JP5903398B2 - Filament winding equipment - Google Patents

Description

  The present invention relates to a technique of a filament winding apparatus provided with a helical winding device that simultaneously winds a plurality of fiber bundles around an outer peripheral surface of a liner by helical winding.

  A filament winding apparatus (hereinafter, appropriately abbreviated as “FW apparatus”) that forms a reinforcing layer by winding a fiber bundle around an outer peripheral surface of a liner is known. The FW device repeatedly performs hoop winding by the hoop winding device and helical winding by the helical winding device alternately on the liner. When the winding of the fiber bundle is completed, the liner is discharged and the fiber bundle is wound around the next newly installed liner. At the time of replacement of the liner, processing of the end portion of the fiber bundle of the helical winding device (hereinafter sometimes referred to as fiber end) becomes a problem.

  Patent Document 1 discloses a technique for efficiently processing a fiber end of a helical winding device. Specifically, the support shaft of the liner and a drive shaft that applies a driving force to the liner are connected via a yarn delivery ring that can be divided into two, and the fiber bundle after helical winding is wound around the delivery ring. The helically wound fiber ends are suppressed from above the fiber bundle wound around the delivery ring by hoop winding, and then the fiber bundle is cut with a cutter at the split part of the yarn delivery ring, and the fiber bundle is completely wound and the helical winding. Separate the device. Even if the fiber bundle is cut, the fiber end on the helical winding device side is wound around the delivery ring and does not come apart.

  According to this technique, since the fiber ends after 100 or more helical windings are wound and fixed around the delivery ring, when the fiber bundle is started to be wound around the next liner, the operator manually holds the helically wound fiber ends. Work such as sticking to the liner becomes unnecessary.

JP 2009-39951 A

However, the following problems have been found in the fiber end processing using the yarn delivery ring of Patent Document 1 through actual machine verification by the inventor of the present application.
(1) The cutting of the fiber bundle by the cutter is an operation of pressing the cutter against the yarn delivery ring, so that there is a possibility of a cutting error and there is a cutter spillage.
(2) After helical winding on the delivery ring, the fiber end of the helical winding is suppressed by hoop winding. However, if the amount of hoop winding is small, the fiber end of the helical winding may be detached from the delivery ring due to tension.
(3) When installing the next liner, the free end of the fiber bundle cut by the cutter may bite into the connecting part between the support shaft of the liner and the drive shaft, and the installation of the next liner becomes incomplete. there is a possibility.
(4) Depending on the shape of the liner, it is necessary to unwind the bundle of fibers more than necessary on the support shaft of the liner and the yarn delivery ring, and a large amount of waste (discarded yarn) is generated.

  The present invention has been made to solve the above problems. An object of the present invention is to provide a filament winding apparatus capable of appropriately processing the fiber ends of a helical winding device when a liner is replaced.

  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 filament winding apparatus of the first invention is a filament winding apparatus for winding a fiber bundle around an outer peripheral surface of a liner,
The main base,
A liner transfer device that supports the liner and rotates around the axis, and reciprocates in the axial direction of the liner with respect to the main base;
From a plurality of fiber guides installed on the helical winding head, having a helical winding head fixed to the main base, and rotating the liner around the axis while moving the liner transfer device in the axial direction of the liner A helical winding device in which each fiber bundle is drawn out, and a plurality of fiber bundles are simultaneously wound around the outer peripheral surface of the liner;
A collar portion having a plurality of pins that are movable forward and backward in the axial direction of the liner with respect to a plurality of fiber bundles drawn from a plurality of fiber guides and rotatable around the axis of the liner, and A yarn end processing device having a cutter disposed radially inward of the section;
With
After the helical winding on the liner is completed, the yarn end processing apparatus performs an insertion operation of positioning the plurality of pins of the collar portion between the plurality of fiber bundles drawn from the plurality of fiber guides. Rotating relative to the helical winding head about the shaft center to perform a cocoon winding operation to wind a plurality of fiber bundles around the outer periphery of the heel part. After the cocoon winding operation, a plurality of fiber bundles are cut with a cutter. 1 cutting operation is performed.

The filament winding apparatus of the second invention is the filament winding apparatus of the first invention,
Before starting the helical winding on the liner newly installed in the liner transfer device, the yarn end processing device rotates the collar part relative to the helical winding head around the axis of the liner, A preparatory operation is performed to wind the fiber bundle of the book, and after the preparatory operation, a transition operation is performed to shift the winding position of the plurality of fiber bundles from the buttock to the support shaft of the liner. A second cutting operation for cutting the fiber bundle of the book is performed.

