Fiber winder

Abstract

To provide a fiber winder in which vibration of a traverse shaft is suppressed.SOLUTION: A fiber winder 10 comprises a gathering shoe 16 for converging a plurality of filaments 12 to form a strand 14, a collet 20 for winding the strand 14, and a traverse device 22 for traversing the strand 14 in the lengthwise direction of the collet 20 when the collet 20 winds the strand 14. The traverse device 22 comprises a straight traverse shaft 52 having one end 62 and the other end 64, a traverse 54 attached to the traverse shaft 52 and having a curved portion to which the strand 14 is applied, a motor 56 for rotating the traverse shaft 52, and a bearing 60 for surrounding and receiving the outer periphery of the traverse shaft 52 between the one end 62 and the other end 64 of the traverse shaft 52.SELECTED DRAWING: Figure 4

Description

[Technical field]

[0001] The present invention relates to a fiber winding device. [Background technology]

[0002] Conventionally, devices for winding fibers such as glass fibers have been developed, including those disclosed in Patent Document 1 below. Patent Document 1 bundles a plurality of glass filaments to form a glass strand. The glass strand is wound around a collet, and a cake is formed on the collet. When winding the glass strand around the collet, a traverse device is used to traverse the glass strand.

[0003] The traverse device is equipped with a traverse shaft and a curved traverse. When the traverse shaft rotates, the traverse also rotates. The glass strand is pressed against the traverse, and when the traverse rotates, the glass strand moves along the shape of the traverse. This movement of the glass strand causes it to traverse. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] WO2018 / 225570 Summary of the Invention [Problem to be solved by the invention]

[0005] In order to improve productivity, multiple cakes may be formed on one collet. In that case, the length of the collet becomes longer, and the length of the traverse shaft must be increased accordingly. If the length of the traverse shaft becomes longer, the vibration of the traverse shaft increases when the traverse shaft rotates. The vibration of the traverse shaft is transmitted to the glass strand, causing the glass strand to swing, making it impossible to form a cake of the desired shape on the collet. If the cake shape becomes irregular, the glass strand may become tightly wound. The cross section of the glass strand may be crushed, resulting in a defective glass strand.

[0006] SUMMARY OF THE PRESENT EMBODIMENT An object of the present invention is to provide a fiber winding device in which vibration of the traverse shaft is suppressed. [Means for solving the problem]

[0007] In order to solve the above problems, a fiber winding device according to the present invention has the following configuration.

[0008] The fiber winding device of the present invention comprises a gathering shoe that gathers multiple filaments to form a strand, a collet that winds up the strand, and a traverse device that traverses the strand in the longitudinal direction of the collet as the strand is wound onto the collet, the traverse device comprising a straight traverse shaft having one end and another end, a traverse attached to the traverse shaft and having a curved portion against which the strand is applied, a motor that rotates the traverse shaft, and a bearing that surrounds and receives the outer periphery of the traverse shaft between the one end and the other end of the traverse shaft. Effect of the Invention

[0009] According to the present invention, the vibration of the traverse shaft can be suppressed by supporting the traverse shaft between one end and the other end with a bearing. The vibration of the strand is also suppressed, and a cake of a desired shape can be formed on the collet. [Brief description of the drawings]

[0010] [Figure 1] FIG. 2 is a diagram showing the overall configuration of a fiber winding device. [Diagram 2] This is a diagram showing how four strands are formed to form four cakes. [Diagram 3] FIG. 13 is a diagram showing the movement of strands by an extrusion device. [Figure 4] FIG. 2 is a diagram showing the configuration of a traverse device. [Diagram 5] 5 is a cross-sectional view taken along line AA in FIG. 4. [Figure 6] FIG. 13 is a view showing the traverse shaft removed from the coupling. [Figure 7] FIG. 2 is a diagram showing an overall configuration of a fiber winding device equipped with a plurality of second bearings. [Figure 8] FIG. 13 is a diagram of a second bearing having a through hole formed in the holder. [Figure 9] FIG. 13 is a view showing the through hole of the holder opened. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0011] DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A fiber winding device according to the present invention will be described with reference to the drawings. A number of embodiments will be described, but the same reference numerals will be used to designate the same means in different embodiments, and the description thereof may be omitted.

