JP7078908B2 - Fiber bundle supply device - Google Patents

Description

The present invention relates to a fiber bundle supply device including a winding device for unwinding a fiber bundle from a bobbin.

Conventionally, a filament winding device in which a fiber bundle impregnated with a resin is wound around an outer peripheral surface of a liner is known (see, for example, Patent Document 1). The filament winding device is provided with a fiber bundle supply device including a winding device for unwinding the fiber bundle wound around the outer peripheral surface of the liner from the bobbin.

In such a fiber bundle supply device, when the number of fiber bundles wound around the bobbin is reduced, the operation of supplying the fiber bundle is interrupted, and the bobbin with the reduced fiber bundle is replaced with a new bobbin by the operator.

Japanese Unexamined Patent Publication No. 2018-114695

However, when the operator interrupts the supply operation of the fiber bundle and replaces the bobbin, it takes a considerable amount of time to restart the supply operation of the fiber bundle, so that it is difficult to improve the production efficiency.

In order to improve this inconvenience, it is conceivable to automate the bobbin replacement, but it was difficult to automate it for the following reasons. Specifically, since the fiber bundle is wound on the outer peripheral surface of the shaft portion while repeating the reciprocating movement in the axial direction of the bobbin, the fiber bundle repeats the reciprocating movement in the axial direction even when it is unwound from the bobbin. Therefore, it is not possible to specify the axial position of the fiber bundle. Further, the fiber bundle is impregnated with a resin, and the fiber bundle has adhesiveness. Therefore, when the speed at which the fiber bundle is unwound from the bobbin fluctuates, the unwinding position of the fiber bundle moves in the circumferential direction of the bobbin, so that the position of the fiber bundle in the circumferential direction cannot be specified. As a result, it was difficult to automate the bobbin replacement because the position of the fiber bundle fluctuates in the axial and circumferential directions of the bobbin.

The present invention has been made in view of such a point, and an object of the present invention is to provide a fiber bundle supply device capable of automatically exchanging bobbins.

The fiber bundle supply device according to the present invention is a fiber bundle supply device in which the first bobbin can be replaced with a second bobbin, and is a rotation in which the fiber bundle is selectively inserted into the first bobbin and the second bobbin around which the fiber bundle is wound. A winding device having a shaft and unwinding the bobbin, a first roller arranged parallel to the rotating shaft and transporting the bobbin, and a bobbin transporting direction with respect to the first roller. A second roller, which is arranged on the downstream side and is arranged along a direction intersecting the axial direction of the first roller, and conveys the fiber bundle that has passed through the first roller in a twisted state, and the first roller. A clamp portion arranged between the roller and the second roller and holding the fiber bundle in a twisted state unwound from the first bobbin in the thickness direction of the fiber bundle, and the clamp portion and the first roller. The fiber bundle arranged between the first bobbins, unwound from the first bobbin, and sandwiched by the clamp portion is wound around the second bobbin and a cutting blade that moves in the axial direction of the first roller to cut the fiber bundle. The fiber bundle was pulled out to a position downstream of the cutting blade in the fiber bundle transport direction while passing through the first roller, and was unwound from the first bobbin and cut by the cutting blade. Includes a crimping portion that sandwiches and crimps the end portion of the fiber bundle and the tip end portion of the fiber bundle pulled out from the second bobbin by the pull-out mechanism in the axial direction of the first roller.

According to the fiber bundle supply device of the present invention, a first roller arranged parallel to the rotation axis and transporting the fiber bundle is included. As a result, even when the speed at which the fiber bundle is unwound from the bobbin fluctuates, it is possible to prevent the unwinding position of the fiber bundle from moving in the circumferential direction of the bobbin by the first roller. That is, by providing the first roller, the position of the fiber bundle changes only in the axial direction of the first roller. Further, since the cutting blade moves the fiber bundle in the axial direction of the first roller to cut, even if the position of the fiber bundle fluctuates in the axial direction of the first roller, the cutting blade ensures that the fiber bundle is cut. Can be disconnected. Further, the crimping portion is pulled out from the second bobbin because the end portion of the fiber bundle cut by the cutting blade and the tip end portion of the fiber bundle pulled out from the second bobbin are sandwiched in the axial direction of the first roller and crimped. Even when the position of the fiber bundle is changed in the axial direction of the first roller, the fiber bundle cut by the cutting blade and the fiber bundle drawn from the second bobbin can be reliably crimped. Therefore, the bobbin can be replaced automatically.

