JP4423897B2 - Fiber bundle winding device and method for producing fiber bundle package - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
In the present invention, for example, when winding a tape-like fiber bundle having a flattened cross-sectional shape such as a flat yarn around a bobbin, the fiber bundle is not twisted or fuzzed without applying unnecessary external force. It is related with the manufacturing method of the fiber bundle winding apparatus and fiber bundle package which can obtain the fiber bundle package which can be rewound with sufficient opening property even when it unwinds a flat yarn.
[0002]
[Prior art]
Many of the reinforcing fiber bundles typified by carbon fiber bundles and glass fiber bundles are so-called prepregs in which the fiber bundles are impregnated with a matrix resin. Commercialized as a plastic molding. In recent years, with the trend toward weight reduction of the fiber-reinforced plastic molded body, a high-quality prepreg having a small thickness and few thickness spots is being demanded. When manufacturing such a prepreg, it is necessary to open thinly and widely in order to fully exhibit the high elastic characteristics of the single yarn constituting the reinforcing fiber bundle. For this reason, it has become an important issue to wind up the reinforcing fiber bundle, which is a raw material of the prepreg, on the bobbin in a state where the reinforcing fiber bundle is thinly and uniformly spread in advance.
[0003]
In a typical fiber bundle winder, the fiber bundle is traversed in the axial direction of the take-up bobbin by a traverse guide device that reciprocates in parallel with the rotation axis of the take-up bobbin.
[0004]
Conventionally, as a fiber bundle winding device for winding a flat tape-shaped reinforcing fiber bundle spread thinly in advance as described above with a stable thread width from the beginning of winding to the end of winding, the fiber bundle winding device reciprocates parallel to the rotation axis of the winding bobbin. A guide stand that moves, a pair of upper guide rollers whose rotation axis is arranged perpendicular to the rotation axis of the take-up bobbin on the upper part of the guide stand, and a rotation shaft that is lower than the guide stand. There has been proposed a fiber bundle winding device having a pair of lower guide rollers arranged in parallel to the rotation shaft and a conical guide roller for twisting the fiber bundle by 90 ° in the axial direction (for example, Patent Documents) 1). Further, as a winding device having a swing guide, the final adhering roller for feeding a narrow strip to the winding drum is swung with the normal to the outer surface of the winding drum as the swing center axis. Thus, a winding device that winds the narrow strip around the drum while orthogonally intersecting the straight line parallel to the winding direction of the narrow strip and the rotation axis of the attaching roller that swings has been proposed (for example, a patent) Reference 2).
[0005]
[Patent Document 1]
Japanese Patent Laid-Open No. 2001-348166 (FIG. 2)
[0006]
[Patent Document 2]
Japanese Patent No. 3194765 (FIGS. 1 and 2)
[0007]
[Problems to be solved by the invention]
However, these conventional fiber bundle winding devices have the following drawbacks. In the fiber bundle winding device disclosed in FIG. 2 of Patent Document 1, the final guide rollers 15 and 16 installed at the lowermost part of the guide stand have their rotation axes parallel to the rotation axis of the winding bobbin. So that it is fixed. The fiber bundle is fed out in a direction perpendicular to the final guide roller, that is, in a direction perpendicular to the rotation axis of the bobbin. On the other hand, the fiber bundle traveling direction is traversed by traversing from the final guide roller to the fiber bundle package. Tilt by an angle. Therefore, the fiber bundle is bent on the final guide roller, and a tension difference is generated in the fiber bundle width direction. As a result, partial yarn slack and twist are likely to enter the fiber bundle, and a stable winding state cannot be ensured.
[0008]
1 and 2 of Patent Document 2, the final adhering roller 75 for feeding the narrow strip to the winding drum is swung with the normal to the outer surface of the winding drum as the swinging central axis. A device for winding a narrow strip that is fed to a winding drum is disclosed. However, in the winding device, the sticking roller is swung by inserting and removing the piston rod of the cylinder by the control signal of the sequencer. However, since the swing is mechanically determined, the wide fiber bundle The tension difference in the fiber bundle width direction that occurs during traversing cannot be completely absorbed. Further, there is no guide having a swing fulcrum on the upstream side in the traveling direction of the narrow strip, and when swinging, the yarn path is located on the upstream side in the traveling direction of the narrow strip when the swing is performed. It fluctuates, and the same bending as in Patent Document 1 occurs on the upstream supply roller. Furthermore, in winding a fiber bundle, the winding bobbin may be wound at a constant winding ratio, ie, the winding speed of the winding bobbin and the traverse cycle are kept constant. Since the twill angle changes as it becomes thicker, it cannot cope with traversing of the fiber bundle that changes from moment to moment, and a stable winding state cannot be secured.