[0012] [Embodiment 1] The fiber winding device 10 of the present application shown in FIG. 1 includes a gathering shoe 16 that gathers multiple filaments 12 to form a strand 14, a guide 18 that applies a predetermined tension to the strand 14, a collet 20 that winds up the strand 14, and a traverse device 22 that traverses the strand 14 in the longitudinal direction of the collet 20 when winding the strand 14 around the collet 20.

[0013] The filaments 12 are single fibers, such as glass fibers, basalt fibers, natural fibers, synthetic fibers, and inorganic fibers such as carbon. The gathering shoe 16 is a roller with grooves 24 (Fig. 2). Multiple filaments 12 are gathered in the grooves 24 of the gathering shoe 16. A strand 14 is formed by gathering the multiple filaments 12. The number of grooves 24 of the gathering shoe 16 is not limited, and multiple strands 14 may be formed at the same time. Fig. 2 shows a configuration in which multiple gathering shoes 16 are attached to a single rotating shaft 26 and multiple grooves 24 are provided.

[0014] The guide 18 is disposed between the gathering shoe 16 and the collet 20. The strand 14 contacts the guide 18, providing tension to the strand 14. The guide 18 is a roller or a comb-like plate with grooves 28. In FIG. 2, multiple guides 18 are attached to a single rotating shaft 30, providing multiple grooves 28.

[0015] The collet 20 is cylindrical or columnar. A motor is provided to rotate the collet 20 (not shown). The strand 14 is wound around the outer periphery of the collet 20 to form a cake 32. A cylindrical tube 34 may be attached to the outer periphery of the collet 20, and the strand 14 may be wound around the tube 34. The tube 34 may be made of paper or resin.

[0016] As shown in FIG. 1, two collets 20 are attached to a turret plate 36. The two collets 20 are arranged symmetrically with respect to the center of the turret plate 36. A partition plate 38 is provided between the two collets 20. A motor (not shown) is provided for rotating the turret plate 36. The position of one collet 20 is the winding position for the strand 14, and the position of the other collet 20 is the removal position for the completed cake 32. The collet 20 in the winding position is rotated by the motor. When the cake 32 is formed on one collet 20, the turret plate 36 is rotated and the positions of the collets 20 are swapped.

[0017] The fiber winding device 10 includes a pusher 40 that moves the position of the strand 14 traveling between the guide 18 and the collet 20. The pusher 40 includes a pusher bar 42 that pushes the strand 14 and a power device such as an air cylinder or hydraulic cylinder that moves the pusher bar 42 back and forth. For example, the pusher bar 42 is attached to a piston rod 44 of an air cylinder. Before the cake 32 is completed on the collet 20 and the turret plate 36 rotates, the pusher bar 42 is advanced and the strand 14 is pushed out of the cake 32 (FIG. 3). The strand 14 does not wind around the cake 32, but winds around a groove 48 near the end 46 of the collet 20. When the turret plate 36 rotates, the strand 14 is rewound from the groove 48 near the end 46 of one collet 20 to the groove 48 near the end 46 of the other collet 20. After that, the pusher bar 42 is returned to its original position, and the strand 14 is wound around the other collet 20.

[0018] The fiber winding device 10 may include a spray device 50 that sprays liquid such as water. When the turret plate 36 rotates, the strand 14 is rewound from one collet 20 to the other collet 20. At that time, one collet 20 stops rotating and the other collet 20 rotates, and the strand 14 is pulled by the difference in rotation speed between the two collets 20, and the strand 14 is bent and cut when wound. When the strand 14 is cut, there is a risk that the fine filaments 12 will scatter. The spray device 50 sprays liquid onto the strand 14 to prevent the filaments 12 from scattering.

[0019] 4 is disposed between the guide 18 and the collet 20. The traverse device 22 includes a traverse shaft 52, a traverse 54, a motor 56, a first bearing 58, and a second bearing 60.

