction of arrow A or in the direction of arrow B.

  The liner 1 is a substantially cylindrical hollow container formed of, for example, a high-strength aluminum material or a polyamide resin. In the liner 1, the pressure resistance is improved by winding the fiber bundle F around the outer peripheral surface 1S. That is, the liner 1 is a base material constituting the pressure vessel. In the following description, unless otherwise specified, the liner 1 means both a state before winding the fiber bundle F and a state in the middle of winding the fiber bundle F. For example, the outer peripheral surface 1S of the liner 1 also means the surface of the wound fiber bundle F.

  The FW device 100 mainly includes a main base 10, a liner transfer device 20, a hoop winding device 30, a helical winding device 40, and a control unit 80. The main base 10 constitutes the basis of the FW device 100. A liner transfer device rail 11 is provided on the upper portion of the main base 10. The liner transfer device 20 is placed on the liner transfer device rail 11. A hoop winding device rail 12 is provided on the main base 10 in parallel with the liner transfer device rail 11. A hoop winding device 30 is placed on the rail 12 for the hoop winding device. With such a configuration, the liner transfer device 20 and the hoop winding device 30 can be moved with respect to the main base 10. The helical winding device 40 is fixed to the main base 10.

  The liner transfer device 20 is a device that rotates the liner 1 around the rotation axis in the direction along the front-rear direction of the FW device 100 and transfers the liner 1 in the front-rear direction of the FW device 100. The liner transfer device 20 mainly includes a base 21 and a liner support portion 22. The driving of the liner transfer device 20 is controlled by the control unit 80.

  The base 21 includes a pair of liner support portions 22. Each liner support portion 22 includes a liner support frame 23 and a support shaft 24. The liner support frame 23 extends upward from the base 21. The support shaft 24 extends from the liner support frame 23 along the front-rear direction of the FW device. The support shaft 24 is rotated in one direction around the axis by a power mechanism (not shown). The support shaft 24 supports both ends of the liner 1 and rotates the liner 1. With such a configuration, the liner transfer device 20 rotates the liner 1 about the support shaft 24 as a rotation axis, and transfers the liner 1 in the front-rear direction of the FW device 100.

  The hoop winding device 30 is a device that hoops the fiber bundle F around the outer peripheral surface 1S of the liner 1. In the hoop winding, the fiber bundle F is wound around the outer peripheral surface 1S of the liner 1 so that the winding angle of the fiber bundle F with respect to the central axis of the liner 1 is approximately 90 degrees. The hoop winding device 30 mainly includes a base 31, a power mechanism 32, a hoop winding device 33, and a yarn hooking device 50. The driving of the hoop winding device 30 is controlled by the control unit 80.

  The base 31 is provided with a power mechanism 32 and a hoop winding device 33. The hoop winding device 33 includes a winding table 34 and a bobbin 71 (71A, 71B, 71C, 71D) (see FIG. 2). A space for inserting the liner 1 is provided in the center of the winding table 34. The bobbins 71 (71 </ b> A, 71 </ b> B, 71 </ b> C, 71 </ b> D) are provided on the winding table 34 and supply the fiber bundle F to the outer peripheral surface 1 </ b> S of the liner 1. The power mechanism 32 rotates the hoop winding device 33 around the central axis of the liner 1.

  In the hoop winding, the position of the liner 1 is fixed, and the hoop winding device 33 is rotated around the central axis of the liner 1 while the hoop winding device 30 is reciprocated along the central axis direction of the liner 1. Thereby, hoop winding is performed. Note that the winding mode of the fiber bundle F can be freely changed by adjusting the moving speed of the hoop winding device 30 and the rotation speed of the winding table 34. The yarn hooking device 50 will be described in detail later.

  The helical winding device 40 is a device that helically winds the fiber bundle F around the outer peripheral surface 1S of the liner 1. In the helical winding, the fiber bundle F is wound around the outer peripheral surface 1S of the liner 1 so that the winding angle of the fiber bundle F becomes a predetermined value (for example, 0 to 60 degrees). The helical winding device 40 mainly includes a base 41 and a helical winding device 42. The driving of the helical winding device 40 is controlled by the control unit 80.

  The base 41 is provided with a helical winding device 42. The helical winding device 42 includes a first helical head 43 and a second helical head 44. A fiber bundle F is supplied to the first helical head 43 and the second helical head 44 from a plurality of bobbins (not shown), and the fiber bundle F is guided to the outer peripheral surface 1S of the liner 1.

  In helical winding, the helical winding device 40 is fixed, and the liner 1 is transferred by the liner transfer device 20 in the direction of the rotation axis while rotating. Thereby, helical winding is performed. In addition, the winding aspect of the fiber bundle F can be freely changed by adjusting the transfer speed and rotation speed of the liner 1.