A filament winding apparatus according to a third aspect of the invention is the filament winding apparatus according to the first or second aspect of the invention,
The plurality of fiber guides are installed on the helical winding head radially and equally spaced toward the outer peripheral surface of the liner,
A plurality of pins on the buttocks are installed at regular intervals around the axis of the liner,
In the insertion operation, the plurality of fiber bundles are inserted into the plurality of pins by an equal number.

A filament winding apparatus according to a fourth invention is the filament winding apparatus according to any one of the first to third inventions,
The pins of the buttock are arranged on a circumference around the axis of the liner,
The cutter is configured to rotate about the axis of the liner on the radially inner side of the flange with respect to the plurality of pins.

A filament winding apparatus of a fifth invention is the filament winding apparatus of any one of the first to fourth inventions,
The cutter is movable forward and backward in the axial direction of the liner with respect to the collar, and when cutting a plurality of fiber bundles, the cutter advances to the pin side of the collar and rotates one or more times around the axis of the liner. To cut a plurality of fiber bundles.

A filament winding apparatus of a sixth invention is the filament winding apparatus of any one of the first to fifth inventions,
When it has a detection unit for detecting the position of the cutter and detects that the cutter has rotated one or more times around the axis of the liner, it is determined that all of the plurality of fiber bundles drawn from the helical winding head have been cut.

A filament winding apparatus of a seventh invention is the filament winding apparatus of any one of the first to sixth inventions,
The cutter includes a round blade and a holding member having a guide for guiding the fiber bundle to the round blade while rotatably holding the round blade.

The filament winding apparatus of the eighth invention is the filament winding apparatus of any one of the first to seventh inventions,
The pin includes a barrel portion that gradually tapers toward the distal end side, and a head portion provided on the distal end side of the barrel portion, and prevents the fiber bundle inserted between the plurality of pins from dropping off.

According to the filament winding apparatus of the present invention, after the helical winding around the liner, the yarn end processing apparatus performs the insertion operation, the kite winding operation, and the first cutting operation. For this reason, there are the following effects.
(1) A cutter is arrange | positioned in the radial direction inner side of a collar part with respect to several pins, and after a several fiber bundle is wound around a collar part, a several fiber bundle is cut | disconnected with a cutter. For this reason, it is difficult to cause a mistake in cutting the fiber bundle. Further, since the cutter blade is not pressed against the thread delivery ring or the like and cut, the blade does not spill.
(2) When a plurality of fiber bundles are wound around the buttocks, the lower fiber bundle is tightened by the tension of the upper fiber bundle. For this reason, the fiber end of the helical winding device can be securely held without hoop winding.
(3) The plurality of fiber bundles cut by the cutter are held in the collar portion. For this reason, the free end portion of the fiber bundle does not inadvertently bite into the connecting portion between the support shaft of the liner and the drive shaft that applies a driving force to the liner, and the next liner can be reliably installed.
(4) By adjusting the position of the yarn end processing device in accordance with the shape of the liner, the sweet wrapping of the fiber bundle around the support shaft of the liner can be minimized, and waste (discarded yarn) can be suppressed. it can.
From the above, it is possible to provide a filament winding apparatus that can appropriately process the fiber ends of the helical winding device when the liner is replaced.

1 is a side view of an FW device 100 according to a first embodiment. The perspective view of the thread end processing apparatus 51. FIG. The perspective view which expanded a part of the collar part 60 of the yarn end processing apparatus 51, and the cutter 70. FIG. (A) Enlarged perspective view of pin 67 (B) Enlarged perspective view of pin 67 of another example. The perspective view which shows the components structure of the cutter. The perspective view of the cutter 70. FIG. The side view of FW device 100 which shows the state where winding of fiber bundle F to liner 1 (L1) was completed. The side view of FW device 100 showing insertion operation. The side view of FW device 100 which shows a kite winding operation. The side view of FW device 100 showing the 1st cutting operation. The side view of the FW apparatus 100 which shows the state after discharging | emitting liner 1 (L1) in which winding of the fiber bundle F was complete | finished, and replacing | exchanging for new liner 1 (L2). The side view of FW device 100 showing preparation operation. The side view of FW device 100 which shows transfer operation. The side view of FW device 100 showing the 2nd cutting operation.

  A filament winding apparatus (FW apparatus) 100 according to an embodiment of the present invention will be described with reference to the drawings. First, the whole structure of the filament winding apparatus (FW apparatus) 100 is demonstrated using FIG. The FW device 100 repeats the hoop winding performed by the hoop winding device 30 and the helical winding performed by the helical winding device 40 alternately on the liner 1 to thereby obtain the fiber bundle F in which the outer peripheral surface 1S of the liner 1 is impregnated with resin. Wrap.

  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. In the following description, the front end side of the arrow A is the front side and the base end side of the arrow A is the rear side for convenience.