[0020] The traverse shaft 52 is a straight rod or cylinder having one end 62 and another end 64. The central axis 66 of the traverse shaft 52 is parallel to the central axis 68 of the collet 20. The traverse shaft 52 is rotated about the central axis 66.

[0021] The traverse 54 is a linear body with a curved portion. When the traverse shaft 52 rotates, the traverse 54 also rotates. The strand 14 is pressed against the traverse 54. When the traverse 54 rotates, the strand 14 moves in accordance with the shape of the traverse 54. This movement causes the strand 14 to reciprocate in the longitudinal direction of the traverse shaft 52.

[0022] The motor 56 rotates the traverse shaft 52 about a central axis 66. A tip 72 of a rotating shaft 70 of the motor 56 is connected to one end 62 of the traverse shaft 52 via a coupling 74. The traverse shaft 52 can be attached to and detached from the rotating shaft 70 of the motor 56. The motor 56 is disposed in the internal space of a housing 76. The rotating shaft 70 of the motor 56 is rotatably held by a third bearing 80 in a cylindrical body 78. The cylindrical body 78 is fixed to the housing 76.

[0023] The rotation speed of the motor 56 may be determined based on the rotation speed of the motor that rotates the collet 20. The rotation of the traverse shaft 52 at a predetermined rotation speed in accordance with the rotation of the collet 20 allows the production of a cake 32 having a predetermined shape.

[0024] The first bearing 58 rotatably supports the other end 64 of the traverse shaft 52. The first bearing 58 includes a slide bearing, a ball bearing, a roller bearing, or the like. The first bearing 58 can suppress the other end 64 of the traverse shaft 52 from swinging significantly.

[0025] A holding member 82 for holding the first bearing 58 is provided. The holding member 82 includes a first vertical part 84 attached to the cylindrical body 78 and oriented perpendicular to the central axis 66 of the traverse shaft 52, a parallel part 90 having one end 86 and the other end 88, the one end 86 of which is attached to the first vertical part 84 and disposed parallel to the central axis 66 of the traverse shaft 52, and a second vertical part 92 attached to the other end 88 of the parallel part 90, oriented perpendicular to the central axis 66 of the traverse shaft 52, and holding the first bearing 58. The second vertical part 92 is rotatable or removable with respect to the other end 88 of the parallel part 90. For example, as shown in FIG. 4, the parallel part 90 and the second vertical part 92 are attached by a hinge, and the second vertical part 92 can rotate with respect to the parallel part 90. In addition, a jig (not shown) for fixing the second vertical part 92 in a state perpendicular to the parallel part 90 may be provided. The second vertical component 92 is rotated or removed to disengage the other end 64 of the traverse shaft 52 from the first bearing 58 .

[0026] The second bearing 60 is disposed between one end 62 and the other end 64 of the traverse shaft 52, in a portion where there is no traverse 54. For example, the second bearing 60 is disposed in the center of the traverse shaft 52 in the longitudinal direction. As shown in FIG. 5, the second bearing 60 surrounds the outer periphery of the traverse shaft 52 in the rotational direction. The second bearing 60 includes a sliding bearing, a ball bearing, a roller bearing, or the like. The second bearing 60 can suppress vibration between the one end 62 and the other end 64 of the traverse shaft 52.

[0027] The second bearing 60 is attached to the holder 96. The present application includes a fixed part 98 attached to the parallel part 90 and oriented perpendicular to the central axis 66 of the traverse shaft 52, and a fastening part 100 for fastening the holder 96 and the fixed part 98. The fastening part 100 is a bolt or a screw. The holder 96 is detachable from the fixed part 98. With the second bearing 60 and the holder 96 attached to the traverse shaft 52, the traverse shaft 52 can be removed from the coupling 74. In other words, the second bearing 60 is fixed to the retaining member 82 and is detachable.