Further, by automatically replacing the bobbin, it is possible to reduce the variation in the crimping state of the fiber bundle as compared with the case where the operator manually replaces the bobbin.

Further, by providing the second roller arranged along the direction intersecting the axial direction of the first roller, the fiber bundle can be twisted by, for example, 90 degrees between the first roller and the second roller. As a result, when the fiber bundle cut by the cutting blade and the fiber bundle drawn from the second bobbin are sandwiched in the axial direction of the first roller by the crimping portion, the tape-shaped fiber bundles can be overlapped with each other in the thickness direction. can. That is, it is possible to prevent the tape-shaped fiber bundle from being compressed in the width direction and the shape of the fiber bundle from being deformed.

It is a figure which shows the whole structure of the filament winding apparatus for manufacturing the high-pressure container provided with the fiber bundle supply apparatus by one Embodiment of this invention. It is a perspective view which shows the whole structure of the fiber bundle supply device by one Embodiment of this invention. It is a perspective view which shows the structure of the old and new bobbin reversal part and the unwinding apparatus of the fiber bundle supply apparatus by one Embodiment of this invention. It is a top view which shows the state of the fiber bundle unwound from a bobbin. It is a perspective view which shows the structure of the end holding clip of the fiber bundle supply device by one Embodiment of this invention. It is a perspective view which shows the structure of the old and new bobbin reversal part and the touch roller part of the fiber bundle supply device by one Embodiment of this invention. It is a side view which shows the structure around the touch roller of the fiber bundle supply device by one Embodiment of this invention. It is a top view schematically showing the structure around the touch roller and the cutting crimping mechanism of the fiber bundle supply device according to one embodiment of the present invention. It is a perspective view which shows the structure of the cutting crimping mechanism of the fiber bundle supply device by one Embodiment of this invention. It is a top view which shows the structure around the cutting blade of the cutting crimping mechanism of the fiber bundle supply device by one Embodiment of this invention, and is the figure which shows the state just before cutting a fiber bundle by a cutting blade. It is a top view which shows the structure around the cutting blade of the cutting crimping mechanism of the fiber bundle supply device by one Embodiment of this invention, and is the figure which shows the state just before crimping two fiber bundles by a crimping portion. It is a perspective view which shows the state which the clip clamp of the drawing mechanism of the drawing mechanism of the fiber bundle supply device by one Embodiment of this invention holds an end holding clip.

Hereinafter, the fiber bundle supply device according to the embodiment of the present invention will be described with reference to the drawings.

FIG. 1 is a diagram showing an overall configuration of a filament winding device for manufacturing a high-pressure container provided with a fiber bundle supply device 100 according to an embodiment of the present invention. As shown in FIG. 1, the filament winding device includes a fiber bundle supply device 100 having a plurality of (here, four) bobbins 2 around which the fiber bundle 1 is wound, and guide rolls 3 and 4, a dancer 5, and an active dancer 6. It includes a tension control device 7, a fiber converging device 8, a fiber bundle supply unit 9 that swings or moves back and forth, and a control unit (not shown) that controls the entire filament winding device.

The fiber bundle 1 unwound from each bobbin 2 passes through the guide rolls 3 and 4 and is sent to the tension control device 7 for adjusting the tension of the fiber bundle 1. The fiber bundle 1 that has passed through the tension control device 7 is wound around the outer peripheral surface of the liner 10 via the fiber converging device 8 and the fiber bundle supply unit 9. The fiber bundle 1 wound around the outer peripheral surface of the liner 10 is subjected to appropriate heat treatment to cure the thermosetting resin impregnated in the fiber bundle 1, and is used for storing and supplying hydrogen and the like. It becomes the container 11.