[0009]
The present invention eliminates the drawbacks of these conventional techniques, and when winding a wide fiber bundle around a bobbin, it does not apply unnecessary external force to the fiber bundle from the beginning to the end of winding, and there is no twisting, fluffing, etc. A fiber bundle winding device that can be wound in a state is provided, and furthermore, a fiber having good openability even when the fiber bundle is rewound by winding in a thin and evenly spread state An object of the present invention is to provide a fiber bundle package manufacturing method capable of manufacturing a bundle package.
[0010]
[Means for Solving the Problems]
As a result of intensive studies on the above problems, the present inventors reduced the external force applied to the fiber bundle when traversing the final guide of the traverse guide according to the fiber bundle, It was found that the tension difference in the fiber bundle width direction can be reduced by absorbing the bending, and the fiber bundle can be wound in a good state while twisting and fluffing are suppressed.
[0011]
The fiber bundle winding device of the present invention employs the following means in order to solve the above problems. That is,
(1) A guide for guiding the fiber bundle, a traverse mechanism for the guide, and a pressure roller for pressing the surface of the package, and the fiber bundle is wound around the bobbin while the guide is traversed in the bobbin rotation axis direction by the traverse mechanism. In the take-up fiber bundle device, the guide is positioned at least at a fulcrum guide in which a rotation shaft is disposed substantially parallel to the bobbin shaft , and downstream of the fulcrum guide in the fiber bundle traveling direction and upstream of the pressure roller. And a swing guide that swings about a rotation axis orthogonal to the rotation axis of the take-up bobbin. The swing center axis of the swing guide is viewed from the direction of the rotation axis of the take-up bobbin, Between the fulcrum guide and the swing guide, the swing guide swings following the traversing of the fiber bundle by the traverse mechanism.
[0013]
( 2 ) In the case of the winding device of ( 1 ), the position of the swing guide is determined from the fulcrum guide with respect to the swing center axis of the swing guide as viewed from the rotation axis direction of the winding bobbin. It is preferable that the angle formed by the yarn path of the fiber bundle reaching the swing guide is in a range of 0 to 30 °.
[0014]
( 3 ) In the case of the winding device of (1) or (2), the position of the swing guide is determined by the yarn path of the fiber bundle coming out of the swing guide when viewed from the rotation axis direction of the winding bobbin. It is preferable that the angle is a position within a range of 90 ° ± 30 ° with respect to the vertical line.
[0015]
( 4 ) In the winding device of any one of (1) to ( 3 ), the fulcrum guide and the swing guide are supported by a guide stand, and the guide stand is moved in the direction of the rotation axis of the bobbin by a traverse mechanism. It is preferable to traverse the fiber bundle by reciprocating.
[0016]
( 5 ) In the case of the winding device of ( 4 ), the guide stand is provided with a first guide having an axis orthogonal to the rotation axis of the bobbin as a rotation axis on the upstream side of the fulcrum guide. It is preferred that
[0017]
( 6 ) In the case of the winding device of ( 5 ), between the first guide and the fulcrum guide, further assisting twisting the fiber bundle to 45 degrees with respect to the rotation axis of the first guide A guide is preferably provided.
[0018]
( 7 ) In the case of the winding device of any one of (1) to ( 6 ), the fiber bundle is traversed by reciprocating the bobbin in the direction of the rotation axis instead of the traverse mechanism of the guide. It is preferable.
[0019]
An apparatus for producing a fiber bundle package according to the present invention is characterized by including the fiber bundle winding device according to any one of (1) to ( 7 ).
[0020]
The fiber bundle package manufacturing method of the present invention is characterized by using the fiber bundle package manufacturing apparatus.
[0021]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the drawings of one embodiment.