[0028] A method for removing the traverse shaft 52 will be described. The second vertical part 92 is rotated or removed relative to the parallel part 90, and the fastening part 100 is removed to remove the holder 96 from the fixed part 98. The traverse shaft 52 is removed from the coupling 74, and thus the traverse shaft 52 is removed from the motor 56 (FIG. 6). Maintenance of the traverse shaft 52 and the traverse 54 can be performed.

[0029] A method for mounting the traverse shaft 52 will now be described. The traverse shaft 52 is mounted to the coupling 74. The first bearing 58 holds the other end 64 of the traverse shaft 52, and the second vertical part 92 is fixed so as to be perpendicular to the parallel part 90. The holder 96 and the fixed part 98 are fixed with a fastening part 100. The traverse shaft 52 is rotatably mounted on the rotating shaft 70 of the motor 56, and the other end 64 of the traverse shaft 52 is held by the first bearing 58, and the portion between the one end 62 and the other end 64 is held by the second bearing 60.

[0030] As described above, by providing the second bearing 60, the present application can suppress vibrations occurring between one end 62 and the other end 64 of the traverse shaft 52. Even if the length of the traverse shaft 52 is increased, the cakes 32 can be produced while suppressing vibrations to the strands 14.

[0031] [Embodiment 2] The number of second bearings 60 is not limited to one. As in the traverse device 102 of Fig. 7, a plurality of second bearings 60 may be provided between one end 62 and the other end 64 of the traverse shaft 52. When the length of the traverse shaft 52 becomes long, the plurality of second bearings 60 suppresses vibration of the traverse shaft 52.

[0032] When the traverse shaft 52 vibrates, there may be some parts that vibrate significantly and some parts that do not vibrate. It is preferable to dispose the second bearing 60 at a part where the traverse shaft 52 vibrates significantly.

[0033] [Embodiment 3] The second bearing 60 is not limited to a member that contacts the traverse shaft 52, such as a sliding bearing, a ball bearing, or a roller bearing. For example, as shown in FIG. 8, it may be a through hole 106 formed in a holder 104. A gap is provided between an inner wall 108 that forms the through hole 106 and the traverse shaft 52. The inner wall 108 is designed not to contact the traverse shaft 52 when the traverse shaft 52 is stopped. When the traverse shaft 52 rotates and vibrates, the inner wall 108 comes into contact with the traverse shaft 52, suppressing the vibration of the traverse shaft 52. By forming the surface of the inner wall 108 from a slippery material such as a fluorine-based resin, it becomes easier to maintain the rotation of the traverse shaft 52.

[0034] As shown in Fig. 8, the holder 104 may be divided into a first holder 110 and a second holder 112. By dividing the first holder 110 and the second holder 112, the through hole 106 is opened, and the traverse shaft 52 can be removed from the through hole 106 (Fig. 9). The first holder 110 and the second holder 112 may be attached at one side with a hinge 114, and the other side may be fixed with a fastening member (not shown) or the like.

[0035] As long as the second bearings 60 and 106 surround the traverse shaft 52 completely and can suppress the vibration of the traverse shaft 52, the configuration is not limited to that described in this specification.

[0036] (Item 1) A fiber winding device according to one embodiment includes a gathering shoe that gathers multiple filaments to form a strand, a collet that winds the strand, and a traverse device that traverses the strand in the longitudinal direction of the collet as the strand is wound onto the collet, the traverse device including a straight traverse shaft having one end and another end, a traverse attached to the traverse shaft and having a curved portion against which the strand is applied, a motor that rotates the traverse shaft, and a bearing that surrounds and receives the outer periphery of the traverse shaft between the one end and the other end of the traverse shaft.

[0037] According to the fiber winding device described in paragraph 1, the vibration of the traverse shaft can be suppressed by supporting the traverse shaft between one end and the other end with a bearing. This suppresses the vibration of the strand, making it easier to form a cake of the desired shape on the collet.

[0038] (2) The bearing is disposed in a portion of the traverse shaft where there is no traverse.

[0039] According to the fiber winding device described in item 2, the traverse does not get caught on the bearing and inhibit the rotation of the traverse shaft.