  The liner 1 is a base material constituting a pressure vessel. The liner 1 is a substantially cylindrical hollow body formed of, for example, a high-strength aluminum material or a polyamide-based resin. In the liner 1, the pressure resistance is improved by winding a plurality of fiber bundles F around the outer peripheral surface 1 </ b> S and forming a plurality of fiber layers. In the following description, 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. In the following description, the liner 1 in which the winding of the fiber bundle F has been completed may be referred to as a liner L1, and the liner 1 that newly winds the fiber bundle F may be referred to as a liner L2.

  As shown in FIG. 1, the FW device 100 includes a main base 10, a liner transfer device 20, a hoop winding device 30, a helical winding device 40, and a control unit 90.

  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. A liner transfer device 20 is placed on the liner transfer device rail 11. A hoop winding device rail 12 is provided on the upper portion of the main base 10 in parallel to the liner transfer device rail 11. A hoop winding device 30 is placed on the rail 12 for the hoop winding device. The liner transfer device 20 and the hoop winding device 30 can move with respect to the main base 10. The helical winding device 40 is fixed to the main base 10.

  The liner transfer device 20 supports the liner 1, rotates the liner 1 about the axis, and reciprocates in the axial direction of the liner 1 with respect to the main base 10. The liner transfer device 20 rotates the liner 1 with the front-rear direction of the FW device 100 as the central axis. Further, the liner transfer device 20 transfers the liner 1 in the front-rear direction of the FW device 100. The liner transfer device 20 includes a first base 21, a liner support frame 23, and a rotation shaft 24.

  A pair of liner support frames 23 are provided on the upper portion of the first base 21. A rotation shaft 24 extends from the liner support frame 23 in the front-rear direction. The liner 1 is attached to the rotary shaft 24 and rotated in one direction by the power mechanism 25. A support shaft 26 is attached to the liner 1, and is connected to the rotating shaft 24 by a connecting portion 27. The driving of the liner transfer device 20 is controlled by the control unit 90. The liner transfer device 20 is provided with a yarn end processing device 50. The yarn end processing device 50 will be described in detail later.

  The hoop winding device 30 forms a fiber layer by simultaneously winding a plurality of fiber bundles F around the outer peripheral surface 1S of the liner 1. The hoop winding device 30 performs hoop winding in which the winding angle of the fiber bundle F is substantially perpendicular to the front-rear direction of the FW device 100. The hoop winding device 30 includes a second base 31, a power mechanism 32, and a hoop winding head 34. The driving of the hoop winding device 30 is controlled by the control unit 90.

  The second base 31 is provided with a hoop winding head 34 that is rotated by a power mechanism 32. The hoop winding head 34 has an opening (not shown) through which the liner 1 is inserted at the center. A plurality (four in this embodiment) of bobbins B are arranged around the opening. From each bobbin B, the fiber bundle F is supplied to the outer peripheral surface 1S of the liner 1. The power mechanism 32 rotates the hoop winding head 34 around the central axis of the liner 1.

  In the hoop winding, the hoop winding head 34 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. The liner 1 is in a stationary state, does not move in the axial direction, and does not rotate. That is, the hoop winding device 30 rotates the hoop winding head 34 relative to the liner 1 to simultaneously wind a plurality of fiber bundles F on the liner 1. The hoop winding device 30 can change the winding mode of the fiber bundle F by adjusting the moving speed with respect to the liner 1 and the rotation speed of the hoop winding head 34.

  The helical winding device 40 simultaneously winds a plurality of fiber bundles F around the outer peripheral surface 1S of the liner 1 to form a fiber layer. The helical winding device 40 performs helical winding in which the winding angle of the fiber bundle F is a predetermined value (for example, 0 to 60 degrees) with respect to the front-rear direction of the FW device 100. The helical winding device 40 includes a third base 41, a first helical winding head 43, and a second helical winding head 44. The helical winding device 40 is fixed to the main base 10. The driving of the helical winding device 40 is controlled by the control unit 90.

  The third base 41 has a first helical winding head 43 and a second helical winding head 44. A fiber bundle F is supplied to the first helical winding head 43 and the second helical winding head 44 from a plurality of bobbins (not shown). The plurality of fiber bundles F are guided to the outer peripheral surface 1S of the liner 1. Each of the first helical winding head 43 and the second helical winding head 44 is provided with a plurality of fiber guides (not shown) radially and equally spaced toward the outer peripheral surface 1S of the liner 1. A plurality of fiber bundles F are guided to the outer peripheral surface 1S of the liner 1 by a plurality of nozzles. In this embodiment, 90 fiber guides are provided in each of the first helical winding head 43 and the second helical winding head 44. For this reason, 180 fiber bundles F are guided to the outer peripheral surface 1 </ b> S of the liner 1.