Here, in the present embodiment, the fiber bundle supply device 100 automatically replaces the bobbin 2 with the reduced fiber bundle 1 with the new bobbin 2 when the fiber bundle 1 wound around the bobbin 2 is reduced. There is a mechanism for this. Although four of these mechanisms are provided in the present embodiment, they have the same configuration. Therefore, one mechanism will be described in the following description.

As shown in FIG. 2, the fiber bundle supply device 100 includes an old and new bobbin reversing section 20, an unwinding device 30, a touch roller section 40, a cutting and crimping mechanism 50, and a drawing mechanism 60.

As shown in FIG. 3, the old and new bobbin reversing portions 20 support the first bearing member 21a and the second bearing member 21b to which the cylindrical bobbin 2 is attached, and the support to which the first bearing member 21a and the second bearing member 21b are fixed. A base 22 and a motor 23 for rotating the support base 22 are included.

Each of the first bearing member 21a and the second bearing member 21b is made of a U-shaped sheet metal or the like, and rotatably supports both ends of the bobbin 2. The first bearing member 21a and the second bearing member 21b are arranged at positions symmetrical with respect to the rotation axis of the motor 23. Therefore, when the motor 23 rotates the support base 22 by 180 degrees, the positions of the first bearing member 21a and the second bearing member 21b are switched.

In FIG. 3, the first bearing member 21a is arranged at the unwinding position (position on the left front side of FIG. 3 with respect to the motor 23), and the second bearing member 21b is at the standby position (FIG. 3 with respect to the motor 23). It is located at the position on the far right side of 3. The fiber bundle 1 unwound from the bobbin 2 attached to the first bearing member 21a (hereinafter, also referred to as the first bobbin 2a) is wound around the outer peripheral surface of the liner 10. The bobbin 2 attached to the second bearing member 21b (hereinafter, also referred to as the second bobbin 2b) is replaced with the first bobbin 2a when the fiber bundle 1 of the first bobbin 2a is reduced. 1 Waits in the standby position until the fiber bundle 1 of the bobbin 2a is reduced.

Further, as shown in FIG. 4, the bobbin 2 is wound with a tape-shaped fiber bundle 1 impregnated with a resin while repeating reciprocating movement in the axial direction of the bobbin 2 with a twill angle. Therefore, even when the fiber bundle 1 is unwound from the bobbin 2, the reciprocating movement in the axial direction is repeated.

As shown in FIG. 3, a clip holding portion 25 to which the end holding clip 24 is detachably attached is fixed to each of the first bearing member 21a and the second bearing member 21b. The end holding clip 24 is a member for holding the tip of the bobbin 2 (second bobbin 2b) arranged in the standby position, and is a new bobbin 2 (second bobbin 2b) when the bobbin 2 is replaced. It is used to pull out the tip of the bobbin to a predetermined position.

As shown in FIG. 5, the end holding clip 24 includes a fixed piece 24a and a movable piece 24b that sandwich the fiber bundle 1, a torsion spring 24c that urges the movable piece 24b toward the fixed piece 24a, and a protrusion 24d. Has. By pushing one end 24e of the movable piece 24b, the movable piece 24b rotates against the urging force of the torsion spring 24c, and a gap is formed between the movable piece 24b and the fixed piece 24a. By releasing the pushing of the movable piece 24b, the movable piece 24b is rotated by the urging force of the torsion spring 24c, and the fiber bundle 1 can be sandwiched between the movable piece 24b and the fixed piece 24a. Further, the end holding clip 24 sandwiches the fiber bundle 1 in a state where the width direction of the fiber bundle 1 faces in the vertical direction (in other words, a state in which the fiber bundle 1 is twisted).