  Next, the yarn hooking device 50 of the hoop winding device 30 which is a characteristic part of the present invention will be described in detail.

  First, the hoop winding device 30 will be described in detail. As shown in FIG. 2, a bobbin 71 (71 </ b> A, 71 </ b> B, 71 </ b> C, 71 </ b> D), a fiber supply guide 72, and a guide roller 73 are arranged on the winding table 34 of the hoop winding device 30. The bobbins 71 (71 </ b> A, 71 </ b> B, 71 </ b> C, 71 </ b> D) are arranged at equal intervals around the liner 1 inserted through the winding table 34 and supply the fiber bundle F to the liner 1. The guide roller 73 guides the four fiber bundles F from the bobbins 71A, 71B, 71C, 71D together to the fiber supply guide 72. The fiber supply guide 72 supplies the four fiber bundles F collected by the guide roller 73 to the outer peripheral surface 1S of the liner 1.

  The winding table 34 is rotated in the direction of arrow R in FIG. The fiber bundle F guided from the fiber supply guide 72 to the liner 1 is supplied in the direction of the arrow FA that is downstream of the rotation direction of the winding table 34 while being rotated in the direction of the arrow R, and the liner 1 or a yarn hooking device described later. It is wound around 50 holding parts 53. Hereinafter, a position where the fiber bundle F supplied from the fiber supply guide 72 is wound in contact with the liner 1 or the holding unit 53 of the yarn hooking device 50 is referred to as a winding position WP.

  The power mechanism 32 that drives the winding table 34 is connected to the control unit 80, and rotation and stop are controlled based on a signal from the control unit 80. The control unit 80 is connected to a detection unit (not shown) that detects the rotation angle of the winding table 34 and detects the position of the winding table 34. For example, an encoder is used as the detection unit. The control unit 80 can identify the position of the bobbin 71 (71A, 71B, 71C, 71D), the winding position WP of the fiber bundle F, and the like by detecting the position of the winding table 34. Further, the control unit 80 controls the power mechanism 32 while detecting the position of the winding table 34, so that the winding position WP of the fiber supply guide 72 and the fiber bundle F comes to an arbitrary position. It is also possible to stop the rotation of the table 34.

  Next, the yarn hooking device 50 will be described. The yarn hooking device 50 temporarily holds the fiber bundle F when starting the hoop winding so that the fiber bundle F can be wound around the liner 1 from the hoop winding start position. As shown in FIG. 3, the yarn hooking device 50 mainly includes a base 51, a holding table 52, a holding unit 53, and a cutter 54. As shown in FIG. 1, the yarn hooking device 50 has a surface on which the fiber bundle F is wound by the hoop winding device 33, that is, a bobbin 71 (71A, 71B, 71C, 71D), a fiber supply guide 72, and the like. It arrange | positions in the position facing the surface to be performed. The yarn hooking device 50 is placed on the hoop winding device rail 12 and can move relative to the hoop winding device 33.

  The base 51 supports the holding table 52. The base 51 is placed on the hoop winding device rail 12 and can be moved with respect to the main base 10 by a power mechanism (not shown). The power mechanism that moves the base 51 is connected to the control unit 80, and the relative position with respect to the hoop winding device 33 is controlled based on a signal from the control unit 80.

  A holding portion 53 is provided on the surface of the holding table 52 on the hoop winding device 33 side. The holding unit 53 can wind the fiber bundle F with the hoop winding device 33 and temporarily holds the fiber bundle F outside the liner 1 in the radial direction. The holding part 53 includes a plurality of holding members 531. The holding table 52 is provided with an opening 521 through which the liner 1 is inserted, and the plurality of holding members 531 are arranged so as to surround the liner 1 inserted through the opening 521 in the circumferential direction. In this embodiment, six holding members 531 are arranged at equal intervals on the same circumference so as to surround the liner 1. The fiber bundle F is wound around the plurality of holding members 531 outside the liner 1.

  A gap is formed between a pair of adjacent holding members 531. This space constitutes a guide portion 55 that guides the fiber bundle F from the liner 1 to the holding portion 53 in a retracting operation described later. Each holding member 531 is supported by a rail 532 in the holding table 52 and is configured to be movable in the radial direction of the holding table 52. Each holding member 531 can be moved in the radial direction of the holding table 52 by a power mechanism (not shown). The power mechanism that moves each holding member 531 is connected to the control unit 80, and the radial position is controlled based on a signal from the control unit 80. By moving the plurality of holding members 531 in the radial direction of the holding table 52, the holding portion 53 can be enlarged or reduced in the radial direction of the liner 1.