  The liner transfer device 20 rotates the liner 1 around the axis while moving the liner 1 in the axial direction of the liner 1. By rotating the liner 1, the fiber bundles F are pulled out from the plurality of fiber guides of the first helical winding head 43 and the second helical winding head 44, respectively, and a plurality of bundles (in this embodiment) are formed on the outer peripheral surface 1 </ b> S of the liner 1. Then, 180 fiber bundles F are wound at the same time. The winding mode of the fiber bundle F can be changed by adjusting the transfer speed and rotation speed of the liner 1.

  Next, the yarn end processing device 50 which is a characteristic part of the present invention will be described in detail. The yarn end processing device 50 replaces the liner 1 (L1) after the winding of the fiber bundle F with a new liner 1 (L2), and starts helical winding on the liner 1 (L2). Is a device that holds the fiber bundle F (fiber end) and performs processing of the fiber end. As shown in FIG. 1, the yarn end processing device 50 is provided on the liner support frame 23. The yarn end processing device 50 includes a collar portion 60 and a cutter 70.

  The collar portion 60 temporarily winds and holds the fiber bundle F (fiber end) of the helical winding device 40. The flange portion 60 is arranged so that the rotating shaft 24 of the liner transfer device 20 and the support shaft 26 of the liner 1 are inserted inside. The collar portion 60 is configured to rotate together with the liner 1 about the axis of the liner 1 (rotation directions R1 and R2 shown in FIG. 2). The collar unit 60 is connected to the first drive device 51. The collar portion 60 is configured to be movable forward and backward in the direction of the axis of the liner 1 (the rotation shaft 24 of the liner transfer device 20 and the support shaft 26 of the liner 1) by the first driving device 51 (direction D1 shown in FIG. 2). , D2). That is, the collar portion 60 is movable in the axial direction of the liner 1 with respect to the plurality of fiber bundles F drawn from the plurality of fiber guides of the helical winding device 40. The first drive device 51 is connected to the control unit 90, and the advance / retreat and stop of the collar unit 60 are controlled based on a signal from the control unit 90. Note that the collar portion 60 is configured to be rotatable with respect to the liner 1, and a second driving device (not shown) is separately provided so that the collar portion 60 is relatively rotated around the axis of the liner 1. Good.

  As shown in FIG. 2, the flange portion 60 includes a first frame portion 61, a second frame portion 62, and a third frame portion 63. The 1st frame part 61, the 2nd frame part 62, and the 3rd frame part 63 are each annular members. The second frame portion 62 has a slightly larger diameter than the first frame portion 61, and the third frame portion 63 has a slightly larger diameter than the second frame portion 62. The first frame portion 61 and the second frame portion 62 are connected by a plurality of winding rods 65. The plurality of winding rods 65 are portions where the fiber bundle F (fiber end) of the helical winding device 40 is temporarily wound. The winding rods 65 are arranged at equal intervals in the circumferential direction of the first frame portion 61 and the second frame portion 62. The second frame portion 62 and the third frame portion 63 are connected by a plurality of connecting rods 66. The winding rod 65 is arranged at equal intervals in the circumferential direction of the second frame portion 62 and the third frame portion 63.

  The first frame portion 61 is provided with a plurality of pins 67. The plurality of pins 67 rotate around the axis of the liner 1 together with the collar 60 rotating around the axis of the liner 1. The pin 67 is a member that is inserted between a plurality of fiber bundles F drawn from a plurality of fiber guides of the helical winding device 40 to engage the fiber bundle F and create a trigger for winding the fiber bundle F around the collar portion 60. .

  The plurality of pins 67 are arranged toward the helical winding device 40 along the axial direction of the liner 1. The pins 67 are arranged on the first frame portion 61 so as to be equally spaced on the circumference around the axis of the liner 1. In the present embodiment, 45 pins 67 are provided on the first frame portion 61. By arranging the pins 67 at equal intervals, when the plurality of pins 67 and the plurality of fiber bundles F are engaged, the fiber bundles F are inserted between the plurality of pins 67 by equal numbers. . In the present embodiment, since 45 pins 67 are arranged for 180 fiber bundles F, every four fiber bundles F are inserted between the pins 67.

  As shown in FIG. 4A, the pin 67 includes a body portion 671 that gradually tapers toward the distal end side, and a head portion 672 provided on the distal end side of the body portion 671. The head portion 672 prevents the fiber bundle F engaged with the pin 67 from dropping off. The shape of the pin 67 is not limited to this. For example, as shown in FIG. 4B, an engaging portion 673 may be formed on the head 672.

  As shown in FIGS. 2 and 3, the cutter 70 cuts a plurality of fiber bundles F between the flange portion 60 and the support shaft 26 of the liner 1. The cutter 70 is provided in a fourth frame portion 64 that is disposed inside the first frame portion 61 of the collar portion 60.