As shown in FIG. 3, the unwinding device 30 includes a rotary shaft 31 selectively inserted into the first bobbin 2a and the second bobbin 2b, a bearing portion 32 that rotatably supports the rotary shaft 31, and a rotary shaft 31. A drive motor 33 that generates a driving force for rotating the drive motor 33, a belt member 34 that transmits the rotational driving force from the drive motor 33 to the rotary shaft 31, a moving table 35 on which the bearing portion 32, the drive motor 33, and the like are mounted. It includes a base 36 on which the mobile base 35 is movably placed.

The rotation shaft 31 is formed so as to be insertable and removable with respect to the insertion hole of the bobbin 2 arranged at the unwinding position, and rotates integrally with the bobbin 2 in the inserted state. Further, the rotating shaft 31 is configured to move integrally with the bearing portion 32 in the insertion / removal direction (arrow AA'direction). The bearing portion 32 and the drive motor 33 are fixed to the moving table 35 and move in the arrow AA'direction integrally with the moving table 35. The moving table 35 moves in the direction of arrow AA'along the rail groove 36a provided in the base 36 by a driving force from a driving mechanism (not shown).

When winding the fiber bundle 1 around the outer peripheral surface of the liner 10, the rotating shaft 31 rotates in a normal direction while being inserted into the insertion hole of the bobbin 2 arranged at the unwinding position, and unwinds the fiber bundle 1. Then, for example, when the fiber bundle 1 of the first bobbin 2a is reduced and the first bobbin 2a is replaced with the second bobbin 2b, the rotating shaft 31 is pulled out from the insertion hole of the first bobbin 2a.

As shown in FIG. 6, the touch roller portion 40 includes a touch roller (first roller) 41, a bearing piece 42 that rotatably holds the touch roller 41, and a pedestal 43 on which the bearing piece 42 is movably mounted. , Includes.

The touch roller 41 is arranged parallel to the rotation axis 31 of the unwinding device 30 (that is, so as to extend in the direction of arrow AA'). Further, the touch roller 41 is configured to move in the direction of the arrow BB'that is orthogonal to the axial direction (direction of the arrow AA') and extends in the horizontal direction. Specifically, the bearing piece 42 moves in the direction of arrow BB'along the rail groove 43a provided in the pedestal 43 by a driving force from a driving mechanism (not shown). Therefore, since the touch roller 41 moves only in the direction of the arrow BB'while maintaining a state parallel to the rotation axis 31 of the unwinding device 30, the fiber bundle unwound from the bobbin 2 and passes in contact with the touch roller 41. The height position of 1 becomes constant.

Further, as shown in FIG. 7, the touch roller 41 is a fiber wound around the bobbin 2 so as to be in constant contact with the fiber bundle 1 wound around the bobbin 2 with a predetermined pressing force except when the bobbin 2 is replaced. It gradually moves in the direction of arrow B according to the remaining amount of the bundle 1. Therefore, by using the touch roller 41, it is possible to detect the remaining amount of the fiber bundle 1 wound around the bobbin 2.

Here, in the present embodiment, as shown in FIG. 8, a vertical roller (second roller) 71 is arranged at a position downstream of the touch roller 41 in the fiber bundle transport direction. The vertical roller 71 is arranged along a direction orthogonal to the axial direction of the touch roller 41 (vertical direction, vertical direction with respect to the paper surface of FIG. 8), and twists the fiber bundle 1 passing through the touch roller 41 by 90 degrees. Transport in a closed state (see also FIG. 4).

As shown in FIGS. 8 and 9, the cutting crimping mechanism 50 has a clamping portion 51 arranged between the touch roller 41 and the vertical roller 71, and a cutting crimping mechanism 50 arranged between the clamp portion 51 and the touch roller 41. Part 52 and.