  The cutter 54 cuts the fiber bundle F. The cutter 54 is fixed on the holding table 52 and can be expanded and contracted. The cutter 54 cuts the fiber bundle F (part of the fiber bundle FB, see FIG. 7) spanned from the holding portion 53 to the liner 1 in the first cutting operation described later, and performs the second cutting operation. , The fiber bundle F (part FC of the fiber bundle, see FIG. 12) spanned from the liner 1 to the holding portion 53 is cut. At the time of other standby, it is retracted to a position where it does not contact the fiber bundle F.

  Next, the operation of the hoop winding device 30 in the hoop winding of the FW device 100 configured as described above will be described. The operation of the hoop winding device 30 in the hoop winding includes a winding start operation, a first cutting operation, a winding operation, a retracting operation, and a second cutting operation. The liner 1 used in the present embodiment includes a cylindrical portion 1A having a constant radius and a dome portion 1B provided at both ends of the cylindrical portion 1A (see FIG. 1). The liner 1 is attached to the liner transfer device 20, and the first layer of the hoop is directly wound on the surface of the cylindrical portion 1A of the liner 1 in a state where the fiber layer is not yet formed on the liner 1. . The position at which hoop winding is started with respect to the liner 1 is a start position M that is near the center in the axial direction of the liner 1 (see FIG. 4).

  The control unit 80 is provided with hoop winding conditions, i.e., the moving speed of the hoop winding device 30, the rotational speed of the winding table 34, the number of times the hoop winding device 30 is reciprocated, and the winding conditions such as the moving distance of the hoop winding device 30. Is previously input by the operator. It is assumed that other operating conditions of the hoop winding device 30 are also set in advance. The controller 80 controls the driving of the hoop winding device 30 based on the input winding condition as follows.

  First, the control unit 80 controls the winding start operation. In the winding start operation, before starting the hoop winding around the liner 1, the fiber bundle F is wound around the holding portion 53 of the yarn hooking device 50 by the hoop winding device 33 an appropriate number of times as shown in FIGS. 4 and 5. To temporarily hold the fiber bundle. The end portion of the fiber bundle F is fixed to the holding portion 53 with a tape or the like in advance so as not to come off. The first few turns are wound so that the next fiber bundle F overlaps the fiber bundle F wound below, so that the fiber bundle F does not shift.

  When the fiber bundle F is wound around the holding unit 53, the hoop winding device 33 and the holding unit 53 are brought close to each other so that the winding position WP of the fiber bundle F is on the holding unit 53. Further, the relative distance between the hoop winding device 33 and the yarn hooking device 50 is gradually increased so that the winding position WP of the fiber bundle F gradually moves to the free end side of the holding portion 53. In order to change the relative distance between the hoop winding device 33 and the yarn hooking device 50, only one of the hoop winding device 33 and the yarn hooking device 50 may be moved. The distance may be changed.

  As shown in FIG. 4, the fiber bundle F is wound around the holding portion 53 at a position separated from the start position M where the hoop winding is started around the liner 1, but a position close to the start position M (see FIG. 6). You may go on. Alternatively, the fiber bundle F may be wound around the holding portion 53 while the hoop winding device 33 and the yarn hooking device 50 are brought close to the start position M.

  After winding the fiber bundle F around the holding unit 53 an appropriate number of times, as shown in FIGS. 6 and 7, the control unit 80 sets the winding position WP of the fiber bundle F from the holding unit 53 at the hoop winding start position M. Move to the liner 1 and start hoop winding of the fiber bundle F onto the liner 1. In order to move the winding position WP of the fiber bundle F from the holding portion 53 to the liner 1, the relative distance between the hoop winding device 33 and the yarn hooking device 50 is increased, and the winding position WP of the fiber bundle F is set to the holding portion 53. The liner 1 is moved from the free end. In other words, the winding position WP of the fiber bundle F is lowered from the holding portion 53 onto the liner 1. For example, when the free end of the holding portion 53 is positioned at the hoop winding start position M and only the yarn hooking device 50 is moved in the left direction in FIG. 6, the winding position WP of the fiber bundle F is the start of the hoop winding. It can be moved from the holding portion 53 to the liner 1 at the position M. When the winding position WP of the fiber bundle F moves from the holding portion 53 to the liner 1, the fiber bundle F is bridged from the holding member 531 to the liner 1. The portion is indicated by a thick line in FIG. 7 (part of the fiber bundle FB).