  The fourth frame portion 64 is connected to a third drive device and a fourth drive device (not shown). The fourth frame portion 64 can be moved forward and backward in the axial direction of the liner 1 with respect to the collar portion 60 by the third driving device (directions D3 and D4 shown in FIGS. 2 and 3). For this reason, the cutter 70 can advance and retreat between a standby position retracted in the axial direction of the liner 1 with respect to the collar portion 60 and a cutting position advanced in the axial direction of the liner 1. The standby position is a state of being positioned closer to the second frame portion 62 than the first frame portion 61 in the axial direction of the liner 1 (the direction D4 side of the position shown in FIGS. 2 and 3). The operating position is a state in which a guide 711 of a cutter 70 described later is positioned on the radially inner side of the flange portion 60 with respect to the plurality of pins 67 (position shown in FIGS. 2 and 3).

  The fourth frame portion 64 is rotatable about the axis of the liner 1 with respect to the collar portion 60 by the fourth driving device (rotation direction R3 shown in FIGS. 2 and 3). For this reason, the cutter 70 is rotatable about the axis of the liner 1 on the radially inner side of the flange portion 60 with respect to the plurality of pins 67.

  As shown in FIG. 3, when cutting a plurality of fiber bundles F with the cutter 70, the cutter 70 advances from the standby position to the operating position (the position shown in FIG. 3) on the pin 67 side of the flange portion 60. A plurality of fiber bundles F are cut by rotating around the axis of the liner 1 one or more times in the R3 direction. The cutter 70 moves backward from the operating position to the standby position except when cutting a plurality of fiber bundles F. The third drive device and the fourth drive device are connected to the control unit 90, and advance / retreat, rotation, and stop of the cutter 70 are controlled based on a signal from the control unit 90.

  As shown in FIGS. 5 and 6, the cutter 70 includes a cutter main body 71 as a holding member, a first holding portion 72, a second holding portion 73, and a round blade 74. The first holding part 72 and the second holding part 73 are sandwiched so that the round blade 74 is rotatable. In the first holding part 72 and the second holding part 73, guides 721 and 731 for guiding the fiber bundle F to the round blade 74 are formed, respectively. The first holding part 72 and the second holding part 73 that sandwich the round blade 74 are attached to the cutter main body 71. The presser portion 712 of the cutter main body 71 is urged in a direction to sandwich the first holding portion 72 and the second holding portion 73. A guide 711 corresponding to the guides 721 and 731 is also formed on the cutter main body 71. The cutter main body 71 is attached to the fourth frame portion 64.

  The flange 60 is provided with a detection unit (not shown) that detects the position of the cutter 70. The detection unit is connected to the control unit 90. When the control unit 90 detects that the cutter 70 has rotated one or more rounds about the axis of the liner 1 based on a detection signal from the detection unit, the control unit 90 is pulled out from a plurality of fiber guides of the helical winding device 40. It is determined that all the fiber bundles F have been cut.

  Next, the operation of the yarn end processing device 50 when the liner 1 (L1) that has finished winding the fiber bundle F is replaced with a new liner 1 (L2) in the FW device 100 configured as described above will be described. It is assumed that the winding conditions of the FW device 100 including the operation of the yarn end processing device 50 are input to the control unit 90 in advance. The control unit 90 controls the driving of the FW device 100 as follows based on the input winding condition. 7 to 14, the illustration and description of the operation of the hoop winding device 30 are omitted to simplify the illustration and description.

  FIG. 7 shows a state where the winding of the fiber bundle F around the liner 1 is completed. The liner 1 (L1) is in a state where the rotation is stopped. The plurality of fiber bundles F are wound inward from the outer diameter of the flange portion 60. In the present embodiment, the plurality of fiber bundles F of the helical winding device 40 are wound around the support shaft 26 of the liner 1. A position where the plurality of fiber bundles F guided from the helical winding device 40 are wound in contact with the outer peripheral surface 1S of the liner 1 or the support shaft 26 of the liner 1 is defined as a winding position WP.

(Insertion operation)
In this state, the FW device 100 performs the insertion operation shown in FIG. In the insertion operation, the first driving device 51 moves the collar portion 60 in the direction D1, and positions the plurality of pins 67 of the collar portion 60 between the plurality of fiber bundles F drawn from the plurality of fiber guides. By inserting, the plurality of fiber bundles F are inserted between the plurality of pins 67 by an equal number. During the insertion operation, the rotation of the liner 1 and the collar portion 60 is stopped.