As shown in FIG. 9, the clamp portion 51 includes a pair of holding pieces 51a that move in the direction of arrow AA'and a holding table 51b on which the pair of holding pieces 51a are movably placed in the direction of arrow AA'. I'm out. The pair of holding pieces 51a are configured to move (open and close) in the direction of arrow AA'by a drive mechanism (not shown). The pair of holding pieces 51a can hold the fiber bundle 1 in a state of being unwound from the first bobbin 2a and twisted by the vertical roller 71 in the direction of arrow AA'. When the pair of holding pieces 51a move in the direction of arrow AA'and hold the fiber bundle 1, the width direction of the fiber bundle 1 faces up and down (in other words, the thickness direction of the fiber bundle 1 points in the direction of arrow AA'. Therefore, the pair of sandwiching pieces 51a sandwich the fiber bundle 1 in the thickness direction.

The cutting and crimping portion 52 is arranged at a position near the upstream side in the fiber bundle transport direction with respect to the clamp portion 51. The cutting and crimping portion 52 includes a main body portion 52a having an L-shaped cross section that can move in the direction of arrow AA'and a flat plate-shaped receiving portion 52b that is arranged at a predetermined interval in the direction of arrow A with respect to the main body portion 52a. , Includes.

As shown in FIGS. 9 and 10, the main body 52a has a cutting blade 52c for cutting the fiber bundle 1, a protective member 52d protruding toward the receiving portion 52b from the tip (blade edge) of the cutting blade 52c, and a protective member. A holding body 52e for holding the 52d, a regulating shaft 52f to which the holding body 52e is attached and restricting the movement of the holding body 52e to the receiving portion 52b side, and a compression coil spring 52g for urging the holding body 52e to the receiving portion 52b side. , A crimping portion 52h provided at the tip of the main body portion 52a and crimping the fiber bundle 1 is provided. Heat is transferred to the crimping portion 52h from a heat source (not shown), and as will be described later, the crimping portion 52h thermocompression-bonds two fiber bundles 1 in an overlapping state.

Further, a rotation shaft 53 extending in the direction of arrow AA'is attached to the main body portion 52a. The rotation shaft 53 can be rotated 180 degrees by the rotation drive mechanism 54, and can be moved in the direction of the arrow AA'.

When the main body portion 52a moves in the direction of arrow A from the state shown in FIG. 10, the protective member 52d comes into contact with the receiving portion 52b. When the main body portion 52a further moves in the direction of the arrow A, the compression coil spring 52g is compressed and the cutting blade 52c comes into contact with the receiving portion 52b. As a result, the fiber bundle 1 is cut.

When the main body portion 52a moves in the direction of arrow A from the state shown in FIG. 11, the crimping portion 52h comes into contact with the receiving portion 52b. As a result, the two fiber bundles 1 in the overlapped state are thermocompression bonded. Since the main body 52a is provided with a protective member 52d that protrudes toward the receiving portion 52b from the tip (blade edge) of the cutting blade 52c, the fiber bundle 1 is generated when the main body 52a moves in the direction of the arrow A. It does not come into contact with the tip of the cutting blade 52c and is not cut.

As shown in FIG. 12, the drawer mechanism 60 includes a pair of clip clamps 61 for vertically sandwiching the protrusion 24d of the end holding clip 24, a clamp holding base 62 provided with a pair of clip clamps 61, and a clamp holding base 62. Includes a clamp body 63 to which the clamp body 63 is attached, and a rail member 64 (see FIG. 2) extending along the moving direction of the clamp body 63.

The pair of clip clamps 61 move (open and close) in the vertical direction along the rail groove 62a provided on the clamp holding base 62. The clamp holding base 62 can be moved in the vertical direction with respect to the clamp main body 63. Further, the clamp body 63 moves along the rail groove 64a (see FIG. 2) of the rail member 64. The vertical movement (opening and closing) of the pair of clip clamps 61, the vertical movement of the clamp holding base 62, and the movement of the clamp main body 63 are performed by a drive mechanism (not shown).