  When the hoop winding is performed several times from the hoop winding start position M, the control unit 80 controls the first cutting operation. In the first cutting operation, the fiber bundle F (part of the fiber bundle FB shown in FIG. 7) spanned from the holding portion 53 to the liner 1 is cut by the cutter 54. Since the first cutting operation is performed when the hoop winding is performed about several times, the fiber bundle F hoop-wound around the liner 1 cannot be unwound even if the first cutting operation is performed. Since the fiber bundle F wound around the holding portion 53 and the fiber bundle F wound around the liner 1 are separated by the first cutting operation, the hoop winding device 33 and the yarn hooking device 50 are separated from each other. It becomes possible to move to a position.

  As shown in FIG. 8, the control unit 80 controls a winding operation for performing the hoop winding of the fiber bundle F around the liner 1. As shown in FIG. 8, the control unit 80 causes the hoop winding device 33 to perform hoop winding based on a winding condition input in advance. For the yarn hooking device 50, the control unit 80 retracts to a retracting position that does not hinder hoop winding by the hoop winding device 33. The fiber bundle F wound around the holding portion 53 is removed at the retracted position.

  As shown in FIGS. 9 and 10, when the hoop winding position WP reaches the end position N (the same position as the start position M), the control unit 80 controls the retreat operation. First, the control unit 80 stops the hoop winding by stopping the rotation of the winding table 34 of the hoop winding device 33. Subsequently, the yarn hooking device 50 is brought close to the hoop winding device 33. When the free end of the holding portion 53 passes through the winding position WP and approaches the hoop winding device 33 side from the winding position WP, the fiber bundle F enters the guide portion 55 of the holding portion 53.

  As shown in FIGS. 11 and 12, the rotation of the winding table 34 of the hoop winding device 33 is resumed in a state where the fiber bundle F enters the guide portion 55 of the holding portion 53, and the winding position of the fiber bundle F is resumed. The WP is moved from the liner 1 to the holding unit 53. In other words, the winding position WP of the fiber bundle F is raised from the liner 1 to the holding portion 53. When the winding position WP of the fiber bundle F moves from the liner 1 to the holding portion 53, the fiber bundle F is bridged from the liner 1 to the holding member 531. The portion is indicated by a thick line in FIG. 12 (part of the fiber bundle FC). The fiber bundle F is held in the holding portion 53 by winding the fiber bundle F around the holding portion 53 an appropriate number of times. The first few turns are wound so that the next fiber bundle F overlaps the fiber bundle F wound below, so that the fiber bundle F does not shift.

  When the fiber bundle F is wound around the holding unit 53 an appropriate number of times from the end position N of the hoop winding, the control unit 80 controls the second cutting operation. In the second cutting operation, the fiber bundle F (a part FC of the fiber bundle shown in FIG. 12) spanned from the liner 1 to the holding portion 53 is cut by the cutter 54. Since the second cutting operation is performed when the fiber bundle F is wound around the holding unit 53 an appropriate number of times, the fiber bundle F wound around the holding unit 53 cannot be unwound even if the second cutting operation is performed. Since the fiber bundle F wound around the holding portion 53 and the fiber bundle F wound around the liner 1 are separated by the second cutting operation, the hoop winding device 33 and the yarn hooking device 50 are separated from each other. It becomes possible to move to a position. Further, since the fiber bundle F is wound around the holding portion 53 of the yarn hooking device 50 by an appropriate number of times by the hoop winding device 33 and the fiber bundle is temporarily held, the next hoop winding is continued in this state. The operation can be started.

  The FW device 100 according to the present embodiment described above has the following effects.

  When starting the hoop winding, the winding position WP of the fiber bundle F is moved from the holding portion 53 to the liner 1 at the hoop winding start position M, and the winding start of starting the hoop winding of the fiber bundle F around the liner 1 is started. Perform the action. When ending the hoop winding, at the end position N of the hoop winding, the winding position WP of the fiber bundle F is moved from the liner 1 to the holding portion 53, and the fiber bundle F is wound around the holding portion 53 to hold the fiber bundle F. The evacuation operation is performed. Whether or not a fiber layer is formed on the liner 1 in order to move the winding position WP of the fiber bundle F from the holding portion 53 to the liner 1 at the start position M of the hoop winding when starting the hoop winding as described above. Regardless of this, when hoop winding is started, sweet winding or combination winding of the fiber bundle F is not required, and the time required for hoop winding can be shortened. In addition, since sweet winding or combination winding of the fiber bundle F is unnecessary, the usage amount of the fiber bundle F can be reduced, and the manufacturing cost can be reduced.

  In the winding start operation and the retracting operation, the relative position between the hoop winding device 33 and the holding portion 53 is changed in the axial direction of the liner 1. Thereby, the winding start operation and the evacuation operation can be performed with few operations.