(Tailor winding operation)
After the insertion operation, the FW device 100 performs the kite winding operation shown in FIG. In the cocoon winding operation, the liner 1 and the heel portion 60 are rotated about the axis to draw out a plurality of fiber bundles F, and the plurality of fiber bundles F are wound around the outer periphery of the heel portion 60. In this embodiment, the collar portion 60 and the liner 1 are synchronized and rotated about the axis of the liner 1 in the R1 direction. Then, in the insertion operation, since the plurality of fiber bundles F are inserted between the plurality of pins 67, the plurality of fiber bundles F are wound on the plurality of winding rods 65 of the flange portion 60. Go. At the same time, the first driving device 51 gradually advances the collar portion 60 in the axial direction of the liner 1 so that the fiber bundle F overlaps the fiber bundle F wound downward. When the collar portion 60 is configured to be rotatable with respect to the liner 1, the fiber bundle F is wound around the rod 65 by rotating the collar portion 60 with respect to the liner 1 by a second driving device (not shown). You may make it wind up. In this case, if the rotation of the liner 1 (L1) and the collar portion 60 is not synchronized, the fiber bundle F wound around the liner 1 (L1) is loosened or cut. For this reason, the collar part 60 and the liner 1 (L1) are rotated in synchronization.

(First cutting operation)
After winding a plurality of fiber bundles F around the heel portion 60 by the heel winding operation, the first cutting operation shown in FIG. 10 is performed. In the first cutting operation, the plurality of fiber bundles F are cut by the cutter 70. The first cutting operation is performed in a state where the advancement / retraction of the collar part 60 is stopped and the rotation of the liner 1 (L1) and the collar part 60 is also stopped. The cutter 70 advances in the axial direction (D3 direction) of the liner 1 with respect to the collar portion 60 and moves from the standby position to the cutting position by the third driving device. The cutter 70 is rotated in the R3 direction about the axial center of the liner 1 with respect to the collar portion 60 by the fourth driving device while maintaining the cutting position. When the cutter 70 rotates about the axis of the liner 1 with respect to the collar portion 60, the plurality of fiber bundles F abut against the guide 711 and are guided by the round blade 74 and cut. The plurality of fiber bundles F are cut between the flange portion 60 and the support shaft 26 of the liner 1.

  When the control unit 90 detects from the detection signal from the detection unit that the cutter 70 has rotated more than one turn around the axis of the liner 1, all of the plurality of fiber bundles F drawn from the helical winding device 40 are cut. Judge that Thereafter, the liner 1 (L1) after the winding of the fiber bundle F is discharged, and the next new liner 1 (L2) is newly installed in the liner transfer device 20 of the FW device 100 as shown in FIG. The Detailed description of the replacement of the liner 1 is omitted.

(Preparation operation)
As shown in FIG. 12, a preparatory operation is performed before starting helical winding for the next new liner 1 (L2). In the preparation operation, the winding position WP of the fiber bundle F is moved to the end portion of the flange portion 60. Specifically, the preparatory operation is performed by rotating the collar part 60 and the liner 1 (L2) about the axis of the liner 1 (L2) and moving the collar part 60 in the axial direction of the liner 1 (L2). The winding position WP of the fiber bundle F is moved to the end portion of the flange 60 while the plurality of fiber bundles F are gently wound around the outer periphery. Sweet winding refers to winding of the fiber bundle F when moving the winding position WP of the fiber bundle F.

(Migration action)
After the preparatory operation, a transition operation is performed as shown in FIG. In the transfer operation, the winding position WP of the fiber bundle F is transferred from the flange 60 to the support shaft 26 of the liner 1. After the transfer operation, the liner 1 (L2) is rotated about the axis of the liner 1 (L2) and moved in the axial direction of the liner 1 (L2), whereby a plurality of fibers are formed on the support shaft 26 of the liner 1. Wind the bundle F. At this time, the collar part 60 rotates together with the liner 1, and the advancing and retreating of the collar part 60 is continued.

(Second cutting operation)
After the transition operation, the second cutting operation is performed as shown in FIG. In the second cutting operation, a plurality of fiber bundles F are cut by the cutter 70. The second cutting operation is performed after the plurality of fiber bundles F are wound around the heel portion 60 by the heel winding operation. In the second cutting operation, a plurality of fiber bundles F are cut by the cutter 70. The cutter 70 advances in the axial direction (D3 direction) of the liner 1 with respect to the collar portion 60 and moves from the standby position to the cutting position by the third driving device. The cutter 70 is rotated in the R3 direction about the axial center of the liner 1 with respect to the collar portion 60 by the fourth driving device while maintaining the cutting position. When the cutter 70 rotates about the axis of the liner 1 with respect to the collar portion 60, the plurality of fiber bundles F abut against the guide 711 and are guided by the round blade 74 and cut. The plurality of fiber bundles F are cut between the flange portion 60 and the support shaft 26 of the liner 1. After the second cutting operation, the advancement / retraction of the buttocks 60 stops.