[0022]
Here, FIG. 1 is a perspective view of an embodiment of the fiber bundle winding device 1 of the present invention, FIG. 2 is a front view of the main part of the device of FIG. 1, and FIG. 3 is used in the device of FIG. It is a schematic side view which shows the positional relationship of a rocking | fluctuation guide and a fulcrum guide. In FIG. 3, the moment when the guide shaft of the swing guide 5 b is parallel to the rotational axis of the winding bobbin 7 is shown.
[0023]
In FIG. 1, the schematic flow of the fiber bundle F having a tape-shaped cross section in the winding device 1 of the present invention will be described first. The fiber bundle F that has passed through the final yarn path guide 11 from the upstream process (not shown) through the transport roll. Is traversed by a traverse guide 12 that reciprocates in the direction of the arrow P in the figure, and is finally wound around the winding bobbin 7 by being given a traverse motion with the yarn path guide 11 as a fulcrum.
[0024]
As shown in FIGS. 1 and 2, the fiber bundle winding device 1 of the present invention is a traverse mechanism that is a guide rail in a state where a plurality of rollers 3a, 3b and the like described later are supported in addition to the yarn path guide 11. 8 has a traverse guide 12 that reciprocates between both ends of the winding bobbin in the P direction in the figure.
[0025]
As shown in FIGS. 2 and 3, the traverse guide 12 includes a first guide 3 a, a guide 3 b, an auxiliary guide 4, a fulcrum guide 5 a, and a swing guide 5 b in order from the top. On the other hand, it is cantilevered so that it can rotate freely without forced driving. Of these, the guides 3 a and 3 b are provided in a positional relationship in which the plane of the fiber bundle F is along the outer peripheral surface of both guides, that is, the guide shaft is twisted substantially at right angles to the rotation axis of the winding bobbin 7. The guide 3b is provided so as to sandwich the fiber bundle immediately below the first guide 3a. The first guide 3 a and the guide 3 b grip the fiber bundle F that traverses along with the reciprocating movement of the traverse guide 12, and the yarn path after the guide out is relative to the rotation axis of the winding bobbin 7. In order to satisfy this function, the guide in which the guide shaft is twisted at a substantially right angle with the rotation axis of the take-up bobbin 7 is used in order to satisfy this function. Two or more guides including the guide 3a and the guide 3b are preferably provided.
[0026]
The auxiliary guide 4 is supported so as to have a crossing angle of 45 degrees with respect to the rotation axis of the first guide 3a and the guide 3b described above in order to twist the flow direction of the fiber bundle by about 45 degrees.
[0027]
The following fulcrum guide 5a and swing guide 5b are features of the winding device of the present invention, and will be described in detail with reference to FIGS. 1, 2, 4 and 5. FIG. 4 and 5 are both schematic side views of the swinging portion of the traverse guide 12, showing the state before and after the swinging of the swinging guide 5b.
[0028]
As shown in these drawings, the fulcrum guide 5a has a guide shaft that is further twisted 45 degrees below the auxiliary guide 4 with respect to the auxiliary guide shaft, that is, its rotational axis is 90 degrees as viewed from the first guide 3a. The guide stand 2 is cantilevered so as to be rotatable in a direction coinciding with the rotation axis of the take-up bobbin 7 in a twisted state. On the other hand, the swing guide 5b is supported by the bracket 10 so as to be rotatable in a cantilevered manner in a direction in which the guide shaft coincides with the take-up bobbin shaft. Further, as shown in FIG. On the other hand, the bearing 9 is cantilevered so as to be rotatable about its central axis 5 b ′. This central axis 5 b ′ is orthogonal to the rotational axis of the winding bobbin 7. In this case, with respect to the positional relationship between the fulcrum guide 5a, the swing guide 5b, and the central shaft 5b ′, the center shaft 5b ′ is positioned between the fulcrum guide 5a and the swing guide 5b. 4, the point C where the fiber bundle F is separated from the fulcrum guide 5a (this is defined as the fulcrum of oscillating), the ground point D on the oscillating guide of the fiber bundle F entering the oscillating guide 5b, and the central axis The positional relationship in which the three members 5b 'are on the same plane is good. Further, the swing guide 5b uses the center shaft 5b 'of the bearing 9 as the swing center (in FIG. 4, the swing fulcrum C on the lower surface of the fulcrum guide 5a is also the swing center) and swings with the central shaft 5b'. The moving guide 5b is arranged so that the distance from the rotation axis is X in FIG. 3 (in FIG. 4, when the radius of the swinging guide 5b is R, X = R). With such a configuration, the swing guide 5b can perform a swing motion following the reciprocating motion of the traverse guide 12 while freely rotating itself.