  The holding portion 53 includes a plurality of holding members 531 arranged in the circumferential direction of the liner 1, and the holding portion 53 can be enlarged or reduced by moving each holding member 531 in the radial direction of the liner 1. For this reason, it can respond easily to the liner 1 from which a radius differs.

  The holding portion 53 includes a guide portion 55 that guides the fiber bundle F from the liner 1 to the holding portion 53 in the retracting operation. For this reason, the fiber bundle F can be reliably wound around the holding part 53 in the retracting operation.

Although the embodiments of the present invention have been described above, the present invention is not limited to the above-described embodiments, and various modifications can be made.
For example, although the yarn hooking device 50 is separated from the hoop winding device 33, the holding unit 53 may be provided in the hoop winding device 33.

  Although the holding part 53 is configured by the columnar holding member 531, the present invention is not limited to this, and the holding part 53 may be cylindrical, for example. In this case, a portion that can guide the fiber bundle F onto the holding portion 53, such as a slit-like space with an open end, may be provided as the guide portion 55.

  In this embodiment, the FW device 100 including the hoop winding device 30 and the helical winding device 40 has been described. However, the present invention may be applied to a FW device dedicated to hoop winding.

DESCRIPTION OF SYMBOLS 1 Liner 1S Outer peripheral surface 10 Main base 20 Liner transfer apparatus 30 Hoop winding apparatus 33 Hoop winding apparatus 34 Winding table 40 Helical winding apparatus 50 Yarn hanging apparatus 51 Base 52 Holding table 53 Holding part 54 Cutter 55 Guide part 80 Control Part 100 Filament winding device F Fiber bundle

Claims (5)

A hoop winding device for inserting the liner and a holding portion are provided.
A filament winding method for performing a hoop winding process,
The hoop winding step
By winding a fiber bundle in the holding portion and the hoop winding device in the radial direction of the outside of the liner, a first step of temporarily holding the fiber bundle,
By moving the holding portion relative to the hoop winding device at the hoop winding start position, the winding position of the fiber bundle is moved from the holding portion to the liner, and the fiber bundle on the liner is moved. A second step of starting hoop winding;
A third step of cutting a fiber bundle spanned from the holding portion to the liner;
A fourth step of hoop winding a fiber bundle on the liner;
At the end position of the hoop winding, the holding part moves relative to the hoop winding device, so that the winding position of the fiber bundle is moved from the liner to the holding part, and the fiber bundle is transferred to the holding part. A fifth step of winding and holding the fiber bundle;
A sixth step of cutting a fiber bundle spanned from the liner to the holding portion;
A filament winding method comprising: A hoop winding device for inserting the liner and a holding portion are provided.
A filament winding apparatus winds the fiber bundle to the liner by the hoop winding device,
The hoop winding device have rows hoop winding of the fiber bundle to the liner,
The holding part is configured to be capable of winding a fiber bundle by the hoop winding device , and to temporarily hold the fiber bundle on the outer side in the radial direction of the liner ,
A cutter for cutting the fiber bundle;
After winding the fiber bundle around the holding portion , the holding portion moves relative to the hoop winding device at the hoop winding start position, so that the fiber bundle winding position is changed from the holding portion to the liner. Winding start operation to start the hoop winding of the fiber bundle around the liner,
A first cutting operation of cutting a fiber bundle spanned from the holding unit to the liner with the cutter;
A winding operation of performing a hoop winding of a fiber bundle on the liner;
At the end position of the hoop winding, the holding part moves relative to the hoop winding device, so that the winding position of the fiber bundle is moved from the liner to the holding part, and the fiber bundle is transferred to the holding part. Retraction operation to wind and hold the fiber bundle,
A second cutting operation for cutting a fiber bundle spanned from the liner to the holding unit with the cutter, and a control unit for controlling the second cutting operation;
A filament winding apparatus characterized by comprising: The filament winding apparatus according to claim 2,
In the winding start operation and the retracting operation, the control unit controls the relative position of the holding unit to change in the axial direction of the liner by moving relative to the hoop winding device. A filament winding apparatus characterized by performing. The filament winding apparatus according to any one of claims 2 and 3,
The holding portion is composed of a plurality of members arranged in the circumferential direction of the liner, and the holding portion can be enlarged or reduced by moving the plurality of members in the radial direction of the liner. Characteristic filament winding device. The filament winding apparatus according to any one of claims 2 to 4,
The filament winding apparatus, wherein the holding unit includes a guide unit that guides a fiber bundle from the liner to the holding unit in the retracting operation.

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