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

According to the FW device 100, after the helical winding on the liner 1, the yarn end processing device 50 performs the insertion operation, the kite winding operation, and the first cutting operation. For this reason, there are the following effects.
(1) The cutter 70 is arranged on the radially inner side of the collar portion 60 with respect to the plurality of pins 67, and after the plurality of fiber bundles F are wound around the collar portion 60, the plurality of fiber bundles F are collected by the cutter 70. Disconnect. For this reason, the cutting mistake of the fiber bundle F does not occur easily. Further, since the blade of the cutter 70 is not structured to be pressed against the yarn delivery ring or the like, cutting of the blade does not occur.
(2) When a plurality of fiber bundles F are wound around the collar portion 60, the lower fiber bundle F is tightened by the tension of the upper fiber bundle F. For this reason, the fiber end of the helical winding device 40 can be securely held without hoop winding.
(3) The plurality of fiber bundles F cut by the cutter 70 are held by the flange portion 60. Therefore, the free end portion of the fiber bundle F does not inadvertently bite into the connecting portion 27 between the support shaft 26 of the liner 1 and the rotary shaft 24 that applies driving force to the liner 1, and the next liner 1 (L2) Can be reliably installed.
(4) By adjusting the position of the yarn end processing device 50 in accordance with the shape of the liner 1, the sweet wrapping of the fiber bundle F around the support shaft 26 of the liner 1 can be minimized, and waste (discarded yarn) ) Can be suppressed.
As described above, when the liner 1 is replaced, the fiber end of the helical winding device 40 can be appropriately processed.

  According to the FW device 100, the yarn end processing device 50 performs a preparation operation, a transition operation, and a second cutting operation before starting helical winding on the liner 1 (L2) newly installed in the liner transfer device 50. . For this reason, when the winding of the fiber bundle F around the liner 1 (L2) is completed, the fiber end of the helical winding device 40 is held by the yarn end processing device 50, and the helical of the next liner 1 (L2) is kept in that state. Winding can be started. Therefore, when starting to wind the fiber bundle F around the next liner 1 (L2), the operator does not need to manually attach the helically wound fiber end to the liner 1 (L2).

  According to the FW device 100, the plurality of pins 67 of the collar portion 60 are installed at equal intervals around the axis of the liner 1, and the plurality of fiber bundles F are equally arranged between the plurality of pins 67 in the insertion operation. Inserted one by one. For this reason, the fiber end of the helical winding device 40 is uniformly wound around the collar portion 60 without being biased and is reliably held. Further, when starting helical winding around the next liner 1 (L2), since the fiber ends are uniformly wound around the collar portion 60, the fiber bundle F is fed from the collar portion 60 to the support shaft 26 of the liner 1 and the liner. When shifting to helical winding to 1, winding abnormality hardly occurs.

  According to the FW device 100, the plurality of pins 67 of the flange portion 60 are arranged on the circumference around the axis of the liner 1, and the cutter 70 is disposed radially inward of the flange portion 60 with respect to the plurality of pins 67. It is configured to rotate about the axis of the liner 1. The inner side in the radial direction of the flange 60 is easy to cut the fiber bundle F by the cutter 70, and the cutter 70 hardly interferes with the fiber bundle F when the fiber bundle F is wound around the flange 60.

  According to the FW device 100, the cutter 70 can advance and retreat in the axial direction of the liner 1 with respect to the flange portion 60, and when cutting a plurality of fiber bundles F, the liner 1 is placed on the pin 67 side of the flange portion 60. While advancing, the fiber bundle F is cut by rotating around the axis of the liner 1 one or more times. For this reason, the fiber bundle F can be reliably cut by a simple operation of the cutter 70, and the cutter 70 hardly interferes with the fiber bundle F when the fiber bundle F is wound around the collar portion 60.

  According to the FW device 100, when it is detected that the cutter 70 has rotated one or more times around the axis center of the liner 1, a plurality of fiber bundles F drawn from the first helical winding head 43 and the second helical winding head 44. Are all disconnected. For this reason, it can be easily determined that the cutting of the fiber bundle F has been completed.

  According to the FW device 100, the cutter 70 is a cutter main body as a holding member having a round blade 74 and guides 711, 721, 731 for guiding the fiber bundle to the round blade 74 while rotatably holding the round blade 74. 71, a first holding unit 72, and a second holding unit 73. By cutting the fiber bundle F, the round blades 74 are rotated little by little, and the use portion of the round blades 74 fluctuates. Therefore, the performance of the cutter 70 is maintained over a long period of time, and the frequency of maintenance of the cutter 70 is reduced. Can do.