As shown in FIG. 2, the rail member 64 is formed so as to extend from a position downstream of the cutting and crimping mechanism 50 in the fiber bundle transport direction to a position near the unwinding position of the old and new bobbin reversing portions 20.

After sandwiching the end holding clips 24 arranged at the unwinding positions of the old and new bobbin reversing portions 20 by a pair of clip clamps 61, the clamp main body 63 is moved to a position downstream of the cutting and crimping mechanism 50 in the fiber bundle transport direction. By doing so, the tip end portion of the fiber bundle 1 wound around the bobbin 2 arranged at the unwinding position of the old and new bobbin reversing portions 20 can be pulled out to the cutting crimping position.

Next, the fiber bundle 1 unwound from the bobbin 2 will be described.

When the fiber bundle 1 is wound around the outer peripheral surface of the liner 10, the fiber bundle 1 is unwound from the first bobbin 2a attached to the first bearing member 21a arranged at the unwinding position of the old and new bobbin reversing portions 20. At this time, the touch roller 41 is in contact with the fiber bundle 1 wound around the first bobbin 2a, and the fiber bundle 1 unwound from the first bobbin 2a is at a constant height position (touch roller) by the touch roller 41. It will be sent out from the top of 41). Since the fiber bundle 1 is unwound while reciprocating in the axial direction (arrow AA'direction) with respect to the first bobbin 2a, the position of the fiber bundle 1 in the arrow AA'direction fluctuates.

The fiber bundle 1 that has passed through the touch roller 41 passes through the gap between the cutting blade 52c and the crimping portion 52h of the cutting and crimping mechanism 50 and the receiving portion 52b, and the gap between the pair of holding pieces 51a, and reaches the vertical roller 71. do. The fiber bundle 1 is twisted 90 degrees between the touch roller 41 and the vertical roller 71. The fiber bundle 1 that has passed through the vertical roller 71 is wound around the outer peripheral surface of the liner 10 via the guide rolls 3 and 4 and the like described above.

Next, a method of exchanging the bobbin 2 by the fiber bundle supply device 100 of the present embodiment will be described.

When the touch roller 41 detects that the remaining amount of the fiber bundle 1 wound around the first bobbin 2a is low, the winding operation of the fiber bundle 1 around the liner 10 is stopped. At this time, the rotation of the rotating shaft 31 of the unwinding device 30 is stopped.

Then, the fiber bundle 1 unwound from the first bobbin 2a is sandwiched by the clamp portion 51 of the cutting and crimping mechanism 50. After that, the main body 52a is moved in the direction of arrow A from the state of FIG. 10, and the fiber bundle 1 is cut by the cutting blade 52c. Then, the rotating shaft 31 of the unwinding device 30 is slightly counter-rotated, and the surplus fiber bundle 1 is wound around the first bobbin 2a.

After that, the touch roller 41 is moved in the direction of the arrow B'to separate from the first bobbin 2a, and then the rotating shaft 31 of the unwinding device 30 is pulled out from the first bobbin 2a. Then, the support base 22 of the old and new bobbin reversing portions 20 is rotated (reversed) by 180 degrees. As a result, the second bobbin 2b is arranged at the unwinding position, and the rotating shaft 31 of the unwinding device 30 is inserted into the second bobbin 2b. After that, the touch roller 41 is moved in the direction of arrow B and comes into contact with the fiber bundle 1 wound around the second bobbin 2b.

Then, after the clamp body 63 of the pull-out mechanism 60 is moved to a position near the unwinding position of the old and new bobbin reversal portions 20, the protrusion 24d of the end holding clip 24 is sandwiched by the pair of clip clamps 61. After that, the clamp body 63 of the drawing mechanism 60 is moved to a position downstream of the cutting and crimping mechanism 50 in the fiber bundle transport direction, so that the tip of the fiber bundle 1 wound around the second bobbin 2b is shown in FIG. It is pulled out to the position. At this time, the fiber bundle 1 is pulled out while being in contact with the touch roller 41.