[0040] (3) The bearing includes a plain bearing, a ball bearing, or a roller bearing.

[0041] According to the fiber winding device described in item 3, a bearing that enables smooth rotation of the traverse shaft is adopted.

[0042] (Item 4) The bearing includes a fixed part, a holder that holds the bearing, and a fastening part that fastens the holder to the fixed part.

[0043] According to the fiber winding device described in the fourth aspect, when performing maintenance on the traverse shaft and the traverse, the fixing part and the holder can be separated, which makes it easier to maintain the traverse shaft.

[0044] (Item 5) A coupling is provided for attaching one end of the traverse shaft to the rotating shaft of the motor, so that the traverse shaft is detachable from the rotating shaft of the motor.

[0045] According to the fiber winding device described in item 5, when performing maintenance on the traverse shaft and the traverse, the traverse shaft can be removed from the rotating shaft of the motor.

[0046] (Item 6) A plurality of the bearings are provided.

[0047] According to the fiber winding device described in item 6, the traverse shaft is supported by a plurality of bearings, which makes it easier to stabilize the rotation of the traverse shaft.

[0048] In addition, the present invention can be implemented in various forms with improvements, modifications, and changes based on the knowledge of a person skilled in the art without departing from the spirit of the present invention. The embodiments described above are not independent, but can be implemented in appropriate combinations based on the knowledge of a person skilled in the art. [Explanation of symbols]

[0049] 10: Fiber winding device 12: Filament 14: Strand 16: Gathering Shoes 18: Guide 20: Colette 22, 102: Traverse device 32: Cake 40: Extrusion device 42: Extrusion bar 44: Piston rod 52: Traverse shaft 54: Traverse 56: Motor 58, 60, 80: Bearings 74: Coupling 96, 104: Holder 98: Fixing parts 100: Fastening parts 106:Through hole

Claims

1. a gathering shoe that gathers a plurality of filaments to form a strand; a collet for winding the strand; a traverse device that traverses the strand in a longitudinal direction of the collet when the strand is wound around the collet; Equipped with The traverse device is a straight traverse shaft having one end and another end; a traverse attached to the traverse shaft and having a curved portion against which the strand is applied; A motor that rotates the traverse shaft; a first bearing that rotatably supports the other end of the traverse shaft; a second bearing that surrounds and supports an outer periphery of the traverse shaft between the one end and the other end of the traverse shaft and suppresses vibration between the one end and the other end of the traverse shaft; Equipped with The traverse shaft has a first location that vibrates more than a second location described below when the traverse shaft vibrates due to rotation, and a second location that does not vibrate more than the first location, and the second bearing is positioned at the first location to suppress vibration between one end and the other end of the traverse shaft.

2. a gathering shoe that gathers a plurality of filaments to form a strand; a collet for winding the strand; a traverse device that traverses the strand in a longitudinal direction of the collet when the strand is wound around the collet; Equipped with The traverse device is a straight traverse shaft having one end and another end; three or more traverses attached to the traverse shaft and having curved portions along which the strands are applied; A motor that rotates the traverse shaft; a first bearing that rotatably supports the other end of the traverse shaft; a second bearing that surrounds and supports an outer periphery of the traverse shaft between the one end and the other end of the traverse shaft and suppresses vibration between the one end and the other end of the traverse shaft; Equipped with A fiber winding device, wherein the second bearing is disposed between two adjacent traverses on the traverse shaft in a portion where there is no traverse.

3. 3. The fiber winding device according to claim 1, wherein the second bearing comprises a plain bearing, a ball bearing or a roller bearing.

4. A fixing part; A holder that holds the second bearing; A fastening part for fastening the holder to a fixed part; The fiber winding device according to claim 1 or 2, comprising:

5. 3. The fiber winding device according to claim 1, further comprising a coupling for attaching one end of the traverse shaft to a rotating shaft of a motor, the traverse shaft being detachable from the rotating shaft of the motor.

6. The fiber winding device according to claim 1 or 2, wherein a plurality of the second bearings are provided.

Images