  According to the FW device 100, the pin 67 includes a body portion 671 that gradually tapers toward the distal end side, and a head portion 672 provided on the distal end side of the body portion 671, and is inserted between the plurality of pins 67. The fiber bundle F is prevented from falling off. For this reason, the fiber end of the helical winding device 40 is uniformly wound around the collar portion 60 without falling off from the pin 67 and is reliably held. Further, when starting helical winding around the next liner 1 (L2), the fiber ends are uniformly wound around the collar portion 60 without falling off the pin 67, so that the fiber bundle F is fed from the collar portion 60 to the liner 1 When moving to the helical winding around the support shaft 26 and the liner 1 (L2), winding abnormality hardly occurs.

  As mentioned above, although embodiment of this invention was described, this invention is not limited to the said Example.

100 Filament winding device (FW device)
DESCRIPTION OF SYMBOLS 10 Main base 20 Liner transfer device 30 Hoop winding device 40 Helical winding device 50 Yarn end processing device 51 1st drive device 60 Saddle 65 Winding rod 66 Connecting rod 67 Pin 671 Body 672 Head 673 Engaging portion 70 Cutter 71 Cutter main body 72 First holding part 73 Second holding part 74 Round blade 90 Control part 1 Liner F Fiber bundle

Claims (8)

A filament winding apparatus for winding a fiber bundle around an outer peripheral surface of a liner,
The main base,
A liner transfer device that supports the liner and rotates about the axis, and reciprocates in the axial direction of the liner with respect to the main base;
The helical winding head is fixed to the main base, and is installed on the helical winding head by rotating the liner about the axis while moving the liner transfer device in the axial direction of the liner. A helical winding device in which fiber bundles are drawn from a plurality of fiber guides respectively, and a plurality of fiber bundles are simultaneously wound around the outer peripheral surface of the liner;
A collar portion having a plurality of pins that are movable forward and backward in the axial direction of the liner with respect to the plurality of fiber bundles drawn from the plurality of fiber guides and rotatable around the axis of the liner; A cutter disposed on the radially inner side of the flange with respect to the pin, and a yarn end processing device,
With
After the helical winding on the liner, the yarn end processing device performs an insertion operation to position the plurality of pins of the collar portion between the plurality of fiber bundles drawn from the plurality of fiber guides, and the insertion operation Thereafter, the hook portion is rotated relative to the helical winding head about the axis of the liner to wind the plurality of fiber bundles around the outer periphery of the hook portion, and the hook winding operation is performed. Thereafter, a filament winding apparatus that performs a first cutting operation of cutting the plurality of fiber bundles with the cutter. The filament winding apparatus according to claim 1,
Prior to the start of helical winding on the liner newly installed in the liner transfer device, the yarn end processing device rotates the collar portion relative to the helical winding head around the axis of the liner. Performing a preparatory operation for winding the plurality of fiber bundles on the outer periphery of the collar part, and after the preparing operation, a transition operation for shifting the winding position of the plurality of fiber bundles from the collar part to the support shaft of the liner A filament winding apparatus that performs a second cutting operation of cutting the plurality of fiber bundles with the cutter after the transition operation. The filament winding apparatus according to claim 1 or 2,
The plurality of fiber guides are installed on the helical winding head radially and at equal intervals toward the outer peripheral surface of the liner,
The plurality of pins of the collar portion are installed at equal intervals around the liner axis,
In the inserting operation, the plurality of fiber bundles are inserted into the plurality of pins by an equal number of pieces, respectively. The filament winding apparatus according to any one of claims 1 to 3,
The plurality of pins of the collar portion are arranged on a circumference around an axis of the liner,
The filament winding apparatus, wherein the cutter is configured to rotate about an axis of the liner at a radially inner side of the flange with respect to the plurality of pins. The filament winding apparatus according to any one of claims 1 to 4,
The cutter is movable forward and backward in the axial direction of the liner with respect to the collar portion, and when cutting the plurality of fiber bundles, the cutter advances to the pin side of the collar portion, and the shaft of the liner A filament winding apparatus that rotates one or more times around a center to cut the plurality of fiber bundles. The filament winding apparatus according to any one of claims 1 to 5,
When the detection unit detects the position of the cutter and detects that the cutter has rotated more than one turn around the axis of the liner, all of the plurality of fiber bundles drawn from the helical winding head are cut. A filament winding device that judges that The filament winding apparatus according to any one of claims 1 to 6,
The cutter includes a round blade and a holding member having a guide that guides the fiber bundle to the round blade while rotatably holding the round blade. The filament winding apparatus according to any one of claims 1 to 7,
The pin includes a barrel portion that gradually tapers toward a distal end side, and a head portion provided on the distal end side of the barrel portion, and prevents the fiber bundle inserted between the plurality of pins from dropping off. , Filament winding device.

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