After the previous replacement of the bobbin 2, a new bobbin 2 (second bobbin 2b) is previously attached to the second bearing member 21b by an operator. At that time, the tip of the new bobbin 2 (second bobbin 2b) is preliminarily attached to the end holding clip 24 by the operator. These operations by the operator are performed during the winding operation of the fiber bundle 1 around the liner 10.

After the tip of the second bobbin 2b is pulled out to the position shown in FIG. 11, the main body portion 52a is rotated 180 degrees from the state shown in FIG. 10, so that the state shown in FIG. 11 is obtained. At this time, the end portion of the fiber bundle 1 cut by the cutting blade 52c while being sandwiched by the clamp portion 51 of the cutting and crimping mechanism 50 and the tip end portion of the fiber bundle 1 pulled out from the second bobbin 2b are substantially separated from each other. They are located at the same height. Then, by moving the main body portion 52a in the direction of the arrow A from the state of FIG. 11, the main body portion 52a is pulled out from the end portion of the fiber bundle 1 sandwiched by the clamp portion 51 of the cutting and crimping mechanism 50 and the second bobbin 2b. The tip of the fiber bundle 1 is thermocompression bonded.

After that, by opening the pair of holding pieces 51a of the cutting and crimping mechanism 50, the holding of the fiber bundle 1 by the clamp portion 51 is released. Further, the movable piece 24b of the end holding clip 24 is rotated by a mechanism (not shown) provided in the clamp body 63 of the pull-out mechanism 60, so that the holding of the second bobbin 2b by the end holding clip 24 is released. To. After the main body portion 52a is moved in the direction of the arrow A', the winding operation of the fiber bundle 1 around the liner 10 is restarted.

As described above, the first bobbin 2a having a low remaining amount of the fiber bundle 1 is automatically replaced with a new second bobbin 2b. In the present embodiment, as shown in FIG. 2, a plurality of (4 in this case) bobbins 2 are used, but when it is detected that the remaining amount of the fiber bundle 1 of one bobbin 2 is low, All (4) bobbins 2 are replaced in parallel (simultaneously).

After the replacement of the bobbin 2 is completed as described above, the clamp body 63 of the withdrawal mechanism 60 is moved to a position near the unwinding position of the old and new bobbin reversing portions 20, and the end holding clip 24 is at the unwinding position. It is placed on the clip holding portion 25 of the second bearing member 21b arranged in. After that, the operator replaces the first bobbin 2a arranged in the standby position with the new bobbin 2, and the tip end portion of the new bobbin 2 is attached to the end holding clip 24.

In the present embodiment, as described above, the touch roller 41 is arranged parallel to the rotation shaft 31 and conveys the fiber bundle 1. As a result, even when the speed at which the fiber bundle 1 is unwound from the bobbin 2 fluctuates, the unwinding position of the fiber bundle 1 is moved in the circumferential direction (here, the vertical direction) of the bobbin 2 by the touch roller 41. It can be suppressed. That is, by providing the touch roller 41, the position of the fiber bundle 1 changes only in the axial direction of the touch roller 41. Further, since the cutting blade 52c moves the fiber bundle 1 in the axial direction of the touch roller 41 to cut, even if the position of the fiber bundle 1 fluctuates in the axial direction of the touch roller 41, the cutting blade 52c makes the fiber. The bundle 1 can be reliably cut. Further, since the crimping portion 52h sandwiches the end portion of the fiber bundle 1 cut by the cutting blade 52c and the tip end portion of the fiber bundle 1 pulled out from the second bobbin 2b in the axial direction of the touch roller 41 and crimps the crimping portion 52h. 2 Even when the position of the fiber bundle 1 drawn from the bobbin 2b fluctuates in the axial direction of the touch roller 41, the fiber bundle 1 cut by the cutting blade 52c and the fiber bundle 1 drawn from the second bobbin 2b Can be reliably crimped. Therefore, the bobbin 2 can be replaced automatically. Since the touch roller 41 comes into contact with the fiber bundle 1 wound around the bobbin 2 except when the bobbin 2 is replaced, the unwound fiber bundle 1 is laterally displaced on the bobbin 2 and is one of the fiber bundles 1. It is possible to prevent the fiber bundle 1 from being entangled on the bobbin 2 by breaking the portion.