[0029]
A pressure roller 6 presses the surface of the package with an appropriate contact pressure during winding in order to smoothly perform the winding operation with the winding bobbin 7.
[0030]
The above is the basic configuration of the winding device of the present invention, and it is more preferable to adopt the following configuration as each component member.
[0031]
First, in FIG. 3, the ground contact point D on the swing guide 5b of the fiber bundle F entering the swing guide 5b is formed by the center axis 5b ′ and the yarn path of the fiber bundle entering the swing guide 5b, that is, the straight line CD. If the angle θ1 is an excessively large angle, the fiber bundle F is in the direction of the arrow Q in FIG. 5 during the period from the fulcrum guide 5a to the swing guide 5b (between the points CD) even if the swing guide 5b swings. Is not twisted and causes bending, thread slip, and the like on the fulcrum guide 5a, and therefore it is preferably within 30 °, more preferably 0 °. FIGS. 4 and 5 show the case where θ1 is 0 °, and the fiber bundle F has a traverse angle φ by traversing around the central axis 5b ′ as a rotation axis by the swing of the swing guide 5b. In this configuration, the tension on the fiber bundle F at the point C is in the direction of the central axis 5b ′, that is, in the direction perpendicular to the guide axis of the fulcrum guide 5a. Therefore, the sliding of the fulcrum guide 5a in the guide axis direction can be suppressed.
[0032]
Next, in FIG. 3, when the angle θ2 formed between the swinging center shaft 5b ′ and the swinging guide 5b as viewed from the direction of the rotation axis of the winding bobbin 7 greatly deviates from 90 °, The tension acting on the fiber bundle F is not converted as a force for swinging the swing guide 5b, and the swing guide 5b cannot swing following the traversing of the fiber bundle F. Preferably there is. The case where θ2 is 90 ° is the most preferable case, but at this time, the bending of the fiber bundle is most efficiently absorbed by the swing of the swing guide 5b, and the damage to the fiber bundle is minimized. be able to.
[0033]
Each guide described above has been described as a free rotating roller. However, the guide is not limited to this, and may be a rod-shaped guide in a stationary state. Further, as the swing guide 5b, a guide 5c having a drum shape with a recessed central portion in the guide axial direction as shown in FIG. 6 may be used. In this case, it is preferable that the drum-shaped roller having a concave central portion in the guide axis direction has a curvature radius of 50 mm or more. If it is less than 50 mm, the fiber bundle width may be narrowed. Furthermore, when using the hourglass guide 5c having a recessed central portion in the guide axis direction, the fiber bundle F needs to pass through the central portion. If the position of the guide is shifted from the center, a force for narrowing the fiber bundle width acts, and the fiber bundle width may not be widened and traveling may not be stabilized.
[0034]
Up to now, the fiber bundle winding device of the present invention includes a traverse guide 12 that is mounted on the traverse mechanism 8 and reciprocates between both ends of the bobbin 7 in parallel with the rotation axis of the winding bobbin 7. As described above, an apparatus similar to the present invention can be applied to a so-called bobbin traverse method in which the traverse guide is fixed and the take-up bobbin reciprocates in parallel with its rotation axis. That is, the present invention can be applied when the guide stand 2 and the take-up bobbin 7 reciprocate relatively.
[0035]
The material constituting each guide may be any material that ensures a sufficient strength against the tension of the fiber bundle, and carbon steel, stainless steel, ceramic, or the like is preferably used.
[0036]
Next, the operation of the winding device described above will be described.
[0037]
As shown in FIGS. 1 and 2, when the fiber bundle F having a flat cross section passes through the yarn guide 11 and enters between the first guide 3 a and the guide 3 b installed on the upper part of the guide stand 2, First, both surfaces of the fiber bundle are held and restrained by both guides.
[0038]
Next, the flat surface is twisted 45 degrees on the outer peripheral surface of the auxiliary guide 4, and further twisted 45 degrees by the fulcrum guide 5a. As a result, at the point C of the swing fulcrum of FIG. Twisted in the direction twisted 90 degrees with respect to the bundle, that is, the flat surface of the fiber bundle coincides with the rotation axis direction of the swing guide 5b and the winding bobbin 7.
[0039]
The yarn path of the fiber bundle before the winding operation is in such a state. When the traverse guide 12 starts a traverse motion in the P direction in FIG. 2 in this state, the traverse guide 12 reaches the position of the broken line in the figure which is the traverse end. During this time, the swing guide 5b swings at a radius R around the swing fulcrum C of the fulcrum guide 5a following the traverse motion. At this time, the swing guide 5b is twisted with the fulcrum guide 5a in the direction of the arrow Q in FIG. 5, and the bending caused by the yarn length difference in the width direction of the fiber bundle F on the fulcrum guide 5a is automatically performed. Can be prevented. Further, the swing angle θ3 of the swing guide 5b in this process rotates so as to follow the swing motion of the traverse guide, so that it rotates so as to eliminate the tension difference generated at both ends of the fiber bundle that occurs during the traverse. . That is, when the traverse guide 12 reciprocates with respect to the take-up bobbin 7 and begins to traverse, the fiber bundle F is wound around the take-up bobbin 7 between the traverse guide 12 and the take-up bobbin 7. Pulled in the twill angle φ direction on the chamfer. Further, when the traverse guide 12 reverses the traverse direction at the left end of the take-up bobbin 7, the fiber bundle can be stably supplied by reversing the swing direction of the swing guide 5b following this, and the package end surface It is possible to prevent winding form defects due to disturbance.
[0040]
The oscillating mechanism using the fulcrum guide 5a and the oscillating guide 5b according to the present invention accurately responds to the fluctuation in the traveling direction of the fiber bundle between the traverse guide 12 and the take-up bobbin 7 as described above, and causes the fiber bundle to move. A stable winding state can be ensured by smoothly feeding the sheet to the winding bobbin 7 via the pressure roller 6. Further, since the position of the swing center C on the lower surface of the fulcrum guide 5a is maintained at the initial position during the traverse motion by the rotational motion of each guide roller, the initial traverse width is secured.
[0041]
Further, in the so-called winding ratio constant winding in which the rotation speed of the winding bobbin 7 and the traverse cycle are kept constant, the traverse angle φ on the winding surface of the winding bobbin 7 is gradually increased as the winding thickness increases. Although it fluctuates, the swing guide 5b used in the present invention is attached to the guide stand 2 via the bearing 9 and can freely rotate, so that it can immediately follow the fluctuation of the twill angle φ, and the fiber bundle Can be sent out to the take-up bobbin 7 in a stable state.
[0042]
The above-described fiber bundle winding device of the present invention can be used for winding various fiber bundles. In particular, it is necessary to widen the fiber bundle in a later step and wind it in a flat tape shape. Can be suitably used for reinforcing fiber bundles that are particularly useful, that is, glass fiber bundles, aramid fiber bundles, carbon fiber bundles, and graphitized fiber bundles. In particular, it can be suitably used for carbon fiber bundles and graphitized fiber bundles. By winding the fiber bundle package using such a fiber bundle package manufacturing apparatus equipped with the fiber bundle winding device of the present invention, a package with good openability can be obtained.
[0043]
【Example】
Hereinafter, the present invention will be described more specifically with reference to examples.
[0044]
In this embodiment, the fiber bundle width on the fiber bundle package is measured at 60 points at intervals of about 200 mm in the length direction of the fiber bundle using a caliper in a state where the fiber bundle is wound around the package. The bundle width and the variation CV value were obtained. The CV value is obtained by dividing the standard deviation of the measured value of the fiber bundle width by the average fiber bundle width.