Further, by automatically replacing the bobbin 2, it is possible to reduce the variation in the crimping state of the fiber bundle 1 as compared with the case where the operator manually replaces the bobbin 2.

Further, by automatically replacing the bobbin 2, the time required for the replacement of the bobbin 2 can be shortened as compared with the case where the operator manually replaces the bobbin 2, so that the production efficiency can be improved. Can be done. Further, since a plurality of bobbins 2 (4 in this case) can be exchanged at the same time, the time required for exchanging the bobbins 2 can be further shortened. Thereby, the production efficiency can be further improved.

Further, by providing the vertical roller 71 arranged along the direction intersecting the axial direction of the touch roller 41, the fiber bundle 1 can be twisted 90 degrees between the touch roller 41 and the vertical roller 71. As a result, when the fiber bundle 1 cut by the cutting blade 52c and the fiber bundle 1 pulled out from the second bobbin 2b are sandwiched by the crimping portion 52h in the axial direction of the touch roller 41, the tape-shaped fiber bundles 1 are brought together. Can be stacked in the thickness direction. That is, it is possible to prevent the tape-shaped fiber bundle 1 from being compressed in the width direction and the shape of the fiber bundle 1 from being deformed.

It should be noted that the embodiments disclosed this time are exemplary in all respects and are not considered to be restrictive. The scope of the present invention is shown by the scope of claims rather than the description of the embodiment described above, and further includes all modifications within the meaning and scope equivalent to the scope of claims.

For example, in the above embodiment, an example in which the touch roller 41 in contact with the fiber bundle 1 wound around the bobbin 2 is used as the first roller is not limited to this, but the present invention is not limited to this, and the bobbin 2 is used as the first roller. A roller fixed at a position separated from the roller may be used. In this case, the remaining amount of the fiber bundle 1 wound around the bobbin 2 may be detected by using, for example, an optical sensor or the like.

1: Fiber bundle, 2a: 1st bobbin, 2b: 2nd bobbin, 30: Unwinding device, 31: Rotating shaft, 41: Touch roller (1st roller), 51: Clamp part, 52c: Cutting blade, 52h: Clamping part, 60: Pull-out mechanism, 71: Vertical roller (second roller), 100: Fiber bundle supply device

Claims (1)

A fiber bundle supply device that can replace the first bobbin with the second bobbin.
An unwinding device that has a rotation axis that is selectively inserted into the first bobbin and the second bobbin around which the fiber bundle is wound, and unwinds the fiber bundle.
A first roller, which is arranged parallel to the axis of rotation and conveys the fiber bundle,
The fiber bundle is arranged on the downstream side in the fiber bundle transport direction with respect to the first roller, and is arranged along the direction intersecting the axial direction of the first roller, and the fiber bundle that has passed through the first roller is twisted. The second roller to be transported in the state and
A clamp portion arranged between the first roller and the second roller and holding the fiber bundle in a twisted state unwound from the first bobbin in the thickness direction of the fiber bundle.
With a cutting blade arranged between the clamp portion and the first roller, the fiber bundle unwound from the first bobbin and sandwiched by the clamp portion is moved in the axial direction of the first roller and cut. ,
A pull-out mechanism for pulling out the fiber bundle wound around the second bobbin to a position downstream of the cutting blade in the fiber bundle transport direction while passing through the first roller.
The end portion of the fiber bundle unwound from the first bobbin and cut by the cutting blade and the tip end portion of the fiber bundle pulled out from the second bobbin by the pull-out mechanism are aligned in the axial direction of the first roller. A crimping part that is sandwiched and crimped, and a crimping part
A fiber bundle feeder comprising:

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