[0045]
Example 1
In the fiber bundle winding device shown in FIGS. 1 to 3, a carbon fiber bundle having a polyacrylonitrile fiber as a precursor fiber (12,000 single fibers, 7 μm single fiber diameter, 6 mm fiber bundle width, fiber bundle width and fiber bundle) A thickness ratio of about 60 and a strand elastic modulus of 230 GPa were wound around a bobbin (paper tube) having a winding speed of 10 m / min, a traverse width of 250 mm, and an outer diameter of φ80 mm. Here, as for the guides that the traverse guide 12 of the fiber bundle winding device of the present invention has, a free rotating roller having an outer diameter of 22 mm and a length of 40 mm is used, and the first guide 3a from the top as shown in the figure. The guide 3b, the auxiliary guide 4, the fulcrum guide 5a, and the swing guide 5b are arranged in this order. Furthermore, the position of the swing guide 5b in FIG. 3 was set to θ1 = 10 ° and θ2 = 100 °. However, regarding the signs of θ1 and θ2, in FIG. 3, the counterclockwise direction is the positive direction and the clockwise direction is the negative direction.
[0046]
The obtained carbon fiber bundle package is a satisfactory one with an average fiber bundle width on the fiber bundle package of 7.5 mm and a CV value of 6.3% with a small winding fluctuation width, and the fiber bundle is twisted. It was fuzzless.
[0047]
(Comparative Example 1)
A winding device similar to that of Example 1 was used except that a free rotating roller having a rotation axis parallel to the rotation axis of the winding bobbin 7 was used instead of the swing guide 5b in the traverse guide 1.
[0048]
The obtained carbon fiber bundle package had an average fiber bundle width of 7.5 mm and a CV value of 9.7% on the fiber bundle package, and when the fiber bundle was wound 100 m, a total of two twists were confirmed. The package surface was markedly fuzzy and had poor quality.
[0049]
(Comparative Example 2)
3 except that the position of the swing guide 5b in FIG. 3 was set to θ1 = −10 °. As a result, the swing guide 5b did not swing during winding, and the function of the present invention could not be performed.
[0050]
(Comparative Example 3)
3 except that the position of the swing guide 5b in FIG. 3 was set to θ1 = 60 °. The obtained carbon fiber bundle package had an average fiber bundle width of 6.8 mm and a CV value of 8.4% on the fiber bundle package. At this time, yarn slip occurred on the surface of the fulcrum guide 3a, and a large number of fluff was confirmed.
[0051]
(Example 2)
3 except that the position of the swing guide 5b in FIG. 3 was set to θ1 = 0 °. The obtained carbon fiber bundle package is a satisfactory one with an average fiber bundle width of 7.5 mm on the fiber bundle package and a CV value of 6.0% and a small winding fluctuation range, and the fiber bundle is twisted. It was fuzzless.
[0052]
(Comparative Example 4)
The position of the swing guide 5b in FIG. 3 was the same as that in Example 1 except that θ2 = 150 °. As a result, the swing guide 5b did not swing during winding, and the function of the present invention could not be performed.
[0053]
(Comparative Example 5)
The position of the swing guide 5b in FIG. 3 was the same as that in Example 1 except that θ2 = 30 °. As a result, the swing guide 5b did not swing during winding, and the function of the present invention could not be performed.
[0054]
(Example 3)
The position of the swing guide 5b in FIG. 3 was the same as that in Example 1 except that θ2 = 90 °. The obtained carbon fiber bundle package is satisfactory, with an average fiber bundle width of 7.5 mm on the fiber bundle package and a CV value of 6.1%, and a small winding fluctuation width. It was fuzzless.
[0055]
Example 4
The position of the swing guide 5b in FIG. 3 was the same as that of Example 1 except that θ1 = 0 ° and θ2 = 90 °.
[0056]
The obtained carbon fiber bundle package is satisfactory with a small winding fluctuation width of 7.8 mm and an average fiber bundle width of 7.8% on the fiber bundle package, and the fiber bundle is twisted. It was fuzzless. Of the examples 1 to 4, the most satisfactory results were obtained in the present example 4 including the average fiber bundle width, the winding fluctuation width, the twist of the fiber bundle, and the fluffing.
[0057]
【The invention's effect】
According to the fiber bundle winding device and the fiber bundle package manufacturing method of the present invention, it is possible to wind the fiber bundle without twisting and fluffing without applying unnecessary external force to the fiber bundle. That is, by swinging the swing guide along the yarn path of the fiber bundle, unnecessary external force applied to the fiber bundle is reduced, and further, the tension difference in the fiber bundle width direction due to bending is absorbed, and the winding bobbin Therefore, twisting and fluffing of the fiber bundle can be suppressed. For this reason, the wound carbon fiber bundle package is thin and uniform and has a good spreadability.
[Brief description of the drawings]
FIG. 1 is an overall perspective view showing an embodiment of a fiber bundle winding device of the present invention.
FIG. 2 is a front view of a main part of the apparatus of FIG.
3 is a schematic side view showing a positional relationship between a swing guide and a fulcrum guide used in the apparatus of FIG.
4 is a side view of the swing guide before swinging in FIG. 2. FIG.
FIG. 5 is a side view of the swing guide after swinging in FIG. 2;
FIG. 6 is a schematic view of a drum-shaped guide.
[Explanation of symbols]
1: fiber bundle winding device 2: guide stand 3a: first guide 3b: guide 4: auxiliary guide 5a: fulcrum guide 5b: swing guide 5c: drum guide 5b ': central shaft 6: pressure roller 7: winding Take bobbin 8: Traverse mechanism 9: Bearing 10: Bracket 11: Final yarn path guide 12: Traverse guide F: Fiber bundle
C: Oscillating fulcrum
D: Grounding point of fiber bundle φ: Twill angle θ1: Angle formed by center axis 3b ′ and straight line CD θ2: Angle formed by yarn path extending from center axis 3b ′ and swing guide 5b θ3: Swing of swing guide 5b Movement angle X: Distance between the central axis 5b 'and the rotation axis of the swing guide 5b R: Radius of the swing guide 5b

Claims (9)

A fiber bundle having a guide for guiding the fiber bundle, a traverse mechanism for the guide, and a pressure roller for pressing the surface of the package, and winding the fiber bundle around the bobbin while the guide is traversed in the bobbin rotation axis direction by the traverse mechanism. In the winding device, the guide is at least positioned at a fulcrum guide having a rotation shaft disposed substantially parallel to the bobbin shaft, downstream of the fulcrum guide in the fiber bundle traveling direction and upstream of the pressure roller , and The swing guide includes a swing guide that swings about a rotation axis that is orthogonal to the rotation axis of the take-up bobbin, and the swing center axis of the swing guide is the fulcrum guide as viewed from the rotation axis direction of the take-up bobbin. And the swing guide, and the swing guide swings following the traversing of the fiber bundle by the traverse mechanism. Location. The position of the swing guide is such that the angle formed by the yarn path of the fiber bundle from the fulcrum guide to the swing guide is 0 with respect to the swing center axis of the swing guide as viewed from the rotation axis direction of the winding bobbin. The fiber bundle winding device according to claim 1 , wherein the fiber bundle winding device is located within a range of ˜30 °. The position of the swing guide is 90 ° ± 30, as viewed from the rotation axis direction of the winding bobbin, with respect to the swing center axis of the swing guide, the angle formed by the yarn path of the fiber bundle coming out of the swing guide The fiber bundle winding device according to claim 1 or 2 , wherein the position is within a range of °. The fulcrum guide and the swing guide are supported by a guide stand, and the fiber bundle is traversed when the guide stand is reciprocated in the direction of the rotation axis of the bobbin by a traverse mechanism. 4. The fiber bundle winding device according to any one of items 1 to 3 . 5. The fiber according to claim 4 , wherein the guide stand is provided with a first guide having an axis perpendicular to the rotation axis of the bobbin as a rotation axis on the upstream side of the fulcrum guide. Bundle winding device. Wherein between the first guide and the support point guide, to Claim 5, characterized in that is provided with auxiliary guide further twisting 45 degrees the fiber bundle with respect to the rotational axis of the first guide The fiber bundle winding device as described. The fiber bundle winding device according to any one of claims 1 to 6 , wherein the fiber bundle is traversed by reciprocating a bobbin in a rotation axis direction instead of the traverse mechanism of the guide. An apparatus for manufacturing a fiber bundle package, comprising the fiber bundle winding device according to any one of claims 1 to 7 . A method for producing a fiber bundle package, comprising producing a fiber bundle package using the apparatus for producing a fiber bundle package according to claim 8 .

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